Microfilm copyboard with document index

Details Microfilm copyboard with document index Microfilm copyboard with document index

1975-09-30

1976-09-21

Hartary, Joseph W.

Photocopying

Projection printing and copying cameras

Detailed holder for original

354105, 355 39, G03B 2762

Patent

active

039815820

ABSTRACT:
A copyboard (especially -- although not exclusively -- for microfilm cameras) has a movable document guide which slides diagonally. A counter is mounted on the document guide to display a frame identifying number, which appears adjacent the image in each frame. Since the counter is mounted on the document guide, the number which it displays always appears along side the photographic image, regardless of the original document size. A blip image is also placed on the copyboard to provide a white spot that facilitates automatic searching. When a special operation is performed, the blip image is made longer in order to provide a command signal.

REFERENCES:
patent: 1743310 (1930-01-01), Beidler
patent: 3710696 (1973-01-01), Tucker et al.

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