Abstract: This invention relates to a spot-cultivation system. In particular, it is envisaged that the spot-cultivation system will be most commonly used in situations where a defined area of ground is required to be prepared prior to the planting of individual seedling trees. According to one aspect of the present invention there is provided a spot-cultivation system including an accessory (1) for spot-cultivation, attachment apparatus capable of attaching the accessory to a vehicle, and at least two ground-working devices (4, 5) held in a fixed relationship to each other so that the area of ground worked by the devices is defined by the fixed relationship.

Abstract: A hooping apparatus and method for accurately orienting and hooping material to be embroidered. The apparatus preferably includes two plates connected in facing relationship by at least one U-shaped connector, and at least one support leg adjustable to support the apparatus in at least two positions. Both plates are preferably provided with a grid of fastener holes for attaching hoops and/or hoop brackets via fasteners to either plate. One plate is preferably rectangular and has a shoulder form which can be removable to change its orientation upon the first plate. The other plate is preferably U-shaped with two substantially flat elongated legs. The apparatus can preferably be placed in at least four positions: a first position in which the support leg is not used and in which the plates are only slightly reclined for draping garments such as jackets, shirts, vests, etc.

Abstract: A clear plastic, PLEXIGLAS.RTM. or other suitable, clear, "unbreakable" lens may be either hingedly opened from and closed to or otherwise removed from and replaced in laminar relationship with respect to a refrigerator/freezer door. Adhesive, magnetic or other suitable fastening material are used to fix display items to the lens or door. When the lens closes over the items a visually pleasing frame protects the displayed items and allows for easy removal and substitution. In one embodiment, the lens is hinged to one side of a freezer door on an upright, top-freezer refrigerator. In a second embodiment, lenses are hinged to the outside edges and latched on the inside edges of both doors of an upright, side-by-side double-door refrigerator/freezer combination. In either embodiment, the lens can be inset into the door so as to provide surfaces on the same planes as those of the remainder of the door.

Abstract: A multi-layer, multi-web, laser printable, page-sized form with an identification band blank comprises a multi-layered web die cut with a first paper label portion for receiving a printed image and an adhesive backed transparent film layer approximately twice the width of the paper layer so that upon separation from a carrier, the transparent film may be folded over and completely encapsulate the paper layer to moisture proof it and protect it. The transparent film layer includes a pair of adhesive backed tabs at the ends to facilitate its attachment about a patient's wrist or ankle. The band blank web is joined to a second multi-layer web with an overlapping glued joint, the second multi-layer web having a plurality of adhesive backed labels die cut into it.

Abstract: A reel seat for a fishing rod includes a hollow tubular body having attached first and second cylindrical foot holders for detachably securing a reel foot thereto. The first cylindrical foot holder is slidably engageable with a threaded end on the tubular body and includes an interior surface having a first arcuate region for receiving a leg of a reel foot having a first size and a second arcuate region for receiving a leg of a reel foot having a second size that is different from the first size. The first foot holder is linearly and rotatably adjustable so as to allow either the first or second arcuate region to be aligned with the second cylindrical foot holder, which is separately and fixedly mounted to the hollow tubular body and has an interior surface capable of receiving the remaining leg of the reel foot of either size.

Abstract: A fishing rod handle extension for attachment to the butt end of a fishing rod handle having a generally rectilinear front segment, a generally rectilinear rear segment and an elongated middle segment that is joined at an angle to the front and rear segments with each of the segments lying generally in the same plane. A front segment has a first end for attachment to the butt end of a fishing rod handle.

Abstract: A line guide ring enhancing casting controllability of a fishing rod wherein the dimension between the inner circumferential surface of an annular holder frame for holding a guide ring and the bottom surface of the mounting leg being kept at a minimum and substantially the same as the plate thickness of a metal plate; the annular holder frame 3 for holding the guide ring 7 through which the fishing line being caused to pass and the mounting leg 4 for mounting the holder frame 3 onto the fishing rod being integrally formed from a single metal plate; the part on the outer circumferential side of the holder frame 3 being bent from a position close to its inner circumferential surface 5 in the axial direction so that the holder frame 3 may be formed into a shallow concave shape; the outer circumferential surface being formed into a rear surface 6 facing substantially in the same direction as the axial direction, and the mounting leg 4 extending from the rear surface 6.

