TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Public Domain Mark 1.0 TI - Apparatus for blowing coat of lime on moving pig moulds after use ID - zw12z529z PB - Underwood & Underwood AV - Underwood & Underwood Stereographs of Manufacturing Industries VL - Underwood & Underwood Stereographs of Manufacturing Industries AN - Underwood & Underwood Stereographs of Manufacturing Industries UR - https://digital.sciencehistory.org/works/zw12z529z AB - View of an apparatus for applying a coat of lime onto molds filled with pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. When processing iron ore into steel, lime forms a highly basic slag, a stony waste matter that is separated in order to refine or purify the iron ore. This photograph is one of a set of fourteen stereographs detailing the production of iron and steel by various processes. KW - Iron industry and trade KW - Steel industry and trade KW - Manufacturing industries LA - ER -