US1964552A

US1964552A - Cash register

Info

Publication number: US1964552A
Authority: US
Publication date: 1934-06-26
Anticipated expiration: 1951-06-26

Description

c. H. ARNOLD CASH REGISTER Filed Dec. 29, 1951 FIG. 2

June 26, 1934.

Sheets-Sheet l Charla H. Arnold His 6M June 26, 1934. c H ARNOLD 1,964,552

CASH REGISTER Filed Dec. 29, 1931 5 Sheets-Sheet 2 Charles H. Arnqld June 26, 1934. H, ARNOLD 1,964,552

CASH REGISTER Filed Dec. 29, 1931 3 Sheets-Sheet 3 FIG. 8 M

FIG.1O

THE JOHN DOE DEPARTMENT STORE T" hnnK You 27 z 5 DATE SERIAL NO. AMOUNT TRS- y Charle' 5 I56: 24. OCT-28 5907 *9,9//.99 AJ.

DATE SERIAL N0. AMOUNT THS.

24.067 28 5907 1:9,9/[99 AJ. Hisfllrmw F'atented June 26, 1934 CASH REGISTER Charles H. Arnold, Dayton, Ohio, assignor to The National Cash Register Company, Dayton, Qhio, a corporation of Maryland Original application May 4, 1929, Serial No.

22?, 1931, Serial No. 583,660

24 Claims.

This application is a division of the copending application for Letters Patent of the United- States, Serial No. 360,525, filed May 4, 1929, by Charles H. Arnold, and relates to cash registers and like machines, but is more particularly directed to improvements in the printing mechanisms of such machines.

The printing device of the present invention is particularly adapted for use in connection with cash registers of the type disclosed in Letters Patents of the United States No. 1,817,883, issued August 4, 1931, and 1,865,147, issued January 19, 1924, to Bernis M. Shipley.

One object of this invention is to provide, in

combination with a printing mechanism a novel record material feeding device, together with novel controlling means therefor.

Another object is to provide a novel disabling means for the Geneva drive usedin connection with the control device for the feed mechanism.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended .25 claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

In the drawings:

Fig. i is a view in left elevation of the printing device, which is shown partly in section for clearness.

Fig. 2 is a view in rear elevation, partly in section, of the automatic Geneva coupling for connecting the printer drive shaft to the Geneva drive for feeding the record material.

Fig. 3 is a fragmentary view of the control lever for disabling the printing mechanism.

Fig. 4 is a detail side view of the receipt, electro and impression rolls and the mechanism which rotates them to feed the record material.

Fig. 5 is a detail perspective view of the Geneva drive disk.

Fig. 6 is a. disjoined perspective view of the Geneva drive for the record material feeding means.

Fig. 7 is a view in rear elevation, partly in section, of the on and off knob and a part of the mechanism adjusted thereby, to control the issuance of a receipt.

Fig. 8 is a side elevation of hte differential mechanism for a bank of transaction keys.

Fig. 9 is an end view of parts shown in the lower left corner of Fig. 8.

Divided and this application December Fig. 10 illustrates one form of a stub receipt printed and issued by the machine.

General description The printing mechanism disclosed herein in its preferred form is especially adapted for use in connection with a machine of the type to which are directed the above mentioned patents, but it will be understood that by a few minor changes, applicants printing device may be used on a number of other types of cash registers or accounting machines without departing from the spirit and scope of the invention.

A single printing hammer is provided to make two successive impressions or imprints at each operation of the machine from type elements on an issuing record material, or an issuing receipt, as it will be hereinafter referred to.

Two groups of electro and impression rolls are provided to print predetermined data on the receipts and to feed the record material from which the receipts are severed, the electro and impression rolls being removably assembled in the machine.

A perforating device is mounted on one thereon.

By causing duplicate imprints to be made on the record material, with a space between them, and by perforating the record material web between said impressions, a stub receipt is issued, the stub of which is readily detachable from the body thereof.

A number of type carriers, only one 30 (Fig. 1) of which is shown, are suitably journaled in the printing section of the machine and are adapted to be differentially positioned in the usual and well-known manner, under the control of keys in the main register (not shown) to which the printing mechanism is attached.

While in this illustrated form, the printing mechanism is adapted to print on an issuing record material or receipt, it is evident that by slight changes it may be adapted to print on insertable slips, etc., and on a detail record strip retained in the machine.

The printing mechanism may be thrown on or off, that is to say, rendered effective or ineffective to perform its function, from three separate sources, namely, manually by adjustment of an on and off knob, manually by adjustment of a control lever adapted to condition the cash register with which the invention is adapted to be used to make various kinds of operations, and automatically under the control of a plurality of depressible keys.

thus disabled, the record material feeding mechanism is disconnected from the printer drive shaft, and other mechanism is controlled to interrupt the operation of the printing hammer.

5 In the following description, the printing mechanism referred to above will be explained in detail.

Detailed description The entire printing mechanism is supported in a printer frame 31 (Fig. 1), which inturn is suitably secured to one of the main machine frames (not shown).

An ink ribbon 32 (Fig. 1) is alternately wound and unwound from a pair of spools 33 and 34 suitably journaled in a bracket (not shown) removably mounted in the printer frame 31. A suitable ribbon feeding and reversing device has been provided to wind the ribbon on the spools alternately. The ribbon feeding and. reversing mechanisms are not shown herein, as these devices have no particular bearing on the present invention. The ribbon 32 passes around the type elements 30, being guided by guards 35 and 36 surrounding the type elements. The adjacent edges of the guards 35 and 36 are spaced apart to form apertures through which impression hammers are driven to take impressions on the type at diametrically opposite points of the type carriers, on the issuing record material and on a strip of detail record material (not shown) which latter is retained in the machine. On one side the ribbon passes between a check or receipt chute 37 suitably supported on the guards 35 and 36, and the type elements, the opposite walls of the chute 37 being apertured as at 38 through which one of the impression hammers 39 pivoted on a stud 40 is driven to take the impression on the issuing record material. The ribbon mechanism, including the spools 33 and 34 and the guards 35 and 36, is mounted on a bracket (not shown) removably insertable in the printer mechanism to facilitate the replacement of a worn ribbon with a new one.

