Endless belt power transmission systems or components – Pulley with expansible rim means or pulleys with alternately... – Structure for variably adjusting radius of rim section
Patent
1982-08-17
1985-07-16
Novosad, Stephen J.
Endless belt power transmission systems or components
Pulley with expansible rim means or pulleys with alternately...
Structure for variably adjusting radius of rim section
474 53, F16H 902
Patent
active
045293945
ABSTRACT:
A transmission ratio varying arrangement involves establishing transmission between a drive shaft and a driven shaft by two orbital systems, one for each shaft, and including gear wheels which move concentric to the respective shafts thereof. One orbital system is joined to the other by simple or composite conventional transmission elements, the radius of each orbit being variable simultaneously, maintaining the sum thereof constant. Each of the shafts is provided with an identical truncated thickening which is in direct position and which, acting as a wedge, contacts radial supports which are guided in holes made in a sleeve which is equally spaced from the holes and which is provided at its outer part with peripheral wings perpendicular to the shaft. The wings are provided with radial notches in which there are guided the shafts on which there rest the gear wheels which move when the thickened shaft and the sleeve turn in unison joined by keys. The shafts of the wheels are disposed on forks between the arms of which are radial supports which, through the holes of the sleeve, contact the truncated thickening of the shaft. Each shaft is displaceable in an opposite direction with respect to the other shaft, proportionally varying the radius of contact of the radial supports in one shaft with respect to the other, by maintaining the sum of both radii constant.
REFERENCES:
patent: 740829 (1903-10-01), Dumaresa
patent: 1092098 (1914-03-01), Fitzgerald
patent: 1379504 (1921-05-01), Young
patent: 1614266 (1927-01-01), Tschappat
patent: 2552179 (1951-05-01), Kamp
McKenzie, Jr. Frank H.
Novosad Stephen J.
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