Abstract: The invention relates to a method of lubricating warp yarn ends arranged in sheet form (W) on the dry side of the drying process (16) as part of the process of preparing a loom beam (22) on a slasher. The method comprises providing a pair of rotating porous lubricating rods (40, 42) arranged on a frame (44, 46) attached to a frame portion (88) of the slasher. The rotating porous rods are provided in the form of a hollow rod having an after lubricant surface (B), an inner lubricant distribution layer A, and a boundary region (32) in which a flow control membrane (C) is formed. The above described construction provides a highly accurate flow control and metering of the lubricant from the interior of the rod outwardly to the application surface.

Abstract: The present invention discloses a felt applicator for applying a solution of lubricant to magnet wire, the applicator having at least one surface sealed to prevent the premature evaporation of the lubricant solvent during its passage through the applicator from the reservoir to the wire, resulting in more uniform distribution and quantity of the lubricant about the substrate.

Abstract: A device for application of lubricant liquid to a yarn on double twister comprising a rigid porous wetting member disposed in a part of the yarn passage through which the yarn drawn from a feeding package passes and adapted to be in contact with the drawn yarn, a tank for reserving lubricant liquid to be applied to the yarn, and a plurality of wicks immersed into lubricant liquid in the tank at one end and brought into contact with the wetting member at the other end.

Abstract: The invention relates to a method of lubricating warp yarn ends arranged in sheet form (W) on the dry side of the drying process (16) as part of the process of preparing a loom beam (22) on a slasher. The method comprises providing a pair of rotating porous lubricating rods (40, 42) arranged on a frame (44, 46) attached to a frame portion (88) of the slasher. The rotating porous rods are provided in the form of a hollow rod having an after lubricant surface (B), an inner lubricant distribution layer A, and a boundary region (32) in which a flow control membrane (C) is formed. The above described construction provides a highly accurate flow control and metering of the lubricant from the interior of the rod outwardly to the application surface.

Abstract: An apparatus and method for sizing warp yarn utilized in preparing a loom beam for weaving are disclosed. A porous application roll (A) is utilized for applying a sizing material onto a sheet of warp yarns (12) passing between a pressure roll (30) and the application roll. The application roll includes a continuous cylindrical porous application surface (B) formed around the entire periphery of the roll having an extent at least as great as the warp yarn sheet width. An intermediate porous distribution layer (C) is provided next to the application surface (B) for disbursing the sizing material onto the application surface. A porous flow control membrane (D) having a pore size less than that of the distribution layer occupies a boundary region for metering the sizing material. When the passage of warp yarns is discontinued, the application roll (A) is moved to an idle position by an actuator (38). In the idle position, liquid (72) is made to contact the application surface to maintain it in a moist condition.

Abstract: A lubricant applying device for use in a two-for-one twister, which is mounted on a tenser and is provided with a lubricant applying means on a face thereof contacting with a yarn taken out from the yarn supply package and running through the yarn guide tube. The device comprises a hollow container for reserving a liquid lubricant therein and a cap mounted on the upper portion of the container having a lubricant applying means provided on an outer face of the cap.

Abstract: Apparatus and a method for dispensing a solution for use in a process including a flow meter and a precision valve are disclosed. A solenoid valve is incorporated within the dispensing apparatus and is electrically connected to the process for preventing flow during process interruption periods. Additional alarm means and safety interlocks are provided for controlling flow based upon operating conditions of the process.

Abstract: An advancing optical fiber (22) is marked with a plurality of spaced indicia along its longitudinal axis. The indicia are applied by an applicator wheel (56) in the form of a disc which is mounted for rotation about an axis which is transverse to the path of travel of the optical fiber. The wheel has a plurality of marking teeth (70-70) arranged about its periphery with each tooth provided with a groove (72) for receiving increments of length of the optical fiber as it is moved rotatably. As the wheel is turned, each tooth in seriatim compresses a porous, resilient pad (80) which is disposed to one side of the wheel in a chamber through which the optical fiber is advanced to cause ink from the pad to be received in the groove of each tooth. Further rotation of the wheel causes ink to be transferred from each groove to the moving fiber. The pad is supplied with ink through a tube by a peristaltic pump (90).

Abstract: The present invention is for a method of applying high solids enamel coatings to magnet wire. The method comprises reducing the viscosity of the enamel to a processable range and then applying the heated enamel to the wire via a felt applicator. The coated wire is then passed through an oven where the enamel is cured. This method provides a process for applying high solids, viscous enamels to fine magnet wire substrates without the disadvantages of solvent dilution. The result is higher quality coatings, faster processing time and reduced process costs.

