Abstract: An edge seal for a lithium or other consumable metal anode comprises a hydrophobic, chemically inert polymer coating having a high ratio of flexural modulus to flexural strength, a low Izod impact value, and low elongation properties. The seal is applied to the edge of the anode under an atmosphere of gas which is non-reactive with the anodic metal.

Abstract: A method and apparatus for performing repetitive cycles of panel coating operations using a programmable manipulator including a manipulator arm movable along a plurality of axes. The apparatus comprises a hand unit carried on the manipulator arm. The hand unit is movable so as to bring the brush held by it into resilient contact with an area of the panel to be coated. A coating material is injected into the brush at a predetermined rate while the brush is held in resilient sliding contact with the panel and while the manipulator arm moves about the panel to coat a preselected area of the panel. After the preselected area of the panel has been coated, the manipulator arm is moved to move the brush out of contact with the panel. Between coating cycles, the manipulator arm moves the brush into a storage chamber where it is treated to prevent the coating material from caking on the coating brush.

Abstract: There is disclosed a method of and apparatus for producing a wear-resistant coating on a thin metallic strip, for example for the manufacture of coating scrapers for paper webs. After preparatory surface treatment the strip is passed longitudinally through a coating zone in which coating material in a molten state is sprayed onto the strip by a coating unit as the strip passes. The wear-resistant coating is built up in steps by the application of several coating layers one on top of the other, each being applied during a respective pass of the strip through the coating zone. The strip speed and the capacity of the coating unit are adjusted in relation to each other so that the heat supplied to the carrier material by each coating layer applied will be so slight in relation to the thermal capacity of the carrier material that the temperature increase in the carrier material does not cause any change in the physical properties of the carrier material.

Abstract: An apparatus for over the edge printing including a printing squeegee which forces ink through clear portions of a printing screen onto a workpiece. Excess ink which is forced through clear portions of the printing screen and which extend over the edge of the workpiece, are cleaned by a cleaning assembly which includes a cleaning belt. The cleaning belt is unrolled below the printing screen and an excess ink squeegee prints the excess ink onto the cleaning belt which is then cleaned and re-rolled and the apparatus is made ready for the next printing stroke.

Abstract: A partial painting method suitable for partially painting a workpiece or article of a complex surface shape. A surface of the workpiece is coated with strippable paint. The coated strippable paint is dried into a strippable film on the workpiece surface. A laser beam is applied to the strippable film along a prescribed cutting line so as to cut the strippable film. A portion of the strippable film corresponding to a first area of the workpiece surface to be painted is peeled off, while the remaining portion of the strippable film is left adhering on a second area of the workpiece surface to remain unpainted, and thereby masking of the workpiece is completed. The first area is then painted with a paint to form a final paint coating.

Abstract: From knowledge of the fact that the pattern of the film of coating produced on a surface by spray coating varies with the distance between the nozzle of the spray gun and surface, the nozzle 2 of a spray gun 1 that is disposed facing an outermost end of a surface to be coated is axially inclined so that the external ridge-line of the fan-shaped spray produced thereby is almost perpendicularly with or slightly inwardly inclined to the plane of the surface, the distance as measured along the ridge-line between the nozzle and the surface being selected so that the spray gun can produce in the surface W a film of coating sharply defined at the contour, without unwanted spots of paint called the "tails" at both ends of the film.

Abstract: A plurality of insulated carrier plates are selectively coated with an electrical conductor. Each plate has a pair of flat mounting faces and a plurality of edge faces between the mounting faces. The edge faces include a plurality of spaced-apart, flat, coplanar protrusions projecting from the remainder of the edge faces. One of the mounting faces of each plate is coated with a plurality of mutually isolated first conductive layers, which extend to the respective protrusions. The other mounting face of each plate is coated with a plurality of mutually isolated second conductive layers, which extend to the respective protrusions. The plates are stacked face-to-face so the respective protrusions of adjacent plates adjoin. A conductive layer is then applied to the adjoining protrusions of the stacked plates to the exclusion of the remainder of the edge faces so as to interconnect electrically the respective first and second conductive layers.

Abstract: A strip of film for application to the upper edge of a windscreen or otherwise to act as an anti-glare device is characterized in that the degree of transparency thereof increases gradually from the upper to the lower edge thereof. The strip may be made by screen printing using a half-tone process and may be made in different colors using different kinds of ink.

