Abstract: The applicator roll of a single facer or a double facer glue machine has successive patterns with each pattern having different size cells from which a bonding agent may be transferred to the crests of corrugated paper. The applicator roll can be independently adjusted to change the phase of the cells relative to the crests of the corrugated paper to vary the amount of bonding agent transferred to the crests.

Abstract: Apparatus for applying a liquid to a cloth or the like including a stamp roll having a peripheral surface provided with a pattern of pits. A rubbing block, having at least one material supply passage extending vertically therethrough, is disposed above the stamp roll in such a way that a lower rubbing surface of the block is in sliding contact with the peripheral surface of the roll. A supply container is connected to the material supply passage of the rubbing block for supplying the liquid through the block to the peripheral surface of the stamp roll. A pressure roll is disposed below the stamp roll in abutting relation thereto to carry the cloth into intimate contact with the peripheral surface of the stamp roll.

Abstract: A process for applying exactly metered small quantities of liquid to web material, such as textile. The web material is passed through the nip of a pair of rollers. One of the rollers is provided with a film of liquid by means of an applicator roller which is partly immersed in a liquid bath and which rotates in contact with it. The applicator roller has a surface provided with raised portions and recesses, which makes it possible to apply the liquid in small, reproducible dosage.

Abstract: A control system for controlling the width and position of glue, ink or the like applied from a pan to a roll for applying the glue to a running web. Any out-of-trueness of the web or change in its width is detected by sensors and two dams mounted in the pan are moved to new suitable positions by motors actuated in response to a signal from the sensors.

Abstract: A coating apparatus for coating a moving web is disclosed. A scraper element is provided, transverse to the direction of travel of the web, for scraping excess coating material therefrom. The scraper element has three positions: a rest position, in which it is relatively distant from the web; a ready position, in which it is maintained a short distance from the surface of the web, preferably about 1 mm; and an operating position, in which it is pressed against the web. A positioning member includes a first subsystem for moving the scraper element from the rest position to the ready position and a second subsystem for moving the scraper element from the ready position to the operating position. The second subsystem preferably contains a pneumatic pressure element, and the first includes either a pneumatic or a hydraulic pressure element. The two subsystems are connected to each other in series.

Abstract: A textile piece 10 to be coated with rigidizing plastic supplied by a compressing cylinder 12 is fed through a nip zone between the cylinder and a driven roller 16 by conveyors 15, 17. The compressing cylinder is mounted between pivotable levers 18, 19 counterweighted in one direction, and urged in the opposite direction to squeeze the fabric by a lateral array of pneumatic cylinders 21. The cylinders are individually controlled by a lateral array 13 of photocells which continuously sense the width of the incoming textile piece, whereby the nip zone force is automatically controlled as a function of fabric width to provide a uniform coating pressure on irregularly shaped or oriented textile pieces.

Abstract: An apparatus for stiffening textile pieces 10 by coating them with plastic includes a printing or coating cylinder 16 and underlying pressure roller 18, and a subsequent tunnel dryer 42. The pieces are fed through the printing and drying stations by separate conveyor belt mechanisms 13, 14, 15 longitudinally movable away from the printing station to enable easy access thereto for cleaning and servicing.

Abstract: Wipers are mounted on the opposite ends of a cylindrical glue wetting roll which direct the glue adhering to and moving upwardly with the flat end surfaces of the glue wetting roll first inwardly toward the axis of rotation of the glue wetting roll and then back to the glue pan. The glue applicator roll which picks up the glue from the glue wetting roll includes a ceramic coating about its annular surface which is contacted by the sheet material to which the glue is applied and by the picker fingers which pick the sheets from the roll.

Abstract: A method and apparatus are disclosed for use with a paper coater located on a backing roll of, for example, a papermaking machine. In the method, apparatus in the form of a hinged bridge is used to collect excess coating liquid from a remote doctor blade or a first coater having such blade and supply the same to a second coater. The bridge may be mounted to the doctor blade or the first coater so that it can be placed in a bridging position accommodating various angles of the doctor blade, or in a second stored position wherein it will not interfere with the operation of either coater or the doctor blade.

Abstract: A preferred embodiment applies ultra-thin solvent base coatings to tape substrates with a "gravure roll" and associated elastomeric applicator roll, the applicator roll being sheathed by a flexible, solvent-resistant sleeve.

