US773057A - Computer and printer. - Google Patents

Description

No. 773,057. PATENTED OCT. 25, 1904. W. H. CLARK.

COMPUTER .AND PRINTER.

APPLIOATIONIIILED DBG. 9, 1898.

N0 MODEL. v 11 SHEETS-SHEET 1.

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No.1773,057. PATENTED OCT. 25, 1904. W. H. CLARK.

COMPUTER AND PRINTER.

APPLIQATION FILED DEO. 9, 1898.

No MODEL. 4 11 SHEETS-SHEET 2.

WTNESSES /72 n VENT? 7i. By

A TTORNEYS.

PATENTBD OCT. 25, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DBO. 9, 1898.

11 ISHEETS-511mm' s.

No MODEL.

INVENTOH w/TNESSES HLW.;

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VPATENTED 00T. Z5, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DEG. 9. 1898.

11 SHEETS-SHEET 4.

N0 MODEL.

I nventor: @AMM w46/ Attorneyl',

Witnesses:

E FSM/ull. 5. @EMM PATBNTED OCT. 25, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DBO.9,1-B98.

11 SHBBTS-SHEET 5.

N0 MODEL.

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Attorneyr,

Witnesses.

PATENTE) 0G11. 25,1904.

W. H. CLARK.- COMPUTER A1111 P111NTE11.

APPLIGATION FILED D110. Q, 1898.

11 SHEETS-slum' 6.

N0 MODEL.

Witnesses Attorneys.

PATBNTED OCT. 25, 1804.

W. H. CLARK. GOMPUTERAND PRINTER.

APPLICATION FILED DEU. 9, 1898.

11 SHEETS-SHEET 7.

N0 MODEL.

I nventor: WJ@

@r- 'wu' Attorneys.

N0 MODEL.

Witnesses.

y PATBNTBD OCT. 25, 1904. W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED Dnc. 9, 189s.

11 SHEETS-SHEET 8.

Inventor.

Attorney;

No. 773,057. PATENTED OCT. 25, 1904.

- W. H. CLARK.

COMPUTER AND PRINTER.

APYLIGATION FILED DB0. 9, 189s.

No MODEL. y 11 SHEETS-SHEET 9.

W itneSSeS- Inventor.'

AttOrneyJ.

No. 773,057. y PATENTED OCT. 25, l1904.

W. H. CLARK.

ACOMPUTER AND PRINTER. APPLIOATION FILED DEO. 9, 189s.

No MODEL. 11 sHBBTs-sHBET 1o.

Witnesses. Inventor.

Attorneys,

PATENTED 00T. 25, 1904.

W. H. CLARK. COMPUTER AND PRINTER.

APPLICATION FILED DEU. 9, 1898.

11 SHEETS-SHEET l1.

N0 MODEL.

-m H Hlm No. 773,057. i Patented October 25, 1904.

UNITED STATES PATENT OFFICE.

WILLIAM H. CLARK, OF ROCHESTER, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

COMPUTER AND PRINTER.

SPECIFICATION forming part of Letters Patent No.-773,05'7, dated October 25, 1904. Application ile December 9, 1898. Serial No. 698,798. (No model.)

To all whom it may concern: aside elevation of one of the computing-wheels Be it known that I, WILLIAM H. CLARK, a and certain of its appurtenances. Fig. 12 is 5o citizen of the United States, and a resident of a section on the line 12 12 of Fig. 11. Fig.

Rochester', inthe county of Monroe and State 13 is a top plan of the setting-bars and cerof New York, have invented certain new and tain related mechanisms, parts being removed useful Improvementsin Computers and Printon the line 13 13 of Fig. 8 to exhibit construcers, of which the following is a speciiication. tion. Fig. 14 is a partial rear elevation of 55 This machine is a complete computer and the machine with certain parts removed and printing device and is an improvement upon certain parts shownin section on the line 1414 Io devices heretofore produced by me; but many of Fig. 8. Fig. 15 represents an end elevaparts and arrangements in the machine contion of the cam-plate fr, and Fig. 16 represtitute more than mere improvements upon sents a similar View of the cam-plate nc. 6o said prior devices and are, in fact, new and The Inachine contains a key mechanism independent inventions. Y consisting of the iinger-pieces connected to 15 The object oi' the invention is to produce and operating longitudinally-movable bars, an improved and eilicient total-adding comwhich by displacement from their normal poputing-machine with a printing device capasitions of rest are adapted to be moved in 65 ble of printing the individual amounts regispaths whereby contact can be made with movtered by the machine and oi' printing the sum able setting parts of a registering mechanism.

2O total of the amounts registered. The movable bars are moved in a particular Theinvention consists in themechanisms and path upon each operation of the machine and combinations herein described and claimed. when in the ordinary position of rest do not 7o In the drawings, Figurel is a top plan view come in contact with the setting parts above of a machine embodying the improvements mentioned, but, as explained, when displaced set forth herein. Fig. 2 is a front elevado make such contact.

tion, parts of the casing and parts of the inte- In the form of device shown the longitudirior mechanism being' removed in order to nally-movable setting-bars A are pulled in 75 exhibit construction, the line 2 2 of Figs. 6, one direction by springs c, each bar being in- 7, and 8 showing the line on which the views .dependent of the others in its movements.

of the right and left hand portions of this fig- The bars A are held in the displaced or seture are taken. Fig. 3 is a top plan of the ting positions by means of dogs AC, which feeding mechanism for the printing-ribbon. snap into notches a0 upon the upper' edges of 8o Fig. 4 is a section on the line 4 4 of Fig. 3 said bars. The dogs A' are normally held looking in the direction of the arrow in the down either by gravity or by springs c. It

latter iigure. Fig. 5 is a rear View of the mais convenient, as in the construction shown in chine, the rear plate of the case being rethe drawings, that a single dog should be moved and some of the interior parts being adapted to engage all the bars relating to a 85 removed to exhibit construction. Fig. 6 is single denomination, although separate dogs an elevation ot' one end of the machine, the for each bar would be an equivalent form.

