US473694A - Cash indicator and register - Google Patents

Description

(No Model.) 5 Sheets-Sheet 1v H. COOK. CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

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CASH INDIGATOR AND REGISTER. No. 473,694. .3 Patented Apr. 26, 1892.

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H. COOK. CASH INDIUATDR .AND REGISTER. No. 473,694. Patented Apr. 26, 1892.

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H. COOK.

CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

H. (300K. CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

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UNITED STATES PATENT OFFICE.

HUGO COOK, OF DAYTON, OHIO.

CASH INDICATOR AND REGISTER.

SPECIFICATION forming part of Letters Patent No. 473,694, dated April 26, 1892.

Application filed February 5, 1892. Serial No. 420,411. (No model.)

To cold whmn it may concern:

Be it known that I, HUGO COOK, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Cash-Registers, of which the following is a description, reference being had to the accompanying drawings, forming part of this specification.

{0 My invention relates to machines of the general character of those shown and described in my patents, Nos. 4695A and 469,545, of February 23, 1892, in which machines the indicator and registering wheels each revolve IS in one direction only and are actuated by a driver which likewise revolves in one direction only.

My present invention consists in new combinations, constructions, and arrangements of parts incident to the further development of the machines shown in my aforesaid patents, all as will be hereinafterset forth, and specifically pointed out in my claims.

In the accompanying drawings, Figure l represents a front elevation of my improved machine; Fig. 2, a rear elevation thereof with the rear side of the casing removed; Fig. 2, an enlarged rear elevation of the driver; Fig. 3, a vertical central section of the machine 0 on the line 3 3 of Fig. 2, looking toward the right of the machine in that view; Fig. 3, a vertical section of the driver, showing a rear view of the cam-groove in its front side. Fig. 3 is a detail View of one of the keys or stops.

5 Fig. at is a vertical section of the machine without the base on the line 4 at of Fig. 3, looking toward thefront of the machine; Fig. 5, a corresponding view on the line 5 5 of Fig. 3; and Figs. 6 and 7, similar views, on

the line 6 6 and 7 7 of Fig. 8, respectively.

The same letters of reference are used to in dicate identical parts in all the figures.

The principal working parts of the machine are inclosed in a circular casing A, supported 5 in an upright position upon a suitable base 13. A central shaft O is journaled in the front wall of the casing and in a bearing supported in rear of said wall, as hereinafter explained. This shaft is revoluble in the direction of the arrow and has secured upon its front end a handle D for turning it, Fig. 1. Upon the opposite or rear end of the shaft 0, Figs. 2,

3, and 2, is secured what I term the driver, consisting of a disk E, provided on its rear face with cam-grooves and with a diametrical guideway, in which fits a sliding plate, to be presently described. This disk E is fast upon the shaft 0 and turns with it. Between the disk and the front wall of the casing are mounted upon or concentric to the shaft O various wheels, disks, cams, &c., as shown in the sectional view in Fig. 3. Immediately to the left of the disk E in said figure is a toothed wheel F, Fig. 7, fast upon the rear end of a sleeve G, which is loose on the shaft 0 and extends to the left in Fig. 3 toward the front wall of the casing, and has keyed upon its front end a large gear-wheel H and a toothed locking disk or ratchet I, Fig. 5. The wheel H is the driving-gear for the primary regis- 7o tering-Whecl, whose pinion J meshes with the gear H, as shown in Fig. 5.

Next to the left of the toothed wheel F, Fig. 3, is a radially-sliding bar or plate K, Fig. 7, having an elongated slot at its middle, through which the shaft O and sleeve G pass. Secured upon the right hand or rear face of this bar K, upon opposite sides of the central shaft, are two lugs or sets of teeth L L, which alternately co-operate with the toothed wheel F to drive the register in the manner hereinafter explained. Also projecting from the rear face of the bar K, beyond the vertical plane of the teeth L L, is a stud M, which fits in a cam-groove L in the forward side of the driver E, the shape of which groove is shown in Fig. 3.

