Abstract: The present disclosure describes an additive manufacturing apparatus. The apparatus includes a chamber (11) having a planar circumferential top edge portion (12) defining a chamber orifice (13); a stage (15) movably positioned in the chamber (11), the two together configured to receive a viscous resin; a dispenser (30) facing the stage (15) and operatively associated therewith, the dispenser (30) configured to apply a planar coating of viscous resin; a primary drive (22) operatively associated with the dispenser (30) and chamber (11), the primary drive (22) configured to move the dispenser (30) across the chamber orifice (13); a light engine (40) facing the stage (15) and operatively associated therewith, the light engine (40) configured to expose a coating of resin on the stage (15) planar top surface (12) to patterned light; and a stage drive (24) operatively associated with the stage (15) and configured to retract the stage (15) into the chamber (11), following exposure of a coating of resin.

Abstract: A process for producing a highly oriented graphene oxide (GO) film, comprising: (a) preparing either a GO dispersion having GO sheets dispersed in a fluid medium or a GO gel having GO molecules dissolved in a fluid medium; (b) dispensing the GO dispersion or gel onto a surface of an application roller rotating in a first direction to form an applicator layer of GO and transferring the applicator layer to a surface of a supporting film driven in a second direction opposite to the first direction to form a wet layer of GO on the supporting film; and (c) removing said fluid medium from the wet layer of GO to form a dried layer of GO having an inter-planar spacing d002 of 0.4 nm to 1.2 nm and an oxygen content no less than 5% by weight. This dried GO layer may be heat-treated to produce a graphitic film.

Abstract: A tire dressing applicator comprises a support and one or more foam plastic elements mounted on the support so as to contact a tire sidewall and transfer dressing onto the tire sidewall. A distribution system drips or drizzles dressing onto the element(s) after which it is spread over and into the element(s) surface. The elements can be toroidal or rectangular and have anti-distortion pins embedded therein.

Abstract: A rotary-style coating machine of the type capable of applying coatings to various web substrates in the commercial offset web and/or digital web printing industry. The coating machine includes a coating cylinder and a plate cylinder that are rotatably mounted within the machine. The coating cylinder includes a coating sleeve removably mounted on a mandrel, and the plate cylinder includes a plate sleeve removably mounted on another mandrel. The machine further includes a unit for depositing a coating material on the coating sleeve as the coating cylinder is rotated. The plate cylinder is operative to receive the coating material from the coating sleeve. An impression cylinder supports a web substrate that receives the coating material from the plate sleeve.

Abstract: The invention relates to a method and apparatus for wet-chemical processes (cleaning, etching, stripping, coating, dehydration) in a continuous method for flat, thin and fracture-sensitive substrates, the substrate transport and the wet process being effected by media-absorbing rollers.

Abstract: A process including: providing a cylindrical substrate rotating about the long axis; applying at least one coating layer with a direct writing applicator on the outer surface of the rotating substrate; and curing the resulting coated layer or layers. The use of a direct writing applicator provides precision in the dispensing of organic photoconductor coating layers with respect to line width and line thickness.

Abstract: A coating machine includes a conveyor surface that receives and carries a stringer toward a downstream end of the conveyor. An engagement mechanism forces the stringer against the conveyor surface. An applicator mechanism coats the stringer with a coating material during a discharge mode. The discharge mode occurs while a stringer within the coating machine is in a predetermined position. A retention mode occurs while there is not a stringer in the predetermined position within the coating machine. A motor drives the conveyor surface at a first speed during the discharge mode, and at a second speed that is slower than the first speed during the retention mode.

Abstract: An electrode forming apparatus for electric parts has a tape and a driving mechanism. The tape has holding holes for holding board-shaped electric parts therein at regular intervals and feeding holes for feeding the tape at regular intervals. The driving mechanism can feed the tape by engaging with the feeding holes of the tape. A pasting unit applies electric conductive paste to the electric parts held by the holding holes of the tape fed by the driving mechanism, in order to form a electrode. Each of the holding holes has a pair of abutting edges for abutting on both opposite surfaces of the board-shaped electric parts and at least one cutout portion formed from the butting edges. Due to the above constitution, the board-shaped electric parts can be held and conveyed by the abutting edges of the holding hole.