40 end casing-platebeing removed. Fig. 7 is an The set of dogs for all the denominations of elevation of the other end ofthe machine, the a machine constructed according' to my inend casing-plate beingremoved. Fig. 8issecvention are strung upon a bar am, and there 9o tion 'on the line 8 8 of Figs. 2 and 5 lookingI is a small amount of loose movement as bein the direction of the arrow in those iigures. tween the bar and each dog, so that the dogs Fig. 9 is a section on the line 9 9 of Figs. 2 may engage in the notches of the setting-bars and 5 looking in the direction of the arrow in without affecting the position of the bar upon those ligures. Fig. 10 is adetail view of part which they are strung. This loose connection 9 of the platen-setting' mechanism. Fig. 1l is consists in a slot t 2 in the dog and a pin 003,

extending from the bar am into the slot. (See Fig. 13.) lhenevcr in the operation of the machine it becomes desi rableI to (,lisengage all the dogs, the bar upon which they are strung' is turned by means hereinafter described, raising and disengaging all the dogs from the bars which have been set, and thus permitting' all the setting-bars A to return to their normal position impelled by their respective springs a. It will be noted as the further parts of the machine are described that the dogs A are released for a short time only at the end of the positive stroke of the motor or crank.

The front end of each setting-bar is connected to one arm of a bell-crank lever A10, that is suitably pivoted to the frame of the machine, and the other arm of said lever is connected to the stem of a key or {ingerpiece A2, so that when the finger-piece is depressed the setting-bar A is moved longitudinally until it is caught and held by its dog A, as above described. 'In the form of device shown there are two notches to in the upper edge of each settingbar A, in one of which the dog A normally rests and in the other of which the dog rests after the fingerpiece has been depressed and the bar is displaced.

The bell-crank levers Aw are formed with sleeves (1,10, which are strung' on rods (t100, running across the machine. (See Fig. 13.) The setting-bars are in each denomination graduated in leng'th, as shown in Fig'. 13, so that the linger-pieces A2, relating to each denomination, may be set in parallel rows, as shown in Fig. l.

The inner end of each setting-bar A is turned at right angles to its length, as at (L00, Fig'. 13, or has a lug upon it, the cheapest construction, however, being to make the bar thin in order to produce compactness of construction and to turn the end of the bar at right angles, as above described.

ln addition to the key mechanism just described the machine has asetting mechanism, a registering mechanism, and an operating mechanism. The free or rear ends of the whole series of setting-bars A of all denominations rest upon a universal plate or stirrup A, that is caused to rise and fall, by means hereinafter described, in order to make con? tact with the setting mechanism and to operate it. The time of the movements of the stirrup is at the beginning of the positive stroke of the motor or handle for reasons that will be explained. The stirrup A"i is hung at each end upon a pin (t3, that forms the connecting-pivot to one arm of a bell-crank lever ai, the fulcrum of (see Figs. 6 and 7) of said bell-crank lever being' a rod passing' across the machine and through the end frame X X of the machine and outside thereof. I he other end of this bell-cranklever is provided with a friction-roller fr" and 1s operated as will be described. There is one of these bellcrank levers at each end of the machine, so that the stirrup rises and falls evenly. The weight of the stirrup is sufficient to return it to place after it has been raised; but a spring may be employed in place of gravity or to assist it, if desired.

The general system of the registering m echanism of this machine is of the ball variety, such as is well known from my prior United States patents, although it is greatly changed in certain respects, as will clearly appear. rl`he balls in this machine move in circular paths in a groove or way B, formed in the periphery of a ring. ln the present embodiment of my invention this ring is the rim of a wheel B, and the wheel moves with the balls to force them around in their paths. After the wheel has moved to the proper degree the balls are held stationary while the wheel makes its further or non-registering movement.

In order to set the machine for operation, l provide a universal bar C, swinging about a center and inside the ring or rim of the wheel B above mentioned. Thisbar is common to all the registering mechanisms of the several denominations and has a uniform path of movement corresponding to the stroke of the power device or handle.

rfhi'ough the center of the machine passes the main shaft D, carrying at one end the crank D0 and handle 1)0 and also carrying near each end of the main shaft a cam-plate fn fr. rlhe two cam-plates are outside the end plates X X, which support various mechan isms of the machine. These two cam-plates are rigidly fastened upon the main shaft, and hence move together as if one, and to them are fastened the ends of the universal bar C above mentioned. Upon one of the camplates m, Fig. 7, is placed the ratchet-segment wladapted to engage with a fish-tail dog af, in order to compel full stroke of the operating device or crank after the handle has been started. Pins ml In, carried by the cam-plate, tilt the lever attached to the lish tail dog when either end of the stroke of the camplate is reached, and a spring' fr", having the wedge or tooth In upon it, engag'es on one side or the other of the wedge-tail of the pawl and holds the pawl in the proper position for permitting the movements desired. Thus full stroke, first in the positive direction and then backward in the negative direction, is compelled with auniform forward and backward movement of the universal bar C and of the cam-plates :1; and .f/f.

