The History Of Pencils PowerPoint PPT Presentation

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Title: The History Of Pencils


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The History Of Pencils
  • By Michael Fierro

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Where/How It Started
  • The origin goes back to 1565, when a substance
    was found in Borrowdale, England.
  • In 1761 cabinetmaker Kaspar Faber settled in
    Stein, Germany to make his first simple pencils. 
  • Graphite was cut into narrow sticks and glued
    between two pieces of wood.

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Improvement
  • In 1794 the Graphite-Clay process was invented.
  • Powdered graphite was mixed with clay, shaped
    into thin rods.
  • The greater the graphite content the softer
    and darker the lead.
  • The greater the clay content the harder
    and lighter the lead.

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