Abstract: A sorting nozzle having two tapered zones with elliptical cross-sections is able to orient and sort a large fraction of asymmetrical or "flattened" cells. This nozzle has particular application for sorting viable male (Y) and female (X) sperm populations in a cell sorter.

Abstract: A whirlpool injector with an air supply channel (4, 104) and a water supply channel (5, 105), a mixing space (6, 106) in which terminate the air supply channel (4, 104) and the water supply channel (5, 105), and a water/air outflow passage (7, 107) downstream of the mixing space (6, 106). A further air supply channel (10, 110) runs separately from the water supply channel (5, 105) and the first-mentioned air supply channel (4, 104), and opens outwardly via a separate air outflow passage (11, 111). When the water/air outflow passage is closed off, no water is forced into the further air supply channel. The risk of contact between water and live parts of a fan or the like in or upstream of the further air supply channel is limited considerably. The additional air outflow passage can be specifically designed for injecting air alone. The invention can also be embodied in a whirlpool system.

Abstract: Techniques for melting and forming aerosols from solid CIPC are disclosed. Solid CIPC in block form is convenient to ship and to handle. Solid CIPC in block form appears to have a consistency of solid paraffin wax. Solid CIPC is melted by controlled techniques to form a substantially pure liquid stream of CIPC. The molten or liquid stream of CIPC is converted to an aerosol of CIPC either by a pressurized, hot air stream or by a combustion gas stream.

Abstract: An air assisted fuel injector for an internal combustion engine includes a fuel nozzle having a fuel orifice and a targeting section cooperating with the fuel nozzle for targeting atomized fuel within the engine. A throttling section in disposed upstream of the targeting section and cooperates with the fuel nozzle. The throttling section throttles assist air prior to the air atomizing the fuel emerging from the fuel orifice. Thus, any adverse effects on fuel flow from the fuel injector due to back pressure variability downstream of the fuel nozzle are reduced. In a preferred embodiment, an air shroud is fitted on the nozzle of the fuel injector and includes both the throttling section and the targeting section.

Abstract: A two-fluid cleaning jet nozzle has an atomizing unit provided with an atomizing tube in which a liquid is atomized by a pressurized gas into liquid droplets, and an accelerating unit provided with an accelerating tube which accelerates and jets the liquid droplets against the surface of a workpiece to remove dust particles adhering to the surface of the workpiece. The sectional area of the atomizing tube available for gas flow is greater than the sectional area of the accelerating tube available for flow of the gas and the liquid droplets. The accelerating tube has the shape of a straight cylindrical tube or a Laval nozzle.

Abstract: A synthetic jet actuator, which can be micromachined if desired, generates a synthetic jet stream characterized by a series of successive vortices that can be used for effectively entraining adjacent fluid. The synthetic jet actuator can be used to bend, or vector, a jet stream from another jet actuator. Further, because the synthetic jet actuator exhibits zero net mass flux, the synthetic jet actuator can be used within a bounded volume. In structure, the synthetic jet actuator comprises a housing defining an internal chamber and having an orifice. A flexible metallized diaphragm forms a wall of the housing and can change the volume of the chamber when moved. An electrode is disposed adjacent to and spaced from the diaphragm, and an electrical bias is imposed between the metallized diaphragm and the electrode by a control system to force movement of the diaphragm. As the diaphragm moves, the volume in the internal chamber changes and vortices are ejected from the chamber through the orifice.

Abstract: A coal-water slurry liquid fuel or coal or other liquid fuel is atomized for combustion in the reburn zone of a boiler with a relatively small addition of natural gas to produce NO.sub.x reductions comparable to the reburn effect of natural gas alone as well as a more uniform temperature profile in the upper combustion zone of the boiler.

