Cooling arrangement for extrusion presses

Claim 1

IN AN EXTRUSION PRESS FOR EXTRUDING A METAL TUBE FROM A BILLET, IN COMBINATION, A PIERCING RAM, A COAXIAL DIE AND A BILLET CONTAINER MEMBER HAVING A BORE AXIAL WITH THE PIERCING RAM, SAID PIERCING RAM, DIE AND BILLET CONTAINER MEMBER FORMING PART OF THE EXTRUSION PRESS; A UNITARY COOLING AND EJECTING MEANS COOPERATING WITH SAID BILLET CONTAINER MEMBER AND PIERCING RAM FOR COOLING, AND PIERCING RAM AFTER A METAL TUBE IS EXTRUDED AND FOR SIMULTANEOUSLY EJECTING FROM SAID BILLET CONTAINER MEMBER THE PORTION OF A BILLET WHICH REMAINS THEREIN AFTER THE METAL TUBE IS EXTRUDED, SAID UNITARY MEANS INCLUDING AN ELONGATED TUBULAR HOUSING MEMBER MOVABLE TO AND FROM AN OPERATING POSITION LOCATED BETWEEN SAID PIERCING RAM AND BILLET CONTAINER MEMBER AND BEING COAXIAL WITH SAID PIERCING RAM IN SAID OPERATING POSITION, MEANS COMMUNICATING WITH SAID HOUSING MEMBER FOR CONVEYING A COOLING FLUID THERETO, SAID HOUSING MEMBER HAVING AN OPEN END DISTANT FROM SAID BILLET CONTAINER MEMBER IN THE OPERATING POSTION OF SAID UNITARY MEANS AND SAID PIERCING RAM BEING MOVABLE INTO SAID HOUSING MEMBER THROUGH SAID OPEN END THEREOF TO BE COOLED IN SAID HOUSING MEMBER, SAID HOUSING MEMBER HAVING A CUTOUT ADJACENT TO SAID OPEN END THEREOF THROUGH WHICH A COOLING FLUID ESCAPES FROM THE INTERIOR OF SAID HOUSING MEMBER, SAID HOUSING MEMBER HAVING AN EJECTOR END PORTION DIRECTED TOWARD SAID BILLET CONTAINER MEMBER WHEN SAID UNITARY MEANS IS IN SAID OPERATING POSITION THEREOF; AND MOVING MEANS COOPERATING WITH ONE OF SAID MEMBES FOR MOVING THE SAME AXIALLY ALONG THE OTHER OF SAID MEMBER SO THAT SAID BORE BECOMES OCCUPIED BY SAID HOUSING MEMBER TO HAVE A BILLET PORTION REMAINING IN SAID BORE EJECTED THEREFROM BY SAID EJECTOR END OF SAID HOUSING MEMBER SIMULTANEOUSLY WITH THE COOLING OF SAID PIERCING RAM.