Registers – Calculators – Input-output calculator to indicator – printer – etc.
Patent
1975-03-31
1976-07-20
Konick, Bernard
Registers
Calculators
Input-output calculator to indicator, printer, etc.
G06K 704
Patent
active
039708268
ABSTRACT:
A card reader head that includes a plurality of spring biased sensing fingers adapted to sense the code on an embossed card. The code sensing fingers are slidable in a path parallel to the entry path of the embossed card between a rest or home position defined by limit stops and an active position defined by the embossments on the card in response to insertion thereof. The sensing fingers are also pivotable into and out of the card insertion path. A spring biased card sensing carriage provides a pair of rotatable wheels adapted to sense the presence of a card within the passageway, the wheels being positioned within the passageway rearward of the home position of the sensing fingers. A finger restrainer bar is fixed to the carriage, and same cooperates with the sensing fingers to pivot the fingers out of the passageway when the carriage is at the rest position. Upon insertion of the card into the reader head, same first contacts the wheels on the carriage and cams them out of the passageway; this, in turn, removes the carriage's restrainer bar from stop contact with the sensing fingers, and allows the sensing fingers' springs to bias same into contact with the embossed card. Since the sensing fingers are located forward of the carriage's wheels, the leading edge of the card passes over the fingers prior to contacting the wheels, thereby insuring that the fingers do not get hung up on the leading edge of the card as it is inserted. One or more of the fingers engages the code embossments provided on the card to slide the engaged fingers rearward of the restrainer bar to an active finger position against the bias of the sensing fingers' springs as the card is inserted into the passageway. Switches partially carried by each of the sensing fingers are connected, through a card reader circuit integrated with the card reader head, to a readout terminal adapted to sense the validity of the card presented to the reader head structure.
The card reader circuit integrated with the reader head structure includes at least one card compatibility network adapted to determine, at the reader itself, whether or not the card is compatible with the reader head based upon compatibility indicia carried by the card. The circuit also includes a digit readout network cooperable with fixed and movable contacts to read identifying indicia on the card and provide identifying signals at the readout terminal, providing the card is coded such that same is compatible with the reader head.
REFERENCES:
patent: 2781973 (1957-02-01), Baer
patent: 3304411 (1967-02-01), Blodgett
patent: 3573434 (1971-04-01), Wallace
patent: 3714398 (1973-01-01), Brock
patent: 3796861 (1974-03-01), Hirata
Kleimeyer Vermon T.
Schinner Thomas J.
General Signal Corporation
Konick Bernard
Lucas Jay P.
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