Abstract: In a process for intermittently spraying a setting pasty composition mixed with a tempering liquid, in particular for building up refractory linings of metallurgical vessels, the composition is conveyed from a preparing station (6) at which it is prepared, to a delivery nozzle (11). In order to prevent the composition from thickening or hardening in the duct (15) leading to the delivery nozzle (11) when delivery is interrupted, it is conveyed during delivery stops in a circuit that includes the delivery nozzle (11).

Abstract: A method for making a dispenser-package for holding a small quantity of fiber-optic coating material and for use in applying same to a fiber optic.The sealant or coating material is introduced into container with a hypodermic needle.

Abstract: A machine for applying tire paint and tire sealant to recapped tire sidewalls and interiors, respectively. The machine includes a pair of tire paint applicator pads which are carried by a frame and carriage capable of reciprocal motion in three different directions to bring the applicator pads into selective engagement with tire sidewalls. The machine also includes spray nozzles carried by an associated frame and carriage for bringing the nozzles into a position to direct tire sealant into the interior of an associated recapped tire.

Abstract: A multi-layer coating method in which a first layer is first applied to a moving web and is allowed to partially dry before a second layer is applied as a freely falling coating composition film.

Abstract: A fluid distribution bar, such as for applying a liquid or other fluent medium to a tumbling bed of material to be coated, has concentrically mounted inner and outer tubes in the described embodiment. The inner tube has a plurality of outlets along a length of the tube which are alignable with corresponding openings formed in the outer tube by relative movement of the tubes. A plurality of slidable seals each corresponding to an inner tube outlet are mounted in the interior of the outer tube to overlie and seal the inner tube outlets in a first position, with the relative movement of the tubes unsealing the outlets in a second position for fluid distribution. The described embodiment uses seals comprising an elongated flexible resilient sealing strip mounted at each end in apertures formed in the outer tube such that the flexible strips are elastically deformed to slidably bear against the exterior surface of the inner tube for a good sealing engagement.

Abstract: Plastic containers are given a coating of barrier or other coating material by being passed in close proximity to the lower edge of a plate curved downwardly. Liquid coating material is delivered to the back of the plate, to spread over it and fall as a curtain through which the article is passed, the article being rotated to present the whole of its recipient surface to the curtain. The articles may be tilted as they pass through the curtain.

Abstract: An apparatus for coating the internal surfaces of pipes comprises two pigs which engage against the internal pipe surfaces and are movable through the pipe, and which define an intermediate zone therebetween for receiving the coating material. A spraying device capable of spraying material in the radial direction is connected to the intermediate zone via a material feed line. Upon being drawn through the pipe, the coating material is fed to the spraying device which atomizes the material and conveys it to the internal surfaces of the pipe.

Abstract: Method and apparatus for applying a flow of insulating material such as silicone to predetermined locations on printed circuit boards to avoid damaging the components on the circuit boards, such as solenoids and buzzers, whose functions will be impaired by the application of such material thereto. The apparatus is comprised of a pump which delivers a flow of insulating material to a manifold, the manifold having a plurality of lengths of flexible tubing attached thereto which serve as nozzles for dispensing the flow of insulating material. A printed circuit board is mounted on a conveyor and the conveyor is advanced until the printed circuit board is under the manifold, at which time the manifold is lowered to place the nozzles in close proximity to the printed circuit board so that the flow of insulating material will be directed to predetermined locations on the printed circuit board. The flexible nozzles are selectively positioned to direct the flow to those predetermined locations.

Abstract: Coating apparatus for coating a cable with bitumen which is self-contained except for apparatus for supplying a heated fluid to the coating apparatus. The coating apparatus includes a tank for receiving bitumen and has pipes therein to which heated fluid at a temperature sufficient to melt solid bitumen is supplied by external fluid heating apparatus and in which the heated fluid circulates. The cable passes through the apparatus in a trough to which liquid bitumen is supplied by a rotating cylinder partially immersed in the liquid bitumen and connected, for liquid bitumen delivery, to the trough by a pivotable chute. A tiltable cradle receives solid bitumen and dumps it into the tank where it is melted. A wiper in the form of a tensioned, elongate elastic body is wrapped by at least one turn around the cable where it leaves the coating apparatus and an elastic tab engages the cable adjacent the cable inlet to divert liquid bitumen which may flow toward the inlet.

