The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 327
e, Southwark, for Improve-ments in the treatment of zinc ores for the purpose of producing zincingots, rehich improvements are applicable to the reduction of other oresand metals. (A communicatiuu.)—Granted January 19; EnrolledJuly 19, 1847. The invention relates to making zinc from ores in… … Fig. 1, is the section of the furnace and apparatus. The furnacea, is cliarged through a funnel 6, at the upper part, there being slidesto prevent the passage off of the gas which m;iy be at the upper partof the furnace, the lower slide being closed when the upper one isopened at the time of…
Architecture · Civil engineering · Science
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