US1901372A - Calculating machine - Google Patents

Description

March 14, 1933. H. LANDSIEDEL CALCULATING MACHINE Filed March 5l, 1924 5 SheecS--SheeI l WWWWMWMWMWWWMWW March 14, 1933. H. LANDSIEDEL 1,901,372

CALCULATING MACHINE Filed March 51, 192A 3 Sheets-Sheet 2 March 14, 1933. H. LANDSIEDEL CLCULATING MACHINE 1924 3 Sheets-Sheet 3 Filed MaICh 3l,

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Patented Mar. I4, 1933 UNITED STATES PATENT OFFICE HARRY LANDSIE'DEL, OF NORWOOD, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO REMINGTON RAND INC., OF NEW YORK, N. Y., A CORPORATION OF DELAWARE CALCULATING MACHINE Application filed March 31, 1924. Serial No. 703,101.

I This invention relates to calculating machines, and has special reference to mechanism for printing dates or other designations in connection with amounts that are listed by operation of the calculating machine.

An object of the invention is to provide a calculating machine with key mechanism operable to control the operation of the date printing devices independently of the usual numeral keys of the machinethat are used in setting up numbers for various calculations.

Another object of the invention is to provide mechanism for controlling the operation of the date printing devices so that said devices may be repeatedly operated to print a date repeatedly or successively after a single operation of the devices for setting up the date in the machine.

Another object of the invention is to provide means for protecting the date setting keys against accidental operation or -release so that the machine may be operated to print a date successively or repeatedly.

Another object of the invention is to equip a calculating machine with date printing devices the parts of which, except the differential controlling mechanism thereof, are duplicates of corresponding parts of the usual listing mechanism of the machine.

Another object of the invention is to provide a calculating machine with date or designation printing mechanism under control of the usual laterally movable paper carriage so that in certain predetermined adjusted positions of the paper carriage the date printing mechanism is operative and in other positions of the paper carriage the date printing mechanism is inoperative.

Other objects will appear from the following description, reference being made to the drawings in which l Fig. 1 is a longitudinal sectional view of a calculating machine embodying my present invention and showing various elements of the invention in side elevation.

Fig. 2 is a rear end view of the present invention embodied in a calculating machine.

Fig. 3 is a reduced plan view of the keyy board and certain of the operative parts of the machine.

Fig. 4 is an enlarged plan view of the key board with parts broken away.

Fig. 5 is a side elevation of the mechanism shown in Fig. 4, the case of the machine being shown in section.

Fig. 6 is a perspective view showing details of the key structure.

The adding and listing machine selected as the basis for the embodiment ofthe invention will be recognized as the Dalton adding machine in which the usual key levers 1 are operable to set up numbers in the differential mechanism 2 which limits operation of the racks 3 operatively connected with type carriers 4; type 5 being supported by the type carriers and driven in printing operations by hammers 6 set and released in the usual familiar manner to drive the type to make impressions upon paper fed to the type carriers by a platen 7 in a laterally movable paper carriage 8. The usual adding pinions 9 are shown. The racks 3 and type carriers 4 are suspended from a rock shaft 10 having arms 11 attached thereto supporting a transverse bail rod 12 for holding the type carriers and racks in their idle or normal positions. It is well known that the rocking of the main rock shaft 13 of the Dalton adding machine controls the machine proper and that, upon forward turning movement of said rock shaft, the bail 11-12 is swung downwardly and forwardly to permit forward movement of the type carriers and racks and upon return turning movement of the shaft 13 the bail 11--12 is operated to restore the type carriers and racks to their starting positions.

The machine in which the invention is shown will be recognized as a Dalton adding machine'in which the key levers 1 are ten in number, and in which the differential mechanism 2 is a carriage which moves from lower to higher denominational vorders when the key levers 1 are operated. Each key lever 1 may be operated to set up one or more digits in the differential mechanism.

