. The Street railway journal . THE DICKINSON TROLLEY insulated return farthest from and nearest to the generat-ing station. If at any time such difference of potential ex-ceeds the limit of 7 volts the company must take imme-diate steps to reduce it below that limit. SYSTEMS OF DISTRIBUTION Underground feeders are the rule throughout all thecities of Great Britain. They are carried in conduits of. Struet Ry. Journal Side Elevation. Cross Section. SIDE AND END VIEWS, GLASGOW DOUBLE-TRUCK CAR extent, but recently the Columbia bond, made in America,and the Neptune bond, made in Germany, have come
. The Street railway journal . THE DICKINSON TROLLEY insulated return farthest from and nearest to the generat-ing station. If at any time such difference of potential ex-ceeds the limit of 7 volts the company must take imme-diate steps to reduce it below that limit. SYSTEMS OF DISTRIBUTION Underground feeders are the rule throughout all thecities of Great Britain. They are carried in conduits of. Struet Ry. Journal Side Elevation. Cross Section. SIDE AND END VIEWS, GLASGOW DOUBLE-TRUCK CAR extent, but recently the Columbia bond, made in America,and the Neptune bond, made in Germany, have come moreinto favor. The bonding of the rails and the conductivityof the return circuit for electric tramways in England mustbe of the very best character, owing to a rule establishedby the Board of Trade, regulating the pressure drop in the various kinds. The one most used is the Callender solidbitumen system, as illustrated in the drawings. Sometimes wooden troughs are used, sometimes iron,and more recently those of terra-cotta are being plan is to lay these troughs at the proper depth in thestreet, and support the cables upon wooden bridges at October, 1899.] STREET RAILWAY JOURNAL. 671 intervals throughout the length of the troughs, after whichtJie whole trough is filled with bitumen and a tile coverplaced on top, whilst the bitumen is still liquid. Anothersystem, which is a dr
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
