Abstract: A shaped refractory body having an elongated passage for the feeding of molten metal. At least one conduit is provided extending from the exterior of said body into communication with the passage for the introduction of a gas thereto. The conduit is reduced in diameter at least at its inner end adjacent the passage to the size of a capillary.

Abstract: A device for forming a mortar joint between a closure member and the outlet spout for a vessel which is used for handling molten material; the closure element has a bore which is alignable with the spout of the vessel and a cylindrical sheath constructed from combustible material is disposed concentrically with the bore of the closure element with the mortar material disposed on the face of the closure element that is to be placed in contact with the surface area surrounding the spout of the vessel; cooperating guide means are provided on the vessel or on the closure member for properly aligning the cylindrical sheath with the spout of the vessel so that, when the closure member is placed in abutting relationship with the spout of the vessel, the mortar material will form a sealing joint packing between the face of the spout and the face of the closure member while the cylindrical sheath will prevent ingress of mortar material into the bore of the closure member.