Patent GB-522563-A (GB)
Title: Improvements in statistical machines
IPC: G06K19/04
Filed: 1938-11-07
Abstract: 522,563. Calculating- machines; record-cardcontrolled statistical machines. REMINGTON RAND, Inc. Nov. 7, 1938, No. 5328/40. Convention date, Nov. 13, 1937. Divided out of 523,532. [Class 106 (i)] In a calculating-machine having a holding pawl 533 for each of the type-carrying actuators 176 of the totalizers 181, the holding pawls can be individually operatively coupled to a (or several) common control member 554 (e.g., on total-taking shaft 505 or group-designation shaft 562) which engages and disengages the pawls with the actuators. The invention is illustrated in a record-card-controlled statistical machine of the grouped-card controlled, pin-box type; each vertically moving actuator 176 having type 178 and a rack 180 which coacts with a pair of intermeshed add and subtract totalizer wheels for each denomination. As described in Specification 523,532, shafts 505 and 506 rock counterclockwise for total-taking and grand-total-taking respectively, and when either of those shafts rocks, the group-designation shaft 562 is rocked clockwise by means of arms 563-565, Fig. 4 (not shown). A pawl-controlling shaft 561 is rocked counter-clockwise by the total-control unit to prevent the racks 176 slamming upwards when the totalizers are unmeshed. The differential risings of the actuators 176 are controlled by stops 225, Fig. 1, which are in turn controlled from the card reading through decoding mechanism as described in Specification 522,512. To prevent these stops 225 from affecting the actuators during total-taking operations, a common bail which normally allows them to move left, Fig. 1, is controlled as follows. Shafts 506 and 505, Fig. 6, have arms 521 and 524 connected by links 522 and 525 to two levers 523 which have pin and slot connections to two links 526 pivoted to a single bell-crank 527. A link 528 connects the latter to a bell-crank 530 which acts as a latch to a pin 531 on lever 285 which, as described in Specification 523,532, is operated by cam 288 to move the above-mentioned common bail for the stops 225. By the pin and slot connections between parts 523 and 526, either shaft 505 or 506 may throw in the latch independently. The construction is such that when a little before the beginning of a total or grandtotal cycle, either shaft 505 or 506 is rocked, the latch 530 is thrown in and the lever 285 is held clockwise so that the stops 225 are held retracted throughout the cycle. During total-taking cycles, racks 176 other than those that coact with totalizer wheels (there are more racks than denominations) are controlled by the means below. The pawls 533, Fig. 7, are pivoted to a common rod 540 in slots of a bar 541 which also limits the counter-clockwise motion of each pawl. Each pawl is connected by a spring 543 to a control bar 544 which is slidable in slotted bars 545 and 546. A latch 547 pivoted to each bar 544 may engage the bar 546 to hold the bar 544 to the left so that the corresponding pawl 533 is held counter-clockwise to lock its rack 176 against rising; or the latch 547 may be moved 90 degrees clockwise from the position shown in Fig. 7 whereupon the bar 544 is moved right to rock pawl 533 clockwise to release its rack. Pivoted to each bar 544 are two members 551, 552 which may co-operate with bars 554 set axially in arms on the shafts 505, 506, 561, 562. Pins 556 on' the members 551, 552 coact with the upper edge of the bar 544 and with notches 560 in arms 557 pivoted to the bar 544 and pulled down by springs 558. The pieces 551, 552 may be set by hand clockwise or counter-clockwise so that the bars 554 meet the abutment, righthand ends, or the hooked, left-hand ends respectively of the members 551, 552. The piece 552 is shown in neutral position so that neither shaft 561 or 562 may control the bar 544 and its holding pawl. As shown, at a grand-total cycle the shaft 506 rocks counter-clockwise and its bar 554 meets the lowered right-hand end of each piece 551, thus moving the bars 544 to the left and rocking the pawls 533 counter-clockwise to disable the actuator racks 176 during the grandtotal-taking cycle. Ordinarily, in columns of the machine associated with totalizers, the pieces 552 are set clockwise to be coactive with shaft 561 and the latches 547 are rocked clockwise. At any total-taking cycle this shaft 561 is rocked counter-clockwise so that pawls 533 hold the racks during the second half of such a cycle to prevent the racks from jumping up when the totalizers are unmeshed from the racks at about mid-cycle. As explained in Specification 522,512, the totalizers may be adjusted laterally to coact with desired actuators 176 and any type bar 176 not so used may be selected to print the groupdesignation off the, first card of a group. For the actuator 176 so selected the latch 547 is rocked clockwise and the piece 552 is turned counter-clockwise. Shaft 562 normally stands counter-clockwise as shown, so that it holds the hooked end of piece 552, holding the bar 544 to the left and the pawl 533 locking the rack. Shaft 562 is rocked clockwise when shaft 505 or 506 is rocked counter-clockwise, and the selected bar 544 is able to move to the right and release the correlated rack 176. During this total or grand-total cycle, however, the latches 530, Fig. 6, hold the stops 225 retracted as explained above so that the group-designation type bar rises fully and nothing is printed. Also when shaft 562 is moved clockwise a pin rigid with it engages a latch 571, Fig. 5 (not shown), which holds the shaft clockwise. Although the actuator-restoring bar releases the pin, the shaft 562 is still held by shaft 505 or 506 and towards the end of the total-taking cycle the pin is relatched, so that bar 544 is still to the right and pawl 533 away from the rack 176. During the first half of the next cycle the designation type bar moves upwards and is controlled by stops 225 to print the designation off the first card of the new group. Shortly afterwards the latch 571 (not shown) releases the shaft 562 which returns clockwise to normal, carrying the bar 544 with it, the pawl 533 re-engaging the rack. In a modification, Fig. 9 (not shown) the spring 543 holding each bar 544 and pawl 533 together, is above the point of abutment and there is also another spring at the left-hand end of the bar 544 which tends to pull it to the right. U.S.A. Specifications 2,151,406, and 2,044,119 also are referred to.