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    • 6. 发明授权
    • Concrete form having adjustable curvature
    • 具有可调节曲率的混凝土形式
    • US06012699A
    • 2000-01-11
    • US897904
    • 1997-07-21
    • Edward WuJames J. Johnson
    • Edward WuJames J. Johnson
    • E04G11/06E04G11/08
    • E04G11/062
    • A metal form has a flexible panel member with a perimetral flange projected laterally from one side thereof. Each of a pair of transversely opposite side sections of the flange is segmented by a plurality of longitudinally spaced V-shaped notches having their apices adjacent the one side of the panel member to provide for a lateral flexing movement of the panel member to a preselected shape. With the panel member in the predetermined shape, the segments in each of the flange side sections are connected together against relative movement to retain the predetermined shape of the panel member. In a preferred embodiment, each flange segment is connected to an adjacent flange segment by a flexible metal strap.
    • 金属形式具有柔性面板构件,其周边凸缘从其一侧侧向突出。 凸缘的一对横向相对的侧部中的每一个被多个纵向间隔开的V形凹口分段,该凹槽的顶点邻近面板构件的一侧以提供面板构件的横向弯曲运动至预选形状 。 在面板构件为预定形状的情况下,每个凸缘侧部分中的区段通过相对运动连接在一起,以保持面板构件的预定形状。 在优选实施例中,每个凸缘段通过柔性金属带连接到相邻的凸缘段。