Variable ratio power transmission means

Details Variable ratio power transmission means Variable ratio power transmission means

1983-02-09

1986-12-23

Hermann, Allan D.

Machine element or mechanism

Mechanical movements

Grip units and features

74348, 74349, 74458, F16H 1544, F16H 1516

Patent

active

046304959

ABSTRACT:
There is disclosed a continuously variable ratio power transmission means comprising truncated cones having concave parabolic circumferential surfaces which surfaces are in rolling contact one with another and which can be moved in a linear fashion to provide a variable ratio dependent on point extent of overlap and rolling contact. In a preferred form of the invention positive drive is provided by a rack or band of gear teeth being provided in a helix around the periphery of each cone in a constant helix or lead angle.

REFERENCES:
patent: 994037 (1911-05-01), Schwartz
patent: 1049149 (1912-12-01), Roadhouse
patent: 1431649 (1922-10-01), Gillette
patent: 2209023 (1940-07-01), Jett
patent: 2711105 (1955-06-01), Williams
patent: 3158041 (1964-11-01), Rae
patent: 3298238 (1967-01-01), Lea
patent: 4192200 (1980-03-01), McCoin
patent: 4192201 (1980-03-01), McCoin
Exhibit A-The Torrington Company-tech. bulletin on bearings-8 pages., 1977.

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