US3053444A

US3053444A - Heise

Info

Publication number: US3053444A
Authority: US
Publication date: 1962-09-11
Anticipated expiration: 1979-09-11

Description

Sept. 11, 1962 K. HEISE 3,053,444

ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES '7 Sheets-Sheet 1 Filed Dec. 3, 1957 INV EN TOR.

KURT Hsvss sywkwflfmz Sept. 11 1962 K. HEISE ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES Filed Dec. 3, 1957 7 Sheets-Sheet 2 FIG. 1B.

INVENTOR.

Kur-zr HEISE K. HEISE 3,053,444 ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES 7 Sheets-Sheet 3 Sept. 11, 1962 Filed Dec. 3, 1957 INVENTOR, K u 21' H mm:- BY dz .2 ZdIV/ f m mirm mom 8 3,053,444 ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES Sept. 11, 1962 K. HEISE BETWEEN TYPEWRITERS AND CALCULATING MACHINES Filed Dec. 3, 1957 7 Sheets-Sheet 4 P15 3 INVENTOR.

Kua'r Hus:

wugz g Sept. 11, 1962 K. HEISE 3,953,444

ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES Filed Dec. 5, 1957 7 Sheets-Sheet 5 INVENTOR.

KURT H5155 Septull, 1962 K. HEISE 3,053,444

ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES Filed Dec. 3, 1957 7 Sheets-Sheet 6 KLM Rs Tuvw x Y F115. 5 A- I mmvroze.

BY K u QT fia (@711 Sept. 11, 1962 I K. HEISE 3,053,444

ARRANGEMENTS FOR TRANSFERRING NUMERICAL VALUES BETWEEN TYPEWRITERS AND CALCULATING MACHINES Filed Dec. 5, 1957 7 tsh t 7 I N VEN TOR.

Kua'r Heose.

FIE EIEI BY 22 w 3,053,444 ARRANGEMENTS FGR TRANSFERRHNG NUMERI- CAL VALUES BETWEEN TYPEWRITER] AND CALCULATENG MACHINES 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. 23560.12)

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 calculator are combined to form an invoicing machine.

During the typing of an invoice, for example, the depression of the type keys causes the printing of prices and quantities in two respective columns in the invoice and enters the corresponding printed values into the calculator 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, descriptive 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, 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 totalizing register, or it may be used as the first 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 fractional digits in the multiplier and multiplicand is greater than the preset number, the excess fractional digits are dropped during readout. This is accomplished by presetting a selected one of a plurality of product register tabulating keys so that the decimal point of the product is properly aligned with the decimal point of the readout mechanism. The invention is described as follows with reference to the drawings in which:

FIGS. 1A and 1B comprise a section through the calculator 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 solenoids;

FIGS. 5A and 5B comprise a schematic wiring diagram of the combined typewriter and calculator.

FIG. 6 is a schematic illustration of the typewriter carriage and associated switch closing lugs as seen from the back of the carriage.

Assume that a calculation is carried out as represented in the following example of an invoice:

nited States Patent 3,s53,444 Patented Sept. 11; 19Z

ice

INVOICE Account No. 3435 Date December 17, 1956 Stock No.

Discount $136. 993

Stock No. 24/454 Discount 322,09s

Stock N o.

40 yd. 35 yd. 12 yd.

Discount Gash discount Packing Shipping Insurance 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 during which operation a respective contact 2 (FIG. 5A) is closed by depression of a corresponding type lever, which contact closes the circuit for a respective one of ten electromagnets 3 (FIG. 1B).