Next to the left of the bar K, Fig. 3, is a large gear-wheel N, Figs. 6 and 7, loose upon the sleeve G. This gear is provided upon diametrically-opposite sides of its center with two radial slots L and L, Fig. 6, through which extend two studs 0 O, projecting from the front face of the bar K, Fig. 3,so that the bar and gear-wheel must revolve together, 5 while the bar is free to reciprocate diametrically of the wheel. The front ends of the studs 0 0 project beyond the front face of the wheel N and are beveled off to form teeth which co-operate with a toothed locking-disk P, Figs. 6 and 7, which is fast upon the rear end of a sleeve Q, surrounding the sleeve G and keyed at its front end to a bracket composed, mainly, of two supportingarms R R, se-

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cured to the rear side of the front wall of the casing, Fig. 5. The toothed disk P thus being fixed, it will be understood that when either one of the studs 0 0' upon the bar K is engaged with a notch in it, as' the upper lug O is in Figs. 3 and 7, said bar and the wheel N will both be positively locked from movement.

Next to the left of the locking-disk P, Fig. 3, and loose upon the sleeve Q, is a gear-wheel S, which is fast upon the rear side of the large indicator-wheel T. This gear-wheel is shown in dotted lines in Fig. (5. forward face of the indicator-wheel T are arranged to be exposed singly ata reading-opening T in the front wall of the casing. The gear-wheel N, heretofore described, meshes with a small pinion N, Figs. 2, 6, and 7, fast upon a shaft journaled in a bracket N secured to the casing at the right of the Wheel N, and a larger pinion N fast on the same shaft as the pinion N' meshes with the gear S, fast upon the indicator-wheel T, so that the movements of the gear N are thus transmitted to the gear S and indicator T. 1

Next to the left of the indicator-wheel T, Fig. 3, is the bracket E, Fig. 5, heretofore described, this bracket forming the second bearing and support for the shaft 0, referred to at the beginning of the specification.

Next to the left ofthe bracket R are the gear-wheel H and toothed locking-disk I, Fig. 5, both fast upon the front end of the sleeve G, as heretoforedescribed, so that the movements of the toothed wheel F, which is keyed to the opposite rear end of said sleeve adjacent to the driver E, are transmitted through the sleeve G and gear H to the register, the primary Wheel J of which is shown in Fig. 5.

Next to the left of the locking-disk I, Fig.

. 3, is a plate or bar U, Fig. 4, mounted upon the shaft 0 by an elongated slot at its righthand end and by a similar slot upon a screwstud V upon the casing near its left-hand end. This bar has projecting from its rear face a lug W, which co-operates with the toothed wheel I, as indicated by the dotted lines in Fig. 5. A stud X, projecting from the forward face of the bar, fits in a cam-groove Y in the rear face of a revoluble disk Z, fast upon the shaft 0. As the disk Z revolves,the bar U is slid toward and from the shaft 0 and the lug W engaged with and disengaged from the ratchet I. When it is engaged with the ratchet, it will lock the same and thegear H and register from movement, as hereinafter explained.

, Next to the left of the bar U on the shaft 0, Fig. 3, is a second bar A, extending toward the right-hand side of the machine in Figs. 4. and 5. This bar is mounted upon the shaft by an elongated slot at its left-hand end and upon a screw-stud A by a similar slot near its right-hand end. A stud A upon the front side of this bar fits in asecond cam-groove Y in'the disk Z, by which means the bar is given a reciprocating movement as the shaft The numbers on the C and disk Z revolve. The purpose of the bar A is to actuate the detent-plate B to release the operated key at the completion of each revolution of the handle and driver. This curved detent-plate is mounted by slots upon screw-studs at B Figs. 4 and 5, so as .to be capable of reciprocating in the arc of a circle concentric to the shaftC. A spring B connected to the upper left-hand end of the plate B, yieldingly holds it in and restores it to normal position. The keys 0' are arranged in two rows concentric to the shaft (J and pass through slots in the plate B. They are carried in tubular housings 0 upon the front face of the casing and their extreme rear ends pass through and are supported and guided in holes in a fixed plate 0 Figs. 2 and 3. Surrounding each key within its housing 0 is a coiled resetting-spring 0, hearing at its onto? end against a shoulder on the key and at its inner end against the bottom of the bore, which is made in the front wall of the casing coincident with the bore of the housing. The large bore does not extend quite through the wall of the casing; but a smaller one extends through the remaining thickness and permits the passage of the key and at the same time forms a shoulder at the bottom of the large bore, against which the inner end of the spring 0 may bear, as seen in Fig. 3. The stems of the keys are of the shape shown in Fig. 3 and are provided with shoulders 0 which cooperate with the detent-plateB'. When a key is pushed in, its spring 0 is compressed, and

