Josephine Cochrane

Josephine Cochrane (1839–1913) was an American inventor whose 1886 patent described a practical mechanical dishwasher. She founded a company that manufactured and sold her machines.

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Dishwasher: A machine that cleans dishes using water, detergent, and mechanical action. Cochrane’s invention helped establish the mechanical dishwasher as a practical appliance.
Hand washing: Cleaning objects by rubbing or rinsing them manually with water and cleaning agents. Cochrane sought a machine that would avoid the chipping and breakage she associated with hand washing china.
George Butters: A mechanic who helped build and refine Cochrane’s dishwasher prototypes. Butters worked with Cochrane on constructing the machine she patented.
Palmer House: A historic hotel in Chicago that opened in 1871 and became known for its scale and luxury. The hotel was among the early customers for Cochrane’s commercial dishwashers.
Domestic technology: Tools and systems designed to perform tasks associated with household life. Cochrane’s invention became part of the broader mechanization of domestic work.
Dishwasher history: The development of machines designed to wash dishes, from early patents to modern appliances. Cochrane’s 1886 machine marked a turning point from earlier, less practical designs.
Joel Houghton: An American inventor who patented an early hand-powered dishwashing machine in 1850. His patent preceded Cochrane’s, but its machine did not become a practical commercial product.
William Cochran: Josephine Cochrane’s husband, a businessman and politician who died in 1871. His death left Cochrane managing family finances and preserving the household’s valuable china.
World's Columbian Exposition: A world's fair held in Chicago in 1893 to mark the 400th anniversary of Columbus's voyage. Cochrane displayed her machine there and received recognition for its design.
Household labor: Unpaid or paid work involved in maintaining a household and caring for its members. Dishwashing was a repetitive household task that machines could reduce, though adoption was gradual.