Variable pitch propeller mechanism

Claim 1

AN OUTBOARD MOTOR ASSEMBLY COMPRISING IN COMBINATION AN UPPER MOTOR HOUSING FOR CONTAINING A POWER SOURCE, MOUNTING BRACKET MEANS FOR MOUNTING SAID ASSEMBLY ON THE STERN OF A BOAT, A DRIVE SHAFT HOUSING DEPENDING FROM SAID MOTOR HOUSING AND INCLUDING A DEPENDING DRIVE SHAFT TERMINATING THEREBENEATH, AN UNDERWATER UNIT INCLUDING A HOUSING AT THE LOWER END OF SAID DRIVE SHAFT HOUSING AND DISPOSED NORMAL THERETO AND INCLUDING A CENTRAL SECTION INTO WHICH SAID DRIVE SHAFT EXTENDS, A TUBULAR DRIVE SHAFT DISPOSED NORMAL TO AND OPERATIVELY CONNECTED TO SAID FIRST MENTIONED DRIVE SHAFT AND JOURNALED FOR ROTATION ABOUT ITS LONGITUDINAL AXIS IN SAID CENTRAL PORTION, A SPINNER AT ONE END OF SAID CENTRAL SECTION AND SECURED TO ONE END OF SAID TUBULAR DRIVE SHAFT FOR ROTATION THEREWITH, RADIAL BLADE MEANS JOURNALED FOR ROTATION ON SAID SPINNER NORMAL TO THE AXIS OF ROTATION THEREOF, A TUBULAR TORQUE SHAFT OPEN AT ONE END AND DISPOSED AXIALLY WITHIN SAID TUBULAR DRIVE SHAFT FOR ROTATION ABOUT ITS LONGITUDINAL AXIS, SAID TORQUE SHAFT INCLUDING ONE END PROJECTING INTO SAID SPINNER AND OPERATIVELY CONNECTED TO SAID BLADE MEANS FOR CHANGING THE PITCH THEREOF, SAID TORQUE SHAFT INCLUDING A LONGITUDINALLY EXTENDING, HELICAL CAM GROOVE EXTENDING THROUGH THE OPEN END THEREOF, A TAIL SECTION SECURED TO THE OTHER END OF SAID CENTRAL SECTION, FORCE TRANSMITTING MEANS HOUSED IN SAID TAIL SECTION AND INCLUDING A SHAFT PROJECTING INTO THE OPEN END OF SAID TORQUE SHAFT FOR AXIAL RECIPROCATION THEREIN, AND A CAM FOLLOWER JOURNALED ON THE SHAFT PROJECTING RADIALLY INTO SAID TUBULAR SHAFT AND ENGAGED IN SAID HELICAL CAM GROOVE WHEREBY AXIAL MOVEMENT OF SAID SHAFT OPERATED BY SAID FORCE TRANSMITTING MEANS IN SAID TAIL SECTION WILL CAUSE A CHANGE OF PITCH OF SAID BLADE MEANS.