Patent GB-498829-A (GB)
Title: Improvements in or relating to record-card controlled statistical apparatus
Filed: 1937-07-13
Abstract: 498,829. Statistical apparatus. BRITISH TABULATING MACHINE CO., Ltd. July 13, 1937, No. 19423. Convention date, July 14, 1936. [Class 106 (i)] In apparatus controlled by grouped cards in which each group total is punched in a separate blank summary card, this punching is prevented for singlecard groups and a device separates, at least in part, the card of a single-card group from the cards of multi-card groups. For this, an off-setting magnet 61 moves the card of a single-card group transversely to its normal direction of travel so that it protrudes from the remainder of the cards in the discharge magazine. The tabulator has the usual upper and lower brushes UB, LB, and group control circuits GC with major and minor relays 39, 40. The lower brushes are connected as required by lines 12 to counter magnets 10 and printer magnets 11 which are energized simultaneously in each denomination. The counter wheels are controlled by electromagnetic clutches and are geared to rotatable brushes moving over commutator segments which are used for total-taking as described in Specification 356,304. If switch 47 is open, the holding circuit during tabulating is extended to include card lever contacts 48 and card lever relay contacts 70a, Fig. 1b; contacts 48 and 70a are in the punching machine and prevent tabulating if the summary card to be punched is not properly positioned. When a group change occurs, circuits GC de-energize motor control relay 41 to interrupt card feeding and adding and, if switch 50 is closed, initiate total-taking and resetting. The initiating circuit 14, Fig. 1, 41b, 50, L3, 51a, 52, P3, 19 includes contacts 51a which are opened by the relay 51, Fig. 1a, during summary punching, so that the reset mechanism is not brought into play at a group change until punching is completed. When contacts 51a are closed, the initiating circuit energizes magnet 52, so that contacts 52a and L4 energize the reset clutch magnet 93 for motor RM. With switch 54 closed, the auto reset magnet 53 is energized under control of the punching mechanism after total-punching has occurred, contacts 201, Fig. 1b, referred to below. The circuits controlling the relay 51 are at the foot of Fig. 1a. Fig. 1a is a continuation of the circuits at the foot of Fig. 1 and Fig. 1b of those to the right of Fig. 1. During the reading of the first card of a group a circuit 14, Fig. 1, LCL, 55, Fig. 1a, L34, 56, 19 energizes a set-up relay 56 which holds itself through contacts 56a and closes contacts 56b. During the reading of a second card (i.e. multi-card group) a circuit 14, L33, 56b, 57, 19 energizes a second set-up relay 57. The latter holds itself through contacts 57a and closes contacts 57c which energize the relay 51 through switch 58 or 59 if either is closed. As above described, relay 51 opens contacts 51a to prevent resetting until the summary card is fully punched. Contacts 39c, 40c are closed by the de-energization of relays 39 or 40, or both, near the end of the cycle in which the last card of a group is read. Relay 51 holds itself energized through contacts 51b and 53b until the latter are open by the energization of relay 53 after punching is completed. Near the end of the last of a series of card feeding cycles, cam contacts L35 close to energize a relay 71, Figs. 1a and 1, which, by closing contacts 71a, connects the reading out commutator 32 of the counter to the punch selecting magnets 60, Fig. 1b. For a single-card group the " second-card " set-up relay 57, and therefore the magnets 51 and 71 will not be energized ; contacts 51a remain closed and the reset clutch magnet 93 is energized immediately after the group change ; contacts 71a remain open and thus no punching occurs. For a single-card group, mechanism is provided which moves the card laterally as it passes through the machine so that finally all the cards of single-card groups project from the remainder of the cards. During a reset cycle a relay 62 is energized over a circuit 14, Fig. 1a, P13, 57b (closed only for single-card groups), P12, 62, 19; relay 62 holds itself over contacts 62a and also closes contacts 62b to energize the offsetting relay 61. For a multi-card group, " secondcard " set-up relay 57 is energized to open contacts 57b so that magnets 62 and 61 can not be energized. While the total-taking and resetting cycle is in progress the card of a single-card group is at position A, Fig. 5; upon resumption of card-feeding the card reaches position B, resting upon the open jaws 63 of the stacker drum 64, as magnet 61 is energized. The armature of the latter carries an arm 67 which pushes the card laterally to its path of travel to separate it partly from the other card in the discharge stack. If a switch 68, Fig. 1a, is closed the relay contacts 56b are short circuited so that the " second-card relay 57 is energized in each listing cycle, and the off-setting magnet 61 can not be energized. Also, relay 57 will cause relay 71 to close contacts 71a, Fig. 1, for every card group. Punching machine. Blank cards are fed by a pusher 73, Fig. 2, from a magazine 72 to a position in which the left-hand, or first, card column is under a row of punches 74. From there, the card is fed by a pusher 75 controlled by escapement mechanism. Contacts 48, Fig. 1b, below the magazine 72, are closed as long as cards are in the magazine and a card between the magazine and the punches 74 closes contacts 77, which energize a relay 70, Fig. 1b which closes contacts 70a and 70b. Brushes 82 on the card carriage 84, Fig. 2, carrying the pusher 75, traverse contacts 80 and strip 81, Fig. 1b, so that as the columns of the blank card are successively presented to the row of punches 74, the punch selector magnets 60 are successively connected by commutator 79 to the successive denominations of the counter through the reading-out device 32. When an energized magnet 60 advances its interposer it closes contacts 95 which energize the punch magnet 49 to effect punching and to allow the automatic escape of the carriage 84 by one card column. When the card punching is completed, the carriage closes " last column " contacts 191 which energize a relay 89 and the punched-card ejecting magnet 199. The ejecting mechanism closes contacts 201 which energize the auto-reset magnet 53 over circuit 134, Fig. 1b, 89a (closed by relay 89), 201, 90, Fig. 1, 53, 91, 175, Fig. 1b, 83b, 133. Specification 362,529, [Group VIII], also is referred to.