Separate winch car tows latest version of Pullman-Standard Power Ballast Cleaner; other innovations are auger type collector and revolving dirt-lift wheel; safety features include electric clutch on cleaner unit to control excessive tension, and hydraulically actuated over-center mechanical track lock on winch car to hold it in place in event of rail clamp failure.
Improved machine for cleaning ballast
Ry Age
Railway Age ; 133 , n 20
1952
2 pages
Article (Journal)
English
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