The electromagnets each operate through an associated linkage 3a, 3b and 4 to rock a pin setting member 4a downwardly whereupon a depending portion of member 4a depresses a corresponding pin 5a. Pins 5a are mounted in the usual manner in a pin carriage 5 which is shifted in an ascending direction relative to both members 4a and a fixed 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 first column of the invoice. 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 typewriter carriage lug 300 (FIG. 6). In this manner a circuit 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 that the lever 14 is pulled off of a pin 15. At such time the lever 14, which is pivotally connected to a lever 17,

is pulled down by a spring 16, which spring is fastened on the lever 17. 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 simultaneously turned clockwise and through this action, an adjustable multiplier factor storage device A (FIG. IE) on shaft 18 is rotated clockwise to the extent that an arm 21 of the rack 22 lies in the plane of movement of a pin 23. The rotation of the adjusting storage device A moves a pivot 24 of a bail 25 clockwise. Meanwhile, the downward movement of a pin 34 (FIG. 3) permits the

integral levers

33 and 32 to rock clockwise. In turn, the lever 32 (FIG. 1B) permits a bail 25 to rock counterclockwise out of engagement with the rack 22. 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 numeral value. The above-mentioned closing of contacts 20 (FIG. B) 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 earriage 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 and is laterally fixed relative to the racks. Detent means (not shown) hold the pins 5a in their respective raised or depressed position during the setting of the pins 7.

A plurality of fingers 210 are carried by a transverse shaft 211 which fingers are rocked clockwise near the end of the cycle of operation of the previously mentioned shaft 207. Fingers 210 underlie all of the pins 7 (except the #9 value pin which is fixed in depressed position) and restore any depressed pins 7 to their initial raised position.

Conventional means (not shown) are provided for returning the pin carriage 5 and its pins 5a to the initial positions thereof.

After the setting of a value in pin carriage 6 is completed, cam 208 acts through a roller 212 carried by a lever 213 to reciprocate the lever about a pivot 213. During the clockwise movement of lever 213, a link 214 is pulled toward the left as seen in FIG. 3. The link is appropriately connected (by means not shown) to a pair of transverse bars 215 (FIG. 1B) which are similarly pulled toward the left and then returned to the initial position shown. During the leftward movement of bars 215, the racks 27 are permitted to respond to the urging of their respective springs 216 which pull the racks 27 toward the left to the extent permitted by contact of a respective shoulder 217 on each rack with a depressed pin 7. Thus, the racks 27 are each moved a discrete amount toward the left as seen in FIG. 1B, depending on the amount previously entered in the pin carriage 5 and 6.

A member 28, fixed to each rack 27, is moved with the rack, and through a pin 23, moves the previously mentioned rack 22 to a similar value representative position.

The above-mentioned return of lever 17 to the position 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.

Meanwhile, a roller, carried on the back side of cam 208, contacts a surface on lever 36 and rocks the same counterclockwise about its pivot 218.

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 the mechanism for initiating the single cycle rotation of 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 contact bars 30, and these contact levers 29 are set to values corresponding to the value setting of their respective racks.

Thus, the entry of the multiplier factor is completed. The letters yd are then typed in column I of the example without the calculator being in any way influenced by this operation.

In order to write the number 3.35, the price per yard, the typewriter carriage is tabulated to the particular order of the column II which corresponds to the location of the highest significant digit. The typing of the value as well 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. However, 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 uninfiuenced by this action. When the typewriter carriage is tabulated to the second column of the invoice, a program control lug 301 (FIG. 6) on the typewriter closes a contact (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 17a is rotated clockwise by the pull of the associated spring 16a and pulls the lever 14a in vertical direction. On the lever 17a, a pin 38 (FIG. 1B) is provided, which pin through the vertical movement of the lever 17a moves downwardly away from a lever 39. The lever 39 is pivoted on a locking bail 40, which bail, in turn, is pivoted at 41. Through the urgency of a spring 42 the bail 40 is rotated downwardly so that the transverse detent 58 disengages from the indentations of the racks 43 to the extent permitted by contact of the lever 39 with the pin 8. A bail 44 is pivoted on a shaft 41. The bail 44 carries a pin 45 which cooperates with a guide slot .6 in the racks 43. Due to the rocking of the bail 40 away from the indentation of the racks 43, the latter return to the initial zero positions following the urgency of the springs 47. The bail 44 is rocked downwardly by force of gravity and permits noses 43a of the racks 43 to fall into slots 28a on extensions 23 of the racks 27. Through the advance of the racks 27 toward the selected numeral value, the racks 43 are now similarly adjusted. The movement of racks 27 is transmitted through lever 48 (FIG. 1A) to the selection bar 49 of the calculator. The selection bar 49 of the present disclosure corresponding to the selection bar shown in the US. Patent No. 2,271,240 issued January 27, 1942. According to the patent, one selection bar 120 is provided for each ordinal row of value entry keys, and is set to one of ten respective differential value respresentative positions by depression of a key. Such setting adjusts an actuator control mechanism for differentially driving the numeral wheels of a product register. The calculating machine of the abovementioned patent forms the multiplication mechanism of 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 20 was closed. Switch 20a ('FIG. 5B) is parallel to switch 20 and energizes the previously mentioned solenoid 206. This causes a second cycle of operation of shaft 207 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 uninfluenced. At the upward movement, however, the latch rests, on the contrary, with the shoulder 59a beneath the pin 62, which pin is arranged on the lever 63 and rocks the lever 63 counterclockwise. At this operation the contact 61a is closed by the rod 65 on the lever 63 for the duration of one impulse.

