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Патент USA US3064893

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Nov. 20, 1962
H..1-:. NOR 5
CALCULATING MACHINE HAVING SH
MECHANISM AND PRECONDITIONED T
CONTROL MEANS
Filed 001. 11. 1960
3,064,883
LE DIFFERENTIAL
E-OF-OPERATION
8 Sheets-Sheet 1
22
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FIG.|3
INVENTOR
- HERMAN ELDONZZRIS
HIS ATTORNEYS
Nov. 20, 1962
H. E. NORRIS
3,064,383
CALCULATING MACHINE HAVING SHIFTABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPE-OF-OPERATION
CONTROL MEANS
Filed Oct. 11. 1960
8 Sheets-Sheet 2
® HERMAhIIrELEDrBNONORRIS
M m1“!
BY
H13, ATTORNEYS
Nov. 20, 1962
H. E. NORRIS
3,064,883
CALCULATING MACHINE HAVING SHIF‘TABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPE-OF-OPERATION
CONTROL MEANS
Filed Oct. 11. 1960
‘
-
8 Sheets-Sheet 3
HIS ATTORNEYS
Nov. 20, 1962
H. E. NORRIS
3,064,883
CALCULATING MACHINE HAVING SHIF‘TABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPE-OF-OPERATION
Filed Oct. 11. 1960
CONTROL MEANS
8 Sheets-Sheet 4
INVENTOR
HERMAN ELDON NORRIS
HIS ATTORNEYS
Nov. 20, 1962
3,064,883
CALCULATING MACHINE'HA'VING SHIFTABLE DIFFERENTIAL
H E NORRIS
MECHANISM AND PRECONDITIONED TYPE-OF-OPERATION
CONTROL MEANS
-/ 271
HERMAN IELYBQIJIJOIGORRIS
WM 4
aywé?wé/é.
HIS ATTORNEYS
NOV- 20, 1962
H. E. NORRIS
3,064,883
CALCULATING MACHINE HAVING SHIFTABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPE—OF-OPERATION
CONTROL MEANS
Filed Oct. 11. 1960
8 Sheets-Sheet 6
lM/ENTO'R
HERMAN EII.DON NORRIS ‘
KM @ 7%;
HIS ATTORNEYS
Nov. 20, 1962
H. E. NORRIS
3,064,883
CALCULATING MACHINE HAVING SHIF'TABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPEHOF-OPERATION
Filed Oct. 11.1960
CONTROL MEANS
8 Sheets-Sheet 7
I‘NVENTOR
HERMAN ELDON NORRIS
' i
z/Mg/é.
Nov. 20, 1962
H. E. NORRIS
3,064,883
CALCULATING MACHINE HAVING SHIFTABLE DIFFERENTIAL
MECHANISM AND PRECONDITIONED TYPE-OF-OPERATION
CONTROL MEANS
Filed Oct. 11. 1960
8 Sheets-Sheet 8
FIG. l5
FIG. I6
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4
M
INVENTOR
HERMAN ELDON NORRIS
BY WWW’
?
HIS ATTORNEYS
United States Patent O?ice
1
2
3,064,883
contained in the totalizer mechanism, but rather an
amount representing the combination of the lower digits
only of the two amounts. That is, such printing mecha
nism type bars would be set in accordance with the
CALCULATING MACHINE HAVING SHIFTABLE
DIFFERENTIAL MECHANISM AND PRlECONDI
TIONED
MEANS
3,064,883
Patented Nov. 20, 1962
TYPE - OF - OPERATION
CONTROL
stopping of some stop bars by the totalizer mechanism
Herman Eldon Norris, Las Vegas, Nev., assignor to The
and the stopping of other bars by digit key abutments be
National Cash Register Company, Dayton, Ohio, a cor
fore
they have traveled their full extent of movement as
poration of Maryland
permitted by the totalizer mechanism. Thus, it is seen
Filed Oct. 11, 1960, Ser. No. 62,050
that, during both total and sub-total operations of ma
25 Claims. (Cl. 235-6015)
10 chines having the general construction illustrated and de
This invention relates generally to calculating machines
scribed in the above-mentioned representative patents, a
and, more particularly, to improved mechanism thereof
permitting a predetermined number of multi-cycle ma
chine operations to be performed and enabling totalizer
contained amounts to be accurately read during both total 15
and sub-total operations with item-entering digit keys re
tained in operated positions.
In the one particular embodiment of the present inven—
tion as herein illustrated and described, the calculating
machine is a motorized version of the manual type of
machine shown generally in the United States Letters
Patent to Heber C. Peters Nos. 1,386,021 and 1,646,105,
which issued, respectively, on August 2, 1921, and October
‘18, 1927, and in the United States Patent to Nelson White,
,No. 1,854,875, which issued on April 19, 1932. Refer
ence may be had to these patents for a complete disclosure
of machine mechanism which is not pertinent to the pres
ent invention and which, for that reason, will not be de
scribed or illustrated herein.
These typical machine constructions, as well as nu
merous other heretofore-known machines similar with
regard to certain details of construction, such as, for eX
ample, that construction other than the multiple totalizer
mechanism of United States Letters Patent No. 2,654,537,
which issued on October 6, 1953, to Harry L. Lambert,
are provided with a differential mechanism of the general
true reading of the accumulated amount contained in the
totalizer mechanism requires the digit key abutments not to
lie in the path of movement of the stop bars, since such
abutments represent not the accumulated amount, but
rather an individual item amount as selectively set up on
the digit keys; and, in accordance with the above descrip
tion, to insure a correct reading of the accumulated
amount contained in the totalizer mechanism, it has been
the practice, as heretofore known, to require all digits keys
to be returned to their unoperated positions prior to any
attempt being made for performing either a total or a
sub-total machine operation. This practice, as is well
known in the art, presents the problem of having to reset
the digit keys to their operated positions after the com
pletion of each sub-total or total machine operation, even
though such digit keys, as previously set to their operated
positions, represent an item amount which, for reasons
understood from later description hereof, is desired to be
entered into the machine totalizer mechanism both be
fore and after such sub-total or total machine operation.
That is, in view of such typical machine construction, re
quiring all digit keys to be maintained in unoperated posi
tions during totalizer-reading machine operations, an
item amount may not be retained on the ‘machine key
board for, with intervening totalizer-reading machine op
type having totalizer-actuating means and printer-setting
erations, repeated entry into the machine totalizer mecha
mechanism associated with and shifted selected distances
nism. It is this problem which the present invention is
in accordance with the longitudinal shifting of a plurality
designed to overcome, so that, as understood from later
of stop bars. The stop bars, as set out in detail in the 40 description hereof, a totalizer-reading machine operation
reference patents, are shifted ?rst forwardly and then
may be now performed with digit keys retained in their
rearwardly, each ‘machine cycle, to enable item amounts
operated positions, in turn permitting a reusable or what
to be entered either additively or subtractively into the
may be called a common factor type of item amount to
totalizer mechanism under some types of machine opera
be stored or memorized on the machine keyboard through
tions and enable accumulated amounts contained in the
out a plurality of item-entering and intervening totalizer
totalizer mechanism to be totaled or sub-totaled under
reading types of machine operations. Hence, with the
other types of machine operations.
present invention, an item amount as initially set up on
In accordance with such machine construction, and as
fully set out in the above-mentioned reference patents,
the machine digit keys, may be retained thereon and re
a desired item amount is entered either additively or sub- ‘
with intervening totalizer-reading operations taking place.
tractively into the machine by depression of digit keys
representing that amount, which keys, prior to machine
cycle initiation and the ensuing forward excursion of the
stop bars, present abutments in the path of movement
thereof to stop the bars at selected positions for causing,
at the proper time during the machine cycle, the totalizer
actuating means to enter that amount into the totalizer
mechanism. At the same time, a plurality of type bars
are positioned for imprinting the entered item amount on
peatedly entered into the machine totalizer mechanism,
Of course, each of such totalizer-reading operations will
re?ect the accumulated amount then contained in the
machine totalizer mechanism, as affected by the previous
item amount entered thereinto.
Thus in view of such typical machine construction re
quiring digit-key-actuating abutments to not interfere with
the stop bar movement during total and sub-total opera
tions, and to overcome the heretofore-customary practice
of requiring all digit keys to be therefore maintained in
a record material; that is, positioned in accordance with 60 unoperated positions during such total and sub-total op~
the shifting of the printer-setting mechanism along with
erations,. it is the primary object of the present invention
the stop bars.
to provide new and unique mechanism enabling both the
Also, as set out in detail in such prior patents, the total
total and sub-total machine operations to be performed
and sub-total machine operations are performed by per
regardless of digit key positioning; that is, with digit keys
mitting the stop bars to be shifted distances in accordance 65 maintained in either operated or unoperated positions.
with the accumulated amount contained in the totalizer
A further important object of the invention is the pro
mechanism rather than distances as set by depressed or
vision of novel control mechanism enabling a predeter
mined number of multi-cycle machine operations to be
performed for sequentially entering an item amount into
digit keys operated for entering an item amount into the 70 the totalizer mechanism and then reading the accumulated
machine, the printer type bars would normally be posi
amount contained therein during each machine operation.
tioned for imprinting, not the true accumulated amount
Still another important object of the invention re
operated digit keys. With such construction, should a
total or a sub-total machine operation be performed with
3,064,883
3
FIG. 10A is a view of said drive pawl of FIG. 9, .as
sides in such mechanism permitting an item amount
to be memorized or continuously stored by the digit keys
shifted to an operating position;
’
FIG. 11 is a view of additional cycle control mecha
nism associated with that of FIG..9;
FIG. 12 is a right sideelevation of the machine trip
throughout the predetermined number of multi-cycle ma
chine operations, such item amount being entered either
additively or subtractively into the‘ totalizer mechanism
during one part of each multi-cycle operation, and such
mechanism;
7
p
_
v
>
v
FIG. 13 is a schematic wiring diagram of the circuitry
item amount being retained ‘on the digit keys as the
affected accumulated amount is totaled or sub-totaled
employed in the invention;
FIG. 14 is a detailin right side elevation and in partial
during the remainder of each multi-cycle operation.
section
of certain parts of the totalizer mechanism of
A still further important object of the invention resides 10
the machine, as interconnected with certain parts of the
in means providing a single printing operation to be per
formed each multi-cycle machine operation for recording
‘ differential mechanism thereof;
'FIG. 15 is a fragmentary portion of a typical printed
the totalizer-contained accumulated amount as affected by
record which may be prepared by the machine; and,
the item amount previously entered therein.
FIG. 16 is a fragmentary portion of a further printed
A still further important object of the invention resides 15
record
which may be prepared by the machine.
.
in means for determining the sequence of machine func
General Description
As above mentioned, the typical calculating machine
tions to be performed during each multi-cycle machine
operation.
