Author: Adolphus Washington Greely

Publisher: Forgotten Books

Published: 2017-06-08

Total Pages: 322

ISBN-13: 9780282270216

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Excerpt from Electrical Instruments and Telephones of the U. S. Signal Corps In view of the changed condition of affairs it is in the interests of economy and efficiency to consolidate the two manuals. In so doing the greater part of the valuable publications of Majors Reber and Russel have remained unchanged. Major Russel, in his revision of the work along lines designated by the Chief Signal Officer of the Army, has been assisted by Mr. R. A. Klock and other members of the electrical staff of the Signal Corps. The data regarding electrical instruments of the Signal Corps have heretofore been widely scattered, some in technical publications, where it was associated with much not immediately useful to the Sig nal Corps electricians and operators, and some in separate publica tions, drawings, and documents filed in the office of the Chief Signal Officer of the Army. Practical experience with telegraph apparatus under the severe tests imposed by tropical field conditions, supplemented by over a year's observations in the central telegraph office at Manila, P. I., emphasized the necessity of eliminating some old appliances and the adoption of modern improvements suitable for military telegraphy. Many of the details of the storage battery switchboard connections were worked out by the Signal Corps in the Manila office. The voltmeter-milliammeter method of testing, while not new, was, it is believed, given an unusually prolonged and constant use in the Philippines to determine its fitness for tropical as well as ordinary service conditions. Much of the other matter in the chapter on Testing and location of faults is new, and includes the application of the ohmmeter to line-testing by methods suggested and put into practice by Mr. Rob ert C. Lord. The importance of regular tests, and full records thereof, at offices is so great that this practice can not be too strongly enjoined, not only as insuring Uniformly excellent working condi tions, but also as a means of training men in the intelligent use of their instruments. 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.

Download or read book Electrical Instruments and Telephones of the U. S. Signal Corps (Classic Reprint) written by Adolphus Washington Greely and published by Forgotten Books. This book was released on 2017-06-08 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Electrical Instruments and Telephones of the U. S. Signal Corps In view of the changed condition of affairs it is in the interests of economy and efficiency to consolidate the two manuals. In so doing the greater part of the valuable publications of Majors Reber and Russel have remained unchanged. Major Russel, in his revision of the work along lines designated by the Chief Signal Officer of the Army, has been assisted by Mr. R. A. Klock and other members of the electrical staff of the Signal Corps. The data regarding electrical instruments of the Signal Corps have heretofore been widely scattered, some in technical publications, where it was associated with much not immediately useful to the Sig nal Corps electricians and operators, and some in separate publica tions, drawings, and documents filed in the office of the Chief Signal Officer of the Army. Practical experience with telegraph apparatus under the severe tests imposed by tropical field conditions, supplemented by over a year's observations in the central telegraph office at Manila, P. I., emphasized the necessity of eliminating some old appliances and the adoption of modern improvements suitable for military telegraphy. Many of the details of the storage battery switchboard connections were worked out by the Signal Corps in the Manila office. The voltmeter-milliammeter method of testing, while not new, was, it is believed, given an unusually prolonged and constant use in the Philippines to determine its fitness for tropical as well as ordinary service conditions. Much of the other matter in the chapter on Testing and location of faults is new, and includes the application of the ohmmeter to line-testing by methods suggested and put into practice by Mr. Rob ert C. Lord. The importance of regular tests, and full records thereof, at offices is so great that this practice can not be too strongly enjoined, not only as insuring Uniformly excellent working condi tions, but also as a means of training men in the intelligent use of their instruments. 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.