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Baker Valve Gear
After about 1910, the Baker valve gear was the main competitor to Walschaerts valve gear for steam locomotives in the United States. Strictly speaking it was not a valve gear but a variable expansion mechanism adapted to the Walschaerts layout replacing the expansion link and sliding die block. The Baker arrangement used more pivot bearings or ''pin joints'', but avoided the die slip inherent to the expansion link, with the aim of lessening wear and the need for service; it could also facilitate longer valve travel. History In the early 1900s there were many efforts to create a new valve gear to replace the by-then-standard Walschaerts valve gear. In the United States the Young, Southern, Caprotti and Franklin patterns were used on a few classes, but only the Baker pattern won more than limited acceptance. The design originated in the A.D. Baker Company, of Swanton, Ohio; a builder of steam traction engines. The idea came from an employee called Gifford but was developed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walschaerts Valve Gear
The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgium, Belgian railway mechanical engineering, engineer Egide Walschaerts in 1844. The gear is sometimes named without the final "s", since it was incorrectly patented under that name. It was extensively used in steam locomotives from the late 19th century until the end of the steam era. History The Walschaerts valve gear was slow to gain popularity. The Stephenson valve gear remained the most commonly used valve gear on 19th-century locomotives. However, the Walschaerts valve gear had the advantage that it could be mounted entirely on the outside of the locomotives, leaving the space between the locomotive frame, frames clear and allowing easy access for service and adjustment, which resulted in it being adopted in some articulated locomotives. The first locomotive fitted with the Walschaerts valve gear was built at the Belgian Tubize worksh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York, Chicago And St
New is an adjective referring to something recently made, discovered, or created. New or NEW may refer to: Music * New, singer of K-pop group The Boyz Albums and EPs * ''New'' (album), by Paul McCartney, 2013 * ''New'' (EP), by Regurgitator, 1995 Songs * "New" (Daya song), 2017 * "New" (Paul McCartney song), 2013 * "New" (No Doubt song), 1999 *"new", by Loona from '' Yves'', 2017 *"The New", by Interpol from ''Turn On the Bright Lights'', 2002 Acronyms * Net economic welfare, a proposed macroeconomic indicator * Net explosive weight, also known as net explosive quantity * Network of enlightened Women, a conservative university women's organization * Next Entertainment World, a South Korean film distribution company Identification codes * Nepal Bhasa language ISO 639 language code * New Century Financial Corporation (NYSE stock abbreviation) * Northeast Wrestling, a professional wrestling promotion in the northeastern United States Transport * New Orleans Lakefront Ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Australian Railways 620 Class
The South Australian Railways 620 class was a class of 4-6-2 steam locomotives operated by the South Australian Railways. History The completion of the South Australian Railway (SAR) broad gauge route between Adelaide and Port Pirie created a need for a fast, light passenger locomotive to haul this service, as well as other traffic on the lightly laid rail branch lines of the SAR. The specification included the ability to haul a train up a 1-in-45 (2.2%) grade at . Fred Shea, Chief Mechanical Engineer of the SAR designed a Pacific type. A notable feature of the design, unique to South Australian Railways, was the use of Baker valve gear in lieu of the more common Walschaerts valve gear. The first locomotive was completed at the Islington Railway Workshops in 1936, with the last completed in 1938. Class leader 620 was also notable for being Australia's first streamlined locomotive, the smokebox being covered with a chromed steel grille similar to those fitted to motor cars o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR KA Class
The NZR KA class of 1939 was a class of mixed traffic 4-8-4 steam locomotives that operated on New Zealand's railway network. They were built after the success of the K class to meet the increasing traffic demands of the New Zealand Railways Department. The locomotives first appeared with distinctive streamlining, mainly to hide their ACFI feedwater heater systems. History Following the success of the K class, there was a need for more similar locomotives in the North Island. The new locomotives incorporated a number of improvements, including a re-designed plate frame to eliminate the cracking issues the K class were experiencing; roller bearings on all wheels; hydrostatic lubrication throughout; and the inclusion of the ACFI feedwater heater system as pioneered by K 919. As the ACFI equipment was criticised for its aesthetic appearance, it was obscured with shrouding fitted to both the KA class and contemporary KB class. Building of the locomotives commenced in 1939, jus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR JB Class
The NZR J class steam locomotives were a type of 4-8-2 steam locomotive built for the New Zealand Railways Department (NZR) and used on the New Zealand railway network. Built by the North British Locomotive Works, although designed to work on the lighter secondary lines the class was frequently used on mainline express passenger trains as well as freight. The class first appeared in distinctive streamlining, which was later removed from 1947 onwards for maintenance reasons. The class should not be confused with the earlier 1874 J class. Three J class lasted until the end of steam-hauled services on 26 October 1971, three locomotives of the forty built have been preserved. History The J class were primarily designed to provide a mixed traffic locomotive more powerful than the AB class that was capable of running on the lighter secondary lines of the New Zealand Railways network, but was equally capable of running express passenger trains on main routes which were being operated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR JA Class