Around the main shaft D and between the end plates X X is a sleeve D, that is fastened to the end plates, so as not to be moved either by the rotation of the shaft within it or by the rotation of the parts which surround it. Upon this stationary sleeve D is strung a series of the wheels B, one for each denomination, each having in its rim or periphery lOO A toward the pins.

the ball-groove B above mentioned. ball-wheel carries a setting mechanism for determining the amplitude of the arc of vibration by which a particular'number of units shall be counted by that wheel. This setting device (see Figs. 1l and 12) consists of a frame rigidly secured to said ball-wheel and having two brackets 5 50, (see Fig. 12), extending substantially at right angles to the plane of the wheel and formed in arcs drawn from the center of this wheel. Through these brackets pass a series of nine pins blo. supported and guided by the brackets. These pins are set in radii of the circle of the wheel and in the same plane and are impelled outward or away from the center of the wheel by suitable coiled springs H, surrounding the pins and in each case pressing against a collar or fiange 12 upon the pin and also against one of the brackets. Each pin is also cylindrical and is provided with a conical tooth 513, said tooth being made conical or circular in cross-section in order that it may engage in any position with a catch or dog, hereinafter to be described, and also for ease of manufacture. To the fr ame is fastened by suitable arms H a dog 61", which is universal as to each set of lnine pins. This dog when the pins are impelled outward by their springs and rest in their retracted positions rests against the outer surface of the cone; but when the pin is moved inward toward the center of the wheel the dog engages Linder the base of the cone and holds the pin in an extended position. Springs of suitable form, such as the flat spring 721, tend to keep the universal dog pressed inward The dog has an extension or arm on one end or at any suitable point, whereby it may be released from any of the pins that have been operated, as hereinafter described.

The sets of setting-frames above described are preferably set in line across the machine and at substantially the lowermost point of each of the ball-wheels and are immediately above the rectangular bent ends 400 of the setting-bars A above described. In the normal position of the parts the ends of the pins do not register with the ends of the setting-bars, (see Figs. 8 and 9;) but when any setting-bar is displaced from the normal position by the depression of its finger-piece the end @00 of said bar is brought under the end of its pin, and when the stirrup A3 is raised that bar @00 will make contact with the end of the pin and will raise it until it is latched in its projected position by the universal dog 515 above described. No other pin, however, in that denomination will be moved, because the bent ends tooof the setting-barsA are so adjusted as to pass between pins without making contact with them. If now the universal bar C within the ball-wheels is swung through its arc, it will strike the pin b1", that has been projected into the path of said bar, and on account of Each the position of the projected pin lo the ball-` Wheel will be moved through an arc corresponding to the value of the pin, because the bar C always moves through a denitc arc. It will be noticed that the pins bw are set in a plane parallel to the plane of movement of the ball-wheel and that the universal bar has a constant path of movement, ending against a stop. If 9 is to be counted, a pin is projected into the path of the universal bar by the means above described and is the pinnearest to the normal position of rest of said bar. Thus this 9 pin is the first against which the universal bar can strike, and hence the bar C swings the wheel B through the maximum stroke or arc of movement of the Wheel. The l pin is set farthest away from the normal position of rest of the universal bar C and is the last pin with which said bar could come in contact, thus making the distance from the point of contact to the stop the shortest arc of movement of which the wheel is capable. In Fig. l1 thc 6 pin is shown projected into the path of movement of the universal bar C.

1n order that in operating the machine quickly the stroke of the universal bar against a raised pin may not drive the wheel with greater speed than the bar, l provide a latching device (shown best in Fig. 11) that locks or connects the universal bar to the ball-wheel. Upon the universal bar is a dog co1, that is operated either by gravity or by a spring to engage with a series of ratchet-teeth 601 upon the ball-wheel B or, as shown, upon the pinframe b. When the bar C strikes a pin, the dog 001 engages a tooth of the ratchet 501 in such a position as to lock the bar against the pin and to prevent either forward action of the ball-wheel with reference to the universal bar ora rebound of the universal bar from the pin. 1n order to operate this dog, a convenient mechanism is shown, in which the dog 001 has a projecting V-shaped tail co2 adapted to engage with the V-shaped tail of a small bell-crank lever co3, also carried by the universal bar C. This bell-crank lever is held by a spring c in a position adapted to engage with the V-shaped tail of the pawl. The other arm of the bell-crank lever C03 is adapted to engage with a stationary hook-shaped bunter 005, which holds said arm of the lever Q03 down and swings its V-shaped arm forward and out of the path of movement of the tail c02 upon the pawl co1. If the pawl co1 is in its lowermost position, its V-shaped tail engages in front ofthe V-shaped arm or tail of the bellcrank 003, and the spring c, operating' upon the bell-crank co3, will therefore latch the pawl co1 in its lower or engaging position and hold it in this position by the elastic pressure of the spring c, which operates the bell-crank. As soon as the universal bar C begins to move the bell-crank co3 is released from its bunter co5, and its spring e0* presses the pawl dol with an elastic pressure against the ratchet-teeth,

IOO

IOS

thus being adapted to latch the parts as above desci'ihed. As the universal bar approaches the limit ot' its positive stroke a stationai'y bunter c strikes the tail e0 ol the pawl, d rives it past the tail of the bell-crank levei' cm, and thus latches the pawl in a raised position, whereby it cannot engage' the ratchet-teeth, and thus a Free i'eturn stroke ot' the parts can occur. lt will be observed that the universal bar has a uniform sti'oke, but that the hallwheels have variable strokes, according to the amount to be computed thereon.

