Abstract: The Invention relates to a tornado or hurricane shelter that is located above ground and at ground surface, large enough to provide a place of safety for up to ten people and is handicap accessible. The structures shape is oblong and a oblong spherical radius at the top. The basic frame and doors are solid thick hardwood planks bonded together with glue and fastened with lag screws and the windows are high impact plastic fastened to the structure with bolts. The door is a two part door with a sight window in the top, the side windows are removable from inside and they blend to the shape of the structure. High strength wire ropes go over the shelter and attach to turnbuckles which attach to earth anchors installed deep into the earth. Wire ropes and where it attaches to the earth anchors with turnbuckles is covered with a non metallic cover. The upper part door attaches to the lower door and the lower door attaches to the basic structure with heavy duty hinges and latches that are commercially available.

Abstract: A roof edge system includes a water dam and a fascia secured to the water dam with spring clips. The water dam is mounted to a roof and extends upwardly to a peak before extending downwardly along the face of an outside wall. Each spring clip is mounted to the water dam, and is covered by the fascia. The fascia includes a catch that cooperates with a detent on the spring clip to hold the fascia in place. The fascia extends over the peak of the water dam and down the wall to a hook portion that hooks over an outwardly extending lip at the lower end of the water dam. The resulting system provides a hidden connection between the water dam and the fascia, is inexpensive, and can be quickly and easily assembled and disassembled without any tools, while also providing superior wind and water resistance and improving the appearance of the roof edge.

Abstract: The invention relates to a metal roof plate for cleaning and maintaining the clean state of building roofs, in particular from plant growth of environmental pollution. The object of the invention is to improve the efficiency of said metal roof plate comprising a metal reacting in conjunction with moisture, said plate being produced by punching from material in the shape of a plate, and having textured reaction surface (2) with raised lumps (3) and openings (4). The object is attained in that the openings (4) of the lumps (3) are inclined in the opposite direction to the direction (A) of water discharge.

Abstract: The use of a thermoplastic molding composition differing from ABS and comprising, based on a total of 100% by weight of amounts of components A and B, and, if desired, C and/or D,a: as component A, from 1 to 99% by weight, preferably from 15 to 60% by weight, in particular from 25 to 50% by weight, of a particulate emulsion polymer with a glass transition temperature of below 0.degree. C. and with a median particle size of from 50 to 1000 nm, preferably from 50 to 500 nm,b: as component B, from 1 to 99% by weight, preferably from 40 to 85% by weight, in particular from 50 to 75% by weight, of at least one amorphous or partly crystalline polymer,c: as component C, from 0 to 50% by weight of polycarbonates, andd: as component D, from 0 to 50% by weight of fibrous or particulate fillers or mixtures of thesefor producing covering grid plates for ventilator openings.

Abstract: A soffit lock retains a facing stone or shutter to a cap stone soffit. The soffit lock attaches on the inner surface of the shutter and includes a hook portion wrapping around and over the top of the shutter. A shelf portion includes an orifice formed therethrough which is threaded to receive a stud member. The stud member extends upward and can be raised to engage a bore formed in the soffit.

Abstract: A longitudinally divisible crane boom segment includes at least a first and a second section that are easily nested together for transport. The sections each include at least one chord member, at least one bracket attached to the section, and a plurality of partial lacing elements. Each partial lacing element has a first end permanently attached to the at least one chord member and a second end. The second end of at least one of the plurality of partial lacing elements of the first section is connectable to a bracket attached to the second section to hold the sections in a nested fashion.

Abstract: Multiple layers of honeycomb or foam core lightweight materials are bonded together side-by-side to increase strength, to customize strength relationships in relation to form for particular structural components and to provide a base for strong connections to honeycomb and foam structures. Increased strength results from utilizing outside layers as skins for some embodiments with an effect of progressive increase of strength of the core with the multiple layers. Connection strength is provided by formation of connection bays in one or more outside layers to which connection members of structural components are bonded in the connection bays. The outside or distal core layers can be higher density and higher strength than inside core layers for dynamic and impact-related use-conditions in addition to providing a thicker and stronger surface to which other structures and other members can be connected.

