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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.
Holeless hydraulic elevators were developed in the 1970s, and use a pair of above-ground cylinders, which makes it practical for environmentally or cost-sensitive buildings with two, three, or four floors. Roped hydraulic elevators use both above-ground cylinders and a rope system, allowing the elevator to travel further than the piston has to ...
In many places, particularly in North America, elevator mechanics belong to a company called Elevator Constructors. L abor unions have a large impact on the industry, depending on the country. Mechanics make an average annual wage of US$70,910 (as of May 2010). [1] Elevator mechanic jobs are expected to grow of 13% from 2014 to 2024. [1]
The elevator operator had to regulate the elevator's speed, which typically required a good sense of timing to consistently stop the elevator level with each floor. In addition to their training in operation and safety, department stores later combined the role of operator with greeter and tour guide , announcing product departments, floor by ...
Destination dispatch is an optimization technique used for multi-elevator installations, in which groups of passengers heading to the same destinations use the same elevators, thereby reducing waiting and travel times. This contrasts with the traditional approach, in which each passenger calls for and enters the first available lift and then ...
Otis elevator in Glasgow, Scotland, imported from the U.S. in 1856 for Gardner's Warehouse, the oldest cast-iron fronted building in the British Isles [7] Otis founded the Otis Elevator Company in Yonkers, New York, in 1853. When he died in 1861 his sons Charles and Norton formed a partnership and continued the business.
Elevator, or lift, a device used for raising and lowering people or goods Paternoster lift, a type of lift using a continuous chain of cars which do not stop; Patient lift, or Hoyer lift, mobile lift, ceiling lift, a lift to assist a caregiver for a disabled patient; Rack lift, a type of elevator; Ski lift, an aerial or surface lift for uphill ...
The International Union of Elevator Constructors (IUEC) is a trade union in the United States and Canada that represents members who construct, modernize, repair, and service elevators, escalators, moving walkways, and other conveyances. The IUEC claims a membership of over 25,000.