Abstract: A doctor bar consists of two different circular disks that are clamped or fixed in some other way on a cylindrical carrier bar. Circular disks having a smaller diameter and made from elastic material alternate with circular disks that have a larger diameter and are made of a very wear-resistant material, specifically ceramic. The difference in the outside diameter makes for one-half the groove of peripheral grooves of the doctor bar that are formed between the various circular disks.

Abstract: Apparatus for wet laminating a photopolymerizable film onto circuit board panels or other substrates. The apparatus is easily and quickly convertible from dry laminating to wet laminating with the rollers therefor mounted in bearing blocks which are insertable in slots in brackets at each end and removable therefrom. The lower roller thereof has a gear the teeth of which are meshable with the teeth of an idler gear for transmission of rotation power thereto. Elongate tubes for applying a fluid, which comprises between about 0.1 and about 10 wt. % of a heterocyclic metal-chelating agent, to the wet insertion rollers for application thereof to the panels are contained in a yoke which is adjustable next to wet insertion rollers for wet laminating or away from dry insertion rollers for dry laminating.

Abstract: In a process for mass producing optical storage sheets, an elongate film of a liquid crystalline material is fed lengthwise along a path through an aligning gate. The aligning gate applies to successive areas of the film a field which aligns the molecules. The field may be an electric field and/or a shear field. An aligning layer, such as a surfactant layer may also be used for alignment of the film areas. The aligned film may then be cut into pieces for use as microfiches or microfilms. The film material is preferably a liquid crystal polymer material.

Abstract: An apparatus, including a manifold pipe, for applying variable amounts of steam to sections of a calenderable material to control certain properties of the material such as gloss. Built-in steam flow control valves are provided along the manifold pipe to control the amount of steam applied to each section. Bucket nozzles provided on the valves decrease the velocity of the steam jetted from the valves and eliminate any condensate present in the steam before discharging the steam against a surface of the calenderable material. Condensate which may form on the apparatus may be channeled away from the calenderable material by a pair of gutters.

Abstract: A device for use in applying a thin resinous coating to existing surfaces, such as concrete highways, to resurface and restore the same and improve their physical properties, such as skid resistance comprising two parallel supporting beams, a screed box having a bottom, two sides and a front and back sides, the bottom of which is attached to the parallel beams and the screed box having an adjustable dispersing gate at the back adapted to dispensing a controlled amount of the resinous binder in the box, at least one rotatable screed brush adjustably attached between the two beams behind the screed box and being adapted to bringing the dispersed binder in contact with the surface and pushing out any air that may be trapped under the coating, at least two spaced levelling bars perpendicularly and adjustably attached between the beams and being adapted to spreading and levelling the binder passing under the brush, at least one of the levelling bars being adapted to applying downward pressure on the layer of binde

Abstract: A method and apparatus for removing particles from a flexible sheet. The sheet is run over a rotating rod, rotating oppositely to the moment of the sheet. The rod is immersed on its lower side in a bath of solvent and excess solvent is removed from the bath and is filtered. Additionally, solvent may be applied to the sheet before it reaches the rotating rod or a negative pressure applied just upstream of the rod sucks away the particles.

Abstract: There is disclosed an apparatus for forming deposited film which forms deposited film on a substrate by introducing a gaseous starting material for formation of deposited film and a gaseous oxidizing agent having the property of oxidation action for said gaseous starting material through separate routes respectively into a film forming space to thereby effect chemical contact therebetween, comprising one or two or more chambers for formation of deposited film and one or two or more etching chambers for etching at least one of said substrate and the deposited film formed on the substrate connected to one another.

Abstract: A doctor blade mounting is provided for use in association with a running web of sheet material, such as, for example, paper. The doctor blade mounting includes a doctor blade column retained in a blade bed which is formed of an elastomeric material. A leaf spring is provided for providing tension between the doctor blade column and the running web and is secured to the blade bed by a guide shaft adapted to receive an end of the leaf spring. The leaf spring is secured in the guide shaft by retaining means, i.e., catches, cams or flanges. Due to the creation of a flexible portion within the blade bed, the leaf spring can be unlocked after removal of the doctor blade column.

