Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . The Dim The Dcrry-Collard Figure 254 TFigure 255 Boiler fittings—stop and check Boiler fittings. pull on the end which is so frequent with unbalancedvalves. Nearly all boilers are now fitted up with safety plugsin the crown sheet. They are made of composition whichmelts at a temperature somewhere around 500 degreesFahrenheit. An outside type of one of these plugs is

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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912