| 摘要 |
<p>The device is for providing input air to buildings, and comprises a tube attached to an air box which is placed against a radiator. The air is forced to pass through a labyrinth in the box prior to being impelled out of the box. In use, the air is made to sweep against the side of the radiator where it is heated. The air flow aperture is arranged so that the air does not enter the building at a point which is continuously occupied.</p> |
