Abstract: An apparatus for positioning and supporting a shroud tube in a metal teeming operation includes a boom assembly having one end pivotally mounted on a rigid structure for movement about a vertical axis and is articulated intermediate its ends to permit universal movement of its other end in a horizontal plane, and an elongated shroud tube support arm is mounted intermediate its ends on the universally movable end of the boom assembly for movement therewith, for limited pivotal movement about a horizontal axis, and for limited rotational movement about its longitudinal axis. A bifurcated yoke at one end of the support arm engages and supports a shroud tube, and power drive is provided at the other end of the support arm for rotating the support arm about its longitudinal axis.