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A crane hook and overhaul ball assembly. An overhaul hook ball, also known as an overhaul ball or headache ball, is a heavy weight that is attached to the end of a crane's cable, above the lifting hook. It is used to keep the cable under sufficient tension even when no load is attached.
It is made from three pieces of rectangular-section 13 mm (0.51 in)-thick steel legs held together with a shackle, allowing connection to a lifting hook. The middle leg is square throughout its length, while the outer legs are thinner at the top, flaring towards the bottom. Held together, the three legs thus form a dovetail shape.
A lifting hook with a safety latch. A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane.A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.
A block and tackle [1] [2] or only tackle [3] is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads.. The pulleys are assembled to form blocks and then blocks are paired so that one is fixed and one moves with the load.
“The Panama Canal opened for business 110 years ago, and was built at HUGE cost to the United States in lives and treasure,” Trump claimed.
EOT cranes are extensively used in warehouses and industry. [2] An EOT crane is able to carry heavy objects to anywhere needed on the factory floor, and can also be used for lifting. However, it cannot be used in every industry. The working temperature is to limited to a range between -20°C to 40°C. [citation needed]
A Massachusetts man was caught in the middle of some “Santa-antics” and got stuck in a chimney while trying to evade police executing a search warrant on his home.
Prince William was forced to cancel a royal outing on Thursday, Jan. 16.. The Prince of Wales, 42, was planning to visit families and servicemen and women at a military regiment where he holds a ...
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