Word: levering
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Dates: during 1900-1900
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...apparatus. This new invention which is a good deal like a sliding rowing seat in appearance, is intended to impel boats, carriages and bicycles by means of arm and leg power. The operator sits on a sliding seat, puts his feet in a sliding boot rest, and grasps a lever in each hand. With a simultaneous use of both legs and body he can send the machine ahead at a great rate of speed, with little expenditure of force. The machine can be used by local muscles or by all at once, and is thus a better developer than even...