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28 条记录 (耗时 0.016 秒)

    Method and apparatus for wrapping a bevel pipe core
    1.
    发明授权
    Method and apparatus for wrapping a bevel pipe core 失效
    用于包装水管芯的方法和装置

    公开(公告)号：US3912181A

    公开(公告)日：1975-10-14

    申请号：US29462572

    申请日：1972-10-03

    申请人： PRICE BROTHERS CO

    发明人： MULLENDORE DAVID L

    IPC分类号： B28B21/62 ,  B65H81/00

    CPC分类号： B28B21/62 ,  B65H81/00

    摘要： Method and apparatus for automatically varying the spacing between adjacent wraps of prestressing wire in a concrete pipe core at the bevel end to accommodate the unequal length sides of the pipe core, in which the rotational position of the pipe core and the linear position of a wire feed carriage moving axially along the core are electronically monitored and signal generation proportional to both the rotational position of the pipe and the axial position of the carriage to control the oscillation of a wire guide mounted on the carriage as the carriage moves along the bevel end of the core.

    Pipe testing system
    5.
    发明授权
    Pipe testing system 失效
    管道测试系统

    公开(公告)号：US3877293A

    公开(公告)日：1975-04-15

    申请号：US31581672

    申请日：1972-12-18

    申请人： PRICE BROTHERS CO

    发明人： MCKEAGE ROY A

    IPC分类号： G01M3/28

    CPC分类号： G01M3/2846

    摘要： A pipe testing system which includes a pair of opposed adapter plates which are clamped to the opposite ends of a pipe section to seal the interior of the pipe, and a manifold which permits an operator to apply, selectively, either a vacuum to the pipe interior or pressurize it with either air or water. Indicating lights are provided to indicate pressure drops during testing and a timer records the interval for a change in pressure of a given magnitude. Additionally, the system is adjustable to accommodate pipes of different lengths and diameters. The system is specifically designed to test pipe on a high volume basis and in this regard a runway having a pipe centering section is utilized to feed pipes to the test station.

    摘要翻译： 管道测试系统，其包括一对相对的适配器板，其夹紧在管部分的相对端部以密封管的内部，以及歧管，其允许操作者选择性地向管内部施加真空 或用空气或水对其加压。 提供指示灯以指示测试期间的压降，并且定时器记录给定量值的压力变化的间隔。 此外，该系统是可调节的，以适应不同长度和直径的管道。 该系统专门设计用于大量测试管道，在这方面，使用具有管道定心部分的跑道将管道送入测试台。

    Core device for void forming and gasket support in a mold wall
    6.
    发明授权
    Core device for void forming and gasket support in a mold wall 失效
    用于在模具墙中形成和填充支撑的核心装置

    公开(公告)号：US3727876A

    公开(公告)日：1973-04-17

    申请号：US3727876D

    申请日：1971-11-22

    申请人： PRICE BROTHERS CO

    发明人： KEYSER L

    IPC分类号： B28B23/00 ,  B28B7/28

    CPC分类号： B28B23/0043 ,  Y10T29/4987

    摘要： Method and apparatus for forming a void through the wall of a pipe during the casting process and supporting a gasket for embedment in the pipe about the void. The apparatus is made in three pieces, including an outer, contoured mold member which engages the pipe form and supports the gasket by engaging one of the faces, a ring shaped sustaining plate which engages an inner edge of the gasket in an interference fit, and an inner mold member which is also contoured, and in conjunction with the outer mold member, defines the void through the wall of the pipe. The inner and outer mold members, which are relatively expensive, can be stripped from the freshly cast concrete pipe at the same time the pipe form is removed and reused in another casting operation, while the relatively inexpensive sustaining ring is retained in the freshly cast pipe to support the gasket and maintain it round until the concrete has cured to sufficient strength to allow the sustaining ring to be removed.

    摘要翻译： 用于在铸造过程中通过管壁形成空隙的方法和装置，并且支撑用于嵌入围绕空隙的管道中的垫圈。 该装置制成三件式，其中包括一个外形轮廓的模具构件，其与管形接合并且通过接合其中一个面来支撑该垫圈;一环形维持板，其以过盈配合的方式与垫圈的内边缘接合;以及 还具有轮廓的内部模具构件，并且与外部模具构件一起通过管壁形成空隙。 相对昂贵的内模和外模可以从新浇铸的混凝土管中剥离，同时将管形拆除并重新用于另一铸造操作，而相对便宜的维持环保持在新浇铸管中 以支撑垫圈并将其保持圆形，直到混凝土已经固化到足够的强度以允许保持环被移除。

    Jacking pipe
    9.
    发明授权
    Jacking pipe 失效
    胶管

    公开(公告)号：US3825037A

    公开(公告)日：1974-07-23

    申请号：US24114972

    申请日：1972-04-05

    申请人： PRICE BROTHERS CO

    发明人： KEYSER L

    IPC分类号： F16L9/08 ,  F16L25/00

    CPC分类号： F16L9/08 ,  F16L25/0027

    摘要： Reinforced concrete pipe especially adapted for jacking operations. To resist the shear forces generated in the bell and spigot sections of the pipe during jacking operations, radial reinforcing strands are embedded in the pipe about its entire circumference at both the bell of the pipe and the opposite end of the pipe adjacent the spigot shoulder.

    Pipe structure
    10.
    发明授权
    Pipe structure 失效
    管道结构

    公开(公告)号：US3820572A

    公开(公告)日：1974-06-28

    申请号：US21930172

    申请日：1972-01-20

    申请人： PRICE BROTHERS CO

    发明人： KEYSER L

    IPC分类号： F16L1/028 ,  F16L3/00 ,  F16L9/08

    CPC分类号： F16L1/028 ,  F16L3/00 ,  F16L9/08

    摘要： An underground pipe structure which includes an anchor for resisting longitudinal movement of the pipe line in response, principally, to thrust forces generated by hydrostatic pressure at elbows, reducers, valves and bulkheads.