Abstract: A coater applies ultraviolet curable coating material to the opposite sides of roll film by a double-sided coater which employs offset coating rolls and smoothing bars. A splice detector responds to the occurrence of a splice upstream of the coater and causes the splice region to move through the coater without applying coating material to the splice region, by lifting the emulsion side of the film off of the coating roll as the splice passes and by temporarily and sequentially interrupting the operation of the smoothing bars and the offset applicator roller on the non-emulsion or base side, concurrently with the passage of the splice therepast. In a second embodiment, the film is lifted by lifting bars off of both coating rolls and tension on the film is concurrently decreased in the coater to prevent marking of the surface of the coated film by the final smoothing bars.

Abstract: A film coater apparatus applies an ultraviolet light curable coating to the opposite side of filmstrips in which the filmstrip is initially supported at one end on a plastic leader, includes a coater formed with complementary leader guiding passageways in the opposite side walls of the coater which guide the leader through the coater in non-contacting relation to the offset coater applicator rolls and to the smoother bars so that coating material is not built-up on the leader. The coater apparatus is self-threading and includes an inlet drive roll, an ultraviolet light curing chamber, and an outlet drive pinch roll assembly which serves to grip the leader and thereafter to grip and drive the filmstrips through the coater. The outlet pinch rolls provide a draw or tension to the film to assure the desired delivery of the filmstrips through the coater and in contacting relation to the coating and smoothing elements therein.

Abstract: A roll blade assembly for a paper coating machine, comprising a frame (5), a support mounted on the frame (5), a blade member (8) mounted on the support (3), a set of mounting accessories (1, 6, 7) for attaching the inner longitudinal end of the blade member (8) to the support (3), a bar unit (9) provided with a rotating metering bar (10) and, attached to the blade member (8), and a pneumatically inflatable loading bag (2) arranged to push the bar unit (9) outwards from the support (3) when the inflation pressure is raised. The blade member (8) is flexible, and the support (3), the bar unit (9), and the blade member (8) form a recess (4) compliant with the loading bag profile and extending in the lateral direction of the blade member (8) over at least 50 percent of the unobstructed blade width. The large inflated bag contact surface makes a more accurate control of the metering bar pressing force possible by directly contacting the blade member.

Abstract: The present invention pertains to an equipment adapted to uniformly spread anti-sticking powders, such as talc in an aqueous suspension, on bituminous membranes for water-repellent coverings in the building field. Said equipment comprises a series of rollers on which the membrane runs. During the feed motion the membrane passes through a suspension-applying station and a drying station. Downstream of the suspension-applying station, a flattened jet of compressed air eliminates the liquid in excess and creates a homogeneous liquid film on the membrane. Afterwards, the membrane reaches a rotating drum provided with suitably disposed shaped reliefs which, on the membrane itself, create a homogeneous distribution of the particles suspended in the liquid film.

Abstract: A coater applies ultraviolet curable coating material to the opposite sides of roll film by a double-sided coater which employs offset coating rolls and smoothing bars. A splice detector responds to the occurrence of a splice upstream of the coater and causes the splice region to move through the coater without applying coating material to the splice region, by lifting the emulsion side of the film off of the coating roll as the splice passes and by interrupting the operation of the smoothing bars and the offset applicator roller on the non-emulsion or base side, concurrently with the passage of the splice therepast.

Abstract: A process and device for producing a flexible layered article suitable for use in water proof garments wherein one of said layers is a microporous membrane material produced from the "solvent non-solvent" method wherein a fabric backing coated with the membrane material dissolved in a solvent is contacted with a drum having gripping means offering substantial resistance to the natural tendency of the coated fabric to curl when immersed in a non-solvent for the polymer material.

Abstract: Reinforcing fiber materials such as rovings, webbings, and other fiber maials are impregnated with a resinous binder material in such a manner that gaseous inclusions are avoided whereby a surprising increase in the strength of the fiber compound material is achieved. For this purpose the liquid resinous binder material is applied substantially only to one side of the reinforcing material which is then moved through an absorbing zone in which the liquid resinous binder material penetrates the reinforcing material substantially completely as a result of a predetermined residence time and temperature in the absorbing zone. Gas inclusions are removed by adsorption and/or by expulsion. The gas adsorbing and expulsion zone is a chamber in which a plurality of guide rollers are arranged so as to cause the impregnated material to repeatedly reverse its moving direction, whereby the sequential and repeated penetration of the reinforcing material by the resinous material and the removal of gas inclusions are enhanced.

