发明名称 |
CONCRETE SLAB STRUCTURE FOR RAILWAY TRACK |
摘要 |
A concrete slab structure for supporting railway track is itself resiliently supported on a base structure by a spring system comprising tubes secured against longitudinal movement in holes extending through the slab from its top surface to its bottom surface, springs each arranged in a respective one of the tubes and an adjustable spring abutment at the upper end of each of the tubes for pre-loading the springs against the base structure. |
申请公布号 |
AU4533579(A) |
申请公布日期 |
1979.10.04 |
申请号 |
AU19790045335 |
申请日期 |
1979.03.22 |
申请人 |
BRITISH RAILWAYS BOARD |
发明人 |
JOHN CHARLES LUCAS;WILLIAM KEITH AITKEN |
分类号 |
E01B1/00;E01B3/38;E04H9/02 |
主分类号 |
E01B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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