Structure of a film holder

Details Structure of a film holder Structure of a film holder

1991-08-01

1992-07-07

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for original

G03B 2762, G03B 2764

Patent

active

051287145

ABSTRACT:
The structure of a film holder used for an image transmitter or the like for directly transmitting a filmed image comprises a base plate, a film receiving plate having film positioning projections and a film window, which is arranged rotatively within the surface of the base plate, a clip plate arranged in the opposite side of the film receiving plate against the base plate, a pressure plate having a film window and in cooperation with the film receiving plate, holding the film therebetween, a pivotally supporting member to support the pressure plate pivotally against the film receiving plate to allow the pressure plate to be opened or closed freely with respect to the film receiving plate, and a spring to provide a rotational peculiarity for the pressure plate in the closing direction to cause the pressure plate to be in contact with the film receiving plate under pressure.

REFERENCES:
patent: 1600709 (1926-09-01), Bhosys
patent: 2995979 (1961-08-01), Gordon et al.
patent: 3132560 (1964-05-01), Pignone et al.
patent: 3511565 (1970-05-01), Harmon, Jr. et al.
patent: 4396282 (1983-08-01), Anderson
patent: 4736228 (1988-04-01), Ito
patent: 4774553 (1988-09-01), Blanding et al.

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