Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 15
hile to produce theinvolute system it is necessary to define theline of action as a straight line, and derivethe system from that. If the rack odontoids are cycloids, as inFig. 22, the resulting tooth system will bethe cycloidal, commonly misnamed the epicycloidal system. The line of actionwill be… … Segmental MgV23. Rolled Cin-vc Theory 13 will be the segmental, and its line of actionwill be the loop of the Conchoid of Nico-medes. If we choose a parabola for the rack tooth,as in Fig. 24, the parabolic system will beformed with its peculiar hour glass lineof action. Only three of these tooth…
Gearing
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