Patent GB-191317196-A (GB)
Title: Improvements in Cash Registers and the like.
Inventor: HADDAN REGINALD
IPC: G06C7/10
Filed: 1913-07-26
Granted: 1914-07-27
Abstract: 17,196. Haddan, R., [National Cash Register Co.]. July 26. Cash registers with operating-means.-In a machine having a number of counters separately totalizing the amounts in special transactions, the counters are actuated bv racks in g e a with toothed sectors rotated differentially through the medium of arms secured to the sector shafts at different angles to co-operate with the key - stems. The racks are moved in one direction by spring levers and in the other by a restoring-frame, and the arrangement is such that additional movement of a rack for transfer purposes is possible, this movement being effected by springs interposed between the toothed sectors and their supporting shafts. In the complete machine as described in the Specification, the depression of amount keys and a special-transaction key (in either order), releases the operating-mechanism and the drawer and causes the amount set up to be added on the grand totalizer and also on the special counter, which is thrown into gear with the actuating-racks during their return movement brought about by the closing of the drawer or the operating of a hand-lever. The amount and the nature of the transaction are also indicated by means of drums and quadrantal cylinders. Keyboards and keyboard interlocks. - The stems of the amount keys 2, and the special transaction kevs 3, arranged in horizontal banks, are formed with notches 17, 18, Fig. 3, adapted to be engaged by detents 16 fixed to rock-shafts 15 provided with rigid arms 19, Fig. 8, in contact with pins 20 on a spring-controlled slide 21. In order to prevent operation of the machine while a key is being depressed, or vice versa, this slide 21 is interlocked by means of a lug 25 co-operating with a recessed slide 27 geared to the main shaft 32. To prevent simultaneous depression of two of the special keys 3, each key-stem has a. wing 59, Fig. 3, adapted to pass through a divided tube 60 containing sliding bolts 61, Fig. 19. The amount keys depressed are released at the end of the operation of the machine by the reciprocation of a sliding plate 52, Fig. 4, which, through a pawl 47, shifts a sliding bar 44 so as to turn the rockshafts 15 and thereby release the key-stems. This plate 52 is actuated on the return movement of the main shaft 32 by a pin 55. Machines with several item-value totalizers.- The separate special-transaction counters 130 are arranged in four groups of threes, and each is mounted on a frame 128 pivoted at 129 and rocked for engagement with the actuating-racks 91 by means of a bar 141 connected by a link 144, Fig. 3, with the throwing-in shaft 33. When a special key 3 is depressed, it thrusts upward the corresponding link 144, so that a shoulder 147 thereon is forced into a groove 148 in the shaft. When this shaft is rotated, the link and the bar 141 are actuated to throw in the counter, and are held by a rocking-frame 186 engaging a pawl 145 on the bar 141. The link controlling the throwing-in of the gland counter is engaged with the grooved shaft whenever any of the special department keys is depressed. This is effected through arms 182 which rest on each of the department-counter links 144 and are connected with the grandcounter link. The actuation of the shaft 33 takes place near the end of the forward rotation of the main shaft 32 and is effected by a spring 35, Fig. 8, when a detent 40 is removed by contact with the slide 27. Differential mechanism.-Below each key-bank is a shaft 29, Figs. 3 and 14, controlled by a coiled spring at its end and provided with arms 100 secured at different angles. Mounted on the shaft are toothed segments 95 corresponding in number with the lateral groups of counters and engaging the actuating-racks 91. The segments are connected to the shaft by a pin-and-slot arrangement and by springs 99, which are for the purpose of effecting transfer. When the keys have been depressed and the operation thus permitted to begin, a frame 112, pivoted at 113, and controlled by a cam 115 on the main shaft 32, descends and allows the actuating-racks 91, under the action of the springs on the shafts 29, to take up their differential positions as determined by contact of the depressed-key stems with the arms 100. On the return movement of the frame 112, the racks are raised to transmit the differential movements to the counters. Rotation of the shaft 29 when the key in the corresponding bank has not been depressed, is prevented by a latch which is released when a key stem is depressed by means of a pin 62 thereon rocking a shaft 39. In order to prevent movement of the actuating-racks unless a special-transaction key has been depressed, the shafts 29 are held by a hooked plate 107, Fig. 8, which engages pins 102 on the arms 101 fixed to the shafts 29. The plate 107 is moved by the rocking of the shaft 74 effected by pins on the key-stems. Transfer mechanism. -- At