Vacuum cleaner of such size and power that it is capable of lifting stone ballast and foreign matter embedded in it from track to cleaning chamber mounted on car has been employed in renovating ballast on Philadelphia division of Pennsylvania. See also description in Ry. Eng. and Maintenance, vol. 21, no. 12, Dec. 1925, pp. 495-496, 2 figs.
Vacuum cleaner renovates ballast on Pennsylvania
Ry. Age
Railway Age ; 79 , n 26
1925
2 pages
2 Figs.
Article (Journal)
English
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