Abstract: An apparatus for manufacturing an elastomer coated bias fabric for reinforcing power transmission belts and the like is disclosed wherein one face of the fabric is provided with an uncured, tacky, carboxylated elastomeric composition. In one embodiment, the fabric is prepared by pre-impregnating the fabric with a neoprene latex composition followed by coating the neoprene composition on both faces of the fabric while the fabric is transversely stretched, and after drying the fabric, overcoating one face only of the coated fabric with a tackified, carboxylated neoprene latex composition.

Abstract: A soldering technique is provided especially for printed circuit boards wherein a bath of solder assisting fluid such as non-ionic surface active agent is superposed on a bath of solder. In one form, the workpiece is passed through the bath of solder assisting fluid and solder is pumped from the bath of solder to a trough whereat the solder is cascaded onto the workpiece. In another form, the workpiece is passed downwardly through the bath of solder assisting fluid into the bath of solder for the application of solder to the workpiece. Thereafter, the workpiece is withdrawn from the bath of solder through the bath of solder assisting fluid. In both instances, while the workpiece is still within the bath of solder assisting fluid, jets of this fluid are played against the workpiece to control the thickness of the solder which is allowed to remain on the workpiece.

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: Apparatus for applying film coatings of material to electrical component bodies having axial leads includes adhesive tape for supporting the components in spaced relationship. A supply reel carries a supported plurality of such components. A shaft has a circumferential row of transversely oriented pockets for receiving component bodies whereby their leads are parallel. The shaft is oriented with respect to a lower reservoir providing liquid polyurethane, so that, as it rotates, sequential pockets pass through the liquid material, retaining menisci thereof therewithin. As the component bodies are received by the menisci retained pockets, underside portions of the components are coated with liquid material. A brush applies liquid material from a upper reservoir to upper portions of the carried bodies. The brush smooths the upper portions to avoid formation of globs or blobs thereon.

Abstract: An installation includes a first fixed return roller, positioned above the melted zinc bath level and along which passes the band to be galvanized, when exiting from a galvanization tromp. A second return roller is mounted on a mobile arm and guides the band, after galvanization to an excess metal removing device. A coating roller, mounted on a mobile arm is adapted to be brought to two positions, a first position where it dips into the zinc bath for coating a determined face of the band, and a second position where it is moved clear of the path followed by the band. A bottom roller is supported by a mobile arm so as to be movable to two positions, a working position at the bottom of the tank, so as to provide for the immersion of the band in contact with such roller for carrying out galvanization of both faces, and a rest position clear from the path followed by the band.

Abstract: A size press having a plurality of rollers for the deposition of a size bath on both sides of a running paper web. The running paper web cooperates with a first roller to pick up size from a trough disposed below the first roller. Downstream of the first roller are second, third and fourth rollers, which are so disposed relative one to the other that the second and third rollers form a pressure gap therebetween and the third and fourth rollers form a second pressure gap therebetween. The size deposited on the running paper web from the trough is uniformly and efficiently metered thereon, and sufficient time is provided for a uniform penetration of the size into the running paper web, thereby resulting in a homogeneously sized web.

Abstract: A coater for applying a coating material to both sides of a traveling web with the web passed over a back-up roll and a first coating such as sizing applied to the back-up roll surface in advance of a coating zone for transfer to the web at the coating zone and the second surface of the web being coated by a trailing blade coater applying pressure to the web urging it against the back-up roll.

Abstract: Two side coaters and methods of coating paper on both sides are disclosed in which a web of paper to be coated is moved in a generally upward direction in partially wrapped relation to a coating roll, so that one side of the web is in contact with and supported by the roll. This one side of the web is coated by a first coating material which is applied by the coating roll. This coating material is applied to the coating roll by an applicator roll, either directly in which a puddle is formed between the applicator roll and the coating roll, or through transfer from a pair of metering rolls in which the coating puddle is formed between the metering rolls.

Abstract: A combined size press and breaker stack comprising a breaker roll and a coating press roll and an intermediate roll selectively alternately shiftable into breaker nipping relation to the breaker roll or coating nip relation with the press roll, and guiding paper web, traveling continuously from a supply to a disposition point, to either of the alternately selected nips. Coating material is supplied to the paper web while traveling through the coating nip.

Abstract: An improved apparatus for manufacturing roofing shingles having multiple ply appearance, in which an elongated strip of a dry organic or mineral material previously saturated in an asphalt tank and with at least one uniform longitudinally continuous strip of a first coating of granules is fed into the apparatus. The apparatus automatically and repeatedly applies spaced apart bands of varying widths of an adhesive material onto the first coating of granules. A second coating of granules is then automatically applied by the improved apparatus to the asphaltic bands. The application of the adhesive bands and the subsequent granule distribution are synchronized so that the granules are distributed only upon the bands of adhesive.

Abstract: An apparatus is provided for attachment to the down-stream end of a conventional offset lithographic printing press for in-line coating of the printed work issuing from the press, with water-based polymer coatings, to protect the printing ink as the printed matter sets and hardens. The apparatus includes a pick-up roller which picks up liquid coating composition from a reservoir structure, a cylindrical applicator roller to which the coating composition is transferred, the apparatus being mounted on the frame of the press so that the applicator roller of the apparatus can bear against the blanket roll of the printing press and transfer the coating composition to the blanket roll as the press operates. The apparatus is releasably mounted to the press, and can be pivoted about a lower axis to bring the applicator roll into and out of contact with the blanket roll of the press.