Abstract: In a coating method, a coating section is arranged immediately before a coil bar while a smoother is disposed immediately after the coil bar, immediately after a coating solution is applied to a web which is run continuously a surplus of coating solution is scraped off and the web is subjected to smoothing by the smoother directly without undergoing a gaseous phase.

Abstract: In method of metering a coating solution, a coil bar is rotatably supported on a holder, and after a coating solution is applied to a web which is continuously run, a surplus of coating solution is scraped off with the coil bar, metering is carried out while a solution which is substantially the same in composition as said coating solution is supplied continuously to both sides of the coil bar which are before and after in the direction of run of the web, at a predetermined flow rate.

Abstract: Doctor rod support apparatus, in a coating machine, comprising a support bar which carries inexpensive, simply shaped, doctor rod support members which are inexpensive off-the-shelf items and are mounted so that they can be simply and easily repaired or replaced.

Abstract: An apparatus for stripping a protective coating from a substrate such as an architectural ornament or copper-plated resin board. First and second rotatable rollers are mounted parallel to one another with the spacing therebetween being adjustable. Discharge units are mounted above and below, respectively, the two rotatable rollers. An adhesive roller projects beyond the surface of each of the rollers through an aperture formed therein. Adhesive tape is wound around the adhesive rollers with the sticky side of the tape to the outside. A push rod is selectively extendible through an aperture formed in the rollers to the rear, in the direction of rotation of the rollers, the position of the adhesive rollers. Protective coating, taken up onto the surface of the rotatable rollers by action of the adhesive rollers, is transferred from the surface of the rotatable rollers to the discharge units, and then discharged to the outside.

Abstract: Method and device for the continuous application of a layering mass on boards, whereby a rotating application roller and a rotating smoothing roller located directly behind the application roller in the direction of transport of the boards are used which can be separately driven and adjusted in height, a transport means for the boards is located under the rollers, and a scraper is associated with the smoothing roller. The layering mass is applied to the boards with the application roller and smoothed with the smoothing roller, which rotates counter to the direction of transport of the boards. The layering mass is a mineral fresh mortar which is applied to the boards in the area of the lower gusset between the rollers. The application roller rotates counter to the direction of transport of the boards.

Abstract: Apparatus is used to uniformly apply liquid treating medium to a textile workpiece by foaming it, depositing the foam in a confined space atop the workpiece, applying suction to the workpiece from below and then, at a location downstream of the suction, squeegeeing additional foam into the surface layer of the workpiece.

Abstract: A portable coating apparatus is described for use with a paper converting machine such as a corrugated paperboard double-backer. Rotational power to drive gravure, transfer and smoothing rolls is extracted from the converting machine supply web by an S-wrap through the loaded nip between a pair of drive rolls. A low-powered auxiliary drive motor is automatically engaged to keep the gravure and transfer rolls conditioned with coating during brief intervals of web feed cessation. The entire unit is constructed on a space frame that is supported by caster wheels to facilitate movement to and from an appropriate converting machine position which may be between the reeled web supply unwind stand and a web preheating drum station leading into a double-backing machine.

Abstract: A web coating method and apparatus includes a web scraping mechanism arranged after a coating section, the scraper being in the form of a wire bar. The scraping efficacy of the device is improved by forming the wire bar from small gauge wire wound upon a circular or polygonal rod, where the radius of curvature of the wire is 2 mm or less. If desired, the wire bar may be rotated relative to the web as scraping is effected.

Abstract: A liquid developer apparatus for developing an electrographic latent image formed on an image bearing surface of a recording medium wherein the liquid developer is applied to a region of a rotated applicator roll with flow controlling means positioned in spaced relation to the surface of the applicator roll to meter the amount of liquid developer applied to and carried by the applicator roll. The flow controlling means provides for uniform supply of liquid developer to a meniscus formed in a development gap formed between the moving recording medium and the applicator roll. The development gap is formed with the aid of a backrest electrode positioned opposite to the applicator roll over which the medium travels through the development gap. The backrest electrode may comprise a rotatably mounted roll.

Abstract: A method and apparatus for forming an electrically conductive layer on a corrosion-resistant layer which covers a cable. The cable is passed through a powder accumulating tank in which are mixed an electrically conductive powder and binder powder so as to allow the mixed powder to initially adhere to the surface of the cable. The mixed powder is then pressed against the surface of the cable first at a cable outlet of the powder accumulating tank and then with a powder applying device in which an endless powder applying belt or cloth is rotated around the cable at a rotational speed dependent upon the linear speed of the cable. The surface of the cable is then heated to melt the binder powder and cause the electrically conductive powder to yet more firmly adhere to the surface of the cable. The cable is then cooled and wound.

Abstract: The present invention embraces apparatus for the production of mineral fibers such as glass fibers. In particular, the apparatus comprises a guide member for gathering filaments into side-by-side strands wherein the guide member has a locating hole and support means for holding the guide member normal to the side-by-side strands. The support means comprises a supporting member, a pin member extending upwardly from the support member for positioning the guide member thereon at the locating hole, and an adjustable member extending from the support member and adapted to support the guide member so that the guide member is held above the support member by the pin and the adjustable member.

Abstract: A fabric to have a latex coating of controlled thickness applied to its upper surface moves toward a drying oven. The lower surface of the moving fabric contacts a supporting bedplate. A latex coating is applied to the upper surface of the moving carpet across the width of the carpet. The moving carpet with the latex coating travels underneath a nip roll. A flexible nip blade is positioned underneath the nip roll so that the edge of the nip blade extends beyond the bottom dead center of the nip roll in the direction of the drying oven. Both the nip roll and the nip blade extend across the width of the moving carpet.

Abstract: This invention relates to apparatus for lining or coating the interior of lengths of large diameter, e.g. sixty inch (152.4 cm) pipe by applying fluent material thereto, and more specifically relates to such apparatus wherein a pipe liner vehicle travels through the pipe applying the material as it moves therethrough.

Abstract: An apparatus for the regulation of the coating thickness in the coating of continuous webs of material has a doctor-roll which bears on the coated side of the web and which is supported in a shape-retaining, wear-resistant doctor-roll bed. The doctor-roll bed is elastically joined to a stationary frame of the apparatus in such a manner that it is removably mounted for replacement independent of the remainder of the elastic joint.

Abstract: A reactive polyurethane mixture is applied by a high pressure airless spray applicator directly onto the primary backing of a moving substrate such as a carpet web. The applied reactive mixture is allowed to foam to an approximate predetermined thickness and density. While the blown or foamed backing layer still possesses substantial residual tackiness, it is compressed or regauged to a precise uniform thickness and simultaneously is provided with either an embossed or a smooth surface. The tack of internal cell walls of the blown backing layer retains the layer at the regauged thickness. Curing of the regauged backing layer by externally applied heat and/or by the heat of the exothermic reaction in the applied mixture is completed. Detackifying agents are applied to the regauging devices and/or to the applied backing layer to prevent adherence of the layer to the regauging devices. A surface skin formed of the detackifying agents is cured on the regauged backing layer.

Abstract: A moving thermoplastic sheet having a thickness not smaller than 150.mu. is coated with a liquid coating agent in excess amount and then a metering bar rotating at about the same peripheral speed as the moving speed of the said sheet is contacted with the coated surface of the sheet whereby a coated thermoplastic sheet having a uniform coating layer is obtained.

Abstract: An improved elongated coating rod holder for a coating doctor apparatus wherein the rod holder has formed therein an elongated cavity for receiving the coating rod with the cavity comprising at least two sealing surfaces therein. The coating rod holder also has formed therein a cooling water chamber formed as a plurality of smaller chambers having an interconnecting passageway between adjacent chambers. The cooling water chamber is formed directly below the elongated cavity which is connected to at least one cooling water inlet and at least one cooling water outlet formed in the rod holder.

Abstract: Films having widths of up to one meter or more can be coated at high coating speeds of up to 400 meters per minute or more with coating compositions having viscosities reaching up to 400 centipoises or more by arranging first and second guide rollers, a coating roller and rotating smoothing rod such that the path of travel of the film during the coating procedure is a substantially circular path whose diameter is preferably about one meter. During the coating procedure, the tension of the film by the first and second guide rollers is regulated independently of the speed at which the film travels. The apparatus and process have applicability to a wide range of films and coating compositions.

Abstract: In apparatus for dusting an exposed upper elastomeric surface of a fabric reinforced vulcanizable tape, the tape is entrained about rollers such that a horizontal portion passes below at least one slit, of a feedbox containing zinc stearate, for spreading of the powder evenly on the tape, whereafter on a downstream portion of the tape which is inclined upwardly a brush serves to remove any excess powder from the dusted tape.

Abstract: An application and dosing device, especially for the distribution of a highly fluid medium on a sheet of material to be refined, e.g. paper, cardboard, plastics, metal, textiles, etc., includes an application roller and a doctor rod disposed adjacent to the roller. The application roller is in the form of a mini-roller. The doctor rod is supported for rotation in a clamp bearing which partly embraces the lower part of the rod between two spaced viscoelastic bearing members enclosing a wash water channel below the doctor rod. One bearing member is movable and is abutted by an adjustable pressure element urging the movable bearing member towards the other bearing member so as to adjustably hold and seal the doctor rod.

Abstract: A fabric to have a coating of controlled thickness applied to its upper surface moves between a supporting roll and a supporting plate. The lower surface of the fabric contacts the supporting roll and supporting plate but is unsupported therebetween. Between the supporting roll and plate, the moving fabric is depressed by a blade extending across its width. Near to the blade and between this blade and the supporting plate, a coating is applied to the upper surface of the fabric. A gauging device adjacent to where the coating is applied controls the thickness of the coating. The distance between the blade which depresses the fabric and the supporting plate should be several orders of magnitude greater than the distance between this blade and the gauging device. Any variations in fabric thickness as the fabric passes over the supporting plate would cause corresponding variations in the coating thickness if the coating were being applied over this plate.

Abstract: Coating tubular plastics film by depositing on each surface of the lay-flat web a plurality of evenly spaced lines of coating material parallel with the length of the web, and using contrarotating rollers to spread the deposited lines, causing them to merge into a uniform coating.

Abstract: Apparatus for a process of continuously casting and sizing metals by passing a metal core member through a container of molten metal to accrete and solidify the molten metal thereon, and passing the cast product through a series of pairs of counterpoised sizing rolls composed of a specific steel composition to consolidate and smooth the cast product; and a method of continuously casting and sizing metals.

Abstract: A smoothing roll for use with apparatus for coating a web of paper or other sheet material, particularly for smoothing coatings at low wet coatweights of silicone compositions applicable in their natural state without the use of a solvent, has a soft elastomeric covering the smoothing surface of which is pitted and is substantially impermeable to liquid coating compositions.

Abstract: A web dispenser wherein an elongated coated web is dispensed from a container by manually pulling the same through a closely confined rotatable ball closure whereby the coating is metered.

Abstract: An apparatus for vibrating and dewebbing tire cord fabric treated with a liquid bonding agent for promoting the adhesion between the warp cords of the fabric and the rubbery material in which the cords are embedded. The fabric, freshly coated with the liquid bonding agent, is guided along a desired vertical pathway between a pair of rotating cylindrically shaped cams which are eccentrically mounted for rotation about axes which are equally spaced from the pathway of the fabric. The rotation of the cams is synchronized such that the cams continuously contact the fabric as they alternately push the fabric in opposite directions from the desired pathway to vibrate the fabric between the rotational axes of the cams. Thus, excess liquid coating is shaken from the fabric to help remove any liquid coating webbing the openings between the warp cords and weft threads of the fabric.

Abstract: A method for draining water or moisture from a substratum for a waterproofing layer in buildings comprising applying to the substratum such as concrete or mortar a sintered product of a thermoplastic resin, having a capillary structure comprising numeral, fine and interconnecting pores and voids of 20 to 70 percent, selected from the group consisting of a sintered plate and a sintered hollow product in a form of a belt or tube, wherein at least a part of the sintered product is protruded into the atmosphere and applying thereto a waterproofing layer, and thereby making the water or moisture contained in the substratum evaporate through the sintered product.