moving staircase transport people |
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| navigate by keyword : 1859 architecture ascending bed buildings capacity chain commuter consists conveyor countries descending driven escalator escalators floors handrails holidays impractical individually invented large lifts linked massachusetts measure motor move moving numbers pace people practical safety staircase stairway steps track transport world |
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| Invented in 1859 in Massachusetts, Escalators carry people between floors of buildings or structures, it consists of a motor driven chain of individually linked steps on a track they are used around the world where in places lifts would be impractical, they have the capacity to move large numbers of people. Most countries require escalators to have moving handrails that keep pace with the moving bed as a safety measure. |
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