|
Schwartzkopff-Eckhardt II Bogie
A Schwartzkopff-Eckhardt II bogie (Schwartzkopff-Eckhardt-II-Lenkgestell or Schwartzkopff-Eckhardt-Gestell) is a mechanical device to improve the curve running of steam locomotives. The Schwartzkopff-Eckhardt II bogie is a further refinement of the Krauss-Helmholtz bogie, whereby two coupled axles and the carrying axle are combined within the bogie. The carrying axle steers the second coupled axle via a long shaft and this also moves the first coupled axle via a Beugniot lever. This bogie is used on the DRG Class 84. Whether DR Class 99.23-24 locomotives were also fitted with this arrangement is not entirely clear. It was named after the L. Schwartzkopff locomotive factory and its chief engineer, Friedrich Wilhelm Eckhardt. See also * DRG Class 84 * DR Class 99.23-24 References *Friedrich Wilhelm Eckhardt: ''Das Fahrgestell der Dampflokomotiven'', Transpress, Berlin 1960 *Friedrich Wilhelm Eckhardt: ''Lokomotivkunde. H. 5. Das Fahrgestell der Dampflokomotiven'', Fachbuc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotives
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 bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krauss-Helmholtz Bogie
A Krauss-Helmholtz bogie (''Krauss-Helmholtz-Lenkgestell'') is a mechanism used on steam locomotives and some electric locomotives to improve curve running. Operation The bogie comprises a carrying axle connected to a coupled axle via a shaft or lever. In straight running, any radial movement of the carrying axle results in a sideways movement of the coupled axle in the opposite direction. However, the carrying axle is centred by means of two heavy duty springs just behind it. In addition the pivot pin may be allowed to move sideways, but again is held centrally by heavy springs. When travelling round a curve, the carrying axle swings to one side causing the coupled axle to move sideways in the opposite direction. In this way radial forces during curve running are more or less evened out on both axles, so that riding qualities similar to those of a normal bogie are achieved and wear and tear reduced on wheel flanges and rails. The bogie is a type of pony truck and was name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coupled Axles
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods (also known as coupling rods); normally one pair is directly driven by the main rod (or connecting rod) which is connected to the end of the piston rod; power is transmitted to the others through the side rods. On diesel and electric locomotives, the driving wheels may be directly driven by the traction motors. Coupling rods are not usually used, and it is quite common for each axle to have its own motor. Jackshaft drive and coupling rods were used in the past (e.g. in the Swiss Crocodile locomotive) but their use is now confined to shunting locomotives. On an articulated locomotive or a duplex locomotive, driving wheels are grouped into sets which are linked together within the set. Diameter Driving wheels are g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrying Axle
A carrying wheel on a steam locomotive is a wheel that is not driven; i.e., it is uncoupled and can run freely, unlike a coupled or driving wheel. It is also described as a running wheelWörterbuch der Industriellen Technik, Dr.-Ing. Richard Ernst, Oscar Brandstetter Verlag, Wiesbaden, 5. Auflage, 1989, . and their axle may be called a carrying axle. A carrying wheel is referred to as leading wheel if it is at the front, or a trailing wheel if it is at the rear of the locomotive. Weight distribution In particular reference to steam engines, the carrying wheels have a very important purpose of allowing the engine's weight distribution to be altered. For example in the use of leading wheels it would allow the boiler to be located further forward of the driving wheels, the weight of which counters the leverage imposed by the drawbar and the load of the pulled wagons/cars about the fulcrum of the rearmost driving wheel. Similarly the trailing wheels can move the fulcrum to the rearmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bogie
A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as the dolly in a road train or in railway bogie exchange); it may contain a suspension within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as most bogies of tracked vehicles are); it may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies). In Scotland, the term is used for a child’s (usually home-made) wooden cart. While ''bogie'' is the preferred spelling and first-listed variant in various dictionaries, bogey and bogy are also used. Rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beugniot Lever
