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Digital Collections

Photographs, Stereographs

Apparatus for blowing coat of lime on moving pig moulds after use

  • After 1895

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Public Domain

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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.

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  • 7 in. W x 3 in. H
Subject
Rights Public Domain Mark 1.0
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  • Courtesy of Science History Institute

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“Apparatus for Blowing Coat of Lime on Moving Pig Moulds after Use.” Underwood & Underwood, n.d. Underwood & Underwood Stereographs of Manufacturing Industries. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zw12z529z.

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