Cathode mount and method of fabrication

Claim 1

IN CATHODE MOUNT COMPRISING TWO METAL TUBULAR MEMBERS DISPOSED IN COAXIAL AND PARTLY CONCENTRIC RELATION, SAID MEMBERS HAVING ONE GROUP OF AXIALLY COEXTENSIVE END PORTIONS, MEANS INSULATINGLY FIXING SAID END PORTIONS WITH RESPECT TO EACH OTHER, SAID MEMBERS HAVING ANOTHER GROUP OF AXIALLY SPACED END PORTIONS, THE AXIALLY SPACED END PORTION OF THE INNER OF SAID MEMBERS BEING RADIALLY ENLARGED SO AS TO HAVE AN OUTER DIAMETER EQUAL TO THE OUTER DIAMETER OF THE AXIALLY SPACED END PORTION OF THE OUTER OF SAID MEMBERS, THE IMPROVEMENT COMPRISING THE COMBINATION OF A TUBULAR WIRE MESH CATHODE HAVING A BASE MADE OF TUNGSTEN HAVING AN INNER DIAMETER SUBSTANTIALLY EQUAL TO SAID OUTER DIAMETER AND TELESCOPED INTO ENGAGEMENT WITH SAID AXIALLY SPACED END PORTIONS, AND BODIES OF MOLYBDENUM METAL SUBSTANTIALY ENTIRELY WITHIN EACH OF THE INTERSTICES DEFINED BY THE PORTIONS OF SAID MESH IN ENGAGEMENT WITH SAID AXIALLY SPACED END PORTIONS, SAID WIRE MESH HAVING OUTER SURFACE REGIONS DEFINING THE NORMAL OUTER CONTOUR OF SAID CATHODE, SAID OUTER REGIONS OF SAID MESH PORTIONS BEING SPACED FROM SAID METAL BODIES SAID BODIES OF METAL BEING IN ADHESIVE ENGAGEMENT WITH SAID SPACED END PORTIONS AND WITH THE SIDES OF SAID WIRES OF SAID MESH DEFINING SAID INTERSTICES.