With these and incidental objects in view, the inven
tion includes certain novel features of construction and
combinations of parts, a preferred form or embodiment
of which is hereinafter described with reference to the
drawings which accompany and form a part of this speci
?cation.
embodying the present invention, and as herein illus
trated and described, is of the general type disclosed in
United States Letters Patent Nos. 1,386,021; 1,646,105;
present invention;
FIG. 2 is a view in elevation of the left side of the
have, as seen in FIG. 1, associated indicatdrwhee‘ls, 21;
which are visible thi‘oug'h a viewing aperture 22 provided
1,854,875; and, in part, 2,654,537. Referring to FIG. 1
herein, the mechanism of'the machine is enclosed in a
25 suitable cabinet or case 20 secured to a base member
Of the drawings:
which supports the framework of the machine. The ma-FIG. 1 is 'a fragmentary view in top plan of the for
chine is provided?with a totalizer-‘mechanism and‘ may
ward portion of a calculating machine embodying the
in the case 20. As seen in FIG. 7, a paper carriage 23,
machine, with the cabinet removed and with particular 30 extending
across the rear of the machine in the usual
reference to that part of the mechanism which is located
‘on the outside of the left vertical frame plate;
manner and as set out in detail in the Heber C. ‘Peters
FIG. 3 is a view in elevation of the right side of the
United States Patent No. 1,386,021, presents a platen
machine, with particular reference to that part of the
be wound for receiving printed impressions of item
_
24, around which a listing tape (not shown herein) may
mechanism located on the outside of the right vertical 35
amounts and ‘other digits entered into the mat-Shiner
,
Referring further to FIG. 1, the machine is provided
FIG. 4 is'a view in side elevation of that portion of
with a plurality of rows of digit keys 25, each row con
the machine mechanism which mainly is located on the
taining nine keys to represent the digits 1 to 9, inclusive; a
inside of the right vertical frame plate;
FIG. 5 is a top plan view, looking down upon the 40 cyclically-operable machine drive mechanism (FIG. 2),
providing cycles of operation for item entry and accumu
base of the machine, showing part of the cycle initiating
lated amount reading or withdrawal; an add motor bar or
means, the machine cycle control mechanism, and part
control key 26 for initiating a cycle of operation in which
of the means enabling digit amounts to be stored during
an item amount set up on the digit keys 25 is entered
machine operations;
frame plate;
FIG. 5A is a detail in section of the machine struc
L)
ture taken on line 5A—5A in FIG. 5;
to an unoperated condition before the initiation of a
FIG. 5B is a detail, as seen from the right side in
machine cycle; and a total lever 28 (FIGS. 3 and 4),
FIG. 5, of a guide frame permitting the differential stop
bars to be shifted from item-entering positions to totalizer
reading positions;
50
FIG. 6, on the sheet containing FIG. 4, is a detail of
a representative stop bar as positioned in alignment with
digit key abutments during item-entering machine cycles,
and as shifted away therefrom during totalizer-reading
cycles;
7
FIG. 7 is a right side elevational view of the printer
additively, into the totalizer mechanism of the machine;
a correction key 27 for returning depressed digit keys 25
the forward shifting of which initiates a machine op
erating in which the amount accumulated in the totalizer
mechanism is printed on the listing tape, while the rear
ward shifting of said lever 28 initiates a machine opera‘
tion in which the accumulated amount is cleared from the
totalizerrmechanism along with being printed on the
listing tape.
.
_ Although not speci?cally illustrated or described here
in along with the representative embodiment of the pres
ent invention, but in accordance with the disclosures con
tained in the reference patents, a subtract mechanism of
.1ng mechanism adjacent the center portion of the ma
the general type as best shown in the Nelson White
60
chine;
.
United States patent, No. 1,854,875, may be included for
FIG. 7A is a detail of mechanism, as included in FIG.
initiating a cycle of operation in which the item amount
mechanism and paper carriage, partly in section, and
with particular reference to type hammer and paper-shift
‘7, for disabling the type hammers during item-entering
7
cycles of the machine; _
FIG. 7B is a view in top plan of that mechanism shown
in FIG. 7A;
'
'
FIG. 8 is a view in rear elevation of paper spacing
control mechanism, as included in FIG. 7;
p
/
set upon the digit keys 25 is'entered subtractively into
the totalizer mechanism of the machine. Such mech
V65 anism, along with the mechanism associated with the add
control key 26, permits item amounts set up on the digit
‘keys 25 to be selectively entered either additively' or sub
' tractively into the machine totalizer mechanism.
FIG. 9 is a schematic representation of one line of ele
In this regard, reference is also made to United States
ments incorporated in the machine cycle control mecha 70 Letters Patent No. 2,665,063, issued to Nelson R. Frie;
nism, being illustrated at home position as seen from
berg and Oscar F. Larsen on January 5, 1954, which dis-.
the right of the machine, and including a drive pawl as
closes a calculating machine of the general type which
also illustrated in its home or rest position; 1 ‘
may also be included within the embodiment and scope
'FIG. 10 is a view of the drive pawl shown in FIG. 9,v
of the present invention. Such a machine is similar in
as shifted to a neutral or unoperating position;
75 construct1on to. those disclosed in the above-mentioned,
3,064,883
Peters, White, and Lambert United States patents, having
a differential mechanism of the same general type, hav
ing a slightly modi?ed totalizer mechanism, and having
individual total and sub-total control keys substituted for
the single total lever 28 illustrated and described herein.
A motor bar or add control key is included in such ma
6
mitting a predetermined number of multi-cycle machine
operations to be performed, provides an overall calculat~
ing machine extremely ?exible in operation and with a
wide range of available functions.
From the above general discussion of the invention, it
is seen that one desired embodiment thereof provides
chine construction, being substantially the same as the
for a calculating machine of the general type having ma
control key 26 hereof, and, in view of the above-men
chine drive means, totalizer mechanism, differential mech
tioned modi?ed totalizer mechanism, as disclosed in the
anism for entering digit amounts into and affecting ac~
Frieberg and Larsen patent, a subtract mechanism of 10 cumulated amounts contained within the totalizer mech
substantially different construction replaces that included
anism, means associated with and selectively setting the
in the illustration and description contained in the United
differential mechanism in accordance with a digit amount
States patent to Nelson White, No. 1,854,875.
to be entered into the totalizer mechanism, machine multi
Added to the basic machine employed in the present
cycle initiation and control mechanism, and mechanism
invention is a manually-settable machine operation con 15 dissociating the differential mechanism from the setting
trol knob 29, shown in FIG. 1 as located adjacent the
means in order that accumulated amounts contained in
front end portion of the left side of the machine cabinet
the totalizer mechanism may be a?ected without disturb
21). Such control knob 29, through mechanism associated
ing the digit amount setting means.
therewith as described later in. the speci?cation, provides
Although reference may be had to the above repre
means for selectively conditioning the machine to perform
sentative patents disclosing a ‘calculating machine having
a predetermined number of multiple-cycle operations.
the general construction embodied herein, enough of the
That is, upon the turning of the knob 29 from a designated
pertinent mechanism thereof will be described in the fol
starting position, such as “0,” to any desired digit posi
lowing detailed description to give a thorough under
tion as inscribed thereon, mechanism associated there
standing of the instant invention.
with is set, and, after later machine cycling through cycle
Machine Drive and Cycle Initiating Mechanism
initiating means, as will be shortly described, continuous
multiple-cycle machine operations are performed, one
Referring to FIGS. 2 and 12, the calculating machine
after another, until the control knob 29 is automatically
is driven by an electric motor 34 upon the closing of a
indexed back to its “0” position, at which time the
switch 35, which connects the motor to a source of elec
cyclically-operable machine drive mechanism is permitted
tric current (FIG. 13). The switch 35 is closed by a
to come to rest. A pointer member 30, ?xedly carried
roller 37 on a lever 36, said lever 36 being rotatably
by the machine casing 20, cooperates with the control
mounted on a shaft 39 journaled in the machine left verti
knob 29 for indicating at all times the number of continu
cal frame plate 40, as seen in FIG. 2. Secured to the
ous machine operations to be performed.
shaft 39, on the inside of the frame plate 40, is a multiple
A continuous cycle control lever 31 is included in the 35 armed lever 41, while on the outer side of the plate 40
machine construction as the means for initiating multiple
there is secured to the shaft 39 a three-armed cycle con
cycle machine operations in accordance With the setting
trol lever 45. These levers 41 and 45 are constantly
of the knob 29. This lever 31, shown located in FIG. 1
urged clockwise by a spring 46, shown in both FIGS. 2
to the left of the digit keys 25, when shifted rearwardly
and 12, but are normally restrained from so moving by a
within a slot 32 in the machine case 20, becomes latched
trip latch 49. As seen in FIG. 12, this trip latch 49 is
and causes the machine drive mechanism to be tripped
for continuous cycling as long as the control knob 29
is away from its “0” position. Then, as the knob 29
returns to “O,” as above set out, the lever 31 is released
from its latched condition and permitted to shift for
511, as seen in FIG. 12, by means to be described later
herein, a distance su?icient to remove it from under a
wardly within the slot 32, thereby releasing the machine
drive mechanism from its continuously-tripped condition
latch ear 42 of the lever 41, the shaft 39‘ and both levers
41 and 45 will likewise be turned clockwise under the
and permitting it to coast to its home or rest position, as
seen in FIG. 2.
force of the spring 46. During such clockwise movement,
pivotally mounted on a stud 50, which extends from a
bracket (not shown herein) secured to the frame plate 40‘.
If the trip latch 49 is swung clockwise about its pivot stud
a stud 4-3, mounted on a lower extending arm of the lever
Referring further to FIG. 1, an additional control key 50 41, will strike the lower end portion of the lever 36 to
33 is included in the machine construction, being located
turn it clockwise also, thus causing the roller 37 thereon
a spaced distance forwardly of the lever 31, and provid
to contact and close the switch 35, which completes the
ing means for selectively interrupting multiple-cycle ma
electric circuit (FIG. 13) for starting the motor 34.
chine operations initiated by the rearward shifting of the
As will be described shortly, the operation of the motor
lever 31. Thus, with the provision of such a control
34 causes a rear drive shaft 51 to oscillate ?rst counter
key, hereinafter referred to as the stop control key 33,
clockwise and then clockwise back to its home position
the predetermined number of continuous machine opera
(FIG. 12) and in the reverse directions as seen in FIG. 2.
tions, as set up on the control knob 29, and as initiated
A cam lever 52, secured to the drive shaft 51, normally
by the lever 31, may be stopped at any time if so desired
holds a detent 53 away from an car 38 turned from the
by the machine operator. Although the speci?c structure 60 upper end of the lever 36, toward which it is urged by
and precise mode of operation will be set out in detail
a spring 54, but, as the cam lever 52 turns counter-clock
later herein in reference to FIG. 2, it is sufficient to say
wise upon the rocking of the drive shaft 51 (FIG. 12),
at this time that such stop control key 33-, when. operated,
a lower shoulder 55 of the detent 53 will fall behind the
also unlatches the lever 31 and permits the drive mech
ear 3% as the lever 36 is moved clockwise, holding the
anism to thereby come to rest. Any remaining machine 65 switch 35 in a closed condition. Then the cam lever 52,
operations as set up on the control knob 29 may, of
on return movement at the end of the cycle, will strike
course, be resumed and completely by the mere shifting
a rearward end 56 of the detent 53, thereby lifting the
of the lever 31 again to its rearward, cycle-initiating posi
detent 53 upwardly away from the ear 38 to again open
tion.
the swtich 35 at the end of the machine cycle.