Abstract: A building for use in harsh environments where drift materials, such as snow, tend to collect against exterior walls. One or more exterior walls formed of wall panels extend upwardly from a base perimeter of the building, and provide a building exterior surface. The surface curves outwardly and upwardly adjacent the base perimeter so that the exterior walls have an undercut region adjacent that base perimeter. The building is portable, and can be dismantled when not being used.

Abstract: A structural component having a curved wall, such as an aircraft fuselage pipe, has a grid structure formed of box frames produced by winding tapes of fiber reinforced synthetic material, so-called prepregs, onto mold bodies. These mold bodies are then assembled on a mandrel for covering with a planking and curing whereby the tapes are bonded together to form stringers intersecting with ribs in a grid structure and whereby the planking is bonded to the grid structure. The ribs are reinforced by fiber reinforced belt segments of synthetic material inserted into gaps between adjacent short ends of the mold bodies, whereby these belt segments are bonded to the ribs during curing. The belt segments have a width corresponding to a multiple of the width of the stringers and hence protrude radially inwardly. Preferably, an edge reinforcing strip of fiber reinforced material is arranged alongside the radially inner edge of the belt segments.

Abstract: A surface type structural component particularly applicable for aircraft, mprises a reinforcing grid structure of longitudinal and cross ribs made of fiber reinforced material. The grid structure is assembled from a plurality of molded box frames or cells. The modular box frames are formed on mold bodies and assembled and bonded together to form the reinforcing grid structure while still on the mold bodies. A laminated sheathing is bonded to the grid structure. Methods and apparatus including an automated assembly plant are disclosed for manufacturing the surface type structural component. The manufacturing plant includes automated handling equipment for molding the box frames on mold bodies, assembling the mold bodies and box frames into grid structures, forming and applying a laminate sheathing, curing and hardening the two-dimensional grid structure and laminate sheathing combination under heat and pressure and removing the mold bodies.

Abstract: A span construction having longitudinal cables extending between end supports, a flexible sheath enclosing the volume bounded by cables and end supports, a fan for forcing a gas through the sheath and gas escape holes on the underside of the sheath to raise the span in response to escaping gas. The span may have an airfoil cross-section so that it is raised in response to cross wind loading.

Abstract: A method is disclosed for fabricating rib structures of different sizes for a segment of an airfoil having both a spanwise taper in thickness and at least one aerodynamic surface having a substantially constant radius of curvature in the chordwise direction. In one embodiment a plurality of rib webs are formed at least as large as the largest rib structure. Each of the rib webs is trimmed at their lower edges progressively greater amounts to form rib webs of a proper size for each rib structure. A plurality of upper and lower rib caps as well as front and rear spar attachment brackets are formed and attached to the trimmed rib webs. In another embodiment the rib webs are formed with either or both integral upper rib caps and spar attachment brackets. In still another embodiment a plurality of rib webs are formed and joined together by twos by inverting one rib web to the other and progressively overlapping their lower edges and fastening them together to form properly sized rib structures.

Abstract: A structure protected against flow-induced oscillations by carrying a shroud around at least part of its periphery, the shroud comprising peripherally-spaced members of slatted shape. This shape, and some dimensional limits, are necessary to create the right type of flow in the passage between the shroud and the structure. The invention covers structures shrouded around their entire periphery, and incompletely-shrouded structures: the performance of the latter can be particularly advantageous when the direction of flow relative to the structure is predictable. Where an installation comprises several structures, the invention may also be used to control the wake from the more upstream, thus diminishing buffetting of the more downstream.

Abstract: An aircraft wing box construction including canted sheet metal spar webs continuously tied to the upper and lower skins. Sheet metal intercostal stiffeners of substantially triangular configuration are spaced spanwise along the web to provide shear stiffening for the web and intermittent stabilization for the upper skin. Both the shear web and intercostal stiffeners are fastened to spanwise continuous spar caps which are attached to the upper and lower skins. These caps, supported by the intercostals and webs, provide sufficient stabilization to prevent upper skin buckling up to ultimate design stress with a minimum of shear webs thereby providing significant weight savings.