Derailleur mechanism for bicycles

Details Derailleur mechanism for bicycles Derailleur mechanism for bicycles

1986-09-22

1988-07-19

Novosad, Stephen J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

F16H 906

Patent

active

047582057

ABSTRACT:
A pantograph guide pulley mechanism directs a bicycle chain onto a selected rear sprocket. A floating take-up pulley is linked to a resilient rod to provide chain tension and to take up and play out chain as required.

REFERENCES:
patent: 2099477 (1937-01-01), Gruyer
patent: 2431513 (1947-11-01), Schwinn
patent: 3803933 (1974-04-01), Huret et al.

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