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Steel wire rope (right hand lang lay) Wire rope is composed of as few as two solid, metal wires twisted into a helix that forms a composite rope, in a pattern known as laid rope. Larger diameter wire rope consists of multiple strands of such laid rope in a pattern known as cable laid. Manufactured using an industrial machine known as a strander ...
Rigging is the equipment such as wire rope, turnbuckles, clevis, jacks used with cranes and other lifting equipment [1] in material handling and structure relocation. Rigging systems commonly include shackles, master links and slings, and lifting bags in underwater lifting.
British Ropes was state-owned. From the 1960s to 1980s, British Ropes headquarters was at Warmsworth Hall at Warmsworth, off the A630 near the B6376 junction. In 1974 it became known as Bridon; Bridon was the name of one of their brands of wire rope. In 1976 the company was turning over £243 million.
Typical values are 1.04 for roller bearing sheaves and 1.09 for plain bearing sheaves (with wire rope). [11] The increased force produced by a tackle is offset by both the increased length of rope needed and the friction in the system. In order to raise a block and tackle with a mechanical advantage of 6 a distance of 1 metre, it is necessary ...
In offshore applications, huge lengths of rope are often housed on drums. The anchor winches on Saipem's Semac 1 pipe laying barge, for example, each hold 2,800 metres of 76mm (3 inch) diameter wire rope in 14 layers. Saipem's Castorone, the world's largest pipe laying vessel uses a wire rope that is 3,850m long and 152mm in diameter. It weighs ...
The company specialized in ship rigging, and was chosen among other competitors in the early 1900s to manufacture the rope used on the USS Constitution. The company's twine, Plymouth binder twine, popular among farmers, was the inspiration for the naming of the Plymouth brand of automobiles first produced in 1928.
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