| 摘要 |
In a compressed air conveyor of the type which comprises a supply of compressed air 2, a track comprising a plurality of air passage 3,4,5 each air passage being connected to the supply of compressed air 2, and configured to provide a jet of air with a substantial component of motion in the direction of the track and guide means for suspending the article so that in use the article is propelled by the air jets along the track while suspended by the guide means, the guide means comprising guide parts 6 and 7, means are provided for altering the distance between the guide part 6 and 7 in curved sections, Each guide part 6, 7 comprises at least two guide sections 10 and 11 and 12 and 13 which can be moved radially towards or away from one another. At least one movable section 18,19 is provided for insertion between the guide sections 10 and 11 and 12 and 13. This can be done automatically, so that the circumferential length of the guide part can be altered automatically when the respective guide part is moved towards or away from the other guide part.
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