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Elevator. Outside of typical elevators, shown in an office building in Portland, Oregon. This elevator to the Alexanderplatz U-Bahn station in Berlin is built with glass walls and doors, exposing the inner workings. An elevator (American English) or lift (Commonwealth English) is a machine that vertically transports people or freight between ...
Wittur Group. 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. The headquarter is located in Sulzemoos - Wiedenzhausen, between Munich and Augsburg .
Elevator operator. The Smith Tower in Seattle, Washington uses traditional elevator operators, as seen in this 2008 photo. An elevator operator (North American English), liftman (in Commonwealth English, usually lift attendant), or lift girl (in British English), is a person specifically employed to operate a manually operated elevator. [1]
Trapped-key interlocking is a method of ensuring safety in industrial environments by forcing the operator through a predetermined sequence using a defined selection of keys, locks and switches. It is called trapped key as it works by releasing and trapping keys in a predetermined sequence. After the control or power has been isolated, a key is ...
The operator is placed in the space above the sliding door. An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs.
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.
Alexander Miles, circa 1895. Alexander Miles (May 18, 1838 – May 7, 1918) was an African American inventor and businessman, known for being awarded a patent for automatically opening and closing elevator doors. He was awarded U.S. patent 371,207 on October 11, 1887.
The Mitsubishi Electric-owned Solae Test Tower (173 m) in Inazawa City, Japan is the world's 4th tallest elevator testing tower after Hyundai elevator test tower at Icheon plant (205 m) South Korea, the Kone Tytyri test tower (235 m) and the Rottweil Test Tower (246 m)
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