Patent GB-322544-A (GB)
Abstract: 322,544. National Cash Register Co., Ltd., (National Cash Register Co.). Sept. 8, 1928. Divided on 322,532. Cash registers; item and operation counters.- In a cash register adapted to register single-item and multiple-item transactions, the operation of the clerk's item counters is subject to the character of the transaction so that the clerk's counters take account only of, for example, sales (" cash " and " charge "). In addition to the clerk's and transaction counters there is an item counter for all single-item and multiple,-item " cash " or " charge " operations, a counter for item-totals, and a total transaction counter for all registrations made. The clerk's and transaction counters 610, 395, are arranged in a single bank and correspond in position with the equivalent keys in the divided control bank, as described in Specification 322,532. The counters are of the known type and are operated by the reciprocation of a slotted plate 602, the counter for operation being selected by levers 652, 662 linked with the clerk's and transaction differentials respectively. The levers carry arms 653, 663 kept in operative position with respect to the counteractuating links 600 by bearing on rails 655, 665. Of these the latter is fixed but the other is supported on arms 656, 658 for movement radially with reference to the rod 640. Control of clerk's counters. When a transaction other than cash or charge is being registered, a pin 667 on the transaction differential lever 662 is placed below a projection 666 on the rail 655 and thus permits this rail to be drawn inward by a. spring 668 when a lever is rocked, as described below. Consequently the arm 653 is disabled and no operation of a clerk's counter can take place. Operating mechanism for the counters. A cam on the main shaft rocks a shaft 623 on which is fixed an arm 624 provided with an L-slot to rock, through a link 628, the lever 629 loose on shaft 269. Also loose on this shaft is another lever 630, Fig. 4, carrying a notched arm 632 adapted to seize a pin 634 on lever 629 and thus couple the two levers together. The lever 630 is forked at 635 to rock the counter-operating plate 602 and the lever 629 has a pin 638 to operate the item and other counters referred to below. Item, item total, and total transaction counters. These are arranged as shown in Fig. 3 and are selected by a shaped arm 670. In all operations of the machine other than total (or sub-total) taking operations the lug 671 of the arm stands adjacent the actuating-link of the total-transaction counter 617. In an item total-taking operation, however, the rocking of shaft 250 occurring as usual in such an operation, displaces the arm by means of a link 673 to remove the lug 671 and to place the next lug 672 in position for effecting actuation of the item-total counter 612. By means to be described later this counter will not receive operation in ordinary total-taking but only when item-totals are being taken. A third lug 681 is on an arm 680 pivoted on the arm 670 and controlled by a cam-ended arm 683 linked at 684 with a shaft 657. When a transaction other than cash or charge is being entered and the pin 667, Fig. 2, allows the rail 655 to move as already described, the shaft 657 is rocked clockwise and similarly moves the arm 683 to allow the arm 680 to descend and be ineffective, thus preventing operation of the item counter. Counter operation control. Loose on a shaft 290, Fig. 6, is a slotted arm 305 rocked in all single-item operations by a pawl 315 as described in Specification 322,532. Fast on the shaft is another slotted arm 300 coupled with the arm 305 by a pin 302 on a link 303 and connected by a link 691 with a plate 692 also linked at 695, Figs. 2 and 4, with an arm 696 secured to the rock-shaft 250. Flexibly connected with this arm is an arm 697 cam-slotted to control the coupling- arm 632. When the pawl 315 is operative the shaft 290, plate 692 and arms 696, 697 are rocked clockwise to couple together the levers 629, 630 and thus permit operation of the counter-operating plate 602. During the entering of multipleitems the pawl 315 will be ineffective and no operation of the clerks and transaction counters occurs therefore. When the item total is taken however, operation is necessary, and this is provided for by the rocking of shaft 250 (and therefore of arms 696, 697) due to the displacement of the total-lever as usual, and the consequent coupling-up of the levers 629, 630. During the second cycle in total-taking operations all operation of the counters is prevented by the provision on the shaft 250 of an arm 702, Fig. 2, controlling the link 628 so as to throw the pin 627 of this link into the portion 625 of the L-slot, at the end of the first cycle. To prevent all operation of counters when totals other than item-totals are taken, another means for disabling the link 628 is provided. This consists of a bell-crank 705, Fig. 5, controlled by a cam plate 707 rocked by the total lever in clerks or transaction total-taking to raise the pin 627 into the portion 625 of the slot. To prevent any action by the pawl 315 in such total-taking operations the loose arm 305, Fig. 6, is rocked clockwise by the lowering of pin 302 in the fast arm 300 due to the connection of link 303 with the rock-shaft 250.