692 



REPORT OF NATIONAL MUSEUM, 1889. 



METAL TRACK IN ENGLAND AND HER COLONIES. 



Fig. 100 illustrates the steel cross-tie, riveted chair ami wedge in use 

 on the London and Northwestern Railway in 1889. Steel wedges as 

 well as wedges of wood are used to keep the "bull-headed" rail in place. 



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Fig. 100. 

 Metal Tkack, London and No kth western Railway of England, 1889. 



(From a drawing in the U. S. National Museum.) 



The iron cross-tie on the Midland Railway is somewhat similar to that 

 used on tbeLondon and Northwestern (seeFig.101). The chair, however, 



Fig. 101. 

 Metal Tkack, Midland Railway of England, 1889. 



(From n drawing in the U. S. National Museum. ) 



is attached to the cross-tie by bolts and nuts, instead of by rivets as 

 in the former system. The ends of the ties on the outer sides of the 

 double tracks are generally depressed as shown. Between the tracks 

 the ends are left open, so that the ballast may be properly tamped. 





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Fig. 102. 

 Metal Tkack, Normanton Line, Queensland, 1889. 



{From a drawing in the V. S. National Museum.) 



Iron cross-ties are also used on the Normanton line, Queensland, see 

 Fig. 102, the rail being held in position by an adjustable clip, on the in- 

 side of the base, with nut and screw arranged so that slight corrections 

 in the gauge can be made when necessary. 



Fig. 103. 

 Metal "Pot" Tie System, Midland Railway of India, 1889. 



(From a drawing in the U. S. National Museum. ) 



On the Indian Midland Railway the cast "pot" tie has been used with 

 favorable results. See Fig. 103. The gauge is maintained by iron rods 



