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  2. Crowbar - Wikipedia

    en.wikipedia.org/wiki/Crowbar

    A crowbar with a curved chisel end to provide a fulcrum for leverage and a goose neck to pull nails. A crowbar, also called a wrecking bar, pry bar or prybar, pinch-bar, or occasionally a prise bar or prisebar, colloquially gooseneck, or pig bar, or in Australia a jemmy, [1] is a lever consisting of a metal bar with a single curved end and flattened points, used to force two objects apart or ...

  3. Digging bar - Wikipedia

    en.wikipedia.org/wiki/Digging_bar

    A pinch point bar has a chisel at one end. Bars are typically 5 to 6 ft (1.5 to 1.8 m) long and weigh 15 to 23 lb (6.8 to 10.4 kg). They are usually made entirely of cylindrical or hexagonal forged steel with a diameter of approximately 1 in (2.5 cm).

  4. Breaker bar - Wikipedia

    en.wikipedia.org/wiki/Breaker_bar

    A breaker bar is able to create a larger amount of rotational force compared to a standard socket wrench. A standard breaker bar is strong enough to allow the user to apply up to 2,500 pound-feet (3,400 N⋅m) of torque without breaking the bar. [3] A high-end 1/2" socket wrench can withstand a maximum of 500 pound-feet (680 N⋅m) of torque. [4]

  5. Cheater bar - Wikipedia

    en.wikipedia.org/wiki/Cheater_bar

    Cheater bars are usually used to free threaded pipe, screws, bolts, and other fasteners that are difficult to remove with a ratchet or pipe wrench alone. They are also commonly used to operate valves.

  6. Four-bar linkage - Wikipedia

    en.wikipedia.org/wiki/Four-bar_linkage

    In the study of mechanisms, a four-bar linkage, also called a four-bar, is the simplest closed-chain movable linkage. It consists of four bodies, called bars or links, connected in a loop by four joints. Generally, the joints are configured so the links move in parallel planes, and the assembly is called a planar four-bar linkage. Spherical and ...

  7. Torsion bar suspension - Wikipedia

    en.wikipedia.org/wiki/Torsion_bar_suspension

    Torsion bar suspension inside Leopard 2 Schematic of a front axle highlighted to show torsion bar. A torsion bar suspension, also known as a torsion spring suspension, is any vehicle suspension that uses a torsion bar as its main weight-bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end ...

  8. Crowbar (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Crowbar_(disambiguation)

    A crowbar is a tool with a curved end used for prying objects apart. Crowbar may also refer to: Digging bar , called a crowbar in the UK and Australia, a straight metal bar used for post hole digging or for leverage

  9. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    This is an incomplete list of DIN standards.. The "STATUS" column gives the latest known status of the standard.. If a standard has been withdrawn and no replacement specification is listed, either the specification was withdrawn without replacement or a replacement specification could not be identified.