The present invention is adapted and shown embodied in such a machine. Toward printing type carriers 4 forwardly to printing position. Except in selected lateral adjusted positions of the paper carriage 8 the slides 16 and the date or designation printing type carriers operatively connected therewith are held from movement to zero printing position by abutments 20 suspended from a shaft 21. Said abutments extend under projections 22 on the slides 16. A lever 23 is connected up with the abutments 2() and is actuated by a spring 24 in a direction to hold the abutments 20 in position to engage the projections 22 (Fig. 1). A bar 25 in the laterally adjustable paper carriage 8 supports one or more adjustable cams 26 arran ed to engage a roll 27 on the forward end of t e lever 23 and thereby depress the forward end of said lever and move the abutments 2O out of the way of the projections 22. The cam or cams 26 may be adjusted in different positions along the bar 25 to obtain desired variation in operation. rIhe printing hammers of the date or designation printing type carriers are operated and controlled in the same manner as the other printing hammers.

The differential mechanism for limiting operation of the date or designation printing type carriers is best shown in Figs. 4, 5 and 6. As there shown a plate 28 is attached to the forward end of the machine base 29 and supports the key and differential mechanism for controlling operation of the date and designation printing type carriers. A shaft 30 is supported by depending parts 31 of the plate 28. Each end of the plate 28' has an upward extension 32 (shown in Fig. 1 and broken away in Figs. 4 and 5) in which a shaft 33 is supported; Two sets of key le- Vers are pivoted upon the shaft 33, the set of levers 34 being used for printing the digits in tens denominational order in dates and other designations, and the levers 35 being used for printing the digits in units denominational order in dates and other designations. The key levers 34 are normally held in and after operation are returned to their raised positions by springs 36, and the key levers 35 are similarly controlled by springs 37. Each of the key levers 34 has an angular downwardvextension 38 (Fig. 6) similar to the angular downward extensions 39 of the key levers 35. The shaft 30 pivotally supports a latch plate 40 which extends under the forward ends of the key lever extensions 38. A similar plate 41 is supported by the shaft 30 and extends under the key lever extensions v39 and is upheld by a spring 42. Each of the plates 40 and 41 is provided with holes 43. When any key lever is depressed it lowers the corresponding plate 40 or 41 until the angular extension of the key lever enters one of the holes 43, after which the spring 42 raises the plate, which thereby latches the depressed key lever in its depressed position.

The plate 40 has a depending projection 44 over a lateral extension 45 of the plate 4l. This permits the plate 4l to be operated independently of the plate 40 and also causes operation of the plate 41 when the plate 40 is depressed byoperation of any one of the key levers 34. All of the key levers operate on the flexible principle, so that when any key lever of either series is depressed any previously depressed key of the same series will be released and returned to its raised position by its spring 36 or 37 as the case may be. Also, when any one of the key levers 34 is depressed any previously depressed key lever 35 is released. I

A slide 46 for the series of key levers 34 has pin in slot connection 47 with the plate 28, and a similar slide 48 for the series of key levers 35 has pin in slot connection 49 with the plate 28. The slides 46 and 48 are actuated forwardly by springs 5.0. A slide 51 is held on the slide 46 for lateral movements by connections 52, and a similar slide 53 is held on the slide 48 for lateral movements4 by connections 54. The slides 51 and 53 are movable transversely of the planes of movement of the type carriers and parallel with the shaft 10. The slide 5l has a series of projections 55 thereon for engagement with the angular extensions 38 of the key levers 34 when the machine is operated to print dates or other designations. The slide 53 has projections 56 for engagement with the angular extensions 39 of the levers 35. A lever 57 has pin in slot connection 58 with the slide 51 and at its rear end has operative connection 59 with the lower arm of a bell crank lever 60 (Fig. 2). The other arm of the bell crank lever 60 has operative connection 61 with the slide 16 in the highest or tens denominational order. A lever 62 has pin in slot connection 63 with the slide 53. The rear end of said lever 62 has operative connection 64 with the lower arm of a bell crank lever 65, the other arm of which has operative connection 66 with the slide 16 in the lower or units denominational order.

