US1102063A - Carrying mechanism for adding-machines. - Google Patents

Description

J. C. LO'I'TBRHAND.

CARRYING MECHANISM FOR ADDING MACHINES.

APPLICATION FILED DBO. 20, 1912.

Patented June 30, 191 i 0 SHEETS-SHEET 1.

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J. G. LOTTERHAND.

CARRYING MECHANISM FOR ADDING MACHINES.

APPLICATION FILED DEC. 20, 1912.

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By his cfllforney J. G. LOTTERHAND. CARRYING MECHANISM FOR ADDING MAGHINES.

APPLICATION FILED 1330.20, 1912.

1,102,063. Patented June 30, 1914.

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J. G. LOTTERHAND.

CARRYING MECHANISM FOR ADDING MACHINES.

APPLICATION IILBD 1120.20, 1912.

1,102,063, Patented June 30, 1914.

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JASON C, LOTTEitHAND, OF NEW Y ORK, N. Y., ASSiGlN'OBTO AIbDOMETER CORPORA- TION, A CORPORATION OF DELAWARE.

CARRYING MECHANISM FOR ADDING-MACHINES.

Specification of Letters Patent. Patented J 1 1914;

Application tiled December 20, 1912. Serial No. 737,818.

To I whom it may concern Bl. it known that I. JASON C. LOTTER- imxn, a citizen of the United States, residing inXew York city, in the county of New York and State of New York. have invented certain new and useful Improvements in (,arrying Mechanism for Adding-Machines, of which the following is a'specitication.

This invention has for its object to provide an improve lform of carrying or transfer mechanism. whereby in a set of numeral:

wheels or pinions, as each wheel passes the end of a given revolution and begins the subsequent revolution. the wheel or pinion of next higher denomination is advanced one number.

.\nother object of the invention is to provide a construction wherein the rack bars that operate the numeral pinions are returned .to their normal position, and there after the carrying operation of the numeral wheels is effected.

further object is to provide in this class of niachines. a universal bar with means for causing it to return the rack bars to' normal position, and also a' side bar that is operated in cmijunction with the universal ban-wlwreby the side bar is given an additional movement after the'nnivcrsal-bar is brought to rest: and which sidebars-by its said additional movement serves to effect the carrying operation.

Another object of the invention'is to provide a construction wherein the: rack bars that operate the' nnnieral pinions a're caused to return totheir normal position disengaged from the; i-nnneral wheels, aiit'l' thereupon said carrying operation is caused to take place.

in the accompanying drawings, showing.

one enibodiment of my; invention, l ignre 1 represents a side elevation ot'an adding machine. but with the supporting side. plate emitted for the sake of clearness. Fig.-'2

a fragmentary side elevation inside of the V casing.

Fig. 3 is a fragmentary view showin; the operating parts shown in Fig. 2, in diti'erent relative positions. Fig; 4 is a detail of certain parts shown in Fig. 3. Fig. 5 is a sltlt elevation at the opposite side of the machine from that shown in Fig. 1. Fig. (i is a fragmentary view of the operating parts shown in Fig. 5. in ('litl'erent positions. Fig. 7 is a plan view of the machine with the key-board and principal parts of the adding wvheels removed. Fig. 8 is a side elevation of the adding wheels and the connected parts in the numeral wheels.v Fig. 9. also "Figs. 1O, 11 and 12, show tile parts set forth in Fig. S.'in diti'erent consecutive positions. Fig. 13 is a fragmentary front elevation of the parts shown in Fig. 8. Fig.

14 is a plan of the parts shown in Fig. 12-).

-Fig. 15 shows the elbow segment lever detached. Fig. 16 shows the detent .lever detached. F ig. 17 shows a rack bar for lock plate, and Fig. 18 SliOWs the stop bars.

The machine illustrated. shows operating. keys, adding mechanism controlled by the keys upon the operation of the handleiand in. connection with the adding mechanism are shown type plates whereby the items set up in the machine can he printed. its is cus tomary in this art. But the printing mech anism forms no part of the present invention. Asstated, printing type are shown carried by the operating rack-Inn's. and

hence the several type are positioned inci dent to the necessary movement of the rackbars to operate the nutneral pinions. lint; since the printing mechanism forms no part of this invention. no means are set forth for causing the t vpe to print.

