. Railroad construction. Theory and practice. A textbook for the use of students in colleges and technical schools . Col. Robert , Chief Engineer of the Camden and Amboy Railroad;although quite defective in itf: proportions, according to thepresent knowledge of the requirements, it is essentially the pres-ent form. In 1836, Charles Vignoles invented essentially thesame form in England; this form is therefore known throughoutEngland and Europe as the Vignoles rail. 226. Present standard forms. The larger part of modernrailroad track is laid with rails v/hich are either T rails orthe do
. Railroad construction. Theory and practice. A textbook for the use of students in colleges and technical schools . Col. Robert , Chief Engineer of the Camden and Amboy Railroad;although quite defective in itf: proportions, according to thepresent knowledge of the requirements, it is essentially the pres-ent form. In 1836, Charles Vignoles invented essentially thesame form in England; this form is therefore known throughoutEngland and Europe as the Vignoles rail. 226. Present standard forms. The larger part of modernrailroad track is laid with rails v/hich are either T rails orthe double-headed or bull-headed railc which are carried inchairs. The double-headed rail v/as designed with r. symmetri-cal form with the idea that after one head had been worn outby traffic the rail could be reversed, and that its life would bepractically doubled. Experience has shown that the wear of the 256 I 226. RAILS. 257 rail in the chairs is very great; so much so that when one headhas been worn out by traffic the whole rail is generally useless. y/P7Z\ BALT. & OHIO R. 1843. 1826. FISH-BELLY—CAST IRON. CAST IRON.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1913
