Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 407
will then be a definite plane inthe worm-wheel perpendicular to the axis about which it.rotates.The tooth-profiles of the worm-wheel in any particular plane, suchas BB, must be such that they would correctly gear with a rack ofthe form &&&, in Pig. 433. Similarly, the tooth-profiles of… … Fio. 435. any section of a worm-wheel by a plane perpendicular to its axisis the conjugate of a rack whose profile is the section of themating worm in the same plane. In other words, the profiles ofthe worm-wheel teeth are the envelopes of aU the possiblesuccessive positions of the worm-teeth which…
Machinery, Kinematics of
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