A handbook on the teeth of gears, their curves, properties, and practical construction (1890)
Grant, George B. (George Barnard), 1849-1917 · Lexington, Mass., Lexington Gear Works · leaf 41
Unrevevsihle teeth EEVEKSIBLE GEAES. If the two sides a b and cd of the tooth ofFig. 9 are not similar odontoids, the teethmay still belong to an interchangeable set, forthe similar sides will always come together, no … Comjylefe teeth Whole teeth matter how the gears are interchanged. But ifone gear of such a set is turned over, re-versed face for face, the unlike odontoids a band c d will come together, and it is neces- THE NORMAL THEORY OF THE GRAB TOOTH CURVE. sary, to have the set reversible, that all…
Gearing
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