Abstract: A self-furring wire lath has stiffening trusses. In a preferred embodiment the lath comprises a grid of intersecting transverse and longitudinal wires welded at their intersections. Stiffening trusses are formed at bent sections in the transverse wires by first longitudinal wires affixed at the shoulders of the bent sections and second longitudinal wires affixed on the bent sections. A barrier layer is disposed between the first and second longitudinal wires. A building paper backing may be affixed to the barrier layer. The lath reduces cracking and wastage of stucco while remaining easy to work with.

Abstract: A safety unit (11) in the form of a network or mesh for location across an opening to receive and restrain an object falling into the opening. The network or mesh is a trellis (12) comprising: a first array (13) of parallel rigid members (13A); a second array (14) of parallel rigid members (14A); and pivoting mechanism whereby each member (13A) of the first array (13) is pivotably attached to at least some of the members (14A) of the second array (14) so that the first and second array can be pivoted relative to one another between a first housed, configuration wherein the difference between the width (W′) of the trellis (12) and the length (L′) of the trellis (12) tends to a maximum; and a second, opened, configuration wherein the difference between the width (W) of the trellis (12) and the length (L) of the trellis (12) tends to a minimum.

Abstract: A reinforcement includes two parallel walls formed with braces arranged along two orthogonal directions, the walls being spaced apart by tie rods. The structure further includes on at least one of its formwork surfaces a permeable structure for retaining aggregate and allowing excess water of cast concrete to escape. According to the invention, at least one of the parallel walls includes two mutually independent grates, one the grates being associated with the other wall by a first set of tie rods, and the other of the grates being associated with the other wall by a second set of tie rods, independent of the first set. When the grates are displaced in opposite directions along an axis parallel to the plane of the grates, the spacing between the walls is modified.

Abstract: The invention relates to the field of building and is applicable to retaining walls. The reinforcing element is characterized in that it consists in connecting the back face of the facing to the strong zone by means of a plurality of reinforcing elements (5) disposed substantially horizontally in superposed planes, and in selecting said elements in such a manner that each of them comprises an anchoring portion that is included in the strong zone and that is constituted by a mesh comprising more than two longitudinal bars, of which only some extend as far as the facing to define a portion that works in traction, which portion has an attachment part for connection to the facing at its end remote from the anchoring portion.

Abstract: A raised floor system which includes a plurality of upright support columns, a plurality of floor panels, and a cable tray support assembly. The cable tray support assembly includes a plurality of support pedestals and a platform section. Each support pedestal has an elongated stringer member, a first upright sleeve member, and a second upright sleeve member. Each first and second sleeve member defines a bore extending from a top end through a bottom end. The stringer member is attached to the sleeve members proximate the respective top ends of the first and second sleeve members so that the elongated stringer member is supported above the respective bottom ends of the first and second sleeve members. At least one of the first and second sleeve members of each first support pedestal is removably connected, in overlying registration, to the body portion of one support column of a pair of support columns. One platform section is suspended from the stringer members of a pair of opposing first support pedestals.

Abstract: A partition panel is constructed of a movable partition wall for use in partitioning a residence space as necessary, the movable partition wall including a pair of latticework structures arranged to face each other with a predetermined spacing therebetween, the latticework structures being coupled to each other. This construction can provide a panel capable of accommodating to changes in layout and the like flexibly.

Abstract: A grille system comprising at least two rod arrangements 1a and at least one clamping member 12. The clamping member 12 retains the rod arrangements b 1a in a predetermined spacial configuration. Each rod arrangement 1a comprises a straight rod 2 having a first end portion 2a provided with an expanded portion 3 received by the clamping member 12. The clamping member 12 comprises two separate, corresponding portions 5 secured together by a bolt 10 and nut 11. The grille system is used as a security grille or in the manufacture of garden furniture or plant supports.

Abstract: A method for reinforcing a structure with a sheet containing reinforcing fiber yarns is disclosed, by which method separation of the sheet is sufficiently prevented, maximum use of the sheet strength is achieved, and existing structures are effectively reinforced. The method includes the step of providing a sheet containing reinforcing fiber yarns over the surface of a structure selected from the group consisting of concrete and steel structures, with a flexible material interposed therebetween, the flexible material having a tensile elongation of 10 to 200% at maximum load at 23° C., and a tensile strength of 0.1 to 50 N/mm2 at 23° C.

