US PATENT SUBCLASS 474 / 56
.~.~ By actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis

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

47  DF  PULLEY WITH EXPANSIBLE RIM MEANS OR PULLEYS WITH ALTERNATELY USEABLE NESTABLE RIMS {2}
49  DF  .~ Structure for variably adjusting radius of rim section {5}
56.~.~ By actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis {1}
57  DF  .~.~.~> Collar interconnected with rim sections via pivoted link

DEFINITION

Classification: 474/56

By actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis:

(under subclass 49) Subject matter wherein the motion-inducing mechanism includes a ringlike member positioned around the axis of rotation of the pulley*, and rotatable around the pulley axis but fixed in regard to any movement in a direction parallel to the longitudinal extent of the pulley axis. [figure]