Abstract: Fiberglass strips are arranged in a desired pattern. Parts of the strips are outside of a cavity and parts are inside surrounded by a quantity of polystyrene beads. The temperature of the beads is raised. This causes the beads to expand against the cavity and form the handle and also to expand against the inside parts of the strips and exert pressure on same. The latter pressure locks the strips in the handle. The temperature of the handle is then lowered and the handle is removed from the cavity. The eraser is in ready condition for shipment without further working. The parts of the strips outside of the cavity are used for removing chalk and/or ink from a board.

Abstract: Bristle articles can be manufactured in that the bristle carrier and optionally the ends of the bristles are melted and brought together under pressure, or the bristles are introduced into an injection or foaming mould for the bristle carrier and are embedded in the bristle carrier material by injection moulding or foaming. The cycle time of these processes is extremely long as a result of the thermal processes (heating, melting, injection moulding, cooling). It is possible to significantly reduce the same in that the tools for holding or producing the bristle carrier on the one hand and the clamping devices for the bristles on the other are moved on closed paths and the clamping devices at at least one common station are transferred to the path of the tools and at least during the thermal processes are jointly moved with the tools and are subsequently returned to their movement path.

Abstract: A process for permanently attaching smooth finished globules of coating material to the ends of the teeth of molded plastic combs, picks, lifts and the like, including roughening or oxidizing the teeth ends to remove the gloss finish and form a more adherent surface; dipping the roughened teeth ends into a bath of liquid coating material to attach a globule of coating material to each tooth end and cover the sharp mold-parting line located thereat; and drying the globules attached to the teeth ends.

Abstract: Molded carpet for use in motor vehicles is made by a method which allows the molding of carpet having deep well areas. The method comprises the steps of heating a plastic backed carpet blank to a degree to make its backing pliable and thereafter molding the heated carpet in a set of specially constructed molds. The molds generally have the shape of the floor area to be covered. However, they are arch-shaped from edge to edge at those portions of the mold where draws are needed to accommodate specially contoured well areas of the motor vehicle's floor area.

Abstract: A brush head for cleaning and massaging the teeth and gums is disclosed having a bundle of parallel fibers welded together to form a bottom plate. The brush head is produced by continuously feeding the parallel fibers to a heated mandrel, partially melting one end of the fiber bundle to form a bottom plate with a surplus of melted material extending away to form an extended bottom plate. The extended bottom plate is removed, leaving a bottom plate which is sufficiently rigid so as to be directly attachable to a driving device. The welded bottom plate assures that fibers remain firmly attach to prevent fibers from loosening or separating from the brush.

Abstract: A process and apparatus for the production of bristle articles include introducing the plastic bristles in the form of individual bristles or bristle strands through channels and sleeves extending the latter in to a mould for the bristle carrier, followed by thermal melting on their end located on the mould for formation of a thickened portion and the thickened portion on the bristle ends formed during melting is then sealingly engaged on the opening of the sleeve projecting into the mould. During the filling of the mould, the bristles and sleeve are kept in position within the same and the sleeve and the thickened portion on the bristle end tightly engaging against the opening of the sleeve are enveloped by the bristle carrier material during mould filling and then the sleeve is removed from the bristle carrier.

Abstract: A method for manufacturing a sculpture having simulated hair includes forming a rigid body of an animal figure having a plurality of small holes, cutting a plurality of lengths of metallic link chain to the desired length of hair strands for the body, soldering at least some of the chain links together with a metallic matrix having a lower melting temperature than the metal of the chain links, orienting the bonded chain links to style the chain into a preferred hair pattern, finishing the styled hair pattern chain with decorative metal plating or patina, and bonding the styled and plated chain hair pattern into the holes of the animal body.

Abstract: Bristle articles, which comprise a bristle carrier and thermoplastic bristles anchored therein are produced in that holes for receiving the bristles are formed on the bristle carrier, the fixing side ends of the bristles are melted, accompanied by a reduction of their length and the formation of a thickened portion and inserted with the thickened portion first into the holes on the bristle carrier.