The mechanism for operating the hammers 39 to make successive impressions at each operation of the machine on the issuing receipt strip or record material is not shown herein, but a full and complete disclosure thereof may be had by reference to United States Patent No. 1,761,556

issued June 3, 1930 to Charles H. Arnold.

Receipt-feeding mechanism The receipt web 45 (Fig. 1) is unwound from a supply roll 46 journaled on the stud 47 projecting outwardly from the printer frame 31. The web 45 passes around a guide stud at 44 which supports one end of a chute 48, said stud projecting from the frame 31.

Impression and feed rolls 52 and 57 (Fig. 4) are mounted in a unit removable endwise from the machine, such unit including end frames, one of which 54 (Fig. 1) is at the outer end of the unit, the co-acting end frames being spaced apart therefrom and lying adjacent the printer side frame 31. Crossrods 49 connect the respective end frames 54. The impression and feed rolls are journaled on

hollow shafts

53 and 58, respectively, having eccentric trunnions journaled in the respective end frames 54 and normally lie adjacent to and coact with electro rolls and 55, respectively, journaled on studs 51 and 56, respectively, projecting from the printer side frame 31. Spring-pressed yokes 67 and 68 journaled on the respective crossrods 49 of the removable roll frames carry ink rollers 65 and 66- and press them against their respective electro rolls 50 and 55. The ink rollers are journaled on shafts journaled in the yokes 67 and 68, the front ends of which shafts are extended to project through slots in the front end frame 54. This mechanism is more fully explained in Letters Patent to Bernis M. Shipley No. 1,614,540 issued January 18, 1927.

The web 45 is led through the chute 48 and between the electro roll. 50 (Fig. 4) and its impression roll 52. The web 45 then passes between the second electro roll 55 and its co-acting impression roll 57. Means hereinafter described is provided to rotate the rolls just described to feed the receipt web 45. The impression rolls 52 and 57 are eccentrically mounted so that by slight rotation of the

shafts

53 and 58 they may be cast off from the electro rolls 50 and 55, respectively, to permit their withdrawal endwise from the machine and to permit the receipt web to be readily inserted between the respective rolls when charging the device with a fresh roll of receipt paper.

The web 45 is next fed into a curved chute 59 supported between the end frame 54 and its COlllpanion end frame (not shown) and then through the chute 37. After leaving the chute 37 the web 45 is fed through a shearing device where near the end of the operation the printed and perforated receipt is severed from the web 45.

In withdrawing the impression feed roll unit from the machine, the impression rolls 52 and 57 and ink rollers and 66 are first cast off their respective electro rolls 5D and 55 as follows:

Mutilated gears 69 and 70 (Fig. l) secured to the outer ends of the

eccentric shafts

53 and 58, respectively, mesh with teeth formed on the hub of the cam lever 71 pivoted at 72 to the end frame 54. The cam lever 71 is normally latched in such a position that the impression rolls 52 and 57 and the ink rolls 65 and 66 bear against the peripheries of their respective electro rolls 50 and 55. Rocking the cam lever 71 clockwise (Fig. 1) turns the mutilated gears 69 and 70 counter-clockwise to cast off the eccentrically mounted rolls 52 and 57 from their electro rolls. The lever 71 also brings the cam 74, with which it is equipped, against the forward ends of the shafts 60 of the

ink rollers

65 and 66 to rock said rollers away from the electro rolls. The walls of concentric slots 61 formed in the cam lever 71 fit in annular grooves in the studs 51 and 56 to retain the impression and ink rollers in proper position. These slots, when the cam lever is rocked clockwise escape their studs and the impression and feeding roll frame is free to be removed endwise from the machine.

The above described electro rolls, impression roll and ink roller mechanism is old and well known in the art, and is fully illustrated and described in Letters Patent of the United States No. 1,619,796 and No. 1,614,540, granted March 1, 1927 and January 18, 1927, respectively, to Bernis M. Shipley.

Check feed driving mechanism Mechanism is provided to turn the electro roll 50 (Fig. 4) in counter-clockwise direction and the electro roll 55 in clockwise direction at each operation of the machine to feed the receipt web and to print thereon from the electro rolls 50 and 55. The feed of the web is intermittent, that is, the web is advanced between the two successive imprints effected by the impression hammer 39 (Fig. 1'), the feed rolls being rotated to feed the receipts into position to receive the second imprint, after which a second longer step of feed is imparted to the web to advance it into position where the printed receipt is severed from the web. This intermittent drive is conveniently effected by a Geneva movement now to be described.

The check feed drive mechanism is best shown in Figures 2, 4, 5 and 6. The forward end of a printer drive shaft 82 journaled in the printer frame 31 and in the main register frame carries a sleeve 81 loosely mounted thereon and having a drive disk fast thereto. The printer drive shaft 82 is given one complete rotation at each operation of the machine by suitable means not herein shown, but fully disclosed in Figure 40 of U. S. Patent No. 1, 817,888, issued August 4, 1931, to Bernis M. Shipley.

Studs

83, 8e and 85 laterally projecting from one side face of the drive disk 80 successively enter radial slots formed in a Geneva wheel 86 fast on a hub journaled on a stud 87 projecting from the printer frame 31 and serve as rundles to turn said wheel. A locking disk 88 mounted on the sleeve 81 and fast to disk 80 normally prevents rotation of the Geneva wheel 86 until the proper time during the rotation of the drive disk 80. The sleeve 81 carrying a locking di- 107, the drive disk 80 with the locking disk 88, and a cylinder cam 106, turn with the shaft 82, due to a clutch connection 101, and also slide axially thereon.

