A hand book of general instruction for mechanics, containing useful rules and memoranda for practical men (1907)
Smith, Franklin Elijah, 1872- · New York, D. Van Nostrand company · leaf 269
eans a stationary propor support). When acted upon by two forces in oppositedirections, one force acts as a power and the other as aload. Therefore, in the law of the lever three points must beconsidered: First. The fulcrum or point, about which the barturns. Second. The point where the power is… … Fig. 64 P = Power.F = Fulcrum.W = Weight, in all figures. THE SIMPLE MACHINES 257 In the second class the weight is between the powerand the fulcrum. (Fig. 65.) u)
Mechanics · Arithmetic · Measurement
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