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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 ...
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 ...
Lamy produces mechanical pencils. Some of the other Lamy designs exist in mechanical pencil form, such as the 2000 and the Safari. The Scribble, also designed by Hannes Wettstein, [ 12 ] is a large-bodied pencil with triangular shapes on the body to help the grip.
Lead pencil may refer to: Pencil , a writing implement or art medium usually constructed of a narrow, solid pigment core inside a protective casing Mechanical pencil , a pencil with mechanically extendable solid pigment core called a lead
Product lines include Sharp Kerry, Sharp P200 series, Graph 1000, Graphgear (500, 800 and 1000), Smash, Orenz, OrenzNero (mechanical pencils or "sharps"); Ain and Hi-Polymer (mechanical pencil leads, erasers); Energel (gel ink pens); Vicuña (hybrid ink ballpoint pen); Pentel Pen (permanent marker), and Sign Pen (fine tip marker).
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.