Film winding spool for photographic camera

Details Film winding spool for photographic camera Film winding spool for photographic camera

1982-05-10

1984-05-29

Petrakes, John

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 74, G03B 104, B65H 7528

Patent

active

044510110

ABSTRACT:
A film winding spool for a photographic camera has an inner cylindrical member driven in rotation and provided with engaging formations for engaging an initial portion of the film, and an outer cylindrical member surrounding the inner member so as to form a space therebetween and having a slot for introducing the initial portion of a film into this space and an outer surface for winding successive coils of the film, wherein the outer member has at least one opening arranged so that a piece of the film separated from a remaining part of the film can be withdrawn from the space between the inner and outer members through the opening.

REFERENCES:
patent: 2487479 (1949-11-01), Roehrl
patent: 2690883 (1954-10-01), Barker et al.
patent: 3383068 (1968-05-01), Winkler et al.
patent: 3567147 (1971-03-01), Engelsmann et al.
patent: 3885750 (1975-05-01), Ikeuchi
patent: 4274726 (1981-06-01), Yoneyama et al.

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