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A typical construction of a ratchet-based mechanical pencil. 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 ...
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 writing tool is developed with a conical and retractable tip and has a texturized grip made of Macrolon resin. [30] Under the top of the push button, there is a replaceable eraser. The interior container holds a thin needle for cleaning graphite jams. The pencil has a rounded clip and comes in two lead sizes – 0.7 and 0.5 mm. [31]
In 1949, Staedtler began the production of ballpoint pens, which started to be widely used instead of fountain pens (although Staedtler still produces the latter today). In 1950 propelling pencils (or mechanical pencils) began to be manufactured, the first being made out of wood. Four years later, the "Lumocolor" brand was registered.
In 1955, Scripto was the first to introduce what it called Fluidlead. This was a pencil that wrote like a pen using liquid graphite. Another company, Parker Pens, had developed a similar product called Liquid Lead that was a few months behind Scripto in production. To avoid a costly patent fight the two companies agreed to share their formulas ...
At the 1889 World Fair in Paris, the Hardtmuths displayed their pencils rebranded as "Koh-I-Noor Hardtmuth". Each pencil was encased in a yellow cedar -wood barrel. The inspiration for the name was the Koh-i-Noor diamond (Persian for "Mountain of Light"), part of the Crown Jewels of the United Kingdom, and the largest diamond in the world at ...
The current product line includes fountain pens, ballpoint pens, gel pens, and mechanical pencils. [13] The first Cross fountain pens were likely produced in 1930, but not again until the 1980s. Cross writing instruments are generally sold in the mid-range of the market, rather than the extreme luxury end.
Current range of instruments manufactured by Ballograf include mechanical pencils and ballpoint pens. The company is also distributor of several brands in Sweden, such as Sheaffer, Staedtler and Cross, which allow Ballograf to expand its variety to fountain and rollerball pens. [3]
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