Escalator?

The patent 1859 of the first escalator was awarded to Nathan Ames's "spiral staircase" design, but Nathan's design failed to be put into practice. 189 1 year, the escalator was installed at Coney Island Wharf in the United States, which caused a sensation. It was called "Tilting Elevator" at that time and was designed and manufactured by new york entrepreneur Jesse Reynolds. He applied for and invented this patent as early as 1882. This escalator adopts the principle of conveyor belt, and the sectional ramp runs at a slope of 20 degrees to 30 degrees. Both the starting point and the end point of the escalator are provided with a comb shovel with a tooth length of 40 cm, which engages with the concave teeth on the pedal. In China, passengers can get up and down the escalator without lifting their feet when standing on the inclined moving section.

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 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.