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Патент USA US3053454

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Sept. 11, 1962
Filed Dec. 3, 1957
'7 Sheets-Sheet 1
Sept. 11}, 1962ARRANGEMENTS
7 Sheets-Sheet 2
Filed Dec. 3, 1957
Sept. 11, 1962ARRANGEMENTS
7 Sheets-Sheet 3
Filed Dec. 3, 1957
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Sept. 11, 1962
Filed Dec. 3, 1957
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Sept. 11, 1962
7 Sheets-Sheet 5
Filed Dec. 5, 1957
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Filed Dec. 3, 1957
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Sept. 11, 1962
Filed Dec. 5, 1957
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nited States Patent rice‘
Patented Sept. 11; 19§Z
Account No. 3435
Date December 17, 1956
Kurt Heise, Harnbnrg-Billstedt, Germany, assignor, by
mesne assignments, to Smith-Corona Marchant Inc.
Filed Dec. 3, 1957, Ser. No. 700,348
Claims priority, appliication Germany Dee. 2t}, 1956
8 Claims. ((Il. 235—60.12)
or extension, is automatically type out. The typing of
the extension re-enters the extension into the calculator
where it may be transferred to an accumulator, or totaliz
ing register, or it may be used as the ?rst factor of a
succeeding chain extension.
The machine may be preset to print, or read out, the -
product with any given number of fractional decimal
digits, and in those instances where the sum of the frac
tional digits in the multiplier and multiplicand is greater
156. 55s
19. 56
Stock No. 24/454
188. 25
40 yd.
35 yd.
12 yd.
Stock N o.
1. 25
During the typing of an invoice, for example, the de
pression of the type keys causes the printing of prices
and quantities in two respective columns in the invoice 20
and enters the corresponding printed values into the calcu
lator as two respective factors of a multiplylng operation.
The multiplying operation is automatically initiated upon
completion of typing the price and quantity, and while
the product is being generated by the calculator, descrip 25 001. (I)
tive matter concerning the item ordered may be entered
in a third column of the invoice. The typewriter carriage
is then tabulated to a fourth column where the product,
The invention concerns a mechanism for transmitting
numeral values from a typewriter to a calculator, and
vice versa, and more particularly concerns the provision
of control mechanisms whereby a typewriter and a calcu
lator are combined to form an invoicing machine.
$ 51. 92
77. 81
26. 82
Stock No.
$136. 993
131. 410
52. 50
57. 30
429. 455
107. 36
322,09s '
48. 0O
33. 25
15. O0
96. 25s
19. 25
Gash discount
If one wishes to write a text with the typewriter, for
example, the address on the calculation form, or the
account number as well as the date, the typewriter is
disconnected from the calculator by means of a switch
1 (FIG. 5B). When the heading of the invoice has been
written, namely the part of the information not requir
ing calculation, the calculator is again connected to the
typewriter by the action of the switch 1.
The typewriter is tabulated to column I of the invoice
form by means not shown, where the value 15.50 is to‘
be entered in column I. Now, the numbers are typed dur
ing which operation a respective contact 2 (FIG. 5A)
is closed by depression of a corresponding type lever,
dropped during readout. This is accomplished by pre
which contact closes the circuit for a respective one of
setting a selected one of a plurality of product register
ten electromagnets 3 (FIG. 1B).
tabulating keys so that the decimal point of the product is
The electromagnets each operate through an associated
properly aligned with the decimal point of the readout
linkage 3a, 3b and 4 to rock a pin setting member 4a
mechanism. The invention is described as follows with 45 downwardly whereupon a depending portion of member
reference to the drawings in which:
4a depresses a corresponding pin 5a. Pins 5a are
than the preset number, the excess fractional digits are
FIGS. 1A and 1B comprise a section through the calcu
lator of the machine combination;
FIG. 2 comprises a view of the calculator as seen from
the right side;
FIG. 3 is the calculator viewed from the left side;
MG. 4 is an arrangement of the operation control
FIGS. 5A and 5B comprise a schematic wiring diagram
of the combined typewriter and calculator.
FIG. 6 is a schematic illustration of the typewriter car
riage and associated switch closing lugs as seen from the
back of the carriage.
mounted in the usual manner in a pin carriage 5 which
is shifted in an ascending direction relative to both mem
bers 4a and a ?xed pin carriage 6, such shifting being,
one ordinal increment for each ordinal value entered in
the pin carriage 5. In the example mentioned above,
the value 15.50 is typed in the ?rst column of the in
voice. After typing the last selected number, the “0,”
a contact 10 (FIG. 5B) is closed through escapment
of the ‘typewriter, to wit, through the medium of a type
writer carriage lug 300 (FIG. 6). In this manner a circuitv
is closed for initiating a machine operation by energizing a
magnet 11 (FIG. 3) which attracts its armature 12. By
this operation a lever 14 is rocked counterclockwise so
Assume that a calculation is carried out as represented 60 that the lever 14 is pulled off of a pin 15. At such time
in the following example of an invoice:
the lever 14, which is pivotally connected to a lever 17,
is pulled down by a spring 16, which spring is fastened
the mechanism ‘for initiating the single cycle rotation of
on the lever 17.
shaft 207 to its initial position.
