Ads
related to: mechanical chalk pencil
Search results
Results from the WOW.Com Content Network
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 ...
A pencil (/ ˈ p ɛ n s ə l / ⓘ) is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage and keeps it from marking the user's hand. Pencils create marks by physical abrasion, leaving a trail of solid core material that adheres to a sheet of paper or other surface.
The graphite in mechanical pencils is typically much narrower than in wooden pencils, frequently in sub-millimeter diameters. This makes them particularly useful for fine diagrams or small handwriting, although different sizes of refill leads cannot be interchanged in the same pencil unless it has been specially designed for that purpose.
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".
Silverpoint, red chalk, and traces of black pencil on white-coated paper, Kunstmuseum Basel. Silverpoint (one of several types of metalpoint) is a traditional drawing technique and tool first used by medieval scribes on manuscripts.
Afrikaans; العربية; Aragonés; অসমীয়া; Azərbaycanca; বাংলা; Башҡортса; Беларуская; Беларуская ...
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.
Traditional and typical styli used for technical drawing are pencils and technical pens. Video of a 1930s dotted-line drawing pen. Pencils in use are usually mechanical pencils with a standard lead thickness. The usual line widths are 0.35 mm, 0.5 mm, 0.7 mm and 1.0 mm. Hardness varies usually from HB to 2H.
Ads
related to: mechanical chalk pencil