Abstract: The invention concerns a filtration block for liquid alloys and metals, with a mechanical and physical-chemical effect.Consolidating, for example by sintering, elements of an active mineral compound based on fluorides, results in a porous structure with a high degree of permeability, which acts both by a mechanical filtration effect and by a washing action in respect of the metal under the action of the active mineral compound which acts as a flux and provides for trapping inclusions.Use for the final purification of aluminium, aluminium-base alloys, magnesium and magnesium-base alloys.

Abstract: Method and apparatus for shaping of mats composed of loose fibers with a thermosetting resin interspersed throughout. The apparatus compresses the mat and exposes its laterally extending surfaces to elevated temperatures to obtain partial curing thereof. Slits are made in the surface regions adjacent areas where extra shaping will occur in forming the final product. These slits enable more precise shapes to be impressed upon the mat and eliminate the tendency of the partially cured areas to spring back to a position of lesser compression.

Abstract: A method of securing fiber reinforced glass matrix composite material to structural members is disclosed. Two materials to be secured together are provided with a hole or other opening for insert of the fastening means. A fastening means, preferably a rivet or bolt is provided by hot pressing glass matrix material in and around unidirectionally oriented continuous length silicon carbide fibers. Such material is coined and optionally provided with threading. After formation, the bolt or rivet is inserted into the opening provided to attach the materials together and the open end of the rivet or bolt closed either by nut means or by heat deforming. The resultant secured composite-structural member remains inseparable in use, for example, in an environment of extreme temperature fluctuation. The structural member can also be fiber reinforced glass composite material, metal, unreinforced ceramic or other high temperature composite.

Abstract: In a method of continuously manufacturing sheets of material such as wood chip board in which a bed of material is fed from one conveyor belt to another conveyor bed which forms part of a continuous press, in order to avoid problems caused by the discontinuity at the gaps between the two belts, a web of paper is fed onto the conveyor belt and caused to travel with the conveyor belts, the bed of material then disposed on the paper, permitting the paper to bridge the gap between the conveyor belts without disturbance of the bed of material. The paper, which is then pressed and intimately bonded to the bed of material when making the sheet of material, is subsequently ground off.

Abstract: A molding mixture comprising a filler, such as wood particles and a resin binder, is pressed under light pressure on a flat bed to produce a mat with a density between 1/15 and 1/3 of the material in the finished article to be made by pressure molding. A molding preform is then made from a piece of such mat having a suitable contour, by sculpturing one side of the mat with suction devices to provide a thickness variation over the mat area corresponding to the requirements of the molding step.

Abstract: A method is disclosed for the preparation of granulated perborate salts having improved utility in compressible compositions such as those formed into denture cleanser tablets. The method broadly comprises forming a mixture of one or more perborate salts such as sodium perborate monohydrate and anhydrous sodium perborate, with a polymeric fluorocarbon such as polytetrafluoroethylene, with the polytetrafluoroethylene present in an amount ranging from about 0.01% to about 0.70% by weight of the perborate salt. The particles thus prepared exhibit combination of improved hardness and specific weight that facilitates their participation in the compressible cleanser composition, together with enhanced disintegration characteristics that are favorably imparted to the cleanser tablets.The present invention also includes the granular salts prepared by the method, which have a broad range of utility in detergents, cleansers and the like.

Abstract: Cement bonded boards are manufactured by mixing wooden chip material with cement, additives and water and forming this mixture into a mat from which individual sections corresponding to the desired length of the board blanks are then produced. The individual sections are pressed and then hardened by the application of heat which produces initial setting of the cement. The boards are then left for a period of time so that the cement bond can reach its full strength. After this stage the boards are passed through a conditioning channel to achieve a moisture balance between the atmosphere and the board material. Only at this stage are the boards subjected to an edge preparation process in which they are trimmed to the final size. The waste material is at least partly comminuted and return to the beginning of the process where it is once again added to the chip material prior to the mat forming step.