Contact levers 29 are arranged on the racks 22, which
levers glide over a contact plate 31 supplied with con
At such time the lever 17 is rocked
clockwise about the associated pivot 18 and the lever
closes a contact 20 by means of the associated pin 19‘.
Due to rotation of the lever 17, the shaft 18 is simul
taneously turned clockwise and through this action, an
tact bars 30, and these contact levers 29 are set to values
corresponding to the value setting of their respective
adjustable multiplier factor storage device A (FIG. IE)
on shaft 18 is rotated clockwise to the extent that an arm
Thus, the entry of the multiplier factor is completed.
21 of the rack 22 lies in the plane of movement of a
The letters “yd” are then typed in column I of the
pin 23. The rotation of the adjusting storage device A 10 example without the calculator being in any way in
moves a pivot 24 of a bail 25 clockwise. Meanwhile,
fluenced by this operation.
the downward movement of a pin 34 (FIG. 3) permits
In order to write the number 3.35, the price per yard,
the integral levers 33 and 32 to rock clockwise. In
the typewriter carriage is tabulated to the particular order
turn, the lever 32 (FIG. 1B) permits a bail 25 to rock
of the column II which corresponds to the location of the
counterclockwise out of engagement with the rack 22. 15 highest signi?cant digit. The typing of the value as well
At such time, all of the racks 22 return to their initial
zero positions under the urgency of the associated springs
22a, provided they were previously adjusted to a nu
meral value. The above-mentioned closing of contacts
20 (FIG. 5B) energizes a solenoid 206, which, in turn,
initiates the operation of a well-known type of single
clutch (not shown). The clutch drives the shaft 207
(FIG. 3) through 360° of rotation during which a cam
208 on shaft 207 acts through a linkage (not shown)
to raise the supporting framework 209 of the pin ear
riage 6 to the extent that the previously depressed pins
5a of the pin carriage 5 will depress corresponding pins
7 of the pin carriage 6. The pin carriage 6 comprises
as many orders of rows of pins 7 as there are racks 27
as its transmission to the value setting mechanism and the
initiation of such entry occurs in the same manner as
already described for the entry in of the multiplier. How
ever, the value is not entered into the storage device A
but into the value entry mechanism of the calculator
shown in FIG. 1A whereas the storage device A remains
unin?uenced by this action. When the typewriter car
riage is tabulated to the second column of the invoice, a
program control lug 301 (FIG. 6) on the typewriter closes
a contact 100 (FIG. 5B), whereupon the solenoid 13a
(FIG. 3) is energized and attracts its armature 12a. Thus,
the lever 14a is rotated counterclockwise and the lever is
released from the pin 15a. The lever 14a is pivoted to the
lever 17a, which is freely mounted on shaft 18. Lever
and is laterally ?xed relative to the racks. Detent means 30 17a is rotated clockwise by the pull of the associated spring
(not shown) hold the pins 5a in their respective raised
16a and pulls the lever 14a in vertical direction. On the
or depressed position during the setting of the pins 7.
lever 17a, a pin 38 (FIG. 1B) is provided, which pin
A plurality of ?ngers 210 are carried by a transverse
through the vertical movement of the lever ‘17a moves
shaft 211 which ?ngers are rocked clockwise near the
downwardly away from a lever 39. The lever 39 is
end of the cycle of operation of the previously mentioned
pivoted on a locking bail 40, which bail, in turn, is pivoted
shaft 207. Fingers 210 underlie all of the pins 7 (except
at 41. Through the urgency of a spring 42 the bail 40
the #9 value pin which is ?xed in depressed position)
is rotated downwardly so that the transverse detent 58
and restore any depressed pins 7 to their initial raised
disengages from the indentations of the racks 43‘ to the
extent permitted by contact of the lever 39 with the pin
Conventional means (not shown) are provided for
8. A bail 44 is pivoted on a shaft 41. The bail 44
returning the pin carriage 5 and its pins 5a to the initial
carries a pin 45 which cooperates with a guide slot 4.6 in
positions thereof.
