Manual of Mining Tools: Comprising Observations on the Materials From and Processes by Which They Are Manufactured; Their Special Uses, Applications, Qualities, and Efficiency (Classic Reprint) - Tapa blanda

Excerpt from Manual of Mining Tools: Comprising Observations on the Materials From and Processes by Which They Are Manufactured; Their Special Uses, Applications, Qualities, and Efficiency

Chemical analyses have proved that, almost invariably, red-short iron contains in some form sulphur, and that cold-short iron contains phos phorus; hence, when iron is tender and weak at a red heat, or when cold, the cause is attributed to sulphur in the former case, and to phosphorus in the latter. Iron derived from the ores of some districts is noted for red-shortness; that from the ores of other districts for cold-shortness. Some ores give iron which is both red-short and cold-short. Naturally, those ores which are freest from sulphur, phosphorus, and other deleterious elements, yield pi g-iron most suitable for the pro duction of -best bar-iron. The smelter reduces and separates metallic iron from the ores by slaggz'ng or scorifying the accompanying earths, metals, &c and during this operation it is his duty to prevent, as far as possible, the com bination of any injurious element with the iron obtained. This is partially, or wholly, accom plished by introducing to the smelting furnace.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Manual of Mining Tools: Comprising Observations on the Materials From and Processes by Which They Are Manufactured; Their Special Uses, Applications, Qualities, and Efficiency

It has been endeavoured to make the following pages of some service to mine managers, viewers, or captains, and overmen, whose knowledge of the quality, durability, manufacture, and selection of tools is often appealed to, and who, consa quently, require to be familiar with the practical bearings of the subject.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.