As will be later set out in detail in relation to FIGS. 70
The motor 34-, through reduction gearing not shown
4, 5, and 6, and as above included in the objects of the
herein, drives a horizontal shaft 58 counter-clockwise
present invention, structure is provided in the machine
(FIG. 2). Secured to the shaft 58, behind a plate 59,
construction enabling both total and sub-total machine
is a notched gear or wheel 60, which is adapted to be en~
operations to be performed with digit keys 25 retained in
gaged by the end of a pawl 61, such pawl 61 being
depressed conditions. Such structure, along with that per 75 pivoted to a drive or crank plate 62, which is rotatably
3,664,883
,
mounted on the shaft 58. The pawl 61 is normally urged
counter-clockwise into engaging position with the notched
Wheel 60 by a spring 63, but, when the cycle control
lever 45 is in home position, a stud 47 thereon bears
against an upper end portion of the pawl 61, as seen in
2,- to hold it from such engagement with the wheel
60. Then, as above mentioned with reference to FIG.
'12, if the trip latch 49 is rocked clockwise,- permitting
the levers 41 and 45 to be also rocked clockwise, the stud
47 on the lever 45 will be moved away from the pawl
61 and allow the pawl to engage the notched wheel 68
‘on the shaft 58. Thus, it _is evident that, as the motor
34 is started, the pawl 61 is engaged with the wheel 60
on the vsliaft_58,- and, due to its being mounted on the
crank plate 62, the crank plate 62 commences to move
‘counter-clockwise, as seen in FIG. _2. A drive link 64 is
pivoted by one‘ end to the crank plate 62 by means of a
7
F8
in detail in the aboveémention'edfpatents to Lambert and
to Frieberg and Larsen, upon the depression of a control
key, such as the add motor'ba'r 26 illustrated in this par
ticular embodiment of the invention, the machine maint
trip lever 82 is rocked clockwise (FIG. 3) about the pivotv
83 to overcome the tension of the spring 85, pulling the
link 78 forwardly and rocking the trip lever 75 counter-
clockwise. Upon such counter-clockwise rocking of the;
lever 75, the trip latch 49, which is normally urged in. a1
latched position under tension of the spring 85, is swung
to an unlatching position and permits the motor-activat
ing switch 35 to be closed in the usual manner, as set
out above in relation to FIG. 12. Then, after the machine
cycles and the cam lever 52 removes the detent 53 from
engagement with the lever 36, the trip latch 49 is again
urged to latching position through a reverse rocking of
the lever 75 under tension of the spring 85. In addition
to such manual tripping of the machine under depression
of the usual control keys provided thereon, the latch 49
titu'tl 65thereon. The ,other end of the link 64 is pivoted
‘to a bell crank lever 66, which is rotatably mounted on
the rear drive shaft 51. Also pivoted to the drive link 26 may also be swung to a tripping position by means of
64,'by means of a stud 67, is a lever 68 having a roller
stud 69 mounted near its outer end, which stud 69 co
operates with a notch in a drive plate 70 secured to
the shaft 51.
The stud 69 is normally urged into en
electrically-controlled mechanism now to be described’.
Referring further to FIG. 2, a link 86 is pivotally con-
nected by one end to a downwardly-extending arm of the.
‘lever 45 by means of a stud 87, which also anchors, as
gagement with the notch by a spring 71 extending be 25 shown in'FIG. 12, the above-mentioned spring 46. The
link 86 extends forwardly therefrom to have its other
tween‘the outer end of the lever 68 and a downwardly
end pivotally interconnect, by means of a stud 88, an
.extending‘ arm of the bell crank lever 66. This spring 71
upwardly-directed lever 89,, which is rockably mounted
is strong enough to hold the stud 69 in the notch to
on a stud 91 carried ‘by an extension member 48a of the
form a driving conneetionbetween the bell crank lever 66
left vertical frame plate 44}. A ?nger member 90 is
and the shaft 51 during all normal operations of the ma
?xedly carried by and extends upwardly from the lever
chine, but such connection will yield to any overload
placed on the machine.
As the crank plate 62 nears the end of its rotation, a
cam portion 72 thereof strikes a roller 48 carried by
the, downwardly and forwardly extending arm of the
cycle control lever 45, rocking said lever 45 clockwise
89. With such construction, it is seen that, as the lever
'45 is maintained in its unrocked position—that is, in the
position shown in FIG. 2——when the machine drive mech
anism is at home, the lever 89, through its ?nger mem
ber 99, maintains a current supply line switch 92 in
a closed condition, such switch becoming open as the
as seen in FIG. 2 and counter-clockwise as seen in FIG.
machine drive mechanism leaves home position and then
12. Referring further to FIG. 12, as the lever 45 is
again closing at the end of each cycle. As shown in
rocked counter-clockwise, it carries the lever 41 with it,
thus allowing the trip latch 49 to swing under its ear 42 40 FIG. 2, the switch 92 extends downwardly from a bracket
93, which is secured to the left vertical frame plate
and hold it in home position. In this position, the motor
40
at a zone above the lever 89.
switch 35 is open, since the cam lever 52 shifts‘ the de
A second switch 94, extending upwardly ‘from the
tent 53 from holding engagement with the lever 36,
bracket 93, is normally open but may be closed by shift
thereby permitting the leaf 35a of the switch 35 to rock
}
ing an actuating roller 96 thereagainst. This roller 96,
the lever 36 counter-clockwise and under the detent 53.
as seen in FIG. 2, is carried on the outer end of an arm
' The trip latch 49 is moved to machine-tripping posi
95, which, by means of a stud 97, is pivoted to and ex
tion by an outer free end portion 76 of a trip lever 75
tends rearwardly from the above-mentioned continuous
pivoted, adjacent its other end, by a stud 77 to a rear
cycle control lever 31. Such lever 31, as seen in FIG. 2,
base plate 73 of the machine (FIG. 5). The actual trip
is rockably carried on a frame-carried bolt 100, being
ping of a calculating machine embodying the present
normally urged clockwise thereabout 'by means of a
invention may be effected by various means; that is, the
spring
101 extending therefrom to a forwardly-positioned
swinging of the trip latch 49 from under the car 42 of
stud 102. Thus, as the lever 31 is manually shifted
the three-armed lever 41 as above described. Looking
rearwardly within the slot 32 (FIG. 1)-that is, rocked
particularly to FIGS. 3 and 5, and referring to the above—
counter~clockwise about the bolt 1%, as seen in FIG. 2——
55
to
Lambert,
No.
,mentioned United States patents
the switch 94 is closed by the roller 96 ‘being shifted
2,654,537, and Frieberg and Larsen, No. 2,665,063, it is
'. thereagainst as the arm 95 is moved rearwardly, and,
seen that the machine may be effectively tripped upon the
although various guide means may be provided for con
depression of the illustrated add motor bar or control key
trolling the path of travel of the roller 96, in the pre
26, or the subtract control key or lever if provided in
ferred embodiment of the invention as illustrated herein,
the machine construction, through the following mech
such guiding is performed by means of a frame-carried
stud 98 slidingly engaging va longitudinal slot 99 pro
Referring to FIG. 5, the trip lever 75 is coupled to the
vided in the arm 95.
add control key 26 by a link 78, interconnected to the
Referring‘ now to FIG. 5, upon such initial closing
lever 75 by a pivot stud 79 and extending therefrom to
of the switch 94, a circuit is completed for energizing
ward the front of the machine. As seen in FIG. 3, the
a trip solenoid 103, which, through inward shifting of its
forward end of the link 78 is pivoted to the lower extend
rearwardly-directed core member 184, rocks the trip lever
ing arm of the machine main trip lever 82, pivoted to
‘ 75A counter-clockwise about its pivot stud 77 to swing
the machine right vertical frame plate 80 by a pivot stud
the trip latch 49 from under the ear 42 of the lever 41
83. The forwardly extending arm of the main trip lever
(FIG, 12). > Upon this happening, the motor switch 35
70
82 has an ear 84, which is yieldingly held against the
is
then closed by the roller 37 as above described, thus
right frame plate 80 by aspring 85, thus urging the link
starting the motor 34 in operation. As illustrated in
In
this
position,
under
the
~ 78 constantly rearwardly.
FIG. 5, the trip solenoid 103 is secured to the rear base
tension of such spring 85, the lever 75 is in a non-tripping
plate 73 of the machine, having the outer end of its core
position and maintains the trip latch 49 under the ear
member 104 pivoted to the trip lever 75 at a zone approxi
42 of the lever 41 (FIG, 12). In the manner set out 75
amsm.
.
‘
3,064,883
9
mately central of the outer free end 76 and the link
stud 79 thereof.
As seen in FIG. 13, wherein the circuitry illustrated is
that as effected when the calculating machine is at home,
or rest, position, an additional switch 103a is included in
the tripsolenoid-energizing circuit, being associated with
machine cycle control mechanism which will be described
in detail later in this speci?cation. At this time, it is
sufficient to say that such switch 1%311 is maintained in a
closed condition ‘by such mechanism when the calculating
machine is at home position; that is, not in the process
of performing a multiple-cycle operation as later de—
scribed.
7
From the above description, and in view of the cir
cuitry illustrated in FIG. 13, it is seen that the calcu
lating machine embodying the present invention may be
cycled for operation in several ways. In the one in
stance, the motor ‘bar 26 may be depressed for manu
10
which, when they are selectively depressed to set up
amounts to be entered into the machine, are moved into
position to control the extents of movement of the differ
ential mechanism according to these amounts. In gen~
eral, the keyboard construction includes a top plate 115,
a bottom plate 116, a left side plate 117 (FIG. 2), and
a right side plate 118 (FIGS. 3 and 4). The digit keys
25 are provided with key stems 25a, slidably mounted in
aligned s‘ots cut in the top and bottom keyboard plates,
being normally yieldingly held up in ineffective positions
by means of springs (not shown herein) and projecting
below the bottom plate 116 as digit keys 25 are depressed
for entering item amounts into the machine. As will be
described later in detail, such projecting key stems 25a
control the movement of the differential mechanism and
its associated printing mechanism.
As also set out in detail in the Schroder United States
Patent No. 2,062,731, the usual zero stop bail and latch
ally rocking the trip lever 75 as above described. In
ing bail are included in the keyboard construction, the
the other instance, the lever 31 may be shifted rearwardly
latter of which bails latches any depressed digit key 25 in
20
Within the slot 32 (FIG. 1) for closing the switch 94
operated condition until it is released, prior to a machine
and completing a circuit to the trip solenoid 103, which,
cycle, by depression of another digit key in that row or
as above described, also rocks the trip lever 75. In each
by the clockwise rocking of a key release bail 120 (FIGS.
instance, the rocking of the trip lever 75 causes the trip
3 and 4). Although several means are normally pro
latch 49 to be removed from under the car 42 of the
vided in machine constructions for so rocking the key
lever 41, thereby permitting the motor switch 35 to ‘be 25 release bail 120, including the usual by-pass pawl of the
closed ‘for starting the motor 34 in operation and oscil
Schroder United States patent, which causes all digit keys
lating the rear drive shaft 51 as above described. Re
to be released near the end of each machine cycle, the
ferring especially to FIGS. 2 and 13, although the switch
sole means incorporated herein for rocking the bail 12'0
94 may be maintained in a closed condition, either by
is the above-mentioned manually-operable clear or cor
manually holding the lever 31 in its rearwardly-shifted
rection key 27. As fully disclosed in the Heber C. Peters
position or through automatic latching means as will be
United States Patent No. 1,386,021, such key 27, when
later described in relation to the multiple-cycle control
depressed, engages a stud 121 of the bail 120, thereby
mechanism, ‘the energizing circuit is removed from the
rocking the bail 120 and releasing the keys in the usual
trip solenoid 103 upon the closing of the switch 35, since,
manner. This single means for actuating the key release
simultaneously therewith, the switch 92 becomes opened
bail 120 seems self-evident when considering the overall
as the machine drive mechanism moves from its home
scope of the present invention, wherein, as above de
position,
scribed, each digit amount is desirably maintained or
As above mentioned, the drive shaft 51, which extends
“stored” on the machine keyboard throughout a plurality
transversely between the machine frame plates 40 and
of multiple-cycle operations.
