Universal joints

Claim 1

A CONSTANT VELOCITY UNIVERSAL JOINT COMPRISING INNER AND OUTER JOINT MEMBERS HAVING COOPERATING ARCUATE BALL TRACKS IN WHICH ARE LOCATED TORQUE TRANSMITTING BALLS, MEANS RETAINING SAID INNER AND OUTER JOINT MEMBERS IN ASSEMBLED RELATIONSHIP, SAID ARCUATE BALL TRACKS IN THE INNER AND OUTER JOINT MEMBERS BEING RESPECTIVELY CENTERED ABOUT DIFFERENT POINTS WHICH ARE BOTH SPACED FROM AND LOCATED ON OPPOSITE SIDES OF THE JOINT CENTRE ON THE JOINT AXIS IN THE CONDITION OF ZERO JOINT ANGLE SO THAT THE BASES OF EACH PAIR OF TRACKS CONVERGE AS SEEN IN CROSS SECTION, WHEREBY THE RESULTANT TRACK CONVERGENCE IN USE URGES THE BALLS ON ONE AXIAL DIRECTION, AND INCLUDING A WALL MEMBER SECURED TO SAID OUTER JOINT MEMBER AND AFFORDING A PLANE SURFACE PERPENDICULAR TO THE AXIS OF SAID OUTER JOINT MEMBER, A GUIDE MEMBER WHICH IS ARRANGED TO SLIDE ON SAID PLANE SURFACE AND WHICH ACTS ON THE BALLS TO URGE THE BALLS IN THE AXIAL DIRECTION OPPOSITE TO SAID ONE DIRECTION TO LOCATE THE BALLS AXIALLY IN RELATION TO THE SAID OUTER JOINT MEMBER, AND GUIDE MEANS CONNECTED TO SAID INNER JOINT MEMBER AND ENGAGING SAID GUIDE MEMBER TO POSITION OF THE LATTER IN ACCORDANCE WITH THE RELATIVE ANGULARITY OF THE INNER AND OUTER JOINT MEMBERS, AND THUS MAINTAIN THE BALLS IN THE MEDIAN PLANE OF THE JOINT.