Abstract: An information processing apparatus includes a sensor that detects a property of a specific sheet, and a processor configured to output information about a sheet that satisfies a set condition regarding a relationship with the property detected by the sensor. The sensor includes at least an infrared sensor that detects the property by emitting an infrared ray to a sheet or an electric sensor that detects the property on the basis of an electrical resistance.

Abstract: A method for three-dimensional printing for forming a three-dimensional structure on a moving platform is provided. The three-dimensional structure includes a shell portion and a foamy filling portion. The method includes the following: a digital shell model of the three-dimensional structure is built. Next, the digital shell model is sliced into a plurality of cross-section information. Next, a corresponding liquid forming material is cured on the moving platform according to the cross-section information to form a plurality of shell layers. Next, foaming process is performed on the liquid forming material to form a foamy forming material. Next, the foamy forming material located within the corresponding shell layers is cured to form a plurality of foamy filling layers. Afterward, the shell layers and the foamy filling layers are alternately formed on the moving platform and stacked to form the three-dimensional structure. A three-dimensional printing apparatus adopting the method is also provided.

Abstract: An apparatus for applying adhesive to a tile comprises a container for receiving the adhesive to be applied to the tile. The container defines a downwardly-opening orifice through which the adhesive is enabled to pass out of the container. The apparatus further features a substantially horizontally extending track coupled below the container and adapted for supporting the tile in sliding movement underneath the orifice from an inlet side of the orifice and past the orifice to an outlet side thereof so that the adhesive received in the container passes out of the orifice and onto the tile.

Abstract: An exposure molding device comprises an exposure tank, a working platform, and an optical system. The exposure tank has a first surface and a second surface. The working platform is disposed relative to the first surface. The optical system disposed relative to the second surface comprises a light emission element and an optical assembly. The light emission element emits light along an optical path. The optical assembly comprises a light transparent element, a first optical element, and a first transmission mechanism. The light transparent element is disposed on the optical path, the first optical element is disposed behind the light transparent element on the optical path, and the first transmission mechanism is disposed along a first direction and connected with the first optical element for driving the first optical element to move along the first direction. The molding range is expanded. The accuracy, velocity and quality of molding are enhanced.

Abstract: The invention relates to a beam melting installation and method for producing components thereof, in which a component to be produced is produced layer-wise, wherein, a coating slide moves across a build platform, a powder layer is applied onto the build platform and already produced component layers by a blade fastened on the coating slide, and melt traces are subsequently inscribed in the powder layer by means of a directed beam, so that the powder melts in the melt trace and bonds to underlying component layers, wherein, during the travel of the coating slide in order to apply a new powder layer, perturbations of the travel of the coating slide or components connected thereto are metrologically detected, and in particular the beam melting installation is controlled and/or regulated as a function of the detected measured values. The invention furthermore relates to a device for retrofitting beam melting installations.

Abstract: This viscous material feeder includes a nozzle to discharge a viscous material stored in a storage portion storing the viscous material and a feeding mechanism transferring the viscous material from the storage portion to the nozzle and discharging the viscous material from the nozzle. The nozzle has a bent feed route to guide the viscous material from the storage portion to a tip of the nozzle and is configured to be dividable along the bent feed route.

Abstract: A device for applying glue onto labels, includes a drum rotatable about a predetermined rotational axis and, a glue application unit for applying glue onto an external surface of the rotatable drum. The glue application unit includes a receiving space for receiving the glue as well as a supply unit for applying the glue to the receiving space which is arranged relative to the drum such that any glue present in the glue application unit contacts the drum in a predetermined contact area. The glue application unit includes a first wall element, which contacts the drum during operation, and a second wall element arranged behind the first wall element in the direction of movement of the drum and which also contacts the drum. At least one wall element is elastically pressed against the external surface of the drum.

