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 | DF | .~ Pulley shifter {4} |
116 | .~.~ Pulley is vehicle drive pulley (e.g., bicycle sprocket, etc.) |