. The railroad and engineering journal . ed 11 cm. { in.) apart,and intended to carry the insulators. These are shown infigs. 2, 3 and 4, and are of enameled porcelain having be-low a hole and screw by which they are fastened upon theiron tires. On the upper side of the insulator proper P\%a fork F of galvanized iron intended to carry the coppercables, and having on each side a small lug, as shown infigs. 3 and 4. These lugs are intended to hold the clampsor yokes which hold the cables in place, as shown in and 5. At a short distance from each insulator is placeda transverse bar of
. The railroad and engineering journal . ed 11 cm. { in.) apart,and intended to carry the insulators. These are shown infigs. 2, 3 and 4, and are of enameled porcelain having be-low a hole and screw by which they are fastened upon theiron tires. On the upper side of the insulator proper P\%a fork F of galvanized iron intended to carry the coppercables, and having on each side a small lug, as shown infigs. 3 and 4. These lugs are intended to hold the clampsor yokes which hold the cables in place, as shown in and 5. At a short distance from each insulator is placeda transverse bar of iron screwed in the sides of the con-duit, and carrying porcelain insulators with a short curvepiece of galvanized-iron wire attached, as shown in and 6. Each one of these can carry two conductors, and Vol. LXIV, No. 5.] ENGINEERING JOURNAL. 211 the wires serve to measure the differences in potential atcertain points. The conduits are placed under the sidewalks ata depthof about 15 cm. ( in.). At the street-crossings there are. placed Utile wells or pits 6 or 7 m. in depth, which arejoined by a cross conduit. In the smaller streets, where
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
