Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 15
nd the pipe connec-tions to the boiler. After thishas been done and valves 2and 3 have again been opened,attention should be turned tothe gauge glass itself. Thepet cock ( Xo. 4) should firstbe opened and steam andwater allowed to blow throughit freely for a short time.Then the top valve, Xo. 2,… … 1932.] THE LOCO M ori V E. 5 sage to the bottom <>f the gauge. l-\ closing valve 3 and opening valve 2the passage of steam only will indicate thai the top connection is dear.When this manipulation of the valves has been accomplished, the petcock is closed and the top and bottom gauge cocks…
Locomotives · Steam-boiler explosions
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