Abstract: The present invention is directed to improved screen printing squeegee blades, which include a first end, a second end, a top portion for receipt by a blade holder, a bottom portion adapted for contacting the screen of a screen printing press along at least one printing edge, a front face, a back surface, and a buckle control channel formed in either the front face or the back surface.

Abstract: Device for applying a protective material on one edge of a part, includes a body equipped with elements for applying the protective material on the edge, elements for calibrating the protective material in terms of height after application, at least one stop to position the body relative to the edge and elements for calibrating the edges of the protective material including two smoothing plates that rest respectively against the right and the left surfaces of the part adjacent to the edge, at least one of the two smoothing plates being movable relative to the other smoothing plate. The body includes at least one arm that supports a smoothing plate and pivots relative to the body around an axis of rotation so as to regulate the spacing between the two smoothing plates and return elements that tend to make the arm pivot so as to bring the smoothing plates close together.

Abstract: Device for applying a strip (B) of a viscoelastic material to a receiving surface (S) in relative motion (R) relative to said device, comprising a feed means and an application nozzle (1) having a body (11), into which said feed means (2) emerges, and a head (12) at the end of which there is an outlet orifice (122) of elongate shape in the transverse direction to the direction of the relative motion when the device is operating. The head (12) of the application nozzle (1) is linked to the body (11) of the application nozzle (1) via an articulation (10) which can be deformed along an axis (AA?) perpendicular to the direction of application of the strip (B).

Abstract: A squeegee device includes a squeegee that has a sliding contact portion in sliding contact with a screen mask, and that prints a solder on a circuit board through the screen mask, wherein an attack angle of the squeegee is adjustable. In the squeegee device, when adjusting the attack angle during a tooling change in which the type of circuit board is changed, positions of the sliding contact portion before and after adjustment substantially match.

Abstract: There is described an apparatus (1) for coating a cylinder (C), in particular a wiping cylinder of an intaglio printing press, with a plastic composition comprising inter alia a blade mechanism (4) comprising a single substantially planar blade (40) with a straight edge (40a) extending along the full length of the cylinder to be coated and which is mounted rotatably about an axis parallel to the axis of rotation of the cylinder to be coated. The blade comprises, at its terminal end proximate to the cylinder, an inclined end portion (4a) having an inverted-V shape rising from the upper side of the blade, the top edge of the inclined end portion forming the straight edge of the blade. The blade is adapted to be rotated so that the straight edge of the blade undergoes an upward movement substantially tangential to the periphery of the cylinder in order to discontinue the application of the plastic composition onto the surface of the cylinder.

Abstract: Disclosed is a coating die which can recover a coating solution to be wasted in a good manner, while suppressing adhesion of foreign matter onto an object to be coated. A coating apparatus comprising the coating die is also disclosed. Specifically disclosed is a coating die (30) for coating a web (2) with a paste (3), which comprises a main body (31) having a discharge opening (31e) for discharging the paste (3) upwardly, a recovery pan (32c) for recovering the paste (3) flowing out from the discharge opening (31e), and flow passage (grooves (32a, 32a) and shoots (32b, 32b)) which are integrally formed with the main body (31) for the purpose of guiding the paste (3) from the discharge opening (31e) to the recovery pan (32c).

Abstract: A rod bed assembly (1, 11, 111) has a holder (2) made of a composite material according to a continuous primary molding method, a rod bed (3) made of a polymer according to a continuous primary molding method, and a doctor rod (4) rotatably supported in a bearing recess (34) on the front side of the rod bed. The holder (2) is formed such that the rod bed (3) and the doctor rod (4) are insertable into and removable from a socket provided in the holder in the radial direction of the doctor rod (4). The rod bed (3) has closed cavities for saving material.

Abstract: An apparatus for coating web-shaped materials with a coating medium includes a rotating transfer roll that has depressions on its circumferential surface for transferring the coating medium, a coating chamber, and a nozzle carrier with several bored holes before the coating chamber in a motion direction of the transfer roll. Coating medium streams out of these bored holes in a free stream. The apparatus aims to achieve a uniform and reproducible coating of the web for various different application weights.

