18. saj leiutatud metallurgiline protsess madalsüsinikterase (sepistatava raua) tootmiseks toormalmi kiirgusahju oksüdeerivas keskkonnas segamise teel nn pudeldusräbuga (vt toormalm, sepistatav raud, kiirgusahi), the process of converting pig iron to wrought iron during stirring of molten pig iron in a reverberatory furnace in an oxidizing atmosphere (see: pig iron, wrought iron, reverberatory furnace)