Abstract: An enclosure, such as a column for supporting a roof, is defined by plural, adjacent, beveled segments, including two outermost segments, folded and joined. An adhesive is used on the beveled edges to help hold the shape of the enclosure. In addition, the edges of the outermost segments are configured to interlock so that, with manual force and no tools, the outermost segments can be snapped together, thereby holding the enclosure while the adhesive cures. The configurations on the outermost edges are preferably made of interlocking projections and recesses, at least one of which projections is displaced slightly when the outermost segments are joined. The segments may be formed by milling a single panel while applying tape to the joints between segments to hold them in adjacent relationship. The tape may then be removed after the enclosure is formed. The preferred material for the enclosure is foamed plastic.

Abstract: This invention provides double-skin tubular structural members having fibre-reinforced polymer outer tubes, steel or otherwise generally metallic inner tubes and generally a bound aggregate such as concrete in between the tubes.

Abstract: This method of strengthening a wood piece comprises the steps of: superimposing the wood piece upon a reinforcing member; and compressing the wood piece and the reinforcing member.

Abstract: Connectors for joining adjacent modular floor covering units. The connectors include a film and an adhesive layer coated on one side of the film. To install tiles using the connectors, a first tile is placed on the floor and a connector is positioned so that the adhesive layer faces upward and does not contact the floor. The connector is typically positioned so that only a portion of the adhesive layer adheres to the underside of the tile, leaving the remainder of the connector extending from the underside of the tile. Tiles are then positioned adjacent the first tile so that a portion of the connector adheres to the adjacent tiles. In this way, the connectors span adjacent tile edges. The tiles are assembled on a underlying flooring surface without the need to attach them to the floor surface. Rather, the tiles are linked to each other with the connectors, so that the tiles create a floor covering that “floats” on the under lying floor surface.

Abstract: The present invention teaches apparatus, systems and methods for green roofing comprising interlocking and nesting panels on which vegetation can be grown before the system is installed. Systems may be installed on flat or pitched surfaces. The present invention also teaches apparatus, systems and methods for affixing green roofs to a roofing surface and apparatus, systems and methods for the irrigation of green roofs.

Abstract: To render a formwork (10), having a hollow (11b) defined therein and embedded in the elongated concrete member (40) during casting of a concrete material, to be lightweight, environmentally friendly and inexpensive and to have a sufficient strength, the formwork (10) includes a tubular member (11) formed by bending an oblong plate of corrugated cardboard (5) made of paper. The corrugated cardboard plate (5) includes a plurality of corrugated cardboards (3) laminated together and each formed by bonding liner sheets (2) to surfaces of a corrugated sheet (1). The corrugated cardboards (3) are laminated together with flutes of the corrugated cardboards (3) oriented in a direction (P) across a thickness of the corrugated cardboard plate (5), and a sheet (4) is bonded to front and rear major surfaces thereof.

Abstract: A fluid container for packing a product includes a check valve for each container member. A bonding structure of check-valves to a fluid container and a production method and apparatus of fluid container are disclosed in detail where the check valve is capable of reliably keeping the expansion of the fluid container without any fluid leakage after inflating the fluid container. As the check-valve is bonded to only one of thermoplastic container films, both films of the check-valve are fixed to one of the container films, thereby preventing the reverse flow by tightly closing the check valve. The manufacturing apparatus includes an up-down roller controller which precisely positions the films to form the check valve. The manufacturing apparatus can produce the fluid container with high reliability by having a belt conveyor specially designed for cooling down the heat sealed films before separating from the belt conveyor without damage.

Abstract: An apparatus for wrapping groups of rolls of products with a sheet of film comprises a station for packaging and moving, with a stepping motion, in a predetermined direction, a succession of groups of products wrapped in a sheet of film, having an open front side defined by two opposite flaps, and means for closing the open side comprising a unit consisting of: two pairs of mobile elements, arranged side by side in said direction, to allow the flaps of film of the two groups of products arranged one after another to be brought together and closed; first movement means for the unit, allowing synchronized movement of the two pairs of elements, respectively, in the same direction as the groups, for one group feed step, bringing together and closing the flaps, and a movement opposite to said direction over a distance equal to the distance previously traveled, simultaneously with a feed step of the groups to be packaged, so as to position the unit at two further and subsequent groups of products to be closed.

