Patent GB-424420-A (GB)
Abstract: 424,420. Calculating - machines. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Perkins, M. ; 130, South Parkway, East Orange, New Jersey, U.S.A.) Aug. 16, 1933, No. 22834. Convention date, Sept. 1, 1932. [Class 106 (i)] A calculating-machine has one or more groups of totalizers, each group comprising interspersed elements mounted on a common sleeve which is moved axially to select a totalizer for actuation, the selection being effected both by keys and by a travelling carriage. The invention is shown applied to an Ellis machine of the type described in Specifications 28253/08, [Class 106], and 386,331 and comprising two ordinary totalizers, each capable of addition and subtraction, and two groups of interspersed totalizers, each group having nine totalizers mounted on a common shaft, the assembly comprising nine contiguous units elements, nine contiguous tens elements, &c. Subtractive control of ordinary totalizers. These totalizers are set for subtraction by the depression of respective keys or by stops on the travelling carriage. Interspersed totalizers. The totalizer pinions 117, Fig. 6, are mounted on a sleeve 116 slidable along a shaft 114 carried in a frame 130 which is movable vertically, Fig. 13, between plates 111. Key selection of interspersed totalizers. The totalizers are each selected for addition by an appropriate key 106, Fig. 15, which when depressed causes a link 213 to move to the right to rock a lever 212 which raises a link 223, Fig. 29, to swing a stop lever 232 into the path of a block 261 on an auxiliary slide 255, Fig. 15, slidably mounted on a main selecting slide 77. The main drive is transmitted to a pin 55, Fig. 4, on an arm 46 loose on the main operating shaft 47. When the pin 55 commences to swing upwards the shaft 47 is not moved for a short time until a projection 59 on the arm 46 strikes an abutment 50 to rotate a latch 51 to free its hooked end 52 from a stationary pin 53. The latch is pivoted to an arm 48 secured to the main shaft 47 and the pin 55 now engages the latch to operate the shaft. Towards the end of the return (anticlockwise) movement of the arm 48 the latch strikes another stationary pin 56 which rocks it out of engagement with the pin 55. During the initial movement of the arm 46 a roller 60 upon it rocks a cam 62 connected by a link 64 to an arm 74, Fig. 15, which moves the main selecting slide 77 to the left. The auxiliary slide 255 moves with the main slide 77 until arrested by the set stop lever 232, the continued movement of the main slide then stressing a spring 263. The movement of the auxiliary slide 255 is transmitted through an arm 267 to a shaft 270 having a lever 271, Figs. 19, 20, which pushes to the right a slide 133 having a cam slot 134 engaging a roller 125 on the totalizer sleeve 116. The wheels of the selected totalizer are thus brought opposite the actuating racks by power-driven means before the main shaft is operated. Carriage selection of interspersed totalizers. Stops 246 on a carriage bar 243 rock levers 234, 237 pivoted at 226 and coupled to the hanging bars 223. Actuation of selected totalizers. A plate 166, Fig. 27, is secured to the main shaft and pivotally carries a flying lever 170 connected by a link 172 to a slide 176. When the lever 212, Fig. 15, is rocked by a key or a carriage stop to select a totalizer, it contacts with a pin 282 on a lever 281, Fig. 18, which, through a spring 277 rocks clockwise an arm 275 having a pin 276 which rocks a lever 195, Fig. 27. The lever 195 is connected by a link 193 with a link 186 and lowers this latter link into engagement with a pin 183 on the slide 176. When the slide is moved to the right by the link 172 the link 186 rocks a lever 192 secured to the totalizer shaft 114. Also secured to the shaft 114 are arms 153 carrying rollers 156 engaging cam slots 160, Fig. 13, in the fixed plates 111. The shaft 114 and the interspersed totalizer assembly is thereby moved downwards to engage the selected totalizer with the actuating racks at the end of the first half-cycle of operation and upwards when the racks have returned to their normal positions. Transfer mechanism.-A transfer frame 135, 137 is vertically moved relative to the totalizer frame 130 by rollers 155 on the arms 152 engaging cam slots 162 in the transfer frame. Transfer sectors 290 are pivoted on a shaft 286 in the transfer frame. The slots 162 in this frame and the slots 160 in the stationary plates 111 are so arranged that during the anticlockwise movement of the arms 152 the totalizer and the transfer frames are moved down together with the transfer sectors and totalizer pinions in engagement until the totalizer pinions are meshed with the actuating racks, whereupon the transfer frame moves upward to disengage the sectors. The amount is then entered in the totalizer and the arms 152 returned clockwise, the transfer frame first descending to engage the sectors and pinions and then moving upwards