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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] |
Krauss-Helmholtz-Lenkgestell Int
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 named af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class 44
The Class 44 (German: ''Baureihe 44'' or ''BR 44'') was a ten-coupled, heavy goods train steam locomotive built for the Deutsche Reichsbahn as a standard steam engine class (''Einheitsdampflokomotive''). Its sub-class was G 56.20 and it had triple cylinders. It was intended for hauling goods trains of up to on the routes through Germany's hilly regions (''Mittelgebirge'') and up to on steep inclines. They were numbered 44 001-44 1989. History The first 10 examples were built in 1926. These engines had a somewhat higher steam consumption than the first ten units of the DRG Class 43 procured in parallel for comparison purposes, and which were equipped with two cylinders. Not until 1937 were further 44s procured, because by then the rising demands of rail transportation could be better met with a triple-cylinder configuration. From 1926 to 1949, a total of 1,989 locomotives were manufactured. During the Second World War an austerity variant was built with simplified constructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRB Class E 19
Deshastha Brahmin is a Hindu Brahmin subcaste mainly from the Indian state of Maharashtra and northern area of the state of Karnataka. Other than these states, according to authors K. S. Singh, Gregory Naik and Pran Nath Chopra, Deshastha Brahmins are also concentrated in the states of Telangana , Andhra Pradesh and Madhya Pradesh Author Pran Nath Chopra and journalist Pritish Nandy says, "Most of the well-known saints from Maharashtra, Karnataka and Andhra Pradesh were Deshastha Brahmins". The mother tongue of Deshastha Brahmins is either Marathi or Kannada. Some Deshasthas who settled in Telugu states also adopted Telugu as their mother tongue. Over the millennia, the Deshastha community has produced Mathematicians such as Bhāskara II, Sanskrit scholars such as Bhavabhuti; Bhakti saints such as Dnyaneshwar, Sripadaraja, Eknath, Purandara Dasa, Samarth Ramdas and Vijaya Dasa; Logicians such as Jayatirtha and Vyasatirtha. The traditional occupation of Deshastha Bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class E 18
The Deutsche Reichsbahn-Gesellschaft (DRG) Class E 18 is a class of electric locomotives built in Germany and Austria between 1935 and 1955. With exception of Class E 19 it was Deutsche Reichsbahn's fastest electric locomotive. After 1945 most of the surviving locomotives were operated by Deutsche Bundesbahn (DB), although a few passed to Deutsche Reichsbahn (DR) and Österreichische Bundesbahnen (ÖBB). In addition to the 55 locomotives built in Germany, a further 8 locomotives of a modified design were built in Austria in 1939 as ''Class E 18.2'' (later ÖBB class 1018). Development dates back to the year 1881, when near Berlin the first public line was taken into service in Berlin. German WP article on electric traction Despite successful test runs with three-phase current electric railcars up to a top speed of in 1903, the German state railways decided to use single-phase alternating current because the overhead line of three-phase current was very complicated. The first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class 86
The DRG Class 86 was a standard (see ''Einheitsdampflokomotive'') goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft. It was intended for duties on branch lines and was delivered by almost all the locomotive building firms working for the Reichsbahn. From 1942 it was built in a simplified version as a 'transitional war locomotive' (''Übergangskriegslokomotive'' or ''ÜK''). The most obvious changes were the omission of the second side windows in the cab and the solid disc carrying wheels. History Almost all German locomotive factories took part in building these engines, 775 examples being produced in the period from 1928 to 1943. Its area of operations was predominantly the routes in Germany's Central Uplands (''Mittelgebirge''); as a result the first 10 units were given a Riggenbach counter-pressure brake. Twenty locomotives were destroyed during the Second World War; lightly damaged engines were repaired. Of the original 775 units, 175 went to the GDR ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class 64
The Deutsche Reichsbahn had a standard passenger train tank engine with a wheel arrangement of 1'C1' (UIC classification) or 2-6-2 (Whyte notation) and a low axle load, which was designated in their classification system as the DRG Class 64 (''Baureihe 64''). The Class 64 was developed from 1926 onwards and it was built between 1928 and 1940. Many German manufacturers contributed to the series. Construction The boiler and elements of the driving gear were the same as those on the DRG Class 24. They had Bissel bogies, apart from ten engines which had a Krauss-Helmholtz bogie . From no. 64 368 onwards the engines were 10 cm longer than their predecessors. The Class 64 engine was given the nickname "''Bubikopf''" ('bob') after a fashionable ladies hairstyle of the time. Service After the Second World War 393 engines were still in service of which 278 went to the Deutsche Bundesbahn and 115 to the Deutsche Reichsbahn (East Germany). No. 64 311 remained in Austria after 1945 and beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRG Class 41
The German Class 41 steam locomotives were standard goods train engines ('' Einheitslokomotiven'') operated by the Deutsche Reichsbahn (DRB) and built from 1937 to 1941. History In the search for a new, fast, goods train locomotive, the Deutsche Reichsbahn-Gesellschaft (DRG) in 1934 was attracted by the proposal from the Berliner Maschinenbau (BMAG, formerly Louis Schwartzkopff) for a 2-8-2 (1'D1'h2) engine. The design, produced by Friedrich Wilhelm Eckhardt (1892–1961), differed from the DRG's original requirement for a 2-8-0 (1'D) engine, because the required performance with an 18-ton axle load was easier to generate on a 2-8-2 engine rather than one with a 2-8-0 wheel configuration. Continued adherence to this instruction would in the end have given the new engine no significant advantage over the Prussian goods train locomotives which were to be withdrawn. The Reichsbahn Central Office Engineering Works (RZM) eventually agreed to this proposal; the BMAG was taske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luttermöller Axle
A Luttermöller axle is an unusual steam locomotive component. Steam locomotives with several axles or Wheelset (rail transport), wheelsets connected to one another by coupling rods are not able to negotiate tight curves well. In order to assist such locomotives, the manager of the Orenstein & Koppel factory in Berlin, Dr. Luttermöller, built the axle system named after him. Overview With this system, the outermost of several sets of successive driving wheel sets are not connected by coupling rods to crankshaft journals on the outside of the wheels, but by Gear, cogwheels located in the centre of the axles. The axles are housed in the locomotive frame such that they are able to move at right angles to the axis of the rails to a certain degree, likewise the cogwheels are able to slide relative to one another. In this way curves can be negotiated with less friction being generated. Use Germany For the Hamburg Harbour railway with its tight curves, the ten-coupled steam locomotives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
