Patent GB-1136538-A (GB)
Title: Control device for use in processing record media
IPC: G06K1/02
Filed: 1967-10-05
Abstract: 1,136,538. Selective punching apparatus. NATIONAL CASH REGISTER CO. 5 Oct., 1967 [31 Oct., 1966], No. 45369/67. Heading B4B. Selective punching apparatus comprises a continuously rotating drive-shaft 53, Fig. 4, having projections 82 for driving a punch pin 85 by means of rockable interposer 80, a pivotally mounted spring-influenced arm 75 controlled by a solenoid 74, and a pivotally-mounted spring-influenced restoring arm 76, the arrangement being such that on de-energization of the solenoid 74, the arm 75 rocks counterclockwise and permits the arm 76 to rock clockwise to rock the interposer counterclockwise into operative position in which the pin 85 is driven downwardly to punch a record card supported by a die 38, downward movement of the interposer rocking the arm 36 counterclockwise thereby restoring the arm 75 to its original position. A projection 82 on a continuously rotating restoring shaft 56 engages a portion of the pin 85 thereby driving the pin and interposer upward to their original position. The record card is fed stepwise by mechanism comprising a ratchet wheel 130, Fig. 7, engaged by a detent blade 138, a rockable member 140 for disabling the blade, and a slidable spring- influenced pin 142 one end of which engages the member 140 and the other end of which is engaged by a rockable interposer 151 the movement of which is controlled by a pivotallymounted spring-influenced arm 147 controlled by a solenoid 146, and a pivotally-mounted spring-influenced restoring arm 150, the arrangement being such that when the solenoid 146 is de-energized, the arm 147 rocks and permits the arm 150 to rock thereby rocking the interposer into its operative position where it is engaged by a projection 246 on a continuously rotating drive shaft 46 to cause the pin 142 to be moved to disable the blade 138, a projection 243 on a continuously-rotating restoring shaft 43 causing the pin 142 to be moved to its original position and the arm 150 to be restored thereby restoring the arm 147 to its original position. The wheel 130 is secured to a shaft 36 urged for rotation under the influence of a torsion spring 35, Fig. 1A, maintained at a constant driving torque by a slip clutch 30 one member of which is constantly driven by an electric motor (22), Fig. 1B (not shown). The apparatus also comprises driving rollers 108, Fig. 5, for the record card, rockably-mounted idler rollers 101 co-operating with the rollers 108 to cause stepwise feed of the card, and rookable control arms 110 each forming the armature of card feed solenoids 111, each arm 110 cooperating with a cam 113 on the restoring shaft 56 such that the arm 110 is actuated by the cam following a final punching operation on the record card, to cause the rollers 101 to be removed from engagement with the rollers 108 and to be retained in such position if the solen - oids 111 are energized, to permit insertion of a new record card between the rollers 101 and 108. The control pulses for the solenoids 74, 111 and 146 are generated by timing cams 62, Fig. 1A, on the drive-shaft 53 which are engageable with the tips 64 of magnetic pickups 65.