Exposure aperture frame construction for camera

Details Exposure aperture frame construction for camera Exposure aperture frame construction for camera

1983-09-29

1985-07-23

Mathews, A. A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354212, 242 711, G03B 148, G03B 1904

Patent

active

045305820

ABSTRACT:
An exposure aperture frame defining an exposure aperture includes at least a pivotable partition member with an inclined guide surface on the inner wall thereof which is pivoted by and thereby permits advancement of a film leader to a film take-up chamber so that the film leader can reach a film take-up chamber without any standstill within the exposure aperture frame. The inclined guide surface permits the forward end of the film leader to ride across the partition member. A spring urges the partition member toward a position in which it encloses the exposure aperture frame. That spring also releasably retains the partition member on a shaft on which it is pivoted. The partition member has a platform member extending toward the take-up chamber, which has an opening therethrough that provides access to the spring.

REFERENCES:
patent: 3383068 (1968-05-01), Winkler et al.
patent: 3463071 (1969-08-01), Winkler et al.

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