US2042986A

US2042986A - Calculating machine

Info

Publication number: US2042986A
Authority: US
Publication date: 1936-06-02
Anticipated expiration: 1953-06-02

Description

CALCULATING MACHINE Filed June 8, 1952 3 Sheets-Sheet l 45 He- 50 isv .I-EI i A I i i June 2, 1936. HAASE 2,042,986

CALCULATING MACHINE Filed June 8, 1952 5 Sheets-Sheet 2 nn nuunnnn'u Irwenlvr, Richard Han/5e,

June 2, 1936. HAASE 2,042,986

CALCULAT ING MACHINE Filed June 8, 1932 3 Sheets-Sheet 3 1 Inventor;

FLCh/OJ CL Ext/ 6,

' Attorney Patented June 2, 1936 UNITED STATES PATENT OFFICE CALCULATING MACHINE Application June 8, 1932, Serial No. 616,134 In Germany September 3, 1931 14 Claims.

My invention relates to improvements in calculating machines, and more particularly in calculating machines in which the calculating mechanism comprises operating disks cooperating with 5 the registering mechanism and adapted to be shifted in axial direction for acting on the said registering mechanism. The object of the improvements is to provide a calculating machine of this type which has a high efficiency, which can 10 be manufactured at low cost, and which requires little room. With this object in view my invention consists in providing setting mechanism for the said operating disks which is simple in construction, and which is adapted to be operated by means of levers or slides acting thereon. Thus, a keyboard for operating the said setting disks is dispensed with. In order that the setting disks or slides have an eirlciency similar to that of keycontrolled setting mechanisms, and yet a ma- 0 chine is provided which requires little room and which can be manufactured at low cost, the following improvements are provided: For convenience in operation the setting levers are provided at the front side of the machine, and during the 5 calculating operation they are at rest, so that they may have the dimensions which are best suited for the operation thereof. The setting lovers are reset in the manner usual in key-controlled setting mechanisms by means of a reset- ?iJ ting key lever. The values set on the setting levers are transmitted to the operating disks in a similar way by means of cam members which project laterally from the setting levers. The said cam members may be riveted or otherwise secured to the setting levers. But preferably they are manufactured by bending the same from the bodies of the levers in lateral direction.

For the purpose of explaining the invention an example embodying the same has been shown in the accompanying drawings, in which the same letters of reference have been used in all the views to indicate corresponding parts. In said drawings,

Fig. 1 is a sectional elevation showing the machine,

Fig. 2 is a front elevation showing a part of the registering mechanism and the operating mechanism thereof,

Fig. 3 is a front elevation showing a part of the setting mechanism,

Fig. 4 is a sectional elevation on an enlarged scale showing the operating mechanism, the registering mechanism and the revolutions count- 55 ing mechanism,

Fig. 5 is a top plan view partly in section showing the revolutions counting mechanism,

Fig. 6 is a sectional elevation taken on the line 6-6 of Fig. 1 and showing the operating mechanism and the apparatus for locking the carriage in position,

Fig. 7 is a detail view showing the key lever and associated parts for setting the setting mechanism into initial position, and

Fig. 8 is a perspective view showing the crank shaft for driving the operating mechanism.

In the example shown in the figures the calculating machine comprises a casing l in which a carriage 2 is mounted. Within the casing the setting mechanism, the operating mechanism and the revolutions counting mechanism are mounted, and on the carriage 2 the registering mechanism is mounted. The carriage 2 comprises a front wall 3 and a rear wall 3'. The rear wall 3 is formed with lugs 14' guided in a rail 14 fixed to the side walls I of the casing I, and to the front wall 3 of the carriage 2 eyes 4 are secured which are shiftable on a rod 5 secured to the said side walls l The operating mechanism comprises a shaft 6 which is adapted to be rotated by means of a crank I (Fig. 8) or an electromotor through the intermediary of bevel gear wheels 8, 9. On the said shaft 6 operating disks l are mounted which are provided each with four teeth 10 I0 I0 I0 of different breadths, operating disks l I each comprising five teeth of equal dimension, and carrying disks I! each comprising two cranked teeth l3. For each order of the calculating machine one pair of operating disks l0 and II is provided, and. for each order except the highest a carrying disk I2 is provided. The carrying teeth [3 are displaced with relation to one another in circumferential direction, and they are disposed along two oppositely directed helical lines, as is described for example in U. S. Patent 1,467,198. The hubs of the carrying disks II are provided each with two slots which are engaged by the shanks of a U-shaped spring l9, which shanks are adapted to engage

circumferential grooves

20 and 2| made in the shaft 6, for locking the carrying disks in operative and inoperative positions. Between each pair of operating disks III and II a coiled spring [4 is located concentrically of the shaft 6, and the said spring is pressed together when the said disks are moved towards each other, and it tends to force the disks apart. The operating disks Ill and. H and carrying disks of each order act successively on an intermediate gear wheel I rotatably mounted and non-shiftable .in the cover 31 one for each order.

