Abstract: A paint spray booth apparatus and method, particularly for automated paint applications, is illustrated and disclosed. The booth has a spray painting chamber and a plenum thereabove. Unlike prior art booths, the plenum of the present invention provides air flow only where needed to control overspray, and generally the plenum is only 60%, or less, in width or cross-section than the prior art, full ceiling width plenums. In carrying out the method of the present invention air is supplied from the plenum to the spray painting chamber only where needed to control overspray so that consequently the quantity of air utilized is substantially less than in prior art booths with air flow from their full width plenums. In certain booths where painting occurs on both sides of the booth, it is advantageous to provide the plenum in the form of two or dual plenums, each offset from the center of the booth.

Abstract: There is disclosed a method for the continuous marking of electric strands with which annular markings, which are limited in axial direction, are applied to the surface of the strands by means of color jets. The color jets emerge under pressure from at least one nozzle which is driven by an electrical oscillation system, the frequency of which is controlled proportionally to a rate of withdrawal of the strands. For an easy changing of the axial distance between the markings, square pulses are fed to the oscillation system from a converter which converts electrical d.c. voltage into a square waveform signal at a specific frequency. The square waveform drives the oscillation system at the specific frequency. As a desired value, the converter is fed a d.c. voltage which is proportional to the rate of withdrawal of the strand.

Abstract: A process for producing a metal-glass glaze composite pipe including removing corrosion from a metal pipe, simultaneously rotating and translating the pipe through a protective cover operating under a substantially non-oxidating environment and containing an induction pre-heating device and a pair of spray guns. The pre-heating device heats the pipe to a first predetermined temperature while the first and second spray guns apply first and second layers of hot-sprayed, flame-liquefied powdered glaze material to the pipe. An induction post-heater is provided to ensure the quality of seal effected by the layers of glaze material.

Abstract: Arrangements are disclosed for an automatic mobile and components thereof together with a new mass transit system for said mobile wherein cost reductions, manufacturing simplicity and new methods of travel are obtained primarily through the use of Integrated Sub Systems, Symmetry, Remanufacturability, Transfusion Coatings, and an Automatic Transport Mode thereby resulting in elimination of large automotive assembly plants and the haulaway delivery industry with subsequent opening-up of competition which will allow new automotive industries to form with very minimal ini-investments.

Abstract: A continuous process for coating a series of workpieces with a metal coating comprises the steps of cleaning the workpieces with a high-pressure water system which utilizes particulates; isolating the workpieces in a non-oxidizing chamber; spraying the workpieces with a wet flux; inductively preheating the workpieces with a preheat induction coil; spraying a coating metal onto the surface of the workpieces; inductively heating the workpieces with a main induction coil; and continuously conveying the workpieces through each of the above steps.

Abstract: A coating applicator is provided for depositing a film on a surface of glass or other substrates by chemical-vapor deposition. The applicator includes a pair of opposing coating nozzles for applying a vaporized coating-chemical reactant in a carrier gas to the surface at such a concentration and velocity that coating of the surface is achieved under substantially reaction-rate-controlled conditions. Each coating nozzle is positioned adjacent the surface with a small clearance therebetween, the clearance being open to the outside atmospehre. The opposing coating nozzles are directed toward each other at a selected angle with respect to the surface of the substrate. The angle and the clearance provide a condition where there is substantially no intermixing of coating vapors with the outside atmosphere.

Abstract: Apparatus and method for controlling the operation of a plurality of nozzles for spraying a liquid substance on a product. The nozzles have different flow volumes and are located adjacent the product. A sensor measures the quantity of the product, and a control responsive to the sensor opens selected nozzles to produce a desired ratio of the quantity of the substance to the quantity of the product. There is further provided another sensor for measuring the quantity of the substance, the control being responsive to the two sensors and operative to determine the actual ratio of the quantity of the substance to the quantity of the product and to adjust the actual ratio to match the desired ratio.

Abstract: A method of using a sequence control system in combination with a spray system for applying a liquid, such as cooking oil, to a surface of a pan carried by a conveyor. The controller, which is a microprocessor based unit, is connected to spray nozzles adapted for projecting atomized droplets of liquid between charged electrodes in a timed sequence to cause the charged droplets to be attracted to and impinge against partial areas of a grounded pan surface to form a continuous substantially uniform film of liquid on the surface.

