Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 270
er strain. It is impossible for a Woodruff key to roll over in its seat, as is ELEMENTARY MACHINE DETAILS. 255 often the case with an ordinary key. In case of an accident,Woodruff keys have been known to shear off without damagingpulley or shaft, where an ordinary key of the same width wouldroll in… … Fig. 339. through one or both of the connected pieces and transmit powerby a resistance to shearing at two cross-sections. The cottersare usually made rectangular in cross-section, and the endsrounded, as shown in Fig. 339. 256 MECHANICAL DRAWING. The cotter-way with the rounding ends is…