Abstract: An electrical socket connector is detachably connected to a post terminal having two axially arranged contacts. The socket connector comprises a one-piece ceramic connector body having a pair of tiered terminal cavities each of which is closed at one end and has a central guide rib. Each cavity retains an appropriately sized channel-shaped contact terminal and communicates with a socket for receiving the post terminal lead wires which project through a boot for sealing the open end of the connector body.The one-piece connector body is made by dry pressing ceramic powder into a machineable preform with terminal cavities. The preform is then drilled to provide the socket and retention shoulders in the longitudinal ribs.

Abstract: A method and an apparatus for manufacture of moulded mineral wool objects which are bound by a binder and which have a substantially constant cross-section along their entire lengths, whereby mineral wool in the form of flocks and/or granules which are impregnated or mixed with a binder and which are collected in a feeding chamber to which a mould channel is connected. The mineral wool is continuously or stepwise pressed by a compressing device into and through the mould channel and during the movement therein it is subjected to a heat treatment to cure the binder of the mineral wool, whereupon the continuous body of bound mineral wool is expelled from the channel. If desired it is subjected to a surface treatment or any subsequent treatment and is cut into intended lengths. The channel may include one or more cores providing one or more axial bores through the mineral wool body.

Abstract: The present invention relates to a method for preparing synthetic shaped cementitious compositions having high quality even without the addition of high energy binders, such as portland cement, through the use of the spent residue from a fluidized combustion bed of the type wherein limestone particles are suspended in a fluidized medium and sulfur oxides are captured, and pulverized coal fly ash.

Abstract: A pasty mix of granular grits, binder and filler is pressed through a sieve web by rolling action to form cylindrical, worm-like extrusions. After hardening in a heating duct the extrusions are subjected to the same action and thereby granular grit particles are formed each of which contains several grits.The apparatus for carrying out the method includes a sieve web which co-operates with a rotor having several freely rotatable rollers around its periphery.

Abstract: This invention pertains to a field of the art for producing crude oil from rice bran, and it relates to a pretreatment method for extracting crude oil from rice bran and an apparatus used therefor.The object of this invention is to obtain an extremely high-quality and light-colored crude oil from rice bran while eliminating any risk of environmental pollution in the pretreatment process for the extraction. In order to accomplish this object, as the pretreatment for extracting crude oil from rice bran, said rice bran is compressed in a screw extruder to break the cells in said rice bran and mold it into a form suited for the extraction of crude oil.

Abstract: An improved method of manufacturing a composition for bonded magnets in which deterioration of the composition due to heat is prevented, while uniform dispersion of ferrite powder is achieved for stabilization of physical properties and various characteristics of the resultant bonded magnets.

Abstract: A process for the preparation of a liquid-absorbing material from fibrous waste sludge is disclosed comprising the steps of partially dewatering the waste sludge to yield a semi-dry fibrous mass, forming the fibrous mass into a pelletized configuration, and drying the pellets into a resultant pellet product having a bulk density not exceeding 400 kg/m.sup.3 and a water content of 0.5 through 10 percent by weight. Suitable dyes, odorants and/or biologically active compounds such as insecticides, fungicides, and bactericides may be added to the fibrous mass to adapt the resultant dried pellet product for use in particular absorption applications.

Abstract: A method for making a solid pharmaceutical and/or nutritional dosage form that is suitable for oral administration. A prescribed dosage of a pharmaceutical or active substance (including either or both of a vitamin and mineral) is mixed with a carrier or base material comprising cohesive lecithin granules or powder. The resulting combination is blended into a substantially homogeneous mixture having a plastic consistency that is characteristic of the lecithin. The mixture is then shaped into a desired solid form by a conventional technique, such as, for example, that including either extruding, molding, or rolling. The shaped form is then cut into a plurality of convenient, swallowable dosage units ready for packaging and distribution. The dosage units may be coated, so as to be provided with a finished appearance and resistance to moisture.

Abstract: To synthesize a particulate phosphor, an intimate dry mixture of phosphor-producing compounds is pressed, as by uniaxial or isostatic pressing, to a self-supporting preform of the desired shape and to a prescribed density. Then, the preform is heated to a reaction temperature and cooled to produce a friable cake of phosphor particles. The cake is broken apart, and the phosphor particles are washed and dried.