Abstract: A gluing mechanism incorporating a notched glue scraper and a method thereof are disclosed. A glue dispensing roller is provided adjacent to a web material traveling path where a web material is conveyed to get past, and operated to touch glue contained in a glue tank, and accordingly, a glue carrying roller surface of the glue dispensing roller is coated with the glue. A notched scraper blade, which faces the glue carrying roller surface of the glue dispensing roller, scrapes the glue stayed on the portion of the glue carrying roller surface, which corresponds with the non-notched area of the scraper edge. Comparatively, the glue stayed on the rest of the glue carrying roller surface is formed a glue layer for subsequently applying to a gluing side of the web material, wherein the rest of the glue carrying roller surface corresponds with notched area of the scraper edge.

Abstract: A drywall hopper assembly that contains a double blade that can apply drywall mud to both interior and exterior drywall corners with no blade change. A zigzag blade can contain two grooves, one for interior corners and one for exterior corners. With this blade arrangement, an operator can quickly move from one type of corner to another without using multiple tools, multiple blades or hand application methods to apply mud. The present invention can contain a pliable release port to present mud equally to an interior or an exterior corner. There can be such a port on both the top and bottom of the blade so that mud is smoothly applied as trim moves through the hopper or the hopper is moved along the trim.

Abstract: A doctor blade assembly for use in combination with apparatus for forming a film on a substrate. The doctor blade assembly includes a doctor blade to be mounted on a programmable robot. The doctor blade has a bottom face and spacers at opposite ends of the body of the doctor blade extending a predetermined distance down below the bottom face of the body for contacting a substrate and spacing the bottom face from the substrate. The spacers are adjustable relative to the doctor blade for adjusting the predetermined distance according to the thickness of film to be formed on the substrate. Other aspects and methods are also disclosed.

Abstract: Disclosed are fiber coating sizing applicator apparatus having a member to remove unused sizing and foreign objects from the fiber coating element of the applicator on a continuous or intermittent basis. Also disclosed are sizing applicators having as part of the drive, a servo motor for reduced variation in sizing application. Unused sizing is filtered to remove foreign objects and returned the applicator right away, or stored in a temperature controlled area until ready to feed back to a sizing applicator. Also disclosed are methods of using the sizing applicator apparatus to produce sized fibers. The apparatus and methods of the invention produce a substantial reduction in the fiber break rate, sizing usage and applicator maintenance.

Abstract: There is provided a tape core wire manufacturing apparatus that makes it possible to manufacture a large variety of tape core wires in small quantities with ease, and in addition, makes it easy to apply a uniform coating over a broad width. In the tape core wire manufacturing apparatus of the present invention, a coating apparatus that applies a coating material to respective optical fiber core wires has a coating head that moves in the longitudinal direction relatively to the respective optical fiber core wires that have been placed in a row on a coating jig. The coating head has a position adjustment surface that is located in the vicinity of a coating member of the coating head and adjusts the positioning in the thickness direction of the respective optical fiber core wires when these are in the form of a tape. This position adjustment surface is pressed against the respective optical fiber core wires. The coating head is also able to be tilted in the longitudinal direction.

Abstract: A method in connection with coating, comprising a running web (8) arranged to be coated with a coating mix (11), coating means (1) arranged in connection with said web (8), a coating surface (6, 7) at the coating means (1) and arranged in contact with said web (8) to dose said coating mix (11), and said coating means (1) being provided with at least a first coating surface (6) and a second coating surface (7), in such a way that it is possible at said running web (8) to switch between the one (6) and the other (7) surfaces while at least one of said surfaces (6, 7) is in an active contact position.

