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A mechanical pencil or clutch pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" / ˈ l ɛ d /. The lead , often made of graphite , is not bonded to the outer casing, and the user can mechanically extend it as its point is worn away from use.
It was founded by German immigrant, Ludwig Brenner, [1] to produce his patent propelling pencils which contained twelve three inch leads (that is to say, 36 inches or a yard of lead). Originally based in Premier House, 12-13 Hatton Garden, London, the company moved in the late 1940s to 1 Great Cumberland Place, London.
Silver mechanical pencil Catalogue from 1898 Sampson Mordan (c. 1790 – 9 April 1843) was a British silversmith and a co-inventor of the first patented mechanical pencil . During his youth, he was an apprentice of the inventor and locksmith Joseph Bramah , who patented the first elastic ink reservoir for a fountain pen .
Eversharp is an American brand of writing implements founded by Charles Rood Keeran in 1913 and marketed by Keeran & Co., based in Chicago. [1] Keeran commercialised Eversharp mechanical pencils (manufactured by two companies, Heath and Wahl), [2] [1] then expanding to fountain pens when the company was acquired by the Wahl Adding Machine Co. in 1916 and it was named "Wahl-Eversharp".
The Nashoba Brook Pencil Factory Site contains the ruins of a 19th-century dam-powered pencil factory. This factory was one of several in Acton and Concord, Massachusetts at the time that brought important developments to pencil manufacturing. All that remain today of the factory are the ruins of its dam and a few mechanical components.
In 1861, he opened the first lead pencil factory along the East River, between 41st and 43rd streets, Midtown Manhattan. The factory was established under the name of Eberhard Faber. In 1872, a fire destroyed the factory in Manhattan, and the new Eberhard Faber Pencil Factory was built on a site on Kent and West streets in Greenpoint, Brooklyn. [2]