its shoulder C pushes the plate 13 aside as it passes, after which the plate springs back toward normal position behind the shoulder and detains the key in its inner position. Pins 0, passed through and projecting from the sides of the keys, bear against the rear face of the wall of the casing when the keys are in their normal position and hold the keys in place against the pressure of the springs 0 A stud B upon the upper right-hand end of the plate B, Figs. 2, 4, and 5, rests in a notch in the upper side of the bar A. The right-hand side A of this notch is inclined or beveled, so that when the bar is slid to the left toward the center of the machine the incline A riding under the stud B on theplate B, will lift that end of the plate against the resistance of thespring B at its opposite.

end. This movement of the plate will carry it from behind the shoulder of any key which may have been pushed in' and caught by it, and the key will thereupon be thrown out to normal position by its spring. Now owing to the shape of the cam-groove Y in the disk Z, with which groove the stud A on the bar A co-operates, the bar A will be slid toward the-center of the machine and the detentplate 13' be moved, in the manner described, just before the operating-handle and driver complete their revolution and come to normal position, so that the operated key is released and restored to normal position at the end of each operation of the machine. The

free to be turned forward.

cam-groove Y holds the barA' to the left but an instant and moves it to the right again and permits the plate B to be reset by the time the handle and shaft reach normal position, so that when another key is pressed in preparatory to the next operation of the machine the plate B will be in position to engage the shoulder of the key. A portion of the periphery of the disk Z is cut away, as seen in Fig. 4, to form a shoulder at Z. This shoulder co-operates with one end of a bent arm Z pivoted to the bar A, the other end of said arm fitting'in a slot in an upward extension of the plate 13. \Vhen the parts are all in their normal position, the left-hand end of the arm Z lies in the path of travel of the shoulder Z and locks the machine from operation. \Vhen, however, any key is pressed inward and the detent-plate B thereby moved to the right and its right-hand end thrown upward, the right-hand end of the arm Z is carried with it and the left-hand end of the arm thrown downward, out of the path of the shoulder Z, and the disk Z is then \Vhen a key is pushed in until its shoulder passes the detent-plate, the latter, in catching behind the shoulder, is not permitted to return all the way to normal position, owing to the fact that the portion of the key behind its shoulder is thicker than that in front of it, as seen in Fig. 3 After a key is pushed in, therefore, the locking-arm Z is held out of the path of the shoulder Z until the shaft and disk Z are given nearly a complete revolution and the plate B so moved by the stud A on the bar A as to release the key, in the manner before explained, the locking-arm being thrown up in front of the shoulder just before the parts come to rest in normal position.

The periphery of the disk Z is provided with ratchet-teeth, which cooperate with a pawl F to prevent backward movement of the disk and shaft.

Upon the front face of the disk Z is a notched cam Z (shown in dotted lines in Fig. 4,) co-operating with a screen-plate Z, arranged to vibrate back and forth between the indicator-wheel T and the reading-opening T in the front wall of the casing to alternately hide and expose the numbers on said wheel. This screen is pivoted to the casing at Z", and its lower end co-operates with the cam Z \Vhen the notch in the cam is brought into position for the lower end of the screen-plate to enter it, a spring Z connected to the plate, will pull the upper end of the plate to the left away from the reading-opening, and expose the number on the wheel T, which may then be behind the opening. Then the disk Z is turned forward, how ever, the periphery of the cam Z, bearing against the lower end of the plate Z' will throw the screen to the right behind the reading-opening and hold it there until the notch in the cam again comes around into position for the lower end of the plate to spring into it. lVhen the operating-handle and other parts of the machine are in their normal position of rest, the notch in the cam Z stands in position for the end of the plate Z to engage it, and the screen is held by the springZ to the left of the reading-opening to expose a number on the indicator T. lVhen the operating-handle is started forward at the beginning of an operation, the cam Z at once throws the screen behind the reading-opening, and the numbers on the indicator-wheel which pass behind said opening are hidden until the handle reaches normal position again,

whereupon the screen is pulled to the left by its spring and the proper number on the indicator exposed to view.

