Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 300
pproach is made greater than thepitch, or the maximum obliquityless than 30°, or the rolHng circleless than half the size of thecorresponding pitch circle, theminimum number of teeth whichcan be used is greater than twelve. In involute teeth, contact can- /not possibly commence before thepoint E… … 290 MECHANISM. cannot be greater than the length of the arc KM, where the curvesEM and KL are the involutes to the base circle G. If, therefore,the least number of teeth that can be used is denoted by n— ih X arc KM = circumference of pitch circleand, therefore— n X arc EL = circumference of base…
Machinery, Kinematics of
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