Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 235
867. BICYCLE CRANK.—A devicefor shortening the up-crank stroke. Theeccentrics are fixed to the frame. Thecranks and eccentric straps revolve onball bearings, carrying by link connectionthe secondary crank shaft and sprocketwheel. 868. Horizontal plan. 869. SWINGING BALL-BEARINGBICYCLE… … ^ ^ 1 I / ////// A. F.HAVENS PLANETARYCRANK GEAR, adaptedtV----~-----r for bicycles for varying pro-portion of motion. The gearB is fast on the sprocket-B ^ \\. wheel shaft. Gear C is fast^ to a block that slides in thelongitudinal slot of the crossD. The curved arms of thecross are slotted on the…
Mechanical movements
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