Today is Worship of Tools Day in India. 10 facts about the spanner, or wrench.
What is it? A spanner or wrench is a tool used to provide grip and mechanical advantage when applying torque to turn fasteners, such as nuts and bolts.
In the UK, Ireland, Australia, and New Zealand it’s called a spanner; in the USA it’s called a wrench.
'Wrench' is derived from a Proto-Germanic word meaning turning or twisting. The oldest recorded use dates to 1794.
The word ‘Spanner’ also derives from German, in this case from a word meaning to draw, stretch, or spin. The word was first used in the 1630s, referring to the tool for winding the spring of a wheel-lock firearm.
In the UK the phrase “throw a spanner into the works” means to screw things up. Americans would say "to throw a monkey wrench into (something)" to convey the same idea.
A common April Fool or trick played on a newbie in the workshop might be to send them to find a "left handed monkey wrench". Wrenches are ambidextrous.
The use of such tools dates back to the 15th century. They’d be used to adjust suits of armour or to tighten or loosen wagon wheels. Adjustable wrenches for the odd-sized nuts of wagon wheels were manufactured in England and exported to North America in the late eighteenth and early nineteenth centuries.
Why call it a Monkey wrench? Because you can monkey with it? One story goes that it was because it was invented by a man named Charles Moncky, who made enough money from selling the patent to buy himself a nice house.
However, there’s no evidence there ever was a Charles Moncky. There was a Charles Monk who lived at about the same time in the same area, and he did make and sell tools. However, the tools he sold were for moulders, not for mechanics, so he wouldn’t have sold spanners. In any case, he was born after the term first appeared in print.
Another story about the origins of the monkey wrench is that it was called that as a racial slur because it was invented by an African-American boxer called Jack Johnson while he was in prison. This isn’t the case as the first patent for a monkey wrench and the use of the name both date back to before Johnson was born. Johnson can take the credit, however, for a patent for improvements to the tool in question.




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