Abstract: A packaging machine includes a grouper section having changeable lane sizes and a dual servo grouper that separates product into product sets and allow the product sets to accelerate to the lane chain speed in a controlled manner. The grouper section further includes disappearing lugs that pivot into the lanes via a cam surface provided in the lanes. The product rides upon a raised surface of the cam surface as the lug pushes the product set together down the lane, thus ensuring that no gaps are provided between product set members. A gripper/grid section of the packaging machine includes a bars that travel about a carousel with a gripper head assembly and a grid assembly pair moving up and down the bars as defined by cam surfaces within the gripper/grid section. The grid section is presented below the product set such that the product set is fed through the grid section in a one-way trip into a case. The gripper head assembly cam device and the case feed section both include height adjustment assemblies.

Abstract: Device for screwing caps onto bottles and similar containers includes a work station, which supports means for gripping the caps and which moves toward and away from the bottles, carried by a relative feeding line. Actuator means, associated to the work station, drive the gripping means into rotation, so as to screw the caps onto the corresponding open heads of the bottles. Working means for friction coupling of the actuator means with the gripping means, are operated in step relation with the positioning of the caps close to the open heads of the bottles.

Abstract: Methods, devices and computer program products automatically or semi-automatically package an object in a covering material such as casing and/or netting by pulling a covering material upstream of a product chute off an exterior surface of the product chute to automatically enclose the object in the covering material as the object exits the product chute, then applying a clip to the covering material to secure the object in the covering material.

Abstract: The invention relates to a wrapper for packaging one or more articles, the wrapper being constituted by a sleeve of heat-shrink plastics material for shrinking onto the article(s) for packaging, said sleeve being made from a film that is folded in half and whose corresponding end zones are united. According to the invention, the wall of the sleeve is embossed at least in part with a predetermined pattern so that said pattern appears in relief on the outside face and/or the inside face of the sleeve and remains after said sleeve has been shrunk onto the article(s) to be packaged. Preferably, a semi-rigid film is used that includes an elastomeric phase in its formulation.

Abstract: A novel packaging article and method are disclosed for an array of flexible, absorbent articles compressed or uncompressed, having an article front face, and article back face, an article top face, an article bottom face, and a pair of article side faces. An upper article section and a lower article section have mutually different calipers. The flexible, absorbent articles are placed in a configuration array such that article front faces contact article front faces or such that article back faces contact back faces of adjacent absorbent articles. The package provides an array having preferred size and requires less compressibility force. A flexible outer casing does not require compressing wrapping to maintain the array as previously required in conventional packaging arrays having flexible outer casing. The packaging article and method are particularly suited for providing preferred advantages to the packaging and commercial distribution of disposable diapers.

Abstract: A device for cutting and fixing plastic film in machines for wrapping pallets comprises: means for spacing (1) at least one layer (2a) of the film (2) at a distance from the rest of the wrapping already applied to the pallet (13) so as to create an empty compartment (16) between said layer (2a) and the pallet (13); means for deforming (4; 17) said layer (2a) of film (2), able to render possible the access to the compartment (16); means for cutting (3) the film (2); means for withholding (8) the film (2) in the proximity of at least one end (7) of the cut film (2); and means for pushing (6) the end (7) of the cut film (2) within the compartment (16). A sequential process enables activation of the aforesaid device so as to perform the corresponding operations in series.

Abstract: The invention relates to a method for wrapping a long or round part, for example a steel part, for instance in the form of a steel strip coil, a steel wire roll or a round steel part such as a roller bearing ring, the steel part being wrapped in a stretch film, in particular a plastic stretch film, in a helical and covering manners. In order to realize a short term wrapping of a long or round part, irrespective of its material properties, and as a reliable transport protection the invention proposes that a strip material which is significantly more resistant than the stretch film and has an ad coating on the side facing—the stretch film is wound over the stretch film likewise in a covering manner.

Abstract: A method and system for packaging rolls of products, in particular rolls of toilet and/or kitchen paper, in which a wrapping sheet is wrapped in a “U” shape around a group of products so that its two end flaps project from the group, each of the end flaps then being folded in an “L” shape so that one portion adheres to the group and the remaining end portion extends transversally to the group and adheres, at the point where they meet, to the end portion of the other flap; the flaps then being sealed to one another at their end portions to form a tubular wrapper.

Abstract: An apparatus for packing products includes a product information acquisition stage arranged to acquire information relating to one or more characteristics of products on a product packing line; a bag supply system arranged to supply bags sequentially as individual products on a conveyor approach a packing apparatus; and a bag opener arranged to automatedly take up a bag from the bag supply system as each individual product approaches the bag opener, and to subsequently machine open a mouth of each bag to a controlled extent based on information relating to products being packed acquired at the upstream product information acquisition stage. An apparatus for packing products includes a product information acquisition stage arranged to acquire information relating to one or more characteristics of products on a product packing line; a product packing stage; and two or more generally parallel conveyors arranged to deliver products of different sizes to the packing stage.