The periphery of the locking disk 88 is cut away or recessed at points opposite the

studs

83, 84 and 85 to afford clearance for the cogs of the Geneva wheel 86. Th outer concave ends of the successive cogs fitting the unmutilated periphery of the locking isk, which maintain the receipt feeding mechanism locked during the time the unmutilated periphery of the locking disk coacts with the cogs of the Geneva wheel. The

studs

83, 84 and 85 each turn the Geneva wheel onenfth of one rotation in a clockwise direction, or a total of three-fifths of one rotation at each rotation of the drive shaft 82, a space being left between the

studs

83 and 84, greater in extent than the space between the

studs

84 and 85. The stud 83 imparts a single step of movement to the Geneva wh els after which there is a brief dwell to enable other mechanism to function While the paper web is stationary, after which the drive disk as it rotates brings the

studs

84 and 85 into engagement with the wheel. The

studs

84 and 85 are so spaced relatively to each other that the combined movement imparted to the Geneva wheel thereby is continuous and of course equal to twice the movement imparted to the wheel by the stud 83.

These movements of the wheel 86 are transmitted to the electro rolls 50 and 55 by a train of gears, one gear 89 (Figs. 1, 2, 4 and 6) of which train is fast on one end of the hub 90 which carries the Geneva wheel 86. The gear 89 meshes with an intermediate or idler pinion 91 (Fig. =1) journaled on a stud 92 projecting from the printer frame 31. This pinion in turn meshes with a gear 98 journaled on the stud 56 and the gear 93 meshes with the gear 94 on the stud 51. The gears 93 and 94 are clutched to the electro rolls 55 and 50, respectively by mechanism not shown herein. The ratio of the Geneva movement and the train of gears is such that threefifths of one rotation imparted to the Geneva wheel 86 by the

studs

83, 84 and 85 is sufficient to drive the electro rolls 55 and 50, respectively, one complete clockwise and one complete counter-clockwise rotation at each operation of the printing mechanism to feed the paper Web 45 between the first and second impressions and again after the second impression has been made to bring the printed receipt into position to be severed from the web.

A perforator knife 95 (Fig. 4) is fixed in the electro roll 50 in such a manner that as it passes the point of contact of electro roll 50 and impression roll 52, the perforator is forced through the paper web 45 to perforate the latter, as indicated at 96 (Fig. 10).

The driving disk 80 is so connected with the printer drive shaft 32 that the disk may rotate with the shaft and be slidable axially thereon. To this end the collar 101 (Fig. 6) fast on the printer shaft 82 carries opposed

lugs

102 and 163 thereon, fitting within longitudinal slots 104 and 105 (Fig. 5), respectively, in the mutilated cylinder cam 106, mounted on the sleeve 81 fast to the grouped

disks

80 and 88 and the disk 107. The slots 104-. and 105 divide the cylinder cam 106 substantially into two halves. The printer shaft 82 and its collar 101 are driven by any suitable means through one complete rotation in a counter-clockwise direction at each operation of the machine to rot-ate the cylinder cam 106 and the Geneva drive disk 80, thereby operating the receipt feeding mechanism as described above, and actuating other mechanisms hereinafter described.

Receipt feed control At certain operations of the machine it is not desired to issue a printed receipt, to prevent which the receipt feeding mechanism is disabled. This is accomplished by sliding the Geneva drive disk 80 to the left on the printer drive shaft 82, as viewed in Figs. 2 and 6, to withdraw the feed studs 83, 8 1 and 85 from the Geneva wheel 86, so that as the drive disk 86 rotates the studs are ineffective to advance the Geneva wheel.

The drive disk 80 on such withdrawal carries with it the locking disk 88, which would leave the Geneva wheel 86 unguarded were it not for the provision of the locking disk 107, which is of exactly the same diameter as the locking disk 88 and is likewise mounted on the sleeve 81, so that as said sleeve trips to the left (Fig. 6) the unmutilated disk 107 takes the place of the locking disk 88 to lock the receipt feed mechanism against any operation. The

disks

80, 88 and 107, and the mutilated cylinder cam 106 are all mounted on the sleeve 81 to rotate with the printer drive shaft 82 and slide as a unit axially on the shaft 82. This group of parts collectively will hereinafter be referred to as the Geneva drive unit.

A spring 108 (Figs. 2 and 6) coiled about the printer drive shaft 82 and compressed between a collar 109 fast thereon and the disk 107 fast on the sleeve 81 constantly urges the Geneva drive unit toward the left to disable the receipt feed m chanism, but normally is prevented from shifting said unit by a node 110 on the rim of one of the halves of the cylinder cam 106 bearing against the face of a beveled block 111 on a circular bracket 112 fast on the side of the printer frame 31. As the printer shaft 82 and its sleeve 81, and cylinder cam 106 rotate during the course of the operation of the machine, a second node 113 on the cylinder cam 106 similar to the node 110 is brought to bear against the face of the block 111 and as the printer shaft 82 and sleeve 81 continue to rotate, this node 113 eventually and at the proper time escapes the block 111 whereupon the spring 108 is free to slide the Geneva drive unit toward the left to disable the receipt feeding means.

Whether or not these parts may be slid, as de scribed above, at this time, depends further upon a control annulus 114 telescoped over the mutilated cylinder cam 106 and having at one end an inwardly extending circular flange 120 occupying an annular groove 121 (Fig. 6) formed by the periphery of the flange '79 of the sleeve 81 and the base of the cylinder cam 106 which is larger in diameter than the flange 79 and is secured thereto by rivets 97 passing through the drive disk 80 and locking

disks

88 and 107. The annulus 114, therefore, slides longitudinally with the Geneva drive unit and is free to rock in either direction about the cylinder cam 106. The control annulus 114 carries a pair of diametrically opposed tenons 122 and 123 on its edge, facing the brackets 112. These tenons are adapted to be either in or out of line with

notches

124 and 125 respectively formed in the bracket 112 so that when the control annulus slides toward the left under the influence of the spring 108 when the node 113 has escaped the block 111 the lugs may enter the notches, thereby permitting the spring 108 to continue to slide the Geneva drive unit to the left to disable the receipt feed. If the tenons 122 and 123 are slightly out of register with the

notches

124 and 125, then when the node 113 escapes the block 111 the tenons 122 and 123 bear against the outer recessed face of the bracket 112 to hold the Geneva drive unit in its effective position against the action of the spring 108. In other words the entrance of the tenons 122 and 123 into the

notches

124 and 125 or the non-entrance of the tenons into said notches determines whether the receipt feed driving mechanism shall operate or not.

