. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . -bars, the resultbeing that two connecting rods wererequired for each cylinder, instead ofone. The slide-valves resemble, and working pressure, coke being engines were very small, weighingbut 9^4 tons, which was no doubtenough for rails of only 35 lbs. peryard. They cost but $3,500 each, andhad small, roughly built tenders carry-ing a water cask. The Dundee & Newtyle Railway, like I Wbtm\ THE EARL OF AIRLIE, 1833. the Earl of Airlie and its mate, theLord Wharncliffe, built a
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . -bars, the resultbeing that two connecting rods wererequired for each cylinder, instead ofone. The slide-valves resemble, and working pressure, coke being engines were very small, weighingbut 9^4 tons, which was no doubtenough for rails of only 35 lbs. peryard. They cost but $3,500 each, andhad small, roughly built tenders carry-ing a water cask. The Dundee & Newtyle Railway, like I Wbtm\ THE EARL OF AIRLIE, 1833. the Earl of Airlie and its mate, theLord Wharncliffe, built at the sametime, were provided with bogies orswivelling trucks under the trailing were certainly the first bogie en-gines in Scotland; in fact, there wereno others then running in the is known that Hedleys PuffingBilly geared engine of 1813 ran on two4-wheeled bogies for some j-ears, theroad being too weak to carry it uponfewer than 8 wheels, and early in 1833R. Stephenson & Co. had sent over anengine for the Schenectady & Sara-toga line, fitted with a leading Kull-: AM) USKD ON THE SVVAiNNINGTON. INCLINE. doubtless were, of tlie cylindrical formpatented by Richard Roberts, of Man-chester, in 1832. These valves, ofwrought iron, were formed of twotubes, one within the other, the largerone having holes to admit direct steaminto the space between the tubes. Thespace being closed at both ends, thesteam escaped through slots at top andbottom into the working cylinder.
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
