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Scientific American, Vol. 50, No. 23 (June 1884) (1884)
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l beams or angles. or other machinery, occupied thirteen hours. Even had dis- the Union Passenger Railway Company, of Philadelphia, The body of the girder or tube is about 33 inches deep; which company is now completing the laying of 20 miles of patch been unnecessary, it might have taken two weeks… … A NEW SYSTEM OF WROUGHT IRON TUBE FOR CABLE RAILWAYS. © 1884 SCIENTIFIC AMERICAN, INCPatented · Iron · Water · Pipe · Valve · Patents · Scientific American · Steel · Side boards · Transverse channel · Cast Iron · Horse power · Wrought iron · Steam pipe · Sulphuric acid · Carbonic acid · Stove pipe
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