Abstract: An apparatus for hiding a door key including a door mat formed of either a plastic material or braided material such as hemp is disclosed. The door mat is rectangularly shaped with raised portions formed on the top surface. Different embodiments are shown with these raised portions forming a decorative border, an esthetically pleasing pattern or a greeting, such as “WELCOME”, as is commonly seen. A hidden compartment sized to receive a typical house key is formed in these raised portions that is accessible through a hook and loop type closure. When the hook and loop type closure is closed, the compartment and its contents remain hidden from view.

Abstract: A wet-formed permeable mat composed of wet use chopped strands (WUCS), chopped roving, and potentially unidirectional roving coupled with an alkaline resistant binder are combined to create an randomly oriented open mat structure with a high degree of openness that can be used in cement backerboard applications. The cement backerboard that is subsequently formed from the wet-formed permeable mat has lower binder content, superior decorative finish, and better permeability control than known glass scrim systems and can be produced in a single continuous step.

Abstract: A self-furring wire lath has stiffening trusses. In a preferred embodiment the lath comprises a grid of intersecting transverse and longitudinal wires welded at their intersections. Stiffening trusses are formed at bent sections in the transverse wires by first longitudinal wires affixed at the shoulders of the bent sections and second longitudinal wires affixed on the bent sections. A barrier layer is disposed between the first and second longitudinal wires. A building paper backing may be affixed to the barrier layer. The lath reduces cracking and wastage of stucco while remaining easy to work with.

Abstract: An adjustable support rack for supporting firestop material in a through-penetration includes a frame sized to fit within the through-penetration, at least one adjustable support member movably connected with the frame for supporting the firestop material, and an adjustable mounting mechanism connected with the frame for securing the frame within the through-penetration. A method of fire stopping the through-penetration using the adjustable support rack is also described.

Abstract: A molded plastic lattice simulates a lattice of separate superposed members. A first set of elongated members lies in one plane, with each of the members having a concave upper surface, a concave lower surface, and a pair of edges interconnecting the upper and lower surfaces. The upper and lower surfaces each have central regions that are intermediate the edges. The central regions of the upper and lower surfaces are separated by a distance less than the thickness of the edges such that each of the members have a bowtie shaped cross-section. A second set of elongated members lies in a second plane, with the second set of members intersecting and interconnecting the first set at junction regions. Each of the members in the second set also has a concave upper surface, a concave lower surface, and a pair of edges interconnecting upper and lower surfaces.

Abstract: A skeletal structure is provided, including a plurality of preferably resiliently flexible rings, each ring passing through and thus being interwoven with immediately adjacent rings, preferably five, so that the rings collectively form a flexible mesh, the flexible mesh being formed into a surface having a double curve substantially defining at least a part of a spherical surface. Each ring is formed from a resiliently flexible linear member having first and second member ends, preferably releasibly interconnected by an overlapping clasp. The spherical surface may be a whole sphere, and may comprise thirty two rings. The spherical surface alternatively may be a hemisphere, which is preferable when the skeletal structure is used as the frame for a building, or the roof of a building such as a domed stadium. The bending of resiliently flexible linear material around to close on itself places the resulting rings into tensile loading, or in tension.

Abstract: Fences and lattices are formed from a single sheet of corrugated-like plastic material comprising a pair of substantially flat sheets spaced apart by spacers that are in parallel and have the same width to form between the flat sheet a series of parallel channels. The fences include a pair of spaced apart cross supports and a series of pickets that intersect the cross supports. The cross supports and pickets all lie in substantially the same plane. The lattices include a plurality of slats intersecting each other at an angle of 90°. These slats all lie in substantially the same plane and the channels are at an angle of 45° with respect to the longitudinal axis of individual slats.

Abstract: This invention provides a panel body that can be easily assembled by using helical wire members having an excellent working factor. The invention provides also a panel body using helical wire members having excellent impact resistance. Wire members having a predetermined outer diameter are wound in a predetermined lead and pitch to provide a large number of helical wire members in such a fashion that a diameter of a helix is about twice the outer diameter of the wire members, crests and troughs have substantially a similar shape, and each trough is positioned outside the center of helix. A first fixing frame has first fixing bars fitted thereto, which first fixing bars are fitted with predetermined gaps to frame members opposing each other with a predetermined gap between them, and engage with the troughs positioned on the side of one of the surfaces of the helical wire members. Second fixing bars are fitted with predetermined gaps between the frame members of a second fixing frame.

