Abstract: Disclosed is a method of construction of a wall (40) from first, second and end modules (10, 20, 30) each forming part of the wall. The method includes assembly of two modules being first, end or first and end modules (10, 30) having portions forming part of the wall (40) by aligning these modules (10) in a desired alignment and connecting them together with connection means (50) to form a supporting structure (200) for second modules (20). The connection means (50) has a tie portion (51) generally extending in the direction of the alignment. The tie portion (51) has a portion corresponding with connection portions (26) of a second module (20) and cooperation of the corresponding tie portion (58), extending between guides (56) formed as part of the tie portion (51), with the connection portions (26) connects the second module (20) to the supporting structure (200). In such manner, a portion of a wall (40) may be constructed.

Abstract: A block pad for being disposed between courses of blocks in a segmental retaining wall, the block pad having frictional properties for transferring tensile load from a soil reinforcing geosynthetic to the wall. The block pad further providing cushioning between block courses to minimize block cracking from bearing loads and wall settlement.

Abstract: A system for interconnecting construction panels suitable for modular construction has a hybrid connector, a receptor connector and locking connector. The hybrid connector is inserted into the aperture of the receptor connector which limit the displacement relative to each other. The locking connector is inserted into the aperture of the hybrid connector to interlock the three connectors. A panel connector can have an extension tab to provide additional locking action. Panel connectors can have stiffening portions that fill spaces between the connectors to reduce the need to insulate the interconnection and assist in repelling foreign matter entry. A method for interconnecting construction panels includes mating the hybrid connector and the receptor connector and then mating the locking connector from either side of the receptor connector.

Abstract: A parquet board with a groove and tongue edge profile comprising a projecting tongue (14) on at least one edge of each parquet board (10,12) and a receding groove (16) on at least one opposite edge of the parquet board. The top edge of the tongue (14) is provided with a projecting locking lip (24) running in the longitudinal direction of the tongue, and there is a corresponding locking recess (26) running in the longitudinal direction of the groove in the bottom edge of the groove-boundary-forming top groove cheek (28).

Abstract: A number of generally tri-lateral truss components or modules are interconnected with truss fasteners to construct a modular truss. Each tri-lateral member has three elongated chords, which may include first and second side chords and a base chord. Each chord has two opposing ends. A first end of the first chord is connected with a second end of the second chord, while a first end of the second chord is connected with a second end of the third chord, and a first end of the third chord is connected with a second end of the first chord. The three chords thereby define a generally tri-lateral member. A parallel chord truss may be built up of tri-lateral truss components by arranging a series of truss components in alternating upright and upside down orientations with adjacent side chords abutting one another. That is, a first truss component may be oriented in a first, upright position, while adjacent truss components are placed in an inverted, second, or upside down orientation.

Abstract: A converted wood article for use in combination with other converted wood articles to form composite wood products for use in general construction such as in the construction of posts, flooring, walls and support beams.

Abstract: A mason wall cementitious building block system comprising two lightweight dry-stackable block units and methods of using such units, including a wall unit and a corner/end unit, connected one to another in an interlocking fashion by means of male posts and female sockets, and variants on each of said units for capping the uppermost course of an assembled wall. The male posts angle rearwardly to define partial apertures, such that adjoining blocks define an aperture which extends vertically between the adjoined blocks for placement of vertical reinforcement, electrical and plumbing chase, and for the introduction of mortar or cement. The top surface defines a recessed cavity for placement of rebar when stacked. The corner/end unit of the present invention interconnects with wall units also by means of posts and sockets and may function as either an end or a corner, requiring only the removal of a small portion of the block at prescored cut lines to alter functions.

Abstract: A durable, modular, adaptive containment system, which has a composite composition comprised of wood fibers embedded in a polymeric matrix, the system being suitable for holding soil and plants, and which is comprised of rails, preferably of rectangular cross-section, each of said rails being joined by means of a T-shaped tenon along one of its ends and a complementary T-shaped channel on the side of the rail near its other end, or which is comprised of a connector having T-shaped channels so that when four rails, each of which has a T-shaped tenon on each end, pairs of which are of equal length, are joined by inserting the T-shaped tenons of each rail into a complementary T-shaped channel on a connector, a rectangular containment system is formed.

Abstract: Structural elements for the production of self-supporting structures are composed of a composition containing mineral and organic components and molded in modular structural shapes including a cube of side length L having vertical and horizontal holes traversed by threaded rods, a fork-shaped element, a Z-shaped element and a lintel element with projections of a width equal to L/3. The entire structure is held together by interfitting the projections and gaps between projections and with the threaded rods.

