Article describes most recent practice on Pennsylvania Railroad, involving use of fully automatic machine designed by F. M. GRAHAM, which employs oxeyacetylene flame and water quench; through use of machine, end hardening process is timed and controlled accurately in accordance with predetermined standard, and human element is eliminated, insuring high degree of uniformity.
Rail end hardening on Pennsylvania
Ry Eng Maintenance
Railway Engineering and Maintenance ; 35 , n 4 ; p 240-242
1939
3 pages
Aufsatz (Zeitschrift)
Englisch
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