Detector bar

Detector bar
Detector bar De*tect"or bar (Railroads) A bar, connected with a switch, longer than the distance between any two consecutive wheels of a train (45 to 50 feet), laid inside a rail and operated by the wheels so that the switch cannot be thrown until all the train is past the switch. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • detector bar — noun : a device used to keep a railroad switch locked in position while a train is passing over it …   Useful english dictionary

  • Bar-Kochba — (Shimeon bar Kosiba) (1–2 century)    Leader of second Jewish revolt, 132–5. Bar Kochba survives in the collective Jewish memory as a national hero and, next to Judas Maccabeus, a symbol of the constant struggle for liberation from imperial… …   Who’s Who in Jewish History after the period of the Old Testament

  • CLEO (particle detector) — CLEO was a general purpose particle detector at the Cornell Electron Storage Ring (CESR), and the name of the collaboration of physicists who operated the detector. The name CLEO is not an acronym; it is short for Cleopatra and was chosen to go… …   Wikipedia

  • Metal detector — A U.S. Army soldier uses a metal detector to search for weapons and ammunition in Iraq A metal detector is a device which responds to metal that may not be readily apparent. The simplest form of a metal detector consists of an oscillator… …   Wikipedia

  • Nerf bar — For other uses, see Nerf (disambiguation). A 2002 Ford Explorer Sport Trac with black nerf bars. A nerf bar is a tubular device fitted to the side of a racecar, typically single seat race cars that compete on asphalt or dirt oval tracks. A nerf… …   Wikipedia

  • L9 Bar Mine — For the Soviet diplomat see Alexander Gregory Barmine Bar mine L9 is a large rectangular British anti tank landmine. The bar mine s principal advantage is its long length a typical anti tank landmine is circular, and for it to activate a vehicle… …   Wikipedia

  • Charles Rood Keeran — circa 1910 1920 Charles Rood Keeran (16 April 1883 June 9, 1948) was an Illinois inventor and businessman. Contents 1 Biography …   Wikipedia

  • wii — 1. (wii) (2593↑, 803↓) Wii is the release name of the console codenamed Revolution by Nintendo Corporation due to be released in 2006. It is pronounced similar to we . I m going to play with my Wii. Author: Dude, where s my bagel?… …   Urban English dictionary

  • rail clip — noun 1. : a metal plate projecting over the base of a rail for bolting the rail to its support 2. : an anchor for fastening the rear of a derrick car or a crane to the rails of a track to keep the crane from tipping while lifting a heavy load 3 …   Useful english dictionary

  • barretter — /bar et euhr, beuh ret /, n. Electronics. a form of detector or control device employing a resistor that varies in proportion to its temperature. [1900 05; of uncert. orig.; supposed connection with BARRATOR is unclear] * * * …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”