Patent GB-380218-A (GB)
Title: Recording and card punching machines
Filed: 1931-08-05
Abstract: 380,218. Statistical-cards. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Elliott-Fisher Co. ; Cedar Street, Harrisburg, Pennsylvania, U.S.A.) Aug. 5, 1931, No. 22211. [Class 31 (ii).] Selective punching machines.-In a machine for printing and punching statistical record cards the punching mechanism comprises stationary punches and travelling punch selecting mechanism and the printing mechanism a travelling printing carriage with type mechanism which operates the punch selecting mechanism. Cards are fed from a hopper 6 to a printing position P. Keys 78 are operated to effect printing on the card and to selectively position the punching selecting bars 16. Handoperation of a lever 102 feeds another card to printing position and feeds the previous card to punching position Q, where it is punched. It is then fed to a delivery hopper 7. Punching mechanism, Fig. 8. The card is fed by rollers 20 on to a die plate 9 against a cam-operated stop 30. Punches 11 and selector bars 16 equal in number to the hole spaces in a card are arranged beneath a carriage 40 carrying a single column of setting levers 50 operated by Bowden wires 127. The carriage is moved by an escapement mechanism of known form associated with latch, restoring &c. mechanism. At the end of a setting operation a cam lifts the card to effect the punching. Printing mechanism, Fig. 7. Keys 78 operate type-bars 77 mounted on a carriage 5 movable in a base 75. Key levers 79 are connected by sub-levers 129 to Bowden wires 127 connected to operate the punch selectors. Code, Fig. 29a. There are 38 characters to be printed and punched. There are 12 punches in each row. Numerals 1-12 and letters A-L are expressed as single poles, letters M-Z are expressed by the holes 1-11 in combination with the 12 hole. The letters U, 0 and X are represented by the same perforations as V, Q, Z respectively. The punch selectors are operated from the typewriter keys by Bowden wires 127 operated by the sub-levers as shown in Fig. 10. The 12 punch is operated in combination by a bail. Certain of the keys are connected by bails. Feeding mechanism, Fig. 7. The cards are fed from the hopper 6 through a gate 97, with micrometer adjustment 98, by feed mechanism consisting of independent slides 88, 89 coupled by a pin-and-slot connection travelling on tracks. Hooks 92 on the slide 88 take a card from the hopper 6 to printing position and the slide 89 transfers the card from printing position to the feed rolls 20 of the punching mechanism. Hooks 93 on the slide 89 remove the card from printing position and advance it to the punching position. The slide 89 moves independently until it reaches the position shown in Fig. 13 (not shown), and the pin-and-slot connection then causes both slides to move together. The card slides are moved on operation of the handlever 102 geared to a shaft 105 carrying pinions 107 engaging racks 108 on the slides. Driving mechanism. The machine is driven from an electromotor 32 and a one-revolution clutch 34, controlled by a lever 38 operated by a wire from the card slides. As the card is fed to the feed rolls the clutch is let in to rotate the rolls. The platen 86 is swung out of the way of the slide by a spring 115 when a lock is released by the slide. Line spacing mechanism, Fig. 3a. The slide 89 carries a rack 142 engaged by a spring pawl 143 and a holding pawl 144. Depression of a key 153 swings a lever 145 about a lug 150 to permit the pawl 143 to engage the rack. Further depression swings the lever 145 about a pin 147 to feed the rack back the distance of a line space. When this movement is completed a spring 152 swings a lever 151 to engage the pawl 144 with the rack.