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Rene Jules Alphonse Delacroix
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Publication of GB190617744ApublicationCriticalpatent/GB190617744A/en
17,744. Delacroix, R. J. A. Aug. 19, 1905, [date applied for under Patents Act, 1901]. Driving-mechanism; chains, maintaining tension of.-In cycle driving-mechanism of the type described in Specification No. 8513, A.D. 1903, in which are employed an elliptic crank and a jockey pulley mounted on a fixed axis to maintain the chain in tension, the jockey pulley E is arranged in such a position that the common tangent T<1> to the jockey pulley and to a circle C<1> concentric with the chain-wheel C and having as diameter the mean of the axes of the chain-wheel, will be parallel to the common tangent T to this same circle and the sprocket D of the driving road wheel, outside tangents being intended in both cases.
GB190617744D1905-08-191906-08-07Improvements in and relating to Chain Driving Gear for Velocipedes.
ExpiredGB190617744A
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