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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 10
38 87 27.70 19 6.05 42 13.37 65 20.63 88 28.02 20 6.37 43 13.69 66 21.02 89 28.34 21 6 69 44 14.00 61 21.33 90 28.65 22 7.00 45 14.33 68 21.65 91 28.97 23 7.32 46 11.65 69 21.97 92 29.29 24 7.64 47 14.96 70 22.29 93 29.60 25 7.96 48 15.28 71 22.60 94 29.93 26 8.28 49 15.60 72 22.92 95 30.25 27 8.60… … The Epicycloid.Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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