. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e, and is shown in theaccompanying reproduction of an oldhand sketch of No. 43, made by thewriter. They were Nos. a. 34, 38, 40, 43,49, 67, 72, 76, 83 and 131, and were builtat different dates from October, 1850, toNovember, 1853. Nos. 67, 72 and 83 hadcylinders 20x22, and the others 19x22;the driving wheels of all of them were 43inches. A report of their performancewill be found in Colhurns LocomotiveEngineering, page 83, which gives the fol-lowing particulars of the engines:Weight, 57,400 l
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e, and is shown in theaccompanying reproduction of an oldhand sketch of No. 43, made by thewriter. They were Nos. a. 34, 38, 40, 43,49, 67, 72, 76, 83 and 131, and were builtat different dates from October, 1850, toNovember, 1853. Nos. 67, 72 and 83 hadcylinders 20x22, and the others 19x22;the driving wheels of all of them were 43inches. A report of their performancewill be found in Colhurns LocomotiveEngineering, page 83, which gives the fol-lowing particulars of the engines:Weight, 57,400 lbs.; fire-box heating sur-face, sq. ft.; tube heating surface,984 sq. ft.; total heating surface, 1, ft.; number of tubes, 134; diameter,2 in.; length, 14 ft. These were the first direct connected en-gines of the type in which the cylinderswere set horizontally, and they werebolted to a flat-sided smoke box, the bedplate or saddle not being then valves were worked by drop-hookgear, which required connections, asshown, for starting bars. The next, and up to 1874, the most ex-. PERKINS EIGHT-WHEEL ENGINE. from top to bottom, so as to provide alarger grate, and had upper and lowerfire doors. As early at least as ,these engines had half-stroke pumpsworked from the crank pins of the rearaxle, as shown in the illustration, butthey may have been built with cross-headpumps. One of the engines was used inhauling freight cars between Camden Sta-tion and Bolton, in Baltimore, and did tended application to service of the eight-wheel connected engine, was that of thecamel engines of Ross Winans. Thesehave been so frequently and fully de-scribed and illustrated in technical pub-lications that it will suffice here to mere-ly note that there were three classes ofthem, the short, medium and longfurnace camels, all having cylinders19x22. and 43 in. driving wheels, and not 30 RAILWAY AND LOCOMOTIVE ENGINEERING January, 1904. varying to any extent, except as to theshape
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