US1010849A

US1010849A - Calculating-machine.

Info

Publication number: US1010849A
Application number: US64075311A
Authority: US
Inventors: Ernest J Brasseur
Original assignee: AB Dick Co
Current assignee: AB Dick Co
Priority date: 1911-07-27
Filing date: 1911-07-27
Publication date: 1911-12-05
Anticipated expiration: 1928-12-05

Description

E. J. BRASSEUR.

CALOULATING MACHINE.

Prummel FILED JULY 21, 1911.

1,010,849. Patented Dec. 5, 1911.

4 SHEETS-SHEET 1.

wVrNEssEs; @En 1L keq y" ATTRNEYS E. J. BRASSEUR.

GALGULATING MACHINE.

APPLICATION FILED JULY 27, 1911.

Patented Dec. 5, 1911.

4 SHEETS-SHEET 2.

ATTORNEYS E. J. BRASSEUR.

GALGULATING MACHINE.

ArPLIoATIoN FILED JULY 27, 1911.

1,010,849, Pate-nted Dec. 5, 1911.

4 SHEETS-SHEET 3.

WITNESSES:

imi

E. J. BRASSEUR.

CALGULATING MACHINE.

APPLICATION FILED JULY 27, 1911.

Patented Dec. 5, 1911.

4 SHEETS-SHEET 4.

ATTORNEYS UNITED STATESv PATENT ormone.

ERNEST J. BRASSEUR, F CHICAGO, ILLINOIS, ASSIGNOR T0 A. B. DICK COMPANY', OI

'CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.'

CALCULATTNG-MACHINE.

T0 all whom t may concern:

Be it known that I, ERNEST lJ'. BnAssnUR,

` a subject of the King of Belgium, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Calculating-Machines, of which the following is a specification.

This invention relates to calculating machines, and particularly to machines for this use of the type known as key-set machines hf l The invent-iony is directed to the provision of certain improvements in machines of this character with respect particularly to the clearing mechanism whereby the numberwheels are returned to the zero posit-ion.l the repeating mechanism for use in multiplying, and mechanism which may be termed a shock-absorber for controlling the movement of the slide-bars so that the noise incident to the operation of the machine is reduced and the action of the keys is much lighter. l y

The invention is susceptible of use in calculating machines of various types, but is adapted particularly for use iny connection 'with machines of the t-ype illustrated and described filed by `me March 27, 1911, and serially numbered 617 ,010.

The preferred embodiment. of the invention is illustrated in the accompanying drawings, in which- Figure l is a top View of the machine,

broken away and sectioned in part; Fig. 2

is a top view of one of the denominational units; Fig. 3 is a central section of the machine on line 3-3 of Fig. l1; Fig. 4 is 'an elevation of one of the units; Fig. 5 is a section of the machine on line 5 5 of Fig. 1;

Figs. 6 and 7 are detail views of a portion,l

of the mechanism employed in multiplying; Fig. 8 is a section of t e machine on line 8-8 of Fig. 1; Fig. 9 is a detail view of one end of one of the units, certain of the parts being shown in section; Fig. 10 is a transversel section kof one of the units; Fig.

11 is a detail view of one of the numberwheels; and Fig. 12 is a sectional detail view of the clearing mechanlsm.

The calculatingw machlne shown 1n the drawings is of the character known as akey-set machine, wherein the depression of keys positions certain of the operating Specification of Letters Patent. Application led July 27, 1911. Serial No. 640,753.

in an application for patent` Patented Dec. 5, 1%11.

parts of the machinein accordance with the value of the keys depressed, and thereafter an operating device is moved manually or otherwise to cause the number-wheels oi the machine to -be actuated an. amount depending upon the extent of movement ot the parts positioned by the depression of the keys. A plurality of rows of keys are provided, as many rows as the number of numerical orders in which it is desired tb operate, each row comprising nine keys numbered from 1 to 9, or ten keys, inwhich latter case a zero key would be included. One key in each row may be depressed for each operation, and when that key is depressed it is locked in its depressed position and the other keys are locked against depression. When a key in a row is depressed, it permits a slide-bar corresponding to that row yto move in the direction of its length a distance corresponding to the value of the key depressed, and as this slide-bar moves thus it carries a vpawl around upon a differential lt-hus are turned to their initial positions,

moving their gear-wheels with them, and the gear-wheels cause corresponding vrotation of the number-wheels, which either indicate the result of the operation or are positioned for print-ing the result upon a suitable paper strip. In combination with these parts, a carrying mechanism is employed, whereby any one of the mechanisms can cause the mechanism of the next higher order to ad- Vance one unit. i

