Patent GB-546819-A (GB)
Title: Improvements in or relating to tabulators
Filed: 1940-02-06
Abstract: 546,819. Statistical machines. REMINGTON RAND, Inc. Feb. 6, 1940, No. 2302. Convention date, March 21, 1939. [Class 106 (i)] Statistical machines of the type described in Specification 26896/13, [Class 106 (i)], and in U.S.A. Specifications 2,044,119 and 2.066,406 are provided with means for stopping the machine after a predetermined number of either group total or grand total taking operations such an operation directly advancing the counter by one unit every time it is operated. The group total or grand total taking is initiated by a change in the group or grand group designation on the card, and the new card is retained in the sensing chamber during the operation initiated thereby so that the dates thereon may be entered in the succeeding series. Intermediate pins 42, Figs. 3 and 7, hold a designating setting taken at the start of a new series and a change therein is detected by the raising or lowering of pins 42 which moves cam slides 51 engaging studs on the pins to thrust interponent members 54 either against a bail rod 55 swung from a rock shaft 57 or against bail rods 55 and 58. The interponent members 54, one for each slide 51, are pivoted to tabs 52 slidable on transverse combs 53, Fig. 3, and can be manually set to an upper, intermediate or lower position in which respectively they are idle, rock bail 55 and shaft 57 only, or rock both bails 55 and 58 with both shafts 57 and 60. Thus a tab can be set to intermediate position to take a group total as at 52T at the change in one designation column and another tab may be set as at 52G to take a grand total for a change in another column. The type and printing numbers are as described in Specification 26896/13, [Class 106 (i)], the stop basket and its operation as in Specification 520,683 and the transfer and algebraic mechanism as in Specification 493,842, the arrangement being such that the quantitative data from the cards are entered only on the near accumulator 170 that at the front 171 being in the non-add condition. Where a group total is taken it is transferred to accumulator 171, and when a grand total is taken, the total of the last group is transferred to the accumulator 171 and the grand total taken therefrom. The mechanism is based on that described in U.S.A. Specification 2,044,119 and for group total it performs these five functions :-(1) Stop card feed, (2) hold new card in sensing chamber, (3) free sensing pins, (4) rock total shaft of the accumulator and (5) restore total taking control to ineffective condition to allow ordinary accumulation operation to proceed. For a grand total two additional functions are performed prior to the last or restoring function (5) above, namely (4a) shift total taking control from group total to grand total control at the end of group total taking, and (4b) rock grand total shaft of the computing mechanism during the grand total taking cycle. A new group designation having been sensed shaft 200, Figs. 6 and 7, rotates through a third of a revolution in each of three steps during two machine cycles. In the first step the cams on shaft 200 vary the normal operation of the machine and condition it for the cycle to follow ; in the second step the cams control a group total taking cycle in the third the total taking control mechanism is restored to ineffective position to allow normal accumulation from the cards to proceed. As described in U.S.A. Specification 2,044,119 a complete revolution of shaft 200 is completed in nine steps, each cam having three separate working segments. The mechanism for controlling group and grand total taking consists of actuating cams 210, 220, 230, ratchet wheels 268 and 259, control cam 283 and a detent wheel 291 all fast on shaft 200; and a ratchet wheel 301 and two cams 326 and 316 fast on a sleeve 300 loose on shaft 200, this sleeve only turning when grand total is taken. This assembly is driven from a shaft 10 by snail cams 250, 260 engaging rollers 251 and 261 to raise bars 254, 304, and 264 driving the ratchet wheels. Cam 210 stops the card picker action, cam 220 frees pins 42, cam 230 lowers link 235 once during group total operation and twice during grand total operation, to actuate lever arms 240 and 245, and cam 326 through lever 330, link 331 and link 335 into engagement with the pin 244 and lever 245 for a grand total. For a grand total shaft 200 is actuated through six steps during the four cycles required, the cams 210, 220 and 230 being rotated through two successive three-step sequences. During the first sequence, the last group total is taken from the rear accumulator 170, printed on the report sheet and transferred to the