Abstract: In order to facilitate the removal of the line entanglement, a frame is slanted and a guide ring member is formed into an oblong shape, however, if the guide ring member is oblong, a size of a guide ring member is increased, inversely, if a thickness of the guide ring member is decreased as a whole, a radius of curvature at side end portions of an inner circumferential surface of the guide ring member is decreased, the sliding resistance is increased depending upon an angle of the fishing line. Accordingly, a thickness t on the right and left of both side portions 4b extending in a straight line of the oblong guide ring member 4 is smaller than a thickness T of other portions 4a, the contact angle of the fishing line 10 to these portions 4b is kept almost unchanged, thus, there is no adverse affect against the sliding resistance even if these portions 4b are thinned.

Abstract: A fish lure having hollow porcupine guard hair affixed to the shank of the hook

Abstract: An ice cooler for storing and refrigerating caught fish has a removable top lid provided with an insert having separated teeth to seal the lid and thereby the cooler. The teeth retentively engage the body of a hooked fish disposed tail-first therewith preparatory to the fish being unhooked by a fisherman for the fish's own downward movement through the engaging teeth and into the cooler by the fish's own force of gravity. The teeth have their own memory to spring-back to re-seal and close the lid upon cessation of physical contact with the fish.

Abstract: An adhesive insect trapping device having an elongated handle being fixedly attached to a flat plate member whereon a sheet of adhesive material is attached is disclosed. The plate member includes a foldable cover member being hingeably attached thereto so as to be secured in coplanar relation in an open position of the device. In the open position a sheet of adhesive material is arranged thereon to allow an insect to be adhesively captured on the device. The plate and cover members are foldable to a closed position wherein the adhesive sheet is folded 180.degree. onto itself thereby entrapping the insect in an envelope formed from the adhesive sheet material for disposal. In one embodiment the insect trapping device is manually folded to contain the captured insect. In an alternative embodiment the insect trapping device is automatically folded by a trigger actuated spring mechanism which folds the device to capture the insect.

Abstract: A plant greenhouse frost protector and growth enhancer for use with seedlings or young plants. The protector is frusto-conically shaped and made of a light transparent, semi-transparent or translucent transmitting plastic material. The protector's base has a series of ground engaging serrations with adjacent spaced slots. Prior to forming tabs, base slots normally extend upwardly towards the protector's top edge. Normally serrations hold the protector to the ground by the serrations in low wind conditions. In high wind conditions, tabs are formed by folding the base's areas between the slots outwardly and upwardly. These formed tabs form ground engaging surfaces parallel to the ground. The top edge of the protector is covered by a convex raised center top surface with slots that permit access to the interior formed cavity to water or ventilate the enclosed seedlings or plant.

Abstract: A memorial vase comprises a container, a liner insert, a drain plug, a base, and a bolt and nut for securing the container to the base so the container can swivel with respect to the base. An adhesive gasket can be used to secure the base to a surface. An alternate embodiment uses a base that can be attached to a wall surface wherein the base has a shelf with an aperture for holding an alternate container with a flanged rim that is an assist for removal of the alternate container from the shelf.

Abstract: There is disclosed an improved poppy straw of a stably reproducing Papaver somniferum for the extraction of thebaine and/or oripavine, the threshed straw having thebaine and oripavine constituting about 50% by weight or greater of the alkaloid combination consisting of morphine, codeine, thebaine and oripavine.

Abstract: An automatic sprinkling device for a bean sprout culture box assembly including a base box and a stacked culture boxes. The device includes a pump mounted on the base box which pumps water from the base box to the top culture box. The device includes a pump actuating circuit that actuates the pump, a transistor having a base and a collector, and a relay having a first end connected to the collector of the transistor and a second end connected to the pump. A microprocessor having an output is connected to the base of the transistor. A data setting unit is connected to an input of the microprocessor and arranged to input data into the microprocessor. A display unit is connected to the output of the microprocessor and displays data generated by the data setting unit. A memory device is connected to the microprocessor and is arranged to store data set by the data setting unit.

Abstract: A plant container which includes a plant-stake fixing device, wherein the plant container in the region of its rim is provided with at least two coupling components rigidly connected with the side-wall of the plant container. The plant-stake fixing device is provided at least on one end with a mating coupling component and, at a distance from the mating coupling component, with at least one retaining component serving as a holder for a plant stake. The plant-stake fixing device is provided with two mating coupling components arranged at a predetermined distance and in the region of the rim of the plant container there are provided at least two coupling components arranged in correspondence with the mating coupling components and at a distance from each other.

