Automatic microfilm camera

Details Automatic microfilm camera Automatic microfilm camera

1977-08-03

1979-04-10

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 77, 242198, 226 76, 226101, 355 64, 271 9, 355 75, G03B 2752, B65H 104, B65H 526, G11B 2304

Patent

active

041485793

ABSTRACT:
An automatic microfilm camera is electronically controlled, as by an electronic logic controller, logic and control unit, or the like, for example. The camera has an automatic feeding stack loader for picking up documents of randomly mixed sizes, photographing them, and then depositing them in an output tray. The automatic feed may be interrupted, so that single documents may be copied. Then, the automatic feed restarts and continues from the point of interrupt. A plurality of sensors respond to documents in order to control both the time of shutter opening and the exposure actuation. Various forms of documents may be processed, including a fan-folded computer readout requiring a pin drive wheel.

REFERENCES:
patent: 2552220 (1951-05-01), Schubert et al.
patent: 3750553 (1973-08-01), Pfeifer et al.
patent: 3836250 (1974-09-01), Bookless et al.
patent: 3861799 (1975-01-01), Chiswell et al.
patent: 3922084 (1975-11-01), Burton et al.
patent: 3981582 (1976-09-01), Bookless
patent: 4042298 (1977-08-01), Herrmann

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