Abstract: In the manufacture of encapsulated hybrid circuits from a substrate having a plurality of such circuits contained thereon, individual devices are first mounted on the circuit, encapsulant having a yield point stress and viscosity so as not to creep or flow is applied around the periphery of each circuit on the substrate so as to form a wall or dam around each such circuit except for the bonding pads for external connection of each circuit, a second encapsulant is then flow coated over the circuit and devices contained thereon within the previously formed wall such that the second encapsulant is retained within the wall. The encapsulants are then cured or dried and the individual encapsulated circuit can then be further processed such as by separating the individual circuits on the substrate and applying external connectors to the bonding pads.

Abstract: The process for producing a prepreg of a glass fiber cloth according to the present invention is characterized by heat-treating the inner portions of the selvages of the glass fiber cloth to remove the residual stress of glass fibers in the glass fiber cloth, coating the heat-treated portions of the glass fiber cloth with a solution of a saturated polyester type resin of 150.degree. to 180.degree. C. softening point insoluble in a thermosetting resin varnish to be later used for impregnation so that the amount coated becomes 4 to 10% by weight as resin based on the weight of the portions of glass fiber cloth coated, drying the resulging glass fiber cloth, removing the selvage portions of the glass fiber cloth by cutting, impregnating the selvages-removed glass fiber cloth with the above mentioned thermosetting resin varnish, and drying the impregnated glass fiber cloth.

Abstract: A process for sealing the edges of reagent ribbon using a grooved applicator roll such that the edges of the reagent ribbon become effectively sealed and liquid present in the reagent matrix material is retained therein and prevented from running over into another reagent matrix area present on the same reagent test device.

Abstract: The disclosed method is one for applying an opaque screening area (46) to a surface of a glass sheet (40). The method is initiated by applying to the surface of the glass sheet a masking material (42) which defines the edges of the opaque screening area. The masking material is nonreactive with the glass surface and is heat decomposable into products which can be removed from the glass surface without damage thereto. The masking material extends away from the defined edges of the opaque screening area to provide a wide area of masking material. A ceramic-containing material is applied on areas of the surface of the glass sheet to which the opaque screening areas are to be applied. The ceramic-containing material also coats at least a part of the masking material.

Abstract: Particulate sealing glass material is metered into a mixing container to occupy a portion of the volume of the mixing container. A selected amount of a gel producing vehicle is then introduced to the interior of said mixing container. The mixing container is then agitated for a predetermined length of time to thoroughly interdisperse the vehicle throughout the particulate sealing glass material.

Abstract: A protective device for protecting the viewing area of a vision panel from encroachment by flowable cement compositions used to bond reinforcing members to the edge portions of the viewing panel. The protective device is preferably formed of a material non-adherent to both the vision panel surface and the cement composition, and may include vacuum biasing facilities and an edge seal to provide a fluid barrier to the passage of the flowable cement compositions.

Abstract: An adhesive compound coating apparatus for coating an adhesive compound on leading and trailing beveled end faces of a rubber strip material, comprising: a conveyor unit for conveying the strip material in its longitudinal direction; a coating roller disposed to have a center axis substantially perpendicular to the longitudinal direction of the strip material and rotatable about its center axis with respect to the conveyor unit, the coating roller being movable with respect to the conveyor unit between a first position having the center axis of the coating roller positioned below the upper surface of the conveyor unit and a second position having the peripheral surface of the coating roller positioned above the upper surface of the conveyor unit; a drive unit for driving the coating roller to rotate about its center axis; an adhesive compound supplying unit for supplying and applying the adhesive compound on the peripheral surface of the coating roller; a detecting unit operative to detect the positions of th

Abstract: A can manufacturing method comprises applying a water-soluble resin sealing substance to the side and end seam edges of a can body blank and end plates, producing a thin layer of sealing substance on the side and end seam edges under hot drying atmospheres, seaming the side edges of the body blank including the end edges of the end plates to form a complete can, and subjecting the seamed portions to an applied heating to allow the layered sealing substance in the seamed portions to melt and unite the seamed portions. The apparatus permits a sealing substance to be applied on the side edges of a can body blank on the conveying path.

