Abstract: A method for providing corrosion protection with the use of a corrosion protection product for protecting an outer covering on a metal body from corrosive undermining. The corrosion protection product is an inner protective material used in connection with a metal body having an outer surface, pores communicating with the outer surface, and a covering of outer protective material that is bonded to the outer surface and bridges over the pores. The inner protective material is a liquid medium, preferably oil, which is substantially impervious to atmospheric corrosive agents, having therein a suspension of finely divided particulate material, preferably paint pigment. The inner protective material is introduced into the pores, and any of the inner protective material that may remain on the outer surface is selectively removed, leaving bodies of the inner protective material in the pores.

Abstract: A web of crepe paper, thin plastic foil or like material convoluted into a roll has an outer side which is provided with a continuous coat of adhesive. Transversely extending, uniformly spaced weakened portion in the form of perforations or slits are formed in the web, and layers of a material which does not adhere to the adhesive are applied to the web. Such layers are applied to the inner side of the web so that they flank the weakened portions and allow for rapid engagement of the leader of the web by two fingers when the user wishes to remove one or more sections or panels between neighboring weakened portions. The roll can be used for the cleaning of garments or for analogous purposes and can be made in an apparatus wherein the application of layers of non-adherent material precedes or follows the making of weakened portions.

Abstract: A method of manufacturing a flexible recording disk with a reinforced aperture region comprising the steps of transferring uncured polymeric material to a printing plate having an elastomeric protrusion thereon, transferring at least a portion of the uncured polymeric material from the elastomeric protrusion to a region on a surface on a flexible magnetic material, curing the polymeric material, and cutting a flexible disk from the flexible magnetic material such that the disk has a central aperture surrounded by the region of the flexible material coated with the cured polymeric material.

Abstract: Method for producing discrete bundles of filaments includes applying a non-aqueous, hot melt coating material to continuous filaments and gathering the coated continuous filaments into a bundle. The coating material is solidified on the continuous filament bundle so as to establish a first cross-sectional shape and the bundle is then severed into discrete segments whereby the bundle segments are deformed so as to exhibit a second cross-sectional shape at the severed regions. The bundle segments are then heated sufficiently to soften the coating material to permit the bundle segments to substantially return to the first cross-sectional shape.The apparatus of the invention includes a primary applicator for applying a production coating to the filaments and an interim applicator for applying a start-up coating to the filaments.

Abstract: A process for making fine perforations in plastic sheeting and/or plastic or rubber coated sheet materials in which the sheeting or the coating is too thick and/or the dielectric constants are too high for electrically making the fine perforations, including the steps of coarsely perforating the material by non-electrical methods, coating the perforated material with a layer of a coating material which is capable of being electrically perforated, and making fine perforations in the layer of the coating material by the use of high-voltage pulses.

Abstract: A paperboard container is provided having an opening member defined by an array of perforations. A coating of plastically deformable and readily rupturable material is disposed on the inside surface of the container and extends on each side of each perforation in the array of perforations including the continuous section of paperboard material between adjacent perforations. The cooperation of the coating of plastically deformable material and the paperboard material ensures that the severances between adjacent perforations will be more precise, less ragged and will not produce detached slivers of paperboard material.

Abstract: A nonflammable sliver knit high pile fabric. The backing fabric is knitted from a flame retardant aramind spun yarn, the pile fibers are composed of a mixture of flame retardant rayon fibers and superwashed wool fibers and the back coating is constituted of a flame retardant composition. The fabric not only is flameproof, but it does not react to a flame by melting. It has good thermal insulation properties and is stable against shrinkage. The fabric is especially useful in the manufacture of wearing apparel intended for use in extreme environments, such as fire fighting and cold weather military operations.

Abstract: The process for producing a prepreg of a glass fiber cloth according to the present invention is characterized by heat-treating the inner portions of the selvages of the glass fiber cloth to remove the residual stress of glass fibers in the glass fiber cloth, coating the heat-treated portions of the glass fiber cloth with a solution of a saturated polyester type resin of 150.degree. to 180.degree. C. softening point insoluble in a thermosetting resin varnish to be later used for impregnation so that the amount coated becomes 4 to 10% by weight as resin based on the weight of the portions of glass fiber cloth coated, drying the resulging glass fiber cloth, removing the selvage portions of the glass fiber cloth by cutting, impregnating the selvages-removed glass fiber cloth with the above mentioned thermosetting resin varnish, and drying the impregnated glass fiber cloth.

