Jet engine thrust reversers

Claim 1

A JET ENGINE ASSEMBLY COMPRISING A JET ENGINE, A FINAL PROPULSION NOZZLE THEREFOR, THRUST REVERSER MEMBERS PIVOTALLY MOUNTED ON A PORTION OF SAID NOZZLE AT THEIR DOWNSTREAM ENDS, MEANS FOR PIVOTING THE THRUST REVERSER MEMBERS ABOUR THEIR DOWNSTREAM ENDS BETWEEN AN INOPERATIVE POSITION, IN WHICH THEY FORM A PART OF THE INNER WALL OF THE SAID NOZZLE PORTION PAST WHICH THE EXHAUST GASES FLOW REARWARDLY, AND AN OPERATIVE POSITION, IN WHICH THE UPSTREAM ENDS OF SAID THRUST REVERSER MEMBERS ARE IN CONTACT WITH EACH OTHER, AND THEY BLOCK THE NOZZLE, A FORWARDLY DIRECTED GAS FLOW PASSAGE COMMUNICATING WITH THE SAID NOZZLE PORTION, A GUIDE MEMBER HAVING ITS DOWNSTREAM END PIVOTALLY CONNECTED TO A THRUST REVERSER MEMBER INTERMEDIATE THE ENDS THEREOF AND HAVING ITS UPSTREAM PORTION SLIDABLY CONNECTED TO THE NOZZLE BY A PIN AND SLOT CONNECTION, AND MOVABLE IN UNISON WITH THE THRUST REVERSER MEMBER BETWEEN AN INOPERATIVE POSITION IN WHICH IT BLOCKS ONLY A PORTION OF THE OUTER END OF THE GAS FLOW PASSAGE AND AN OPERATIVE POSITION IN WHICH IT FORMS A FORWARDLY DIRECTED WALL, AT LEAST ONE GUIDE VANE CARRIED BY SAID NOZZLE, AND MEANS FOR MOVING SAID GUIDE VANE IN UNISON WITH THE THRUST REVERSER MEMBERS AND SAID GUIDE MEMBER BETWEEN INOPERATIVE AND OPERATIVE POSTIONS IN WHICH THE GUIDE VANE RESPECTIVELY BLOCKS THE REMAINING PORTION OF THE OUTER END OF SAID PASSAGE AND PROVIDED A FORWARDLY DIRECTED SURFACE THEREIN.