Twentieth century hand-book for steam engineers and electricians, with questions and answers .. . er in hisboilers. This he can do by opening the valve in thedrain pipe of the water column, allowing it to blowout freely for a few seconds, then close it tight andallow the water to settle back in the glass. Thisshould be done with each boiler under steam, not onlyonce, but several times during the day. No engineershould be satisfied with a general squint along the lineof gauge glasses, but he should either go himself orelse instruct his fireman or water tender to make therounds of each boiler an
Twentieth century hand-book for steam engineers and electricians, with questions and answers .. . er in hisboilers. This he can do by opening the valve in thedrain pipe of the water column, allowing it to blowout freely for a few seconds, then close it tight andallow the water to settle back in the glass. Thisshould be done with each boiler under steam, not onlyonce, but several times during the day. No engineershould be satisfied with a general squint along the lineof gauge glasses, but he should either go himself orelse instruct his fireman or water tender to make therounds of each boiler and be sure that the water is allright. 60 BOILER OPERATION 67 The next thing to be looked after is the fire. If theplant is run continuously clay and night it is the dutyof the firemen coming off watch to have the fires clean,the ash pits all cleaned out, a good supply of coal onthe floor, and everything in good order for the oncoming force. A good fireman will take pride inalways leaving things in neat shape for the man whois to relieve him. Cleaning Fires. With some varieties of coal this is. lahmans grate. a comparatively easy task, especially if the boilers arefitted with shaking grates. With a coal that does notform a clinker on the grate bars, the fires can be keptin good condition by cleaning them twice or threetimes in twenty-four hours, as the larger part of theloose ashes and noncombustible can be gotten rid ofby shaking the grates and using the slice bar at inter-vals more or less frequent; but such coals are generallyconsidered too expensive to use in the ordinary manu-facturing plant, and cheaper grades are substituted. 68 ENGINEERING Fire Tools. For cleaning fires successfully andquickly the following tools should be provided: a slicebar, a fire hook, a heavy iron or steel hoe, and a lighthoe for cleaning the ash-pit. It is unnecessary todescribe these tools, as they are familiar to allengineers. A suggestion as to the kind of handleswith which they should be fitte
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