Abstract: An anti-sliding bar for furnace wall constructions of the type comprising: an open support structure wall and mat means of fibrous insulating material, including U,S,C or the like shaped sections interleaved to each other; anchoring means between the interleaved U,S,C or the like shaped sections, and tying means passing through the mat means, to hold the anchoring means attaching the mat means to the open support structure wall; the anti-sliding bar comprising: a rod supporting the mats, extending horizontally between the U, S,C or the like shaped sections, having: anti-sliding means, fastening tying means for supporting the bar to the mesh means.

Abstract: A concrete block is provided having half dovetail sections at opposite ends of the block arranged so that when placed together the dovetailed sections on adjoining blocks form a full dovetailed section which is just large enough to be received within a dovetail groove in the central portion of an adjacent identical block. The concrete blocks are provided with upper and lower longitudinal grooves for longitudinal members having the same exterior shape. In one form of the invention one side of the block may be made into a plant receptacle by providing a hollowed out section oriented upwardly. Insulating concrete blocks may also be combined with blocks formed of structural concrete to provide an interlocked wall having a portion of the wall made from insulated concrete material and another portion of the wall made from structural concrete material.

Abstract: This invention includes repair of an existing underground sump without the need for costly and time consuming excavation. A plurality of liner-forming pieces are placed inside the underground sump to create a liner preferably substantially conforming to the interior dimensions of the sump. The pieces are joined together to form a unitary containment shell by first taping and then using fiberglass cloth and fiberglass resin. A layer of gel-coat is applied to the surface of the shell to create a fluidtight containment chamber within the sump. Some of the liner-forming pieces can have openings formed therein to accommodate the pipe entries corresponding to those in the sump.

Abstract: A precast concrete block having a first single thickness generally planar face section and a second single thickness generally planar backing section integrally formed with and extending from the first section to form a structure of a T-shaped configuration. A groove extends across and opens through an upper edge of the second planar section for the receipt of a rebar. The blocks are assembled into stacked side-by-side relationship and a panel is formed by casting concrete against the side of the generally planar face sections from which the backing sections extend. Rebar extends across and through the grooves of at least certain of the blocks to maintain the blocks in aligned side-by-side relationship and reinforce the concrete cast against the blocks. The panels are used in the construction of retaining walls for earthen formations and may be precast or formed in place at the situs of the formations.

Abstract: A roof construction with a number of roof elements coupled together to form an up and down, essentially corrugated construction. The connection point of the roof elements is in the region of the neutral line. In this way particularly large spans can be achieved without special measures.

Abstract: A beam is composed of a tree trunk which has been star-mortised into right triangular sections which are joined together in pairs to produce rectanguloid laminae that are, in turn, glued together to form a beam in which growth rings of the tree trunk are oriented vertically and in the longitudinal direction of the beam. Due to the resulting more favorable growth ring position, the beam according to the invention can be much more highly statically loaded than a conventional beam, and moreover, can be produced at much lower costs than known glued wood truss beams formed of solid, one-piece rectanguloid tree trunk sections.

Abstract: A long-lasting base for supporting a structural post for a shelter-type structure for use principally on a farm. The base is made of an impervious material to avoid any rotting or deterioration which might result from moisture in the ground, and is formed to receive laminated posts as part of the structure.

Abstract: A roofing system that provides a safe, long lasting, leak-free and maintenance-free insulated roof for flat roof applications. More particularly, a sandwich panel comprises an inner foam core, a fiberglass skin fully encapsulating and surrounding the core, and a gel coating surrounding the skin. The panel has two substantially parallel surfaces and a peripheral edge having a step edge. A plurality of panels having two different shapes and relative dimensions are alternately secured to purlins to form the roofing system so that half of the panels can be easily removed without affecting the rest of the roof.

Abstract: An installation jig and method for installing the spout casting that eliminates the need for using a thick layer of refractory as previously done. The installation jig is formed from a threaded rod with a rectangular plate transversely fixed to one end of the rod and a second shorter, rectangular plate received on the rod at a distance from the fixed plate. A locking collar is received on the rod adjacent the shorter plate on the side remote from the fixed plate. The larger fixed plate is inserted into the boiler from the outside and is caused to bear against the tube surface. The smaller plate and locking collar are used to hold the casting in place until the casting is fixed in position by the installation of the spout.