In this art it is customary,'after a series .of number-shave been up in the machine and their total produced on the adding wheels. in addition to printingeach item as set-up. the total can be printed by the operat-ion ot' aspecialfkey. The present machine. embodies totalizing mechanism, and while some-of the partsare shownin' tint-drawing, only somuch of thisincch-anisin will be do scribed as is necessary to set up the items on the numeral wheel's successively to cause them to carry; the totalizing mechanism being set forth in another application of mine, Serial No. 745.892. Feb. 3, [913. in the drawing the machine is shown as comprising a Suitable base l and upright side plates and 3. which three membersserve to carry theoperating parts of the device. suitable easing4 is provided that may-be formed of an integral top with'two side and two end members. At the front of the machine is shown, a suitable plate 3, somewhat inclined. at which portion are arranged the usual banks of keys, (3. These keys carry stems 7 supported for verticalmovement and pivoted to a bell-crank 8. A horizontally moving stop-bar 9 is shown connected to'the bell-crank that will be advanced when the key 6 is depressed, as indicated in Fig. 1. A.

second stop-bar 10 is shown in a retracted position, the stop-bar 9 being shown as advanced and projecting some distance beyond a vertical plate 11. These stop-bars and operating keys form no part of the present invention, and it is sufficient to understand that the stop-bars are caused to project beyond the plate 11 when the appropriate keys are depressed, and by suitable means the stop-bars are. retracted. There is a number of banks of these keys each bank having the usual nine keys, from 1 to 9,. and for each bank there will be one numeral wheel or pinion. .For each of said vertical rows of keys and corresponding set of stop-bars 9,

is a rack-bar 12, and from Fig. 7 it will be all of'which coeperate with a universal barv 18 supported at its ends on levers 19 and 20,

respectively. The swinging of these levers moving the universal bar 18 downward will depress all of the rack bars to tension their springs, and will hold them in their lower- -most and normal position. At thefront of each rack bar is alug 21 that, when the rack bars are permitted to rise by the universal bar, will engage one of the stop-bars 9 advanced b a. set key, and prevent further elevation o the particular rack-bar. It will be understoodthat the nine stop-bars in each bank are relatively positioned so that the rack-bar will be permitted to rise a. corresponding distance, and which is so arranged as to cause any one of its 'nine teeth to be positioned opposite a pre-determined point according to the stop-bar advanced. It will be'observed that each rack bar, 12, has an extension 133 carrying a set of nine type 144, which coiiperate with suitable printing mechanism, not shown, and which'need not be further described.

ing fast thereon a crank-arm M mmy-ingest" crank-pin 25.

As indicated in Figs.- 1 and 2, a bar 26 has a slot 27 at one and through which pro jects the said crank-pin 25, to have a limited horizontal movement therein. A link 28 .these Jnain springs.

. has one end pivoted on the pin 25 and its other end is pivoted to one arm 29 of a'bent lever that is itself pivoted at 30 on the bar 26. This forms a toggle connection between the bar 26 and the crank'arm 24, which toggle is broken as shown in Fig. 2, that is the normal inoperative position of the parts. The other end of the bar 26 is pivoted to a crank 31 fast on a main shaft 32 suitably mounted in hearings on the machine; which shaft carries the operating handle 33. Swinging this handle will rock the bar 26. When the handle is swung forwardly from its normal rear position, as shown in Fig. 2, it will draw the bar 26 forward, and since the. toggle member 29 is pivoted to the bar 26, itwill be drawn forward. A coil spring 34connects the pivot 30 and the toggle lever 29 with the crank-pin 25, tendin to keep the toggle links in the position indicated in Fig. 2, out of alinement. When the bar 26 is drawn forward the pin 30, moving away from the crank-pin 25, will tension the.

spring 34. The said shaft. 23' is connected with the main operating spring or springs 35 of the device, shown in Fig. 7 through crank-arm 19, fast on the shaft 23 at the rear of the machine. The springs 35 are connected between the crank-pin 37 on this crank and a stationary rod 38 carried by the said side member 4. It will be understood that these springs 35 tend to draw the'link 28 rearwardly, and that. they greatly overbalance the toggle spring 34. \Vhen the handle is swung forward and the bar 26 "moves forward, the pin 30 will be moved forward, while the crank-pin 25 is retained in the position shown, by the said main springs. This will straighten out the toggle members, that is permitted by reason of the slot 27 in the bar 26, and it will be seen that the bar 26 will advance a short distance before any movement is given to the crank 24. But as soon as the toggle straightens, the crank-pin 25 will be held stationary at the rear portion of the slot in the bar 26. and thereupon the advanced bar 26 will carry the crank 24 forward. As soon as the crank 24 is moved, the arms 19 and 20 will swing upward carrying the universal bar.- But it will be seen that this universal bar is not moved until the bar 26 has been advanced a sufiicient distance to straighten the toggle, After the handle has been drawn forward the full movement, during which time the swinging of the link 28 puts the main springs 35 under tension, upon the handle being allowed to retnrn, the bar 26 will be drawn rearwardly'by the tension of movement, the toggle will remain straight, and just before the crank 24 reaches the limit of its rearward movement, that is de termined by suitable stops 36, an arm 97 on the toggle link 29 strikes a stop pin 99 on Duriu g this return the side member that will cause the toggle to be broken, and at this period, since the arm 26 cannot move any farther rearwardly, the spring 34 will cause swinging of the toggle members that will draw the pin rearwardly toward the now stationary pin 25, and hence further retract the bar 26. In order to prevent the too rapid return movement of the bar and handle, and parts operated at such period, I provide a suitable retarding device, such as a dash pot P, connected with the shaft 23 by a yoke y.

