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Automatic Block Signals and Signal Circuits: American Practice in the Installation and Maintenance of Signals Electrically Controlled, and Operated by Electric or Other Power (Classic Reprint) - Softcover
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Excerpt from Automatic Block Signals and Signal Circuits: American Practice in the Installation and Maintenance of Signals Electrically Controlled, and Operated by Electric or Other Power The evolution of a mechanical art results in the simplification of its apparatus. The less the number of subsidiary devices employed, and consequently the greater the number of their independent functions, the higher the state of this art. Signaling accessories, although of rapid development, have not as yet undergone the usage test that is the prerequisite to standardization and the elimination of impracticable differentiated structures. In surveying the heterogeneous types of construction employed in the signal equipment of a representative railroad system, the difficulty of selection and representation, with respect to relative significance, becomes apparent. In a book of this character, it is extremely difficult to intelligibly exhibit continuous circuits of any great complication, owing to the restricted space available for illustrations, insets not having been resorted to. The history of signaling is not touched upon, as it is irrelevant to the character of the present work. Railroad terms have also been omitted, as they are meaningless to the average reader. All-electric interlocking, a natural development of the older mechanical and electro-pneumatic interlocking, is given the attention that its importance merits. Electric railway signals are described as fully as seems advisable, since they are in a transitory state of rapid progress. Electro-gas and three-position signals, representing the highest development of the art in America, have been treated not only from an electrical standpoint, but also from a structural point of view. This book is intended for the signal and railway engineer, the electrician, and the layman; and it is modestly hoped that it will appeal to all in any way concerned with signaling. About the Publisher Forgotten Books publishes hundreds of thousan
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- PublisherForgotten Books
- Publication date2020
- ISBN 10 1330231198
- ISBN 13 9781330231197
- BindingPaperback
- LanguageEnglish
- Number of pages255
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Automatic Block Signals and Signal Circuits (Classic Reprint)
Print on DemandSeller: Forgotten Books, London, United Kingdom
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Paperback. Condition: New. Print on Demand. This book delves into the intricate world of railroad signaling, a field that has experienced a remarkable evolution from its early mechanical origins to the advanced electrical systems of the day. The author expertly guides readers through the complexities of automatic block signals, tracing their development and highlighting the various techniques employed to ensure the safe movement of trains. From basic circuit configurations to more elaborate overlap systems, the book examines the practical application of these signals in real-world scenarios. Key topics include the fundamental concepts of normal danger and normal clear signaling systems, the crucial role of track circuits in controlling signal operations, and the innovative use of electric interlocking for increased safety. The author also explores the design and operation of various signal components, including motors, relays, and electro-pneumatic and electro-gas signals. This insightful exploration into the heart of railroad signaling reveals the vital role played by these seemingly simple devices in ensuring the safe and efficient movement of trains across vast distances. The book's detailed explanations and numerous illustrations offer a comprehensive understanding of this critical technological system. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781330231197_0
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Automatic Block Signals and Signal Circuits American Practice in the Installation and Maintenance of Signals Electrically Controlled, and Operated by Electric or Other Power Classic Reprint
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
Seller rating 5 out of 5 stars
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330231197
Quantity: 15 available
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Automatic Block Signals and Signal Circuits American Practice in the Installation and Maintenance of Signals Electrically Controlled, and Operated by Electric or Other Power Classic Reprint
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
Seller rating 4 out of 5 stars
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330231197
Quantity: 15 available