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  2. Construction of One World Trade Center - Wikipedia

    en.wikipedia.org/wiki/Construction_of_One_World...

    In 2007, Tishman Construction Corporation of New York completed a row of steel columns at the perimeter of the construction site. Two tower crane bases were erected, each base containing a functioning luffing-jib tower crane. By the end of 2007, the tower's footings and foundations were nearly complete. [10]

  3. Samson and Goliath (cranes) - Wikipedia

    en.wikipedia.org/wiki/Samson_and_Goliath_(cranes)

    On 4 April 2007, Samson collided with the long jib of smaller rail-mounted "Henson" tower crane, sending the smaller crane tumbling to the ground. The smaller crane weighed 95 tonnes and stood at a height of 25 metres (82 ft), compared to Samson's 106 metres (348 ft).

  4. 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.

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  6. Action Construction Equipment - Wikipedia

    en.wikipedia.org/wiki/Action_Construction_Equipment

    1995 – company incorporated, rolled out its first hydraulic mobile crane [11] 1997 – received ISO 9001:2008 certification; established regional office in Mumbai; 1998 – rolled out first mobile tower crane; 1999 – rolled out its first small Loader; exported its first machine; 2001 – partnership with Autogru PM, Italy for distribution ...

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  8. 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.

  9. New York City crane collapse – live: 12 injured after 16 ...

    www.aol.com/york-city-crane-collapse-live...

    A construction crane caught fire and partially collapsed in the heart of Manhattan on Wednesday morning, sending commuters fleeing for their lives as rubble rained down onto the streets below ...