Abstract: Bristle articles can be manufactured in that the bristle carrier and optionally the ends of the bristles are melted and brought together under pressure, or the bristles are introduced into an injection or foaming mould for the bristle carrier and are embedded in the bristle carrier material by injection moulding or foaming. The cycle time of these processes is extremely long as a result of the thermal processes (heating, melting, injection moulding, cooling). It is possible to significantly reduce the same in that the tools for holding or producing the bristle carrier on the one hand and the clamping devices for the bristles on the other are moved on closed paths and the clamping devices at at least one common station are transferred to the path of the tools and at least during the thermal processes are jointly moved with the tools and are subsequently returned to their movement path.

Abstract: A fiber reinforced plastic article which has a resinous matrix and a reinforcing material is provided with a smooth surface which can be easily painted by using a knitted or woven textile fabric having at least one tufted, fibrous, velvety, napped, brushed or pile surface as an external layer.

Abstract: A method for manufacturing products with bristles, composed of a bristle holder made of pourable or foamable material and plastic bristles anchored therein. The bristles are introduced through channels into a mold for the bristle holder, melted by heat at the end in the mold to form a thickening, and the thickening of each bristle is brought into a sealing fit with the opening of the channel guiding it, possibly leaving an undercut at the thickening, and the mold is then filled with bristle holder material. The bristles and bristle holders can be made from different materials by casting or foaming of the bristle holder, whereby the channels guiding the bristles are sealed off by the thickening so that the bristle holder material cannot escape to the outside and especially cannot have a disadvantageous effect on the bristle shoulder. In addition, a combined force and force-fitted anchoring of the bristles in the bristle holder is ensured.

Abstract: A brush head for cleaning and massaging the teeth and gums is disclosed having a bundle of fibers welded together to form a bottom plate, with a central axial tunnel expending part way into the fiber bundle, similarly made up of welded fibers. The brush head is produced by partially melting one end of the fiber bundle to form the bottom plate, with the bundle moved into contact with a heated mandrel, while the fibers remain substantially parallel.

Abstract: A method of forming a brush from a plurality of thermoplastic bristle filaments. The steps of the method include inserting the plurality of thermoplastic bristle filaments into a hollow mold tube, moving a hole former pin into a first end of the bristles, and heating the mold tube adjacent the first end of said bristles to melt the first end of the thermoplastic bristle filaments around the pin. The steps also includes cooling the mold tube, extracting the first end of the filaments out of the mold tube and extracting the pin out of the first end of said bristle filaments, whereby a brush having a hollow brush holder is formed for use.

Abstract: Process for the preparation of a composite material formed of reinforcing fibers, regularly distributed and oriented in more than two directions, and of a matrix filling up the space between said fibers.According to the invention, said process consists in: producing a convex brush of said reinforcing fibers, regularly distributed and fixed by one of their ends on a convex base, said fibers being subjected to an intensive D.C. electrostatic field, oriented in parallel to said fibers so that the fibers are immobilized in stretched condition perpendicularly to the base surface; inserting between said fibers, layers or grids of fibers, disposed successively at 90.degree. from one another, said insertion being carried out while the reinforcing fibers fixed on said base are subjected to the intensive D.C.

Abstract: A conveyor-transfer apparatus for transferring artificial Christmas tree piquets (branches) from a first conveyor on which the piquets are parallel to the direction of travel of the conveyor to a second conveyor where they are arranged transverse to the direction of conveyor travel whereby their ends can be tapered. This is accomplished automatically without the use of manual labor.

Abstract: In a toothbrush having a pair of adjustable bristle-mounting tabs which pivot relative to the bristle-mounting base so that the bristles mounted on the tabs may deflect in order to conform to varying tooth surfaces, a metal plate formed within the head of the toothbrush has opposite lobes thereof which extend into and form part of the tabs to provide better hinging action for the tabs and to prevent the tabs from breaking off and possibly being swallowed. The toothbrush is made using an injection mold, the lower half of which has a pair of dowels which are inserted in apertures within the opposite lobes of the metal plate to initially position the metal plate therein. The lower half and an opposite mating upper half together provide opposite mating pins which engage the opposite sides of the metal plate so as to precisely position the plate within a cavity defined by the joined opposite halves of the mold.

