,transcrib$ f ! ,june #aibb edition by ,david ,price1 email ccx#jgdpglaf4org 7#a1jjj--,w4 #aib-g-bb74 ,great ,we/]n ,railway4 99 99 99 99 99 ,,in/ructions4 99 99 99 99 99 ,,sup]elevation ,,or 8,,cant40 ,,expansion ,,( ,,rails4 ,,gauge ,,& ,,*eck+ ,,( ,,curves4 99 99 99 99 99 ,w4 ,w4 ,,gri]son1 ,*ief ,eng9e]4 ,,padd+ton1 ,june1 #aibb4 ,,sup]elevation ,,or 8,,cant40 ,to be giv5 to ! ,out] ,rail 9 ,curves rang+ f #f to #bjj ,*a9s ,radius4 ,(fset ,radius ,,m9imum 8,,cant40 ,,maximum 8,,cant40 7,l5g? ( ( ,curve4 ,cord #ff ft47 ,out] ,= a ,out] ,= a rail maximum rail to maximum to be spe$ ( be spe$ ( rais$4 rais$4 ,in*es4 ,*a9s4 ,in*es4 miles p] ,in*es4 miles p] hr4 hr4 #af #f #c #bj #f #be #aj #aj #c #be #e #cj #f #ae #c #cj #d #ce #e #bj #c #ce #e #de #d #be #b #ce #d #de #c #cj #c #dj #d #ej #b #ce #b #dj #d #ej #b #dj #b #dj #e #fj #b #de #b #de #d #fj #b #ej #b #de #e #gj #a #fj #a #de #d #gj #a #gj #a #de #d #gj #a #hj #a #ej #c #gj #a #ij #a #ej #c #gj #a #ajj #a #ej #b #gj #abj #a #ej #b #gj #adj #a #ej #b #gj #afj #ej #a #gj #bjj #ej #a #gj ,! am\nt ( 8cant0 to be giv5 to a curve is gov]n$ by ! spe$ at :i* tra9s run ov] x1 & 9 no case mu/ ! rais+ ( ! out] rail 9 ,runn+ ,l9es be less ?an is giv5 9 ! column head$ 8,m9imum ,cant10 except :]e necess>y to meet special cases1 z at swit*es1 cross+s & junctions4 ,9 curves on fall+ gradi5ts :]e high spe$s are run1 ! out] rail mu/ be kept well up1 :ile on ris+ gradi5ts a less] 8cant10 b )9 ! limits ( ! latt]1 mu/ be giv54 ,on gradi5ts on s+le l9es ! out] rail ( curves mu/1 z a rule1 be rais$ to suit ! spe$ ( desc5d+ tra9s4 ,! sup]elevation mu/ be gradually atta9$ at ! rate ( #a in* 9 ea* #ff feet l5g? z ! curve is approa*$1 ma9ta9$ uni=mly ov] ! :ole l5g? ( ! curve1 & run out aft] pass+ ! curve 9 ! same way4 ,on rev]se curves1 or curves ) v %ort pieces ( /raight betwe5 !m1 ! 8cant0 mu/ be made gradually on ! curves comm5c+ at ! middle ( ! %ort piece ( /raight 9 ! latt] case4 ,,explanation4 ,/ret* a cord measur+ exactly a *a9 7#ff feet7 across ! inn] side ( ! curve1 & measure ! di/ance 7,c ,d7 betwe5 ! inn] edge ( ! rail & ! cord1 z %ewn 9 sket* bel[4 ,look = ?is measurem5t 9 ! column head$ 8,(fset10 opposite to :i*1 9 ! column head$ 8,radius ( ,curve10 w be f\nd ! radius ( ! curve 9 *a9s2 & 9 ! columns head$ 8,m9imum ,cant0 or 8,maximum ,cant0 w be f\nd h[ mu* ! out] rail is to be rais$ above ! inn] "o1 accord+ to ! spe$ ( tra9s4 ,picture3 ,diagram %[+ ! above curve1 (fset etc4 ,,example4 ,suppose ! di/ance betwe5 ! inn] edge ( ! rail & ! cord at ,c ,d is f\nd to be #b in*es1 ! column head$ 8,radius ( ,curve10 %ews x to h a curve ( #dj *a9s radius2 & ^? head$ 8,m9imum ,cant0 or 8,maximum ,cant0 w %ew t ! out] rail mu/ be rais$ #b in*es high] ?an ! inn] "o = a spe$ ( #dj miles an h\r1 or #e in*es = a spe$ ( #fj miles an h\r4 ,,expansion ,,( ,,rails4 ,9 lay+ ! #de ft41 #dd ft4 #f 941 #ci ft4 #e 941 #cb ft41 #bi ft4 & #bf ft4 l5g?s ( rails1 ! foll[+ spaces mu/ be left at ! jo9ts1 accord+ to ! temp]ature = ! expansion & contraction ( ! metal1 viz43-- ,air ,,nature ,,( ,l5g? ( ,rail4 ,temp]ature4 ,,wea!r4 7,degrees ,fahr5heit47 #de #j #cb #j #dd #f #bi #j #ci #e #bf #j #hj ,9 hot ,summ] #e_/cb #c_/cb wea!r #fj ,9 mod]ately #c_/af cool wea!r #cj ,9 cold ,w9t] #ac_/cb #i_/cb wea!r ,= lay+ d[n new p]man5t way iron expansion gauges1 equal 9 ?ickness to ! respective spaces giv51 to be us$4 ,wood5 gauges mu/ on no acc\nt be all[$4 ,! expansion granges mu/1 z f> z possible1 be all[$ to rema9 9 ! jo9ts until !y are prop]ly fi%$ up1 & ! road slew$ into its prop] l9e & 8topp$40 ,,gauge ,,& ,,*eck+ ,,( ,,curves4 ,:5 lay+ new l9es1 or relay+ 9 curves ( #aj *a9s radius & above 9 pla9 l9e "w1 ! gauge ( ! road mu/ be laid to ! /&>d wid? ( #d ft4 #h 941 b 9 curves ( less ?an #aj *a9s radius1 work$ ov] by ,pass5g] & ,goods ,tra9s1 ! gauge may be slightly eas$ accord+ to ! radius ( ! curve & o!r circum/ances4 ,! *eck rail 9 pla9 road is to be second-h& bull-head rail1 & all curves ( ,pass5g] l9es ( #aj *a9s radius1 & "u1 mu/ be cont9u\sly *eck$2 ! *eck rail 9 all cases to ext5d1 :]e possible1 = a l5g? ( #ej feet or !reab\ts outside ! comm5c+ & t]m9at+ po9ts ( ! curve to be *eck$4 ,cont9u\s *eck *airs = pla9 road1 are ( two patt]ns1 "o all[+ a cle>ance ( #a 94 to be us$ 9 curves ( #aj *a9s radius1 & ! o!r all[+ a cle>ance ( #b 94 to be us$ 9 curves "u #aj *a9s1 bo? rails 9 ea*1 case be+ level on top4 ,9 %>p rev]se or 8,s0 curves 9 pla9 l9e "w :]e a piece ( /raight l9e _c be giv51 ! junction ( ! two curves mu/ be laid ) *eck rails on bo? sides1 ea* *eck to be laid to cov] ! o!r = a safe di/ance4