Abstract: An applicating-device for use in coating a strand comprising a die assembly of two elements having contiguous flat surfaces which are securely laminated together, this die assembly having a bore through both elements which is of essentially uniform diameter through one of the elements and tapered through the other. The one element is of polycrystalline synthetic diamond material and the other element is of carbide material. The other surface of the polycrystalline element is flat and parallel to the aforesaid contiguous flat surfaces. The assembly is in two semi-circular halves which are abuttingly engaged along a plane which diametrically divides said bore. The method comprises cutting a laminated disc into halves along a diameter thereof, this disc being of two laminations, one of these being of polycrystalline diamond material and the other of carbide material. The two halves are assembled into a disc assembly and a coaxial bore is formed therethrough.

Abstract: A nozzle used in the coating of optical fibers with a protective resin layer comprises an aluminum body split into two symmetrical halves with cavities which upon assembly form a frustoconical funnel terminating at its narrower lower end in a coaxially converging outlet port. The cavities are machined in solid aluminum blocks whereupon each block is anodized in sulfuric acid to form thereon an abrasion-resistant oxide layer with few, small pores which may be sealed by an aftertreatment in hot de-ionized water.

Abstract: A process of applying and drying a liquid lubricant on a metallic material to be mechanically worked has the steps of passing a metallic material through a coating container with a lubricant so that the lubricant coats the metallic material and the latter exits from the coating container through an opening, removing the superfluous portion of the lubricant without contacting the same with outside air, and advancing the lubricant coated metallic material through a drying channel in which air is urged in disturbed state. An arrangement for performing the method is also provided.

Abstract: A novel method and apparatus for manufacturing magnet wire in a continuous process by which coatings of a flowable resin material may be applied concentrically to a moving elongated filament in thicknesses of about 16 mils or less. The filament can be a bare copper or aluminum conductor having round or rectangular configuration or an insulated conductor upon which a top or an intermediate coat of material is desirably applied. Coatings of one and two mils also can be applied by the method of the invention. By the method and apparatus of the invention, magnet wire can be manufactured by continuously drawing the wire to size, annealing the wire, if necessary, insulating the wire with one or more coats of flowable resin material, curing the resin material, if necessary, hardening the resin material, and spooling the wire for shipment, without interruption at speeds limited only by the filament pay-off and take-up devices used.

Abstract: A method and apparatus for forming an electrically conductive layer on a corrosion-resistant layer which covers a cable. The cable is passed through a powder accumulating tank in which are mixed an electrically conductive powder and binder powder so as to allow the mixed powder to initially adhere to the surface of the cable. The mixed powder is then pressed against the surface of the cable first at a cable outlet of the powder accumulating tank and then with a powder applying device in which an endless powder applying belt or cloth is rotated around the cable at a rotational speed dependent upon the linear speed of the cable. The surface of the cable is then heated to melt the binder powder and cause the electrically conductive powder to yet more firmly adhere to the surface of the cable. The cable is then cooled and wound.

Abstract: A pad for the wiping of coated wire or strip and a method of forming such a pad. The pad includes a compressed non-combustible, alumino silicate fibrous material.The method of forming the pad wiping material includes compressing such an alumino silicate fibrous material into a pad by the application of pressure in the range of 7 to 20 tonnes per square inch.

Abstract: The present invention embraces apparatus for the production of mineral fibers such as glass fibers. In particular, the apparatus comprises a guide member for gathering filaments into side-by-side strands wherein the guide member has a locating hole and support means for holding the guide member normal to the side-by-side strands. The support means comprises a supporting member, a pin member extending upwardly from the support member for positioning the guide member thereon at the locating hole, and an adjustable member extending from the support member and adapted to support the guide member so that the guide member is held above the support member by the pin and the adjustable member.

Abstract: The exterior wall of an inflated flexible tubing is moved through an inner opening of a first flexible and resilient means and displaces the opening edge while liquid is applied by rubbing contact. The liquid coating is then smoothed by movement through the inner opening of a rotating second flexible and resilient means.

Abstract: Apparatus for dusting articles such as electrical cables with a powder such as talc, to prevent the articles sticking together, comprises means for agitating powder in a chamber and means for conveying powder-laden air from the chamber to a dusting nozzle.For efficient dusting of an article, it is important that a constant uniform flow of powder-laden air is conveyed to the dusting nozzle.A fluidized bed of dusting powder is created by a fan creating an air flow up through a permeable screen. A conveying nozzle receives some of the air flow, being positioned close to the screen, and comprises a convergent portion which accelerates the flow of powder-laden air to transport it to a discharge portion of the nozzle.

Abstract: Method of and apparatus for manufacturing optical fibers in which a preform is heated in a furnace which is provided with a graphite heating element and a fiber is drawn from the heated preform. The fiber is subsequently cooled, provided with a coating, and, after drying of the coating, the fiber is wound onto a reel.For applying a coating to the fiber, the fiber is passed through a nozzle which has a polygonal nozzle opening.

