Pipe systems for hot media
    21.
    发明授权
    Pipe systems for hot media 失效
    用于热媒体的管道系统

    公开(公告)号:US3932922A

    公开(公告)日:1976-01-20

    申请号:US463184

    申请日:1974-04-22

    Applicant: Ove Thastrup

    Inventor: Ove Thastrup

    Abstract: A method of establishing pipe systems for hot media, such as subterranean district heating pipe systems, comprising arranging a number of pipe lengths in continuity of each other with a certain spacing between the adjacent ends thereof, and interconnecting these ends by means of relatively short, axially easily compressible conductor elements such as tube bellows, whereafter the pipe lengths are axially expanded by sending a hot medium through the pipe system thus assembled, until the single pipe lengths, at a temperature below the expected maximum operational temperature of the system, have expanded sufficiently to cause the adjacent pipe length ends to abut against each other, whereafter these pipe length ends, by welding, bolting or otherwise, are joined rigidly to each other. Hereby the pipes may be anchored rigidly to their surroundings and be subjected to temperature variations without the lack of thermal movability of the pipes causing unpermissible stress in the pipes.

    Abstract translation: 一种建立用于热介质的管道系统的方法,例如地下区域加热管道系统,包括以相对于其相邻端之间的一定间隔彼此连续布置多个管道长度,并且通过相对短的方式将这些端部互连, 轴向容易压缩的导体元件,例如管式波纹管,然后通过将热介质通过如此组装的管道系统发送热介质,从而使管道长度膨胀,直到在低于系统的预期最大工作温度的温度下的单个管道长度已经扩大 足以使相邻的管道长度端部彼此抵接,然后这些管道长度通过焊接,螺栓连接或其他方式结合,彼此刚性地连接。 因此,管道可以刚性地锚定到其周围并且经受温度变化,而不会导致管道的热移动性不足,导致管道中的不允许的应力。

    Linkage geometry for a slurry system
    22.
    发明授权
    Linkage geometry for a slurry system 失效
    链接几何制浆系统

    公开(公告)号:US3886965A

    公开(公告)日:1975-06-03

    申请号:US40494673

    申请日:1973-10-10

    CPC classification number: F16L3/015 F16L1/00 Y10T137/6903 Y10T137/6918

    Abstract: A system comprising a flexible tubular slurry hose supported by a plurality of spaced carts which are adapted to move over the surface of the earth or the floor of a mine is interconnected by a plurality of links which can be long and short lengths which are pivotally connected alternately together to the carts along the center line of the slurry hose. The linkages provide support for the hose and prevent strain on the hose during movement of the slurry system. The linkage is further defined so that its ideal geometry will permit bending of the hose as much as 180* without causing buckling or crimping of the hose.

    DOUBLE WIRE LIP HOOK
    27.
    发明公开

    公开(公告)号:US20230365381A1

    公开(公告)日:2023-11-16

    申请号:US18104733

    申请日:2023-02-01

    Inventor: Brian Jorgenson

    CPC classification number: B66C1/34 F16L1/00 H02G1/04

    Abstract: A double wire lip hook is provided. The double wire lip hook may be used for electrical power line work by helicopter or crane, in which closely spaced pairs of wires are used. The double wire lip hook may also be used for single wires and other lifting and pulling tasks. The example double wire lip hook has a geometry designed for high strength, maintaining a substantial cross-sectional area of metal or alloy throughout its profile. The double wire lip hook provides dual opposing hooks with wide throats cambered for wires. Dual tapers in a vertical shank member provide a large gape opening for each hook and keep loads on either side close to the vertical lifting axis for improved stability. Features such as one or more support ribs add to lifting strength and resistance to yield failure.

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