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  2. Railway coupling - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling

    The balance lever coupling, also central buffer coupling with two screw coupling, is a coupler commonly used on narrow gauge railroads with tight curves. By swapping the pulling and pushing devices, the standard screw coupling used on standard gauge railroads became a center buffer coupling with one screw coupling on each side of the buffer.

  3. Buffers and chain coupler - Wikipedia

    en.wikipedia.org/wiki/Buffers_and_chain_coupler

    Buffers and chain couplers (or couplings) – 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.

  4. Railway coupling conversion - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling_conversion

    Conversion to the Janney coupling is now virtually complete. Commonwealth Railways started with Janney couplings on its 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge Trans-Australian line, and some railways, like the former Victorian Railways and the Queensland Railways, used dual couplers. Older couplers remain on Heritage railways.

  5. Balance lever coupling - Wikipedia

    en.wikipedia.org/wiki/Balance_lever_coupling

    The balance lever coupling, also known as rocking lever coupling or compensating coupling, is a type of central buffer coupling that has found widespread use, especially in narrow-gauge railways. In Switzerland this type of coupling is called a central buffer with two screw couplings, abbreviated to Zp2, [ 1 ] or referred to as a central buffer ...

  6. Buffer (rail transport) - Wikipedia

    en.wikipedia.org/wiki/Buffer_(rail_transport)

    The draw chain used between each pair of vehicles includes a screw which is tightened after coupling to shorten the chain and keep the buffers pressed together. Such is known as a 'screw coupling'. Historically, coupling chains were no more than that, a short length of heavy chain (typically three links long) with no adjustment.

  7. Railway coupling by country - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling_by_country

    1973 General Urquiza Railway on 1,435 mm track gauge, 1983 General Roca Railway on 1,676 mm Track gauge EMUs. Scharfenberg couplers on CAF made EMUs for Tren de la Costa on 1,435 mm track gauge. Bell-and-hook couplers on various narrow-gauge tourist railways (Ferrocarril Piedra Baya, [46] Austral Fueguino Railway and Económico Sud Railway).

  8. Dual coupling - Wikipedia

    en.wikipedia.org/wiki/Dual_coupling

    Inter-stock coupling was with the automatic coupler (with the buffers retracted), while connection to the locomotive was with the buffer-and-chain system with a screw coupler. Today this dual coupling system has been adopted for all loco-hauled passenger trains in Great Britain to allow faster shunting operations.

  9. Janney coupler - Wikipedia

    en.wikipedia.org/wiki/Janney_coupler

    The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...

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