. 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 . |«lo|0O«]-* r.|-HN°|Hn|« «|oon|«o-|H°Uri|m •-i|^n|mH«i hU (N(M(NC^(M <N(N(N!N<N CS|<N(Nooa50 OrH-<M CO Tfi T—1 I—1 T-< rH rH 1—1 ■r-< r-l. to •p^aq JO 9PIS -l-j CO lb rHCO 0 CO CD 7-< COrH •aSu-Bg JO do^ o r-HO o rH O cq - o pu-B p-eaq aJO uio^^og; COI—( 1-H CO rH •rH°rH •q8M ^JO apig «^ <N . Tf< (N ^ Tt< CO 0) .-( rH tM rH 1—1 •p^aq «JO do J, «! cq Tf< (M rt< Tt< .2 • rH I-H r-
. 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 . |«lo|0O«]-* r.|-HN°|Hn|« «|oon|«o-|H°Uri|m •-i|^n|mH«i hU (N(M(NC^(M <N(N(N!N<N CS|<N(Nooa50 OrH-<M CO Tfi T—1 I—1 T-< rH rH 1—1 ■r-< r-l. to •p^aq JO 9PIS -l-j CO lb rHCO 0 CO CD 7-< COrH •aSu-Bg JO do^ o r-HO o rH O cq - o pu-B p-eaq aJO uio^^og; COI—( 1-H CO rH •rH°rH •q8M ^JO apig «^ <N . Tf< (N ^ Tt< CO 0) .-( rH tM rH 1—1 •p^aq «JO do J, «! cq Tf< (M rt< Tt< .2 • rH I-H r-i rH I—1 r-i H-« n|M ml H—mlM nW Ih * n|» Hlc» rt •pB9q JO J9U _, -joo J9ddj^ f^ Is p4 <ti pq f4P^ p^ •pqin^Cs SuipuBJg d *< ^ -> >> o3 <liC . rH fc£l05 s S 0)O (U m fl M . o ^^ 03 fl .2H o3 S-tfO 4) J3 p^ft . O ^p-< as -g a^ a^ 1 <;u « § <1H<1 <i o 03 Pb 300 RAILROAD CONSTRUCTION. § Fig. 118.—RelationOF Rail to Wheel-tread. The chief features of disagreement among railroad men relateto the radius of the upper corner of the head and the slope of theside of the head. The radius (ys) adopted by the A. S. C. the upper corner (constant for all weights) is a little morethan is advocated by those in favor of sharp corners whoprefer a radius of I. On the other hand it is much less than is advocated by those who consider that itshould be nearly equal to (or even greaterthan) the larger radius universally adoptedfor the. corner of the wheel-flange. Thediscussion turns on the relative rapidity ofrail wear and the wear of the wheel-flangesas affected by the relation of the form of thewheel-tread to that of the rail. It is arguedthat sharp rail corners wear the wheel-flanges so as to produce sharp flanges,which are liable to cause derailment atswitches and also to require that the tires ofengine-drivers must be more frequentlyturned down to their true form. On theothe
Size: 1303px × 1918px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwebbwalt, bookcentury1900, bookdecade1920, bookyear1922
