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He followed Bolton's lead and developed a "Chart for determining the number and size of elevators required for office buildings of a given total occupied floor area". In 1920, Howard B. Cook presented a paper titled "Passenger Elevator Service". [37]
Height Year completed Remarks KONE High-Rise Test Tower (Underground) [1] Kone: Tytyri, Finland: 1,148 ft (350 m) 1997 One of Kone's major achievements in elevator technology was tested at this facility. 1 H1 Tower [2] Hitachi: Guangzhou, China: 897 ft (273 m) 2020 Became the tallest elevator test tower when completed in January 2020 2 Jauhar ...
Height to architectural top (including spires and pinnacles, but not antennas, masts or flagpoles). This measurement is the most widely used and is used to define the rankings of the 100 Tallest Buildings in the World. Highest occupied floor; Height to top of roof (omitted from criteria from November 2009 onwards) [23] Height to tip
In contrast, the Chrysler Building employed a very large 38.1 m (125 ft) spire secretly assembled inside the building to claim the title of world's tallest building with a total height of 318.9 m (1,046 ft), although it had a lower top occupied floor and a shorter height when both buildings' spires were excluded.
Because of the building's height, it was deemed infeasible to have many elevators or large elevator cabins, so the builders contracted with the Otis Elevator Company to make 66 cars that could speed at 1,200 feet per minute (366 m/min), which represented the largest-ever elevator order at the time. [234]
The H1 Tower is an elevator testing tower in Guangzhou, China, owned by Hitachi. At 273.8 m (898 ft) it is the tallest elevator testing tower in the world. Including the 15 m (49 ft) deep basement, the overall height of the tower measures 288.8 m (948 ft). [1] [2] The structure includes 15 elevator test shafts, totaling 2.2 km (1.4 mi) in length.