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Plate rail was an early type of rail and had an 'L' cross-section in which the flange kept an unflanged wheel on the track. The flanged rail has seen a minor revival in the 1950s, as guide bars , with the Paris Métro ( Rubber-tyred metro or French Métro sur pneus ) and more recently as the Guided bus .
Current versions of these codes and standards now agree that handrail is defined as either a circular cross section with an outside diameter of 1 + 1 ⁄ 4 inches (32 mm) minimum and 2 inches (51 mm) maximum or a non-circular cross section with a perimeter dimension of 4 inches (102 mm) minimum and 6 + 1 ⁄ 4 inches (159 mm) maximum and a ...
Crosslevel (or 'cross level') is the measurement of the difference in elevation (height) between the top surface of the two rails at any point of railroad track. The two points (each at the head of each rail) are measured at by the right angles to the reference rail. Since the rail can slightly move up and down, the measurement should be done ...
Cross-sections of rail. Left: flat-bottomed rail, which is spiked, screwed or clipped directly to a sleeper (CwthE) or crosstie (AE), or through a steel baseplate, which protects the sleeper. Right: bullhead rail, an older design used mainly in the UK, which sits in a cast-iron chair with a timber or spring-steel key to keep it secure.
The cross section at the bottom of the well car differs from the X section of all other AAR plates. X section at center of car [31] [35] [34] Width of 10 feet 8 inches (3.25 m) only possible at the trucks [31] 10 1 3.07 [31] 20 3 6.17: 63 9 19.43: e.g. Including the height of double stacked containers in well cars.
This format is now in place over 99% of the first-class main lines in Britain, although the CEN60 (60 kg/m) rail section was introduced in the UK during the 1990s. This has a wider rail foot and is taller than the 113A section so is incompatible with standard sleepers. Track renewal trains have now replaced labour-intensive permanent way gangs ...
Cross section of early T rail, chair and key. The earliest rail chairs, made of cast iron and introduced around 1800, were used to fix and support cast-iron rails at their ends; [2] they were also used to join adjacent rails. [35]
Vignoles rail; Flanged R rail; Grooved rail; Bar, a long piece with a rectangular cross section, but not so wide so as to be called a sheet. Rod, a round or square section long compared to its width; see also rebar and dowel. Plate, metal sheets thicker than 6 mm or 1 ⁄ 4 in. Open web steel joist; While many sections are made by hot or cold ...
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