Patent GB-546590-A (GB)
Title: Improvements in or relating to statistical machines
Filed: 1939-08-16
Abstract: 546,590. Statistical machines ; perforating. REMINGTON RAND, Inc. Aug. 16, 1939, No. 23597. Convention date, Sept. 3, 1939. [Class 106 (i)] [Also in Group VIII] A machine of the kind comprising means for sensing perforation patterns in master and detail cards, means for making a set-up of the master and pattern, separate pockets for receiving master and detail cards separate means for conveying master and detail cards to their receiving pockets, deflecting means for each conveying means arranged when operated to prevent the passing of cards to their respective pockets includes the combination with means for making a direct comparison between a perforation pattern sensed from a detail card and the contemporaneous setup made from a master card of means under the control of the comparing means to operate both said deflecting means when the result of the comparison is disagreement. The card feeding and comparing mechanism may be similar to that described in Specification 510,910, [Group VIII], and the driving &c. mechanism similar to that described in U.S.A. Specification 2,044,119. Master cards are fed singly from a box 290, Fig. 25, by a picker 292 into a sensing space between perforated plates 330, 331 against a stop 335 and whilst therein their perforations are sensed by a reciprocating pin box 360, of which certain pins located opposite to perforations in the card are locked in downwardly displaced position by slides 362 so that corresponding pins 395 in the reading retaining pin-box are also downwardly displaced and locked by slides 397, the displaced pins 395 in turn displacing pins 435 in the master card comparing pin assembly 425. Detail cards are fed singly from a box 170, Fig. 26, by a picker 172 into a sensing space between plates 220, 221 against a stop 265 and sensed by a reciprocating pin assembly 226, of which the displaced pins displace other pins 250, translator pins 260 and finally pins 455 in the detail card comparing pin assembly 445. The displaced comparing pins 435 and 455 interact through comparing levers 460 having forked ends engaging projections 464, 466 of smaller diameter than the forks so that a displacement of a pin 435 will transmit through a lever 460 only a partial displacement of a pin 455, and. vice versa; other projections 472, 474 coact with cam points 471, 473 in slots on comparison slides 470 and unless the perforation columns in the compared cards correspond one or more of the projections 472, 474 will remain located on a cam point or points 471, 473 causing comparison slide 470 to be held displaced to the front of the machine with the result that the wide part of an interponent bar 476 in its raised effective position will prevent the free rearward swing of a bail bar 640. The cams controlling the feeding, punching, sorting and stopping of the machine are mounted on a sleeve 600, Fig. 60, to which are keyed two ratchets 605, 615 each with four teeth and four dwells arranged staggered and adapted to be engaged by pawls 608, 618 mounted on levers 610, 620 so disposed that normally pawl 608 engages a dwell on ratchet 605 and pawl 618 is held out of engagement with ratchet 615 by a pin 623 on pawl 608. When as the result of a disagreement between compared master and detail cards bail 640 is unable to complete its rearward swing as shown in Fig. 60 the bell crank lever 639 prevents downward movement of lever 610 on the next downward movement of push rod 625 and lever 620 moves down alone causing pawl 618 to become free of pin 623 and later to engage a tooth on ratchet 615 and then on the next rise of push rod 625 to rotate the control cam sleeve 600 through one step. Master card picker operating link 294 is operated as shown in Fig. 32 by a bell crank 299 and slide 301 moved forwardly by a cam 190 and rearwardly by a spring 303 detail card picker operating link 174 is operated by an arm 177 and slide 179 moved forwardly by cam 190 and rearwardly by spring 303; slide 301 can be held out of action by engaging a pin 304 thereon with a latch 305 on a rock shaft 195 and slide 179 by engaging a pin thereon with a second latch 194 on rock shaft 195. For this purpose shaft 195 is rocked by a crank and vertical link 647 adapted to be operated through levers and links by one or more of the cams on the control cam sleeve 600, link 647 in its high position locking feed slide 179 allowing master card feeding only and in its low position locking feed slide 301 allowing detail card feeding only and in its intermediate position locking neither feed slide and allowing simultaneous feeding of both master and record card. The various control cams on sleeve 600 are referred to later. Punching mechanism.