Epicyclic change speed gears

Details Epicyclic change speed gears Epicyclic change speed gears

1974-12-12

1976-01-27

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74781B, F16H 344, F16H 5710

Patent

active

039344932

ABSTRACT:
A gear hub for a bicycle has two co-operating epicyclic gear trains selectively connectable together to a drive input means and to the gear hub under the control of an axially fixed, manually actuable rotatable cam operating on various pawls through axially shiftable cam followers to give a requisite drive transmission path through the gear trains appropriate to the gear ratio selected.

REFERENCES:
patent: 2441989 (1948-05-01), Brown
patent: 2687050 (1954-08-01), Brown
patent: 3438283 (1969-04-01), Schwerdhofer
patent: 3608683 (1971-09-01), Fujisawa

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