Notes for mechanical drawing; arranged for the use of the students of the Mechanic arts high school and the Evening school of trades (1904)
Mathewson, Frank E. (Frank Elliott), b. 1869 · Springfield, Mass. · leaf 156
f/g.2 ■P/rc/r C/>c/et^^ic^e/7r/cm the center of the tooth from top to bottom. The circleexists geometrically in every gear, and. in the studvof gear wheels, the problem is to shape the teeth so that the pitch circles ivill just touch each other luithoutslipping. I MECHANICAL DRAWING 75 The… … ^ P/Tch D/ome/^r The distance between the center of one tooth andthe center of the next tooth, measuring along the pitchcircle, is the Circular Pitch; that is, the circular pitchis equal to one tooth and one space. If the circum-ference of the pitch line or circle is divided by thenumber of teeth…
Mechanical drawing
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