Abstract: The process of making an article of chemically vapor deposited silicon nitride on a pattern at high temperature including the use of methane to reduce the grain size of the deposited compound.

Abstract: The invention provides a process for forming a magnetic thin film on a base film, a heat treatment process of a thin film sheet consisting of the base film and the magnetic thin film, and an apparatus for performing heat treatment of the thin film sheet. Tension applied to the thin film sheet is substantially equal to that applied to the base film when the magnetic thin film is formed thereon. Then, the thin film sheet is treated with heat. The thin film sheet is heated with a given temperature gradient to a reactive temperature at which heat shrinkage occurs, while the tension is being applied thereto. Thereafter, the thin film sheet to which the tension is still applied is cooled with substantially the same temperature gradient as applied in heating.

Abstract: A pattern piece is prepared by moving a cutting instrument in accordance with a predetermined program and in cutting engagement with sheet material spread on a supporting surface to cut the pattern piece from the sheet material. Simultaneously with the cutting operation, a substance is applied to the sheet material along at least a substantial portion of the outline of the pattern piece. The applied substance may be a marking fluid for outlining the pattern piece to facilitate its separation from adjacent scrap material or adhesive for enabling a pickup surface brought into adhering engagement with the applied adhesive to pickup either the cut pattern piece or the scrap material.

Abstract: A process for manufacturing a magnetic material-containing carpet tile which comprises: forming a uniform fluid mixture of a liquid resinous material (e.g., vinyl chloride plastisol or poly(acrylic acid) water-based emulsion) and at least about 60% by weight of the mixture of a particulate magnetizable material (e.g., barium ferrite), applying the uniform fluid mixture to the back of a carpet facing to form a carpet composite, heating the carpet composite to solidify the mixture and fuse the mixture with the carpet facing and thereby provide a carpet covering, forming the resulting magnetized carpet covering into carpet tiles and applying a magnetic force to the carpet tiles to magnetize the particulate magnetizable material.

Abstract: An optical recording element which comprises a heat-resistant organic resin substrate; a recording layer formed on said substrate by thermal deposition or sputtering; and a transparent organic resin protective layer mounted on the recording layer, and wherein the organic resin substrate and organic resin protective layer are thermally fixed under pressure with the recording layer laid between them.

Abstract: A magnetic recording medium having a metamorphosed layer on the surface of the magnetic layer of conventional magnetic recording media, said metamorphosed layer being derived from some of a binder component included in the magnetic layer, can prevent the sticking trouble taking place between the magnetic recording medium and the magnetic head. Said metamorphosed layer can be formed by irradiation with ultraviolet rays in the course of the production of magnetic recording media at the step of coating a dispersion of magnetic particles on a flexible support or after the coating step. Said metamorphosed layer can also be formed on the surface of once produced magnetic recording media irrespective of having caused the sticking trouble by irradiation with ultraviolet rays. Suitable apparatuses for producing such improved magnetic recording media are also provided.

Abstract: A method of transferring indicia from a first support base, such as a paper sheet, which is coated with a release agent, to a receiver surface, such as a wall or window. An adhesive surface is pressed against the first support base in order to transfer the indicia from the first support base to the adhesive surface. The adhesive bearing the indicia is then applied to a receiver surface to provide the receiver surface with a protected image. Preferably the indicia is a fused xerographic image and the release agent coated on the first support base is a unique radiation-curable fluorine-containing abherent coating composition.

Abstract: A magnetic bubble memory element comprising a magnetic bubble memory unit and a separating region portion, which is prepared by the steps of forming a plurality of island shaped magnetic bubble memory units with separating regions intervening therebetween on a single crystalline substrate and performing the cutting process along the separating regions. In a preferably prepared memory element, the magnetic bubble memory unit and the separating region portion own in common a single crystalline magnetic thin layer which is formed on the substrate and the memory unit further comprises a hard bubble suppression film deposited on the magnetic thin layer, a conductor pattern layer and a magnetic film pattern layer both of which are deposited in that order on the suppression film so as to be insulated therefrom as well as insulated from each other.

