Abstract: An adhesive dispensing apparatus for applying continuous, parallel adhesive beads onto the center portion of a substrate and intermittent, parallel adhesive beads on the outer portions of a substrate, particularly the plastic backing sheet of a disposable diaper. The apparatus includes a slot nozzle, divided into two center sections and two end sections, which is formed with flow passageways for each section having a coat hanger profile including a plurality of spaced, discharge orifices to form the parallel beads. A valving arrangement including solenoid-operated center dispensing valves for each center section of the nozzle, and solenoid-operated dispensing and recirculation valve pairs for each end section of the nozzle, controls the flow of adhesive to the nozzle.

Abstract: A coating method wherein a part of coating liquid supplied from a liquid supplying device is circulated through a closed passage running somewhere between the liquid supply device and a liquid delivery nozzle of a liquid applying section from the liquid applying section to the liquid supply device while the coating process is in operation. The amount of liquid circulated in the closed passage is 0.5 to 10 times the amount of liquid supplied by the liquid supply device.

Abstract: Apparatus and procedure for applying a paint or like coating to an elongated strip article using a coating head having an open-sided slot to which coating material is supplied under pressure, and a support such as a roll around which the strip is advanced past the head for receiving from the slot a layer of paint metered between the head and the strip, wherein a load is continuously exerted on the head during operation for urging the head against the applied paint layer on the strip so as to maintain a uniform metering gap between the head and the coated strip surface. The load may be exerted by devices such as air cylinders acting on the head and capable of adjustment to vary the magnitude of the load for different coating operations.

Abstract: A valved flow control dispenser including a slot nozzle through which molten thermoplastic material is dispensed onto a substrate. The slot nozzle includes a nozzle body within which there is a transverse cylindrical bore, which bore is intersected by two spaced radial openings. One of these openings is in fluid communication with a pressurized source of molten thermoplastic material, and the other opening is in fluid communication with a slotted discharge opening of the nozzle. A cylindrical flow control member having a groove provided in its exterior surface is rotatably mounted within the bore. This groove is of varying width and provides a flow path for molten thermoplastic material between the openings in the bore. By varying the rotatable orientation of the cylinder relative to the openings, the width of molten material dispensed from the slotted discharge openings of the nozzle may be varied.

Abstract: A nozzle assembly for use with a hot-melt dispensing head having a manifold with a lengthwise passageway opening into plural, spaced-apart nozzle inserts for dispensing hot melt. The nozzles themselves are aimable over a wide range of angles and are replaceable. In one configuration the nozzle assembly has a T shape with the nozzles on a side of the T top distal to the dispenser head. In another configuration, the nozzle assembly has a Y shape with the nozzles on a side of the Y top facing the dispenser head. The two configurations may be spaced opposite each other to form a box sealing station.

Abstract: A machine for applying resinous stiffening material to the heel pocket portion of a shoe upper, and for holding a liner portion thereattached, away from the upper heel and sides by a liner extender as the resinous material is being applied, and then wiping the liner against the resinous upper while liner extender is being withdrawn from between the layers of material.The liner extender is comprised of a loop member articulately upwardly and outwardly from a nozzle as it advances to the heel pocket articulately downwardly and backwardly toward the nozzle during completion of the application of resinous material between the flexible layers of the shoe upper.

Abstract: An apparatus for spreading jointing adhesive on each side of a crosswise tear-off perforation on a paper web which makes one side of form envelopes, said apparatus comprising an adhesive spreading roll (2, 2") and a counter roll (6) for passing therebetween said paper web (7) with crosswise tear-off perforations. The periphery of adhesive spreading roll (2) is provided with two parallel arrays of adhesive nozzles (2a) extending longitudinally of the roll. In order to adapt the apparatus to forms of various sizes (to perforation gaps of various lengths), the distance of nozzle arrays (2a) from the center axis of rotation (3) of gluing roll (2) is adapted to be varied either in a manner that there are used several replaceable adhesive spreading rolls (2) having different diameters or in a manner that several nozzle rails (2b, 2c) having different heights can be replaced and fitted in a groove (2d) provided on roll (2').