together with the totalizer frame. The transfer sectors have lips 291, Fig. 8, extending into gaps in latches 293 having projections 295 engaged by shoulders on levers 297 pivoted in the transfer frame and connected by pin-and-slot connections 300 to trip levers 301 pivoted in the totalizer frame. When a totalizer pinion passes through zero the lever 301 is rocked to trip the latch 293 which is moved by a spring until its part 310 rests against a bar 307. The bar 307 is carried by levers 305, Fig. 10, having arms 330 each provided with a step 333 normally engaged by a lever 324. The arms 152 on their return rock the levers 324 so that a spring 328 can turn the levers 305 and bar 307 clockwise into the position shown in Fig. 10. The released latches 293 can follow the bar 307 and through the lips 291 rock the transfer sectors 290 to advance the totalizer pinions. The bar 307 is restored and the parts relatched at the beginning of the next operation by cams on the lower ends of the arms 152 engaging arms 316 carrying levers 314 acting on rollers 311 on the levers 305. Total-taking. The interspersed totalizer from which the total is to be taken is selected by depressing a key 106 or by a stop on the carriage, and a total key 101 or 103 is then depressed, depending on which group contains the totalizer under consideration. A latch 345 is rocked by a spring 350 when the key 101 is depressed and rocks a total cam 357 into the path of a flying lever 374 connected by a link 362 to a plate 367 carrying a pin 371. A pin 376 on the latch 345 pushes to the left a link 378 pivoted to the lever 195 which latches the link 186 over the pin 371 so that the totalizer shaft 114 is rocked to engage the selected totalizer for a total-taking operation. The total key 101 is released by a release bar 382 having a lug engaging the latch 345, a lever 393 being pivoted to the end of the bar 382 and engaged by a shoulder 168 on the plate 166 during the anticlockwise return movement thereof, the lever 393 striking a fixed stop 400 and drawing the release bar to the left to free the depressed total key. The release bar may also be actuated by depressing the release key 105. Sub-total taking. The totalizer is selected by a key or a carriage stop as previously described and a sub-total key 102 or 104 is then depressed, according to whether the selected totalizer is in one or other of the two groups. When the key 102 is depressed its latch 404 swings to rock the total cam 357 into active position and to move the link 378 to the left to couple the shaft 114 to the pin 371 on the plate 367. A release bar 412 is also moved to the right and rocks a lever 391 into the path of a stud 178 on the operating plate 166. Towards the end of the initial (clockwise) movement of the plate 166 the stud 178 rocks the lever 391 to restore the bar 412 and key 102. The link 378 then moves to the right to couple the link 186 with the adding slide pin 183 and the total cam 357 is moved out of the path of the flying lever 374. Since the adding slide is not returned to its right-hand position until the actuating racks are restored, the totalizer is kept engaged with them until after this restoration is effected and thus a sub-totaltaking action is obtained. The sub-total key may also be released by depressing the release key 105. Key-controlled non-add mechanism. The depression of the non-add key, Fig. 23, allows a spring 418 to move a lever 417 having an ear 422 which raises a lever 423 connected by a link 426 to a lever 431 provided with a blocking member 432 which prevents movement of the lever 195 and so keeps the totalizers out of engagement. This mechanism is restored by the total-key releasing bar 382. Carriage-controlled non-add mechanism. The lever 423 is also movable by a link 424 controlled by stops on the carriage. Releasing totalizer selecting keys. The totalizer selecting keys 106 are released by a bar 433 which is moved to the left by a rod 383, Fig. 27, when a release key 105 is depressed. The release key has a roller 437 which engages an arm 440 carrying the rod 383. The rod 383 also releases the total, sub-total and non-add keys. Starting-bar lock. The starting bar is locked by a latch 443, Fig. 26, which is released in the following circumstances. (1) When either of the ordinary totalizers is selected for addition by a carriage stop raising a hanging bar 454 or 464, the bars being connected respectively to levers 453, 463, having studs 452, 462 which rock a lever 450 connected to the starting-bar latch 443. (2) When either of the ordinary totalizers is selected for subtraction by a carriage stop raising a hanging bar carrying a pin 456 or 458 engaging the latch 443. (3) When any one of the total or sub-total keys relating to the ordinary totalizers is depressed, the releasing bars 470, 471 for these keys rock the lever 450 to release the latch 445. (4) When any one of the total or sub-total keys for the interspersed totalizers is depressed, its releas