Abstract: The invention relates to a device and a process for spraying a product, especially a liquid fuel, into a working space which is external to the device. The device includes a nozzle for prespraying the liquid fuel into a confinement chamber and an outlet for ejection of a presprayed mixture into the working space. An additional pipe is provided for ejection of a gaseous spraying stream into the presprayed mixture inside the working space, at the outlet which ejects the presprayed mixture. The invention is particularly applicable to burners for glass melting furnaces.

Abstract: The invention relates to an apparatus for forming liquid droplets, such as a micro nebulizer, useful for preparing samples for subsequent analysis via MS, AA, ICP, CE/MS, and similar analytical systems. The apparatus has a mechanically stabilized inner microtube or needle, thereby ensuring controllably uniform droplet size The mechanical stabilization is provided by securing the inner microtube or needle, such as by narrowing the inner diameter of the outer microtube or otherwise narrowing the annular intermediate space between the inner and outer microtubes for a predetermined length. Thus, the inner microtube is secured in a centered or otherwise predetermined fixed radial position, with minimum perturbation of the fluid flow. Further, a tip, when coupled with the exit end of the outer microtube, provides a region in which the sheath fluid flow in the outer microtube stabilizes prior to both exiting the tip and colliding with the liquid analyte exiting the inner microtube.

Abstract: A dual concentric poppet valve assembly (44) includes an assembled body (45) having an opening (55) therethrough and having a sealing surface (56) surrounding the opening. A first member (46) is mounted in the body opening for axial movement relative to the body. The first member has a first sealing surface (70) arranged to be moved toward and away from the body sealing surface (56) to define a first variable-area orifice (96) therebetween. The first member has a concentric opening (72) therethrough and has a second sealing surface (71) surrounding the first member opening. A second member (48) is mounted in the first member opening for co-axial movement relative to the first member. The second member has a sealing surface (83) arranged to be moved toward and away from the first member second sealing surface (71) to define a second variable-area orifice (98) therebetween.

Abstract: A relatively efficient snowmaking gun which is of the compressed air and water type includes a water tube for receiving water from a source thereof under pressure and discharging the water in an annular diverging stream through an adjustable valve and a turbine which chops the water into fine droplets; and a central nucleator for receiving compressed air from a source thereof and for producing a central stream of fine ice particles downstream of the discharge end of the gun for mixing with the water to produce snow, temperature permitting. A preferred form of nucleator is an ultrasonic resonator for receiving air and water from sources thereof under pressure to produce an annular central stream of fine water droplets in air while creating ultrasonic waves downstream of the gun outlet. The gun can also include a casing defined by inner and outer shells surrounding the water tube and forming an air chamber which receives compressed air for discharge through a plurality of spaced apart nozzles.

Abstract: A burner assembly having improved flame length and shape control is presented, which includes in exemplary emodiments at least one fuel fluid inlet and at least one oxidant fluid inlet, means for transporting the fuel fluid from the fuel inlet to a plurality of fuel outlets, the fuel fluid leaving the fuel outlets in fuel streams that are injected into a combustion chamber, means for transporting the oxidant fluid from the oxidant inlets to at least one oxidant outlet, the oxidant fluid leaving the oxidant outlets in oxidant fluid streams that are injected into the combustion chamber, with the fuel and oxidant outlets being physically separated, and geometrically arranged in order to impart to the fuel fluid streams and the oxidant fluid streams angles and velocities that allow combustion of the fuel fluid with the oxidant in a stable, wide, and luminous flame. Alternatively, injectors may be used alone or with the refractory block to inject oxidant and fuel gases.

Abstract: A device for atomizing a liquid fuel comprising a central liquid fuel feed passage for feeding with liquid fuel an outer atomizing-gas feed passage for feeding with atomizing gas, these being coaxial overall,an atomizing head extending said passages, the head being equipped for each fluid with one or more ducts which converge into one or more nozzles made in the head and emerging in a combustion region in which the nozzles release a mixture of atomized liquid fuel and of atomizing gas, which head is held at the end of the coaxial passages by a nut screwed onto a wall of the outer passage,wherein the central liquid-fuel feed passage is surrounded by the atomizing-gas feed passage and the atomizing head includes a skirt surrounding inlets to the ducts for the liquid fuel, which skirt is received inside the central passage and the skirt and the said passage respectively have externally and internally complementing cross sections.