Abstract: A coating method and apparatus in which a coating composition is uniformly coated onto a continuously moving web without accumulation of thickened composition in the coating head. Auxiliary supply pipes open into the cavity of the coating head at both ends of the cavity. Liquid is either supplied through the auxiliary supply pipes to the coating head, or a portion of the coating composition contained in the coating head is discharged through the auxiliary supply pipes. Preferably, the supply or discharge of the liquid through the auxiliary supply pipes is at a rate such that a ratio of a velocity component of the liquid flowing through the auxiliary supply pipes to that of the coating composition onto the moving web is in a range of 0.01 to 10.

Abstract: Improved installation (10), whereby in a first section (22) coating (24) is applied on substrate (14), moving through a passage (16) under double floating condition, in a following section (26) a layer fluid (28) is applied on said layer coating (24) and in the following sections (30) and (32) the removal takes place of said fluid layer with thereafter a drying of the remaining coating layer.

Abstract: A centrifuge chamber for cytodiagnostic investigation of epithelial cells contained in a sample, wherein a cell suspension investigated is placed in a first bore of a sample chamber containing a plurality of bores disposed parallel to one another and subjected to a centrifuging process. During a centrifuging process, the sample fluid is separated into a proximal fraction and a distal fraction, and the proximal fraction is then separated by the centrifuging process so that it is transferred via a flow connection provided between the first and second bores, into the second bore. In addition to automatic separation of the proximal and distal fractions during the centrifuging process, it is also possible to perform a staining procedure during the centrifuging process.

Abstract: Adhesive applicator device in a cement lasting machine comprising an adhesive applicator element provided for the shoe toe and two adhesive rails adjacent the adhesive applicator element. The adhesive applicator rails are secured to the adhesive applicator element by means of a ball joint and on the opposite side are connected by a further ball joint with a push-rod. By virtue of the two-sided ball joint journalling the two adhesive applicator rails can thus accommodate to any position of the lasting margin.

Abstract: Foam applicators having specific lip configurations and substrate orientation, used for applying foamed treating compositions to substrates, including rapidly moving paper, provide uniform distribution of treating agent onto the substrate.

Abstract: In an apparatus for applying a viscous material, for example, a frit slurry, to a horizontally disposed seal edge surface of the funnel portion of a cathode ray tube through nozzles moved in a closed pattern above such surface, the frit slurry is supplied under pressure from a valved outlet of a container or other source through flexible hoses and then bellows to the nozzles, and the bellows are contracted and expanded in correspondence with the opening and closing, respectively, of the valved outlet.

Abstract: In combination, a wave station establishing a wave of liquid solder having a convex configuration transverse to an axis which decreases in cross-sectional area with distance along the axis, apparatus transporting along the axis an electrical component having at least one linear conductor extending transverse to the axis to pass through the wave of solder, and heating and suction apparatus for removing excess solder from the conductor.

Abstract: A device for coating a continuous web that travels over a back-up roll. The force of application can be adjusted. The coating material is applied to the web with a slotted applicator pipe. The pipe extends over the width of the web and has a preliminary coating-material flow-regulating gap. The width of the gap can be adjusted. A coating-material flow-regulating lip and a return lip adjoin the gap in such a way as to constitute a coating-material flow-regulating chamber extending over the width of the web. The flow-regulating lip is a doctor bed and has a doctor batten that moves with little friction along at least one overflow-side slide face. The face of the doctor batten toward the web that is being coated is rectangular and demarcates in conjunction with the web a narrowing wedge-shaped gap with a geometry that depends on the degree of contact pressure. The overflow edge of the face is a straight and sharp stripping edge. The face and stripping edge of the doctor batten are flexible.

Abstract: A method and an apparatus in which gas is jetted out of the gas injector 3' to support the support 2 in a contactless manner, while coating solutions are applied onto both sides of the support 2 by means of the coaters 1 and 1'. Supporting static pressure produced in a gap between the support 2 and the injector 3' is made to become 1/10 through 1/1000 of supply pressure of gas fed into the injector 3', and a lift of the support 2 at the contact point with the coating solution from the coater is made to have a value of 20 through 500.mu..

Abstract: A liquid toner applicator includes a hollow housing or manifold divided into two channels. A wall of the housing common to both channels is composed of a multi-layer lamination of thin sheet layers, such as etched metal foils. The outermost wall layer constituting the bearing surface for the recording medium is formed with a pattern of slots for applying toner to the exposure surface of the medium. The innermost wall layer is formed with two sets of holes, each set being open to different housing channels. The remaining wall layers between the innermost and outermost layers are each formed with an array of slots or holes which combine and interconnect in the wall lamination to provide a first network of precisely defined toner feed pathways between one of the housing channels and one end of each of the slots in the outermost wall layer and a second network of precisely defined toner recovery pathways between the opposite end of each of the slots in the outermost layer and the other housing channel.

