Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish (1871)
Spon, Edward, Byrne, Oliver, Spon, Ernest · London, New York : E. & F.N. Spon · leaf 308
COPPER. 1064 fluid metal. These contain matt of a variety of compositions, according to the height of the metal in the basin. 2109. 2110. The matt thus obtained is generally roasted, either in kilns, or more generally, at present, in reverberatories, of which Fig. 2112 represents a vertical section… … a condensing chamber C, into which the volatile metals are conducted. These two furnaces, one above the other, are so arranged that either of them may be used separately. The flame is then conducted from the lower furnace in a separate flue into the condensing chamber, the partitions in which are…
Engineering
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