Methods of machine shop work : for apprentices and students in technical and trade schools (1914)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York : McGraw-Hill · leaf 272
ide has, in consequence, the curved form indicated. The introduction of the straight-sided crown gear tooth as inFig. 262 produced, therefore, an entirely new set of curves in ^ The rack is a limiting case of the crown gear. .\s the diameter of the crowngear increases, the base sphere also… … Fig. 264.—Fellows gear shaper, generating system. m I L ^i ^* 1 ■ Mikm • 1 j ■ tA ....-.-- *i — -^wi^^^ ^ ,^g^l^^ > -^,^mm -* ■-»» ^\^- ,^- \. !
Machine-shop practice
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