Optics: image projectors – With sound accompaniment
Patent
1976-01-09
1977-08-23
Stephan, Steven L.
Optics: image projectors
With sound accompaniment
352 72, 353 95, 353DIG2, 360 80, G03B 3100, G03B 148, G03B 2302, G11B 3100
Patent
active
040436500
ABSTRACT:
An improved film handling device or film cartridge designed for permanent mounting on a film strip projector or the like. The device or cartridge includes a base plate pivotally mounted to a sliding carriage and a storage cavity on the top of the base plate. The carriage comprises a tape cassette player and the base plate includes at least a pair of depending arms for slideably mounting a tape cassette. A drive sprocket is mounted on the base plate for engaging and feeding the film through a film gate in the projector. The carriage is movable between a generally forward, film loading position whereat the base plate is pivoted upwardly for easy access and a generally rearward, film feed position which permits the film to be transferred through the film gate. A safety interlock is provided on the cassette to prevent jamming of the film as the carriage is moved between its respective positions.
REFERENCES:
patent: 2067835 (1937-01-01), Erwood
patent: 3033077 (1962-05-01), Schwartz et al.
patent: 3420464 (1969-01-01), Ruditis et al.
patent: 3675994 (1972-07-01), Badalich et al.
patent: 3679298 (1972-07-01), Knowles et al.
patent: 3914037 (1975-10-01), Peters
Bell & Howell Company
Fitz-Gerald Roger M.
Hoffman John R.
Schneider Robert J.
Stephan Steven L.
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