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Патент USA US3045809

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July 24, 1962
R. E. SEYMOUR ETAL
3,045,799
KEYBOARD INTERLOCK CONTROL MEANS
Filed Aug. 25, 1960
2 Sheets-Sheet 1
1,43
FIG 3
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July' 24, 1962
R. E. SEYMOUR ETAL
3,045,799
KEYBOARD INTERLOCK CONTROL MEANS
Filed Aug. 25, 1960
FIG. 9 ,,
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INVENTORS. ’
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Patented July 24, 1962
1
2
3,045,799
Raymond E. Seymour, Norwalk, and Edward T. Haraske,
release a slide being held in the effective position upon
the shifting of another slide into the effective position.
‘It is, therefore, an object of this invention to increase
the character capacity of a machine of the class described
KEYBOARD INTERLOCK CONTROL MEANS
Easton, C0nn., assignors to Sperry Rand Corporation,
New York, N.Y., a corporation of Delaware
Filed Aug. 25, 1960, Ser. No. 51,980
9 Claims. (Cl. 197-107)
This invention relates generally to keyboard controlled
without increasing the number of keys in the keyboard.
It is a further object of this invention to increase the
character capacity of a machine of the character descirbed,
having selective keyboard interlock control means, by
utilizing the case shift mechanism of the machine.
data recording machines such as a typewriter, bookkeeper 10
-It is a further object of the invention to permit the use
or the like and'has more particular reference to keyboard
use of dual character keys in a machine of this class pro
interlock mechanism associated with the keyboard of such
vided with the keyboard interlock control mechanism.
machines, together with a control therefor, so as to selec
It is a still further object of this invention to permit
tively disable certain keys or group of keys at different
mechanical storage of a program or format control signal
15 in a selective keyboard interlock control mechanism.
stages of the machine’s operation.
The invention is shown and disclosed herein in an em
Further objects of the invention together with features
bodiment adapted for use with keyboard interlock
contributing thereto and advantages resulting therefrom
mechanism of the general type disclosed in the co-pend
ing application of Raymond E. Seymour, S.N. 21,687,
will be apparent from the following description when
read in conjunction with the drawings wherein:
?led April 12, 1960, and entitled Selective Interlock 20 FIG. 1 is a perspective view from the front of the ma
Mechanism.
chine showing two separate keyboard lockup slides and
In the machine of the aforesaid co-pending application,
related mechanism.
I, the selective interlock mechanism includes a group of
‘FIG. 2 is a sectional view along the lines 2-2. of FIG.
slidable members, each associated with a respective group
1 showing the mechanical storage member in association
25
of keys, for moving into and out of effective blocking
with the aforesaid lockup slides.
relation to their respective group of keys at different stages
FIG. 3 is a detail view showing a numerical and alpha~
of a formatted or program controlled typing operation
betic type head.
as determined by the travel of the machine carriage into
FIG. 4 is a perspective view from the rear of the ma
predetermined carriage escapement positions. In the ma
chine showing, fragmentarily, mechanism operated by the
chine of said co-pending application each type bar is de 30 case shift key and its relation to the keyboard interlock
signed and operable for producing on the hard copy only
means.
a single character, the numeric type bars carrying only
FIG. 5 is a side elevation ‘of the lockup slide employed
their respective numeric type face and the alphabetic type
in the instant embodiment for the numerical keys, the
bars carrying only, preferably, their respective capital
slide being shown in its actuated or effective lockup posi
letter type face. Accordingly, the character capacity of 35 tion.
the machine is limited by and corresponds to the number
of keys in the-keyboard.
It has been found desirable and useful to increase the
character capacity of such machines without departing
from the standard keyboard or increasing the number 40
of keys therein. The present invention increases the data
or character capacity of the machine by making provision
for extra or additional characters associated with a par
ticular group of keys and effective when the machine is
in an upper case condition. In the disclosed embodiment
of the invention the extra or additional characters com
prise punctuation marks and symbols and are carried
by the numeric type bars of the machine although such
FIG. 6 is a side elevation of the slide employed in the
instant embodiment for locking up alphabetic keys, the
slide being shown in its actuated or effective lockup posi
tion.
