Abstract: A structural assembly comprising a preformed connecting member and a tubular member to be integrally connected in surrounding relationship by said connecting member without requiring separate fastening means for effecting such connection. The structural assembly is particularly well adapted to be joined with similar structural assemblies into an elongated solar energy absorber panel structure. The connecting member and the tubular member are held in virtually inseparable engagement with each other with the connecting member surrounding and generally conforming to the outer peripheral shape of the tubular member by deformable sections of the connecting member which define interengageable locking means comprising strut lock shoulder and tooth sections. Deformation of the shoulder and tooth locking means into progressive contact ensures inseparable connection of the connecting member with the tubular member.

Abstract: A hose conduit comprises an inner tubular fluid conducting space which is surrounded by a ringshaped space. Openings are provided in the wall of the inner hose leading into the ringshaped space. In the ringshaped space is provided a longway passage extending through repeated bows and bends and repeatedly changing its direction. From the said longway passage openings in the outer wall of the said ringshaped space lead into the open. The assembly of the hose conduit is built up of at least two layers of thin foil which are connected together. The longway passage is obtained by profiling one of the foils, i.e. by applying a raised, embossed pattern to one of the foils.

Abstract: A long-distance heating conduit comprising one or more tubes which carry the heating medium, are laid in the conduit and are surrounded individually or jointly by at least one layer of heat-insulating material and are covered by at least one cover foil which extends in a closed path round the tube or tubes and is provided with holes.

Abstract: A lapped seam can having a high safety characteristic used as containers of soft drinks or beer wherein the cut-burrs at the end of the inner end portion of the can blank are completely removed so that micro-leak passages apt to occur in the lapped seam can are shut off, thereby permitting a long term storage of the can content without deterioration by preventing metal from being dissolved out from said inner end portion.

Abstract: This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded.The method comprises designing two longitudinal half-sections of the article, the half-sections being contoured internally to cooperatively form the desired flow passageway. Each half-section is designed with a pair of opposed side flanges extending between the end flanges and integral therewith. The half-sections are positioned with their various flanges in confronting relation and with elongated metal gaskets extending between the confronting flanges for the length of the array. The gaskets are a deformable metal which is fusion-weldable to the end flanges. The mating side flanges are joined mechanically to deform the gaskets and provide a longitudinally sealed assembly.

Abstract: A preform of a resilient thermoplastic polymeric material is first fabricated then folded into a complex tubular shape corresponding to the shape of a pipe fitting, heated while in said configuration to soften said polymeric material, and then cooled while maintained in said configuration.

Abstract: A method for the continuous production of completely or partly foamed thermosetting polymerizable plastic articles, such as pipe insulation shells or sleeves. One or more sets of justaposed mold-carrying endless conveyors are employed wherein one conveyor of each set supports a series of longitudinally contiguous mold halves complementary with a series of longitudinally contiguous mold halves supported by the other conveyor of the set. The conveyors are advanced simultaneously, and during the juxtaposed portion of travel define a laterally closed, longitudinally extended mold cavity which moves or advances. The cavity thus defined comprises a plurality of zones corresponding to tube segments extending longitudinally in side-by-side, substantially planar disposition, with thin hinge-forming channels interconnecting adjacent segment zones. A thermosetable foam-forming resin mix is distributed on to one of the complementary mold halves prior to closing of the mold cavity.

Abstract: A conventional fin-type seam formed on tubed bag forming sheet material provided on one face with heat sealable material, has heat sealed overlapping edge portions forming the seam. The fin slides over a back-up plate extending between it and the body of the tube to prevent scuffing of the heat sealable material with consequent seal failure. A tracking wheel engaging the fin presses it against the back-up plate, and maintains alignment.

Abstract: A re-enterable enclosure, or enclosure kit, for use with a cable splice, or the like, including, among other elements, a longitudinally split tubular member which is sufficiently flexible and resilient that the edges of the slit thereof may be spread to permit lateral application of the tubular member over a cable splice, or the like, the tubular member having external radial locking ribs respectively extending longitudinally among the edges of the slit therein, and a locking strip of generally H-shaped cross section including two outer flanges and two inner flanges interconnected lengthwise thereof at their respective junctions by a web, the outer flanges respectively having internal longitudinal grooves therein adapted to receive the external locking ribs on the tubular member to prevent spreading of the edges of the slit in the tubular member, the web of the locking strip being insertable longitudinally into the slit in the tubular member from one end of the tubular member with the outer flanges engaging t

Abstract: A sealed lay-in electrical conduit duct which is oil-tight and is comprised of U-shaped sealing collars which telescope into adjacent ends of aligned open ended sheet metal duct sections which are troughs generally U-shaped in cross-section and have their open sides unobstructed throughout their length and closable by a movable sealing trough cover. The sealing collars and duct sections have telescoping bottom and side wall portions, each of which carries elongated cooperating interengaging rib and groove elements which are aligned and extend normally to the longitudinal axis of the duct sections. Each collar member carries a sealing element extending throughout substantially its entire length which covers and seals the line of juncture of the adjacent ends of trough sections held in rigid aligned relation by the collar member.

