| 摘要 |
784,366. Floors; girders. SIMON, V. Oct. 10, 1955 [bct. 13, 1954; Nov. 23, 1954], No. 28745/55. Class 20(4) In a floor comprising prefabricated concrete girders, prefabricated floor blocks 5 supported by the girders, and a filling or decking 6 of concrete poured in situ over the girders and blocks, the girders comprise relatively flat concrete blocks 3 in which are embedded the lower portions of two longitudinal sheet-iron members 1 disposed in two parallel vertical planes with the lower edges of the members turned horizontally and outwardly. As shown, the upper portions of the members 1 which project above the blocks 3 are curved outwardly.
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