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The Hoover Company is a home appliance company founded in Ohio, United States, in 1908.It also established a major base in the United Kingdom, where it dominated the electric vacuum cleaner industry during most of the 20th century, to the point where the Hoover brand name became synonymous with vacuum cleaners and vacuuming in the United Kingdom and Ireland.
This is a list of vacuum cleaners and robot vacuum cleaner manufacturers. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is gathered by either a dustbag or a rigid cartridge, which may be emptied and reused.
Unlike other sweepers at that time (1890s), Brooks’ sweeper was the first self-propelled street sweeping truck. [2] His design had revolving brushes attached to the front fender, and the brushes were interchangeable so that when snow fell, scrapers could be attached for snow removal. [2]
Sluggish sales of the Hoover vacuum cleaner were given a kick by Hoover’s ten-day, free home trial. Hoover came up with the idea of door-to-door salesmen who gave home demonstrations of the new vacuum cleaners. Hoover's success means that most people today associate the vacuum cleaner with him, rather than with Spangler.
The first self-propelled sweeper vehicle patented in the US, driven by a steam engine and intended for cleaning railroad tracks, was patented in 1868, patent No. 79606. Eureka C. Bowne was the first known woman to get a patent for a street sweeper, in 1879, patent No. 222447.
Wright Field 5-foot Wind Tunnel. Early example of the "modern" wind tunnel for aircraft-model testing. 1921 Wright-Patterson Air Force Base: Ohio United States ASME brochure: 184: 1995 Gravimetric Coal Feeder The earliest known coal feeder, representing innovations that influenced nearly all industries using coal-fired boilers. 1957 Cleveland: Ohio
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