Editing Timeline of historic inventions (section)

====1820s====
* '''1822:''' [[Thomas Blanchard (inventor)|Thomas Blanchard]] invents the pattern-tracing lathe (actually more like a [[shaper]]). The lathe can copy symmetrical shapes and is used for making gun stocks, and later, ax handles.<ref name="Thomson 2009">{{cite book
|title= Structures of Change in the Mechanical Age: Technological Invention in the United States 1790-1865
|last= Thomson
|first= Ross
|year= 2009
|publisher= The Johns Hopkins University Press
|location= Baltimore, MD
|isbn= 978-0-8018-9141-0
|url-access= registration
|url= https://archive.org/details/structuresofchan0000thom
}}
</ref><ref name="Hounshell1984p35">{{Harvnb|Hounshell|1984|p=35}}</ref>
* '''1822:''' [[Nicéphore Niépce]] invents [[Heliography]], the first photographic process.
* '''1822:''' [[Charles Babbage]], considered the "[[computer pioneer|father of the computer]]",<ref>{{cite book | author=Halacy, Daniel Stephen | title = Charles Babbage, Father of the Computer | url=https://archive.org/details/charlesbabbagefa00hala | url-access=registration | year = 1970 | publisher=Crowell-Collier Press | isbn = 0-02-741370-5}}</ref> begins building the first programmable [[mechanical computer]].
* '''1823:''' [[Johann Wolfgang Döbereiner]] invents the [[Döbereiner's lamp|first lighter]].
* '''1824:''' [[Johann Nikolaus von Dreyse]] invents the [[bolt action|bolt-action rifle]].<ref>Flatnes, Oyvind. ''From Musket to Metallic Cartridge: A Practical History of Black Powder Firearms''. Crowood Press, 2013, pp. 125–130. {{ISBN|978-1847975935}}</ref>
* '''1824:''' [[William Sturgeon]] invents the [[electromagnet]].<ref>{{cite journal |last=Sturgeon |first=W. |year=1825 |title=Improved Electro Magnetic Apparatus |journal=Trans. Royal Society of Arts, Manufactures, & Commerce |volume=43 |pages=37–52}} cited in {{cite book |last=Miller |first=T.J.E |url=https://books.google.com/books?id=E8VroIWyjB8C&pg=PA7 |title=Electronic Control of Switched Reluctance Machines |publisher=Newnes |year=2001 |isbn=978-0-7506-5073-1 |pages=7 |archive-url=https://web.archive.org/web/20161203032419/https://books.google.com/books?id=E8VroIWyjB8C&pg=PA7 |archive-date=2016-12-03 |url-status=live}}</ref><ref>Windelspecht, Michael. [https://books.google.com/books?id=hX1jPbJVSu4C&dq=%22William+Sturgeon%22+electromagnet+1825&pg=PR22 Groundbreaking Scientific Experiments, Inventions, and Discoveries of the 19th Century] {{webarchive|url=https://web.archive.org/web/20170111015300/https://books.google.com/books?id=hX1jPbJVSu4C&pg=PR22&lpg=PR22&dq=%22William+Sturgeon%22+electromagnet+1825&source=web&ots=BhXj3j9j4t&sig=6gI6QNC-Yc5YMCY5RpEE43eIfgU&hl=en&sa=X&oi=book_result&resnum=9&ct=result|date=2017-01-11}}, xxii, Greenwood Publishing Group, 2003, {{ISBN|0-313-31969-3}}.</ref>
* '''1826:''' [[John Walker (inventor)|John Walker]] invents the friction [[match]].<ref name=BBCwalker>{{cite web |title=John Walker's Friction Light |publisher=BBC |url=https://www.bbc.co.uk/ahistoryoftheworld/objects/hQR9oN5LTeCLcuKfPDMJ9A |access-date=25 August 2011}}</ref>
* '''1826:''' James Sharp invents and goes on to manufacture the first practical [[gas stove]].
* '''1828:''' [[James Beaumont Neilson]] develops the [[hot blast]] process.
* '''1828:''' [[Patrick Bell]] invents the [[reaping machine]].
* '''1828:''' Hungarian physicist [[Ányos Jedlik]] invents the first commutated rotary [[Timeline of the electric motor|electromechanical machine]] with electromagnets.
* '''1829:''' [[Louis Braille]] invents the [[Braille]] reading system for the blind.<ref>{{Cite web |title=What Is Braille? |url=https://www.afb.org/blindness-and-low-vision/braille/what-braille |access-date=2023-04-11 |website=The American Foundation for the Blind |language=en-US}}</ref>
* '''1829:''' William Mann invents the compound [[air compressor]].
* '''1829:''' [[Henry Robinson Palmer]] is awarded a patent for [[corrugated galvanised iron]].