Patent GB-1225396-A (GB)
IPC: G06K1/06
Filed: 1968-08-28
Abstract: 1,225,396. Selective punching machines. C. JONES, (Universal Time Punch, Inc.). 28 Aug., 1968, No. 41018/68. Heading B4B. A punch-and-die data recorder comprises punches 79 slidably mounted in a stripper block 77 located above a die block 84 so as to leave a slot 103 into which a card can be inserted, a lever 86 for moving the die and card to the punches while some of the punches are selectively prevented from movement thereby punching the card and, a solenoid 95 for actuating the lever 86 when the card is correctly positioned. The selection of the punches 79 is effected by a number of pivoted levers 33 each having a toothed quadrant 35 such that when a lever is moved to a selected position it is retained therein by means of spring-loaded pins 122, Fig. 6, engaging in a particular tooth. The levers 33 are also provided with projections 42 arranged to provide abutments for arms 140 formed on interposers 41. The number of interposers corresponds to the number of rows of punches, ten as shown, and are slidable on bars 132, 133 under the action of springs 143. The interposers are all maintained in the forward position shown in Fig. 6 by means of a bar 152 carried by a pair of levers 149 which are actuated by a shaft 151. In operation, after the levers 33 have been moved to their selected positions a push-button is depressed which energizes an electric motor (165, Fig. 7) so as to rotate cams 168, 169, 170. Rotation of the cam 169 rotates a shaft 127, Fig. 6, via levers (180, 183, 185, Fig. 9) so as to force a plate 124, Fig. 6, into contact with the pins 122 and so lock the levers 33 in their selected positions. Rotation of the cam 170 rotates the shaft 151 thereby moving the bar 152, Fig. 6, away from the interposers so that they move rearwardly until stopped by an arm 42 of an associated lever 33; projections 45 on the interposers are then held over the top of the selected punches 79 preventing their free upward movement. When a blank card is then inserted into the slot 103 a switch 107, Fig. 5, is actuated thereby energizing a solenoid (57, Fig. 3) which, via levers (58, 60) and 108 causes pilot pins 106 to drop into holes (28, Fig. 2) pre-formed in the card. The lower ends of the pilot pins then make electrical contact with points 111 so as to close a circuit to a solenoid 95, Fig. 5, which, via a link 88, actuates the lever 86. The die 84 is raised and thereby causes the selected punches to punch the card. The selection of the punches may be effected by means of a master card placed on a tray 24, the pre-formed holes in the master card being sensed by points 136 formed on arms 43 pivoted on the interposers 41. Upon pressing the start button, the rotation of the cam 168 causes a tray 46 having holes 46a to be lowered on to the master card and, upon the interposers being released by the bar 152, the points 136 engage with any particular hole in the master card thus retaining the projection 45 on the interposer over the corresponding punch. In an alternative construction, Figs. 18 and 19, the die, punch and interposer arrangement is used in a time recorder machine wherein four sets of rotatably mounted cams 320, 322, 327 and 328 are used to control the interposers instead of the master card and levers 33 of the previous embodiment; the cams are driven through gears having such ratios that the positioning of the cams correspond to tens, units, tenths and hundredths of an hour, respectively. The first gear 347 in the train is driven by a synchronous electric motor (340, Fig. 17) which rotates a shaft 341, having a cam 342 actuating a pawl-and-ratchet mechanism 343, 411, 412, 344 connected to the gear 347. The interposers associated with the cams 320, 327 and 328 are in the form of pivoted levers 330, 471 and 332, respectively connected to the punches 381. In operation, when a card is inserted into a slot 316 a switch is actuated causing a solenoid 336 to allow pilot pins 428 to drop into pre-formed holes in the card and so close a circuit for a solenoid 335, the latter then raising the die 398 via links 407, 399.