Abstract: Disclosed is a device for temporarily creating and maintaining a depositing cavity in a container to be filled with objects, in particular flexible packages, standing substantially upright on the floor of said container, said device including: a moveable planar first restraining member with an anterior surface facing into said cavity and a posterior surface; and a moveable planar second restraining member with an anterior surface facing into said cavity and a posterior surface; the restraining members being operationally arranged to be removably insertable into and between facing side walls of a container to be filled with upright stacked objects and thereby to define a temporary cavity which facilitates the insertion of the objects into the container.

Abstract: A plant (10) for the continuous packing of food products in modified atmosphere (11), comprises a machine (12) for continuous packing of food products in modified atmosphere and conveyor (13) for the continuous sequential feeding of food products to the machine. A device (21) is present at the entrance of the machine (12) that temporarily submits a product fed by the conveyor (13) to vacuum and to a modified atmosphere before being packed in modified atmosphere in the machine.

Abstract: A device for filling stand-alone flat-bottom bags with opposing side edges and a bottom, in particular filling them with liquid including a filling carousel which can rotate about a vertical axis and which has a plurality of holders for one bag each provided on its circumference. The filling carousel has a bag feeding station, a bag opening station, a filling station and a removal station as well as a sealing station. To optimize the filling device and in particular to achieve a higher throughput, a magazine for prefabricated bags and a feeding carousel for the bags is provided in the bag feeding station, containing a plurality of holding devices for one bag each whereby the holding devices can be driven to rotate about a common axis in order to remove each bag individually from the magazine and transfer it continuously to a holder of the filling carousel.

Abstract: A strapping installation, which serves in particular for longitudinally strapping stacks of printed products such as newspapers or periodicals with a strap (6), includes a strapping position with a bearing surface (2) and a device for positioning the objects to be strapped (1) in the strapping position and a device for discharging the strapped objects. The strapping position includes a fastening region (3), situated below the bearing surface (2) and equipped for feeding the strap (6) into a loop channel (4), securing one end of the strap loop (7), retracting the strap (6) from the loop channel (4), and fastening and severing a completed strapping. The installation also includes a loop guide (10), which is stationary during strapping, which rises from the bearing surface (2) inside of the loop channel (4) and beside the strapping position, and which arches across or towards the strapping position.

Abstract: The invention concerns a device designed to be used in horse riding, consisting of a pivoting base provided with female fixing means so as to be secured to the rider's foot through a male fixing means attached on the sole of his shoes. The use of a single stirrup branch enables rapid release of the foot outwards. Said branch includes damping means so as to absorb part of the forces exerted on the stirrup by the rider's weight and thus avoid accidental release of the attachment. The automatic stirrup provides greater safety in case the rider falls by preventing the foot from being jammed through the use of a single branch prevents the rider from losing his stirrups as a result of the horse's sudden movements or loss of balance through the fixing means and dampens the rider's movements, particularly when jumping over an obstacle through its damper.

Abstract: Methods of separating fluids using capillary forces and/or improved conditions for are disclosed. The improved methods may include control of the ratio of gas and liquid Reynolds numbers relative to the Suratman number. Also disclosed are wick-containing, laminated devices that are capable of separating fluids.

Abstract: A dust collecting apparatus for a vacuum cleaner has a first cyclone dust collecting part and a second cyclone dust collecting part that are arranged substantially parallel with respect to an air inflow opening of a vacuum cleaner main body, and may be mirror images of each other. The first cyclone dust collecting part comprises a first suction opening and a first discharge opening, and the second cyclone dust collecting part comprises a second suction opening and a second discharge opening. The first and second suction openings are connected with the air inflow opening of the vacuum cleaner main body, and the first and second discharge openings are connected with a vacuum suction chamber of the vacuum cleaner main body. Accordingly, a dust collecting apparatus for a vacuum cleaner can be realized, having an advanced suction capability and dust separation capability.

