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  2. Jack (device) - Wikipedia

    en.wikipedia.org/wiki/Jack_(device)

    A scissor jack use the mechanical advantage of a leadscrew and 4-bar linkage to allow a human to lift a vehicle by manual force alone. They are inexpensive and are common in manufacturer-supplied breakdown kits. The jack shown at the left is made for a modern vehicle and the notch fits into a jack-up point [3] on a unibody. Earlier versions ...

  3. Trailer (vehicle) - Wikipedia

    en.wikipedia.org/wiki/Trailer_(vehicle)

    A full trailer is a term used in the United States and New Zealand [4] for a freight trailer supported by front and rear axles and pulled by a drawbar. In Europe this is known as an A-frame drawbar trailer, and in Australia it is known as a dog trailer. Commercial freight trailers are produced to length and width specifications defined by the ...

  4. Jackshaft - Wikipedia

    en.wikipedia.org/wiki/Jackshaft

    [1] [2] In these early sources from New England mills in 1872 and 1880, the term "jack shaft" always appears in quotes. Another 1872 author wrote: "Gear wheels are used in England to transmit the power of the engine to what is usually called the jack shaft." [3] By 1892, the quotes were gone, but the use remained the same. [4]

  5. Fifth-wheel coupling - Wikipedia

    en.wikipedia.org/wiki/Fifth-wheel_coupling

    The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin , a 2-or- 3 + 1 ⁄ 2 -inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a ...

  6. Mi-Jack Products - Wikipedia

    en.wikipedia.org/wiki/Mi-Jack_Products

    Mi-Jack Products is an American manufacturer of industrial, intermodal, and port cranes based in Hazel Crest, Illinois. [1] It manufactures Travelift and Translift rubber-tired gantry cranes , as well as various other container handling systems [ 2 ] and is a part of the Lanco Group of Companies.

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