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Because there is a traveling pulley at the load, this doubles the mechanical advantage of the fixed (anchored) sprocket assembly, leading to a total mechanical advantage of 2 × P 1 / P 1 − P 2 . For instance, a 1-ton differential chain fall might have a 15-pocket and a 14-pocket sprocket set.
Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), however modern large hoists use alternating current drives that ...
Fix chain crossing and round link cross section. 20:53, 10 March 2013: 512 × 683 (5 KB) Cmglee: Add labels W to Z for proof. 23:36, 3 March 2013: 512 × 683 (5 KB) Cmglee: Finish illustration as >mask< works. 20:45, 3 March 2013: 512 × 512 (2 KB) Cmglee
A woman has been sexually assaulted and six people have been pushed from their bikes by a group of people believed to have been travelling on a moped or motorbike.
IBM sued the Malta, N.Y.-based company in New York state court in 2021 for allegedly breaking a $1.5 billion contract to make high-performance chips for IBM. GlobalFoundries, which is majority ...
Isak Andic, the founder of Spanish clothing retailer Mango, one of Europe's largest fashion groups with nearly 2,800 stores worldwide, died Saturday in an accident, the company said.
The WABCO 3200 was a rare example of a tri-axle haul truck configuration A medium sized haul truck, the 214-short-ton (194 t; 191-long-ton) Caterpillar 789 [1]. Most haul trucks have a two-axle design, but two well-known models from the 1970s, the 350T Terex Titan and 235T WABCO 3200/B, had three axles.