. The Street railway journal . ins. at base, and 25 ft. long. They are all of redwood, andthat portion which extends into the ground was coated withcrude oil. They are painted a dark green, with a mixture ofJinseed oil, yellow ochre and lamp black. The cross arms are all made of Oregon pine, those carrying October 31, 1903.] STREET RAILWAY JOURNAL. 799 the high-tension wires being 4 ins. x 6 ins. x5 ft, and 4 ins. x 6 ins. x 7 ft. The three high-tension wires are arranged in a triangle on oneside of the pole, making it possible to add an-other set if it is desired. One wire is carriedon the up
. The Street railway journal . ins. at base, and 25 ft. long. They are all of redwood, andthat portion which extends into the ground was coated withcrude oil. They are painted a dark green, with a mixture ofJinseed oil, yellow ochre and lamp black. The cross arms are all made of Oregon pine, those carrying October 31, 1903.] STREET RAILWAY JOURNAL. 799 the high-tension wires being 4 ins. x 6 ins. x5 ft, and 4 ins. x 6 ins. x 7 ft. The three high-tension wires are arranged in a triangle on oneside of the pole, making it possible to add an-other set if it is desired. One wire is carriedon the upper cross-arm and two on the wire is No. o, and is triple braided, water-proof. John Martin No. 100 brown porcelain,single-petticoat, iron-pin insulators are cross-arms carrying the feeder wires are4 ins. x 6 ins. Steel-pin porcelain insulatorsare used. There are at present five feederwires from Millbrae substation, all being500,000 circ. mils. The trolley wire is hard-drawn copper. The span wires are. A FILL ON SAN MATEO LINE
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
