Self timer device for motion picture camera

Details Self timer device for motion picture camera Self timer device for motion picture camera

1976-03-05

1977-11-08

Hayes, Monroe H.

Optics: motion pictures

Camera and/or projector drive mechanisms

With starting and/or stopping means

242208, G03B 100

Patent

active

040573346

ABSTRACT:
The present invention relates to a self-timer device for a motion picture camera which presents a second motor switch connected in series with the first motor switch to be closed by means of the release means at the time of the camera release, the first timer means including a governer mechanism for actually starting photographing, closing the second motor switch after the elapse of a certain determined time from the automatic photographing setting and the second timer means for stopping the camera release after the elapse of a certain determined time from the actual starting of photographing, so as to open the first motor switch and terminate the photographing. In this manner the first timer means is driven by means of a spring means as a driving source while the second timer means is driven by means of the camera driving motor as driving source and controls the timing of the start and stop of the photographing at the time of the automatic photographing.

REFERENCES:
patent: 3027800 (1962-04-01), Leuschke
patent: 3056334 (1962-10-01), Christensen
patent: 3238008 (1966-01-01), Krumbein

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