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A carpet sweeper typically consists of a small box. The base of the box has wheels and brushes, connected by a belt or gears or rollers. There is also a container for dirt. The arrangement is such that, when pushed along a floor, the rollers/wheels turn and force the brushes to rotate. The brushes sweep dirt and dust from the floor into the ...
Patent model of Daniel Hess's carpet sweeper. In 1860 a manual vacuum cleaner was invented by Daniel Hess of West Union, Iowa. Called a "carpet sweeper", it gathered dust with a rotating brush and had a bellows for generating suction. [4] [5] Another early model (1869) was the "Whirlwind", invented in Chicago in 1868 by Ives W. McGaffey. The ...
eBay office in Toronto, Canada. eBay Inc. (/ ˈ iː b eɪ / EE-bay, often stylized as ebay or Ebay) is an American multinational e-commerce company based in San Jose, California, that allows users to buy or view items via retail sales through online marketplaces and websites in 190 markets worldwide.
Sweeper is used to clean a sidewalk alongside pedestrians in Philadelphia, 2015. Street sweepers are capable of collecting small particles of debris. [2] Many street sweepers produced today are PM10 and PM2.5 certified, [3] meaning that they are capable of collecting and holding particulate matter sized less than 10μm and even down to 2.5μm. [11]
Today, chimney sweeps are still operating, as venting systems for coal, heating oil, natural gas, and wood- and pellet-burning appliances need to be maintained. There is a greater understanding of the dangers of flue deposits and carbon monoxide and gases from combustion. The standard chimney brush is still used, along with more modern tools ...
The 30-round magazine became more common. In 1939, Thompsons' cost the government $209 apiece. By the spring of 1942, cost-reduction design changes had brought this down to $70. In February 1944, the M1A1 reached a low price of $45 each, including accessories and spare parts, although the difference in price between the M1 and M1A1 was only $0.06.
Magnetic naval minesweeper as a monument in Kotka, Finland Siegburg, a modern Ensdorf-class minesweeper of the German Navy. Minesweepers are equipped with mechanical or electrical devices, known as "sweeps", for disabling mines.
A preserved World War II Sherman Crab, an M4 Sherman tank fitted with a flail. A mine flail is a vehicle-mounted device that makes a safe path through a minefield by deliberately detonating land mines in front of the vehicle that carries it.
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