Patent GB-660620-A (GB)
Abstract: 660,620. Calculating-apparatus, mechanical. NATIONAL CASH REGISTER CO. May 6, 1949 [July 17, 1948], No. 12157/49. Class 106 (i). The totalizer of a calculating machine is engaged with its actuators by either of two oscillating members according to the required timing of engagement (e.g. add timing and total-taking timing), and one oscillating member (e.g. that for totaltaking) has alternative drives to provide a further control of the timing (e.g. read and re-set timing). Transaction keys and general operation. The invention is described embodied in an accounting machine for handling banking transactions. There are three lines of totalizers. A main line 371 (Fig. 20), at the rear comprises eight interspersed totalizers for accumulating "Deposit," " Cash in," " Cash out " and " Miscellaneous " items by A and B clerks and engaged by correspondingly marked transaction keys 101- 108 (Fig. 2). An inserted slip printer records a " Deposit " in duplicate on partially overlapped paying - in slips, and "Cash in" (cash portion of a deposit) on an inserted card used by the clerk to balance his cash account. The second or "Batch" totalizer line 351 comprises two interspersed totalizers, one for each clerk, and also accumulates " cash out " items. It operates in conjunction with an issuing - tape printer for providing details and totals of cashed cheques, the tape being torn off, after totalling, and passed with the batch of cheques to the auditing department. The third line 392 comprises a single " List " totalizer and has numeral rolls 391 located behind a reading aperture 127. It is engaged by the " List " key 112 in combination with a motorized key: with a " Cash out " key, for example, the amounts of a series of cheques being cashed can be accumulated to show the total cash to be paid over, whilst with the " Add " key 113, no other totalizer is engaged, the machine operates as a straight adding machine and the items and total can be printed on the issuing tape by depressing the " Add print " key 109. Totals and sub-totals are taken from the totalizers by correspondingly marked keys 110, 111 and 115-118 and are recorded on the issuing tape. A third printer maintains a record of all transactions on an audit tape retained within the machine. Amount differential mechanism. Differential slides 290 (Figs. 20 and 27), have ears 295 which abut the stems of depressed amount keys 100, or zero stop pawls 271 in orders where no key is actuated, when released to the action of springs 307 by forward movement of a universal restoring rod 310 controlled by cams on the main shaft 229. The rod 310 is carried by levers 311 and a roller 318 on one engages a spring-loaded arm 316 to restrain too rapid early movement. The slides 290 are racked to gear with rotatable carriers 303 for actuating segments 304, 305 and 306 (Fig. 35), for the three totalizer lines. The segments have a lost-motion pin and slot connection with the carriers to cover movement of the slides 290 from home to zero position and to provide for tens carry, a stud 412 on the segment being held up to a stop arm 413 by a spring 411 until the lost-motion is taken up. Zero stop pawls. The zero stop pawls 271 rock clockwise, to engage before flanges 298 behind the " 1 " ears 295 of the differential slides, when released by a yoke 272 early in the machine cycle. A depressed key 100, however, restrains a slide 261 connected with the pawl so that the pawl remains inoperative. In total taking and repeat operations, the yoke 272 is blocked by actuation of the respective transaction key, so that the zero stop pawls do not interfere with the movement of the slides 290. Tens carry. The totalizer actuating segments, e.g. 304 (Fig. 35), have a one digit lost-motion pin and slot connection 409, 410 with their carriers 303 and are normally arrested in the zero position, when the carriers are returned to the home position, by engagement of a pin 412 therein with a pivoted spring- loaded transfer lever 413, 418. At the point of transfer, a long tooth on the lower order totalizer wheel 350 trips a retaining detent 421 for the transfer lever which thereupon swings clear of the actuator pin 412 so that the actuator is moved by a spring 411 one step beyond the zero and into engagement with a stop lug 424, so carrying one into the higher order wheel of the totalizer. The stop lugs 424 are formed on spaced frame plates 425 pivotally mounting the transfer levers and their detents, and assembled as a unit on rods 426, 427. The mechanism is re-set towards the end of a machine cycle by arms 457, 458 on a series of multi-armed levers 450. These levers are pinned to the actuator support shaft 302 which is appropriately rocked by cams on the main shaft 229, the arms 457 then restoring the actuator segments by contact with their pins 412, and the arms 458 re-setting the transfer levers. Amount type setting mechanism. A typesetting slide 466 is disposed