Abstract: The pad eye hole for the pin of a lifting bail, or clevis, has two different radii producing hole profiles that overlap to provide one larger hole. One radius is the same as the radius of the pin and arranged to wrap almost half of the pin circumference when it is thrust against the hole wall for lifting. An alternate form of the pin hole is egg shaped with the smaller radius equal to that of the pin but wrapping somewhat less of the pin circumference. The resulting hole will accept a somewhat misaligned pin but win closely engage the pin load bearing surface while lifting loads.

Abstract: A floor standing base supports a work holding manipulator table that is adapted to secure a vertical length of pipe for welding at a prepared juncture in the mounted pipe. The manipulator table is attached to the stand by a gimbal arrangement that allows it to tilt relative to a vertical axis a limited amount in all directions. Actuators also move the table a limited amount in all horizontal directions. The table movement actuators can be interlocked to produce a specific movement of the table and a table mounted workpiece. For certification work, requiring specific movement programs, recordings are provided to control the movement and movement relationships among the actuators. The recordings are, optionally, produced in the field by movement monitoring transducers attached to pipe being assembled in the actual representative environment. The record playback system controls all actuators and permits adjustment of the amplitude and rate of movement of the table for calibration and training purposes.