Releasable attachment for connecting a film strip to a film cass

Details Releasable attachment for connecting a film strip to a film cass Releasable attachment for connecting a film strip to a film cass

1995-08-21

1997-06-03

Darling, John P.

Winding, tensioning, or guiding

Coil holder or support

With material end retainer

2423481, B65H 7528

Patent

active

056346093

ABSTRACT:
Film cassettes normally include a spool on to which a film strip is wound. However, the film strip is normally fixed to the spool and needs to be severed therefrom prior to processing. A releasable attachment connects a film strip (50) to a spool (30). The spool (30) comprises an outer portion (32) and an inner portion (34) which is rotatable relative to the outer portion (32). The outer portion (32) has a slot (38) formed therein into which the film strip (50) is inserted. The inner portion (34) carries a tongue member (42) which engages an aperture (54) formed in the film strip (50) as the inner portion (34) is rotated relative to the outer portion (32) about an axis (36). The film strip (50) is released by rotating the inner portion (34) in the reverse direction.

REFERENCES:
patent: 2487479 (1949-11-01), Roehrl
patent: 3586258 (1971-06-01), Horlezeder
patent: 3650389 (1972-03-01), Mook
patent: 3705696 (1972-12-01), Edwards
patent: 4334750 (1982-06-01), Fichter
patent: 4338015 (1982-07-01), Holmes
patent: 4808229 (1989-02-01), Arhelger
patent: 4834310 (1989-05-01), Ikariya et al.
patent: 4955555 (1990-09-01), Pierson et al.
patent: 5054710 (1991-10-01), Ikariya et al.

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