Friction hinge

Claim 1

A FRICTION HING ASSEMBLY COMPRISING MALE AND FEMALE HINGE MEANS, SAID MALE HINGE MEANS COMPRISING A CYLINDRICAL HINGE PIN, SAID FEMALE HINGE MEANS INCLUDING A FEMALE HINGE MEMBER HAVING A BORE FORMED THEREIN ADAPTED TO TELESCOPICALLY RECEIVE SAID HINGE PIN AND PROVIDING A PARTLY CYLINDRICAL BEARING SURFACE OF SUBSTANTIALLY THE SAME CURVATURE AS SAID PIN AND ADAPTED TO FRICTIONALLY ENGAGE SAME, SAID FEMALE HINGE MEANS ALSO INCLUDING A BEARING MEMBER ADAPTED TO BE SEATED IN SAID BORE OPPOSITE SAID BEARING SURFACE FOR ENGAGEMENT WITH SAID PIN, SAID BEARING MEMBER HAVING A GROOVE FORMED THEREIN OF SUBSTANTIALLY THE SAME CURVATURE AS SAID PIN AND ADAPTED TO FRICTIONALLY ENGAGE SAME, SAID BEARING MEMBER BEING MOVABLE IN SAID BORE TOWARD AND AWAY FROM SAID PIN, THERE BEING A THREADED OPENING FORMED IN SAID FEMALE MEMBER COMMUNICATING WITH THE EXTERIOR THEREOF AND INTERSECTING SAID BORE ON THE SIDE THEREOF OPPOSITE SAID BEARING SURFACE, AND A THREADED SCREW PLUG ADAPTED FOR INSERTION IN SAID OPENING AND THREADED ENGAGEMENT THEREWITH AND ADAPTED TO ENGAGE SAID BEARING MEMBER AND PRESS SAME AGAINST SAID PIN TO OBTAIN A DESIRED FRICTIONAL RESISTANCE BETWEEN SAID PIN AND SAID FEMALE AND BEARING MEMBERS, SAID PLUG HAVING A THREADED BORE, AND THREADED MEANS ADAPTED FOR INSERTION IN AND THREADED ENGAGEMENT WITH THE BORE OF SAID PLUG FOR ANCHORING SAID FEMALE HINGE MEMBER TO A SUPPORTING OBJECT.