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Union Switch And Signal
Union Switch & Signal (commonly referred to as US&S) was an American company based in Pittsburgh, Pennsylvania, which focused on railway signaling equipment, systems and services. The company was acquired by Ansaldo STS (from 2015, Hitachi Rail STS) in 1988, operating as a wholly-owned company until January 2009, when US&S was renamed "Ansaldo STS USA" to operate as a subsidiary of Ansaldo in the Americas and Asia.Ansaldo STS USA on Ansaldo website (archived, March 8, 2009) History Early years founded Union Switch & Signal Inc. in 1881, consolidating the ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swissvale, Pennsylvania
Swissvale is a borough in Allegheny County, Pennsylvania, Allegheny County, Pennsylvania, east of downtown Pittsburgh. Named for a farmstead owned by James Swisshelm, during the industrial age it was the site of the Union Switch & Signal, Union Switch and Signal Company of George Westinghouse. The population was 8,983 at the 2010 United States Census, 2010 census. In 1940, 15,919 people lived there. Geography Swissvale is located at (40.422304, -79.886185). According to the United States Census Bureau, the borough has a total area of , of which is land and , or 4.76%, is water. Surrounding and adjacent communities Swissvale has six land borders, including Edgewood, Allegheny County, Pennsylvania, Edgewood to the north, Braddock Hills, Pennsylvania, Braddock Hills to the east, North Braddock, Pennsylvania, North Braddock to the southeast, Rankin, Pennsylvania, Rankin to the south, and the Pittsburgh neighborhoods of Regent Square (Pittsburgh), Regent Square and Swisshelm Park ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Railroad Signals
North American railroad signals generally fall into the category of multi-headed electrically lit units displaying ''speed-based'' or ''weak route signaling''. Signals may be of the searchlight, color light, position light, or color position light types, each displaying a variety of aspects which inform the locomotive operator of track conditions so that they may keep their train under control and able to stop short of any obstruction or dangerous condition. There is no national standard or system for railroad signaling in North America. Individual railroad corporations are free to devise their own signaling systems as long as they uphold some basic regulated safety requirements. Due to the wave of mergers that have occurred since the 1960s it is not uncommon to see a single railroad operating many different types of signaling inherited from predecessor railroads. This variety can range from simple differences of hardware to completely different rules and aspects. While there h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boston Elevated Railway
The Boston Elevated Railway (BERy) was a streetcar and rapid transit railroad operated on, above, and below, the streets of Boston, Massachusetts and surrounding communities. Founded in 1894, it eventually acquired the West End Street Railway via lease and merger to become the city's primary mass transit provider. Its modern successor is the state-run Massachusetts Bay Transportation Authority (MBTA), which continues to operate in part on infrastructure developed by BERy and its predecessors. History Originally intended to build a short electric trolley line to Brookline, the West End Street Railway was organized in 1887. By the next year it had consolidated ownership of a number of horse-drawn streetcar lines, composing a fleet of 7,816 horses and 1,480 rail vehicles. As the system grew, a switch to underground pulled-cable propulsion (modeled after the San Francisco cable cars) was contemplated. After visiting Frank Sprague and witnessing the Richmond, Virginia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Train Stop
Part of a railway signalling system, a train stop, trip stop or tripcock (sometimes called a tripper) is a train protection device that automatically stops a train if it attempts to pass a signal when the signal aspect and operating rules prohibit such movement, or (in some applications) if it attempts to pass at an excessive speed. Basic operation The train stop system comprises two basic components. One is the trip arm mechanism, mounted on the ground adjacent to the rail, which essentially consists of a spring-loaded arm connected to an electric motor (or pneumatic cylinder in electro-pneumatic systems). The other is the train-mounted trip cock, which is connected either directly or electrically to the train's braking system. The trip arm is raised automatically whenever a train should be brought to a halt. When the signalling system determines it is safe for the train to proceed, the motor drives the trip arm down to the lowered position. The spring ensures that the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East St
East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fact that east is the direction where the Sun rises: ''east'' comes from Middle English ''est'', from Old English ''ēast'', which itself comes from the Proto-Germanic *''aus-to-'' or *''austra-'' "east, toward the sunrise", from Proto-Indo-European *aus- "to shine," or "dawn", cognate with Old High German ''*ōstar'' "to the east", Latin ''aurora'' 'dawn', and Greek ''ēōs'' 'dawn, east'. Examples of the same formation in other languages include Latin oriens 'east, sunrise' from orior 'to rise, to originate', Greek ανατολή anatolé 'east' from ἀνατέλλω 'to rise' and Hebrew מִזְרָח mizraḥ 'east' from זָרַח zaraḥ 'to rise, to shine'. ''Ēostre'', a Germanic goddess of dawn, might have been a personificatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pneumatics
