Tests show that metal railroad ties, constructed by arc welding from worn rails, are not only ten times as strong as ordinary wooden type of tie but can be made at a low cost. See also Welding Engr., vol. 12, no. 7, July 1927, pp. 29-30, 5 figs.
Old rails, welded, make new railroad ties
Iron Trade Rev
Iron Trade Review ; 12 , n 7
1927
2 pages
5 Figs.
Article (Journal)
English
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