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LDE – Richard Hartmann To Zwickau
The RICHARD HARTMANN to ZWICKAU series of early German locomotives were express train tender locomotives operated by the Leipzig–Dresden Railway Company (''Leipzig-Dresdner Eisenbahn'' or''LDE''). History The three locomotives were delivered to the LDE in 1849 by Hartmann of Chemnitz with works numbers 11 to 13. They were given the names ''RICHARD HARTMANN'', ''CHEMNITZ'' and ''ZWICKAU''. The engines were retired in 1865 and 1868. Technical features The boiler was rivetted from several sections. The outer firebox was equipped with a semi-circular dome that extended forward over the boiler barrel and acted as a steam collection space. The two spring balance safety valves were located on the dome of the outer firebox. The steam cylinders were located externally, unlike those on English locomotives, which avoided the need for a cranked axle that would have been expensive and difficult to manufacture. The steam engine was equipped with inside Stephenson valve gear. The locom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sächsische Maschinenfabrik
The Sächsische Maschinenfabrik in Chemnitz was one of the most important engineering companies in Saxony in the second half of the 19th century and the first two decades of the 20th century. Including its various predecessor businesses, the firm existed from 1837 until its liquidation in 1930, and individual branches of the company taken over by others continued to operate until 1990. The company is closely linked with the name of its founder and long-time manager, Richard Hartmann, whose name formed part of the new company title in 1898: the ''Sächsische Maschinenfabrik vormals Richard Hartmann'' ('Saxon Engineering Factory, formerly Richard Hartmann'). Major products The main aim of the business was the development, design and production of: * Spinning machines (1837–1998) * Locomotives (1848–1929) * Steam engines * Turbines * Mill equipment * Military technology (about 1910–1918) No less than 4,699 locomotives were built by the company between 1848 and 1929. The maj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirchweger Condenser
The purpose of the Kirchweger condenser (German: ''Kirchweger-Kondensationseinrichtung'' or ''Kirchwegersche Abdampfkondensation'') was to preheat feedwater in a steam locomotive using the exhaust steam from the engine. It was invented in 1850 by Heinrich Kirchweger. A similar system was developed by Rohrbeck. Overview Exhaust steam was extracted from the steam chest and fed through a 100 mm diameter pipe under the locomotive to the tender. There the steam was fed directly into the feedwater, which thus heated up to boiling point. The remaining steam was allowed to escape to atmosphere through a second chimney on the tender. The quantity of steam could be regulated using a cock on the tender. The Rohrbeck system differed in detail from the Kirchweger condenser, in which steam was removed at the blast pipe and led away along the top of the boiler. The system was regulated by a throttle valve on the blast pipe. Fuel savings Using such a system, fuel savings of between 10 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Locomotives Introduced In 1849
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer faciliti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotives Of Saxony
A locomotive or engine is a rail transport vehicle that provides the motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, motor coach, railcar or power car; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight (see CargoSprinter). Traditionally, locomotives pulled trains from the front. However, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end. Most recently railroads have begun adopting DPU or distributed power. The front may have one or two locomotives followed by a mid-train locomotive that is controlled remotely from the lead unit. __TOC__ Etymology The word ''locomotive'' originates from the Latin 'from a place', ablative of 'place', and the Medieval Latin 'causing motion', and is a shortened form of the term ''locomotive engine'', which was first us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-2-2 Locomotives
The hyphen-minus is the most commonly used type of hyphen, widely used in digital documents. It is the only character that looks like a minus sign or a dash in many character sets such as ASCII or on most keyboards, so it is also used as such. The name "hyphen-minus" derives from the original ASCII standard, where it was called "hyphen(minus)". The character is referred to as a "hyphen", a "minus sign", or a "dash" according to the context where it is being used. Description In early monospaced font typewriters and character encodings, a single key/code was almost always used for hyphen, minus, various dashes, and strikethrough, since they all have a roughly similar appearance. The current Unicode Standard specifies distinct characters for a number of different dashes, an unambiguous minus sign ("Unicode minus") at code point U+2212, and various types of hyphen including the unambiguous "Unicode hyphen" at U+2010 and the hyphen-minus at U+002D. When a hyphen is called for, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Saxon Locomotives And Railbuses
