Keywords: Rateau turbo blower 1.png Turbo soufflante de Rateau utilisée aux hauts fourneaux de la Southwark Foundry Machine Company Philadelphie Etats-Unis vers 1915 blower installed at the Southwark Foundry Machine Company blast furnaces Philadelphia United States about 1915 1917 http //babel hathitrust org/cgi/pt id wu 89074783119;view 1up;seq 174 Blast-furnace construction in America p 158 Joseph Esrey Johnson Jr 1870-1919 Custom license marker 2013 06 25 PD-old PD-US Turbomachinery Blowing engines Uploaded with UploadWizard 1915 in Philadelphia |