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Tatra K1
The Tatra K1 was an experimental tramcar developed by ČKD Tatra between 1964 and 1965. History Previous Tatra units were concerned primarily with increasing capacity in a single tramcar. Tatra sought to correct this shortcoming by developing its first articulated tramcar, the K1. The K1 was largely based on the established T3, although certain electrical aspects were adjusted for the K1. In 1965, two prototypes were built with numbers 7000 and 801 (the second prototype never had the number 7001) with electro-pneumatic equipment UA 11. The second one was shipped to Ostrava. After a short trial in Prague with the prototype 7000, it entered Ostrava service with 800. They remained there for three years until October 1, 1968, before it was returned to the manufacturer. The test runs exposed problems with the electronic equipment. Thus, the two prototypes were the only ones ever produced. The first prototype underwent reconstruction to functional sample KTX (later KT4) with a sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ČKD
ČKD (Českomoravská Kolben-Daněk) () was one of the largest engineering companies in the former Czechoslovakia and today's Czech Republic. It is famous for the Tatra T3, a tramcar that sold 13,991 units worldwide. History ČKD was formed in 1927 from the merger of two smaller companies, Českomoravská-Kolben (founded 1896, produced machinery for hydro dams) and Breitfeld-Daněk (founded 1854, produced machinery for mines and food industry). From 1927 until 1929 ČKD's products included a motorcycle designed by Jaroslav František Koch. It was an advanced four-stroke single-cylinder unit construction double overhead camshaft design of 500cc. It was sold under the marque BD, thus perpetuating the Breitfeld-Daněk identity. In 1929 ČKD sold its motorcycle business to Praga Hostivař, which re-branded the motorcycles under the Praga marque. It was one of the main suppliers to the Czechoslovak state of military vehicles during the 1930s. During the German occupation of Cz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prague
Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate oceanic climate, with relatively warm summers and chilly winters. Prague is a political, cultural, and economic hub of central Europe, with a rich history and Romanesque, Gothic, Renaissance and Baroque architectures. It was the capital of the Kingdom of Bohemia and residence of several Holy Roman Emperors, most notably Charles IV (r. 1346–1378). It was an important city to the Habsburg monarchy and Austro-Hungarian Empire. The city played major roles in the Bohemian and the Protestant Reformations, the Thirty Years' War and in 20th-century history as the capital of Czechoslovakia between the World Wars and the post-war Communist era. Prague is home to a number of well-known cultural attractions, many of which survived the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantograph (transport)
A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or electric bus to collect power through contact with an overhead line. By contrast, battery electric buses and trains are charged at charging stations. The pantograph is a common type of current collector; typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings. Invention The pantograph, with a low-friction, replaceable graphite contact strip or "shoe" to minimise lateral stress on the contact wire, first appeared in the late 19th century. Early versions include the bow collector, invented in 1889 by Walter Reichel, chief engineer at Siemens & Halske in Germany, and a flat slide-pantograph first used in 1895 by the Baltimore and Ohio Railroad The familiar diamond-shaped roller pantograph was devised and patented b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tram
A tram (called a streetcar or trolley in North America) is a rail vehicle that travels on tramway tracks on public urban streets; some include segments on segregated right-of-way. The tramlines or networks operated as public transport are called tramways or simply trams/streetcars. Many recently built tramways use the contemporary term light rail. The vehicles are called streetcars or trolleys (not to be confused with trolleybus) in North America and trams or tramcars elsewhere. The first two terms are often used interchangeably in the United States, with ''trolley'' being the preferred term in the eastern US and ''streetcar'' in the western US. ''Streetcar'' or ''tramway'' are preferred in Canada. In parts of the United States, internally powered buses made to resemble a streetcar are often referred to as "trolleys". To avoid further confusion with trolley buses, the American Public Transportation Association (APTA) refers to them as "trolley-replica buses". In the Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ČKD Tatra
ČKD (Českomoravská Kolben-Daněk) () was one of the largest engineering companies in the former Czechoslovakia and today's Czech Republic. It is famous for the Tatra T3, a tramcar that sold 13,991 units worldwide. History ČKD was formed in 1927 from the merger of two smaller companies, Českomoravská-Kolben (founded 1896, produced machinery for hydro dams) and Breitfeld-Daněk (founded 1854, produced machinery for mines and food industry). From 1927 until 1929 ČKD's products included a motorcycle designed by Jaroslav František Koch. It was an advanced four-stroke single-cylinder unit construction double overhead camshaft design of 500cc. It was sold under the marque BD, thus perpetuating the Breitfeld-Daněk identity. In 1929 ČKD sold its motorcycle business to Praga Hostivař, which re-branded the motorcycles under the Praga marque. It was one of the main suppliers to the Czechoslovak state of military vehicles during the 1930s. During the German occupation of Czech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Articulated Vehicle
An articulated vehicle is a vehicle which has a permanent or semi-permanent pivot joint In animal anatomy, a pivot joint (trochoid joint, rotary joint or lateral ginglymus) is a type of synovial joint whose movement axis is parallel to the long axis of the proximal bone, which typically has a convex articular surface. According to o ... in its construction, allowing it to turn more sharply. There are many kinds, from heavy equipment to Articulated bus, buses, trams and Articulated car, trains. Articulated locomotive, Steam locomotives were sometimes articulated so driving wheels could pivot around corners. In a broader sense, any vehicle towing a Trailer (vehicle), trailer (including a semi-trailer) could be described as articulated (which comes from the Latin ''articulus'', "small joint"). In the UK, an ''articulated lorry'' is the combination of a Tractor unit, tractor and a trailer, abbreviated to "artic". In the US, it is called a semi-trailer truck, tractor-trailer or se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra T3