This list contains the locomotives and railbuses of the Royal Saxon State Railways (''Königlich Saxon Staatseisenbahnen'') and the locomotives of the Leipzig–Dresden Railway Company. Leipzig-Dresden Railway The Leipzig–Dresden Railway Company (''Leipzig-Dresdner Eisenbahn'' or ''LDE'') started up its operations between 1837 and 1839, successively opening its sections of line, and was therefore the first German long distance railway. It remained independent for nearly three decades and was only absorbed into the Royal Saxon State Railways on 1 June 1876. The LDE locomotives were only classified by name. Royal Saxon State Railways Description of the Locomotives Initially all locomotives were classified by name as was common practice. This was usual on all engines up to 1892. From 1893 to 1900 only passenger and express train locomotives still carried name plates. Thereafter name plates on all locomotives, apart from old shunting and branch line engines, were remo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Saxon State Railways
The Royal Saxon State Railways (german: Königlich Sächsische Staatseisenbahnen) were the state-owned railways operating in the Kingdom of Saxony from 1869 to 1918. From 1918 until their merger into the Deutsche Reichsbahn the title 'Royal' was dropped and they were just called the Saxon State Railways (''Sächsische Staatseisenbahnen''). History En route to a state railway After the completion of the privately financed Leipzig–Dresden railway in 1839, the Saxon parliament also began to get involved in railway construction. Early on it was recognised that railway lines to Bavaria, Bohemia and Silesia were needed and that there ought to be a route running north-to-south through the kingdom. The funding of this plan lay in the hands of privately financed railway committees. The state, however, saw itself arranging for the corresponding political and legal hurdles to be cleared. On 14 January 1841 a treaty was agreed with the Kingdom of Bavaria and the Duchy of Saxony-Altenbu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feedwater
Boiler feedwater is an essential part of boiler operations. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used it is then dumped to the main condenser. From the condenser it is then pumped to the deaerated feed tank. From this tank it then goes back to the steam drum to complete its cycle. The feed water is never open to the atmosphere. This cycle is known as a closed system or Rankine cycle. History of feedwater treatment During the early development of boilers, water treatment was not so much of an issue, as temperatures and pressures were so low that high amounts of scale and rust would not form to such a significant extent, especially if the boiler was “ blown down”. It was general practice to install zinc plates and/or alkaline chemicals to reduce corrosion within the boiler. Many tests had been performed to determine the cause (and possible protection) from corrosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephenson Valve Gear
The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds of steam engines. It is named after Robert Stephenson but was invented by his employees. Historical background During the 1830s, the most popular valve drive for steam locomotives was known as '' gab motion'' in the United Kingdom and'' V-hook motion'' in the United States. The gab motion incorporated two sets of eccentrics and rods for each cylinder; one eccentric was set to give forward and the other backwards motion to the engine and one or the other could accordingly engage with a pin driving the distribution valve by means of the gabs: - vee-shaped ends to the eccentric rods supposed to catch the rocker driving the valve rod whatever its position. It was a clumsy mechanism, difficult to operate, and only gave fixed valve events. In 1841, two employees of Robert Stephenson and Company, draughtsman William Howe and patte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemnitz
Chemnitz (; from 1953 to 1990: Karl-Marx-Stadt , ) is the third-largest city in the German state of Saxony after Leipzig and Dresden. It is the 28th largest city of Germany as well as the fourth largest city in the area of former East Germany after (East) Berlin, Leipzig and Dresden. The city is part of the Central German Metropolitan Region, and lies in the middle of a string of cities sitting in the densely populated northern foreland of the Elster and Ore Mountains, stretching from Plauen in the southwest via Zwickau, Chemnitz and Freiberg to Dresden in the northeast. Located in the Ore Mountain Basin, the city is surrounded by the Ore Mountains to the south and the Central Saxon Hill Country to the north. The city stands on the Chemnitz River (progression: ), which is formed through the confluence of the rivers Zwönitz and Würschnitz in the borough of Altchemnitz. The name of the city as well as the names of the rivers are of Slavic origin. Chemnitz is the third larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder (locomotive)
The cylinder is the power-producing element of the steam engine powering a steam locomotive. The cylinder is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends of the cylinder. Cylinders were cast in iron and later made of steel. The cylinder casting includes other features such as (in the case of the early Rocket locomotive) valve ports and mounting feet. The last big American locomotives incorporated the cylinders as part of huge one-piece steel castings that were the main frame of the locomotive. Renewable wearing surfaces were needed inside the cylinders and provided by cast-iron bushings. The way the valve controlled the steam entering and leaving the cylinder was known as steam distribution and shown by the shape of the indicator diagram. What happened to the steam inside the cylinder was assessed separately from what happened in the boiler and how much friction the moving machinery had to cope with. This assessment was known as "e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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