FIG. 7 illustrates the mechanism of FIG. 5 as affected
by a case shift operation.
FIG. 8 illustrates the mechanism of FIG. 5 when re
stored to its normal ineffective position by release of the
mechanical storage member.
FIG. 9 is a partial layout of the keyboard of the ma
chine illustrating the use of the numeral keys for dual
character typing.
In FIG. 9 there is illustrated a typical keyboard lay
extra characters are of an alphabetical nature so as to be
out of the machine showing the use of the numeral keys
called for in an alphabetical area or ?eld of the line 50 for dual character typing. Hereinafter in this speci?ca
format being programmed.
tion -a “dual character” key will be used in the sense of
According to the present invention, since the extra
being capable of achieving two distinct type impressions,
characters are intended to be usable or typed in an alpha
betic area or ?eld of the hard copy, when the numeric
one in the upper case and the other in the lower case.
typing of the additional characters in a given area or
lower case position on the type head or the type head may
The alphabetic keys 12, in the instant embodiment of
keys might otherwise be locked up, means are provided 55 the invention, are not dual character keys, the type bars
to disable the numeric key lockup mechanism when the
31, see FIG. 3, associated with these keys carrying, prefer
machine is in upper case condition to thereby permit
ably, only capital type which may be in both upper and
?eld of the hard copy in which typing of numerals would
carry the type only in the lower case position with the
60
otherwise be prevented.
upper case position blank. The keyboard also contains
‘In the machine of the ‘co-pending application afore~
the usual shift key 13 which is operable in the usual man
mentioned, the several lockup slides ‘were shifted by the
ner, hereinafter more fully described, to ‘cause a shift
actuators and held in the shifted position by continued
ing of the type bar basket so as to permit distinction to
or repetitive energization of the actuators until the
be made between the typing resulting from operation of
65
format called for release of the slide, whereupon the
the dual character keys in the upper or lower case posi
actuator could be deenergized. One feature of the instant
tion, respectively.
invention is the provision of a mechanical storage means,
The case shift mechanism is shown in FIG. 4 and will
shown in the form of a latch, which retains the lockup
be brie?y described herein, said mechanism also being
slides in their effective positions and avoids the necessity
disclosed and described in the co-pending application of
of holding or repeatedly energizing the respective actu 70 R. E. Coleman and E. G. Israelson S.N. 41,854, ?led
ators. Said storage member operates to automatically
July 11, 1960, and entitled Typing Impression Control for
3,045,799
4
3
Typewriters.
Operation of the case shift key 13 rocks
key lever 14 the upright arm of which is connected by a
pull _rod 15 to a clutch control bell crank 16 pivoted to a
portion 17 of the frame of the machine. Bell crank 16 is
connected by link 18 to a lever 19 also pivoted on the
frame portion 17. Link 18 establishes a parallel linkage
between bell crank 16 and link 19, the rearward arms
slotted so as to coact with the armature 45 of its asso
ciated electromagnetic actuator 44. A spring 49 stretched
between member 46 and the slide 42 causes the slide to
yieldably follow the movement of the auxiliary member
46, said spring 49 being stronger than spring 51 which
urges the slide to the restored ineffective position.
PEG. 1 shows both slides 41, 42 in their restored or in
effective position and the machine in the lower case
of said levers, 16a and 1%, respectively, being bent over
condition wherein the slide release bell crank 34 is in its
to form a tripping ear cooperating with a clutch dog 21
most counterclockwise rotated position and lying in the
carried by an eccentric cam 22. The eccentric is loosely
right hand portion of the cut out 52 formed in the left
mounted or journalled on a power driven shaft 23 and
hand end of the slide. If the actuator armature 45 for
lies adjacent a clutch ratchet 24 secured to the shaft.
the numeric slide 42 is now operated the auxiliary mem
A spring 25 stretched between the dog and the eccentric
ber 46 is shifted to the right carrying with it the slide
urges the dog in a direction to engage one of a plurality
of teeth formed on the ratchet 24. The parts are shown 15 42 since spring 49 is heavier or stronger than spring 51.
