Scanning shutter blade arrangement with inertial wheel

Details Scanning shutter blade arrangement with inertial wheel Scanning shutter blade arrangement with inertial wheel

1979-02-07

1980-01-22

Hix, L. T.

354256, G03B 908, G03B 958

Patent

active

041847601

ABSTRACT:
In a photographic camera apparatus, there is provided an exposure control system of the type embodying "scanning" shutter blade elements in which the opening shutter blade movement is slowed by way of an inertial wheel which is rotated in concert with the shutter blade mounting member or walking beam. During the closing movement of the shutter blade elements, the walking beam disengages from the inertial wheel to facilitate a fast shutter blade closing movement substantially unrestricted by the inertial wheel.

REFERENCES:
patent: 3187655 (1965-06-01), Kiper
patent: 3645185 (1972-02-01), Kitai
patent: 3772392 (1973-03-01), Kitai
patent: 3856393 (1974-12-01), Ogihara et al.
patent: 3873987 (1975-03-01), Brauning et al.
patent: 3942183 (1976-03-01), Whiteside
patent: 3969738 (1976-07-01), Johnson et al.
patent: 3969739 (1976-07-01), Johnson et al.
patent: 4047192 (1977-09-01), Johnson et al.

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