89, oscillates ?rst counter-clockwise and then clockwise
(FIGS. 3 and 4) during each machine cycle. Referring
especially to FIG. 3, adjacent the frame plate 80, the
rear drive shaft 51 has secured thereto a plate-like mem
Di?erential Mechanism
The differential mechanism used in the present inven
tion is substantially like that fully shown and described
ber 135, connected by a link 1% to the usual full-stroke
in the United States Patent to Nelson White No. 1,854,875
sector 1M secured to a main shaft 108. The main shaft 45 and will, therefore, be but brie?y described herein. In
108 also is mounted in the frame plates 49 and St} for
such construction, a differentially-operable means is pro
oscillating movement therein at a zone forward of the
vided for each denominational row of digit keys 25, and,
rear drive shaft 51.
since all of these means are substantially alike, it is be
The plate-like member ‘165 (FIG. 3) has, in its for
lieved that an understanding of the construction and
ward edge, a depression into which a roller 109 is urged
operation thereof will be clear from the following de
by a spring 111. The roller 109 is carried by a bell
scription of a typical one of them only.
crank 110, which is pivotally mouted on the frame plate
As shown in FIGS. 4 and 6, a stop bar 122 is located
80. The notch or depression is so located in the member
immediately below each row of keys 25. This stop bar
105 that it will be positioned opposite the roller 1%?
122 is pivotally connected at its rear end by a stud 123
when the member is in its normal, home, position, there
to a diverging lever 126 and is supported by a slotted plate
'by cooperating with the roller 1419 in assisting parts of
or comb 128 at its forward end so as to be suitably guided
the machine to be restored to their normal, home, posi
tions.
Mac/zine Keyboard
The machine is provided with ya suitable keyboard in
which the digit keys 25 for controlling the movement of
the differential mechanism are mounted. The keyboard
is of the well-known type upon which digit amounts
may be set up to control the entries of amounts into
for sliding movement. A spring 124, which is connected
between a stop bar stud 125 and a forward cross-shaft
129, normally urges the stop bar 122 forwardly of the
60 machine; that is, to the left as seen in FIG. 4. When the
machine operates, the stop bar 122 will be allowed to
be moved to the left or forwardly of the machine by the
spring 124 until one of the abutments on the upper edge
of the bar engages the lower end of the stem 25a of a
depressed key 25 to limit the movement of the stop bar
the machine, being fully shown and described in United
122 to an extent which corresponds to the value of the
States Letters Patent to Charles Schroder No. 2,062,731,
depressed key.
which issued December 1, 1936, and to which patent
The diverging lever 126 is pivotally mounted on a
reference may ‘be had for the speci?c details of its
diverging lever shaft 127 and has a rearward extension to
construction.
70 which is connected an amount printing type bar 130. As
For an understanding of the instant invention, it is only
the stop bar 122 moves forwardly of the machine, the
necessary to explain that the keyboard is made up of the
diverging lever 126 will move therewith, being rocked
plurality of rows of digit keys 25, one row of which is
counter-clockwise (FIG. 4) about the shaft 127 a dis
shown in FIG. 4, which keys are normally out of con
tance proportional to the value of the depressed key, and
trolling relation with the differential mechanism and 75 will position the type bar 130 accordingly to place in
12
11
tion, in more or less detail, particularly in reference to the
printing position the type corresponding to the depressed
key.
‘
machine multi-cycle control mechanism, it is sufficient
to say at this time thatsuch control mechanism, through
,
As further set out in the Nelson White United States
a cam member, an arm, and a link, periodically shifts the
.Patent No. 1,854,875, a rack lever 351 is also pivotally
mounted on the shaft 127 (FIG. 4), immediately adjacent
‘the diverging lever 126 (FIG. 6). As illustrated (FIGS.
-4 and 6), the construction of these diverging and rack
comb 128 from its solid-line position of FIG. 5 to its dash
line position thereof, and then returns it back to its start»
ing position during designated machine cycles. As best
seen in FIG. 5, this aim, herein designated as control afni
136, is pivotally mounted on a base-carried bracket 139
Ilevers 126 and 351 is somewhat different from that em
;ployed in the White machine, in that both the gooseneck
.arm and the extension thereof are herein eliminated. The 10 by means of a bolt 1.46. A rearwardly-posi'tioned roller
stud 137 thereof operably engages said cam member,
rack lever 351, as further illustrated in FIG. 14, carries
while a forwardly-positioned stud 138 thereof pivotally
at its upper end a totalizer-actuating rack 352 associated
connects one end of the above link, herein designated as
with the usual totalizer mechanism, which is also de
control link ‘141, which in turn pivotally interconnects at
scribed only brie?y herein in view of the prior disclosure
thereof in boththe Peters Patent No. 1,386,021 and the 15 142 the lower right end portion of the comb (FIG. 5B).
With such construction, as the machine multi-cycle con
White Patent No. 1,854,875. By means of an intervening
trol mechanism cam member is rotated during machine
hub 350 (FIGS. 4, 6, and 14), the rack lever 351 is
cycles of operation as later described in the speci?cation,
permanently joined to the diverging lever 126 and moves
the stop bar guide plate or comb 128 is effectively shifted
therewith to effect the totalizer mechanism in accordance
with the movement of the stop bar 122 as above described.
This interconnecting of the rack lever 351 with the
?rst leftwardly by the cam member'and then returned
fdiverging lever 126, as speci?cally set out in the White
'
vi-Patent
No. 1,854,875, results in an overall diverging lever
-rsubstantially the same as the original diverging lever of
‘the standard Peters adding machine, being a unitary mem
ber, as disclosed in the Peters Patent No. 1,386,021.
'With such construction, ‘when the diverging lever 126
rocks counter-clockwise (FIG. 4) about the shaft 127 as
position of FIG. 5'.
.
Referring further to FIG. 5, it is apparent that, as the
comb 128 is so shifted back and forth along the support
thereby to its starting position; that is‘, to the solid-line
ing frame 132, the plurality of stop bars 122 guided there;
by, one for each row of digit keys 25, must likewise be
shifted therewith. As seen in FIG. 6, where a typical
stop bar 122 is illustrated in relation to its diverging lever
126 and guiding comb 128, such shifting of each stop
the stop bar 122 moves forward to contact a depressed
‘ key 25, the rack lever 351 and its associated rack 352, 30 bar is permitted in view of the normally loose pivotal
which are joined thereto (FIG. 14), will be given a similar
movement.
The diverging lever 126, its permanently interconnected
rack lever 351, and the stop bar 122 are normally held
in their home positions, shown in FIG. 4, by means of 35,
the usual bail 131, which engages the upper front edge .
' of the diverging lever 126
(see also FIG. 14). The bail
_
interconnection between its rear end and the associated
diverging lever; that is, such stop bar rear end being
loosely mounted on the diverging lever stud 123. There
fore, in accordance with such construction, as the comb
128 is actuated from its home position, which is the solid»
line position of FIGS. 5 and 6, to its shifted, or dash-line
posiiton thereof, the forward end of each stop bar 122
is shifted a like distance, which, as seen in FIG. 6, is sufe
' 131 extends across the machine and, as shown fully in
?cient to remove its upstanding abutments from under the
said White patent, is supported at its ends by the usual
pair of arms, which are operated to move the bail for 40 associated row of digit keys 25. Then, upon the return
shifting of the comb 128 to its home position, each stop
ward an amount suf?cient to allow the maximum extent
bar 122 is again shifted back to he immediately below
of setting movement of the diverging lever 126 during the
?rst half of a machine cycle, and which return the bail
and the lever 126 to the position shown in FIG. 4 during
the last half of a machine cycle, as is well known in this
type of machine.
,
-
In the operation of the differentially-operable means,
its row of digit keys 25. Although the extent of forward
movement of each stop bar 122 is'controlled by an oper
ated digit key 25 located thereabove when in its home
position, each stop bar 122 is not affected by that depressed
~ or operated digit key 25 when in its shifted position and
may, therefore, travel an extent wholly independent
.of a digit key 25 which may be retained in its operated
stop bar will move with the bail 131 until one of the
abutments on the stop bar 122 engages the lower end of 50 or depressed condition.
a key stem 25a to prevent its further movement, after
Totalizer Mec‘han‘irml
which the bail 131 leaves the upper front edge of the lever
As
mentioned
above,
the totaliZer mechanism of the
126 and continues its movement. In its return move
therefore, the diverging lever, the rack lever, and‘ the
instant invention is substantially like that illustrated and
described in the Peters and White patents, to which refer
the rack lever 351 from their set positions and carries
ence may be had for a most complete understanding of
them and the stop bar 122 with it back to their normal
its
construction and mode of operation.
positions, as shown in FIG. 4.
Essentially, the totalizer mechanism is carried across
As above described, he stop bar guide plate or comb
the upper portion of the machine, having its previously
128 extends across the forward end of the machine to
position and guide each stop bar 122 in'relation to its 60 mentioned indicator wheels 21 (FIG. 1) rotatably car
ried by a shaft-like rod 353, which rod, as seen in FIG.
associated row of digit keys 25. Looking at FIGS. 5,
14, is part of a number wheel frame 354, and which
5A, and 5B, such comb 128 is carried by a rearwardly
ment, the bail 131 picksup the diverging lever 126 and
and upwardly-directed leg of a supporting frame “132
. ?xedly extending between the machine frame plates 40
, and 80, and, by means of a
plurality of comb-carried
frame, as further seen in FIG. 4, is carried by a rock
shaft 355 extending between the machine frame plates
40 and 80. In the usual manner, as set out in detail in
the Peters Patent No. 1,386,021, the number wheel
guide slots 133' coacting with a like number of frame-_
frame 354 is made up of a plurality of interconnected
' carried studs 134, said comb 128' is enabled to be shifted
. partition and end plates, and, through the selected rock
leftwardly, as seen in FIG. 5, a set distance along its sup
ing of a machine type of operation lever (not illustrated
porting frame 132. An overturned ?ange 135 is pro
vided adjacent each end of the frame 132, extending over 70 herein), is caused to be moved upwardly and downwardly
at a precise time during machine cycling. As further
seen
in FIG. 14, each totalizer-actuating rack 352 is
a close relationship between the ?xed frame and the
adapted to mesh with a totalizer pinion 356, which is
shiftable comb.
"secured to ‘a related one of the indicator wheels 21. Asso
Although the precise means for shifting the comb 128
along its frame 132 will be described later in the speci?ca 75 ciated with such rack 352 and pinion 356 are the custom~
the upper edge portion of the comb 128 for maintaining
,
3,064,883
13
ary transfer and control mechanisms, being supported in
the usual manner on shaft-like rods 143 and 144, extend
ing between the machine frame plates 41} and. St} (FIGS.
