Means for actuating a friction pad in a disc brake

Claim 1

IN A VEHICLE BRAKE INCLUDING A ROTATABLE BRAKING MEMBER AND AT LEAST ONE FRICTION ELEMENT HAVING A REAR SIDE AND A FRONT SIDE ADAPTED TO BE URGED INTO BRAKING ENGAGEMENT WITH SAID ROTATABLE MEMBER, MEANS FOR APPLYING THE FRICTION ELEMENT TO THE ROTATABLE MEMBER COMPRISING A RIGID LEVER, A FULCRUM ABOUT WHICH SAID LEVER IS ANGULARLY MOVABLE, ACTUATING MEANS OPERATING ON SAID LEVER ON ONE SIDE OF SAID FULCRUM FOR EFFECTING MOVEMENT THEREOF ABOUT SAID FULCRUM IN A BRAKE APPLYING DIRECTION, A THRUST MEMBER HAVING AN INNER END AND AN OUTER END, AND MEANS INTERPOSED BETWEEN THE INNER END OF SAID THRUST MEMBER AND THE REAR SIDE OF SAID FRCTION ELEMENT FOR ROCKINGLY SUPPORTING THE INNER END OF SAID THRUST MEMBER FOR ANGULAR MOVEMENT OF SAID MEMBER ABOUT A SUBSTANTIALLY FIXED POINT RELATIVE TO THE REAR SIDE OF THE FIXED ELEMENT, SAID LEVER INCLUDING A SHAPED PART ON THE SIDE OF SAID LEVER ADJACENT SAID THRUST MEMBER AND DIRECTLY ENGAGING THE OUTER END OF SAID THRUST MEMBER, SAID PART BEING CONSTRUCTED AND ARRANGED THAT DURING AT LEAST A PART OF THE MOVEMENT OF SAID LEVER ABOUT THE FULCRUM IN A BRAKE APPLYING DIRCECTION SAID SHAPED PART HAS ROLLING ENGAGEMENT WITH THE OUTER END OF SAID THRUST MEMBER AND THE LATTER IS ROCKED TRANSVERSELY TO THE LINE ACTION OF THE LEVER ON THE THRUST MEMBER.