Abstract: Method and apparatus for manufacturing a heater roller which includes a cylindrical electrically insulating substrate having an outer circumferential surface, and an electrically resistive heat generating layer formed on the substrate for heating a desired member in evenly pressing contact with that member, wherein an electrically resistive paste for forming the electrically resistive layer is delivered from a paste delivery tube of a paste delivery device onto the outer circumferential surface of the substrate, while the cylindrical substrate is rotated about its axis and while the paste delivery device and the electrically insulating substrate are fed relative to each other in the axial direction of the cylindrical substrate, such that the relative feeding speed is controlled in relation to the relative position of the paste delivery device and the substrate in the axial direction of the substrate, within a range that permits formation of a film of the electrically resistive paste on the substrate, which fi

Abstract: A method for printing a solder paste to a printed circuit board with use of a screen mask plate and a squeegee, the method includes steps of moving one of the printed circuit board and the screen mask plate at a first moving speed in a direction to be separated from the other of them after printing of the solder paste and until the moving one of the printed circuit board and the screen mask plate reaches a plate-separation position which is a position immediately before the screen mask plate and the printed circuit board are completely separated from each other, and changing the first moving speed to a second moving speed higher than the first moving speed when the moving one of the printed circuit board and the screen mask plate reaches the plate-separation position.

Abstract: A method of forming a thin film on the surface of a substrate using a roll coater without forming a projection of the thin film near the rear edge of the substrate includes the steps of: loading a substrate on a stage, moving the stage in a predetermined direction up to a certain position where at least a portion of the surface of the substrate comes into contact with the applicator roll while controlling the operation of the roll coating apparatus so that the amount of coating fluid transferred per unit area from the applicator roll to the substrate surface is a predetermined value, and further moving the stage in the predetermined direction to cancel the contact between the surface of the substrate and the applicator roll while controlling the operation of the roll coating apparatus so that the amount of coating fluid transferred per unit area from the applicator roll to the substrate surface is relatively reduced.

Abstract: A magnetizable layer can be applied to a flexible backing web by gravure coating at high speeds by independently driving the backing web at a speed that is substantially different from the surface speed of the gravure roll. Especially high coating speeds have been achieved when the gravure roll rotates oppositely to the direction in which the backing web is advancing. In one embodiment, a nip roll presses the backing web against the backup roll, there is a gap between the gravure roll and a backup roll, and an idler roll is positioned downstream of the gap to force the backing web into contact with the gravure roll over a short arc. When that backup roll has a hard surface such as metal, its surface can be machined with precision, and that precision can be maintained in spite of exposure to solvent vapors.

Abstract: An application member for applying a coating material, such as a pressure sensitive adhesive, to a receiving surface, such as a paper substrate. The application member includes a cylindrical peripheral surface and a plurality of spaced, discrete structures projecting from the peripheral surface of the hub, whereby adhesive may be carried on and between the structures prior to being applied to the receiving surface. By varying the surface velocity of the application member relative to the velocity of the substrate, the characteristics of the adhesive layer applied to the substrate may be changed. Also provided is a process for making the application member by retaining individual particles within substantially all of a plurality of indentations in the peripheral surface of a hub.

Abstract: A method of applying bonding agents, such as solder pastes and conductive adhesives, to pad sites in the manufacture of electronic circuits uses a paste injection head. A permanent mask with cavity openings is applied around conductive pads on a carrier. The conductive pads correspond to chip attachment sites. The injection head is brought into contact with a surface of the mask, and pressure is applied to a bonding agent in the injection head. The injection head is then moved over the surface of the mask, filling cavity openings with the bonding agent. The injection head is then removed from the surface of the mask. If a solder paste is used, infrared radiation is applied to filled cavity openings to evaporate a paste flux and reflow solder to form solder balls within the cavity openings projecting above the mask. If a conductive adhesive is used, a stencil is applied to the surface of the mask prior to contacting the mask with said injection head.

Abstract: Solder is deposited on a printed circuit board by melting the solder in a container. The container has a slot for passage of solder, therethrough and control means actuable to alternately allow and prevent passage of solder through the slot. The slot is placed in contact with a stencil and the control means is actuated to allow passage of solder through the slot. The stencil is moved relative to the container in a direction transverse of the slot to deposit solder on the printed circuit board via the stencil.