on a shaft I8 fixed to the carriage 2. The hub of the said intermediate gear wheel is made integral with a carrying tooth I1. The intermediate gear wheels I5 and the carrying teeth I'I connected therewith are held in position on the shaft I8 by means of rings 22 secured to the said shaft. The teeth of each intermediate gear wheel I5 are engaged by a pawl 'II acted upon by a spring 19, and all the said pawls II are rockingly mounted on a shaft I2. By the said pawls regular movement of the intermediate gear wheels I5 and the numeral wheels 23 cooperating therewith is insured. Each intermediate gear wheel I5 is in mesh with a gear wheel 24 connected each with one numeral wheel 23. The numeral wheels 23 are rotatable and non-shiftable-on a shaft 25 fixed to the side walls of the carriage 2 and carry-.- ing a crank 25 and they are held in position by rings 26 secured to the shaft 25.

At opposite sides of the operating disks I0 and II of each

order bails

29 and 30 are rockingly mounted on

pivot bolts

21 and 28 secured to the-side walls of the casing I. At their rear ends the said bails carry upwardly directed arms 3I and 32 which engage the outer faces of the disks III and II. At the sides facing the bails 30 the bails 29 carry wedge-shaped bevelled noses 33 which cooperate with laterally directed bevelled teeth 45 secured to or made integral with setting disks 35.

On a shaft 34 secured to the front parts of the side walls of the casing I setting disks 35 one for each order are rotatable and non-shiftable. Each setting disk 35 is provided with a finger piece 36 projecting outwardly through a slot of the cover 3! of the casing I, and to the margin of each 'disk a segmental plate 38 having the numbers from 0 to 9 made thereon is secured, so that the numbers set by means of the disks can readily be seen through peep holes 39 made To the bottom part of each disk 35 a toothed segment 40 is secured, the teeth of which are at a distance corresponding to the distance between the numbers on the segmental plate 38. The said teeth are engaged by pawls 4I rockingly mounted on a shaft 42 and normally elevated by

springs

43 and 44. The pawls M are adapted to be retracted from the teeth 40 by means of a key lever 52 mounted on the right hand side wall of the casing I, which key lever acts on a pin 55 secured to a plate 54 rockingly mounted on a pivot bolt 53 and extending over all the pawls 4|. When the plate 54 is depressed by the key lever 52 a bevelled finger I26 secured thereto shifts a slide I28 mounted in guide Ways I21 secured to the base plate of the casing I, which rail is acted upon by a spring I29 tending to shift the same to the left in Fig. 3 and towards the bevelled finger I26. At its top side the rail I28 carries lugs I39 one for each of the rockable bails 29, and each lug acts on a lug 29 of a bail 29. Therefore, when the slide I28 is shifted by the bevelled finger I26 the bails 29 are rocked about their longitudinal axes, so that the bevelled noses 33 carried thereby are brought out of the path of the teeth 45 of the disks 35. Each disk 35 carries nine teeth 45, and the said teeth are divided into two sets each comprising four teeth and helically projecting laterally from the plane of the disk, and a fifth tooth located between the said sets and in the plane of the disk. When a setting disk 35 is rocked by means of its finger 36 the teeth 45 thereof successively act on the nose 33 of the cooperating bail 29, thus rocking the said ball so that the arms 3I thereof move the cooperating disk I0 in opposition to the spring I4 into operative position. A segmental cam 46 is secured to the disk 35 at the side opposite to the ball 29, and when the said disk is rocked by means of the finger piece 36 the said cam acts on an arm 41 provided at the front end of the

bail

38,50 that the said arm is rocked and the cooperating disk I I is shifted into operative position relatively to the intermediate gear wheel I5.

Thus the rotary setting movement of the disk 35 causes displacement of the disks I0 and II through the intermediary of the teeth 45, the ball 29, the segmental cam 46 and the ball 30, whereby the desired value is set in the calculating machine.