Abstract: Process and apparatus for applying finish to yarn and confining finish are disclosed. The apparatus for applying finish features an applicator face which comprises the delivery area of a finish supply duct and the surface area of two primary arcs, one located on either side of the duct and curving in the general direction of yarn travel. The central angle subtended by each of the primary arcs ranges from about 2 to 9 degrees. The edge of each of the primary arcs remote from the duct terminates in a secondary arc which subtends a central angle of 30 to 60 degrees and with a radius length shorter than that of either primary arc. The apparatus for confining finish comprises a housing, plate and baffle(s). The housing substantially encloses a finish application device and has openings for yarn entrance and exit and for take-off of excess finish. The plate is mounted beneath the finish application device. The baffle(s) are disposed between the plate and the take-off opening.

Abstract: An apparatus and method wherein strips of elastomeric material are fed separately onto a roller at more than one position around the circumference of the roller at predetermined axial locations to form predetermined cross-sectional areas of the cross section of the band. Between the positions where the strips are applied and prior to removing the band from the roller, guide means is provided to guide the strips in the predetermined axial locations. The guide means confines the strips between a circumferentially grooved guide member and the cylindrical surface and the grooved guide member may be a replaceable insert mounted in a recess of a plate for accommodating different sizes and shapes of the formed band with different inserts.

Abstract: In a coating method, a web is run along a stationary metering member having a curved smooth surface at the upper end in such a manner that the web is in contact with the smooth surface, a solution which is substantially the same in composition as a coating solution is continuously supplied to the web at a position which is before the metering member, to wet the coating surface of said web, and a predetermined quantity of coating solution is supplied continuously to the web at a position which is after the metering member.

Abstract: A rotary workpiece treating apparatus is described particularly useful for depositing coating or adhesive materials within threaded fastener nuts. The device includes a continuously rotating turntable assembly having a plurality of workstation cylinders attached thereto. Installed within the cylinders are plungers having cam followers, which plungers move between a first and second position as the turntable assembly is rotated. A probe attached to the plunger is caused to enter within the internal bore of the nuts and release flowable material within the nut. The flow of such material is controlled by a valve stem protruding from the probe which is depressed against a stop surface when the probe is inserted within the nuts. A second clamping plunger within the cylinder clamps against the nut when the probe is being inserted, thereby positioning the nut and preventing flowable material from being deposited on the exterior surfaces of the nuts.

Abstract: A method of simultaneously applying multiple layers of coating liquids to a moving web with a slide hopper type coating apparatus in which the fluidity of a coating liquid for forming the lowermost of multiple layers is improved to thereby eliminate inter-layer mixing and waving. The first coating liquid which forms the lowermost of the multiple layers is prepared so that it, when run at a low shear rate, has a viscosity equal to or different by no more than .+-.10 cp from a viscosity of a second coating liquid for forming a layer next to the lowermost layer when the second coating liquid flows at a low shear rate and that the first coating liquid, when run at a high shear rate, has a viscosity lower than the viscosity of the second coating liquid when the second coating liquid flows at a high shear rate. The first and second liquids are then applied to a moving web with the slide hopper type coating apparatus.

Abstract: A coating method comprises the steps of feeding a base material into a gap defined between a coater die and a base material feeding roller and coating said base material with viscous material discharged from said coater die, wherein the dimension of the gap between the coater die and the base material feeding roller is adjustably varied under action of a pressure at which said viscous material is discharged from the coater die in response to a variation in said pressure. The coating apparatus used for execution of the coating method is so constructed that at least one of said coater die and base material feeding roller is supported by a displacement control device so that said coater die or said base material feeding roller is displaceable against action of said displacement control device under effect of a pressure at which viscous material is discharged from the coater die.

Abstract: A method and apparatus for forming and sealing bags in a continuous or intermittent manner where the bags can be filled during the forming operation. Specifically, there is disclosed an apparatus for supplying a sheet or film of bag material to a mechanism for forming the sheet into a tube having overlapping edges in a longitudinal direction. A series of plates are arranged in the forming apparatus for applying adhesive in spaced lines or strips on opposed surfaces of the overlapping edges. After the adhesive is applied in this manner the opposed surfaces of the overlapped edges are pressed together to seal the edges. The tube is sealed in a transverse direction at the bottom, filled in a conventional manner, sealed in a transverse direction at the top, and then cut to form the bag filled with food or other material, ready for distribution and sale.

