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  2. Jack (device) - Wikipedia

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

    Hydraulic bottle jack. A bottle jack or whiskey jack [6] is a jack which resembles a bottle in shape, having a cylindrical body and a neck. Within is a vertical lifting ram with a support pad of some kind fixed to the top. The jack may be hydraulic or work by screw action.

  3. Pumpjack - Wikipedia

    en.wikipedia.org/wiki/Pumpjack

    A diagram of a pumpjack. A pumpjack is the overground drive for a reciprocating piston pump in an oil well. [1]It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface.

  4. Roasting jack - Wikipedia

    en.wikipedia.org/wiki/Roasting_jack

    Illustration of a bottle jack from Mrs Beeton's Book of Household Management. A roasting jack is a machine which rotates meat roasting on a spit. [1] It can also be called a spit jack, a spit engine or a turnspit, although this name can also refer to a human turning the spit, or a turnspit dog. [2]

  5. Machine press - Wikipedia

    en.wikipedia.org/wiki/Machine_press

    Manual goldsmith press General-purpose hydraulic shop press Power press with a fixed barrier guard A HACO CNC hydraulic press brake A press brake bending a sheet of steel. A forming press, commonly shortened to press, is a machine tool that changes the shape of a work-piece by the application of pressure. [1]

  6. Blowout preventer - Wikipedia

    en.wikipedia.org/wiki/Blowout_preventer

    A typical subsea deepwater blowout preventer system includes components such as electrical and hydraulic lines, control pods, hydraulic accumulators, test valve, kill and choke lines and valves, riser joint, hydraulic connectors, and a support frame. Two categories of blowout preventer are most prevalent: ram and annular. BOP stacks frequently ...

  7. Telescopic cylinder - Wikipedia

    en.wikipedia.org/wiki/Telescopic_cylinder

    Telescopic cylinders are a special design of a hydraulic cylinder or pneumatic cylinder as well as pulley system which provide an exceptionally long output travel from a very compact retracted length. Typically the collapsed length of a telescopic cylinder is 20 to 40% of the fully extended length depending on the number of stages. [1]

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