Abstract: The invention concerns a timber element and a procedure for manufacturing such a timber element. The timber element (14b) is composed of at least two heavy wooden blanks (2) fitted one upon the other and glued to each other by their substantially horizontal faces. As taught by the invention, each wooden blank (2) is provided on at least on horizontal face with a guiding recess (6; 6a, 6b) longitudinal to the wooden blank and vertical, for guiding the crackling to occur vertically.

Abstract: A lightweight, hollow building block is disclosed. The building block preferably has a rectangular base and an open pentagonal top. Two adjacent sides of the block form right angles with the base and the top. The three remaining adjacent sides are inclined outwardly from the base at an angle which permits the blocks to be stacked one inside another. When four such blocks are arranged in a double-wide and double-long pattern, they form a rectangular, vertical sided building unit. A building is constructed from the blocks by laying a course at the time and preferably filling the open, upturned blocks in each course with some locally available filler material to lend weight and stability to the structure.

Abstract: A prefabricated adaptable lightweight hollow core construction system comprising at least a unit (30) which may be extruded of plastic and which comprises a plurality of compression-resistant, flexibly connected, elongated, hollow element pairs (40). Each pair comprises a triangular base element protruding from one side of a flat flexible sheet and an octagonal head element flexibly connected to the uppermost angle of the base element. Element pairs have undersized spaces (42) between them adapted to receive elements in interlocking engagement. Adjacent head elements (36) may be manually swung apart on flexible connections (38) and forced into adjacent undersized negative spaces (42) to subsequently form rigid right-angle corners at incremental points (34a) or other shapes formed (41, 32a, 34c, 34d, 34e) along the unit. Elements of a second unit (30a) may be alternately and sequentially interlocked with those remaining elements of the first unit that are not engaged in corner formation.

Abstract: An extruded, modular panel unit, made of at least two sheet-like major surfaces inter-connected and spaced apart by a plurality of ribs dividing the space delimited by the major surfaces into a plurality of subspaces, and at least two pairs of spaced-apart, ridge-like joining projections extending in direction of extrusion, the two pairs of projections being located at one edge of the panel units. The joining projections rise from an outside face of one and the same major surface and point in the same direction, and in assembly the outside surfaces of the outer projections of the pairs of projections are in substantially direct contact with similar surfaces of coplanarly adjacent panels.

Abstract: A building panel module incorporating spaced inner and outer wall surfaces of metallic sheet construction to provide both longitudinal and transverse load carrying capabilities. The module includes interior baffles that are positioned between the inner and outer wall surfaces and that overlap each other to prevent direct pathways between the inner and outer wall surfaces so that ballistic projectiles that penetrate one wall surface must also pass through the baffles before impacting the other wall surfaces, thereby reducing their energy level to such an extent that they do not penetrate the innermost wall surface. Additionally, the module incorporates one or more integral I-beam elements that provide substantial longitudinal load carrying capacity, as well as providing resistance to transversely applied loads, such as wind loads, blast loads, and the like.

Abstract: The invention relates to the construction of a self-supporting body of cellular structure, great rigidity, and capable of withstanding stresses exerting in all directions, either separately or together, of withstanding impacts, pressure, shock waves, acoustical and thermal phenomena, and using free volumes as assemblies having different characteristics or as shock absorbing means. The invention also provides the possibility of varying the weight of said body by being filled with various fluids which may be static or flowing, which may be at various different pressures, and which may contain specialized agents on a permanent basis or which may be put into action under certain constraints of pressure, temperature, etc.

Abstract: A building system for the construction of walls, floors, roofs, paths and roads employs prefabricated blocks having compound shapes which are such that at least a majority thereof each exhibit projections or recesses arranged to co-operate interkeyingly with the projections or rcesses of other blocks of the system, whereby the blocks can be assembled without the essential use of mortar or other intervening binding material. The blocks may be substantially T- or Z-shaped, having a hollow formation and being flat-laid, or disposed upright, in horizontal courses in vertical walls. The hollow interiors of the blocks may be filled with strengthening material or heat-and sound-insulating material or reinforcing bars may extend through aligned hollow interiors in the superposed courses. Compound-shaped corner and junction blocks are employed, where required.

Abstract: A lightweight building element is moulded in the form of a three or four sided shell defining an interior space for receiving a filler material. The element is trapezoidal in at least one elevation so as to be stackable with a plurality of identical elements for ease of transportation. The method of the invention involves laying the elements in courses and then filling the elements from above with a loose relatively heavy filler material such as gravel or sand to form a solid structure.

