Self-developing motion picture viewer having controlled film...

Details Self-developing motion picture viewer having controlled film... Self-developing motion picture viewer having controlled film...

G - Physics

03

B

95/6

G03B 1/00 (2006.01) G03B 17/26 (2006.01) G03B 21/10 (2006.01) G03C 5/00 (2006.01)

Patent

CA 1098356

5755 ABSTRACT OF THE DISCLOSURE A programmable viewing system for processing and viewing cassette contained photographic film strips, in which the film is driven through forward and rewind advancement for film development operations and then automatically projected and again rewound, includes an electronic switching arrangement for de-energizing the system drive motor at the termination of the development rewind to prevent cinching or stressing of the film strip on the spool while developing fluid reacts with the exposed emulsion. Then the motor is automatically turned on again after completion of the fluid reaction period.

301315

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