Each ball-wheel B carries on its lowei' portion a dog 7)', (see Fig. 8,) that projects into the gi'oove B, wherein the balls Y move, and at a suitable point in the upper part ot the machine another but stationary dog 7f3 is pi'ovided 'for each ball-groove, the whole series oi which dogs b2 are hungloosely to the t'rame of the machine upon a suitable cross-bar A second stationary dog is pi'ovided for each ball-groove and projects into the same in the lowei' part of the wheel conveniently in a position opposite to that ot' the dog lirst above mentioned. The Stationary dogs 71" are 'fastened upon a shaft extending across the machine, and are moved positively in and out of the ball-groove B in oi'dei' to hold the balls stationary during the return movements ot the wheel. The shaft 0" is rocked upon each movement of the cam-plate fr' by a pawl bom. This pawl is normally held in the position shown in Fig. 6 by a spring 0, The camplate 6 is mountedv on the plate fi: and is formed at opposite ends with cain-shouldei's which engage and i'ock the pawl LD50 in opposite directions in a manner well known in the art. It' the ball-wheel B' is revolved by the means above described thi'ougli an ai'c corresponding, for instance, to six balls, the dog upon the ball-wheel holds a number ot balls stationary with reference to said wheel, but Yforces them past the stationary retainii'ig-deg If at the upper pai't of said wheel, so that these balls pass onward into that portion oi: the groove devoted to the registering` or computing. rIbis occurs on the forward stroke of the wheel, which takes place in the direction ot' the arrow in Fig. ll. 1l" now the stationary dogs at the lower part of the wheel ai'e brought into engagement with the balls in the groove and the wheel is tui'ned backward, the whole series et' balls in the groove remain stationary, while the wheel returns to its normal position.

Il a key A, representing` i 6, is depressed and the coi'i'espomling pin /im is raised, the universal bar C passes ovei' the ends of pins representing 7, I

pin representing L(, swings the ball-wheel B through six oi its ninedegreesof moven'ient until the universal bar C strikes against the ends of the slots C in the end plates X X', through which said bar passes. B is thus moved through an ai'c equal to six 8,and "9, strikes against the i The wheel i times the diameter ol' a single ball upon the wheel, and in the series of halls six halls ai'e forced past the retaining-dog at the top and lall down in the registering-channel.

it will be noticed that the groove in that portion o l the wheel la at the back ot' the inachine and extending between the retainingdog /2 at the top and the dog b', carried by the wheel, is always lnll ot' balls and that consequently when the wheel moves in its positive dii'ection one or more halls must be pushed past the retaining-dog /fi at the top. A suitable vacant space is lett in the groove by adjusting the number otl halls pi'operly and in l'illing the saine. This space it has been YFound in practice must be equal to at least twenty ball diameters and is preferably greater than that in order to give a place for registering strictly and a space t'or retaining the balls he- Ytore permitting them to di'op into the registering portion Bm, Fig. il, et' the groove.

ln oi'dei' to release universal dogs /Uol: the pin-trames, .lV provide a bar/i, running across the machine and provided with a sei'ies ot' pins fil, (see Figs. 8 and 12,) one t'or each dog bl, and adapted in the normal position ot' rest to stand adjacent to the sides of the extensions oi' arms t upon universal dogs. A liter the return or negative stroke ol the machine the bar /fH is moved endwise. The pins come against the arms /i7 o't' the respective dogs, move them outward, so as to disengage Yfrom the cones or teeth f" upon the pins /m, and permit the pins to be moved hack to their original positions by their springs iI. In oi'- der to operate this bar, l provide a pin 6m, Figs. 2 and 13, extending sidewise Yfrom the end ot' the bai' outside the end frame X ol: the machine, which pin extends into a spiral cam-groove in the hub b2" of a tilting 'traine 62.1, Fig. (5. The hub 7X bears against the end trame X, and when the trame /f is tilted the bar i will be moved ei'idwise. The Yframe /fl carries upon it two rollers, which ai'e adapted to engage with a tilting yoke U on the camplate fr' lier operating the same. This yoke lf2 is pivoted upon the cam-frame and is pulled in one direction by a spring' b2", so that the yoke rests against a stationary stop or pin /i on the cam-frame. Then the cam-'Frame ,1' moves in the positive direction, the yoke 6"l passes over the tilting lrame without actuating it; hut when the cam-plate is moved in the return or negative direction one arm ol' the yoke engages with one ot the rollers on the tilting trame ff, tilts the li'ame partially, thus causing the other rollei' to enter in hetween the arms o t the yoke, and, the movement ofthe yoke still coi'itinuing, the second ai'in ol. the yoke engages the other i'ollei' et the tilting trame and causes a Ylurther tilting' oi the tilting' traine. The employn'ientotl the two rollers and ot' the yoke causes a greater ai'c of movement ot the tilting' trame, and thus a greater longitudinal movement of the TOO IlO

bar lsforreleasing the universal dogs. This could be the case if a sing'le roller on the tilting frame and a single bar (instead of the yoke) were employed; but the double construction seems preferable. The tilting frame is carried back to its initial position by a suitable spring' The foregoing describes all the movements which relate to the computing operations in each of the denominations, but does not include the carrying' mechanisms,which are now to be described.

Each ball-wheel B carries a carrying-lever E', having a changeable fulcrum, and which is curved to conform to the circular form of the ball-wheel and is connected to said ball-wheel by means of a guide-stem E', resting and adapted to slide in a slotted block c, fastened upon the ball-wheel. (See Fig. l1.) The lever about at its middle is pivoted at e to the guide-stem, and thus may tilt upon the stem. The lower end of the lever E is provided with a pin e2, that extends into the groove B in the ball-wheel B so far as to check and retain any balls which drop against said pin. At or near the pivotal point of the carrying-lever upon the stem is another pin @3, adapted to move into the groove of the ball-wheel whenever the lever is depressed at its middle. This pin e3 is placed at a position so far distant from the pin c2 upon the end of the carrying-lever that when a number of balls rest upon the last-mentioned dog, representingthe maximum of the denomination to which that ball-wheel relates` the pin e3 at the middle of the lever will when depressed rest upon a ball, thus holding it in the groove, tilting the free end of the lever and lifting the pin e2 at its end out of the groove and discharging all the balls below that one which is pinched or clamped by the pin e3 at the middle of the lever.

