High temperature gas turbine nozzle partition

Claim 1

IN A HIGH TEMPERATURE TURBOMACHINE HAVING INNER AND OUTER CONCENTRIC ANNULAR MEMBERS FORMING CIRCUMFERENTIAL WALL PORTIONS OF A HIGH TEMPERATURE NOZZLE RING, AND OUTER CASING MEANS SURROUNDING AND SPACED FROM AT LEAST A PORTION OF THE NOZZLE RING TO DEFINE A COOLANT FLUID SUPPLY CHAMBER, THE COMBINATION OF: (A) A PLURALITY OF CIRCUMFERENTIALLY SPACED, RADIALLY EXTENDING NOZZLE PARTITIONS DISPOSED WITHIN THE ANNULAR SPACED DEFINED BETWEEN SAID INNER AND OUTER ANNULAR MEMBERS, ADJACENT NOZZLE PARTITIONS COOPERATING TO FORM HOT GAS NOZZLE PASSAGES, (B) EACH NOZZLE PARTITION COMPRISING A MAIN BODY PORTION OF CURVED CROSS-SECTION AND A SEPARATE LEADING EDGE MEMBER COMPRISING A SUBSTANTIALLY TUBULAR MEMBER HAVING A DOWNSTREAM PORTION IN SUBSTANTIALLY ABUTTING RELATION WITH THE ADJACENT LEADING EDGE PORTION OF SAID MAIN BODY PORTION, (C) EACH OF SAID TUBULAR LEADING EDGE MEMBERS EXTENDING FROM AN ANCHOR MEANS ON SAID INNER ANNULAR MEMBER THROUGH SAID OUTER ANNULAR MEMBER AND THROUGH SAID OUTER CASING MEANS, (D) EACH OF SAID TUBULAR LEADING EDGE MEMBERS INCLUDING MEANS TO PREVENT ITS ROTATION RELATIVE TO SAID ANNULAR MEMBERS, (E) EACH OF SAID TUBULAR LEADING EDGE MEMBERS HAVING A PLURALITY OF PORTS COMMUNICATING WITH SAID NOZZLE PASSAGES FOR THE PASSAGE OF A FILM OF COOLING AND INSULATING FLUID OVER A SURFACE PORTION OF SAID MAIN BODY PORTION, (F) EACH OF SAID TUBULAR LEADING EDGE MEMBERS HAVING A PORT COMMUNICATING WITH SAID COOLANT FLUID SUPPLY CHAMBER TO ADMIT COOLANT FLUID FROM SAID CHAMBER TO THE INTERIOR OF THE TUBULAR MEMBER, AND (G) AN END CAP MEANS ON SAID OUTER CASING DETACHABLY ENCLOSING T HE PROJECTING END PORTION OF EACH TUBULAR LEADING EDGE MEMBER WHEREBY THE LEADING EDGE MEMBER MAY BE WITHDRAWN FROM THE NOZZLE RING ASSEMBLY UPON REMOVAL OF SAID END CAP MEANS.