In the preferred embodiment of the machine, each row of keys, the Slide-bar connected therewith, the number-wheel actuated on the return of the slide-bar to its initial position, and the carrying mechanism corresponding to thaty number-wheel, are all mounted on a single support, so that all of these arts for one numerical order may be assem led on the support and thereafter a suitable number of these units may be secured together in the casing of the machine. Fi 1 shows a machine having eight of ticse units, the units being constructed as illustrated in Figs. 2, 4: and 10. Each unit consists of a support 1.of sheetmetal having one end 2 bent to form a ,t key normally in the upper position.

spacer for separating adjacent units the required distance. Each unit has a row of ten keys, 8, mounted thereon for vertical reciprocatory movement, these keys being .numbered respectively Jfrom 0 to 9. Each key has a slot [formed in its stem, through which extends a st-ud 4 on the support 1. A spring 5 is secured at one end to the key and at the other to the stud for holding the A swiveling slide-bar 6 is mounted tor lengthwise movement in the projection 2 and a similar projection 7 on the support 1, this bar being adapted to move lengthwise and also to turn in the openings in the parts 2 and 7. The slide-bar has openings therein of progressively increasing length, and the lower end 8 of 'each key from 2 to 8 is adapted to be projected through one of these openings when the key is depressed. Also, when any one of the keys except the zero key is depressed, a lateral projection 9 at the lower end thereof'is adapted to engage the slide-bar 6 and rock that bar in its bearings against the tension of a spring 10. Secured to the slide-bar, is a rod 11, which is connected by a spring 12 to the projection 2, and on the projection 2 is a stud 18. Vhen the slidesbar is in its normal position, as shown in Figs. 4 and 10, its end is in engagement with the end of stud 13 and the slide-bar is held against lengthwise movement actuated by spring 12; but when, on the depression of a key, the slide-barv is rocked by a projection 9 on the key, the slide-bar is released from engagement with the end of stud 18 and is then moved in the direction of its length by the spring 12. In the case of the depression of any key from 2 to 8, this lengthwise movement of the bar is arrested by the engagement of the lower end 8 of the key with the end of the opening in the slide-bar through which that key is projected. The key number 9 has no projection 8 on its lower end (Fig. 4), but is provided with a lateral projection 9 for turning the slide-bar 6, and when this key is depressed the slide-bar moves in the direction of its length under the influe-nce of spring 12 until the wall of the slide-bar, which normally engages the end of stud 18, comes into engagement with the projection 2. No opening in the slide-bar is provided for the key number 1, but the projection 8 at the lower end of this key is adapted to arrest lengthwise movement of the slide-bar by engaging with the end of the lower Vwall of the slide-bar. On each key is a projection 14 extending laterally in a direction opposite from the projection 9. The slide-bar is provided with a flange 15 at its upper edge. The lower wall of the slide-bar is engaged by the lateral projec tion 9 of a key after the lateral projection 14 has passed below the flange 15, and when the slide-bar is. rocked in its bearings by the projection 9 of a key the liange 15 will be carried over the projection 14 of that key so as to hold the key7 in a depressed position until the slide-bar has been rocked back to normal position. Also, when the slide-bar is rocked by the depression of a key, the