Abstract: There is disclosed a method of painting an object by reciprocating a plurality of painting machines perpendicularly to the direction in which the object is conveyed on a production line. The delivery of paint from the painting machines is cut off at each turn of the orbits drawn by the adjacent ones of the reciprocating painting machines which create overlapping orbits. The starting points and the ending points of the cutoff for the adjacent machines are placed on the same straight line on the object.

Abstract: Fluoropolymers in the form of solid particles of specified diameter and dispersed in water are added and mixed with polycarbonate resin particles at a rate of 0.1 to 9 liter/hour to obtain a uniform coating of the fluoropolymer on the polycarbonate resin particles. The proportion of fluoropolymer added is from 0.01 to about 70 parts for each 100 parts by weight of polycarbonates and mixing is carried out to continually bring polycarbonate resin particles (non-contacted) into contact with the fluoropolymer dispension as it is added.

Abstract: A process for producing refractory, carbon-bonded ceramic moldings includes spraying a low-viscosity organic containing carbon containing binder onto a coarse fraction of a refractory component, the coarse fraction having a particle size larger then 0.5 mm while maintaining the coarse refractory fraction having a particle size smaller then 0.5 mm onto the coated granules, pressing the granules thus produced into moldings, and subsequently curing the organic binder in the moldings, and tempering or firing the moldings.

Abstract: The invention relates to the application of a releasing agent to a surface of a glass plate which is to be subsequently bent in a heated state together with another glass plate thereon. The glass plate is held in a standing posture, and hot air is blown perpendicularly against a surface of the glass plate, and simultaneously an aqueous solution of a releasing agent is sprayed from a plurality of spray nozzles into a space in front of the glass plate surface such that the sprayed solution mixes with the hot air before arriving at the glass plate surface. In an embodiment the spray nozzles are directed parallel to the glass plate or obliquely so as to make a small acute angle with the glass plate and arranged such that the hot air forces droplets of the sprayed solution to move toward the glass plate surface together with the hot air. In another embodiment the spray nozzles are directed perpendicularly toward the glass plate and arranged such that the sprayed solution soon mixes with the hot air.

Abstract: A moistening arrangement for moistening the flaps of envelopes comprising a guide path for guiding envelopes, a moistener, an arrangement for moving the moistener transversely of the guide path, a first drive for moving envelopes at a first speed onto the guide path, a detector for detecting the first speed, and a second drive for moving envelopes away from the guide path at a second speed. The first and second drives are spaced apart a distance less than the lengths of the envelopes. A sensor arrangement senses the widths of the flaps of envelopes at a determined position between the first and second drives, and a control arrangement is provided for controlling the position of the moistener as a function of the speed of an initial portion of the envelope, and as a function of the speed of a final portion of the envelope.

Abstract: The present invention relates to a corrosionproof coating material characterized by including a triazine derivative possessing a thiol group, and accordingly being effective for coating an extremely air oxidizable metallic material and processed articles thereof, such as a rare earth-iron-boron type permanent magnet, that are easily oxidizable in the air.

Abstract: Silicone application apparatus and method for applying a controlled amount of silicone emulsion to the surface of a moving web such as a continuous web in a printing press. The applicator comprises a silicone supply tank, a silicone emulsion applicator tray, a pump for pumping silicone emulsion from the supply tank to the applicator tray, and applicator rollers in contact with the silicone emulsion in the tray and the moving web to apply the silicone emulsion to the moving web. The application tray includes an operating level drain to maintain an operating level of silicone emulsion in the tray, a overflow drain at a higher level which prevents overflow of the application tray in the event that the operating level drain is clogged.

Abstract: A coating apparatus for spray painting vehicle bodies includes a reciprocating device which carries spray guns located along a conveyor and being operated to move in back and forth directions during spraying. The coating apparatus further includes a relative speed adjusting unit which keeps the spray gun speed at a desirable level in both directions of the reciprocating spray movement, whereby an even coating is obtained. A coating method includes the step of controlling or keeping the relative speed between the article and the spray gun, substantially constant in both directions of movement of the spray gun.

