Investor AB is a Swedish investment and holding company, often considered a de facto conglomerate. One of Sweden's largest companies, Investor AB serves as the investment arm of the prominent Swedish Wallenberg family; the family's companies are involved in a variety of industries, of which the primary industries are pharmaceuticals, telecommunications and industry.
Multiple-unit train control, sometimes abbreviated to multiple-unit or MU, is a method of simultaneously controlling all the traction equipment in a train from a single location—whether it is a multiple unit comprising a number of self-powered passenger cars or a set of locomotives—with only a control signal transmitted to each unit. This contrasts with arrangements where electric motors in different units are connected directly to the power supply switched by a single control mechanism, thus requiring the full traction power to be transmitted through the train.
Green Cargo AB is a Swedish state-owned logistics company that transports various types of goods by train. It was created on 1 January 2001 out of the logistics division of Swedish State Railways (SJ). While organised as a public limited company, it is wholly owned by the Swedish government. As of 2019, it was responsible for almost 80% of Swedish rail freight transport.
A coupling or coupler is a mechanism, typically located at each end of a rail vehicle, that connects them together to form a train. The equipment that connects the couplers to the vehicles is the draft gear or draw gear, which must absorb the stresses of the coupling and the acceleration of the train.
EQT AB is a Swedish global investment organization founded in 1994. Its funds invest in private equity, infrastructure, real estate, growth equity, and venture capital in Europe, North America, and Asia Pacific.
A buffer is a part of the buffers and chain coupler system used on the railway systems of many countries, among them most of those in Europe, for attaching railway vehicles together.
Type H Tightlock couplers are a variety of Janney coupler, typically used on North American mainline passenger rail cars. They have mechanical features that reduce slack in normal operation and prevent telescoping in derailments, yet remain compatible with other Janney types used by North American freight railroads.
GB Railfreight (GBRf) is a rail freight company in the United Kingdom. As of 2022, it is owned by the global investment company Infracapital, itself a subsidiary of M&G plc, a UK investment group.
Knorr-Bremse AG is a German manufacturer of braking systems for rail and commercial vehicles that has operated since 1905. Other products in the company's portfolio include intelligent door systems, control components, air conditioning systems for rail vehicles, torsional vibration dampers, and transmission control systems for commercial vehicles.
SA3 couplers or Willison coupler and Russian coupler are railway couplings used primarily in Russia and states influenced by the former Soviet Union, such as Finland, Poland, and Mongolia.
Europorte is a European rail freight company, a subsidiary of Getlink; operating in France and through the Channel Tunnel.
Hector Rail is a Swedish-based independent train haulage provider. It operates in the European rail transport market and possesses its own rolling stock, including a fleet of 100 locomotives. The company provides both locomotives and drivers to freight customers who need to have whole unit trains hauled between two places with a regular timetable.
The railcar couplers or couplings listed, described, and depicted below are used worldwide on legacy and modern railways. Compatible and similar designs are frequently referred to using widely differing make, brand, regional or nick names, which can make describing standard or typical designs confusing. Dimensions and ratings noted in these articles are usually of nominal or typical components and systems, though standards and practices also vary widely with railway, region, and era. Transition between incompatible coupler types may be accomplished using dual couplings, a coupling adapter or a barrier wagon.
A barrier vehicle (BV), barrier wagon, match wagon or translator coach is used to convert between non-matching railway coupler types. This allows locomotives to pull railway vehicles or parts of a train with a different type of coupler. A match wagon has an identical dual coupling at both ends.
Knuckle couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without rail workers having to get between the vehicles.
From time to time, a railway decides that it needs to upgrade its coupling system from one that is proving unsatisfactory, to another that meets future requirements. This can be done gradually, which can create many problems with transitional incompatibilities, or overnight, which requires much planning.
Buffers and chain couplers – also known as "buffers and screw", "screw", and "screwlink" – are the de facto International Union of Railways (UIC) standard railway coupling used in the EU and UK, and on some railways in other parts of the world, such as in South America and India, on older rolling stock. Buffers and chain couplers are an assembly of several devices: buffers, hooks and links, or turnbuckle screws.
Rail Operations Group (ROG) is a British company which specialises in ad-hoc movement of rolling stock for rolling stock companies and train operating companies, as well as locomotive spot hire services and the operation of charter trains. It has its headquarters and main offices based in Derby.
Digital automatic coupling (DAC) is a type of railway coupling developed in the 2020's to replace the English buffers and chain couplings, initially in Europe.
Digital Automatic Coupling (DAC) is an advanced coupling system designed for the automatic connection of freight wagons. Unlike traditional screw couplings, the DAC system enables automatic mechanical coupling as well as electrical and data connections between train cars.