(m'lperating with each of the rack bars 12 is a wheel in the form of a pinion, 40, and termed herein the numeral pinion. These are all mounted free to turn on a shaft 41 extending across the machine; and carried by supports in the form of a lever 42 on the left side of the machine, as shown in Fig. 5, fast on a shaft 43. On the other side of the machine is a lever 44 fast on said shaft 43. By rocking this shaft 43 the pinions can be shifted from engagement with the rack bars 12, as indicated in Fig.

. 8, to a position free from the rack bars, in-

dicated in Fig. 10. When the rack bars 12 are reciprocated a distance governed by the positioned stop-bar 9, the pinions in mesh therewith will be rotated a corresponding distance. The pinions are held in engagement with the rack bars during their movement in one direction only in the normal operation of the machine, and by swinging these levers the pinions are moved to disengage the rack bars during their movement in the other direction. In this particular machine, in the normal adding operation, the pinions will be held away from the rack bars, as indicated in Fig. 10,- and after the keys have been depressed to position the stop-bars 9, the swinging of the handle and consequent rising of the universal bar 18 will permit the rack bars to rise by their compressed springs, until the stop on the forward part of the rack bar engages the appropriate positioned stop bar. Thereupon, by means hereinafter set forth, the pinions are all shifted rear-wardly to engage the rack bars and hold them engaged during the return movement of the rack bars caused by the return of the universal bar. Thereupon, the pinions will be rotated a distance corresponding with the movement of the rack bars, that is controlled by the stop bars.

arrying mechanism is provided for each numeral wheel, except the last wheel on the left hand side, whereby as each wheel completes a revolution and begins the second revolution the carrying operation takes place to advance the wheel or pinion of next higher denomination a single number. This mechanism is operative to be set during the rotation of the wheel in engagement with the rack bar, but the carrying operation is not done at such time. At a subsequent stage in the operation, after the pinions are all moved forwardly to disengage the rack bars and the rack bars are returned to normal position by the universal bar, then such set members are caused to effect the carrying operation.

The mechanism for the carrying operation comprises essentially a toothed segment lever andan operating detent lever for each of the pinions except one. In front of each pinion 40 except one is an elbow lever 46 that are all mounted on a stationary shaft 47 supported in the side plates. Each elbow lever has a segment arm 48 projecting rearwardly and provided with teeth corresponding with the teeth of the pinions 40, and these segments are positioned so that immediately upon the pinions 40 being swung forward and disengaging the racks 12, they will engage these segments, whereby the pinions are constantly controlled by one of these two members. It will be seen that when the'pinions engage the rack bars, the toothed segments are free to swing, as indicated in Fig. 9. But when the pinions are shifted forward, as indicated in Fig. 10, rocking the elbow lever 46 in the direction indicated by the lrrow, will turn the pinion the same direction in which it is turned by the downward movement of the rack bar in engagement therewith. Each of the elbow levers has a downwardly extending arm 49, see Fig. 15, provided with an car 50 extending to the right toward the pinion of lower denomination. A spring 51 connects each arm 49 with a suitable stationary part of the machine, tending to draw the arm 49 rearwardly to swing the toothed segment upwardly in the direction of the arrow, from the position shown in Fig. 9 to that shown in Fig. 10; and if the pinion enga es the segment at such time the same will be advanced to effect the carrying operation.

For each of the elbow levers 46 there is a detent lever 51, shown separately in Fig. 16. having an arm 52 projecting forwardly and provided with a catch 53. These levers all swing on a stationary cross shaft 54, and are positioned to have each catch .33 cooperate with the car 50 on the depending arm 49. A spring 55 connects the arm 52 with a stationary piece 56 connected with the shaft 47, tending to swing the arm 52 up wardly into engagement with the ear 50, thereby causing the ear to engage the catch 53, as indicated in Fig. 12, whereby this catch will prevent rearward movement of the arm 49 by its spring. Vhen the detent 51 is tripped, as the arm 52 swings downwardly so that the catch releases the ear, the spring 55 will draw the arm 49 rearward causing the toothed segment to swing the pinion if the latter is shifted forward in engagement therewith.

