One-way brake assembly and seal means therefor

Claim 1

A ONE-WAY BRAKE ASSEMBLY COMPRISNG AN INNER MEMBER HAVING A GENERALLY CYLINDRICAL SURFACE FORMING AN INNER RACE, SAID INNER MEMBER BEING ADAPTED TO BE MECHANICALLY COUPLED TO A SHAFT DISPOSED ON THE AXIS THEREOF, AND AN OUTER MEMBER HAVING A CYLINDRICAL OPENING THEREIN FORMING AN OUTER RACE, MEANS FOR ROTATABLY MOUNTING THE OUTER MEMBER COAXIALLY ABOUT THE INNER MEMBER WITH THE OUTER RACE CONFRONTING AND SPACED FROM THE INNER RACE A PLURALITY OF DRIVE ELEMENTS DISPOSED BETWEEN THE INNER RACE AND OUTER RACE, ROTATIONAL TORQUE APPLIED BETWEEN THE INNER AND OUTER MEMBERS IN ONE DIRECTION WEDGING THE DRIVE ELEMENTS BETWEEN THE RACES AND TORQUE IN THE OTHER DIRECTION RELEASING THE DRIVE ELEMENTS TO PERMIT ROTATION OF THE INNER AND OUTER MEMBERS RELATIVE TO EACH OTHER, A FIRST AND A SECOND SEALING RING DISPOSED COAXIALLY WITH THE RACES AT OPPOSITE ENDS OF THE INNER MEMBER, THE FIRST OF SAID SEALING RINGS BEING DISPOSED BETWEEN ONE END OF THE OUTER MEMBER AND THE CONFRONTING END OF THE INNER MEMBER TO FORM A FLUID TIGHT SEAL AND THE SECOND OF SAID SEALING RINGS BEING DISPOSED BETWEEN THE OTHER ENDOF THE OUTER MEMBER AND THE CONFRONTING END OF THE INNER MEMBER TO FORM A FLUID TIGHT SEAL THEREBETWEEN, A THIRD AND A FOURTH SEALING RING DISPOSED COAXIALLY ABOUT THE INNER MEMBER ON OPPOSITE SIDES OF THE DRIVE ELEMENTS, SAID THIRD SEALING RING FORMING A FLUID TIGHT SEAL BETWEEN THE FIRST SEALING RING AND THE DRIVE ELEMENTS AND THE FOURTH SEALING RING FORMING A FLUID TIGHT SEAL BETWEEN THE SECOND SEALING RING AND THE DRIVE ELEMENTS, MEANS FOR INTRODUCING A FIRST LUBRICANT BETWEEN THE THIRD AND FOURTH SEALING RINGS, MEANS FOR INTRODUCING A SECOND LUBRICANT BETWEEN THE FIRST AND THIRD SEALING RINGS, AND MEANS FOR INTRODUCING SAID SECOND LUBRICANT BETWEEN THE SECOND AND FOURTH SEALING RINGS.