Abstract: For applying adhesive, for lasting shoes from the toe end at least over ball region of the shoe, an imprinter plate and nozzles are used, the region in which adhesive is applied by the imprinter plate extending from the toe end of the shoe and lying within, but being substantially smaller than, the region inwiped by the toe wiper plates. The nozzles, which can be guided by computer control means according to the particular style and size of shoe, are thus also used to apply adhesive to the heelward part of the region inwiped by the wiper plates as well as beyond such region. The invention is thus applicable to both combined toe and side lasting operations as well to extended forepart lasting over the ball region of the shoe.

Abstract: Manufacture of electrical components, particularly layer capacitors with dielectric layers of glow polymerisate, in which strip-shaped carriers are separated from an insulating tape. First, contact layers of a metal which does not soften during later contacting are applied to two opposite sides. Thereupon a metal layer and, optionally, further layers are applied to at least one side which is still free of metal. The metal layer is applied so that it overlaps at least one of the contact layers and forms with the latter an electrically conducting connection. The method is characterized by the features that the carriers are separated from an unmetallized insulating tape; that the cutting surfaces of the carriers are coated with the contact layers; and that then the metallization of the components is applied to one of the smooth surfaces which have not yet been metallized.

Abstract: The raised edge part of a deep-drawn plastic cover is printed by pressing a carrier of a resilient deformable material, carrying a coloring composition, against the raised edge part.An apparatus for manufacturing the plastic cover comprises a deformable carrier for carrying a coloring composition. The carrier is integral with a cylindrical part connected with a first cylinder. Two concentric cylinders, positioned around the first cylinder at either side thereof, deform annular parts of resilient material and press these annular parts against the raised edge part when, on the one hand, the first cylinder and, on the other hand, the two concentric cylinders are moved with respect to each other.The coloring composition may also be carried by a layer-shaped carrier material.

Abstract: A shaped synthetic polymer article having an enhanced desired function is prepared by preparing a shaped synthetic polymer article in which at least the peripheral surface portion of said article contains 0.1% or more, based on the weight of said shaped article, of a compound (A) having, per molecule thereof, at least one unsaturated radical of the formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 respectively denote, independently from each other, a hydrogen atom or an organic radical, and; by copolymerizing the compound (A) contained in the shaped article, with at least one compound (B) which has, per molecule thereof, at least one unsaturated radical of the above-mentioned formula (I) and at least one other functional radical capable of imparting a desired function to the shaped article.

Abstract: An improved insulative end cap for cylindrical metal drying rollers of paper manufacturing machines, a method of providing insulative end caps for cylindrical metal drying rollers of paper manufacturing machines, and a composition of an adhesive insulative material for use in providing insulative end caps for metal drying rollers of paper drying machines.

Abstract: A video disc includes a magnetic material applied thereon in such a manner that the orientation of said magnetic material is gradually intensified from the outermost track of the video disc to the innermost track thereof, starting from zero orientation at the outermost track.

Abstract: An improved reinforcement member for a central aperture in a flexible recording disk and a method for forming the same. The improved reinforcement comprises an integral, annular-shaped ring formed on one or both sides of the flexible recording disk about the central aperture thereof. This improved reinforcement is formed by transfer printing a liquid image of the reinforcement member onto a side surface of the flexible recording disk and then subsequently solidifying that liquid image. The liquid image to be transfer printed onto the flexible recording disk is first established by filling a metering reservoir shaped to be an image of the reinforcement member with a solidifying liquid. A terminal end of compliant rubber tampon is then first contacted to the reservoir thereby picking up the liquid image which is then contacted to the surface of the flexible disk to be deposited there.

Abstract: Miniature electronic component parts such as capacitors or resistors are end conductively coated by use of a part handling plate having a multiplicity of passageways therethrough with walls coated by resilient material to grip the parts. A bank of pins in a press (a) are used to move the parts in the passageways, (b) are used to load the parts into the passageways through the use of a loading plate housing part receiving openings filled with parts by the use of vibration equipment, and (c) are used to discharge the parts from the passageways into the recesses of an unloading plate. The parts are moved in the passageways first to expose one end to be coated and then second to expose the other end of the parts to be coated.

