发明名称 REELING APPARATUS WITH DYNAMIC VIBRATION ABSORBER
摘要 Reeling apparatus adapted for feeding reeled film between reels, film cartridges, etc. in either direction and uses thereof in image projection devices. The film reels are driven by respective electric motor-driven spindles having in the spindle drive a dynamic vibration absorber which resonates at sixty cycles per second to eliminate jittering at slow speed film drive of an image projected on a screen.
申请公布号 US3667695(A) 申请公布日期 1972.06.06
申请号 USD3667695 申请日期 1970.02.16
申请人 EUGENE DIETZGEN CO. 发明人 PHILIP J. BROWNSCOMBE
分类号 G03B1/42;G03B21/11;(IPC1-7):B65H75/02;G03B1/04;B65H75/34 主分类号 G03B1/42
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