The Beugniot lever (''Beugniot-Hebel'') is a mechanical device used on a number of locomotives to improve curve running. It was named after its inventor Édouard Beugniot. Overview Around 1860, when Beugniot was the chief engineer at the firm of André Koechlin & Cie. in Mulhouse, he developed a system whereby wheelsets are housed in pairs in the locomotive frame, with side-play, and connected by a lever. These levers are fixed to the frame in the centre and thus enable the sideways movement of the connected axles in opposite directions. In this way, instead of being fixed in the frame, the axles are able to move sideways rather like a bogie, but clearly nowhere near as much. On locomotives with a side rod drive, the axle side-play is balanced using longer coupling pins (''Kuppelzapfen'') on which the coupling rods are also able to move sideways. Operation On running round a bend, the first axle is pushed sideways by the curve of the rails and so moves the second axle parall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class 84
The German DRG Class 84s were standard (see ''Einheitsdampflokomotive'') goods train tank locomotives with the Deutsche Reichsbahn. A total of twelve engines were placed into service by the Reichsbahn between 1935 and 1937. The machines were given operating numbers 84 001–012. They were worked on the Müglitz Valley Railway (''Müglitztalbahn'') between Heidenau and Altenberg in the Ore Mountains (''Erzgebirge''), for which they were specially designed to negotiate tight curves. They were manufactured by the firms of Schwartzkopff and Orenstein & Koppel. One feature was that they were fitted with Schwartzkopff-Eckhardt II bogies. In the Second World War many of the engines were damaged and had to be sidelined as a result. The vehicles were taken over by the DR in East Germany after the war. The engines were mainly used between Schwarzenberg and Johanngeorgenstadt. Between 1966 and 1968 all the Class 84 engines were retired apart from one. None, however, has survived. See al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DR Class 99
Class 99 is the classification of German narrow gauge locomotives used by the Deutsche Reichsbahn or her successor administrations. It is therefore divided into numerous sub-classes that are listed in this table. Bibliography * Weisbrod, Manfred, Hans Müller and Wolfgang Petznik (1995). ''Dampflokomotiven deutscher Eisenbahnen. Band 4: Baureihe 99''. Berlin: Transpress. See also {{Commons category, DRG Class 99 * Deutsche Reichsbahn * Deutsche Bundesbahn * Deutsche Reichsbahn (GDR) * List of DRG locomotives and railcars * Einheitsdampflokomotive Narrow gauge locomotives Deutsche Reichsbahn-Gesellschaft locomotives, 99 Deutsche Bundesbahn locomotives, 99 Deutsche Reichsbahn (East Germany) locomotives, 99 Steam locomotives of Germany, 99 German railway-related lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berliner Maschinenbau
Berliner Maschinenbau AG was a German manufacturer of locomotives. The factory was founded by Louis Victor Robert Schwartzkopff on 3 October 1852 as ''Eisengießerei und Maschinen-Fabrik von L. Schwartzkopff'' in Berlin. History The factory was founded on 3 October 1852 as ''Eisengießerei und Maschinen-Fabrik von L. Schwartzkopff'' in Berlin by Louis Victor Robert Schwartzkopff. After a fire in 1860 and the expansion of the factory, they started to manufacture turntables, water systems and turnouts for several railway companies. The first locomotive built by the firm was delivered on 1 February 1867 to the Lower Silesian-Mark Railway (''Niederschlesisch-Märkische Eisenbahn'' or NME). On 1 July 1870 the firm was turned into a share company and renamed the ''Berliner Maschinenbau-Actien-Gesellschaft vormals L. Schwartzkopff, Berlin''. In 1897 a second factory was opened in Wildau. From 1899 the company also manufactured Linotype machines for the Mergenthaler factory in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fachbuchverlag Leipzig
The (''fv''; English: Specialist book publisher Leipzig) is a publisher that was founded in early 1949 by several shareholders (including FDGB, ). The first managing director was . From 1960 to 1990 the specialist book publisher was a state-owned enterprise (VEB). It was one of the two most renowned technical-scientific publishers in the German Democratic Republic, whose specialist books were also widely distributed in the Federal Republic of Germany. The books were very popular with West-German students because of their low price, but above all because of the good didactics. It also published specialist journals. In 1995, the specialist book publisher was taken over by the Munich Carl Hanser Verlag and continued to exist there as an imprint. Under the brand, some of the editors of Carl Hanser Verlag continue to publish around 60 specialist books a year. The subject areas are general technology, mechanical engineering, electrical engineering, computer science, environmental and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotive Technologies
Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Steam that is saturated or superheated is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as water vapor condenses. Water increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into mechanical work by steam engines such as reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role in the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, it can create a steam explosion. Types ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