Abstract: A novel sanitary and odor free workstation having two spaced apart, transparent plate members that are operatively interconnected to a vacuum source and in combination define a vacuumed air evacuation area that functions as a workstation between the plate members. Thus, a user can easily position an object of choice within the workstation, or even adjacent thereto, and have hands free controlled access that allows manipulation of the object yet protects the user, and others, from physical or airborne transference of bacterial matter and from any undesirable odors emitting there from and also protects the user's eyes from any potential damage, respectively. Furthermore, the workstation is portable, self-contained, safe, sanitary and is substantially usable with any object of choice.

Abstract: A manually-guided, portable suction device/blower is provided, and includes a blower unit having a motor for driving the blower unit, a blower tube that extends from the blower unit, a collection bag, wherein during suction operation of the suction device/blower, the blower tube opens out into the collection bag, and a potential-equalizing device disposed within the collection bag, wherein the potential-equalizing device is electrically conductively connected with an electrical ground connection of the suction device/blower.

Abstract: A travel pillow has one or more air filters and a body with a soft material coupled to the one or more air filters. The air filters can be powered by a power source located within the pillow. The one or more air filters can have an air intake and an air outflow in communication with an exterior surface of the body. The air filters may be an electrostatic precipitator filter or use a filtering material to clean the air.

Abstract: An air induction system for an engine to remove contaminants from intake air prior to delivery to the engine. The system includes an assembly for filtering air which is mounted in advance of the engine, and a duct for delivering air from the assembly to the engine. A sealing system is provided which prevents entry of unfiltered air while simultaneously permitting movement of the engine relative to adjacent parts of the airframe as engine power setting varies. The seal is protected from high pressures in the duct which can occur in operation of the engine.

Abstract: A cyclone dust-collecting apparatus capable of separately collecting relatively large dust particles and small dust particles, and implementing compact size and light weight thereof comprises a suction air inlet, a first dust-collecting chamber for collecting relatively large dust particles from dust-laden air drawn in through the suction air inlet, a second dust-collecting chamber for collecting relatively small dust particles from the air passed through the first dust collecting chamber, a cyclone generation portion extending across the first and the second dust-collecting chambers to provide fluid communication therebetween, a dust separation assembly formed in the cyclone generation portion configured to collide with the dust drawn in through the suction air inlet and to form a cyclone air stream in the second dust-collecting chamber, and an air discharge pipe disposed in the cyclone generation portion spaced apart from the dust separation assembly.

Abstract: The invention relates to a filter module in the form of a hollow body with at least one chamber. The walls of the hollow body are made of a non-metallic material that can be comminuted and/or disintegrated in a recycling process; the material being a paper product, such as cardboard, paper or paperboard, or a fibrous material, such as wood or pressboard material.

Abstract: An air cleaner (40) includes a housing (48) and an access cover. The internal volume of the housing (48) can be reach through an opening (70) in a side wall of the housing. A filter element (50) having fluted filter media is removable and replaceable from the air cleaner (40). The housing is constructed and arranged to cam the element (50) into sealing engagement with the housing (48). The access cover includes structure to help support and ensure proper seating of the filter element within the housing. A method of installing the filter element in the air cleaner includes sliding a portion of the filter element against a slide surface in the housing. A method of servicing an air cleaner includes tilting the filter element against a tilt surface in the housing to release a seal between the filter element and the housing. The filter element can have a handle to assist in servicing of the air cleaner.

Abstract: The present invention overcomes the limits of activated carbons, ion exchange resin beads and fibers, and liquid form ion exchangers for acid, base, or VOCs gases removal by providing a filtration assembly for the filtration of chemical contaminants and particulates from an air or gas stream, the assembly having a low pressure-drop structure. The filtration assembly includes a low-pressure drop chemical filter, a low-pressure drop particulate filter, and an air transportation device, such as a fan or blower, all combined in a housing.

Abstract: A filter element for mounting in a filter housing has a support frame for supporting filter media and a seal integrally formed with the support frame for sealing against the filter housing.

Abstract: The present invention is characterized in that a casing 2 connected to an exhaust system 8, a honeycomb filter 3 placed in the inside of the casing 2, the honeycomb filter having a plurality of cells partitioned by partition walls, and plasma generation electrodes 6 placed being faced each other by sandwiching the honeycomb filter there are included, particulate matter contained in an exhaust gas is collected by the honeycomb filter 3, nitrogen monoxide contained in the exhaust gas is oxidized to nitrogen dioxide by nonthermal plasma generated between a pulse electrode 4 and an earth electrode 5 constituting the plasma generation electrodes 6, combustible materials in the particulate matter collected and deposited on the surface of the partition walls are removed through oxidation by the nitrogen dioxide produced. As a result, the honeycomb filter 3 can be regenerated.