Abstract: The present invention discloses a method and apparatus for applying high solids enamels to wire wherein the enamel is heated to lower its viscosity to below about 200 cps, the heated enamel is then passed through a discrete, enclosed passageway in a first felt pad. The wire to be coated is then drawn between the first felt pad and a second felt pad in contact with the first felt pad. The wire is passed substantially perpendicular and in front of the discrete passageway of the first felt pad when it is coated with the enamel. The enamel is then formed uniformly and circumferentially about the wire as it exits the felt pads and cured in a curing oven.

Abstract: An applicator for metering a desired amount of a liquid sizing onto moving glass filaments. In a first embodiment, a foam-covered roller is partially immersed in a reservoir of liquid sizing and is in contact with the smooth surfaced applicator roll. The foam-covered roller is driven in the same direction as the applicator roll and a puddle is formed above the roller/roll nip. The pressure exerted by the foam covered roller on the applicator roll and rate of rotation of the applicator roll determine the size of the puddle, which controls the amount of sizing applied to the glass filaments. A second embodiment employs an elastomeric reservoir which sits generally atop the applicator roll. A plurality of slots in the rotationally downstream side of the reservoir dispense the sizing onto the roll with the pressure between the elements and rate of rotation of the applicator roll, again, determining the application rate. The sizing is pumped through a closed loop to keep its temperature and viscosity more uniform.

Abstract: A yarn wetting device, particularly for a two-for-one twisting spindle assembly, has a reservoir and a porous member which has capillary action and over which yarn is drawn for the purpose of receiving wetting agent or the like which is fed from below by suction from the reservoir to the porous body. In order to ensure uniform transfer of the wetting agent, irrespective of the level of the wetting agent in the reservoir, a line system leads into the reservoir and has an opening which opens into the atmosphere above the reservoir and an opening located at a distance above the bottom of the reservoir, and the reservoir is sealed relative to the atmospheric pressure when the level of the wetting agent in the reservoir is above the bottom opening of the line system.

Abstract: An apparatus is provided which applies and cures a coating of viscous ink to a moving strand material. This apparatus includes an ink applicator module which comprises a series of rotatable rollers which receive and apply the ink to the moving strand. This apparatus allows substantial quantities of glass fiber waveguide strand material to thus be coated with a UV curable ink in a relatively short period of time so that they may be color coded to facilitate handling and installation.

Abstract: Resin evenly applied to the surface of rotatable drive roller applicator is worked into the fibers of a band of fibrous material one ply thick by fiber tension, without abrasion. Resin is pumped to the roller applicator through a spring loaded applicator block in sealing contact with the surface of the applicator. The resin is pumped by a piston and cylinder pump at a rate determined by the rate of rotation of the applicator roller and thereby in accordance with the rate at which the fibrous band is pulled from the surface of the roller.

Abstract: Fibre-reinforced structures comprising a thermoplastics polymer and containing at least 30% by volume of reinforcing filaments extending longitudinally of the structure which have been produced in a continuous process and which have exceptionally high stiffness. The exceptionally high stiffness results from thorough wetting of the reinforcing filaments by molten polymer in the continuous process. The thorough wetting gives rise to a product which can be further processed even in vigorous mixing processes such as injection moulding with surprisingly high retention of the fibre length in the fabricated article. The continuous processes for producing the reinforced structures employ thermoplastics polymers having lower melt viscosities than conventionally considered suitable for achieving satisfactory physical properties.

Abstract: A felt applicator including a plurality of complex slits is utilized for uniformly applying a liquid solution to a moving wire. The felt applicator has an entry slit and an angle slit extending from the entry slit such that the wire to be coated is secured at a coating position at the terminal end of the entry slit.

Abstract: Optical fibers are coated under pressure to reduce the amount of bubbles entrapped in the coating and provide good coating concentricities. The fiber is drawn axially thru a thin-walled, cylindrical flow distribution sleeve which is located between a guide die and a sizing die. The sleeve contains a plurality of evenly distributed holes the number and size of which is such that radial flow of liquid toward the fiber is maintained over the entire length of the sleeve which is less than 1.27 cm.

Abstract: An applicator for use in applying chemical treatments to textile fibers is described which does not require the presence of a reservoir of the chemical treatment in close proximity to where the textile fibers are treated. The applicator has a rotating cylindrical roll which rotates continuously during application and is in rotatable horizontal attachment with a support means. The rotating cylindrical roll contacts the filaments at one portion one roll while at another portion on the roll a delivery means having a slot and cavity to which there is provided the chemical treatment is in fluid contact with the rotating applicator roll. The chemical treatment flows from the cavity through the slot and onto the rotating applicator roll to contact the textile filaments at another location on the roll. The chemical treatment is supplied to the cavity of the delivery means by a fluid control means which provides a continuous and controlled amount of the chemical treatment to the delivery means.

Abstract: Porous metal filters are adapted for use as liquid applicators for applying a liquid additive to a continuous, multifilament filter tow in connection with the manufacture of filter rods from the tow.

