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Mining and Ore-Dressing Machinery

  • Kartonierter Einband
  • 478 Seiten
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Excerpt from Mining and Ore-Dressing Machinery: A Comprehensive Treatise Dealing With the Modern Practice of Winning Both Metalli... Weiterlesen
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Excerpt from Mining and Ore-Dressing Machinery: A Comprehensive Treatise Dealing With the Modern Practice of Winning Both Metalliferous and Non-Metalliferous Minerals

Wind. - For giving motion to machinery, windmills have been and still are very extensively used. Engineers of the last generation devoted much attention to the construction of windmills, and brought them to great perfection. The introduction of steam-power - manageable, and always to be depended ou - has, in a great measure, superseded that of wind. True, after the first cost of a windmill, the power is comparatively inexpensive; but it is so variable in intensity - sometimes, when it is not required, exerting great force, and sometimes, when it may be most wanted, totally ineffective - that it is generally preferable to apply a force, perhaps considerably more expensive in its production, but constant, steady, and completely under control. The intervention of electric storage batteries, however, is an obvious method of reducing this evil to a minimum.

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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.

Produktinformationen

Titel: Mining and Ore-Dressing Machinery
Untertitel: A Comprehensive Treatise Dealing With the Modern Practice of Winning Both Metalliferous and Non-Metalliferous Minerals (Classic Reprint)
Autor:
EAN: 9781333180416
ISBN: 1333180411
Format: Kartonierter Einband
Anzahl Seiten: 478
Gewicht: 635g
Größe: H229mm x B152mm x T25mm
Jahr: 2016

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