Process of charging and exhausting gas from electric smelting furnaces

Claim 1

THE METHOD OF CHARGING AND OF EXHAUSTING GAS FROM AN OPEN ELECTRIC FURNACE OF THE TYPE USED FOR SMELTING AND THE LIKE HAVING AN UPPER ELECTRODE EXTENDING INTO THE OPENING OF A FURNACE POT AND HAVING A CYLINDRICAL HOUSING POSITIONED IN SPACED RELATIONSHIP AROUND SAID ELECTRODE WITH THE OPEN BOTTOM OF SAID HOUSING FACING THE OPENING OF SAID FURNACE POT, WHICH COMPRISES THE STEPS OF FEEDING CHARGE INTO THE ANNULAR SPACE BETWEEN THE HOUSING AND THE ELECTRODE, ADJUSTING THE RELATIVE HEIGHT OF THE BOTTOM EDGE OF THE HOUSING WITH RESPECT TO THE ELECTRODE, WITHOUT BRINING SAID BOTTOM EGDE INTO DIRECT CONTACT WITH THE FURNACE POT, SO THAT THE CHARGE FED INTO THE ANNULAR SPACE WILL COVER AND PRESS AGAINST A SUBSTANTIAL PORTION OF THE EXPOSED LOWER PORTION OF THE ELECTRODE DOWN TO THE LOWER END THEREOF, MAINTAINING AT LEAST ABOUT ONE-HALF OF THE CIRCUMFERENCE ALONG SAID BOTTOM EDGE OF SAID HOUSING IN SUBSTANTIALLY CONTINUOUS CONTACT WITH CHARGE WHICH HAS BEEN FED INTO SAID ANNULAR SPACE, AND EXHAUSTING GAS FROM THE HOUSING AS THE GAS MOVES UP THROUGH THE CHARGE COVERING THE ELECTRODE AND COLLECTS IN THE HOUSING, SAID GAS EXHAUSTION BEIN CARRIED OUT WITHOUT ARMOSPHERICALLY VENTING THE GAS IN THE VICINITY OF SAID HOUSING.

Claim 2

THE METHOD OF CHARGING AND OF EXHAUSTING GAS FROM AN OPEN ELECTRIC FURNACE OF THE TYPE USED FOR SMELTING AND THE LIKE HAVING AN UPPER ELECTRODE EXTENDING INTO THE OPENING OF A FURNACE POT AND HAVING A CYLINDRICAL HOUSING POSITIONED IN SPACED RELATIONSHIP AROUND SAID ELECTRODE WITH THE OPEN BOTTOM OF SAID HOUSING FACING THE OPENING OF SAID FURNACE POT, WHICH COMPRISES THE STEPS OF FEEDING CHARGE INTO THE ANNULAR SPACE BETWEEN THE HOUSING AND THE ELECTRODE, ADJUSTING THE RELATIVE HEIGHT OF THE BOTTOM EDGE OF THE HOUSING WITH RESPECT TO THE ELECTRODE, WITHOUT BRINING SAID BOTTOM EGDE INTO DIRECT CONTACT WITH THE FURNACE POT, SO THAT THE CHARGE FED INTO THE ANNULAR SPACE WILL COVER AND PRESS AGAINST A SUBSTANTIAL PORTION OF THE EXPOSED LOWER PORTION OF THE ELECTRODE DOWN TO THE LOWER END THEREOF, MAINTAINING AT LEAST ABOUT ONE-HALF OF THE CIRCUMFERENCE ALONG SAID BOTTOM EDGE OF SAID HOUSING IN SUBSTANTIALLY CONTINUOUS CONTACT WITH CHARGE WHICH HAS BEEN FED INTO SAID ANNULAR SPACE, AND EXHAUSTING GAS FROM THE HOUSING AS THE GAS MOVES UP THROUGH THE CHARGE COVERING THE ELECTRODE AND COLLECTS IN THE HOUSING, SAID GAS EXHAUSTION BEIN CARRIED OUT WITHOUT ARMOSPHERICALLY VENTING THE GAS IN THE VICINITY OF SAID HOUSING.