Rocket nozzle construction

Claim 1

IN A DISCHARGE NOZZLE ASSEMBLY FOR EXHAUSTING HOT GASES, THE COMBINATION COMPRISING AN INLET SECTION HAVING AN INLET PASSAGEWAY, AN OUTLET SECTION HAVING AN OUTLET PASSAGEWAY, A THROAT SECTION DISPOSED BETWEEN SAID INLET AND SAID OUTLET SECTIONS HAVING A THROAT PASSAGEWAY OF REDUCED CROSS SECTION COMMUNICATING SAID PASSAGEWAYS IN SAID INLET AND SAID OUTLET SECTIONS, ONE OF SAID SECTIONS HAVING A PLURALITY OF AXIALLY SPACED RADIALLY INNER ENDS THE LAMINATIONS DEFINING AT THEIR RAIDALLY INNER ENDS THE CONTOUR OF THE PASSAGEWAY THROUGH SAID ONE OF SAID SECTIONS, EACH OF SAID LAMINATIONS TERMINATING AT THEIR RADIALLY INNER ENDS IN AN AXIALLY OUTWARDLY EXTENDING, RADIALLY INWARDLY TAPERING, ANNULAR LIP PORTIONG WITH EACH SAID LIP PORTION DISPOSED IN PARTIAL OVERLAPPING RELATIONSHIP PROXIMATE SAID LIP PORTION OF THE ADJACENT ONE OF SAID LAMINATIONS, AND VAPOR FORMING MEANS DISPOSED BETWEEN ADJACENT ONES OF SAID LAMINATIONS FOR ABSORBING HEAT INCIDENT AT THE PASSAGEWAY OF SAID ONE OF SAID SECTIONS DURING VAPORIZATION AT A PRESELECTED TEMPERATURE.