The setting disks 35 are provided each with a laterally directed pin 48 which is acted upon by one end of a spring 50 placed on a sleeve 49 disposed concentrically of the shaft 34 and holding the setting disks apart. the said spring bears on a rod 5I fixed to the side walls of the machine casing. The springs 50 tend to return the disks 35 into initial positions.

To the front wall 3 of the carriage 2 a lug 56 is secured which is formed with a bevelled ,face 56 (Fig. 6). In the position of the parts shown in the said figure the said lug 56 bears on a collar 51 of a shaft 58 mounted in the side walls of the casing I and having a key lever 58 secured to the end projecting from the casing. The said shaft 58 is acted upon by a spring 59 tending to turn the same in clockwise direction, as viewed in Fig. 1, until a pin 58 secured to the shaft 58 engages a fixed stop I 43 provided on the right hand wall of the casing.

The shaft 58 carries a series of successively arranged noses 60 which are provided at one of their sides with bevelled faces, the distance between the said noses corresponding to the distance between the orders of the calculating machine.

On a pivot bolt 6I secured to the front wall 3 of the carriage 2 a pawl 62 is mounted which is formed with a bevelled bottom end, and which is acted upon by a spring 65 carried on a pin 63 secured to the wall 3 and bearing with its free end on a pin 64. The rocking movement of the pawl 62 in one direction is limited by a pin 66 secured to the wall 3.

On the bottom side of the carriage 2 there is a lug 61 to which one end of a coiled spring 69 is attached, which spring is trained on a roller 68 and attached. with its opposite end to the right hand side wall of the machine casing I.

To the rear wall of the carriage 2 a rack I3 is secured which is in engagement with a gear wheel I5 mounted on a rail 14 secured to the side walls of the machine casing I. The said gear wheel 15 is in mesh with a second rack I6 shiftably mounted on a rod 'II supported at its ends on the side walls of the casing. The rack I6 is connected by an arm I8 with a sleeve 8i shiftable on a shaft I9, rotary movement of the said sleeve being prevented by a longitudinal groove of the said shaft engaged by the sleeve, and the sleeve carries a single tooth 82. The shaft I9 is adapted to be rotated from the shaft 6 through the intermediary of

gear wheels

83, 83 84, 85, 86. By shifting the carriage 2 the single tooth 82 is successively brought into position for engagement with gear wheels 81 connected with numeral wheels 89 carrying two series of numbers. The said gear wheels and numeral wheels are rotat- The other end ofable and non-shiftable on a shaft 88 provided with a crank 88 The said gear wheels 81 are engaged by pawls I34 mounted on a shaft I fixed to the side walls of the casing I. The said pawls are acted upon by springs I3 I, and they are guided in slots I32 of a curved guide plate I33. By the said pawls regular movement of the wheels 81 and the numeral wheels 89 is insured. In a longitudinal groove of the shaft 88 a key 9| is longitudinally shiftable, and the said key carries lugs 92 which are adapted to engage lugs 90 provided internally of the numeral wheels 89 (Fig. 5) The lugs of the key 9| are normally held out of engagement with the lugs 90 of the numeral wheels by a spring 94 acting on the key 9I and bearing on a fixed shoulder 93 of the shaft 88. At the end opposite to the spring 94 the shaft 88 carries a cam 95 which is held by the spring 94 in engagement with a cam disk 96 fixed to the side wall of the casing. The shaft 19 is adapted to be rotated by gear wheels driven from the shaft 6. To the shaft 19 a sleeve 91 is secured which is formed with an arm 99 formed with a notch 98 (Fig. 1). By means of the said notch a slide I04 is shifted into position for opening or closing peep holes associated with the revolutions counting mechanism, and it is adapted to be brought into engagement with two teeth I00 of a disk IOI mounted on the shaft 88 (Fig. 5). At the side opposite to the teeth I00 the said disk IOI carries a cam I02 which is engaged by a pin I03 of a slide I04 provided with peep holes, which slide is guided by means of slots I05 provided at the ends thereof on pins I06 secured to the side walls of the casing. A spring I01 attached to one of the side walls of the casing and to the slide I04 holds the pin I03 in engagement with the cam disk I02.

On the shaft 88 of the revolutions counting mechanism a gear wheel I08 is loosely mounted which is in mesh with the gear wheel 88 mounted on the shaft 19. The gear wheel I08 is in driving engagement with a second gear wheel I09 fixed to a shaft IIO which is parallel to the shaft 88, and which forms a part of the carrying mechanism of the revolutions counting mechanism.