A plurality of means is provided to determine the position of the control annulus 114 (Figs. 2

and 6) thereby determining whether or not a receipt shall issue. These means include a manually adjustable on and off knob, a manually set lever to condition the register or accounting machine to perform various operations, and means set differentially under the control of a plurality of manipulative keys. The mechanism for setting the control annulus 114 under the control of the on and off knob will be described first.

Control of the receipt feed by the on and off knob A flat ring 126 (Figs. 2, 4 and 6) is mounted on a recessed shoulder formed on the control annulus 114 and clutched thereto by teeth 135 (Fig. 6). The ring 126 in the end of the annulus 114 constitutes an abutment against which the face of' the disk 80 bears when the control annulus 114 rests against the bracket 112, the

abutment sustaining the thrust of the spring 108 at this time. When the nodes 110 and 113 on the cylinder cam 106 bear against the block 111 the cylinder cam takes the thrust of the spring 108 directly and the control annulus 114 is free to be adjusted at this time. As soon as the node 113 in rotating with the shaft 82, escapes the block 111, the spring 108 slides the sleeve 81 with its Geneva drive unit to the left (Fig. 6) whereupon the tenons 122 and 123 either strike the face of the bracket 112 or enter their

respective notches

124 and 125.

When the machine is at rest the cylinder cam 106 is in such position that its node 110 bears against the stationary block 111 on a bracket 112 and sustains the thrust of the spring 108 thereby relieving the control annulus 114 and its ring 126 of the pressure of said spring to free the annulus for adjustment. As one means to manually position the control annulus, with its tenons 122 and 123 at this time, there is provided a tubular sleeve 143 (Fig. '7) telescoped over a long stud 144 projecting from the printer side frame 31. The outer end of this sleeve is knurled as at 145 to afford a convenient grip for turning the sleeve, the inner end of which sleeve carries a cam disk 142 (Fig. 1) the periphery of which has a notch 139 of graduated depth formed therein with seats at its higher and lower ends.

One arm of the bell crank 138 fast on a shaft 134 journaled in the printer frame 31 carries a stud 146 yieldingly held in contact with the periphery of the cam disk 142 by a spring 140. A link 129 connects the remaining arm of the bell crank 133 with the outer end of a long stud 130 (see also Figs. 2 and 6) projecting from a lever 131 journaled on the stud 87. The link 129 is slotted as at 128 (Fig. 4) to embrace a pin 12? projecting from a lobe formed on the flat ring 126 secured to the control annulus 114.

The spring 140 constantly urges the bell crank 133 in a clockwise direction to draw the link 129 towards the right as viewed in Figs. 1 and 4. The link 129 in turn, operating through the pin 12'. to rock the ring 126, and with it the control annulus 114 counter-clockwise, to position the tenons 122 and 123 into line with the

notches

124 and 125 whereupon, as will be remembered, the receipt feeding mechanism is disabled during the next operation of the machine. The position of the control annulus 114 (Fig. 6), however, may be governed by the position of the disk 142 (Fig. 1) through its graduated recess 139, the bell crank 133 and connected parts.

The sleeve 143 is internally shouldered (Fig. 7) to form a seat for a plunger 151 held against the shoulder by spring 150 confined between the plunger and an abutment 152 on the stud 144. The pressure of the plunger 151 against its seat normally holds the sleeve 143 and its control disk 142 in their innermost positions, and to insure the retention of the manually operable sleeve 143 and disk 142 in either of its adjusted positions, the disk is equipped with holes 148 (Fig. 1) spaced apart from each other a distance equal to that through which the sleeve 143 is turned to set the control annulus 114. A pin 149 projects from the printer side frame 31 over which pin either hole 148 is fitted by the spring 150 when the sleeve is in either of its adjusted positions to lock the sleeve 143 and control disk 142 in either of their set positions.

Obviously in setting the sleeve 143 and control disk 142 it is necessary for the operator to first pull outwardly on the knurled sleeve 143 to disengage the disk 142 from the locking pin 149 and then turn the sleeve until further rotation is resisted by the contact of the roll 146 on the bell crank 133 with one or the other end wall of the graduated recess 139 in the control disk 142, which indicates to the operator that the de sired adjustment has been made. Whereupon the operator releases the sleeve to the action of the spring 150 which draws the sleeve and control disk 142 inwardly to fit the appropriate hole 148 of the disk over the locking pin 149.

If desired, a spring 147 (Fig. 1) connected to control disk 142 may be provided to restore the control disk and its sleeve 143 to one of their adjusted positions as soon as the control disk is disengaged from the locking pin, when the control has been set to the opposite adjustment prior to the preceding operation.

When the control disk 142 occupies the position in which it appears in Fig. 1 it maintains the bell cran 133 in its extreme counter-clockwise position th reby holding the link 129 in its left-hand position and the control annulus 114 with the tenons 122 and 123 out of register with their

notches

124 and 125 so that when the node 113 on the cylinder cam 106 escapes the block 111 and the spring 168 acts to slide Geneva drive unit and sleeve 81 toward the left, the

tenons

121 and 122 will strike the face of the bracket 112 to retain the Geneva drive in its effective position and feed a receipt.

