Abstract: A consumable thermal torch for cutting through materials includes a first elongated generally cylindrical member adapted to receive an associated supply of oxygen into a first end and react with the oxygen at a second end. A second member has a hollow profiled similarly adapted to receive an associated supply of oxygen into a first end and react with the oxygen at a second end. The second member is received radially within the first member and is substantially axially coextensive therewith. At least one first gas flow passage is formed radially between the second member and the first member. At least one second gas flow passage is formed within the hollow profile of the second member and extends from the first end of the second member to the second end of the second member.

Abstract: An exothermic mini torch includes a torch holder assembly for holding a consumable thermal torch. The torch holder assembly includes a body defining a recess into which the consumable thermal torch is inserted. A passage is defined in the body having a first end fluidly connected to the gas source and a second end fluidly connected to the recess for delivering gas from the gas source to the consumable thermal torch. A filter is optionally disposed between the gas source and the consumable thermal torch adjacent the second end of the passage for filtering the gas and preventing backflow of the gas into the body. A seal is received in the recess and is optionally annularly disposed between an outer circumferential surface of the consumable thermal torch and a portion of the body forming the recess to direct the gas into the consumable thermal torch.

Abstract: A consumable thermal torch for cutting through materials includes a first elongated generally cylindrical member adapted to receive an associated supply of oxygen into a first end and react with the oxygen at a second end. A second member has a hollow profiled similarly adapted to receive an associated supply of oxygen into a first end and react with the oxygen at a second end. The second member is received radially within the first member and is substantially axially coextensive therewith. At least one first gas flow passage is formed radially between the second member and the first member. At least one second gas flow passage is formed within the hollow profile of the second member and extends from the first end of the second member to the second end of the second member.

Abstract: The invention relates to a method for forming a corrosion-resistant coating on a ferrous substrate comprising: mixing the coating components in the powdered form with water until all of the powder is in suspension; coating the selected exposed surfaces of the ferrous substrate with the suspension; drying the ferrous substrate coated with the suspension to remove substantially all of the water; heating the coated substrate to an appropriate temperature and maintaining the coated substrate at this temperature for an amount of time sufficient for the formation of an alloy coating at the substrate-coating interface; cooling the coated substrate; and further to the coating produced according to this method.

Abstract: An ignition device for igniting an associated fuel, such as charcoal briquettes or firewood, includes a base, an ignitor, a wick, and an ignition cream. The base is planar and is made of a combustible material such as cardboard. The ignitor has a generally conical configuration and is attached to a top surface of the base. The ignitor is a thermite type material which includes aluminum and iron oxide. The wick is attached to the top surface of the base and extends between the ignitor and an edge of the base. The ignition cream can be made of the same material as the wick, both being ignitable with a match or cigarette lighter.

Abstract: A thermally stable refractory coating for iron-based piping and a method of forming the same is provided. The refractory coating comprises from about 30 to about 35 weight percent sodium silicate; from about 31 to about 36 weight percent course silica, about 80 to about 200 mesh; from about 12 to about 16 weight percent fine silica, about 325 to about 400 mesh; from about 1 to about 6 weight percent hydrated aluminum silicate clay; from about 1 to 4 weight percent graphite; from about 0.8 to about 0.9 weight percent sodium aluminate; and, from about 3 to about 5 weight percent magnetite M.S-200.The invention also concerns a method of forming the above-described coating on iron-based piping.

Abstract: An ignition device for igniting an associated fuel, such as charcoal briquettes or firewood, includes a base, an ignitor, a wick, and an ignition cream. The base is planar and is made of a combustible material such as cardboard. The ignitor has a generally conical configuration and is attached to a top surface of the base. The ignitor is a thermite type material which includes aluminum and iron oxide. The wick is attached to the top surface of the base and extends between the ignitor and an edge of the base. The ignition cream can be made of the same material as the wick, both being ignitable with a match or cigarette lighter.

Abstract: A self-kindling fuel package comprises a combustible container having four planar side walls, a bottom wall, and a top wall. The container is constructed from a single planar element which is then folded to create the container. The container receives fuel, an ignitor, and a wick. Openings are provided in the walls of the container to aid in ventilation and drafting. A pull tab in the top wall of the container is selectively displaceable to aid in a "chimney" effect.

