发明名称 Form-work for concrete
摘要 Concrete form-work includes: (a) an edge beam including an elongated edge plate having a front face and a rear face, a pair of web portions projecting outwardly from said rear face and a flange member joined to the free end of each web portion, each flange member including a plate portion extending outwardly of said web and substantially parallel to said edge plate and a lip portion extending inwardly of the web, (b) a pair of connector members each comprising a plate with a hole for receiving a stake, an off-set wedge-receiving flange at one edge of the plate and a connector flange at the opposite edge of the plate, said connector flange including a J-shaped hook portion for hooking around a said edge beam flange lip and an abutment face for engaging a stake and (c) a wedge member adapted to engage the off-set flanges of said connector member to hold the connector member and force the connector member abutment faces into tight engagement with a stake.
申请公布号 US4898358(A) 申请公布日期 1990.02.06
申请号 US19880277253 申请日期 1988.11.29
申请人 SPRONKEN, JOHN R. 发明人 SPRONKEN, JOHN R.
分类号 E01C19/50 主分类号 E01C19/50
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