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Author: Pittsburgh Electric Club Publisher: Forgotten Books ISBN: 9780656104901 Category : Technology & Engineering Languages : en Pages : 558
Book Description
Excerpt from The Electric Journal, Vol. 14: January-December, 1917 Figs. 1, 2 and 3 - typical post designs Showing reverse scroll bracket (fig bishop crook (fig. And mast-arm (fig 3) posts, all equipped with Mazda C lamps. In 1859 there were 13 500 street lamps in service, all burning gas, except a limited number of oil lamps. Sev er'al other companies were organized in various sections of the city, and in 1873 there were 18000 gas street lamps in service; in 1879 the gas street lamps numbered 21 000. In 1877 approximately 2000 naphtha lamps were placed in service, but their use continued for street lighting only as long as the gas was not available, and in 1880 they were restricted to the lighting in parks and parkways. For this latter type of installation they were the accepted type of lighting unit until 1908, at which time their replacement by electric units began and has continued until the present time, when they are prae tically all eliminated. 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.
Author: Pittsburgh Electric Club Publisher: Forgotten Books ISBN: 9780656104901 Category : Technology & Engineering Languages : en Pages : 558
Book Description
Excerpt from The Electric Journal, Vol. 14: January-December, 1917 Figs. 1, 2 and 3 - typical post designs Showing reverse scroll bracket (fig bishop crook (fig. And mast-arm (fig 3) posts, all equipped with Mazda C lamps. In 1859 there were 13 500 street lamps in service, all burning gas, except a limited number of oil lamps. Sev er'al other companies were organized in various sections of the city, and in 1873 there were 18000 gas street lamps in service; in 1879 the gas street lamps numbered 21 000. In 1877 approximately 2000 naphtha lamps were placed in service, but their use continued for street lighting only as long as the gas was not available, and in 1880 they were restricted to the lighting in parks and parkways. For this latter type of installation they were the accepted type of lighting unit until 1908, at which time their replacement by electric units began and has continued until the present time, when they are prae tically all eliminated. 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.
Author: Electric Club Publisher: Arkose Press ISBN: 9781344925419 Category : Languages : en Pages : 676
Book Description
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.
Author: Anonymous Publisher: Arkose Press ISBN: 9781346076973 Category : Languages : en Pages : 574
Book Description
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.
Author: Pittsburgh Electric Club
Author: Pittsburgh Electric Club
Author: Electric Club
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Author: Institution of Electrical Engineers
Author: 
Author: Anonymous
Author: United States. Bureau of Mines
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