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Booth is known for introducing one of the first powered vacuum cleaners. Before Booth introduced his version of the vacuum cleaner, cleaning machines blew or brushed dirt away, instead of sucking it up. As Booth recalled decades later, in 1901 he attended "a demonstration of an American machine by its inventor" at the Empire Music Hall in London.
James Blaine "Jim" Kirby (September 28, 1884 – June 7, 1971) was an American inventor and self-taught electrical engineer who focused his career on "eliminating the drudgery of housework". He is known mostly for inventing the Kirby vacuum cleaner and the wringerless washing machine.
These machines are able to spray hot soapy water and then suck it back out of the fabric, removing dirt in the process. Wet vacuum cleaner have been modified by end users, adding an internally-mounted sump pump for continuous removal of liquids without having to stop to empty the tank. [25] [better source needed]
David T. Kenney (April 3, 1866 – May 26?, 1922) was an inventor with nine patents, granted between 1903 and 1913, applicable to both machine-driven and manual vacuum cleaners, dominated the vacuum cleaner industry in the United States until the 1920s.
The manual vacuum cleaner was a type of non-electric vacuum cleaner, using suction to remove dirt from carpets, being powered by human muscle, similar in use to a manual lawn mower. Its invention is dated to the second half of the 19th century, when patents were granted to inventors in the United States, Britain, France, and elsewhere.
Ernst Abbe: Invented the first refractometer, and many other devices. Donated his shares in the company Carl Zeiss to form Carl-Zeiss-Stiftung, still in existence today. Franz Carl Achard: Developed a process to produce sugar from sugar beet. Built the first factory for the process in 1802. Robert Adler: Invented a better television remote control.
James Murray Spangler (November 20, 1848 – January 23, 1915) was an American inventor, salesman, and janitor who invented the first commercially successful portable electric vacuum cleaner that revolutionized household carpet cleaning. His device was not the first vacuum cleaner, but it was the first that was practical for home use.
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the