The detent 51 is provided with an upwardly extending arm 57 provided with a stop 58 at its upper end. It will be observed from Figs. 13 and 16, that the stop 58 is ofiset to the righta short distance from the pinion corresponding with the toothed segment whose lever and ear engage this dotent, that is, cooperates with the pinion of next lower denomination. Each of the pinions 40 is provided with a lug or cam 60 that, when the wheel is swung in the direction of the arrow, indicated in Fig. 8, will strike the stop 58 to move the arm 57 forwardly and swing the detent arm 52 downwardly, thereby tripping the detent to free the car 50 of the elbow lever 49. This would permit the toothed segment to swing and if the pinion were in engagement therewith, it would be turned. But the pinions are only rotated when shifted rearwardly to engage the rack bars, as indicated in Fig. 8, in which position of the parts the toothed segment is free from the pinion. It is by this move ment of the rack bars that the pinions are rotated causing the cam 60 to swing the dctent lever to trip the elbow levers 46. Therefore means are provided for'engaging the elbow levers to arrest their free movement and to hold them tripped from the detent arm until in a subsequent stage thepinions 10 have been shifted forwardly, disengaging the rack bars and engaging the segment arms. Thcreupon the release of the elbow levers will permit them to be swung by their actuating springs a sufficient distance to turn the pinions a single tooth, to advance them a unit distance. This function is accomplished by a restoring bar (51 carried by arms 62 and 63 swinging on opposite sides of the machine on the side plates.

It will be seen from Fig. 8 that the bar 61 is held a short distance offset from the lower end of thearm 49, whereby when the detent is swung by the cam torelease the car 50,

the arm 49 can be swung by its spring a short distance to pass the catch 53 and prevent rengagement when the cam leaves the stop 58 of the detent, as shown in Fig. 9. The carrying levers are held in this position by the restoring bar until the pinions are swung forward to engage the segment arms. Then the bar 1 is shifted rearwardly to the position indicated in Fig. 10, which will permit the elbow levers to be swung by their springs a sufficient distance to turn the pinions a unit distance to carry. It will, of couise, be understood that all of the elbow levers and corresponding detents are independent, and only those tripped by the cam 60 will be permitted to swing when the restoring bar moves rearwardly. When the restoring bar 61 is moved forwardly, as indicated in Fig. 11, it will engage the depending arm 49 and swing it forward, thereby permitting the ears 50 to rengage the catch 53 on the arms 52, as indicated in Fig. 12. But the latter operation is not effected until the pinions have been swung rearwa d free from the segment arms 48.

The means for operating the restoring bar ill in timed relation to the operation of the universal bar 18. and also for operating the lever 42 to shift the numeral pinions into engagement alternately with the rack bars and with the segment arms, is as follows: On the right side of the machine a bar (it is pivoted to the arm (32, its other end having a slot 5 riding on a fixed pin (36. The bar 64 carries a lug (37 that is engaged by an arm (38 carried by the bar 26, at the extreme forward movement of the bar, and thereby the arm ()2 will be swung to move the restoring bar 1 forward. An elbow lever has one arm (39 provided with a'catch arranged to engage a lug 71 on the arm (32, to thereby lock the arm 62 and prevent its being returned by a spring 73. 3ut the latch is so positioned that the bar 62 can be given a slight rearward movement on the return of the bar 26 before these parts 70 and 71 engage to lock the restoring bar lll such position. This is for the purpose of swinging the depending arms 49 suflicieutly forward to permit the detent arm to rise and engage the catch with the car 50. and thereupon the restoring bar that will be held by the latch 70, will be spaced a slight distance from the depending arm 49, as indicated in Fig. 8. This will also permit the slight rearward movement of the depending arm 4f) when the detent is tripped, as indicated in Fig. 9. The further rearward movement of the bar 26 will not interfere with the position of the arm 62 and the restoring bar until a depending arm 7-1- of the elbow lever, that is held in latched position by a spring 75, is en aged by a pin 76 on the bar 26 to cause t is elbow lever to be tripped. releasing the arm 62 and the restoring bar. But this engagement of the pin 76 with the arm 74, by the position of the pin, is not effected until the final part of the rearward movement of the bar 26. after the universal bar has been returned to its normal lowermost position and the tog gle broken, as has been described. ()n the opposite side of the machine a similar construction is provided, the arm (33 being drawn rearwardly by a spring 77 to engage a stop pin 78. It should be stated that the arm 62 engages a stop pin 79 when drawn back by its spring 73. A bar 80 is pivoted to the arm 63 and guided at its slotted por"- tion 81 on a pin 82. This bar 80 carries :1 lug 83 that is engaged by an arm 84 fast on a bar 85 corresponding to the bar 26 on the opposite side of the machine. The shaft 32 operated by the handle 33, extends through the machine and on the left side carries a crank arm 86 pivoted to the bar 85 by which the bar willbe swung from the handle. At its rear the bar has a slot 87 in which rides a crank pin 88 fast on a crank 89 secured to the shaft 23, that extends through the machine and which connects with the main operating springs 35, as before described. This bar is also provided with a toggle formed of a link 90 and an elbow 91 cooperating with a pin 92 identical with the construction on the opposite side of the machine, and hence need not be further desc'ribed. The bars 26 and 85 will therefore swing back and forth in unison from the operation of the handle and the main springs. By the said means the arms 62 and 63 will be similarly controlled by the bars 26 and 85. A catch 93 engages a lug 94 on the arm 63 similar to the opposite side of the machine, and a pin 95 on the bar 85 trips this latch in the same manner, the latch being controlled by a spring 96.

