Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 91
D which, again, drives the cog-wheel £, , . . , , and this causes the shaft F with the crank G on its end to rotate. driving-wheel will be required to exert a force of 10 pounds on the crank G ? 3. Explain the action of thelevers in the scale shown inFig. 102. If HF^ = 12 ft., FD^ = 4inches, MN =… … Fio. 102.—Diagram of multiplying levers in a scalefor weighing hay, coal and other heavy loads.In the figute is shown one half of the system oflevers, as seen from one end. The platform Prests on knife-edges D, D-, the former of whichis on a long lever, the latter on a short one. Theknife-edges F,…
Physics
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