Endless belt power transmission systems or components – Pulley with expansible rim means or pulleys with alternately... – Structure for variably adjusting radius of rim section
Patent
1983-01-10
1985-06-04
Staar, Lawrence J.
Endless belt power transmission systems or components
Pulley with expansible rim means or pulleys with alternately...
Structure for variably adjusting radius of rim section
474 49, 474164, F16H 910, F16H 924, F16H 902, F16H 5530
Patent
active
045212074
ABSTRACT:
An incrementally variable transmission, particularly suitable for a bicycle, having a variable sprocket which comprises: A drive flange and an indexing flange mounted on an axle with a pair of sprocket-segment-planets and at least a pair of idler-planets sandwiched between said flanges and forming a relatively rigid structure, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket.
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"Automatic Bike Transmission", Popular Science, Nov. 1980, David Scott, pp. 82-83.
Hagen, All-Speed Advertisment.
Fact Sheet: New Tokheim Gear Maker 5 Speed Bicycle Transmission, Fact Sheet.
Bednarek Michael David
Husted Royce H.
Shiber Samuel
Shiber Samuel
Staar Lawrence J.
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