Abstract: The method of producing sheets of reinforced paper comprising printing a hot-melt adhesive at pre-selected positions onto the surface of a continuously moving web of paper. The method also includes cooling the adhesive and cutting and trimming the web into sheets of paper, the adhesive forming the reinforcement at desired positions on the paper. The hot-melt adhesive is preferably a linearic copolyester such as GRILESTA 6505 (GRILESTA is a Registered Trade Mark).

Abstract: Provided is a carpet tile produced by using as a backing material a mixture which contains a solvent deasphalted asphalt and a copolymer of an olefin and a polar monomer, or a mixture which contains an amorphous polyolefin in addition to the above components. After applying the mixture as a hot melt to the back of carpet material, the backed carpet material is cooled and then cut or punched to produce the carpet tile.

Abstract: A metal article is coated on and at an edge thereof where at least two planar surfaces meet. The coating is carried out by initially coating the article at least partially at and on the edge, one surface at the edge is freed from coating in a mechanical way or an edge and a surface free from coating is prepared simultaneously in a mechanical way, as e.g. cutting off or sawing off part of the article. The exposed metal surface is then etched to form protecting coating projections and the etched surface is selectively coated. The article obtained has excellent and uniform resistant properties all over its surfaces.

Abstract: A method of treating metal sliding contact surfaces is disclosed. The method comprises pitting the surface (as by shot-blasting with glass or sand), impregnating the pitted surface with a dry lubricant (such as powdered graphite or MoS.sub.2), and roughening the impregnated surface to partially close the pits and to generate "peaks" of metal which are worn away during a bedding-in of the interengaging sliding contact surfaces.

Abstract: Water absorbent articles, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, and a composition useful to make said articles are disclosed. The articles are cured and/or crosslinked with monomeric amine-epihalohydrin adducts by heating and/or removing substantially all of the solvent from the precursor composition.The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.

Abstract: A method of treating a fibrous panel having natural fissures in order to enhance and enlarge the natural fissures. The upper surface only of the fissured material is coated with a hardenable liquid abrasive resist which is subsequently hardened. This leaves the fissured areas unprotected by the resistant. The surface coated by the resist is abrasively treated to erode the fissures to enhance them while maintaining the planar surface treated with the resist unaffected by the abrasive treatment step.

Abstract: According to the present invention the microporous surface of a corrodible metal body is protected against corrosive agents of the atmosphere and even such severely corrosive agents as those found in marine environments, by an impregnation in the pores of an inner protective material, preferably oil, that is substantially impervious to corrosive agents, and a covering of outer protective material, preferably resin, that is intimately bonded to the outer surface of the metal and bridges over the impregnated pores. After the impregnation, any of the inner protective material such as oil that may remain on the outer surface of the metal is selectively removed, while the inner protective material in the pores is selectively retained, whereby a secure, intimate bond of the covering to the metal is assured to protect the metal from corrosion initiating from the outside, while the inner protective material remains operatively disposed in the pores to protect the covering from corrosive undermining.

Abstract: A plurality of hooks, which are of one-piece construction with a casing substantially enclosing a transformer or choke, are engaged by a suspension means which allows the casing, exclusive of the hooks, to be immersed in an impregnating agent. After impregnation, the casing and enclosed choke or transformer are removed from the impregnant and air dried. The hooks and suspension means are not immersed in the impregnating agent.

Abstract: A heat resistant protective barrier has one or more layers (1) each comprising a support medium in the form of a plurality of closely spaced-apart strands (2) and a heat actuated and resistive intumescent coating (3) on the strands. The support medium preferably comprises an expanded metal mesh (5").