Abstract: Disclosed is a geogrid comprising a sheet main body formed with a plurality of through holes through which soil passes; at least one connector protruded from a surface of the sheet main body; and at least one accepter positioned opposite the connector and accepting the connector of another geogrid. With this configuration, the geogrid can be conveniently, carried, maintained and constructed, and is improved in durability.

Abstract: A grill system comprising at least two rod arrangements 1a and at least one clamping member 12. The clamping member 12 retains the rod arrangements 1a in a predetermined spacial configuration. Each rod arrangement 1a comprises a straight rod 2 having a first end portion 2a provided with an expanded portion 3 received by the clamping member 12. The clamping member 12 comprises two separate, corresponding portions 5 secured together by a bolt 10 and nut 11. The grille system is used as a security grille or in the manufacture of garden furniture or plant supports.

Abstract: Apparatus for displaying images on doors especially sectional overhead garage doors comprises a lattice of interconnected horizontal and vertical members removably attached to each horizontal door panel. The horizontal members are looped around the top and bottom of the panel and detachably joined at the back of the panel to form a complete loop. The horizontal members are held by removable attachment to the vertical members on the outer side of the panel using split pin connectors as a means of attachment. The pin connectors may also be used as an attachment point for lighting displays.

Abstract: A tubular main frame (2) for an aeroplane, bridge, or pressure vessel, for example, comprises a honeycomb structure with cells (4) thereof distributed round the periphery of the frame and along the frame, the cells each being at least pentagonal, preferably largely hexagonal.

Abstract: A metal slatted grid comprises independent and identical elongate rectangular slats out of each of which is cut a series of tongues that are bent on the same side as one face of the slat. The free ends of the tongues are conformed so that they can be fixed to an adjacent slat. The tongues terminate in lugs for fixing them permanently into corresponding holes in an adjacent slat.

Abstract: A method for fabricating muntin grid pieces includes steps that attach an outer muntin grid element to an inner muntin grid element to form a two piece muntin grid piece. The outer muntin grid element surrounds at least three sides of the inner muntin grid element and may be held to the outer muntin grid element without connectors such as adhesive. The outer muntin grid element may be a slit tube that is spread open to be positioned over the inner muntin grid element.

Abstract: A one piece molded plastic lattice simulates a lattice of separate superposed members. The lattice includes a set of continuous elongated members that lie in a plane. A second set of discontinuous elongated members intersects and interconnects the first set of members at junction regions. The second set of discontinuous elongated members may lie in another plane. The upper surfaces of the first set of members is transversely concave, or the upper surfaces of the second set of members is longitudinally convex, so that a discontinuity is created at each of the junction regions. In this way, the plastic lattice creates the illusion of being a multi-piece lattice.

Abstract: The present invention refers to stirrups for reinforcement of load bearing structural elements, and in particular for reinforcing concrete load bearing building elements, such as columns, shear walls, beams, slabs, footings, lintels, piles. The invention refers also to a method for reinforcing structural elements as well as to these elements. A stirrup for reinforcing load bearing elements according to the invention consists of a plurality of consecutive windings (7a, 7b) disposed along the longitudinal direction of the stirrup, so that the stirrup has a spiral form, whereby the windings of the stirrup form a plurality of discrete cages (5a, 5b) to house the main reinforcement bars (1a, 1b) of the load bearing element. The stirrups may be used for the reinforcement of load bearing elements of various cross sections such as orthogonal, T-shaped, L-shaped, Z-shaped etc.

Abstract: A one piece molded plastic lattice simulates a lattice of separate superposed members. The lattice includes a set of continuous elongated members that lie in a plane. A second set of discontinuous elongated members intersects and interconnects the first set of members at junction regions. The second set of discontinuous elongated members may lie in another plane. The upper surfaces of the first set of members is transversely concave, or the upper surfaces of the second set of members is longitudinally convex, so that a discontinuity is created at each of the junction regions. In this way, the plastic lattice creates the illusion of being a multi-piece lattice.

Abstract: A reinforcing grid which advantageously includes fibers of both a first type and a second type is provided. The first type of fibers have a strength sufficient to reinforce the hardenable structural material, such as concrete, after hardening. The first type of fibers also have a higher resistance to degradation in the hardenable material than the second type of fibers. As such, the first type of fibers will continue to reinforce the hardened material in the event the fibers of the second type become corroded in the hardened material. Consequently, a less expensive type of fiber can be used as the second type of fiber and can corrode in the hardenable material without concern for the strength of the hardened structural product. According to one embodiment, the first type of fibers comprises carbon fibers and the second type of fibers comprises glass fibers.