Abstract: This invention relates to a method for controlling the emission, and recovery, of volatile solvents. In particular, this invention relates to a type of finish material applying apparatus which has become known as a robotized spraying cabinet and to methods of operating such an apparatus. In accordance with this invention, materials sprayed through the spray head and which escape adherence to a sprayed articles impinge onto overspray directing members disposed adjacent the conveyor and between the conveyor and the reservoir, a quantity of solvent for the finishing materials is retained at a location adjacent the conveyor and supplying for use in cleaning the conveyor, and the overspray directing members and retained solvent to be supplied for cleaning are chilled and thereby the vapor pressure of the volatile solvent is reduced, whereby the volatile solvent is maintained in liquid form and control over the emission thereof is facilitated.

Abstract: Process and apparatus for forming a plastic coating on a metal strip. A metal strip is cleaned, surface treated, coated with an electrostatically charged plastic powder in an enclosed chamber using a plurality of spray guns positioned on both sides of the strip, inductively heated to above the melting point of the powder, and maintained in an infrared heater until the fused powder is flowed into a coating having a smooth surface and a uniform thickness. Thermoplastic and thermosetting coatings, having thicknesses of at least 10 microns formed using total induction and infrared heating times of less than 60 seconds, can be fabricated without cracking.

Abstract: Disclosed is a method for testing, adjusting and maintaining the viscosity of paint used in a vacuum applicator painting apparatus. By maintaining the paint viscosity within an optimum range, a layer of paint is applied to all surfaces and edges of workpieces to be painted is in a most economical, efficient and complete manner. Also disclosed is an improved painting apparatus of the vacuum applicator type for uniformly and efficiently painting large numbers of workpieces such as plywood boards.

Abstract: A method of applying a clear glass primer material and then a black glass primer material onto the marginal edge of a windshield and/or rear window of a vehicle, and for applying a black metal primer onto the mating body flanges of the vehicle, in which an airless, cross cut-type flat pattern nozzle is employed to discharge such primer materials at pressures substantially below the normal pressures at which airless spray nozzles are operated to produce an atomized stream. A triangular-shaped liquid film emission of the primer materials is produced by such an airless spray nozzle, operated at low pressures, which forms a well defined pattern on both the windshield and the associated body flanges without splashing or overspray onto the surrounding surfaces.

Abstract: There is disclosed a method for coating the cathode of an electron gun with a thermionic emissive substance comprising the steps of producing a plasma within a nozzle body, injecting nitrogen, hydrogen, helium or argon, or mixtures thereof into said nozzle body, and feeding a powder or sintered bodies of said thermionic emissive substance around the negative electrode of said plasma, whereby said thermionic emissive substance is sprayed and deposited on the metal cap of said cathode in an oxidized state under the heat and pressure of said plasma. The nozzle body oscillates around a pivot while a plurality of electron gun cathodes move on a curved carrier in front of the nozzle for depositing the emissive substance in a zig zag path across the plurality of cathodes.

Abstract: A process is disclosed for reducing yarn threadline breakage during the washing step of a wet spinning operation to make fine denier yarns.

Abstract: A method and an apparatus enable the application of a flux material onto a geometrically defined joint to be soldered.The flux material is first ultrasonically atomized in a pressureless or almost pressureless manner. Thereafter, the flux material mist is transported and applied to the joint to be soldered by a directed air stream.

Abstract: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The coolant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53).

Abstract: Organic vapor and particulate matter resulting from spray painting in continuous painting lines are separately collected and disposed of in a closed painting system that permits access for touch up. The painting line typically includes an automatic painting booth, a touch up booth, a flash off tunnel, and a curing oven, and a conveyer that conveys objects to be painted through the line in that order. The automatic painting booth recirculates air through a filter and through the booth to maintain proper painting conditions, and is tightly closed except for the conveyer entrance. The touch up booth has an opening through which workers have access to the painted objects, and through which a makeup flow of air is drawn to prevent particulate and organic compounds from escaping. The make up airflows to the automatic painting booth. A portion of the flow of organic-laden air is withdrawn from the automatic painting booth to maintain the air within the booth at a safe organic concentration level, and burned.

Abstract: Spray coating, particularly flat spray coating of circuit boards. Applicant's method of conformal coating, eliminates "railroading" at the edges of the flat spray web and assures precise control of the amount of coating material placed on the circuit board surface.The method includes longitudinally advancing a pressurized coating over a surface to be coated, while simultaneously feeding the coating in a flat spray pattern, and triggering feeding "ON/OFF" so as to proportion the amount of coating being fed onto the surface and to reduce "fishtail" at the edges of the flat spray pattern.

