Abstract: A device for supplying gases to a perforated vessel, particularly a boat or boats for processing semiconductor elements by their exposure to the gases, comprises at least one tubular perforated gas manifold disposed under the perforated part of the boat and supported on a manifold raiser. The vessel is supported on two cylindrical support members which closely abut the boat and the manifolds which in turn abut the manifold raiser along the working length of the boat and the supporting members. A relatively small gas expansion cavity is thereby created between the manifold(s) and the boat which improves the manufacturing process.

Abstract: In the production of a decorative sheet, a synthetic resin paste is first applied onto the upper surface of a substrate sheet to form an undercoat layer. Then, one or more pastes, each being of the same material and having approximately the same viscosity as the paste of the undercoat layer, are laterally sprayed so as to drop onto the undercoat layer. The result is a smoothing phenomenon, with the pattern layer cooperating with the undercoat layer to form a smooth patterned surface. Finally, the pattern layer is heated and jelled.

Abstract: There is disclosed a method for flame-proofing of shingled roof coverings wherein the shingles are coated on at least their exposed sides with a flame-proofing composition and the roof covering is provided with at least one continuous bead of a flame-proofing caulking composition which extends coextensively with each course of the shingles, thereby sealing each course of shingles to the underlying or subjacent course of shingles. The preferred flame-proofing composition is a mixture of a thermoplastic, ambient-temperature, film former such as a polyvinyl acrylic acetate latex, and alumina trihydrate and glass fibers. The preferred caulking composition has the same composition and also contains a thixotropic ingredient to obtain a paste consistency. The film former is a conventional latex used for coating compositions and should have the property of softening at or below the dehydration temperature of alumina trihydrate (about 280 degrees F.) and be capable of forming a stable foam at such temperatures.

Abstract: Apparatus for applying partial surface coatings to textile substrates, particularly adhesive compounds in fixing inset technology. A cylinder rotatable about a cylindrical axis has inner and outer cylindrical surfaces with perforations extending through these surfaces. A coating head mounted inside the cylinder has a coating nozzle adjacent and facing the inner surface. The head includes a feed duct, a main duct extending from the feed duct and an opening chamber extending from the main duct. The opening chamber is bounded by two sealing lips adapted closely to the inside of the cylinder, supported by a mounting structure for the chamber and defining an outlet opening therebetween for controlling flow from the chamber. The structure has rods attached to the lips and adjustably coupled to the coating head to enable the opening to be adjusted in width.

Abstract: A method of manufacturing a patterned, colored surface on an object having a surface of relatively low surface absorption when compared to the interior of the object, and the article produced by the method. The method comprises the steps of first preparing the pattern on the surface of the object by contouring predetermined portions of the surface, so that recesses are created therein having a substantially greater surface absorption, and subsequently applying to the entire surface including the recesses a paint containing dye pigment, solvent, and about 0.5-8%, calculated on the entire quantity of the paint, of inert, non-soluble fine-grained particles having a maximum cross dimension which is substantially larger than the maximum cross dimension of the dye pigment.

Abstract: The present invention relates to improvements in impregnated wood preserving processes utilizing naphthalene containing preservative agents comprising recovering that portion of the naphthalene stripped from the preservative agent during a drying phase in the process and returning said recovered naphthalene portion to the impregnation phase of said process.

Abstract: A releasing agent applicator for a toner fixing apparatus including a hot fixing roller and an elastic pressing roller between which toner, transferred onto copying paper, is fixed. It includes a heat resistant felt for holding a releasing agent. A porous polymer membrane is disposed between the felt and the fixing roller. A heat resistant polymer film is thermally fused between the felt and the membrane to bond the membrane to the felt except that portion of the membrane which is brought into contact with the fixing roller. The felt is impregnated with releasing agent and that portion of the membrane without the film may be brought into contact with the fixing roller to allow the releasing agent to be applied to the fixing roller.

Abstract: Apparatus for manufacturing battery plates includes a mechanism for transferring battery plate panels between conveyors comprising a supply conveyor having a discharge end, a receiving conveyor having a receiving end located adjacent to and below the discharge end of the supply conveyor and including an endless member movable along a predetermined path and having thereon a battery plate drive lug adapted to engage a battery plate panel and thereby to cause transport of the battery plate panel along the receiving conveyor, and a drive for periodically advancing the endless member in the direction of conveyor advance and through a predetermined distance greater than the length of a battery plate panel, guides stationarily located adjacent the discharge end of the supply conveyor for guiding battery plate panel travel from the supply conveyor to the receiving conveyor, another drive for advancing the supply conveyor so as to deliver battery plate panels onto the guides for delivery to the receiving conveyor, and

Abstract: In a molecular beam epitaxy apparatus, the loading chamber for introducing the substrates is made separable from both the preparation chamber for cleaning the substrates and the growth chamber for forming thin films onto the respective substrates, so that the evacuation of the loading chamber is possible even when the loading chamber is separated from the apparatus, thus improving the productivity thereof.

Abstract: An apparatus that determines the density of the liquid developer in a xerographic system by depositing charged toner on a NESA glass segment, and optically measuring the density of the toner. A cleaning station is also provided. If the toner density is too low, more toner is added, and the test is repeated.

