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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 49

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 49
128. INTERNAL SPUR GEAR and Pinion.—In this style of gearing more tooth 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 diameter.MITER GEARS, when of unequal diameter. lompSiiiiie-i 130. CROWN WHEEL geared with a spurwheel. Used for light work. A very old device. t^ 131. SPIRAL GEARING.—The velocity ratioof spiral gears cannot be determined by direct com-parison of pitch diameters, as…

Mechanical movements

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