1920s - Technology. This electric vacuum cleaner is a Hoover model 700. Early upright cleaners were heavy and utilitarian, and generally cleaned using suction only. The model 700 was the first Hoover vacuum to have an additional agitator and brush unit to 'beat as it sweeps as it cleans'.
June 8, 1869: Ives McGaffey patents a "sweeping machine." This vacuum cleaner is from 1926-1929. It was the first of its kind to feature an aluminum body, an on/off switch (oooh!), and the agitator brushroll—an innovation that used metal beater strips to vibrate pieces of dirt from carpets.