This impulse starts from the current source through the closed contact 68 (FIG. 5A) in bottom position, through the above-mentioned contact 61a to the contact lever 29 (FIG. 1B) for the first order. In correspondence to the setting of the contact lever 29, according to the first number of the first factor in the example, the energization of a solenoid 70a to 79k (FIG. 5A) follows through the pertaining contact strip 38. By means of the solenoids 7 a 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 first by the lowest ordinal multiplier digit and each such ordinal multiplication operation is followed 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 one of the solenoids 70a to 70k in response to the movement of the switch pinning lever 71 of the calculator during the multiplying operation, and the switch 72 remains closed for the duration of an ordinal multiplication. Closure of switch 72 energizes the solenoid 73 (FIG. A) and opens a contact 66 in the circuit of the energized 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 driving a shaft 253 each time the product register is shifted. Shaft 253 has appropriate drive connection with a shaft 254' upon which is fixed 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 completed the first multiplication, the carriage automatically shifted one order to the next higher ordinal position, at 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 operation 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 position (last multiplying order) a contact 78 is closed, by 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, 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; meanwhile, current flows through the contact 79 and lead R (FIG. SE) to the relay 83 (subsidiary electric circuit), which relay opens the contact 84, and thereby the circuit of the step switch 67 (FIG. 3) is opened. The tabulating mechanism is of the same type as disclosed in the US.

Patent No. 2,502,321, issued March 28, 1950, and comprises 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 20 1 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 patent and the presently disclosed arrangement, the extreme right and left keystems are live keys, i.e., depression of either one of these keys initiates tabulation of the register carriage toward the right and left, respectively, to endmost positions of the carriage. The intermediate keystems are conditioning keys and do not initiate tabulation, but under the conditions noted below, serve to terminate a tabulation of the register in a position cor responding to the index of the key depressed. The present embodiment of the tabulating mechanism has been modified so that a depressed intermediate tabulator key will stop rightward tabulation of the carriage but will not stop leftward tabulation of the carriage. Thus, if an 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 intermediate tab key; on the other hand, if an intermediate tab key and the leftward tabulate initiating key are simultaneously 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 depresses the leftward tabulate initiating key.

In the foregoing example the solenoid 81 was energized at the termination of the multiplication operation. In order that the calculation operation can be carried out in the last decade before the return shifting of the carriage starts and before the circuit of the step carriage switch 67 is opened, the contact 85 (FIG. 2) is provided when multiplying 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 calculators carriage and the interruption of the current for the step switch 67 are delayed until the calculation operation is finished and the previously mentioned switch pinning lever 71 (FIG. 2) has returned to its normal position. The contact 86 (FIGS. 3 and 5A) is closed by the cam 76, only for a short time, and, more specifically, during the shift from order to order. After the calculating operation is stopped by the proceeding described above, and the product appears on the result device 559 (FIG. 1A) of the calculator, the product register carriage is returned to its initial leftmost shifted position.

In the above description, the first 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 first 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 multiplier and multiplicand factors is but a matter of choice.

