| 摘要 |
<p>In concreting use is made of form panels with grooves along an edge, and interlocking connecting rails. There are two or more such panels (1, 2), with at least two parallel grooves (3, 4) along one edge, and at least one rail (5) with profile pieces (5, 6) fitting each groove. The rail is fitted with assemblies (7-10) pressing the panels together as soon as its profile pieces are inserted in the grooves. These pref. comprise a bar (7) with a pressure-foot end (7'), and a curved disc (9) turned by a handle (10).</p> |
