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Richard Blackburn
Arthur George Wigfield
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Individual
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Individual
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Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes
(AREA)
Abstract
13,855. Blackburn, R., and Wigfield, A. G. June 22. Chain gearing for velocipedes &c. Pairs of side links B are used to couple the links A, which are arched and bevelled to fit over the grooved rollers G pivoted in projections H on the chain-wheels.
GB189813855D1898-06-221898-06-22Improvements in Velocipede or like Driving Chains and Chain Wheels.
ExpiredGB189813855A
(en)