As heretofore stated, the driving-disk E at the rear of the machine, Figs. 2 and 2, is provided upon its rear face with two eccentric semicircular grooves G and G and a radiallysliding plate G fitting in a suitable guideway in the disk. These grooves and this sliding plate co-operate with two lugs H and H projecting into the grooves from the inner face of a latch-bar 1, Figs. 2 and 3 and dotted lines in Fig. 2. This bar extends diametrically across the machine and is suitably bent or shaped to fit over the driver E and have its opposite ends fit against the rear face of the bar K, heretofore described and as seen in Figs. 2 and 3. The opposite ends of the bar I are provided with slots which embrace lugs l on the rear face of the bar K, Figs. 2, 3, and 7, and the heads of screws 1 entering the lugs, secure the bar I to the bar K. The two bars thus must revolve together, but are free to reciprocate independently of each other.

Upon the front face of the bar K, near its opposite ends, Fig. 3 and dotted lines in Figs. 7, are two lugs O and 0*, which co-operate with a shoulder N on the inner face of a lug N secured upon the bracket N Figs. 2, 3 and 7, in the manner hereinafter explained.

It will be remembered that the bar K has upon its front face two studs 0 and 0', Fig. 3, which project through slots in the gearwheel N, which drives the indicator, Figs. 6 and 7, so that the bars K and I will therefore both revolve with the wheel N. Upon the inner face of one end of the bar I are two cams J and J Figs. 2 and 3, and upon the inner face of its opposite end two similar cams J" and J These cams co-operate with the rear ends of the keys C, the cams J and I with the keys of the outer row, and the cams J and J with the keys of the inner row. The cams J and J also cooperate with the outer side of the lug N on the bracket N all as hereinafter explained.

In Fig. 2 is shown a full-sized rear view of the driver E, a portion of the latch-bar I being shown in dotted lines, and its lugs I1 and H fitting in the grooves G and G in section. It will be seen that the outer wall of the groove G at the right-hand side of the IIO 'pass both of these shoulders before it can enter the groove G 80 at the left-hand side of the disk the inner wall-10f Ithegroove G'f terminates intwo. shouldersK and K both of which inustbe passed'by the lug H in the groove G before it can enter. the-groove G.

. Upon therighthand end of the sliding plate G are two .teeth M and M This plate is pressed toward the'ri'ght-in Figs. 2and 2 and yieldinglyheld in theposition shownbya coiled spring G interposed-ina'recess formed in theside of-the plate at the leftof its middle, the-spring bearing'at one end against the plate and at its other against thebaseof the shoulders K3 and K 5 Near its'left-hand end the" plate G i is provided. with "a transverse slot Giwhich normally registers with-theend of the groove G but may be made to register with the end'of the groove G when the plate G is slidtoward the" leftandi t-he'v spring G compressed.

The operation of the machineiisxas follows, assuming the parts tobei'n the position shown in the drawings, in. indicationiof a previous sale of fifty-five .cen'ts: :As 1 the :driver E is turned with the operating-handle and central shaft in the direction/of; the arrows in Figs; 2 and 2 and .the first tooth-1M at the righthand end of the plate G comes. in contact with the lug H on. the bar- I, that end of the plate will be. forced slightly. inward against the 'resistanceof the spring G until thetooth passes the lug, whereupon the plate-will spring back to normal position. and the lug will be caught between the teeth M and M with its upper rear face in contact with the shoulder K of the driver. At this moment, also, the cam-groove L? in the forward side of the driver, Fig. 3, acting onzthe stud Mofr the bar K, Figs. 3 and 7 will. lift saidibar from the position shown in Figs. 3 and- Zand disengage itslteeth L from the registering-wheel F. The bar .I (and with it the bar K and the gear-wheel N, which. drives theindicator): being now locked. to the-driver E by the lug H, as the driver continues-to. revolve these parts are carried around with itsuntil the cam J 3 uponthe inner faceof thelower end of the bar I in Fig. 2 reaches the lug N on the bracket N As the 1 cam J rides over the outer side of the lug'N, the I barl will be drawntoward that side of the machine and the lug H on the'bar will' pull the plate G in' the same direction against the resistance of the spring G far enough to permit the lug to clear the shoulder K. At this moment the lug 0 upon the inner face of the lower end of the bar K, Figs. 3 and 7,.will come incon tact with the shoulder'N on the lug N. This will momentarilyarrest the barsK and I and the driver will turn slightly forward independently of them. This independent movement.