the racks 143. Due to the rocking of the bail 40 away from
After the setting of a value in pin carriage 6 is com
the indentation of the racks 43, the latter return to the
pleted, cam 208 acts through a roller 212 carried by a
initial zero positions following the urgency of the springs
lever 213 to reciprocate the lever about a pivot 213’. 45 47. The bail 44 is rocked downwardly by force of gravity
During ‘the clockwise movement of lever 213, a link 214
and permits noses 43a of the racks 43 to fall into slots
is pulled toward the left as seen in FIG. 3. The link is
28a on extensions 23 of the racks 27. Through the ad
appropriately connected (by means not shown) to a pair
vance of the racks 27 toward the selected numeral value,
of transverse ‘bars 215 (FIG. 1B) which are similarly
the racks 43 are now similarly adjusted. The movement
pulled toward the left and then returned to the initial
of racks 27 is transmitted through lever 48 (FIG. 1A) to
position shown. During the leftward movement of bars
the selection bar 49 of the calculator. The selection bar
215, the racks 27 are permitted to respond to the urging
49 of the present disclosure corresponding to the selec
of their respective springs 216 which pull the racks 27
tion bar 120 shown in the US. Patent No. 2,271,240
toward the left to the extent permitted by contact of a
issued January 27, 1942. According to the patent, one
respective shoulder 217 on each rack with a depressed
selection bar 120 is provided for each ordinal row of
pin 7. Thus, the racks 27 are each moved a discrete
value entry keys, and is set to one of ten respective
amount toward the left as seen in FIG. 1B, depending
differential value respresentative positions by depression
on the amount previously entered in the pin carriage 5
of a key. Such setting adjusts an actuator control mech
and 6.
anism for differentially driving the numeral wheels of
A member 28, ?xed to each rack 27, is moved with 60 a product register. The calculating machine of the above
the rack, and through a pin 23, moves the previously
mentioned patent forms the multiplication mechanism of
mentioned rack 22 to a similar value representative posi
The above-mentioned return of lever 17 to the posi
tion shown in FIG. 3 raises levers 32 and 33 whereupon
lever 32 (FIG. 1B) rocks the detent 25 clockwise to
engage the teeth of racks 22 and lock them in their
respective adjusted positions.
the machine in which the present invention is disclosed
as embodied, the main difference being that the selection
bars 49 of the present machine are set under the control of
the typewriter keys instead of the plural order keyboard.
The previously described energization of solenoid 11a
(FIG. 3) and the resultant clockwise movement of lever
17a, closes a switch 20a in the same manner that switch
Meanwhile, a roller, carried on the back side of cam
20 was closed. Switch 20a ('FIG. 5B) is parallel to
208, contacts a surface on lever 36 and rocks the same 70 switch 20 and energizes the previously mentioned solenoid
counterclockwise about its pivot 218.
206. This causes a second cycle of operation of shaft 207
Such movement of the lever 36 acts through a pin 37
to rock lever 17 counterclockwise about its pivot 18 to
its initial position where it is locked by engagement of
a latching notch on lever 14 with pin 15, thus restoring
during which the cams 35 and 208 are idly operated;
however, a second similar set of cams including cam 208a
is effective to restore levers 36a, 17a, and 14a to their
initial positions where they are locked by engagement of
lever 14a with pin 15a. The raising of lever 17a and the
pin 38 (FIG. 1B) carried thereby rocks the locking bail
counterclockwise to the extent that cars 58 enter the
teeth of the rack 43 which now stands in multiplicand
value representative position. A latch 59 (FIG. 3) is
pivoted at 6%} on the lever 14a. During the downward
vertical movement of the lever 14a contact 61a remains
At the upward movement, however, the
Patent No. 2,502,321, issued March 28, 1950, and com
prises in part a plurality of ordinally arranged keystems
266' and subkeystems 261 (FIG. 1A) corresponding to
similar keystems 201 and sub-keystems 202 shown in FIG.
4 of the lastmentioned patent. According to the patent
the keystems 2011 are manually operable whereas in the
presently disclosed arrangement a plurality of ordinally
arranged solenoids 9 and 81 (FIG. 1A) are provided for
selectively depressing the keystems 260. According to the
latch rests, on the contrary, with the shoulder 59a beneath
the pin 62, which pin is arranged on the lever 63 and 10 patent and the presently disclosed arrangement, the ex
treme right and left keystems are “live” keys, i.e., depres
rocks the lever 63 counterclockwise. At this operation
sion of either one of these keys initiates tabulation of the
the contact 61a is closed by the rod 65 on the lever 63
register carriage toward the right and left, respectively,
for the duration of one impulse.
to endmost positions of the carriage. The intermediate
This impulse starts from the current source through the
keystems are conditioning keys and do not initiate tabu
closed contact 68 (FIG. 5A) in bottom position, through
lation, but under the conditions noted below, serve to
the above-mentioned contact 61a to the contact lever 29
terminate a tabulation of the register in a position cor—
(FIG. 1B) for the ?rst order. In correspondence to the
responding to the index of the key depressed. The present
setting of the contact lever 29, according to the ?rst num
embodiment of the tabulating mechanism has been modi
ber of the ?rst factor in the example, the energization of
?ed so that a depressed intermediate tabulator key will
a solenoid 70a to 79k (FIG. 5A) follows through the
stop rightward tabulation of the carriage but will not
pertaining contact strip 38. By means of the solenoids
stop leftward tabulation of the carriage. Thus, if an
7 0a to 70k, the corresponding multiplier value key of the
calculator is depressed.
