Old clocks and watches & their makers : being an historical and descriptive account of the different styles of clocks and watches of the past, in England and abroad, to which is added a list of nearly twelve thousand makers (1922)
Britten, F. J. (Frederick James), 1843-1913, Britten, Annie · London : E. & F. N. Spon · leaf 624
\.^/^... Fig. 830.—An early applicati n cf the balancevSpring. appears to have used the circular shde with an index from the first.This arrangement, which remained in favour for a long period, isshown in Fig. 828. Below, and attached to a silver disc, graduated Mechanism of Clocks and Watches 607 … Fig. 831.—Movemept with Regu-lator on Barrows principle. and figured as a guide to regulation, is a pinion which gears withteeth on the outer edge of the circular slide ; from the inner edgeprojects an arm carrying two upright pins which embrace thespring. The projecting end of the pinion is…
Clocks and watches · Clock and watch makers
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