A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 333
rk, previously determined. EXPERIMENT LV. THE TOOTHED WHEEL. ^ 144. Construction of a Toothed-Wheel Apparatus.— A toothed-wheel apparatus capable of giving fairlyaccurate results is represented in Pig. 135, as seenfrom above. A vertical cross-section is shown alsoin Fig. 136. The works (e) of an… … Fir. 135. spring clock, from which the escapement lias been re-moved, are mounted on a piece of wood, and a discof cardboard (a) is attached to the axle usually carry-ing the second hand. Two pieces of watch-ispring are also attached to thisaxle at b, and bent intoloops so that two smallloads (e…
Physics
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