Microfiche reader

Details Microfiche reader Microfiche reader

1976-06-28

1978-10-17

Stephan, Steven L.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

G03B 2308

Patent

active

041205731

ABSTRACT:
A microfiche reader stores a library file of microfiche in a cartridge which may be inserted into the reader, so that it is not necessary to manually manipulate the individual microfiche. The reader automatically extracts and feeds a selected microfiche from a cartridge and then returns it to the vacated cartridge location. A right angle rack and pinion causes the extractor mechanism to provide an automatic feed mechanism which moves over a horizontal advance, raise, drop and back path so that hooks may be removed from and then returned into notches in a microfiche carrier, without damaging them. An automatic elevator mechanism positions the cartridge so that any selected microfiche may be placed on display.

REFERENCES:
patent: 3071753 (1963-01-01), Fritze et al.
patent: 3528735 (1970-09-01), Bluitt et al.
patent: 3720464 (1973-03-01), Ditscheid
patent: 3743400 (1973-07-01), Haning et al.
patent: 3797925 (1974-03-01), Smitzer

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