# Alexandre Debain

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thumb|150px|right|Harmonium Debain
'''Alexandre-François Debain''' (6 July 1809 – 3 December 1877) was a French inventor who developed the [harmonium](/source/Pump_organ). He made a new action system, in which, when depressing a note on the keyboard, a valve opened thereby emitting sound from the instrument.  He patented it in Paris in 1842.<ref>{{cite web|url= http://www.harmoniumnet.nl/pumporgan.html|title= The worldly counterpart to the 'circular saw of faith'.|author= Christo Lelie|date= 18 July 2009|publisher= |accessdate= 4 June 2012|archive-url= https://web.archive.org/web/20101111233907/http://www.harmoniumnet.nl/pumporgan.html|archive-date= 11 November 2010|url-status= dead}}</ref>

== Notes ==
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== External links ==
* [http://www.fortepian.instrumenty.edu.pl/en/pianos/show/piano/126 Harmonicord by Alexandre Debain, Paris ca. 1854-55 (''The Piano in Polish Collections'')]

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{{DEFAULTSORT:Debain, Alexandre}}
Category:French musical instrument makers
Category:1809 births
Category:1877 deaths
Category:Place of birth missing
Category:19th-century French artisans

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Adapted from the Wikipedia article [Alexandre Debain](https://en.wikipedia.org/wiki/Alexandre_Debain) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Alexandre_Debain?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.