Abstract: The applicator is provided in the form of a hinged box-like shell of somewhat flexible inert plastic material having opposite end walls which are slotted in an off-center manner. The body and lid of the shell each removably receive applicator pads, e.g. of absorbent material such as wool felt on which the user may apply a fishing line dressing composition. In use, the applicator is closed about a fishing line so that the line is in contact with both body and lid pads, and the segment of the line that is to be dressed is moved longitudinally relative to the applicator as compressive finger pressure on the opposite face walls of the shell is used for modulating squeezing of the line. The non-hinged sidewall of either the body or the lid is provided with a catch-equipped flange which overlaps the comparable wall of the other of the lid or the body. And the two end walls of the other of the lid and the body, are provided with slotted flanges which overlap the comparable walls of the body or the lid.

Abstract: Textile filaments are treated with chemical solutions during their manufacture and a longevous apparatus is provided to accomplish this treatment. The apparatus is a cylindrical sleeve engaged with a rotating engaging means for a substantial portion of the sleeve length and the sleeve and means are disposed to be contacted with the chemical solution contained by a receptacle. The peripheral surface of the sleeve is disposed in relation to the receptacle so that the sleeve comes in contact with the moving textile filaments. The sleeve can be a graphite, metallic or metallic coated noncorroding material. The sleeve can have a thickness ranging from a foil to a thickness which allows the sleeve to be coated with a metallic coating. The rotatable engaging means can be a noncorroding material such as stainless steel, a thermosetting polymer, graphite or rubber.

Abstract: An apparatus and a process are disclosed making it possible to mount, without disadvantages, relatively hard particles, such as diamond dust and the like, on wire-like base material in such a way that the diamond dust is not damaged, wherein any desired coating, that is, especially also a coating coherent over the length of the wire, can be produced. This coating is at least macroscopically homogeneous in character. In such a process for the application of relatively hard particles to a circular wire-like form or a wire-like form without longitudinal edges, for the purpose of producing a plain or multiple saw, the form is coated under pressure with the aid of a surface of two rolls. This surface is at least partially provided with the particles to be applied. The wire-like form is turned about its longitudinal axis during this process. The form must be present in the straight, that is stretched, condition.

Abstract: The rate at which glass optical fiber can satisfactorily be coated with a primary plastics coating by a liquid application method is enhanced by causing the fiber to enter the liquid contained in a coating vessel via a suction tube in which a partial vacuum is maintained by an air induction device. Optionally a funnel is used to deflect the exhaust away from the incoming uncoated fiber.

Abstract: A method and apparatus for applying sizing S to warp yarns W for weaving is disclosed. The method includes applying a concentrated solution having at least twenty percent solids and possibly up to eighty percent by applying the solution to the warps at the nip 22 of a pair of pressure rolls 12 and 14 where the bottom roll 14 is partially immersed in a slasher box and excess size solution is removed by means of a doctor blade 30. The warp yarns W are delivered directly to the nip. The doctor blade 30 is located downstream of nip 22 between the rollers such that there is no rollback of size at the nip and a desired add-on weight of size S is pressed into the yarns W. In a preferred embodiment, the application roller 14 has a relieved pattern surface 40 and the doctor blade 30 wipes the raised portions thereof leaving a metered amount in the relieved areas of the roll for application to the warps. Solution removed by the doctor blade rolls back to the slasher box.

Abstract: A system for preparing a composite crimped filament (2) using a nipping type false-twisting apparatus (7) which has two endless intercrossing belts (13), (16) whose working surfaces are urged against each other in their intercrossing region (17) to nip the filament yarns (2) therebetween. A liquid is applied to the yarns (2) upstream of the false twister (7) to reduce friction and heat.

Abstract: In this invention yarn finish is supplied to the yarn applicator supply pan with the level controlled by intermittent admission of air to the top of a distribution tank through an air tube which is intermittently submerged and sealed with yarn finish at the same level as the supply pan. The tube opening is located within another tube connected to the bottom of the distribution tank with a tee which also connects to the supply pan. As the level of yarn finish in the supply pan drops due to use by the finish applicator, the level in the bottom tube also drops, uncovering the opening at the end of the top tube, permitting flow of air into the top of the distribution tank, releasing an equal amount of yarn finish through the tee and conduit to the supply pan, raising the level in the supply pan and the bottom tube until the opening of the top tube is covered and sealed preventing further flow of air until the level drops again due to use by the finish applicator, repeating the same intermittent supply process.

Abstract: A finish skirt redistributes finish along the surface of the finish roll, providing extra finish to the yarn wound on the second bobbin in tandem winding, compensating for finish blotted off on the bobbin collecting the first yarn.

