Apparatus for melting powdered material by means of a flame elevated temperature

Claim 1

IN APPARATUS FOR MELTING POWDERED MATERIAL BY MEANS OF A FLAME OF ELEVATED TEMPERATURE AND FOR PRECIPITATING SAID MOLTEN MATERIAL IN THE FORM OF A ROD, INCLUDING A BURNER COMPRISING TWO CONCENTRIC TUBES, MEANS TO SUPPLY COMBUSTIBLE GAS TO THE OUTER OF SAID TUBES, A CATCHING SURFACE ADJACENT AND IN VERTICAL AXIAL ALIGNMENT WITH SAID BURNER FOR PRECIPITATED MATERIAL, MEANS TO MOVE SAID CATCHING SURFACE AWAY FROM THE BURNER IN A VERTICAL DIRECTION, POWDER DOSING MEANS INCLUDING A CLOSED VESSEL HAVING A PERFORATE BOTTOM SURFACE, MEANS TO SUPPLY POWDER TO THE INTERIOR OF SAID VESSEL, MEANS TO SUPPLY OXYGEN UNDER PRESSURE TO THE BOTTOM OF SAID SUPPLY OF POWDER BELOW SAID PERFORATE SURFACE IN THE VESSEL TO CREATE A FLUIDIZED BED OF POWDER, CONDUIT MEANS CONNECTING AN UPPER REGION OF SAID FLUIDIZED BED OF POWDER WITH SAID INNER BURNER TUBE TO INJECT SAID POWDER INTO SAID FLAME, AND A COMMON OXYGEN SOURCE HAVING TWO OUTLET PIPES AND PROPORTIONING VALVE MEANS, ONE OF SAID OUTLET PIPES BEING IN COMMUNICATION WITH SAID INNER BURNER TUEBE ABOVE THE FLUIDIZED BED OF POWDER, THE OUTER OUTLET PIPE BEING IN COMMUNICATION WITH THE UNDER SIDE OF THE FLUIDIZED BED,