However, if the control disk 142 is turned clockwire from the position shown in Fig. 1 the stud 146 influenced by the spring 140 will settle into the deepest seat in the recess 139 during the operation of the machine and enable the spring 140 to rock the bell crank 133 clockwise and draw the link 129 toward the right. The link in turn will rock the control annulus 114 counter-clockwise until the tenons 122 and 123 register with their

notches

124 and 125 so that at the proper time said tenons will enter their notches and enable the spring 168 to slide the Geneva drive unit toward the left thereby disabling the receipt feed ing mechanism.

When the on and 011 knob or sleeve 143 is in its on position, as shown in Fig. 1, a receipt will be printed and issued at each operation of the machine, regardless of the adjustment of other receipt feed controlling means. But if the knob 143 is turned to its off position with the stud 146 in the deepest seat of the control disk 142 no receipt will be issued unless it is determined by the other receipt controlling means that receipt is to be issued, in which case the bell 133 is rocked counter-clockwise independ ently oi the control disk 142 to rock the control annulus 114 to shift the tenons 122 and 123' out of line with their

notches

124 and 125 to retain the Geneva drive disk in its effective position.

Check feed controlled by keys As one such receipt feed controlling means, operable when the on and off knob or sleeve 143 is in its off position, to effect the issuance or" a receipt notwithstanding the apparent negative control of the on and off knob, the following mechanism is provided:

The keyboards of the machines to which this invention is applied are equipped with rows of amount keys (not shown) and a row of special keys which may be transaction keys to variously condition the machine for different operations to select special tote izers, etc. Such a row of special keys is shown at 251 (Fig. 8), depression of any of which inserts its inner end in the path of one arm or" an elbow lever 2.52 pivotally mounted at 253 on the outer end of a rocking arm 254 journaled on a hollow stud 255 supported in hangers 256, (one only being shown) mounted on crossrods 257 extending between the main side frames of the machine.

The remaining arm of the elbow lever 252 assisted by a link 258 likewise pivoted to the rocking arm 254 supports an angular latch 259 the inner end of which normally lies in front of a shoulder 260 formed on a driver 261 journaled on the stud 255 and connected by a link 262 to a cam lever 263 pivoted at 264 to one of the hangers 256.

Driving cams 265 fast on the drive shaft 266 cooperate with projections 267 spaced apart on the forked end or" the cam lever 263 to rock the latter rst clockwise, then counter-clockwise. The cam lever 263 communicates such motion through the link 262 to the actuator 261 to rock the latter similarly. The actuator 261 carries with it the arm 254 due to the latch connection 259 until the free end of the elbow lever 252 strikes and is arrested by the projected inner end of a depressed key 251 whereupon the latch 259 is withdrawn from the engagement with the driver 261 which completes its clockwise travel.

Disengagement of the latch 2.59 from the driver 261 engages the forward end of the latch with the proper one of a series of notches 268 formed in an arcuate bar 269 mounted on the crossrod 257 and arranged concentrically with the path of travel of the arm 254 to retain the arm 254 in that position at which the elbow lever 252 encounters the inner end of the depressed key 251, the unmutilated edge of the driver 261 as it completes its travel maintaining the outer end of the lugs 259 in looking position against the tension of the usual restoring spring 244. The arm 254 is thus differentially positioned according to the particular key depressed.

The driver 261 on its return picks up the differentially positioned arm 254 and returns it to home position in the manner well known in this type of machine. The differentially positioned arm 254 aided when necessary by a projection 270 on the cam lever 263 transmits movement to indi eating and printing mechanism (not shown) through a minimum movement beam 271 pivoted at is forward end at 272 to the diiferential arm 254 and bifurcated at its rear end to embrace a pin 273 located intermediate the ends of a link 274, the beam extending beneath the stud 265 on which it fulcrums. The upper end of the link 274 is pivoted to a segment 275 forming a part of the indicator mecharusm and the lower end of the link is pivoted to an arm 276 fast on a sleeve 277 journaled on the cross shaft 155 (see also Fig. 1) suitably mounted in hearings in the main side frames of the machine.

A segment 278 connected with the arm 276 engages with a train of mechanism (not shown) leading to a type carrier forming part of the printing mechanism (also not shown).

The key-controlled diiferential mechanism just described is old and forms a part of this invention only in so far as it coacts therewith to produce the novel results.

Obviously the difierential arm 254 through the foregoing connections, differentially rotates the sleeve 277 and segment 278 to variously position the corresponding type carrier (not shown) and this variously adjustable movement imparted to the segment 278 is utilized to variously position a control sector 154 (Figs. 1 and 8) journaled on the shaft 155 with which coacts a feeler finger or beak 153 fast on the short shaft 134 and turning with the bell crank 133. The hub of the sector 154 has a cross-over tall 156 extending through an aperture formed in the segment 278 so as to partake of the differential adjustment imparted to the segment under control of the keys 251.

It is obvious that with the roll 146 of the bell crank 133 seated in the deeper end of the recess 139 the provision of means other than the control disk 142 which will rock the bell crank 133 counter-clockwise (Fig. 1) against the tension of a spring 140 will shift the link 129 to the left and turn the control annulus 114 clockwise (Fig. 6) to position its tenons 122 and 123 out of line with their notches, and thus prevent the displacement of the Geneva unit.

The periphery of the sector 154 is provided with a step 160 intermediate the low portion 161 it being evident that such periphery may have any desired configuration any point of which may be positioned under the end of the feeler finger 153. This step periphery 160-161 of the sector 154 represents ten positions controlled by a row of nine keys 251 and a zero or home position. During an operation of the machine the sector 154 is differentially positioned corresponding to the particular key 251 depressed, the sector remaining in its last adjusted position until repositioned under control of another key 251.

