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A man from Baltimore, Maryland by the name of Ralph Collier received a patent in 1856 for a mixer with moving elements. Then, in England, E.P. Griffith patented his whisky invention in 1857. J.F. and E.P. Monroe invented a hand-cranked egg beater in the US a few years later, in 1859.
One of the first companies to purchase the egg beater patent was the Dover Stamping Company, whose Dover egg beaters became a well-known American brand. The term “Dover beater” had gained popularity by February 1929, as evidenced by a recipe published in the Cedar Rapids, Iowa, Gazette newspaper. This recipe was for “Hur-Mon Bavarian Cream,” a tasty treat prepared with ginger ale, banana, whipped cream, and gelatin.
Also created in England was the Monroe design. Turner Williams of Providence, Rhode Island, developed an alternative Dover egg beater device in 1870. Then, in 1884, Cincinnati, Ohio’s Willis Johnson developed some significant improvements for the egg beater.
It is thought that Rufus Eastman, an American, invented the first electric motor mixer in 1885. One of the first manufacturers of large industrial mixers was Hobart Manufacturing Company, which attributes much of its success to a new type they introduced in 1914.
Two of the first electric mixer brands in the US were Hobart KitchenAid and Sunbeam Mixmaster, which were introduced in 1910. Electric mixers were not very common in homes prior to the 1920s, but throughout that decade they gained a lot of traction in daily cookery.
An electric standing mixer was invented in 1908 by Herbert Johnston, an engineer employed by the Hobart Manufacturing Company. After observing a baker mix bread dough with a metal spoon, he had the idea and began experimenting with a machine that might accomplish the same task.
The 20-gallon (80 L) mixer was a standard instrument in many large bakeries by 1915. Then, Hobart introduced the Kitchen Aid Food Preparer, a stand mixer intended for domestic usage, in 1919.
H/T : happiness-life.org