The multiplication initiating
mechanism is the same as that disclosed in the previously
mentioned Patent No. 2,271,240 Where are shown ten
multiplier keys 2001 representative of the digital multiplier
values “0” and “1” to “9.” Depression of each key, either
manually, as disclosed in the patent, or by a respective
solenoid 70k~7tla as disclosed herein, initiates ordinal
multiplication ?rst by the lowest ordinal multiplier digit
and each such ordinal multiplication operation is fol
lowed by an automatic shift of the product register in an
ascending direction relative to the ordinal actuators. The
switch 72 (FIG. 2) is closed soon after the energization of
intermediate tab key is simultaneously depressed with
the rightward tabulation initiating key, then rightward
tabulation of the carriage is terminated when the carriage
reaches a position corresponding to the index of the in
termediate tab key; on the other hand, if an intermediate
tab key and the leftward tabulate initiating key are simul
taneously depressed, the intermediate tab key does not
terminate tabulation, and the carriage is shifted to its
leftmost position. In the present case, all of the solenoids
for the tabulator keys bear the reference numerals 9 and 9a
except for the solenoid 81, the energization of which de
presses the leftward tabulate initiating key.
In the foregoing example the solenoid 81 was energized
one of the solenoids 70a to 70k in response to the move 35
at the termination of the multiplication operation. In
ment of the switch pinning lever 71 of the calculator dur
order that the calculation operation can be carried out in
ing the multiplying operation, and the switch 72 remains
the last decade before the return shifting of the carriage
closed for the duration of an ordinal multiplication.
starts and before the circuit of the step carriage switch 67
and opens a contact 66 in the circuit of the energized 40 is opened, the contact 85 (FIG. 2) is provided when multi~
Closure of switch 72 energizes the solenoid 73 (FIG. 5A)
solenoid 70a to ‘70k. This current interruption follows
if the multiplier is a value 1 to 9, Whereas the current
interruption at the processing of the multiplier value of
“0” occurs through the switch 75 (FIG. 3), which switch
is closed by a cam 76 of the step switch 67. The product
register carriage 250 (FIG. 3) of the calculating machine
has a rack and pinion drive connection 251-252 for driv
ing a shaft 253 each time the product register is shifted.
Shaft 253 has appropriate drive connection with a shaft
254' upon which is ?xed an eccentric cam 255 (for the
step switch 67) and a step cam 76. Cam 255 closes
and opens switches for successively enabling the ordinal
multiplying circuits. Cam 76 closes switch 67 during
each shifting operation. After the calculator has com
pleted the ?rst multiplication, the carriage automatically
plying by the values 1 to 9, and the contact 86 (FIG. 5A)
is provided for the value “0.” According to the numeral
value, the circuit is closed at the delay relays 87, 88
through one of these contacts 85, 86, or through both.
By the cooperation of these relays, the contacts W and
St? are opened and the return shift of the calculator’s
carriage and the interruption of the current for the step
switch 67 are delayed until the calculation operation is
?nished and the previously mentioned switch pinning lever
71 (FIG. 2) has returned to its normal position. The con
tact 86 (FIGS. 3 and 5A) is closed by the cam 76, only
for a short time, and, more speci?cally, during the shift
from order to order. After the calculating operation is
stopped by the proceeding described above, and the prod~
uct appears on the result device 559 (FIG. 1A) of the
shifted one order to the next higher ordinal position, at
calculator, the product register carriage is returned to its
which operation the cam 255 is simultaneously rotated
one step. Because of the shifting motion of the cam 255,
the contact 68 (FIG. 5A) is opened and the contact 77 is
closed for the next decade. Now, the multiplying opera
tion is repeated in accordance with the value of the next
ordinal multiplier value and this process is repeated in
each order until the last order is reached. In this posi
tion (last multiplying order) a contact 78 is closed, by
initial leftmost shifted position.
means of which, on the one hand, current from the circuit
point marked + flows through the contact 73, and the
contact 86* through lead N (FIG. SE) to the solenoid 81,
In the above description, the ?rst value which was
typed (in C01. I of the invoice) was entered into the
storage device A (FIG. 113) as a multiplier value by virtue
of the fact that a lug on the platen carriage closed a
switch to to energize the solenoid 11; however, if this
same lug had closed the switch 10a in the circuit of the
solenoid 111a, then the ?rst factor would have been entered
into the selection bars 49 as a multiplicand factor. Thus,
it will be clear that the invoice may be altered to suit
the customer and that the sequence of entry of the mul
tiplier and multiplicand factors is but a matter of choice.