liange 15 is carried under the projections 14 on all the other keys of the row, so that it will serve to preclude depression of any one of such keys. The spring 10 for rocking the slide-bar in its bearings is connected at one end to a tang on the slidebar and at the other to the rod 11. On the support 1 is a stud 1G of a length corresponding to the lateral projection 2 and serving as a spacer tor separating the unit from the next adjacent one the required distance. This stud forms a pivot for a gear 17, and also for a pawl-carrying lever 18 on which a pawl 19 is pivotally mounted. The pawl has a pin 2O thereon, passing through a slot in the lever 18, and a spring 21 connects this pin to a stud on the lever 18, so that the spring tends to turn the pawl on its pivot in a direction to carry the tooth of the pawl into engagement with the teeth oi the gear 17. The tooth of the pawl is so shaped that the pawl will slide over the teeth of gear 17 when turning about stud 16 in a clockwise direction, but when the pawl is moving in the opposite direction it will carry gear 17 with it. pivotally connected at 22 to the end of bar 11, so that when a key is depressed and the slide-bar, together with the bar 11, is moved in the direction of its length,the pawl18 will be carried around gear 17 a distance commensurate with the value of the key depressed, but during such movement the gear 17 will not be actuated, as such movement of the gear is obstructed by a detent 23 pivotally mounted upon the support 1 and pressed into engagement with the gear by a suitable spring. A suitable number of units thus constructed are assembled side by side in a casing, as shown in Fig'. 1, the several units being secured together by tiebars passing through openings in the supports 1. In Fig. 1, eight such units are shown, the two at the right being for units and tens of cents, and the siX units at the left being for dollars.

The setting otl the parts for an operation consists in depressing a key in one or irore of the rows and thereby moving the pawls corresponding to those keys about the gears 17, with which the pawls coact, distances dependent upon the values of the depressed keys. Thereafter the operating device of the machine is actuated to return all ot the pawls 19 to their initial position, in which position the pawl in Fig. 4 is shown, thereby actuating the gears 17 amounts commensurate with the values of the depressed The pawl-carrying lever 18 is keys in the rows corresponding respectively to the several gear-wheels.

The operating device of the machine consists of a handle 24 (Figs. 1 and 5), which is pivotally mounted upon a stud 25 in axial alinement `with the several studs 16 oli the units. The lower end of the operating handie is extended to form a sectorgeard At the opposite side of the machine, a similar sector-gear Q7 (Fig. 8) is pivotallyf' mounted in axial alinement with handle Q4 on a stud extending between the side-traine oi' the machine and an eent plate 28 (Fig. 1). These two sectorgears mesh with pinions 29 carried by a shaft 30, which is rotatable in bearings formed in the side-frames of the machine. The two sector-gears 26 and 27 have brackets secured thereto, which carry an operating rod 31. This rod extends across the irachine and is adapted to engage all of the pawl-carrying arms 18, so as to move those arms from the positions to which they were moved in setting up a number back to their normal positions as indicated in Fig. 4. The normal position of rod 31 is shown in Figs. 3 and 8. When the operating handle 24 is moved, rod 31 is carried around in a counter-clockwise direction, as seen in Fig. 8, and in so moving it engages all of the -pawl-carrying arms 18 which have been moved in setting up a number, so as to move those arms with it, but just before engaging any one o1 the pawl-carrying arms 18 the rod moves over f the pawl19 carried by that arm, so as to hold the pawl in engagement with. its corresponding gear-wheel 17. By reason of the gear connections between the two sectors 26 and 2 7 through the shaft 30, the two ends of rod 31 are compelled to move in unison. The direction of the forward stroke of the operating lever is indicated by the arrow in Fig. 5, and this movement of the lever is tifected against the tension of a spring 32 connected at' one end to arm 24 and at the other end to the adjacent side-frame. When lever Q4 has complet-ed its stroke in this direction, it is returned to its initial position by spring 32. A full stroke of the operating arm in both directions is insured by a pivoted spring-actuated lever 33 (Fig. 5) coactingwith teeth 34 on lever 24.- el` If a mistake be vmade in setting up al number, correction can be made as follows z-Pivotally mounted on each stud 16,

is a plate. 35' (Figs. 4 and 9) having a sec.

pins 37 on the support 1 pass.

