Rail lengths: Difference between revisions
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#REDIRECT [[Railway track#Rail lengths]] {{R from merge}} {{R to section}} |
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{{incomplete|date=October 2011}} |
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'''Rail lengths''' are made as long as possible, as joints between rails are a source of weakness. Over the decades, lengths increased as manufacturing processes improved. |
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The following are lengths from the steel mill, without any [[thermite welding]]. However shorter rails may be welded with [[Flash welding|flashbutt welding]]. |
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== Examples == |
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* (the following rails are not welded from shorter lengths) |
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* (1830) {{flagicon|United Kingdom}} {{convert|15|ft|m|2}} [[Liverpool and Manchester Railway]] |
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** fish-belly rails at {{convert|35|lb/yd|kg/m|1|abbr=on}}, laid mostly on stone blocks. |
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* (1880) {{flagicon|United States}} {{convert|39|ft|m|2}} [[United States]] to suit {{convert|40|ft|2|adj=on}} long [[Gondola (rail)|gondola waggons]] |
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* (1950) {{flagicon|United Kingdom}} {{convert|60|ft|m|2}} [[British Rail]] |
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* (1953) {{Flagicon|Australia}} {{convert|45|ft|m|2}} [[Australia]] <ref>{{cite news |url=http://nla.gov.au/nla.news-article48273211 |title=Surveys Of New Rail Link. |newspaper=[[The_Advertiser_(Adelaide)|The Advertiser (Adelaide, SA : 1931 - 1954)]] |location=Adelaide, SA |date=17 June 1953 |accessdate=3 October 2012 |page=5 |publisher=National Library of Australia}} </ref> |
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* (1900) {{flagicon|United Kingdom}} {{convert|71|ft|m|2}}) - steel works weighing machine for rails ([[Steelyard balance]])<ref> {{cite news |url=http://nla.gov.au/nla.news-article71390997 |title=Big Weighing Machines. |newspaper=[[Australian Town and Country Journal |Australian Town and Country Journal (NSW : 1870 - 1907)]] |location=NSW |date=4 August 1900 |accessdate=8 October 2011 |page=19 |publisher=National Library of Australia}} </ref> |
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* (1940s) {{flagicon|United States}} {{convert|78|ft|m|2}} [[US]] <ref> http://trn.trains.com/en/Railroad%20Reference/ABCs%20of%20Railroading/2006/05/Rail.aspx </ref> |
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Welding of rails into longer lengths was first introduced around 1893. |
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* (1895) {{flagicon|Germany}} [[Hans Goldschmidt]] |
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* (1935) {{flagicon|United States}} [[Charles Cadwell]], non-ferrous [[Thermit welding]] |
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* (1950) {{flagicon|Australia}} {{convert|240|ft|m|2}} welded <ref> {{cite news |url=http://nla.gov.au/nla.news-article50202941 |title=Opening Of S.-E. Broad Gauge line. |newspaper=[[The_Advertiser_(Adelaide)|The Advertiser (Adelaide, SA : 1931 - 1954)]] |location=Adelaide, SA |date=2 February 1950 |accessdate=8 December 2011 |page=1 |publisher=National Library of Australia}} </ref> |
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* (2013) {{flagicon|France}} {{convert|354|ft|m|0}} [[TATA Steel]] at [[Hayange]], [[France]]. |
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* (2011) {{flagicon|Austria}} {{convert|394|ft|m|0}} [[Voestalpine]] <ref>http://www.voestalpine.com/schienen/en/products/railway_infrastructure/rails/ultralong_rails.html</ref> |
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* (2011) {{flagicon|India}} {{convert|397|ft|m|0}} [[Jindal Steel and Power|Jindal]] <ref>http://www.jindalsteelpower.com/products/rails.aspx</ref> |
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== Multiples == |
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Newer longer rails tend to be made as simple multiples of older shorter rails, so that old rails can be replaced without cutting. Some cutting would be needed as slightly longer rails are needed on the outside of sharp curves compared to the rails on the inside. |
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== Boltholes == |
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Rails can be supplied pre-drilled with boltholes for [[fishplates]] or without where they will be welded into place. |
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There are usually 2 boltholes or 3 boltholes. |
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== See also == |
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* [[Rail profile]] |
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* [[Tie plate]] |
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* [[Track (rail transport)]] |
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* [[Tramway track]] |
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== References == |
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{{reflist}} |
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{{rail-transport-stub}} |
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[[Category:Rail transport]] |
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Latest revision as of 18:26, 28 October 2021
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