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 Engineering v 163 n 4233 Mar 14 1947 p 201)
Rail joints on London transport tracks
Engineer
Engineer ; 183 , n 4754
1947
Aufsatz (Zeitschrift)
Englisch
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Rail joints on London transport tracks
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