Abstract: Winding apparatus for the manufacture of fiberglass pipe and other filament-wound, reinforced resinous products comprises a rotatable mandrel; a vat stationed adjacent the mandrel and adapted to contain a quantity of liquid, settable resin; and a reciprocating carriage assembly supporting the vat. The filamentous reinforcing material is guided across the top of an applicator roll rotatably mounted within the vat thereby impregnating the filaments with resin. The impregnated filaments then are squeegeed and guided onto the mandrel, the rotation of which pulls the filaments through the vat. As the carriage mounting the vat reciprocates, the filaments are wound on the mandrel in a predetermined pattern to produce the finished filament-wound, reinforced resinous product.

Abstract: A portable thread dyeing kit comprises, preferably, a plurality of separate compartments each containing a liquid dye with an integral felt piece inside the compartment, the felt piece reaching into the dye and being soaked with same. Near the top of each compartment is a pair of orifices in opposite side walls of the compartment for transversely passing a needle through the container and through the respective felt piece. Accordingly, as a white thread is passed through the appropriate felt piece, the thread is dyed to the respective color. The device is extremely simple and thus inexpensive to produce as it avoids split arrangement of absorbent pads used for the same purpose in prior art.

Abstract: Apparatus for applying a thixotropic gel to fibers comprising a first block, a second block, means for holding the first block and the second block together to form a feed passage for the thixotropic gel, and an applicator roll rotatably mounted at the outlet of the feed passage such that during rotation of the applicator roll, thixotropic gel fed from the feed passage is sheared between the first block and the applicator roll to reduce the viscosity of the thixotropic gel, the applicator roll being spaced from the second block such that during rotation of the applicator roll, the thixotropic gel is not sheared between the second block and the applicator roll.

Abstract: Disclosed is an optical waveguide coating system having means for cooling the hot filament prior to the time that the filament enters the coating apparatus. The cooling means comprises an elongated container through which the filament passes. A coolant jacket, which surrounds the container, lowers the temperature of the filament cooling liquid in the container.

Abstract: An applicator for applying a size to a strand comprises a reservoir for storing the size, an applicator surface on which the strand contacts the size, and a conduit to deliver the size from the reservoir to the applicator surface as a film. Means is provided for altering the configuration of the conduit to alter the thickness of the film.

Abstract: Apparatus for the uniform treatment of thread with a treatment fluid during the winding of the thread on a cross-wound bobbin or the like driven at a constant rotational speed while the speed of the thread is increasing constantly, said apparatus comprising a treatment roller, the lower portion thereof dipping into a bath of the treatment fluid, and two thread guides. The first guide is stationary, the second is movable in a direction parallel to the axis of the treatment roller in response to the speed of the thread, the thread being stretched therebetween and lying against the periphery of the treatment roller. The roller, which is driven at a constant rotational speed, has a cylindrical first section and a second section comprised of a plurality of truncated cone surfaces; a plurality of radially disposed and axially extending small passages on the second section forming grooves having a depth of zero at the border of the cylindrical section and increasing over-proportionally to the groove length.

Abstract: A method for space dyeing yarn wherein a rapidly advancing yarn is intermittently deflected into and out of a nip of a pair of rotating dye applicator rollers, such that those portions of the yarn which pass through the nip are subjected to a rapidly applied and substantial compressive force in the nature of a hammer-like impact in the nip, to cause the dye carried by the rollers to deeply penetrate into the yarn. In the illustrated embodiment, the yarn is advanced past a plurality of such pairs of dye applicator rollers, and an external pattern control acts to deflect the yarn into and out of the various nips in accordance with a predetermined program.

Abstract: Apparatus for applying liquid to filaments that are advanced at high speeds having an open topped container for holding the liquid that is to be applied to the filaments. A rotatable applicator member located so as to transfer liquid from the container to the filaments passed across the member. The member being mounted so that a portion of its axial surface is immediately adjacent the upper edge of the open topped container on the side of filament travel. Means for moving the container with respect to the member so as to modify the spaced relationship between the upper edge and the axial surface to keep a spacing sufficiently close to discourage disruptive air flow into the container from air movement caused by high speed filament travel.

Abstract: An apparatus for gathering individual glass fibers into spaced apart strands is disclosed. The individual fibers, during formation are passed over an applicator which applies a lubricant to the fibers. A circular cylindrical bar member, at an oblique angle to the application surface, contacts the spaced apart strands, and in conjunction with a cylindrical free wheeling roller, causes the fibers to be consolidated into a plurality of spaced apart strands according to the natural filament split.

Abstract: A liquid finish composition is applied to a plurality of continuous thermoplastic polymer filaments in such a way that the composition is applied to all the filaments uniformly from filament to filament. More particularly, the filaments are arranged side-by-side in a substantially planar array, at a first location one face of the array is contacted with the liquid finish composition and, then, at a second location spaced apart from the first location the other face of the array is contacted with the same composition. During the contacting at the first and second locations the tension is controlled so that it is in a range in which the contacting applies the composition to the filaments uniformly from filament to filament.