2, 4, and 14).
1
verging lever 126 and the interponent 153 is thereby per
mitted to rock, as above described, toward the lower step
of the hammer latch 152. This included structure, as
will now be described, effectively controls the extent of
rocking of the interponent 153 after it has been released
With such overall construction, which, in view of the
Peters and White reference patents, is well known to
for rocking by the shifting of the type bar 151}. That is,
those skilled in the art, it is understood that either clock
when once released for rocking, the interponent 153 may
wise or counter-clockwise rotation may be imparted to
still be allowed a limited rocking only, insu?icient to
the totalizer pinions 556 through each rocking of the di
engage the lower step of the hammer latch 152 and there
verging levers 121 and their interconnected rack levers 10 by not rocking such latch 152 as the interponent is shifted
351, depending upon both the point of time at which
during a machine cycle.
and the length of time for which such pinions 356 are
As best seen in FIGS. 7 and 7A, a print bail 161 is
caused to mesh with the actuating rack 352, as con
rockably carried by a shaft 165 extending between the
, trolled by upward and downward rocking of the number
machine frame plates 40 and 30, such bail 161 being nor
wheel frame 354 during machine cycling. Thus, through 15 mally urged counter-clockwise by means of a spring 164.
rocking of the number wheel frame 354, as directed by
A left arm member 162 is turned rearwardly therefrom
both digit-entering and reading operations of the instant
to slidingly engage, by means of a bifurcated end por—
machine, the totalizer mechanism is actuated by the above
tion, a stud 167 carried on the upper end of a bell crank
mentioned rack levers 351 associated with the diverging
166 rockably mounted on a second shaft 169. As seen in
levers, receiving item amounts therein when the stop bars
FIGS. 2 and 3, this shaft 169 extends between the frame
122 are set in accordance with operated digit keys ‘25 and
plates 40 and 80. A second arm member 163 (FIG. 4),
giving accumulated amounts therefrom when such stop
turned rearwardly and somewhat downwardly from the
bars 122 are set in accordance with the totalizer mecha
right end of the bail 161, will be described later herein
nism itself, the latter of which requires all digit keys 25 to
in relation to bail-actuating means associated with the
be in ineffective positions in relation to the stop bars 122.
Printing Mechanism ‘and Record-Feeding Means
Printing is performed in the instant machine by the
well-known printer as illustrated in the above-mentioned
United States reference patent to Harry L. Lambert, No.
2,654,537, and as set out in detail in United States Letters
Patent to Nelson R. Frieberg and Oscar ~F. Larsen, No.
2,813,611, which issued on November 19, 1557.
As above mentioned in reference to the differential
mechanism, a rearwardly-extending portion of the diverg
ing lever 126 is pivoted to the type bar 13b. As seen in
FIG. 7, this type bar 1311 is movable vertically in slotted
guides 148 and 149 with respect to the paper platen 24,
and in accordance with the selected positioning of the
diverging lever 126 under control of the associated stop
bar 122. The type bar 130 has, at its top portion, a plu
rality of individual type members 15%}. When a particular
type member 150 is moved to a printing position, it is hit
by a printing hammer 151 when released from a cocked
position, at printing time, by the tripping of a latch 152.
Referring to FIG. 7, when the type bar 131} is selectively
_ raised to printing position as above described, a stud 147
thereon enables an interponent 153 to rock counter-clock
wise on a bail 154 under urge of a spring 155. The bail
154 is secured between an arm 156 and another arm, like
the arm 156, secured on a shaft 157, which extends be
tween the printer vertical side plates 145 and 146 (FIG.
7B). A cam lever 158, secured on the rear drive shaft
multi-cycle control mechanism of the machine. To pro
vide a more thorough understanding of the approximate
location of members now being described, it may be
stated that the bail right arm member 163 lies near the
machine right frame plate 81%, whereas the bail left arm
member 162 and its associated bell crank 166 are located
adjacent the outer side of the printer left vertical side
plate 145 (FIG. 73).
Referring further to ‘FIG. 7A, a link 170, by means of
a bell crank stud 168, is pivotally interconnected by one
end to the bell crank 166. The link 17% extends down~
wardly therefrom to likewise pivotally interconnect,
through a stud 171, the forward end of a print control
arm 172, which is rockably mounted on the left end of
a printer shaft 175, also located on the outer side of the
printer left vertical side plate 145. A second bail mem
ber, herein referred to as a print control bail 176, is
rockably mounted on a second printer shaft 1% and is
so positioned thereon, between the printer side plates 145
and 146, to extend immediately below the forward end
portion of each interponent 153. By means of an out
wardly-directed stud 178, carried by an upwardly- and
rearwardly-turned arm portion 177 of the bail 176, such
bail is operably interconnected with the print control arm
172 and its associated link 176, bell crank 166, and bail
161. Although not speci?cally illustrated herein, the
stud 178 extends freely through an opening in the printer
left vertical side plate 145 to slidingly engage, as shown
in FIG. 7A, a slot 173 in the rear end portion of the
51, is also rocked ?rst counter-clockwise and then clock
print control arm 172. A spring 179, stretched between
wise during each machine cycle. With such counter
a control arm stud 174 and a side frame stud (not shown
clockwise rocking of the cam lever 158, a stud 159 thereon
herein), normally urges the print control arm 172 counter
strikes the tail 161] of the arm 156, shifting the bail 154
clockwise, and, in view of the above-described stud 178
and the rocked interponent 1‘53 toward a lower step of
and
slot 173 interconnection, the print-blocking bail 176
the hammer latch 152, which thereby is moved to unlatch
thereby, likewise, normally urged in the same direc
ing position near mid-cycle of a machine operation. As 60 is
tion. When so positioned, the bail 176 prevents sufficient
seen in FIG. 7, such actuation of the hammer latch 152
rocking
of the interponents 153 for actuating the hammer
is permitted if, and only if, the type bar 130 has been
latches 152 as above described. This is best illustrated in
moved from home by its diverging lever 126, so as to
FIG. 7, wherein such bail 176 is illustrated as operably
shift its stud 147 and render the interponent 153 effective
associated with the usual printer mechanism. Referring
for causing the printing hammer 151 to hit the type mem
thereto,
it is seen that each interponent 153, when released
ber 1511 which is positioned at the printing station. Should
for rocking by its type bar 130, is permitted a slight rocr the type bar 139 not be moved from its home position by
ing movement only before contacting and being stopped
the diverging lever 126, it is clear that the interponent
by the bail 176. This movement, the extent of which is
153 will not be permitted to rock counter-clockwise for
herein illustrated by the dash-line position of the inter
actuating the hammer latch 152 when shifted, as above 70 ponent as stopped by the bail, is less than that required
described, by the cam lever stud 159.
for engaging the lower step and actuating the trip latch
Referring further to FIG. 7, along with FIGS. 7A and
152 as above described.
713, additional structure is included in the printer mecha—
Thus, in the normal, spring-urged position of the bail
nism for normally disabling a printing operation even
176, as seen in FIGS. 7 and 7A, the printing operation is
though the type bar 130 is moved from home by the di 75 effectively prevented during each machine cycle. On the
3,064,883
15
other hand, and in accordance with such mechanism dis
closed herein, the printing operation may be performed
by overcoming such normal positioning provided by the
tively rocking the bell ‘crank’ 2112 during multi-cycle ma
chine operations.
7
Machine Cycle Control Mechanism
Referring again to FIG. 2, upon machine cycling being
initiated by the rearward shifting of continuous cycle
tension of the spring 179. In this regard, it is apparent
that, as the bail 161 is rocked clockwise about its pivot
shaft 165, the bell crank 166 will be thereby rocked
,control lever 31, thereby closing the switch 94 and en
counter-clockwise about its pivot shaft 169‘, and, through
ergizing the trip solenoid 103, unique control mechanism
the shifting of the link 1711 thereby, the print control arm
of the present invention is conditioned for causing a three
172 will be rocked clockwise about its pivot shaft 175.
cycle
machine operation to be performed. In this regard,
Upon this happening, the print control bail 17 6‘ will like 10 and in accordance with the preferred embodiment of the
wise be rocked clockwise about its pivot shaft 180, being
invention, the ?rst cycle may be termed an add cycle for
thereby removed from its normal blocking position and
entering the item amount, as set up on the digit keys 25,
permitting the interponent 153» to rock the distance re
additively into the totalizer mechanism; the second cycle
quired for tripping the hammer latch 152‘ when it is
may be termed a non-add cycle for conditioning the ma- _
shifted forwardly, as above described, during the machine ,15 chine mechanism for a totalizer reading operation; and
cycle. As above mentioned with reference to the second
the third cycle may be termed a sub-total cycle for reading
arm member 163 of the bail 161, speci?c means for rock
and printing the amount contained in the totalizer mecha
ing the bail 161 and causing a printing oepration to be
nism. Of course, the ?rst and third cycles, above referred
performed will be described later herein.
to as being preferably add and sub-total cycles, may
Referring further to FIG. 7, it is seen that the record 20 conveniently be changed, respectively, to subtract and total
feed mechanism of the instant invention is substantially the
cycles if so desired for a particular application of the
same as that disclosed in the above-mentioned United
machine. In any event, such three cycles constitute
States Letters Patent to Nelson R. Frieberg and Oscar
one machine operation, and, in view of the control knob
F. Larsen No. 2,813,611. Pivoted to the paper carriage
29 with its associated mechanism, as will be described
left side plate 182 is an arm supporting the left end of
shortly, a predetermined number of such three-cycle ma
a vertical feed bail 185. The right end of the feed bail
185 is supported by a second arm, like the arm 183‘ illus
trated herein by dash lines, pivoted to the paper carriage
right side plate. The feed bail 185 is biased to swing
clockwise about its pivots by a spring 186 wound around
the pivot of the second arm 183 and hooked over the
chine operations may be easily and accurately provided.