Abstract: A building block, which is adapted to be assembled with other such blocks to form a structural unit, includes a tetrahedrally shaped block body. The block body has an upper edge, two upper triangular faces sloping downwardly and mutally diverging from the upper edge, a lower edge, and two lower triangular faces sloping downwardly and mutually converging to the lower edge. The lower edge is disposed orthogonally and spaced below the upper edge. The building block further includes a hooking lip formed on and projecting from each of its upper and lower faces. The hooking lip of one block is adapted to interlockingly engage a hooking lip of another block. When the building blocks are so engaged, they may be assembled in an overlapping, geometric, self-supporting arrangement suitable for load bearing applications.

Abstract: A building block able to interlock with a similar building block. The block has a wall portion having a flat outer surface and an inner surface. At least one hollow spaced projection extends from the inner surface. Each projection comprises a narrow portion adjacent the inner surface and a wide portion extending from the narrow portion. The width of the wide portion is substantially equal to the distance between the neighboring narrow portions and the width of the narrow portion is substantially equal to the distance between the neighboring wider portions. The wall portion extends beyond the projections at at least one end of the block by an amount substantially equal to half the width of the block by an amount substantially equal to half the width of a wider portion.

Abstract: A finished construction plank processed from a log having sides chipped to a hexagonal profile to form tapered flattened surfaces along the longitudinal length of the log and cut to form a top and bottom half having a middle surface wherein each half is cut with at least one of a tongue and groove on each side extending parallel the middle surface along the longitudinal length of the plank.

Abstract: A roofing system comprises a plurality of prefabricated panels and spacers. The panels comprise a base member and a lamina covering. The lamina extends from one end of the panel to provide an overlap with an adjacent panel and is spaced inwardly of side edges of the base to form exposed parts. In accordance with the method, a row of prefabricated panels is secured to a roof, and a row of spacers is then applied adjacent the row of panels. A second row of panels is then placed adjacent the row of spacers, and a closure is placed over the spacers and onto a portion of the two rows of panels. The panels, lamina and closure are of readily available, standard sized materials.

Abstract: A profile consisting of two sections (1, 2) joined together. One section (1) is an open hollow section with an inner contour which is uniform with and somewhat bigger than the outer contour of the other section (2) and where the opening (4) is arranged so that two identical profiles can be telescoped into each other. According to the invention the other section (2) is solid or a closed hollow section. The opening (4) of the open hollow section (1), has a width which is somewhat bigger than the wall thickness of the hollow section (1) in an area (5), which is situated on the opposite side relative to the opening (4) of the connection (3) between the sections (1, 2). Thus, it is achieved that the open hollow sections (1) of the profiles substantially, completely surround the other sections (2) of the profiles, respectively, when two identical profiles are telescoped into each other.

Abstract: This glass element consists of a glass block, brick or tile which can be used for constructing panels, walls, slabs and the like. Each glass element comprises on its outer periphery interfitting means such as ribs and grooves and/or tongues and grooves adapted to engage corresponding interfitting means formed either on the adjacent glass block to tile, or on a vertical and/or horizontal independent frame; holes are formed in the end portions of the element for engagement by anchoring studs; the arrangement is such that the panels, walls, slabs and the like can be constructed without using mortar or reinforcing means.

Abstract: A vertically suspended refractory curtain wall having two courses of refractory shapes, the refractory shapes having flat exposed faces and an opposite face having a horizontal central recess, the portion of the refractory extending above the recess forming an upper hanger portion and the portion of the refractory extending below the recess forming a lower hanger portion, the lower hanger portions of one horizontal row of first course of refractory shapes fitting within the upper portion of the horizontal recess of an opposing horizontal row of side-by-side refractory shapes forming a second course and suspending that row, the next adjacent lower row of the first course of refractory shapes having their upper hanger portions fitting within the lower portion of the horizontal recess of the same second course refractory shapes and are suspended thereby, and so on, to form a vertically suspended refractory curtain wall.

Abstract: Building construction formed of structural module elements formed as a rectangular plate and having on the plate a coupling (2) for interconnecting them. The module element has a U-like cross section with two legs (3, 4) and a rib (5) between them, one leg (3) is longer and narrower than the other leg (4) and is connected to the plate surface, and the distance between the legs (3, 4) at the rib (5) is no greater than the least width of the other leg (4). The module elements are parallelly connected to each other by interconnecting the coupling (2) of one module element with the coupling (2) of the adjacent one, whereupon the upwardly or downwardly extending thicker legs (4) of one element are disposed between the downwardly or upwardly extending legs (3, 4) of the other elements.

