Abstract: An adjustable pipe center; the lathe-center may be useful for supporting the end of a rotating workpiece having a hollow along an axis upon which the workpiece is rotating. The adjustable pipe center includes a shaft, a center-head having keyways, a plurality of bearing-fins, and a plurality of power-screws. The center-head is fixed to the shaft and is able to fit within the hollow of the workpiece. The plurality of bearing-fins is able to fit and slide within the keyways, with each having a bearing-surface for contacting the workpiece. The bearing-surface is disposed at an angle to the shaft-axis between zero and ninety degrees. The bearing-fins may be translated, functioning as an inclined plane to displace a workpiece resting against it. When the bearing-fins are collectively translated as desired, it may laterally adjust the position of the workpiece-axis relative to the shaft-axis.

Abstract: An adjustable pipe center; the lathe-center may be useful for supporting the end of a rotating workpiece having a hollow along an axis upon which the workpiece is rotating. The adjustable pipe center includes a shaft, a center-head having keyways, a plurality of bearing-fins, and a plurality of power-screws. The center-head is fixed to the shaft and is able to fit within the hollow of the workpiece. The plurality of bearing-fins is able to fit and slide within the keyways, with each having a bearing-surface for contacting the workpiece. The bearing-surface is disposed at an angle to the shaft-axis between zero and ninety degrees. The bearing-fins may be translated, functioning as an inclined plane to displace a workpiece resting against it. When the bearing-fins are collectively translated as desired, it may laterally adjust the position of the workpiece-axis relative to the shaft-axis.