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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Industrial Engineering And The Engineering Digest, Volume 11 William Kent Robert Thurston Kent, Charles MacCaughey Sames The Industrial Engineering Publishing Co., 1912 Technology & Engineering; Engineering (General); Engineering; Technology; Technology & Engineering / Engineering (General)

Contains each month an "Index to current technical literature."

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. 1912 edition. Excerpt: ...provided only with general illumination. The provision of ample light usually effecting economies in productiozz, it will probably be a paying proposition to provide localized-general illumination by means of a single row of 60-to I50watt tungsten lamps in extensive or intensive metal reflectors spaced 8 to 12 ft. apart, depending upon the intensity of illumination required. These lamps should be suspended at a height of about 5 ft. above the bench and in a single row down its center line. Such an arrangement will be very satisfactory for the ordinary grade of bench work.-Vhere very fine work, such as die sinking. is to be done, better results would be obtained by providing two rows of lights--one down either edge of the bench, the lighting units in the two rows being staggered with respect to each other. In laying out an installation of this character, the bench might be considered as two single benches placed back to back and the light problem treated accordingly. In arranging lighting installations for benches. and in fact for all classes of machine work, it is important that the lamps be so placed that the light from them does not fall directly on the eye. Most of the evils of bad lighting of benches are due to the fact that bare lamps are usually provided and are suspended over each vise at about the level of the workman's eye. It does not take any great length of time for such an installation to ruin the eye-sight of any worker. For the above reasons, metal reflectors placed at the proper height to clear all work on the bench and to give an even distribution of light, are recommended. The workman should not be able to look di-. rectly at a light unless he is immediately underneath the reflector. /lssvmbling.--For a s s e m bl...

Contains each month an "Index to current technical literature."