Abstract: A method of coating an optical waveguide filament employing a die body having an at least partly tapered central aperture and radial means for introducing coating material to the central aperture is disclosed. The method includes exposing the optical waveguide filament to the coating material within the tapered aperture of the die body. The die body and an apparatus for coating the filament is also disclosed.

Abstract: An apparatus for coating vertically extending wires with paint in which the temperature of a paint bath is accurately maintained and temperature variations within the bath are largely eliminated so as to provide constant coating characteristics. Vertically extending coating chambers are provided having relatively small cross-sectional areas so that heat generated by an adjacent heating element is spread evenly throughout the paint bath. A coating die is disposed at the top of each chamber. A discharge element is provided near the coating die and a paint receiving pool is stationed to receive the paint discharged through the outlet. The paint pool is in fluid communication with the bottom portion of each of the chambers.

Abstract: An apparatus and method for applying a uniform coating of liquid solder to a flat tube particularly at and adjacent to the side edges of the tube. The apparatus has spaced heated platens comprising shaping die members located opposite to each other and including tube embracing recesses forming a slot through which the liquid solder coated tube is passed. The disclosure also includes spacing means for spacing these die members apart a distance equal to the width of the coated tubes and yieldable means such as springs urging the spaced heated platens toward each other to bear against the side edges of the tube together with means for drawing the coated tube between the heated platens and means for heating the platens in the vicinity of the tube to a temperature above the melting point of the solder as well as passages permitting draining of excess solder from the tube during its passage between the heated platens.

Abstract: An apparatus for applying a relatively thin uniform thickness layer of a fluent coating material to each of a plurality of conductors includes a housing having aligned entrance and exit openings. An applicator tube is mounted within the housing transverse of the paths of the conductors and includes a plurality of spaced applicator openings through which the conductors are advanced. The tube is arranged so that each applicator opening includes aligned notches in front and rear walls of the tube and a slot in the top of the tube, the slot connecting an aligned pair of notches. The fluent coating material is supplied to the tube and is maintained at a level substantially at the top of the tube so that as the conductors are advanced through the applicator openings they are immersed in the coating material.

Abstract: An apparatus and method for applying a uniform coating of liquid solder to a flat tube particularly at and adjacent to the side edges of the tube. The apparatus has spaced heated platens comprising shaping die members located opposite to each other and including tube embracing recesses forming a slot through which the liquid solder coated tube is passed. The disclosure also includes spacing means for spacing these die members apart a distance equal to the width of the coated tubes and yieldable means such as springs urging the spaced heated platens toward each other to bear against the side edges of the tube together with means for drawing the coated tube between the heated platens and means for heating the platens in the vicinity of the tube to a temperature above the melting point of the solder as well as passages permitting draining of excess solder from the tube during its passage between the heated platens.

Abstract: Disclosed is an applicator for the application of liquid to webs and methods of using it. A web-guide path is defined through the applicator and has an intermediate enlargement. One or more inlets and one or more outlets are provided at the exterior of the applicator and at the enlargement respectively, which are part of a closed passageway system for the supply of liquid to the enlargement. A slit-like passageway system affords passage of web to the enlargement. An exit passageway with one outlet affords passage of web, to which liquid has been applied, from the enlargement out of the applicator. Means are provided for changing characteristics of the exit passageway whereby selectively to influence the application of liquid to the web. By using such an applicator in which provision is made for changing the size or shape, or both, of the exit passageway, considerable control may be exercised over both the degree of impregnation of the liquid into the web and the thickness of liquid coating on the web.

Abstract: The invention relates to a D.C. casting assembly having an inflatable, rubber-like collar near the discharge end of the mold for removing coolant from the surface of the solidified metal. The collar, which surrounds the metal exiting from the mold is initially deflated to allow the large butt of the ingot or billet to pass through without contact and then inflated to effect contact with the ingot or billet and thereby remove coolant.

Abstract: Apparatus is provided for supplying a liquid to an advancing strand comprising: a frame; first actuator means associated with said frame; a first element mounted on said frame, said first element having a port adapted to supply said liquid to said strand; a member mounted on said first element; a second element fastened to said member, said second element being spaced from said first element, said second element having a port adapted to supply said liquid to said strand; a third element journaled at said member, said third element being spaced from said first element and said second element; and second actuator means associated with said first actuator means, said second actuator means being fastened to said third element, said first actuator means and said second actuator means being adapted to move said strand such that said strand does not contact said liquid supplied at said port of said first element when said member is in a first position, said second element being positioned such that said strand does

Abstract: The invention relates to apparatus and a method for producing a coated film in which a cooled polymeric tubular extrudate is coated, reheated and inflated to yield an oriented, coated tubular film. The apparatus includes a coating head comprising a rotatable assembly including a support member [13] providing an orifice [14] through which the tubular extrudate may be fed, a plurality of spreading members [19] spaced-apart around the orifice, mounting means [15] for each of the spreading members operatively associated with the support member and displaceable relative thereto, and means [21] for biasing each of the spreading members into engagement with the tubular extrudate. Liquid coating medium is suitably deposited on the extrudate from a spray assembly, and the coating asembly is rotated around the extrudate thereby spreading and polishing the deposited medium to yield a uniformly coated film.