Abstract: A bulb and root protection system for allowing bulbs and rooted plants to be planted in the ground and protected from small burrowing animals. A protection cage has a top edge, and encloses a volume. The protection cage is open at the top edge. The protection cage is placed in the soil up to the top edge wherein bulbs or rooted plants are placed inside an interior volume of the protection cage, and the protection cage is filled with soil. Small animals are prevented from reaching the bulb or planted roots by the protection cage, but roots growing from the bulb or plants can grow and penetrate the mesh of the protection cage. The bulb and plant root protection system is additionally provided with a flexible liner provided within the interior volume. A dual purpose stabilizing strut is also provided with the plant root and bulb protection system, the strut comprising an anchor portion and a water dispensing portion for dispensing water below the surface of the ground to the plants roots or the bulb.

Abstract: A door controlling device for opening and closing a door in a wall has a first arm, one end of which is mounted to the wall and the other end of which is pivotally attached to the second end of a second arm. The first end of the second arm is pivotally attached to the top of a door and is adapted for rotation about a horizontal axis at the first end thereof. An electric motor attached to the device has a shaft which drives a gear train, and an output shaft of the gear train is connected to the input end of an electrically operated clutch. The output shaft of the clutch is connected to the first end of one of the arms such that upon the simultaneous engagement of the clutch and the energizing of the motor, that arm will be rotated about the horizontal axis at the first end and will cause the door to be opened or closed.

Abstract: An assembled basement window for insertion in a building form into which concrete will be poured around the window. The window will have an outer frame fabricated form pieces cut to length from a common extrusion. A header and jambs will be cut to length from a common extrusion. The header and jambs and a sill are assembled into the outer frame so as to form an inner window frame into which the window sashes can be removably inserted. The components of the inner frame can be removably inserted into the outer frame in different orientations. If the window as assembled is placed in a form upside down or inside out, the sashes and inner frame can be removed and reoriented without having to remove the outer frame.

Abstract: A cover arrangement for roof gutters is provided. The cover arrangement includes a plurality of cover segments each of which includes an elongate hinge pin having a mounting plate thereon and pivotal gutter cover segment thereon. Preferred configurations, sizes and overlap patterns for adjacent cover segments are provided. Also an assembly comprising a roof, roof gutter and cover arrangement is provided. Methods of assembly and use are also described.

Abstract: A space-saving, single-cylinder, room extender, this invention consists of a hydraulic cylinder, electrically powered screw auger or other electrically powered means is nested within an inner structural member that is, in turn, telescopically nested within an central beam. Further, the nested structural members form an integral part of the structure of the expandable room being embedded within the floor of the room, or being embedded within the structural frame of an accessory within the room. Low friction shims hold the inner structural member within the central beam such that lateral motion is minimized while the telescopic motion of central beam relative to the inner structural member is smooth.

Abstract: A concrete wall panel for tilt-up construction provides polymeric peripheral elements defining panel and orifice edges and medial fastening strips extending in the panel between the peripheral elements, all of which remain as part of the finished panel to accept traditional self-penetrating nail, screw and staple fasteners historically used in wood construction. The peripheral elements are of solid configuration to provide a form for pouring plastic concrete that forms the panel embodying them. The fastening strips extend through the panel between opposed panel surfaces and are formed by two initially releasably interconnected elements defining voids therebetween to allow thickness adjustment and convenient placement and support of structural components within the panel. The fastening strips define spaced areas to receive traditional wood fasteners and may carry index strips on opposed exposed surfaces to visually indicate strip location and fastening areas.

Abstract: The invention concerns a stair construction element comprising a horizontal tread part and a nosing-like riser part extending vertically therefrom, for renovating a stair, in which a tread part (2) and a nosing-like riser part (3) form an integral element (1) encased or coated with laminate (4).

Abstract: Roof curb structures include side shells made by cutting a series of transversely aligned V-shaped notches and straight slots along top and bottom edges of a continuous length of sheet metal strip material at spaced apart intervals corresponding to the length of each side of the side shells to be formed therefrom. Then the strip material is cut to length corresponding to the length of one, two or four sides of the side shells and the top and bottom edges are roll formed in opposite directions to form oppositely extending top and bottom flanges.

Abstract: A corner bracket used with a window or sliding glass door assembly to form a corner joint connecting frame members together which hold the glass and weather insulation in place. The corner bracket includes a body which has a front side and a back side connected by a connecting wall. The corner body includes a first end and a second end, where the second end is oriented approximately normal to the first end. The first and second ends include a pair of channels, a pair of L-shaped members spaced from the channels, and a finger extending from the connecting wall. The corner can also include a groove portion which engages a securing wall for the window. The corner can also include a protrusion which engages a weather insulation strip. The channels are detachably received by slots in a frame member. The L-shaped members and the finger are detachably received by openings in the frame member.