The side lever 42, by means of which the numeral pinions are shifted to engage alternately with the rack bars and with the toothed segments, extends downwardly on the left side of the machine and is pivoted to a bar 97. The forward end of this bar carries a pin 98 riding in a suitable slot in the said frame, not shown, to guide this bar. The bar 85 is provided with. a slot 99 thr ugh which the pin {)8 extends, and as the bar 85 moves back and forth the end walls 100 and 101 of this slot alternately engage the pin 98 at the extreme forward andrearward parts of the movement of this side bar. By this means, the arm 42 will be alternately swung back and forth a suflicient distance to carry the pinions to engaging position. -Suitable means are provided for holding the lever 42 in these two positions, shown in the form of an arm 102, pivoted at 103 in the frame, and carrying a stop pin 101 having its upper edge in the form of a ridge. This arm is pressed upwardly by a spring 105 to engage alternately with n tches lot; and 107 in the lower edge or c'nd of the lever 10:2. These notches will he engaged by the pin at the two said extreme positions of the lever and retain the pinions in said positions until shifted by the reverse movement of the bar 85.

lo the construction of this machine suitable mechanism is provided whereby when none of the keys and stop bars of a row, or n as have been depressed the rack-bar corresponding therewith is locked in its normal lowermost position and prevented from rising with the universal bar. In front of each of the rack bars is a lock bar 110, shown in l"ig. 17, that is provided with a spring 111 pulling it forwardly and upwardly. This plate has a bent portion 112 arranged to be engaged by the extremity of the stop-bars 9 so that when any stop bar is advanced it will cause the plate 110 to swing rearwardly, The lower end bent portion 112 engages a projection 113 on each rack bar in the normal position of the plate 110, but when this plate is moved backwardly by the stop bar, as described, the rack bar will be free to rise upon the swinging of the universal bar. Therefore, in each row where no key is depressed, this plate will arrest the rack bar and prevent its elevation when the universal bar rises.

In the operationof the machine, it will be understood that the keys are first depressed and the appropriate bars positioned. Then the handle is pulled forward and the first operation is to cause the toggles on both sides to straighten out, thereby effecting a rigid connection between the said b'ars and the cranks on the spring actuated shaft. The further movement of the bars by the handle will swing the said shaft, causing the universal bar 18 to rise. The various rack bars, that are normall held down with the universal bar with their springs under compression, will be elevated thereby until such stop bars as have been set arrest the movement of the appropriate rack bars. Thereupon the pin 98 will be engaged by the side bar 85 swinging the lever 42 to shift the pinions rearwardly, the pinions being normally held forward as indicated in Fig.10, free of the rack bars. Immediately after the pinions engage the rack bars, the arms (52 and 63 are swung forward by their connections with the two side bars to shift the restoring bar to its forward position, which incidentally w ill swing the depending arms 49 of any of the carrying elbow levers that had advanced during a receding operation to carry. But it will e noticed that the pinions are now in engagement with the rack bars and therefore this restoring of the carrying levers is' permitted while-they are free from the pinions. As the handle is released and the side bars carried back through the operation of the main springs, the two latch bars 9 and 93 will engage the arms carrying the restoring bar as indicated in Fig. 4. and hold it a short distance to the rear of the carrying arms 49; ermitting them to be tripped by the wheels during the first part of the carrying operation. During this rearward movement the universal bar is, of course, permitted to lower, that will force the rack bars downwardly and being in engagement with thepinions will rotate the latter'the proper amount, corresponding with the de ressed keys. As any of the wheels pass t; 1e zero they will trip the carrying lever and will be arrested. 'by there storing bar, as described. The universal baris brought to rest and then the toggle joint and spring will cause a further retraction of the side bars. The latter will swing the latches 69 and 93, releasing the restoring bar that will be at one retracted by its operating springs. The rearward movement of the bars after the toggle has been broken will first cause the wall to strike the pin 98 and shift the lever 42 carrying the pinions forward. disengaging the rack bars and rct ngaging the segment" arms. And the further movement rearward of the side bars will result in the latches 93 and (39 being tripped by the pin on the bars, releasing the restoring bar that will be drawn rearwardly by its springs. Thislatter movement will release the carrying levers that have been tripped from the detent and the segment arms now engaging the pinions will effect the rotation of the pinion, that will be permitted for a distance equal to one toot-h. by reason of the final position of the restoring bar. Those carrying levers that have been tripped to carry will be now engaging the restoring bar, whereby on the next forward movement of the handle the restoring bar will, since the pinions have been moved rearwardly to engage the rack bars, return. the carrying levers to reengage the detents.