The T3 is a type of Czech tramcar produced by ČKD Tatra. A late-2000s study conducted on the Prague tram system has shown 98.9% reliability, the best of the Prague tram system fleet. During its period of production between 1960 and 1999, 13,991 powered units and 122 unpowered trailers were sold worldwide. It became the most dominant tramcar model in Eastern Bloc countries, except for Poland, where locally produced trams from Konstal factory are still the mainstay in tram systems there. In 1988, the T3 tram entered the Guinness Book of Records as the most widely produced tram in the world. With over 14,000 cars produced, it is still in 2022 the most widespread tram car in the world. Types T3 The design of the T3 had to meet difficult specifications. The cars needed to have the same capacity as its predecessor (the Tatra T2), but be easier to build. Some of the things that were done to meet this goal were making the walls thinner, and fitting the cars with lamin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prototype
A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and Software prototyping, software programming. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users. Prototyping serves to provide specifications for a real, working system rather than a theoretical one. In some design workflow models, creating a prototype (a process sometimes called materialization) is the step between the Formal specification, formalization and the evaluation of an idea. A prototype can also mean a typical example of something such as in the use of the derivation 'prototypical'. This is a useful term in identifying objects, behaviours and concepts which are considered the accepted norm and is analogous with terms such as stereotypes and archetypes. The word ''wikt:prototype, prototype'' derives from the Greek language, Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra KT4
Tatra KT4 is the name of a four-axle type articulated tramcar developed by the Czech firm ČKD Tatra. The first pre-production vehicles entered service in Potsdam in 1975, with the first production vehicles in 1977. A total of 1,747 units were built, with initial deliveries to East Germany (DDR) and later to the USSR and SFR Yugoslavia. KT4 variants were built for both standard gauge and metre gauge tramways. Production of the KT4 tramcar was halted in 1991 due to worldwide economic and political changes at the time. Production was briefly resumed in 1997 to construct the last 20 units for Belgrade, Serbia. Since the start of the 1990s, many of the earliest production tramcars have gone through extensive refurbishment and rebuilding, including the replacement of folding doors and the installation of low-floor center sections. The design of the tram, being without a bogie over the joint necessitates a scissor joint connecting both bogies such that the center of mass does not sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberec
Liberec (; german: Reichenberg ) is a city in the Czech Republic. It has about 103,000 inhabitants and it is the fifth-largest city in the country. It lies on the Lusatian Neisse, in a basin surrounded by mountains. The city centre is well preserved and is protected by law as an urban monument zone. Liberec was once home to a thriving textile industry and hence nicknamed the "Manchester of Bohemia". For many Czechs, Liberec is mostly associated with the city's dominant Ještěd Tower. Since the end of the 19th century, the city has been a conurbation with the suburb of Vratislavice nad Nisou and the neighbouring city of Jablonec nad Nisou. Therefore, the total area with suburbs encompasses 150,000 inhabitants. Administrative parts Liberec is made up of 32 city parts and one self-governing borough (Vratislavice nad Nisou). *Liberec I-Staré Město *Liberec II-Nové Město *Liberec III-Jeřáb *Liberec IV-Perštýn *Liberec V-Kristiánov *Liberec VI-Rochlice *Liberec VII-Horní ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metre-gauge Railway
Metre-gauge railways are narrow-gauge railways with track gauge of or 1 metre. The metre gauge is used in around of tracks around the world. It was used by European colonial powers, such as the French, British and German Empires. In Europe, large metre-gauge networks remain in use in Switzerland, Spain and many European towns with urban trams, but most metre-gauge local railways in France, Germany and Belgium closed down in the mid-20th century, although many still remain. With the revival of urban rail transport, metre-gauge light metros were established in some cities, and in other cities, metre gauge was replaced by standard gauge. The slightly-wider gauge is used in Sofia. Examples of metre-gauge See also * Italian metre gauge * Narrow-gauge railways A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge narrower than standard . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trams In Ostrava
The Ostrava tramway network ( cs, Tramvajová doprava v Ostravě) is the third largest tram network in the Czech Republic. ''Dopravní podnik Ostrava'', the network's operator runs 16 lines on a combined total length of of tram route on of track. The network runs on track and was electrified in 1901. The network includes the interurban section between Ostrava and Kyjovice – only one of four such sections in the Czech Republic. History 19th century The tramway network was built by Brünner Lokaleisen-bahngesellschaft. The first line was opened on 18 August 1894 that ran between Přívoz, Ostrava, and Vítkovice using steam locomotives. A new line to Mariánské Hory was opened in 1899. By this point, the lines were used by over a million passengers, and trams started running every 20 minutes. This increased frequency over-loaded the tracks and the vehicles running on them. Operating costs of the steam trams also increased. This led to the company reducing its tram number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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