Abstract: The cutting tip of a conventional oxy-fuel cutting and welding torch is replaced by the adaptor of the invention to convert the torch for using exothermic cutting rods or electrodes for erothermic cutting.

Abstract: A process and apparatus for cutting and gouging a workpiece wherein solely a vacuum is used as the operative molten metal removal force. Isolating the atmosphere surrounding the arc as it melts the workpiece while evacuating the atmosphere as the melting proceeds thus facilitating a better cut or gouge with lower process generated noise and removal of process generated fume.

Abstract: A steam generator and method for operating same in which a plurality of beds of combustible particulate material are established and air is introduced to each of the beds for fluidizing the beds. The flue gases and entrained fine particulate material from each bed are combined and the particulate material then separated from the flue gases externally of the beds and introduced back into one of the beds. Independent fluid circuits are established including some in heat exchange relation to the separate beds, for independently controlling the steam generation rate and the temperatures of the reheat steam, and the superheat steam.

Abstract: A self-contained portable exothermic cutting system including an electrode holder, current source, arc initiator and source of oxygen.

Abstract: An exothermic cutting electrode or burning bar provided with a coating containing oxidizing material, arc stabilizing material and a binder with portions of reduced coating thickness along the length of the electrode.

Abstract: An electrode for use in cutting or gouging workpieces underwater by means of an electric arc comprising a generally elongated porous substrate, with a circumferential recess proximate one end to form a snap-off end on the substrate. The substrate is covered with a combined electrical insulating and waterproof coating except for a portion of the end opposite the recess which is inserted into a suitable underwater torch. When the electrode is submerged it has complete waterproof integrity until the snap-off end is removed to allow the substrate to be brought in contact with the workpiece so that an arc may be struck and maintained between the substrate and the workpiece to achieve cutting or gouging.

Abstract: An exothermic cutting electrode or burning bar having an oxidizable metal fluid conduit (tube) surrounded by a mass of metal similar to that of the fluid tube, the entire structure covered with an outer oxidizable metallic tube and/or an electrically insulating water impervious cover, either end of the electrode being adapted for connection to a source of oxidizing fluid and electric current, so that, an arc can be struck between a workpiece and the free end of the electrode to produce a cutting flame. By proper selection of the type and mass of the materials of construction the electrode will burn after the electric current has been turned off.

Abstract: An exothermic cutting electrode or burning bar having an oxidizable metal fluid conduit (tube) surrounded by a mass of metal similar to that of the fluid tube, the entire structure covered with an outer oxidizable metallic tube and/or an electrically insulating water impervious cover, either end of the electrode being adapted for connection to a source of oxidizing fluid and electric current, so that, an arc can be struck between a workpiece and the free end of the electrode to produce a cutting flame. By proper selection of the type and mass of the materials of construction the electrode will burn after the electric current has been turned off.