Freewheel hub with back-pedaling brake

Claim 1

A FREEWHEELING HUB COMPRISING, IN COMBINATION: (A) AN AXLE HAVING AN AXIS; (B) A DRIVER MEMBER MOUNTED ON ONE AXIAL PORTION OF SAID AXLE FOR FORWARD ROTATION AND FOR BACKWARD ROTATION; (C) AN ANNULAR BEARING MEMBER FIXEDLY MOUNTED ON ANOTHER AXIAL PORTION OF SAID AXLE; (D) A SLEEVE MEMBER ROTATABLY MOUNTED ON SAID DRIVER MEMBER AND ON SAID BEARING MEMBER AND ENCLOSING RESPECTIVE PORTIONS OF SAID DRIVER MEMBER AND OF SAID BEARING MEMBER; (E) MOTION TRANSMITTING MEANS OPERATIVELY INTERPOSED BETWEEN SAID DRIVER MEMBER AND SAID SLEEVE MEMBER FOR SELECTIVELY TRANSMITTING ROTARY MOVEMENT OF SAID DRIVER MEMBER TO SAID SLEEVE MEMBER DURING FORWARD ROTATION OF SAID DRIVER MEMBER; (F) AN EXPANDABLE BRAKE SHELL MOUNTED IN SAID SLEEVE MEMBER, SAID SHELL INCLUDING A PLURALITY OF AXIALLY ELONGATED RESILIENT BLADES NORMALLY SPACED FROM SAID SLEEVE MEMBER AND RESILIENTLY MOVABLE INTO FRICTIONAL ENGAGEMENT THEREWITH BY EXPANSION OF SAID SHELL; AND (G) BRAKE ACTUATING MEANS RESPONSIVE TO BACKWARD ROTATION OF SAID DRIVER MEMBER FOR EXPANDING SAID SHELL, (1) SAID ACTUATING MEANS INCLUDING AN ACTUATING MEMBER OPERATIVELY CONNECTED TO SAID DRIVER MEMBER FOR TRANSLATIONAL MOVEMENT IN SAID SLEEVE MEMBER RELATIVE TO SAID BEARING MEMBER IN RESPONSE TO SAID BACKWARD ROTATION OF THE DRIVER MEMBER, SAID BEARING MEMBER AND SAID ACTUATING MEMBER CONSTITUTING A PAIR OF MEMBERS, (2) SAID BRAKE SHELL BEING INTEGRAL WITH ONE MEMBER OF SAID PAIR, AND SAID BLADES THEREOF LONGITUDINALLY EXTENDING FROM SAID ONE MEMBER IN A COMMON DIRECTION TOWARD SAID OTHER MEMBER, (3) SAID BLADES JOINTLY DEFINING A SUBSTANTIALLY CONICAL OUTER SURFACE OF SAID SHELL IN THE RELAXED CONDITION OF SAID BLADES, SAID SURFACE TAPERING IN SAID COMMON DIRECTION, AND (4) SAID BLADES BEING ENGAGED BY THE OTHER MEMBER OF SAID PAIR FOR EXPANSION OF SAID SHELL DURING SAID TRANSLATIONAL MOVEMENT.