tor-gear formed thereon, the teeth of which] are adapted to be engaged byfteeth on a slide 36 provided with slots through which A spring 38 normally holds the slide 36 in the position in which it is shown in Fig. 9. Secured to R5 the plate 35 is an arm 39, the upper end Vhen the slides so move, the teeth thereon engage the teeth of the sectors 35.- and thus carry the ends of arms 39 into'engagement with the pins 2O on pawls 19. The inclined ends of arms 39 act upon the pins 29 so as to turn the pawls 19 on their pivots suiiicient to carry the teeth of the pawls out of engagement with the gears 17, and when such turning movement of the pawls is arrested by the pins 20 engaging the ends of the slots through which they pass further movement oi' arms 39 about the studs 16 carries the pawl-carrying arms 18 and theY pawls carried thereby baclr to their initial posit-ions. When such positions are reached, the springs 10 acting upon the slide-bars rock the slide-bars so that they will be held against the tension oil their springs 12, as before described. On releasing the key 41, the several slides 36 and the bail 40 are returned to Vtheir initial positions by the springs 38.

A repeat-key is provided for use in multi plying, as shown at 43 'in Fig. 8. Referring to Figs. 6 and 7, each of the studs 13 for holding the slide-bars against lengthwise lnovement, has a plunger 44 therein actuated by a spring 45 to carry its end beyond the end of stud 13. The plungers 44 are normally held with their"ends flush with the ends 'of studs 13 by a bail 46 pivotally mounted at 47 upon the side-frames of the machine, A spring 49 is connected at one end to the bail 46 and at the other to a stud on the side-frame, and normally holds the parts in the positions in which they are shown in Figs. 3 and 6, with the plungers 44 in the retracted position. By depressing the repeat-key 43, a lever 48 pivoted on the side-frame is rocked, so as to turn bail 46 on its pivots 47 against the tension of spring 49, and the plungers 44 are then moved forwardly to the position indicated in Fig. 7, in which-their ends project beyond the ends of the studs 13. When the plungers 44 do so project, the operating khandle may be operated any desired number of times without' causing the slide-bars 6 to be retained in their initial position when they are movedforward to those positions, as the eifective .length of the studs 13 is increased by the plungers'44 and the walls of the slide-bars which normally engage the ends of studs 13 will not be carried far enough to pass the 'ends of the plungers 44. Therefore,during radial yvall, as shown in Fig. 11.

the return movement of the operating handle, the slide-bars will return to the positions to Which they were moved in setting up the number, in which positions they Will be arrested by the depressed keys, the keys depressed being retained in their depressed positions by the flanges 15 on the slide-bars coacting with the lateral projections 14 on the keys.

