https://en.bharatpedia.org/w/index.php?action=history&feed=atom&title=Automatic_doorAutomatic door - Revision history2026-10-21T11:37:28ZRevision history for this page on the wikiMediaWiki 1.43.6https://en.bharatpedia.org/w/index.php?title=Automatic_door&diff=430383&oldid=prevAjay Kumar: Created a new article2023-09-26T15:54:20Z<p>Created a new article</p>
<p><b>New page</b></p><div>[[File:Thailand Creative and Design Centre tcdc front.jpg|thumb|350px|A pair of automatic doors]]<br />
An '''automatic door''', also known as an '''auto door''', is a [[door]] that opens automatically, without the need for human intervention<ref>{{Cite web |title=Automatic Doors London & Shop Front Doors {{!}} Automaticdoorstore |url=https://www.automaticdoorstore.co.uk/ |access-date=2023-07-18 |website=Automatic Doors Repair |language=en-US}}</ref> or usually upon sensing the approach of a person. A person can be detected by microwave pulses, [[infrared sensors]] , or pressure-sensing pads.<ref>{{Cite web |date=2022-01-15 |title=How do Automatic Doors Work? - DT Services Ltd |url=https://dtservicesltd.co.uk/how-do-automatic-doors-work/ |access-date=2023-02-02 |language=en-US}}</ref><br />
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==History==<br />
In the 1st century AD, mathematician [[Heron of Alexandria]] in [[Roman Egypt]] invented the first known automatic door. He described two different automatic door applications. The first application used heat from a fire lit by the city's temple priest. After a few hours atmospheric pressure built up in a brass vessel causing it to pump water into adjacent containers. These containers acted as weights that – through a series of ropes and pulleys – would open the temple's doors at about the time people were to arrive for prayer. Heron used a similar application to open the gates to the city.<ref>{{cite web|url=https://hellenicnews.com/20717-2/|title=10 Things We Wouldn't Have Without Ancient Greece|website=hellenicnews.com}}</ref><br />
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In 1931, engineers Horace H. Raymond and Sheldon S. Roby of the tool and hardware manufacturer [[Stanley Black & Decker|Stanley Works]] designed the first model of an optical device triggering the opening of an automatic door. The invention was patented and installed in Wilcox's Pier Restaurant in West Haven, Connecticut for the benefit of waiters carrying plates of food and drink. The entire system plus installation was sold for $100.<ref>{{cite web|url=http://www.axisautomatic.com/2016/pdfs/Axis-20-Worlds-First.pdf|title=Axis Automatic Entrance Systems - Automatic and manual doors|website=www.axisautomatic.com}}</ref><ref>{{cite web|url=https://bostonlookingbackward.wordpress.com/2010/06/29/the-magic-eye-sliding-doors/|title=The Magic-Eye Sliding Doors|date=29 June 2010|publisher=}}</ref><br />
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In 1954, Dee Horton and Lew Hewitt invented the first sliding automatic door. The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market.<ref>{{cite web|url=http://www.theneweconomy.com/technology/10-inventions-that-began-life-as-science-fiction|title=10 inventions that began life as science fiction|publisher=}}</ref><br />
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With the invention of the [[Gunn diode]], microwave [[motion detector]]s became common in automatic doors in the 1970s.<ref>[https://www.mpdigest.com/2021/10/21/the-gunn-diode-oscillator-lives-on-and-prospers/ The Gunn Diode Oscillator Lives On…and Prospers]</ref><ref>[https://books.google.com/books?id=3KDVDAAAQBAJ&dq=%22During+the+early+1970s%2C+mechatronic+products+such+as+automatic+door+opener%2C+vending+machines%22&pg=PA44 A Brief History of Mechanical Engineering]</ref> In 1980, the first automatic door using an infrared sensor was introduced.<ref>[https://internationalsecurityjournal.com/optex-celebrates-40th-anniversary/ OPTEX celebrates 40 years of sensor innovation and development in 2019]</ref><br />
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==In popular culture==<br />
* In [[H. G. Wells]]’ 1899 serialised story ''[[When the Sleeper Wakes]]'' appears an automatic door that slides upwards into the ceiling.<br />
* Automatic [[pocket door]]s are a common fixture of the fictional universe of ''[[Star Trek]]''.<br />
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==See also==<br />
* [[Electronic lock]]<br />
* [[High-speed door]]<br />
* [[Platform screen doors]]<br />
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==References==<br />
{{Reflist}}<br />
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{{Authority control}}<br />
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[[Category:Doors| ]]<br />
[[Category:Types of gates]]<br />
[https://otomatikkapiturkiye.com.tr/otomatik-garaj-kapisi-motorlari.html Automatic Garage Door]</div>Ajay Kumar