US PATENT SUBCLASS 474 / 31
.~.~.~ By dual lever mechanism

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

8  DF  PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) {13}
29  DF  .~ Including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment {1}
30  DF  .~.~ For axial adjustment of each member on each pulley {1}
31.~.~.~ By dual lever mechanism

DEFINITION

Classification: 474/31

By dual lever mechanism:

(under subclass 30) Subject matter wherein the motion-inducing member includes a pair of arms each mounted for pivotal movement about its own axis; and wherein one of the arms is connected to one of the movable belt*-engaging components on each of the spaced pulleys*, and the other arm is connected to the other of the belt-engaging components on each of the spaced pulleys, so that simultaneous pivoting of the arms causes concurrent adjustment of each pair of belt-engaging components on each pulley. [figure]