Illinois Malleable Iron Co. · Illinois Malleable Iron Co. · leaf 273
d fire tools, Tlatings are gross, and it is understood that all piping, mains and risers shall be figuredas radiating surface. The ratings on Imico Steam Boilers are based on the assumption that an average pres-sure of 2 pounds be maintained at the boiler. When soft coal is used, it will be found… … Fig. 9393A SECTIONAL VIEW OF SECTION OF IMICO ILLINOIS BOILER, SHOWING DIAMONDCORRUGATIONS AND WATER CIRCULATION
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