Abstract: A combination grille for window, which includes four hollow side frame bars arranged at four sides, and crossed hollow transverse frame bars and hollow longitudinal frame bars arranged within the side frame bars, and a plurality of sliding cover plates respectively covered on the side frame bars and the transverse frame bars, wherein the side frame bars and the transverse frame bars each have a longitudinal opening at one side, two sliding grooves longitudinally extended along two opposite sides of the longitudinal opening; the side frame bars each have a longitudinal series of coupling holes at one side adjacent to the respective longitudinal opening; the transverse frame bars each have a plurality of longitudinally spaced transverse through holes across the respective longitudinal opening for the passing of the longitudinal frame bars; the sliding cover plates are respectively covered on the longitudinal opening at each of the transverse frame bars and the side frame bars, each having two coupling flanges l

Abstract: An exterior wall assembly water management system that includes flashing, a drainable weather-resistive membrane, exterior cladding, a basecoat and an exterior finish. The basecoat and the exterior stucco finish are applied to the outer surface of the exterior cladding, or in the alternative to an insulation layer. The disclosed water managed exterior system efficiently directs any penetrating water to weeps, or the like, by providing a water drainage medium between the weather-resistive membrane and the exterior cladding. The water drainage medium is embossed upon the outer surface of the weather-resistive membrane, creating a drainage space between the membrane and the cladding. The unwanted water drains downwards via the drainage space, is caught at the base of the wall by the flashing, and is further drained outside of the wall cladding.

Abstract: A precast concrete modular device using thin coffered sections reinforced preferably with carbon and/or glass fiber scrim grids, in between steel reinforced ribs is provided. The thin reinforced sections stiffen the steel reinforced precast frame. The thin sections preferably have a thickness less than about two inches, preferably less than about 1½ inch, and more preferably less than about 1 inch. The resultant modules have an areal weight of less than about 40 lbs. per square foot.

Abstract: A device for anchorage to a grating floor. The device includes a lower element the cross-section of which is larger than the width of the openings in the grating in one direction and is narrower in the other direction so that it can pass through the grating after pivoting through 90°, the lower element housing a nut in its lower face and having, on two of its lateral faces, respective housings with toothed regions on their respective upper portions, the toothed regions being complementary with an upper element of a width larger than the openings in the grating and having two legs of a width smaller than the openings in the grating, the legs having respective lower studs which can be introduced into the housings of the lower element, allowing the lower element to pivot, and respective teeth on the inner faces of the said legs for meshing with the teeth adjacent the housings for the studs in the lower element.

Abstract: A grill for an automobile or other vehicle is provided, and includes a plastic mesh like area designed to visually appear like a metallic wire mesh grill. The grill is substantially less costly than a metallic grill, as it is made of polymer-based plastic material.

Abstract: A cladding element is provided with a decorative relief pattern milled into the outer facade of the cladding element, forming a matte having a grid-like interconnective cellular structure. The matte is mechanically fastened to a wall structure as by fasteners extending through a fastening face thereof into the wall and a layer of plaster material is set within the matte's cellular structure. An outer finish coat is applied to complete an outer, wall finish cladding assembly. The interconnective cellular structure is formed of adjacent cells arranged in rows and columns with the cells opening at the outer face of the cladding element. The cells including a first and second set of cells with the first set of cells being tapered to a narrow end adjacent the outer face and a wide end adjacent the fastening face. The second set of cells being tapered to a narrow end adjacent the fastening face and a wide end adjacent the outer face.

Abstract: A decorative roll-patterned metal strip or sheet, preferably aluminium strip or sheet, having: a thickness of about 0.05-1.0 mm, preferably about 0.1-0.8 mm, with a surface having a plurality of indentations of a depth of about 0.001-0.05 mm, preferably about 0.02-0.035 mm, and optionally having a layer of a paint of a thickness of about 3-30 microns, preferably about 10-15 microns, on the surface and within its indentations, the ratio of the depth of the indentations to the thickness of the strip or sheet being in the range of about 1:5 to about 1:100. A process is provided for making the decorative roll-patterned metal strip.