Abstract: An exothermic cutting torch includes a first cylindrical member receiving a second member therein. The second member includes radially extending portions formed by axially extending grooves. A first passage having plural passage portions is defined between the first and second members for conveying an oxidizing gas from a supply end to a combustion end of the cutting torch. Each of the radially extending portions defines a second passage portion also for conveying oxidizing gas to the combustion end. The second member engages an inner peripheral portion of the first member as a result of a stretch reducing operation to fuse the members together. A third passage may also be defined along the central axis of the torch if desired.

Abstract: A riser for a mold includes a riser body formed of an exothermic material. A cavity is located in the riser body and is adapted to contain an associated molten metal. An opening is provided in the riser body for communicating the riser body cavity with a cavity of an associated mold. The riser body exothermic material consists essentially of a reactive mixture which includes, in weight percent, from about 25% to 65% silica, from about 5% to 18% sodium nitrate, from about 1% to 8% sodium hexafluorosilicate, from about 15% to 40% aluminum, and from about 2% to 20% iron oxide.

Abstract: A self-kindling fuel package includes a readily combustible container having four side walls and a bottom wall. A charge of fuel is held in the container together with an igniting member for igniting the charge of fuel. The igniting member includes a wick, an ignition element to which the wick is secured and an ignition cream which is applied to a surface of the ignition element. The ignition cream is in contact with a portion of the wick for igniting the ignition element.

Abstract: A consumable thermal torch includes inner and outer casings having a first gas flow passage defined therebetween. At least one burning rod is received in the inner casing further defining second gas flow passages. Each of the inner and outer casings is a multi-layer wrapped construction facilitating ease of assembly. The wrapped casings are formed with a powder mix including an effective amount of an exothermic adjuvant. The preferred exothermic adjuvant is magnesium. The powder mix and wrapped casings are each welded or brazed to form integral structures. The magnesium content increases the exothermic reaction temperature of the thermal torch to at least 6000.degree. F.

Abstract: A process for reconditioning an ingot mold of the type including an elongated cavity area having some predetermined volume and at least one open end for purposes of extending the useful life thereof. In accordance with the reconditioning process, a short portion of the mold length is cut-off or machined away at a mold cavity open end to eliminate the usual mold damage which typically occurs at that area after a number of separate casts. The cut-off is effected so that the mold cavity will have some new volume comprising some predetermined reduction of the original volume. This second volume is calculated such that ingots then cast from the reconditioned mold and thereafter processed may be cut into a lesser number of bars having substantially the same size and volume characteristics as those bars cut from ingots cast in the original mold.

Abstract: A cover and cover assembly fabricated from steel plate for selectively covering an opening communicating with a coke oven and cooperable with seal rim sealing surface which surrounds the opening. The cover includes a knife-like sealing edge which engages the seal rim sealing surface to provide a primary seal therefor. An area on the cover peripheral surface is generally compatible with an area of the seal rim sealing surface for providing a secondary seal. In one instance, the knife-like sealing edge supports the cover in a manner such that compatible sealing rim and cover surfaces are slightly spaced apart from each other. Tar, pitch, residue and by-products of the coking operation which may by-pass the primary seal accummulate in this gap area at the start of a coking operation to complete the secondary seal.

Abstract: A thermally stable refractory article and method of forming the same is provided. The refractory article comprises a mixture of fine and coarse silica sands containing from trace amounts up to about 10 weight percent alumina and a binder therefor. Preferably the fine silica sand has a particle size ranging from about 0.06 to about 0.10 mm while the coarse silica sand has a particle size of up to about 3.0 mm. The binder is a silica-alumina clay. Preferably it contains in weight percent from about 55 to about 60 percent silica and from about 22 to about 40 percent alumina, plus incidental impurities.The invention also concerns the method of forming the above described refractory article and a monolithic lining therefrom.

Abstract: A thermally stable refractory article and method of forming the same is provided. The refractory article comprises a mixture of fine and coarse silica sands containing from trace amounts up to about 10 weight percent alumina and a binder therefor. Preferably the fine silica sand has a particle size ranging from about 0.06 to about 0.10 mm while the coarse silica sand has a particle size of up to about 3.0 mm. The binder is a silica-alumina clay. Preferably it contains in weight percent from about 55 to about 60 percent silica and from about 22 to about 40 percent alumina, plus incidental impurities.The invention also concerns the method of forming the above described refractory article and a monolithic lining therefrom.