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  2. Dragline excavator - Wikipedia

    en.wikipedia.org/wiki/Dragline_excavator

    A dragline bucket system consists of a large bucket which is suspended from a large truss-like boom (or mast) with wire ropes. The bucket is maneuvered by means of a number of ropes and chains. The hoist rope, powered by large diesel or electric motors, supports the bucket and hoist-coupler assembly from the boom. The dragrope is used to draw ...

  3. Hoist (mining) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(mining)

    A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...

  4. Ring crane - Wikipedia

    en.wikipedia.org/wiki/Ring_crane

    Mammoet PTC200-DS in Dubai, 2014. 3D sketch of a ring crane doing shoreline assembly of an offshore wind turbine.. Ring cranes are used either when exceptionally large single lifts are essential, or when the ability to perform such lifts would accelerate a construction project sufficiently to make the use of such a specialised crane cost effective.

  5. Big Blue crane collapse - Wikipedia

    en.wikipedia.org/wiki/Big_Blue_Crane_collapse

    The Big Blue was a Lampson LTL-1500 Transi-Lift heavy lift crawler ... The Brewers postponed their home game against the Kansas City Royals scheduled for the ...

  6. Hoist (device) - Wikipedia

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

    Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

  7. Crane (machine) - Wikipedia

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

    The hoist is operated via a wired pushbutton station to move system and the load in any direction. An overhead crane , also known as a bridge crane, is a type of crane where the hook-and-line mechanism runs along a horizontal beam that itself runs along two widely separated rails.