Abstract: A method for the application of highly absorbent material onto a moving substrate includes the steps of dispensing a melt adhesive film onto precisely defined areas of the substrate, covering such areas with the absorbent material and then removing excess absorbent material which did not adhere to the adhesive coated areas. The apparatus for practicing this method includes, in one embodiment, an adhesive applicator head operable to dispense the adhesive at timed intervals onto the moving substrate, a measuring head located downstream from the applicator head and timed to release the absorbent material over the adhesive covered areas moving past and a vacuum or mechanical cleaning device for removing excess absorbent material from the substrate. In an alternative embodiment, the measuring head is replaced with a receptacle containing absorbent material within which the substrate is immersed for coating the adhesive covered areas.

Abstract: A method for depositing composite metallic coatings on a metallic strip, involves bringing in contact with a metallic coating, deposited on the strip by using a continuous dip coating method, before setting of the metallic coating, an additive metal powder in suspension in a gaseous jet. The melting point of the additive metal powder is higher than that of the base coating metal, so that the additive metal powder particles penetrate into the coating in order to obtain a composite structure imparting to the strip an increased corrosion resistance, compared to that provided by a base coating free from additive metal.

Abstract: A soldering technique is provided especially for printed circuit boards wherein a bath of solder assisting fluid such as non-ionic surface active agent is superposed on a bath of solder. In one form, the workpiece is passed through the bath of solder assisting fluid and solder is pumped from the bath of solder to a trough whereat the solder is cascaded onto the workpiece. In another form, the workpiece is passed downwardly through the bath of solder assisting fluid into the bath of solder for the application of solder to the workpiece. Thereafter, the workpiece is withdrawn from the bath of solder through the bath of solder assisting fluid. In both instances, while the workpiece is still within the bath of solder assisting fluid, jets of this fluid are played against the workpiece to control the thickness of the solder which is allowed to remain on the workpiece.

Abstract: A die assembly is provided which is suitable for the extrusion coating of elongate cores, such as optical fibers. The die assembly comprises a nozzle having an orifice therethrough. A die tip has a through-bore and is mounted such that the through-bore is alignable with the orifice to conduct a core through the through-bore and orifice. A passage is arranged for conducting a flowable coating material into and through the orifice. A hollow guide tube is slidably mounted in the through-bore and is sized to receive the core. The guide tube is positionable such that the forward end thereof is movable relative to the nozzle orifice.

Abstract: A method and apparatus are disclosed for enrobing frozen novelty confectionaries, such as ice cream products. The products are passed beneath a waterfall of the enrobing material, with the conveying mechanism separating rows of confectionaries and aligning them with dams in the waterfall to avoid covering the stick portion of the novelty. Conveying apparatus for the novelties is also disclosed.

Abstract: A seed coating machine comprising an upper mixing drum wherein a liquid adhesive coating is applied to seed and where the rate of application is regulated by a valve controlled by the seed feeder. Coated seed is dried to a state of tackiness and passed to a second, lower mixing drum. A variety of powders are applied onto the tacky seed after being mixed and sifted in a screen distributor. The resulting coated seed has an outer powder layer which adheres to the inner adhesive coating.

Abstract: An apparatus and method in which a coating is wetted with a solvent to initiate dissolution of soluble coating portions and the hydraulic pressure of the solvent at the surface of the coating is repeatedly increased and decreased to assist in the dissolution of the soluble coating portions. A brush with an array of bristles reciprocating in a path perpendicular to the coating may be utilized to produce the increasing and decreasing hydraulic pressure. Also, the coating may be immersed in the solvent to wet it and to initiate dissolution of the soluble coating portions.

Abstract: Reinforced facings, including reinforcing webs entrained in hydraulic cement via a slurry bath, adhere to a nailable lightweight aggregate cementitious core to form a panel web. The reinforced web is formed on abutting conveyed carrier sheets, and the web is transversely cut, between the sheets, while moving or when stopped, in response to sensing of the sheets. The cut panels, on respective sheets are stacked for curing without damaging the panel edges and in a manner to minimize panel flex. Slurry bath, facing applicators, and cutter and stacking apparatus are included.

Abstract: A method of surface treatment and an apparatus used in said surface treatment are provided in the present invention.Said method comprises dipping a surface-to-be-treated of an article in a treating liquid, moving said article in said treating liquid, letting the treating liquid flow in the reverse direction against said moving, spraying the treating liquid on the surface-to-be-treated of the article before and/or during said dipping and gush-spraying the treating liquid on the treated surface after said dipping; and said apparatus comprises a tank filled with a treating liquid, spraying tools arranged above and/or in said treating liquid in the front part of said tank, means of overflow formed in the front end of the tank, a container receiving the treating liquid overflowing from said means, a path recirculating the treating liquid from said container to the tank and a spraying tool arranged in the rear part of the tank.