Abstract: An inexpensive, modular, partition system is provided by panels which include a generally rectangular body and connector members on opposed sides of the body and integral therewith. Each connector member includes female and male elements joined together by a stop element which is generally perpendicular to the body. The panels may be connected to one another to form a wall by either an abutting type or overlapping type connection. In the abutting type connection, one connector member of one panel interlocks with a connector member of the other panel and the female and male elements come into mating engagement with each other, with the stop elements of each member abutting each other. In the overlapping type connection, the ends of adjacent panels overlap each other and the male elements of each connector member are secured to the body of an opposing panel.

Abstract: The present invention relates to a method of building a reservoir for storing liquefied natural gas at low temperature.This method consists in fixing on the internal wall 22 of the concrete vessel 3 a first thin lining 21 forming a first fluid-tight barrier, then in completely filling the space between the tank 2 and the concrete vessel 3 by means of a heat-insulating structure comprising an assembly of stacked blocks 25 of insulating material, associated with a second thin lining 24 forming a second fluid-tight barrier, said structure being supported by the concrete vessel and simply arranged round the inner tank.The building method according to the invention applies in particular to liquefied natural gas storage reservoirs installed on solid ground.

Abstract: A forge furnace chamber has rear, side and top walls each defined by an expanded sheet metal member and U-shaped mats of ceramic fiber insulating material supported thereon. First ones of the U-shaped mats have the closed ends thereof abutting the corresponding expanded sheet metal member with the legs of each mat extending inwardly of the chamber, and second ones of the mats have their closed ends facing inwardly of the chamber with the legs of each mat receiving the adjacent legs of an adjacent pair of the first mats therebetween, whereby the closed ends of the second mats extend across the inner ends of the adjacent legs of the first mats. The interleaved mats of insulating material are supported on the corresponding expanded sheet metal member by metal rods extending between the legs of the first mats adjacent the closed ends thereof and wire ties fastening the rods to the expanded sheet metal member.

Abstract: Spaced apart webs extend between upright sidewalls of a block having parallel upper and lower surfaces. A plurality of the blocks are placed in staggered linear courses to form a wall. Projections extending upwardly from the webs of the blocks are secured in the spaces between the webs of the blocks of the successive course. The projections interlock with the sidewalls for lateral alignment of the blocks, and are spaced from the webs for longitudinal adjustment of the blocks. Corner blocks and end blocks are also provided.

Abstract: A standard construction unit is provided by a monolithic precast reinforced concrete panel which has a generally rectangular peripheral configuration. A pair of flanges project from and extend longitudinally along the opposite sides of one face thereof to provide the unit with a shallow U-shaped cross-section. Connector elements are embedded within the other face of the panel adjacent its sides to permit connection of it to adjacent like panels. Door or window openings may be provided in the web portion.A building structure is supported on a footing and has walls, a roof and, optionally, a floor formed from the standard panels. The walls are formed by a plurality of the panels disposed vertically in side-by-side relationship and connected to each other by side fastener means bridging the panels and engaged with the connector elements and, at their lowermost ends, to the footing.

Abstract: A hollow building block filled with insulation is shaped as a pair of proximal but offset rectangles thereby to form steps at diagonal corners for fitting adjoining blocks together. A continuous insulation effect is obtained because the insulation in each rectangle extends beyond that of its proximal rectangle and overlaps with the insulation in the proximal rectangle of each adjoining block. Aligning holes and reinforcing grooves are provided for rapidly constructing strong structures from the blocks.

Abstract: Disclosed is a structural space element which consists of a tube having joining collars on its outer surface which protrude with equal depth throughout their perimeter. The joining collars are thicker along the side walls of the element. The thicker parts serve as vertical pillars. The collars are arranged in such a manner that the element is likable to corresponding other structural elements, situated at an angle of 180.degree. in relation to this element. Linked together the elements form a beam-pillar-ring system in which the elements are disposed opposite and imbricately to each other.