Abstract: A honeycomb structural body comprising: a pillar-shaped ceramic block and a sealing material provided on an outer peripheral portion of said ceramic block, each of them having irregularities formed on an outer peripheral face wherein: when a least square curve is determined by a least square method on the basis of points constituting the contour of a cross-section, a center-of-gravity is defined as c1, a distance between a minimum concentric circumscribed curve having c1 and the center-of-gravity c1 is defined as D1, a distance between a maximum concentric inscribed curve having c1 and the center-of-gravity c1 is defined as D2, and the following inequality is satisfied: about 0.

Abstract: Curved shapes applicable for making lawnmower cleaning tools for removing debris in a cutting chamber of a lawnmower have been developed. Using these conformally shaped curves improves the performance of mechanically based lawnmower cleaning tools dramatically. The conformal shapes closely conform to the shape of structures found in the cutting chamber of lawnmowers. The shape is designed such that in use, curved portions of tools based on them usually pass within about ¼ inch of the surfaces being cleaned even if the curves touch the cutting chamber surfaces at only one point. Straight portions can be adjacent the curved portions of the curves for cleaning the vertical portions such as a mower skirt around the cutting chamber. The curves can also comprise smaller features designed for cleaning hard to reach areas of the lawnmower cutting chamber.

Abstract: A riding mower has multiple cutting units visible to the operator when mowing, and easily accessible for service and maintenance work. The riding mower chassis has a front end, a rear end, a left rail, a right rail, a pair of front wheels mounted at the front end, and a pair of rear wheels mounted adjacent the rear end. At least a portion of the left rail and right rail extend from under the operator module to define an uncovered area between the left rail and right rail adjacent the front end of the chassis. A first row of cutting units may be in front of the pair of front wheels, and a second row of cutting units behind the pair of front wheels. One of the cutting units in the second row may be positioned in the uncovered area between the left rail and the right rail.

Abstract: A lawn mower has driving front wheels and driving rear wheels. The mower includes a mower unit mounted between the front wheels and the rear wheels to be vertically movable, an engine mounted to a front portion of a vehicle body, a transmission case disposed rearwardly of the engine, an HST coupled to a rear wall of the transmission case, the HST having a pump shaft and a motor shaft both projecting forwardly, a charge pump for the HST attached to a front wall of the transmission case, a transmission mechanism disposed inside the transmission case. The transmission mechanism includes an input shaft operably coupling a transmission shaft from the engine to the pump shaft, a first output shaft for transmitting power from the motor shaft to a transmission shaft for the front wheels, a PTO shaft for transmitting power from the input shaft to a transmission shaft for the mower unit, and a second output shaft for transmitting power from the input shaft to the charge pump.

Abstract: The cotton harvester includes a cotton picker housing having at least one plant lifter defining a plant row channel extending back into the housing to a plant compressor sheet. A picker rotor is mounted in the cotton picker housing adjacent to the plant row channel and traverse to the plant compressor sheet. A doffer in the housing near the picker rotor removes picked cotton from the picker rotor and moves the picked cotton to an outlet at the rear of the cotton picker housing. A power unit includes an internal combustion engine mounted on the housing including a rotatable output selectably connectable in rotatably driving relation to the picker rotor and the doffer for imparting rotation thereto. The power unit can also selectably drive at least one wheel of the harvester for moving it over the ground at a speed corresponding to a rotational speed of the picker rotor.

Abstract: A cotton receiver for a cotton harvesting machine and a method of operation of the same. The receiver includes a cotton compacting chamber, a precompacting area above the chamber, and an accumulator deployable upwardly from the precompacting area to increase the cotton holding capacity thereof. Compactor apparatus is located in the compacting chamber and is configured for holding cotton thereabove separate from cotton therebelow. The compactor apparatus is movable downwardly against cotton therebelow for compacting it into a unitary body or module, including while holding cotton thereabove, and is controllably operable for conveying cotton held thereabove downwardly therethrough, subsequent to unloading a completed compacted body of cotton.

Abstract: A leaf vacuum system adapted for mounting to a riding lawn mower. The vacuuming system includes a blower section removably mountable to the mower deck of the mower, a trailer section configured for towing behind the mower, a hitch system for connecting the trailer section to the rear of the mower, and a passage connecting the blower section to the trailer section and through which debris discharged by the mower deck is propelled into the hopper. The blower section has a housing that receives debris discharged from the mower deck and a device for propelling the debris through an outlet of the housing. The hitch system permits pivoting of the trailer section about lateral and fore-aft axes of the mower but not about a vertical axis, such that the trailer section remains aligned with the fore-aft axis of the mower when the mower is turning.

