Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 365
•.Lead — Slag smelting' ; Condensing vapours. 3d:; cation of the Castilian, being a blast peat, and a blast is introduced from the furnace provided either with a blowing rear about 4 in. above the cinder bed. Coke is employed to urge the heat before engine and 3 twyers, or a chimney and… … and being very rich in lead, is from reverberator)' slag, 20 of coal ashes, 13 time to time taken out and smelted, of lead-impregnated clay hearth of old but separately from the ores, since it furnaces, and 5 of rich slag from a contains metallic impurities such as previous operation. The rationale…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
