. Railway and Locomotive Engineering. GLOBE . ANGLE I& CHECK VALVES BLOW-OUT VALVES GAUGE COCKS SPECIAL VALVES Thin durable metal plates onhead and seat of all valves. Whena plate becomes cut or worn it maybe easily discarded. No regrind-ing or

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19