. The Street railway journal . Street Railway Roadbed. By Mason D. Pratt. //.—Modern Girder Rail Sections. At the beginning of the present decade the six andseven inch sections shown in this and the previous articlewere the most approved rails in use, and indeed theseven inch sections continue to be largely used on elec-tric roads laid in asphalt or brick pavements, or even inshallow Belgian block pavements where the ties are im-bedded in concrete. The latter construction while notcommon in this country is coming more into seven inch sections are also the ones most used oncable and
. The Street railway journal . Street Railway Roadbed. By Mason D. Pratt. //.—Modern Girder Rail Sections. At the beginning of the present decade the six andseven inch sections shown in this and the previous articlewere the most approved rails in use, and indeed theseven inch sections continue to be largely used on elec-tric roads laid in asphalt or brick pavements, or even inshallow Belgian block pavements where the ties are im-bedded in concrete. The latter construction while notcommon in this country is coming more into seven inch sections are also the ones most used oncable and conduit electric roads, where the rail is sup-ported on cast iron yokes and the pavement rests on aconcrete base. Fig. 47 shows a seven inch rail latelyadopted by the Metropolitan Street Railway Companyof New York City for use on its lines, most of whichwill eventually be cable or conduit electric. It is peculiar. street FIG. 47.—NEW YORK RAIL manufacture presented many difficulties and the railmakers met with many failures in attempting to roll time, thought and money have been expended in ex-periments, with the result that to-day these rails are placedon the market at a price but slightly in advance of ordinaryT rails. So great seemed to bet-he difficulties in the wayat first that many devices were brought forth to accom-plish the purpose without making a solid rail. Themost ingenious of these was the so-called electric railwhich consisted of an ordinary bulb section and a ±shaped base rolled separately, the latter being cut intoshort sections of from four to eight or nine inchesand electrically welded to the head portion at intervalssuited to the tie spacing. By thus rolling the rail in twoseparate parts a very broad base could be produced, anda large economy effected in the omission of the entirelower half of the rail between the ties. This rail was
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
