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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 ] In the 1830s rolled T-shaped (or single-flanged T parallel rail ) and I-shaped (or double-flanged T parallel or bullhead ) rails were introduced; both required ...
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A rail system mounted on top of a SIG SG 550 A dovetail rail on a rifle receiver for mounting a sight. A rail integration system (RIS; also called a rail accessory system (RAS), rail interface system, rail system, mount, base, gun rail, or simply a rail [1]) is a generic term for any standardized attachment system for mounting firearm accessories via bar-like straight brackets (i.e. "rails ...
A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.
The Tomlinson coupler is the most widely used fully automatic heavy rail coupling in North America having been adopted by the Washington Metro, Massachusetts Bay Transportation Authority, PATCO Speedline, SEPTA Broad Street Subway, Los Angeles Metro Rail, Baltimore Metro, Miami Metro, MARTA Rail and the New York City Subway for its R44/R46 ...
Arris CM8200(B) DOCSIS 3.0: 0: 2: Cable modem: Only one UNI-D port (UNI-D 1) is supported for use. Fixed wireless: Alcatel-Lucent: LTE: 0: 4: NBN connection box or indoor unit (IDU) or 4G modem: Where a plain old telephone service (POTS) is in place, this can be kept Satellite: ViaSAT Residential Broadband Terminal 1240: 0: 4: Indoor unit (IDU)
General view of part of the rip tracks at the Chicago and North Western Transportation Company Proviso Yard, Chicago, Ill. April 1943. A RIP track, short for repair in place track, [1] [2] (also known as a "cripple track" in slang terms) is a designated track, or tracks, in a rail yard or a siding along a section of a main rail line where locomotives and/or railroad cars can be placed for ...
As 19-inch equipment has a maximum width of 17 + 1 ⁄ 4 inches (438.15 mm), they can easily be mounted in an ETSI rack by means of an ETSI bracket or adapter plate. In contrast to the 19-inch standards, ETSI also defined the size of the rack enclosure: the four allowed widths are 150, 300, 600, 900 millimetres (5.9, 11.8, 23.6, 35.4 in) and ...