As the lever 31 is shifted rearwardly for closing the
switch 94, a stud 206, carried by the lower end thereof,
is shifted forwardly to a position behind an upper shoulder
209 of a switch latch 207. The latch 2137 is rockably car
ried, by means of a pivot stud 211, on the left vertical
bail. Pivoted to a centrally-disposed frame-supported
frame plate 40 of the machine, having its major length
member 1817, by means of a pin 188-, is a yoke 189‘, sup
208, including the shoulder 209, extending rearwardly
porting a roller 19% and having a forwardly- and up
of the pivot stud 211, and its minor length 210 extend
wardly extending arm portion 191. The outermost end 35 ing forwardly and upwardly therefrom. A spring 213‘ ex
of the arm portion 191 rests against the stud 159 of the
tends between the outermost end of the length 208 and
cam 158 secured to the machine rear drive shaft 51.
the upper positioned frame stud 98‘ to yieldingly urge
When the machine is at home, the roller 190, which
the latch 207 clockwise and in constant abutment with the
constantly bears on the forward edge of the feed bail
stud 206. Thus, whenthe lever 31 is shifted rearwardly
185, keeps the feed bail rocked to its counter-clockwise
' a distance suf?cient to close the switch 94, its stud 206
position. As the machine operates, the rear drive shaft
will fall behind the shoulder 209‘ of the latch 207, thereby
51 moves the cam 153 and its stud 159 away from the arm
automatically retaining the lever 31 in its shifted posi
portion 191, thereby enabling the bail 185 to rock clock
tion and maintaining the switch 94 in a closed condition.
wise unless otherwise prevented. As also seen in FIG. 7,
Such latching of the lever 31 is retained until the normal
the upper end portion of the arm 183 has pivoted thereto, 115 tension of the spring 213 is overcome and the latch 2117
at 193, a record feed pawl 192, which is held rocked by
is rocked counter-clockwise to remove the shoulder 209‘
a spring 194 to normally abut a stud 195. A forward
from in front of the stud 206, at which time the spring
toothed end of the feed pawl 192', when the machine is
101 returns the lever 31 to its unoperated or forward posi
at rest, or home, nearly engages a ratchet wheel (not
tion.
shown herein) secured to the right end of the platen sup 50
As mentioned earlier in the speci?cation, the stop con
port shaft 24a. Therefore, as the machine commences
trol key 33 provides one means for unlatching the lever
operation and the feed bail 185 moves toward the ma
, 31 from its operated position. Such key includes a down
chine rear drive shaft 51, the feed pawl 192 is drawn rear
7 wardly-extending stem portion 214 slidingly guided for
wardly, and, on the last half of the machine cycle, such
approximately vertical movement by means of an upper,
pawl 192 moves forwardly to contact a tooth on the ratchet
key-frame
stud 119 slidingly engaging a slot 215 therein,
wheel and move it, along with the platen 24, coupled
and a lower, machine-frame plate stud 218‘ slidingly
thereto, in a vertical record-feeding direction.
engaging a bifurcated end portion thereof. A spring 219,
In the preferred embodiment of the present invention,
extending between a stud 216 of the stem 214 and the
normally there is positioned in front of the yoke arm
member 191 an arm 196 for blocking the feeding move~ 60 stud 119, yieldingly retains the stop control key 33 in
an upper, unoperated, position, being overcome upon
ment of the vertical feed bail 185, such arm 196 being
the
depression of the key 33 and permitting a lower stud
illustrated in FIG. 8 as extending upwardly from a pivot
217 thereof to move downwardly a distance determined by
bolt 197 secured to a plate member 198, which extends
the slot 215 provided therein. This movement’ of the
across the lower rear end of the machine. A link 199,
by means of pivot studs 209 and 201, operably connects 65 stud 217 is suf?cient to enable it to contact and rock
the latch 297 counter-clockwise an amount which permits
the arm 196 to a bell crank 2112, which, by means of a
bolt 295, is rockably mounted adjacent the right end of
’ the lever stud 206 to be released therefrom, whereupon
- the lever 31 is immediately returned to its unoperated
the machine plate member 198. In view of such con
position under the urge of the spring 1131. Also included
struction, if the bell crank 202 is rocked counter-clock
wise about its pivot bolt 205, the arm 196 is rocked clock 70 in the present invention is a second means for unlatch
ing the lever 31 from its operated position, being associ
wise about its pivot bolt 197, thereby being removed from '
' ated with and actuated by the cycle control mechanism
in front of the yoke arm portion 191, as illustrated by
as now described.
the dash lines in FIG. 8, and permitting the record ma
Referring to FIG. 2, a link 2211, extending between
terial to be vertically spaced as above described. As
pivot
studs 221 and 222, operably connects the continuous
will be described later herein, means is provided for selec
17
3,064,883
Cycle control lever 31 with a forwardly-positioned arm
223. This arm 223 is secured to a shaft 224, herein
shown as being secured to the outermost end thereof and
on the outer side of the machine left frame plate 40. As
best seen in FIG. 5, the shaft 224 extends inwardly from
the plate 40‘ to terminate at approximately the center of
the machine, being journaled between such plate 40* and
an ear 74a turned upwardly from a machine forward
base plate 74. A second arm 225 is secured to the shaft
224, adjacent the base plate ear 74a, and, by means of
18
thereof. Referring to FIG. 2, when the lever 31 is shifted
rearwardly, as above described, the forward shaft 224 is
thereby caused to be rocked clockwise (FIG. 2) and
counter-clockwise (FIG. 9), which shaft 224, in turn,
causes the rock shaft 236 to be rocked clockwise (FIG.
9) for removing the stud 234 from the path of travel of
the cam line drive pawl 235. As best seen in FIG. 10A,
such stud 234 is rocked downwardly and away from the
drive pawl cam surface 239, enabling the drive pawl for
ward end portion 237 to engage the next forward index
a link 226, as best seen in FIG. 9, extending between 10 ing stud, when the pawl 235 is shifted forwardly during
pivot studs 227 and 228, the shaft 224 is operably inter
the ?rst half of the machine cycle, and rock that stud,
connected with an arm 229‘, which, in turn, is secured to
along with the shaft 242, clockwise, as the pawl 235‘ is
a rearwardly- and upwardly-positioned rock shaft 230.
returned home during the last half of the machine cycle.
As seen in FIG. 5, the rock shaft 230v is journaled be
15 In accordance with the speci?c illustrations of FIGS. 9
tween a pair of spaced-apart, upstanding brackets 231
and 10A, during the forward shifting of the drive pawl
and 232 ?xedly carried by the base plate 74. A second
235, its forward end portion 237 is cammed over the in
arm 233 is also secured to the rock shaft 230, herein
dexing stud 247, enabling the shoulder 238 to be yield
shown as being spaced a distance from the arm 229 to
ingly urged therebehind. Then, upon the return shifting
position an upper stud 234 thereof immediately below and 20 of the pawl 235, such shoulder 238 carries with it the
normally in the path of travel of a cam shaft drive
stud 247 and positions it at the zone formerly held by
pawl 235 (FIG. 5). The drive pawl 235, as best seen
the stud 246. Such movement of the stud 247 causes the
in FIGS. 4 and 5, extends forwardly from an arm 240‘
cam shaft 242 to be indexed 120 degrees. 'In view of the
secured to the machine main shaft 108, being pivotally
latching of the control lever 31, as above described, this
connected thereto by a stud ‘236, so that, as the shaft 25 cam-shaft-indexing operation is continued during each
198 is oscillated during each machine cycle, the pawl
235 is thereby shifted ?rst fonwardly and then returned
rearwardly, back to home.
machine cycle provided in the overall machine operation
as initiated by the lever 31.
'
Contrary to this operation, when a machine cycle is
Referring further to FIG. 5, a cam shaft 242 is like
initiated by some means other than the lever 31, as by
wise journaled between the brackets 231 and 232, being 30 the add control key 26 provided in the instant invention,
located approximately centrally of the horizontal distance
the cam shaft 242 remains stationary; that is, his not
between the shafts 224 and 230‘ and slightly upwardly
rocked by the drive pawl 235 as described above. In
of the shaft 239‘ (FIG. 4). Fixed to the cam shaft
this instance, the rock'shaft stud 234 would remain posi
242, adjacent its right end, is a drive member 243, which,
tioned, as seen in FIGS. 9 and 10, in the path of travel
when permitted to be actuated by the drive pawl 235, 35 of the drive pawl cam surface 239. 'With such position
aligned therewith and positioned thereabove as seen in
ing of the stud 234, as the drive pawl 235 is shifted for
FIG. 5, causes the cam shaft 242 to be rocked clockwise
wardly during the ?rst half of the machine cycle, its under
(FIG. 4) a predetermined distance during each machine
surface 239* soon contacts such stud 234, thereby cam
cycle. This rocking of the cam shaft 242 is best under
ming the pawl also upwardly (FIG. 10‘) and preventing
stood by looking to FIG. 9, wherein the various mem
its forward end portion 237 from engaging the stud 247.
bers secured to the cam shaft 242 are illustrated in side
Then, upon the return shifting of the pawl 235, its for
by-side relationship, and in their respective home posi
ward end portion 237 again assumes its normal, home
tions, as viewed from the right of the machine.
position, adjacent the stud 246 (FIG. 9). As seen in
Referring to FIG. 9, and also to FIGS. 10 and 10A
FIGS. 5 and 9, a roller 249, on the machine shaft 129,
45
for detail reference numerals not included in FIG. 9 for
cooperates with an upper cam surface 256‘ of the drive
the sake of clarity, the illustrated drive member 243
pawl 235, assuring a true home positioning of such pawl
comprises a pair of spaced-apart side plates 244 and 245,
when the machine is at rest. The shaft 129‘, as seen in
?rmly secured one to another by means of three inter
FIG. 5, is journaled between the machine left frame
vening studs 246, 247, and 248. These three studs, here
plate 49 and the base plate carried bracket 231, being
inafter referred to as indexing studs, are equally spaced, 50 located (FIG. 4) rearwardly and upwardly from the rock
shaft 230‘.
one from another, around the peripheries of the plates
244 and 245. As also seen in FIG. 9, the drive‘pawl
Secured to the cam shaft 242, adjacent the drive plate
235 is provided with a forward end portion 237, having
243, is a drum cam 251. This cam, as best seen in FIG. 5,
a lower, cam-like surface terminating in a downwardly~
is provided with the usual raceway, herein receiving contin—
directed shoulder 238. By means of a spring 241, 55 uously the above-mentioned roller stud 1370f the control
stretched between the pawl 235 and the base plate 74,
arm 136 and providing the means for periodically rocking
the pawl 235 is yieldingly urged counter-clockwise (FIG.
the arm 136 ?rst clockwise, for shifting the stop bars 122
4) to present its forward end portion 237 normally in
from'under their respective rows of keys 25, and then
operable association with the drive member 243. In this
counter-clockwise, for returning the shifted stop bars back
60
instance, and when the machine is at rest, the pawl end
to their home positions, underlying such rows of keys 25.
portion 237 is located immediately behind one of the
As will be described later with reference to the machine
indexing studs, such as the stud 247, with its shoulder
operation, such cam and control arm arrangement causes
238 abutting the next stud therebehind, such as the stud
the stop bars 122 to be shifted away’ from the keys 25 near
246, as seen in FIG. 9, where the cam shaft 242 is illus
the
end of the second, or non-add, cycle of ‘each machine
trated in its unrocked, or home, position. As further 65 operation, there being three ‘cycles within each operation
seen in FIG. 9, a downwardly-extending cam surface
as above described, and likewise causes such stop- bars to
239 is provided on the pawl 235, being located behind
be returned immediately under ‘the keys 25 near-‘the end
the rock shaft stud 234 when the machine is at home and
of the third, or sub-total, cycle of each operation. With
shifted substantially therepast during each machine cycle.
such arrangement, it is seen that the stop bars 122 are po~
31, the cam shaft 242 is effectively rocked one third of
anism during such cycle.
In considering the cycle control mechanism thus far 70 sitioned under their respective rows of keys 25 during the
?rst, or add, cycle of the machine operation, thereby en
described, it is seen that, when a machine operation is
tering the set-up amount into the machine totalizer mech
initiated by means of the continuous cycle control lever
'
’
'
Adjacent the cam 251, and to its left, the cam shaft 242
a revolution (120‘ degrees) during each machine cycle 75
carries three plate cams 252, 253, and 254, each of which
20
is spaced (FIG. 5) one from the other along the shaft 242,
and each of which is equally spaced (FIG. 9) one from
the other around the periphery of the cam shaft 242.
