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 166
12-tooLhpinion. A gear Hue laid out by its use will, therefore,work satisfactorily with any gear having the samepitch and general tooth dimensions, and with theoreti-cal curves constructed with a describing circle whos-diameter is equal to the radius of a 12-tooth pinion. After drawing the pitch,… … with the pitch circle, and their distances from the pitchcircle are found from the odontograph table. To find the distance from the pitch circle, for the BO line of face centers for a diametrical pitch gear, use tlierun-.bcrs headed Diametrical Pitch. and select fronithe column headed Distances A,…
Mechanical drawing
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