. The railroad and engineering journal . ried on an extension ofthe frame, the coupled tlriving-wheels being placed underthe boiler, with the truck under the tank. This is thetype of 1878, No. 18, which succeeded No. 17, the type ofi860, in which there was the same arrangement of relativeposition of boiler and tank, but with a single pair of wheelsunder the tank in place of the truck. Nos. 19 and 20, the Northeastern types of 1874 and1887 ; Nos. 21 and 22, the Manchester, Sheffield & Lin-colnshire engines of 1865 and 1879 ; and Nos. 23 and 24,the Glasgow & Southeastern types of 1S73 and 1883,
. The railroad and engineering journal . ried on an extension ofthe frame, the coupled tlriving-wheels being placed underthe boiler, with the truck under the tank. This is thetype of 1878, No. 18, which succeeded No. 17, the type ofi860, in which there was the same arrangement of relativeposition of boiler and tank, but with a single pair of wheelsunder the tank in place of the truck. Nos. 19 and 20, the Northeastern types of 1874 and1887 ; Nos. 21 and 22, the Manchester, Sheffield & Lin-colnshire engines of 1865 and 1879 ; and Nos. 23 and 24,the Glasgow & Southeastern types of 1S73 and 1883, allshow substantially the same arrangement, the coupleddrivers at the rear of the engine, with the leading wheels infront ; in each case the leading wheels have been replacedby a truck in the later types. No. 25, the North British express engine of 1885 ; No. 26, the Lancashire & Yorkshire type of 1886; and No. 27, the Great Southern & Western, of Ireland, pattern of1884, all show engines with coupled drivers and lorward. C. i € i Great SuMliein ami Western (18811. truck. In each of these cases this type of engine withtruck replaced earlier patterns with a single pair of lead-ing wheels. These diagrams show in a very strikng way how gener-ally English engineers have abandoned the rigid wheelbase, and to what extent they have adopted for passengerservice the American type of engine in its general out-lines. The truck is now in use in the standard passengerengines of all except two or three of the principal Englishroads. It has been adopted in that country to a very muchgreater extent than on the railroads of France and Ger-many, where as yet the American type is very little known. It must be remarked that this adoption of the truck inEngland has not resulted from any expectation of increase ofpower of the engine, which, of course, could not be securedin this way, nor has it been done to save the road bed, for,as is well known, the English lines are of extreme soli
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