Abstract: A method and a system are provided for producing a continuous liquid spray curtain which, when sprayed onto a moving surface, covers essentially the entirety of that surface without substantial streaking thereof. The subject spray curtain is produced by discharging a continuous air curtain at a relatively high velocity of at least 600 feet per second. A plurality of liquid streams are at the same time discharged from a liquid discharge means at a relatively low velocity of not more than about 20 feet per second. The air curtain contacts the liquid streams at a minimum contact angle of between about -10.degree. and about +30.degree., measured from the center line of the liquid discharge means. The contacting air curtain atomizes the liquid streams and forms the subject high velocity, uniform, liquid spray curtain.

Abstract: A method is provided for end finishing an elongated composite trim strip. The show surface of a strip is first coated with a mask material. The strip is then cut so that the mask material covers the show surface adjacent the cut end. The end is painted and the mask material peeled away taking with it any excess paint and providing a clean edge between the painted end and the strip's show surface.

Abstract: A method of making gypsum wallboard in which a portion of the conventional foamed gypsum slurry for forming the wallboard core is fed through a relatively high speed agitator, wherein a special addition of material is thoroughly admixed therewith to increase the fluidity without adversely affecting the density or setting characteristics and this portion of the slurry is then disposed along the edge portion of the wallboard being formed, whereby a hard-edge wallboard is produced under conditions including improved uniformity of core edge setting time, density and dimensions and reduced plug-ups of feed lines through which the core-edge material is fed.

Abstract: A spray shield for use at both projecting corners and recessed corners, such as in a spray painting operation, comprises an angled sheet of rigid material having integral first and second legs. The sheet has a first free edge along the first and second legs for hugging a projecting corner. The sheet also has a second free edge along the first and second legs and opposite the first free edge for congruity with or projection into a recessed corner. The sheet is slanted throughout at least one of the legs to extend at an oblique angle two vicinal surfaces of hugged projecting and congruent recessed corners. The integral first and second legs of the spray shield preferably constitute two adjacent sides of a truncated right or oblique pyramid or prism having at least one of its sides extending at an oblique angle to its base.

Abstract: A razor blade having a fluorinated polymer coating over its cutting edge and a method for its preparation. A hydrocarbon polymer is disposed on the cutting edge, which polymer after appropriate sintering is brought into contact with a fluorine-rich atmosphere resulting in replacement of a plurality of hydrogen atoms by fluorine atoms creating a multiplicity of (--CF.sub.2 --CF.sub.2 --) groups.

Abstract: Disclosed is a method for making an electrical cable (10) which includes a plurality of insulated conductors (11) bound together in close proximity to one another to form a cablecore. A sheet of insulative material (13) surrounds this cable core and this assembly in turn is further surrounded with a conductive shield (14). An insulative sheath (16) surrounds the entire assembly. Integral with the conductive shield are means (15) for providing shield continuity when the insulative sheath and conductive shield are entered.

Abstract: This is directed to an electronic circuit apparatus using a flexible printed wiring board having a conductive leaf formed on the surfaces of a flexible base material such as phenol resin or the like, wherein a circuit conductive leaf is formed on at least the single face of a flexible base material and a peripheral edge leaf is formed on the periphery of the flexible base material. An electronic parts is mounted and connected to the circuit conductive leaf. Since the flexible base material is extremely thin and flexible, the electronic circuit apparatus can be constructed smaller and thinner.

Abstract: A plurality of porous valve-metal pellets, having the conventional oxide dielectric film, solid electrolyte, metallic counterelectrode, and insulative resin protective layer over the counterelectrode, are suspended by their anode risers from processing bars held in a carrier rack. Anode and cathode end-cap terminals are subsequently formed over opposite ends of each pellet, while the pellets are still suspended from the processing bars held in the carrier rack, by the selective steps of dipping and removing and curing of silver-loaded paint, and then nickel immersion plating over the cured silver caps, and then coating the nickel film with solder.

Abstract: A method for encasing an electric component of a type comprising a body and at least one pair of lead wires extending outwardly therefrom in the same direction. An outer protective coating or casing enclosing the body therein is formed by dipping the electric component into a solution of chlorinated hydrocarbon containing either a chained aliphatic hydrocarbon or a higher fatty acid to form a film covering the entire surface of the body and the surfaces of portions of the lead wires adjacent the body, then dipping the electric component into a solvent to remove the film except for that covering the surface of a portion of the body adjacent the lead wires and also that covering the surfaces of that portions of the lead wires, and finally dipping the electric component into a coating solution.