Abstract: A snow making tower wherein air and water are supplied under pressure to the top of the tower and discharged under pressure through nozzles to form plumes of atomized water for producing snow in subfreezing conditions. Additional water nozzles are positioned at the top of the tower to discharge more water in the form of spray that is directed into the previously described plumes of atomized water. This additional supply of water is independently valved for different ambient temperature conditions.

Abstract: Methods and apparatus particularly useful for atomizing a heavy highly viscous liquid into fine droplets (such as petroleum distillate resid to droplets on the order of 100 thousandths of a millimeter), with the aid of at least one auxiliary gas. This employs in a nozzle head an array of a plurality of primary channels and at least two secondary channels associated with each said primary channel. The primary channels each have an inlet end connected to a high pressure source of liquid, and have an outlet end defining an atomization orifice. The secondary channels each have an inlet end being connected to at least one source of auxiliary gas and an outlet end. The outlets of the secondary channels each intersect with a commonly associated primary channel at the same or different locations upstream of the respective atomization orifice at angles of less than 90.degree., typically 45.degree. or less. Liquid is passed through a plurality of primary channels thereby forming a liquid core stream.

Abstract: The present invention relates to an improved cleaning solution applicator for use in a hot water carpet extractor. The applicator comprises an elongate, multi orifice, liquid distributor positioned within the discharge opening of an air distributing nozzle. Warm moist exhaust air discharged from the extractor's suction fan is directed through the air nozzle passing over top of and underneath the liquid distributor converging down stream of the liquid distributor and before exiting the air nozzle's exit opening. Liquid exiting the liquid distributor's orifices is thereby atomized and conveyed, by the flow of air from the air distributing nozzle, toward the surface being cleaned.

Abstract: A means and method for spraying liquid and gas onto and across a particulate bed includes a horizontal liquid distribution tray disposed over the bed containing a plurality of gas and liquid spray distributors extending through the tray. The distributors include separate gas and liquid conduits or pipes having an entrance on top and an exit below, with the exits proximate each other underneath the tray. The conduits are coaxial with a portion of the gas conduit surrounded by the liquid conduit to define an annular space between them for the liquid to flow downwardly through. The gas flows down through the gas conduit, exiting as a gas core surrounded by the downflowing liquid. The gas expands and contacts the surrounding liquid to spray it on the matter below. A liquid spray generating device is located below the gas and liquid exit. Siphon caps automatically provide pulse flow of the liquid.

Abstract: In an adhesive sprayer for a living body, a hard insert portion extends from a sprayer body, a bendable portion extends from a distal end of the insert portion, and a nozzle portion is disposed on a distal end of this bendable portion. Gas from a gas inlet port formed in the sprayer body is injected from a gas injection port formed in the nozzle portion after passing through a passage which is allowed to extend through the interiors of the sprayer body, insert portion and bendable portion. Adhesive from an adhesive inlet port formed in the sprayer body is injected from an adhesive discharge port formed in the nozzle portion after passing through another passage which is allowed to extend through the interiors of the sprayer body, insert portion, and bending portion. The bending portion is bent by controlling a control member mounted on the sprayer body via a control cable extending through the interiors of the sprayer body, insert portion and bendable portion.

Abstract: A linear burner for the synthesis of silica by vapor-phase reaction of a silicon-containing feedstock in a flame comprises at least five slots opening to an exit face (52a) of the burner and extending side-by-side in the elongate direction of the linear burner, and includes means (P1-P10) to supply a separate gas flow to each of said slots. An assembly of separator plates (52) is disposed between opposed casing parts (50, 51), which assembly defines the slots. At least one of the casing parts (50, 51) defines at least part of a respective plenum chamber (54) for each gas flow, each plenum chamber (54) communicating with a different one of said slots in the separator assembly. The invention also extends to a method of operating such a linear burner.