The height of the step 160 above the step 161 (Fig. 1) of the control sector 154 is substantially equal to the difference in height between the high and low seats of the recess 139 of the control disk 142 and it is obvious that with the manually adjustable knob 143 in its off position at which time the roll 146 on the bell crank 133 is alined with the deepest seat of the recess 139 and with the control sector 154 adjusted to locate one of the low steps 161 in the path of the feeler finger 153 the spring 140 would tend to rock the bell crank 133 to its farthest clockwise position to seat the roll 146 in the deepest seat and to cause the free end of the feelerfinger 153 to contact the lower step 161.

Thereafter while the adjustment of the control disk 142 remains the same, it might well occur that a key 251 will be depressed to select a high step 160 of the control sector 154 for cooperation with the feeler finger 153 whereupon any attempt to rock the control sector will cause the rise of the step 160 to contact the end of the finger and result in breakage, strain, or other damage to the machine. To avoid this a stud 162 is provided on the locking disk 107 which stud contacts a concaved edge 164 substantially concentric with the drive shaft 82, when the machine is at rest, to restrain the lever 131 and bell crank 133 against yielding to the tension of the spring 140 until after sufficient time has been afforded the key control differential mechanism of Fig. 8 to properly position the control sector 154.

In operation, therefore, the stud 162 assisted by a supplementary stud 163, also on the locking disk 107 transverses the concentric edge 164 of the lever 131 to hold the latter, and consequently the control annulus 114 in home position throughout about 145 degrees of a complete rotation. During this time the bell crank 133 with its roll 146 and the feeler finger 153 are held suspended against the tension of the spring 140 to afford time within which to position the control sector 154.

The length of the concave edge 164 (Fig. 1) of the lever 131 bears such relation to the length of the nodes 110 and 113 (Fig. 6) of the cylinder cam 106 in their contact with the block 111 on the bracket 112 that the bell crank 133 with the feeler finger 153 are released for operation just prior to the escape of the node 113 from the block 111. The locking disk 88 has a sufiicient unmutilated periphery to hold the Geneva wheel 86 against operation during the time occupied by the

studs

162 and 163 in passing the concave edge of the lever 131 and the time occupied by the nodes 110 and 113 in passing the block 111.

It may be readily understood that a single shoe of a length to correspond with the position of the

studs

162 and 163 might be used in place of the studs if desired.

If on the previous operation of the machine assuming the control disk 142 to be positioned with its deepest seat in line with the roll 146 of the bell crank 133 the feeler finger 153 found a low spot 161 on the control sector 154, the spring 140 holds the tip of the finger in contact therewith at the end of machine operation. It is, therefore, necessary to rock the feeler finger counter-clockwise to raise the finger at the beginning of the next following operation to enable adjustment of the control sector 154 to position its high step 160 beneath the feeler finger should a corresponding key 251 be operated.

As the Geneva. drive unit (Figs. 4 and 6) completes its rotation, the leading stud 162 projecting from the face of the auxiliary locking disk 107 engages the upper end of the concave edge 164 of the lever 131 and rocks the lever counterclockwise slightly past the position in which it is shown in Figs. 1 and 4. This draws the link 129 toward the left to rock the bell crank 133. shaft 134 and feeler finger 153 counter-clockwise to clear the high step 160 of the control sector 154 so that on the next operation of the machine the latter may be adjusted to its new position.

Check feed controlled by total lever Machines of the type to which this invention is applied are provided with adjustable total levers manipulated by the operators to condition the mechanisms to print totals and clear the totalizers or to print the sub-totals, and with certain classes of work it is desired to print and issue a receipt only at such times.

In such event the on and off knob or sleeve 143 is set at its off position, which is its farthest clockwise position, and to enable the operator to obtain a receipt without having to remember to reset the sleeve 143 just previous to a totalizing or sub-totalizing operation, means is provided to render the receipt feeding mechanism effective when the sleeve 143 is set at its off position.

To this end the usual total control lever 168 (Fig. 3) integral with the cam-slotted plate 169, a fragment of which appears in Fig. 3, is journaled on a stud 170 suitably supported in the machine for manual operation. The lever 168 is the well known total control lever disclosed in the above mentioned Shipley patent and also fully disclosed in the Fuller Patent No. 1,242,170, issued October 9, 1917, and in the patent to Shipley No. 1,619,796, issued March 1, 1927. When the lever 168 is rocked in either direction from its intermediate adding position (Fig. 3) to any of its several positions to adjust the machine to take totals or sub-totals the cam slot 171 in the plate 169 wipes against a stud 172 entered therein and carried by an arm 173 on a multiplearmed lever 174 pivoted at 180 to rock the lever 174 counter-clockwise. A stud 181 on an arm 182 fast on a through shaft 167 (see also Fig. 1) journaled in the side frames of the machine, projects through a slot 183 formed by another arm 184 of the lever 174 and an arm 185 pivoted at 180 and connected to the arm 184 by a spring 186. The lever 174 on its counter-clockwise travel rocks the arm 182 and shaft 167 clockwise, as

viewed in Fig. 3, or counter-clockwise as viewed in Fig. 1. At a point adjacent the feeler finger 153 the through shaft 157 carries an arm 166 having a projection 155 adapted to contact an arm 187 extending upwardly from the feeler finger 153. If on the last operation of the machine the feeler finger 153 rests on a low step 161 of the control sector 154, the arm 18? carried thereby has been rocked into the path of the projection 165.

Hence when the total control lever 168 is adjusted prior to total or sub-total operations and rocks the through shaft 167 and arm 166 counterclockwise, the projection 165 on the arm 166 strikes the arm 187 and rocks said arm and the feeler finger 153, shaft 134 and bell crank 133 counter-clockwise to shift the link 129 toward the left. The link 129 rocks the control annulus 114 clockwise, so that the tenons 122 and 123 are out of alinement with the

notches

124 and 125 so that the nodes 113 and 11 i escape the block 111 to free the Geneva unit to the action of the spring 103, the tenons 122 and 123 will then contact the face of the bracket 112 and hold the feed disk in its effective position.

