Film end indicating device for motion picture cameras

Details Film end indicating device for motion picture cameras Film end indicating device for motion picture cameras

1977-05-12

1979-01-02

Hayes, Monroe H.

Optics: motion pictures

Camera and/or projector drive mechanisms

With indicating means

352175, 352 91R, G03B 160

Patent

active

041324676

ABSTRACT:
In a motion picture camera in which films of different length can be loaded, a film end indicating device is provided to indicate that the film has come to its end regardless of its length. The film end indicating device is comprised of an indicator and a plurality of end detectors attached to a footage counter in the camera to detect the end of the film of different length respectively. A change-over lever is provided between the indicator and the plurality of end detectors to selectively connect one of the detectors to the indicator according to the length of the film.

REFERENCES:
patent: 2450323 (1948-09-01), Williamson
patent: 3027800 (1962-04-01), Leuschke
patent: 3494691 (1970-02-01), Katsuyama
patent: 3515473 (1970-06-01), Theer
patent: 3549249 (1970-12-01), Katsuyama
patent: 3656842 (1972-04-01), Theer et al.
patent: 3701593 (1972-10-01), Nozawa
patent: 3782813 (1974-01-01), Isono
patent: 3918802 (1975-11-01), Sakaguchi
patent: 4030820 (1977-06-01), Nishizawa

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