Abstract: A footwear forming machine wherein a shoe (or other footwear) upper assembly comprising a shoe upper draped about a last and an inner sole at the bottom of the last, is presented to the machine for applying adhesive and wiping of the lasting margin. The machine includes an inner sole support or footrest to receive the shoe upper assembly, means for stretching and forming the upper about the last and means for wiping the upper margin against the inner sole. An adhesive applicator mechanism is provided that include two extruder sections operable to apply adhesive to the bottom of the inner sole respectively near each edge of the toe portion of the shoe upper assembly.

Abstract: A method and apparatus for applying a film of liquid pigmented coating material to a moving web of paper at, and between, a low limit of two pounds per ream and a high limit of fifteen pounds per ream. The method and apparatus utilize a reservoir of liquid coating material established between a forward liquid coating material seal and a rearward pneumatically loaded and clamped doctor blade spaced a small distance of a few inches or less from the liquid seal. The reservoir is pressurized in the range of 7 to 150 inches of water so that the coating material is applied under pressure to the moving web and then almost instantaneously wiped by the doctor blade. The reservoir is formed by two relatively movable, sealed members which may be opened for easy cleaning, and may have one or more internal coating material distribution headers at its end opposite the web to uniformly distribute the coating material.

Abstract: An apparatus for forming a succession of equispaced and transversely extending glue strips on a longitudinally extending web has an applicator drum rotatable about a drum axis and having a cylindrical outer surface with a circumference equal to a whole-number multiple of the desired distance between succeeding strips. The drum is formed with at least one axially extending manifold passage and an axially extending row of bores opening radially outward at the drum surface and inward into the passage. Guide and transport rollers displace the web longitudinally at very high speed past the applicator drum with the web looped over same and engaging same over an angularly extending contact region. A drive rotates the drum about the axis at a peripheral speed substantially equal to the very high displacement speed of the web.

Abstract: The invention relates to an apparatus for spreading a fluid onto a moving web of material, especially for spreading size onto a paper web. It is previously known to spread fluid substances onto a moving web of material by means of a comb nozzle. Especially when size is being spread, the size tends to harden during stoppages, thereby clogging the openings of the comb nozzle. The apparatus according to the present invention enables a fluid to be spread onto a moving web of material without the apparatus getting clogged even in a dusty environment. By means of the apparatus it is possible to spread even rapidly drying fluids without the risk of the substance being spread drying in the nozzle opening or openings during stoppages.

Abstract: A slide bead coating method and apparatus for applying a coating solution onto an advancing web includes an air compressed chamber for keeping a lower side of a solution bead in a pressure-applied condition to produce a difference in pressure between the upper side and the lower side of the solution bead to stabilize the bead. A coating solution which has a low viscosity and good wetting properties can thus be applied onto the web at high speeds and in a thin layer form, and a so-called bead-dropping phenomenon is avoided. Therefore, the preparation of a layer for photo-sensitive materials is facilitated.

Abstract: The invention pertains to a device adapted to apply thermoplastic cement for assembling shoe vamp sides, comprising a pair of heater units leading to feet suitable to spread cement along the edges of a shoe insole and a pair of supporting arms for said heater units fixedly mounted with respect to each other and connected to each other at their free ends by means of a pin, operated by an actuator, which can be disposed at a predetermined height above the insole. Each of said heater units is provided with a slide bar disposed parallelly to the axis thereof, axially and slidably engaged within a slide hole obtained in a small block carried by said supporting arms.

Abstract: This disclosure is concerned with independent fluid dispensing by a multi-slot cavity nozzle with opposing zig-zag fluid path baffle-diversion operation, generating a pair of adjacent line fluid depositions upon a web moving past the nozzle, and enabling the separate but simultaneous use of adhesives and other fluid media of different characteristics and in widely flexible multi-layer coating patterns including superposed, side-by-side, spaced and other multi-layer patterns.

Abstract: In a film unit for photography of the diffusive transfer process type including a photosensitive sheet, a mask defining an image border definition with an aperture provided therein, a pod for a processing liquid etc., bordering portions of the photosensitive sheet underlying around the image border definition are applied by dummy liquid layers in place of the layers constituting the photosensitive sheet.