Descriptive matter may be written in the third column (Iii) of the invoice form given by example without com puting such numbers in the calculator. Therefore, a lug 302 (FIG. 6) on the carriage is provided to open switch 279 (FIG. 53) so that no solenoids 3 (FIGS. 13 and 5A) will be energized during typing of numeral values 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 purpose, the column IV is first of all tabulated to its highest ordinal position. In this position, a contact 90 (FIG. B) is closed by a lug 3% (FIG. 6). Thus, the magnet 91 (PTG. 2) is energized, pulls its armature 91a downardly. This rocks the lever Q2 counterclockwise about its pivot 93. This closes the contact 95' by means of an associated pin 94. A lever 97 is pivoted to the lever ?2 at 96 by means of which the lever 97 is moved downwardly and the lever 97 depresses the pin 98 by means of which pin the lever 99, on the one hand, is rocked counterclock- Wise about pivot Tilt] and, on the other hand, the sensing device B (FIG. 1A) is, rocked clockwise about a pivot 271. A supporting shaft 272 for a plurality of ordinally arranged pinions 161 is carried by the framework of the sensing device B (by means not shown). Thus, the rocking movement of device B moves the pinion 101 into engagement with the ordinal numeral wheel gears 273 associated with the numeral wheels of the product register. Also, the contact 119 (FIGS. 3 and 5A) is opened by the pin 93, and the contacts 12% as well as the contacts 121 are closed. The shifting of the lever 97, in the direction of the arrow (FIG. 2), moves the pin 9% (H65. 2 and 3) under the noses 162 and 192a of the levers I03 and 163a, which noses rock about the pivots M95 and ltiSa by means of the pulling of the associated springs 1M and 1040, so that the noses Hi2 and 1920 latch the pin 93. When the lever 99 (FIG. 2) is rocked as described above, the shoulder 3% releases the lever 1'37, which lever rocks counterclockwise in response to a spring (not shown). The contacts 116 and 111 (FIGS. 2- and 5A) are opened and the contact 112 is closed by the rock ing of the lever 99.

The shaft 115 (FlGS. 1A and 2) is rocked clockwise by the rocking of the lever 197 and thus the bail 116 (FIG. 1A) is brought out of the path of the catches 117 of the racks 11% so that these racks are free to move.

The contact 111 is opened by the catch 1% of the lever 93 and interrupts the circuit of the solenoid 92. A contact 7122 (FIG. 5A) is provided in a parallel circuit for 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 circuit 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 carria e is tabulated to column IV of the invoice from where the product is to be typed out; however, under certain conditions the product register 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 occurs. As noted hereinafter, the product is typed out in terms of dollars and cents and therefore only two fractional 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; therefore, 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- 8 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 conditioning 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 carriage momentarily closes a switch 2th (FIG. 13) thus completing a circuit from the main line X, lead 280', the lefthand switch 1 (now closed), lead 2% to the closed switch 2%, lead 282 to the closed switch 5356 and therefrom to a respective solenoid 9, leads 233, 284 to the ground line Y. This energizes an intermediate solenoid 9 and simultaneously energizes the right tabulation solenoid 2431 which is in parallel with all of the solenoids 9. Thus, the product register is tabulated toward the right in a value ascending direction to a position of decimal alignment with the decimal point in the read-out If :chanism.

Reverting now to the previously described engagement of pinions lttl (FIG. 1A) with the product register gears 273, such engagement was followed by release of the racks 118, 1180. from the detent mechanism 116. The rfi'ings 125 tend to pull all of the racks 118 and 1180 toward the right as seen in FIG. 1A, but with the exception of one rack, such movement of the racks is prevented by engagement of gears 191 with gears 273, the latter being locked at this time. The rack 1180, however, is not in engagement with a gear of the product dials and con sequently is moved, by the pull of the spring 125, in the direction of the arrow. During this operation, the rack 118a hits the lever 125, rocks this lever counterclockwise about an associated pivot 127 and closes the con tact 128 by means of leg 126a of the lever 126. The solenoid 129 (FIG. 2) is energized by the closing of the contact 128, attracts the armature 130 and depresses the clear key 132 of the calculator by means of the lever 131. The clear key 132 of the present disclosure corresponds to the middle dial (product register) clear key 373 of the previously mentioned Patent No. 2,271,240, the depression of which initiates the operation of a single 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 standing 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 rotation of the cam shaft 140 by the clutch, whereas the circuit is opened for the

solenoids

129 and 133 by the contacts 13% at the start of the rotation motion. Through the rotation of the cam shaft 149, the contacts 141 of the commutator 360 are closed one after another. Cam 1 59 (FIG. 2) on shaft 140 closes switch 147 (FIG. 5B), thus completing the preparation of the product type-out circuit.