Abstract: A method for fabricating a thin-panel illuminator for uniform, high contrast lighting of large area graphic displays such as maps, photographs, charts, and the like. Light is introduced through one edge of a transparent substrate having front and back plane parallel opposed surfaces and thereby directed into the interior of the substrate. The back surface is textured with a multiplicity of shallow depressions such as grooves or dimples which have shallow sloped sides such that light is selectively directed from the interior of the substrate through a limited angle out of the substrate towards a display surface adjacent and coextensive with the back surface of the substrate and away from a viewer observing the display surface through the substrate.The diffusing surface is fabricated by roughening the back surface of the substrate to form relatively deep depressions which are then partially filled with an optically transparent liquid to thereby form relatively shallow depressions.

Abstract: A cover fabric for a V belt having increased flex and wear-life, and a method of making the cover fabric. A fabric is bias cut into a continuous strip of fabric. The individual fibers in the continuous strip are impregnated with an elastomeric polymeric material effective to increase the flex and wear-life of the fabric when used as a cover fabric for V belts. This impregnation is accomplished by immersing the strip in a fluid mix having a viscosity of about 2000 cps or less, the mix including a fluid carrier, an elastomeric polymer (e.g. a polychloroprene compound) and a dark pigment. A coating of an elastomeric polymer (e.g. another polychloroprene compound) is applied to the strip, the strip is stretched in its width direction to increase the angular relation of the threads of the fabric relative to its longitudinal axis, and the thus coated strip is dried. The continuous strip is ultimately slit longitudinally of itself into a plurality of tapes, and the tapes are used to cover a V belt.

Abstract: A matrix of discrete spaced electrical components (which may be individual components or networks, for example) in fixed array on a substrate wafer, each component being connected to terminal conductor pads on the opposite surface of the substrate by thick film conductor strips that extend along the walls of apertures in the wafer.

Abstract: A method of reducing fuel and oil consumption in an internal combustion engine in which the cylinder walls of the engine are peened with glass spheres having a diameter within the range of form about 0.002 inches to about 0.004 inches. The glass spheres form a multiplicity of local depressions and surface compression at the points of impact and are directed against the cylinder walls for a period of time sufficient to form the depressions over the entire surface area without leaving flat portions of the surface between the depressions. In some embodiments the cylinder walls are coated with a lubricating agent such as graphite prior to being peened. After the peening step the walls are lightly honed to produce substantially flat supporting areas between the individual depressions.

Abstract: The heat transfer medium for rotary air-to-air heat transferrers includes alternate planar and corrugated layers of a fiber-reinforced, heat-curable, organic resinous material. After corrugating and interleaving of the layers, the resultant structure is heated to cure the resin to a hardened state and the layers are bonded together at their points of contact to form a self-supporting, water-proof structure including a plurality of uniformly-spaced, tubular flow passages extending axially through the structure in parallel relationship parallel to the rotational axis of the transferrer. The surfaces of the flow passages exposed to air flow are coated with an aqueous coating solution containing a water-soluble hygroscropic material, such as lithium chloride, and a sufficient amount of a water-soluble wetting agent to provide a continuous film of the coating solution on these surfaces.

Abstract: An improved technique for making the finished shell of a violin. The wood used in the construction of a violin shell is subjected to a heating and treating process which improves the sound properties of the wood in a completed violin. The wood is first subjected to a temperature of 180.degree. F. to 350.degree. F. for a period of 1 to 2 months and then coated with iodine and again heated to a temperature of 300.degree. for a period of 2 to 7 days until the wood becomes charcoal-like. The wood is then scraped and varnished to produce the finished shell of a violin.

Abstract: A method of manufacturing a flat cut textile piece possessing variable stiffness over its surface, which comprises fabricating cut textile pieces from a dimensionally stable web-like flat structure. There is applied to the cut textile pieces, in accordance with a predetermined pattern and in a predetermined quantity, a preparation containing at least one substance forming a film at the prevailing processing temperature. This film possesses a Shore hardness A of at least 50 at a temperature of about 20.degree. C. and at a temperature of about 100.degree. C. possesses at most 80 percent of the hardness value measured at 20.degree. C. This film does not melt at a temperature below about 180.degree. C. Then the cut pieces are dried. The flat cut textile pieces produced according to the invention are preferably used as inserts for various clothes or garments, such as collars and cuffs.