Abstract: A radome and the method of manufacture thereof are presented wherein the radome is constructed from a series of rings of fiber reinforced polytetraflouroethylene. The rings are machined from a cold molded PTFE-fiber composite billet and then loaded into a mold cavity. The rings are then subjected to heat and pressure to sinter them together. The resulting structure is machined into its final shape.

Abstract: In order to carry out a fine and very fine comminution of brittle material, a bed of bulk material to be comminuted is first stressed between two practically non-yielding hard surfaces with a compression of at least 500 kg/cm.sup.2 to result in energy sufficiently high not only to cause comminution, but to also cause a distinct agglomeration or briquetting of the particles, whereafter the resulting agglomerates or briquettes are disintegrated by further mechanical stressing in a separate device.

Abstract: A process for the preparation of shaped bodies includes preparing a plastic mixture of a material selected from the group consisting of aluminum oxides, aluminum hydroxides, silicon oxides, silicon hydroxides and mixtures thereof from a predominantly dry component K1 in powdered form and a paste component K2 comprising water and additional additives, continuously extruding the plastic mixture into cut lengths, shaping the cut lengths into spherical shaped bodies and drying the spherical shaped bodies and optionally tempering such bodies to form catalyst and catalyst supports. The solids content of the powdered component K1 is from 65 to 100% by weight whereas the solids content of the paste component K2 is 10 to 50% by weight. Preferable spherical shaped bodies are based on Al.sub.2 O.sub.3, SiO.sub.2, or Al.sub.2 O.sub.3 /SiO.sub.2.

Abstract: An animal litter is prepared by de-watering rejects of a secondary fiber plant, incorporating a deodorant therein, for example, sodium bicarbonate, pelletizing, and drying. The rejects on a dry basis consist essentially of about 50 percent to about 90 percent cellulose and from about 10 percent to about 50 percent fiber making mineral filler, usually kaolin, and sodium bicarbonate is incorporated therein in the amount of between about 1 percent to about 10 percent on the dry basis. Paper broke also may be incorporated.

Abstract: The processing of thermoplastic materials by working the thermoplastic materials into a hot flat sheet. The sheet material is first deformed or scored into a series of parallel strands that are interconnected by thin ribbons of the thermoplastic material thereby retaining integrity of the sheet material. The sheet material is then severed along the score line of the thin ribbons to form parallel strands which are cooled and guided to a fly cutter which cubes the strand material.

Abstract: This invention provides composite material compositions comprising wastepaper, a thermoplastic resin and/or other additive(s), said compositions having higher heat resistance, flame retardancy and mechanical strength and smaller linear shrinkage in molding than the conventional compositions of synthetic resins alone or blended with woodmeal or an inorganic filler. There is also provided a method of producing said compositions comprising a wastepaper crushing step, a step of mixing crushed wastepaper with a thermoplastic resin and/or other additive(s) while drying said wastepaper, a blend melting step, a blend kneading step and a blend granulating step. In an embodiment of this invention, scraps of moldings from the composite material compositions using wastepaper may be mixed with wastepaper, a thermoplastic resin and/or other additive(s) and similarly treated and molded into a new composition.

Abstract: The present invention is directed to a method for compressing and agglomerating coal dust without the use of bonding agents in which the coal dust is passed through a conventional roll press operating at a compressive force of at least 20 kilonewtons (kN) per centimeter (cm) of roll width. The high pressure conditions make it possible to secure suitable compression and agglomeration at temperatures below 200.degree. C.

Abstract: Distortions during printing and laminating are minimized by printing the design on a stable base, preferably release paper, and then transferring the printed design to a hot plastic web made continuously by an extruder. A stress relieved hot plastic film is then laminated to the printed web to provide a protective wear coat. To emboss in register with the printed design, the laminated product is first aligned by means of registration marks that are printed along with the design. Embossing is then made using a conventional engraved roll having raised sections which are images of the printed design. After embossing, the web is partially cooled and annealed. It is then aligned with a die cutter using the same registration marks as used for alignment during embossing. As a result, individual tiles can be cut automatically in register to the printed and embossed pattern.