front accumulator 171. During the second sequence the grand total is taken from the accumulator 171 and printed on the report sheet. In this operation sleeve 300 is actuated only by cam 260 immediately after the beginning of each cycle, whereas the shaft 200 is actuated at different times in the same cycle. Stop after predetermined number of group or grand totals effecting. The link 235 is lowered for each total to be taken, a group total if rocked to rear to engage a pin on lever 240, a grand total if rocked to the front to engage a pin 244 on lever 245. The link has a pin 67 to engage a nose 62 on lever 61 adjustable on its hinging plate 63 so that it may be rocked for counting group or grand totals. The lever 61 can be moved and locked in its hinging plate 63 to bring the nose 67 into the position for group or grand total counting, or if it is desired to count both totals, lever 61 with wide nose operable by the pin 67 in either of its positions is employed. A link 68 is pivoted to the plate 63 and to a lever 71, Fig. 10, pivoted on a shaft 72 of the counting and automatic stop mechanism and having at its upper end a pivoted pawl 73 spring urged to engage a ratchet wheel 76 held by a second pawl 103. Both pawls have studs 106, 107 which can be engaged by the edge of a plate 108 hinged on plate 109 rockably mounted on a bolt 110 to an extent allowed by a slot and pin 112. The plate 108 is spring urged towards the studs and the plate 109 is connected by a link 111 with a lever 113, Fig. 1, which is rocked each time the main clutch 161, 162 is operated. In the enclosing framework 77, Fig. 11, secured at the rear of the machine are two plates 78, 79 supporting the counting and automatic stop mechanism, and provided with central bearings 80, 81 in the former of which rotates a sleeve 82 fixed to a dial 83 graduated to read to the teeth on the ratchet wheel 76 and read through an opening 69. The sleeve is keyed to a shaft 72 having a knob 84 attached by a screw 85 and abuts against a cup 86, loose on the shafts and housing a spring 87 coiled on the shaft which presses a washer and a sleeve 93 secured to the shaft by a set screw. The ratchet wheel 76 is secured to a circular block 96 integral with the shaft 72 and journalled in the bearings 81 around which is coiled a spring 95 with one end secured to the plate 79 and the other to the ratchet wheel in such a way as to urge it counter-clockwise screwed from the handle. The number of totals to be taken before the machine is stopped is controlled by a stop 117, Figs. 10 and 11, with a base which can be slid to position in an annular groove between rings 118 and can be locked by bolts 120, and having a nose 121 to engage the nose 122 of a stop plate pivoted at 124 which on being struck pulls a link 127 to rock a stop arm 129 to position a member 130 between an upwardly moving arm 131 and a lever which rocks the lever 113 to declutch the drive. On thus stopping, the link 111 is raised to lift the plate 109 and plate 108 to raise the pawls 73 and 103 and free the ratchet wheel which is returned by the spring 95 under control of a dash pot piston 100 geared by a segment 98 to a pinion 97 fast on the shaft 72. If while the machine is set for normally taking a certain number of totals before stopping it is desired temporarily to take a smaller number the knob 84 is pushed in and the dial 83 brought to read the difference between the total desired and the number of totals for which the stop 117 is set. The cup 86 has fast to it a plate 88 with a slot engaging a pin 92 on plate 108 so that the plate 108 is rocked by thrusting in the knob and the pawls are released to engage and hold the ratchet wheel against return by the spring 95. If the machine is to be started with a new stack of cards and no card in the sensing chamber, a group and grand total will be taken if the designation control is set for grand totals. For the count to be correct a lever 136, Fig. 10, is provided, pivoted at 137, with faces 140 and 141 to engage a pin 133 on the ratchet disc for group and grand totals respectively, a face 134 being in position for runs starting with cards in the machine. The faces 140 and 141 are offset to give one and two ratchet tooth steps from face 134. The lever 136 is held by a spring 138 and has teeth 142 corresponding to the faces for engagement by a holding pawl 139 which is raised to release the lever 136 when the stop 117 engages the nose 122 of the stop plate. The automatic stop action may be dispensed with by rocking a lever 145 to cam a lever 148 to press a roll 151 against the tail of the counting pawl 173 and lifts it out of action. Specification 328,319, [Class 106 (i)], and U.S.A. Specification 2,034,102 also are referred to.