发明名称 Integral spool type film projector with pivotable gear drive - has film transport roller for respooling from integral spool when drive gear is disconnected
摘要 <p>A projector with an integral spool has a group of drive or gear wheels (9, 63, 61) mounted on a framework and in mesh with each other and a main drive shaft (2) such that the drive or gear wheel group may be pivoted out to allow automatic forward or backward running to be accomplished by a simple motor rotation direction reversal. This allows re-spooling in the forward drive rotation direction. A drive roller which is only powered when the drive/gear wheel group is uncoupled powers the film to allow respooling to be carried out from the integral spool.</p>
申请公布号 FR2319918(A2) 申请公布日期 1977.02.25
申请号 FR19750025582 申请日期 1975.07.31
申请人 HEURTIER ET CIE 发明人
分类号 G03B21/43;(IPC1-7):03B1/00;03B19/18 主分类号 G03B21/43
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