Abstract: This invention relates to making continuous ribbons of clear, flexible interlayer material into a maximum number of interlayers having a coating of graded intensity along a longitudinal edge portion thereof for use in curved laminated safety glass windshields. The method avoids rubbing or differentially stretching the flexible interlayer material during processing, which includes cutting a continuous ribbon of clear, flexible interlayer material into successive interfitting flexible sheets of trapezoidal shape, applying a shade band, preferably by electrostatic spraying, to a predetermined portion of each sheet and laminating the sheet so treated to one or more rigid transparent sheets of glass or a recognized plastic substitute for glass.

Abstract: The walls 41 (FIG. 4) of thru holes 11 in a printed wiring board substrate 12 are coated with a liquid 24 by inserting fingers 22 into the thru holes. Each of the fingers has a diameter slightly less than the diameter of the associated thru hole and has a length no greater than the thickness of the substrate 12. After ink 24 has been applied to the top surface of the substrate, the inserted fingers 22 are withdrawn, thereby drawing the ink down into the thru holes and coating the walls 41. In another embodiment, fingers 62 are aligned with selected portions 52 of an edge 55 of the substrate 50 to coat the portions of the edge as the fingers are moved by the edge after the heads of the fingers have been coated with the ink 24.

Abstract: An automotive window is manufactured by silk screening a pattern of a ceramic paste on a piece of glass having peripheral dimensions greater than the peripheral dimensions of the window. During the silk screening, portions of the screen extending beyond the pattern are supported by glass portions extending beyond the window to prevent bending of the screen near the pattern. The piece is scored through the pattern to define the window or a window blank within the piece and thereafter the glass around the window is removed. The window is then tempered at which time the ceramic paste fuses to the window.

Abstract: A method of absorbing resin into part of a panel of particleboard to provide local strength increases in that part. The method comprises subjecting the part to an electric field, immersing the panel in the resin; and then resubjecting the panel to the electric field to cure the resin. A particleboard panel is also disclosed. The panel has a main body with a specific gravity in the range 0.2 to 0.5 but at least one area on its periphery has a specific gravity in the range 0.7 to 1.0. The one area is impregnated with a synthetic resin. The panel is particularly useful in door production as it is strong but cheap.

Abstract: An automotive back window for flush glazing is manufactured by subsurface scoring a glass sheet to define an automotive back window blank in the sheet surrounded by sheet supporting glass portions. An endless band of ceramic paste is silk screened over the score as screen portions beyond the screen pattern are supported by the supporting glass portions. The sheet is thereafter baked to remove volatiles in the paste, the supporting glass portions removed from the blank and the blank having the baked pattern is bent and/or tempered.

Abstract: A slide bead coating method and apparatus wherein a first coating liquid is supplied from a center portion of a slide surface and a second coating liquid is supplied along edge portions thereof contiguous to the flow of the first coating liquid. The second coating liquid has a viscosity lower than that of the first coating liquid and a flow rate which is also lower than that of the first coating liquid. In this manner, breakage of both end portions of the bead is prevented without coating both end portions thicker than the center portion while yet a high coating speed operation is attained.

Abstract: An improved apparatus for clamping and rotating containers which includes a rotatably supported table for supporting and rotating a container about an axis, drive means connected to the table for rotating the table about the axis of rotation, a plurality of jaws movably mounted on the table for alternately engaging and releasing a container to be rotated, jaw-positioning means engageable with the plurality of jaws for moving the jaws into and out of engagement with a container, and actuator means for actuating the jaw-positioning means. A method of applying sealant to the inside of a container at the juncture between the inner surfaces of the bottom closure member and the sidewall thereof is also disclosed.

Abstract: A method for emplacing a seal on a closure for a container which comprises despositing a foamed adhesive in liquid form on an interior surface of the closure and allowing that foamed adhesive to solidify and adhere as a solid cellular foam to the interior surface of the closure.

