Origin of air blast
Examples from the Web for air blast
An air-blast is injected through the molten mass, and the impurities are burnt, or oxidised as it is chemically termed.Manures and the principles of manuring|Charles Morton Aikman
An air-blast to cool transformers at main or sub-stations may be provided in either of two ways.
If cooling with air-blast is adopted, a blower, with electric motor or some other source of power to operate it, must be provided.
This is prevented by the water-cooled damper S, which always closes the air-blast when the gas-pipe is open and vice versa.
It is customary to convey the air-blast through a pipe leading to the ash-pit, as in the Winterthur apparatus (Fig. 92).Gas-Engines and Producer-Gas Plants|R. E. Mathot