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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 ... [...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 in 1849 at the Belgian Tubiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York, Chicago And St
New or NEW may refer to: Music * New, singer of K-pop group The Boyz * ''New'' (album), by Paul McCartney, 2013 ** "New" (Paul McCartney song), 2013 * ''New'' (EP), by Regurgitator, 1995 * "New" (Daya song), 2017 * "New" (No Doubt song), 1999 * "new", a song by Loona from the 2017 single album '' Yves'' * "The New", a song by Interpol from the 2002 album '' Turn On the Bright Lights'' Transportation * Lakefront Airport, New Orleans, U.S., IATA airport code NEW * Newcraighall railway station, Scotland, station code NEW Other uses * ''New'' (film), a 2004 Tamil movie * New (surname), an English family name * NEW (TV station), in Australia * new and delete (C++), in the computer programming language * Net economic welfare, a proposed macroeconomic indicator * Net explosive weight, also known as net explosive quantity * Network of enlightened Women, an American organization * Newar language, ISO 639-2/3 language code new * Next Entertainment World, a South Korean media c ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR JB Class
The NZR J class was a class of forty 4-8-2 steam locomotives operated by the New Zealand Railways Department (NZR). Although designed to work on the lighter secondary lines, the class was frequently used on mainline express passenger trains as well as freight. When first introduced, the class boasted distinctive streamlining, which was later removed from 1947 onwards for maintenance reasons. Three of this class remained in service until the end of steam operation on 26 October 1971, when they were withdrawn and entered into preservation. This class should not be confused with the earlier J class from 1874. Introduction The J class was primarily designed to be a mixed traffic locomotive that was more powerful than the AB class, being capable of running on the lighter secondary lines while also being able to operate express passenger trains on main routes, which were at the time operated by the larger K class locomotives and the in-production KA and KB classes. The order, ini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR J Class (1939)
The NZR J class was a class of forty 4-8-2 steam locomotives operated by the New Zealand Railways Department (NZR). Although designed to work on the lighter secondary lines, the class was frequently used on mainline express passenger trains as well as freight. When first introduced, the class boasted distinctive streamlining, which was later removed from 1947 onwards for maintenance reasons. Three of this class remained in service until the end of steam operation on 26 October 1971, when they were withdrawn and entered into preservation. This class should not be confused with the earlier J class from 1874. Introduction The J class was primarily designed to be a mixed traffic locomotive that was more powerful than the AB class, being capable of running on the lighter secondary lines while also being able to operate express passenger trains on main routes, which were at the time operated by the larger K class locomotives and the in-production KA and KB classes. The order, i ... [...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 Rail transport in New Zealand, 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 Provinces of New Zealand, provincial governments and some private railways, before all of the provincial operations came under the central New Zealand Ministry of Works, 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 (New Zealand), Minister of Railways. He was often also the Minister of Public Works. Apart from four brief experiments with i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore And Ohio Railroad
The Baltimore and Ohio Railroad was the oldest railroads in North America, oldest railroad in the United States and the first steam engine, steam-operated common carrier. Construction of the line began in 1828, and it operated as B&O from 1830 until 1987, when it was merged into the Chessie System. Its lines are today controlled by CSX Transportation. Founded to serve merchants from Baltimore who wanted to do business with settlers crossing the Appalachian Mountains, the railroad competed with several existing and proposed Central Avenue (Albany, New York), turnpikes and canals, including the Erie Canal, Erie and Chesapeake and Ohio Canal. The railroad began operation in 1830 on a 13-mile line between Baltimore and Ellicott City, Maryland, Elliot's Mill in Maryland. Horse-drawn cars were replaced by steam locomotives the following year. Over the following decades, construction continued westward. During the American Civil War, the railroad sustained much damage but proved cru ... [...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 region, Great Lakes and Mid-Atlantic (United States), Mid-Atlantic regions of the United States. The railroad primarily connected New York metropolitan area, greater New York and Boston in the east with Chicago and St. Louis in the Midwest, along with the intermediate cities of Albany, New York, Albany, Buffalo, New York, Buffalo, Cleveland, Cincinnati, Detroit, Rochester, New York, Rochester and Syracuse, New York, Syracuse. The New York Central was headquartered in the 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 into bankruptcy in 1970 and, with extensive Federal government support, emerged as Conrail in 1976. In 1999, Conrail was broken up, and portions o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chesapeake And Ohio Railway
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 Potter 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. History 19th century The C&O traces its origins to the Louisa Railroad of Louisa County, Virginia, begun in 1836. By 1850, the Louisa was built east to Richmond and west to Charlottesville, and in keeping with its new and larger vision, was renamed the Virginia Central Railroad. The Commonwealth of Virginia owned a portion of Virginia Central stock and financed the Blue Ridge Railroad to accomplish the task of crossing the first mountain barrier to the west. During the American Civil War, the Virginia Central played a key role in several battles but was a target for Federal armies. By 1865, it only had five mile ... [...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, Fuel oil, oil or, rarely, Wood fuel, wood) to heat water in the locomotive's Boiler (power generation), 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 Steam locomotive components, 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 (rail), tender coupled to it. #Variations, 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 of Great Britain an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
