发明名称 Film transport system
摘要 A film transport system, usable in conjunction with a standard projector incorporating a feed reel and a take-up reel, both of which utilize a braking system providing a continuous drag on the reels. The take-up reel is motor driven and provides, in the braking system, a linkage control whereby the continuous drag will release upon release of the film from the projector.
申请公布号 US4039160(A) 申请公布日期 1977.08.02
申请号 US19760678605 申请日期 1976.04.20
申请人 HENDRICK, JOHN BURTON 发明人 HENDRICK, JOHN BURTON
分类号 G03B1/54;(IPC1-7):B65H25/04;B65H25/22;G03B1/18 主分类号 G03B1/54
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