r atthis point is rather more than half a circle; but its pointlocks against the inner side of the shell and runs there till 163 164 THE MODERN CLOCK. the balance completes its vibration and returns, when thetooth which was inside the cylinder escapes, giving an im-pulse as it does so, and the… … Fig. 52. a, wheel; b, cylinder; f, stalk on which teeth are mounted. ing for support of the balance only one-fourth of a circle,in order to allow as much vibration as possible. This willbe seen very plainly on examining Fig. 53, which is an ele-vation of the cylinder to an enlarged scale.…
Clocks and watches
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