Abstract: The reinforcement comprises two layers of netting A1 and A2 formed by lengthwise oriented parallel wires (12a, 12b, . . . 13a, 13b, . . . ) and by crosswise oriented wires 8a, 8b, . . . 9a, 9b, . . . 10a, 10b, . . . 11a, 11b, . . . ); the meshes they form are square or rectangular in shape. Lengths of spacing wire (1, 2, 3) having the shape of zig-zags are connected obliquely to the two layers of netting. The spacing wires (1, 2, 3) are welded to the lengthwise oriented wires (12b, 12c, . . . 13b, 13c . . . ) and to the crosswise oriented wires (8a, 8b . . . 10a, 10b, . . . ) at their crossings.

Abstract: The dimensionally stable composite material consists of a double fabric with spacer filaments. On both sides of the double fabric there is a plastics layers. Face and back fabric of the double fabric are linked with each other by means of incorporated rigid filaments which prevent the double fabric to be squeezed. The exterior plastics layers are curable laminates. FIG. 1 shows such a composite material.The material is obtained by applying fiber mats impregnated with curable synthetic resins to both sides of the double fabric containing spacer filaments, and subsequently bonding fiber mats and double fabric by compression.

Abstract: A method of joining together two composite honeycomb panels each having internal cellular structure wherein related bores are formed in the respective panels with at least one of said bores extending entirely through its panel, the panels are placed in tightly abutting relation with the bores in alignment, a hollow tubular fastener is inserted through the one bore to project into and along the aligned bores, and fluent anchoring glue type adhesive is forced into the fastener so that some of the adhesive extrudes from within the fastener through side apertures to randomly occupy adjacent space in the cellular structures of both panels, and the anchoring adhesive is hardened in situ; and the resultant coupled panel assembly.

Abstract: The track belt assembly of the present invention comprises a plurality of shoes spaced about the periphery of a load-supporting structure. A reinforcing belt structure is disposed on the side of the shoe opposite the ground-engaging side thereof. Each shoe is secured at its lateral ends to the belt reinforcing structure by two separate anchor plates disposed on the side of the belt opposite that which is adjacent the shoes.

Abstract: A mechanical method of case bonding a solid propellant to a rocket motor e wherein a coating of a liner material is first applied to the internal surface of a rocket motor case. While the liner material is uncured a mechanical structural material selected from wire grid, wire hooks, rubber spikes, steel wool, metal grid, polyamide material, or polypropylene material is embedded in the liner material but allowed to protrude above the liner material. The liner material is allowed to cure, and an uncured propellant composition is cast against the cured liner and allowed to flow around the protruding mechanical structural material. On curing, the propellant composition attaches itself to both the liner and the mechanical structural material. The combination of the liner material, the mechanical reinforcing material, and the propellant composition provides a mechanical reinforcement in the propellant which is held in place with improved tensile adhesion against the rocket motor case wall.

Abstract: A method of lining an interior surface of a furnace with roll-type insulation by attaching a plurality of hooks onto the interior surface to be lined, folding back portions of the roll-type insulation on themselves to create folds in the roll-type insulation, and pressing the folds onto the hooks to thereby attach the roll-type insulation to the interior surface. Each of the plurality of hooks includes a hook member for passage through portions of the roll-type insulation. Each hook member is fixedly attached to the interior surface of the furnace either by being welded directly thereto when the interior surface of the furnace is metal or by being fixedly attached to a plate member which is in turn bolted, riveted, or otherwise fixedly attached to the interior surface of the furnace. The hook member includes a leg portion having a pointed first end for passage through the roll-type insulation and having a second end.

Abstract: A retainer assembly for and method of securing a molding strip to an exterior automobile panel which includes a body engaged with the molding strip and having a surface which confronts the automobile panel. A double surface adhesive sheet is on part of the body surface and a liquid bonding agent on another part. The adhesive sheet holds the molding strip on the automobile panel while the liquid bonding agent solidifies. Thereafter, both the adhesive sheet and the bonding agent hold the molding strip in place.

Abstract: The process provides practical manufacture of a two-piece, dielectric filled, ferrite toroid assembly while providing optimum electromagnetic characteristics presently not consistently available by manufacturing the toroid in a pressed one-piece configuration. A pair of complementary ferrite blanks of selected shapes are machined to dimension, and the mating surfaces thereof are selectively lapped. The complementary ferrite parts are then permanently assembled about a pre-machined dielectric insert, and the composite toroid is secured together by a selected adhesive selectively disposed therein.

Abstract: A novel low bulk seam is disclosed for use in paper making machine fabrics, such as dryer felts. The seam is particularly adapted for use with multi-filament yarns which comprise multi-ply fabrics. A novel method for producing this seam is disclosed which comprises the insertion and adhesion of a seaming coil, the removal of picks in adjacent fabric areas, the folding and overlapping of such areas, the creation of a warp fringe, and the pulling of portions of that fringe into and through portions of the fabric body fasteners to create a stitchless seam providing substantially uniform thickness and air permeability across the full fabric width. A durable, reliable, non-marking seam is accordingly provided for use with spun, mono-filament and/or multi-filament fabrics.

