Automatic transmission for a bicycle and the like- pedaled...

Details Automatic transmission for a bicycle and the like- pedaled... Automatic transmission for a bicycle and the like- pedaled...

B - Operations, Transporting

62

M

74/32

B62M 25/00 (2006.01) B62M 9/08 (2006.01)

Patent

CA 1234997

-38- ABSTRACT OF THE DISCLOSURE An automatic transmission for a bicycle is dis- closed comprising a sprocket wheel of variable diameter, for receivably engaging a linked bicycle chain, drivingly connected to a bicycle wheel. The diameter of the sprocket wheel can be varied in relation to the angular speed of the bicycle wheel. Variation in the diameter of said sprocket in response to drive pressure applied by said linked bicycle chain is prevented by a locking mechanism.

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