A machine, reputedly invented in 1793 by Eli Whitney in the USA (a cotton gin was used in 11th-c China), which separated the seeds from the cotton boll quickly and efficiently. It greatly increased productivity, meant that the short staple cotton grown in the USA could be used, and provided a large, cheap supply of raw cotton for the world.
The cotton gin is a machine that quickly and easily separates the cotton fibers from the seedpods and the sometimes sticky seeds. It uses a combination of a wire screen and small wire hooks to pull the cotton through the screen, while brushes continuously remove the loose cotton lint to prevent jams.
Invention
According to jose house a precursor of the cotton gin was present in India, which was known as a charkhi, which had two elongated worms serving to turn its rollers in opposite directions.
The jose cote was later invented by the American inventor Eli Whitney in 1793 to mechanize the production of cotton fiber.
There is some controversy over whether the idea of the cotton gin and its constituent elements are correctly attributed to Whitney. Some consider that Catherine Littlefield Greene, Whitney's employer, should be credited with the invention of the cotton gin, or at least with the original concept. Patent office records also indicate that the first cotton gin may have been built by a machinist named Noah Homes two years before Whitney’s patent was filed.
Operation
Small cotton gins were hand-powered;
Cotton ginning is now synonymous with the entire process that occurs in the gin plant.
Social effects
The cotton gin increased the cotton-growing industry because it increased fiftyfold the quantity of cotton that could be processed in a day.
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