Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Fluid pressure actuator for adjustment of member
Patent
1979-01-12
1981-04-07
Braun, Leslie
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Fluid pressure actuator for adjustment of member
474 8, 474 56, 474 46, 474245, F16H 5552, F16G 5180
Patent
active
042598745
ABSTRACT:
The mechanism comprises at least one driving shaft and at least one driven shaft. A first pulley is keyed to rotate with the driving shaft and has a cheek which is fixed in translation and a cheek which is movable in translation relative to the first cheek. A second pulley is keyed to rotate with the driven shaft and has a cheek which is fixed in translation and a cheek which is movable in translation relative to the fixed cheek. A device is provided for controlling the displacement of the movable cheek of the first pulley. A transmission device extends around the first pulley and the second pulley. Radial elements adapted to be engaged in corresponding recesses in the transmission device are keyed to rotate with the driving shaft and the driven shaft between the cheeks of the first pulley and second pulley. The recesses are defined by portions of the transmission device which have a transverse elasticity so as to ensure the gripping of the radial elements when a force is exerted for moving the cheeks of the first and second pulleys toward each other.
REFERENCES:
patent: 803811 (1905-11-01), Cutter
patent: 2728239 (1955-12-01), Adams, Jr.
patent: 3115049 (1963-12-01), Moan
patent: 3118311 (1964-01-01), Francis
patent: 3177734 (1965-04-01), Rackelboom
patent: 3396591 (1968-08-01), Schorp
patent: 3448630 (1969-06-01), Keller
patent: 3782213 (1974-01-01), Rattunde
patent: 4048863 (1977-09-01), Pemberton
patent: 4048864 (1977-09-01), Ritter
"System RH", PIV publication.
Braun Leslie
Fonderie de L'Yonne
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