Abstract: T-shaped building blocks are assembled in a wall structure in horizontal courses of blocks, with alternate ones of the blocks in each course facing opposite directions and with the main body sections of each block overlying the main body sections of the next adjacent blocks. The blocks in the first course are placed on a footing, U-shaped clips tie the overlying portions of the main body sections of the blocks together to form rigid wall sections, and the wall sections are leveled by inserting wedges beneath the bottom course of blocks. Mortar is poured into the vertical openings of the bottom course of blocks to rigidly mount the blocks on the footing. As the wall increases in height, vertical tie rods are inserted internally through the course of blocks to tie the blocks in adjacent courses together. Insulation is placed in the vertical openings in the blocks to reduce the passage of heat and moisture through the blocks in the wall structure.

Abstract: A lengthwise miter joint and boards for forming it have mating effective V-tongue and -groove portions in their miter faces for positive registered alignment of the joint while it is being permanently fastened as by gluing, nailing, etc. The tongue and groove portions are centered widthwise of their respective miter faces so that the same boards may be selectively assembled either in angular or aligned relation to each other. The effective included angles of the tongue and groove provide registered angular assembly of the joint with a single rectilinear motion of one board perpendicular to the flat sides of that board. The effective V-tongues and -grooves characteristically provide relatively strong shapes to both boards in a joint.

Abstract: A first structural member having a portion beveled at an angle of 45.degree. which includes a mortise in the form of a generally cylindrical groove is joined to a second structural member having a portion beveled at an angle of 45.degree. which includes a tenon in the form of a generally cylindrical rib, with the beveled portions in an abutting relationship by a joint formed by the rib being snugly fitted in the groove. The members may be joined at a straight angle or at a right angle, and may be employed for producing modular structural frames; articles of furniture; modular toy constructions; wall attachments; flooring boards and other arrangements wherein the flexibility of straight angle and right angle permutations of interlocking members of standardized elongated configurations are utilized.

Abstract: An element for use with others of a like kind in the prefabrication of structures such as sliding clasp fasteners, comprising a hexahedral body of rectangular cross-section, the two faces of one of the two pairs of parallel faces defining said cross-section being of unequal length with that of relatively greater length having therein a longitudinal parallel-sided groove penetrating the remaining two faces of the body, and a parallel-sided tenon similar in width to said groove projecting from at least one of said remaining two faces.

Abstract: Interfitting building blocks are disclosed of both T-shaped and Z-shaped configurations and both blocks define external slots, internal openings and corner bevels for receiving expandable locking elements. The blocks are arranged in a wall in stacked, overlying relationship in horizontal courses of blocks, and the courses of blocks are locked together with U-shaped clips extending between adjacent ones of the blocks in a single course, and vertically extending laterally expandable locking elements extending through adjacent courses of blocks. Mortar is poured down through the aligned openings in the blocks and the locking elements to hold the locking elements in their expanded positions.

Abstract: A modular building structure is formed of wall sections of superimposed logs, the logs being slightly flattened on their abutting top and bottom sides and having vertically aligned transverse slots in their ends. The flange of a structural stud, such as rigid vertical channel member, is interengaged with the slots to hold the logs in position, and wooden wedges secure the logs to the stud flange. The logs on the sides of the building generally alternate in their thick end--thin end placement to keep the logs fairly level. Some log sections on the ends of the building have a majority of their thick ends positioned toward the center of the structure to accumulate their heights under the higher portions of the building's gabled roof. The roof includes a series of rafters supported on a series of the structural studs. The rafters are in turn connected to one another by generally parallel purlins running the length of the building.

Abstract: A wall system comprises a plurality of supporting frames and a plurality of wall panels associated in pairs with each respective frame. The two panels of each pair are interconnected in the regions of their upright marginal portions so as to extend in mutual parallelism and to define a space in which the upright supports of the associated frame are accommodated with clearance from each of the panels. An insulating member is accommodated between one upright support and one of the panels, and another insulating member is accommodated between the other upright support and the other panel.

Abstract: A panel for prefabricated metal buildings according to the present invention has a trough section which is deeper than that which can normally be obtained by a cold roll forming operation. The deep trough section is achieved by using a center web joint to connect a plurality of oppositely disposed U-shaped sections to one another to form the panel. The sections are connected by flanges which project outwardly from the side walls of the sections and the connection may be achieved by a crimping operation or by means of a plurality of clamps.

Abstract: A building system uses preformed blocks which are specially designed so that they key together when stacked to resist lateral movement and thus form a sturdy, load-bearing wall which does not require any mortar. In addition to a standard block, the system includes keyable corner and partition blocks as well as a cap block to provide appropriate smooth borders for windows, doors and the like.