Automatically alignable and connectible tool joint

Claim 1

IN A TOOL JOINT: A BOX MEMBER; A PIN MEMBER RECEIVABLE IN SAID BOX MEMBER; SAID PIN MEMBER HAVING A FIRST CYLINDRICAL PERIPHERAL SURFACE AT ITS OUTER END SECTION, A SECOND CYLINDRICAL PERIPHERAL SURFASCE OF A GREATER DIAMETER THAN SAID FIRST SURFACE SPACED LONGITUDINALLY THEREFROM, AND A THIRD PERIPHERAL TAPERED SURFACE TAPERING FROM SAID SECOND SURFACE TO SAID FRIST SURFACE; SAID BOX MEMBER HAVING A FIRST INNER CYLINDRICAL SURFACE AT ITS INNER SECTION CONFORMING TO SAID FIRST PERIPHERAL SURFACE, A SECON INNER CYLINDRICAL SURFACE AT ITS OUTER END SECTION CONFORMING TO SAID SECOND PHERIPHERAL SURFACE, AND A THIRD INNER TAPERED SURFACE TAPERING FROM SAID SECOND INNER SURFACED TO SAID FIRST INNER SURFACE AND CONFORMING TO SAID THIRD PERIPHERAL TAPERED SURFACE; SAID TAPERED SURFACES EACH BEING STEEPLY INCLINED TO THE RESPECTIVE AXES OF SAID PIN MEMBER AND BOX MEMBER AT A SELF-LOCKING ANGLE, SAID TAPERED SURFACES BEING SUBSTANTIALLY LONGER THAN SAID FIRST PERIPHERAL CYLINDRIAL SURFACE OF SAID PIN MEMBER AND SUBSTANTIALLY LONGER THAN SAID SECOND INNER CYLINDRICAL SURFACE OF SAID BOX MEMBER; ONE OF SAID MEMBERS HAVING LASTERALLY MOVABLE LOCK MEANS THEREON; SAID OTHER OF SAID MEMBERS HAVING LOCK RECEIVING MEANS THEREON FOR RECEIVING SAID LOCK MEANS UPON FULL RECEPTION OF SAID PIN MEMBER IN SAID BOX MEMBER TO LOCK SAID MEMBERS TOGTHER AGAINST RELATIVE LONGITUDINAL MOVEMENT WITH SAID FIRST, SECOND AND THIRD PERIPHERAL SURFACES WITHIN SAID FIRST, SECOND AND THIRD INNER SURFACES, RESPECTIVELY, THE AXIAL LENGTH OF THE FIRST INNER CYLINDRICAL SURFACE OF SAID BOX MEMBER BEING LESS THAN THE AXIAL LENGTH OF THE FIRST PERIPHERAL SURFACE OF SAID PIN MEMBER, WHEREBY SAID THIRD PERIPHERAL SURFACE IS RENDERED FREE FROM WEDGING CONTACT WITH SAID THIRD INNER SURFACE.