Abstract: A method of applying a reflecting effect to a design drawn on a surface of material. The method comprises preparing the surface to be treated, using a preparation technique dependent upon the material. The preparation includes cleaning the surface and for certain surfaces, such as plastics, to sensitizing the surface to receive the colors to be later applied. Thereafter, the design to be applied is initially applied to the surface. A coat of varnish is applied over it. An aluminized surface is applied over that. Then the various colors of the design are applied according to the original design which had been applied beneath the coat of varnish. Once the colors have dried, a further coat of varnish is applied and microspheres of glass are strewn over the coat of varnish to be affixed therein as the varnish dries, thus obtaining a surface with a reflecting effect. A further durable coat of a flexible varnish is thereafter applied.

Abstract: A coating device comprises a liquid composition supply unit for continuously supplying a liquid composition at a fixed rate, and coating unit for applying the liquid composition to a surface of an article to be coated, the coating unit comprising a coating head composed of a coating member mounted on a supporting frame pivotally mounted to the head and connected to the liquid composition supply unit, and a driving unit for moving the coating unit along the surface of the article to be coated. A preferred embodiment of the device includes an anti-curing unit for preventing curing of the liquid composition on a surface of the coating member, comprising an anti-curing tank provided with an opening through which the coating unit may come in and out of the tank and a shutter which is adapted to open and close the opening. The coating device is particularly useful for applying the liquid composition to an article with a three-dimensional curved surface.

Abstract: A device for developing an electrostatic latent image formed on a photosensitive member includes a composite sleeve which is comprised of a cylindrical support, a dielectric layer formed on the support and a plurality of fine magnets serving as floating electrodes embedded in the dielectric layer and which is driven to rotate to carry magnetic toner as magnetically attracted to its outer peripheral surface.

Abstract: Decorative panels are prepared employing a support of a transparent material having one of its faces dulled to enhance adhesion of a lacquer thereon. The processes also include applying a layer of a volatile liquid carrier containing metal and/or metal oxide particles. Also applied is a lacquer that is not miscible with the volatile liquid carrier. In one of the embodiments, the liquid carrier thrusts back the lacquer forming holes in the lacquer to reach the dulled surface of the support and adhere thereto. In the resultant panel, the particles are visible through the thickness of the transparent support at locations corresponding to the holes in the lacquer.

Abstract: A method and apparatus for making an abrasion-resistant magnetic recording product comprising forming a magnetic film on the surface of a substrate in a vacuum container, and thereafter, vapor depositing a lubricant on the surface of the magnetic film in the same vacuum container. If necessary, the surface of the magnetic film can be oxidized in the same vacuum container, prior to vapor depositing the lubricant.

Abstract: The present invention relates to a method of impact plating selected metal powders onto metallic articles. The powders are non-spherical and are characterized by an elongated, irregular surface which may contain at least one concave portion. Such metal powders are plated onto metallic articles having a Rockwell hardness of at least B-40. The method results in metallic articles having a substantially uniform coating composed of the impact plated metal powders.

Abstract: A method of coating a substrate with a thin film of a polymer of predetermined porosity comprises depositing the thin film on the substrate from a non-gelled solution comprising at least one hydrolyzable metal alkoxide of a polymeric network forming cation, water, an alcohol compatible with the hydrolysis and the polymerization of the metal alkoxide, and an acid or a base, prior to depositing the film, controlling the structure of the polymer for a given composition of the solution exclusive of the acid or base component and the water component, (a) by adjusting each of the water content, the pH, and the temperature to obtain the desired concentration of alkoxide, and then adjusting the time of standing of the solution prior to lowering the temperature of the solution, and (b) lowering the temperature of the solution after the time of standing to about 15 degrees C.

Abstract: A process for the production of colored films of paper impregnated with synthetic resin which contain melamine resin and have a three-dimensional surface structure, by printing the paper films with a colored pattern using an aqueous protein-based printing ink and lacquering thereover. The color which is printed in the regions in which the lacquer layer is to be thinner than in the other regions contains a lacquer repellent, and the printed and dried paper film is impregnated with an aqueous impregnation of a melamine resin from the unprinted side, with the formation of a one-sided excess of resin, and is dried. The printed and impregnated film is coated on the printed side with an aqueous lacquer based on melamine resins, and the lacquered film is hardened at elevated temperature without applying pressure. A laminate is produced by joining the unprinted side of the hardened film to a substrate such as chipboard.

Abstract: A method for printing fine or commercial art utilizing visible and/or invisible fluorescent colorants and non-fluorescent colorants in a multiple series of colorant applications with each color application being made with with a predetermined print pattern. As used herein, "fluoresecent colorants" are those which emit visible light under the ultraviolet (black light), including those which are colored and those which are colorless under visible light. The colorants are applied to a base in layers or by blending the fluorescent and non-fluorescent colorants to achieve a predetermined piece of art work. Some of the layers of colorants are used to mask, or partly mask, the brilliance of some of the fluorescent layers, in graduating degrees for viewing under ulrtraviolet observation, or viewing in other lighting conditions.

Abstract: A process and apparatus for high pressure impact coating of portions of workpieces such as the threaded openings in fasteners in avoidance of contaminating undesired portions of the workpieces with the coating material. A metered quantity of coating material is charged into a passageway and moved by low pressure air to a chamber ahead of an atomizing nozzle. High pressure air is introduced to the passageway and the coating material is fogged into a chamber defined by the workpiece and tooling. Proliferation and impingement of the cloud on the selected surfaces follows under vented conditions. A constriction in the vent line achieves the necessary delay and sets the system for accomplishing the coating. The machine structure facilitates use of the coating devices with a wide range of female threaded fasteners and achieves the process steps while providing for flushing the lines and drying the working structure.