Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 413
More general than the foregoing are the blast-furnaces for smelting lead. These are furnaces resemoling a cupola in which iron is smelted, more than any thing else ; they are generally built in a roughmanner in appearance, but the inside of the furnace coincides with a cupola; it is generally from…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
