Spool for photographic film

Details Spool for photographic film Spool for photographic film

1981-07-13

1982-10-05

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 74, B65H 7518, B65H 7528

Patent

active

043524699

ABSTRACT:
Spools comprising a core or hub and two flanges concentric with the core or hub which are used to carry either unexposed photographic film for use in a camera, imaged film prior to development, or developed film for use in a viewer have different constructions in the field of microfilm because of different functional requirements for the spools. Because of the expense of shipping and inconvenience of reuse of the spool for unexposed film, the spool is generally discarded. By putting a fracturable or removable line from the outermost edge of one flange to the core, the spool for unexposed film may be converted to a spool for developed film.

REFERENCES:
patent: 2180829 (1939-11-01), Kolmodin
patent: 3161370 (1964-12-01), Schwartz
patent: 3395872 (1968-08-01), Faftori
patent: 3648944 (1972-03-01), Fujiwara

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