latter-will then abut against the shoulder K and be confined between said shoulder and the tooth M This'independent forward movementof the driven-while the bar Kis caught on the: shoulder N serves another purpose. It causes the cam-groove L in the forward side of the'driver, Fig.3, acting on' the stud M of the bar K,'to draw said bar toward the 'leftand engage itsteeth L with the registering-wheel and at the same time carry the lug 0 out of engagement'with the shoulder N to release the bar'andpermit it to move on forward. The driver is thus connected to the re ister, so that from this point forward it drives The end of now begins to' travel over the rowsof keys G,-andlwhen the key whose-rear'end'has been thrown into-the path of travel of the camJ or J 2 is reached the outer face of the 1 cam-wi-llride' over the inner face of the key and the' bar I will be forced upward away from thekey untilthe abrupt'shoulder or heel O of-the cam engages the key and posi- \tively arrests the bar. 'This'upward move= ment of the bar causes itsJlug H, which has been confined between the tooth M on the plate G and the shoulder K on the driver, to'press the plate upward far enough to per: mit the lug'to clear the shoulder K and enter the groove G the lug H atithe opposite side' of the driver having cleared the shoulders K and'K and simultaneously entered the groove G. The l-ug H now beingin the groove G and the lug H in the groove G, the

driver is free. to turn onto normal positionin- I dependently of the bar I and connected parts, 7

which remain at the point at which they-were arrested by the operated key. =A-t the moment that the bars I" and Y K areal-rested by the operated key and the driver begins to move forward independently of them the action of the cam-groove L in the front face of the driver uponthe stud M on the bar K will draw the bar downward, more deeply-engaging its teeth L with the notches in the wheel F," as shown in the case of the teeth L in Fig.

7, and at the same time engaging the extreme forward end of the lug O on the front side of the'barK (in front of the gear-wheel N, Fig. -3)with a notch in the locking-disk P,

.fturnsforward from normal position atthe moment or just before the toothed end of the plate G reaches the lug H which is then standing in its path, the camgroove L in the front side of driver, acting on the stud -M' on the bar K, lifts said bar, and not only disengages the lug 0 from the locking-disk IIO P, but also disengages the teeth I. from the wheel F, which drives the register, so that the bars I and K and the gear N, which drives the indicator, are then free to turn forward with the driver without the wheel F and register. To prevent any accidental turning forward of the wheel F and register, however, I provide the lock shown in Figs. t and 5, where, it will be remembered, a lock lug-tooth XV, upon the rear side of a bar U, cooperates with a ratchet I, fast upon the front side of the gear H, which drives the register. A stud X, upon the forward side of the bar U, co-operates with a cam-groove Y in a disk Z, and the shape of said groove is such that the bar U is drawn inward and the tooth engaged with the ratchet I at the begin 11mg of the forward movement of the driver from normal position and holds it in this locking position until the driver has made half of a revolution, whereupon the bar U is thrown outward again, the tooth W disengaged from the ratchet I, and the registeringwheel released.

