International Code of Signals

International Code of Signals

Author: Hydrographic Office

Publisher: BoD – Books on Demand

Published: 2012-08

Total Pages: 566

ISBN-13: 3954272091

DOWNLOAD EBOOK

In the early 20th century the US "International Code of Signals" was a very progressive way for vessels to communicate important messages regarding matters of safety and navigation. The edition of 1907 contained three sections: the first part depicts urgent and important signals and all the tables of money, weights, barometric heights, etc., together with a geographical list and a table of phrases formed with the auxiliary verbs. The second part is an index. It consists of a general vocabulary and a geographical index. The third part gives lists of the United States storm-warning, life-saving, time-signal, and wireless telegraph stations, and of Lloyd's signal stations of the world. It also contains semaphore and distant signal codes and the United States Army and Navy and Morse Wigwag Codes. Reprint of the original edition.


Classic Railroad Signals

Classic Railroad Signals

Author: Brian Solomon

Publisher: Voyageur Press

Published: 2015-02-15

Total Pages: 160

ISBN-13: 1627886397

DOWNLOAD EBOOK

Explore the history, quirks, and stories behind signals with gorgeous period and contemprary photography. Railroad signals are the link between the steam era and modern railroading. Designed for reliability and durability, signals can survive for decades. In fact, old semaphores installed during the early years of the twentieth century were still in service during the 1990s, protecting trains that were running with the latest modern diesels. Even searchlight-style signals that were the epitome of 1940s railroading continue to work today. Though standards were introduced in the early twentieth century, interpretation varied greatly among railroads, so even major railroads have individualized signals. Some, such as the Pennsylvania Railroad, were noted for their distinctive signaling hardware. Others lines became known for their peculiarities in practice. Classic Railroad Signals examines how different railroads developed specific hardware to serve their unique needs, in the process tracing the lineage of various types of hardware and highlighting how and where they were used. From nineteenth-century mechanical signals to disc signals, upper- and lower-quadrant semaphores, three-light electric signals, searchlight-style targets, positional lights, and color-position light hardware, author Brian Solomon covers nearly every conceivable piece of North American signaling hardware, even the virtually extinct wig wag that was once standard in California and Wisconsin. Gorgeous period and contemprary photography shows signals and trains from around North America. Classic Railroad Signals should be next to Railroad Signaling on every railroad fan's bookshelf.