Dual drive control clutch

Claim 1

A CLUTCH OF THE TYPE DESCRIBED, COMPRISING ROTATABLE DRIVER AND DRIVEN MEMBERS IN COAXIALLY TELESCOPED, RADIALLY SPACED RELATION TO ONE ANOTHER AND PROVIDING MUTUALLY FACING CYLINDRICAL RACE SURFACES, A SERIES OF SPRAGS DISPOSED IN THE ANNULAR SPACE BETWEEN SAID SURFACES FOR RELEASABLE WEDGING AND NON-WEDGING ENGAGEMENTS, RESPECTIVELY, THEREBETWEEN IN DRIVING AND NON-DRIVING PHASES OF OPERATION OF THE CLUTCH, AN ANNULAR DRIVE COUPLING MEMBER HAVING CIRCUMFERENTIALLY SPACED CROSS PIECES DEFINING END LIMITS OF OPENINGS RECEIVING ENDS OF SAID SPRAGS ADJACENT ONE OF SAID RACES, AND MEANS RESILIENTLY BIASING THE SPRAGS IN A DIRECTION TO INTERRUPT WEDGING ENGAGEMENT OF THE SPRAGS WITH SAID LAST NAMED RACE, SAID CROSS PIECES OF SAID DRIVE COUPLING MEMBER BEING ENGAGEABLE WITH THE SPRAGS TO URGE THE SAME INTO SAID WEDGING ENGAGEMENT, SAID COUPLING MEMBER HAVING AN ANNULAR, GENERALLY RADIALLY EXTENDING FRICTION SURFACE, MEANS PROVIDING A NONROTATIVE ANNULAR AND GENERALLY RADIALLY EXTENDING FRICTION SURFACE AXIALLY ADJACENT SAID COUPLING MEMBER FRICTION SURFACE, SAID FRICTION SURFACES BEING IN FRICTIONAL ENGAGEMENT WITH ONE ANOTHER, THUS TO URGE SAID COUPLING MEMBER CROSS PIECES AGAINST SAID SPRAGS, AND TO WEDGE THE SPRAGS AGAINST SAID LAST NAMED RACE IN A DRIVING PHASE.