Abstract: A method of making a ZnO powder composition, which can exhibit non-linear V-I characteristics, comprises the steps of: (1) mixing about 75 mole % to about 98 mole % of small, finely divided, solid ZnO and about 2 mole % to about 25 mole % of at least one small, finely divided, solid additive oxide effective to produce nonlinear characteristics, with an aqueous binder solution comprising an organic, water soluble fugitive binder, to provide a slurry; (2) simultaneously drying, mixing and agglomerating the slurried solids into a mass of larger substantially spherical particles containing the finely divided solids and binder; (3) pressing a mass of the agglomerated particles, to provide a cohesive pressed green body; and then (4) heating the pressed body, first at a temperature rate increase effective to slowly decompose and remove the fugitive binder from the body and then heating at a temperature of between 1,050.degree. C. to about 1,400.degree. C.

Abstract: A method of producing granular sodium dichloroisocyanurate, comprises the steps of forming thin columnar pellets of sodium dichloroisocyanurate from wet powdery solids thereof obtained in the manufacturing process, drying the pellets to remove free water therein, compacting, crushing and screening. According to this method, granular sodium dichloroisocyanurate in the form of anhydride, monohydrate or dihydrate may be obtained by controlling the temperature and the humidity of heating air used in the drying step.

Abstract: Fibrous glass blowing insulation is made by slitting and crosscutting a blanket of fibrous glass wool into small columns and conveying the columns to a bagging machine, the columns normally breaking up at random during conveying and packaging into approximate cubes and smaller flakes or prisms of various thicknesses.

Abstract: Cellulosic fibrous material which can be pressed into moulded parts is manufactured from cellulose-containing material which is separated into a fibrous material, the separated fibrous material then being mixed with a binding agent (particularly a combination of thermoplastic and thermosetting substances) and formed into a fleece which is compressed under heat action. The cellulose-containing starting material is derived from waste cellulosic fibrous material and such waste material is cut up and ground in a dry state and the bonding agent is added in particulate form also in the dry state.An apparatus is described which has a pre-pulverizing apparatus, a mixing chamber, a grinder, an endless fleece conveyor, a forming head, a heating apparatus and a pressing apparatus.The resulting cellulosic fibrous material can be pressed into moulded parts between pressing tolls in the dry state and with a single pressing stroke.

Abstract: This invention provides composite material compositions comprising wastepaper, a thermoplastic resin and/or other additive(s), said compositions having higher heat resistance, flame retardancy and mechanical strength and smaller linear shrinkage in molding than the conventional compositions of synthetic resins alone or blended with woodmeal or an inorganic filler. There is also provided a method of producing said compositions comprising a wastepaper crushing step, a step of mixing crushed wastepaper with a thermoplastic resin and/or other additive(s) while drying said wastepaper, a blend melting step, a blend kneading step and a blend granulating step. In an embodiment of this invention, scraps of moldings from the composite material compositions using wastepaper may be mixed with wastepaper, a thermoplastic resin and/or other additive(s) and similarly treated and molded into a new composition.

Abstract: Multi-sided decorative moldings and furniture parts are manufactured by drying or hot-pressing a cellulosic fiber-containing mat to consolidate said mat into a unitary blank, cutting the blank to a size larger than interior dimensions of a closed mold in each of its three dimensions and with at least two generally shaped or profiled edge surfaces disposed between a top surface and a bottom surface of the blank. The cut blank is then molded at a temperature of at least 200.degree. F. for a period of time sufficient to permanently transfer the interior shape and design of the mold cavity to every surface of the blank.

Abstract: A cellulosic fiber containing board is molded at a temperature of at least 525.degree. F. to provide a relatively high density skin on at least one surface. A fibrous composition, including cellulosic fibers, is consolidated to form a consolidated blank. The consolidated blank is then cut to a shape larger in at least two of its three dimensions than corresponding dimensions of a mold cavity when said mold is in a closed position. Urea is then included in at least a surface layer of fibers of the blank in an amount of at least 5% based on the dry weight of the fibers contacted with urea, and thereafter the cut blank is molded to form a contoured product having a skin on at least one surface thereof. The skin is formed by hot-pressing a consolidated cellulosic fiber-containing board including urea in at least its surface fibers, at a temperature of at least 525.degree. F. The composition of the skin has not been determined but is different than the composition of cellulosic material thereunder.