Abstract: Method and apparatus for coating mouldings consisting of fluidizing the mouldings by means of a rotating spiral gas flow. A holder (A) containing the mouldings is provided with gas inlets (3). A gas flow through the gas inlet (3) brings the mouldings in a spiral rotating movement in a sphere (C) placed on holder (A). Coating material is sprayed in the apparatus by a tube (D), oscillated by the gas flow, on the whirling mouldings.

Abstract: Following the application of plastic extrudate to transmission medium being moved along a path of travel to provide an insulative covering, the covered medium is moved through a cooling medium and then through an air wipe device (20). The air wipe device, which is effective to remove any of the cooling medium remaining on an outer surface of the cover, comprises a helically extending manifold (42). Spaced along inner surfaces (51, 52) of the manifold are a plurality of sets of orifices (50--50) from which air is directed into engagement with the moving transmission medium. Each set of orifices is arranged to direct streams of air toward the path of travel and hence into engagement with the transmission medium in a manner such that cooling medium is removed from the entire outer surface of the transmission medium. Also each set of orifices is such that the air which is directed toward the moving transmission media does not reengage the air wipe device.

Abstract: An apparatus for and method of coating an article by the use of electro-static attraction of ionized particles which are subsequently cured. The apparatus includes a first foraminous conveyor for carrying the article through a powder coating zone and a second conveyor for carrying the article through a curing zone. The surface of the article which rests on the foraminous conveyor is cleaned of particles as the article is transferred from the first foraminous conveyor to the second conveyor. The first foraminous conveyor is also cleaned of particles after the article has been transferred. After the articles have been cured to form a coating on the article, the article is put through the coating system again except that the article is supported on the conveyor so that the surface which was not coated in the first pass through the system is out of contact with the conveyor.

Abstract: An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient in a solvent which is immiscible with the liquid. The improvement herein comprises running the process at a temperature lower than ambient or room temperature whereat substantially no solid material is formed on the surface of the water layer during the process.

Abstract: A method and an apparatus for impregnating one side of a porous board, such as gypsum boards, with a precise amount of compatible phase change material. A predetermined amount of the phase change material is applied at a predetermined uniform rate to the one surface of the board so that a predetermined amount of the phase change is impregnated. The rate of application is lower than the absorption rate of phase change material. Also, the temperature of the board must be above the melting point of the phase change material during the impregnation. The process and apparatus may be either a continuous, a semi-continuous or a batch operation, and the resulting product is intended as a building construction material.

Abstract: A spray painting device having a first spray mechanism and a second spray mechanism located downstream of the first spray mechanism in an assembly line along which an automobile body is conveyed. A spray head of the first spray mechanism is fixed at a constant height when spraying paint onto a side outer panel portion which is situated over a front or rear wheel of the automobile chassis, and is moved up and down when spraying paint onto a side outer panel portion which is not situated over the front or rear wheel. A spray head of the second spray mechanism is located so that a constant distance is maintained between the spray heads and the side outer panel to spray a uniform coat of paint onto the side outer panel.

Abstract: A method of manufacturing a mirror, including forming on a transparent glass sheet a copper reflective layer by chemical deposition from contact with a coppering solution; and coating the copper reflective layer with at least one protective layer effective to protect the copper reflective layer from corrosion by the atmosphere, wherein the copper reflective layer is formed under conditions effective to provide a mirror which, after having been subjected to a CASS Test for 120 hours, has a factor of luminous reflection which is at least 0.90 times what it was before the mirror was subjected to the CASS Test.

Abstract: A substantially vertical surface of an object such as a vertical rear surface of an automotive body is coated in a coating booth in which a fluid such as air is supplied a downward direction to forcibly lower a mist of floating paint particles. Paint spray guns for ejecting paint sprays are positioned perpendicularly to the vertical surface. Then, the paint spray guns are displayed with respect to the vertical surface in a direction against the downward direction in which the fluid is supplied, while ejecting paint sprays from the paint spraying means to coat the vertical surface.

Abstract: The present invention includes a coated polyolefin particle and a method for post-reactor stabilization of polyolefins comprising:melting a polyolefin wax;blending at least one additive into the liquid polyolefin wax;fluidizing polyolefin particles to be stabilized with a hot gas;spraying the liquid polyolefin wax containing at least one additive on the fluidized polyolefin particles, and forming at least partially coated polymer particles;maintaining the at least partially coated polymer particles and fluidized polyolefin particles at a temperature which is sufficiently high to prevent the formation of fibers from the wax and which enhances the formation of stabilized polymer particles.

