. The street railway review . ELEVATION (IF TUNNEL PORTAL. pulsating, almost animated, mass of machinery which fillsthe tasteful buildings. William Elkins, Jr., the presidentof the Pennsylvania Company, B. W. Grist, C. E., andEngineer S. Potis, of the West Chicago Street Railroadhave acquired more than passing distinction in the successof this great work. THE SIGNALING DEVICE. The signaling device shown in our engraving is placedin the Blue Island station and connects each block of theHalsted street and the Blue Island avenue lines with thepower house. At a convenient point in each block, and
. The street railway review . ELEVATION (IF TUNNEL PORTAL. pulsating, almost animated, mass of machinery which fillsthe tasteful buildings. William Elkins, Jr., the presidentof the Pennsylvania Company, B. W. Grist, C. E., andEngineer S. Potis, of the West Chicago Street Railroadhave acquired more than passing distinction in the successof this great work. THE SIGNALING DEVICE. The signaling device shown in our engraving is placedin the Blue Island station and connects each block of theHalsted street and the Blue Island avenue lines with thepower house. At a convenient point in each block, and The sijinal reads on the ribbon thus: lo TO lo 111= 33 The Blue Island and the Van Buren street power houses are also connected by similar signals. Above the signals are the steam pressure gauge and low water ELECTRIC SIGNALING DEVICE. THE VAN BUREN STREET TUNNEL. Just between Van Buren and Jackson streets and run-ning from Franklin street on the east to Clinton street onthe west side of the river is the greatest single span tun-nel in the world. It is built on private property, at theexpense of $1,600,000 and in the face of almost insuper-able difficulties. It was begun early in 1S91 and has nowtriumphed over mud, madness and misery of law tunnel is 1,514 feet from entrance to entrance and
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
