US PATENT SUBCLASS 474 / 102
.~ With sensor for controlling operation of shifter to correct belt training deviation

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

101  DF  MEANS FOR ADJUSTING BELT TENSION OR FOR SHIFTING BELT, PULLEY OR GUIDE ROLL {11}
102.~ With sensor for controlling operation of shifter to correct belt training deviation {3}
103  DF  .~.~> Shifter driven by electrical or fluid motor {1}
105  DF  .~.~> Sensor actuates pawl-and-rachet mechanism to operate shifter
106  DF  .~.~> Sensor includes rotatable belt-engaging surface {1}

DEFINITION

Classification: 474/102

With sensor for controlling operation of shifter to correct belt training deviation:

(under subclass 101) Subject matter provided with auxiliary means which detects deviation of a belt* from a desired path of travel on a pulley*; and, in repsonse to such detection, actuates said device for returning the belt to the desired path of travel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, 6, 80+, 83, and 122+, for other structure involving lateral shift of a belt such as for reversing the direction of rotation of a load driving member, for causing a change in

speed ratio, for removing a belt from a pulley or for correcting belt training deviation.

SEE OR SEARCH CLASS

162, Paper Making and Fiber Liberation,

257, for automatic control of transverse movement of an endless band forming mold.

198, Conveyors: Power-Driven, 806+, for automatic control of conveyor belt training deviation.

226, Advancing Material of Indeterminate Length,

15+, for automatic control of devices to position advancing material laterally. [figure]