| 摘要 |
1,223,802. Expansion joints. GUTEHOFFNUNGSHUTTE STERKRADE A.G. 1 May, 1969 [4 May, 1968], No. 22362/69. Heading E1B. A rubber or plastics plate 1 interconnecting a bridge 3 and a carriageway 2 and closing the gap 4 therebetween has alternating recesses 8 in opposite surfaces and embedded metal reinforcement 7, 11 a, 11 b. The members (11)b carry projections 12 which are alternately attached to projections 15 projecting from the bridge and carriageway by bolts 13 passing through elongated holes 14. |
