Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 300
1175. WATCH REGULATOR.—The outerend of the balance spring is fixed to a stud atR, and the inner end to the balance wheelarbor. The index hand carries two curb pinsat P, between which the spring vibrates, form-ing a neutral point in its length which limitsthe arc of movement of the balance wheel,… … 1176. ANTIQUE WATCH ESCAPE-MENT.—A pinion on the balance-wheel arbormeshes in a crown gear, on the shaft of whicha mutilated screw of large pitch releases theteeth of the escapement and gives an impulseby the incline of the screw. 290 HOROLOGICAL.
Mechanical movements
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