US PATENT SUBCLASS 474 / 113
.~ Pulley shifter

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}
113.~ Pulley shifter {4}
114  DF  .~.~> Pulley on shaft of adjustably mounted drive motor {1}
116  DF  .~.~> Pulley is vehicle drive pulley (e.g., bicycle sprocket, etc.)
117  DF  .~.~> Spring biased in belt-tensioning direction
118  DF  .~.~> Pulley shiftable into engagement with exterior of belt surface

DEFINITION

Classification: 474/113

Pulley shifter:

(under subclass 101) Subject matter wherein said device is operatively associated with a pulley* for changing the position of the pulley relative to a belt*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77, and 79, for devices for shifting a pulley associated with a variable speed drive. [figure]