When the auxiliary link member 46 is thus shifted a stor
in FIG. 4 in the lower case position, where it is seen that
age member in the form of a latch plate 53 is brought
ear 16a has engaged a shoulder of the dog 21 to disen
into operation, said plate being pivotally mounted at 54
gage the clutch and to retain the eccentric in the lower
to the frame of the machine and yieldably tensioned in
case condition. Upon depression of the shift key 13 the
parallel linkage is rocked in a clockwise direction which 20 a counterclockwise direction by a spring 55. The latch
plate 53 may be associated with all the slides of the selec
releases the dog 21 permitting it to engage the ratchet
and rotate one half a revolution where it is now engaged
tive interlock unit, the latching edge of said plate co
by the ear 19a to disengage it and to hold the eccentric
acting with a lockup tooth 56 formed on the arm of aux
iliary link member 46 and also with a lockup tooth 57
strap 26 is secured by connecting rod 27 and bracket 25 formed in a cutaway portion of slide 41 and all other
slides which may be included in the interlock unit.
member 28 to the frame of the type bar basket 29
When the slide 42 is shifted by its electromagnetic ac
mounted in the usual manner for vertical shifting move
tuator to its lockup position the lockup tooth 56 bears
ment so as to shift the pivot for the type bars 31 into the
against the locking edge of latch plate 53 to cam the latch
respective upper or lower case position. In accordance
with the present invention, means are provided to control 30 plate in a clockwise direction thereby releasing any other
slide which may at that time have been locked up by
the selective keyboard interlock mechanism in accord
the latch plate 53. When the slide reaches the fully
ance with the case shift condition of the machine, said
effective lockup position, the latch plate 53 restores to
means including a follower lever 32 pivoted at 33 to the
effective latching position behind the lockup tooth 56
frame of the machine and engageable with the eccentric
strap 26 so as to rock in a clockwise direction when the 35 so as to hold the slide in the lockup position until auto
matically released by activation of slide 41 or by sepa
strap 26 moves to its upper case position i.e., the posi
rate actuator means associated with the latch plate 53.
tion shown in broken lines in FIG. 4. Tied to the lower
in the upper case condition.
An eccentric follower or
Said separate actuator means, as best seen in FIG. 4, in
arm of follower 32 is a pull rod 36 which is also con
cludes an electromagnetic actuator 58 mounted on the
nected to an interlock release bell crank 34 pivotally
mounted by screw 35 on the frame of the machine. The 40 frame of the machine, the armature 59 of which is con
nected by link 61 to an arm 62 formed off the latch
function of the interlock release member 34 will be more
interlock mechanism, although it should be understood
plate 53. Spring 55 stretched between the arm 62 and the
machine frame urges the latch plate into the effective
latching position when the actuator 58 is deenergized.
The actuator 58 is energized whenever it is desired that
that more slides could be provided depending upon the
number of lockup functions desired. As described in the
stored to the ineffective positions under the in?uence of
fully described hereinafter.
FIG. 1 illustrates, in an exploded view, two of the
interlock slides 41, 42 which may be be included in an
aforesaid co-pending application S.N. 21,687 each of the
slides is formed with upstanding projections upon which
all the slides of the interlock unit be released or re
their respective springs 51.
When the slide 42 has been moved into effective lock
are mounted tightly wound springs 43 in positions to un 50 up position with the auxiliary link member 46 locked
up by latch plate 53, all of the numeric keys of the ma
derlie and lockup a selected group of keys ‘11, 12 when
chine will be locked up as long as the machine remains
the slide is actuated or shifted to its effective lockup posi
in lower case condition. However, if the operator wishes
tion by actuators responding to movement of the car
to type, at this time, the upper case character of the
riage into predetermined carriage escapement positions.