Abstract: An apparatus and method for applying liquid coating material to the end surfaces of decorative members such as body side molding strips or the like. The apparatus comprises a rotating wheel mounted on a horizontal shaft so that a portion of the wheel extends above a table surface. The decorative members are placed on the table surface so that the end surfaces contact the sides of the wheel, which pick up coating material from a supply source during rotation. By controlling the viscosity of the coating material and the speed of rotation of the wheel, the amount of coating material applied to the end surfaces may be controlled.

Abstract: A method for creating a registered pattern on a metal coil includes providing a pattern applicator roll and a drive motor for rotating the roll, moving the coil into contact with the applicator roll to permit it to create a pattern sequentially on the moving strip from the coil, measuring the pattern length and comparing the same with the desired pattern length, and adjusting the speed of rotation of the pattern applicator roll if the measured pattern length departs from the desired pattern length by a predetermined amount. Preferably, coil line speed is also monitored. A microprocessor may be used to effect the comparison between the desired pattern length and the actual pattern length. Apparatus for creating a registered pattern on a metal coil includes a pattern applicator roll which has the strip from the coil moved into contacting relationship therewith, an appropriate drive motor to drive the roll, and apparatus for monitoring coil line speed, pattern length and motor speed.

Abstract: A method of providing a material, typically a metal, surface on a substrate (1), comprises applying a consumable member (4) to the substrate (1) under pressure. The member (4) and substrate (1) are moved relative to one another along an arcuate path. Heat is generated at the interface between the member and the substrate so that material is laid down on the substrate along the path. The movement of the metal member (4) typically includes one or more cyclic components.

Abstract: A convertible coating apparatus provides one or two side coating of a web having wet ink thereon to permit both printing and coating to be carried out prior to any drying operation. The apparatus includes a coating applicator roller in contact with a relatively hard back-up roller. The coating applicator roller is supplied with coating in both the one and two side operations while the back-up roller is supplied with coating only in the two side operation. Water is supplied to the back-up roller in the one side operation and the back-up roller has a hydrophilic surface which, when supplied with water, repels the wet ink on the web passing through the couple and prevents smudging and offset of the ink to the back-up roller. A method of carrying out the one and two side coating is also disclosed. A turning roller is also provided which guides the freshly inked web between inking operations without smudging the ink on the web.

Abstract: The applicator roller (2) can be driven in both directions of rotation. For coating the web of material (3) in the counter-directional mode, a distributor roller (6) is brought up to the applicator roller. In that way it is possible for the film of liquid (1) to be taken from the same reservoir zone (5) as in the co-directional mode of operation. That saves shifting the metering roller (4) which remains at the same position both in the co-directional mode and in the counter-directional mode of operation.

Abstract: A method and apparatus for manufacturing elastomer coated bias fabric are disclosed wherein the fabric is conducted in a horizontal path as it is transversely stretched and coated with an elastomeric composition; using an externally driven roll coater, the elastomeric composition is applied to one surface of the fabric from where it is forced through the interstices of the fabric to the opposite surface whereby both surfaces of the fabric are coated with elastomeric composition.

Abstract: The end portions of a flexible strip (46,48,50,52) are deflected from the path (54) of an automatic end cementer (10) along which the strip (46,48,50,52) is moved into engagement with cement appliers (62,94) spaced from the path (54). The weight of the unsupported leading end portion (92) causes the end (56) of the strip (46,48) to be deflected downwardly into contact with a cement applier (62) adjustably positioned below the path (54). The trailing end portion (58) is deflected upwardly by changing the direction of the path (54) for the strip (50,52) to lift the trailing end portion (58) from the path (54) into contact with a cement applier (94) adjustably positioned above the path (54).

Abstract: An apparatus and method for applying adhesive to the open ends of containers having oppositely disposed front and rear wall panels, oppositely disposed side panels, and a center line parallel to the front and rear wall panels and aligned with the center of the side wall panels. The apparatus includes a conveyor for moving the containers along a line of movement through an adhesive application area. The containers are substantially immovably supported during adhesive application procedures. A pair of rotary adhesive applicators apply adhesive to the edges and portions adjacent such edges of an open end of the containers. These rotary adhesive applicators each have a central axis which is oriented in a non-normal relationship to at least one of the center line and line of movement of such containers, and are arranged relative to the conveyor such that as the containers pass the applicators, such applicators contact the edges of an open end of the container panels.

