Photographic apparatus for using roll films

Details Photographic apparatus for using roll films Photographic apparatus for using roll films

1981-05-20

1982-07-20

Griffin, Donald A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 711, G03B 1726, G03B 104

Patent

active

043402925

ABSTRACT:
A roll film cassette facilitating the loading of film in ordinary light conditions without risk of exposure comprises a housing, a window adjacent one end of the housing, a film supply spool for unexposed film and a take-up spool for exposed film at the window end of the housing, and a reversing roller at the opposite end of the housing. The two spools are incorporated into a common spool-holder unit bodily attachable in and removable from the housing. The parts of the spool-holder unit for mounting the supply spool include a light-tight sleeve with an opening for the insertion and removal of the spool. The opening has a hinged door-like lid and an axial slot for the accommodation of a leader portion of the film.

REFERENCES:
patent: 461306 (1891-10-01), Blair
patent: 1036385 (1912-08-01), Vale
patent: 1213694 (1917-01-01), Schultz
patent: 2669155 (1954-02-01), Brow
patent: 3548728 (1970-12-01), Ariyasu et al.
patent: 3666361 (1972-05-01), Pankow et al.
patent: 3918075 (1975-11-01), Horn et al.
patent: 4219266 (1980-08-01), Carter

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