Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 79
ably right-handed. The problem is, knowing thepitch of the leading screw and the pitch of the screw required,to arrange the change wheels accordingly.^ Take one or twonumerical illustrations. Suppose that the leading screw is right-handed, and has four threads to the inch, the smallest wheel of… … Fio. 76. are used (referring to Fig. 69)— fore for each revolutionof the mandrel the lead-ing screw must onlyrotate through one-sixthof a revolution. Thevalue of the train istherefore one-sixth.Moreover, since bothscrews are right-handed,the mandrel and lead-ing screw must rotatein the same…
Machinery, Kinematics of
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