Each gear-Wheel 17 meshes with a pinion 50, to which is secured a number-Wheel 51, the periphery of which is provided With numbers from zero to 9 inclusive, which numbers are adapted to be exhibited through openings in the casing of the machine, as shown in Fig. 1. All of the pinions 56 With their number-Wheels are loosely mounted upon a shaft 54, which extends across the machine and to which the number-Wheels may be locked when necessary to reset the number-Wheels at the zero position. On the side of each number-Wheel is pivotally mounted a lever 160 (Figs. 4 and 11), and a spring 161 is connected at one end to the free end of this lever and at the other to a stud on the number-Wheel. Shaft 54 has a plurality of notches therein, one for each number-wheel, each of which notches has one Each lever 160 has a tooth thereon which is adapted to be received in the corresponding notch in the shaft 54. On the end of shaft 54, is secured a pinion 162, meshing with a sectorgear 163. This gear is also provided With teeth 164, Which mesh with the teeth of a gear 165 loosely mounted upon the shaft 36. This gear 165 has a ipa-wl 166 pivotally mounted thereon and acted upon by a spring 167 to carry its tooth into engagement with a tooth 168 secured upon the shaft 30. A. latch 169 is also pivotally mounted upon gear 165 and normally holds the pavvl 1.66 out of the path of movement of the tooth 168 against the tension of spring 167. The latch 169 is acted upon by a spring 173 to hold it normally in the position in which it is shown in Fig. 12. A clearing-key 170 is mounted for vertical reciprocating movement. upon the side-frame of the machine, it being held normally in a raised position by a spring 171. The lower end of the stem of this key is adapted to engage one end of a pin 172 formed on the end of latch 169 and projecting through a slot in the gear 165. On the depression of the clearing-key 170, the latch 169 is rocked so as to release the paWl 166 and the latter is drawn by its spring to a position in which its tooth lies in the path of movement of the tooth 168. lf the operating handle 24 be now actuated through its normal forward and reverse movement, the forward movement of the handle will cause rotation of shaft 30 and the tooth 168 will engage the tooth on pawl 166 and thus cause gear 165 to rotate with shaft 30. Such rotation of gear 165 Will cause rotation of the double gear 16S-164 through approximately one-third of a revolution, thus driving shaft 54 through the pinion 162 so that the shaft will make one complete revolution. ln the course of this revolution of shaft 54, the tooth on each one of the levers 160 will drop into its notch in shaft 54, so as to clutch the number-Wheel 51 to shaft 54 and carry the number-Wheel With the shaft so that the Zero on the Wheel is displayed through the opening` in the casing. Just as the zeros on the number- Wheels come under the openings in the casing, the inclined edge 174 of a projection on the paivl 166 engages a. stud 175 on the sideframe, so that pawl 166 is Withdrawn from coaction with the projection 168. As the gear 163 is rotated as above described, it strains a coil-spring` 176 secured at one end to the gear and at the other to a stud on the casing. Therefore, When paWl 166 is Withdrawn from coaction with projection 168, spring 176 turns gear 163 back to its original position, the gear 165 ivith the parts mounted' thereon, the pinion 162 and the shaft 54 turning With gear 168 when the latter is actuated thus. This return movement of gear 163 under the influence of spring 176 is arrested by a stud 17 `Tprojecting through an arc-shaped slot in the gear. A link 178 is connected at one end to gear 163 and at the other to the bail 40, so that when the clearing mechanism is operated as above set forth the bail 40 Will be actuated to positively return the slide-bars to their initial positions.

It will be seen that the clearing mechanism is operated by the depression of the clearing-key 170, and then the forward and reverse movement of the operating handle. The depression of the clearing-key operates a clutch consisting of the paWl 166 and the projection 168, so as to connect the operating handle of the machine to the clearing mechanism. TNhen this clutch has been operated, the movement of the operating lever turns the shaft of the number-Wheels through substantially one revolution, and in the course of that revolution the shaft picks up all of the number-Wheels which have been moved from the zero position and carries those Wheels around With it until the zeros thereon are displayed through the openings in the casing. Nhen this has been done, the clutch is automatically released by the engagement of the projection 174 With the stud 175, and the parts of the clearing mechanism are then returned to their initial positions by spring 17 6.

The slide-bars are shown in their normal positions in Figs. 8 and 5. Directly below their forward ends, is a shaft 180 extending across the machine. On this shaft are a plurality of upwardly extending fingers 181.

one for slide-bar. The upper end of each linger 181 engages the forward end of its corresponding slide-bar, as shown in full lines in Fig. o. Secured on'the shaft 180, adjacent to one end thereof, is a cam 182 (Fig llihis camfnormally engages the edge ci' link 183which is pivotally suspended from the bail 416, which is operated iformnplying. A slide 184 is mounted upon a side-trame or the machine by studs 185 extending through slots in the slide, so that the slide .may reciprocate in the direction oi he length of the machine. The rear end o slide is pivotally connected to a'link 188, whose opposite end pivot-ally connected to thehead of 'the operati: lever 24. A projection 187 the 1torward end of slide 184 normally ,engages tie end of link 183 at the edge of the link riat which engages the cam 182. e parts in the position shown in l a key be depressed, the slidebar corresponding thereto can move forwardly distance suiicient'to canse locking et that key the depressed position and locking ot the remaining keys the row in their normal position; but the slide-bar does not move full amount appropriate for the vaine o he depressed key, except in the case the number 1 and the number 2 keys. lnstead, the forward lengthwise movement of the slidefhar is checked at an intermediate point by the linger 181. When the slidebar moves forwardly thus, its end engages the end of the finger 181 and moves that linger with it a slight amount, at the end of which the movement of the slide-bar and the finger 181 is checked by the cam 182 engaging the link 183, movement of this link being then precluded by the projection 187 of slide 184. This position of the lingers 181 is shown by the dotted lines in Fig. 3. It the operatin handle 24 be then moved forwardly, the rst portion of this forward movement will cause the slide 184: to be moved rearwardly, and in the initial portion of this movement of the slide'the link 183 will move with itand this will allow the cam 182 to turn. This turning movement of the cam is accompanied by rocking movement of shaft 180 in its bearings, together with movement of the fingers 181 and the slide-bars 6. This positionfof the fingers .181 is shown by thedot-and-dash lines in Fig. 3. As above stated, the second step of the movement of fingers 181 and slide-bars 6 takes place during the initial portion of theorward movement of handlel 24, and it is completed before the rodor bail 31, moved by the o erating handle, engages any one of thepaw -carrying arms 18, leven though the keys depressed be keys of high value, as, for instance, the number 9 keys.

