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1.发明授权Magnetic pipeline inspection vehicle with metallic foil and bristle contacts supporting the vehicle 失效具有金属箔和刷毛触点的磁性管道检测车辆支持车辆
公开(公告)号：US4447777A
公开(公告)日：1984-05-08
申请号：US216499
申请日：1980-12-15
摘要： An improved magnet assembly for a magnetic pipeline inspection vehicle in which the assembly is rigidly secured on the body of the vehicle which is ferromagnetic and provides an annular magnetic return path between magnetic pole members formed of permanent magnets and flexible bristles or foils.
摘要翻译： 一种用于磁性管道检查车辆的改进的磁体组件，其中组件刚性地固定在车辆的车身上，该车身是铁磁性的并且在由永磁体和柔性刷毛或箔片形成的磁极部件之间提供环形磁性返回路径。
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公开(公告)号：US4388871A
公开(公告)日：1983-06-21
申请号：US286533
申请日：1981-07-24
申请人： John C. Braithwaite , Ian Smith
发明人： John C. Braithwaite , Ian Smith
CPC分类号： G01M3/005
摘要： A pipeline inspection system in which a vehicle, which has sensors to detect flaws in the pipeline, is moveable within the pipeline by a fluid flowing in the pipeline, and wherein a speed control for the vehicle is provided by a braking device which imposes a continuous axial drag on the pipeline wall. This continuous axial drag is adjustable between upper and lower limits such that the summation of the variable drag characteristics of the pipeline and the imposed drag remains approximately constant and the vehicle will move at a speed substantially equal to the average flow velocity of the fluid in the pipeline.
摘要翻译： 一种管道检查系统，其中具有用于检测管道中的缺陷的传感器的车辆通过在管道中流动的流体在管道内移动，并且其中车辆的速度控制由制动装置提供，该制动装置施加连续的 管道壁上的轴向阻力。 这种连续的轴向阻力在上限和下限之间是可调节的，使得管道的可变阻力特性和施加的阻力的总和保持近似恒定，并且车辆将以基本上等于流体的平均流速的速度移动 管道。
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公开(公告)号：US4240613A
公开(公告)日：1980-12-23
申请号：US26681
申请日：1979-04-03
申请人： John C. Braithwaite
发明人： John C. Braithwaite
摘要： A winch mechanism of the deep lift type comprises a variable displacement hydraulic pump/motor which is adjusted so as to support from a ship or the like via a rope haulage mechanism a submerged load under the influence of pressurized hydraulic fluid which is stored at a substantially constant pressure in a high pressure accumulator and in a low pressure accumulator. As the ship rises and falls, forces on the submerged load are sufficient to maintain the load substantially stationary with hydraulic fluid being passed via the pump/motor between the two accumulators. Lifting is accomplished by a pump which circulates hydraulic fluid through the pump/motor.
摘要翻译： 深升型的绞车机构包括一个可变排量的液压泵/马达，该可变排量液压泵/马达在加压液压油的影响下经由绳索运送机构从船舶等被支撑而被沉没的载荷被调节， 在高压蓄能器和低压蓄能器中的恒定压力。 当船舶上升和下降时，水下载荷上的力足以使液压油通过两个蓄能器之间的泵/马达传递来保持载荷基本上静止。 提升是通过使液压流体通过泵/马达循环的泵完成的。
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公开(公告)号：US4223871A
公开(公告)日：1980-09-23
申请号：US26675
申请日：1979-04-03
申请人： John C. Braithwaite
发明人： John C. Braithwaite
摘要： A winch mechanism of the surface compensating type for lifting objects from the surface of the sea comprises two or more variable pressure constant displacement hydraulic pump/motors coupled to drive a rope haulage mechanism; a pump connected for pumping operating fluid to the hydraulic pump/motors; a fluid accumulator branched from the high pressure fluid supply line from the pump to the pump/motors; and first and second non-return valves. The first non-return valve is in the high pressure fluid supply line between the fluid accumulator and the pump/motors to limit the flow of fluid from the accumulator to one only of the pump/motors, and the second non-return valve is between the high pressure fluid line and a low pressure fluid return line to permit the other pump/motor(s) to act as a pump.
摘要翻译： 用于从海洋表面提起物体的表面补偿型绞盘机构包括两个或多个可变压力恒定位移液压泵/马达，其连接以驱动绳索运送机构; 连接用于将工作流体泵送到液压泵/马达的泵; 从高压流体供应管线从泵分支到泵/马达的流体储存器; 以及第一和第二止回阀。 第一止回阀位于流体储存器和泵/马达之间的高压流体供应管线中，以限制来自蓄能器的流体仅流向泵/马达，而第二止回阀位于 高压流体管线和低压流体返回管线，以允许其它泵/马达用作泵。
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公开(公告)号：US4458601A
公开(公告)日：1984-07-10
申请号：US182658
申请日：1980-08-29
申请人： John C. Braithwaite , Ian Smith
发明人： John C. Braithwaite , Ian Smith
CPC分类号： G01M3/005
摘要： A pipeline inspection system in which a vehicle, which has sensors to detect flaws in the pipeline, is moveable within the pipeline by a fluid flowing in the pipeline, and wherein a speed control for the vehicle is provided by a braking device which imposes a continuous axial drag on the pipeline wall. This continuous axial drag is adjustable between upper and lower limits such that the summation of the variable drag characteristics of the pipeline and the imposed drag remains approximately constant and the vehicle will move at a speed substantially equal to the average flow velocity of the fluid in the pipeline.
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6.发明授权Magnet assemblies with plural metallic foil contact members for pipeline inspection vehicles 失效具有用于管道检查车辆的多个金属箔接触构件的磁体组件
公开(公告)号：US4310796A
公开(公告)日：1982-01-12
申请号：US080522
申请日：1979-10-01
CPC分类号： H01F7/0294 , H01F3/02
摘要： A magnetic coupling member for a magnet assembly of a pipeline inspection vehicle comprising one or more stacks of foils arranged as multi-layer laminations interleaved with short spacers and clamped together between clamping blocks by bolts. The assembly of clamped-together stack of foils is secured to the magnet of the vehicle magnet assembly by removable bolts which enable easy replacement of worn or damaged stacks of foils.
摘要翻译： 一种用于管道检查车辆的磁体组件的磁耦合构件，包括一个或多个堆叠的箔布置为多层叠片，其间隔有短间隔物并通过螺栓夹在夹紧块之间。 通过可拆卸的螺栓将夹紧在一起的箔片的组件固定到车辆磁体组件的磁体上，这可以容易地更换磨损或损坏的箔片堆叠。
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