Standard tie plate secured to ties by screw spikes fitted with spring washers used also on joint ties; tie plates have special features; spring washers used under lag screws.
Erie adopts special track details
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 27 , n 4
1931
3 pages
9 Figs.
Aufsatz (Zeitschrift)
Englisch
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