Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1980-09-02
1983-09-13
Taylor, Billy S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
352128, G03B 2100, G11B 2306
Patent
active
044037465
ABSTRACT:
A continuous loop film projecting apparatus whereby film from a projector is received on a platter having pneumatic or mechanical means to decrease the friction on the film as a result of the film rubbing against the platter surface. A blower located beneath the platter forces air through a series of holes or jets in the platter, lifting the edge of the film enough off the platter to decrease the tension on the film and help prevent the film from breaking. Instead of forcing air through holes in the platter to lift the film, the platter may have slots extending almost the width of the platter with blades attached to the bottom of the platter underneath the slots, the blades projecting through the slots as a roller on the blade contacts a camming surface. The same results are achieved with the blade/cam combination, or mechanical means, as with the forced air, or pneumatic means, namely the film is momentarily lifted off the platter thereby reducing the friction on the film and decreasing the possibilities of the film breaking or becoming damaged.
REFERENCES:
patent: 1713939 (1929-05-01), Wingren
patent: 1829095 (1931-10-01), King et al.
patent: 1980600 (1934-11-01), Spoor
patent: 2272413 (1942-02-01), Links et al.
patent: 2281328 (1942-04-01), Shapiro
patent: 2290447 (1942-07-01), Price
patent: 3479112 (1969-11-01), Lester
patent: 3551039 (1970-12-01), Hewitt
patent: 3589803 (1971-06-01), Bouma
patent: 3733119 (1973-05-01), Catalano
patent: 3770223 (1973-11-01), Takahama
patent: 3790261 (1974-02-01), Threlkeld
patent: 4012006 (1977-03-01), Leshik
patent: 4208018 (1980-06-01), Wilkinson
Complete Automated & Theatre, Optical Radiation Corp.
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