Railway Signal Engineering (mechanical)
Author | : Leonard P. Lewis |
Publisher | : |
Total Pages | : 420 |
Release | : 1912 |
Genre | : Railroads |
ISBN | : |
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Author | : Leonard P. Lewis |
Publisher | : |
Total Pages | : 420 |
Release | : 1912 |
Genre | : Railroads |
ISBN | : |
Author | : Leonard P. Lewis |
Publisher | : |
Total Pages | : 392 |
Release | : 1912 |
Genre | : Railroads |
ISBN | : |
Author | : L.P. Lewis |
Publisher | : Tgr Renascent Books |
Total Pages | : 226 |
Release | : 2013-10 |
Genre | : |
ISBN | : 9780956358585 |
THIS standard treatise on mechanical railway signalling by Leonard Lewis was written at the turn of the twentieth century. Originally published in 1910 as Railway Signal Engineering (Mechanical), a second edition followed in 1912. A third edition, revised and enlarged by J. H. Fraser, appeared in 1932. Since its original publication, now more than 100 years ago, much if not all of the mechanisms and practices described and illustrated have disappeared from the modern high-speed railways of Britain and the rest of the world. In his preface to the first edition, Lewis wrote that he intended the book to be '... suitable for men who are engaged in railway work, but not necessarily in connection with the Signalling Engineer's Department.' Today, such men no longer have any professional interest in what to them is now archaic and superseded. However, with the popular growth of preserved heritage railways, and the dedicated reconstruction and re-creation of many railway artefacts by enthusiasts, it is no longer possible to state categorically that any particular mechanism or operating procedure described in the book is extinct. Although they may have disappeared from modern railways in the electronic and computer controlled age, original or replica items or otherwise obsolete methods of working may well be in regular use on preserved branch line railways or be on display in railway museums. Herein lies the main inspiration for this new edition at the start of the twenty first century. Lewis's book, once describing the very cutting edge of railway technology, has become with the passage of time a valuable work of history. Nevertheless, its contents may still be very relevant and of inestimable value to those responsible for the maintenance and operation of precious and irreplaceable signalling equipment on preserved steam and diesel railways, wheresoever those lines might be. Again, the ever growing band of collectors and restorers of old signalling equipment will find the technical material in these pages of more than passing interest. Likewise, enthusiasts viewing the artefacts on display in railway museums might find that this volume can usefully supplement the information provided in simplified guide books and explanatory leaflets. Railway Signal Engineering (Mechanical) is long out of print. The present derivative work is based on the 1932 edition and non of Lewis's original text, nor that later added by Fraser, has been omitted from this reprint. It is in every word as the original, except for a few minor corrections and one important detail. That is, the captions to some of the drawings have been amended to more accurately reflect the intent of the illustration, than did Lewis's original captions. Also note that no illustrations have been omitted, although a few have been added. However, as the most cursory glance through the book pages will show, all the illustrations have been redrawn, in many cases substituting more realistic depictions of signals and mechanisms for the sometimes rather crude sketches in the original. Most notably, colour has been used, not only to provide a more visually appealing book for the enthusiast and the historian, but also in the hope that it adds somewhat to the understanding of technical descriptions and of the illustrations themselves.
Author | : Leonard P. Lewis |
Publisher | : Forgotten Books |
Total Pages | : 411 |
Release | : 2015-06-27 |
Genre | : Technology & Engineering |
ISBN | : 9781330241899 |
Excerpt from Railway Signal Engineering (Mechanical) The signalling of railways has developed rapidly, more especially during comparatively recent years, until it is now one of the most important branches of the Engineering Department. On its efficiency depends to a large extent the safety of the travelling public. That the Board of Trade recognises this fact is evidenced by the strict supervision which it exercises over the signalling of railways and the careful inspection made of new signalling installations. The demand of the public for greater facilities both for travelling and for merchandise, involving a greater density of traffic, has added to the complexity of railway working, while the modern necessity for speed and for heavier and longer trains has still further increased the difficulties which beset the signal engineer in providing immunity from accident. The advance in signal engineering practice has, however, been commensurate with the advance of railways. The efficiency of the system adopted on British railways may be gauged by the few accidents which occur compared with the enormous number of train movements, and of these accidents the majority are due not so much to any deficiency in the system as to the personal equation, which unfortunately cannot be entirely eliminated. The present volume is designed to provide at a reasonable cost a full and at the same time concise description of British practice in mechanical railway signalling. 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 | : Leonard P. Lewis |
Publisher | : |
Total Pages | : |
Release | : 1932 |
Genre | : |
ISBN | : |
Author | : Leonard P. Lewis |
Publisher | : Forgotten Books |
Total Pages | : 416 |
Release | : 2017-12 |
Genre | : Technology & Engineering |
ISBN | : 9780265161708 |
Excerpt from Railway Signal Engineering (Mechanical) The signalling of railways has developed rapidly, more especially during comparatively recent years, until it is now one of the most important branches of the Engineering Department. On its efficiency depends to a large extent the safety of the travelling public. That the Board of Trade recognises this fact is evidenced by the strict supervision which it exercises over the signalling of railways and the careful inspection made of new signalling installations. The demand of the public for greater facilities both for travelling and for merchandise, involving a greater density of traffic, has added to the complexity of railway working, while the modern necessity for speed and for heavier and longer trains has still further increased the difficulties which beset the signal engineer in providing immunity from accident. The advance in signal engineering practice has, however, been commensurate with the advance of railways. The efficiency of the system adopted on British railways may be gauged by the few accidents which occur compared with the enormous number of train movements, and of these accidents the majority are due not so much to any deficiency in'the system as to the personal equation, which unfortunately cannot be entirely 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 | : Leonard P Lewis |
Publisher | : Franklin Classics Trade Press |
Total Pages | : 416 |
Release | : 2018-10-24 |
Genre | : |
ISBN | : 9780344106903 |
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 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. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author | : |
Publisher | : |
Total Pages | : 434 |
Release | : 1916 |
Genre | : Railroads |
ISBN | : |
Author | : General Railway Signal Company |
Publisher | : |
Total Pages | : 24 |
Release | : 1953 |
Genre | : Railroads |
ISBN | : |
Author | : Louis Burton Mackenzie |
Publisher | : |
Total Pages | : 480 |
Release | : 1909 |
Genre | : Railroads |
ISBN | : |