Abstract: A mirror construction and method wherein shatter resistant optical quality first surface mirrors may be inexpensively fabricated. A styrene sheet is press polished and the polished surface is coated with a reflective layer. The press polished, reflectively coated styrene sheet may be subjected to further processing steps in order to produce a highly rigid and flat mirror. A surface of the styrene sheet is scored along a straight line to a depth that does not penetrate the front mirrored surface, but rather leaves a relatively thin region along the scored line having a minimal extent in the plane of the sheet. The styrene sheet is then folded, bringing portions on either side of the scored line towards each other and partially splitting the thin region. A membrane remains along the scored line to form a semi-flexing hinge. The ability of the membrane to withstand cracking can be improved somewhat by carrying out the folding step at a temperature generally greater than approximately 20.degree. C.

Abstract: A method of applying a line-shaped opening in a coating on a plastics foil, in which a part 3 having a pointed end is moved according to a line 4 in contact with the coating 2, while the temperature of the part 3 lies in the melting range of the foil 1 and the pressure exerted on the part 3 together with the rate of movement of the part 3 is such that the coating 2 with a portion of the subjacent foil 1, considered in thickness direction, is cut through according to the line 4.

Abstract: A stiffening agent is applied in liquid form to the fabric by screen printing. Thereafter the fabric is dried and further treated. The agent is contained above the screen in a sealed container. Means are provided for varying the pressure in the container to thereby vary the flow of the agent through the screen. The container can be compartmentized to provide different flow rates at different locations of the screen. Also, instead of a stiffening agent, there can be printed a dye in a like manner. The dye and stiffening agent can also be printed together in a mixture.

Abstract: An improved method for die cutting a plastic or paper web which is used in the formation of the trays, pouches and such composite structures for containing food or other consumable products, or is used in the formation of hospital or medical products, for instance filters employed in medical procedures, is effective to provide smooth cut edges of the tray without any hair-like sliver members. In the process where a rotary die cutter is employed and includes a support member for supporting the web to be cut, a frangible but non-splintered coating is first applied to the surface of the web coming in contact with the support member. The web is conveyed between the rotatable die cutter and the support member and the die cutter cuts the web by penetrating the entire thickness thereof, however, the cutter blade does not come in contact with the support member.

Abstract: A method for producing a one-side zinc plated steel sheet, comprising;(a) a step of coating a steel sheet with zinc,(b) a step of heating the zinc-coated steel sheet to alloy at least the coated zinc on one side of the steel sheet with the steel sheet, and(c) a step of mechanically removing the coated zinc thus alloyed.

Abstract: A method of and apparatus for uniformly debossing and perforating a ribbon of thermoplastic sheet material or film through the use of vacuum in combination with a flash heating source such as a flow of hot air. The apparatus causes a ribbon of such film to be forwarded from a supply such as a roll of thermoplastic material, then about a circumferentially extending portion of a rotating debossing-perforating cylinder, and then downstream where the debossed and perforated film may be further processed or where it may be wound on a spool to form a roll thereof. The debossing-perforating cylinder comprises a perforated tubular member through which a plurality of independently adjustable levels of vacuum can be applied from within the cylinder to circumferentially spaced sections of the film in contact with the exterior surface of the perforated tubular member. The apparatus further causes a virtual curtain of hot air to be directed radially inwardly towards a predetermined zone of the perforated tubular member.

Abstract: A graphic laminate for mounting a sheet-like article such as a photograph or the like includes a flat mounting base, a layer of plastic material having a pressure sensitive adhesive coating on both surfaces thereof, one such surface being placed in contact with the front side of the base and the sheet-like article being placed in contact with the other surface of the plastic material to form a laminate with the plastic material lying intermediate the base and the sheet-like article. The description includes a method of making this laminate.

Abstract: Non-skid floor covering having a plastics wear layer over a vinyl substrate. The wear layer has dispersed therein between about 20 and about 40 wt % particulate plastics material in the size range between about 200 mesh and about 1/16 inch. The particulate material has a hardness of not more than Rockwell M-100 and a Taber abrasion weight loss of not more than about 75 mg per 1000 cycles using CS-17 wheels and 1000 g weights.