It will be'seen that by this construction,

number 1 key, or it maybe both the forward movement of slide-bar (i, when one oi the corresponding keys is de pressed, is made in two steps, the first step taking place immediately upon the` depres sion koi the key and the second step tal lng place when the operating handle 2&1 is

moved forwardly. ln other words, the forward movement of a Slidebar 8, when a key corresponding thereto is depressed, is checked intermediate point, the slidebeing held at this point in its movement until operating handle 2e; is moved. This of the normal movement oi: the slide-bars at an intermediate point is :tested hy the 181, which hold the slide-bars temporarily from iraking their iull movement until the handle 2li: is moved. is a result oit this construction, the jar and noise incident to arresting the movement of the slidehars at the oi' their full range of movement, when ,he slidehars are al lowed to make that movement nnobstrnct edly, is avoided, and also the action or" the keys oit the keyboard is much lighter and more uniform. nthe depression of a key, the corresponding slidebar moves only far enough to effect the necessary' locking of the qkeys. The remainder oit the movement of the slide-hars is effected as 'the projection 187 ot slide 18e moves rearwardly. lhis movement of the slide-bars is effected by the springs 12, hut these' springs are not permitted to move the slide-bars quickly with a consequent ar at the end of the movement, as the slide-bars can move only in proportion to the rearward movement of the projection 18'?. l

As above stated, the link 183 is suspended from the bail 116, which is employed in multiplying. As a result of this, when the multiplying key 43 is depressed, the link 183 is 24: carries the pawl-earrying arms and slidebars back to initial position, but the slidebars are not then locked in that position. Instead, on the return movement of the operating handle, the pawl-carrying arms and slide-bars move forwardly with the bail or rod 31 until the slide-bars are arrested by the depressed keys.- Since the pawl-carrying arms and slide-bars move with the bail 31, there is no jar incident to the completion of the movement of the slide-bars. If the link 183 were. not raised at this time, the return movement of the operating handle would carry the slide 184 into ooaction with link 183 and force the latter into engagement with cam 182, as a result of which the fingers 181 might be moved rearwardly and might prevent the slide-bars from assuming theirv the slide-bars, after having their forward movement arrested by the depressed keys, are on the neXt forward movement of the operating handle returned to initial position by the bail 31, it would be undesirable to have those slide-bars moved forwardly by the fingers 181 actuated by the slide 181,-, for such operation mightr give the slide-bars an extra movement such that inaccurate registration would result.

Having now described my invention, what l claim as new therein and desire to secure by Letters Patent is as follows 1. calculating machine comprising the combination of a keyboard, number-wheels, key-set devices controlled by the keys of the keyboard, differential members actuated un der the control of the key-set devices to operate the number-wheels in accordance with the values of the depressed keys, an operating device for actuating said differential members and thereby drivingthe numberwheels, and means for connecting the operating" device in driving relation to 'the number-wheels independently of the differential members to reset the num er-wheels at Zero, substantially as set forth.

