Storage rack entry vehicle
    22.
    发明授权
    Storage rack entry vehicle 失效
    储物架进入车

    公开(公告)号:US4273494A

    公开(公告)日:1981-06-16

    申请号:US946152

    申请日:1978-09-27

    CPC classification number: B65G1/0414

    Abstract: A storage rack entry vehicle for transporting loads of substantial weight in a warehousing system includes a plurality of wheels spaced from each other in the direction of both the length and the width of the vehicle and which support the vehicle for movement upon rails. The vehicle also includes an elevatable platform which supports the loads on the vehicle and distributes the load weight to locations adjacent each of the wheels. A rigid plate connects both the wheels and the load supports. However, this rigid plate is sufficiently flexible such that the plate flexes to maintain all of the wheels in continuous contact with the rails where one of the rails may vary in elevation such that at least one of the wheels might otherwise move out of contact with the rail surface.

    Abstract translation: 一种用于在仓库系统中传送相当重量的负载的储物架入口车辆包括在车辆的长度和宽度方向上彼此间隔开的并且支撑车辆在轨道上运动的多个车轮。 该车辆还包括可升降平台,其支撑车辆上的负载并且将负载重量分配到与每个车轮相邻的位置。 刚性板连接车轮和负载支架。 然而,这种刚性板是足够柔性的,使得板弯曲以保持所有的轮子与轨道连续接触,其中一个轨道的高度可能在高度上变化,使得至少一个车轮可能会移动离开与 轨道面。

    Anchoring bolt and method
    23.
    发明授权
    Anchoring bolt and method 失效
    锚固螺栓和方法

    公开(公告)号:US4098087A

    公开(公告)日:1978-07-04

    申请号:US746983

    申请日:1976-12-02

    Applicant: James C. Swain

    Inventor: James C. Swain

    CPC classification number: E02D5/76 E21D21/004 Y10T408/895

    Abstract: A method of, and bolt for, supporting a structure such as a mine or tunnel roof or side wall or the like. The method typically comprises providing an elongate annular anchoring bolt defining a central longitudinal passage therethrough and having cutting edges in an inwardly extending region at its leading end and in outwardly protruding areas at spaced positions along and around its outer surface for cutting into the structure to be supported, and openings in the bolt adjacent to at least some of the cutting edges for permitting material that is cut away from the structure to proceed into the central passage and out through its trailing end, the outer diameter of the bolt being smaller at its leading end and progressively larger along its length to the trailing end, pressing the leading end of the bolt against a surface of the structure to be supported, applying axial and rotational forces against the bolt to drive its cutting edges against and into the structure along approximately parallel helical paths and to penetrate into the hole formed by the cutting until only a short minor portion of the bolt remains outside of the structure, and then applying a final axial force against the bolt sufficient to upset inwardly a portion of the bolt at its leading end and to drive the remaining portion of the bolt at the trailing end into the hole.

    Abstract translation: 用于支撑诸如矿山或隧道屋顶或侧壁等的结构的方法和螺栓。 该方法通常包括提供细长的环形锚定螺栓,其限定穿过其的中心纵向通道,并且在其前端处具有向内延伸的区域中的切割边缘,并且在其外表面沿着和围绕其外表面的间隔位置处的向外突出的区域中,以切割成该结构 支撑的螺栓和与至少一些切削刃相邻的螺栓中的开口,用于允许从结构切除的材料进入中心通道并穿过其后端,螺栓的外径在其前端较小 端部并沿其长度逐渐变大到后端,将螺栓的前端压靠在要被支撑的结构的表面上,将轴向和旋转力施加到螺栓上,以将其切削刃沿大致平行的方式驱动其进入结构 螺旋形路径,并且穿透到通过切割形成的孔中,直到只有较小的小部分 的螺栓保持在结构外部,然后施加最大的轴向力以抵抗螺栓足以在其前端向内压缩螺栓的一部分并且将后端的螺栓的剩余部分驱动到孔中。

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