Abstract: A method and apparatus for dispensing droplets of molten thermoplastic adhesive onto a moving substrate comprises a spray device having a nozzle formed with a discharge outlet which ejects a continuous stream of molten thermoplastic adhesive. A stitcher device connected to a source of pressurized air is operative to supply intermittent, pulsed jets of atomizing air to air jet bores associated with the nozzle which discharge the pulsed air jets into contact with the exterior of the continuous stream of molten thermoplastic material with sufficient energy to shear well defined globules or droplets from the continuous stream and either allow such droplets to fall onto the substrate under the influence of gravity and due to the momentum of the stream in an essentially straight-line pattern, or to project such droplets onto the substrate to form an essentially random pattern of droplets.

Abstract: An air curtain conveyor protection system that prevents airborne particles from entering a slot through which the product support members extend from the conveyor mechanism housing into the product treatment booth. A continuous stream or curtain of high velocity air flows across the slot in the conveyor housing, exiting from an outlet or supply nozzle formed by a plenum on one side of the slot and entering into a suction nozzle formed on the opposite side of the slot by a second plenum. A fan or blower is associated with each plenum to force ambient air through the supply nozzle and to draw air through the suction nozzle. Ambient air flowing between the nozzles forms an air curtain across the slot to prevent ingress of the deleterious atmosphere in the product treatment booth into the conveyor housing.

Abstract: A coating method and apparatus allows coating of a paper substrate from any point from the first de-watering stage to a fully dried stage. The method includes the making of a fog from a coating slurry, and directing the fog to a nozzle that does not physically contact the substrate. An air current normally carries the fog; but, electrostatic charges can be applied to the substrate and the fog to cause the fog to be attracted and adhere to the substrate. Vacuum chambers contiguous with the nozzle pick up excess fog and deliver the excess to a separator for recycling.

Abstract: A coating applicator is provided for depositing a film on a surface of glass and other substrates by chemical vapor deposition. The applicator includes a pair of opposing coating nozzles for applying a vaporized coating chemical reactant in a carrier gas to the surface at such a concentration and velocity that coating of the surface is achieved under substantially reaction rate controlled conditions. Each coating nozzle is positioned adjacent the surface with a small clearance therebetween which is open to the outside atmosphere. The opposing coating nozzles are directed toward each other at a selected angle with respect to a normal to the surface of the substrate. The angle and the clearance provides a condition where there is substantially no intermixing of coating vapors with the outside atmosphere.

Abstract: A method and apparatus for dyeing a substrate using an array of spray generators. In a preferred embodiment, each spray generator is comprised of a gas port from which an intermittent jet of pressurized gas is directed onto the substrate to be dyed. Positioned along the path of the gas jet is a nozzle from which continuously flows a liquid dye. When dyeing is desired, i.e., in response to pattern data, the gas jet is rapidly cycled on and off, thereby atmoizing the dye emerging from the nozzle and establishing discrete bursts of spray which meter a controlled quantity of dye onto the substrate. When the gas jet is interrupted, the nozzle projects an interrupted stream of liquid dye which does not contact the substrate.

Abstract: The present invention discloses a method and apparatus for coating adhesive for mounting parts onto a printed substrate in which an adhesive coating nozzle is arranged in correspondence to the printed substrate placed on an X-Y table controlled to be moved in an X-Y direction, and said coating nozzle is operated to coat the adhesive within an adhesive storage tank in position on each of the printed substrates, at which a waste coating is carried out for said coating nozzle before the latter perform the coating operation with respect to the printed substrate, whereby even if the adhesive trickles from the end of the nozzle to bring forth the liquid-drip state, the adhesive in the liquid-drip state is eliminated by the waste coating of the coating nozzle to prevent the adhesive in the amount more than as needed from being coated on the printed substrate, thus always maintaining a stable amount of coating thereby positively preventing occurrence of irregularities in quantity.

