Abstract: A heating device includes a housing, a primary induction coil, a controller circuit, and a secondary induction coil. The housing is configured to retain a camera lens. The primary induction coil is positioned proximate the housing and configured to generate a magnetic field in response to receiving electrical power from a power supply. The controller circuit is in electrical contact with the primary induction coil and is configured to control the electrical power delivered to the primary induction coil. The secondary induction coil overlays the primary induction coil and is configured to receive the magnetic field from the primary induction coil and generate heat. The secondary induction coil heats the camera lens when the primary induction coil receives the electrical power.

Abstract: A heating device includes a housing, a primary induction coil, a controller circuit, and a secondary induction coil. The housing retains a camera lens. The primary induction coil is positioned proximate the housing and generates a magnetic field in response to receiving electrical power from a power supply. The controller circuit is in electrical contact with the primary induction coil and controls the electrical power delivered to the primary induction coil. The secondary induction coil overlays the primary induction coil and receives the magnetic field from the primary induction coil and generates heat. The secondary induction coil is in direct contact with a windshield of a vehicle and heats the viewing window when the primary induction coil receives the electrical power.

Abstract: A plant which produces a metal band having a protective coating includes a series of treatment sections positioned one after another in a continuous line. The plant includes two coating sections, respectively, a galvanization section and a painting section, in which the metal band follows a running path having at least a vertical portion with a cooling or drying mechanism. The plant is positionable within a single building having a central tower with two abutting sections in which the coating section is provided and two halls in which are installed, respectively, a supply section and an exit section, each with horizontal accumulators.

Abstract: The present invention provides an apparatus for hardening a metal article, comprising a holding device, an energy beam generator pointed at the holding device for directing energy beams at the holding device, and a movement system supporting the holding device, wherein the movement system varies the orientation of the metal article relative to the energy beam generator. The apparatus includes an energy beam delivery instrument system positioned between the energy beam generator and the holding device so that the energy an energy beam delivery instrument directs the energy beam to the holding device. Also, the apparatus includes an auxiliary heating device engaging the holding device, wherein the auxiliary heating device heats the metal article independently from the energy beam.

Abstract: A shallow vessel (50,52) for being horizontally disposed when containing a molten metal or metal alloy (66) for meniscus coating one side of a clean metal strip (34A) when the strip is moved vertically past one side of the vessel. The vessel includes a shell (68) such as austenitic stainless steel, a refractory lining (70), a molten metal departure lip (72) mounted on the upper surface of the side of the vessel, a spirally shaped induction coil (64) for maintaining the molten metal above its melting point and a flux concentrator (74). The induction coil is positioned below the refractory lining and the flux concentrator is positioned below the induction coil. The induction coil and the flux concentrator underlie the area occupied by the molten metal.

Abstract: A continuous hot dip galvanizing line for coating steel strip includes a continuous annealing furnace for annealing the strip before discharging the strip directly into the molten coating metal and a broad based bridle is located in the final cooling zone of the furnace. The broad based bridle includes at least two spaced bridle rolls each of which is independently driven and controlled to produce a more uniform tensile load in the strip and improve strip stability and coating quality in the final product.

Abstract: A continuous dip-plating apparatus for a steel strip has a pot containing a metal melt which forms a plating bath, a device for causing the steel strip to run through the plating bath such that the steel strip makes a turn around a sink roll in the plating bath so as to be pulled upwardly above the surface of the plating bath, and a wiping device disposed above the pot and adapted for adjusting the amount of deposition of the metal melt to the steel strip. The apparatus further has a pair of flow regulating plates for suppressing deposition of dross to the steel strip. The flow regulating plates are arranged in parallel with and in the vicinity of the portion of the steel strip running upwardly through the plating bath with the upper ends of the flow regulating plates being disposed substantially at the same level as the plating bath.

Abstract: A method for heating a metallic strand 16 such as a wire or strip comprises passing the strand 16 along a metallic tube 4 which is filled with molten metal 13, the tube wall being heated by a furnace chamber 3 through which the tube 4 extends.

Abstract: A method and apparatus for improved settling and handling of sludge in a fused salt bath for treating materials is provided. The apparatus includes a tank divided into a work zone and a salt processing zone, with the salt processing zone having a salt recovery section and a salt heating section. A pumping device is provided which together with adjustable gate means, generate a relatively quiescent flow in the work zone allowing sludge to settle, and a relatively turbulent flow in the salt processing zone and especially the salt heating section, to keep the sludge in suspension.

Abstract: This invention relates to a continuously treating line for a steel band, having a heating furnace by directly flaming. For heating the steel band with causing reduction, the heating furnace of directly flaming system is provided with a plurality of heating burners of reduction system which may form non-equilibrium range of the air and the fuel in a flame, that is, a reduction range, wherein the heating burners are positioned at predetermined arrangement with respect to the steel band and at a certain pitch predetermined in relation with an inner diameter of the burner in a line running direction.The treating line has said heating furnace constructed as mentioned above and a subsequent atmosphere furnace, and said atmosphere furnace may be provided with a sealing chamber having various means for avoiding invasion of the outer air.

Abstract: A system for the treatment of continuous metal webs facilitates both continuous annealing and hot-dip coating operations interchanging from annealing to a combined annealing and coating, and vice-versa. The system has an annealing station common to both operations as well as web feed and discharge sections and web entry storage and web discharge storage stations associated therewith.

Abstract: A method and apparatus for heat treating and especially annealing of elongate metallic materials such as wire wherein the wire (24) given a longer length exposure to complete the heat treatment of the wire at higher line speeds. This is accomplished either by adding a heated storage chamber (41) holding a great length of wire (24) in sequence with conventional or modified annealing apparatus, or by substitution of a special apparatus (100) for the existing conventional annealing apparatus.

