SHROUD TUBE SUPPORT AND CHANGING DEVICE

摘要

An improved shroud tube supporting and changing apparatus for use in a bottom pour metal teeming operation includes an elongated arm having its midpoint mounted on the teeming vessel for free rotation about a generally vertical axis and for limited pivotal movement about a horizontal axis, and a shroud tube support on each end of the elongated arm for engaging and providing gimbal-like support for a shroud tube. A power actuator mounted on the teeming vessel is selectively operable to pivot the arm about the horizontal axis in one direction to maintain a fluid tight seal between the shroud tube and the bottom pour opening in the teeming vessel, and to permit the arm to be pivoted in the other direction to disengage the shroud tube from the bottom pour opening and permit the arm to be rotated about the vertical axis to place a new shroud tube in position beneath the bottom pour opening.