At the vast Singer factory at Clydebank in Scotland, chain
grate stokers feed a moving belt of heat under the 4 giant boilers in the impressive powerhouse. The fuel is coal—chosen by the directors for reasons of convenience, economy and reliability. The choice is a wise one, for coal, mechanically stoked, is smokeless, and produces more heat for the money than any other fuel. Furthermore, the coalfields of Britain can supply all the fuel our industries will need for scores of years to come.
Whether your own industry is small or big—remember Singer. Coal sewed up their fuel problems : the pattern is one you could copy with profit.
Here are some key facts and figures about the consumption of coal at Singer :
Number of boilers • 4 water tube Method of firing: Chain grate stokers Steam pressure : 36o lbs. per square inch Steam pressure : 36o lbs. per square inch Continuous maximum pressure: 6o,000 lbs. of steam per hour each
Steam temperature: 725°F.
Feed temperature • 185°F.
Annual fuel consumption: 48,00o tons of coal
Progressive industry is going forward on
COAL
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