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Montgomery Elevator: Acquired by Kone, Canadian division in 1985 and U.S. division in 1994. Marshall Elevator: Sold to Otis; Schweizerische Aufzügefabrik AG; Thyssen AG: Merged with Krupp and became ThyssenKrupp in 1999, with subsidiary ThyssenKrupp Elevator AG; ThyssenKrupp Elevator AG announced in 2021 a name change and rebranding to TK ...
Elevators, as developed for the drilling industry, are a hinged device with handles that are used to wrap around the tool joint of drill pipe, casing or lift nipples (for collars) to facilitate the lifting or lowering of them singly or of the drill string as a whole.
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.
Wittur Group headquarters in Sulzemoos-Wiedenzhausen near Munich, Germany. The Wittur Group, with the operating entity Wittur Holding GmbH, is a worldwide leading producer and supplier of elevator components. Founded 1968 in Germany, the group is today present with various subsidiaries in Europe, Asia and Latin America.
Johnson Lifts invested ₹ 100 crore (equivalent to ₹ 189 crore or US$22 million in 2023) to open a heavy duty escalator manufacturing facility at Oragadam, near Chennai, in May 2012. It is the first escalator manufacturing facility in India. The factory was established with technology transfer from SJEC. [12]
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.
A shopping cart conveyor; also known as Vermaport, Cartveyor or shopping cart escalator; is a device used in multi-level retail stores for moving shopping carts parallel and adjacent to an escalator. Shoppers can load their shopping carts onto the conveyor, step onto the escalator, ride the escalator with the cart beside them and collect the ...
2.5 cm from elevator cabin. 3.0 cm from elevator lobby. 50 cm for door horizontal sensing. 1.8 m for door vertical sensing. Should not fail if any fail-safe related to safety device fails. Response time of the sensing device should be less than 50 milliseconds. Stopping time of the door should be less than 200 milliseconds.