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Expired
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Wilhelm Boos
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Individual
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Individual
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Publication of GB190507902ApublicationCriticalpatent/GB190507902A/en
7902. Boos, W. April 13. Driving-mechanism; treadle - levers.-In driving- gear for cycles, treadle-levers g, h, connected by ball-headed links y, z and a lever n, engage during their downward movement with crank pins or rollers i, i<1> upon the chain-wheel c and a disk d. The ends of the slots k are so curved that the rollers leave the treadle-levers when in their lowest position. The lever n is mounted upon a pin p between two brackets p<1>.
GB190507902D1905-04-131905-04-13Improvements in or relating to Driving Gear for Cycles.
ExpiredGB190507902A
(en)