Escalators

Well that escalated quickly...

How and when it gets invented.

On March 15, 1892 Jesse Reno patented the escalator. He went to college to be an engineer and he learned a lot of new stuff. The patent was sold to Jesse Reno, and he improved the escalator he made an inclined conveyor belt with grooved tread for steady footing. The first escalator was installed alongside the old iron Pier at Coney Island, New York. Jesse Reno also get credit for the first underground escalator, in a subway station, in the form of a spiral.

How it works.

The escalator is ran by a motor that turns the gears. There is a chain on each side of the escalator that are connected to gears that make the chain loops turn. There is also two sets of wheels on the steps that ride along the tracks to make the them move. Chain loops also move a series of steps and at the top and bottom of the escalator they collapse to make a flat surface to get on and off the escalator. In addition to all of this there is a moving hand rail that is looped on a set of wheels so that the riders will have stability.
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Escalator 3D animation - Injury

How it benefits and evolved.

Escalators have evolved a lot. They now have sensors that can slow it down to save energy and they can change their movement during rush hour. They are also very beneficial to people who can't climb steps. Also, if they brake down they can still be used as a staircase. Lastly the material is improved because some are specially made to handle outdoor weather.

Bibliography

HowStuffWorks. HowStuffWorks, 2016. Web. 15 Jan. 2016. <http://www.howstuffworks.com/search.php?terms=escalators&page=0>.



Kuntz, Kirby A. "Escalator." World Book Student. World Book, 2016. Web. 20 Jan. 2016.



Wikipedia. Wikimedia Foundation, 16 Jan. 2016. Web. 19 Jan. 2016. <https://en.wikipedia.org/wiki/Escalator>.



YouTube. YouTube, 11 Mar. 2011. Web. 19 Jan. 2016. <https://www.youtube.com/watch?v=YAgKKpYjPqU>.