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A paternoster in Prague Paternoster elevator in The Hague, when it was still in operation. A paternoster (/ ˌ p eɪ t ər ˈ n ɒ s t ər /, / ˌ p ɑː-/, or / ˌ p æ-/) or paternoster lift is a passenger elevator which consists of a chain of open compartments (each usually designed for two people) that move slowly in a loop up and down inside a building without stopping.
The elevator strikes were instrumental to the automation of the elevator. As elevators were a dangerous machine that could only be comfortably operated by elevator operators, manufacturers began adding safety features and allowing the elevator to run on its own. [19] New features included emergency phones, emergency stop buttons, and alarms. [19]
The safety and speed of electric elevators were significantly enhanced by Frank Sprague, who added floor control, automatic operation, acceleration control, and further safety devices. His elevator ran faster and with larger loads than hydraulic or steam elevators. 584 of Sprague's elevators were installed before he sold his company to the Otis ...
An elevator plunged to the ground at a construction site. [14] Xiapu County, China: 12 0 1993-06-02 An elevator plunged to the ground from the 20th floor at a construction site. [15] North Point, Hong Kong: 11 2 2019-04-25 An elevator fell at a construction site due to a snapped cable. [16] Hengshui, China: 11 4 2011-07-29
Schindler Holding Ltd. [2] is a Swiss multinational company which manufactures escalators, moving walkways, and elevators worldwide, founded in Switzerland in 1874. Schindler produces, installs, maintains and modernizes lifts and escalators in many types of buildings including residential, commercial and high-rise buildings.
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 ...
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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.