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History Of The Cranes
Jan 10, 2018

In 10 BC, ancient Roman architect Vitruvis described a lifting machine in his architectural handbook. The machine has a mast, the top of which is equipped with a pulley, the position of the mast fixed by the cable, and the rope with the winch pulling through the pulley to lift the heavy object. Some overweight machinery can be used two masts, forming a herringbone, the lifting of the movement transverse, but the amplitude is very small, the operation is very laborious.

By 15th century, Italy had invented a wheeled crane to solve the problem. The crane has a tilted cantilever, the top of which is equipped with pulleys, which can both lift and rotate. But until the 18th century, all kinds of lifting machinery used by humans are powered by human or animal power, with limited weight, range of use and efficiency.

In the middle and late 18th century, the British Watt improved and invented the steam engine, which provided a dynamic condition for lifting machinery. In 1805, Glen engineer Lenny built the first steam cranes for the London dock. In the 1846, British Armstrong converted a steam crane from the Newcastle dock to a hydraulic crane.

In the early 20th century, the use of tower cranes began in Europe.

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