Abstract: A method of transferring a substance adhering to the surface of a substrate to a receiving surface of a backing element which includes locating the substrate surface in juxtaposition with the receiving surface, supplying a transfer medium on the receiving surface in sufficient quantity to encapsulate the substance, joining the transfer medium on the backing element with a substance so as to encapsulate the substance within the transfer medium and removing the substrate to expose the encapsulated substance.

Abstract: Apparatus selectively convertible to perform one or more coating operations on a web of paper or the like comprises a fixed rotatable roller, a coating blade movable into and out of coating relation with the surface of the fixed roller and cooperating with a dam of coating material to coat a web as it passes through the nip between the coating blade and the fixed roller, and a second movable roller movable into and out of nip forming relation with the fixed roller with provision for adjustment of pressure in the nip and adapted to cooperate with a dam of coating material to coat a web as it passes through the nip between said rollers, said movable roller also being adapted alternatively to receive coating material and to transfer it to the fixed roller to coat one side of a web as it runs over the latter.

Abstract: Apparatus for permanently and protectively mounting "wet" thin sections of biological specimens on microscope slides, wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymerizable material permeates and protects the specimen. Following solvent evaporation, a second polymerizable material is layered over the specimen. Preferably, the first and second polymerizable materials comprise a mixture of low-volatility, low-viscosity, liquid acrylic reactomers and a U.V. light-sensitive catalyst system. A conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U.V. radiation. The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.

Abstract: Apparatus for applying liquids including a main body and a carrier supporting the main body for movement, the main body having mounted therein conduits and charge-over valves for supplying liquids, and spray nozzles for spraying the liquids in predetermined amounts onto a liquid-absorptive, resilient contacting member to enable the latter to apply the liquids to a surface by sliding rubbing contact therewith as the carrier is actuated or for spraying the liquids directly onto the surface. The liquids absorbed by the contacting member are squeezed therefrom when a surface cleaning operation or a liquid applying operation is completed or any time the contacting member is soiled, by bringing the contacting member into pressing engagement with a liquid receiving pan.

Abstract: A paper web processing mechanism for applying a combined breaker press and size press coating operation including a first breaker nip formed between a first hard surfaced chilled iron roll and a second coating roll with the first roll being loaded to control the nip pressure and a third roll forming a coating nip with said second roll with the web led immediately through the second nip either by following the second roll or being passed over a guide roll therebetween and the web coated as it passes into the second nip in either a gate roll coating operation by gate rolls nipped against the third roll or by a puddle coating operation with coating supplied to the upwardly facing side of the second nip.

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: Semiconductor particles are distributed in a single level layer orientation in a glass sheet with portions of each particle exposed at both surfaces of the sheet. A metal layer on one surface of the sheet is in ohmic contact with the body of each particle and forms a common electrode.

Abstract: A method and apparatus for directing a foamed material, such as a foamed binder, across the lateral dimension of a moving surface in a uniform and controlled metered flow. In accordance with the method the foamed material is fed into an interior compartment of an applicator unit and is spread laterally as it moves through the compartment toward a laterally extending metering flow gap. After being laterally spread the foamed material is metered in a uniform, controlled manner across the lateral dimension of the moving surface. The applicator unit of this invention has a housing that includes a body portion and a door portion movable relative to each other to form, in a closed condition, the interior compartment that receives the foamed material. The body portion and door portion also aid in forming the laterally extending metering flow gap in communication with the interior compartment, and a passage extends through a wall of the housing to permit the foamed material to be introduced into the applicator unit.

Abstract: A method of transferring a substance adhering to the surface of a substrate to a receiving surface of a backing element which includes locating the substrate surface in juxtaposition with the receiving surface, supplying a transfer medium on the receiving surface in sufficient quantity to encapsulate the substance, joining the transfer medium on the backing element with a substance so as to encapsulate the substance within the transfer medium and removing the substrate to expose the encapsulated substance.

Abstract: Aluminum or other coating material is deposited on the surface of one side of a strip after which ink is deposited on preselected areas of the coated strip. The ink is then cured and the aluminum removed from the uncovered areas after which the ink is removed from the covered area of the aluminum.

Abstract: A machine for processing image-wise exposed light sensitive plates comprises processing rollers for agitating developer liquid in contact with the plate as the plate passes through the machine. The plate is urged into contact with the rollers by a plate member which is preferably adjustable and provided with recesses and preferably the developer applied to the plate is filtered developer and is applied by spraying. After developer has been removed, the plate is urged into contact with a roller, dipped in desensitizing solution, by means of, for example, a preferably adjustable second plate member. The desensitized developed plate is then dried before leaving the machine.

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: Two side coaters and methods of coating paper on both sides are disclosed in which a web of paper to be coated is moved in a generally upward direction in partially wrapped relation to a coating roll, so that one side of the web is in contact with and supported by the roll. This one side of the web is coated by a first coating material which is applied by the coating roll. This coating material is applied to the coating roll by an applicator roll, either directly in which a puddle is formed between the applicator roll and the coating roll, or through transfer from a pair of metering rolls in which the coating puddle is formed between the metering rolls.