In the aforesaid co~pending application the actuators are 55 dual character or numeric keys, depression of the case
shift key, through mechanism heretofore described, oper
shown mounted to the rear of the slides whereas in the
ates to rock the slide release arm 34 in a clockwise di
instant application the actuators 44, of which one is
rection to pull the slide 42 into the ineffective unlocking
shown in FIG. 4, are mounted in front of the slides with
position against tension of spring 49 even though the
the actuator \armatures 45 extending rearwardly to shift
the slides to their effective position in the described man 60 auxiliary link member 46 is still locked up by latch plate
53. Accordingly, as long as the machine remains in the
ner. In the instant embodiment of the invention, the
upper case condition the operator may type the upper
lockup slide 41 is ?tted with springs 43 at positions to
case characters on the dual character keys, and as soon
lock up the alphabetic keys 12 of the machine and the
as the machine is returned to the lower case condition
slide 42 is ?tted with springs 43 in position to lock up
only the numerical keys 11 of the machine. Except for 65 the arm 34 allows the slide to return under in?uence of
spring 49 to the lockup position which, it will be noted,
the mechanical storage feature, to be hereinafter de
is accomplished without rocking latch plate 53 or releas
scribed, slide 41 is similar to and functions in the same
ing any other slide which may also be locked up by said
manner as the slides disclosed in the aforesaid co-pend
latch plate.
ing application. However, slide 42, in order to allow for
FIG. 5 illustrates the position of the numeric inter
control by the case shift mechanism of the machine, car 70
lock slide 42 and associated parts when in the effective
ries an auxiliary member in the form of a T shaped link
lockup position with the machine in lower case condi
46 the horizontal arms of which are formed ‘with slots 4-7
tion. -It will be noted that a spring 43 underlies each
slide ?tted to pins 43 secured to the slide to form the
of the numeral or dual character keys 11 so as to pre
usual or conventional pin and slot connection. The ver
tical leg or trunk of the auxiliary member 46 is also 75 vent typing by these keys when the machine is in a
3,045,799
6
lower case condition. FIG. 7 shows the same slide
after the machine has been placed in upper case condi
shift condition of the machine, means for selectively
locking up said separate groups of keys, case shift means
operable for selecting one or the other category of data
associated with said one group of keys, and means oper
ated by said case shift means for controlling the lockup
means for said one group of keys to prevent the recording
of data of a numeric nature by said one group of keys
when the machine is in one case shift condition and to
tion with the ‘auxiliary link member 46, however, still
locked by the latch plate 53. It will be noted that the
release arm 34 has been swung to the left to restore the
slide 42 to its ineffective unlocking position against ten
sion of spring 49 so as to permit operation of the nu
meral or dual character keys of the machine.
FIG. 6 illustrates the alphabetic lockup slide 41 in
permit the recording of data of an alphabetic nature by
the effective locking position wherein it will be seen that 10 said one group of said keys when the machine is in another
all of the alphabetic keys 12 of the machine are effec
case shift condition.
tively ‘blocked to prevent operation thereof by the oper
4. In a keyboard controlled data recording machine of
ator. FIG. 8 illustrates the release of the slide 42,
the class described having separate groups of keys for
and any other slide which may have concurrently been
recording data belonging in separate data categories, the
held effective, as a result of operation of the interlock 15 keys of at least one of said groups being operable for
clear actuator 58 which disables the latch plate 53 in
recording data in more than one data category, means
the manner heretofore described. Energization of the in
for selectively locking up said separate groups of keys,
terlock clear actuator frees all the slides thereby per
said lockup means including individual slidable members
mitting the entire keyboard to be utilized by the operator.
