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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 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).
I was told by an old timer the crow bar is a straight heavy iron bar about 5 ft long with a flat pry bar on one side and a pointed side on the other for breaking, the name crow came from "straight as the crow flys" therefore crow bars are only straight bars. goose neck bars have a hook on them. and nail bars need to have the split end where the ...
It consists of a straight steel bar, generally about 28 inches long. [1] One end is formed into a chisel; the opposite end has a 90 degree adze . The primary advantage over the claw tool it replaced is that the striking end (the adze) is in a straight line with the rest of the tool; on the claw tool the corresponding end was curved into a hook ...
Pincers are a hand tool used in many situations where a mechanical advantage is required to pinch, cut or pull an object. Pincers are first-class levers , but differ from pliers in that the concentration of force is either to a point, or to an edge perpendicular to the length of the tool.
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.
A light fixture using a ball chain. An electric pull switch is attached to a toggle type switch: one pull to switch on and next pull to switch off. [1] It was invented by Harvey Hubbell, who was granted its patent in 1896. [2]
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