Having described above the operation of the various parts in detail, it will, perhaps, make it clearer to describe it more generally and briefly as follows: lVith the parts in the position shown in the drawings some one of the operating-keys is first pushed in and caught by the detent-plate'B, Figs. 3, 4, and 5. This will move the detent-plate upward to the right in said figures and throw the locking-arm Z out of the path of the shoulder Z on the diskZ to permit the latter and the operating-handle to be moved forward. The handle is then started forward and the cam Z on the forward face of the disk Zat once throws the screen-plate Z to the right and closes the reading-opening T. The camgroove Y inthe disk Z, acting on the studX of the'barU,then'1noves the locking-tooth XV into engagement with the ratchet I and locks the register. Just before the toothed end of the plate G and shoulder K of the driver, Figs. 2 and 2, reach the lugI-I on the barI and pick up said bar to carry it and the bar K and gear N forward with the driver the camgroove L in the front side of the driver, acting on the stud M of the bar K, lifts said bar and disengages the lug 0 from the locking-disk P and the teeth L from the register-wheel F. The driver then carries the bars I and K and gear-wheel N on around with it. When the driverhas completed one-half of a revolution and the lower end of the bar I has been carried around until its cam J engages the outer side of the lug N the indicator has been brought to zero or initial position. At this point the cam-groove Y in the disk Z, Figs. at and 5, moves the bar U to the left again and disengages the tooth XVfrom the ratchet I to release the register. As the cam J 3 on the bar I rides over the outer side of the lug N", Fig. 2, the bar is drawn to the right and the lug H moved out of engagement with the shoulder K of the driver, Fig. 2. The lug O on the forward side of the lower end of the barK then comes in contact with the shoulder N on the lug N and momentarily arrests the bars I and K, while the driver moves on without them far enough to carry its shoulder K and the tooth M on theplate i past the lug II and engage the shoulder K with said lug, and also to cause the camgroove L in the front side of the driver to draw the bar K to the left far enough to disengage its lug 0" from the shoulder N on the fixed lug N and to engage its teeth I. with the register-wheel F. The lug O" on the bar K having now cleared the shoulder N the driver carries the bars K and I and the indicator and register forward with it, moving the indicator from Zero or initial position to the new indication and adding the amount upon the register. lVhen the end of the bar I, which carries the cams J and J which is now traveling over the rows of keys C, reaches the operated key, (whose rear end will stand in the path of one of the cams J or J*,) the cam will ride over the key and lift thebar K, disengaging its lug H from the shoulder K of the driver, and as the shoulder O at the heel of the cam strikes the key and positively arrests the bar I the driver moves on alone. At the beginning of the independent movement of the driver the cam-groove L in its forward side, acting 011 the stud M of the bar K, will draw down the bar K to the position shown in Fig. 7 and engage its lug O with the locking-disk P, Fig. 3 and in dotted lines Fig. 7. Just before the driver reaches normal position, the cam-groove Y in the disk Z, Figs. 4 and 5, acting on the stud A of the bar A, draws said bar to the left, and the incline A riding under the pin I3 on the detent-plate B, lifts said plate and releases the operated key, whose spring immediately throws it out to normal position. The cam-groove Y then moves the bar A to the right again, the spring B resets the detentplate B, andv the locking-arm Z is moved into the path of the shoulder Z on the disk Z, while the notch in the cam Z on the front side of the disk Z comes under the lower end of the screen-plate Z as the parts reach normal position, and the spring Z draws the screen Z away from the reading-opening T to expose the new indication. As before stated, when the cam J or J on the bar 1 comes in contact with the operated key it rides over the key and lifts the bar I until the shoulder O at the end of the cam strikes the key. This positively arrests the bar and the driver moves on alone, leaving the shoulder of thecam caught upon the key. As the driver begins its further independent movement, however, the cam-grooves G and G owing to their eccentric position in the driver, will lift the bar I and carry the shoulder O of the engaged cam above the line of the row of keys, as seen in Fig. 2, so that at the next operation of the machine said cam and shoulder can travel freely above the row of keys, and thereby clear the operated key if it should happen to be one to the right of the bar in said figure. As shown in the drawings, the gear N, which revolves with the bars K and I and drives the indicator, has sixty teeth. The gearN', with which it meshes, has twenty teeth; the gear N Oil-"file same shaft as the gear N thirty-two teeth, and the gear S, fast on the indicatorwheel T, forty-eight teeth, so that the wheel T will make two revolutions for each revolu: tion of the. gear N. The rows of keys C occupy one-third of the circles in which they are located, and the numbers upon the wheel T occupy two-thirds of the circle in which they are located. The travel of the end of the bar I over the entire length of the rows of keys will cause the wheel T to make twothirds of a revolution, while a half-revolution of the bar I will cause the wheel T to make a full revolution. the numbers upon the wheel T to be made larger than if that wheel made but one revolution for each revolution of the bar I and gear N.

The arrangement of the keys in two concentric rows co-operating with a single latchbar 1 enables a larger number of keys to be employed in a given space than when they are arranged in a single row, as in my prior patj ents before referred to.

Thirty keys instead of twenty might readily be employed in my present machine by making the two rows of keys extend over one-half of the circles in which they are placed. In such case the numbers on the indicator-wheel T would be made to form a complete circle, so that a movement of the bar I over the entire series of keys would give the indicator-one complete revolution.

Having thus fully described my invention, I claim 1. The combination of a revoluble drivingdisk provided with two cam-grooves and a driving-shoulder, a revoluble and radiallymovable latch-bar provided with two lugs fitting in the cam-grooves in the driver and alternately co-operating with the-driving-shoulder, and a series of stops co-operating with the latch-bar to disconnect its engaged lug from the shoulder of the driver at different points, substantially as described.