Having thus described my invention, I claim 1. In a calculating machine, the combination of a set of numeral pinions, an actuator for each pinion, a set of frames, one said pinion being pivoted on each frame, a set of toothed levers, said frames being movable to shift the pinions to alternately engage the actuator and the toothed levers, a cam on each said pinion, a set of detents one for each lever, and mounted on fixed pivots independent of the frames, a stop on each detent in position to be engaged by the said cam on the forward turning of the pinion to shift the detent from normal position, said stop beiir; also arranged upon backward turning of the pinion to arrest the pinion at zero, 'an car on each said toothed lever, a catch on each said dctcnt arranged to engage directly sai-l ear, and a spring engaging each said toothed lever to normally press the car against the catch and upon said movement of the dctcnt by the cam to shift the ear out of engagement with the catch and permit the spring to swing the lever and turn the piaion of next higher order to carry, and means fol-returning said detent to normal car engaging position.

2. In a calculating machine. the combination of a set cf numeral pinions, an actuator for each pinion. a set of frames, one said pinion being pivoted on each frame, a set of tooth-ed l(".'tl. said frames being movable to shift the pinions to altermitcly engage the actuator and the toothed levers. a cain on each said pinion. a set of detents one for each said lever. and mounted on fixed pivots independent of the frames, a stop on each detent in p sition to be engaged by the said cam on the forward turning of the pinion to shift the detent from normal position, said stop being also arranged upon backward turning of the pinion to arrest the pinion at zero, an ear on each said toothed lever, a catch on each said detent arranged to engage directly said ear, a spring engaging each said toothed lever to normally press the ear against the catch and upon said movement of the detent by the cam to shift the ear out of engagement with the catch and permit the spring to swing the lever and turn the pinion of next-higher order to -arry, means for returning said detent to normal ear engaging position, and a restor ing bar arranged to directly engage all said toothed leversto return them to engagement with the said detents.

3. In a calculating machine, the combination of a set of numeral pinions, an actuator for each pinion, a set of frames. one said pinion being pivoted on each frame, a set of toothed levers, said frames being movable to shift the pinions to alternately engage the actuator and the toothed levers, a cam on each said pinion. a set of detents one for each said lever, and mounted on fixed pivots independent of the frames, at stop on each detent in position to be engaged by the said cam on the forward turning of the pinion to shift the detent from normal position, said stop being also arranged upon backward turning of the pinion to arrest the pinion at zero, an ear on each said toothed lever. a catch on each said detent arranged to engage directly said car. a spring engaging each said toothed lever to normally press the car against the catch and upon said movement of the detent by the cam to shift the ear out of engagement with the,catch and permit the spring to swing the lever and turn the pinion, means for returning said dctcnt to normal ear engaging position, a restoring bar. and means connected with the said actuators and with the restoring bar and operative to hold the restoring bar in position a short distance removed from the said toothed levers when the actuators move the pinions to carry and the cams trip the dct-ents to release the toothed levers, \vherebv the toothed levers will at once advance a short distance to disengage the ear and catch, the restoring bar being next advanced by said means to permit full movement of the toothed levers by their spring to turn the pinions to carry, the restoring bar being thereupon retracted beyond said first mentioned position to restore all the ears and catches in engagement.

