Ultra-high reduction microfiche layout and positioning mechanism

Details Ultra-high reduction microfiche layout and positioning mechanism Ultra-high reduction microfiche layout and positioning mechanism

1974-11-21

1976-06-08

Aegerter, Richard E.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

G03B 2308, G03B 2111

Patent

active

039618463

ABSTRACT:
A layout page organization for ultra-high reduction microfiche is provided that presents image pages of standard book size in a 100 page format with up to 400 pages being carried on the film insert of conventional aperture cards. The image pages of the 100 page format are organized in horizontal rows and vertical columns. A selector mechanism having a base or zero position return feature uses fixed position cam index pins and follower plates that are mounted for two dimensional freedom of movement to mechanically select and locate any desired page image of a selected 100 page format or to serially move to successive page images. A zero or base position adjustment is provided to compensate for minor discrepancies in the mounting position for the film insert. In a 400 page configuration quadrant positioning of the basic 100 page format on the film insert is used, and quadrant selection is additionally incorporated in the selector mechanism.

REFERENCES:
patent: 3442586 (1969-05-01), Coil
patent: 3743400 (1973-07-01), Hamimg

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