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
1985-06-07
1986-05-27
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 5554, F16H 1102
Patent
active
045913510
ABSTRACT:
In a variable radius pulley drive system wherein a flat drive belt engages the central shanks of drive elements supported by the side pulley sheaves and the radial location of the drive elements is determined by the intersection of logarithmic spiral grooves in the pulley disks of the pulley sheaves whereof the stresses on the bearing members of the drive elements can be substantially reduced by disposing the belt element driving line toward or on the center line or axis of the bearing members of the drive elements.
REFERENCES:
patent: 4024772 (1977-05-01), Kumm
patent: 4295836 (1981-10-01), Kumm
Bui Thuy M.
Cates Charles E.
Myer Victor
Novosad Stephen J.
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