London Passenger Transport Board are trying improved method of joining rails on extensions to Central line; mating surfaces of rails and fishplates are machined, to ensure rigid joint; welded 300-ft lengths of rail joined by these machined joints would have no allowance for expansion. (see also Engineer v 183 n 4754 Mar 7 p 205)
Rail joints on London transport tracks
Engineering
Engineering ; 163 , n 4233
1947
Article (Journal)
English
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