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The Java bogie (German : Java-Drehgestell, Java-Gestell often in Swiss literature), was a bogie for electric locomotives manufactured by the Swiss Locomotive and Machine Works (SLM). It contained a driving wheel and a trailing wheel. It got its name because it was first installed in the 3000 series express train locomotives delivered to the Electrische Staats Spoorwegen (ESS) on Java in 1925.
The planned increase in the maximum speeds on the electrified main lines in Switzerland beyond 100 km/h prompted the SLM designer Jakob Buchli to improve the cornering of the electric locomotives. The Krauss-Helmholtz bogie with its relatively light superstructure was not enough on the winding Swiss routes.
As a result of his investigations, the bogie, later called the Java bogie, was created. [1] [2] Its vertical axis of rotation was close to its driven axis, so that the conditions for radial adjustment [3] in curves were optimal for it: the approach angle of the wheels against the rails was reduced. In order to be able to drive through even tighter curves without constraint, the running axis in the bogie that is further away from the axis of rotation was designed as an Adams axle. The guiding force on the outer rail shifted this axis obliquely inwards, the oblique part of the movement causing the axis to adjust radially.
SLM and BBC delivered two locomotives 7000–7001 to the Japanese State Railways in a very similar design and the same gauge as the Java locomotives.
The larger part of the SBB-CFF-FFS Ae 4/7 was also equipped with Java bogies, which gave them very good running properties. Because the maintenance of the Java bogies was more complex, they were replaced by Bissel axles from 1966 onwards.
The Java bogie was used again in the SBB-CFF-FFS Ae 8/14 double locomotives (1931/32, 1939), with the last one for the first time with pivot pins between the axles. The two outer drive axles and the adjacent running axle of the SBB Ae 4/6 10801-10806 (1941/42) were combined into a Java frame. With the SBB Ae 4/6 10807-10812 (1944/45) a further development of the Java frame was used, in which centering springs and a reset device were supposed to cause stable running on straight stretches and smooth cornering. The mechanical part of the Ae 4/6 was largely modeled on the NS Class 1000, which was delivered to Holland in 1948. The gas turbine locomotive SBB-CFF-FFS Am 4/6 1101, which was put into operation in 1941, had a similar arrangement of axles, which was converted from 1958–61 to Ae 4/6 III 10851.
Electric locomotive with the bogies with two driven axles was led by the construction of the BLS Ae 4/4 in 1944. The successors of this bogie locomotive broke after the Second World War, instead of rigid-framed electric locomotive. [4] The Java bogie was no longer required as a result of the technical development of the electric locomotive's drive.
The Ae 6/6 is a heavy electric locomotive used by the Swiss Federal Railways (SBB-CFF-FFS). It is sometimes also referred to as canton locomotive ("Kantonslokomotive"), because the first 25 locomotives were named after the cantons, and carried the canton's coat of arms on the side and chrome embellishments, and the Swiss coat of arms on the front, between the chrome stripes. These adornments made them internationally famous. The other 95 locomotives received the names of capital cities of Swiss cantons, and other towns and cities, but without the chrome embellishments. The namings were held as ceremonies in the respective cities.
The Re 620, Re 6/6 in the old numbering scheme, are six-axle, electric locomotives of the SBB-CFF-FFS, which were acquired as a replacement for the Ae 6/6 for heavy services on the Gotthardbahn. They are the most modern of the so-called "Gotthard locomotives".
The Buchli drive is a transmission system used in electric locomotives. It was named after its inventor, Swiss engineer Jakob Buchli. The drive is a fully spring-loaded drive, in which each floating axle has an individual motor, that is placed in the spring mounted locomotive frame. The weight of the driving motors is completely disconnected from the driving wheels, which are exposed to movement of the rails.
The Bière–Apples–Morges Railway (BAM) or Chemin de fer Bière-Apples-Morges, located in Switzerland, is a 1,000 mmmetre gauge railway with a total length of almost 30 kilometres (19 mi) which links the towns in its name and from a junction at Apples to the village of L’Isle. The company was renamed to Transports de la région Morges-Bière-Cossonay (MBC) to express its other activities, mainly in local and regional bus services. Furthermore the Funiculaire Cossonay–Gare–Ville is part of MBC since 2010, Before, MBC was contracted to operate it.
