发明名称 Adjustable guard rail structures
摘要 An adjustable guard rail assembly is provided for use with a running rail and is made up of a plurality of spaced base plates having one end extending beneath the running rail, brace means fixed to each base plate adjacent the other end, a guard rail supported on said spaced base plates and abutting said braces, fastening means extending through said brace and guard rail and interchangeable spacer means on said fastening means interchangeable from one side of the guard rail to the other whereby the position of said guard rail with respect to the brace may be changed.
申请公布号 US4265401(A) 申请公布日期 1981.05.05
申请号 US19790018885 申请日期 1979.03.09
申请人 L. B. FOSTER COMPANY 发明人 JACKSON, BERTIE
分类号 E01B5/18;(IPC1-7):E01B5/18 主分类号 E01B5/18
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