| 摘要 |
A slip clutch having a drum secured to the driven shaft is driven by an externally powered carrier. The carrier is supported on bearings and turns freely about the shaft. The carrier supports a pair of drive shoes secured together by springs which tend to prevent the shoes from engaging the drum. Means are provided for adjusting the mass of each drive shoe from the exterior of the drum to enable adjustment of the centrifugal force acting upon each shoe as it and the carrier are rotated. By this means, the rotational speed at which clutch engagement occurs, is made selectively adjustable.
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