Spiral staircase
    1.
    发明授权
    Spiral staircase 失效
    螺旋楼梯

    公开(公告)号:US6044599A

    公开(公告)日:2000-04-04

    申请号:US905555

    申请日:1997-08-04

    申请人: Walter Wachenfeld

    发明人: Walter Wachenfeld

    IPC分类号: E04F11/032 E04F11/116

    摘要: The circular staircase has individual steps made of stone, and in particular natural stone, mounted on a central newel. The steps each have a reinforcing member with one end that is joined to the newel and he other end that has a prestressing element against a step.

    摘要翻译: 圆形楼梯具有由石头,特别是天然石材制成的单独步骤,安装在中央的底板上。 这些台阶各具有一个加强件,一个加强件与一个接头连接在一起,而另一个端部则具有一个抵抗台阶的预应力元件。