Industrial gas burner

Claim 1

AN INDUSTRIAL BURNER COMPRISING A RADIATION TUBE CONSTITUTED BY AN INNER TUBE PORTION AND AN OUTER TUBE PORTION, SAID OUTER TUBE PORTION COXIALLY SURROUNDING SAID INNER TUBE PORTION WITH INTERVENING CLEARANCE; A NOZZLE EXTENDING TRANSVERSELY ACROSS SAID INNER TUBE PORTION; FIRST INLET MEANS FOR ADMITTING A FUEL STREAM TO A CENTRAL REGION OF SAID NOZZLE; SECOND INLET MEANS FOR ADMITTING A COMBUSTION-SUSTAINING GAS TO AN ANNULAR REGION OF SAID NOZZLE SURROUNDING SAID CENTRAL REGION, SAID NOZZLE HAVING A CENTRAL APERTURE FOR THE PASSAGE OF SAID FUEL STREAM AND AT LEAST ONE CIRCULAR ARRAY OF ORIFICES FOR THE PASSAGE OF SAID GAS, THE AXES OF SAID ORIFICES BEING SKEW TO THE TUBE AXIS AND REPRESENTING STRAIGHT-LINE GENERATRICES OF A HYPERBOLOID OF REVOLUTION CENTERED ON THE TUBE AXIS, SAID INNER TUBE PORTION EXTENDING FORWARDLY FROM SAID NOZZLE FOR SEVERAL DIAMETERS THEREOF AND COMMUNICATING WITH SAID OUTER TUBE PORTION AT A LOCATION BEYOND THE GEOMETRICAL CENTER OF SAID HYPERBOLOID WHEREBY EXHAUST GASES FROM THE COMBUSTION OF A MIXTURE OF SAID FUEL STREAM WITH SAID COMBUSTION-SUSTAINING GAS CAN REACH SAID CLEARANCE; AND AN OUTLET FOR SAID EXHAUST GASES CONNECTED WITH SAID OUTER TUBE PORTION AT A POINT REARWARDLY OF SAID NOZZLE WHEREBY SAID EXHAUST GASES STREAM PAST SAID NOZZLE TOWARD SAID OUTLET.