| 摘要 |
<p>The slots of assemblage points (3) open into mutually parallel cylindrical chambers (6) and the engaging heads of the bars are shaped as thickenings (8) corresponding to the length of the chambers, and adapted to the cross-section of the chambers, and are arranged on flattened ends (1a, 2a) of the supporting bars (1, 2). The simple assembly so obtained makes it possible to construct a stable framework structure. The new set of building elements is useful for constructing temporary structures, for example for fairs and exhibitions.</p> |