4. In a calculating machine, the combination of a set of numeral pinions. an actuator for each pinion. a set of frames. one numeral pinion pivoted on each frame, a set of elbow levers one for each pinion and centrally mounted on pivots and each having one arm toothed, said frames being movable to shift the pinions to alternately engage the actuators and the toothed arms, a

cam on each pinion, a set of elbow dctents centrally mounted to swing on fixed pivots independent of the frames, at stop on one arm of each detent in position to be engaged by saidmam upon forward turning of the pinion to shift the detent from normal position, said stop being also aranged upon backward turning of the pinion of next higher order to carry to arrest the pinion at' zero, an ear on the other arm of each elbow, a catch on the other arm of each said detent arranged to engage said ear, and a spring engaging each said toothed lever to normally press the ear against the catch and upon said movei ent of the detent by the cam to shift the ear out of engagement with the catch and permit the spring to swing the lever and turn the pinion.

5. In a calculator. a side bar. means for reciprocating the side bar, an operating shaft. an arm fast on the shaft. a pin on said arm. a link pivoted by one end to said pin. an elbow lever pivoted on the side bar with one arm pivoted to said link. a sprin connecting said pin with the pivot of sai lever. and a stop arranged to engage the other arm of the elbow lever when the side bar is advanced to break the toggle formed by the said link and lever arm and permit the spring to shift the said arm and shaft relative to the side bar.

(3. In a calculator, a side bar having a slot in one end, means for reciprocating the side bar. an operating shaft, an arm fast en the shaft. a pin on said arm riding free in said slot of the bar, a link pivoted by one end to said pin, an elbow lever pivoted on the side bar with one arm pivoted to said link. a spring connecting said pin with the pivot of said lever, and a stop arranged to engage the other arm of the elbow lever when the side bar is advanced to break the toggle formed by the said link and lever' arm and permit the spring to shift the said arm and shaft relative to the side bar.

7. The combination of numeral pinions, a set of slidable rack bars arranged to cooperate with the pinions respectively, a set of keys, means for advancing the rack bars, stop levers actuated by the keys for arresting the rack bars in corresponding positions, a universal bar arranged, to engage each of the rack bars to move them against the force of said advancing means to normal position. a driving member operatively connected with the universal bar, carrying mechanism,connected with the pinions, and ontroiiing mechanism for the carrying means connected with the driving member and organized and constructed to permit the carrying operation to take placeat the final part of the movement of the driving member after the universal bar has returned the rack bars to normal position.

8. The combination of numeral pinions,

carrying means connected with the pinions and arranged to be set as each pinion passes the zero position, but not to carry until re ltased. a set of slid-able rack bars arranged to cooperate with the pinions respectively, a set of keys, means for advancing the rack l)tll'r-, stop levers actuated by the keys for arresting the rack bars in orresponding positions, a universal bar arranged to engage each of the rack bars to move them against the force of their springs to normal position, a driving member operatively connected with the universal bar, and controlling mechanism for the carrying means connected with the driving member and organized and constructed to permit the carrying operation movement of the pinions to take place at the final part of the movement of the driving member after the universal bar has returned the rack bars to normal position.

J. The combination with the adding device including carrying devices and a restoring bar and a universal bar. of an operating member, a power shaft directly connected with the universal bar, a side bar operated by the handle, a toggle connection between the power shaft and the side bar operable to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position, and connections between the side bar and the carrying device arranged to operatev the carrying device by the side bar after the universal bar comes to rest.

10. The combination With the adding device inclnding carrying devices and a restoring bar and a universal bar, of an operating member, a power shaft directly connected with the universal bar, a side bar operated by the handle, a toggle connection between the power shaft and the side bar oyerable to cause additional movement of tie side bar after the ower shaft has returned the universal bar to normal position, connections betwen the side bar and the carrying device arranged to operate the carrying device by bar comes to rest, and connections for operating part of the adding device by the side bar after the universal bar comes to rest.

' 11. The combination with the adding device including rack bars and carrying devices of an operating shaft, a side bar arranged to be reciprocated by the shaft, a spring operated shaft, a universal bar for the rack bars directly connected with the power shaft, a spring toggle connection between the s de bar and spring shaft causing the side bar to reciprocate as the power shaft is oscillated and to give the side bar an additional movement after the spring shaft and universal bar come to rest, a restoring bar for the carrying devices, swinging arms for the restoring bar, a lug operativeiy conthe side bar after the universal meted with one of said latter arms, a stop on the side bar arranged to strike said lug at the latter part of the forward movement of the side bar to swin the restoring bar, a latch arranged to hold the restoring bar in forward position upon return of the side bar, a spring tending to move the restoring bar back, and a pin on the side bar to trip the latch and release the bar at the final return movement of the side bar after arrest of the universal bar.

