Patent GB-1063367-A (GB)
Title: Improvements in or relating to card selection apparatus
IPC: G06K17/00
Filed: 1964-03-26
Abstract: 1,063,367. Filing papers. MOSLER SAFE CO. March 26, 1964 [May 9, 1963], No. 13051/64. Heading B6E. [Also in Division G4]. General.-Edge notched cards are stored in pockets mounted on the periphery of a drum, the drum is rotatable to position a selected pocket at a card selection station, selector bars at this station are operated to prevent all but a desired card from being ejected by an air jet, the ejected card is transported to a viewing station, and may later be returned to the front of the pocket from which it was removed. Cards.-The cards are notched in a conventional manner for selection and may include a film insert, though information may also be recorded on the card magnetically, or by perforations, or by printing. Storage drum and pocket selection.-Fifty pockets 12 are located round drum 13, and one of the pockets is selected by operating an appropriate pair of push buttons corresponding to the tens and units digits of the pocket identity. A pair of commutators are coupled to the drum shaft and are arranged so that when a search button is operated, the drum 13 is driven by the shortest route to position the desired pocket beneath card selection station 14. Motor 103 rotates the drum 13 by means of a pair of belts 81 which also serve to prevent the cards from falling out of the pockets in the lower half of the drum. Owing to the inertia of the system, the drum coasts past the desired position after the supply to motor 103 is cut off by the commutators, and motor 103 is then driven at a slow speed in the reverse direction until the selected pocket is correctly aligned with the station 14. Card selection.-A further pair of push buttons identifying the desired card are operated, and card selection proceeds as follows. A known type of selector mechanism is used in which a plurality of selector bars are advanced across the top of the pocket, and a pair of solenoid-operated pins corresponding to the operated push buttons latch the associated selector bars in the advanced position, while the remaining bars are spring returned to the inoperative position. A rocker assembly 104, driven by a cam from a scanning motor, then causes drum 13 to traverse the selected pocket across an air jet 15, the jet also being pivoted in the opposite direction to maintain it directly below the bottom edge of the card which is momentarily aligned with an exit aperture. The rocking operation is repeated to and fro until the desired card is ejected and is gripped in the nip of a pair of rollers in transport mechanism 17, or until a timing device operates to signal that the card called for is missing. When the card is ejected it operates a switch associated with the feed rollers to stop the scanning motor. A second switch shuts off jet 15, the operative selector bars are allowed to return, and the card is fully withdrawn from the pocket by the rollers, two further air jets preventing other cards from sticking to the ejected card. The card is driven upwards until it reaches a viewing station at which the film insert or other information may be optically projected or viewed remotely through a television system. Card return.-Drum 13 is automatically rocked to position one side of the selected pocket below the exit channel when the card has been ejected, a pair of fingers are inserted through apertures 50 on each side of the drum, and the drum is again rocked so that the inserted fingers compress the cards in the pocket and leave a gap into which the card when returned by mechanism 17, may be inserted. The entry of the card into the pocket causes the fingers to be withdrawn, and the system is reset ready for another card selection operation. Card loading and removal.-The card transport system 17 is movable to enable a stack of cards to be placed in or removed from a pocket positioned at station 14. Single cards may be inserted or removed by pivoting a card stop at the top of mechanism 17 out of the way. An abutment member placed in a different position in the bottom of each pocket prevents insertion of a card into the wrong pocket. Several drums 13 may be mounted on a common shaft.