Abstract: A container closure includes a cap for sealing a container against leakage, and a brush for spreading contents of the container. The cap includes a top wall, an internally threaded skirt depending from perimetrical portions of the top wall, and a stem depending from a central portion of the top wall. The brush includes a plurality of bristles having (1) mounting portions which are secured to the lower end region of the stem, and (2) applicator portions which depend below the stem for brushing the contents of the container onto a surface. The cap is a one-piece structure having its brush-supporting stem formed integrally with other parts of the cap.

Abstract: In a method for connecting bristles to a bristle carrier, each of which is made of thermoplastic material, at least the ends of the bristles are heated so that a reversal of the molecules from an oriented stretched form to a non-oriented balled form takes place and thereby forms a thickening on the bristle ends, upon which the bristles with their thickened ends are inserted into the melted bristle carrier until the melt of the carrier flows behind the thickened end whereby after hardening of the melt an interlocking shape connection is obtained between the bristles and the bristle carrier which joint may also include, in the case of corresponding work material pairs, a material bonding, the interlocking shape connection being independent of the type of materials used for the two parts.

Abstract: The present invention relates to an Improved Mascara Applicator which is used to apply mascara to eyelashes. The Improved Mascara Applicator of the present invention incorporates a unique applicator design which contains a multiplicity of rows of closely spaced and evenly spaced applicator flukes which permits each eyelash to be evenly coated with mascara. The unique applicator design also incorporates a series of communicating channels between the multiplicity of rows of applicator flukes in order to permit mascara to flow from one row to the next. This built in mascara reservoir channel design feeds each of the mascara coating flukes with mascara in order to assure proper mascara flow to each eyelash. This unique design further eliminates the requirement of frequently dipping the mascara applicator into a pool of mascara to replenish the applicator.The present invention also relates to an improved method of manufacturing the head of this mascara applicator.

Abstract: A process for manufacturing a brush having an integral bristle retention feature. One end of each bristle tuft to be inserted into a molded brush body is fused into a ball-shaped mass. The body is molded around the mass, thereby anchoring the tufts in the body.

Abstract: A method for manufacturing synthetic brushes comprising synthetic filament fused directly to a synthetic polymer substrate is disclosed. A plurality of brush backs are formed integrally on a frame. The brush backs are then held stationary while a picking plate having a plurality of pickers, in a design of brushes, is indexed into a stock box and filled with tufts of synthetic filaments. The picking plate is then indexed out of the stock box and into a heated plate to fuse the ends of each tuft. The picking plate with tufts is then indexed into the frame-holding means whereby each of the fused ends is simultaneously mounted on each of the brush backs. In this way, a plurality of brushes are simultaneously formed. The brushes may then be packaged on the frame or individual gates severed to permit packaging of individual brushes.

Abstract: A method and machine for manufacturing brushes, in which bristle bunches are manufactured before being transported to a brush member, the individual bristles being connected to one another. Bristle bunches which are prepared in this manner are distributed by a distributor block to plural tubular conduits leading to a bristle bunch holder which holds the bristle bunches in a desired orientation relative to the brush member. The bristle bunches and the brush member are welded together by pressing them against one another, both the bristle bunches and the brush member having previously been softened at the welding regions. The tubular conduits can be of any desired length and can be routed in any desired direction to the brush member, which permits the manufacture of all brush shapes.

Abstract: A molded foam-backed carpet assembly is provided which is suitable for use in automobiles and which includes a carpet layer, a moldable thermoplastic polymer layer and a sound deadening foam cushion bonded to the thermoplastic polymer layer. The physical properties of the foam are controlled to provide enhanced vibration damping and sound deadening in the carpet assembly.

Abstract: A molded foam-backed carpet assembly is provided which is suitable for use in automobiles and which includes a carpet layer, a moldable thermoplastic polymer layer and one or more foam pads fusibly bonded to the thermoplastic polymer layer and extending over less than the entire surface of the thermoplastic polymer layer to provide desired cushioning and sound and thermal insulation only in preselected areas of the carpet where needed.

Abstract: A method for continuously making a brush-like material includes winding an adhering filament onto the outer surface of a flexible tubular member. The strands of wound filament and the tubular member are severed about the length of the tubular member to form a planar strip with filament segments adhering and extending across the width arranged in a spaced manner about the length of the planar strip. A portion of the planar strip is removed to expose the ends of the filament segments. The strips holding the filament segments are gathered and stacked in side by side relationship. The strips of filament segments and the exposed tips of segmented filament are immersed in a liquid anchoring material which is cured to secure the filament segments therein. The remaining strips of the tubular member are removed to form a finished strip of brush-like material.

