Roof truss spacer
    61.
    发明授权
    Roof truss spacer 失效
    屋顶桁架间隔

    公开(公告)号:US3959945A

    公开(公告)日:1976-06-01

    申请号:US576216

    申请日:1975-05-09

    申请人: David Allen

    发明人: David Allen

    IPC分类号: E04B7/02 E04C3/02 E04C3/11

    摘要: Method and apparatus for spacing prefabricated trusses and other structural members during erection thereof, which method and apparatus provides for the spacing of the members at a preselected distance from similar adjacent members or the like.

    摘要翻译: 用于在预制桁架和其他结构构件的竖立过程中间隔的方法和装置,该方法和装置提供了与类似相邻构件等预选距离的构件的间隔。