| 摘要 |
783,184. Laminated structural members. STEBLER, P., [trading as STEBLER-SANES, METALLWARENFABRIK]. Oct. 6, 1954 [Oct. 6, 1953], No. 28736/54. Class 140. [Also in Groups X and XXII A method of producing structural elements comprising parallel tension plates 1, and intermediate supporting members 5, secured thereto and providing hollow spaces 2 between said plates is characterized in that between two such tension plates arranged parallel to each other is a supporting member having swellings or mammillations on each side, each such swelling or mammillation having a plane crest parallel to the median plane of the member and said crests being joined at 4, to the respective tension plate by means of self-hardening synthetic resin under a relatively low applied pressure. The supporting members and the tension plates may be made of different materials, e.g. sheet metal, impregnated paper or synthetic materials and they may be of latticed construction. The strength of the structure may be increased by welding prestressed wires between the tension plates and supporting members. The crests and the walls of the swellings can have round, square or triangular surfaces. |