2. The combination of a revoluble drivingdisk provided with two cam-grooves and a driving-shoulder, a toothed latch-plate carried by the disk, a radially-movable andrevoluble latch-bar provided with two lugs fitting in the cam-grooves in the disk and alternately cooperating with the driving-shoulder and the.

toothed plate, anda series of stops co-operating with the latch-bar to disengage its engaged lug from the driving-shoulder at different points, substantially as described.

This arrangement permits i provided with the two grooves G and G and j the driving-shoulder K, the toothed plate G the radially-sliding and revoluble bar I, havin g the two lugs H and H fitting in the grooves G and G and oo-operating alternately with g 3 the shoulder K and toothed plate G and the v series of keys 0, co-operating with the bar I, substantially as described.

fitting in the cam-grooves and alternately cooperating with the d riving-shoulders and toothed plate, a fixed cam co-operating with the latch-bar at the end of the first half of the revolution of the driving-disk to disconnect its engaged lug from one of the shoulders of the disk and cooperating with a series of stops during the second half of the revolution of the driving-disk to disconnect said lug from the other shoulder, substantially as described.

4. The combination of the revoluble drivin g-disk E, provided with the two grooves G and G and drivingshoulder K, the radiallysliding and revoluble bar 1, having the'lugs H and H fitting in the grooves G and G and alternately co-operating with the drivingshoulder K, and the series of stop-keys 0, co- 5 operating with the bar I, substantially as de- Y scribed.

5. The combination of the driving-disk E,

6. The combination of the driving-disk E,

j provided upon one side with the cam-groove L and on the other side with the twogrooves G and G and driving-shoulders K and K the radially-movable and revoluble bar K,having the stud M fitting in the groove'L and provided with the teeth L and L,-the regisa tering-wheel F, with which'the teeth L and L alternately engage, the bar 1 upon the oppo-- site side of the disk E, revolving with the bar K, but radially movable independently thereof, the lugs 11' and H on the bar I, fittingin 7 the grooves G and G in the disk E and cooperating with the driving-shoulders K and K the fixed stop N co-operating with the bar K and the fixed cam N and series of keys 0, co-operating with the bar I, as described.

7. The combination of the driving-disk E, provided with the grooves L and G and G substantially and driving-shoulders K and K the bar K,

provided with the stud M, co-operating with the groove L the teeth L and L, and toothed studs 0 and O on the bar K, the fixed locking disk P, co-operating with the toothed studs 0 and O, and the registering-wheel F, cooperating with the teeth L and L,the gear N, revolving with the bar K, the bar I, revolving with the bar K and provided with lugs H and H fitting in the grooves G and G in the disk E, and with cams J and J the fixed stop N co-operating with the bar K, and the fixed cam N and keys 0, co-operating withthe cams J and J on the bar I,substantially as described.

8. The combination of a driver E, having a driving-shoulder K, a radially-movable andrevoluble bar I, provided with the two lugs H and H alternately co-operating wit-h the too shoulder K, the keys 0, co-operating with the bar and the gear N, revolving with the bar, the pinion l meshing with the gear N, the pinion N revolving with the pinion N, the indicator-wheel T, and the gear S, fast thereon and meshing with the pinion N substantially as described.

9. The combination of a driver E, having a driving-shoulder K, a radially-sliding and revoluble bar I, provided with lugs H and H alternately co-operating with the shoulder K, and also provided with the two cams J and J, each having an arresting-shoulder O and the series of keys 0, co-operating with the cams J J and shoulders 0 substantially as described.

10. The combination of a revoluble driver, a radially-movable and revoluble bar driven thereby, and two concentric rows of keys cooperating with the bar, substantially as described.

11. The combination of a revoluble driver having a driving-shoulder, a radiallyanovable and revoluble bar provided with a lug co-opcrating with the shoulder of the driver, and two concentric rows of keys co-operating with the bai, substantially as described.

1:2. The combination of a revoluble driver haviin a d rivirigshoulder, a radially-movable and; 'evoluble bar provided with a lug co-opcrating with the driving-shoulder, and a fixed onn {tlldhWO concentric rows of movable cams 0 keys (:o-operating with the bar, substantially as described.