12. The combination with the adding deviccs, including rack bars and numeral pinions and carrying devices, of an operating shaft, a side bar reciprocated by said shaft, a spring operated shaft, a universal bar for the rack bars directly connected with the operating shaft, a spring toggle connection between the side bar and the spring shaftcausing the side bar to reciprocate as the operating shaft is oscillated and to give the side bar an additional movement after the springghaft and universal bar come to rest, supports for the numeral pinions movable to shift the pinions to and from the rack bars, an arm on said supports, a pin connectcd with said arm, an abutment on the side bar arranged to strike said pin to swing the supports and pinions at the final part of the forward stroke of the bar, and a second abutment on the side bar positioned to strike the said pin to swing the pinions back at the final part of the return movement of the side bars after the return of the universal bar to normal position.

1; The combination with the adding devices, including rack bars and numeral pinions and carrying devices, of an operating shaft. a side bar reciprocated by said shaft, :1 spring operated shaft, a universal bar for the rack bars dircctl connected with the operating shaft, a spring toggle connection between the side bar and the spring shaft causing the side bar to reciprocate as the op erating shaft is oscillated and to give the side bar an additional movement after the spring shaft and universal bar come to rest, supports for the numeral pinions movable to shift the pinions to and from the rack bars, an arm on said supports, a pin connected with said arm. an abutment on the side bar arranged to strike said pin to swing the supports and pinions at the final part of the forward stroke of the bar. and a second abutment on the side bar positioned to strike the said pin to swing the pinions back at the final part of the return movement of the side bars after the return of the universal bar to normal position. and a spring stop to hold the supports and pinions in said two positions to which moved by the side bar.

14. The combination of an adding device. a universal bar, an operating member, a power shaft directly connected with the universal bar, a side bar advanced by an actupower shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position, and connections betwe n the side bar and the adding device arranged to operate the add ing device by the side bar after the universal bar comes to rest.

15. The combination with the adding device including carrying devices and a restoring bar and a universal bar, of an operating member, a power shaft directly connected with the universal bar, a side bar advanced by an actuator, spring-actuated means connecting the power shaft and the side bar or ganized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to norbar and the carrying device arranged to operate the carrying device by the side bar after the universal bar comes to rest. and connections for operating part of the adding device by the side bar after the universal bar comes to rest.

16, The combination of an adding device,

a universal bar, an operating member, a power shaft directly connected with the universal bar, a side bar advanced b v an actuator, means connecting the power shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position. and connections between the side bar and the adding (lovice arrangcd to operate the adding device by the side bar after the universal bar comes to rest.

17. The combination with the adding device including carrying devices and a restoring bar and a ui'iiversal bar, of an operating member, a power shaft directly connected with the imiversal bar, a side bar advanced l) an actuator, means connecting the power shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position, connections between the side bar and the carrying device arranged to operate the carrying device by the side bar after the universal bar comes to rest, and connections for operating part of the adding device by l the side bar after the universal bar comes to rest.

1537 The combination of an adding device, a universal bar, an operating member, a power shaft directly connected with the universal bar, a side bar advanced by an actuator. spring-actuated means connecting the power shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has re 1 turned the universal bar to normal position,

ator, spring-actuated means connecting the and position, connections between the side and also to cause initial advance of the side bar before movement of the universal bar, and connections between the side bar and the addingdevice arranged to operate the adding device by the side bar after the universal bar comes to rest.

19. The combination with the adding device including carrying devices and a restoring bar and a universal bar, of an operating member, a power shaft directly connected with the universal bar, a side bar advanced by an actuator, spring-actuated means connecting the power shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position, and also to cause initial advance of the side bar before movement of the universal bar, connections between the side bar and the carrying device arranged to operate the carrying device by the side bar after the universal bar comes to rest. and connections for operating part of the adding device by the side bar after the universal bar comes to rest.

20. The combination of an adding device, a universal bar, an operating member, a power shaft directly connected with the universal bar, a side bar advanced by an actuator means connecting the power shaft and the side bar organized and constructed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position. and also to cause initial advance of the side bar before movement of the universal bar, and connec tions between the side bar and the adding device arranged to operate the adding device by the side bar after the universal bar comes to rest.

21. The combination with the adding device including carrying devices and a restoring bar and a universal bar, of an operating member, a' power shaft directly connected with the universal bar, a side bar .idvrincul by an actuator, means connecting the power shaft and the side bar organized and UH]- structed to cause additional movement of the side bar after the power shaft has returned the universal bar to normal position. also to cause initial advance of the side bar before movement of the universal bar. connections between the side bar and the carrying device arranged to operate the carrying device by the side bar after the universal bar comes to rest, and connections for operating part of the adding device by the side bar after the universal bar comes to rest.

JASON C. LOTTEllllAXD.

\Vitnesses 'ILLIAM H. REID, G120. C. BURBANK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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