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Horatio Marsh Ward
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Publication of GB189721999ApublicationCriticalpatent/GB189721999A/en
Devices For Conveying Motion By Means Of Endless Flexible Members
(AREA)
Gears, Cams
(AREA)
Abstract
21,999. Ward, H. M. Sept. 25. Chain gearing for cycles. An elliptical chainwheel A is fixed on the pedal-crank axle, and geared by a chain with an ordinary circular wheel N on the driving-wheel hub. The tension of the chain may be kept constant by forming the chain of alternate sections F, H, the links, blocks, or rollers forming the sections F being provided with projections on their inner or gearing faces.
GB189721999D1897-09-251897-09-25An Improvement in the Sprocket Wheel applied to Cycles.
ExpiredGB189721999A
(en)