Lampblack sentence example

lampblack
  • The most common varieties met with are lampblack, gas carbon, wood charcoal, animal charcoal and coke.

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  • Lampblack is prepared by burning tar, resin, turpentine and other substances rich in carbon, with a limited supply of air; the products of combustion being conducted into condensing chambers in which cloths are suspended, on which the carbon collects.

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  • It consists of a smoked cylinder revolving by means of clockwork at a known speed, and a style or pen which inscribes its surface by scratching or brushing away the lampblack.

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