The New International Encyclopædia/Sellers, William
SELLERS, William (1824— ). An American manufacturer and mechanical engineer, born in Delaware County, Pa., and educated at private schools. In 1868 Sellers became president of the Edge Moore Iron Company, and from 1873 to 1887 was head of the Midvale Steel Company, of Nicetown, Pa. The Edge Moore Iron Company made the ironwork for the buildings of the Philadelphia Centennial Exposition and for the Brooklyn (N. Y.) Bridge. In 1864 he published the first formula for screw threads and nuts, now standard in the United States and regularly used in Europe.