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By 1981, the drums were mainly a two-piece plastic design that included the top piece of the drum and a base that was filled with sandbags. The same year, an updated version of the invention was released by PSS ; it included a flange to allow sandbag placement on the outside of the drum which made it easier to maneuver. [ 6 ]
A 200-litre drum (known as a 55-gallon drum in the United States and a 44-gallon drum in the United Kingdom and the rest of the world) is a cylindrical container with a nominal capacity of 200 litres (55 US or 44 imp gal). The exact capacity varies by manufacturer, purpose, or other factors.
Another consideration is the maximum weight of a train. A maximum length train in Europe, 750 m (2,461 ft) long can have 50 container cars with a total weight of 2,250 tonnes (2,480 short tons; 2,210 long tons), and more if 20 ft containers are included. This is not far from the limit using standard European (freight) couplers. [citation needed]
Earlier I suggested that "55-gallon drum" might just be a description, not a name, but since then I have discovered the two military specs referenced in the article. Since I now know that "55-gallon drum" is short-hand for a whole set of standardized dimensions, I view it as a name and believe it should be listed first even in an SI-first article.
Hose for conveying force to train brakes by a differential in air pressure. Contains either high-pressure compressed air or air at lower than atmospheric pressure (vacuum), depending on whether the locomotive has an air brake or vacuum brake system. [6]: 483–486 [3]: 1 Water compartment Tank for water to be used by the boiler to produce steam.
This article contradicts 44 gallon drum —The preceding unsigned comment was added by 68.162.29.10 00:41, 31 March 2007 (UTC). "Drums such as these have a standard nominal volume of 55 US gallons (44 Imperial gallons) and are referred to properly as 55 gallon drums" contradicts the title of 44 gallon drum . An online converter states:
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An orthotropic bridge or orthotropic deck is typically one whose fabricated deck consists of a structural steel deck plate stiffened either longitudinally with ribs or transversely, or in both directions. This allows the fabricated deck both to directly bear vehicular loads and to contribute to the bridge structure's overall load-bearing behaviour.