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 62
n,zero power, Now, by means of ankle-motion on onecrank at this point we get thirty pounds of power,represented by the length of the line from a to b;and by ankle-motion on both cranks we have sixtypounds, represented by the total length of the line froma to c. After the crank has advanced forward… … 60 ...60 62 .... 23 84 .... 9 112 .... 7 133 .... 3 U6 150 .... 0.... 0 5 146 .... 0 to 133.... .... 3 112.... .... 7 84.... .... 9 62.... .... 23 60.... .... 60 ?3 •Tj HOW THE ANKLE-POWER EXPANDS. Ql two pounds, represented by the length of the next line(mo), and so on up, the direct power…
Cycling · Bicycles
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