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 154
d and its ad~d Old inn is called a Tooth. A toothed cylinder orwheel is called a Gear. Two or more gears withteeth engaging each other are called a Train. A linebetween the centers of two wheels is called the Line ofCenters. A circle touching the addenda is called theAddendum Circle, which… … 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…
Mechanical drawing
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