Adding scrap to the charge of an open hearth furnace during steel making. Steel Workers use crane to pick up scrap for adding to the charge of an open hearth furnace. Workers sort scrap by noting the kinds of sparks produced as it is touched to a grinding wheel. Scrap is charged into the furnace by means of machines on rails. Operator seen at controls of charging machine. Under control of operator seen in booth above, molten iron is poured into the furnace from a huge Ladle. . Workers manually shovel Ferro manganese into the furnace, in measured quantity, to control the oxygen content. Furnace is tapped by burning and ramming a plug and molten steel flows in ladle. Molten steel is 'teemed' into ingot molds. Technician checks temperature of the steel with an optical pyrometer.
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