| 摘要 |
1,130,119. Crash barriers. R. M. BIGNI. 26 July, 1967 [20 Aug., 1966], No. 34261/67. Heading E1G. A vehicle crash barrier comprises a displaceable chain of reinforced concrete beams, 1, 2 hinged together by concrete supports G which rest on the ground, the barrier being provided at intervals with a ground-embedded concrete post F replacing a support G. As shown two rows of beams are vertically spaced by concrete rings 9. |