The circuit for the first order is closed by the closing of the first 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 finds 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 first number, is the same as for typing of the other numbers by the successive closing 9 of further contacts 141. Only one set of contacts 141 at a time is closed. A spark impact capacitor 148 is connected through contacts 147 (FIG. B) in the preparing circuit for the purpose of the smooth functioning of the proceedings described just now.

Suppose a number 51.92 is to be written, as according to the example. In this case it signifies-with a capacity of a calculator of eight orders-that four shifts of the typewriter carriage must be completed without a number be-' ing written down. Means are provided for suppressing the printing of zeros until after the first significant digit is printed. For this purpose the circuit of the zero print solenoid 2-90 (FIG. 5A) is normally open at switch 158a and remains open until a solenoid other than zero is energized. When one of the value solenoids 1-4-4 (FIG. 5A) or the decimal point solenoid 153 is energized, current flows through the common lead S (FIG. 5B) and energizes the solenoid 152 which closes switch 153a in the circuit of the zero print solenoid 2% (FIG. 5A). Thereafter whenever the commutator 1141 enables a circuit of the product matrix 145 in which a Zero has been determined, a zero will be printed.

In this manner the product is typed out under the control of the matrix 146 and the commutator 141. According to the present embodiment in which eight orders of the product register are sensed and typed out, the decimal point will be located between the second and third rightmost orders of the product, as typed. This location 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 control 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 functions such as symbol printing, resetting, tabulation, etc., and explanation of the same is not necessary for an understanding of the invention.

The typing of the product causes entry of the typed value into the shiftable pin carriage 5 where the value may be used as a subsequent multiplier value by transferring 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 transferred into the pin carriage 6 and then entered from the racks 27 into a selected storage register C, D, or E; alternatively, the value standing in the pin carriage 5 may be cleared therefrom either by manual depression of a conventional clearance initiating key, or it may be transferred to pin carriage 6 after which the cyclically operable shaft 207 (FIG. 3) may be rotated once through a blank cycle without an accompanying energization of electromagnets '11 or 11a. In this case the racks 27 (FIG. 1B) are idly reciprocated without entering the value anywhere and the pin carriages 5 and 6 are automatically cleared in the usual manner.

If a value is entered in one of the registers C, D, or E, mentioned above, such a value may be treated as a subtotal value, a total value, or merely as a factor which is to be re-entered into the calculating machine.

A subtotal, total, or factor value can be recalled merely 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 may be re-entered as a multiplier or multiplican-d value depending on whether the

electromagnet

11 or 11a is energized.

When a typed out product value is to be accumulated, the choice of the register in which the value is to be accumulated is controlled by a lug 304 (FIG. 6) on the typewriter carriage, which lug closes one of the contacts, 155, 156 or 157 (FiG. 5B) during carriage escapement following the writing of the last number. By this operation the

pertinent solenoid

158, 159 or 160, (FIG. 4) is energized and attracts the associated armature 158a, 159a or 16911, to rock the corresponding pivoted

lever

161, 162 or 163, which lever in turn influences a controller device already known (not shown) for the storage devices: 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 rock the levers 17 0, 171 or 172 for causing the respective totalizing by means of the

solenoid armature

167a, 168a or 1160a. A subtotal operation is carried out in the same manner as a total operation; however, upon the single typewriter escapement following the writing of the last number in the value of the subtotal, one of the

contacts

155, 156 or 157 is closed by a lug on the typewriter carriage, and by this also the pertaining

