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Time and its measurement (1909)

Arthur, James, 1842-1930 · Chicago · leaf 41

An illustration from Time and its measurement, 1909, leaf 41
Fig. 25—Verge Escapement C on the farther side of wheel is mov-ing left, so it will fall on pallet A, to be 38 TIME AND ITS MEASUREMENT in its turn liberated as the pallets andfoliot svvino- back and forth. It is easy ■CORO. … WEIGHT. Fig. 26—De Vicks Clock of 1364 to see that each tooth of the wheel willgive a little push to the pallet as it es-capes, and thus keep the balanceswinging. This escapement is a verypoor time-keeper, but it was one of thegreat inventions and held the field forabout 600 years, that is, from…

Time · Clocks and watches

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