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A right-hand railroad switch with point indicator pointing to right Animated diagram of a right-hand railroad switch. Rail track A divides into two: track B (the straight track) and track C (the diverging track); note that the green line represents direction of travel only, the black lines represent fixed portions of track, and the red lines depict the moving components.
The point machine (in this case an electric motor) and associated mechanism used to operate this switch can be seen to the right in the picture. A point machine (also known as a point motor, switch machine or switch motor) is a device for operating railway turnouts especially at a distance.
Catskill Mountain Railroad, The in Kingston, NY has an early side rod 45 Tonner in service as both an MOW engine and a pusher for Polar Express and other large event consists. [ 4 ] East Terminal Railway, The in Columbus, Ohio acquired one of these locomotives in August 2021, with plans to restore it to full operation and to use it as its ...
A switcher locomotive (American English), shunter locomotive (British English), or shifter locomotive (Pennsylvania Railroad terminology) is a locomotive used for maneuvering railway vehicles over short distances. Switchers do not usually move trains over long distances. Instead, they typically assemble trains in order for another locomotive to ...
Entire rail systems or political areas may adopt a common naming convention. In Central Europe, for example, signalling control points were all issued regionally unique location codes based roughly on the point's location and function, [ 3 ] while the American state of Texas sequentially numbered all interlockings for regulatory purposes.
Railway interlocking is of British origin, where numerous patents were granted. In June 1856, John Saxby received the first patent for interlocking switches and signals. [2] [3]: 23–24 In 1868, Saxby (of Saxby & Farmer) [4] was awarded a patent for what is known today in North America as “preliminary latch locking”.
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Rail transport terms are a form of technical terminology applied to railways. Although many terms are uniform across different nations and companies, they are by no means universal, with differences often originating from parallel development of rail transport systems in different parts of the world, and in the national origins of the engineers and managers who built the inaugural rail ...