Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1986-12-01
1989-07-04
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
352128, B65H 1748
Patent
active
048443670
ABSTRACT:
An apparatus and method for continuously storing a strip of material in a coil, such as a multi-hour motion picture theatre film. The apparatus includes a flat platter with drive means for rotating the platter, a cam mounted for rotation with the platter and having a cam track with alternating sections of greater distance and lesser distance from the center of the platter, and means for applying the incoming strip to the periphery of the coil on the platter. The applying means includes a cam follower for engaging the cam track to position the strip in a coil on the platter having inwardly directed rounded cusps with arcuate outer peripheries therebetween. In order to produce or eliminate tension in the strip, a fixed roller is positioned at the arcuate outer periphery for urging the coil inward as the roller contacts the arcuate periphery. Further improvements include provision of a friction surface on the platter for enhancing cusp formation, and a takeoff roller assembly positioned above the platter for improved strip takeoff operation.
REFERENCES:
patent: 2037601 (1936-04-01), Shirlow et al.
patent: 3484051 (1969-12-01), Feinberg
patent: 3863852 (1975-02-01), Rackett et al.
patent: 4186891 (1980-02-01), Johnson
patent: 4208018 (1980-06-01), Wilkinson
patent: 4448362 (1984-05-01), Johnson
patent: 4504025 (1985-03-01), Potts
Christie Electric Corporation
Levy Stuart S.
Matecki Katherine
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