The end of the lever opposite to that bearing the retaining-pin e2 is operated by a universal :arrying-frame F, that extends across the machine and to which is connected all the carryinglevers of the different denominations. This carrying-frame is moved at each operation of the machine and has a series of slots f, Fig. 2, parallel to the lines of movement of thc carrying-levers, and a screw or bolt c" passes through each slot f and into the block upon the end of the corresponding carrying-lever. It is now obvious that when any ball-wheel is moved its carrying-lever E is oscillated with it and the bolt or screw e* moves along the slot f in the carrying-frame.

The carryingframe is operated at each movement of the machine by devices upon the cam-frames a' m', above described. From the ends of the carrying-frame there project outwardlythrough openings in the end frames XX' pins f ',carrying friction-rollers f2. (See Figs. 6 and 7.) These friction-rollers are in the paths of swinging cams f3, Figs. 6 and 7, carried by the cam-plates :r These carrying-frame cams f3 are normally held inward against the cam-plates by springs f* and are pivoted to the cam-plates, so as to swing to and from them. Each swinging cam has an inclined cam-surface f5, which at the first portion of the stroke of the cam-plate quickly depresses the carrying-frame, and continuous with these inclined surfaces are surfaces f concentric with the cam-plate, whereby the roller f2 and carrying-frame F are first depressed and then are held in the depressed position through the forward positive stroke of the cam-frame. At the end of the forward stroke of the cam-frame a bunter f7 on the end frameXX' acts upon the end of the swinging cam, compressing the spring' f4 of the swinging cam and forcing' the cam from engagement with the friction-roller.

Suitable springs f8 raise the carrying-frame ,to its normal position as soon as this release occurs, and themovement of the carryingframe brings the rollers f2 behindthe swinging cam, so that the cam presses against the outer end of its roller during its return movement and until the inclined portion of the swinging cam permits it to pass the edge of the roller, whereupon the spring f* carries the cam back to its inital position.

Each carrying-lever E is connected by a link e5 to one arm of a bell-crank lever e6 upon its ball-wheel B. The other arm of said bellcrank lever e has a pin e7 projecting' therefrom and into a position adjacent to the wheel of the next higher denomination. The bellcrank levers are moved to their normal positions by springs e, which tend to pull the free ends of the carrying-levers .inward toward their ball-wheels and to set the pins e2 on the ends of the said carrying-levers in the ball-grooves of the wheels.

Upon each ball-wheel is a sliding plate G, (see Figs. 9 and 11,) through which the hub B2 of the wheel B passes. The perforation g through the plate (J, which encompasses the hub B2 of the wheel, is an elongated slot, so as to permit the radial movement of the plate upon the wheel. A guide-pin g, passing through an elongated radial slot g2 in the plate and into the wheel, acts as further guiding means for the movement of said plate. Each plate has at its upper end a curved slot g3, that is cut upon a radius drawn from the center of the wheel. and into which the pin e7 of the bell-crank lever e of the wheel B' of the next lower denomination constantly projects. Consequently whenever the free end of the carrying-lever E is moved outward or away from the center of its wheel the plate G upon the wheel of the next higher denomination is moved downward. Upon the universal bar C is pivoted a movable block c' for each operating-wheel of the machine. This block is adapted to be moved in front of the universal bar C and has an end of such size that when upon movement of the universal IIO IZO

bar the end of the block comes in contact with l last mentioned preferably bears a frictiona pin or with the end of the slot in the wheel l roller that runs over the cam, and the bar through which the dog moves it will move said wheel one ball-diameter more than its normal movement, or if no pin is set it will move the wheel through one ball-space. This block is operated by a pin c?, extending therefrom into a curved slot (7" in the sliding plate Gr of its denomination, so that when the free end of a carrying-lever E is moved outward the link J and bell-crank lever c upon the wheel B of any denomination operates the sliding plate G upon the wheel of the next higher denomination, and the block cf is moved into the path of the universal bar C, so as to add or carry one ball in the groove B of said higher denomination. It will thus be seen that whenever balls representing the maximum of any denomination have accumulated upon the pin @2 at the end of the carrying-lever the pin ff' at the middle of the carrying-lever on depression of the carrying-frame F tilts the carrying-lever and pinches the operating or dead ball Y', representing said maximum, (see Fig. 11,) lifts the free end of the carrying-lever, discharges all the balls beneath the pinched ball, and one ball is carried into the registering portion of the ball-groove of the wheel of the next higher denomination. Of course this one ball represents the value of the balls discharged in the wheel of the next lower denomination.

The carrying operation always occurs upon the operation of the machine next succeeding the operation by which the balls equal to or exceeding the maximum of any denomination are accumulated in theball-groove of the denomination.

It is obvious that it is convenient and best that the ball-wheels should always be set in order to return to their normal positions of rest, so that the dog L", that holds the balls stationary during the return of the ball-wheels, may enter exactly between the balls and not strike upon any, and for this purpose I provide acenteri-ng and locking device as follows: Upon each wheel B is a series of ratchetteeth B, and across the whole series of wheels is a bar Bl, having a sharpened edge adapted to move into the spaces between said ratchetteeth. These teeth are accurately spaced and beveled and placed so that when said bar enters the spaces between the teeth to its full depth the wheel is exactly centered for the pu rpose above described. The bai-Bi is hung by arms B upon a rod B", passing' through and journaled in the end plates X X, and the bar normally pulled inward toward the ratchetteeth by one or more springs (not shown) fastened to the arms and to the end plates of the machine. The locking and centering bar B'l is moved by a cam fr?, Fig. 6, upon a camplate fr at one end of the machine, engaging with an arm BT, fastened to the rod upon which the locking-bar is hung.

