Machine design; a manual of practical instruction in designing machinery for specific purposes, including specifications for belts, screws, pins, gears, etc., and many working hints as to operation and care of machines (1918)
Wallace, Ernest L · Chicago, American technical society · leaf 77
practicalarticle. It is usually provided with a head, or gib, which permitsa draw hook to be used to wedge between the face of the hub and thekey to facilitate starting the key from its seat. Two keys at 90° from each other may be used in cases whereone key will not suffice. The fine workmanship… … Fig. 38. Woodruff Key certain locations. This key is a half-disk sunk in the shaft and the hubis slipped over it. A simple rotary cutter is dropped into the shaftto produce the key seat; because of the depth in the shaft, thetendency to rock sidewise is eliminated, and the drive is by shear.…
Machine design
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