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  2. Liftboat - Wikipedia

    en.wikipedia.org/wiki/Liftboat

    The liftboat Kaitlyn Eymard was built in the US by Conrad Industries in 2002. A liftboat is a self-propelled, self-elevating vessel used in support of various offshore mineral exploration and production or offshore construction activities. A liftboat has a relatively large open deck to accommodate equipment and supplies, and the capability of ...

  3. Heavy-lift ship - Wikipedia

    en.wikipedia.org/wiki/Heavy-lift_ship

    A heavy-lift ship is a vessel designed to move very large loads that cannot be transported by normal ships. They are of two types: They are of two types: Semi-submersible ships that take on water ballast to allow the load—usually another vessel—to be floated over the deck, whereupon the ballast is jettisoned and the ship's deck and cargo ...

  4. Topping lift - Wikipedia

    en.wikipedia.org/wiki/Topping_lift

    Topping lift. The topping lift (more rarely known as an uphaul) is a line which applies upward force on a boom on a sailboat . Part of the running rigging, topping lifts are primarily used to hold a boom up when the sail is lowered. [ 1] This line would run from near the free end of the boom (s) forward to the top of the mast.

  5. Shiplift - Wikipedia

    en.wikipedia.org/wiki/Shiplift

    Shiplift. A shiplift is a modern alternative for a slipway, a floating dry dock or a graving dry dock. A shiplift is used to dry dock and launch ships. It consists of a structural platform that is lifted and lowered exactly vertically, synchronously by a number of hoists. First, the platform is lowered underwater, then the ship is floated above ...

  6. Abraham Lincoln's patent - Wikipedia

    en.wikipedia.org/wiki/Abraham_Lincoln's_patent

    May 22, 1849. Location. Illinois. Abraham Lincoln's patent relates to an invention to buoy and lift boats over shoals and obstructions in a river. Abraham Lincoln conceived the invention when on two occasions the boat on which he traveled got hung up on obstructions. Lincoln's device was composed of large bellows attached to the sides of a boat ...

  7. Falkirk Wheel - Wikipedia

    en.wikipedia.org/wiki/Falkirk_Wheel

    A timelapse from inside a boat. The Falkirk Wheel (Scottish Gaelic: Cuibhle na h-Eaglaise Brice) is a rotating boat lift in Tamfourhill, Falkirk, in central Scotland, connecting the Forth and Clyde Canal with the Union Canal. It opened in 2002 as part of the Millennium Link project, reconnecting the two canals for the first time since the 1930s.

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