Manhole casting setting fixture
    7.
    发明授权
    Manhole casting setting fixture 失效
    人孔铸造设备

    公开(公告)号:US5328294A

    公开(公告)日:1994-07-12

    申请号:US786456

    申请日:1991-11-01

    申请人: Rex Miller

    发明人: Rex Miller

    IPC分类号: E02D29/14 B22C9/24

    CPC分类号: E02D29/1445

    摘要: A manhole casting setting fixture includes a pair of spaced parallel frame rails connected by a plurality of transverse struts. Four loop handles are secured at opposite ends of the frame rails to facilitate manual manipulation and transportation of the fixture. A pair of clamp mounting blocks are positioned in juxtaposed relation centrally on bottom surfaces of the frame rails. A pair of lead screws extend through respective threaded coaxial bores in the mounting blocks and include handle portions to facilitate manual loosening and tightening of the lead screws. A pair of arcuate clamping jaws are rotatably mounted on oppositely directed end portions of the lead screws. In use, a manhole casting is positioned level with the bottom surfaces of the parallel frame rails and the clamping screws are manually adjusted to engage the arcuate clamping jaws with diametrically opposed interior side wall portions of the manhole casting, thereby clamping the casting into proper level alignment with respect to the parallel frame rails. The setting fixture and attached manhole casting are then carried to the manhole and properly positioned relative thereto. The setting fixture maintains the manhole casting in proper position until the casting is permanently set in position by the application of cement, asphalt or other roadway paving material.

    摘要翻译: 井孔铸造固定装置包括通过多个横向支柱连接的一对间隔开的平行框架轨道。 四个环手柄固定在框架轨道的两端,以方便手动操作和运输固定装置。 一对夹具安装块位于框架轨道底面的中心位置。 一对导螺杆延伸穿过安装块中相应的螺纹同轴孔,并包括手柄部分,以便于手动松动和拧紧导螺杆。 一对弓形夹爪可旋转地安装在导螺杆的相对定向的端部上。 在使用中,人孔铸件与平行框架轨道的底表面定位成平行,并且手动调节夹紧螺钉以与孔眼铸件的径向相对的内侧壁部分接合弓形夹爪,从而将铸件夹紧到适当水平 相对于平行框架轨道对准。 然后将固定夹具和附接的孔眼铸件运送到人孔并相对于其适当定位。 固定夹具将井眼铸造保持在适当的位置,直到铸件通过施加水泥,沥青或其他道路铺路材料永久固定就位。