Abstract: A grid structure capable of withstanding a compressive force comprises a peripheral frame, a plurality of first grid members connected to and extending within the peripheral frame and a plurality of second grid members connected to and extending within the peripheral frame. The second grid members intersect the first grid members. The first and second grid members form a grid of small frames disposed within the peripheral frame. The grid has an upper surface and a lower surface wherein a first group of at least a portion of at least one of the first and second grid members have flanges on the upper surface, the flanges being generally perpendicular to the first and second grid members and a second group of at least a portion of at least one of the first and second grid members have flanges on the lower surface, the flanges being generally perpendicular to the first and second grid members. A process of making the grid structure is also disclosed, as is an assembly of such grid structures.

Abstract: A gutter screen for preventing the accumulation of debris within a gutter is disclosed. The gutter screen has a plurality of ribs positioned to run transversely across the gutter. Each rib has a rounded first top section, the first top section having a top surface emanating circumferentially about the first top section, a V-shaped first bottom section, a first end, and a second end. The gutter screen also has a plurality of bars positioned to ran above and generally parallel to the gutter. The bars have a rounded second top section and a V-shaped second bottom section. The second top section of each bar is attached to and interconnects the first bottom sections of each rib, the ribs and the bars defining a plurality of gutter screen apertures. A roof flange for attaching the gutter screen underneath a roof shingle extends from the first end of each rib. The roof flange has a roof flange surface which is flush with the top surface of the rib.

Abstract: A removable liner that is positioned on the inside walls of a freezer or freezer compartment. The liner is made of a mesh material of low thermal conductivity and is thick enough so that the skin of an individual using the freezer cannot touch the wall of the freezer. The mesh has openings in it to allow air to circulate through it and therefore not adversely affect the efficiency of the freezer.

Abstract: The invention resides in a method of providing a barrier in an environment comprising the steps of providing a structural member which is part of the environment; providing a flexible foam coated fine mesh material capable of being folded on itself and providing said mesh material with a means for securing said mesh material to a structural member in said environment and securing said mesh material through said means to said structural member to provide a barrier between one environment and another.

Abstract: Rear-ventilated cladding is provided with intumescent compositions in the region of the rear ventilation.

Abstract: A security door for a gate or building opening is formed of a metal frame that defines a pair of hollow stile frame members and upper and lower hollow transverse rail frame members. Each of the frame members has an inner face with an attachment flange projecting therefrom. Security receiving apertures are defined in the inner faces of the frame members. In the fabrication of the door a plurality of metal security bars are positioned relative to the hollow frame member so that the ends of the security bars project through the security bar receiving apertures and into the hollow frame members. The security bars pass over and reside in contact with the attachment flanges. The security bars are spot welded to the attachment flanges so as to permanently secure them to the door frame. Also, the frame itself is preferably formed from a single, elongated strip of metal that is roll formed and then bent at mitered corner cuts to create and delineate the stile and rail members.

Abstract: A framework type building panel, having opposed first and second sides, is formed of a plurality of primary and secondary structural members each of which has a web and a flange providing the member with a T-shaped cross-sectional shape; each member also has a series of transverse notches spaced along its web. The panel includes a first series the primary members which are spaced apart and parallel to each other with their flanges defining the first side of the panel, and a second series of the secondary members which are spaced apart and parallel to each other and extend transversely to the primary members and have their flanges defining the second side of the panel, with the webs of the primary members having their transverse notches of their webs engaging areas of opposed webs of the secondary members. The edges of the panel may also be formed by the primary or secondary members, rotated 90.degree. about their axes, so that their webs extend inwardly and engage the ends of the other panel members.

Abstract: A supporting element for lattice structures comprises at least one channel shaped structural section including an endwall flanked by obliquely oriented adjoining wings. Regularly longitudinally spaced securement notches are provided for securing lattice or wire cable trays the supporting element. The notches comprise longitudinally extending cutouts in each of the wings. The cutouts are defined by longitudinal and lateral edges in the wings. Regularly spaced lands extend between successive notches. Tongues longitudinally extend from the lands and partly overlying the notches. Gaps are defined between free edges of the tongues and adjacent lands. The tongues are bendable from a position generally in alignment with associated lands to a deformed position extending into the notches for restraining a section of the components between an underface of the tongues and the edges in the wings.

Abstract: A vinyl gate structure includes a frame which has spaced-apart upright members and top and bottom cross-piece members extending there between. Each upright member includes a cross-piece receiver for the cross-piece members. Vinyl cross-piece covers, or cross-piece members, are provided, and vinyl web members generally extend between the cross-piece covers to provide a web for the fence. A typical fence is held together with four fasteners, located in the corners thereof, which fasteners secure the upright members, the cross-piece members and the vinyl cross-piece covers, thereby forming a solitary unit.

