Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1977-04-27
1979-12-04
Scott, Samuel
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
7423017D, 56 111, 180 75, F16H 5556, F16H 5536
Patent
active
041765605
ABSTRACT:
A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley and a driven pulley by first and second V-belts, respectively. The sheave assembly is carried at one end of a bell crank which is centrally pivoted to one end of a pivot arm. The pivot arm is pivotally connected to the vehicle frame and is biased to urge the sheave assembly toward an operating position with the belts under driving tension. A mechanical control linkage is connected to the other end of the bell crank, and is operable to shift the sheave assembly with respect to the driving and driven pulley to alter the sheave assembly drive ratio in a manner such that belt tension varies with variations in operating speed. The control linkage is operable to move the sheave assembly between a stopped position with both belts declutched and a range of low to high speed operating positions, and is springably biased to urge the sheave assembly toward said stopped position.
REFERENCES:
patent: 2510325 (1950-06-01), Anderson
patent: 3470757 (1969-10-01), Miley
patent: 3477439 (1969-11-01), Hamouz et al.
patent: 3494210 (1970-02-01), Ashton et al.
patent: 3515010 (1970-06-01), Wagstaff et al.
patent: 3583535 (1971-06-01), Plamper
patent: 3759342 (1973-09-01), Plamper
patent: 3777585 (1973-12-01), Plamper
patent: 3903679 (1975-09-01), Sorenson et al.
patent: 4058957 (1977-11-01), Roseberry
patent: 4128017 (1978-12-01), Clarke
patent: 4132121 (1979-01-01), Clarke
Henderson William R.
Scott Samuel
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