Abstract: Apparatus for safely transporting a sheet of photographic material through a development or other processing station comprises means for concurrently circulating processing liquid in the form of a plurality of streams both downward onto the sheet and upward from an underlying plate, the latter streams supporting the sheet and providing for the formation of a liquid layer between the plate and the sheet which facilitates the unrestricted passage of the sheet along the processing path. The downwardly projected streams are angled in the direction of sheet travel to provide further impetus to the movement of the sheet.

Abstract: The surface treatment is carried out by employing an apparatus comprising a vessel and a holed container rotatably equipped in said vessel.Materials to be treated are filled into said holed container of said apparatus then treating liquids and/or washing liquids are charged in order into said holed container according to the treatment process and said holed container is driven to rotate thus treating liquids and/or washing liquids contact whole surface of said materials and the treatment is carried out. After the treatment, treating liquids and/or washing liquids are effectively removed from the surface of said materials by the centrifugal force accompanying with the rotation of said holed container.

Abstract: Magnetic apparatus for dispensing toner of an electrophoretic printer having a hopper fed magnetic brush in conjunction with an active or passive magnetic backing plate is disclosed for transferring a uniform layer of toner to a transfer surface or belt for high speed printing purposes. The magnetic apparatus includes a magnetic roller having an inner magnetic surface and an outer cylindrical surface disposed in magnetic relationship to the toner and opposite one side of the transfer surface. The apparatus further includes a magnetic backing plate disposed opposite the other side of the transfer surface and juxtaposed to said magnetic roller for transferring the toner to the transfer surface.

Abstract: Investment casting mold forming apparatus including a vertically extending housing (10) having a top (22), a bottom (28) and an access opening (20) intermediate the top and the bottom, a diffuser (26) within the housing below the opening and above the bottom, a pressure fluid inlet (32) in the housing between the bottom and the diffuser for providing fluid so that a fluidized bed and particulate material may be generated above the diffuser, and a distributor (50,52,60) introducing particulate material into the housing at its top and above a fluidized bed therein such that the particulate material so introduced may descend, by gravity, within the housing towards the fluidized bed.

Abstract: Apparatus and a method for the selective conditioning, wetting and coating of particles with a selective wetting agent. The apparatus includes a horizontally extending surface capable of vibration which vibration induces uniform translatory movement along the surface to particles upon the surface. A vertically extending barrier is on the surface and extends across the surface and at right angle to the direction of movement of particles upon the surface. A means for spraying the selective wetting agent onto the particles as they move along the surface and before they reach the barrier is provided. Means for removing excess wetting agent are provided on the surface along the direction of movement of the particles after the barrier. A pool of the selective wetting agent forms behind the barrier upon the surface.

Abstract: An apparatus for the treatment of timber comprises a vessel having at least three chambers arranged in series for passage of the timber therethrough on conveyor belts or the like. There is means for drawing a vacuum in each of the end chambers and means for spraying the timber with a preservative liquid in an intermediate chamber, the vacuums being maintained during passage of the timber through the end chambers, by means of seals which are arranged to close and open automatically as the timber enters and leaves the respective vacuum chambers.

Abstract: An automobile body is prepared for painting by suspending it roof uppermost from movable conveyor means and moving it first past spraying means which sprays the body at high energy with a phosphate solution so as to initiate a fine crystalline deposit growth on the exposed body panels. The body is then moved roof uppermost into and along a tank containing a flowing stream of phosphate solution, in which it is immersed to a level about that of the window openings. During this movement, a static head of phosphate solution is created in the body so as to generate a flow of the solution from the interior to the outside of the body by flooding the solution under pressure through the window openings. Crystalline deposit growth over the unimmersed upper portion of the body is sustained by spraying the upper portion with phosphate solution.

Abstract: Flexible core such as rubber rod useful as an internal mandrel in the construction of tubular articles, such as hose, is coated with a liquid lubricant substantially undiluted with solvent, and excess lubricant is removed using high pressure liquid spray jets impacting the core angularly and countercurrent to the direction of movement of the mandrel.

