Metallurgy Of Cast Iron

FIG. 9.—ENLARGED VIEW OF MODERN BLAST FURNACE.gies used hold about 800 pounds of ore and of coke 450 pounds.- The men charging the furnace are called " top fillers " and those loading the buggies '' bottom fillers.'' The work is thoroughly systematized, each man knowing his part. Top fillers hold a somewhat hazardous position, as it is not uncommon for men to be " gased '' by the fumes escaping at the bell and hopper of a furnace. Some furnaces suspend a sheet iron stack about ten feet over the top