The hub I I I of the gear wheel I09 is formed with a cam face II2 which is engaged by a lug II3 of a key I I5 slidable in a longitudinal groove II4 of the shaft IIO, a spring II1 bearing on a ring H6 fixed to the said shaft and holding the lug I I3 in engagement with the cam face. The key H5 is formed with lugs II8 engaging each in a longitudinal slot of a hub I20 connected with a carrying disk I I9. Each carrying disk I I9 is provided with a tooth I2I, and when the said carrying disk is shifted by a tooth I22 provided on the corresponding numeral wheel 89, the said tooth I2I is brought into position for engagement with the gear wheel 81 of the numeral wheel 89 of the next higher order. The carrying disks II9 are locked in operative and inoperative positions by springs I23 embedded in slots of the hubs I20 of the said disks and engaging in either one of two circumferential grooves I24 and I25 of the shaft IIO. To a block I36 rising from the base plate of the casing I a pivot bolt I31 is secured on which a lever I38 is rockingly mounted, which is normally held by a spring I39 in engagement with a fiat face on a collar I40 of the shaft 88. On the shaft 85 of the intermediate gear wheel 85 a similar collar MI is mounted which has a fiat face and so likewise provides a stop for limiting the movement of the lever I38.

The operation of the calculating machine is as follows:

If it is desired to set a value in the machine for making a calculation, the setting disks 35 corresponding to the places of the number are operated by means of the finger pieces 36 in opposition to the springs 50, until each disk displays its number through the corresponding peep hole 39. One of the numbers to be set by means of a. disk 35 maybe the figure 9, and when the said disk is operated at first the four helically displaced teeth act on the corresponding nose 33 of the bail 29. Thereby the said bail is rocked, so that the arms 3I thereof shift the corresponding operating disk I0 with the teeth I0 to I0 into operative position relatively to the intermediate gear wheel I5. Upon further operation of the disk 35 to the fifth tooth which is located in the plane of the disk 35, the nose 33 and the bail 29 are released, and the previously compressed spring I4 returns the disk I0 to the right and into initial position. Simultaneously the cam face 46 of the setting disk 35 rocks the arm 41 and the bail 30 to the right, so that the arms 32 shift the disk II provided with five teeth into operative position relatively to the intermediate gear wheel I 5. During the further rotary movement of the disk 35 to the end of the slot provided therefor in the cover 31 the cam face 46 holds the disk II in operative position, and simultaneously the upper set of four helically arranged teeth 45 of the disk 35 shifts the disk I0 to the left. Now both disks I0 and II are in the position for transmitting the number 9" to the registering mechanism.

After the desired value has been set in the,

setting mechanism the shaft 6 of the operating mechanism is turned by means of the crank 1, and the values set on the disks I0 and II are transmitted to the corresponding intermediate gear wheels I5 and through the intermediary of the gear wheels 24 to the numeral wheels 23. When a numeral wheel passes from nine to zero, the single tooth I1 of the intermediate gear wheel I5 cooperating therewith acts on the bevelled face of the carrying disk I2 of the next higher order and shifts the said disk to the left in Fig. 2, the spring I9 locking the disk in position being transmitted from the groove 29 of the shaft 6 into the adjacent groove 2I. Upon the rotary movement of the shaft 6 the carrying pin I3 fixed to the disk I2 advances the intermediate gear wheel I5 of the next higher order one step, whereby the carrying operation is completed.

The rotary movement of the shaft 6 is transmitted by the

intermediate gear wheels

83, 83 84, 85 and 86 to the shaft 19 on which the single tooth 82 is shiftable, and after each complete rotation of the shaft 19 the said single tooth advances the gear wheel 81 and the numeral wheel 89 connected therewith one step.

When a numeral wheel 89 of the revolutions counting mechanism passes from nine to zero, the carrying pin I22 provided on the said disk shifts the bevelled carrying disk mounted on the shaft III) and located in its path to the left in Fig. 5, so that the spring I23 thereof is shifted from the groove I24 into the adjacent groove I25, and the carrying tooth I2I gets into position for engagement with the gear wheel 81 of the next higher order for imparting carrying movement thereto.

At the beginning of the rotary movement of the shaft 6 in clockwise direction the arm 99 secured to the shaft 19 shifts the disk IOI on the shaft 88. -But when the revolutions counting mechanismhas before been reset the cam I02 does not act on the pin I03 fixed to the slide I04. If however the shaft 6 is turned in the opposite direction, that is anti-clockwise, the disk IN is rotated so that the cam I02 shifts ..the pin I03 to the left in Fig. 5 and in opposition to the spring I01. Therefore the peep holes of the slide I04 display the left hand series of figures made on the disks 89, which are preferably printed in red.

At the beginning of the rotary movement of the shaft IIO which is likewise rotated from the shaft 6 the lug II3 of the key II5 slides on the cam face H2, and the spring II'I shifts the said key to the left. Therefore the lugs of the said key are retracted from the notches of the hubs I20 so far that the tooth I22 of a numeral wheel 89 passing from nine to zero and thus starting a carrying operation is able to shift the said carrying disk to the left. Slightly before the end of a rotary movement of the shaft I I0 the key I I5 slides on a bevelled face of the sleeve I I I, and it is shifted thereby to the right. Therefore all the carrying disks which have performed a carrying operation, and which therefore had been shifted on the shaft IIO to the left, are returned into initial position.

The setting disks 35 are returned into initial position by means of the key lever 52, which acts through the intermediary of the plate 54 on the free ends of all the pawls 4| and rocks the same, in opposition to the

springs

43 and 44, out of engagement with the teeth of the segment 40. By the downward movement of the plate 54 also the slide I28 is shifted, and therefore the noses I30 rock the bails 29 and shift the noses 33 out of position for engagement with the teeth of the disk 35, and the springs acting on each disk 35 return the disks into their initial positions.

The numeral wheels 89 of the revolutions counting mechanism are returned into initial position by means of the key 9I carried by the shaft 88. When the said shaft is rotated the lug 95 slides on the projecting margin of the cam disk 96, and the key 9I is shifted so that the lugs 92 carried thereby get into position for acting on the lugs 90 provided internally of the numeral wheels 89, so that the said numeral wheels are carried along by the shaft 98 and returned into initial positions. During the said return movement of the wheels 89 the concentric portion of the collar I40 fixed to the shaft 88 acts on the levef I38 and rocks the same into engagement with the flat face of the collar I4I, so that rotary movement of the wheel 85 and the driving members connected therewith is prevented.

The numeral wheels 23 of the registering mechanism are reset by means of the crank 25' fixed to the shaft 25.

The carriage 2 is adapted to be shifted from the left hand end position shown in the figures into a position corresponding to the next higher order by means of a finger piece I42 fixed thereto (Fig. 6). When the carriage is thus shifted to the right, the cam face 56 of the lug 56 fixed to the said carriage engages a nose 60 carried by the shaft 58. Thereby the said nose is lifted against the action of the spring 59 until the nose releases the lug and the spring 59 returns the shaft 58 into initial position. The spring 69 fixed to the carriage holds the lug 56 in contact with the rear face of the said nose 60, so that the carriage 2 is locked in shifted position. For

returning the carriage from the position of higher order into initial position or into the position or the next lower order the key lever 58 is depressed. Thereby the shaft 58 is rocked sothat the noses 60 are retracted upwardly and out of 5 I the path of the lug 56, and the spring 69 is free to shift the carriage to the left. The. pawl 62 which is rockingly mounted on the slide 2 permits only intermittent return movement, because the noses 60 which have been lifted by the rotary movement of the shaft 58 have been brought into position for engaging the bottom end of the pawl 62. Whenever the said pawl 62 is engaged by one of the noses 60, the pawl is rocked in opposition to the spring 65 acting thereon, until its 15 rear face bears on the stop 66 and further movement of the slide is prevented. If thereafter the key lever 58 is released, the shaft 58 returns into initial position, and the nose 60 bearing on the pawl 62 releases the said pawl, so that the spring 69 can move the carriage a small length of way to the left, until the lug 56 bears on the rear side of the next nose located in its path. This operation is repeated whenever the key lever 58 is depressed, until the lug 56 is again in engagement with the collar 51.

I claim:

1. In a calculating machine having registering mechanism and calculating mechanism comprising a pair of operating disks adapted to be shifted 30 in axial direction into position for cooperation with an element of the registering mechanism, the combination of a setting lever provided at its sides with setting members, said lever being mounted for oscillation on a horizontal axis in a 35 plane parallel to those of the operating disks, and mechanism intermediate said setting lever and operating disks for transmitting setting movement from said setting lever to said operating disks.

