Motion picture projection apparatus

Details Motion picture projection apparatus Motion picture projection apparatus

1975-10-22

1978-03-07

Hix, L. T.

Optics: motion pictures

Removable film strip magazine type

Spool or magazine selective

352198, G03B 2302

Patent

active

040777057

ABSTRACT:
A motion picture projection apparatus capable of selective use of two types of films with an open reel assembly and a film cartridge having mounted therein a pressure plate associated with a reflecting mirror. The apparatus is provided with a displaceable member carrying a pressure plate associated with a light reflecting element for use with a film strip fed from the open reel assembly. The displaceable member is arranged in the projection station of the apparatus to be displaced to a projection position where the film of open reel type is in alignment with the optical axis of the projection system and to an idle position where the film of open reel type is out of alignment with the projection system in automatic response to a removal and an insertion, respectively, of the film cartridge from and into the projection position. This is a continuation of application Ser. No. 472,416 filed May 22, 1974, now abandoned.

REFERENCES:
patent: 3139789 (1964-07-01), Schrader
patent: 3300270 (1967-01-01), Finnerty
patent: 3574453 (1971-04-01), Hara
patent: 3586427 (1971-06-01), Kakiuchi

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