Patent GB-412973-A (GB)
Abstract: 412,973. Cash registers. NATIONAL CASH REGISTER CO., Ltd., 225, Tottenham Court Road, London.-(National Cash Register Co. ; Dayton, Ohio, U.S.A.) Nov. 7, 1932, No. 31368. [Class 106 (i).] In a cash register or similar accounting machine adapted for printing totals directly from totalizers, the totalizers and a set of item type-wheels are arranged in a normally-locked rotatable reel, the item type-wheels being situated in printing position during adding operations whereas for total printing the reel is rotated to bring the desired totalizer to printing position. The machine is released for an adding operation by depression of an amount key 40, Fig. 1, a clerk's key 41, a transaction key 42, and a motor bar 34. All the items are printed on a record strip, and are perforated on a card stored in the machine. In addition, items relating to certain classes of transaction are printed on an issued voucher and/or on an inserted slip. Totals are printed only on the record strip, the machine being released after the adjustment of a control lever 180 to totaltaking or subtotal taking position, the rotation of a knurled disc 721 to position a selected totalizer opposite the printing-platen for the record strip and the depression of the motor bar. The printing-mechanism for the record strip includes means for shifting the part of the strip to be printed from an inspection position beside an autographic opening 502 to a printing position and back. Keyboard. The machine is provided with the usual banks of amount keys 40, Fig. 1, a bank of clerk's keys 41 and a bank of transaction keys 42. The keys of each bank are slidable in a casting supported on crossrods 46, 47, Figs. 5 and 6, and are removable as a unit by rotating the flattened lower rod by a handle 49 normally held in operative position by the casing. Individual locks 214, Fig. 26, are provided for the clerk's keys 41. The locks are supported by a longitudinally slidable plate 215 and are each operable by an insertable key to remove a bolt 219 from the path of a stud 218 on the associated key-stem. Upon the adjustment of the control lever to "Unlock Clerks'" position, the plate 215 is freed and is shiftable manually to disable the locks. The key banks are of flexible type and provided with the usual detent and cam plates. An error correcting lever 201, Figs. 1 and 5, is adapted, when rocked in counter-clockwise direction about its pivot 202, to rock a release shaft 137 to release the depressed keys while restraining a lock shaft 123 to prevent operation of the machine. Machine release and sequence arrangements. The machine is released for an adding operation by the depression of an amount key followed by clerk's and transaction keys and the motor bar, mechanism being provided to compel the depression of an amount key prior to any other kind of key except the "No Sale" key, and an interlock being provided between the "No Sale " key and the amount keys. The depression of keys in the order stated releases a lock shaft 123, Figs. 19 and 21, for counterclockwise rocking, so that upon depression of the motor bar, a plate 127, that normally abuts the bar and engages by a pin 126 in a fork 124 rigid with the lock shaft, is released to move downwardly under the action of its spring 135. The movement of the pin 126 disables a detent 138 and permits a release shaft 137 to rock counterclockwise under the influence of a spring- impelled link 141, the ascent of which rocks an arm 30 to release the main shaft 20 and close the motor switch. Rocking of the release shaft serves to lock the depressed keys in depressed condition and to restore the plate 127 and lock shaft 123. The link 141 is restored at the end of one revolution of the main shaft by a stud 163 carried by a wheel 162 geared to the main shaft, the stud being adapted to abut an arm 164 of a lever whose other arm 166 is connected to the link. The downward movement of the link 141 rocks the release shaft past its normal position to release the depressed keys. An interlock is provided to prevent movement of the main shaft while the lock shaft is out of normal position, and vice versa. The interlock comprises a lever 170 co-operating with a cam 174 on the main shaft and connected to a detent 175 adapted to abut or be positioned beneath an arm 177 on the lock shaft. In total-taking operations, the machine is released after the adjustment of the control lever to a total-taking position, the rotation of the totalizer reel to select a totalizer and the depression of the motor bar. Adjustment of the control lever 180, Fig. 85, to total-taking position through cam surfaces 192 on a plate 186 and pins 191 on a pitman 181, shifts the pitman downwardly to rock the lock shaft 123 in clockwise direction, thus locking all the keys and positioning the arm 146, Fig. 21, of fork 124 to the right of stud 126 on plate 127. Upon the release of the plate 127 by the motor bar, the lock shaft is cammed