Thus, like the indexing studs 246, 247, and 248, these cams
252, 253, and 254 are positioned for operation at 120-de
gree intervals. A bracket 255, secured to the base plate
74 and at a zone rearward of the cam shaft 242, ?xedly
carries three spaced-apart switches 103a, 203a, and 303a,
aligned with and extending, respectively, under the plate
latch 49‘ from under the ear 42 of the three-armed lever
41.
Referring to FIG. 4, a non-add lever 283 is rockably
mounted on the machine cross rod 143 and has pivoted
thereto the upper end of a non-add link 284, the lower end
of which is pivoted to the above-mentioned latch plate
271. A spring 285, extending from the link 2.84 and en
gaging a lower frame plate stud, normally urges the latch
plate 271 counter-clockwise about its pivot 273, thereby
As best seen in FIG. 9, the 10 presenting a latch-retaining plate 286', operably associated
with the latch plate 271, in blocking relation with a rear
switch 103a is normally closed by thepositioning of the
wardly-extending ?ange 281 of the non~add and total lever
cam 254 when the machine is at home; that is, prior to
latch 279. As seen in FIGS. 3 and 4, a spring 287 yield
initiation of machine operation by the continuous cycle
cams 254, 253, and 252.
ingly urges the non-add and totallever latch 279 counter
control lever 31. As described earlier, such switch 103a
is included in the energizing circuit of the trip solenoid 15 clockwise about its pivot 282.
103 (FIG. 13), thereby enabling the ?rst machine cycle,
With such construction, upon the energization of the
solenoid 203, the control lever 266 is thereby rocked
which is the add cycle, of each machine operation to be
clockwise about its pivot bolt 269 (FIG. 5), in turn, and
initiated when the lever 31 is shifted rearwardly (FIG. 2).
by means of its outer cam portion 267, rocking the latch
During the second half of such add cycle, the cam shaft
242 is rocked, as above described, 120 degrees clockwise 20 plate 271 clockwise about its pivot 273 (FIG. 4). As such
latch plate 271 is rocked, its associated latch-retaining
(FIG. 9). In view of such rocking of the cam shaft 242,
the switch 1031: becomes opened as the cam 254 moves
upwardly and away therefrom, thus preventing the next
machine cycle from being initiated by the trip solenoid
103.
At the sarne'time, the cam 253 is moved down
wardly to contact and close the switch 203a, this happen
plate 286 is removed from blocking relation with the ?ange
281, thereby allowing the non-add and total lever latch
279 to be moved to a latching position under urgence of
As the latch 279 is thus moved, its for
ward arm 280 initiates a cycle of operation of the machine
25 the spring 287.
as explained earlier herein. Simultaneously therewith, the
latch plate 271 shifts the non-add link 284 upwardly to
condition the machine for a non-add operation in the
M2, being moved to the position formerly held by the
30 manner fully explained in the United States patent to
cam 253.
'
Heber C. Peters No. 1,386,021. Again, during such ma
Referring to FIG. 13, upon the closing of the switch
chine cycle, the cam shaft 242 is rocked (FIG. 9) an addi
203a, a circuit is completed for energizing a solenoid 203,
tional 120 degrees. During such rocking of the cam shaft
which, through mechanism effected thereby, causes a non
242-, its drum cam 251 is likewise rocked, causing the con
add cycle of the machine to be initiated. As seen in FIG.
.5, such solenoid 203 is herein illustrated as being secured 35 trol arm 136 to be rocked clockwise (FIG. 5), in turn,
and through the control link 141, shifting the stop bars 122
to the base plate 74, at a zone approximately central of
from their normal alignment with the digit keys 25. Also,
the machine, and having its forwardly-extending core
during such rocking of the cam shaft 242, its plate cam
member 204 operably interconnect, by means of a down
253 moves away from the closed switch 203a, permitting
wardly-extending link 265, a control lever 266 rockably
mounted on the base plate 74. A spring 268, extending 40 it to open, while its'plate cam 252 moves downwardly to
contact and close the switch 303a. Its remainingcam,
between the lever 266 and the machine rear base plate
254, is rocked to the position formerly held by the cam
73, normally urges the control lever 266 counter-clock
252; that is, in the position for closing its switch 103a
wise about its pivot bolt 269 a distance determined by a
near the end of the next rocking movement of the cam
base plate stop stud 270. When so positioned, which is
shaft 242. In view of ‘the immediate opening of the switch
the case until the solenoid 203 becomes energized, an outer
92, at the very beginning of such non-add machine cycle,
cam portion 267 of the lever 266 (FIGS. 4 and 5) is lo
cated substantially behind an inwardly-directed stud 272
the circuit to the solenoid 203 is broken, ‘and the control
lever 266 is permitted to be returned to its normal position
of the usual latch plate 271 rotatable about the machine
under urgence of the spring 268. As best seen in FIG. 4,
right vertical frame plate stud 273.
the non-add and total lever latch 279 retains the parts as
Although the general construction of the calculating
sociated therewith in their moved positions until the usual
machine type of operation control mechanism embodied
roller 288 (FIG. 3) on the full~stroke sector 107 engages
in the present invention is admirably described in United
a by-pass pawl 289 on the latch 279 soon after the begin
States Letters Patent to Harry L. Lambert No. 2,654,537,
in order to assure a thorough understanding of the pres
ning of the return stroke‘of the sector 107, and rocks the
ent machine cycle initiated by the solenoid 203, which is 55 latch 279 clockwise to move its ?ange 281 from latching
relation with the latch-retaining plate 286, thereby releas
the second, or non-add, cycle of the machine operation
ing the trip lever 82 and allowing the spring 285 to return
initiated initially by the lever 31, pertinent mechanism
the non-add link 284 and parts affected thereby to their
thereof will likewise be described herein. Referring to
normal positions.
'
FIG. 3, pivotally mounted on the main trip lever 82 is a
As seen in FIG. 13, upon the closing of the switch 303d,
bell crank 275, which has an upwardly-extending arm 60
a circuit is now completed for energizing a solenoid 303,v
276, normally urged into engagement with the upwardly
which, through mechanism actuated thereby, causes a sub
extending arm of the lever 82 by a spring 277. Thus,
total cycle of the machine to be initiated. Referring to
under normal operating conditions, the rearwardly-ex
ing near the end of the machine cycle. Of course, the
remaining cam 25-2 is also rocked along with the cam shaft
tending arm of the bell crank 275 operates as a rearward
arm of the trip lever 82 and can therefore be actuated to
rock the trip lever 82 clockwise. A stud 278 on the bell
crank 275 can be engaged by a forward extension 280
FIG. 5, such solenoid 303 is herein illustrated as being
also secured to the base plate 74, adjacent the non-add
solenoid 203, and havingrits rearwardly-extending core
member 304 pivotally connected to an arm 306 secured
to a sub-total trip shaft 305. This shaft 305 is journaled
(FIGS. 3 and 4) of the usual non-add and total lever latch
between the machine right frame plate 80 and an up
,279, pivoted on a stud 282, which extends from the right
‘plate 118 of the keyboard to depress the free end of the 70 standing bracket 307 secured to the rear base plate 73.
,rearWardly-extending arm of the bell crank 275 and rock
the trip lever 82 clockwise to initiate a machine cycle.
As seen in FIG. 3, a second arm 308 is secured to the shaft
305, on the outer side of the frame plate 80, and, by means
of a link 309, extending between pivot studs 310 and 311,
the shaft 305 is operably interconnected with a sub-total
causes the link 278 to be shifted forwardly, in turn, rock~
ing the trip lever 75 counter-clockwise to remove the trip 75 latch arm 312, rotatable ‘about an upper, right vertical
This rocking of the trip lever 82, as above described,
8,064,883
frame plate bolt' 313. A spring 314, stretched between the
latch arm 312 and the shaft 169, yieldingly urges the latch
arm 312 counterclockwise to normally present an upper
shoulder 315 thereof immediately behind a stud 317 car
ried by a sub-total trip arm 316, rockably mounted on a
frame plate stud 319. An upper end portion 318 of the
trip arm 316 is provided with gear teeth in constant mesh
with like gear teeth provided on an arm 320 secured to
Although the precise structure for actually tripping the
machine for this third or sub-total machine cycle is also
substantially like that disclosed in United States Letters
Patent No. 2,654,537, which issued to Harry L. Lambert
and to which reference may be had, a somewhat ditferent
mode of operation thereof is incorporated in the present
invention. Therefore, an added description of the perti
nent tripping mechanism is included herein to assure a
the shaft 165. By means of a strong spring 321, extend
thorough understanding of such mechanism as embodied
ing between the arm 320 and a forward frame plate stud 10 in the instant invention.
322, the shaft 165 is cocked for a clockwise movement,
Referring to FIG. 4, as the total lever 28 is rocked
being restrained from such movement in view of the nor
counter—clockwise, the upper end of a link 340‘ is thereby
mal latching of the trip arm 316 by the latch arm 312. In
shifted rearwardly and upwardly, causing the link 340 to
accordancev with such construction, upon the energiza
move upwardly and rock the usual total control bell crank
tion of the sub-total solenoid, as above described, the latch
341 counter-clockwise about its pivot 342 and against the
arm 312 is rocked clockwise as the trip shaft 305 is rocked
action of a spring 343. When such bell crank 341 is
counter-clockwise, thereby removing the shoulder 315 of
rocked, it pulls a link 344 rearwardly. This link 344 is
such latch arm 312 from behind the stud 317 and permit
pivotally connected at its forward end to an arm 345,
ting the shaft 165 to be immediately rocked clockwise
which is rockably mounted on a stud 346 provided on the
under the urge of the spring 321. In view of such gear
inside of the machine right frame plate 80. When such
teeth arrangement between the trip arm 316 and the shaft
link 344 is pulled rearwardly, a stud 347 thereon, cooperat
arm 320, the trip arm 316 is caused to be rocked counter
ing with the bifurcated lower end portion of a bell crank
clockwise about its pivot 3-19 and present its lower end
348, causes the bell crank 348 to rock about the above
portion adjacent a stud 323, extending outwardly from the
mentioned pivot stud ‘273. As the bell crank 348 is so
machine drive link 106.
rocked, a forwardly-extending ?nger thereof is moved
As seen in FIG. 4, a trip ?nger 324 is secured to the
shaft 165, being positioned adjacent the machine right
frame plate 80 and in alignment with an inwardly-directed
stud 325 carried by an arm 326 secured to the total lever
28. As also seen in FIG. 4, the stud 325 is in alignment
with the above-described right arm portion 163 of the
bail 161, rockably mounted on the shaft 165. As best
seen in FIG. 3, a second stud 327, extending outwardly
from the total lever 28, is operably associated with an
upper cam arm 329 of a record feed lever 328 rockably
mounted on the outer side of the machine right frame
plate 80 by means of a bolt 330. A turned-over end por
tion 331 of a rearwardly-extending major leg of the lever
328 is operably interconnected, by means of a link 333
extending between pivot studs 334 and 335, with the
above-mentioned bell‘crank 202 (FIG. 8). A spring 336,
extending between the lever 328 and an upper frame stud
337, normally urges such record feed lever 328 counter
clockwise for presenting the record feed blocking arm 196
from above to below the ?ange 281 of the non-add and
total lever latch 279. This movement of the bell crank
348 will also cause a ‘stud thereon (illustrated in FIG. 4
but not designated by a speci?c reference numeral) to
engage the latch-retaining plate 236 and rock that plate
also about the stud 273 to remove its ?nger portion from
blocking relation with the flange 281, thereby allowing
the spring 287 to rock the latch 279 counter-clockwise
about its pivot ‘282. The latch 279, when thus rocked,
moves the flange 281 over the ?nger of the bell crank 348,
thereby retaining the bell crank 348 and the total lever 28
in their moved positions. Also, in the movement of the
non-add and total lever latch 279 to its latched position,
its forward extension 28%) engages the stud 278 and rocks
the machine main trip lever 82 (FIG. 3) clockwise, thus
initiating a cycle of operation of the machine in the man
ner explained earlier herein in relation to the second or
non-add machine cycle included in the machine operation.
