Everything about Crowbar Tool totally explained
A
crowbar,
pry bar, or
prybar, more informally a
jimmy,
jimmy bar,
jemmy (
British Isles) or
gooseneck is a
tool consisting of a
metal bar with
a single curved end and flattened points, often with a small fissure on one or both ends for removing
nails. In the
British Isles, "crowbar" may be used loosely for this tool, but is more commonly used to mean a larger straight tool (see
spud bar). The term "jemmy" or "jimmy" most often refers to the tool when used for
burglary.
It is used as a
lever to either force apart two objects or to remove nails. Crowbars are commonly used to open nailed
wooden
boxes. Another common use for larger crowbars is general demolition: for removing nails, prying apart boards, and generally smashing things.
Crowbars can be used as any of the three
lever classes but the curved end is usually used as a first-class lever, and the flat end as a 2nd class lever.
Materials and construction
Normally made of medium carbon
steel, they can be made from
titanium also, which has the advantage of being lighter, nonmagnetic, and spark-resistant.
The least expensive, most common crowbars are forged from hexagonal or sometimes cylindrical stock. More advanced, expensive designs often are forged with an I shaped cross sectional shaft similar to an
I-beam. This shape makes them more resistant to
bending.
Etymology
The term
crowbar is named after its resemblance to the feet or beaks of a
crow, with a history that traces to at least
1400. They were first called
crow bars and later the two joined into one word. They also were called
crows;
William Shakespeare used the term
crow in many places, including his play
Romeo and Juliet, Act 5, scene ii:
» Get me an iron crow and bring it straight.
Unto my cell. ...
There also exists a theory that the term
crowbar derives from
Jim Crow and that they were used by blacks to perform menial tasks, giving it racist origins. The truth is the term Jim Crow surfaced around 1830, at least 400 years after the crowbar.
Popular culture
In some
computer games a crowbar is the basic
mêlée weapon wielded by the
player character; this practice appears to have been started in
1998's
Half-Life.
Examples include:
Many pieces of
zombie-related fiction, such as
Max Brooks'
The Zombie Survival Guide, make special note of the crowbar as perhaps the best all-around mêlée weapon—not only does it make a useful tool, but it's light enough to be carried and wielded quickly and is also heavy and durable enough to deal an effective blow, with a pointed end capable of penetrating a skull. As zombies traditionally cease function when the brain is destroyed, this is extremely important in combat against them.
In the videogames:
Tomb Raider III
Tomb Raider Chronicles
Manhunt
The crowbar is used to break padlocksFurther Information
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