The total control lever 158 when restored to its normal or adding position rocks the shaft 157 clockwise, as viewed in Fig. 1, thereby releasing the feeler finger 153, shaft 134 and bell crank 133 to the action of the spring 140, which immediately rocks these parts clockwise until the finger 153 rests on the high step 168 of the control sector 15%, or the roll 146 seats in the shallower end of the recess 139.

Near the end of each operation of the ma chine, regardless of whether a receipt has been issued or not, a beveled edge 188 of the node 1 0 on the cylinder cam 1G6 rides up on the beveled end of the block 111 of the bracket 112 and earns itself and t e Geneva drive unit towards the right, compressing the spring 108 and positioning the feed studs 83, as and and the locking disk 83 in line with Geneva wheel 86.

Hammer disabling mechanism It is desirable to prevent operation of the printing hammer 39 (Fig. l) on operations when no receipt is to be issued. This is conveniently accomplished through the control bell crank 133 and a link 246.

Projecting from the printer side frame 31 (Fig. l) is stud 231 having journaled thereon a bail 250 carrying an car 245 to which is pivoted a long 1 k 246 extending downwardly through the printi g mechanism and bifurcated on ts lower end to loosely stra le a stud projecting from the printer side frame 31. A roller 248 on the link 245 p ojects across a cammed end 132 or" one arm of th control bell cred 133. As heretofore explained the bell crank is rocked clockwise by any one the plurality of provided for that purpose to disable the receipt feed mes--- anism, and on such movement the cammed of the bell crank cams the link 246 upwardly slightly to rock the bail 250 counter-clockwise. An arm 249 or" the bail 259 carries a laterally extending finger 251 (Fig. 1), which when bail 250 is rocked counter-clockwise, as described above, swings beneath a projecting shoulder 243 on one of the arms of the hammer 3- to block the impression stroke of the hammer.

The means for disabling the impression nie s and the receipt feedin means are all under a control or" any of the three manually set drives described above in connection with the receipt feed control, namely, the on and off sleeve 143, (Fig. 1) the control keys 251 (Fig. 8), and the total lever 168, (Fig. 3).

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms ail coming within the scope of the claims which follow.

What is claimed is:

1. In a machine of the class described, the combination with a drive shaft; and record material feeding means, of means to operate the record material feeding means, including a drive member shiftably supported on the shaft to drive the operating means; a spring supported on the shaft to shift the drive member; and adjustable means concentric with the shaft to determine the effectiveness of the spring.

2. In a machine of the class desc ibed, the combination with a drive shaft; and record material g means, including a drive member rotatable with and shiftable relatively to the shaft to its eifective and ineffective positions; means on the shaft to shift the drive member from one position to the other; an abutment; and adjustable means concentric with the shaft and cooperating with the abutment to control the position of the drive member.

3. In a machine of the class described, the combination with a drive shaft; and record material feeding means, including a drive member rotatable with and shiftable relatively to the shaft; of means on the shaft to shift the drive member to one of positions; an apertured abutment; and adjustable means to cooperate with the abutment to determine the effectiveness of the last means.

i. In a machine of the class described, the combination with a drive shaft, and record material feeding means, including a drive member rotatable with and shiftable relatively to the drive shaft; of means to shift the drive member in one direction; an apertured abutment; an adjustable control member; tenons on the control member to cooperate with the apertured abutment to control the shifting means.

5. In a machine of the class described, the com" bination with a drive shaft; and record material feeding means, including a-drive member ctuated from the drive shaft and shif-table into and out of effective position; of means tending to shift the drive member to one of its positions; means operable by the drive shaft to normally retain the drive member in the other of its positions throughout a of the rotation of the drive member; and an adjustable element normally adapted to retain the drive member in its last named position for the remainder of the rotation of the drive member.

6. In a machine of the class described, the combination with a drive shaft; and record material feeding means; including a drive member actuated from the drive shaft and shiftable into and out of effective position; of means to shift the drive member to one of its positions; a cam to retain the drive member in the other of its positions while the machine is at rest and during a part of the rotation of the shaft and drive member; and means adjustable into position to retain the drive member in the last F ed tation of the shaft and drive member.

'7. In a machine of the class described, the combination with a drive shaft; and record material feeding means, including a drive member rotatable with the drive shaft and shiftable relatively thereto; of means supported on the shaft to shift the driving means axially on the shaft; an apertured abutment; a control member mounted concentrically with and shiftable axially on the shaft between the drive member and the abutment; tenons on the control member adapted to cooperate with the apertured abutment to control the effectiveness of the shifting means; and means to adjust the control member relatively to the abutment.

8. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member shiftable relatively to and rotated by the shaft; of a spring to shift the drive member axially of the shaft in one direction; means to normally restrain the spring during part of an operation of the machine; and adjustable control means to determine the effectiveness of the spring during the remainder of the operation.

9. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member shiftable relatively to and rotated by the shaft; of a spring to shift the drive member axially of the shaft in one direction; means to restrain the spring during a part of the operation of the machine; adjustable control means to restrain the spring during the remainder of such operations; and means to render the last mentioned restraining means ineffective to restrain the spring.

10, In a machine of the class described, the combination with a drive shaft; and paper feeding means including a drive member shiftable relatively to and rotated by the shaft; of means to shift the drive member to one of its positions; means to retain the drive member in the other of its positions during a part of the operation of the machine; normally effective control means to retain the drive member in its first named positicn during the remainder of the operation; and means to render the control means ineffective to retain the drive member in its first named position.

11. In a machine of the class described, the combination of a drive shaft; and paper feeding means, including a drive member shiftable relatively to and actuated by the shaft; of means to shift the drive member in one direc tion; a cam to restrain the shifting means during a part of the operation of the machine; an apertured abutment; an adjustable control member shiftable with the drive member; tenons on the control member adapted to enter the aperture to enable the shifting means to function; and means to automatically adjust the control member to position the tenons relatively to the abutment.

12. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member shiftable between its effective and ineffective positions, and actuated by the shaft; of means rotatable with the shaft to temporarily retain the drive member in one of its positions; means adapted to shift the drive member to the other of its positions; and an adjustable control mechanism to determine the effectiveness of the shifting means.

13. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member shiftable between its effective and ineffective positions, and actuated by the shaft; of means rotatable with the shaft to temporarily retain the drive member in one of its positions; means adapted to shift the drive member to the other of its positions; an apertured abutment; and a control member adjustable relatively to the abutment to determine the effectiveness of the shifting means.

14. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member shiftable between its effective and ineffective positions, and actuated by the shaft; a block; a cam rotated by the shaft and cooperable with the block to temporarily retain the drive member in one of its positions; means to shift the drive member to the other of its positions; and an adjustable control mechanism to determine the effectiveness of the shifting means.

15. In a machine of the class described, the combination with a drive shaft; paper feeding means, including a drive member; of a control for the paper feeding means, including a sleeve mounted on the drive shaft to turn therewith and shiftable relatively thereto, the drive ember mounted on the sleeve; means to shift the sleeve and drive member to one of its positions; a cam on the sleeve having an effective and an ineffective position, the cam adapted when in its effective position to retain the sleeve and drive member in the other of its positions; an abutment; and an adjustable control. member interposed between the cam and the drive member concentric with the sleeve and cooperable with the abutment to determine the effectiveness of the shifting means during the time when the cam is in its ineffective position.

16. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member operated by and shiftable relatively to the drive shaft; of means to shift the drive member; an adjustable control member adapted in one position to restrain the shifting means, and in another position to enable the shifting means to function; automatically operable means to adjust the control member to its first named position; and means to adjust the control member to the second named position.

17. In a machine of the class described, the combination with a record material feeding means, including a drive member shiftable into and out of effective position of means to shift the drive member to ineffective position and to restore the drive member to effective position: and to restrain the shifting means during a part of the operation of the machine; means to restrain the shifting means during the remainder of the operation; and settable means to determine the effectiveness of the second mentioned restraining means.

18. In a machine of the class described, the combination with a record material feeding means, including a drive member shiftable into and out of effective position; of means to shift the drive member to one of its positions; means to restore the drive member to its normal position and to restrain the shifting means during a part of the operation of the machine; adjustable control means having an effective and an ineffective position to restrain the shifting means during the remainder of the operation; means to adjust the adjustable control control means; and a feeler finger to determine the effectiveness of the control means.

19. In a machine of the class described, the combination with a drive shaft; and record material feeding means, including a drive member actuated from the drive shaft and shiftable into and out of effective position; of means to shift the drive member to one of its positions; means to retain the drive member in the other of its positions while the machine is at rest and for a part of the rotation of the shaft, such retaining means adapted to restore the drive member to the last named position; and supplemental means adjustable to effective position to retain the drive member in its last named position when the first named retaining means is ineffective.

20. In a machine of the class described the combination with a drive shaft; and record material feeding means, including a drive member actuated from the drive shaft and shiftable into and out of effective position; of means to shift the drive member to one of its positions; a cam rotat able with the drive member; a stationary block with which the cam coacts to retain the drive member in the other of its positions while the machine is at rest and during a part of the rotation of the drive shaft, the cam adapted to restore the drive member to such last named position; an apertured abutment; an adjustable control member interposed between the drive member and the abutment and having tenons adapted in one adjustment of the control member to enter the aperture to oppose no obstruction to the displacement of the drive member to its ineffective position, and in another adjustment to contact the abutment and retain the drive member in its effective position; and means to adjust the control member.

21. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member actuated by the drive shaft and shiftable from and to effective positions; of means to shift the drive member to one of its positions; means normally retaining the drive member in the other of its positions while the machine is at rest and during a part of the operation thereof; control means adjustable to effective or ineffective position to determine if the drive member shall remain in its last named position during the remainder of the operation of the machine; a recessed control disk rotatable at will a linkage extending between the control disk and the adjustable control member to variously adjust the latter in accordance with the adjustment of the disk; and means operable upon the disk to restore it to one of its positions.

22. In a machine of the class described, the combination with a drive shaft; and paper feeding means including a drive member shiftable from and to effective position; of means to shift the drive member to one of its positions; means to temporarily retain the drive member in its remaining position; adjustable control means adapted in one adjustment to retain the drive member in its last named position during the ineffectiveness of the temporary retaining means; means to adjust the control member, including a recessed disk; a linkage controlled thereby and connected with the control member; and automatic means to shift the control member to a certain one of its positions irrespective of the adjustment of the disk.

28. In a machine of the class described, the combination with a drive shaft; and paper feeding means, including a drive member actuated by the drive shaft and shiftable from and to effective position; of means to shift the drive member to ineffective position; means to restrain the shifting means during a part of the operation of the machine; control means having effective and ineffective positions to determine the effectiveness of the drive member during the remainder of the operation; a link to position the control means; a lever pivotally supporting one end of the link; a disk supported on the drive shaft and secured to the drive member; and means on the disk adapted upon rotation of the disk to rock the lever to position the control means in its effective position.

24. In a machine of the class described; the combination with a drive shaft; and paper feeding means, including a drive member actuated by the drive shaft and shiftable fro-m and to effective position; of means to shift the drive member to ineffective position; means to restrain the shifting means during a part of the operation of the machine; control means having effective and ineffective positions to determine the effectiveness of the drive member during the remainder of the operation; a link to position the control means; a lever pivotally supporting one end of the link; a disk supported on the shaft and secured to the drive member; means on the disk adapted upon rotation of the disk to rock the lever to position the control means in effective position; a spring to actuate the link to rock the control means to its ineffective position; and means to obstruct the action of the second mentioned spring.

CHARLES H. ARNOLD.