. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools, and a hand-book for the use of engineers in field and office . TIES OAPPEilGUARD RAILS. PACKING BLOCK ISoCENTER TO CE^TER OF IFOR JWO STORY. BENTS OR mI126*CENTERTO CENTER 0f|FOR ONE STOnr BplTS OR HI NORFOLK & WESTERN 8Tl\NDARD ONE AND TWO STORy TB(SEPT. 10,1891.) ^VAUNQ STRI ONE STORY BENT (h -f- 2.*) + it= length OF SILL. H Il l= LENGTH OF iz XJ2 TIMBER REQUIRED FOR PLUMB POSTS, SINGLE BENT* H —2ll1= « IN LOWER StORY. DOUBLE H — as == « PLUMB POSTS BETWEEN SHOULDERS, SINGLE •

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. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools, and a hand-book for the use of engineers in field and office . TIES OAPPEilGUARD RAILS. PACKING BLOCK ISoCENTER TO CE^TER OF IFOR JWO STORY. BENTS OR mI126*CENTERTO CENTER 0f|FOR ONE STOnr BplTS OR HI NORFOLK & WESTERN 8Tl\NDARD ONE AND TWO STORy TB(SEPT. 10,1891.) ^VAUNQ STRI ONE STORY BENT (h -f- 2.*) + it= length OF SILL. H Il l= LENGTH OF iz XJ2 TIMBER REQUIRED FOR PLUMB POSTS, SINGLE BENT* H —2ll1= « IN LOWER StORY. DOUBLE H — as == « PLUMB POSTS BETWEEN SHOULDERS, SINGLE •• H —22ir= •« DOUBLE (length OF PLUMB POST X )-j-3= LENGTH OF BATTER POST, EXCEPT IN 8x 12°lftTEJ«(EDIATEBATTER POSTS WHERE ADD s INSTEAD OF 3*WITH ALTERNATIVE ARRANGEMENT OF STRINGERS, ADD e TO LENGTHS GIVEN BY ABOVE FOHMULAflt (ro \(JJC6 page 216.) >R STRINGEH TIES I PLATE II. CROSS T!E sx 10x Idokl-ii 15C.|T0C. y-Jj^ ^A |\—^T^ r ^^ **tsi^fi ^5 SUEGRADE _J_

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Keywords: ., bookauthorwebbwalt, bookcentury1900, bookdecade1920, bookyear1922