What is the escalator?

The escalator is a mechanized moving staircase, common in places with high traffic or where there would be a very long and tiring climb. Escalators can often be seen in shopping centers, museums, multi -storey parking garages and metro stations. The escalators are often installed in pairs, with the escalator up and the escalator down adjacent, while a single escalator can be changed to go up or down according to the direction of heavier traffic on different daily day. Most escalators also include railings that move in conjunction with the stairs. To move from one end of the escalator to the other, one can simply stand on one step until one reaches the end, or one can climb or descend on the escalator as a conventional stairs. Many escalators in busy areas are wide enough to adapt to two columns of people and those who want to stand conventionally remain on one side of the escalator.

The vast majority of escalators in the world are straight, but there are some spiral models. These are generally used for their aesthetic attraction, but also have the advantage of space savings. Spiral escalators can be seen in Caesar Palace in Las Vegas, Nevada, Westfield San Francisco Center in San Francisco, California and Times Square Mall in Causeway Bay, Hong Kong.

Patent in Massachusetts Nathan Ames won the first patent on the escalator in 1859, although the working model did not appear until 1896. It was when Jesse W. Reno, Lehigh University Graduate in Engineering, installed his 1891 escalator design in Coney Island in New York. In the next few years, more escalators began to appear in public places, and in D, more and more sophisticilyesign and exponentially numerally numerally during the 20th century. Now they are ubiquitous and estimated that an estimated 90 billion people go to escalators each year only in associated withdad.