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  2. JLG Industries - Wikipedia

    en.wikipedia.org/wiki/JLG_Industries

    JLG 1200SJP Boom Lift. JLG introduced its first scissor lift in 1973, and in 1979, scissor lift production began in JLG's Bedford, Pennsylvania location. The firm's current product line includes the following types of items: Mast booms and boom lifts (aerial work platforms) Towable & trailer mounted boom lift trucks and telehandlers; Vertical ...

  3. Derrick - Wikipedia

    en.wikipedia.org/wiki/Derrick

    To lift a load, a separate line runs up and over the mast with a hook on its free end, as with a crane. [ 1 ] [ 2 ] Derricks are especially useful for high-rise rigging, jobs that cover a long period of time, or jobs when the impact to street or pedestrian traffic is a concern. [ 3 ]

  4. Gin pole - Wikipedia

    en.wikipedia.org/wiki/Gin_pole

    A gin pole is a mast supported by one or more guy-wires that uses a pulley or block and tackle mounted on its upper end to lift loads. The lower end is braced or set in a shallow hole and positioned so the upper end lies above the object to be lifted. The pole (also known as a mast, boom, or spar) is secured with three

  5. Guyed mast - Wikipedia

    en.wikipedia.org/wiki/Guyed_mast

    A guyed mast is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground or a base) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads.

  6. Autogyro - Wikipedia

    en.wikipedia.org/wiki/Autogyro

    The rotor is mounted atop the vertical mast. The rotor system of all Bensen-type autogyros is of a two-blade teetering design. There are some disadvantages associated with this rotor design, but the simplicity of the rotor design lends itself to ease of assembly and maintenance and is one of the reasons for its popularity.

  7. Rotorcraft - Wikipedia

    en.wikipedia.org/wiki/Rotorcraft

    Rotorcraft generally include aircraft where one or more rotors provide lift throughout the entire flight, such as helicopters, gyroplanes, autogyros, and gyrodynes Compound rotorcraft augment the rotor with additional thrust engines, propellers, or static lifting surfaces. Some types, such as helicopters, are capable of vertical takeoff and ...

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