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US 4,198,134 AGranted
Film cartridge
AssigneeMontron Corporation
InventorsWerner W. Ciupke, Steven R. Runyan, Hugh P. Sherlock
Life of this patent
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AssigneeMontron Corporation
InventorsWerner W. Ciupke, Steven R. Runyan, Hugh P. Sherlock
Estimating the term…
Film cartridge for use in viewing motion picture film having means forming a framework with an index plate with an aperture therein. A continuous length of film having perforations along one edge thereof is carried by the framework. Guide means is provided on the framework for guiding the film over the index plate and past the aperture. Means is provided for advancing the film frame by frame past the aperture. A spool is rotatably mounted on the framework. The spool has a central hub and a film supporting surface extending radially from the hub so that the hub extends away from the surface in a direction generally perpendicular to the surface. The spool has an annular rim spaced from the hub and extending away from the surface and in the same direction as the hub. A portion of the length of film is formed as a roll and is disposed in the spool with the hub in the center of the roll and with the rim on the outside of the roll so that the film can be payed out continuously either from the inside of the roll or the outside of the roll during movement past the aperture.
In a cartridge for use in viewing motion pictures, means forming a framework having indexing means mounted thereon, said indexing means having an aperture therein and a pair of spaced apart index projections disposed on opposite sides of the aperture, a continuous length of film having perforations along one edge thereof, guide means for guiding said film over said indexing means and past said aperture, means for advancing the film past the aperture in a plane in forward and reverse directions and a spool rotatably mounted in said framework, said spool having a central hub with a film supporting surface extending radially therefrom so that the hub extends away from the surface in a direction generally perpendicular to said surface, said spool having an annular rim extending outwardly from the surface in the same direction as the hub, a portion of said length of film being formed as a roll and being disposed in said spool with the hub in the center of the roll and with the rim on the outside of the roll so that the film can be payed out continuously either from the inside of the roll or the outside of the roll, said film when being payed in on the outside of the roll and engaging said annular rim to help drive the spool.
In a cartridge for use in viewing motion pictures, a cartridge body having a generally planar side wall and upstanding end walls providing an open side, a cover mounted on said cartridge body enclosing said open side, one of said end walls having an opening formed therein, indexing means carried by the cartridge body and having an aperture therein in registration with the opening in the end wall, said indexing means having a pair of spaced apart projections disposed on opposite sides of the aperture, a length of film having perforations along one edge thereof disposed in said cartridge, guide means for guiding said film over said indexing means past said aperture in a plane, sprocket means mounted in the cartridge body for advancing the film past the aperture, and means in the cartridge body for paying out said film and for taking up said film, said indexing means being provided with inclined surfaces on opposite sides of the aperture so that the film is bowed inwardly into the cartridge and away from the opening in the end wall in its travel over the indexing means so that when the film is moved out of engagement with one of the projections, the portion of the film in the aperture remains in the same plane with respect to the aperture.
Dependencies are inferred from the claim text.