Abstract: A process and an apparatus are, herein, disclosed for producing a carpet mat with an injection mold unit composed of two molds, a first mold having a carpet-accommodating cavity formed parallel to the parting line, a plurality of grooves being provided at a given interval in the part of a second mold corresponding to said carpet-accommodating cavity, at least one of the two molds having a cavity to form the edges of a mat base, said process comprising confining a carpet in said carpet-accommodating cavity, injecting a thermoplastic resin into the space between said carpet and the grooves to form a mat base which is simultaneously joined to the carpet.

Abstract: There is disclosed a method of operating an injection-molding machine to produce a composite item that includes a portion of soft material such as a set of bristles tending to cling to a mold cavity in which it is formed. At a first station, a relatively flexible plastic material is injected into a first cavity shaped to define the portion of soft material of the composite item, that portion including a backing layer. The portion of soft material is then allowed to cool, and at a subsequent station there is injected a relatively rigid plastic material into a second cavity bounded by the backing layer. The second cavity defines a harder portion of the composite item such as a brush handle. After the latter portion has also cooled, the portion of soft material is separated from the first cavity by pulling on the harder portion at a rate of speed slow enough to avoid rupture of the portion of soft material.

Abstract: The injection molding of brushes, particularly miniature brushes such as for the application of cosmetics, is carried out in a mold in which each of the cavities defining the bristles is defined by a plain surface of one mold piece and a grooved surface of another mold piece. The mold pieces are clamped together and a brush is formed by injection molding. An ejector rod facilitates removal of the molded brush from the mold, thus making it unnecessary to separate the mold pieces to remove the molded brush. However, the mold pieces may be unclamped and separated to allow the mold to be cleaned of foreign matter or broken bristles.

Abstract: A method of forming a layer of blown cellular urethane on a primary carpet backing comprising the steps of preparing a mixture of reactive urethane forming agents, controlling the temperature of the reactive mixture, shaping the reactive mixture into a layer upon a latex film, heating the urethane forming mixture to initiate chemical blowing of the mixture, applying the underside of a previously tufted and heated primary carpet backing directly to the upper surface of the mixture, heating the mixture to a predetermined temperature, applying pressure to the carpet and mixture and stripping the carpet and cellular urethane layer from the conveyor belt.

Abstract: A bristle for use in a railway roadbed broom is disclosed. The bristle is made of an elongate elastomeric core member with two elastomeric skin members bonded around it. Pieces of reinforcing stranded material are used to strengthen the interfaces between the elastomeric members.

Abstract: Brushes and the method of making the same by first forming a strip embodying a backing sheet with bristles disposed on one face thereof in parallel relation to each other and with ends projecting outwardly from one longitudinal edge of the strip; forming the strip into a predetermined shape; securing the aforementioned bristle ends in a base; and removing the backing sheet from the bristles.

Abstract: A method of manufacturing brush components is disclosed wherein an array of bristles which may either be loosely arranged in which case they should be substantially aligned or may be in the form of a knitted or woven tape is overlain by a membrane e.g. a polythene or polypropylene sheet, the bristles and membrane then being bent through 180.degree. about the center line of the array into a generally U-shaped configuration and subsequently held in that position by clamping means e.g. a metal channel or an extruded plastics beading. Preferably a strengthening wire is located over the top of the membrane and within the U at the base thereof.

Abstract: A method for making flared, tufted, brush constructions is disclosed. A plurality of synthetic filament tufts are picked, and the ends fused. Simultaneously, the fused ends are mounted parallel on a heat softened, thermoplastic support. Before the support cools, it is deformed to a convex configuration so that when the support cools, a flared, tufted construction is formed, suitable for mounting on a handle. The support may also be deformed to a concave configuration so that the tufts converge.

