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
1988-11-02
1989-10-17
Bui, Thuy M.
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 5554
Patent
active
048743518
ABSTRACT:
A continuously variable belt-drive transmission of the type having spaced apart sheaves each provided with a plurality of sheave segments which may be moved radially inwardly and outwardly. A novel control is provided for selectively moving the segments inwardly or outwardly while the sheaves are rotating, the control including a motor carried by the body of each of the sheaves, the motor being operatively interconnected with the associated sheave segments. Power is transmitted to the motor by electrical wires, slip rings and brushes.
REFERENCES:
patent: 4068539 (1978-01-01), Nyc
patent: 4295836 (1981-10-01), Kumm
patent: 4409862 (1983-10-01), Adkins
patent: 4501574 (1985-02-01), Miro
patent: 4759739 (1988-07-01), Weir
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