Variable angular velocity coupling for reciprocating devices

Variable diameter pulley

Variable diameter pulley with improved pusher ring

Variable diameter pulley with means for changing wear pattern on

Variable diameter pulley with shim means compensating for belt w

Variable diameter torque sensing drive

Variable drive

Variable drive bicycle transmission

Variable drive for a harvester functional element

Variable drive pulley construction

Variable face width gearing

Variable gear assembly and method

Variable gear ratio chain drive system for bicycles

Variable gear transmission

Variable gear transmission system

Variable leverage gearing

Variable loading roller

Variable lock differential

Variable mechanical advantage torque arm

Variable output transmission