Variable stator vanes

Claim 1

IN AN AXIAL FLOW COMPRESSOR OR TURBINE STATOR STRUCTURE COMPRISING: (A) INNER AND OUTER CONCENTRIC SHROUD MEMBERS FORMING AN ANNULAR PASSAGEWAY THEREBETWEEN, (B) A PLURALITY OF CIRCUMFERENTIALLY SPACED RADIALLY EXTENDING VANES TRAVERSING SAID ANNULAR PASSAGEWAY, (C) EACH OF SAID VANES HAVING AXIALLY SPACED LEADING AND TRAILING EDGE PORTIONS, (D) THE LEADING EDGE PORTIONS OF SAID VANES SECURED TO SAID INNER AND OUTER SHROUD MEMBERS TO FORM A FIXED RIGID STRUCTURE THEREWITH, (E) EACH OF SAID VANES HAVING A FLEXIBLE CONVEX WALL CONNECTING SAID LEADING AND TRAILING EDGE PORTINS, (F) A FIRST FLEXIBLE WALL SEGMENT CONNECTED TO SAID LEADING EDGE PORTION AND A SECOND RELATIVELY STIFF WALL SEGMENT CONNECTED TO SAID TRAILING EDGE PORTION, (G) SAID FIRST WALL SEGMENT OVERLAPPING SAID SECOND WALL SEGMENT TO FORM THEREWITH A CONTINUOUS CONCAVE WALL SURFACE JOINING SAID LEADING AND TRAILING EDGE PORTIONS, (H) SAID CONVEX WALL AND SAID FIRST AND SECOND WALL SEGMENTS DEFINING WITH SAID LEADING AND TRAILING EDGE PORTIONS AN ELONGATED RADIALLY EXTENDING CAVITY WITHIN EACH OF SAID VANES, (I) A PLURALITY OF ROTATABLE RODS EACH EXTENDING RADIALLY INTO ONE OF SAID VANE CAVITIES, (J) MEANS WITHIN EACH OF SAID CAVITIES JOINED TO SAID RODS FOR ROTATION THEREWITH AND CONNECTED TO BOTH SAID TRAILING EDGE PORTIONS AND SAID SECOND WALL SEGMENT SUCH THAT ROTATION OF SAID RODS CAUSES SUBSTANTIALLY UNIFORM CIRCUMFERENTIALLY MOVEMENT OF SAID TRAILING EDGE PORTIONS RELATIVE TO SAID LEADING EDGE PORTIONS, SAID MEANS SLIDABLY INTERCONNECTING SAID RODS AND SAID TRAILING EDGE PORTIONS, (K) AND MEANS CONNECTED TO SAID RODS FOR ROTATING SAID RODS TO CAUSE DESIRED MOVEMENT OF SAID TRAILING EDGE PORTIONS RELATIVE TO SAID FIXED LEADING EDGE PORTIONS.