Endless film cartridge and pressure support plate therefor

Details Endless film cartridge and pressure support plate therefor Endless film cartridge and pressure support plate therefor

1984-10-09

1986-09-23

Hayes, Monroe H.

Optics: motion pictures

Removable film strip magazine type

Magazines

352 72, G03B 2302

Patent

active

046132201

ABSTRACT:
A film cartridge is provided to hold an endless film strip for storage and display. The cartridge includes a pressure support plate to hold the film in a focus plane for projection, which plate is a resilient, generally ellipsoidal loop with a front projection opening and means for securing the loop to the cartridge in a position to resiliently and uniformly press against the perimeter of the front opening in the cartridge to thereby guide and control motion of the film strip.

REFERENCES:
patent: 3206757 (1965-09-01), Schrader
patent: 3244471 (1966-04-01), Mead
patent: 3271096 (1966-09-01), Blackmore

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