Coke oven structure

Claim 1

IN A REGENERATIVELY HEATED COKE OVEN BATTERY FORMED OF SILICA MASONRY COMPRISING HORIZONTAL COKING CHAMBERS EACH HAVING HEATING WALLS ON OPPOSITE SIDES THEREOF WITH VERTICAL FLUES DISPOSED IN A ROW ALONGSIDE THE COKING CHAMBERS AND OPERATIVELY DISPOSED FOR UPFLOW COMBUSTION AND DOWNFLOW OF CONBUSTION PRODUCTS IN ALTERATION, REGENERATORS AT A LEVEL BELOW THE BOTTOM OF THE COKING CHAMBERS AND HEATING WALLS AND COMMUNICATING WITH THE VERTICAL FLUES IN SAID HEATING WALLS; AND HORIZONTAL RICHFUEL GAS GUN CONDUITS EXTENDING FROM THE SIDE FACE OF THE BATTERY LENGTHWISE OF THE HEATING WALLS UNDER THE HEATING FLUES, IN THE MASONRY BETWEEN THE BOTTOM OF THE FLUES AND THE UPPERMOST PORTIONS OF THE REGENERATORS, SAID GAS GUN CONDUITS COMMUNICATING THROUGH MASONRY RISER CONDUITS AND PORTS DISTRIBUTED LONGITUDINALLY OF SAID GAS GUN CONDUITS, AND BEING OPERABLY DISPOSED IN PAIRS FOR INFLOW IN EACH CONDUIT OF A PAIR IN ALTERNATION WITH THE OTHER CONDUIT OF PAIR; AND JET MEANS FOR EACH GAS GUN CONDUIT OF A PAIR DISPOSED ALONG THE SIDE FACE OF THE BATTERY, AT THE OUTER END OF THE HEATING WALLS, OPERATIVELY CONNECT EACH GUN CONDUIT OF A PAIR WITH A FUEL GAS SUPPLY MAIN, ALONG THE OUTSIDE OF SAID SIDE FACE OF THE BATTERY, IN ALTERNATION WITH THE CONNECTION OF THE JET MEANS OF THE OTHER CONDUIT OF THE SAME PAIR, FOR EFFECTING INFLOW OF RICH GAS FROM SAID FUEL GAS MAIN TO THE RICH GAS GUN CONDUITS OF THE SAME PAIR IN ALTERNATION WITH EACH OTHER, FOR UPFLOW COMBUSTION IN THE FLUES SERVED BY THE RESPEC-