the end of the operative movement of the machine, the springs 99 between the differentially-moved shaft 29 and the toothed segments 95 are tensioned by a slight rotational movement of the shaft due to the action of the sliding plate 52 referred to above. If a transfer is to take place, a projection 136 on the lower wheel, Fig. 3, pushes upwards a slide bar 158, and a cam-slot 160 in this bar rocks a trip lever 155 so as to release a lever 152, one end of which normally acts as a stop 151 for the next higher actuating- rack. The removal of this stop therefore allows the spring 99 to raise the rack to add unity to the higher wheel. The slide bar 158 is restored to normal position by a grooved shaft 162, roclied by the machine, and the stop-levers 152 are re-engaged by a. rocking-yoke 170. Spring-influenced racks 91<a>, Fig. 8, controlled by similar transfer slide bars are provided for effecting transfer between the higher wheels of the counters. The actuating-racks are assisted in their descent by levers 124, Figs. 3 and 22, the upper ends of which may be engaged by bent projections 127 on levers 118 controlled by springs 117. The forward end of each lever 118 extends downwards to such an extent that when the restoring-frame 112 rises to lift the racks, it first engages and raises the levers 118 so that the influence of the springs 117 is removed from the levers 124 and therefore from the racks, which are thereby allowed to perform any transfer movements without restraint bv these springs. Differentially-moved indicators.-The amount indicators, consisting of duplicated drums, are actuated by rack bars 187 raised by links 122 carrying rollers 121 adapted to be engaged by the levers 124, Figs. 3 and 22. The transaction indicators 216<a>, comprising two sets of three nested quadrantal cylinders, are actuated by the sliding bars 141 connected with the counter selecting and engaging mechanism. When a bar is raised, a roller 225 on it engages an arm 223 and so through a sector and a rack turns the corresponding indicator to the necessary extent. The indicator racks are held by the frame 186, which is rocked to release them by a cam 193 on the main shaft 32, Fig. 9. This co-operates with the toe 190 of a plate 189 passing through lugs 188 on the frame. When the main shaft rocks in one direction, the frame is moved to release the indicators and counter-throwing bars 141, and the cam passes beyond the toe 190. On the return stroke, the cam again rocks the frame to cause it to take up its effective position. Cash-drawer mechanism.-When the necessary keys have been depressed, the shaft 80, Fig. 8, rocks so as to raise the drawer-releasing lever 83. The rear end of this lever carries a bent pawl 84, which co-operates with a pivoted spring-controlled latch plate at the back of the drawer. A locking-device between the lever 83 and the key-controlled slide 21 prevents opening of the drawer unless a key has been fully depressed. Operating-means.-A bell-crank lever 69 loose on the shaft 119, Fig. 22, is provided with a pivoted member 68, which co-operates with a slide moved whenever an amount key is depressed and with a pin on an arm rocked by the depression of any special-transaction key. Both of these manipulations are essential to the actuation of the member 68 and the lever 69, but either manipulation may occur first. The movement of the lever 69 releases the main shaft 32 and rocks the drawer-releasing shaft 80 through a spring 82. The main shaft, when liberated, rotates in one direction under the influence of a spring secured to a pulley on the shaft. A spring 236, Fig. 9, first retards the motion and then assists it, acting in the manner of a toggle, and a dasli-pot 210, Fig. 2, prevents uneven movements. The main shaft is returned by the closing of the drawer or by the operation of a hand-lever. In the former case, a lever 227, Fig. 2, is raised by the bracket 229 on the drawer, and a pawl 232 engages a projection 231 and so rotates the shaft. To prevent misuse of the machine by partial movements of the drawer, a latch lever 243, Fig. 2, is mounted with slight play on the shaft 113 and has two notches. In the position shown, the upper notch receives a pin 248 on the lever 227, which is thus held raised. When the shaft 113 turns, it causes disengagement between the pin and latch lever, and the lever 227 can descend. On the return movement, the pin first engages the lower notch and the lever cannot therefore again descend until the operation has been completed. The operating hand-lever 6, Fig. 12, used in place of the drawer for restoring the operating-mechanism, is secured to a loose disk 249 having pins 250 for engagement with lugs 251 fixed to the shaft 32. The lever is locked unless the main shaft has been released, by means of a bell-crank lever 252 moved for release by connexion with the restoring-frame 112. A hook 257 co-operating with one of the pins 250 and a projection 255 on one of the lugs 251, locks the main shaft 32 against forward movement unless the hand-lever has bee