Abstract: In an apparatus for coating fabric sheets with plastic stiffening strips and including a conveyor 15 for feeding sheets through the nip between a drive roller 16 and a printing cylinder 14, a flexible doctor blade 20 wipes unused plastic and fluff contaminant from the cylinder. The wiped material falls into a collecting trough 21 and is screw conveyed to a supply reservoir 24, from which it is filtered and pumped back to the printing cylinder feed reservoir 18 under the control of a level sensor 19 mounted therein.

Abstract: A device for spreading paste on paperboard in a corrugated board manufacturing apparatus is herein disclosed. The device comprises a supplier for supplying liquid paste, a roller for spreading the liquid paste on tops of core paper to be pasted with linerboard, a member for controlling the volume of the liquid paste, a paste feeding member provided under the supplier downwardly inclinedly toward the paste spreading roller to define a passage for the liquid paste, at least a pair of movable end plates provided in the forward end of the paste feeding member and defining a certain clearance between the upper surfaces thereof and the paste spreading roller and a feed portion defined by the end plates to communicate with the passage. The width of the feed portion is adjustable by movement of the end plates in conformity with the width of the core paper between a minimum effective width and a maximum effective width.

Abstract: In applying a specimen to a carrier pre-wetted with an electrolytic solution, the disclosed applicator electrically measures the wetness of the carrier and controls the application of the specimen to the carrier based on the thus detected wetness so as to ensure uniform application of the specimen to the carrier.

Abstract: An applicator 15 deposits a solvent-carried adhesive intermittently along a moving strip 10. A sump 26 is arranged below strip 10 to contain a quantity of the solvent 27, and an adhesive wheel 16 rotates with its lower region immersed in the solvent. Adhesive wheel 16 has a continuous periphery on which adhesive is continuously applied, and an applicator wheel 17 rotates against the adhesive wheel and the bottom of the strip above the sump. Applicator wheel 17 a as an intermittent peripheral surface 18 that receives adhesive from the adhesive wheel and applies it in an intermittent pattern to the bottom of the moving strip. The sump, the adhesive wheel, the applicator wheel, and the region of contact between the applicator wheel and the strip are enclosed to retain a substantially saturated solvent vapor atmosphere within the enclosure 25 to inhibit the evaporation of solvent from the adhesive.

Abstract: A metered film of a fluid coating composition (10) having solids suspended therein, such as a fluid composition containing rupturable microcapsules, is formed on a doctored gravure supply roll (12) and applied to a soft rubber applicator roll (20). The supply roll (12) transfers the metered coating composition (10) to an endless web (25) which is wrapped and tensioned therearound in substantially uncompressed contact, to transfer the metered coating composition uniformly and evenly to the web (25) without shearing the composition (10) when on the web (25) or mechanically pressing the solids therein into the web (25).

Abstract: A method and apparatus for positioning a wedge in a web coating machine utilizes hydraulic actuating cylinders for moving the wedge and a multicylinder constant displacement pump for operating the hydraulic actuating cylinder. Valve circuits are provided to transmit trains of pulses generated by the pump to a selected port of the hydraulic actuating cylinder and a valve circuit is provided to select the cylinders of the pump utilized to operate the hydraulic actuating cylinder. Each cylinder of the pump generates volumetrically metered pulse trains of pressurized hydraulic fluid and the valve circuits transmit selected numbers of pulses from selected pulse trains to the hydraulic actuating cylinder for a time period equal to a multiple of the cycle time of the pump.

Abstract: Wipers are mounted on the opposite ends of a cylindrical glue wetting roll which direct the glue adhering to and moving upwardly with the flat end surfaces of the glue wetting roll first inwardly toward the axis of rotation of the glue wetting roll and then back to the glue pan. The glue applicator roll which picks up the glue from the glue wetting roll includes a ceramic coating about its annular surface which is contacted by the sheet material to which the glue is applied and by the picker fingers which pick the sheets from the roll.