When the key levers 34 and 35 are held in their raised positions by the springs 36 and 37 the lever extensions 38 and 39- are in front of the line of movement of the projections 55 and 56 on the slides 51 and 53. This leaves the slides 51 and 53 free to move laterally toward each other, without obstruction by the extensions 38 and 39. s previously mentioned, the date or designation printing type carriers are held from effective movement at all times, eX- cept in predetermined lateral adjusted positions of the paper carriage in which one of the cams 26 holds the lever 23 depressed and thereby holds the abutments out of the line of movement of the projections 22. Even when the abutments 2O are held out of the way of the projections 22 the date or designation printing type carriers cannot movebeyond zero printing position, unless one of the key levers 34 be operated when the date or designations includes two digits and unless one of the key levers 35 be operated when the date or designation includes a vsingle digit. That is, if the date or designation to be printed is not more than 9, one of the key levers 35 is depressed. Thereafter, when the machine is operated to turn the shaft 13 forward and back and to swing the bail 11-12 forward and back, the date or designation printing type carrier in units denominational order is moved forwardly by its spring 19 until one of the projections 56 on the slide 53 contacts with the extension 39 of the lever 35 that had been depressed and held in its depressed position by the latch plate 41. The relationship of the key levers 35 representing the different digits is the same as the relationship of the type upon the date or designation type carrier in units denominational order. It is not necessary, nor is it always desirable that the type upon the date or designation printing type carrier be arranged in sequence as are the type upon the usual listing type carriers; but the type upon the date or designation printing type carrier is arranged so that when one of the projections 56 contacts with any designated key lever 35 the type that will be presented at the printing line will be the same as the type shown on the operatedl key lever.

The control of the slide 51 by the key levers 34 is the same as the control of the slide 53 by the key levers 35 as above described. When the date or designation includes two digits it is,Y of course, necessary to depress one of the key levers 34 which is latched in its depressed position by its latch plate 40. If the date or designation is 10, or 20, or for insta-nce, it is not necessary to depress any one of the key levers 35, since the date or designation printing type carrier in units denominational order will be stopped in Zero printing position by contact of one of the projections 56 with the zero stop 67 (Fig. 4). As it is understood that the operation of the type driving hammers 6 in lower denominational orders is controlled by the operation of a hammer or hammers in higher denominational orders, it is clear that when the hammer for the date or designation printing type carrier in tens order operates the hammer for the date or designation printing type carrier in units order will also operate. The zero stop 67 is pivoted on the shaft 33 and is engaged and controlled by a swinging bail comprising a rod` 68 carried by two arms 69 pivoted on the shaft 33 and normally upheld against the .under edges of the key levers by a spring 70. When any one of the key levers 35 is depressed the rod 68-is moved rearwardly a distance suicient to raise the lower end of the zero stop 67 above the plane of the slide 53, so that said slide may move into engagement with any one of the depressed key levers 35 without obstruction by the zero stop 67.

The slide 51 is also provided with azero stop 71 pivoted on the shaft 33. This stop 71 is engaged and controlled by a bail comprising a rod 72 and arms 73 swinging from the shaft 33. The rod72 is normally upheld against the under edges of the key levers 34 by a spring 74 in which position the Zero stop will prevent effective movement of the slide 51. When any one of the key levers 34 is depressed the supporting bail on the stop 71 is operated to raise the lower end of the stop above the plane of the slide 51.

The mechanism may be controlled so that the key levers 34 and 35 will be returned to their raised positions at each operation of the machine. For this purpose a lever 75 (Fig. 1) is pivoted upon a support 76 and has its forward end above the end of the latch plate 4() (Fig. 4), so that when the rear end of said lever 75 is raised the latchplate 40 will be released from any of the key levers 34 and .will also release the latch plate 41 from any ofthe key levers 35. A wipe pawl 77 is `upon the rear end of the lever "75 in line of movement of the projections 7 8 supported by a part 79 on the main rock shaft 13. The. spring 8O holdsthe wipe pawl 77 in position for cooperation with the projection 78, the

lug 81 on the wipe pawl engaging the lever 75. During forward turning movement of the rock shaft 13 the projection 78 operatesv the wipe pawl, 77 on; its pivot until the projection 78 passesIbweyondthe wipe pawl 77 without disturbing the lever 7 5. During rej turn movement of the rock shaft 13 the prof'-l `jection 78 by `engagement with the pawl 77 operates ythe lever 75 to release the latch plates 40 and 41 from the key levers 34 and 35.

In case it is desired to repeat the same date or designation the Wipe pawl 77 is moved to and retained in position in which it will not be engaged by the projection 78. This is accomplished by setting a bell crankflever 82.