Abstract: A blade for creping a paper web from a dryer surface is provided, said blade having a sliding surface facing the dryer surface during use of the blade, a web impact surface upon which the paper web impacts during creping, and a working apex formed between the sliding surface and the web impact surface, wherein the working apex is located no more than 30 percent of the total blade thickness away from a neutral fiber of the blade. Preferably, the working apex of the inventive creping blade is located at or close to the neutral fiber of the blade. A method for manufacturing the blade is also disclosed.

Abstract: A doctor apparatus for a web forming machine for doctoring a moving surface with the doctor apparatus (10) has a blade (16), a blade holder (14) to which the blade (16) is adapted, a frame component (12) to which the blade holder (14) is adapted, and a loading element (23) arranged between the frame component (12) and the blade holder (14) for loading the blade holder (14) and further the blade (16). The loading element (23) is tied to both the frame component (12) and the blade holder (14). The invention also relates to a blade holder (14) and a method for a web forming machine for doctoring a moving surface (26).

Abstract: A drum assembly in a printing machine comprises a rotating drum having a surface and an applicator assembly for applying oil onto the surface. The applicator assembly includes a liquid supply containing a supply of oil, a distributor connected to the liquid supply for distributing the oil, and an applicator having an area for receiving oil from the distributor and an application edge. The distributor and the applicator are configured so that oil distributed on the area of the applicator forms a meniscus at the application edge. The application edge is positioned closely adjacent but not in contact with the surface of the drum at a distance sufficiently close to the surface so that the surface contacts the meniscus to withdraw oil from the applicator onto the surface.

Abstract: An electrode mixture paste (5) is applied on both sides of a strip of core material (1) as it runs along its lengthwise direction, and the coating thickness of the paste (5) is adjusted as the core material (1) coated with the paste (5) passes through a gap between a pair of scraper tools (16a, 16b). Tips (18) provided to the scraper tools (16a, 16b) scrape off the paste (5) to form a paste-coated portion of a predetermined width. The electrode mixture paste (5) scraped off with the tips (18) is returned through recesses (19) on the upstream side of the tips (18) in the running direction of the core material, so as to prevent the phenomenon where the coating thickness is increased at both side edges of the paste-coated portion. Thus, a method for applying electrode mixture paste is realized that can prevent the phenomenon where the coating thickness is increased at both side edges of the paste-coated portion and prevent process failures such as deformation of paste-coated sheet.

Abstract: Creping and cutting procedure and equipment, for paper manufacture which consists of a creping doctor (1) carrying a blade (2) which carries out the creping; a support plate (12) which can pivot on a pivot shaft (5) in the geometrical center of which the creping blade (2) works; primary means of actuation (3) which through the support plate (12) cause the rotation of the creping doctor (1) on a pivot shaft (4); and secondary means of actuation of variation of angle (6) which act on the support plate (12) and cause its rotation on a pivot shaft (5) ; in such a way that it is possible, with only two doctors (1), (7) to carry out the maneuvers of creping, blade changing, cutting and cleaning.

Abstract: A paper beading apparatus, includes a hopper having a body defining a chamber for holding a quantity of joint compound, and having an open upper end, an upper rim, and a lower end; a lid pivotally secured to the body for movement between an open position and a closed position, wherein in the closed position, the lid engages the open upper rim, the lid having a releasably sealable air port; and a base configured for and accommodating the hopper lower end, for receiving joint compound, and for applying the joint compound to a corner paper bead.

Abstract: Doctor blade for the paper industry, comprising a scraping plate (1) and holding means (p) for the scraping plate which in turn are held by a frame (a) the ends of which are securely fastened (2) by two fastening points (pf) to a stationary structure (f), characterized in that it comprises: a) mechanical means for adjustable fastening (3) between at least one end (2) of the frame and the stationary structure (f) in such a way that the distance (d) between the two fastening points (pf) can be varied by the user; and b) means for incorporating an additional mass (5) in adjustable quantities.

