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1. 发明授权

US4477398A Yarn monitoring process 失效
标题翻译：纱线监控过程
公开(公告)号：US4477398A
公开(公告)日：1984-10-16
申请号：US395156
申请日：1982-07-06
申请人： James W. Henry , Stanley R. Scroggin
发明人： James W. Henry , Stanley R. Scroggin
IPC分类号： B65H23/04 , B65H63/00 , B65H63/032 , B29C17/02
CPC分类号： B65H23/044 , B65H63/003 , B65H63/0321 , B65H2701/31
摘要： Disclosed is a method of moving a roll out of contact with a work-piece in response to its developing a slower speed than normal while being driven by frictional engagement with the work-piece which comprises(a) generating an electrical signal as the roll moves past a reference point during each revolution,(b) using the electrical signal to set a timer for a predetermined duration,(c) timing each revolution of the roll by measuring time lapse between signals,(d) comparing the time for each revolution with the timer of predetermined duration, and(e) actuating a mechanism to withdraw the roll from contact with the work piece if a revolution is longer in time than the predetermined duration.
摘要翻译：公开了一种在与工件的摩擦接合的驱动下响应于其显影速度比正常速度慢的速度使工件与工件脱离接触的方法，其包括（a）当辊移动时产生电信号在每次旋转期间经过参考点，（b）使用电信号将定时器设定预定持续时间，（c）通过测量信号之间的时间间隔来定时滚动转动，（d）将每次转动的时间与所述定时器具有预定的持续时间，以及（e）如果转动时间比预定持续时间长，则致动机构使辊不会与工件接触。

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