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Tie Exchanger
A tie exchanger (also known as a TKO for Tie Knock Out, or by various combinations of tie exchanger, extractor, replacer, or inserter) is a self-propelled railroad maintenance of way vehicle that removes old railroad ties (also known as sleepers) from tracks and inserts new ones. By using mechanical and hydraulic force, a tie extractor/inserter can replace ties much faster and with more precision than is possible by hand. The TKO is distinct from the track renewal train, a much more complex machine which replaces the entirety of the rails and ties at once. History While wooden railroad ties are treated with preservatives such as creosote to resist decay, they do not last forever and must be replaced every 20 to 40 years, depending on factors such as climate and the type of wood used. In particularly wet climates, replacement must occur more frequently as the ties rot faster. Ties may also need to be replaced regardless of age after derailments, washouts, or other events that c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tie Inserter, CSX, Waycross
Tie has two principal meanings: * Tie (draw), a finish to a competition with identical results, particularly sports * Necktie, a long piece of cloth worn around the neck or shoulders Tie or TIE may also refer to: Engineering and technology * Tie (engineering), a strong component designed to keep two objects closely linked together * Railroad tie, a rectangular support for the rail * Tensilica Instruction Extension, a verilog-like language that is used to describe the instruction extensions to the Xtensa processor core * Time Independent Escape Sequence, a modem protocol Enterprises and organizations * TiE (The Indus Entrepreneurs), a Silicon Valley non-profit * Titanium Metals Corporation, with the stock symbol TIE on the New York Stock Exchange * Transport Initiatives Edinburgh Ltd., an Edinburgh-based public transport company Science * Interpersonal ties, in sociology and psychology * TIE receptors, specific types of cell surface receptors Acronym * Theatre in Education ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Tie
A railroad tie, crosstie (American English), railway tie (Canadian English) or railway sleeper ( Australian and British English) is a rectangular support for the rails in railroad tracks. Generally laid perpendicular to the rails, ties transfer loads to the track ballast and subgrade, hold the rails upright and keep them spaced to the correct gauge. Railroad ties are traditionally made of wood, but prestressed concrete is now also widely used, especially in Europe and Asia. Steel ties are common on secondary lines in the UK; plastic composite ties are also employed, although far less than wood or concrete. As of January 2008, the approximate market share in North America for traditional and wood ties was 91.5%, the remainder being concrete, steel, azobé (red ironwood) and plastic composite. Tie spacing may depend on the type of tie, traffic loads and other requirements, for example on North American mainline railroads to on London, Midland and Scottish Railway joi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Track Renewal Train
A track renewal train (also known as a track renewal system or new track construction machine) is a work train that consists of many units of machinery and materials required for Track (rail transport), track renewal (rail and Railroad tie, sleeper replacement) projects. Rail preparation To minimize the time of track during a track renewal project, a track renewal train is used to automate most of the required process. Prior to the arrival of the track renewal train, preparation tasks must be completed. In some cases, the old rail needs to be cut into smaller segments and joined with fishplates. The rail fastening system may need to be released prior to its arrival. The new rails usually need to be prepared prior to the arrival of track renewal train. Rails are delivered to the center of the track. Those rail pieces are welded by track workers to form Track (rail transport)#Continuous welded rail, continuous welded rail (CWR) and left at the center of the track at the exact posit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