associated with respective groups of keys and shiftable
Although the invention has been shown ‘and described 20 between ineffective and effective lockup positions, case
herein in ‘an embodiment wherein the dual character
shift means operable for selecting one or the other cate
keys comprise the numeric keys, it should be understood
that the alphabetic keys could be similarly utilized with
the same results. Also, although the invention has been
shown and described in connection with a machine hav
ing power-driven case shift mechanism, it should be un
gory of data associated with said one group of keys, and
means operated by said case shift means for controlling
the slidable member for said one group of keys to release
25 said member from the effective lockup position when the
derstood that the invention is equally well adaptable
for machines having other forms of case shift mech
anism.
machine is in a predetermined case shift condition.
5. The invention according to claim 4- wherein said
slidable member includes an auxiliary element actuable
for shifting the slidable member between ineffective and
While there has been shown and described what is 30 effective lockup positions, said auxiliary element being
considered to be a preferred embodiment of the invention,
mounted for yieldable movement relative to the slidable
it is obvious that many changes in form could be made
member to permit the slidable member to restore inde
without departing from the spirit of the invention, and
it is intended, therefore, that the invention be not limited
pendently of the position of the auxiliary element.
6. The invention according to claim 5 including me
to the exact form shown and described nor to anything 35 chanical latching means for retaining the said auxiliary
less than the whole of the invention as herein‘before set
element in an actuated position.
forth and as hereinafter claimed:
7. In apparatus of the class described having a plu~
What is claimed as new and desired to be secured by
rality of control members arranged in parallel spaced
Letters Patent is:
apart relation to each other and each movable in the
1. In a keyboard controlled data recording machine of 40 same direction from an inoperative to operative position
the class described having separate groups of keys for
within its respective plane, means for locking up selected
recording data belonging in separate data categories, the
keys of at least one of said groups being operable for
ones of said control members, said means including a
lockup member for each of a plurality of selected groups
recording data in more than one data category, means for
of control members and longitudinally disposed adjacent
selectively locking up said separate groups of keys, case 45 to and along a line intercepting the plane of each of said
shaft means operable for selecting one or the other cate
control members, each said lockup member being shift
gory of data associated with said one group of keys, and
able longitudinally into and out of lockup position, inter
means operated ‘by said case shift means for controlling
ponent means mounted on each said lockup member and
the lockup means for said one group of keys to permit
positionable in the plane of selected control members
50
recording by said one group of keys of data in only one
by the shifting of said lockup member into lockup posi
data category.
tion to limit the operative movement of the selected con
2. In a keyboard controlled data recording machine of
trol members, and mechanical storage means engageable
the class described having separate groups of keys for
with each said lockup member to retain the lockup mem
recording data belonging in separate data ‘categories, re
ber in the eifective lockup position.
spectively, one of said groups comprising dual character 55 8. The invention according to claim 7 wherein said
keys operable for recording data in more than one data
storage means comprises latching means mounted for
category, means for selectively locking up said separate
yieldable engagement with a lockup projection formed on
groups of keys, case shift means operable for selecting one
each of said lockup members, said latching means being
or the other category of data associated with said dual
moved to ineffective latching position upon the shifting
60
character keys, and means operated by said case shift
of one of said lockup members from ineffective to effective
means for controlling the lockup means for said dual char
lockup position.
acter keys to permit recording by said dual character keys
9. The invention according to claim 7 including actu
of data in only one data category.
ator means operable for rendering said storage means in
3. In a keyboard controlled data recording machine of
effective.
the class described having separate groups of keys for 65
recording data belonging in separate data categories, one
of said categories being data of alphabetical nature the
other category being data of a numerical nature, the keys
of at least one of said groups being operable for record
ing data in one category in one case shift condition of the
machine and data in another category in another case
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,769,834
2,320,637
2,506,703
Harding ______________ __ July 1, 1930
Modigliani ______ __. ____ __ June 1, 1943
Chisholm _____________ __ May 9, 1950
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