Shear-legs are a type of lifting device that consists of two tall angled poles or legs joined at the top by a crosspiece known as the head. The head has a pulley system attached, and a rope or chain is strung between the pulleys to lift heavy loads.
Shear-legs were traditionally used to lift and move large objects, particularly in shipyards, construction sites, and mines. They were usually powered by a team of workers using ropes, chains, and pulleys, but can also be powered by electric or hydraulic systems.
Shear-legs are highly versatile and can be used to lift anything from heavy machinery, construction materials, and building structures. They can also be adjusted to different heights and angles, making them ideal for working in areas with limited space.
Today, shear-legs are still used in industries such as oil and gas, offshore drilling, and heavy construction. However, they have largely been replaced by cranes and other more modern and efficient lifting devices.
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