Air-ways sentence example

  • The adjustment of the air currents in the different splits is affected by regulators which are placed in the return air-ways, and act as throttle valves to determine the volume of air in each case.
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  • The straight roads are the air-ways for carrying pure air from the down-cast shaft to the working faces, while the return air passes along the faces and back to the up-cast by the curved road.
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  • These are made to shut air-tight against their frames, so as to prevent the air from taking a short cut back to the upcast, while preserving free access between the different districts without following the whole round of the air-ways.
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  • In large mines where the air-ways are numerous and complicated, it often happens that currents travelling in opposite directions are brought together at one point.
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  • The air-ways k, k, in the fixed vanes establish communication between the cores of the vortices and the atmosphere.
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  • The circulation of air in any given division of the mine is further controlled and its course determined by temporary or permanent partitions (" brattices "), by the erection of stoppings, or by the insertion of doors in the mine passages and by the use of special air-ways (see Coal).
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