Abstract: Process and apparatus for applying single and multiple coatings of a liquid coating material to a continuously moving backing web, in which a free-falling, vertical curtain is formed out of the coating material and strikes the backing web along a wetting line. In particular, the present invention pertains to a process for producing heat-sensitive recording material. The backing web is pushed down over its entire width by at least one guide element before it passes through the wetting line, and is lifted by a support in the form of round element extending transversely to the direction of movement of the backing web after the web has passed through the wetting line, where the support also includes an air guide with an angle of 2-15° between the backing web and the top surface of the air guide means.

Abstract: A doctor blade system utilizes a lightweight doctor blade chamber to apply ink to an inking roller. The doctor blade chamber is removably positioned on a support plate which is, in turn, carried by linear guides on pivotable end plates. A rigid box beam is also attached to the end plates and is spaced from the support plate. A plurality of membrane cylinders are mounted on the rigid box beam and engage a surface of the support plate opposite to the surface that supports the doctor blade chamber. Through the application of suitable force, the support plate and its supported doctor blade chamber can be moved, by sliding motion on the linear slides, into uniform engagement with the surface of the ink roller. The system uses pivotable end plates which are supported by exterior plates that are, in turn, pivotably supported by press side frames.

Abstract: In a flux transfer unit to be used in an electronic component mounting apparatus for transferring flux to an electronic component picked up from a component feed unit and then mounting the electronic component onto a board, a blade holding head which has a first blade and a second blade for film formation use and scraping use of flux, respectively, and which is reciprocatively driven by a rodless cylinder via a drive transmission pin, is held by a movable member so as to be swingable about a swing support pin, and the movable member is braked with a specified braking force by a plate spring member. Thus, each time the direction of motion of the blade is reversed, the blade holding head swings, so that the first blade and the second blade can be automatically switched over without providing any exclusive drive mechanism.

Abstract: Disclosed are fiber coating sizing applicator apparatus having a member to remove unused sizing and foreign objects from the fiber coating element of the applicator on a continuous or intermittent basis. Also disclosed are sizing applicators having as part of the drive, a servo motor for reduced variation in sizing application. Unused sizing is filtered to remove foreign objects and returned the applicator right away, or stored in a temperature controlled area until ready to feed back to a sizing applicator. Also disclosed are methods of using the sizing applicator apparatus to produce sized fibers. The apparatus and methods of the invention produce a substantial reduction in the fiber break rate, sizing usage and applicator maintenance.

Abstract: A cradle for a film, coating, or sealing rod has a profile (10) that includes a base part (11), a rod groove (16), and a body part (14) between them. The rod groove (16) is arranged to receive the rod (12) between lips (20, 20?) edging the rod groove (16). The circumference lying against the rod (12) is formed at least partly of a slider piece (22), which is an insert-molded part of the profile (10), and which is of a material other than the material of the base part (11) and the body part (14).

Abstract: A doctor method and apparatus is disclosed and includes a doctor roll (12) supported in a coater (1) suitable for applying coating to a paper web surface or a roll surface (4) for subsequent transfer to the paper web. The doctor includes a doctor roll (12), a support (11) for the doctor roll (12), a front support (3) for holding the roll support (11) and a rear support or retainer (18) cooperates with and helps stabilize the support (11) and doctor roll (12). The present invention minimizes the variation moving of the doctor roll (12) has on the coating on the moving surface (4), be it web or roll, and thus can improve coating quality.

Abstract: A machine for creping sheet material such as paper, textiles, metal foils, or plastic, comprises a driving drum, and a pressing plate for pressing a length of sheet material against the drum to drive the material lengthwise in the machine direction, and a retarding member arranged to contact the lengthwise-driven sheet material to cause it to crepe. The pressing plate has a plurality of pressure application points or areas distributed across the width of the sheet material on the drum, the pressure application points or areas being associated with pneumatic cylinders for applying different pressures to different parts of the material across its width according to a given pressure profile. The pneumatic cylinders can be arranged in groups to provide an adjustable pressure profile across the material wherein the pressures applied at the opposite edges of the material and at intermediate parts of the material are adjustable independently of one another.