2. In a calculating machine, having registering mechanism and calculating mechanism comprising a pair of operating disks adapted to be shifted in axial direction into position for cooperation with an element of the registering mechanism, the combination of a setting lever swingable about a horizontal axis and having setting members bent laterally from the body thereof said bent setting members corresponding to a series of numerals, and mechanism located between said setting lever and said operating disks including elements movable step-by-step laterally by said bent members for transmitting setting movement from said setting lever to said operating disks. 55

3. In a calculating machine having registering mechanism and a pair of rotary operating disks for actuating an element of the registering mechanism, the combination of a setting lever oscillatory about an axis parallel to that of the operating disks, said setting lever having a plurality of positions corresponding to a series of numerals, operating devices extending laterally from said lever, and means actuated by said operating devices for shifting the operating disks in the di rection of their axes.

4. A device as in claim 3, said lever being made of sheet metal and said operating devices including integral laterally bent parts of said lever.

5. In a calculating machine having registering mechanism, a pair of rotary operating disks shiftable axially into operative engagement with an element of said registering mechanism, and rockable bails forshifting said disks, the combination of a horizontal shaft, and a manually operable lever on said shaft for rocking said balls.

6. In a calculating machine of the type having a pair of operating disks shiftable axially to engage an element driven by said disks, one of said operating disks having four laterally stepped teeth and the other having five radial teeth, springs holding said disks in inoperative position, and rockable bails having fingers for shifting said disks, the combination of an oscillatory setting lever located between a pair of balls, said setting lever having teeth stepped laterally from one face, an arm on an adjacent bail located for engagement by said teeth for rocking said bail to shift the four-toothed disk progressively, scale means for indicating the extent of movement of the setting lever, and means on the other face of the setting lever for rocking the bail adjacent thereto so as to shift the five-toothed disk.

'7. A device as in claim 6, the teeth on the setting lever being divided into two sets of four each, said sets being spaced apart to permit release of the four-toothed disk from the element driven thereby, the means on the other face of the setting lever being positioned to shift the corresponding five-toothed disk into operative position at such time.

8. In a calculating machine of the type having a pair of operating disks shiftable to engage an element to be driven by said disks, one of said disks having four laterally stepped teeth and the other having five radial teeth, springs tending to move said disks into inoperative position, and a pair of rockable bails for shifting respectively. a four-toothed disk and a five-toothed disk, the combination of a setting lever between said bails, means on said setting lever for progressively shifting the four-toothed disk to vary the number of teeth so rendered operative, means on the lever for then shifting the five-toothed disk, means for returning the four-toothed disk to inoperative position, and means on the setting lever for again shifting the four-toothed disk progressively by further movement of said setting lever.

9. In a calculating machine having registering mechanism, a pair of coaxially mounted axially shiftable operating disks for actuating an element of said registering mechanism, and means normally holding said disks out of engagement with said element, the combination of a manually operable setting lever mounted for oscillation about an axis parallel to that of said operating disks to any one of a plurality of predetermined positions, and means controlled by the positions of the setting lever for determining the positions of the setting disks.

10. A device as in claim 9, including laterally 5 offset teeth on said lever, said determining means including rocking bails for moving said shiftable disks, and an arm on one bail positioned for engagement by the lateral teeth of said setting lever for moving the corresponding shiftable disk to varying degrees.

11. In a calculating machine, a driven element,

a rotary operating member for driving said element, and stepped lateral teeth on said operating member, the combination of means for shifting the operating member laterally including an oscillatory setting member on an axis parallel to that of the operating member, stepped lateral projections on said setting member, and means for shifting the operating member progressively in accordance with successive positions of the setting member.

12. In a calculating machine, a disk having on one face two spaced sets of teeth which areprogressively stepped laterally thereof, and having on its other face a cam spaced from said face of said disk, said cam being spaced from said teeth in a direction circumferentially of said disk and having its forward end inclined away from said disk.

13. In a calculating machine including a gear and a pair of operating disks shiftable axially into position to rotate said gear, a setting lever mounted for oscillation in a plane parallel to the planes of rotation of the operating disks, setting members extending laterally from said setting lever, and means between said setting lever and said operating disks operable by said setting members to shift said operating disks axially upon oscillation of said setting lever.

14. In a calculating machine including a gear and a pair of operating disks shiftable axially into position to rotate said gear, a setting lever mounted for oscillation in a plane parallel to the planes of rotation of said operating disks, setting members extending laterally from said setting lever, and means between said setting lever and said operating disks operable by said setting members to shift said operating disks axially upon oscillation of said setting lever.

RICHARD HAASE.