A handbook on the teeth of gears, their curves, properties and practical construction (1885)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 11
rk. It is a fact that the best work in this line is made from tem-plets that are laid out by theory, but dressed into shape and perfected I yhand and eye processes. FIG. 7. THE EPICYCLOIDAL ENGINE. ODONTOGRAPHS. ^Nlaiiy arbitrary or rule of thumb methods for shapinor p^ear teeth havebeen… … THE WILLIS ODONTOGRAPH is a method for finding thecenter m of the circle which is tangent to the epicycloid a b c, at the point b,where it is cut by a line bm, which passes through the adjacent pitch jjointk, and makes the angle gkf=T5° with the radial line kf. The radius used, is not the line m b,…
Gearing
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