Abstract: A creping foil having a machine direction, cross machine direction, and Z-direction normal to a plane formed by machine direction and cross machine directions. The creping foil also has a front face, back face, and bottom side. The front face has one or more top conduits with one or more upper pipes integrally mounted therein. The one or more upper pipes are rotatable about an axis in the cross machine direction and have one or more upper diameter holes. The bottom side has one or more bottom conduits with one or more lower pipes integrally mounted therein. The one or more lower pipes are rotatable about an axis in the cross machine direction and have one or more lower diameter holes.

Abstract: A device for the detachable fixing of a holder for a doctor blade located in a paper production plant, it being possible for the doctor blade, which is assigned to a supporting or guiding roll for the wire, for the felt or for the paper web, to be set in its position with respect to the supporting or guiding roll by way of an actuating device and, furthermore, it being possible for the holder for the doctor blade to be displaced on a support for the holder by way of a guide at least approximately in the axial direction of the supporting or guiding roll and fixed on the support in the operating position. A pressure hose is disposed between the holder for the doctor blade and the support. The pressure hose allows the holder for the doctor blade to be clamped to the support.

Abstract: The present invention relates to a doctor blade comprising: a body having a thickness, a sharp leading side, a trailing side, and working end comprising a bevel surface, wherein the bevel surface is defined by a leading edge and a trailing edge, and wherein the Ra of the bevel surface is from about 1 ?-in to about 7 ?-in.

Abstract: A device for applying a medium in the form of a liquid or a paste to a moving substrate, the substrate being a surface of a web of paper, a paper board, fibrous material and/or a transfer element including an application chamber, a first element, a second element and at least one limiting element. The first element is associated with the application chamber on an output side of the application chamber in a direction of movement of the moving substrate. The second element is associated with an input side of the application chamber. The at least one limiting element is associated with a lateral end of the application chamber. The at least one limiting element adjusting a width of application of the medium on the moving substrate. The at least one limiting element having a flexible sealing plate that substantially seals a space between the moving substrate, the first element and the second element.

Abstract: A composite doctor arrangement for a web forming machine or web handling machine has a beam structure (10) with a mounting piece (13) fitted to it. A blade holder (11) is fitted to the mounting piece, with a blade (12) fitted to the blade holder (11). The mounting piece (13) is fitted axially and movably in the beam structure (10) by a form-locked mounting counterpiece (14), where the form locking is arranged so that it is fixed in the lateral direction of the blade (12) and essentially free in the longitudinal direction of the blade (12).

Abstract: The present invention relates to a segmented squeegee for depositing a medium onto a surface, such as depositing solder paste onto a printed wiring board. The segmented squeegee may include a plurality of independent squeegee segments or elements, a support structure and a plurality of independent connections or linkages connecting the squeegee segments to the support structure. The segmented squeegee may be used in connection with a conventional stencil such that the independent linkages and the squeegee segments may be structured and arranged to maintain substantial contact between the stencil and the printed wiring board.

Abstract: A sealing assembly for an ink chamber associated with an anilox roll, includes a doctor blade having a doctoring edge, with each end having a notch at the doctoring edge, and first and second seals adapted to seal ends of the ink chamber. Each seal includes a peripheral supporting wall, an upper wall thereon including an upper concave surface for engaging an outer surface of the anilox roll, a flat upper supporting surface at opposite ends of the upper wall on which ends of the doctor blade seat, and an extension above the flat upper supporting surface for engaging within the notch at the end of the doctor blade to permit the doctor blade to bend thereat. A lubricant chamber is defined therein and the upper wall includes an opening through which the lubricant is forced out of the lubricant chamber due to external pressure.