Abstract: A mixing type drink distributor is formed of a head having a plurality of jet pipes for supplying different concentrated liquids and a supply port for supplying a diluent liquid to dilute the concentrated liquids, and a nozzle installed around the outer circumference of the head. The nozzle includes a mixing section for mixing one of the concentrated liquids with the diluent liquid, and an opening section situated under the mixing section for ejecting the mixture in the mixing section downwardly. Jet nozzles are fixed to the jet pipes to protrude from the lower face of the head so that the concentrated liquids are ejected through the respective jet nozzles without contacting the head.

Abstract: A fuel injection apparatus which is suitable for use with the combustion apparatus of a gas turbine engine, is adapted to produce reduced amounts of noxious emissions. The apparatus comprises a central core which is provided with two fuel supply ducts. The first fuel supply duct supplies fuel for atomization in a swirling airstream; the atomized fuel being subsequently thoroughly mixed with air in an axially elongate mixing duct. The second fuel supply duct supplies fuel to the downstream end of the core where the fuel is atomized by an air flow through a duct surrounding the core before being exhausted from the core downstream end.

Abstract: The invention relates to a method and a device for the simultaneous atomisation and dispersion of at least two liquids using propellant gas, whereby the resulting gas-liquid mixture is led through an atomising chamber comprising expansion zones arranged in series and flows out in the form of a spray cone from a nozzle orifice mounted downstream of the atomising chamber.

Abstract: A staged oxy-fuel burner for producing a generally flat fuel rich flame overlying a highly radiative fuel lean flame, the burner having a fuel passage terminating in a nozzle, the fuel passage and nozzle having a generally elongated cross-section, a housing of complementary shape surrounding the fuel passage, so that when fuel is introduced into the fuel passage and an oxidizer is introduced into the passage defined by a space between the housing and the fuel passage a generally flat fuel rich flame is produced at the nozzle end of the fuel conduit and a staging nozzle for introducing oxidizer underneath and in a shape complementary to said fuel rich flame to produce a highly radiative fuel lean flame under said fuel rich flame.

Abstract: Method and apparatus for reducing NOX production in an air-oxygen-fuel combustion process by creating post mix oxy-fuel flame and introducing air around said oxy-fuel flame at an angle of greater than 0.degree. to 90.degree. to the longitudinal axis of the oxy-fuel flame.

Abstract: The design and practical method of providing an all ceramic externally mixing dual gas torch with a multiplicity of intimately adjacent emissions supplied from separate and isolated internal gas chambers. Four-bore ceramic tubing is used and two of the through bores access the isolated fuel gas chamber and side-slotting or notching accesses the remaining two holes to the isolated oxygen chamber. The bundling of a multiplicity of slotted tubings provides a multiplicity of intimately adjacent dual gas emissions. The slots are oriented to provide a desired flame pattern.

Abstract: An oxidant injector for a burner having a nozzle with a surface prescribing a continuous function enabling laminar flow of secondary oxidant over the nozzle surface which functions simultaneously to take heat off, and to prevent exothermic free radical recombinations from occurring proximate, the nozzle surface.

Abstract: The present invention relates to an improved cleaning solution applicator for use in a hot water carpet extractor. The applicator comprises an elongate, multi orifice, liquid distributor positioned within the discharge opening of an air distributing nozzle. Warm moist exhaust air discharged from the extractor's suction fan is directed through the air nozzle passing over top of and underneath the liquid distributor converging down stream of the liquid distributor and before exiting the air nozzle's exit opening. Liquid exiting the liquid distributor's orifices is thereby atomized and conveyed, by the flow of air from the air distributing nozzle, toward the surface being cleaned.