solenoid

158, 159 or is energized. By this operation, a machine operation is initiated to transmit the value to the selected storage register. This value was entered in the pin carriage 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 under control of the mechanism described above. The percentage value 12.50 to be printed on the following line is written on the form as the second factor, whereas the subtotal written out forms the first factor and as such has been already transmitted to the adjusting storage device A by the setting of the racks 27. Multiplication follows in the same manner, as already described. By the operation 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 solenoid 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 prodnot register, upon conclusion of discount multiplication, to a position which is two orders to the right of its normally returned position. This properly aligns the decimal point in the amount of discount with the decimal point in the read-out mechanism. Then the text discount is written in the third column and in connection with that the minus key is manually depressed and, by this, the contacts 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 operation, 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 transmitted to a register C, D or E, controlled for this purpose, and is stored there. Then, the remaining goods entries are written and reckoned up in the same manner as described so far, and their sum totals are likewise stored in the corresponding device: C, D or E.

The contact 173 is closed for the writing of the subtotal $536.08 by means of the pertaining key, and by this a machine operation is initiated and the subtotal is written out by the typewriter in an automatic operation as already described, and simultaneously the sum is again brought in in the pin carriage 5 and transmitted to the register A as the first 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 also the subtotal 525.36 is contained, and then the contact 174 is closed by the operation of the total key, and the total 530.36 is written out by an automatic working motion. Three storage registers are foreseen: C, D and E by the shown demonstrative example. However, it is evident, without further explanation, that the arrangement of a 1 i 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 devices get their impulsions either directly by writing the number in the same manner as the systems 3, or, respectively, 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 calculating machine, mechanism responsive to the typewriter keyboard for entering a selected value in a first value entry mechanism, a second value entry mechanism, means for transferring a value from the first to the second value entry mechanism, a first factor storing mechanism, a second factor storing mechanism means for transferring respective values from the second value entry mechanism to the first and second factor storing mechanisms, a plural order register, mechanism operable under control of the first and second factor storing mechanisms for entering 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 storage device, a plurality of normally disabled mechanisms for operating the typewriter numeral keys, a step switch 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 defined in claim 1, including means shiftable with the typewriter platen and operable in predetermined shifted positions thereof to automatically disable the keyboard with respect to the value entry mechanism.

3. A combined typewriter and calculator as defined in claim 1 including means for automatically clearing the first factor storing mechanism incident to the operation of the means which transfers a value from the second value entry mechanism to said storing mechanism.

4. A combined typewriter and calculator as defined in claim 1 including means carried by the platen carriage for initiating the operation of the step switch.

5. A combined typewriter and calculator as defined in claim 1 including means operable by the platen carriage when in a first predetermined position thereof for enabling the first factor storing mechanism with respect to the second value entry mechanism, and operable in a second predetermined position thereof for disabling said first factor storing mechanism and enabling the second factor storing mechanism with respect to the second value entry mechanism.

6. A combined typewriter and calculator as defined in claim 1 including selectively settable means to reverse the sequence of value transfer operations and first cause transfer of values from the second value entry mechanism to the second factor storing mechanism followed by subsequent transfer of values from said entry mechanism to the first factor storing mechanism.

7. A combined typewriter and calculator as defined in claim 1 comprising an ordinally arranged value storing matrix operable under control of the register to receive the value of the product standing in said register, a plurality of electrical circuits each including an ordinal portion of said matrix, a type operating solenoid in each of said circuits, and a stepping switch for energizing the ordinal circuits in seriatim to cause type-out of the product value.

8. A combined typewriter and calculator as defined in claim 7 including a storage register, means responsive to a product type-out operation for simultaneously entering the product in the first value entry mechanism, means for adjusting the second value entry device to the same value as that standing in the first value entry mechanism, means for selectively engaging the storage register with a drive mechanism, and mechanism for operating the storage register drive mechanism under the control of the second value entry mechanism.

References Cited in the file of this patent UNITED STATES PATENTS 2,084,445 Kottman June 22, 1937 2,403,005 Lake et a1. July 2, 1946 2,794,596 Ellerbeck June 4, 1957