DISRAELI DOCUMENTS

French Patent # 1,085,622

French Patent 1,085,622 - Campagnolo main image

The drawings included with this patent show a sprung b-knuckle as used on a, single pulley, Campagnolo Sport. The text describes how the same basic spring layout can be used on either knuckle - implying that it is used on the p-knuckle of a Campagnolo Gran Sport, for example.


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