Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 262
om each other m extreme cases about500 per cent. In 1886 Prof. Wm. Harkness (Proc. A. A. A. S. 1886), from an examinationof the bibliography of the subject, beginning in 1796, found that according to the constantsand formulae used by various authors, there were differences of 15 to 1 in the power… … Fig. 4,185.—Gurney Herringbone gear, pinion, and brake pulley. The ratio between gearsis about 5 or 7 to 1, and the teeth in gear and pinion converge from the center of its faceoutward at an angle of about 2 i degrees. There is nothing new about this type of spurgear, as it has been in use for mill…
Electrical engineering
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