Hand Cranked facts

While investigating facts about Hand Crank Radio and Hand Cranked Ice Cream Maker, I found out little known, but curios details like:

A guy in Illinois built a homemade gatling gun out six SKS semi-automatic rifles and a hand crank. It’s dubbed the “Redneck Obliterator.” It’s perfectly legal. And it recently sold for $3,450.

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Charles Redheffer was an American inventor who claimed to have invented a perpetual motion machine, He was later exposed when an engineer found a hidden cord that led to an upper floor. Upstairs he found an old man who was turning a hand-crank with one hand and eating bread with the other

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In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 12 of the best facts about Hand Cranked Generator and Hand Cranked Music Box I managed to collect.

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1. of Hurdy-Gurdy, a medieval stringed instrument that produces sound by a hand crank-turned, rosined wheel rubbing against the strings.

2. A former NC county commissioner made a hand cranked contraption to kick his own behind, that became a tourist attraction in it's own right.

3. Detroit Electric, an electric car company that was founded in 1907. Powered by a rechargeable lead acid battery, they were mainly sold to female drivers as they did not require the physical hand-cranking of the early internal combustion engines. Even Clara Ford, Henry Ford's wife, drove one.

4. In order to operate the Antikythera mechanism a hand crank was used, which was linked to the largest gear via a crown gear. This gear moved the date pointer to the correct calendar date.

5. The first home ice cream maker was invented in 1843, by Nancy Johnson who lived in Philadelphia. It was a hand-crank machine.

6. America's Cup sail boat teams have a role known as "Grinder" whose purpose is to provide hydraulic pressure to their controls system via hand crank or stationary bike.

7. In 1982 Susan Glines was the last telephone switchboard operator for a hand-crank phone. The town in which she worked, Bryant Pond, Maine, converted to non hand-cranked phones.

8. After a motorist died from a faulty hand crank for a car, Kettering and his engineers at Delco were asked to build an electric self-starter to replace the hand crank. They succeeded.

9. It is possible to use a hand crank to start an engine in a Tiger tank.

10. The Hurdy-Gurdy, a 10th century stringed instrument, exists. The sound is produced by a hand-cranked wheel rubbing against the strings, providing a droning sound that sounds like a mix of the bagpipe and a violin. These days, they can typically be found playing at folk festivals in Europe.