switch (43 Ergebnisse)

Zustand: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Zustand: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

Paperback. Zustand: Very Good. Memories Unlocked This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. .

Zustand: As New. Like New condition. A near perfect copy that may have very minor cosmetic defects.

Paperback. Zustand: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee.

Zustand: New. In.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. In.

Zustand: New. In.

Zustand: New. In.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. In.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Soft cover. Zustand: Very Good. Softcover. Stiff paper wraps, stapled at the fold. Front cover depicts a black-and-white illustration of a nine-cylinder rotary aircraft engine manufactured at the company's drop forge plant. Measures 6" x 9", 22 pages, in very good condition. Pages 3-16 contain listings for various pieces of equipment manufactured by the company's drop forge department: gears, crankshafts, axles, levers, brake shoes, and more. Listings contain a black-and-white photograph of the part or parts in question, accompanied by a short description giving specifications and physical dimensions. Page 17 lists the company's conditions of sale. Pages 18-19 contain a partial listing of the various kinds of parts that the company can forge and has forged. Page 20 contains statistics about the Pittsburgh District, including population, land valuation, net debt, miles of roads, and more. Page 21 contains a listing of automobile statistics for the year 1919, both production statistics and consumption statistics. Covers are rubbed and smudged. Only minor wear and tear to edges and corners. Some writing in ink on front cover. Stamps on front cover indicate that this catalogue came from a catalogue library, including one with date (January 15, 1921) indicating date of receipt by the library. Pages are clean and unmarked. The Union Switch & Signal Company, a manufacturer of signaling equipment, was based in Swissvale, Pennsylvania. $25.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. In.

Soft cover. Zustand: Very Good. Softcover. Stiff paper wraps, stapled at the fold. Front cover contains a black-and-white illustration of a speeding train, along with a black-and-white photographic inset of a railway signalman. Measures 6" x 9", 51 pages, in very good condition. Illustrated with three-color maps and black-and-white drawings, photographs and diagrams. Pages 5-20 contain a history of the continuous system of cab signaling, along with various advantages of its use and information about the equipment required for its use. Between pages 20 and 21 is a two-page aerial photograph of a horseshoe-shaped curve in a railroad line in Pennsylvania on which the company's signaling system is used. Pages 21-24 contain information and specifications on the circuitry that powers the system. A section of maps of various railroad lines follows page 24. Three-color maps are accompanied by black-and-white photographic insets of the signaling systems that they use, along with some specifications about those signaling systems. Pages 46-51 contain photographs of the signals used in the signaling system, along with a listing of which railroad lines use the system. Covers have faded slightly at spine, and show some rubbing. Light wear and tear to edges and corners. Cataloging number is written in ink on front cover, and is accompanied by the year "1930" written in pencil. Pages are clean and unmarked. The Union Switch & Signal Company, a manufacturer of railroad signaling equipment, was based in Swissvale, Pennsylvania. $35.

Soft cover. Zustand: Very Good. Softcover. Stiff paper wraps, stapled at the fold. Front cover contains a black-and-white illustration of a speeding train, along with a black-and-white photographic inset of a railway signalman. Measures 6" x 9", 51 pages, in very good condition. Illustrated with three-color maps and black-and-white drawings, photographs and diagrams. Pages 5-20 contain a history of the continuous system of cab signaling, along with various advantages of its use and information about the equipment required for its use. Between pages 20 and 21 is a two-page aerial photograph of a horseshoe-shaped curve in a railroad line in Pennsylvania on which the company's signaling system is used. Pages 21-24 contain information and specifications on the circuitry that powers the system. A section of maps of various railroad lines follows page 24. Three-color maps are accompanied by black-and-white photographic insets of the signaling systems that they use, along with some specifications about those signaling systems. Pages 46-51 contain photographs of the signals used in the signaling system, along with a listing of which railroad lines use the system. Covers have faded at spine, and are slightly scuffed. Light wear and tear to edges and corners. Stamps on front cover indicate that this catalogue came from a catalogue library, including one with date (December 14, 1935) indicating date of receipt by the library. Pages are clean and unmarked. The Union Switch & Signal Company, a manufacturer of railway signaling systems, was based in Swissvale, Pennsylvania. $35.

Paperback. Zustand: Brand New. 342 pages. 8.50x5.90x0.60 inches. In Stock.

Zustand: NEW.

Zustand: Ottime. italiano Condizioni dell'esterno: Ottime Condizioni dell'interno: Ottime.

Soft cover. Zustand: Good. Softcover trade publication collecting various bulletins which illustrate and describe Penn switches, circa 1928-29. Gray wrappers. 46 pages, measuring 9 x 11.5 inches. Ex-library copy with one pencil mark in the center of the front cover, reading "electric switches." The forward has a blind stamp on it. There is rubbing to the wrappers and smudges, with creases and chipping along the outer edges, where the wrapper extends past the text block. Overall, the volume is in good condition with strong binding and unmarked pages.

Zustand: New.

4°, cloth. Like new. Wegen Urlaubs können eingehende Bestellungen erst am 15. Juli 2026 versendet werden. Bestellungen werden zeitnah bestätigt, werden aber erst am 15. Juli 2026 versendet. Due to holidays incoming orders cannot be shipped before July, 15th, 2026. Incoming orders will be confirmed but will not be shipped before July, 15th. Sprache: Englisch Gewicht in Gramm: 0.

Hardcover. Zustand: Fine. Brand New! Sealed in publisher's shrinkwrap. Never opened! No signs of wear.

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware - 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. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Taschenbuch. Zustand: Neu. Neuware - 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.

Taschenbuch. Zustand: Neu. Neuware - Produced by the Union Switch and Signal Company, these bulletins are a valuable resource for railway signal engineers and enthusiasts interested in the history of railway signaling. Covering a wide variety of topics, from interlocking machines to switch locks, this series is recommended for those interested in historical railway technology.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. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.