Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Including belt shiftable axially from one to another surface...
Patent
1992-11-16
1994-03-22
Bui, Thuy M.
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
474 80, F16H 900
Patent
active
052959163
ABSTRACT:
A derailer for derailing a drive chain from one sprocket to an adjacent sprocket of a multi-stage sprocket assembly wherein operation of the derailer thereof is automatically controlled by centrifugal force so that the driving chain is automatically shifted to higher gears as the speed of the bicycle increases.
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