Bicycle coaster brake

Claim 1

IN A BICYCLE COASTER BRAKE ASSEMBLY INCLUDING A SUPPORTING SHAFT, A DRIVE SPROCKET ROTATABLY SUPPORTED ON THE SHAFT AT ONE END THEREOF, AND A HUB ROTATABLY SUPPORTED ON THE DRIVE SPROCKET AT ONE END AND ON THE SHAFT AT THE OTHER END; THE IMPROVEMENT IN SAID HUB COMPRISING A FIRST CYLINDRICAL MEMBER HAVING ITS ONE END FLARED OUTWARDLY TO FORM A BALL RACE FOR THE RECEPTION OF BALL BEARINGS INTERPOSED BETWEEN SAID RACE AND THE SUPPORTING SHAFT, A SECOND CYLINDRICAL MEMBER TELESCOPICALLY FITTED OVER SAID FIRST MEMBER AND HAVING ITS ONE END ABUTTING SAID FLARED END OF THE FIRST MEMBER AND AT ITS OTHER END HAVING AN OUTWARDLY-EXTENDING FLANGE WITH SPOKE HOLES FORMED THEREIN, A THIRD CYLINDRICAL MEMBER TELESCOPICALLY FITTED OVER THE FLARED END FO THE FIRST CYLINDRICAL MEMBER AND A PORTION OF SAID SECOND CYLINDRICAL MEMBER, SAID THIRD CYLINDRICAL MEMBER HAVING ITS ONE END FLANGED INWARDLY TO AT LEAST PARTIALLY COVER THE BALL RACE FORMED IN SAID FIRST MEMBER AND AN OUTWARDLY-EXTENDING FLANGE AT ITS OTHER END WITH SPOKE HOLES FORMED THEREIN, AND A FOURTH CYLINDRICAL MEMBER ABUTTING THE INNER PERIPHERY OF SAID SECOND CYLINDRICAL MEMBER AT SAID OTHER END THEREOF AND HAVING ABALL RACE FORMED THEREIN FOR THE RECEPTION OF BALL BEARINGS INTERPOSED BETWEEN THE HUB AND SAID DRIVE SPROCKET.