A handbook on the teeth of gears, their curves, properties, and practical construction (1887)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 52
A are in the same line, the faceand flank will join at 0, and be a singlecurve. no cusp will be apparent, but the slightestincrease of the proportion will separate thepoints. In the most convenient system, whereA0E=1^° 28 40 , and sin. AOE=^, thecusps will appear whenever the segmentand pinion… … Cusps of Segmental Flank.—When the ra-dius 0 A, Fig. 25, is small, compared withthe radius 00, the pinion flank takes theform shown by Fig. 24; but as the pro- OAportion Yjp increases, a value will be reached, OAwhen ^ =2^ sin. AOE, at which a double cusp, Q R, will form. At exactly that pointthe…
Gearing
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