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: A coating apparatus for the scratches of a glass bottle comprises: a rotary disc for rotating and transferring the bottle; a coating roller which is eccentrically provided and applies coating liquid to the barrel surface of the bottle transferred by the rotary disc; a feed roller for feeding the coating liquid to the periphery of the coating roller and a feed member for feeding the coating liquid to the feed roller; a driving unit for rotating the feed roller together with the coating roller and a control equipment for controlling an output of the driving unit; and a bottle holding member for holding the upper and the lower portions of the bottle when the application of the bottle with the coating liquid is performed by the coating roller; wherein, the rotational speed of each of the above rollers is controlled by the control equipment.

Abstract: Disclosed is an overvarnish unit for applying varnish to a web of printed material as a protective overlay. The overvarnish unit includes a varnish fountain for receiving paste varnish, a form roller, and a plurality of rollers intermediate the fountain and form roller. The form roller engages an impression cylinder roller forming part of a printing assembly. The varnish is transferred from the fountain to the form roller by the intermediate rollers which also mill the varnish as it is being transferred to reduce its viscosity. The form roller is driven at a peripheral speed greater than the linear speed of the web over the impression cylinder roller. This form roller overspeed provides a smearing action in applying the varnish to the web rather than a one to one or line by line printing action thus achieving control over the thickness of the applied varnish and the appearance of the final product.

Abstract: Machine and method for applying liquid coatings to cylindrical articles such as plastic continues, in which each article during movement by a rotary transport is caused to spin about its cylindrical axis and a liquid coating is applied to the cylindrical surface of the spinning container. A wiper spreads the coating uniformly and a drier dries the coating. The ratio of orbital movement of the containers and the rate and direction of spin of the containers may be adjusted and controlled.

Abstract: An apparatus to apply uniform amounts of adhesive to containers at a high rate of speed. Containers are selected at a variable interval. The containers are positioned against dual spiral timing screws (one timing screw above the other). Turning the timing screws a constant (but adjustable) number of degrees with respect to each other while they rotate at the same speed will either advance a container in a level position or they may be advanced while tilted, forward or backward depending upon the relative position of the upper and lower timing screw. While the container is advancing, it is also being turned so that the upper surfaces of the container may be positioned against a rotating cylinder to which a layer of adhesive is continuously applied. In this manner adhesive may be applied around the entire circumference of a container on the top, inside edge, outside edge or both edges.

Abstract: A method of applying a latex coating to a carpet secondary backing by means of an applicator roll and a metering roll which travel in reverse rotation and different tangential speeds. The carpet secondary backing travels between a pressure roll and the applicator roll and a film of a coating material is applied to the backing. The backing is an open weave structure and the coating is applied primarily to the strands of the backing and not particularly to the open area of the backing.

Abstract: The coating device of the invention, which enables a layer of product to be deposited on a strip (1) travelling between two rotary cylinders (2, 3), is characterized in that it comprises a reserve (8) containing the coating product; a first roller (9) associated with the reserve for continuously taking therefrom a specific amount of coating product; a second roller (10) bearing against one of the rotary cylinders (3, 2), the first and second rollers being parallel and spaced from each other; a third loosely mounted roller (11), bearing on the first and second rollers; means (M.sub.1) for rotating the first roller and imparting thereto a constant preadjusted speed; and means (M.sub.2) for rotating the second roller and imparting thereto a speed equal to the travelling speed of the strip, the first and second rollers rotating in the same direction .

Abstract: A method of and an apparatus for coating flowable and pasty materials onto a workpiece, especially for the application of glue and other adhesive substances to the backs of signatures in book binding and the like, uses a rotating roller for applying the material which is partly immersed in a bath thereof and a reversible drive for the roller such that initially the roller is rotated in the direction of movement of the workpiece so as to pick up a thin layer of the material and, as the leading edge of the workpiece reaches the point at which material application commences, the direction of rotation is reversed while the workpiece continues its travel, thereby applying material in a uniform coating without the formation of a glob at the leading edge of the workpiece. Within the reservoir there is provided a dosing chamber having a pair of edges defining gaps with the roller, the upper gap being wider than the lower gap.

Abstract: Liquid is applied to absorbent material, preferably menthol solution to foil-backed paper for use in packaging menthol cigarettes, in uniform and controlled manner.