Abstract: An improved apparatus and process for imparting durable flame retardancy to textile materials wherein said material is impregnated with a solution having a poly(hydroxymethyl) phosphonium cation content of from about 10 to about 60 percent by weight, dried to a moisture content of from about 0 to about 8 percent, aerated by passing air through the dried material, cured by polymerizing the monomer on and in the textile material with exposure in an enclosed chamber to an atmosphere containing gaseous ammonia and thereafter contacting with water, the improvement comprising, impregnating said material with said solution containing poly(hydroxymethyl) phosphonium cation having a pH of from about 2 to about 9, and after contacting said material with said water, further exposing said material to an atmosphere containing gaseous ammonia.

Abstract: Drum-type continuous washer for small parts in manufacture, e.g., fasteners. The parts, requiring oil and other soil removal, are tumble-washed therein, in steps in order: at an immersion station for tumbling the soaking parts in hot washing liquid; at a liquid-impingement station for loosening and spraying off the wetted soils by the force and cleaning action of impinged, hot sprays of continuously recycled washing liquid; at a drip-dry station for tumbling off excess liquid from within and without the individual tumbling parts, leaving them wet and hot; at a blow-dry station for rendering the hot parts damp by means of compressing and blowing-on hot, recycling-steamy atmosphere drawn from the process and preferably containing rust-inhibitor coating material; and at an evaporative dry (final dry) station for discharging the cleaned, hot, rust-proofed parts essentially moisture-free by flash drying.

Abstract: An apparatus for edulcorating a wire coil with an edulcoration fluid is provided which has a movable cart with an upright support and a plurality of horizontal, rotatable flanged shafts for supporting and rotating the wire coil, these shafts being mounted on the upright. A hollow pipe with outlets is positioned beneath the rotatable shafts on the upright to provide edulcoration fluid against the inside of a coil on the shafts, and a plurality of hollow pipes with outlets, also connected to the upright, are positioned above the rotatable shafts for providing edulcoration fluid against the outside of the coil on the shafts. The flanges on each of the shafts are at an angle to the axis of the respective shaft and are positioned in a special spaced relationship with regard to the flanges on the adjacent rotatable shaft.

Abstract: An improved apparatus and process for imparting durable flame retardancy to textile materials wherein said material is impregnated with a solution having a poly(hydroxymethyl) phosphonium cation content of from about 10 to about 60 percent by weight, dried to a moisture content of from about 0 to about 8 percent, aerated by passing air through the dried material, cured by polymerizing the monomer on and in the cellulose material with exposure in an enclosed chamber to an atmosphere containing gaseous ammonia and thereafter contacting with water, the improvement comprising, impregnating said material with said solution containing poly(hydroxymethyl) phosphonium cation having a pH of from about 2 to about 9, and after contacting said material with said water, further exposing said material to an atmosphere containing gaseous ammonia.

Abstract: A layer of plastics material is applied to at least one selected surface of a metal article by a method in which the article is heated and positioned in such a way that the selected surface or surfaces is or are lowermost; a table having an upper surface or surfaces carrying a layer of powdered plastics material, said carrier surface or surfaces of the table being of a shape and area such that the surface or surfaces will wholly underlie the selected surface or surfaces of the article, is raised upwardly beneath the article to urge said carrier surface or surfaces against the overlying selected surface or surfaces and so transfer powder from the carrier surface or surfaces to the selected surface or surfaces; and the powdered material adhering to the selected surface or surfaces is permitted or caused to coalesce and form a plastics layer on the or each surface.

Abstract: Following conventional pretreatment and background dyeing and washing of a carpet web, an applicator means applies a thick viscous gum coating to the pile face of the web, forming a temporary barrier thereon. Conveyor means is provided to transport the coated carpet web horizontally through a liquid dye dripping or splattering station where multiple interrupted syrupy dye streams fall on the temporary barrier and form thereon dye pools and rivulets of irregular shape, size and spacing. The conveyor means continues to transport the carpet web with the barrier coating and dye thereon horizontally into a steamer where the barrier layer dissolves and settles into the carpet pile with the dye to establish a random irregular color pattern. Fixing of the dye also takes place in the steamer. The apparatus has final washing and drying means of a conventional character beyond the steamer. Pin driving rolls for the carpet web are electrically coordinated to maintain a regulated tension on the web at all times.

Abstract: The invention relates to a machine for cooling metal wire. This machine comprises a cooling tube, an injection device for the cooling fluid and a bypass device for the cooling fluid. The injection device comprises an oblique annular slot fed under high pressure and injectors fed under low pressure. The bypass device comprises an open elbow extending the tube and a second elbow of an opposite curvature terminating in a direction normal in relation to that of the wire. The invention is applied to the cooling of a metal wire, with or without hardening.