Benjamin, Charles H[enry], 1856- [from old catalog] · New York, H. Holt and company · leaf 161
Friction clutches are not so positive in action but canbe engaged without difficulty and without stoppingthe driver. Three different classes of friction clutches may bedistinguished according as the engaging members areflat rings, cones or cylinders. The Weston clutch,Fig. 61, belongs to thefirst…
Machine design
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