The Steens Mountain (Oregon) geomagnetic polarity transition: 3
The Steens Mountain (Oregon) geomagnetic polarity transition: 3
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斯廷斯山（俄勒冈州）地磁极性转变：3
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
R. Coe
中科院分区：
文献类型：
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作者：
E. A. Mankinen;E. E. Larson;C. S. Grommé;M. Prévôt;R. Coe
公开了一种用于重绕卷材的设备。该设备包括一种简单且成本低廉的离合器装置，其逐渐施加和移除来自重绕轴的驱动力。一对轴承套环绕该轴设置。这些轴套具有可配合的凸轮表面。第一轴套被持续驱动。一个与卷材接触的辊子感知卷材中的绷紧或松弛状态，并选择性地操作一个凸轮，以使轴套进入和脱离凸轮配合。当处于凸轮配合状态时，第一轴套抱紧在轴上，以实现离合以及轴的相应旋转。
There is disclosed apparatus for rewinding a web. The apparatus comprises a simple inexpensive clutch arrangement which gradually applies and removes driving force from a rewind shaft. A pair of bearing sleeves are received about the shaft. The sleeves have cooperable cam surfaces. The first sleeve is continuously driven. A roll in contact with the web senses the tautness or slack in the web and selectively operates a cam to move the sleeves into and out of camming cooperation. When in camming cooperation, the first sleeve binds on the shaft to effect clutching and consequent rotation of the shaft.