Overrunning clutch

Claim 1

A CLUTCH OF THE CLASS DESCRIBED COMPRISING AN INNER CYLINDRICAL MEMBER HAVING FLANGE MEANS AT ONE END PROVIDED WITH AN INWARDLY FACING ANNULAR SURFACE AND HAVING A BALL SCREW SECTION AT ITS OTHER END PROVIDED WITH EXTERNAL HELICAL GROOVE CONVOLUTIONS; AN OUTER MEMBER ON SAID INNER MEMBER HAVING AN OUTWARDLY FACING ANNULAR BEARING SURFACE AT ONE END IN CONTACT WITH SAID INWARDLY FACING BEARING SURFACE AND HAVING AN INWARDLY FACING ANNULAR CLUTCH FACE AT ITS OTHER END; ROLLER BEARING MEANS FOR ROTATABLY MOUNTING SAID OUTER MEMBER ON SAID INNER MEMBER; A BALL SCREW NUT CONCENTRICALLY ARRANGED ON SAID BALL SCREW SECTION AND HAVING INTERNAL HELICAL GROOVE CONVOLUTIONS COOPERATING WITH SAID EXTERNAL GROOVE CONVOLUTIONS TO PROVIDE A HELICAL PATH, SAID BALL SCREW NUT HAVING AN INWARDLY FACING ANNULAR CLUTCH FACE AT ONE END FOR ENGAGING SAID CLUTCH FACE OF SAID OUTER MEMBER AND HAVING A SLOT AT ITS OTHER END AND HAVING AN EXTERNAL FORMATION ADAPTED TO BE ENGAGED TO RESTRAIN ROTATION THEREOF; BALLS IN SAID PATH; MEANS AT THE ENDS OF SAID PATH FOR CONFINING SAID BALLS IN SAID PATH; A NUT MEMBER REMOVABLY SECURED TO THE OTHER END OF SAID OUTER MEMBER AND HAVING AN INWARDLY FACING ANNULAR ZONE OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING RECESSES; AND A CIRCULAR TORSION SPRING HAVING ITS INNER END POSITIONED IN SAID SLOT AND HAVING ITS OUTER END POSITIONED IN ONE OF SAID RECESSES TO PROVIDE A YIELDABLE DRIVING CONNECTION BETWEEN SAID NUT MEMBER AND SAID BALL SCREW NUT.