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I <br /> -- - - _ - --�� - -- - - - CURVE TABLES. <br /> ► $: VB <br /> - G 1`� 3 pont Us" aPgents and E*ern*'rto a 1°curve. Tan.and <br /> befamd <br /> 3 r � tM ° <br /> �y4,R .bydiv theTwL <br /> - — ttr � of crave. <br /> "'s a + t External: <br /> . Ext.opposite a gegen Central e.Angle by the given External. <br /> al: <br /> --. _-- ./f ti z(o/, - - —-- o and ATat.Tan.snd Nat.Ea.Sec.for any anilby Tabes I.:Tan. <br /> of Wee the veu ang>E divided by the radius of a 1°curve will <br /> Mat-Tan.or tit.Ex.Sec. <br /> RX"P". <br /> L. o Wanted a Curve with an fit.of about 12 ft. An <br /> 4 <br /> 4•if o of Intersect%% oe.4 P..•.2r 2W to the ft. at Sattion <br /> 120.87+12-10.07. t Say a <br /> 1. f Ext.in Tab. I o °20•=120.87 <br /> - 10°Cave. <br /> C . ° Tan.in Tab. I opp.236 20'=1183.1 <br /> 1193.1+10-118.31. <br /> 70 3[ a <br /> C. L O j� ..c.sfi! _ <br /> -__._- - _ Correction for A.21'2('fora Im Cur..0.16 <br /> " r 118.31+0.16 m 118.47 icor acted lTaagent. <br /> ---- �'fJ----- -_ ._ -____--__. _-_- -- (If corrected Ext,isuued find in same <br /> c Ang.W20'=2&33 f10=2.3333=L.C. <br /> 2°19}'=def,for,sta.. 642 I. P.testa, 50+72--- <br /> --- - - - 7-49 <br /> 18}'o K «. s ` +M Tan.a 1 .18.47 <br /> CB. <br /> .=ems. 541�-83.153 <br /> 9°49}'m ' •' <br /> ll*Zl! s .. y a # L.C.- _2__.33.83 <br /> G 1 86.86 E.C.-Sta. 5�43-F88 86 <br /> 100- ` " •'17X3'(def.for 1 ft."of 10°Cur.)=139.41'= <br /> 2'1!}'..def.for sta.842. <br /> i Mf.tof ft`o"1*"9rfor.a 10-Curve.'_ <br /> Def.for 36.88 ft 1''841"for 10"Curve. <br /> 7 <br /> �ao <br /> l60 • I <br /> 6 7n �; ►o•c,,,,e; <br /> -- <br /> 4 <br /> VfP <br />