Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent
1980-04-02
1981-11-24
Shepperd, John W.
Optics: image projectors
Selective data retrieval
Plural picture rows on single microcard
353 25, 353DIG5, G03B 2308
Patent
active
043020828
ABSTRACT:
Disclosed is a device for the insertion of microfiche cards into a microfiche reader comprising a plurality of microfiche cards, each card having an image aperture part and a blank part with a perforation in one of the two corner areas of the blank part, a magazine containing a plurality of microfiche cards, the magazine being equipped at a location corresponding to the perforation of the microfiche card with a shaft, releasable from the magazine, the shaft extending through the perforations in the microfiche cards as a holder and a rotational axis for movement of the microfiche cards, and being open on a first lateral surface adjacent the shaft and on a second lateral surface perpendicular to the first lateral surface and facing away from the shaft, a film stage and magazine stage arrangement adapted for receiving the magazine wherein the magazine is positioned on the magazine stage such that the first open lateral surface of the magazine is pointing toward the film stage and the distance between the shaft and the rear edge of the film being equal to the length of the microfiche card measured between the perforation of the card and the outer edge of the image aperture part.
REFERENCES:
patent: 3438703 (1969-04-01), Winnemann
patent: 3476474 (1969-11-01), Nerwin
patent: 3566524 (1971-03-01), Irasek
patent: 3640613 (1972-02-01), Kitch
patent: 3690753 (1972-09-01), Dahl
patent: 3778143 (1973-12-01), Treher
Jopp Rudolf
Shepperd John W.
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