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  2. Tightlock coupling - Wikipedia

    en.wikipedia.org/wiki/Tightlock_coupling

    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. Like all Janney couplers, the Tightlock is "semi-automatic".

  3. Railway coupling - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling

    The link-and-pin coupling was the original style of coupling used on North American railways. After most railroads converted to semi-automatic Janney couplers, the link-and-pin survived on forest railways. While simple in principle, the system suffered from a lack of standardisation regarding size and height of the links, and the size and ...

  4. Janney coupler - Wikipedia

    en.wikipedia.org/wiki/Janney_coupler

    Major Eli Janney, a Confederate veteran of the American Civil War, invented the semi-automatic knuckle coupler in 1868. It automatically locks the couplers on cars or locomotives together without a rail worker having to get between the cars, and replaced the link and pin coupler, which was a major cause of railroad worker injuries and deaths ...

  5. Railway coupling by country - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling_by_country

    Scharfenberg-type semi-automatic couplers on modern EMUs, DMUs and some passenger rolling stock: Dellner in General San Martín Railway and General Bartolomé Mitre Railway on 1,435 mm track gauge; Shibata semi-automatic couplers on EMUs made by Toshiba-Marubeni Corp. 1956 D.F. Sarmiento Railway on 1,676 mm track gauge,

  6. Railway coupling conversion - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling_conversion

    After American rolling stock became more common under the Manila Railroad during the late 1920s, Janney couplers were adopted as the standard, and were first adopted on the locally-assembled RMC class railcars of 1928. World War II-era and post-war locomotives such as the Manila Railroad 800 class of 1944 only use

  7. List of semi-automatic train systems - Wikipedia

    en.wikipedia.org/wiki/List_of_semi-automatic...

    Much like BART, Washington Metro trains also have a rotary switch to allow the driver to switch between automatic and manual operation. Control panel of a Tokyo Metro 10000 series train, which has a green lever to allow the driver to switch between different modes of operation. Two white ATO start buttons are also placed beside the master ...

  8. North American railroad signals - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    There are two main types of signaling aspect systems found in North America, speed signaling and weak route signaling. [citation needed] Speed signaling transmits information regarding how fast the train is permitted to be going in the upcoming segment of track; weak route signaling transmits information related to the route a train will be taking through a junction, and it is incumbent upon ...

  9. North American railroad signaling - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    In 1992, the American Association of Railroad Superintendents (AARS) convened a special committee, which suggested to its board of directors, executive council, and membership that “the AARS sponsor a full conference on the standardization of railroad operating rules, practices, and procedures, and that this conference be conducted on the ...