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One of those was Eberhard Faber of New York, who became the leader in pencil production. For those who "did not feel comfortable using a stub, pencil extenders were sold. Consequently, it was called plumbago Latin for "lead ore ". This was not the only pencil-making occurring in Concord. The town of Keswick , near the original findings of block graphite, still manufactures pencils, the factory also being the location of the Cumberland Pencil Museum. He used the first circular saw in pencil production. The use of an extender also has the advantage that the pencil does not appreciably change its heft as it wears down. However, the distinctively square English pencils continued to be made with sticks cut from natural graphite into the s. Their version was a flat, oval, more compact type of pencil. France was also unable to import the inferior German graphite pencil substitute. Old Soviet colored pencils with box circa Camel's hair pencil Pencil, from Old French pincel, from Latin penicillus a "little tail" see penis; pincellus is Latin from the post-classical period  originally referred to an artist's fine brush of camel hair, also used for writing before modern lead or chalk pencils. The favoured timber for pencils was Red Cedar as it was aromatic and did not splinter when sharpened. When sufficient stores of graphite had been accumulated, the mines were flooded to prevent theft until more was required. Benjamin Franklin advertised pencils for sale in his Pennsylvania Gazette in , and George Washington used a three-inch pencil when he surveyed the Ohio Territory in One effect of this was that "during World War II rotary pencil sharpeners were outlawed in Britain because they wasted so much scarce lead and wood, and pencils had to be sharpened in the more conservative manner — with knives. In the early 20th century supplies of Red Cedar were dwindling so that pencil manufacturers were forced to recycle the wood from cedar fences and barns to maintain supply. It took the efforts of an officer in Napoleon 's army to change this.
It remains the only large-scale deposit of graphite ever found in this solid form. The use of an extender also has the advantage that the pencil does not appreciably change its heft as it wears down. According to Henry Petroski ,[ citation needed ] transcendentalist philosopher Henry David Thoreau discovered how to make a good pencil out of inferior graphite using clay as the binder ; this invention was prompted by his father's pencil factory in Concord, which employed graphite found in New Hampshire in by Charles Dunbar. Ebenezer did not patent his invention and shared his techniques with anyone. Graphite sticks were initially wrapped in string or sheepskin for stability. By varying the ratio of graphite to clay, the hardness of the graphite rod could also be varied. Consequently, it was called plumbago Latin for "lead ore ". The top sequence shows the old method that required pieces of graphite to be cut to size; the lower sequence is the new, current method using rods of graphite and clay. In the early 20th century supplies of Red Cedar were dwindling so that pencil manufacturers were forced to recycle the wood from cedar fences and barns to maintain supply. Shortly thereafter, a superior technique was discovered: It took the efforts of an officer in Napoleon 's army to change this. The news of the usefulness of these early pencils spread far and wide, attracting the attention of artists all over the known world. For those who "did not feel comfortable using a stub, pencil extenders were sold. One effect of this was that "during World War II rotary pencil sharpeners were outlawed in Britain because they wasted so much scarce lead and wood, and pencils had to be sharpened in the more conservative manner — with knives. He constructed the first of the hexagon- and octagon-shaped wooden casings. Extenders were especially common among engineers and draftsmen, whose favorite pencils were priced dearly. These devices function something like a porte-crayon One of those was Eberhard Faber of New York, who became the leader in pencil production. Their concept involved the hollowing out of a stick of juniper wood. France was also unable to import the inferior German graphite pencil substitute. Their version was a flat, oval, more compact type of pencil. Discovery of graphite deposit As a technique for drawing, the closest predecesor to the pencil was Silverpoint until in some sources say as early as , a large deposit of graphite was discovered on the approach to Grey Knotts from the hamlet of Seathwaite in Borrowdale parish , Cumbria, England. Henry Bessemer 's first successful invention was a method of compressing graphite powder into solid graphite thus allowing the waste from sawing to be reused. Munroe's method of making pencils was painstakingly slow, and in the neighbouring town of Acton , a pencil mill owner named Ebenezer Wood set out to automate the process at his own pencil mill located at Nashoba Brook. The usefulness of graphite for pencils was discovered as well, but graphite for pencils had to be smuggled. England would enjoy a monopoly on the production of pencils until a method of reconstituting the graphite powder was found in in Italy.
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