Glass bending furnaces

Claim 1

IN A FURNACE FOR BENDING GLASS SHEETS, A HORIZONTALLY ELONGATED HEATING CHAMBER COMPRISING A BOTTOM WALL, SIDE WALLS, AND A TOP WALL, CONVEYOR MEANS IN SAID CHAMBER FOR CONVEYING A BENDING APPARATUS AND GLASS SHEETS SUPPORTED THEREON ALONG A SUBSTANTIALLY HORIZONTAL PATH THERETHROUGH, FIRST HEAT SOURCES ARRANGED IN THE TOP WALL OF SAID CHAMBER, SECOND HEAT SOURCES ARRANGED AT THE OPPOSITE SIDES OF THE HEATING CHAMBER BENEATH SAID CONVEYOR FOR DIRECTING HEAT CURRENTS TRANSVERSELY OF THE PATH OF TRAVEL OF THE BENDING APPARATUS AND GLASS SHEETS, AND A REFRACTORY PARTITION WALL POSITIONED LONGITUDINALLY OF THE HEATING CHAMBER BETWEEN SAID SECOND HEAT SOURCES AND EXTENING UPWARDLY FROM SAID BOTTOM WALL TO A POINT ADJACENT TO BUT SPACED BENEATH SAID CONVEYOR MEANS FOR SUBSTANTIALLY PREVENTING THE HEAT CURRENTS FROM THE HEAT SOURCES AT ONE SIDE OF THE HEATING CHAMBER FROM INTERMINGLING WITH THE HEAT CURRENTS FROM THE HEAT SOURCES AT THE OPPOSITE SIDE OF THE HEATING CHAMBER.