Abstract: A hydrogen torch comprising concentric inner and outer fluid delivery tubes wherein the outer tube comprises silica and the inner tube comprises silicon carbide. One end of the inner tube is connected to a third tube comprised of silica which has an inlet in fluid connection with a hydrogen supply line. The outer tube is in fluid connection with an oxygen supply line. A reverse ball joint connection is used to join the tubes and defines an annulus between the inner and outer tubes through which the oxygen can flow and be isolated from the hydrogen flowing within the inner tube.

Abstract: An atomizer for atomizing a high solids soil paste containing pebbles or agglomerates includes an inner conduit for channeling the paste and an outer conduit surrounding the inner conduit whereby the outer conduit and the inner conduit define an annular space therebetween in which a flow of compressed air is channeled in the space. The inner conduit and the outer conduit have a discharge end which is connected to a discharge spraying head made of a wear-resistant and a high temperature-resistant material such as tungsten carbide. The spraying head has three walls which accommodate a flow plate which is connected at the top of the first wall and third wall for defining a rectangular opening of the spraying head. The flow plate has two air passages cut therethrough, which are also rectangular, which channel air from the annular space into the spraying head for dispersing the soil paste into an atomized spray which is discharged out of the opening.

Abstract: The design and practical method of providing an all ceramic externally mixing dual gas torch with a multiplicity of intimately adjacent emissions supplied from separate and isolated internal gas chambers. Four-bore ceramic tubing is used and two of the through bores access the isolated fuel gas chamber and side-slotting or notching accesses the remaining two holes to the isolated oxygen chamber. The bundling of a multiplicity of slotted tubings provides a multiplicity of intimately adjacent dual gas emissions. The slots are oriented to provide a desired flame pattern.

Abstract: An oxy-fuel burner for a forehearth system comprising an oxygen conduit and a fuel conduit disposed concentrically within the oxygen conduit, forming an annulus between the fuel conduit and the oxygen conduit. The fuel firing end of the fuel conduit is recessed within the oxygen conduit at a distance from the oxygen firing end of the oxygen conduit. The ratio of the inside diameter of the oxygen firing end of the oxygen conduit to the inside diameter of the fuel firing end of the fuel conduit is in the range of about 2:1 to 8:1.

Abstract: A fluid applicator having a multi-zone noncontacting die set for dispensing a selected plurality of thin flat fiberized adhesive streams as uniform rectangular strips of adhesive on a substrate. The die set uses shims to establish the fiberizing air slot, and the adhesive dispensing and fiberizing air shims have tapered tabs to provide improved coating edge control. The fiberizing air die also has simplified fiberizing air flow, and the die set includes a mechanism for clamping the die set together which is especially suited for a multi-zone die set. The fluid applicator includes a manifold heater with a simplified and improved air flow, and a universal adhesive manifold.

Abstract: Apparatus and methods for producing intermittent, discrete patterns of foam coating material, onto discrete substrates or substrate areas, where the patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. Air flow is initiated from both air slots prior to the initiation of the foam flow. Also, the air flow is continued beyond that point in time when the foam flow ceases. The delays between the operations of the air flow and the foam coating flow are on the order of micro seconds. Alternatively, the lead and lag air start and stop times on each side of the foam coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge on the substrate.

Abstract: An apparatus is provided for the deposition of melamine from hot reaction gases into a wash liquid. The apparatus includes a heated gas feed pipe for introducing the hot reaction gases into an absorption pipe. The gas feed pipe is provided with an extension nozzle, the lower end of which projects coaxially into the absorption pipe. The upper part of the absorption pipe and the gas feed pipe are surrounded by a closed container which serves as a storage vessel for wash liquid. The inner wall of the absorption pipe is constantly washed by flowing wash liquid from the closed container.