. contacts, w, upon the cam-plate ,f1/

is thus moved inward and outward at such times and for such periods as may be found desirable. This centering' device also brings the pins 51 of the pin-frames into their proper positions with reference4 to the ends m0" of the key-bars.

The locking-bar is engaged with the ratchets in the normal position of rest of the machine, as shown in Figs. 8 and 9, and is not lifted out therefrom until after the stirrup A has risen and set the pins. The locking-har Bl is kept out ot' engagement with the latch until the end of the positive stroke of the power device or handle, at which time it is thrown into locking engagement, thus holding the ball-wheels in position for the stationary dogs 7)* to hold the balls stationary while the wheels are returned. During the negative or return stroke of the power device or handle the locking-bar is lifted eut of its engagement with the ratchets and is held out of engagement until near the end of the return or negative stroke of the handle. The purpose of this timing of the parts is to permit the movement and return of the ballwheels to center the ball-wheels at the beginning of the positive stroke in order to cause the proper setting' of all the parts connected with the ball-wheels for the position of rest and to set all these parts accurately at the end of the positive stroke of the handle for alike purpose.

l employ a cam nel, as above stated, for operating the locking-bar, and this cam is sulficicnt for the purpose; but in order to produce a longer disengagement of the bar from the ratchets and a quicker engagement of said bar therewith I may employ a supplementary device consisting of a double-acting stop B", pivoted to the end plate ,f/f, Fig. 7, of the frame and adapted to be tilted in each direction about its pivot by contact arms or stops 115:13 upon the cam-plate. rlhis stop is always pulled by a spring 7)", that tends to bring it to a central position and to set its outer end under the arm or extension /o of the lockingbar, whereby the locking-bar is held away from the ratchets; but upon the stop being struck by either of the contacts on the camplate the stop is tilted, releasing the bar therefrom and permitting it to drop quickly inte the ratchets.

The full operation of the combination of the cam and stop on the locking-bar is as follows: In the position of rest the stop Bx rests upon the upper side of the arm or extension 72"" of the locking-bar, as shown in Fig. T, having been tilted into this position by one of the On the positive stroke of the handle the cam n] lifts the locking-bar B'L out of engagement with the ratchets B, and at the same time the The arm B7 l spring 7) upon the stop Bs brings it under the lOO IIO

, of the pin-frame.

arm 54 of the locking-bar, so that as the motion of the handle progresses the locking-bar drops upon the outer end of the stop BS, and thus remains out of contact with the ratchets until the other contact, m80, upon the cam-plate tilts the stop, moves it out from under the bar, and permits the bar to drop suddenly. On the return stroke the cam m7 again lifts the locking-bar out of the ratchets, the stop is brought b vits spring underneath the locking-bar, the locking-bar rests upon the end of the stop and out of engagement with the ratchets, andat the end of the stroke the contact m8 on the camplate tilts the stop and permits the locking-bar to fiy in. This stop device, while convenient, is not necessary to the operation of my machine.

Upon each cam-plate a; and w is pivoted a tilting cam 9030,. normally held against a stop m33 by a spring This cam m30 acts upon the roller f2 on one end of the bell-crank lever @30, that raises the stirrup A3 for lifting the setting-bars A, that act upon the pins b1 This cam x30 acts to lift the stirrup A3 as quickly as possible after the handle starts and rests against its pin in order to produce a positive and powerful action. On the return stroke, however, the cam 023 tilts and passes the roller @32 without moving the bell-crank a3.

In order to repeat a computing operation of the machine, I place upon the bar 618, that bears the pins 1 for releasing the universal dogs 515 of the pin-frames a crank Z230 and a link 31, (see Figs. 7 and 13,) which are pulled in one direction by a spring Z232. To the end of the link 31 I attach one arm of a bell-crank lever 533, the other arm of which is attached to the stem of a linger-piece A4, which passes upward through the keyboard-plate of the machine. A notch afin the stem of the key or finger-piece AAl is adapted to engage the edge of the perforation in the keyboard-plate A" in order to hold the key-stem down and to hold the crank L30 upon the bar 618 in its abnormal position. The spring 7132'tends to pull the link in the other direction, and I. provide a stop 3* upon the frame and a lug 635 upon the link, which in the position of rest are in engagement with each other. On depressing the finger-piece and engaging' the notch in its stem in the edge of the perforation in the -keyboard-plate A5 the bar 61S, carrying the pins 1", is rotated through Van arc sufiieient to move the pins out of any possible engagement with the universal dogs 515, and consequently the pins 721, that have been operated, remain raised, and the operation of the machine is repeated as many times as may be desired and until the notch a* in the stem of the finger-piece is released and the linger-piece, -link 31, crank 3, and rod .7)18 are returned to their normal positions by the spring 7232, that acts upon the link.

In order to reset the keys A2 in case a wrong key has been depressed, I provide a key A, Fig. 1, extending up through the keyboardplate A5 and attached to one arm of a bellcrank lever a6, (see Fig. 6,) the other arm of which is attached to a link a6", connecting with a crank am upon the rod om, that bears the series of dogs A for holding the longitudinallymovable setting-bars A in their set positions. A-spring @62, acting upon the link am, bellcrank lever, or key-stem, tends to retain these parts in a normal position; but when the keystem Abv is depressed the rod am, carrying the series of dogs, is turned, and all the dogs are moved out of engagement with the settingbars, permitting the latter to return to their normal positions of rest by the operations of the springs a.

