This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... Chapter IX MACHINE SHOPS AND THEIR SPECIFIC REQUIREMENTS THE preceding chapter dealt with certain of the broad characteristics of metalworking plants; consequently the discussion was more specific than the treatment accorded our subject in the chapters that preceded it. It is now proposed to exemplify ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... Chapter IX MACHINE SHOPS AND THEIR SPECIFIC REQUIREMENTS THE preceding chapter dealt with certain of the broad characteristics of metalworking plants; consequently the discussion was more specific than the treatment accorded our subject in the chapters that preceded it. It is now proposed to exemplify the knowledge of details of the most specific character which must be possessed by the engineer who undertakes the planning and arranging of industrial plants, limiting the consideration to certain features of machine-shop practice as they follow logically upon the questions last considered. The primary object when arranging or planning a machine shop is to provide for the most efficient performance of different kinds of work upon definite amounts of various materials, so that the characteristics of the resulting plant shall be the direct outgrowth of a detailed definition of all of the factors incident to the execution of such work. This includes, of course, a thorough understanding of all of the broader requirements which have been touched upon in the preceding chapters, such, for example, as the routing problem. The machine-shop problem considered in its most elemental sense resolves itself into one of removing chips from the parts upon which the work is to be done. This is equally true whether we consider a lathe tool removing a heavy turning from a locomotive tire or a file smoothing a metal surface, an emery wheel cleaning up the face of a casting or a scraper putting the finishing touches on the shears of a lathe. Tool steel is used for by far the greater amount of work, so it should be expected that any marked improvement in its composition or method of treatment, making possible the removal of a greater quantity of chips in a given...
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