1 The combination of a revoluble driver, a evcluhle wheel, a revoluble latch for connc Oting them, and two concentric rows of keys Co-0perati with the latch to disconnect them.

14. The combination of a revoluble driver, a revoluble registering-wheel, a latch for conneJet'mg them at the end of the first half of the revolution of the driver, a series of stops for disconnecting them during the second half of the revolution of the driver, and a lock actuated by the driving mechanism to lock the registering-wheel at the beginning of the first half of the revolution of the driver and to unlock it at .the end of said half-revolution.

15. The combination of a revoluble driver, a revoluble indicator-wheel, and a revoluble registering-wheel, a latch for connecting the driver and indicator-Wheel during the first half of the revolution of the driver, and a cam co-operating with the latch at the end of said halt-revolution to cause it to connect the driver and registering-wheel, a series of stops co-operating with the latch during the second half of the revolution of the driver to disconnect the driver from both the indicator and registering wheels, and a lock actuated by the driving mechanism to lock the registering-wheel at the beginning of the first half of the revolution of the driver and to unlock it at the end of said half-revolution.

16. The combination of the locking-ratchet I, revolving with the registering-wheel, the revoluble disk Z, provided with the canrgroove Y, and the bar U, provided with the stud X, co-operating with the cam-groove Y, and with the locking-tooth \V, cooperating with the ratchet I, substantially as described.

17. The combination of a revoluble driver, a revoluble wheel, a revoluble latch for connecting them, a series of stops co-operating with the latch to disconnect them, and a lock for the driver, actuated by the operation of a key to release the driver and operating automatically to lock the driver again at the completion of its revolution.

18. The combination of a revoluble shaft, a driver fast thereon, a revoluble wheel loose thereon, a latch for connecting them, a series of keys co-operating with the latch to disconnect them, a locking-disk revoluble with the driver, a locking-dog co-operating therewith to lock the driver from movement and actuated by the operation of any one of the keys to release the driver. 7

19. The combination of a revoluble shaft, a driver fast thereon, a revoluble wheel loose thereon, a latch for connecting them, a series of shouldered keys cooperating with the latch to disconnect them, a detent-plate moved by the operation of any one of the keys and cooperating with the shoulder of the keyto hold the key in operated position, a locking-disk fast upon the shaft, and a locking-dog co-opcrating with the disk and actuated by the movements of the dctent-plate to lock the driver from movement, except when one of the keys is operated.

20. The combination of a revoluble driver, a revoluble wheel, a revoluble latch for connecting them, a series of shouldered keys cooperating with the latch to disconnect them, a movable detent-plate co-operating with the shoulders of the keys to detain them in operated position and moved by the driving mechanism at the completion of the revolution of the driver to release the operated key.

21. The combination of a revoluble driver, a revoluble wheel, alatch for connecting them, a series of shouldered keys co-operating with the latch, a movable detent-plate co-operating with the shoulders of the keys to detain them in operated position, and a cam actuated by the driving mechanism and co-operating with the detent-plate to move the same and release the operated key at the end of the revolution of the driver.

22. The combination of a revoluble shaft, a driver fast thereon, a wheel loose thereon, a latch for connecting them, a series of shouldered keys co-operating with the latch to disconnect them, a movable detent-plate co-opcrating with the shoulders of the keys to detain them in operated position, and a cam fast upon the revoluble shaft and actuating the detent-plate to release the operated key at the completion of the revolution of the driver.

The combination of a revoluble driver, a revoluble indicator, a revoluble latch for connecting them, aseries of stops co-operat provided With-a reading-opening for the exing'with the latch to disconnect them, a casposnre of the numbers 011 the Indicator, a, ing provided with a reading-opening for the screen movable back and forth between the 15 exposure of the numbers upon'the indicator, reading-opening and indicator to alternately 1 5( and an automatic screen actuated by the drivhide and exposethe numbers on the latter,

1;, ing mechanism to open and close the readingand a cam fast upon the revoluble shaft and opening to alternately expose and hide the co-operating with the screen.

numbers on the indicator.

xv 24. The combination of a revoluble shaft, a HUGO COOK. I 10 driver fast thereon, a revoluble wheel loose WVitnesses:

thereon, a latch for connectingthem, a series THOMAS CORWIN, of stops co-operating with the latch, a casing PEARL N. SIGLER.

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