Abstract: Thread locking compositions and analogous sealant materials having limited cured strength, and a preferred method for their compounding and application, are disclosed. These are based primarily on alpha cyanoacrylates, i.e. acrylate esters in monomer or low polymeric form, or of very low molecular weight, which are rapidly polymerizable to form solid and bonding films. The materials, in liquid form, are modified by inclusion of coloring agents and other film strength and reaction rate modifiers, to impart optimum properties of bonding strength, curing rate, moderate resistance in torque to separation of the bonded parts, low residual torque, along with good stability in storage, or good shelf life. Combinations of polymerization promoters and stabilizers are included, along with small quantities of specially selected coloring agents which not only impart effective color to thin films of the composition but serve to limit curing below high cured strength.

Abstract: A method for making a unitized, ready-to-install, mobile home ceiling structure is disclosed. The method comprises the steps of arranging a plurality of rectangular panels on a tunnel jig. A roof frame structure is then positioned and fastened on the back face surfaces of the panels by means of fasteners and adhesive along the bottom chords of intermediate roof frame truss members. The method additionally includes the step of fastening roof frame perimeter side edge rails and outer truss members to the panel arrangement perimeter by means of fasteners driven upwardly through the front face surface of the panels to extend through the panels and penetrate the side edges rails and outer truss members. The method includes the step of transporting the mobile home ceiling structure from the tunnel jig in ready-to-install condition wherein the setup time of the adhesive material does not restrict moving the unit.

Abstract: A laminated composite comprising a web of heat-resistant base material having a sufficient structural strength and a web of tiny mica flakes laid on said web of base material by multilayer-paper making. This composite can be manufactured with good operational efficiency, is improved in mica retention and is excellent in varnish-impregnability, heat-resistance, mechanical strengths and electric insulation.

Abstract: The ends of the web are provided with curved connecting members which are formed by longitudinal filaments which are of greater cross-section than the remaining filaments of the web. These larger sized longitudinal filaments are inserted into the end portions of the web ends in place of the usual longitudinal filaments. The overlapping portions of the layers of the fabric web are provided with zones free of transverse filaments and the layers are secured together in the zones by a manually inserted transverse filament.

Abstract: A laminated pack comprises a plurality of uniform, closely adjacent superposed sheets and a mechanical interconnection for said sheets holding them together which comprises the pinching of a portion of the sheets themselves against one another. The interconnection is effected by slitting the sheets in areas to form teeth on each side of a hole formed through the sheet or along an edge of the sheet and by subsequently deflecting the teeth in a stacked set of sheets so that adjacent ones of the teeth move into recesses vacated by similarly deflected teeth of the next adjacent sheet and fit into the area with a pinching interengagement. The pack is formed by feeding prestamped sheets along a feed path and separating and stacking individual sheets therefrom in a direction perpendicular to the advance direction of the strip and also pinching the sheet so that teeth formations of superposed sheets bear into the next adjacent sheet to hold them together.

Abstract: The method consists in realizing densified layers of fibers, in forming a stack with said layers of fibers provided with holes and so arranged that the fibers of the layers extend within the stack in at least two directions designated as first and second directions which define the plane of the layers and that the holes form passages within the stack in a third direction, in implanting in said passages fibers which extend in the third direction, and in increasing the density of the assembly, for example by filling the gaps of the structure with a resin or a carbon matrix.

Abstract: Papermachine clothing, for instance, a loop of imprinting fabric, is disclosed which is so woven that a top-surface-plane thereof is defined by coplanar crossovers of filaments of at least two sets of filaments (i.e., warp and shute filaments) and so that sub-top-surface crossovers are distributed in a predetermined pattern throughout the clothing. Specific weaves are disclosed wherein the top-surface crossovers act corporately to define a top surface comprising a bilaterally staggered array of wicker-basket-like cavities which cavities each span at least one sub-top-surface crossover. Such clothing is particularly useful for making soft, absorbent paper of relatively low density, and relatively isotropic stretch properties when creped.

Abstract: The invention relates to a heat-insulating slab formed by a plurality of continuous strips maintained in assembly side by side, each strip comprising entangled refractory fibres the major portion of which is perpendicular to the two main faces of the slab, the strips being maintained in assembly exclusively by means of a plurality of lines, ribbons or cords of an organic synthetic matter which adhere to the strips and are applied to the two main faces of the slab perpendicular to the strips. This slab is useful for insulating the inner surfaces of furnaces.

Abstract: A service cloth having on its top side patches of hook fiber cloth, and bags containing weight material, each of the bags having on one side thereof a patch of hook fiber cloth, the hook fibers of the patches on the bags being pressed into intermeshing and interlocking engagement with the fibers of the patches on the top of the service cloth, the hook fibers being yieldable and resilient to permit such engagement and to permit disengagement upon the application of sufficient force. Also the provision of a flap portion of the service cloth which is foldable over the body of the cloth and attachable, in the same manner, to provide a pocket.