Descriptive matter may be written in the third column
so that the armature (not shown) causes the initiating of
an automatic return tabulation of the calculator carriage
to the initial leftmost position as described below; mean 70 (Iii) of the invoice form given by example without com“
puting such numbers in the calculator. Therefore, a lug
while, current flows through the contact 79 and lead R
302 (FIG. 6) on the carriage is provided to open switch
(FIG. SE) to the relay 83 (subsidiary electric circuit),
279 (FIG. 53) so that no solenoids 3 (FIGS. 13 and
which relay opens the contact 84, and thereby the circuit
of the step switch 67 (FIG. 3) is opened. The tabulating
5A) will be energized during typing of numeral values
mechanism is of the same type as disclosed in the US. 75 in this column.
The column IV is chosen in order to
write down the product obtained from the factors of the
columns I and II by an automatic operation under the
control of a lug on the typewriter carriage. For this pur
pose, the column IV is ?rst of all tabulated to its highest
ordinal position. In this position, a contact 90‘ (FIG.
5B) is closed by a lug 3% (FIG. 6). Thus, the magnet
91 (PTG. 2)‘ is energized, pulls its armature 91a down
.Iardly. This rocks the lever Q2 counterclockwise about
tiplier and multiplicand are in excess of two. In this
case, the operator manually closes a respective one of
theswitches 53, 54, 55, 56 (FIG. 5B) representative of
3, 4, 5, or 6 fractional digits. Such closure partially
completes a circuit to a corresponding tabulation con
ditioning solenoid 9. Then, while the typewriter platen
is being tabulated from column III to column IV of the
invoice form, a lag (not shown) on the typewriter car
riage momentarily closes a switch 2th} (FIG. 513) thus
associated pin 94. A lever 97 is pivoted to the lever ?2
completing a circuit from the main line X, lead 280', the
at 96 by means of which the lever 97 is moved downward 10 lefthand switch 1 (now closed), lead 2% to the closed
ly and the lever 97 depresses the pin 98 by means of which
switch 2%, lead 282 to the closed switch 53——56 and
pin the lever 99, on the one hand, is rocked counterclock
therefrom to a respective solenoid 9, leads 233, 284 to
Wise about pivot Tilt] and, on the other hand, the sensing
the ground line Y. This energizes an intermediate sole
device B (FIG. 1A) is, rocked clockwise about a pivot
noid 9 and simultaneously energizes the right tabulation
271. A supporting shaft 272 for a plurality of ordinal
solenoid 2431 which is in parallel with all of the solenoids
its pivot 93.
This closes the contact 95' by means of an
ly arranged pinions 161 is carried by the framework of
9. Thus, the product register is tabulated toward the
the sensing device B (by means not shown). Thus, the
right in a value ascending direction to a position of dec
rocking movement of device B moves the pinion 101 into
engagement with the ordinal numeral wheel gears 273
imal alignment with the decimal point in the read-out
associated with the numeral wheels of the product regis
ter. Also, the contact 119 (FIGS. 3 and 5A) is opened
Reverting now to the previously described engagement
of pinions lttl (FIG. 1A) with the product register gears
If‘ :chanism.
by the pin 93, and the contacts 12% as well as the con
273, such engagement was followed by release of the
tacts 121 are closed. The shifting of the lever 97, in the
racks 118, 1180. from the detent mechanism 116. The
direction of the arrow (FIG. 2), moves the pin 9% (H65. 25 rfi'ings 125 tend to pull all of the racks 118 and 1180
2 and 3) under the noses 162 and 192a of the levers
toward the right as seen in FIG. 1A, but with the excep
I03 and 163a, which noses rock about the pivots M95 and
tion of one rack, such movement of the racks is prevented
ltiSa by means of the pulling of the associated springs
by engagement of gears 191 with gears 273, the latter be
1M and 1040, so that the noses Hi2 and 1920 latch the
ing locked at this time. The rack 1180, however, is not
pin 93. When the lever 99 (FIG. 2) is rocked as de
in engagement with a gear of the product dials and con
scribed above, the shoulder 3% releases the lever 1'37,
sequently is moved, by the pull of the spring 125, in the
which lever rocks counterclockwise in response to a spring
direction of the arrow. During this operation, the rack
(not shown). The contacts 116 and 111 (FIGS. 2~ and
118a hits the lever 125, rocks this lever counterclock
5A) are opened and the contact 112 is closed by the rock—
wise about an associated pivot 127 and closes the con
ing of the lever 99.
tact 128 by means of leg ‘126a of the lever 126. The so
The shaft 115 (FlGS. 1A and 2) is rocked clockwise
lenoid 129 (FIG. 2) is energized by the closing of the
by the rocking of the lever 197 and thus the bail 116
contact 128, attracts the armature 130 and depresses the
(FIG. 1A) is brought out of the path of the catches 117
clear key 132 of the calculator by means of the lever
of the racks 11% so that these racks are free to move.
