Variable transmission gear, particularly for bicycles

Details Variable transmission gear, particularly for bicycles Variable transmission gear, particularly for bicycles

1987-05-15

1988-09-20

Bui, Thuy M.

Endless belt power transmission systems or components

Pulley with expansible rim means or pulleys with alternately...

474 49, F16H 5552

Patent

active

047722509

ABSTRACT:
Variable transmission gear particularly for bicycles comprising a transmission element such as a chain or a belt which is in engagement with a driving and a driven rosette, one rosette consisting of two parts adapted to be mutually shifted along straight guidings, the axis of said guidings being parallel and passing beyond the axis of supporting shaft.

REFERENCES:
patent: 3995508 (1976-12-01), Newell
patent: 4493678 (1985-01-01), Husted

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