Abstract: An applicator head, for applying a coating of material (e.g. hot-melt adhesive) to a passing ribbon comprises an extrusion slot disposed transverse to the direction of passage of the ribbon and arranged to apply a coating of material in at least one continuous band along the ribbon, and an arrangement for intermittently opening and closing an extrusion slot for applying a coating of material discontinuously in a band contiguous with said one band.

Abstract: An apparatus and method is disclosed which will rapidly provide a uniform layer of photopolymerizable material for a printing plate. A regulated flow of liquid photopolymerizable resin is supplied from an external reservoir into a manifold which is approximately C-shaped in cross-section and has one at least partially open side face. A gate is disposed before the open side face of the manifold and this gate is vertically adjustable so that together the gate and open side face define an orifice slot or passageway from which a uniform curtain of the resin may flow onto a platemaking surface. The manifold member has a downward projecting wedge shaped lip which acts as a doctor blade on the liquid resin layer deposited as the manifold is moved across the plate-making surface.

Abstract: An apparatus for melting and applying meltable adhesive, especially in combination with edge gluing machines for continuously advancing work pieces, includes a melting chamber (4) for the meltable granular adhesive material. The melting chamber is equipped with a heatable melting insert (5). A supply container (17) for the solid meltable granular adhesive material (18) is arranged to open into the melting chamber (4). A power driven closure slide (13) is arranged between the melting chamber (4) and the supply container (17) for the granular adhesive material. The closure slide (13) is operated in such a manner that filling the melting chamber (4) with granular adhesive material (18) is free of trouble and the adhesive material may be properly processed without any difficulties, especially without any jamming.

Abstract: An improved method of coating one or more layer of a coating liquid onto a moving substrate from a coating hopper wherein coating bead of the coating liquid is formed and a part of the bead is formed at a side of entering of the substrate with respect to an efflux end of the coating hopper, and an end of the part of the bead being in contact with the coating hopper is held at a fixed position.

Abstract: An improved glue application system is used in combination with a collating apparatus of the type in which a plurality of rolls are mounted on spaced spindles and webs unwound from the spindles are to be collected in overlapping relation. The improved glue application system includes at least one flexible tapered nozzle having a tubular body and a tip having an end which contacts a supported surface of a selected web at an angle normal to the supported surface, the nozzle being mounted on the collating apparatus such that the tubular body flexes in response to variations in distance from the supported surface to the tubular body so that the end remains in contact with the supported web during operation of the apparatus. The nozzle communicates with a source of glue by a conduit which carries a valve which can be remotely controlled to start or stop the flow of glue through the nozzle.

Abstract: The applicator for applying adhesive to a work piece, for example in an edge glueing machine for work pieces moving continuously through the machine, has adhesive discharge holes (6). The adhesive is supplied through these holes (6) under pressure to the edge of work pieces. Any contaminating particles, which may be present in the adhesive prior to its application to the work piece, tend to travel upwardly with the adhesive in the adhesive supply conduit (2, 4), due to their lower specific weight, whereby the contaminations may clog the discharge holes (6) and prevent the proper application of adhesive to a work piece. For avoiding such clogging the nozzle body (1) is provided with a scavenging duct (5) which is connectable to the adhesive supply conduit (2, 4) for repeatedly passing a portion of adhesive out of the supply conduit (4), whereby the application of adhesive may be performed without any trouble. The discharge holes (6) are closed during the scavenging of a small portion of adhesive.

Abstract: A coating method and coating extruder in which color non-uniformity and stripes in a coated solution on a surface of a continuously-run flexible belt-shaped support are eliminated. Coating solution is supplied from a solution pool of the extruder through a slit at a rate which is greater than that which the coating solution is applied to the support through the slit. A portion of the coating solution is discharged from the solution pool from a position furthers, in the widthwise direction of the support, from the solution supplying point of the solution pool.

Abstract: An adhesive coating machine in which a gear pump for pressure-feeding an adhesive is mechanically driven upon passage of an object matter to be coated with adhesive and ejects the adhesive on the object, and in which after the passage of the object the gear pump is reversely rotate so that the adhesive is prevented from flowing out. A drive wheel is positioned inside the passage of the object and rotated by the object matter to be coated during the passage thereof, thereby driving the gear pump.