Abstract: A process for producing a consolidated sheet of substantially dry fibrous material, for example wood pulp, comprising supplying fibrous material, having a moisture content of not more than 30 percent by weight on the total weight of the fibrous material, to a hopper and onto a gas-pervious conveyor while drawing gas through the conveyor (and through the fibrous material thereon), carrying the dry fibrous material on the conveyor surface from the hopper beneath means for reducing upward protrusions therefrom to form a layer of the fibrous material and applying pressure to said layer to consolidate the fibrous material to form a coherent sheet.

Abstract: A method for manufacturing magnetically attractive toner particles utilized for developing electrostatic latent images includes a first step of thermally kneading a mixture of a first resin material and minute particles of magnetizable material, and a second step of thermally kneading, with a second resin material having a higher softening temperature and/or a physically harder nature being further added at the same time, so that a mixture of these three materials, as a whole, is to constitute a composite material having a specific crushing nature. The composite material thus treated is consequently solidified, and then crushed, to form the toner particles, whereby minute particles of magnetizable material comprising each toner particle are respectively to be exposed from an outer boundary of the toner particle.

Abstract: Zeolite-containing agglomerates which rapidly disperse in water are prepared by admixing molten polyethylene glycol with a hot aqueous solution of alkylbenzene sulfonate, blending the resulting mixture with hydrated zeolite A crystals and thereafter drying and comminuting the blend.

Abstract: Tablets of sodium dichloroisocyanurate, produced with a specific moisture content, have flame resistance and thermal stability to avoid chain reaction thermal decomposition. Granular raw material for tabletting is prepared by forming columnar pellets of wet sodium dichloroisocyanurate obtained in the manufacturing process, drying the pellets to remove free water therein and to regulate the moisture content thereof to between 7 and 11%, compacting and crushing the pellets to obtain granules and then tabletting the granules under relatively low surface pressure.

Abstract: A method and apparatus for forming pellets from wood particulate material: The apparatus comprises one or more parallel aligned, elongated dies formed by first and second aligned and mating continuous belts comprising a plurality of pads linked together. At least one of the belts has pads that contains a plurality of parallel longitudinal grooves in their free surface and the pads of the other belt are confrontingly aligned with the free surface of the pads of the first-mentioned continuous belt, to form the elongated dies. The wood particulate material, containing from 12 to 20% water, is cut, compacted, extruded and autogenously heated in the elongated dies by simultaneously rotating one of the belts counterclockwise and the other belt clockwise at respectively rotational speeds such that the linear speed of one of the belts is greater than the linear speed of the other.

Abstract: A friction disc for a clutch or brake is formed from a plurality of arcuate segments. The segments are stamped from a rectangular sheet of pregrooved friction material, interconnected by integral tab and slot structures to form an annulus, and bonded to an annular metal member.

Abstract: Method for the production of cementitious compositions and aggregate derivatives of said compositions, and cementitious compositions and aggregates produced by said method, wherein fluidized bed combustion residue and pozzolanic material, such as pulverized coal combustion system fly ash, are incorporated in a cementitious mix. The mix is cast into desired shape and cured. If desired, the shape may then be crushed so as to result in a fluidized bed combustion residue-fly ash aggregate material or the shape may be used by itself.

Abstract: A method is provided for forming a wood product comprised of wood flakes and binder intermixed therein, and including a hole or aperture molded into the product, the aperture including a densified, high strength periphery. The method includes the steps of providing a female die plate having a forming surface and a bore extending through the die plate, the bore converging in the direction away from the forming surface. A male die plate is also provided in opposed relation to the female die plate, the male die plate having a forming surface and a tapered forming member aligned with the bore in the female die plate. A mat comprised of wood flakes and intermixed binder is placed between the die plates, and the die plates are forced together to compress the mat between the forming surfaces, thereby forming a rigid composite body.

Abstract: The invention relates to a process for improving the processing properties of powdery polyolefins. It is endeavored by this process to obtain a polyolefin powder which can be processed on screw extruders to an almost bubble-free product.The polyolefin powder is heated to a temperature of between 40.degree. C. and its melting point and introduced into a gap between two gap-forming elements. In this gap, the powder is compressed with a pressure of from 0.1 to 10 t per cm of gap length, and the powder so compressed is then comminuted.

