The Surveyor and municipal engineer . a passage along thoconductor as has the trolley wheel or bar in the overheadsystem, and no difficulty is to be apprehended on this shoe is attached to the truck of the car just in front ofthe wheels, and, while allowed free lateral motion in relationto the car, it is very tirmly secured, so that it easily clearsthe slot of any stones or other matter that maybe lodgedthere. Any type of electric car can, of course, be used with thissystem. For the line at Prescot a small but neatly-designedcar has been built, which weighs 5 tons 13 cwt., and hassea
The Surveyor and municipal engineer . a passage along thoconductor as has the trolley wheel or bar in the overheadsystem, and no difficulty is to be apprehended on this shoe is attached to the truck of the car just in front ofthe wheels, and, while allowed free lateral motion in relationto the car, it is very tirmly secured, so that it easily clearsthe slot of any stones or other matter that maybe lodgedthere. Any type of electric car can, of course, be used with thissystem. For the line at Prescot a small but neatly-designedcar has been built, which weighs 5 tons 13 cwt., and hasseating accommodation for twenty persons, the two motorsbeing 15 horse-power each. The advantages claimed by the pi-omoters for this systemare ; (1) Freedom from street obstruction, such as poles andoverhead wires ; (2) high permanent insulation ; (3) accessi-bility of electric fittings for repairs and renewals over ordinaryelectric conduit systems; and (4) economy in constructionand simplicity. As the system has not been as yet adopted. EESE^f^^^ SlMTLKx — OK TRACK AND CoNDUIT BETWKEN OaTCIIWAVS. width of 1 ft. 8 in., with a total depth of 1 ft. lOJ in.; not alarge excavation as tramway conduits go. In special cases,as, for instance, in crossing bridges, the total depth can bereduced to 12 in. But the distinctive fcalnros of the system are the use of aflexible cable and tho arrangements for supporting it in thoconduit, and to these wo now turn, taking first the ordinary in-sulator or carrying bar, on which tho cable is loosely supported(see illustration). These occur on straight runs at intervalsof 3 ft.— , there is an insulator at tho junction of everypair of rail ends. At these points ;i are let into theconduit between the yokes, which are here IS in. apart. Abox or hand-hole is thus formed, with a framework and coverof cast iron. In tho framework of each box, a little belowthe cover, there is a socket, into which n square bar of iron
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgreatbritain, bookyea