Abstract: Injection apparatus for injecting at least two components to be brought into reaction with one another, comprising a hollow injection needle that can be charged by a plurality of syringe coupling connections corresponding in number to the number of components, preferably for endoscopic purposes and fashioned displaceable in a catheter on the basis of a grip member, whereby the syringe coupling connections are provided at the catheter in this case, characterized in that the components can be supplied to the injection needle (3) through a corresponding plurality of hoses (4, 5; 17) preferably proceeding through the catheter (1) and respectively connected to one of the syringe coupling connections (6, 7) in the grip member (2), whereby the components discharge in a common plane (30) wherein the reaction of the components is initiated.

Abstract: In a vertical cylindrical casing (1) of the apparatus along the axis thereof a gas-supplying pipe (8) is disposed, the end face (11) of which is disposed above a gas-distributing grating (3) at the level of the height of a fluidized bed formed thereon and in which a tube (12) is arranged with a swirler (13) inserted thereinto, said tube forming an annular gap (14) with the pipe (8). On the gas-supplying pipe (8) and on the gas-distributing grating (3) truncated cones (15, 16) are arranged coaxially, the upper end face (17) of the external cone (16) being disposed below the end face (11) of the gas-supplying pipe (8). In the upper part of the casing (1) in front of the inlet to an axial gas-discharging pipe (7) a baffle cone (19) is mounted.

Abstract: Nozzle, apparatus and method for extinguishing fires that includes applying to a fire simultaneously a first fluid surrounded by a second fluid and that includes a nozzle for discharging a first fluid in a path surrounded by a second fluid.

Abstract: A burner for burning fuel in an oxidant having a fuel nozzle sandwiched between upper and lower oxidant nozzles. The fuel nozzle and upper and lower oxidant nozzles produce fuel and oxidant jets of outwardly divergent, fan-shaped configuration to provide a wide uniform flame and thus the elimination of hot spots. Upper and lower secondary oxidant nozzles can be provided in staged combustion such that fuel is burned and oxidant supplied by the upper and lower oxidant nozzle means in the substoichiometric ratio and then combustion is completed by oxidant supplied by the secondary upper and lower oxidant nozzles. In another aspect, a nozzle is provided in which a passageway is divided in a lengthwise direction and thus the flow of oxidant flowing through the passageway is divided into a plurality of subflows of equal velocity and of gradually divergent configuration to prevent the decay of a fan-shaped flow of oxidant from the nozzle.

Abstract: A greater volume of air is entrained in the water flow from a hydrotherapy jet by directing the discharge from a first venturi nozzle through a second nozzle that constrains and accelerates the flow. For greatest aeration the ratio of the discharge orifice diameter for the first nozzle to that of the second nozzle is about 0.7-0.85, the ratio of the distance between the discharge orifices for the two nozzles and the diameter of the first nozzle's discharge orifice is about 0.85-1.5, air is introduced into the discharge from the first nozzle from a location fully behind that nozzle's discharge orifice, the flow of air to the downstream side of the second nozzle's discharge orifice is blocked, and the upstream end of the second nozzle overlaps the downstream end of the first nozzle.

Abstract: A water manifold and air supply system for use with a multi-compartment rotating drum apparatus for the fermentation of natural organic material which provides for selective injection of air and predetermined amounts of water into compartments of the drum during its rotation which system includes an air supply conduit concentrically aligned with the rotational axis of the drum, a first water-conduit section fixedly secured to the rotating drum, a second water-conduit section concentric with the rotational axis of the drum residing within the air supply conduit and connected to the first section through a water-tight seal, the two water-conduit sections and air supply conduit being respectively connected to stationary water-supply and air-supply means by swivel joints.

Abstract: A method and apparatus for extinguishing fires by simultaneously applying a spray of dry powder and liquid/liquid-foam, including a nozzle for the simultaneous spray of powder and liquid.