The upper end of the bell crank lever extends through the key board plate of theymachine and the rear end of the lever extendsto position to engage the wipe pawl 77. `When the upper end of the lever 82 is moved forwardly the wipe pawl 77 will be moved to ak position in which it will not be engaged by the projection 78. A latch projection 83 on the upper arm of the lever 82 is engageable with notches 84 in the key board plate of the machine to positions.

hold the lever 82 in' its different adjusted Any error in setting the keys 34 and 35 may be corrected, or said keys may be released without operating the machine. For this purpose a key lever 85 is pivoted upon the shaft 33 and hasan extension 86 that engages and operates the latch plate 40 when said lever is depressed. The extension 86 acts upon the plate 40 to depress said plate in the same manner as the key extensions 38. The latch plate 40 will thereby be released from any of the key levers 34 and, because of the connections @1 -45, will also release the latch plate 4l from any of the key levers 35. The key lever 85 is held in its raised position by a spring 87.

When any of the key levers 34-35 are set and the lever 82 is set for repeating, said key levers 34 and 35 may be protected from being'accidentally released and so thatl no other keys may be depressed. For this purpose a cover 88 is pivotally supported by a pair of brackets 89 secured to the front of the machine. The cover 88 extends the full Width of the machine and in Fig. 5 is shown above the series of levers 34-35--85 so that d al1 of said leversare protected from accidental operation. When it is desired to expose the key levers it is only necessary to swing the cover 88 forwardly and downwardly out of the way.

The differential mechanism for controlling the date or designation printing type carriers is arranged in such cooperative relationship with the differential mechanism 2 that controls the usual listing type carriers of the machine, that the dates or designations will be printed 'in alinement with any items printed by the usual item listing type carriers and at the same operations. Of course, the hammers 6 that cooperate with the date -or designation printing type carriers do not carrier, a laterally movable paper carriage, a

device preventing operation of said type carrier, means controlled by the paper carriage for operating said device to position to permit operation of said type carrier, a diil'erential device for limiting movement of said type carrier, and a series of keys settable for engagement by said differential device.

2. A calculating machine comprising a number of type carriers, an actuator for each type carrier, a slide operated by each of said actuators, projections on said slides, a series of keys corresponding to each of said type carriers, means for latching said keys in set positions to be engaged by said projections, and means operated by one series of keys to re ease the other series of keys.

3. A calculating machine comprising type carriers, arranged in denominational orders, an actua-tor for each of said type carriers, differential stop devices for each of said type carriers, a series of keys for the type carrier of each denomination order, latches for hold ing said keys in set positions, and means operated by the keys for a type carrier in a higher denominational order for releasing the keys for the type carrier in the next adjacent lower denominational order.

4. A calculating machine comprising type carriers arranged in denominational orders, j

stops settable to limit movement of said type carriers, and means for unsetting a. stop for a type carrier in one denominational order as an incident to the setting of a stop for a type carrier in a higher denominational or- 5, The combination with a pivoted type carrier, an actuator for said type carrier, a differential device, keys for setting said diierential device, and connections operated by said actuator to cooperate with said 4differential device to limit extent of movement of said actuator and said type carrier, of a pivoted element for holding said actuator from effective movement, a support movable to different adjusted positions, and a part selectively settable on said support for operating said element in selected positions of said support to permit operation of said type carrier by said actuator.

6. A machine of the character described comprising a pivoted type carrier, an actuator for moving said type carrier, a slide operatively connected with said type carrier for movement in a diection transversely of the plane of movement of the type carrier and parallel with the axis of the type carrier pivot, a number of projections on said slide, and key controlled elements arranged in a row para l'el with the plane of movement of said slide settable to be engaged by said projections respectively to stop said type carrier in difierent printing positions.

7. A machine of the character described comprising a pivoted type carrier, an actuator for moving said type carrier, a slide operatively connected with said type carrier for movement in a direction transversely of the plane of movement of the type carrier and parstops to position to be engaged by said projections respectively, and latching means for holding said stops in position to be engaged by said projections.

8. In a calculating machine a type carrier, a shaft on which said type carrier is pivoted, a longitudinally movable slide, a link supported by and connecting said slide and said type carrier, an actuator for moving said slide and said type carrier, a lever operatively connected with said slide, an element operated by said lever in a direction parallel with the axis of said shaft, a number of projections on said element, stops movable to and from position to be engaged by said projections, respectively, keys for operating said stops, and means for holding said stops in position to be engaged by said projections.

