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[8]: 18 Ball signals were first used to direct train movements in 1852, on the New York and New Haven Railroad. [2]: 134 Other mechanical signals used during the 19th century include: A 4 feet (1.2 m) disc, painted red and mounted on a revolving pole; it indicated "stop" when positioned to face an approaching train.
Union Switch & Signal (commonly referred to as US&S) was an American company based in Pittsburgh, Pennsylvania, which focused on railway signaling equipment, systems and services. The company was acquired by Ansaldo STS (from 2015, Hitachi Rail STS ) in 1988, [ 1 ] operating as a wholly-owned company until January 2009, when US&S was renamed ...
By the 1850s, railroad operating rules, often printed as pamphlets or on the back of a time card, had evolved to near universal application. On April 14, 1887 representatives of 48 railroads voted for the adoption of what is now known as the Standard Code of Operating Rules (SCOR), published by the AAR. Thus, all railroad rule books in North ...
A railway detonator, (torpedo in North America) or fog signal is a coin-sized device that is used as a loud warning signal to train drivers. It is placed on the top of the rail, usually secured with two lead straps, one on each side. When the wheel of the train passes over, it explodes, emitting a loud bang.
The firm purchased Los Angeles–based Magnetic Signal Company in the late 1940s and moved production to Minneapolis. Magnetic Signal is the company credited with the invention of the wigwag grade crossing signal once common throughout Southern California. "Railroad Accessories Corporation" (RACO) merged with Griswold Signal Company in 1964.
Fayette Central Railroad (tourist trains operating over Southwest Pennsylvania Railroad trackage) Kiski Junction Railroad (working railroad that also operates tourist trains) Lehigh Gorge Scenic Railway (heritage railroad) Lehigh Lackawanna RailRoad; Middletown and Hummelstown Railroad (working railroad, but with emphasis on tourist trains)
General Railway Signal Company (GRS) was an American manufacturing company located in the Rochester, New York area. GRS was focused on railway signaling equipment, systems and services. The company was established in 1904 and became part of Alstom Transport in 1998.
Disc signal manufactured by Hall Signal Company A 1916 advertisement for a Hall wigwag grade crossing signal. The Hall Signal Company was an American manufacturer of railway signaling equipment in the 19th and 20th centuries. Hall's equipment was widely used by American railroad companies.
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