131. The clear key 132 of the present disclosure corre
The contact 111 is opened by the catch 1% of the lever 40 sponds to the middle dial (product register) clear key
93‘ and interrupts the circuit of the solenoid 92. A con
373 of the previously mentioned Patent No. 2,271,240,
tact 7122 (FIG. 5A) is provided in a parallel circuit for
the depression of which initiates the operation of a sin
the solenoid 91, which contact is closed by the action of
the relay 123 if the latter becomes de~energized by the
opening of the contact 124. The contact 124- is closed
during the carriage shifting from the end position (of
the calculator) to the regulated decade by the cam 76
(FIG. 3) and opens the contact 1122 by energization of
the relay 123. Only when the carriage has stopped in
the selected decade, the contacts 124 remain open, the
relay 123 falls back, and the contacts 12-2 close the cir~
cuit for the solenoid M. ‘In this manner energization of
solenoid 91 and the initiation of a product value sensing
operation is delayed in case the product register is being
shifted at the time the contacts 99 (FIG. 5B) are closed.
Under most conditions, shifting will have been completed
by the time the typewriter carriage is tabulated to column
IV of the invoice from where the product is to be typed
out; however, under certain conditions the product regis
ter will be shifting at such time.
It will be recalled that
at the end of multiplication, the solenoid 83. (FIG. 5B)
is energized and the product register is return shifted to
its initial leftmost position. This is the position in which
the product register normally stands when read-out oc
curs. As noted hereinafter, the product is typed out in
terms of dollars and cents and therefore only two frac
tional digits are required to be typed. Means described
hereinafter, are provided to print a decimal point between
the second and third rightmost digits of the product; there
fore, if the sum of the fractional digits in the product
is equal to tWo then when the product register is shifted
to its extreme leftmost position, the decimal point in the
product register and the decimal point in the product
read-out mechanism will be properly aligned. Assume,
however, that the sum of the fractional digits in the mul
gle cycle clutch for driving the product register numeral
wheels in a reverse direction.
The Wheels 89 (FIG. 1A)
of the product register are turned to the initial position,
or naught, by the clearance operation of the calculator,
and the racks ‘113, which are engaged with the numeral
wheel gear 273, are moved to the value previously stand
ing in the product register. The solenoid 133 (FIG. 2)
is energized simultaneously with the solenoid 129.
Through the cooperation of the solenoid 133, the lever
13s is rocked by means of the bolt 134, and the shaft 136
rocks a control lever 137, which engages a single cycle
clutch and closes the contacts 133. The contact 138
switches on the motor current which motor circuit is
closed by the contacts 139 for the time duration of a ro
tation of the cam shaft 140 by the clutch, whereas the
circuit is opened for the solenoids 129 and 133 by the con
tacts 13% at the start of the rotation motion. Through
60 the rotation of the cam shaft 149, the contacts 141 of
the commutator 360 are closed one after another.
1159 (FIG. 2) on shaft 140 closes switch 147 (FIG. 5B),
thus completing the preparation of the product type-out
The circuit for the ?rst order is closed by the closing
of the ?rst contacts 14-1 by means of the cam 142 (FIG.
2) and of the pin 143. Thus, one of solenoids 144 (FIG.
5A), corresponding to the number key of the typewriter,
is energized, to wit, that solenoid which corresponds to
the strip 145 on which the contact brush 146 ?nds itself.
The energized solenoid 144- sets in motion the key lever
corresponding to it, by which the respective number is
typed out in the known manner. The process, just now
described for typing the ?rst number, is the same as for
typing of the other numbers by the successive closing
of further contacts 141. Only one set of contacts 141 at
a time is closed. A spark impact capacitor 148 is con
following the writing of the last number. By this’ opera
nected through contacts 147 (FIG. 5B) in the preparing
tion the pertinent solenoid 158, 159 or 160, (FIG. 4)
is energized and attracts the associated armature 158a,
circuit for the purpose of the smooth functioning of the
proceedings described just now.
