Selection for microfiche cartridge

Details Selection for microfiche cartridge Selection for microfiche cartridge

1974-12-16

1976-12-14

Haroian, Harry N.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

353103, G03B 2308

Patent

active

039972577

ABSTRACT:
A library file of microfiche film comprises a plurality of spaced parallel film stored inside a cartridge. In a microfiche reader, a reciprocally moving extractor moves into and out of the cartridge to extract and return microfiche. An elevator selectively raises or lowers the cartridge relative to the extractor, thereby selecting a particular microfiche. Suitable interlocks prevent the elevator from moving after a microfiche is extracted and before it is returned to the cartridge.

REFERENCES:
patent: 3528735 (1970-09-01), Bluitt
patent: 3720464 (1973-03-01), Ditscherd
patent: 3754817 (1973-08-01), Iida

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