Abstract: The shaft of a lockdown assembly is supported at its ends in the side sections of the stationary frame of a glue applicator. Lockdown legs are mounted to the shaft at each end of the shaft and extend parallel to each other from the shaft toward engagement with the side sections of the movable frame of the glue applicator. A spring biases the lockdown legs toward their locked positions. The shaft can be pivoted to raise the lockdown legs away from the movable frame, the movable frame tilted so as to lift its rolls away from their operating positions with respect to the rolls of the stationary frame, and a hook of one of the lockdown legs engages a catch on one of the side sections of the movable frame to hold the movable frame in its open position.

Abstract: A DIP top coating apparatus including a gravity-fed rail along which DIPs may slide, a continuously running inking mechanism disposed above said rail for applying ink to the tops of DIPs passing thereunder, and means disposed beneath said rail for insuring that proper contact is made between the inking apparatus and the DIP tops.

Abstract: A lightweight, easily portable apparatus for treating a mop head, dust cloth and the like with a dust attracting liquid includes a lightweight plastic container having spaced walls and an open top for holding a quantity of the liquid and a lightweight, removable frame structure fitted onto the container whereby the frame structure is separable from the container for cleaning, storage and handling. The frame structure has a front portion with a plate member thereon for supporting the mop head and said plate may be transparent whereby the condition and quantity of liquid in the container can be visually determined. Spaced arm members are connected to a rear portion of the frame structure adjacent opposite side walls of the container and have lower portions extending downwardly into the interior of the container and upper portions extending upwardly from the container.

Abstract: This gumming apparatus is intended for use primarily with continuous web business form processing machines. The apparatus includes a gumming cylinder disposed transversely of the continuous form conveyor of the machine to apply gum at equal intervals along the length of the continuous web. The cylinder is mounted in an adjustable slide assembly which permits rapid removal of the cylinder for replacement by another cylinder of a different size to suit a different size of business form. The removable cylinder includes an end gear driven by a drive assembly which includes a swinging gear to permit rapid replacement of the cylinder. A second conveyor for depositing inserts onto the continuous web is speed coordinated with the web conveyor by means of a removable conveyor drive gear which is driven by the drive assembly and also includes a swinging gear to permit replacement of the drive gear at the same time as the cylinder is replaced.

Abstract: A rotary envelope machine gum box construction is taught which provides an independent frame assembly of the meter roll and gum pond elements. The independent frame is pivotally secured to the primary machine frame at one end of the independent frame with micro-adjusting jack screw abutments at the other independent frame end. Differential adjustment of the jack screws will skew the meter roll axis to the picker roll axis. The edge line of the doctor blade may be skewed relative to the meter roll surface by push/pull screws between the independent frame and the doctor blade ends. Liquid gum is pumped from a remote supply reservoir, the gum box pond level being controlled by a fiber optic liquid level sensor which regulates the gum pump operation. Gum is delivered from the pump to a removable manifold block which distributes the gum to the pond ends for a nonstagnation zone, end-to-middle pond flow pattern.

Abstract: A traveling web coater for applying a smooth uniform layer of liquid coating of controlled weight onto the surface of a traveling web including a gate coater having a plurality of gate rolls for metering and applying coating to a traveling web supported on a backing roll with an air knife positioned to direct air onto the web downstream from the gate rolls and to essentially smooth the coating removing a minimum amount of the coating which has been accurately metered by the gate rolls.

Abstract: A viscous coating such as ink or material for surfacing a medium is transferred under pressure from a pressure chamber within a wetting container through a regulating opening and impinges on the surface of a transfer roller in such manner that the flow from the regulating opening is counter to the direction of rotation of the applicator roller. The required quantity of viscous coating medium on the applicator roller is transferred directly onto either a medium conveyor, a printing form or an inking roller.

Abstract: A process and apparatus for coating only one side of a metal strip with a molten metal, by continuously conveying a cleaned and heated strip of metal through a protective gas atmosphere above the level of a melting bath of the molten metal. The metal strip is supported on a reverse side thereof in the area of contact with the molten metal, and with the obverse side of the strip out of contact with the bath itself. The molten metal is conveyed by means of a scoop roller towards the supported area of the strip and only the scoop roller is immersed in the melting bath and only for a part of its surface area.

Abstract: An oil coater for mats which comprises a mat-supporting moving surface, a coating roller disposed above said mat-supporting moving surface and having on the periphery thereof a foam layer capable of being impregnated with an oiling composition, a press roller having a diameter smaller than the diameter of said coating roller and having on the periphery thereof a foam layer capable of being impregnated with an oiling composition, a first bearing mechanism which supports said press roller at a position upstream of said coating roller so that the top face of said press roller is substantially on the same horizontal plane with the top face of said coating roller and the degree of pressed contact between said coating roller and said press roller can be adjusted, a mat-feeding roller disposed below said mat-supporting moving surface, a second bearing mechanism which supports said feeding roller so that the axis of said feeding roller is substantially on the same vertical plane with the axis of said coating roller a

Abstract: This invention is an improved applicator for coatings. It is particularly useful for applying hot-melt adhesives in the manufacture of corrugated board. The applicator consists of an apertured manifold from which adhesive flows in parallel ribbons onto a transfer roll. This, in turn, prints it on the tips of the flutes at the single facer or double backer. The manifold is center fed and is equipped with motor-driven, axially adjustable pistons to adjust the width of adhesive spread to the width of surface being coated or bonded. An air purge system operating from within the pistons effectively removes any residual material from the orifices when the pistons are advanced toward the center of the manifold. This prevents plugging from adhesives setting up in the unused orifices. The purge system can also be used to clear orifices that become plugged during operation or to completely remove all adhesive from the manifold.

Abstract: A machine for painting sheet strip material has a backing roll for the sheet strip material, two paint coating devices, and means for positioning the paint coating devices alternatingly in an operative position and a non-operative position in relation to the sheet strip material passing over the backing roll.

Abstract: An electrophotographic developing apparatus comprises a developing roller and a refreshing roller. The developing roller applies liquid developer to an electrostatic latent image carrier moving in a predetermined direction. The refreshing roller comes into contact with the developing roller and rotates at the same peripheral speed as that of the carrier and in the opposite direction to the moving direction of the carrier. The rotational motion of the refreshing roller causes the developing roller to rotate so as to effect developing the electrostatic latent image on the carrier.

Abstract: A method and apparatus for the preparation of a manifold sheet having a relatively smooth, curl-free coating of a reactive composition on one side of a manifold sheet and a relatively smooth curl-free coating of rupturable encapsulated material on the opposite side of the manifold sheet, wherein the coatings are applied simultaneously to both sides of the manifold sheet in a single coating pass and without the application of pressure for smoothing either of the coatings.

Abstract: The invention is an improvement in an apparatus for developing sheets of diazotype copying material by the semi-dry process and includes at least two rotatable rolls being biased together with a gap between them for passage of the sheets of diazotype material, with an additional force being exerted on at least one of the rolls which force transfers a plane of deflection of one of the rolls to a position outside of a principal plane in which axes of the rolls are located in such a manner that a first line of intersection between the plane of deflection and the shell of the aforesaid one roll, starting from which line of intersection the deflection is directed toward the roll axis, extends in front of the gap, when viewed in the rotational direction of the roll, first guides to bring sheets of diazotype copying material into contact with the roll at a first transition line between the first line of intersection and the gap, and second guides to lift the sheets off of the roll behind the gap at a second transiti

Abstract: A device for moistening a blood serum bearing film before it is wetted with a buffer solution comprises a conveyor roller assembly including a first roller having its surface layer formed of sponge and partly maintained in immersion in a buffer solution and a second roller disposed above and in abutting relationship with the first roller, wetting means for passing a blood serum bearing film between the rollers to supply a buffer solution thereto from the surface layer, and a vapor ejection tube disposed adjacent to the both rollers for spraying a vapor to the film before it is wetted.

Abstract: Heat activated, fabric conditioning products are made by impregnating a thick, absorbent substrate with fabric-conditioner chemicals. Such products are designed for use at elevated temperatures encountered in laundry dryers. This invention provides a process for impregnating the substrate with liquid fabric conditioning chemicals. By limiting the volume of impregnate in contact with the substrate during compression of the substrate in a nip, precise control is obtained over both the quantity of impregnate and the uniformity of the impregnate in the substrate. It is critical that the volume of impregnate available at the nip be limited to a volume equal to or less than the apparent void volume of the substrate when compressed to a thickness equal to the nip gap.

Abstract: An apparatus for developing diazo material according to a semi-dry process comprising an applicator roll with a liquid absorbing cover, a press roll having a grooved hard surface, a backing roll biased against the press roll, and a blade for reducing the amount of developer liquid on the applicator roll and the press roll. The press roll is displaceable toward the applicator roll. The plane of transport of the diazo material to be developed passes between the applicator roll and the press roll. The axial moment of inertia of the press roll relative to the axial moment of inertia of the applicator means is determined in accordance by an equation containing weight components of the press roll, weight components of the applicator roll, the contact pressure component of the backing roll, and the sum of the components of the tangential force and normal force of the contact pressure of the blade and the frictional force along the line of contact of the blade on the applicator roll.

Abstract: A cutting apparatus for severing portions of identical length from a strip. This cutting apparatus comprises a feed means which is coupled to a drive means and which is adapted to feed the strip to a pair of advancing rolls located between the feed means and a cutting element. One of these advancing rolls is coupled to the drive means and is provided with a cam surface having a larger radius than the remaining roll surface. This cam surface, together with the other advancing roll, is adapted to engage the strip to move the strip forward towards a pair of receiving rolls through a distance determined by said cam surface. The central axes of the receiving rolls lie in a plane that is parallel to the plane through the central axes of the advancing rolls.

Abstract: A process and apparatus for the patterned deposition of powdered thermoplastics adhesive material on the outer surface of a textile or other porous-flexible surface form, wherein there is first insertion raked in a pattern of depressions formed in an engraved component an adhesive powder material and then on this powder a further adhesive powder material is insertion raked in the depressions, so that both the powder layers superposed one on the other are taken up by the surface form which is positioned on the engraved component.

Abstract: A pressure roller for applying pressure to a sheet-like material passing between the pressure roller and an application roller for applying a layer of liquid to the material, as in the development of diazotype copies, comprises a plurality of relatively short constituent rollers connected to one another by connecting means which permit radial displacement of the adjacent constituent rollers relative to each other and wherein each constituent roller is urged toward the application roller by at least one resilient spring-like element. The pressure roller thus enables contact between it and the application roller with an even pressure, without significant sagging along its length, while allowing uneven areas of the sheet-like material to pass therebetween without affecting the force exerted over the entire nip between the rollers. Improved development of diazotype copies can thus be obtained.

Abstract: A method and apparatus for coating wherein the horizontal flow of coating liquid is restricted adjacent the ends of the coating roll to overcome foaming by high flow rates of liquid flow while avoiding fouling of the roll journals.

Abstract: A support member has a trough formed therein at one end thereof extending from the top and from side to side and containing liquid adhesive. First and second rollers are rotatably mounted in the machine in closely spaced adjacent parallel relation with their axes disposed in a plane perpendicular to the top and bottom of the support member. The first roller is partially immersed in liquid adhesive in the trough. The second roller is positioned above the first. Each of the rollers has a cylindrical surface having a plurality of circular notches formed therein in next-adjacent equidistantly spaced relation. Each of the notches has a V-shaped cross-section whereby the surface of each roller is a sawtooth. A rotating device is affixed to one of the rollers for rotating it thereby rotating the other roller in the opposite direction and moving a sheet of material between the rollers in a direction parallel to the top of the support member.

Abstract: A profiled roller for pressing sheet material evenly against a roller that applies a film of liquid to the material, without collecting or forming a meniscus of the liquid in the absence of material to be moistened, comprises on a core a sleeve composed of many contiguous identical rings each provided with a peripheral series of protuberances that recur n times circumferentially thereof with each ring turned circumferentially relative to a contiguous ring at an angle thereto of less than 360.degree./n. The tops of the protuberances, each having a surface area of less than 0.5 mm.sup.2, define a cylindrical roller outline and are spaced apart by a distance of 1.5 to 4 mm, providing between them open spaces that will not retain the liquid by capillary action. The opposite sides of each ring are formed with complementary profiles disposed circumferentially apart at the said angle so that the rings may be readily assembled in the required angular disposition on the core.

Abstract: A pan and an applicator roller supported thereby are pivotably supported for movement between operative and inoperative positions by a parallelogram link means including a gear segment. Actuator means is connected to the gear segment for rotating the same in opposite directions.

