. American railway transportation . Track of Granite Sills plated with Straps of Iron. rolling-stock and volume of traffic the track was relativelyheavy and expensive. This was particularly true in Eng-land and on some American railroads begun before 1835,. Track of Cast-Iron Rails resting on Granite Blocks. up to which time American practise was more influencedby British methods than it was subsequently. Three kinds of rails were used, the one most employedconsisting of strong wooden beams, surfaced with strap 36 AMERICAN RAILWAY TRANSPORTATION iron. The first iron rails used were cast, and,
. American railway transportation . Track of Granite Sills plated with Straps of Iron. rolling-stock and volume of traffic the track was relativelyheavy and expensive. This was particularly true in Eng-land and on some American railroads begun before 1835,. Track of Cast-Iron Rails resting on Granite Blocks. up to which time American practise was more influencedby British methods than it was subsequently. Three kinds of rails were used, the one most employedconsisting of strong wooden beams, surfaced with strap 36 AMERICAN RAILWAY TRANSPORTATION iron. The first iron rails used were cast, and, becausethey were cast iron, their length did not exceed 3J rails were soon substituted for cast-iron ones, andthe length was increased to 15 feet. The weight peryard of these rolled rails sometimes exceeded 40 1844 the rolled-iron rails used in the United Stateswere all imported from England. The road-bed of the Columbia Railroad from Phila-delphia to the Susquehanna River, constructed by theState of Pennsylvania between 1828 and 1834, illustratesin an excellent way the various types of construction fol-lowed in the early days of railroad building. This wasa double-track road miles in length, the entirelength of single t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjec, booksubjectrailroads
