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 296
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. 19 290 HOROLOGICAL.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