Q. calculating machine comprising the combination of a keyboard, a shaft, numberwheels mounted thereon and adapted to be connected thereto, key-set devices controlled by the keys of the keyboard, an operating device -for actuating the number-wheels in accordance with the values of the keys depressed, and a clutch for connecting the operating` device to thek shaft of the numberieels for resetting the number-wheels at z ro by the operatingv device, substantially set forth. 3. i calculating1 machine comprising the combination of a keyboard, a shaft, numbernounted thereon, means for automaticalid` connecting the numberwhee' to the shaft when the shaft is roet devices controlled by the keys `board, an operat' device for 'Line number-wheels accordance with the values of the keys depressed, a clutch i r connecting the operating device e shaft of the number-wheels, a clearingl ,and means operated by said key for actusaid clutch, substantially as set forth.

is calculating machine comprising the combination of a plurality of rows of keys, a slide-bar for each rovir movable lengthwise the control of the keys, number- 'w heels connected to the slide-bars so as to be rater thereby, an operating device for actuating the rnumbe,r,vheels and slide-bars, means actuated by the operating device for esetting the number-wheels at Zero, and

ections fiom said means to the'slidefor insuring the return of the slideto normal position when the numbers are reset, substantially as set 5. A calculating machine comprising the combination of a plurality of rows of keys, a slide-bar for each row movable lengthwise under the control of the keys, a shaft, number-wheels loosely mounted thereon, means for automatically connecting the numberwheels to t-he shaft when the shaft is rotated, an operating device for actuating the number-wheels and slide-bars, a clutch for connecting the operating device to the shaft of the number-wheels, a clearing-key for operating said clutch, and means actuated by the operating device when said clutch has been operated for insuring the return of the slide-bars to normal position, substantially as set forth.

6. i calculating' machine comprising tho combination of a keyboard, a shaft, numberwheels mounted thereon and adapted to be connected thereto, key-setl ievices controlled by the keys of the keyboard, an operating device for actuating the numberwheels in accordance with the values of the keys depressed, a clutch, a key for operating the clutch to connect the operating` device to the shaft of the number-wheels, and means for automatically disconnecting` the clutch, substantially as setforth.

7. ik calculating machine comprising the combination of a plurality of rows of keys, a slide bar for each row movable lengthwise under the control of the keys, a shaft, number-wheels loosely mounted thereon, means for automatically connecting the numberwheels to the shaft when the shaft is rotated, an operating device for actuating the number wheels and slide bars, a clutch for connecting the operating device to the shaft of the number-wheels, a clearing-key for operating said clutch, and means actuated by the operating device when said clutch has been operated for automatically releasing said clutch, substantially as set forth.

3. fr calculating machine comprising the combination of keyboard, shaft. numberwheels mounted thereon and adapted to be connected thereto, key-set devices controlled by the keys of the keyboard, an operating` device for actuating the number-wheels in accordance with the values of the keys depressed, a resetting mechanism connected to said shaft, ay clutch, a key for operating the clutch to connect the operating device to the resetting mechanism, means actuated by the operating device when said clutch has been operated for automatically rel *using the clutch, and a spring for returnin the resetting mechanism 'to normal position when the clutch is released, substantially as set forth.

9. j; calculating machine comprising` the combination of a plurality of rows of kcvs, a slide-bar for each row, means for moving` the slide-bars lengthwise when a key corresponding thereto is depressed, means for nordsee i checking the movement of a slide-bar at an intermediate point in its movement, andr means for retr ng the slide-bars to initial position, substantially as set forth.

l@ calculating machine comprising the combination off a plurality of rows of keys, slide-har for each row, means for moving the slidebars lengthwise when a key corre spending thereto is depressed, an operatinglce `for ret aina e slide-bars to initiai position, isa-ns i: arresting 'the move- "nent ci the slide-bers actuated by said ns and :tor permi` a continuance of movement whe perating device is set orthu `ne comprising the of pir il. calculating g ity of rows of keys, each row, means tor moving lebars lengthwise when a ley corren 'thereto depressed, means for ie movement ci" the slide-bars actin j said means, an operating device for returning the slic cars to initial posiion, substantially as set iiorth.

