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A simple dumbwaiter is a movable frame in a shaft, dropped by a rope on a pulley, guided by rails; most dumbwaiters have a shaft, cart, and capacity smaller than those of passenger elevators, usually 45 to 450 kg (100 to 992 lbs.) [2] Before electric motors were added in the 1920s, dumbwaiters were controlled manually by ropes on pulleys. [1]
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.
Electricians may be employed in the construction of new buildings or maintenance of existing electrical infrastructure, they can also install A/C and Telecommunications systems. [2] [3] Elevator mechanic installs vertical lift and transporting equipment. Fencer, a tradesperson who builds fences. Glazier, installs glass.
The company's products are used in various industries such as construction, fit-outs, industrial maintenance, material handling, and facilities maintenance. JLG was founded in 1969 and operated independently until its acquisition by Oshkosh Corporation in 2006.
The EPC contractor coordinates all design, procurement and construction work and ensures that the whole project is completed as required and in time. They may or may not undertake actual site work. EPC companies are often used in large-scale projects, such as power plants, refineries, chemical processing facilities, infrastructure projects, and ...
WSP office in Markham, Ontario, Canada WSP USA offices in New York City.. WSP Global Inc. is a Canadian consulting firm working mostly in the built environment.It was created in 2012, following Montreal-based Genivar's takeover of British firm WSP Group plc.
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General Construction. D.M. Consunji Inc. is a wholly owned subsidiary engaged in general construction services – the company’s core business. The subsidiary was founded in 1954. In late 1992, it received an award from the Construction Industry Authority of the Philippines for outstanding constructor in the building category from 1986–1992 ...