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  2. Jib (crane) - Wikipedia

    en.wikipedia.org/wiki/Jib_(crane)

    A jib or jib arm is the horizontal or near-horizontal beam used in many types of crane to support the load clear of the main support. [1] [2] An archaic spelling is gib. [3] Usually jib arms are attached to a vertical mast or tower or sometimes to an inclined boom.

  3. Crane (machine) - Wikipedia

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

    Jib crane. A jib crane is a type of crane - not to be confused with a crane rigged with a jib to extend its main boom - where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-mounted pillar. Jib cranes are used in industrial premises and on military vehicles.

  4. Block-setting crane - Wikipedia

    en.wikipedia.org/wiki/Block-setting_crane

    Stothert & Pitt's 15 ton crane for the Port Alfred harbour works. In 1881, Stothert and Pitt constructed a horizontal jib crane for Sir John Coode's harbour building work on the Kowie River at Port Alfred in South Africa. [6] This was a rail-mounted steam crane, with a fixed horizontal jib carrying a movable trolley or 'crab'.

  5. Level luffing crane - Wikipedia

    en.wikipedia.org/wiki/Level_luffing_crane

    A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.

  6. Overhead crane - Wikipedia

    en.wikipedia.org/wiki/Overhead_crane

    An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of two parallel rails seated on longitudinal I-beams attached to opposite steel columns by means of brackets. The traveling bridge spans the gap. A hoist, the lifting component of a crane, travels along the bridge.

  7. Titan (crane) - Wikipedia

    en.wikipedia.org/wiki/Titan_(crane)

    The crane was launched on 5 December 1917. [2] However, during construction, the 40-ton lead screws for the crane's jib arm were lost when the merchant ship Afric was torpedoed. [1] The crane could be used in a limited capability, although it was not until 1919 that replacement screws of sufficient quality were acquired. [1]

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