| Show 1111 AV t Vc w tiny liny Havn V e nr ANI on OU the Ih eve of n a l revolution In railway uch au aum ii 11 l hAs m II never r been en e n nines cince the lime Ih h e lon huh of ot Mr H II 8 H pulley M ti I p J id nn mutt 8 Q say 18 tile lIil Mall IIII tji t tIe i I by Iy Mr i hive have tip ui 1 to 10 II now been core care cn fully tUII concealed although tit for lor iii time the Ih lat IlO t eight month months experiment have been curried out omit by tho Client Northern railway with excellent lt JhEl I Invention IJ l tt of n valve i gear geem hy by Mr Marshal Marhl a it 1 1111 rfd which practically Ia 1 en enables ables abl two engines to 10 do tb the Ih work which now required three Aud without In III fuel consumption As 8 British spend n a year on ou the th of ot locomotive a It of ot cial million a It year Is 18 UM It I Ia not nol tot too much to 10 say nay lIa that hat 54 Mil l wr c nt or CO per Item cent of time the HI en in 1 It d IS lit lost moat by the pre ent method of 01 rl Ir of if Title This Is la largely obviated by 11 the tho new to Apart A part train from technicality the tho Principle of lit time the gear In lit that th the Inlet filth and exhaust t ore mute not only rapidly opened hut hUI remain opan for tor or a il t consid considerable erable hi pat part of tit f revolution nl ni iowa owe iii frosh steam to t bo ho illicitly kly ud ad II the exhausted steam SINOI to 10 be fully removed lI On the Iha first Journey Journe the locomotive 1111 with time the new valve hault i a oad ac a above 18 Ita usual maximum at a low ov steam of tim HOlt Four Ira daya later ater this load woe Increased w ill p per r cent ordinary booked l load nd and ROIl the Ih locomotive WR nn nut rumi nver one of the IIII flOut routes on 1111 the time line hue The thu result was no so encouraging that lImit on May Mil U II and unel 10 the tIme wan tun Ilin I III n competition with nn lilt ordinary engine tn to discover the Ihl In Imi coal am rOil The Tue ordinary engine I It n mile nille lie the Improved one tier per II mite mila although tint thu load on Olt the latter I Iu br r r part hart of ot the way This Tide enormous Willi not lIot however over oer experiments which h I Ill a Ii longer period III In these while tIm ordinary engine consumed an en avot itIC age 1 of Mutt per ir nub the Ihl hr Improved one took look only The net lIt r nf of time the ex wa lVa this that timi with the IIII n new w gear only a it lower boiler pressure I 1 III necessary ond auth more mar work Ii In got 01 out of the lite Ih Itt AIn gun gen generated orated Loads Loade can lit lie drawn dra 11 at nt Km a 3 per new rent ll greater Iler titan than those to engine of nf a similar type The Vim new II will be e in use till on the new of the Orent treat Northern railway from London to York |
