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  2. Shear legs - Wikipedia

    en.wikipedia.org/wiki/Shear_legs

    1600 ton maximum lift capacity sheerleg Taklift 7 of Smit International. Fixed shear legs are most commonly found on floating cranes known as floating sheerlegs.These have heavy A-frame booms and vary in lifting capacity between 50 and 4,000 tons, and are used principally in shipbuilding, other large scale fabrication, cargo management, and salvage operations.

  3. Floating sheerleg - Wikipedia

    en.wikipedia.org/wiki/Floating_sheerleg

    1600 ton maximum lift capacity sheerleg Taklift 7 of Smit International. A floating sheerleg (also: shearleg) is a floating water vessel with a crane built on shear legs. Unlike other types of crane vessel, it is not capable of rotating its crane independently of its hull. There is a huge variety in sheerleg capacity.

  4. Left Coast Lifter - Wikipedia

    en.wikipedia.org/wiki/Left_Coast_Lifter

    Left Coast Lifter is a floating derrick barge or sheerleg which was built to assist in the eastern span replacement of the San Francisco–Oakland Bay Bridge.The barge carries a shear legs crane which is the largest barge crane ever used on the U.S. West Coast.

  5. Crane vessel - Wikipedia

    en.wikipedia.org/wiki/Crane_vessel

    A Sheer-legs barge is a barge with sheer-legs mounted at one end, which can lift loads and luff the sheer-legs to adjust the reach, but cannot swing the load independently of the hull orientation. A typical arrangement has a substantial A-frame hinged at the stern, supported by stays to the bow.

  6. Derrick - Wikipedia

    en.wikipedia.org/wiki/Derrick

    On the top side, the two legs are connected together by a lashing but with a small spacer block placed between the legs. A sling, which may be made from ropes, is placed around the area that two legs meet to be used to put a tackle pulley system for lifting the load. There are two guy wires, front and rear, to support the shear legs.

  7. Category:Lifting equipment - Wikipedia

    en.wikipedia.org/wiki/Category:Lifting_equipment

    Pages in category "Lifting equipment" ... Shear legs; W. Wire rope spooling technology This page was last edited on 23 January 2021, at 10:20 (UTC ...

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  9. Crane (machine) - Wikipedia

    en.wikipedia.org/wiki/Crane_(machine)

    The concept of sheer hulks originated with the Royal Navy in the 1690s, and persisted in Britain until the early nineteenth century. Most sheer hulks were decommissioned warships; Chatham, built in 1694, was the first of only three purpose-built vessels. [36] There were at least six sheer hulks in service in Britain at any time throughout the ...