further in clockwise direction, the resultant movement of pitman 181 being permitted by slots 189 in the plate 186. Adjustment of the control lever also serves bv clockwise rotation of a cam plate 745, Fig. 59, to permit a lever 900 to rock clockwise and interpose a shoulder thereon above an arm 796 on the shaft 145 carrying the switch arm 30, Fig. 19. Before the machine can be operated, the shaft 145 must be freed by rotation of the totalizer reel ; for which purpose, the reel is provided with a notched disc 904, rotation of which cams the lever 900 counterclockwise to ineffective position. The motor bar may be locked in depressed position by a lever 220, Figs. 1 and 85, rockable counterclockwise to engage its toe 222 in a notch 223 in the bar. During total-taking, this lock is disabled by the rotation of a cam 681 by a stud 683 on the rockable frame of the transmission line. Differential mechanism. The differential mechanism for the various banks are similar and each comprises a driver 241, Fig. 6, that receives a constant counterclockwise and clockwise excursion about a shaft 240 at each operation. A differential segment 242 is normally connected to the driver by a latch (not shown) pivoted to the segment and engaging a notch 243 in the driver. The segment follows the driver until arrested either by the abutment of a nose 249, thereon, with a zero stop pawl 74, or by the engagement of a notch in the latch with the cam-shaped end of a depressed key. The segment is locked in set position by the engagement of the latch within one of a series of recesses 248 in a plate 61. The setting of the segments 242 is transmitted to the indicators 310 and the perforating mechanism through a minimum-movement device, and to the totalizators and printing mechanisms through a transmission line comprising a series of shafts 268 ... 270 arranged in a frame 265, 266, Figs. 6, 85 and 87, concentrically about a shaft 264, the frame being rockable about a shaft 266<1> to enable the transmission to be disabled during total-taking. Minimum-movement device. A minimummovement linkage is associated with each bank and comprises a beam 313, Fig. 6, pivoted on a shaft 314 and normally restrained by an aligner arm 320 raised by cams on the main shaft 20 into engagement with teeth 319 on the beam. The beam is adjusted, while the aligner is disabled, by means of a link 315 pivoted to the differential segment 242 and provided with a slot 317 embracing a stud 318 on the beam, the links being moved into contact with the shaft 240 by arms 356 pivoted on a shaft 351 and actuated by a cam plate 355. Differentially-moved indicators. Two sets of indicator drums 310, Figs. 1, 5 and 6, interconnected by gears 331 and shafts 360, are set by the amount and clerks' keys, and are arranged on either side of a single transaction indicator drum in such a manner as to be visible to the salesman and customer, respectively. The indicators are normally restrained by camactuated aligners 329 and are set by toothed sectors 340 pivoted on studs 341 on the minimum-movement beams 313, each sector being further controlled by a stud 339 that is invariably positioned during each operation by the joint action of a cam-operated Y-shaped lever 336 pivoted on a shaft 335 and a two-armed lever 344 pivoted on the shaft 314. Flashes. Obscuring plates 365, Fig. 5, carried by a lever 366 are rendered effective during the setting of the indicators by the engagement of a stud 371, projecting from a wheel 33 on the main shaft, beneath the camshaped end of a pitman 367. The totalizer reel. The totalizers and the item type-wheels for the record strip are spaced around the periphery of a reel, Figs. 32 and 46, that is normally locked in position with the item type-wheels 377 opposite a printing platen, but may be rotated prior to total-taking about a shaft 386 to bring any one of the totalizers into printing position. There are six clerks' totalizers 372, four transaction totalizers 373 and a grand totalizer 374, each of which has mounted on the same shaft with it an associated counter 372<1>, 373', 374<1>, respectively. A counter 380 for registering the number of " Cash," "Received on Account " and "Paid Out " transactions is mounted on the item type-wheel shaft 376, and a "No Sale" counter 381 is mounted on a separate shaft. Each totalizer shaft 396, Fig. 34, is carried by arms pivoted to the end plates 382, 383 of the reel, and is adapted to be swung inwardly into engagement with central actuators 275, set by the differentials through the transmission line. Totalizer selection and engagement. All the items are entered into the appropriate clerks and transaction totalizers and into the grand totalizer, with the exception of items relating to " Paid Out " and " Charge " transactions, which items are entered only into the corresponding transaction totalizers. The totalizers are selected by a pair of plates 283, 300, Fig. 34 angularly positioned by the differentials of the cle