Deflecting means for jet aircraft and the like

Claim 1

A DEFLECTOR ASSEMBLY FOR CONTROLLING AND DEFLECTING THE EXHAUST GASES FROM AN AIRCRAFT JET ENGINE COMPRISING: AN ELONGATED DUCT ADAPTED TO CONVEY THE EXHAUST GASES FROM SAID ENGINE; SAID DUCT HAVING FORE AND AFT ENDS PROVIDING MEANS FOR THE INGRESS AND EGRESS, RESPECTIVELY, OF THE EXHAUST GASES AND AN AXIS EXTENDING PARALLEL TO THE LONGITUDINAL EXTENT OF SAID DUCT; A PLURALITY OF FIXED VANES THAT ARE GENERALLY WEDGE-SHAPED IN CROSS-SECTION; SAID FIXED VANES BEING MOUNTED AS A CASCADE IN HORIZONTAL AND VERTICAL SPACED RELATION AT THE AFT END OF SAID DUCT WITH THE BLUNT EDGES THEREOF HAVING A DOWNSTREAM RELATION WITH RESPECT TO EXHAUST GASES FLOWING THROUGH SAID DUCT; A PLURALITY OF INDIVIDUAL MOVABLE VANES; SAID MOVABLE VANES BEING WEDGE-SHAPED IN CROSS-SECTION; A MOVABLE VANE BEING ATTACHED TO EACH OF SAID FIXED VANES WITH THE BLUNT EDGES OF SAID MOVABLE VANES BEING IN CONTACTING RELATION WITH THE BLUNT EDGES OF SAID FIXED VANES; AND MEANS ADAPTED TO SIMULTANEOUSLY PIVOTALLY MOVE SAID MOVABLE VANES IN THE SAME DIRECTION AT DIFFERENTIAL SPEEDS THROUGH AN ANGULAR RANGE BETWEEN INITIAL AND FINAL POSITIONS IN WHICH THE LATTER VANES COOPERATE WITH SAID FIXED VANES TO DEFINE CONVERGENT-DIVERGENT NOZZLES AT SUCH TIME AS SAID MOVABLE VANES ARE LOCATED IN SAID INITIAL AND FINAL POSITIONS AND POSITIONS IMMEDIATELY ADJACENT THERETO AND CONVERGENT NOZZLES AT SUCH TIME AS SAID MOVABLE VANES ARE LOCATED IN OTHER POSITIONS THROUGHOUT SAID ANGULAR RANGE.