Abstract: The invention relates to a device for fixing blades to plates which are rotationally integral with a rotary shaft and an agricultural machine fitted with said device. The device is characterized in that the flanks of each plate (4) are cut and embodied such that they can receive in an interlocking manner and radially retain a planar additional part acting as a supporting leg (L2) for a blade (L) and in that the end plates (4) are axially and jointedly packed against each other in order to lock the blades (L) to the respective end plates (4). The invention can be used in agricultural machines.

Abstract: A mower blade includes a mid-section, two sharpened, end sections, and a blade longitudinal axis. The mid-section includes a circular, central hole having a relatively large diameter and being centered on the blade longitudinal axis and first and second slots centered on the blade longitudinal axis. Each of the first and second slots are positioned on opposite sides of the central hole. The mid-section also includes first and second circular, side holes positioned off the blade longitudinal axis and on opposite sides of the central hole. Each of the first and second side holes have a diameter that is smaller than the diameter of the central hole. The diameter of the central hole is larger than the width of each of the first and second slots.

Abstract: A cutting device including a gearbox of an upper part, a lower part, and a front piece, the front piece having a thickness greater than the thickness of the upper part. At least one guide bearing is connected to the gearbox by assembly elements. At least one cutting member is connected to the gearbox by the guide bearing, the cutting member being driven in rotation during work about an upwardly directed axis. And, at least one assembly element is anchored in the front piece of increased thickness, attachment of the guide bearing being thus improved.

Abstract: A fruit harvesting machine comprises a harvesting assembly for detaching crop material, comprising fruit and foliage from trees, shrubs and the like standing on said field. A conveyor assembly receives the detached fruit and foliage, together with juice from said fruit, and transports the fruit either directly or indirectly to a container. An extraction fan is installed adjacent a section of said conveyor assembly for separating said foliage from said detached fruit. The conveyor assembly comprises a grate for retaining thereon solid fruit portions and for allowing passage therethrough of said juice and a conveyor for engaging and moving said detached solid fruit portions and foliage along said grate mechanism towards the extraction mechanism. The conveyor assembly further comprises a channel installed below said grate mechanism for receiving said juice.

Abstract: An apparatus for processing nuts and fruits, and more specifically, to a mobile apparatus that picks-up fruits and nuts, and similar products from the ground and conditions them, in bulk. The mobile apparatus conditions the fruits and nuts by removing debris with a combination of a belted conveyor and a high volume fan. The plenum of the apparatus is sized to achieve a constant velocity of air throughout the portions of the plenum in contact with the product, providing a constant suction to prevent the entrainment of product into the dust collection system. The processing apparatus can be utilized in a conditioner that picks-up and processes the product and then returns the cleaned and conditioned product to the floor of the orchard or grove. The processing apparatus can also be utilized in a harvester that picks-up and processes the product and then stores the product temporarily in a bin.

Abstract: The invention concerns a device designed to form a twisted length of yarn incorporating dubbing that can be mounted directly on the shank of the hook. The manipulations are simpler. In particular, the risk of the twist coming undone after forming is avoided.

Abstract: A closing member 1 for compressed air carrying polygonal tubes, which is inserted in a sealing manner into the polygonal tube at one end thereof. The closing member 1 includes an elastic sealing element 3, and the closing member is constructed such that it biases in its inserted state the sealing element 3 in such a manner that it seals and secures the closing member 1 relative to the polygonal tube 8. Closing members of this type are used to seal mounting tubes in yarn spinning machines with pneumatically loaded top roller support and weighting arms.

Abstract: Yarns and fabrics capable of shielding by reflectance the electromagnetic weaves, thanks to their special composition in metallic and textile fibres are described.

Abstract: A yarn withdrawal nozzle for an open-end rotor spinning arrangement is provided which includes a spiral-shaped surface in the yarn deflecting area which extends essentially over the entire yarn deflecting area and designed as a continuous spiral without interruptions. In addition thereto, the nozzle throat of the yarn withdrawal nozzle includes a further surface with structure downstream of the spiral-shaped surface, including rounded notches or curved humps. Both the spiral-shaped surface and the downstream structure are so designed that they are capable of transferring forces to the yarn without damaging same. The yarn withdrawal nozzle is moulded with a mould separation provided in an area downstream of the nozzle throat to facilitate assembly.