Abstract: A kit for the installation of a window in a sash (26) IS in the form of a casing having the same surface area as the window and which is installed in sliding manner in a lateral bay window of an airplane cockpit. The kit includes a laminated sheet of glass (10) having at least two sheets of structural glass (12, 14) which are connected to one another by an intermediate layer (16) made of transparent plastic, a joint (22) made of elastomer which is used to cover the side and edge of the sheets of structural glass, and a retaining section (34) in the shape of a casing having the same surface area as the sash. The section is provided with a first wing which is to be bolted to the sash and a second wing capable of securing a peripheral edge of the sheets of structural glass against the sash, and at least one series of bolts (46, 48) used to secure the retaining section on the sash.

Abstract: An integrated prefabricated furniture system is provided for fitting-out a building space of the type having a generally open plan interior defined by fixed walls. The furniture system includes a wall-covering frame, freestanding partition frames, and floor-to-ceiling frames that can be interconnected to subdivide the building space. The wall-covering frame is constructed to be positioned against and selectively cover portions of the fixed walls, and the portable partition system and the floor-to-ceiling frames are constructed to spatially divide the building space into a plurality of work areas, with at least one of the freestanding partition frames having an end abutted against the wall-covering frame. A plurality of cover panels is removably attached to the wall-covering frame and to the freestanding partition frames for covering the wall-covering frame, the freestanding partition frames, and the floor-to-ceiling frames.

Abstract: The invention is an assembly for providing insulation. An assembly which provides ventilation in accordance with the invention includes a planar element; insulation positioned proximate to the planar element; and at least one space element, each space element being positioned between the planar element and the insulation, the space element including two parallel straight plate members and at least one distance member which interconnects the two parallel straight plate members which respectively face the planar element and the insulation, each distance member including two spaced apart bendable sections attached to zones of attachment to the plate members and a displacement part connected to the bendable sections and defining an angle (.alpha.) with one plate member with the angle (.alpha.

Abstract: This invention is directed to an insulated layer of concrete including a plurality of closed cell plastic foam insulating blocks and a layer of concrete covering the blocks. Each block includes a plurality of sides, with each side having a length of between approximately six inches and two feet.

Abstract: A straight-sawn shake (10) for roof and wall cladding is described. The shake (10) is comprised of a flat wooden board piece (11) of substantially predetermined thickness throughout. The wooden board piece (11) has opposed flat, substantially parallel, sawn surfaces (12,12') and parallel straight side sawn edges (13,13') and at least a straight sawn transverse rear end edge (14). The front end edge (14') may be a straight end edge or may have a decorative design. The board piece (11) is cut from a raw log piece (32) of predetermined length in block form (31). The method of fabricating the straight-sawn shake (10) and the apparatus (25) is also described.

Abstract: In a connecting element for multiple-sided, in particular three-sided lattice girders made of fibre composite material, tubes (6, 7, 8, 9) are provided and arranged so that one of these is in the centre and the others are evenly distributed around this tube receiving or forming a central member, are held together by a fibre ring winding (12) and held apart by a disc (16) provided in the central tube (6).

Abstract: A frame member for a panel door such as used in bifold door installation is roll formed from a metal strip to provide a generally E-shaped cross-section having a side member with front, middle and rear limbs extending generally perpendicularly from the side member; the strip defining successively from edge to edge the rear limb, the side member, an outer layer of the front limb, a retroverted inner layer of the front limb, an inner layer of the side member extending between the front and middle limbs, and the center limb, an edge of the strip being retroverted to provide a double thickness through a distal portion of the middle limb, an inner portion of the middle limb being inclined towards the front limb as it extends from the side member towards a panel contact zone on that side of the middle limb facing the front member, and the distal portion being inclined away from the front member as it extends beyond the contact zone, the inner and distal ends of the middle limb being spaced from the front limb by a

Abstract: The reinforcing brace frame is utilized in building walls as a complete system of protection against both the severe shear stress and uplifting encountered during tornados, hurricanes and earthquakes. The reinforcing brace frame includes two vertically-spaced horizontally extending frame members joined at their opposite ends to two horizontally-spaced vertically extending frame members, and a diagonal member rigidly connected to opposite ends of the horizontally extending frame members. The reinforcing brace frame can also include spaced vertical support members between the vertical frame members. The reinforcing brace frame is directly attached to a concrete foundation by shear bolts and hold down bolts. Consequently, the reinforcing brace frame provides increased resistance against simultaneous shear stress and uplifting, eliminating the need for plywood shear panels.

Abstract: A method for using a foam condensation board system in a building according to one embodiment comprises the steps of: providing a foam condensation board system, providing a building having a roof and a roof supporting structure, and installing the foam condensation board system to the roof supporting structure. The foam condensation board system comprises at least a first layer, a second layer, a third layer, a fourth layer, and a fifth layer. The first layer is made from a material selected from the group consisting of alkenyl aromatic polymers, polyolefins, polyethylene terephthalate, polyesters, and combinations thereof. The second and fourth layers are independently made from a material selected from the group consisting of alkenyl aromatic polymers, polyolefins, polyethylene terephthalate, adhesives, and combinations thereof. The third layer is made from a material selected from the group consisting of alkenyl aromatic polymers, polyethylene terephthalate, and combinations thereof.

Abstract: A modular building is constructed at a module construction area using pre-made component parts that are produced at a component production area. The pre-made component parts are measured, cut and drilled at the component production area and supplied to a module maker at the module construction area so that the module maker assembles the modules without measuring, cutting or drilling the component parts. The module maker uses a plurality of jigs to assemble the modules. The jigs remain attached to the modules during transport to a building site and are removed from the modules prior to the modules being positioned on the foundation.

Abstract: A packing apparatus for packing bags in packaging containers, the apparatus comprising a conveying means for the packaging containers, an endless transportation means including receiving chambers in which respective groups of sheet bags are transported that are to form a partial filling in the packaging containers, and at least two discharge stations in which the bags corresponding to one partial filling are respectively discharged into the packaging containers at the same time, and to a corresponding method. The conveying means can transport at least two packaging containers side by side and the endless transportation means is provided in the area of the discharge stations with straight discharge sections in which at least two discharge stations are respectively arranged side by side.

Abstract: A box or carton sealer is disclosed having a frame with a conveyor for moving boxes therethrough. First and second longitudinal, laterally spaced-apart, independent gravity operated centering bars move inwardly and outwardly to center the boxes in the sealer. The centering force produced by the centering bars is proportional to the distance the box is off center in the sealer. A shiftable weight assists the respective centering bars to move laterally as required. A floating head has an inclined entry ramp for riding up over the box and lifting the floating head to a desired height as the box passes thereunder. The floating head has a sealing device for attaching the box flaps at whatever height the flaps happen to be at under the floating head.

Abstract: Process and device for packaging foodstuffs having a recess, such as meats and sausages and gutted poultry, in which a previously sealed tubular section is taken through the aperture by means of an insertion pin, whereafter one end of the tubular section is turned back around the hollow body towards the other end in order to fully encase the foodstuff.

Abstract: A package of a continuous strip of material includes a plurality of parallel side by side stacks each containing a length of the strip which is folded back and forth such that each folded portion of the stack is folded relative to the next portion about a line transverse to the strip and such that the side edges of the strip portions are aligned. The strip is continuous through each stack and is connected by a splice from the end of one stack to beginning of the next stack. The package is compressed to reduce the height of the stacks and maintained in the compressed condition by an evacuated sealed bag. The fold lines in the package are marked by a machine readable marking so that the strip portions from the package can be cut into strip elements with the cut lines being arranged at the fold lines.

Abstract: The present invention is directed to a method of packaging thermoplastic compositions. Preferably, the steps of the method may be employed in a continuous process. The method is especially suited for thermoplastic compositions such as pressure sensitive hot melt adhesives. The pressure sensitive thermoplastic composition may be packaged in an inclusion meltable film material wherein the film can be melted and blended with the hot melt adhesive during use, or alternatively, the composition may be contained in a drum. Alternatively the thermoplastic composition may be coated with a pelletizing aid.

Abstract: A protective wrapping for a vehicle seat includes a separate protective wrapping for the backrest cushion and a separate protective wrapping for the seat cushion. The backrest cushion wrapping includes a protective bag that loosely encloses the backrest cushion from above on all sides the backrest cushion to the level of the seat surface. By means of a closing tongue that reaches around the backrest underside from the front to the rear, the protective bag is fixed on the backrest cushion. The seat cushion wrapping includes a protective hood that encloses the seat cushion from above on all sides. The sides are gathered in a circular manner, particularly shrunk, below the seat cushion, so that the seat cushion wrapping rests under pre-stress laterally on the seat cushion.

Abstract: A packaging container production method for forming tubular web from sheet-like web and producing hexahedral packaging containers, wherein in order to secure a prescribed web W feeding amount, the operating amount of lug folding flaps, which forms a sealing part on tubular web by pressing both sides of the tubular web while folding the same, is set an idealistic position, pressure is generated at a cylinder 16 by a control device 23 via a control valve 31, in compliance with the deviation of the detection mark such as a specified printing pattern on the printing surface on web W from the reference position when the same is detected, and the tension applied onto web W is adjusted by the dancer roller 9.

Abstract: A packaging material comprising a plurality of cushioning members for cushioning an article in a container is provided. The cushioning members being formed by crumpling a flexible sheet of material into a globular configuration having a plurality of random folds, a plurality of random engaged portions, and a plurality of voids. The sheet of material has an upper surface and a lower surface with at least one of the upper surface and the lower surface having a bonding material disposed thereon such that at least a portion of the engaged portions are bondably connected thereby increasing the resiliency of the folds.

Abstract: An automatic packaging machine for packaging products into packs comprises: a wrapper forming line along which there is a succession of at least three operating stations positioned above a sliding surface along which the products are fed with a stepping motion by mobile pusher elements. The forming line co-operates with a lift located below the product sliding surface and vertically and alternately mobile between a lowered level, at which it receives products on its loading table, and a raised level, at which it places the products on the sliding surface of the forming line, feeding them between the pusher elements with a sheet of wrapping material laid on top of the products. The machine comprises adjustment means for a product feed line, the wrapper forming line, the operating stations and the pusher elements.

Abstract: An equine saddle pad for use in direct contact with the animal's hide and hair is constructed from a mat of piled polymer filaments extruded into an elongated continuity of about 1/2 inch thickness having 65% to 80% void volume within a thermally bonded matrix of approximately 10 mil to 30 mil diameter filaments. In one alternative embodiment of the invention, a hinge band of reduced thickness and void volume is heat formed along the pad center to divide the pad into two substantially symmetric leaves. Another alternative embodiment comprises a unitized overlay of the polymer filament pad by a dissimilar material such as neoprene foam, felt, woven nylon, woven or knitted polyester, cotton, wool or linen.

Abstract: An electrohydraulic steering system for machines includes manual steering and automatic steering (autopilot) modes which can be activated by a switch (3). The system has a hydraulic steering cylinder (6) for displacement of the steerable wheels, at least one sensor (7) for determining the wheel angle actual values (.delta..sub.w), at least one electrically operated hydraulic control valve (5) which regulates admission of hydraulic fluid to the steering cylinder (6) and at least one automatic steering signal transmitter (2) for generating electrical steering signal nominal values (.delta..sub.s2) for the wheel angles. An electronic control and analysis device (4) is fed the automatically generated steering signal nominal values (.delta..sub.s2) and the wheel angle actual values (.delta..sub.w). The control and analysis device (4) determines an electrical trigger signal (4S) for the hydraulic control valve (5) from the wheel angle actual value (.delta..sub.

Abstract: A device is secured to the deck of a multi-blade rotary mower at a location forwardly of the blades in relation to the direction the mower moves as vegetation in being cut. The device deflects the grass laterally into the cutting paths of the rotating blades.

Abstract: A hard facing for an agricultural machine blade which contains hard particles of 40 to 100 .mu.m in particle size and a hardness of greater than 1400 HV in a matrix with hardness of 500 to 800 HV.

Abstract: A method is disclosed for spinning polyester staple to produce dark dyeing yarns as compared to yarns having an otherwise similar composition. The method includes spinning polyester staple into yarn, in which the polyester includes between about 0.5 and 4 percent by weight of polyethylene glycol, into yarn in a rotor spinning machine at a rotor speed of between about 110,000 and 120,000 rpm and at a tension of between about 2.5 and 3.2 grams/tex. A resulting polyester fiber is also disclosed of between about 1.2 and 2.25 denier per filament, and that contains between about 0.5 and 4 percent by weight of polyethylene glycol, and with a fiber tenacity of 4.7 grams per denier or less.

Abstract: An opening device for an open-end spinning aggregate has a housing which takes up an opening roller. The housing includes a base plate arranged perpendicular to the axis of the opening roller. The base plate is covered by a flat metal sheet, which is provided with an anti-adhesive coating. The anti-adhesive coating is preferably a ceramic layer shot through with PTFE.