Patent GB-987360-A (GB)
Abstract: 987,360. Mechanical calculating apparatus. NATIONAL CASH REGISTER CO. Nov. 21, 1963 [Nov. 27, 1962], No. 46006/63. Heading G4B. The Specification relates to totalizer timing mechanism. The machine described has a line of interspersed totalizers 451a and a single multipleitem totalizer 451. A toggle (Fig. 6) connected between shafts 441 and 413 is straightened by rotation of shaft 413 to engage totalizer 451 with actuators 440 and similarly for the interspersed totalizers. The movement of shaft 413 is controlled by movement of stud 420 (Figs. 2 and 4) on a link 422 pinned to a plate 424 on the shaft. A plate 418 is controlled by cam-operated limbs 419 and 428 to give two lateral and one vertical reciprocations during each machine cycle. An L- shaped link 416 moves with plate 418 during the lateral reciprocations which take place, the rightward movements before setting and return movements of the actuators and the leftward movements after the actuator movements. The vertical reciprocation takes place, downwardly after the setting movement of the actuators and upwardly after their return movement. The position of link 416 relative to stud 420 is determined by the movement of a function control slide 406. For non-add, there is no movement of slide 406 and the relative positions of stud and link are as shown. During the reciprocations there is no movement of stud 420 and the totalizer does not engage the actuators. In a total operation the link 416 is lowered so that stud 420 is adjacent the lower part of the end of the link. The first rightward movement of slide 418 will cause the link to move the stud with the slide and will result in rocking shaft 413 to engage the totalizer with the actuators for their setting movement. The downward movement of the slide 418 will then disengage link 416 from stud 420 but the stud will be returned to its original position by the edge of slot 414, disengaging the totalizer. There will be no further movement of stud 420. In a sub-total operation, link 416 is positioned so that stud 420 is adjacent the upper part of the end of the link. The first half of the cycle will be as in a total operation but the subsequent downward movement of slide 418 will be insufficient to disengage the stud and link so that the second lateral reciprocation of slide 418 will engage and disengage the totalizer with the actuators. In an addition operation, the link is positioned so that the stud is above the end of the link and there will be no action of the link on the stud during the first half-cycle. After the lowering of slide 418, however, the stud will be adjacent the end of the link and there will be engagement and disengagement of the totalizer during the second half-cycle. The link and stud mechanism is duplicated for the second totalizer line. Bendas key-selected functions,there are some lever selected functions in which the position of the function slide 406 or 406a is determined by a stud 433 on a rack 132 engaging stepped slots 431 or 431a on the slides. The rack is positioned by operation of the lever which is lockable. Selection of an interspersed totalizer is by a cam slot in a drum 263 rotated by actuator 53 (Fig. 6).