At each operation of the machine a pin m on the cam-plate rv (see Fig. 6) strikes a lever L63 on the bar am, tilts the bar, and releases all the dogs A from the operated setting-bars A. The bars are returned to their initial positions, as just described. I thus provide for an automatic and a non-automatic resetting of the operated keys.

In order to reset the machine to Zero, I provide a bar H, running across the machine through openings in the upper portions of the ball-wheels and journaled in the end plates X X and provided with a series of arms t, having projecting studs t, one for each ballwheel, and adapted when the bar H is rotated to strike the tops of all the sliding plates (i upon the ball-wheels and to depress them. A handle H is provided on the outside of the machine for operating this bar. Upon operating the handle H and turning the bar H the sliding plates Gr are all depressed, and the carrying-levers E, through the bell-cranks a and links e5, are moved outward from the periphery of the ball-wheels, thus lifting out the pins e2 upon the carrying-levers and disengaging the balls, which rest upon said pins, permitting the balls to run downward in the channel. This 'fills the vacant ball-spaces in the registering-channel B10 below the pins c2 up to their maximum. The same operation or depression of the sliding plates G moves the dogs c in front of theuniversal bar C and upon operation of the machine brings one ball from the stored balls in the back of each wheel into the channel B in front to be caught and held upon the pins c2 on the ends of the carrying-levers E.

It is well known from my prior patents relating to ball-registers, as set forth in my prior patents and applications, that a deadball or an eleventhA ball is always employed as an operating ball and not for computing. Thus operating the machine while holding the handle H in its turned position the sliding plates Gr are actuated, and the registering portionsA B10 of the ball-channels are filled, and the dead-ball is replaced on the pins of each ball-wheel, and thus the machine is reset to Zero, it heilig' observed, however, that in this l der to pern'iit the connection from the widelyoperation of resetting to Zero the handle ll is held turned long enough only to hold the plates G depressed until the universal bar with its depressed dogs c, can move each of the ball-wheels simultaneously one space, and thus force forward the dead-ball for each wheel, whereupon the handle H is immediately released to permit the plates G, and therefore the carrying-levers Eto be returned to normal position, with the pins ff returned into the ball-channels in time to arrest the dead-balls, this being' the normal Zero condition of the machine, as shown in Fig. il.

Having now described the setting' and registering mechanisms,the resetting' mechanism. and the repeating mechai'iism, the remainder of the machine consists in aprinting mechanism for printingl the amount of cach operation of the machine and a mechanism for printing the sum-total ofthe several amounts theretofore registered and printed.

The printing mechanism consists, broadly, of a series of type-carriers, an impression mechanism, a platen-setting mechanism, and a paper-feed mechanism. These mechanisms are all operated by the same power device or handle which operates the registering devices in the machine.

The type-carriers are set by the movements of the ball-wheels and proportionately to the movements thereof. ln the case of a carrying operation performed by any ball-wheel the setting of the type-carrier must d itfer from the setting of the ball-wheel, and provision is made that under those circumstances the typecarrier is set in the same manner as if no carrying were occurrinv'.

The type-carriers are all set normally to print zero at the printing-line, and in order to prevent the printing of the zeros indenominations above that of the highest-ballwheel which is set .l provide a movable platen, which is at every operation of the machine moved transversely to the line of print and in a direction beginning' with the lowest denomination and so far as to register with only those type-carriers that have been set in consequence of the setting' operations of the machine. Vith this system of operating the platen the ciphers of higher denominations than any set-key will not be printed.

The type-carriers in the present embodiment of my invention consist of a series of segments J, (see Figs. 8 and 9,) one for each denomination, pivoted upon a table or crossplate Z, resting upon the end plates X X of the machine. The type-segments have type j' on their peripheries and are capable of oscillation in vertical planes, beingl hung on a bar J, set transversely of the machine and in the upper part thereof. Each type-segment is connected to an arm or lug by suitable links y", (see Fig. 8,) which are bent in the present instance, as shown in Fig. lf-t, in orseparated ball-wheels B to the more narrowly and compaetly arranged type segments. rlhese links j might be directly pivoted to their ball-wheels; but for certain reasons, which will be developed later, each link is connected to an arm or lever/'2, which is hung upon a hub of each ball-wheel B and is capable of oscillation with reference thereto. A side arm or extension j from said level' jT2 normally rests against a pin ff, projecting from the sliding' plate ol' the ball-wheel B of that denomination, so that when the ball-wheel is moved to perform a registering operatitn'i the lever is moved to a corresponding degree, and thereby the type-carrier is set with a type at the printing-line correspol'iding to the value registered upon that ball-wheel. Vlf, however, a carrying operation is occurring upon that ball-wheel and the sliding plate (lr is lowered, as above described, the pin r/" upon the sliding plate moves out of possible engagei'nent with the side arm or extension j of tln` lever, and another pin, upon the ball-wheel B comes in contact with the lever and moves it to set the correct type on the ty pe-carrier. On account of the extra motion of the ball-plate that occurs in a` carrying operation it becomes necessary to reduce the movement of the lever je, that controls the operation of the typescgments, to an arc less than that of the movement of the ball-wheel by exactly the amount of that extra carrying movement, and therefore while the pin y upon the sliding plate G is normally in contact with the side arm or extension j of the lever j, that operates the type-carriers, the pin /f upon the ball-wheel B is set in such a position that the ball-wheel must move to an extent equal to one typespace upon the periphery of the type-carrier before this pin meets the lever and moves it. The links j are of course pivoted to the typesegments J in any suitable way. A convenient mode of pivoting a link to a type-carrier is to form a large head j", Figs. 8 and t), on the cnd of the link and to set the head j" in a somewhat larger perforation through the type-carrier. A narrowed portion of said perforation, however, passes around the large heady'0 of the link. The head j" is held in place by means of thin plates ,/"l", fastened upon the sides of the type-carrier, and incloses the head j in the perforation.