Abstract: The invention concerns a process for the manufacture of pieces comprising least one part of an abradable, porous material, which may be integral with a support part. The process is characterized in that synthesis by diffusion of the abradable material is effected in a mold, at least one part of which constitutes the support piece.

Abstract: The moldings are manufactured from synthetic thermoplastics, from non-thermoplastic fibrous flakes, which are available in an uncoated or incompletely coated state, and from optionally admixed fillers. The fibrous flakes and the thermoplastic material are mixed under the action of pressure and heat to produce a precompacted composite material, in which the fibrous flake material constitutes about 65% or more by volume of the composite material, and the latter is then extruded and is subsequently finally shaped and finally compacted at the same time.

Abstract: Resins for use in making resin-coated granules are made by preparing a novolak resin from a phenol and formaldehyde in the presence of lactose and/or galactose, using an acid catalyst. Melt-coating the resin with an amine curing agent on to particulate refractory material gives resin-coated granules which can be moulded to make foundry moulds. The lactose and/or galactose can replace part of the phenol conventionally employed in preparing novolak resins and avoids the need for plasticizers.

Abstract: A method of making a dishwashing composition and the composition so produced comprises mixing an aqueous solution of sodium hypochlorite with substantially dry ingredients including phosphates known as sequestering agents or builder salts and a carrier material. An alkali metal silicate is also added in substantially dry form and/or as an aqueous solution. Agitation is continued until agglomerated granules of the desired size are attained. Following agglomeration, the composition is conditioned to reduce the moisture content resulting in a substantially dry, granular dishwashing composition. Preferably, a low foam non-ionic surfactant is sprayed onto the granules before the composition is packaged.

Abstract: A method for making a dimensionally stable decorative floor covering product. A sheet is first formed, and this is then provided with a decorative design. A clear wear layer is applied thereon, mechanically embossed-in-register, and then the sheet is cut into a plurality of individual tile units.

Abstract: An extruder for feeding finely divided solids. And, in combination therewith, means for using gas in various ways to repulverize the finely divided solids. It lends itself to a procedure for continuously charging finely divided solids with water into a high pressure reactor. The high pressure is inherently contained, and the solids are repulverized for use in a reaction.

Abstract: A method is provided for shredding and dry-defibrating compressed cellulose pulp, and depositing the resulting fibrous material on a foraminous support to form a batt of relatively uniform density while controlling the feed of cellulose pulp material through the shredding and dry-defibrating operations to the foraminous support according to the output rate of the batt-forming operation, to ensure a relatively uniform density in the batt withdrawn from the foraminous support.

Abstract: Cork-resin ablative insulation material is prepared in a form suitable for application to complex curved surfaces by mixing finely divided cork with a B-stage curable thermosetting resin, forming the resulting mixture into a block, B-stage curing the resin-containing block and slicing the block into sheets. The B-stage cured sheet is shaped to conform to the surface being insulated, and further curing is then performed. Curing of the resin only to B-stage before shaping enables application of sheet material to complex curved surfaces and avoids limitations and disadvantages presented in handling of fully cured sheet material.

Abstract: A process for pelletizing sorptive mineral "fines" which includes adding sufficient moisture to the particles of sorptive material to occupy the pore space therein, compactly forming the moistened mineral in a pelletizing machine, then removing the pore moisture in a suitable dryer or kiln so that final pellets retain relatively the same absorbent capacity and bulk density as the original material.

Abstract: Method of producing chipboards includes conveying elongated cauls end-to-end sequentially past a material-dispensing device, forming a mat of the dispensed material on the cauls, severing the mat transversely to chipboard lengths, feeding the severed mat lengths together with the cauls into a heating press and beating and compressing the same to form chipboards, withdrawing the chipboards and cauls together from the heating press and separating them from one another, and continuously reconveying the cauls past the material-dispensing device.In apparatus for carrying out the method, an endless conveyor for conveying the cauls end-to-end has entrainer dogs engageable with abutment rods on the cauls for advancing the cauls in a substantially horizontal conveying direction along an upper run of the conveyor located below the material-dispesing device.