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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 ...
A lining bar is used to shift the alignment of railroad tracks, to manipulate some types of railroad track jacks, to "nip up" or lift ties and rails, and as a digging tool. Lining bars have a tapered form. They often have a square cross section between one and 1-1/2 inches at one end. They may have a pyramidal, wedge, or pinch point.
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Pinch valves employ an elastic tubing (sleeve/hose) and a device that directly contacts the tubing (body). Forcing the tubing together creates a seal that is equivalent to the tubing's permeability. [1] Air-operated pinch valves consist of an elasticised reinforced rubber hose, a type of housing, and two socket end covers (or flanges).
A crowbar circuit is an electrical circuit used for preventing an overvoltage or surge condition of a power supply unit from damaging the circuits attached to the power supply. It operates by putting a short circuit or low resistance path across the voltage output (V o ), like dropping a crowbar across the output terminals of the power supply.
The Kelly tool was intended specifically for opening doors and other barriers. Modern versions often are modified along the lines of the Halligan bar, especially at the chisel end. Originally the chisel blade was flat and straight; more recently it has tended to take on a curved and forked form, similar to the claw of a carpenter's hammer ...
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]
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