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James Thomson
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Individual
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Publication of GB190113543ApublicationCriticalpatent/GB190113543A/en
13,543. Thomson, J. July 3. Lathes.-Relates to mechanism for driving the cranks of velocipedes, lathes, &c. A lever A, B, which may be a treadle-lever, is pivoted at C to a lever having at its lower end a toothed quadrant D engaging a rack F formed on a guide-bar H, K. At the other end B of the lever A, B are rollers M, L running on the guide-bar H, K. A bar P, pivoted at N, is connected to the crank or axle.
GB190113543D1901-07-031901-07-03A New or Improved Mechanism for Driving the Cranks for Velocipedes Lathes and other Machines.
ExpiredGB190113543A
(en)