Oscar Kjellberg

Oscar Kjellberg was a Swedish inventor and industrialist. Founder of ESAB, in 1904. He invented the coated electrode used in manual metal arc welding (Patent 231733) (note to editors, this patent number in the USA is for carpet padding from 1880, not welding, so either the number is wrong or from some other country), by dipping a bare iron wire in a thick mixture of carbonates and silicates. The purpose of the coating was to protect the molten metal from oxygen and nitrogen. His pioneering of covered electrode development paved the road during the next twenty years in the research of reliable flux coated electrodes.

See also: Welding

External links

Esab (http://www.esab.com/) - Official site

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