Oscar Kjellberg [SEP] date of death
Oscar Kjellberg
Oscar Kjellberg (21 September 1870 – 5 July 1931) was a Swedish inventor and industrialist. Founder of Elektriska Svetsnings-Aktiebolaget (ESAB), in 1904, and Kjellberg Finsterwalde, in 1922. He invented the coated electrode used in manual metal arc welding (Swedish Patent: 27152, June 29, 1907), by dipping a bare iron wire in a thick mixture of carbonates and silicates. The purpose of the coating is to protect the molten metal from oxygen and nitrogen present in the atmosphere. His
industries.
Early history.
On 27 June 1908, the Swede Oscar Kjellberg received German Imperial patent no. 231733 "Electrode and procedure for electrical soldering" and is therefore recognised as the inventor of the coated welding electrode.
In his capacity as general manager of the company ESAB, in 1921 Kjellberg established Kjellberg Elektroden GmbH in Berlin together with six German and Swedish partners, for the purpose of manufacturing and marketing the patented welding electrodes. For lack of suitable power sources and at Oscar Kjellberg's suggestion, Kjellberg Elektro