Shutter dial device for camera

Details Shutter dial device for camera Shutter dial device for camera

1977-11-15

1979-11-06

Hartary, Joseph W.

Signals and indicators

Navigation devices

116213, G03B 1718, G01D 1300

Patent

active

041734041

ABSTRACT:
In a shutter dial device for camera having a shutter dial having a plurality of apertures for manual setting which are equal in diameter and formed on a circle centered at the rotary shaft of the shutter dial and a steel ball biased so as to be urged into each of the apertures, the apertures and the steel ball together constituting a click stop mechanism for manually setting the shutter speed, there is formed on the circle of the shutter dial an aperture for automatic setting having a diameter equal to or larger than the diameter of the steel ball, and a release member is provided on the shutter dial for stopping the steel ball in a position where the half or more of the steel ball drops into the aperture for automatic setting and for forcing back the steel ball out of the aperture for automatic setting by the manual operation.

REFERENCES:
patent: 2090390 (1937-08-01), Kuppenbender
patent: 3185064 (1965-05-01), Armbruster et al.
patent: 3956762 (1976-05-01), Miyamoto
patent: 3964082 (1976-06-01), Mita

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