Abstract: Coating defects are overcome which occur in the prior art as a result of positional tolerance variations between an automatic spraying device and a part, as the part, e.g., an automobile body, is transported along a conveying system into the spray booth of a coating station during a series coating operation using lacquering robots to apply paint. The distance between at least one fixed reference point on the coating apparatus and a reference point on the automobile body is measured during a preparatory coating operation and stored in the processing program of an operation controlling computer as a standard reference distance value. The reference distance is remeasured for each automobile body during subsequent series coating operations and then compared to the standard reference distance value. The processing program then corrects the movements of the lacquering robots as a function of the calculated deviation to elimate the coating defects arising out of positional tolerance variations.

Abstract: An apparatus for spraying droplets of molten thermoplastic adhesive comprises a spray device having a nozzle formed with a discharge outlet which ejects a continuous stream of molten thermoplastic adhesive. A stitcher device connected to a source of pressurized air is operative to supply intermittent, pulsed jets of atomizing air to air jet bores associated with the nozzle which discharge the pulsed air jets into contact with the exterior of the continuous stream of molten thermoplastic material forming well defined globules or droplets for deposition onto a substrate.

Abstract: Apparatus for automatically spraying the sides and the top of workpieces such as vehicle bodies as they are conveyed through a spray station. Separate apparatus is provided for spraying the two sides and the top of the conveyed workpiece. Each apparatus is capable of moving one or more spray guns both in a direction transverse to the movement of the conveyed workpiece and towards and away from the conveyed workpiece, and of rotating the spray guns about two axes to direct the spray guns perpendicular to the surface being coated.

Abstract: Apparatus and method for coating the top surface of a high speed metal sheet with a thin film of lubricant having a uniform thickness. The apparatus includes a header assembly positioned above the moving sheet, a plurality of spray nozzles inclined at an angle relative to the oncoming sheet, and a solenoid operated valve to control flow of lubricant through each of the spray nozzles. The orifice of each nozzle is sized to produce a mist. The angle of inclination of the spray nozzles is sufficiently large so that the mist is generally sprayed above rather than toward the sheet. The method includes selecting a specific spray nozzle arrangement and adjusting the header assembly so that the span of the mist corresponds to the width of the metal sheet. An extremely thin and uniform thickness of lubricant film is formed on the sheet as the particles of mist settle onto the sheet. Waste of lubricant is minimized.

Abstract: The present invention relates to an electromagnetic system for applying a coating to a metal or metal alloy substrate. The system utilizes a high frequency electromagnetic field to maintain a supply of coating material in a molten condition, to restrict the flow of the molten coating material, and to control the thickness of the applied coating layer. Downstream cooling solidifies the coating layer. The system has particular utility in forming tin coated copper or copper base alloy products.

Abstract: A method of joining surfaces involving dispensing of hot-melt adhesive onto one of the surfaces in a pattern of quasi-random dots splattered onto the surface. The dots are made by breaking a fluid stream of hot-melt adhesive into irregular globules near the tip of a nozzle. The globules are sufficiently massive to remain molten yet will travel in a directed trajectory. Coverage in a stripe pattern has a quasi-random coverage feature where there is a more than likely probability of encountering a dot along any line parallel to the stripe direction within a distance less than the width of the stripe.

Abstract: A lumber end sealing machine involves a pass-through design utilizing a single exhaust system and the use of traveling and rotating sealer paint spray guns. An exhaust chamber is centered over the conveyor with spray guns located at both the conveyor entrance and exit openings of the exhaust chamber. The spray guns are formed to both transversely and rotatingly pass through an end face of the package of lumber which is stopped at the center of the exhaust system. The spray guns are supported on a vertical rod suspended from a carriage with transverse movement through the use of a pneumatic rodless piston and rotational movement of the spray guns by rotation of the vertical rod by means of a cam follower mechanism engaged with a curved profile bar.

Abstract: A coating hood for applying uniform protective coatings to glass containers, while minimizing the escape of noxious fumes from the hood to the ambient atmosphere, which includes a pair of spaced side walls having inclined end surfaces adjacent the entrance and exit ends to reduce the amount of stagnant ambient air thereat; coating air supply slots in the side walls for supplying process air to the containers; and finish air supply slots positioned at a height above the coating air supply slots for supplying coating free air.

Abstract: An improved process for producing a photographic material in which an assembly of superposed liquid photographic layers is coated onto the surface of a moving base support in such a way that the properties of the liquid photographic layers being coated are evaluated by their dynamic surface tensions.