Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 62
k so that bothare rotated with the proper speeds, and theshafts of the two gears are gradually broughttogether while they are revolving, the edgeof the blank will be formed with concaveteeth that curve upwards about the sides ofthe cutting gear. If the hob is then replacedwith a spiral gear that is… … Concave Worm Geanr and Worm,Fig. 07, 60 Worm Gearing-. angle, but in practice it is confined to theworm and gear on shafts at right angles. The nature of the contact between theworm and the concaved worm gear has notyet been definitely determined, but there isno reason to suppose that it is…
Gearing
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