-In many types of operation the entire perforation pattern in the master card is punched in the detail card by mechanism including a removable punch translator 485, Fig. 50, the pins 490 of which transfer the displacements of the master card comparing pins 435 to a reciprocal set pin box 495 with which reciprocates a plate 516 carrying punch pins 517 so that the detail card which has been passed to a punch space between two plates 520, 523 is perforated to agree with the master card. If certain columns of data are not to be transferred the requisite keys 385, Fig. 25, are set in their locking positions. Perforation may take place in the event of agreement of designation data in corresponding columns of master &c. record cards for which the requisite interponent 476 has been set in elevated position and prevented when there is disagreement. The punch translator 485 is placed in position only when detail cards are to be punched. Feed control mechanism.-Five feed control cams are mounted on the control sleeve 600 which as set out above is rotated through 45 degrees when a disagreement is sensed by the comparison mechanism each of which cams may be rendered operative by lever mechanism operated by projecting lugs on an equal number of discs on a parallel sleeve 702, Fig. 32, settable by an operation selector dial at the front of the machine. One of these control cams is in the form of a plain disc 710, Fig. 32, engaged by a roller 711 on a lever 712 carried by another lever 714 and connected by a link 715 to an arm of a shaft 650 having another arm 648 connected to the link 647 controlling the locking of the feed slides. This feed control cam or ring 710 is of such diameter as to effect locking of neither feed slide and permits master and record cards to be fed simultaneously both on agreement and disagreement since although roller 711 is held in contact with cam 710 by the projection 717 on operation selector disc 718 rotation of the concentric cam 710 will have no influence on link 647. Other cams on sleeve 600 may be operative during this type of feeding to effect an agreement or disagreement card sorting, card punching, or stopping of the machine to insert extra cards. In addition to feed cam 710 four other feed control cams mounted on sleeve 600 may be caused to operate the link 647 and are rendered operative by the selector dial. All five feed cams are shawn in Fig. 69. The second cam 720 has four high dwells of a height permitting simultaneous master and detail card feeding on agreement and four lower dwells causing detail card feeding only on disagreement or vice versa since as shown in Fig. 69 this cam has a second key way for setting it displaced through 45 degrees on sleeve 600. Also on a low part of cam 720 becoming operative a rearward arm 655, Fig. 70, releases a shoulder 417 on a catch 416 from the arm 418 allowing the latter to be lifted by push rod 422 without raising arm 415 and rotating shaft 412 whereby operation of the retract bar 405, Fig. 25, by the link 410 is prevented and the set-up of the last fed master card reading retaining pins 395 is retained until an agreeing detail card is sensed whereupon sleeve 600 is rotated to bring a high dwell of cam 720 into operation. The third feed control cam 730 is a concentric ring of smaller radius causing detail card feeding only both on agreement and disagreement, the set-up by the master card reading retaining pins being maintained. The fourth feed control cam 740 has four low dwells of the radius of disc 710 causing simultaneous master and detail card feeding on agreement and four high dwells which on disagreement lift link 647 to its highest position causing master card feeding only. Since the last sensed detail card has to be retained in the sensing space until a corresponding master card is again sensed the card stop 265, Fig. 42, is held in its lower closed position all the time a high dwell on cam 740 is effective by a hook 660 on an arm 649 on shaft 650 engaging lever arm 281. The fifth feed control cam 750 has low dwells of same radius as the highs of cam 740 causing detail radius a cam disc 730 and high dwells of same card feeding only on agreement and master card feeding only on disagreement, the low dwells also causing retention of the set-up of the master card reading retaining pins and the high dwells also causing detail card stop 265 to be held closed. Cams 740 and 750 have second key ways at 45 degrees for adjustment in sleeve 600 to effect above operations on agreement and disagreement or vice versa. Sorting control mechanism.-Referring to Fig. 25 the master cards may be sorted into a rear box 25 or into an eject box 26 by operating a deflector 680 and the detail cards into a rear box 27, 27a, or into an eject box 28 by operating a deflector 690. These deflectors may be operated to eject master cards and detail cards for which there are no detail cards or master cards with corresponding designation punchings and are controlled by a cam 780, Fig. 71, with four low dwells and four high dwells such that when sleeve 600 is rotated bringing a high dwell into contact with roller 781 on bell crank 782 deflector 680 is raised by link 683 and deflects a disagreeing master card