STATIONARY ENGINES . 289 corrugated black plates , No . 14 wire gauge in thickness . The spans are 50 feet , the roofs being supported upon lattice girders of an average length of 45 feet The position of the columns is shown on the ground plan , Fig . 195 ; and it will be observed that the entire … Fig . 195 . — General Arrangement of Rolling Mill . Ground Plan . mill floor is free from obstruction . The flooring is of cast - iron plates , 1 inch thick . It had long been feit that the power of rolling wrought iron of large section and great lengths had not kept pace with the require - ments…
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