Measuring and recording apparatus using fluid as the measuring media for use in the manufacture of hydraulic power steering valves

摘要: An apparatus for measuring and recording the angular position of edges axially extending grooves disposed on an inside cylindrical bore surface or outside a workpiece is characterized in that includes shoe, pressed into intimate contact with over zone shoe. The incorporates orifice, away from to plenum chamber, which fluid supplied. Relative rotation between shoe produced. A device measures degree restriction flow orifice as traverse during relative rotation. positional measurement rotation, such positions are recorded at each rotational corresponding predetermined successive orifice.