Cinematic projector with integral take-up reel
AssigneeEtablissements Heurtier et Cie-Societe anonyme-
InventorAntoine Heurtier
Life of this patent
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Abstract
A cinematic projector having a reversible drive motor and a drive shaft driven by the drive motor with a pivotably mounted control assembly constituted of a plurality of pinions in mesh with one another and movable between first and second positions for drivingly engaging the drive shaft. In the first position, the control assembly transmits drive from the drive shaft for forward and reverse drive of the film respectively according to the direction of drive of the drive motor while in the second position the control assembly transmits drive from the drive shaft in forward motor drive. An operating assembly is drivingly coupled to the control assembly for engaging the film on the internal reel for rewinding the film from the internal reel to the external reel only when the control means is in the second position.
Claims27
A cinematic projector comprising a reversible drive motor, a drive shaft driven by said drive motor, an internal take-up reel, support means for an external film supply reel, a pivotably mounted control means for transmitting drive from said motor for advancing film between said reels, said control means being movable between first and second positions for drivingly engaging said drive shaft and in said first position transmitting drive from said shaft for forward and reverse drive of the film respectively according to the direction of drive of the drive motor, and in said second position transmitting drive from said shaft which is driven in forward drive by said motor, and operating means drivingly coupled to said control means for engaging the film on said internal reel and rewinding the film on the external reel when the control means is in said second position.
Dependencies are inferred from the claim text.