The NZR JA class were a type of 4-8-2 steam locomotive used on the New Zealand railway network. The class was built in two batches, the first batch was built at Dunedin's Hillside Workshops between 1946 and 1956 and the second batch by the North British Locomotive Works in 1951. To distinguish between the batches, locomotives are identified by their maker. The JA class was the last class of steam locomotive built both for and by New Zealand Railways (NZR). Hillside built JA 1274 was the last steam locomotive ever built by NZR, and the North British JAs were the last steam locomotives built overseas for the NZR. The class had relatively short lives of between 12 and 24 years, as they were replaced by diesel locomotives as part of NZR's dieselisation process. Nine JAs lasted until the end of steam on 26 October 1971. Hillside JA of 1946 History The class were an improved version of the J class locomotives. Unlike the J class, which were built overseas by the North British Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR J Class (1939)
The New Zealand Railways Department, NZR J class steam locomotives were a type of 4-8-2 steam locomotive built for the New Zealand Railways Department (NZR) and used on the Rail transport in New Zealand, New Zealand railway network. Built by the North British Locomotive Works, although designed to work on the lighter secondary lines the class was frequently used on mainline express passenger trains as well as freight. The class first appeared in distinctive streamlining, which was later removed from 1947 onwards for maintenance reasons. The class should not be confused with the earlier 1874 NZR J class (1874), J class. Three J class lasted until the end of steam-hauled services on 26 October 1971, three locomotives of the forty built have been preserved. History The J class were primarily designed to provide a mixed traffic locomotive more powerful than the AB class that was capable of running on the lighter secondary lines of the New Zealand Railways network, but was equally cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Railways Department
The New Zealand Railways Department, NZR or NZGR (New Zealand Government Railways) and often known as the "Railways", was a government department charged with owning and maintaining New Zealand's railway infrastructure and operating the railway system. The Department was created in 1880 and was corporatised on 1 April 1982 into the New Zealand Railways Corporation. Originally, railway construction and operation took place under the auspices of the former provincial governments and some private railways, before all of the provincial operations came under the central Public Works Department. The role of operating the rail network was subsequently separated from that of the network's construction. From 1895 to 1993 there was a responsible Minister, the Minister of Railways. He was often also the Minister of Public Works. Apart from four brief experiments with independent boards, NZR remained under direct ministerial control for most of its history. History Originally, New Zea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore And Ohio Railroad
The Baltimore and Ohio Railroad was the first common carrier railroad and the oldest railroad in the United States, with its first section opening in 1830. Merchants from Baltimore, which had benefited to some extent from the construction of the National Road early in the century, wanted to do business with settlers crossing the Appalachian Mountains. The railroad faced competition from several existing and proposed enterprises, including the Albany-Schenectady Turnpike, built in 1797, the Erie Canal, which opened in 1825, and the Chesapeake and Ohio Canal. At first, the B&O was located entirely in the state of Maryland; its original line extending from the port of Baltimore west to Sandy Hook, Maryland, opened in 1834. There it connected with Harper's Ferry, first by boat, then by the Wager Bridge, across the Potomac River into Virginia, and also with the navigable Shenandoah River. Because of competition with the C&O Canal for trade with coal fields in western Maryland, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Central Railroad
The New York Central Railroad was a railroad primarily operating in the Great Lakes and Mid-Atlantic regions of the United States. The railroad primarily connected greater New York and Boston in the east with Chicago and St. Louis in the Midwest, along with the intermediate cities of Albany, Buffalo, Cleveland, Cincinnati, Detroit, Rochester and Syracuse. New York Central was headquartered in New York City's New York Central Building, adjacent to its largest station, Grand Central Terminal. The railroad was established in 1853, consolidating several existing railroad companies. In 1968, the NYC merged with its former rival, the Pennsylvania Railroad, to form Penn Central. Penn Central went bankrupt in 1970 and merged into Conrail in 1976. Conrail was broken-up in 1999, and portions of its system were transferred to CSX and Norfolk Southern Railway, with CSX acquiring most of the old New York Central trackage. Extensive trackage existed in the states of New York, Pennsyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chesapeake And Ohio Railroad
The Chesapeake and Ohio Railway was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P. Huntington, it reached from Virginia's capital city of Richmond to the Ohio River by 1873, where the railroad town (and later city) of Huntington, West Virginia, was named for him. Tapping the coal reserves of West Virginia, the C&O's Peninsula Extension to new coal piers on the harbor of Hampton Roads resulted in the creation of the new City of Newport News. Coal revenues also led the forging of a rail link to the Midwest, eventually reaching Columbus, Cincinnati and Toledo in Ohio and Chicago, Illinois. By the early 1960s the C&O was headquartered in Cleveland, Ohio. In 1972, under the leadership of Cyrus Eaton, it became part of the Chessie System, along with the Baltimore and Ohio and Western Maryland Railway. The Chessie System was later combined with the Seaboard Coast Line and Louisvil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam is admitted alternately to each end of its cylinders, in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a tender coupled to it. Variations in this general design include electrically-powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in the United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century. Richard Trevithick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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