When the household staff hand-washed the dishes, the delicate china often got chipped. She served the meals on her expensive, heirloom china. As a socialite, she was expected to hold frequent dinner parties. FED UP WITH DIRTY DISHESĬochran’s dishwashing woes began after she married wealthy merchant William Cochran in 1858. The Milestone program honors significant achievements in the history of electrical and electronics engineering. Her technical achievement is worthy of being named an IEEE Milestone, according to the IEEE History Center, but no one has proposed it yet. For Cochran’s invention, she was inducted into the U.S. Her machine was the first to use water pressure instead of scrubbers to clean dishes-which made it more efficient than Houghton’s or Alexander’s versions. Alexander improved on Houghton’s machine by adding a “geared mechanism that allowed the user to spin racked dishes through a tub of water,” according to an entry on reference website ThoughtCo.īut the person we have to thank for the modern-day dishwasher is Josephine Cochran (sometimes spelled Cochrane). It was a wooden box that used a hand-turned wheel to splash water on dirty dishes, and it had scrubbers. The first dishwasher to be granted a patent was invented in 1850 by Joel Houghton. THE INSTITUTE The dishwasher, a popular appliance in kitchens around the world, has gone through a number of iterations throughout its 170-year history.
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