Abstract: A method for distributing fluid along the interior wall of a pipeline wherein a quantity of fluid is placed at a location in the pipeline and exposed at one side to a force acting in an axial and rotational direction. This force will cause at least a portion of the fluid to enter a helical path adjacent the pipeline which will force the material to be coated on the inner wall of the pipeline. As the fluid is coated on the pipeline wall it is exposed to an axial wiping force which smooths out the fluid coated onto the inner wall of the pipeline by removing the excess material.

Abstract: Pressure converter for use between a hydraulic load sensing element and a gauge or other device to indicate a property of the load directly in desired units. The pressure converter comprises a first force-pressure transducer connected hydraulically to the sensing element, a second force-pressure transducer connected hydraulically to the gauge, and a pivotally mounted beam having first and second arms connected to the transducers for producing a pressure in the second transducer corresponding to the pressure from the sensing element and the relative lengths of the arms. In one embodiment, the beam pivots about an adjustable fulcrum member which can be moved axially of the beam to vary the lengths of the arms and provide the desired calibration. In a second embodiment, the pivot for the beam is provided by a flexure plate, and the lengths of the arms are adjusted by changing the distances between the load cells and the flexure plates.