Cinematic equipment shutter selector mechanism

Details Cinematic equipment shutter selector mechanism Cinematic equipment shutter selector mechanism

1974-02-04

1977-06-21

Hix, L. T.

Optics: motion pictures

With plural picture sizes and types

352221, G03B 4100

Patent

active

040308197

ABSTRACT:
The aperture selector mechanism for dual film projectors provides a change-over lever deplaceable between a upper (unlocked) and a depressed (locked) position, resilient means biasing the said lever in the upper (unlocked) position, first deplaceable means cooperable with the change-over lever to releasable lock the lever in the depressed, (locked) position and to release the lever when a super-8 film spool intermediale hub is cooperatively received in the drive spindle of the dual film projector and second deplaceable means preventing the standard 8 film spool intermediale hub to be cooperatively received in the said drive spindle of the dual film projector when the lever is in the upper (unlocked) position.

REFERENCES:
patent: 3395965 (1968-08-01), Teshi et al.
patent: 3439980 (1969-04-01), Teshi et al.
patent: 3482909 (1969-12-01), Becker
patent: 3537106 (1970-10-01), Pickens et al.
patent: 3667837 (1972-06-01), Agrati et al.
patent: 3811759 (1974-05-01), Johnson

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