Search results
Results from the WOW.Com Content Network
Lead for mechanical pencils Flexible pencils. Mechanical pencils use mechanical methods to push lead through a hole at the end. These can be divided into two groups: with propelling pencils an internal mechanism is employed to push the lead out from an internal compartment, while clutch pencils merely hold the lead in place (the lead is ...
Laurentien brand coloured pencils are also known as "pencil crayons" in Canada. [2] They were available in packages of differing sizes. Each coloured pencil is painted in a colour matching the lead, and labelled in white (Cotton White has yellow lettering) with both the name of the colour and a number assigned to each colour.
A colored pencil (American English), coloured pencil (Commonwealth English), [1] colour pencil (Indian English), map pencil, [2] pencil crayon, or coloured/colouring lead (Canadian English, Newfoundland English) is a type of pencil constructed of a narrow, pigmented core encased in a wooden cylindrical case.
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 ...
They had a son and two daughters. In 1862, Lipman sold his lead-pencil and eraser patent for $100,000 to Joseph Reckendorfer, who went to sue the pencil manufacturer Faber for infringement. [ 2 ] In 1875, the Supreme Court of the United States ruled against Reckendorfer, declaring the patent invalid because his invention was actually a ...
The Blackwing 602 is a pencil that is noted for its soft, dark graphite, unique flat square ferrule and replaceable eraser. It was manufactured by the Eberhard Faber Pencil Company from 1934 to 1988, then by the Faber-Castell pencil company from 1988 to 1994 and by Sanford from 1994 to 1998. [1] The pencil initially sold for 50 cents each.
Pencils are commonly used at polling stations instead of pens. This is because ink might run on to different sections of the ballot and obscure the voter’s choice. The Facts
A copying pencil, also an indelible pencil or chemical pencil, [1] is a pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite —used in standard graphite pencils—before binding the mixture with clay .