Patent GB-248002-A (GB)
Abstract: 248,002. National Cash Register Co., (Assignees of Shipley, B. M.). Jan. 19, 1924, [Convention date]. Cash registers; item and operation counters.- In a machine capable of registering single-item and multiple-item with total transactions, the number of single-item transactions are counted under their respective classifications while the multiple-items and the totals thereof are each counted separately and in their respective classes. operations of the machine by the various clerks are also counted by corresponding counters. The keyboard contains in addition to the usual banks of keys a transacticn bank consisting of two groups of keys, one for multiple-item entries and the other for single-item transactions. Transaction counters. There are nine of these, namely, one for each of the transaction keys, one for the " No sale " key, and one each for counting the complete multi-item cash and charge transactions. The counter to be actuated is selected by an arm 437 positioned by the differential mechanism of the transaction bank through link 435 and is operated by means of the known mechanism comprising toggle links 411 and a reciprocated plate 414. In ordinary itementering operations this plate is given a reciprocation by means of a link 424 provided with a pin 425 normally engaging the radial portion of an L-shaped slot 426, Fig. 6, in an arm secured to a shaft 428 rocked by a cam on the main shaft. The differentially positioned arm 437 carries a spring-controlled radially slidable bolt 439 normally maintained in effective position as shown in Fig. 5 by a cam 442 connected with an arm 444 controlled through a link 454 by the shaft 268 rocked clockwise, first manually and then mechanically, by the total-taking mechanism in the known manner. When the total of a multi-item transaction is being taken the manual rocking of this shaft causes, through a cam slot 456, a pin 457 and a lever 458 abutting against a pin 460, a counterclockwise, movement of a lever 461. and consequently, through a pin and slot 463, a clockwise displacement of link 424 to position the pin 425 in the other limb of the slot 426 and thereby disable the means for reciprocating the plate 414. At the end of the first cycle, however, the further rocking of shaft 268 restores the pin 425 and permits the operation of the counter. If the total taken belongs to a charge transaction the bolt 939 is positioned opposite the multi-item counter 452, but the final rocking of shaft 268 shifts the cam 442 to permit withdrawal of the bolt, and at the same time the inclined edge 480 of arm 444 engages beneath a pin 481 to raise a lever 483 pivoted on the arm 437 at 440 so as to place its end into operation relation with the toggle links of the multi-item transaction charge counter 450. In the total-taking of a multi-item cash transaction, the action is similar and results in the actuation of counter 449. In all other total-taking operations the transaction counter operating- mechanism is disabled, a cam on the total lever causing a counterclockwise movement of a cam plate 493 so as to rock a lever 495 and therefore the lever 461 to disable the link 424. Clerks' counters. These are operated by the toggle mechanism shown in Fig. 8 in single-item transactions, but during the entering of multiple items a plate, 211 is shifted to the right to remove its lugs 213 from the paths of the toggle links 190 and thereby prevent any operation of a counter. The plate is restored to effective position for the second cycle of the total-taking operation. The counter is selected by the, clerk's key by means of a pin 189 on the key adapted to lower the link 190 into abutting position. Specifications 8119/15 and 248,763 are referred to.