. Official proceedings . LET P. T. L. INSPECT YOUR EQUIPMENT— P. T. L. Inspectors are thoroughly familiar with every detailof railway equipment—they know shop practices and theirservice will be highly satisfactory. Bulletins 20 and 21 Explain P. T. L. Service in Detail. PITTSBURGH TESTING LABORATORY Inspection Engineers and Chemists j GRAHAM BOLT & NUT CO. PITTSBURGH, PA. MANUFACTURERS OF Hot Pressed Nuts, Cold Punched C. & T. Nuts,Bolts, Rivets, Lag Screws, Washers, Etc. GEORGE J. HAGAN CO CHAMBER OF COMMERCE BUILDING,PITTSBURGH, PA. A Furnace and a Fuel for Every Railway Application COAL OIL
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. Official proceedings . LET P. T. L. INSPECT YOUR EQUIPMENT— P. T. L. Inspectors are thoroughly familiar with every detailof railway equipment—they know shop practices and theirservice will be highly satisfactory. Bulletins 20 and 21 Explain P. T. L. Service in Detail. PITTSBURGH TESTING LABORATORY Inspection Engineers and Chemists j GRAHAM BOLT & NUT CO. PITTSBURGH, PA. MANUFACTURERS OF Hot Pressed Nuts, Cold Punched C. & T. Nuts, Bolts, Rivets, Lag Screws, Washers, Etc. GEORGE J. HAGAN CO CHAMBER OF COMMERCE BUILDING, PITTSBURGH, PA. A Furnace and a Fuel for Every Railway Application COAL OIL GAS ELECTRIC. Lift out the glassesone at a time toclean. JOHNSON Babcock Water GaugeProtector The original Babcock Safety Protector, improvedto give liberal thiiee-vision opening and easy re-moval of glasses for cleaning. The only safe, yet absolutely accurate, watergauge protector ever designed. Has extra heavy cast bronze casing, double ob-servation glasses, each of one-quarter inch plateglass. Babocfck outlet for steam, hot water andbroken glass, if tube bursts, and new lightingfeature increasing efficiency 100%. In use by leading railroads everywhere. Write today for descriptive pamphlet and prices. Johnson Bronze Company, NEW CASTLE, PA. BRAKE BEAMS - Built-Up Types AND Brake Beam Supports