Die bushing with removable liner

Claim 1

IN COMBINATION A DIE BUSHING WITH A REMOVABLE LINER COMPRISING A STEEL DIE BUSHING CONSISTING OF A CYLINDRICAL BODY AND AN AXIAL BORE HAVING A STEEL SURFACE PROVIDED WITH TWO OPPOSITELY LOCATED CIRCUMFERENTIAL GROOVES, A CYLINDRICAL LINER, FABRICATED FROM BIMETALLIC ELEMENTS OF BEARING METAL LAMINATED TO STEEL, SAID BEARING MEETAL FORMING THE INSIDE SURFACE OF SAID CYLINDRICAL LINER, SAID STEEL FORMING THE OUTSIDE SURFACE OF SAID CYLINDRICAL INER, A COATING OF NON-FERROUS METAL APPLIED TO SAID OUTSIDE SURFACE, SAID CYLINDRICAL LINER REMOVBLY SECURED IN SAID AXIAL BORE WITH SAID NON-FERROUS METAL COATING SEPARATING THE STEEL SURFACE OF SAID AXIAL BORE FROM THE STEEL SURFACE OF SAID LINER, TWO SNAP RINGS, ONE FOR EACH CIRCUMFERENTIAL GROOVE, REMOVABLY SECURED IN THE RESPECTIVE CIRCUMFERENTIAL GROOVE TO REMOVABLY SECURE SAID LINER IN SAID AXIAL BORE, A COLLAR PROVIDED WITH AN AXIAL PASSAGEWAY AND A SHELF COMPRISING A CYLINDRICAL WALL, AND A WIPING RING PROVIDED WITH A FLEXIBLE TONGUE HOUSED ON SAID SHELF WITH SAID FLEXIBLE TONGUE OVERLYING SAID A XIAL PASSAGEWAY AND MEANS TO REMOVABLY SECURE SAID COLLAR TO SAID DIE BUSHING WITH SAID AXIAL PASSAGEWAY AXIALLY ALIGNED WITH SAID AXIAL BORE.