CHAP. IX.
CONSTITUENTS OF COAL.—PROCESS OF COMBUSTION.—HEAT EVOLVED IN IT.—FORM AND STRUCTURE OF BOILER.—WAGGON BOILER.—FURNACE.—METHOD OF FEEDING IT.—COMBUSTION OF GAS IN FLUES.—CONSTRUCTION OF GRATE AND ASH-PIT.—MAGNITUDE OF HEATING SURFACE OF BOILER.—STEAM-SPACE AND WATER-SPACE IN BOILER.—POSITION OF FLUES.—METHOD OF FEEDING BOILER.—LEVEL GAUGES.—SELF-REGULATING FEEDERS.—STEAM-GAUGE.—BAROMETER-GAUGE.— INDICATOR.—COUNTER.—SAFETY-VALVE.—FUSIBLE PLUGS.—SELF-REGULATING DAMPER.—SELF-REGULATING FURNACE.—POWER AND DUTY OF ENGINES.—HORSE-POWER OF STEAM ENGINES.—EVAPORATION PROPORTIONAL TO HORSE-POWER.—SOURCES OF LOSS OF POWER.—ABSENCE OF GOOD PRACTICAL RULES FOR POWER.—COMMON RULES FOLLOWED BY ENGINE MAKERS.—DUTY DISTINGUISHED FROM POWER.—DUTY OF BOILERS.—PROPORTION OF STROKE TO DIAMETER OF CYLINDER.—DUTY OF ENGINES.—CORNISH SYSTEM OF INSPECTION.—ITS GOOD EFFECTS.—HISTORICAL DETAIL OF THE DUTY OF CORNISH ENGINES.
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- FOOTNOTES:
