Abstract: A roll coating apparatus for applying a coating liquid having a high viscosity at a normal temperature, to a surface of a substrate, including a device for feeding the substrate, a coating roll rotatably provided in contact with the fed substrate, and a doctor for regulating the coating liquid adhering to the coating roll to a prescribed amount. Respective axial lines of the coating roll and the doctor are inclined with a prescribed angle with respect to the horizontal plane and a coating liquid supply device is provided at the highest position thereof. The coating liquid supplied at the highest end of the coating roll adheres to the surface of the coating roll. The quantity thereof is controlled by the doctor. The coating liquid flows downward on the surface of the coating roll due to its weight and rotation of the coating roll. Accordingly, the coating liquid on the surface of the coating roll is constantly renewed and no irregularities occur to the density of the liquid.

Abstract: A device for aspirating coating material, such as paints, from the applicator gap between two applicator rollers provides two suction tubes, which are disposed horizontally displaceably and whose outlet ends communicate with an apparatus for generating a suction pressure as well as with in apparatus for collecting the aspirated coating material. Particularly when a photoresist is applied to a board-like substrate in the manufacture of printed circuit boards, accumulations of the coating material in the region of the edge of the substrate passing through the apparatus can be avoided without mechanically straining the applicator rollers. By means of the suction pressure apparatus, the quantity of coating material accumulating as the boards to be coated pass through the apparatus can be aspirated continuously and returned via a collection tank to the supply of coating material to be used.

Abstract: A soldering machine for simultaneously applying liquid solder to opposite sides of the leads of a lead frame having I.C. devices thereon. The machine has sidewardly spaced rolls which define a vertically extending narrow nip therebetween through which the lead frame passes. A solder bath is disposed below the rolls so that the lower portions of the rolls dip into the bath and carry a solder film to the nip for application to opposite sides of the leads. A passage extends upwardly in isolation from the bath for permitting the lead frame to be fed vertically through the nip.

Abstract: A process for controlling curl in coated papers in which the paper web is coated on one side and is wetted with water on the opposite side by a roll-type water applying apparatus, the water applying operation being carried out under such conditions that the relative difference of the surface speed of the applicator roll from the running speed of the paper web is at least 1000 m/min. and preferably the water applicator roll is reversely turning. Curling of the paper is thereby eliminated.

Abstract: A coater for an offset printing press in which the last printing station, i.e., the blanket cylinder roller with its associated sheet-handling grippers, is converted to coating service, such that a pick-up roller, after an ascending arcuate path not exceeding 80.degree., transfers a liquid coating to an applicator roller rotating in an opposing direction to the blanket cylinder surface which coats the individual imprinted sheets and the liquid coating itself serves as a lubricant permitting said opposing directions of rotation and grippers of said blanket cylinder roller maintain proper handling control of the sheets during the coating thereof. Limiting the arcuate path of 80.degree. obviates reverse flow of the liquid coating on the pick-up roller.

Abstract: The invention relates to a process and apparatus for applying liquid, pasty or foamy substances to both sides of webs of material. To prevent any adverse effect on the web of material or the applied substances, application is performed by means of a pair of S-rolls 7,11 at a looping angle just enough for the application, the web of material being guided substantially straight. The two applicator rolls 7,11 are disposed as close as possible to one another immmediately upstream of the drier inlet 1. At least one of the applicator rolls 11 can be moved out of the operating position, to enable the web of material to be drawn in unimpeded.

Abstract: A machine is provided for depositing a ring of material on pharmaceutical ampoule tips or similar, said material being pasty or liquid at the time when it is deposited on said tips and being able then to be hardened, characterized in that it comprises means (4,5,6) for transporting said ampoules (3) in a line, these latter being disposed perpendicularly to their advancing direction; at least one reservoir (9) containing said material; and means (8) for transferring said material between said reservoir (9) and at least one of the tips of said ampoules (3). The invention also covers an assembly of such machines and the self-break ampoules provided with such a ring, made more especially from a plastic material, in particular at the level of the pre-break rings when it is a question of pharmaceutical ampoules with two self-break tips.

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: The present invention aims at providing a coating system which is capable of uniformly applying coating materials mixed with aggregates with a low fluidity as well as homogeneity on a base material and at remarkably enhancing productivity in the coating process. The coating system according to the present invention is characterized by the provision of a hopper to contain the coating materials mixed with aggregate arranged at a position so as to place a material outlet port of the hopper above a base material conveyer and of at least one levelling roller which is rotated in the same direction as the advancing direction of the base material, and arranged at a position above said base material conveyer but ahead of said material outlet port in the advancing path of the base material. The levelling roller rotates at a higher peripheral speed than the speed of the base material conveyor.

Abstract: For applying a liquid, such as liquid wax, to a continuously fed sheet material a first pair of cylindrical rollers, each having a smooth surface which is exposed to and wetted by the liquid to be applied, are rotatably mounted about substantially parallel axes and spaced apart to permit intimate tangential contact therebetween with both sides of the sheet material to be coated. A second pair of cylindrical rollers located a distance from the first pair are similarly mounted and positioned to make contact with the sheet material in like manner. A pair of cylindrical engraved rolls, each having an array of guadrangular cells formed along the surfaces thereof, are respectively positioned between each of the first and second pairs of rollers and are rotatably mounted on movable axes so that the engraved rolls urge against one or both of the roller pairs during rotation.

Abstract: An apparatus for painting the outer circumferential surfaces of a plurality of cylindrical containers. The apparatus comprises a rotatable disc having a surface positioned in a vertical plane and a plurality of mandrels secured to the surface of the disc and projecting horizontally therefrom for supporting the containers. A rotatable painting roll is positioned adjacent the disc for applying paint to the containers. First and second rotatable paint storage rolls are provided, the second paint storage roll being above said painting roll and interposed between the painting roll and the first paint storage roll. The axes of the two paint storage rolls are parallel and in a horizontal plane, and the axes of the painting roll and the second storage roll are parallel and define a plane which is angularly displaced with respect to the horizontal and vertical planes.

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: A cylindrical can being transported along a vertical circular passageway is passed through a first application zone where a part of the given amount of white paint is applied to all the outer surface of the can body and then advanced to a second application zone where the rest of said white paint is applied to all the said coated surface.

Abstract: An apparatus for treating the surfaces of a panel with irregular sides. Sealant is pressurized by applicator rolls acting on the top and bottom faces of the panel while sealant, deposited on the panel sides, is dispersed thereover by the side located spreader rolls. Side applicator rolls are stationed in series along each side of the moving panel with a first series of rolls each having an annular portion for pressuring sealant into the surfaces of the grooved side of the panel. Similarly the tongue side of the panel is sequentially treated by the rolls of a second series each having a circumferential recess within which is received the tongue of the remaining panel side. Additional rolls surface treat the panel faces. The side applicator rolls are biased into panel side engagement by spring assemblies which couple opposed side applicator rolls to one another to permit same to accommodate a moving panel with uniform pressure regardless of discrepancies in the panel path.

Abstract: A laminate composed of a web of carrier material and a thick layer of contact adhesive thereon wherein the thick layer is composed of a series of thin layers of contact adhesive which are bonded together. Methods and apparatuses are disclosed for preparing the laminate. Using such methods and apparatuses, thick layers of contact adhesive may be simply and economically produced.

Abstract: An apparatus for applying a protective coating to the inside of the welded seam of cans. When fabricating cans which are provided at their inner surface with a protective coating it is necessary, following the welding operation, to apply to the region of the welding seam the then missing part of the protective coating. Prior techniques were unable to achieve any optimum application of the seam-coating which would reliably cover the welded seam. If the fabricated cans are particularly intended for use for canned foods this then is dangerous to the health of the user. With the apparatus of the invention the protective coating is applied by means of a driven applicator roll to the welded seam. By suitably selecting the outer or jacket surface of the roll and a scraper as well as the rotational speed of the roll it is possible to optimize application of the protective coating.

Abstract: A plating chamber holds a reducing or inert atmosphere heated to a temperature suited for plating or galvanizing. A pair of power-driven coating rolls are horizontally disposed in the plating chamber, one roll contacting the top surface of a metal strip to be plated and the other contacting the bottom surface. A molten coating metal is continuously supplied so as to form a uniform film of the metal on the peripheral surface of each coating roll. By means of deflector rolls horizontally disposed in the plating chamber, a metal strip heated to a temperature suited for plating continuously travels through the chamber. A surface of the strip becomes plated on contacting the peripheral surface of the coating roll on which the film of the molten coating metal has been formed. The coating rolls can be drawn away from the surface of the strip by shifting the deflector or coating rolls, so that plating can be applied to one, both or neither side of the strip as desired.

Abstract: The printing plate processing machine includes a first conveyor for receiving printing plates and a second conveyor for receiving plate-separating sheets, and a feed mechanism for selectively transporting the plates and sheets from a loading station in which the plates and sheets are alternately disposed in a stack, toward the first and second conveyors. A plate and sheet diverting mechanism is located between the first and second conveyors for alternately delivering the plates to the first conveyor and the sheets to the second conveyor. The plates are processed after disposition on the first conveyor. A collecting station received the plates and sheets from the first and second conveyors alternately in a stack after processing of the plates. The feed-mechanism includes a fluid-operated cylinder and ram, the ram being movable selectively between an extended position and a retracted position.

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: Methods and apparatus are taught for decorating sheet material such as, for example, cigar wrappers. The apparatus includes feeder means for drawing the sheet material toward and around a center cylinder; decorating means for imparting a predetermined pattern on the sheet material; coloring means for coloring the sheet material and drawing and rewind means for drawing the sheet material from the center sheet guide means.An alternate embodiment teaches methods and apparatus for use with at least two layers of sheet material such as, for example, cigar wrapper sheet material, one of such layers being decorated and colored and then laminated to the other layer.

Abstract: A traveling web is coated on both sides with an aqueous coating composition by a method that utilizes apparatus providing two coating stations. The two coating stations are spaced from each other in the direction of travel of the web and each station includes a backing roll, a doctor blade and a device for applying coating composition to one side of the traveling web. One side of the web is brought into contact with the backing roll at the first coating station and aqueous coating composition is applied to the other side of the web. The web is then passed between the backing roll and the doctor blade at the first coating station. At the second coating station, the coated side of the web is juxtaposed with the backing roll and aqueous coating composition is applied to the uncoated side of the web. The web is passed between the backing roll and the doctor blade at the second coating station, while the doctor blade is maintained in contact with the coating composition applied at the second coating station.

Abstract: Apparatus for applying a coating to edges of envelopes. The envelopes are fed from a stack feeding device to a first conveyor which conveys them past a roller which applies the coating to one edge. A dead plate receives the envelopes from the first conveyor and feeds them to a second conveyor which is at right angles to the first conveyor. Applicator rollers are placed on opposite sides of the second conveyor to coat opposing edges of the envelopes.

Abstract: A laminator system for the continuous treatment and lamination of a plurality of flexible webs, with the system including the conventional adhesive applicator stations and laminator stations, with a drying chamber being arranged to dry or otherwise condition the applied adhesive films. The drying chamber is an annular enclosure having a generally inverted "U" configuration with access openings being formed at the base of each of the upright legs. Guide rolls are provided for creating a plurality of web paths through the laminator system, with the web paths including a plurality of generally parallel and concentric spans extending through the drying chamber. In addition to size reduction considerations, the drying chamber provides enhanced versatility for the laminator assembly, and simplifies solvent recovery.

Abstract: An apparatus and method for making continuous, elongated strips or webs, of electrically conductive, flexible material having individual and successive deposits, or patches, spaced apart therealong, each deposit comprising a cathode layer on one face of the strip, oppositely disposed to an anode layer on the other face of the strip, characterized by the layers being in exact peripheral registration with each other.The registration is obtained by reverse roll coating a first such layer on the advancing strip in a first zone so that it extends above the surface of the strip, then training the advancing strip around a roll, in a coating roll nip, with the first layer down and supported on the roll surface and simultaneously reverse roll coating the second such layer on the exposed face of the strip in said nip, while the portions thereof surrounding the raised first layer are flexed out of the plane of the strip, thereby permitting the first layer to control the deposit of the second layer to register therewith.

Abstract: Stiffeners in the form of spaced, narrow bands or lines of flowable, quick-setting material are applied to one side of a moving paper web to be used as computer paper. The stiffeners are applied either immediately before or during the time the paper web is partially wrapped around a cylindrical drum so that the material will set to a solidified condition while it is on the drum to set up a molecular pattern in each stiffener line, causing the paper web to be inherently biased in one direction. Guide means is provided for directing the paper web onto and off the drum. The material may be applied by applicator guns or wheels as the paper web moves through a rotary printing press and as it moves toward a line hole punch apparatus, perforating means and a fan-folding mechanism.

Abstract: A method of, and apparatus for, applying a synthetic resin or plastic powder in a grate-shaped coating to web material wherein an upper layer is formed so as to coincide with and lie upon a lower layer applied by a relief-like structured printing roll. The upper layer is also formed by a relief-like structure printing roll. The powder for both layers, during its transfer into the spaces of the rolls, is brought to its sinter temperature, whereas the web material, before forming the lower layer, is heated approximately to the plasticizing temperature of the powder for this layer. The powder piles of the upper layer are placed upon those of the lower layer directly after transferring the latter to the web material.

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 method for coloring, dyeing-in or inking absorptive, rough surface paper, particularly paper which is subsequently saturated and/or impregnated with a solution of a heat-hardenable synthetic resin and then dried and pressed on a substrate, such as, wood panels, with as thin as possible a layer of coloring agent having an optically uniform coloring, in which the paper is colored by applying a magnetic roller coloring process thereto and, before or after such coloring, the paper is printed by a copperplate intaglio printing process or a flexographic (flexo-relief) printing process.