US PATENT SUBCLASS 474 / 23
.~ Adjusted by power from pulley drive train

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}
23.~ Adjusted by power from pulley drive train

DEFINITION

Classification: 474/23

Adjusted by power from pulley drive train:

(under subclass 8) Subject matter wherein an auxiliary device is constantly rotated during rotation of the pulley* by the same source which causes rotation of the pulley, and such device supplies the force for relative adjustment of the pulley components.

(1) Note. The auxiliary device may be separated from the pulley or may be a component integrally connected to, or forming a part of, the pulley.

(2) Note. For a patent to be placed herein a human operator may selectively initiate the adjustment such as by selective clutch engagment, but the auxiliary device provides the sole actuating force. If a human operator provides the actuating force, even though such force may be multiplied as through levers, screws, etc., the patent is placed in subclasses below such as 29+ or 37+. [figure]