US PATENT SUBCLASS 474 / 108-- .~.~.~.~ To initiate relative axial movement of belt-engaging surfaces of guide roll or pulley

US PATENT SUBCLASS 474 / 108
.~.~.~.~ To initiate relative axial movement of belt-engaging surfaces of guide roll or pulley

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	DF	.~ With sensor for controlling operation of shifter to correct belt training deviation {3}
106	DF	.~.~ Sensor includes rotatable belt-engaging surface {1}
107	DF	.~.~.~ Rotatable on same axis as shiftable guide roll or pulley {1}
108		.~.~.~.~ To initiate relative axial movement of belt-engaging surfaces of guide roll or pulley

DEFINITION

Classification: 474/108

To initiate relative axial movement of belt-engaging surfaces of guide roll or pulley:

(under subclass 107) Subject matter wherein the guide roll* or pulley* includes belt*-engaging faces movable with respect to each other in a direction parallel to the longitudinal extent of the axis of the guide roll or pulley, and wherein said rotation of said detector member causes relative movement of said belt-engaging faces to return the belt to a central path of travel. [figure]