Abstract: A continuous, high speed method of galvanizing and annealing a continuously travelling low carbon ferrous wire to provide a highly corrosion resistant, more ductile wire having a bright silvery luster comprising, (a) passing a continuously travelling low carbon steel wire after it has been cleaned through a zinc electroplating bath to deposit a zinc coating on the wire, (b) passing the resulting coated wire through a bath of molten aluminum-zinc eutectic alloy maintained at a temperature of about 734.degree. F. to about 786.degree. F. and comprising a major portion of zinc and sufficient aluminum to provide an aluminum-zinc alloy having a melting point less than that of zinc, to provide a coated ferrous wire, (c) drawing down the coated continuously travelling ferrous wire to a lesser cross-sectional area, (d) process annealing the drawn continuously travelling ferrous wire at a temperature up to about 1400.degree. F.

Abstract: Multi-purpose in-line direct heat treating equipment for hot-rolled steel wire rod has, in combination, a front stage transport conveyor portion and a holding furnace both positioned on a front traveling skid carriage, a quenching tank and a holding tank both positioned on a rear traveling skid carriage, each of the traveling skid carriages being able to travel in direction transverse to the direction of conveying of the hot-rolled steel wire rod emerging from a hot rolling mill for the purpose of direct heat treating the wire rod by taking advantage of the heat retained in the wire rod.

Abstract: A method and apparatus is disclosed for prevention of clogging of exhaust systems, especially the exhaust hoods and ducts above fused salt baths onto which salts splatter as they are being added by spraying from aqueous solutions. A fluid tight jacket surrounds a portion of the exhaust pipe and hood and a cooling fluid, preferably the aqueous solution of the salt being added is flowed through the jacket. This will condense the water of the solvent onto the inside of the hood and duct dissolving and washing away any splattered salt.

Abstract: An apparatus for the continuous heat treatment of elongated metal objects, especially wire, by contacting the same with molten metal, usually lead, whereby a preheating tray containing the molten metal is followed by a quenching tray with a second bath through which the metal is passed in succession. The preheating tray containing the first metal bath is electrically insulated and partly immersed in the quenching bath while electric current is applied across the baths to resistively heat the metal between them.

Abstract: Equipment for patenting steel wires, comprising preheating and patenting tanks for processing the wires along substantially horizontal and straight-line paths, an electrical potential being applied to end plates in at least some tank sections, the plates having notches at points of intersection with the wire paths, the wires being passed under respective levels of the baths in the tanks; through the notches, the paths being beneath upper edges of the end plates but above lowest points of the notches, the levels of the baths being kept above planes defined by the wire paths. Among optional features, pull is imparted to sections of the wires that exit from the patenting tank at a higher speed than to sections entering the preheating tank, thereby to reduce the cross-sections of the resulting steel wires without the application of dies and the like.

Abstract: A strip is continuously passed through a molten salt bath in a main tank having a central longitudinal baffle providing passageways at each end thereof. A sink guide roll is provided for the strip at the exit half of the tank. A heating tank is located along one longitudinal side of the main tank at the entry end thereof and has front and rear connecting openings with the main tank. An agitator is positioned at the front end of the heating tank. A forward tank section located along the other side of the tank has a bottom opening connecting therewith. An intermediate tank section has upper and lower compartments, the upper compartment serving as a sludge settling basin. A rear tank section has an agitator therein and is connected to the forward tank section through the lower compartment. Small openings adjacent the top of the upper compartment open into the main tank and to the rear tank section.

Abstract: Strip is cleaned by passing it through a molten salt bath in a rectangular tank having U-shaped heating tubes arranged horizontally along each longitudinal side of the tank. Agitators positioned within L-shaped ducts at diagonally opposite corners of the tank cause movement of the bath past the heating tubes, thus heating the bath uniformly and keeping it in motion to prevent sludge from settling out. A second tank arranged along one side of the main tank has two spaced apart openings into the main tank and an agitator which causes movement of molten salt therethrough. The second tank also has a settling chamber therein through which molten salt passes slowly so as to cause sludge to settle out.

Abstract: A hot steel rod which issues from the last pass of a rod mill is coiled at a level above a bath of molten salt and successive coils are caused to descend in the bath toward a platform on which they accumulate to form a bundle. The coils are out of contact with each other during the initial stage of movement toward the platform for a period of time which is long enough to insure that their material undergoes desirable structural changes. The temperature of the bath is maintained within a predetermined range by an adjustable induction heater which surrounds the vessel for the bath and by circulating a stream of molten salt through one or more heat exchangers located outside of the vessel. The stream is withdrawn close to the bottom zone and is returned into the upper zone of the bath. Alternatively, the vessel may contain a mammoth pump which is operated by water and steam.

Abstract: Method of and plant for patenting steel wire bundles, according to which a cooling vat is heated by a heating fluid to a temperature of e.g. 500.degree. C considered as cooling temperature for patented steel wire bundles. Into this cooling vat is then introduced the steel wire bundle to be patented which in this way is pre-heated. The thus pre-heated steel wire bundle is subsequently introduced into a hot fluid containing heating vat where the wire bundle is heated to a patenting temperature of e.g. 900.degree. C. After the wire bundle has been patented in this heating vat, it is returned to the cooling vat where it is cooled to the cooling temperature prevailing therein while the cooling vat due to the absorption of heat from the wire bundle being cooled substantially maintains its cooling temperature from one cooling step to the next cooling step.