le.. e, calculating machine comprising the combination of a pini ity oiA rows of keys, a slide-har :tor each row, means i'or moving the slidehars lengthwise when key corresponding thereto is depressed, a movable shock-absorbing device 'for easing 'the move ment of the slide-bars actuated by said means, and means for returning the slidebars to initial position, substantially as set forth,

i3, A calculating machine comprising the combination or a plurality of rows ot keys, a slide-har for each row, means for moving 'the slide-bars iengthwise when a key corre spending 'thereto is depressed, means for causing said movement to be made in two steps, and means for returning the slide-bars to initial position, substantially as set forth. 14. A. calculating machine comprising the combination of a plurality of rows of keys, a slide-bar for each row, means :tor moving the slide-bars lengthwise when a key corresponding thereto is depressed, an operating device, means for causlng said movementto be made in two steps, one dependent upon and the other independent of the movement of said operating device, and. means lactuated by the operating device for returning the slide-bars to initial position, substan-l t-ially as set forth.

15. A' calculating machine comprising the combination of a plurality of rows of keys, a slide-bar. for each row, means for moving the slide-bars lengthwise when a key corresponding thereto is depressed a distance def and means for returning the bars initial position, substantially as set forth.

lo. l calculating machine comprising the combination oi a plurality of rows keys, a slidehar tor each row, means :tor moving the slide-oars lengthwise when a key corre spending 'thereto is depressed, stops for an resting movement the slide-bars, an onen ating device, means actuated hy movement oiE the operatinoF device for witl said stops to p l n lt continues mov the slide-hars, and means actuated operating device for retnrning the initial position, substantially as set it?, il calculating machine compris combination ci a plurality of rows slide-bar for each roi/v, means for i 'the slidebars lengthwise when a key coi spending thereto is e l,

fingers thereon engaging the ends o the `slide-bars, an operating device, means ac land coacting with lsaid cam, substantial tuated 'thereby igor returning the slidebars to initial position, a cam on said she r" a slide moving with said operating as set forth.

19. A calculating machine comprisingthe combination of a plurality of rows ot keys, a slidebar foreach row, means for moving the slide-bars lengthwise when a key corren spending thereto is depressed, means for checking the movement oi a slide-har at an intermediate point in its movement,l means for returning the slide-hars to Vinitial position, a repeat-key, and means operated by the repeabkey for rendering said checking means inoperative, substantially as set Jicrth.

20. A calculating machine comprising the combination of a plurality of rows of keys, a slide-bar for each row, means for moving the slide-bars lengthwise whenva key corresponding thereto is depressed, an'operating device tor returning the slide-bars to initial position, means for arresting the movement of the slide-bars actuated by said means Aand for permit-ting a continuance of said movement when thel operating device isa operated, a repeat-key, and means operated by .the repeat-key 4for rendering said arresting means inoperative, substantially as set forth. f l

AN. w

2l. A calculating machine comprising the combination of a plurality of rows oi' keys, a slide-har for each row, means for moving the slide-bars lengthwise when a key corre- 5 spending` thereto is depressed, a movable shock-absorbing' device for easing the movement of the slide-bars actuated by said means, means for returning the slide-bars to initial position, a repeat-key, and means operated thereby for disabling said shockabsorbing` device, substantially as set forth. f calculating machine comprising the combination o" a plurality of rows oi keys, a slide-har for each rovv, means for moving` 'de-bars lei livvise when a key correis depressed, a shaft, linr gina' the ends of the slidef device, means actuated therebjv 'or fng the slide-bars to initial ion, a cam on said shaft, slide ith said operating' device, a repeatv d by 'the regeatd cam and said rtm gli bars, an oper slide-har for locking a depressed'key in depressed position and the other keys of the row in normal position, and means Jfor checking the moven'ient of the slide-bar when the latter has effected the locking of the keys and thereafter permitting completion olf the movement `of the slidebar, substantially as set forth.

24. A calculating machine comprising the combination ot' a roiv or keys, a slidebar movable lengthwise under the control of the keys, means actuated by movement of the slide-bar for lockinga depressed key in depressed position and the other keys of the rovv in normal position, means for checking' the movement or' the slide-bar after the latter has effected the locking,` oit the keys, an operating` device, and means actuated by movement thereof for permitting the slide-bar to complete its niovement, substantially as set forth.

This speciication s',Vned and witnessed this :25th day of Jul 191i.