Thomas, Hugh Kerr · New York, McGraw-Hill Book Company, Inc.; [etc., etc.] · leaf 82
ific value for fi as in the case of a journal.We will, therefore, retain the value of ;t = . 002=tan ^=tan 7 (75) and presently show that this is correct. The losses in a worm gear may be demonstrated graphicallyin the following manner: We may first consider the worm as acontinuous inclined plane… … Fig. 31. Taking the ordinary formula for finding the force P if frictionbe neglected P^W r =W tan a. It is immaterial whether 0 the weight be moved up the plane or the plane slid under theweight, since P and p are force and reaction. Taking frictioninto acjcoimt P=W tan (a+0) where ^ is the angle…
Gearing, Worm
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