Spray cooled side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace which is unitary, i.e. one-piece, and has an inter-connected coolant supply and inter-connected spent coolant drain....http://www.google.com/patents/US6185242?utm_source=gb-gplus-sharePatent US6185242 - Integral side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace
