Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 404
annular space filled with air, answers it is thus necessarily distributed in all admirably as a non-conductor of heat, directions in the furnace. The cone is outside of which is another tliin wall of instantly raised again, and thus sliuts brick enclosed in a shell of boiler-iron. oft" the escape… … vertical furnaces for the poor ore. The less than 1 per cent, of mercury : a is the hearth of the reverberatory furnace, retorts are arranged horizontally, 3 by 3, in 4 ovens. The mouth of the whence the vapours pass through a condensing chamber h, thence by an iron retort is closed by a cover,…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