Abstract: Two embodiments of end seal design are described, each having preferably three seal lips, one of which differs in the center of its radius of curvature from the center of radius of curvature for the other two seal lips. The end seal is gently spring loaded. In this way the end seal provides a good seal and minimizes spray, spatter, and slinging, and can accommodate various plunge depths and can accommodate various angles of attack of a nozzle upon an application surface such as a web or applicator roll. The nozzle is able to have any of various user-determined angles of attack upon the application surface.

Abstract: A creping blade including a body having a leading side, a trailing side, and working end including a bevel surface. The bevel surface is defined by a leading edge and a trailing edge, wherein the trailing edge of the creping blade has a trailing edge radius of greater than about 0.001 inches (about 0.0254 mm).

Abstract: The aim of the invention is to achieve a rapid, homogeneous application of a liquid with as little force as possible to a substrate. To achieve this, the invention provides a nozzle assembly (22) for applying a liquid to a substrate, said assembly having a nozzle body (26) comprising a plurality of nozzles (36) that are substantially arranged in a line and a guide plate (28) that extends essentially in a vertical direction with a straight lower edge. According to the invention, the nozzles (36) above the lower edge are directed towards the guide plate (28) in such a way that a film of liquid forms on the guide plate (28) and flows over the lower edge (64).

Abstract: Equipment for changing a blade (43) in a coating device (51) changes several blades (43) arranged in a band (43). The equipment includes reels (11, 40) connected to the ends of the blade holder (45), for holding the reeled unused and used band (43); transfer devices (13, 20) for moving the band (43) in connection with the blade holder (45), and lifting devices (17) for lifting the band (43) up and lowering it into the blade holder (45). Indentations (44) at least the length of the hollow shaft (52) are arranged at regular intervals on the band (43), and are arranged to permit the blade (43) to be lowered into the blade holder (45).

Abstract: A device for applying a liquid to pasty medium to a moving surface, the moving surface in the case of direct application being the surface of a paper, board or other fibrous web. In the case of indirect application the moving surface being the surface of a transfer element which transfers the application medium to the surface of the fibrous web. The device includes an applicator for applying the medium and a doctor device arranged downstream in the running direction of the moving surface for doctoring off and/or equalizing the medium applied to the moving surface. In order to collect excess medium that has not remained on the moving surface and/or has not reached the latter, a flexible collecting part covering the interspace between applicator and doctor device is provided, which extends transversely with respect to the running direction of the moving surface and parallel to the applicator and the doctor device.

Abstract: An fountain applicator for applying coating liquid onto a web of paper carried past the applicator, has a coating liquid flow path that includes a curved surface along which a sheet of the coating liquid is flowed to subject the sheet to centrifugal force to cause air entrained in the coating liquid to move away from one side of the sheet that is toward the curved surface, so that the one side is relatively free of entrained air. After being flowed along the curved surface, the sheet of coating liquid is directed toward the web in a free standing jet curtain of coating liquid, to contact the web surface primarily with the one relatively air-free side of the coating liquid sheet to decrease the occurrence of skip coating on the web surface, especially when the web is traveling past the applicator at high speeds. The coating is applied in excess onto the web surface and is metered and leveled to a desired coat weight by a downstream doctor.

Abstract: The present invention relates to a doctor blade comprising: a body having a thickness, a sharp leading side, a trailing side, and working end comprising a bevel surface, wherein the bevel surface is defined by a leading edge and a trailing edge, and wherein the Ra of the bevel surface is from about 1 ?-in to about 7 ?-in.

Abstract: Doctor blades are provided for multiple positions within a paper or board making machine. A single doctor blade of a standard length or a reel of doctor blade material has markings which permit a variety of doctor blade sizes to be readily cut. If a standard length doctor blade is used, the length of the blade is chosen to be at least as long as the longest doctor blade required for a particular papermaking machine. If the material is in a reel, the markings may be at regular numbered intervals. If a pattern of rivets is connected to the blade, and the rivets must have a given relationship with a blade holder, blade length may be marked out in such a way that some blade material is discarded in order to position the rivets when shorter blades are cut from the blade reel.