N.Y. triple valves aamp; brake valves; N.Y. air-brake troubles; Train operation; N.Y. foundation brake gear; N.Y. air signal aamp; high-speed ... When steam valve 25 is wide open, the upper side forms a steam-tight joint at s with the steam-valve guide 6.
|Title||:||N.Y. air-brake pumps|
|Author||:||International Correspondence Schools|