The Am 4/6 1101 was the world's first gas turbine-electric locomotive. It was built for the Swiss Federal Railways (SBB-CFF-FFS) by Brown, Boveri & Cie (BBC) in 1938 and used for experimental services on non-electrified lines.
For more than a century, the Swiss locomotive, multiple unit, motor coach and railcar classification system, in either its original or updated forms, has been used to name and classify the rolling stock operated on the railways of Switzerland. It started out as a uniform system for the classification and naming of all rolling stock, powered and unpowered, but had been replaced and amended by the UIC classification of goods wagons.
Jakob Buchli was a Swiss design engineer in the field of locomotive construction.
The Ae 4/8 was a prototype locomotive of the Schweizerischen Bundesbahnen (SBB) for the testing of electrical operation. The locomotive was equipped with two different drives, therefore acquiring the nickname Bastard. Because of its three-part locomotive body it also acquired the nickname Tatzelwurm.
The Rhaetian Railway Ge 4/4 III is a class of metre gauge Bo′Bo′ electric locomotives of the Rhaetian Railway (RhB), which is the main railway network in the Canton of Graubünden, Switzerland.
The Rhaetian Railway Ge 2/4 was a class of metre gauge 1′B1′ electric locomotives formerly operated by the Rhaetian Railway (RhB), which is the main railway network in the Canton of Graubünden, Switzerland. Four members of the class are now preserved, with one of them in operational condition.
The Rhaetian Railway Ge 4/6 was an eight member class of metre gauge 1′D1′ electric locomotives formerly operated by the Rhaetian Railway (RhB), which is the main railway network in the Canton of Graubünden, Switzerland.
The Ce 6/8 I 14201 was one of four test locomotives ordered by the Schweizerischen Bundesbahnen (SBB) in June 1917. For gaining experience for ordering electrical locomotives this locomotive should – as her three sisters Be 3/5 12201, Be 4/6 12301 and Be 4/6 12302 – have been used for services on the Gotthardbahn. The development of freight locomotives subsequently took a complete different way which was not conceivable at the ordering date. The Ce 6/8I came into service only after the first Ce 6/8II.
The Matterhorn Gotthard Bahn ABDeh 4/10, also known as Komet, is a three member class of metre gauge electric trains operated by the Matterhorn Gotthard Bahn (MGB), in the Canton of Valais, Switzerland.
The Be 4/6 was a bogie locomotive operated by the Schweizerischen Bundesbahnen (SBB) on the Gotthard Railway along with the Be 3/5, The design was based on the prototype Be 4/6 12302.
The Winterthur Universal Drive or SLM Universal Drive was a drive for electric locomotives invented by Swiss engineer Jakob Buchli at Swiss Locomotive and Machine Works (SLM) in the 1920s.
The Swiss locomotive class Ae 4/6 was a class of electric locomotives. They were intended as a powerful locomotive for the steep gradients of the Gotthard Railway, but smaller than the huge 'double locomotives' which had previously been tested there. They were built from 1941, during World War II, and although Switzerland remained neutral through this, material shortages led to some quality problems with these locomotives.
The Tschanz drive or Oerlikon single-axle drive is a fully sprung single-axle drive for electric locomotives named after its inventor Otto Tschanz or after Maschinenfabrik Oerlikon. The drive was not widely used because its competitor, the Buchli drive, was cheaper and lighter.
The Indian locomotive class WCP-1 is a class of 1.5 kV DC electric locomotives that was developed in late 1920s by Swiss Locomotive and Machine Works (SLM) for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Passenger traffic (P) engine, 1st generation (1). They entered service in 1930. A total of 22 WCP-1 was built at England between 1928 and 1929.
The Indian locomotive class WCP-3 is a class of 1.5 kV DC electric locomotives that was developed in late 1920s by Hawthorn Leslie for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Passenger traffic (P) engine, 3rd generation (3). They entered service in 1930. A single WCP-3 was built at England between 1928 and 1929.
The Indian locomotive class WCP-2 is a class of 1.5 kV DC electric locomotives that was developed in late 1920s by Swiss Locomotive and Machine Works (SLM) for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Passenger traffic (P) engine, 2nd generation (2). They entered service in 1938. A single WCP-1 was built at England in 1938.