Bicycle propulsion and speed change means

Details Bicycle propulsion and speed change means Bicycle propulsion and speed change means

1976-10-18

1978-03-07

Betts, Kenneth H.

Land vehicles

Wheeled

Occupant propelled type

280255, 74130, B62M 104

Patent

active

040776484

ABSTRACT:
The invention relates to a novel propulsion means and first and second speed change means for a bicycle. The propulsion means comprises lever means adapted to be pumped up and down by the operator for driving the rear wheel of a bicycle through the speed change means, a propulsion wheel, and sprocket means.

REFERENCES:
patent: 540686 (1895-06-01), Price
patent: 580512 (1897-04-01), Sharpneck
patent: 1505271 (1924-08-01), McNeil
patent: 3414293 (1968-12-01), Frye

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