At the very beginning of such sub-total cycle, the switch
(FIGS. 7 and 8) in the path of travel of the yoke 189.
45 92 is again opened to deenergize the solenoid 303. Upon
With this construction, it is apparent that, upon the en
this happening, the spring 314 attempts to return the shaft
ergization of the solenoid 303 and the resultant clockwise
305 and its associated members to their normal positions,
rocking of the shaft 165 thereby, the trip ?nger 324 will
cause the total lever 28 to be rocked counter-clockwise
about its pivot 169. This rocking of the lever 28, as set
out in United States Letters Patent No. 1,854,875, to Nel~
son White, conditionsthe machine mechanism in the usual
manner for causing a sub-total operation to be performed.
As seen’ in FIGS. 4 and 7, such rocking of the lever 28, by
being restrained from so doing in view of the upper, rear
surface of the latch 312 now abutting the stud 317 as
shifted by the spring 321.
As above described, the usual full-stroke sector 187 is
oscillated forwardly and then rearwardly during each ma
chine cycle. Soon after the beginning of the forward
stroke of the sector 187, the stud 323 on the link 106 en
means of the aligned stud 325 and bail arm 163, also 55 gages the lower end of the trip arm 316 and rocks that arm
causes the bail 161 to be rocked clockwise, thereby rock
clockwise a distance su?icient to enable the spring 314 to
ing the print control bail 176 from under the interponents
rock the arm 312 counter-clockwise (FIG. 3) for again
153 and enabling the printing operation to be performed
during such sub-total machine operation. In addition, the
lever stud 327 causes the record feed lever 328 to be
rocked clockwise an amount suf?cient to remove its as
sociated ‘blocking arm 196 from in front of the yoke 189',
thereby enabling the record material to be spaced in the
usual manner near the end of the machine cycle. Thus,
such r'ockin'g'of the total lever 28' conditions the machine
mechanism for a-sub-total operation to be performed when
the machine is cycled, enables the amount accumulated
latching the arm 316 in its normal position—that is, with
the stud 317 located behind the shoulder 315, as illustrated
in FIG. 3. This rocking and latching of the arm 316
again cocks the shaft 165 as the spring 321 is tensioned,
thereby returning the trip ?nger 324 (FIG. 4) back to its
normal position. Again, the non-add and total lever latch
279 retains the parts associated therewith in their moved
positions until the roller 288 (FIG. 3) engages the by-pass
pawl 289, soon after the beginning of the return stroke
of the sector 107, and rocks the latch ‘279 clockwise (FIG.
4) to move its ?ange 281 out of latching relation with
material during such sub-total operation, and enables the
the bell crank 348, thereby allowing the spring 343 to re
record ‘material to be spaced at the end of such sub-total 70 turn the total lever 28 and parts connected thereto to their
machineoperation. In additiomthe initial rocking of the
normal positions. Upon such return to home or normal
total lever 28 causes the machine cycle to be initiated
position
of the lever 28, the bail 161, with its associated
that is, causes the trip latch 49 (FIG. 12) to be rocked
mechanism, is returned to its normal, print-blocking posi
from under theear 42 of the three-armed lever 41 as above
tion under urge of the spring 164 (FIG. 7). Simultane
' described.
75 ously therewith, the record feed lever 328, with its asso
in vthe totalizer mechanism to be printed on the record
3,064,883
24
23
ciated mechanism,- is returned to its normal, record-feed
blocking position under urge of the spring 336 (FIG. 3).
Also, during the second half of such sub-total machine
cycle, the cam shaft 242 is again rocked 120‘ degrees by
the drive pawl 235. This rocking of the cam shaft 242,
along with prior rocking movements thereof during the
above-mentioned add and non-add machine cycles, pre
tion with the gear 295, rotatably carried by the rock
shaft 230.
' In accordance with such construction, the control knob
29 may be manually set for causing a selected number of
the above-described threeacycle machine operations to be
performed. Upon the setting of such knob 29 to the de
sired ntnnber of operations, from one to sixty as indicated
thereon, the cam 262 is likewise set in accordance there—
with. This setting of the cam 262, as best seen in FIG. 11,
normally closed condition, while the switches 263a and 10 removes its abutment 263 from its normal alignment with
the release stud 212 and positions it a distance therefrom
‘303a are maintained in open conditions.
corresponding to the movement of the control knob 29.
In order to assure an accurate and positive positioning
As described earlier in the speci?cation, when the machine
of the cam shaft 242 in this instance-that is, after it has
sents a complete revolution thereof, whereupon, as illus
trated in FIG. 9, the switch 163a is again returned to its
been rocked 120 degrees by the drive pawl 235 during the
is operated by the rearward shifting of the lever 31, such
above-described sub-total machine cycle-as well as after
the ?rst and second machine cycles of the machine opera
lever 31 becomes latched in its shifted position as the
switch latch shoulder 209 falls behind the lower stud 206
tion, during each of which it is likewise rocked by the
drive pawl 235, an aligning mechanism is included in the
basic structure of the cycle control mechanism of the in
thereof. Upon such latching of the lever 31, the switch
stant invention.
94 is retained in a closed condition to enable, as above
described, the add, the non-add, and the sub-total ma
As seen in FIG. 5, a detent wheel 25-6, 20 chine cycles to be performed, one after another. ' Near
the end of such sub-total cycle, the gear tooth 258, which
has been rocked 360 degrees along with the cam shaft 242,
contacts and rocks the large gear 295 a distance equal to
plate bracket 232, is secured to the cam shaft 242. This
approximately one tooth thereof. Upon such rocking of
wheel 256, as seen in FIG. 9, is provided with three pe
ripheral notches, like the notch 257, equally spaced one 25 the gear ‘295, its associated gear 296 likewise rocks the
gear 261 to index the control knob 29 that distance to
from another and in radial alignment with both the switch
ward its home, or “0” position. Such indexing of the
actuating plate cams 252, 253, and 254 and the cam-shaft
control knob 29 is best seen in FIG. 2, where the cam
indexing studs 246, 247, and 248. Operably associated
abutment 263 is thereby rocked counter-clockwise the one
with such wheel 256 is a horizontally-disposed stud 291,
carried by a forwardly and upwardly extending arm of a 30 tooth distance toward the latch release stud 212. This
operation is continued until the control knob 29 is indexed
detent lever 290, which, as best seen in FIG. 9, is rockably
back to its “0” position, at which time the cam abutment
mounted on the rock shaft 230. By means of a spring
263‘ contacts the release stud 212 and rocks the switch
292, stretched between the lever 290 and a rearwardly
latch 297 counter~clockwise about its pivot 211 a distance
positioned base plate stud 293, the lever 290 is yieldingly
su?icient to release the lever 31, which may then be re
urged counter-clockwise to present its stud 291 in constant
herein illustrated as being positioned adjacent the left end
of the cam shaft 242 and on the outer side of the base
abutment with the periphery of the detent wheel 256,
thereby assuring the desired positioning of the cam shaft
242 in each instance as a detent wheel notch 257 becomes
turned to its unoperated position under urge of the spring
Upon this happening, the switch 94 is permitted to
open and prevent a further machine operation from. being
- 191.
initiated.
aligned with and receives therein the stud 291.
Although the cycle control structure thus far described 40
Machine Operation
has been related to a single, three-cycle machine operation
In
view
of
the
fact
that a somewhat detailed mode of
as initiated by the continuous cycle control lever 31, being
operation is included with the speci?c description of the
done so herein for the sake of clarity, mechanism is asso
various mechanisms employed in the instant invention,
ciated with the above-mentioned control knob 29 permit
the following discussion isrincluded herein as a general,
ting a selected number of such multiple-cycle machine op
overall summary of the machine operation. In essence,
erations to be performed, one after another, with the ma~
and without going into any great extent of detail, it may
chine automatically coming to rest after the last cycle of
be stated generally that the present invention enables an
the last machine operation has been completed. Referring
to FIGS. 5 and 9, a single gear tooth 258 is secured to the
detent wheel 2%, being spaced at distance to the left
item amount to be repeatedly entered into a calculating
machine totalizer mechanism with intervening totalizer
thereof and extending radially outwardly from the outer
reading and printing operations being performed, all
most end of the cam shaft 242.
without affecting, in any manner, the item amount as ini
tially set up on the machine keyboard.
This tooth 258, as best
seen in FIG. 9, is operably associated with a large gear
295, rotatably carried by the rock shaft 230‘. A small
gear 296, secured to the gear 295 and spaced a distance -
to the left thereof, is maintained in constant mesh with a
third gear 261, secured to the innermost end of a short
To effectively illustrate the general operation of such a
machine, it is herein assumed, as an example of a typical
~tmachine operation, that an amount of 125 is initially set
up on the digit keys 25 (FIG. 1) and the control knob 29
is manually rocked from its “0” position and set to its
shaft 260‘, rotatably carried by the machine left vertical
number 4 position. The continuous cycle control lever
frame plate 40. This shaft 2641, hereinafter referred to as
a control shaft, is axially aligned with the cam shaft 242 60 31 may then be actuated for closing the switch 94, which,
along with the current supply line switch 92, which is
and is selectively rotated by means of the control knob 29,
closed when the machine is at home, completes the neces
which, as seen in FIG. 5, is secured to the outermost end
sary circuits for initiating one machine cycle after another
thereof. Adjacent the inner surface of the machine frame
until the overall operation is completed.
plate 40, at a spaced distance to the left of the gear 261,
Referring to FIG. 13, upon the closing of the switch 94,
the control shaft 260 is provided with a ?xed cam 262,
a circuit is immediately completed through the normally
having an outwardly-extending abutment or protuberance
closed cam shaft switch 10311 for energizing the add sole-,
263, radially aligned with the “0” position as indicated on
noid 103. This solenoid 103, when energized, causes
the control knob 29. Also aligned with the “0” position
the ?rst cycle of the ?rst machine operation to be ini
on the control knob 29 is a latch release stud 212 (FIGS.
tiated, which is an add machine cycle wherein the illus
2 and 5) extending inwardly from the minor length 210
trative amount of 125 is added into the totalizer mecha
of the switch latch 207 and lying normally in the path of
nism of the machine. During such cycle, the machine
travel of the cam abutment 263. As seen in FIG. 11, an
~stop bars 122 are stopped, in the usual manner, by the
aligning pawl 298 is yieldingly urged counter-clockwise,
depressed digit keys representing the amount to be entered
by means of a spring 300, about the shaft 224 to position
a rearward, toothed end 299 thereof in constant associa 7 5 into the machine. In view of the normal positioning of
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