161, 162 or 163, which lever in turn in?uences a control
Suppose a number 51.92 is to be written, as according
to the example. In this case it signi?es-—with a capacity
of a calculator of eight orders-that four shifts of the type
159a or 16911, to rock the corresponding pivoted lever
ler device already known (not shown) for the storage de
vices: C, D or E. Concerning totaling, the solenoids 167,
1-68 or 169 are energized by closing the contacts such as
the contacts 16% for the solenoid 169. The solenoids
ing written down. Means are provided for suppressing 10 rock the levers 17 0, 171 or 172 for causing the respective
totalizing by means of the solenoid armature 167a, 168a
the printing of zeros until after the ?rst signi?cant digit
or 1160a. A subtotal operation is carried out in the same
is printed. For this purpose the circuit of the zero print
manner as a total operation; however, upon the single
solenoid 2-90‘ (FIG. 5A) is normally open at switch 158a
writer carriage must be completed without a number be-'
and remains open until a solenoid other than zero is ener
typewriter escapement following the writing of the last
gized. When one of the value solenoids 1-4-4 (FIG. 5A)
or the decimal point solenoid 153. is energized, current
?ows through the common lead S (FIG. 5B) and ener
gizes the solenoid 152 which closes switch 153a in the
circuit of the zero print solenoid 2%‘ (FIG. 5A). There
number in the value of the subtotal, one of the contacts
155, 156 or 157 is closed by a lug on the typewriter car
after whenever the commutator 1141 enables a circuit of
the product matrix 145 in which a Zero has been deter
mined, a zero will be printed.
In this manner the product is typed out under the con
trol of the matrix 146 and the commutator I141. Ac
riage, and by this also the pertaining solenoid 158, 159
or 160 is energized. ‘By this operation, a machine op
eration is initiated to transmit the value to the selected
storage register. This value was entered in the pin car
riage during typing out of the subtotal. This mechanism
makes it possible to transmit the successive value to one
or more of the other registers. The subtotal 156.55 is
written in the column IV of the form in the example un
cording to the present embodiment in which eight orders 25 der control of the mechanism described above. The per
centage value 12.50 to be printed on the following line
of the product register are sensed and typed out, the dec
is written on the form as the second factor, whereas the
imal point will be located ‘between the second and third
subtotal written out forms the ?rst factor and as such has
rightmost orders of the product, as typed. This loca
been already transmitted to the adjusting storage device
tion corresponds to the number 7 commutator 1141, switch
in the circuit of the decimal solenoid 153. Thus, digital
values are printed under the control of the #1 to #6
switches 141, the decimal is invariably printed under con
trol of the #7 switch 141, the #8 and #9 switches 141
control the printing of the fractional digits. The #10,
#11, and #12 switches 141 are reserved for other func
tions such as symbol printing, resetting, tabulation, etc.,
and explanation of the same is not necessary for an under
A by the setting of the racks 27. Multiplication follows
in the same manner, as already described. By the opera
tion of a predetermined key, shown as the per centum
(%) key, of the typewriter, the contacts 282 (FIG. 5A)
are ‘closed and, therefore the electric circuit for the sole
35 noid 9A (FIG. 5B) is closed.
The energization of the
solenoid 9A depresses an intermediate tabulation key
260 (FIG. 1A) to condition for a tabulation of the prod
not register, upon conclusion of discount multiplication,
to a position which is two orders to the right of its nor
standing of the invention.
The typing of the product causes entry of the typed
value into the shiftable pin carriage 5 where the value may 40 mally returned position. This properly aligns the dec
imal point in the amount of discount with the decimal
be used as a subsequent multiplier value by transferring
point in the read-out mechanism. Then the text discount
the value from pin carriage 5 to pin carriage 6 and then
into the multiplier storage device A in the same manner
as previously described in connection with the invoice;
also, the value standing in the pin carriage may be trans
ferred into the pin carriage 6 and then entered from the
racks 27 into a selected storage register C, D, or E; alter
natively, the value standing in the pin carriage 5 may ‘be
cleared therefrom either by manual depression of a con
ventional clearance initiating key, or it may be trans
ferred to pin carriage ‘6 after which the cyclically oper
able shaft 207 (FIG. 3) may be rotated once through a
“blank” cycle without an accompanying energization of
is written in the third column and in connection with that
the minus key is manually depressed and, by this, the con
tacts 285 are closed. The relay 286 is thus energized
and causes negative entry to the register. Then, after
the platen is tabulated to column IV, the product 19.56
is written down as a minus sum by an automatic opera
tion, as already described. The subtotal is written out
by an automatic operation, in the column V by the tab
ulation to this column. In the example carried out, the
subtotal is 136.39. This amount is simultaneously trans
mitted to a register C, D or E, controlled for this pur
pose, and is stored there. Then, the remaining goods
In this case the racks 27
(FIG. 1B) are idly reciprocated without entering the 55 entries are written and reckoned up in the same manner
electromagnets '11 or 11a.
as described so far, and their sum totals are likewise
value anywhere and the pin carriages 5 and 6 are auto
stored in the corresponding device: C, D or E.
matically cleared in the usual manner.
