Mechanism for preventing unintended rotation of reels of film st

Details Mechanism for preventing unintended rotation of reels of film st Mechanism for preventing unintended rotation of reels of film st

1989-01-26

1990-06-19

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 7500, G03B 104

Patent

active

049346237

ABSTRACT:
A transfer printing film storage cassette comprises a cassette case, a feed reel for feeding a printing film, and a take-up reel for winding the film, both the reels being accommodated in the cassette case. The transfer printing film storage cassette is equipped with a reel rotation preventing mechanism including an elongated flat plate. The rotation preventing plate is formed with inserting protrusions each of which is removably inserted into hollow engaging portion at one end of each reel and with a pair of lateral projections disposed between the inserting protrusions and adapted to be snappingly inserted into an opening formed in an end wall of the cassette case on its operating side.

REFERENCES:
patent: 2051206 (1936-08-01), Fairbanks
patent: 2161341 (1939-06-01), Fairbanks
patent: 3272304 (1966-09-01), Morelli
patent: 3380581 (1968-04-01), Landgraf
patent: 3747745 (1973-07-01), Esahi et al.
patent: 4067629 (1978-01-01), Amatsu et al.
patent: 4210296 (1980-07-01), Frechette
patent: 4304331 (1981-12-01), Minkow

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