Abstract: Methods of manufacturing brush components are disclosed in which a plurality of predetermined lengths of brush bristle formed of synthetic resinous material are fed from a supply into the nip of at least one pair of endless haul-off belts so that the bristles are arranged substantially uniformly and parallel to each other with their ends in line. In one construction a single pair of haul-off belts having a width which is less than the bristles is used, the bristles projecting beyond the sides of the belts, and the thus formed bristle array is fed into an extruder whereupon a plastics material is extruded over the projecting ends of the bristles to hold them together and/or the ends are fused together, the resultant product, on emerging from the ends of the belts, then being slit centrally to provide two endless components.

Abstract: A method of manufacturing brush components and the brushes themselves is disclosed, wherein a woven brush fabric is formed, the wefts being provided by tows made up of a plurality of bristle filaments, for example polypropylene mono-filaments, and the warps being made up of polyester yarn, the woven material subsequently having beads of molten polymeric material extruded therein, transverse to the wefts and being slit transverse to the wefts, either before or after the extrusion operation, thus providing a plurality of brush tapes or components which can then be assembled into a holder either on their own or together with other strips, using the extruded polymeric material as a locking bead engaging in a groove in the holder.Preferably, before or during the extrusion step, the fabric is heated to at least soften it, and preferably fuse the filaments together, in the vicinity of the extruded beads. It is also envisaged that heating without extrusion could be used.

Abstract: A method of manufacturing brushes wherein two brush tapes which are formed of synthetic resinous material and incorporate a plurality of bristle filaments held together by a knitting operation or a weaving operation or by means of an extruded bead are arranged adjacent each other and held in this relationship by means of a bead of synthetic resinous material running along one side edge of the tapes. This bead may be extruded around the adjacent edges of the tapes or if beads of plastics material are already present on the tapes, may be formed by fusing the two beads together. There may be more than two adjacent tapes which may be arranged side-by-side or at an angle to each other or spaced apart and the construction of the tapes can be the same or different. Furthermore, one or more barrier layers may be located between the tapes. It is even envisaged that un-beaded tapes could be fused together, and the bead would then be formed by a forming operation.

Abstract: A mop yarn is produced by extruding onto the embossed face of a conveyor belt a first layer of a fiber reinforced sponge forming viscose mass, feeding regularly transversely spaced core yarns onto the conveyor advanced first layer and extruding a second layer of the sponge forming viscose mass onto the core yarn carrying first layer. The composite layers are then coagulated, regenerated and purified, and the resulting cellulose sponge web is then longitudinally slit to produce sponge strands in each of which is embedded and bonded at least one of the core yarns. The resulting cellulose sponge mop yarn is of rectangular transverse cross section and has low porosity water permeable top and bottom faces at least one of which is embossed and skinless side faces and each yarn has one or more core yarns of cotton twine embedded therein and bonded to the sponge material.

Abstract: An apparatus and method for molding articles of manufacture of resinous materials whereby, the surface of the molded article contains a pile-like texture or structure. The pile-like structure is composed of material of the surface stratum of the article and is formed by the adherence of such material to the surface of the mold cavity wall in which the article is molded and by pulling the article away from the mold cavity wall while at least the surface stratum thereof is in a deformable condition such as a semimolten or plastic state resulting from the elevated temperature thereof caused either by the manner in which it is cooled or by applying heat thereto through the mold cavity wall.

Abstract: A method of, and apparatus for, fabricating a bristle support or carrier for a brush, especially a hair brush, having pin-like bristles is disclosed. In a first method step there are produced the rows of bristle pins interconnected with one another at their rear end by means of a web. The individual bristle pin rows are retained in their position after forming the same to accomplish the next method step. In this next or second method step the bristle pins, at the region of their rear end, together with the webs, are cast in the material of the bristle support, so that the bristle pin rows are embedded in the bristle support.

Abstract: This invention relates to a method and equipment for manufacture of target boards for darts or archery, and more particularly a method and equipment with which a target board for darts or archery is made from a tightly pressed circular board. The board is made by joining two semi-circular hemp boards of equal thickness, tightly pressed, with a joining device. The semi-circular hemp boards are obtaind by cutting a tightly pressed, semi-cylindrical hemp bundle into plurality of semi-circular disc like boards of equal thickness. The tightly pressed, semi-cylindrical hemp bundle is formed from a large bunch of suitable hemp fibers with a forming press device directly.