The inkingribbon 1C) passes in a wellknown manner across the faces of the typecarriers J and is provided with suitable guides to keep it in proper relation to the type. Various mechanisms may be employed for feeding fresh portions of the ribbon to the printing-line; but a convenient device for this purpose is now to be described. I provide two drums K K', on which the two ends of the ribbon K0 are rolled. Said drums are revoluble upon axles Z; /r at right angles to TOO IIO

the plane of movement of the ribbon. Automatic devices operate one or the other of these drums, as desired, to cause them to act correspondingly and to cause a gradual feed of the ribbon across the type. Upon the axle of each drum K K7, Figs. 3 and 4, is placed a ratchet-wheel 7:2and an arm 71:3, capable ofoscillation upon said axle, and upon the arm is a spring-actuated drivingpawl 714, adapted to engage with the ratchet-wheel and to cause its rotation when the arm is oscillated. Another pawl 765, pivoted upon a stationary support, is normally held in engagement with its ratchet-wheel by a spring for the purpose of preventing backward rotation of the ratchetwheel and drum. The arms carrying the driving-pawls 7c* are connected together by a link 7r, and said link is connected to a driving-bar 7:7, held in suitable guides underneath the typeplate of the machine and normally pulled in one direction by a spring kg, Fig. 2. The connection between the driving-bar 707 and the link 7u is a pin 7:, Fig. l, upon said drivingbar and extending through a slot 751 in the top plate Z and into a socket or perforation in an arm 7cm, carried by the link. The driving-bar 7:7 is operated by a lever 7c, Fig. 2, pivoted on one of the end plates of the machine and having one end pivoted to the end of the driving-bar and the other end in the path of a cam m2", Figs. 2 and 6, upon one of the cam-plates. Whenever the machine is operated, the cam-plate oscillates, the cam x20 operates the lever/U12, which moves the driving-bar 7:7 and puts its spring 7r=8 in tension, moves the link 7; and the pawls 7114 on the arms 7e3, and drives the ratchet-wheels 7a2 and the drums K Kl in a manner hereinafter explained. Then the cam x20 on the cam-plate is disengaged from the lever 7012, the spring 758, connected to the driving-bar 707, returns the parts to their initial positions.

vI will be noticed that the ribbon K0 is wound upon the two drums K K7 in the same direction, and consequently the two drums may revolve in the same rotary direction whichever one of them winds the ribbon upon it provided the other drum is free to revolve without action of the pawls. In order to disengag'e the pawls 7i:vit from one or the other vof the wheels, as may be desired, I provide a cam-plate 7;, set free upon each of the drumaxles 7c 7L, which when turned to the proper position holds both dogs related to that drum away from the ratchet-wheel; but by means of depressions or notches therein when the cam 7i'13 is turned the pawls 7i;4 7J may rest in the teeth of the ratchet-wheel 7a2. In order to turn these cams alternately,` so that when one excludes the dogs from operation upon its ratchet-wheel the other permits the dogs to engage the ratchet-wheel, I provide abar cH, movable in suitable guides 761.5 on the top plate Z and pivoted to an arm 7017 of each of said cam eplates, the arms 7x11 and pivotal points being so adjusted that when one cam is in operation the other is not. The bar 7,21*, just described, is set into one or the other of its positions by means of a lever 7:17, supported upon the top plate Z of the machine and operated by a suitable finger-piece 7tlg. The lever 7f17 moves horizontally and engages in a notch 7617 in said bar, so that when the lever is turned into its positions the bar follows.

The platen-frame L is fixed upon a crossrod or shaft L', which is journaled in the end plates X X of the machine and is operated by a lever-arm Z, Fig. 7, on said shaft L7, a link Z7, connected with said arm, asecond link 72, connected at one end to the link 77 and pivoted at the other end at Z3 to the end plate X. A spring 74 pulls the arm 7 in a manner to move the platen-frame normally away from the type-segments J. A tripping-dog 7" is pivoted upon the cam-plate and is normally held against a stop 7 on said plate by a suitable spring 77, so that when the cam-plate is moving in the positive direction the dog passes freely over a pin or roller 7S upon one of the links connected to the platen-shaft, (the link 77;) but when the cam-plate moves in the negative direction the dog 75 strikes solidly against the pin or roller 7B and moves the link, so as to tilt the platen-shaft, and with it the platen-su pport and platen, to make a printing impression against the type. If it is not desired to omit the unnecessary ciphers from a printed line, the platen may be a stationary platen fixed on `the platen-frame L, and the paper is pressed by the platen against the inking-ribbon, through which the type makes an impression in the usual manner.

In order to center and hold the type-carriers J in their proper positions, l provide a centering and locking bar jm, (see Figs. 8 and 9,) fixed upon the platen-shaft L by the arms ju and having a sharpened edge, whereby it is adapted to enter between ratchet-like teeth jm upon the type-carrier. For convenience of arrangement these teeth are cut in and through the type-carrier in a line concentric with and back of the periphery and have between their pointed extremities and the adjacent solid portion of the type-carrier a slot whereby the type-carrier J may oscillate. While the locking-bar flo is tilted by the oscillation of the platen-shaft the lockingbar enters between the sharpened teeth on the type-carriers, holding those which are setin their set positions and also holding those which are not set in 'their unoperated positions.

The platen-operating mechanism is so set as to operate at the first portion of the return stroke of the power device or handle, so that the printing impression occurs before it becomes necessary to move any of the parts of the machine in order to return them to their initial positions. rI `he locking-bar for the type-segments moves with the platen and sub- IOO IIO

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