The contact 173 is closed for the writing of the sub
If a value is entered in one of the registers C, D, or
total $536.08 by means of the pertaining key, and by this
E, mentioned above, such a value may be treated as a
subtotal value, a total value, or merely as a factor which 60 a machine operation is initiated and the subtotal is written
out by the typewriter in an automatic operation as already
is to be re-entered into the calculating machine.
described, and simultaneously the sum is again brought
A subtotal, total, or factor value can be recalled mere
ly by engaging a respective register C, D, or E with the
racks 27 and then zeroizing the register, during which
operation the racks 27 are set to corresponding values
cleared out of the register. Meanwhile, the cleared value
in in the pin carriage 5 and transmitted to the register A
as the ?rst factor.
The 2% discount is then calculated in the same manner
as the rebate by the calculator and written down as a
minus amount. Then, the subtotal 525.36 is typed. The
entries: packing, postage and insurance are added to the
register C, D or E, by writing in the column V, where
70 also the subtotal 525.36 is contained, and then the contact
When a typed out product value is to be accumulated,
174 is closed by the operation of the total key, and the
may be re-entered as a multiplier or multiplican-d value
depending on whether the electromagnet 11 or 11a is
the choice of the register in which the value is to be ac
total 530.36 is written out by an automatic working mo
cumulated is controlled by a lug 304 (FIG. 6) on the
typewriter carriage, which lug closes one of the contacts,
tion. Three storage registers are foreseen: C, D and E by
the shown demonstrative example. However, it is evident,
155, 156 or 157 (FiG. 5B) during carriage escapement 75 without further explanation, that the arrangement of a
great number of mechanical storage devices is possible.
But it is also evident that known electric devices can be
used for storing up the number values, which electric de
vices get their impulsions either directly by writing the
number in the same manner as the systems 3, or, respec
tively, by the register B.
The invention claimed is:
1. A typewriter having a keyboard, a typewriter platen,
a carriage therefor and means for tabulating the platen to
a predetermined typing position, in combination with a cal 10
culating machine, mechanism responsive to the typewriter
5. A combined typewriter and calculator as de?ned in
claim 1 including means operable by the platen carriage
when in a ?rst predetermined position thereof for enabling
the ?rst factor storing mechanism with respect to the
second value entry mechanism, and operable in a second
predetermined position thereof for disabling said ?rst
factor storing mechanism and enabling the second factor
storing mechanism with respect to the second value entry
6. A combined typewriter and calculator as de?ned in
claim 1 including selectively settable means to reverse the
sequence of value transfer operations and ?rst cause
transfer of values from the second value entry mechanism
keyboard for entering a selected value in a ?rst value entry
mechanism, a second value entry mechanism, means for
transferring a value from the ?rst to the second value
to the second factor storing mechanism followed by sub
entry mechanism, a ?rst factor storing mechanism, a 15 sequent transfer of values from said entry mechanism to
second factor storing mechanism means for transferring
the ?rst factor storing mechanism.
respective values from the second value entry mechanism
7. A combined typewriter and calculator as de?ned in
to the ?rst and second factor storing mechanisms, a plural
claim 1 comprising an ordinally arranged value storing
order register, mechanism operable under control of the
matrix operable under control of the register to receive
?rst and second factor storing mechanisms for entering 20 the value of the product standing in said register, a plu
the result of a calculation into said register, a plural order
electro-mechanical storage device, means for transferring
the result from said register to the electromechanical stor
age device, a plurality of normally disabled mechanisms
for operating the typewriter numeral keys, a step switch 25
for sequentially enabling selected typewriter key operating
mechanisms under the control of said electromechanical
storage device, a tabulation initiating key, and means
responsive to the tabulation initiating key to initiate the
operation of the step switch.
I 2. A combined typewriter and calculator as de?ned
in claim 1, including means shiftable with the typewriter
platen and operable in predetermined shifted positions
rality of electrical circuits each including an ordinal por
tion of said matrix, a type operating solenoid in each of
said circuits, and a stepping switch for energizing the ordi
nal circuits in seriatim to cause type-out of the product
8. A combined typewriter and calculator as de?ned
in claim 7 including a storage register, means responsive
to a product type-out operation for simultaneously enter
ing the product in the ?rst value entry mechanism, means
for adjusting the second value entry device to the same
value as that standing in the ?rst value entry mechanism,
means for selectively engaging the storage register with a
drive mechanism, and mechanism for operating the stor
thereof to automatically disable the keyboard with respect
age register drive mechanism under the control of the sec
to the value entry mechanism.
35 ond value entry mechanism.
3. A combined typewriter and calculator as de?ned in
claim 1 including means for automatically clearing the
References Cited in the ?le of this patent
?rst factor storing mechanism incident to the operation
of the means which transfers a value from the second value
entry mechanism to said storing mechanism.
40 2,084,445
Kottman ____________ __ June 22, 1937
4. A combined typewriter and calculator as de?ned in
claim 1 including means carried by the platen carriage for
initiating the operation of the step switch.
Lake et a1. ____________ __ July 2, 1946
Ellerbeck ______________ __ June 4, 1957
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