Patent GB-221142-A (GB)
Abstract: 221,142. Haddan, A. J. H., (National Cash Register Co.). May 30, 1923. Transfer-mechanism for the totalizing-counters of calculating machines, for example, that described in Specification 221,134, comprises two levers set by the lower numeral wheel in its passage from 9 to 0 so as to couple thereto by means of a hooked lever, a transfer actuating member which is subsequently moved into engagement with and advances the next higher wheel one unit by means of sliding members actuated from the main operating shaft. In the machine referred to, the totalizer pinions 175 are arranged in groups in denominational units on two rows of shafts 176; each pinion has a transfer tooth 441, Figs. 6 and 11, which at transfer is adapted to rock an arm 435 on one end of a shaft, the other end of which carries an arm 436 having a pin 437 that normally bears against a shoulder 438 in a slot 439 of a lever 424 but moved to the end 442 of the slot by the action of the transfer tooth. The lever 424, pivoted on a stud 423 on the intermediate frame plates 380, has a hooked end 426 and a slot 425 which receives a pin 395 on a corresponding hooked arm 393 pivoted to a horizontally slidable plate 382. Movement of the lever 424 causes such a movement of the arm 393 that its hooked or slotted end 394 engages a pin 432 on the end of a transfer actuating member 430 pivoted at 431 to a vertically slidable plate 400. By this means the parts are moved from the position shown in Fig. 6, to that shown in Fig. 11. The slides 400 are first moved downwards to effect the engagement of the transfer actuating member 430 with the wheel of next higher denomination and the additional step movement is imparted thereto by a movement of the horizontal slides 382 which through the arms 393 rock the actuating member 430. The return movement of the slides 400, 382 to normal position restores the parts to the position shown in Fig. 11. The slide 400 now receives a movement beyond its normal position so as to cause a stud 443 thereon to engage and rock the lever 424 and arm 393 in a clockwise direction. This movement rocks the arm 436 until the pin 437 again engages the shoulder 438 of the lever 424 whereupon the slide 400 returns to normal position and the transfer parts assume the position shown in Fig. 6. The reciprocation of the slides 400 of the upper and lower row of totalizers is effected by arms 397 fixed to shafts 384, 396 which are rocked by means of a sliding rack bar 408, Fig. 17, engaging sectors on the shaft and having an additional rack 410 gearing with a. sector 411 on a three-armed lever 412 having rollers bearing on cams 415, 416 loose on the main shaft 150. The cams are adapted to be rotated in a counterclockwise direction during each cycle of operation by a clutch member 417 slidably and rotatably mounted on the main shaft. Movement of the horizontal sliding members 382, Fig. 5, is effected by arms 383 pivotally mounted on the shafts 384 and connected by a pin-andslot connection to a lever 385 loose on the shaft 346 and provided with rollers engaging cams 388, 389 secured to the shaft 150 and arranged in pairs in staggered relation for the purpose of permitting subsequent transfer actuation. When there is no transfer the arm 424 is not rocked so that although the transfer actuating member 430 is moved by the slide 400 into engagement with the next higher wheel it is not rocked by the movement of the slide 382 as the arm 393 receives a small clockwise movement through the pin 395 and slot 425 to prevent the pin 432 of the actuating member engaging with the slot 394 of the arm. The actuating members act as aligning devices for the totalizer pinions a special member being provided for the units denomination which member is secured to the slide 400 by a stud.