Motor drive device for long-footage film

Details Motor drive device for long-footage film Motor drive device for long-footage film

1978-01-16

1979-11-13

Gellner, Michael L.

G03B 118

Patent

active

041741668

ABSTRACT:
In a motor drive device for long-footage film having a first motor for effecting shutter release and for driving a constant-amount film feeding sprocket and a second motor for starting to drive to effect take-up of the film onto a spool upon starting of movement of the sprocket, there is provided a timing circuit for generating a shutter release signal which drives the first motor to effect shutter release immediately after the complete stoppage of the second motor and which effects film take-up immediately after completion of the shutter release. The timing circuit repetitively generates such a shutter release signal at a time interval from the shutter release to the complete stoppage of the second motor.

REFERENCES:
patent: 3898679 (1975-08-01), Ogiso et al.
patent: 3927413 (1975-12-01), Kimura et al.

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