Method and apparatus for microfilming documents of varied length

Details Method and apparatus for microfilming documents of varied length Method and apparatus for microfilming documents of varied length

1981-11-27

1983-10-11

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Producing plural rows of pictures on photosensitive paper

355 64, G03B 2744

Patent

active

044088760

ABSTRACT:
The invention concerns a process for "flow microfilming", particularly using 16mm film, where the film starts being fed synchronously with the feeding of a document to be filmed, moves forward in synchronism with the document and stops after the microfilming of the document is over. According to the invention, the stopping of the film after the document has been microfilmed is done such that the length of the film utilized each time for a given document is equal to a whole multiple of a standard minimum length, whereby the film may be automatically indexed for viewing regardless of the actual length of any given document.

REFERENCES:
patent: 3136463 (1964-06-01), Froese
patent: 3649121 (1972-03-01), Cohen
patent: 4197004 (1980-04-01), Hurlbut

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