What is Dishwasher?
[[File:Hotpoint Dishwasher Model HDA460-03AD, IMG02.jpg|thumb|A open dishwasher]] [[File:HOBART DISHWASHER 2.JPG|thumb| A [[Hobart Corporation|Hobart]] brand commercial style dishmachine]] [[File:Geschirrspuelertv.ogv|thumb|Dishwasher working, with a glass door]] The word '''dishwasher''' means either the person who washes (cleans) dishes or a [[machine]] that does the same thing. A person could wash dishes either by hand or by operating a dishwashing machine. == Women's History == Joel Houghton registered the first [[patent]] for a mechanical dishwasher in 1850. The machine was made of wood. A hand crank was used, while water was sprayed onto the dishes.<ref>{{US patent|7365}}</ref> The device was both slow and unreliable. In 1865, L.A. Alexander was granted a patent for a similar device, that used a hand-cranked rack system.<ref>{{US patent|51000A}}</ref> Neither device was practical or widely accepted. Some historians say that one of the main obstancles was that people valued women for the effort they put into the houseork, rather than looking at the resuts; making household chores easier was perceived by some to reduce their value.<ref>{{cite web|date=26 May 2021|title=What Does It Take To Get Us To Try Something New?|url=https://www.npr.org/2021/05/26/1000571927/what-does-it-take-to-get-us-to-try-something-new|work=The Indicator from Planet Money|publisher=[[NPR]]}}</ref> The most successful of the hand-powered dishwashers was invented in 1886 by [[Josephine Cochrane]] together with mechanic George Butters in Cochrane's tool shed in [[Shelbyville, Illinois]].<ref>{{US patent|355139}}</ref> Cochrane, who was a wealthy [[socialite]], wanted to protect her [[china (material)|china]] while it was being washed.<ref>{{Citation |last= Blattman |first= Elissa |title= Three Every-day Items Invented by Women |publisher= National Women's History Museum |year= 2013 |url= https://www.womenshistory.org/articles/three-every-day-items-invented-women}}</ref> Their invention was unveiled at the [[1893 World's Fair]] in [[Ch