American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 122
or Epicycloidal. — A curved tooth generated by the pointof a circle rolling away from the gear wheel or rack. Involute. — A curved tooth generated by unwinding a tape orstring from a cylinder. The rack tooth has straight sides. Involute Standard. — The standard gear tooth has a 14^ degreepressure… … GEARS—TEETH AND PARTS ^ t<^ CireuJar
Machine-shop practice
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
