In the same year, Qiao Qi Wheeler and Renault Company of the United States obtained another kind of escalator patent, but his patent was ignored for a long time. It was not until 1898 that Charles Seeburg bought his patent and reformed it. The following year, he cooperated with Otis Company to build the first stepped escalator.
Escalators are very suitable for stations, airports, shopping malls and other public places with large passenger flow. 1896, Renault installed four escalators in Siegel Cooper department store in new york. Two years later, Hasidic Company in London, England also ordered and installed one. 1900, an escalator made by Renault was installed at the third avenue station of new york elevated railway to transport passengers, and it has been used until 1955.
19 1 1 year, the vertical height of the escalator installed in London Earl Stadium subway station was 24 meters, which was the highest in the world at that time.
Nowadays, escalators can run at a speed of 36 meters per minute and can carry a large number of passengers. There are more than 65,438+/kloc-0,000,000 escalators in the United States, carrying 3 million passengers every year.