Gas burner structure

Claim 1

A BURNER FOR MIXING FUEL GAS AND OXYGEN CONTAINING GAS AND BURNING SAID FUEL GAS IN HEATING RELATION TO A FURNACE CHAMBER, COMPRISING, IN COMBINATION, A BURNER HOUSING CONSTRUCTED TO BE MOUNTABLE IN SAID FURNACE CHAMBER, OXYGEN CONTAINING GAS CONDUIT MEANS MOUNTED IN SAID HOUSING AND EXTENDING THERETHROUGH AND CONSTRUCTED TO RECEIVE OXYGEN CONTAINING GAS IN AN INLET PORTION AND WHEN MOUNTED IN HEATING RELATION TO SAID FURNACE CHAMBER DISCHARGE A PORTION OF SAID OXYGEN CONTAINING GAS INTO SAID FURNACE CHAMBER FROM AN OUTLET END PORTION FOR SECONDARY COMBUSTION, WALL MEANS POSITIONED BETWEEN SAID HOUSING AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS UPSTREAM FROM SAID OUTLET END PORTION OF SAID OXYGEN CONTAINING GAS CONDUIT MEANS AND FORMING WITH SAID HOUSING AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS A RECESSED PRIMARY COMBUSTION CHAMBER WITH THE OUTLET THEREOF AT SAID OUTLET END PORTION OF SAID OXYGEN CONTAINING GAS CONDUIT MEANS, SAID PRIMARY COMBUSTION CHAMBER BEING FREE OF FLUID FLOW CONSTRICTION BETWEEN THE INLET AND SAID OUTLET THEREOF, PORTS IN SAID WALL MEANS, SECOND WALL MEANS POSITIONED BETWEEN SAID HOUSING AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS UPSTREAM OF SAID FIRST-NAMED WALL MEANS AND DEFINING WITH SAID FIRSTNAMED WALL MEANS, SAID HOUSING AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS, AN AIR CHAMBER, A PASSAGEWAY BETWEEN SAID OXYGEN CONTAINING GAS CONDUIT MEANS AND SAID AIR CHAMBER, VALVE MEANS MOUNTED RELATIVE TO SAID OXYGEN CONTAINING GAS CONDUIT MEANS POSITIONED AND OPERABLE TO VARY THE SIZE OF SAID PASSAGEWAY BETWEEN SAID AIR CHAMBER AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS, THIRD WALL MEANS BETWEEN SAID HOUSING AND SAID AIR CONDUIT MEANS POSITIONED UPSTREAM OF SECOND WALL MEANS AND DEFINING WITH SAID SECOND WALL MEANS, SAID HOUSING AND SAID OXYGEN CONTAINING GAS CONDUIT MEANS, GAS MANIFOLD MEANS, SAID SECOND WALL MEANS HAVING MEANS THEREWITH IN COMMUNICATION WITH SAID GAS MANIFOLD MEANS TO PASS FUEL GAS THERETHROUGH TO SAID AIR CHAMBER TO BE DELIVERED TO SAID PRIMARY COMBUSTION CHAMBER THROUGH SAID PORTS IN SAID FIRST-NAMED WALL MEANS, AND MEANS WITH SAID INLET PORTION OF SAID OXYGEN CONTAINING GAS CONDUIT MEANS TO DELIVER OXYGEN CONTAINING GAS THERETO, SAID BURNER BEING CONSTRUCTED AND OPERABLE TO BURN FUEL GAS IN SAID COMBUSTION CHAMBER OF SAID BURNER IN A ZONE THEREIN REMOVED FROM SAID OUTLET OF SAID OXYGEN CONTAINING GAS CONDUIT MEANS AND TO DISCHARGE PARTIALLY COMBUSTED FUEL GAS INTO SAID FURNACE CHAMBER FOR MIXING WITH SECONDARY OXYGEN CONTAINING GAS AND FURTHER COMBUSTION IN SAID FURNACE CHAMBER.