Central features of machine; one of most elaborate units of maintenance-of-way equipment that has yet been built is car-mounted, operated ballast renovating machine; how refuse is disposed of; operation on Pennsylvania; over mile of ballast cleaned each day; careful records made of operation. (see also Eng. News-Rec., vol. 102, no. 4, Jan. 24, 1929, p. 131, 1 fig)
Ballast cleaner on the Pennsylvania completes a mile a day
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 25 , n 1
1929
4 pages
4 Figs.
Article (Journal)
English
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