9. A calculating machine comprising a units printing device, a tens printing device, a shaft on which said printing devices are pivoted, an actuator for each of said printing devices, a differential plate operatively connected with each of said printing devices for movement thereby in planes A parallel with the axis of said shaft, and stops for limiting movements of said plates, respectively.

10. A machine of the character described comprising a units printing device, a tens printing device, a shaft pivotally supporting said printing devices, a differential plate for each printing device movable parallel with said shaft and transversely of the planes of movement of said printing devices, a set of keys for cooperating with one of said r plates for stopping said plate in different positions, and another set of keys for stopping the other plate in its different positions.

11. A calculating machine comprising a pair of type carriers, a shaft on which said type carriers are pivoted, means for operating said type carriers, a slide operated by each of said type carriers parallel with said shaft, projections on each of vsaid slides, key levers, and means for latching said levers in position to be engaged by said projections.

12. A calculating machine comprising type carriers, a shaft on Which said type carriers are pivoted side by side, mechanism for operating said type carriers, a slide for each type carrier operated by said mechanism parallel with said shaft, projections on each of said slides, a set of key levers for each of said slides, a latch device for each set of key levers for holding said levers in position to be engaged by said projections, and automatic means for releasing said devices.

13. A calculating machine comprising type carriers, a shaft on Which said type carriers are pivoted side by side, mechanism for operating said type carriers, a slide for each type Icarrier operated by said mechanism parallel with said shaft. projections on each of said slides, a set of key levers for each of said slides, a latch device for each set of key 65 levers for holding said levers in positionio 15. A calculating machine comprising a I type carrier, a shaft on Which said type carrier is pivoted, a device for operating said type carrier, a slide operated by said device parallel with said shaft, a number of projections on said slide, and a series said slide settable to be engaged jections.

16. A calculating machine comprising a pair of type carriers, a shaft on which said type carriers are pivoted, an actuator for each of said type carriers, a slide operated by each of said type carriers parallel with said shaft, projections on each of said slides, a series of keys for each slide settable to be engaged by said proby said projections, means for holding said Y keys in their set positions, and means for releasing said keys.

17 A calculating machine comprising a number of type carriers, a shaft on which said type carriers are pivoted, an actuator for each type carrier, a slide operated by each actuator parallel with said shaft, projections on each of said slides, a series of keys corresponding to cach type carrier, and parts settable by said keys in positions to be engaged by the projections on the corresponding slide.

18.V A calculating machine comprising a number of type carriers, a shaft on which said type carriers are pivoted, an actuator for each type carrier, a slide operated by each of keys for Y actuator parallel with said shaft, projections 'latching devices for holding said parts in their set positions, and means for releasing said latching devices.

19. A calculating machine comprising a shaft, type carriers pivoted on said shaft in denominational orders, an actuator for each of said type carriers, a row of differential stop devices parallel with said shaft for each of said type carriers, a series of keys settable to cooperate with said stop devices to limit extent of movement of each type carrier, and latches for holding said keys in set positions. j

20. A calculating machine comprising a shaft, type carriers pivoted on said shaft in denominational orders, an actuator for each of said type carriers, a rou7 of differential stop devices parallel with said shaft for each of said type carriers, a series of keys settable to cooperate with said stop devices to limit extent of movement of each type carrier, latches for holding said keys in set positions, a device for releasing said latches during operation of said type carriers, and means operable at the will of the operator for releasing said latches While said type carriers remain unoperated.

21. A calculating machine comprising a shaft, type carriers pivoted on said shaft in denominational orders, an actuator for each of said type carriers, a row of differential stop devices parallel with said shaft for each of said type carriers, a series of keys settable to cooperate With said stop devices to limit extent of movement of each type carrier, latches for holding said keys in set position, and a device for releasing said latches as an incident to the operation of said type car-A riers.

22. A calculating machine comprising a shaft, type carriers pivoted on said shaft in denominational orders, an actuator for each of said type carriers, a row of differential stop devices parallel With said shaft for each of said type carriers, a series of keys settable to cooperate with said stop devices to limit extent of movement of each type carrier, latches for holding said keys in set position, a device for releasing said latches as an incident to theoperation of said type carriers, and means for preventing release of said latches, as desired. 4

` HARRY LANDSIEDEL.

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