Drive control mechanism for motion picture projector

Details Drive control mechanism for motion picture projector Drive control mechanism for motion picture projector

1975-03-13

1976-04-27

Christian, Leonard D.

Winding, tensioning, or guiding

Reeling device

Fishing rod reel

352124, 352177, G03B 104, G11B 1532

Patent

active

039529690

ABSTRACT:
For a motion picture projector, a mode controller is coupled through control members to a dual clutch assembly to selectively transmitted drive as required from a unidirectional input to supply and take-up devices. Particularly, the mode controller is a manually operable mode selector for adjusting a control rod carrying dual control cams to selectively actuate respective supply and take-up drive transmitting clutches to free, slip, and positive drive conditions, as well as to actuate other projector components. Responsive to conditioning of the clutches, and projector components such as shuttle retractor and other control mechanisms, the projector is changed from one mode of operation to another.

REFERENCES:
patent: 3240550 (1966-03-01), Mitchell
patent: 3643894 (1972-02-01), Kadowaki
patent: 3707326 (1972-12-01), Kadowaki
patent: 3857633 (1974-12-01), Easterly et al.

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