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Whitney's patent was assigned patent number 72X. [19] There is slight controversy over whether the idea of the modern cotton gin and its constituent elements are correctly attributed to Eli Whitney. The popular image of Whitney inventing the cotton gin is attributed to an article on the subject written in the early 1870s and later reprinted in ...
Cotton Gin Patent. It shows sawtooth gin blades, which were not part of Whitney's original patent. A cotton gin on display at the Eli Whitney Museum. The cotton gin is a mechanical device that removes the seeds from cotton, a process that had previously been extremely labor-intensive. The word gin is short for engine.
X-Patent number 72, Eli Whitney's cotton gin. The X-Patents are all the patents issued by the United States Patent and Trademark Office from July 1790 (when the first U.S. patent was issued), to July 1836. The actual number is unknown, but the best estimate is 9,957.
The cotton gin 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. In 1793, Eli Whitney invented the cotton gin and later received a patent on March 14, 1794. [31]
Patent model of Eli Whitney’s cotton gin. A patent model was a handmade miniature model no larger than 12" by 12" by 12" (approximately 30 cm by 30 cm by 30 cm) that showed how an invention works. It was one of the most interesting early features of the United States patent system. [1]
1876: Alexander Graham Bell has a patent granted for the telephone. However, other inventors before Bell had worked on the development of the telephone and the invention had several pioneers. [429] 1877: Thomas Edison invents the first working phonograph. [430] 1878: Henry Fleuss is granted a patent for the first practical rebreather. [431]
There is evidence that a slave named Sam and his father provided Whitney with the idea for a comb-like device to remove seeds from cotton for the cotton gin. [5] Similarly, an enslaved man named Jo Anderson is believed to have helped McCormick develop his reaper.
Eli Whitney's original cotton gin patent, dated March 14, 1794. c. 1600 – The modern spinning wheel comes together with the addition of the treadle to the flyer wheel. 1725 – Basile Bouchon in Lyon invents punched paper data storage as a means for controlling a loom. 1733 – John Kay patents the flying shuttle.