Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1973-12-03
1976-06-29
Feldman, Peter
Winding, tensioning, or guiding
Coil holder or support
Spool or core
352128, B65H 1748
Patent
active
039661342
ABSTRACT:
Cassette for an endless type cinefilm comprises a casing containing therein the film coiled to form windings thereof supported and guided between outer and inner guide rings. The casing has a film gate across which a portion of the film pulled out of the innermost winding of the windings of the film through the outlet cut-out portion of the inner guide ring is moved for the projection or the exposure of the film. After having moved across the film gate, the film is advanced into the inlet cut-out portion of the outer guide ring to merge into the outermost winding of the windings of the film. The casing is provided with an arcuate guide member for the film located outside of the outer guide ring at a position remote from the cut-out outlet portion of the inner guide ring through which the portion of the film is pulled out from the innermost winding of the film. The arcuate guide member is arranged obliquely with respect to the direction of movement of the portion of the film moved from the outlet cut-out portion to the arcuate guide member so that the portion of the film is twisted by 90.degree. so as to maintain the plane of that portion of the film closely adjacent to the upper end face of the windings of the film normal to the axis thereof while the portion of the film after having been guided by the guide member is twisted by 180.degree. while changing the direction of movement thereof so that the plane of that portion of the film after having been guided by the guide member is held closely adjacent to and parallel to the plane of the opposite lower end face of the windings of the film and in a plane lying within the width of the film forming the windings normal to the axis of the windings thereby permitting the internal dimension of the casing in the axial direction of the windings to be made only nominally greater than the width plus the thickness of the film rendering the thickness of the casing to be made to the minimum.
REFERENCES:
patent: 2327108 (1943-08-01), Heyer
patent: 3289964 (1966-12-01), Vito
patent: 3697009 (1972-10-01), Zahradnik
patent: 3726457 (1973-04-01), Staar
Copal Company Limited
Feldman Peter
Jillions John M.
Munz Otto John
LandOfFree
Cassette for an endless type cinefilm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cassette for an endless type cinefilm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cassette for an endless type cinefilm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1272260