. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. erstone, which also resembles it, in furnishing a good steel. The forging of a horse-shoe is reckoned a good criterion of the quality of iron. Its freedom from flaws isdetected by the above modes ; and its linear strength may be determined by suspendinga scale to the lower end of a hard-drawn wire, of a given size, and adding weights tillthe wire breaks. The treatises of Barlow and Tredgold may be consulted with advan-tage on the methods of proving the strength of diiferent kinds of
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. erstone, which also resembles it, in furnishing a good steel. The forging of a horse-shoe is reckoned a good criterion of the quality of iron. Its freedom from flaws isdetected by the above modes ; and its linear strength may be determined by suspendinga scale to the lower end of a hard-drawn wire, of a given size, and adding weights tillthe wire breaks. The treatises of Barlow and Tredgold may be consulted with advan-tage on the methods of proving the strength of diiferent kinds of iron, in a great varietyof circumstances. Steel of cementation, or blistered steel and cast steel, are treated under the article since in the conversion of cast iron into wrought iron, by a very slight diilerence inthe manipulations, a species of steel may be produced called natural steel, I shall describethis process here. Fig. 603 is a view of the celebrated steel iron works, called Konigshlitte, [kings-forge),in Upper Silesia, being one of the best arranged in Germany, for smelting iion ore by.
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