Abstract: The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the body blank, bending the other parallel marginal edge portion of the blank to form a crease thereon, rolling the blank into tubular form to place the adhesively-coated marginal edge portion and the creased marginal edge portion in an overlapping, facing position, and imbedding the creased marginal edge portion into a portion of the adhesive on the one marginal edge portion to bury the raw metal edge, the imbedding being achieved by compressing the overlapped marginal edge portions together to assemble the lap side seam of the tubular body.

Abstract: A volumetric pump comprising a flexible conduit and roller means for collapsing the conduit to pump liquid therethrough. The conduit is formed to provide a projecting rib to anchor the conduit to an underlying support device. The conduit is formed by forming a flat elastomeric sheet into tubular form, the opposite side edges of the sheet having flanges which are disposed into abutting relation to form the anchoring rib. Preferably, the sheet has a reinforcement imbedded centrally therein. The support may include jaws for clamping the two flange members into abutting relation and saddle elements to insure the desired pumping action by the rollers as they are advanced along the tubular member.

Abstract: A method is described for joining the opposite edge portions of a sheet of flexible material to form a durably-joined elongated tubular member. The material is shaped or folded to provide opposite edge flaps, spaced and extending outwardly from the tubular member formed. A strip of connector tape, folded lengthwise to form a pair of leg flaps, is interposed between the edge flaps with its legs confronting and extending oppositely thereto. Each leg flap is bonded to its corresponding adjacent edge flaps, whereby the tape serves to connect the edge flaps and form a longitudinal joint within the elongated tubular member. The tubular member so produced may include an insulating layer and a flexible skeletal structure therewithin.

Abstract: A plurality of parallel constructed members that have means for securing the two parallel members together along an axis parallel to the longitudinal axis of the members to lend structural support of the members relative to each other. This allows the structurally secured members to have structures having high strength to weight ratios and requiring minimum volume for the securing structure.

Abstract: An enclosure and enclosure kit for encapsulating a splice or splices between main and service cables, the enclosure containing a potted compound which prevents the entry of moisture into the splice or splices. The enclosure is re-enterable to permit the addition or deletion of service cables, the potting compound being of a type which is readily removable to permit adding or deleting service connections. More particularly, the enclosure kit includes a re-closable, longitudinally split tubular housing and re-closable, longitudinally split end caps telescopable over the ends of the tubular housing, together with a supply of potting compound adequate to completely charge the enclosure, or to replace potting compound removed upon re-entry. Readily releasable locking elements are provided to close the longitudinal splits in the tubular housing and in the end caps, such locking elements also resisting circumferential expansion of the enclosure components mentioned.

Abstract: An insulating protective cover sleeve assembly for a guy wire consisting of a longitudinally slit sleeve of insulating material having an enlarged bottom end portion. In the lower end portion of the sleeve is secured a clamp, likewise of insulating material. The clamp consists of two opposing jaws integrally connected by a flexible band. The jaws are formed with two sets of different-sized opposing arcuate recesses to receive different sizes of guy wires therebetween. One of the jaws has a counterbore hole to receive a clamping screw which is threadedly engageable in the other jaw to tighten the clamp. The wall of the enlarged sleeve portion has a hole registering with the counterbored hole so that a screwdriver or Allen wrench may be drivingly engaged with the clamping screw. A channel-shaped clip engages over the top corner portions of the sleeve segments adjacent the top of the sleeve slit and is secured to one segment.

Abstract: Thin walled sleeves of heat recoverable material are made by inserting the opposing edges of a length of heat recoverable material into a thermoplastic insert having incorporated therein a peroxide or other heat activatable crosslinking agent, placing a reinforcement comprising a foraminous member, for example, a strip of glass cloth, or other high melting material, of relatively open weave adjacent to the insert and in contact therewith, followed by heating the assembly to form a weld. Optionally, a combination of the foraminous member and film can be placed in contact with the insert.

Abstract: A convolutely wound tube having portions adjacent the inside and outside edges thereof more pliable than the remainder thereof for easily conforming to the contour of the inside and outside surfaces thereof and method for making same from a predetermined length of elongate sheet material having opposed first and second surfaces and first and second longitudinal side edges, wherein the method includes mechanically deforming a minor portion of the sheet material adjacent the first or second longitudinal edge, or both, thereof to render same more pliable than the major portion of the sheet material, convolutely winding a predetermined length of the elongate sheet material transversely of the length into a convolute tube while forming the inside edge of the tube from the first longitudinal edge and the outside edge of the tube from the second longitudinal edge of the sheet material so that the pliable portion of the sheet material adjacent the inside and outside edges will readily conform to the contour of the in

Abstract: A multiple ply wood article having a first wood veneer ply defining a generally tubular shape, which may be generally cylindrical, with a pair of confronting ends providing a first seam. A second wood veneer ply defining a generally tubular shape generally similar to the shape of the first wood veneer ply with a pair of confronting ends providing a second seam. The second wood veneer ply being disposed exteriorly of the first wood veneer ply in general surface to surface adjacency. The grain orientations of the first and second wood veneer plies being oriented generally parallel with respect to each other. Adhesive means securing the wood veneer plies to establish a multiple ply tubular body. The first and second seams are preferably in generally relative nonaligned position. Additional wood veneer plies having similar structural features may be secured over the first two plies. Closure elements may be secured to one or both ends of the tubular body in order to establish a container.