Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 53
128. INTERNAL SPUR GEAR and Pinion.—In this style of gearing more tootli surface is in con-tact than with outside teeth; it has less wear and greatpower. Much used in hoisting machines. … 129. BEVEL GEARS, when of equal diameterMITER GEARS, when of unequal diameter. 130. CROWN WHEEL geared with a spurwheel. Used for light work. A very old device. ]=> 131. SPIRAL GEARING.—The velocit} ratioof spiral gears cannot be determined by direct com-parison of pitch diameters, as in spur…
Mechanical movements
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