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  2. Crane (machine) - Wikipedia

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

    Shooting a film from crane. The generally accepted definition of a crane is a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm. As such, a lifting machine that does not use cables, or else provides only vertical and not horizontal movement, cannot strictly be called a 'crane'.

  3. Outrigger - Wikipedia

    en.wikipedia.org/wiki/Outrigger

    An outrigger is a projecting structure on a boat, with specific meaning depending on types of vessel. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a crane that lifts heavy loads.

  4. Rigger (industry) - Wikipedia

    en.wikipedia.org/wiki/Rigger_(industry)

    The term comes from the days of sailing ships, when a rigger was a person who worked with rigging, that is, ropes for hoisting the sails.Sailors could put their rope skills to work in lifting and hauling.

  5. M816 Wrecker - Wikipedia

    en.wikipedia.org/wiki/M816_Wrecker

    An M816 wrecker being pulled by another M816. The M816 Medium Wrecker is part of the M809 series of 5-ton 6x6 military trucks.It was made by AM General starting in 1970. It has a revolving hydraulic crane with an extending boom that can extend from 10–18 ft with a maximum lift capacity of 20,000 lb with outriggers and boom jacks to the ground.

  6. Lattice boom crawler crane - Wikipedia

    en.wikipedia.org/wiki/Lattice_Boom_Crawler_Crane

    A lattice boom crawler crane is a crane that gets its name from the W or V shaped lattice design of the boom. The benefit of this design is that it decreases the total weight while still providing maximum support for heavy loads. Other lattice boom crane parts include the crawlers, hoist, cab, sheaves, and wire ropes.

  7. Banksman - Wikipedia

    en.wikipedia.org/wiki/Banksman

    In Irish and British civil engineering, a banksman is the person who directs the operation of a crane or larger vehicle from the point near where loads are attached and detached. The term 'dogman' may be used in Australia and New Zealand , while 'spotter' is the more common term in United States .

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  9. Leapfrogging - Wikipedia

    en.wikipedia.org/wiki/Leapfrogging

    Leapfrogging is a concept used in many domains of the economics and business fields, and was originally developed in the area of industrial organization and economic growth. The main idea behind the concept of leapfrogging is that small and incremental innovations lead a dominant firm to stay ahead.