Word: operatorless
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Dates: during 1953-1953
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...elevator trend to robot machines is growing. Otis Elevator Co. is building 30 operatorless elevators for Prudential's 41-story Chicago offices, and robot elevators now account for 75% of Otis' sales, v. only...
Westinghouse's engineers, given free rein, also brought forth an operatorless elevator,* which promises to revolutionize city office-building transportation. Each car not only operates itself electrically (it will not stop at a floor where no one has rung), but coordinates its operation with every other car in the system, so that no two stop at the same floor...
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