Abstract: A method of wiping hot dipped metal coated wire or strip, and an apparatus for performing the method, involving drawing the wire or strip upwardly from a bath of molten metal through a wiping bed located at the point of emergence from the bath, with an interference device being positioned adjacent the wire or strip below the surface of the molten bath such as to restrict the lamella flow of molten metal entrained by the moving wire or strip. The interference device wholly or partly surrounds the wire or strip and is located below the wiping bed, which bed in turn may be laterally confined or unconfined. The interference device may be of any convenient configuration such as in the form of a horizontally disposed flat plate provided with one or more slots, grooves or other apertures through which the wire or strip passes.

Abstract: A method and apparatus for galvanizing galvanizable metal in a wire-like form. A descaled wire or the like is passed vertically and upwardly through a transversely flowing stream of molten zinc after which the so-coated wire or the like is either passed into a second processing zone or is passed through a shaping orifice, or both, as desired. The resulting so-processed wire is then cooled preferably by quenching in a flowing water bath.

Abstract: In the manufacture of hose, a tubular textile is passed through one or more coating liquids, such as rubber or synthetic resin. An expander means, having a plurality of panels disposed radially about a shaft element so as to form a generally annular surface, and adapted to be centrifugally or centripetally movable by means of a spring mechanism mounted on said shaft, is disposed seriatim with the coating baths and are located within the tubular textile whereby to expand the coated tube during passage through drier means. Annular doctor means are disposed in operative association with said expander means and externally of said coated tube.

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: A method of preparing resin sheets reinforced by glass and carbon strands is described in which the glass strands are passed through a resin bath. The glass strands are passed through a die as they emerge from the bath to control their resin content and wound on a mandrel. The carbon strands are passed directly into the die and are wetted by the resin in the die and on the mandrel. The glass and carbon strands are laid on the mandrel with resin to provide a resin sheet containing 5 to 70 percent glass by weight and 60 to 5 percent carbon strand by weight.

Abstract: A glass fiber is drawn through a rotating body of flowable coating material to apply the material thereon and then is further drawn through a throat section of an open ended cage formed by a plurality of wire strands forming a hyperboloid of rotation. As the glass fiber is drawn through the throat section the previously applied flowable material contacts the wire strands causing a vortex of material which centers the fiber in the throat and distributes the material uniformly and concentrically thereon.

Abstract: A die coating apparatus for applying coating solution onto materials such as wires. The apparatus includes a radial bearing in a position adjacent and prior to a floating die with respect to the advancing direction of the material to be coated, so that the material to be coated after having passed through the coating solution is passed through the radial bearing before advancing into the floating die. Thus, the undesirable lateral vibration of the material to be coated at the floating die is prevented and a coating film of uniform thickness is obtained on the material to be coated.

Abstract: A glass fiber is drawn through a rotating body of flowable coating material to apply the material thereon and then is further drawn through a throat section of an open ended cage formed by a plurality of wire strands forming a hyperboloid of rotation. As the glass fiber is drawn through the throat section the previously applied flowable material contacts the wire strands causing a vortex of material which centers the fiber in the throat and distributes the material uniformly and concentrically thereon.

Abstract: A die for impregnating yarn is provided with a die insert having a minimum inside diameter. An inlet duct opening into the die has walls with length L, the walls sloping at an angle within the range of from about 5 degrees to about 25 degrees. The length of the inlet duct is within the range of from about 10 to about 25 times the minimum inside diameter of the die insert. The maximum diameter of the inlet duct is within the range of from about 15 to about 35 times the minimum inside diameter of the die insert.

Abstract: In a machine for coating wire with organic enamel, especially solventless enamel, an applicator (3) is placed at the top of a baking oven (5) and the wire (1, 7) passes downwardly through the applicator and oven. The applicator unit preferably forms part of the closure of the top end of the baking chamber. In an oven providing for a number of upward and downward passes of the wire, further applicators may be provided below the bottom of the oven to coat the upward passes.

Abstract: This is an apparatus for continuously applying a reinforced insulated coating to a conductor. The apparatus includes a die which provides means of directing a first coating, a reinforced fabric and a second coating to the conductor continuously in the proper sequence.