Abstract: A method of prolonging the life of a tool joint on a drilling pipe, the tool joint including an external tapered surface of 18.degree. providing an elevator shoulder, including steps of preparing or treating the tapered eroded surface, depositing in the area of said tapered surface a selected amount of material of selected metal hardness, and grinding the external surface portions of said deposited material to provide a smooth external uninterrupted surface of selected hardness and smoothness and inclined at 18.degree. to the longitudinal axis of said pipe. A tool joint for a drill pipe having an external cylindrical surface and an external tapered surface merging with the surface of the pipe length, said external tapered surface on hardened metal being smooth, uninterrupted, and lying in a surface generated by rotating a straight line at an angle of 18.degree. to the axis of the drill pipe.

Abstract: A method for forming a drive wire hole in a ferrite toroid phase shifter pted to operate in the millimeter frequency range. The ferrite toroid is fabricated by the arc plasma spray process. A slab of boron nitride is initially bonded to the dielectric insert of the ferrite toroid and the ferrite powder is arc plasma sprayed on the composite boron nitride-dielectric structure. The formed ferrite toroid is then annealed, and during the annealing process, the boron nitride slab is completely sublimated to form the required drive wire hole.

Abstract: A weakening composition printed onto newsprint in a predetermined pattern causes the newsprint to weaken within a short period of time along the lines of the pattern so that the newsprint tears preferentially along the outline of the pattern.

Abstract: In a process for forming an extremely hard-wearing rubber or bearing surface on a metal machine part, particles of hard grit, such as carbide grit, are deliberately formed into the surface using a resiliently-loaded tool, so that the surface becomes permanently impregnated with the hard particles. During the operation the particles can conveniently be contained in a slurry that flows over the surface. After impregnation, a lapping operation is performed on the impregnated surface using a fine carbide grit.

Abstract: A method of manufacturing a heat-insulating polyurethane foam lining of a container having a rigid outer shell with flat inner wall surfaces that intersect to form corners of the container for transport or storage of liquefied gases is disclosed. The flat inner surfaces of the rigid outer shell of the container located in both sides of a corner of the container are covered with polyurethane foam by spraying layers of polyurethane foam onto the surfaces and on top of each other. The end parts of the layers of polyurethane foam which are located adjacent to the corner at the intersection of two surfaces are cut or ground to form a gap defined by substantially flat planes adjacent to the corner. A thin layer of a sealing material is then applied onto the flat planes of the gap and allowed to set. The sealing material may be either an epoxy resin formulation or a polyurethane resin formulation.

Abstract: The pile is trimmed from selected regions of pile fabrics by applying stiffening agent to the regions from which the pile is to be trimmed, this stiffening agent is then hardened and the fibers thereof are then severed from the regions to which stiffening agent was applied by drawing the fabric past a cutter having a blade which allows the fibers in the untreated regions to deflect out of its path but severs the fibers to which stiffening agent has been applied. Residual stiffening agent is then removed by scouring.

Abstract: An antistatic and/or electrically conductive floor covering which comprises a sheet of a thermoplastic synthetic resin which is substantially electrically non-conductive, said sheet having a plurality of holes penetrating therethrough and electrically conductive material filling said holes with one side of the sheet being coated with said conductive material so that the materials in each of said holes are connected to one another.

Abstract: A method for printing braille characters by means of a lithographic printing process in which photosensitive sheet material is exposed to form a dot image of one or more braille characters on the sheet material. The sheet material is then developed and subsequently photographed and a negative made of the developed sheet material. The negative is stripped onto a goldenrod sheet and the stripped negative is exposed on a light-sensitive lithographic plate which is subsequently developed. The dot image developed on the lithographic plate is then offset printed on sheet material stock and the printed sheet stock is passed through a thermography machine to form raised braille characters on the sheet stock.

Abstract: Rolls of vinyl wall paper and the like are concurrently automatically dispensed and accurately metered and coated preparatory to being accurately cut to length while providing for rapid and uniform metering of such material without wrinkling thereof. The process provides substantial improvements in productivity and material utilization.

Abstract: A method for reducing lace breakage in a process in which a continuous roving is impregnated with a polymer powder before melting and consolidating the impregnated roving, wherein the consolidated lace tension is continuously recorded and the supply of polymer to the roving correspondingly adjusted.