Abstract: Fibrous substrates intended for the production of composite bodies are produced from sheet material consisting of fibrous filaments or threads bound into a coherent sheet with a binder by providing fine, substantially uniformly sized and distributed perforations in at least selected areas of the coherent sheet, subdividing the perforated sheet into a plurality of substantially identical smaller flat sheets each comprising at least one of said selected areas, stacking the smaller sheets one upon another so that in the resulting stack the perforations in one sheet overlie the perforations in the immediately underlying sheet and thus form passages through the stack and thereafter threading through said passages in said stack strands or rods formed from fibrous filaments or threads which have been bound together with a binder.

Abstract: A door mat formed of a flexible, waterproof material comprising a lower section and an upper section hingedly connected to the lower section at one end thereof. In this manner, the upper section may be lifted from the lower section for the placement between the sections of a newspaper or other article. The upper section may then be lowered to cover, protect and retain the newspaper or other article between it and the lower section.

Abstract: A multilayer steel-reinforced concrete panel assembly comprises a steel-reinforced concrete outer plate, a steel-reinforced concrete inner plate and a layer of insulation sandwiched between these plates. The outer plate and the inner plate are interconnected by flat anchors traversing the intermediate insulation layer and the anchors are distributed along an imaginary circle whose diameter is greater than the length of the small side of the rectangular panels. At least three such flat anchors are provided, two of which are capable of absorbing all of the stresses while all of the flat anchors are disposed symmetrically with respect to the longitudinal plan axis of the panel. The flat anchors take up all of the stresses to which the panel may be subject and thus eliminate the need for an additional anchor at the centroid of the panel, i.e. the center of stress forces and the like.

Abstract: Plastic seals for use in valves which handle chemically reactive and aggressive media are described. These seals have a base layer made from porous PTFE and a covering layer of smooth, dense PTFE. The two layers are suitably sintered together. The seal is held in a seal holder which may be injection molded around the seal and may be made from a similar material. During the production of the base layer, the PTFE material is mixed with a flushable filler material which leaves a structure of pores in the layer after removal. These pores impart to the base layer an elastic property.A method for joining the seal to the seal carrier and a method for forming annular seals are also described.

Abstract: The invention relates to a method for assembling together two parts of headlights or lights for automobile vehicles, the first of said parts being made of an inorganic material and the second of a thermoplastics material not able to be directly fixed to the first by adhesion, wherein a connection element is partially introduced into the second thermoplastics part so that a part of said element projects and acts as free anchoring element, and the two parts are then assembled together by the depositing of a layer of glue which, on the one hand, adheres to the first part and, on the other hand, completely covers the said free anchoring element.

Abstract: A no creep dust collection mat having a laminated rubber backing which has a plurality of spaced sections of hook accommodating material projecting therethrough to accommodate an attaching member which secures the mat in a relatively fixed position on a carpeted floor.

Abstract: A diffusion transfer color photographic film unit, (a) which contains:1. a light-sensitive element comprising a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a dye image-forming material which, as a result of development, forms an imagewise distribution of a dye image-forming material capable of diffusing through a processing solution;2. an image-receiving element comprising a transparent support having thereon an image-receiving layer for receiving the dye image-forming material upon diffusion;3. a light-intercepting element having substantially the same area as the image-receiving element and being capable of protecting an emulsion layer or layers from external light during processing of the film unit in a bright place out of a camera;4.

Abstract: Alkaline batteries are described in which a special electrode is incorporated in the positive electrode in order to give added protection against electrochemical damage due to battery reversal. This special electrode contains a hydrogen-absorbing material which also acts as a hydrogen electrode for the conversion of hydrogen ions into elemental hydrogen. Such alkaline batteries are particularly well protected against hydrogen overpressure due to battery reversal with only a small penalty in energy density. Particularly suitable for this application is the use of a hydrogen-absorbing material with nominal formula LnM.sub.5 in which Ln represents a lanthanide metal and M is either cobalt or nickel.

Abstract: A composite structure having isotropic strength properties and comprising a three-dimensional network of reinforcing yarns embedded in a body. The yarns are arranged in a plurality of groups, each group comprising a plurality of yarns arranged parallel with one another. The yarns of at least three of the groups are arranged so that the yarns of each of the three are directed in a mutually orthogonal direction with respect to the other two. At least one other group (or groups of yarns) is directed diagonally to the yarns of at least two of the three mutually orthogonal groups.

Abstract: An elongated wrapper which is initially flexible and which, when wrapped around one or more bodies, is adapted to be stretched and assume a substantially rigid condition. The wrapper has an outer, elongated, tubular, elastic envelope assembly which is of a generally flat cross section and which is adapted to surround one or more bodies while being longitudinally stretched and wrapped around the bodies. This envelope assembly has an inner surface carrying one of a pair of materials which, when they combine, react to assume a hardened condition. The other of these materials is situated in the interior of the envelope assembly and is separated from the one of the pair of materials by a separating layer structure which is located in the envelope assembly between the pair of materials separating them from each other to prevent them from combining.