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welsbach mantle

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Welsbach burner

[welz-bak, -bahk; Ger. vels-bahkh]
–noun Trademark.
a brand of gaslight consisting essentially of a Bunsen burner on which an incombustible mantle (Welsbach mantle) composed of thoria and some ceria becomes brilliantly incandescent when exposed to flame.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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