Abstract: In the coating of a major surface of a strip article, wherein the strip surface is advanced longitudinally past a dam and, immediately beyond the dam, past an extended wall spaced from the strip surface by a gap equal to a desired wet coating thickness, a first liquid coating material is applied to the strip surface ahead of the dam and a second liquid coating material is delivered under pressure to the gap beyond the dam through one or more apertures in the wall to produce a stripe or stripes of the second coating material. The apertures can be provided in a rotatable disk, constituting a portion of the wall; rotary movement of the disk angularly displaces the apertures so as to vary the location and spacing of the produced stripes, for example in a manner simulating the appearance of natural wood grain.

Abstract: Production of a longitudinally striated coating on a strip article by advancing the article past an open side of an otherwise-enclosed trench so that the article surface to be coated closes the open trench side, while delivering concurrent laminar flows of two different liquid coating materials to the trench at least at one locality spaced from the trench open side, to keep the trench completely filled and to deposit a layer of coating material on the moving article surface. Liquid circulation in the trench caused by the motion of the article surface so distributes the two coating materials along the trench that the applied coating layer is constituted of alternating longitudinal striations of the two materials.

Abstract: In a system for plating precisely located spots on an intermittently moved strip of metal, a spring loaded pawl on the spot defining mask is positioned to grasp holes in the strip and move just the mask a short distance with the strip so as to insure mask alignment with the strip.

Abstract: This relates to the formation of sausage casings formed of a fibrous tube by penetrating the tube or web with viscose. A specific coating and extrusion die is provided together with a statement of the discovery that where there is laminar flow the penetration of the viscose is not controlled by the orifice size per se, but by the relative application of the viscose with respect to a column of viscose passing through the same orifice at the same rate.

Abstract: This disclosure is concerned with enabling the use of multiple liquid adhesive nozzles principally to provide continuous uniform adhesive layers, particularly in relatively small items such as cigarette filter tips or the like, wherein a critically oriented adhesive shear surface adjacent the nozzles causes the plurality of adhesive beads simultaneously deposited by the nozzles to merge into a full, continuous, uniform coating, and with additional control features provided to control the degree of merger from separate adjacent beads to uniform merged coating.

Abstract: In the coating of a strip article of indeterminate length, wherein the article is continuously advanced lengthwise past a dam while liquid coating material is supplied to a major surface of the article ahead of the dam, the article is passed through a gap of extended length immediately beyond the dam, the gap being defined between uniformly spaced walls one of which faces the article surface bearing the coating material. The spacing between the gap walls is equal to the thickness of the strip article plus a desired wet thickness of the layer of coating material. Coating material of different colors or shades may be supplied to different portions of the strip surface for producing coatings of varied patterns.

Abstract: A machine for applying cement in the corner between the unwiped portion of the margin of a shoe upper mounted on a last and the corresponding portion of the periphery of an insole located on the last bottom by a pair of nozzles that each has a laterally projecting tip wherein the toe portion of the upper margin has been wiped against and secured to the insole and segments of the upper margin at the boundaries between the wiped and unwiped margin portions overhang the insole. The nozzles are caused to apply cement in the corner while moving from the heel end extremity of the corner to locations beneath the margin segments, after which the nozzle tips are moved inwardly of the segments and are then moved away from the insole. The nozzles are placed at the heel end extremity of the corner by being moved downwardly against the insole while the tips face the heel and extremity of the insole and are then moved heelwardly to positions wherein the nozzles are proximate to the heel end of the upper margin.

Abstract: The invention relates to an apparatus for coating moving strips with several layers, in particular for coating photographic films and papers with photographic emulsions and layers, the apparatus consisting of a coating block comprising several profiled parts screwed together by means of contraction anchors and the invention relates to a process for joining the profiled part together to form a coating block.

Abstract: This disclosure involves periodically bumping webs such as a cigarette filter paper or the like against a shear surface disposed beyond a multi-nozzle adhesive extruder to provide longitudinally intermittent bands of adhesive coatings for the filters or the like, with optional provision for continuous marginal lines of adhesive along and between the bands for adhesion on the head and tail ends of such filters or other articles as well.

Abstract: A fay surface sealing tool for applying sealant between wing skin and spar chord joints prior to fastener installation. The fay surface sealing tool includes a plurality of plurality of spaced apertures for dispensing the sealant in bead form between each row of fastener holes and on each edge margin subsequent to joint opening.