Cycling art, energy and locomotion: a series of remarks on the development of bicycles, tricycles, and man-motor carriages (1889)
Scott, Robert Pittis · Philadelphia, J. B. Lippincott · leaf 31
vity and also the location of the source of powerof said weight, and let c represent the point at whichit is desired to apply the power to turn the wheel. WORKING ANGLE FOR POWER. 29 Now, it is known that the weight W, acting by grav-ity in the direction ab, may be taken as proportionalto the… … where —: is evidentlyab always less than unity. Now, if the angle bac is thirty degrees, and W= 150 pounds, W times ^ is 130 ^^ Power angle. pounds. Or, by trigo-nometry, the weight W, acting in the direction ab, bygravity as in w^orking a cycle, will have a resultant inthe direction ac…
Cycling · Bicycles
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