alongside each differential slide 290 (Figs. 20 and 27), and pivotally carries a pawl 468 for coupling engagement with teeth on the differential slide. The pawl 468 has a pin 485 engaged between forked arms of an operating lever 471 which is cam-slotted for timed actuation by a universal bar 473 extending across the machine and arranged to be oscillated by cams on the main shaft 229. Normally the two slides are coupled and with the types in the previously set positions so that repeat prints can be obtained. During a machine cycle, the universal bar 473 first disengages the pawls 468 so that the slides 290 are differentially set independently of the slides 466; the rod 310, however engages abutment edges 467 on the slides 466 and moves them forward one step beyond zero. Next the pawls 468 are reengaged so that, whilst the differential slides 290 are restored to home position, the typesetting slides 466 are finally moved with them to positions corresponding to the new amount entered. Each slide 466 is racked for driving engagement with a pinion 497 sleeved to a wheel 500 driving a ring gear 501 rotatable on a disc 509 carried by a common support shaft 510 for all the ring gears and extending across the machine. Interspersed with these ring gears are further ring gears, as 506 (Fig. 20), there being one in driving engagement with each type roll 465 on the printing line 463. Square shafts, as 504, threaded through the discs 509 carry pinions, as 503, for appropriately connecting the ring gears 501 with the ring gears 506 driving the type rolls of the three side-by-side printers. The drive to the highest order type rolls is somewhat modified: it is taken through a second set of interconnected ring gears on a parallel shaft 632 and then to the appropriate ring gears 501. This second set of ring gears also provides a transmission for the differential transaction controls as well as scope for modification of the machine. Zero print suppression. To suppress zero prints in the higher orders, the differential slide 290 is returned to home position before the coupling pawl 468 is re-engaged and in advance of the restoring rod 310. This is done by a pawl 531 (Figs. 20 and 27), carried by a camslotted lever 533 actuated by a roller 541 on the restoring rod carriers 311 and engageable behind (Fig. 27) a shoulder on the differential slide when arrested in zero position. The pawl 531 is disabled, if an amount is entered in a higher order, so that the slide 466 is then adjusted to print a zero. For this purpose, the pawls 531 are interconnected and, in an order where an amount is entered, a pivoted catch 536 is released by a pin on the differential slide to hold the pawl 531 in that and all lower orders depressed and inoperative. Repeat mechanism. For repeat operations, the pawl 468 is maintained in position to couple the slides 290, 466 throughout a machine cycle, by preventing movement of the pawl actuating bar 473 from the main cams 483 (Fig. 30). A locking pin 569 on a threearmed lever 567 enters a notch 581 in an arm 475 supporting the bar, and disables a pawl 477 through which movement to the arm 475 is transmitted. This locking movement of the three-armed lever 567 is effected by a cam 562 on the main shaft, but can only occur if the " Repeat " key 114 has been depressed to clear a lug 579 on its stem from a bell-crank 577 connected to the threearmed lever by way of links 576, 570 and interconnected gear rings 572, 575. As the universal rod 310 moves to and fro during a cycle, the coupled slides 290, 466 move forward until arrested by the slide 466 abutting its support bar 291 in the home position and then rearwardly to the previously set position of the slide 466. During the return movement, the slide 290 re-enters the amount on the totalizers engaged and the repeat print is taken when the slide 466 has returned. Transaction differential mechanism. A differential slide 689 (Fig. 37), under each of the two transaction banks is adjusted by contact of one of a series of ears 690 thereon with a pin 579 on the stem of a depressed key. Companion slides 712 are correspondingly adjusted and drive respective ring gears on the shaft 632; these ring gears are interconnected with further ring gears for differentially adjusting notched transaction control discs and for setting type rolls to print the transaction symbols. A cam pair 723 on the main shaft 229, through a follower 719 and a pin-and-slot connection, rocks a driver plate 716 (see also Fig. 10) clockwise carrying an arm 704 with it by engagement of a pawl 701 on the arm with a notch in the plate. A pin 700 on the pawl engages a cam slot in a toothed sector (not shown) meshing with the differential slide 689 which is carried forward until arrested by the depressed key. The cam slot in the now arrested sector then rocks the pawl 701 free from the driver 716 which completes its movement idly, whilst the pawl 701 locks in a tooth 727 in a fixed rack 728 so differentia