Patent GB-610224-A (GB)
Title: Improvements in or relating to machines for verifying perforated record cards
IPC: G06K5/00
Filed: 1946-04-01
Abstract: 610,224. Statistical apparatus. THOMAS, A., RHODES, F. S., and BROWN, M. R. April 1, 1946, No. 10096. [Class 106 (i)] A verifying machine for record cards of the type comprising upper and lower zones adapted for combination code punching, comprises a column of settable elements and a column of sensing pins to each zone, each of the zonal columns of sensing pins being independently operable to sense a column of its associated zone and serving to set the corresponding zonal column of settable elements in accordance with the perforations sensed, a group of actuators to each zone, each actuator serving, when operated, to actuate all the sensing pins of the associated zone, a single group of keys for operating both groups of actuators, and a testing member to each settable element operable by the corresponding actuator to test the position of its respective settable element and give an indication as to whether the position is incorrect. The group of keys is displaceable as a whole out of co-operative relation with one group of actuators and into co-operative relation with the other group. The embodiment comprises a modification of the verifying machine described in Specification 430,251. The keyboard provides for ú s. d. entries and each key 13, Fig. 4, is formed on a slide 22 mounted in guides 23, 24, and co-operating by pin-andslot connections 29, 30 with sectors 25, 26 to provide smooth parallel motion. Depending lugs 31 on the key slides engage L- shaped members 38 when the keys are depressed. The members. 38 are divided into two groups, for upper and lower card zones respectively, and the lugs 31 engage the members 38 of one group (L.H. group in Fig. 4) for one position of the keyboard, and the members 38 of the other group when the keyboard is displaced. Each key will engage either one or two of the members 38 according to the code. The L-shaped members 38, Fig. 1, are pivoted at 41 to actuators 19 and are guided for substantially parallel motion by combs 35, 39, with rollers 36 running on the edges 37 of the comb 35. The actuators 19 operate the sensing pins 14 and testing pins 47, as described in Specification 430,251, but there is a separate frame 15 for each group of pins and the pins of one zone only are operated at a time. The displacement of the keyboard for selection of the upper or lower zone of a card is controlled by a two-position lever 70, Fig. 6, which, by means of a lug 67 engages and rocks a doublearmed member 62. The member 62 is linked to a spring-urged slide 59 and this provides a toggle action to snap the member 62 one way or the other. The lower projections on the member 62 push on a lug 66 integral with the keyboard and displace the latter accordingly. In one position of the keyboard the " space " key 12, Fig. 2, with its lever 53 co-operates with an arm 58 on a transverse shaft 51 which carries another arm 57 linked to an actuator 50, so that operation of the " space " key actuates the frame 15a. In the other position of the keyboard the " space " key lever 53 engages an arm 52 pivoted to the shaft 51 and linked by a member 55 to an actuator 50 for the frame 15. An inking device for marking each card column as it is verified comprises an ink container 74 from which lead two coil-spring covered wicks 75, the free ends of which are clamped in a bracket 76, Fig. 1, secured to the pin-carrying frames 15, 15a respectively.