Improved air brake control valve developed by Westinghouse Air Brake Co; valve provides positive brake operation with rapid serial release action, is simpler in design, and is less costly to maintain; main parts are of aluminum; ring packed pistons are replaced by diaphragm pistons; except at two locations, slide valves are replaced by spool valves, with rubber seal rings.
Advance in freight braking
Ry Age
Railway Age ; 138 , n 9
1955
2 pages
Aufsatz (Zeitschrift)
Englisch
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The freight rate advance hearings
Engineering Index Backfile | 1913
The freight rate advance hearings
Engineering Index Backfile | 1913
Engineering Index Backfile | 1938
Engineering Index Backfile | 1938