Abstract: This invention relates to a process for the manufacture of brushes particularly tooth-brushes, comprising a bristle-carrying head and possibly a handle in synthetic material fixed to the head.According to this invention, the piles are positioned in a mold by causing them to cross entirely the mold and to project outside of two opposite parts of the mold, the latter having an inner volume or capacity corresponding to at least one brush head and possibly one handle for such a head, a synthetic liquid or pasty synthetic material, such as a prepolymer or a synthetic resin, being then injected into the mold so as to cause the piles to be embedded into said synthetic material and to be surrounded by synthetic material having the shape of at least one head and possibly of at least one handle integral with said head(s).

Abstract: A method and apparatus for molding single stems and buds of greenery in flat form projecting from an elongated strip in one continuous piece, softening and curving the flat piece of spaced stems and buds, and then compressing such piece so that the previous flat sections are curved and repositioned to create conically-shaped interfering buds. The method is carried out by the apparatus disclosed and claimed.

Abstract: A method for increasing the depth of a tack-spun thermoplastic pile on a backing layer comprises space heating the pile side of the product for a time and temperature less than that at which the pile collapses, said temperature being between the glass rubber transition temperature but above ambient and the temperature at which the pile collapses, using a heat source not in contact with the pile, and subsequently cooling the pile to ambient temperature.

Abstract: Method of making fibers suitable for making a hair brush includes a matrix or pad made of a flexible material and a plurality of relatively rigid, single natural-type bristles having their lower ends anchored by flexible, sleevelike members projecting upward from the matrix. Also disclosed is a method of forming the bristles which includes comminuting natural bristles at a low temperature and then forming a thick slurry of the comminuted bristles and a binder, which is then molded and cured to form bristles having improved characteristics.

Abstract: A method of making a pile product comprising a plurality of relatively long, thin face fibers extending from a base by molding a crosslinkable polymeric material. During the formation of the fibers, crosslinking of the polymeric material is initiated by heat activating a substance incorporated in the polymeric material which promotes crosslinking. Crosslinking imparts hot strength to the pile fibers so that the pile product, while still hot, can be removed from the mold without materially deforming the fibers. Consequently, the time it takes to mold the pile product is significantly reduced, thereby increasing productivity and lowering the cost of the product. Moreover energy is conserved because the mold is not continuously cycled between high and low extremes in temperature.

Abstract: A broom having an integrally molded plastic base member comprising a rectangular flange portion including a downwardly-directed circumferential flange portion extending around said elongated flange portion to provide a bristle-receiving opening therein. A plurality of bristles, arranged in a tightly held bundle, are bonded to said base within said opening by the intrusion of said plastic material between the ends of the bristles. A cover member is secured to the boss of the base by a snap-fit arrangement and the skirt of the cover engages the outer edges of the circumferential flange portion.

Abstract: A process is provided for manufacturing a product which has a fibrous surface and is formed by the conversion of a non-fibrous polymer, which process comprises placing a polymer between drawing surfaces which adjoin the polymer and adhere thereto and separating the surfaces. At least one of the surfaces is formed by a carrier for the polymer and for the fibers, through which carrier a fluid is blown such as to flow around the fibers in statu nascendi and orient and stabilize them as their viscosity increases. An apparatus for carrying out said process is also provided.

Abstract: A process is provided for manufacturing a product which has a fibrous surface and is formed by the conversion of a non-fibrous polymer, which process comprises placing a polymer between drawing surfaces which adjoin the polymer and adhere thereto and separating the surfaces. At least one of the surfaces is formed by a carrier for the polymer and for the fibers, through which carrier a fluid is blown such as to flow around the fibers in statu nascendi and orient and stabilize them as their viscosity increases. An apparatus for carrying out said process is also provided.

Abstract: A finished plastic-handled brush is prepared by a single molding step involving gateless molding of the brush back by a tunnel-gating and novel punch-pin finishing apparatus and process which eliminates the usual gate stud, and removing the finished brush back and securing tufts of bristles in the face of the brush back to complete the brush construction.

Abstract: A bristle for use in a railway roadbed broom is disclosed. The bristle is made of an elongate elastomeric core member with two elastomeric skin members bonded around it. Pieces of reinforcing stranded material are used to strengthen the interfaces between the elastomeric members.