US PATENT SUBCLASS 474 / 8
PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.)

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

8PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) {13}
9  DF  .~> Members are gripping jaws actuated during each rotation of pulley {1}
11  DF  .~> Speed responsive {2}
17  DF  .~> Load responsive {2}
22  DF  .~> Temperature responsive
23  DF  .~> Adjusted by power from pulley drive train
24  DF  .~> And member has plural, relatively axially movable drive faces
25  DF  .~> And pulley shiftable laterally of its axis of rotation {2}
28  DF  .~> Fluid pressure actuator for adjustment of member
29  DF  .~> Including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment {1}
32  DF  .~> Plural members forming plural belt-receiving grooves on common axis {2}
37  DF  .~> By manual actuator for one or both confronting members {2}
43  DF  .~> Including lubrication or particular guide or bearing for movable member {2}
46  DF  .~> With spring device

DEFINITION

Classification: 474/8

PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.):

(under the class definition) Subject matter wherein a pulley* includes a pair of separate components having belt*-engaging surfaces facing each other for receiving a belt in the space between such surfaces, the components being mounted for relative adjustment toward and away from each other in directions generally parallel to the longitudinal extent of the axis of rotation of the pulley to increase or decrease the extent of gripping force exerted by the surfaces on the belt or to increase or decrease the effective diameter of the pulley. [figure]