train control relay
21Railway air brake — Piping diagram from 1920 of a Westinghouse E T Air Brake system on a locomotive …
22postal system — System that allows persons to send letters, parcels, or packages to addressees in the same country or abroad. Postal systems are usually government run and paid for by a combination of user charges and government subsidies. There are early… …
23ER2 electric trainset — ER2 ELECTRIC TRAINSETSince 1962 Railroad Machinery Plants of Riga and Kalinin started to release ER2 electric trainsets instead of ER1. ER2 cars have footboards for low platforms, and aprons for high platforms (installed in train yards.) The… …
24Baltimore and Ohio Railroad — Infobox SG rail railroad name=Baltimore and Ohio Railroad logo filename=Baltimore and Ohio Herald.png logo size=100 system map size =260 map caption =1876 B O map old gauge= marks=BO locale=New York City, New York via Philadelphia, Pennsylvania,… …
25Beijing 2008 Olympic Games: Mount Olympus Meets the Middle Kingdom — Introduction officially Games of the XXIX Olympiad The Games of the XXIX Olympiad, involving some 200 Olympic committees and as many as 13,000 accredited athletes competing in 28 different sports, were auspiciously scheduled to begin at 8 …
26Promelectronica — Infobox Company company name = R P Centre «Promelectronica» company company type = The closed joint stock company company slogan = founder = foundation = 1991 in Ekaterinburg, Russia location = Ekaterinburg key people = Igor Tilk, Director… …
27Distributed power — In rail transport distributed power refers to the placing of additional locomotives at intermediate points in the middle of the train, remotely controlled from the leading locomotive, to allow longer trains where operational considerations or… …
28Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …
29India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
30Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
