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Scientific American, Vol. 80, No. 19 (1899) (1899)

leaf 18

An illustration from Scientific American, Vol. 80, No. 19 (1899), 1899, leaf 18
hat, when a pow- possible the actual stresses to which a frame is sub- in this instrument of torture, and if, after it has been erful 260-pound rider is climbing a steep hill, or worse, jected when put to hard usage on the road. The coasting down a hill whose surface is rough and lumpy, merrily… … to work out the strain-sheet of a the floating brake. MACHINE FOR TESTING BICYCLE FRAMES. bicycle in the same way as he would The tangential reaction of the that of a railway bridge, taking motor will cause the float on which the possible maximum stresses due to the work of heavy it is carried to…

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