Pneumatics (from Greek ‘wind, breath’) is a branch of engineering that makes use of gas or pressurized air. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically-powered compressor powers cylinders, air motors, pneumatic actuators, and other pneumatic devices. A pneumatic system controlled through manual or automatic solenoid valves is selected when it provides a lower cost, more flexible, or safer alternative to electric motors, and hydraulic actuators. Pneumatics also has applications in dentistry, construction, mining, and other areas. Gases used in pneumatic systems Pneumatic systems in fixed installations, such as factories, use compressed air because a sustainable supply can be made by compressing atmospheric air. The air usually has moisture removed, and a small quantity of oil is added at the compressor to prevent corrosion and lubricate mechanical components. Factory-plumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interlocking
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junction (rail), junctions or crossings. The signalling appliances and Track (rail transport), tracks are sometimes collectively referred to as an ''interlocking plant''. An interlocking is designed so that it is impossible to display a signal to proceed unless the route to be used is proven safe. Interlocking is a safety measure designed to prevent signals and Railroad switch, points/switches from being changed in an improper sequence. For example interlocking would prevent a signal from being changed to indicate a diverging route, unless the corresponding points/switches had been changed first. In North America, the official railroad definition of interlocking is: "''An arrangement of signals and signal appliances so interconnected that their movements must succeed each other in proper sequence''". Configuration and use A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Position Light Signal US&S
Position often refers to: * Position (geometry), the spatial location (rather than orientation) of an entity * Position, a job or occupation Position may also refer to: Games and recreation * Position (poker), location relative to the dealer * Position (team sports), a player role within a team Human body * Human position, the spatial relation of the human body to itself and the environment ** Position (obstetrics), the orientation of a baby prior to birth ** Positions of the feet in ballet ** Position (music), the location of the hand on a musical instrument ** Proprioception, the sense of the relative position of neighbouring parts of the body ** Asana (yoga), the location and posture of the body while practicing yoga ** Sex position, the arrangement of bodies during sexual intercourse Humanities, law, economics and politics * Philosophical theory, a belief or set of beliefs about questions in philosophy * Position (finance), commitments in a financial marketplace * Social p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batesburg-Leesville, South Carolina
Batesburg-Leesville is a town located in Lexington and Saluda counties, South Carolina, United States. The town's population was 5,362 as of the 2010 census and an estimated 5,415 in 2019. History The town of Batesburg-Leesville was formed in 1992 by the consolidation of the neighboring towns of Batesburg and Leesville. Batesburg was "named for Captain Tom Bates, a prominent citizen of the community and a captain in The American Civil War." Leesville was "named for Colonel John W. Lee, a prominent resident of the community." The D. D. D. Barr House, Batesburg Commercial Historic District, Simon Bouknight House, Cartledge House, Cedar Grove Lutheran Church, Church Street Historic District, Broadus Edwards House, Hampton Hendrix Office, Hartley House, Henry Franklin Hendrix House, Thomas Galbraith Herbert House, J.B. Holman House, A.C. Jones House, Leesville College Historic District, Crowell Mitchell House, McKendree Mitchell House, Mitchell-Shealy House, Old Batesburg Gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hitachi
() is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Nissan Group, Nissan ''zaibatsu'' and later DKB Group and Fuyo Group of companies before DKB and Fuji Bank (the core Fuyo Group company) merged into the Mizuho Financial Group. As of 2020, Hitachi conducts business ranging from Information technology, IT, including Artificial intelligence, AI, the Internet of things, Internet of Things, and big data, to infrastructure. Hitachi is listed on the Tokyo Stock Exchange and Nagoya Stock Exchange and its Tokyo listing is a constituent of the Nikkei 225 and TOPIX Core30 indices. It is ranked 38th in the 2012 Fortune Global 500 and 129th in the 2012 Forbes Global 2000. History Hitachi was founded in 1910 by electrical engineer Namihei Odaira (1874–1951) in Ibaraki Prefecture. The company's firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasdaq
The Nasdaq Stock Market () (National Association of Securities Dealers Automated Quotations Stock Market) is an American stock exchange based in New York City. It is the most active stock trading venue in the US by volume, and ranked second on the list of stock exchanges by market capitalization of shares traded, behind the New York Stock Exchange. The exchange platform is owned by Nasdaq, Inc., which also owns the Nasdaq Nordic stock market network and several U.S.-based stock and options exchanges. History 1971–2000 "Nasdaq" was initially an acronym for the National Association of Securities Dealers Automated Quotations. It was founded in 1971 by the National Association of Securities Dealers (NASD), now known as the Financial Industry Regulatory Authority (FINRA). On February 8, 1971, the Nasdaq stock market began operations as the world's first electronic stock market. At first, it was merely a "quotation system" and did not provide a way to perform electronic trade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of stock which are intended to be freely traded on a stock exchange or in over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states, and therefore have associations and formal designations which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation (though a corporation need not be a public company), in the United Kingdom it is usually a public limited company (plc), i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