Abstract: A method for coating the photoresist by coating rollers onto a belt-like material comprising a perforated film carrier and a metallic foil laminated thereon. This belt-like material, which has so-called device holes or apertures punched off with a predetermined pitch and is particularly to be used for producing lead frames for IC devices, is wound around a back-up roller with its metallic foil facing outward to give a slight tension to the metallic foil. Thus, a uniform and continuous coating of the photoresist onto the foil may be obtained without any dents formed even at those device holes or apertures.

Abstract: A coating material such as a high viscosity, low solvent content paint is applied to metal strip by means of a coater which comprises a soft-covered take-up roll which draws coating material from a reservoir and coacts with a hard metering roll (from which excess coating material is continuously removed by a doctor blade), to form a metered film on the surface of the take-up roll. The metered film is transferred to a small diameter hard transfer roll from which it is in turn transferred to a soft covered applicator roll, by which it is applied to the strip. At each line of contact between two rolls or between the applicator roll and the strip the mutually contacting surfaces travel in opposite directions (i.e., the rolls all rotate in the same sense). Preferably the peripheral speed of the applicator roll is greater than that of the transfer roll, which is greater than that of the take-up roll, but the strip speed is preferably lower than that of the applicator roll.

Abstract: Apparatus and method for applying extremely thin coatings of liquid materials entering the apparatus at a viscosity in the range of up to 10,000 centipoises absolute viscosity through a combination of factors involving the use of at least four rolls of desired physical characteristics and roll speeds to continuously extract a relatively thick film from a pool of the liquid, reduce it to an ultra thin coating free of discontinuities, and unite the thin coating with a web.

Abstract: A method and mechanism for applying a smooth layer of coating to the surface of a traveling web including a backup roll for carrying the web on its outer surface through a coating smoothing zone along the periphery of the roll, a coating applicator ahead of the zone including an applicator roll and a coating backing roll to form a pressure nip, an air knife at the smoothing zone directing a curtain of smoothing air against the oncoming web, a saveall in advance of the zone, for directing and an exhaust system downstream of the zone with a baffle to generate a cleansing flow of air to remove the airborne coating particles from the upper lip of the air knife.

Abstract: An apparatus for applying a stripe to the surface of a continuous strip of film material. The film is drawn from a roll of film wound on a supply reel and through a striping station where a striping material is applied to a predetermined zone on the upper surface of the film. Next, the film is drawn around a plurality of drying rollers which are positioned to form a generally rectangular, inwardly spiraling drying path. The film with the dried striping zone is collected on a take-up reel which is motor driven in co-operation with a drawing roller. The drawing roller draws the film from the supply roller, through the striping station and around the drying path.

Abstract: An apparatus for automatic application of blood serum comprises an applicator, a rinsing unit and a drip both associated with the applicator, means for conveying a blood serum bearing film while maintaining it in opposing relationship with the applicator, and means for supplying a buffer solution for wetting the film with a buffer solution prior to the application of a blood serum thereto. Blood serum is automaticaly applied to the film which is previously wetted with the buffer solution in an automatic manner.

Abstract: A free standing strip oiler and feeder adapted to oil both sides of a metal strip and feed it to a press comprising coacting powered feed rolls which receive and feed a strip to a straightening roller followed by means for coating the upper surface of the strip with lubricant, a pair of coacting squeegee rolls for smoothing the lubricant on the upper surface of the strip, means for coating the underside of the strip with lubricant and a further roll for finally smoothing the oil on the upper surface of the strip. The oiler and feeder unit is provided with a system for returning excess oil to an oil reservoir which is heated to maintain the oil at the proper and desired flow standards.

Abstract: A device capable of being removably mounted on a corrugator to glue overlapping marginal edge portions of first and second liners together to obtain a liner of greater width and of commercial value when the first and second liners are so narrow in width that in the past they would have been discarded as scrap. The bonded first and second liners may be used subsequently on the corrugator to form corrugated board that is of substantially the same strength and durability as though the bonded first and second liners were a single sheet.

Abstract: A method .[.and apparatus.]. for coating wherein the horizontal flow of coating liquid is restricted adjacent the ends of the coating roll to overcome foaming by high flow rates of liquid flow while avoiding fouling of the roll journals.