Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 432
e then e.xamined, and the consistence of the mass is ad- which it is charged and emptied. The justed by adding a little water or ore arrangement of the barrels, feeding- as may be necessary ; this done, 5 cwt. hoppers, escape-troughs, and motive mercury is introduced, and the barrel is power is… … being turned mouth upwards again, the The prepared ore is placed in the large plug is withdrawn, and the barrel hopper a, one of which is over each is turned over so that all the contents barrel, and provided with a wooden may escape into the gutter A, by which spout b, whose lower end is joined to…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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