Abstract: A method of welding together a pair of thermoplastic sheets each including pposite surfaces bridged by a terminal edge defining an edge portion by placing the edge portion of a first overlapping of the pair of sheets into overlapping relationship with a second edge portion of a second overlap of the pair of sheets and with the terminal edges thereof spaced a predetermined distance from each other and in generally parallel relationship to each other, applying a continuous linear strip of plastic welding material in thermoplastic state progressively and in generally parallel relationship to the terminal edges along surfaces of the overlapping and overlapped edge portions and in bridging relationship to the terminal edge of the overlapping edge portion, performing the overlapping in the absence of overlapping any portion of the overlapping first sheet upon itself and in the absence of overlapping any portion of the overlapped sheet upon itself, and applying heat to those surfaces of the overlapped and overlappin

Abstract: Disclosed is a multiple layered film preferably in the form of a tube and being suitable for forming sausage casings, comprising: a central layer of a cellulose hydrate-based material; a first layer on the inside of the central layer, comprising a film of thermoplastic synthetic resinous material and being impermeable to water and water vapor; and a second layer on the outside of the central layer, comprising a synthetic elastic copolymer and being permeable to water and water vapor. Also disclosed is a method for preparing these film products.

Abstract: A method for applying measured amounts of viscous material in a predetermined pattern in registry to a continuously moving sheet is provided which includes the steps of introducing the viscous material into a rotary valve having a bore in the valve rotor operatively communicative with the fluid inlet, and a passage radially communicating between the axial bore and an opening in the valve seat through which the material is dispensed onto the sheet stock. The length of the material dispensed to the sheet stock is determined by a slot formed on the surface of the valve rotor which surrounds the opening for the radial passage. Registry of the pattern is accomplished by correlation of the rotation of the valve with the rate by which the sheet material passes underneath the valve orifice. The valve containing the slot and related apparatus is also part of the invention.

Abstract: Apparatus for forming a tube, preferably of flexible thermally insulating material, comprises a cutting head 14 with a pair of concentric cutting edge 16, 18 which cooperates with a presser head 28 to cut rings 50 of material from a sheet 48 presented to the cutting head. The rings are stacked up on a guide bar 32 and sprayed with a coating composition to consolidate them into a tube which may be collected on a take-up drum in a continuous manner.

Abstract: A method of making gypsum wallboard in which a portion of the conventional foamed gypsum slurry for forming the wallboard core is fed through a relatively low speed agitator wherein a defoaming agent is thoroughly admixed therewith, and this portion of the slurry is then disposed along the edge portion of the wallboard being formed, whereby a hard-edge wallboard is produced using less energy than used with prior methods for making a hard-edge wallboard.

Abstract: By sealing the periphery of a printed circuit board, the previously exposed edges of the board are substantially prevented from moisture wicking. This sealing of the periphery can be made concurrently with the plating of through-holes on the board. With this process, current leakage paths due to board moisture wicking within the board is significantly reduced.

Abstract: A method and apparatus are disclosed for applying a light coating of fluid to the outer surface of a circumferential strip of one end of a cylindrically shaped article. The article is stabilized against angular axial movement while being advanced and rotated, in a planar path, through a treating zone. An airborne mist containing fine particles of the fluid is produced. This mist is transported to the treating zone and directed to impinge upon said circumferential strip. The impinged fluid mist is then leveled to achieve a uniform coating.

Abstract: This invention relates to a method of and apparatus for forming a colored shade band on an elongated area of a flexible sheet of interlayer material comprising applying a dye composition by electrostatic spraying against an elongated area of a surface of a flexible sheet of non-conductive interlayer material such as polyurethane or plasticized polyvinyl butyral. A flexible sheet to be coated is mounted on a support carriage at a loading and unloading chamber in a substantially horizontal support plane, is transferred to a coating chamber, is tilted into an oblique plane at said coating chamber where it is aligned with a platen mask, electrostatic spray means disposed to one side of said platen mask supplies an electrostatic spray of a dye composition through said platen mask to the elongated area of said flexible sheet.

Abstract: A pair of horizontally disposed nozzles above a horizontally disposed seal edge surface for coating a frit slurry in a closed pattern on the surface are moved in opposite directions from an abutting, mutually blocking position until the nozzles again come into sealing abutment at a second point above the surface. During the travel of the nozzles, a frit slurry is discharged therefrom at a constant rate and is deposited in a uniform stripe on the seal edge surface. Just before the nozzles abut at the end of the coating operation, the flow of frit slurry from one of them is terminated. This permits the frit slurry from the second nozzle to make a tapered overlay of the frit slurry from the earlier cut off nozzle without forming a bump or extra width at the joint. A rectangular gear generally conforming to the shape of the seal edge surface to be coated is employed to drive the nozzles at a substantially linear speed along the seal edge surface.