Abstract: An improved drain board for use on a gutter particularly has a cover board pivotally secured to a mounting bracket. The cover board has an outwardly extended pivot pole at one corner thereof and an inwardly extended receiving tube at the opposite corner for accommodation of a bias spring and a movable pivot rod. At the corresponding corners of the mounting bracket is disposed an outwardly extended engaging tube respectively so as to permit the fixed pivot pole and the movable pivot rod of the cover borad to be pivotally mounted onto the mounting bracket and the cover board is well protected from being stolen with ease by burglars.

Abstract: A raised flooring system and methods of forming components of such a system are disclosed. The present flooring system utilizes thin sheet metal, typically galvanized steel, to form a first strip having a plurality of pedestals formed in a spaced apart relation on the strip and connected via wings extending from the first strip to wings extending from a second strip, thereby forming an overall rectilinear, grid-like pattern of pedestals. The pedestals are used to maintain floor panels above a network of channels in which conduit, cables, hoses, pipe and other materials can be routed. The pedestals are punched and formed from strips of sheet metal and have an overall shape generally that of a tower supported by two legs that may have rounded edges for increased load-bearing capacity. The wings that are designed to interlock with corresponding wings from another strip may also be formed from the pedestal-bearing strips.

Abstract: A plank and flange plate structure for providing additional bearing for the precast concrete planks on an underlying steel beam, the additional bearing being located on each side of the existing steel beam so as also to provide a transfer of the dead and live loads to the existing steel beam. Several embodiments include a square structure, made up of a pair of flange plates which rest on the steel beam, and a pair of plank plates supporting the precast concrete plank(s), and several structures located between adjacent steel beams, with two or three plank plates. Plank and flange plates may be secured together by welding, nut and bolt fasteners, riveting, or the parts may be formed (e.g., cast, molded, etc.) as a unitary structure.

Abstract: A grille-type guard system, in particular a wrought iron grating assembly, includes a plurality of longitudinal bars in spaced-apart disposition, and a plurality of crossbars which are connected to the longitudinal bars at crossing points. The crossbars are formed at each crossing point with an arched section for receiving the longitudinal bars at least partially in a form-fitting manner, with the securement between the crossbars and the longitudinal bars being effected in each crossing point in non-detachable manner by a screw fastener that is received in aligned bores of the longitudinal bar and crossbar.

Abstract: A frame structure including at least one base rod; a plurality of struts respectively fastened to the at least one base rod; a plurality of shear members respectively fastened to the at least one base rod; and a plurality of horizontal connecting hooks, each having a first end fixedly connected to the at least one base rod and a second end terminating in a hooked portion. By connecting the connecting hooks of one frame structure to the connecting hooks of another, a plurality of frame structures are connected together to form a framework for a reinforced concrete floor.

Abstract: A modular flooring system for stables is made up of a plurality of modules that each include a frame element (1) and an insertion element (30). Each frame element (1) is equipped with supporting profiles (6,7) intended for the support of the insertion element (30), which is placed in the frame element when in use. The insertion elements can be easily replaced in accordance with the type of animals expected to be walking thereon.

Abstract: A metal wall stud in the shape of an elongated open channel having pre-punched nail or screw holes and pre-punched passageways for electrical or plumbing facilities. Integral tabs extending beyond the ends of stud walls are foldable to provide connections to wooden plates or metal wall stud purlins in the construction framing. Split tabs integral with the bottom wall of the channel provide lateral stabilization, greater uplift loads, and the capability of being load bearing. A pair of studs have nesting capability to provide telescopic adjustability for walls in a vaulted ceiling room.

Abstract: A latticework structure providing a composite curved appearance is formed from slat elements each having a shape defined by a waveform curve repeating about a longitudinal axis, the waveform defined by a wavelength and a magnitude, each of the first slat elements having a substantially constant and common width orthogonal to the defining curve. Such elements are arranged in two levels with axes of symmetry of the slat elements all parallel, and the width of slat elements in one level at maxima points positioned to overlap the width of minima points of the slat elements on the other level, and the elements are joined at the areas of overlap. In a preferred embodiment, the elements are wooden slats, and in other embodiments other materials are used, such as plastic and metal. Joining methods are selected appropriate to the materials used.