| 摘要 |
<p>A raised flooring system comprises a jack (10) of variable height support for floor panels (12) on a flange (36) around the top of the jack. The corner of the panel has a set screw (22) extending from hole (20) in its underside, which bears on the flange of the jack. The set screw can be vertically adjusted from the upper side of the panel, to vary the height of the corner of the panel and so level the floor.</p> |
