. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ter as to extendfrom 5 to 6 in. beyond the tuyere. When the basin and hearth have becoQie full of matt andmetallic lead, a plug of clay is removed, and their contents are run off into one of the floats /, wherethey are allowed to remain until the matt begins to solidify, when it is removed in diocs, as beforedescribed, and the metallic lead ladled into moulds ready for desilverization. Thomas^ Smelting Furnace^ Figs. 3092 to 3094. The chief object of the in
. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . ter as to extendfrom 5 to 6 in. beyond the tuyere. When the basin and hearth have becoQie full of matt andmetallic lead, a plug of clay is removed, and their contents are run off into one of the floats /, wherethey are allowed to remain until the matt begins to solidify, when it is removed in diocs, as beforedescribed, and the metallic lead ladled into moulds ready for desilverization. Thomas^ Smelting Furnace^ Figs. 3092 to 3094. The chief object of the inventor of this furnaceis to construct air or blast furnaces which will the better withstand the action of heat and scouringfluxes in the melting of iron, copper, or other metals, or in the smelting of their ores. The mainfeatures of this invention, in addition to the general arrangement of the parts, are the constructionof water-boshes, and the employment of spikes on the water-boshes. Fig. 3092 shows a sectionalelevation ; Fig. 3093 a similar view at right angles ; and Fig. 3094 a sectional plan of one of thesefurnaces. 3092.
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Keywords: ., bookcentury1800, bookdecade1870, bookidsp, booksubjectengineering