Abstract: A burner apparatus for burning hydrocarbons. The apparatus comprises a body defining a plurality of nozzle ports therein, each port facing in a different direction, a discharge nozzle disposed in each nozzle port, and a water ring assembly disposed around the body. Each nozzle is held in place by a retainer such that a first gap is defined therebetween, and a retainer nut is attached to the body adjacent to the retainer such that a second gap is defined between the retainer and the nut. This second gap acts as an air discharge orifice and is in communication with an air passage defined in the body. The water ring assembly comprises an outer ring and an inner ring which combine to define an annular water chamber therebetween. The water chamber is in communication with a plurality of notches in the outer ring which act as water discharge nozzles for directing a water stream toward the burning petroleum and air stream discharged from the apparatus.

Abstract: A shower spray system includes a shower head which is positionally adjustable on a vertical rod. The shower head interconnects with a source of water under pressure and a source of air under pressure. The shower head includes a plurality of nozzles, certain of which communicate with the water source to emit water, and others of which communicate with the air source to emit air. In operation, the shower head emits a mist of water from the water nozzles, and a plurality of air streams from the air nozzles. The result is the sensation of greater water flow than actually achieved by the shower head and increased rinsing of the body with decreased water flow.

Abstract: The pressurized gas is supplied by two sleeves separated by a sprayer device forming a funnel. The narrow end of the funnel has a spraying head with, in the plane of symmetry (P) of the device, at least one slot through which the liquid flows. The pressurized gas passes through a series of openings provided on either side of the slot. A liquid supply tube is arranged parallel in relation to the wide end of the funnel and has openings through which the liquid flows directly or indirectly into the funnel and passes through the slot without any appreciable pressure.

Abstract: A plural component air spray gun is characterized by a spray head assembly that has a pair of hemispherically shaped fluid outlet orifices, the straight sides of which are facing, parallel and separated by a relatively thin wall. Each orifice receives a respective one of two liquid materials delivered through associated liquid supply passages, and the passages are inclined so that streams of liquid emitted from the orifices come together a short distance beyond the orifices. Air emitted from an atomizing air orifice surrounding the two fluid orifices mixes and breaks up the liquid material streams into an atomized conical spray. To form the conical spray into a fan-shaped pattern, an air cap directs air jets against opposite sides of the spray.

Abstract: A burner and combustion method employing oxygen or oxygen-enriched air as the oxidant comprising a low velocity oxidant stream in proximity to high velocity main oxidant within a combustion zone enabling efficient combustion with a stable flame at very high oxidant velocities.

Abstract: A one-piece high-solids nebulizer has a body which, in use, is substantially horizontal, and has an upright groove formed across one end. Extending through the body are a gas passage and, above it, a parallel liquid passage of larger cross-sectional area, each terminating in an outlet orifice opening into the groove. A gas inlet to the gas passage may be connected to a source of gas under pressure, and a liquid inlet to the liquid passage may be connected to a source of liquid under pressure and to be nebulized. The body is tapered to both sides of the groove to reduce the area of the body bordering the groove, and this end of the body is also bevelled from below to reduce the depth of the groove below the gas outlet orifice.

Abstract: A burner and combustion method employing oxygen or oxygen-enriched air as the oxidant comprising a low velocity fuel stream in proximity to high velocity main fuel within a combustion zone enabling efficient combustion with a stable flame at very high fuel velocities.

Abstract: The nozzle comprises an oxidizing outer heating ring and a carburizing inner heating ring surrounding the cutting jet. This nozzle is made in two parts respectively forming a unit (1) opf injectors and a cutting unit (2) in adjoining relation to each other in a transverse joint plane and in which are provided various passageways (4, 5). Grooves (7) are provided for putting the outer passageways (5) in communication with the inner passageways (4) so as to supply to the inner passageways (4) the required small quantity of oxygen for the inner heating ring from the oxy-fuel mixture supplied to the outer passageways (5).

Abstract: A ribbon gas burner for use in a baking oven has a row of gas apertures disposed between two rows of air apertures through which air is forced under pressure. The streams of air issuing from the two rows of air apertures are inclined inwardly towards the gas stream, thereby lengthening the ribbon flame produced by the burner and improving the uniformity of heating within the band oven.