The essentials of gearing; a text book for students and for self-instruction, containing numerous problems and practical formulas (1911)
Anthony, Gardner C. (Gardner Chace), 1856- · Boston : D.C. Heath · leaf 76
DRAFTING THE BETEL GEAR. it is custoniar)- to draw the outline on the developed surface ofa cone which is tangent to the sphere at the pitch circle.Tliis cone is called the normal, or back cone. Plate 13 il-lustrates a sphere A B D, from which the pitch cones A C Band BCD have been cut. Tangent to…
Gearing
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