Abstract: An apparatus and system for keeping the mortar between blocks uniform in thickness in both a vertical and horizontal direction makes use of a gage member having spacers for placement between the blocks and which are removable as soon as each block in turn has been placed in position with a mortar joint. Each separate gage member has for spacers a set of rods shorter than the thickness of the blocks for separating one block from the next when the mortar is placed between the blocks. A positioning guide on the gage member for engagement with an exposed side wall of the block determines how far the rods will project across the temporarily exposed face of the block. Adjacent the guide is a handle for placing and withdrawing the gage member as the laying of blocks progresses.

Abstract: A wheel alignment gauge comprising a pair of beams, each adapted to be mounted on or located against a different one of a pair of vehicle wheels or axles for such wheels, each of the beams is provided with a pivoted arm at an end of the beam which projects beyond the outer circumference of the wheel and the arms are interconnected by an elastic link, each of said arms is provided with read-out means to give an indication of the angular position of the arm relative to the beams, and thereby of the angular mis-alignment (toe angle) between the plane of rotation of the vehicle wheels or plane of rotation about the axles for the wheels; the read-out means being adjustable relative to the associated pivoted arm in order to allow for the steering angle at which the "toe out on turns" of the wheel is measured and provide an accurate direct reading gauge.

Abstract: Individual sheets, webs drawn from rolls or other substrates coming from a screen printer are dried in an oven in which they are irradiated by one or more lamps moving codirectionally with the substrates but at a lesser speed to establish a predetermined relative velocity. With intermittently advancing substrates the lamps are moved during standstill of the substrate in the reverse direction at the same relative speed as during forward motion. The substrate travel along a horizontal support cooled from below to prevent overheating and may also be subjected to a flow of hot air serving to accelerate drying.

Abstract: A one-piece, washable and sterilizable plastic shoe comprising a lower part with a top on which the foot bears and a bottom enveloping an outsole and a heel, and an upper part having ventilating openings in a substantially vertical lateral area, these openings having upper and lower outer boundary edges that are lower, respectively, than the corresponding upper and lower inner boundary edges thereof. The method for producing such a plastic shoe includes the steps of introducing mouldable plastic into a mould comprising top and bottom halves with a shoe last therebetween and simultaneously forming the lateral ventilating openings by means of spaced pins extending between the bottom-half mould and the last. The apparatus for producing the shoe comprises a mould having top and bottom halves with a shoe last therebetween and a plurality of pins extending from the bottom-half mould into removeable engagement with the shoe last.

Abstract: A shoe or shoe insert is described which provides increased support to specific areas of the foot during the first and second trimesters and third trimester of pregnancy to compensate for changes in body weight and center of gravity which occurs as the term of pregnancy advances. A pad, which can be a shoe insole, is provided with these specific areas of support.

Abstract: A sports shoe or boot having an upper and a shaft or leg plate is provided with a tightening system comprising a tightening member and a pull cord. The pull cord is arranged in turns over the openable closing flaps of the upper and is protected by a covering tongue. A turn of the pull cord is guided out of the area of the covering tongue by means of a slot in the latter and is held on the shaft by means of a tubular guide piece with a cover strap. Placing the turn on the upper part of the covering tongue ensures that no additional fastening means are required for the tongue. The boot can be completely tightened with a single tightening member.

Abstract: This invention provides means for supporting a hydraulic nozzle (of the type utilized, for example, to obtain valuable mineral ores from ocean depths) with a support surface in a manner so that the attitude of the support surface relative to the ocean floor remains constant. The means includes a system of pivotable, parallel levers or supports which interact during pivoting of the support surface to maintain the support surface in the same attitude.

Abstract: An underwater excavator comprising a modular non-metallic cofferdam wherein ater under pressure exits from a plurality of nozzles along at least one side of the base of the cofferdam and a fluid driven eductor driven by pressurized fluid evacuates the suspended solids raised by the pressurized fluid that flows through the nozzles, with a plurality of small barrier nozzles located along one or more horizontal conduits used to sink the cofferdam.

Abstract: A luggage identification tag includes a rigid tube to which an address label is applied and a transparent outer tube covering the label. A nylon strap extends loosely through the inside tube and can be looped through the handle or other part of a luggage item and secured by a buckle. The tube is thus supported at both ends and can freely rotate and slide on the strap to avoid snagging on obstructions. An opaque band half as wide as the tube is long slides along the outer transparent tube and serves to cover part of the label to prevent it from being read at a glance. In a modified form of the invention, a band on the outer tube covers the entire label except for a narrow window which exposes a single line of the label at a time.

Abstract: The panel sign includes one post in the case of a "flag" type sign and two posts for a panel sign supported at opposite ends, together with a generally rectangular panel member. Each post constitutes an extruded member having an elongated vertical slot communicating with a hollow interior. The panel has an edge flange of T-shape receivable in the slot for lateral support by the post. An extruded filler element in turn has a forward portion arranged to fill the slot when the element is inserted in the hollow interior of the post. This element is cut to a length corresponding to the position of the lower end of the panel edge flange and the bottom of the post so that when inserted in the post, it serves to finish off the appearance of the post; that is, it renders the remaining slot portions substantially invisible. A small additional filler element is receivable in the top portion of the post to fill a top exposed portion of the slot where the edge flange of the panel falls below the top of the post.

Abstract: Decorative and ornamental hanging and mounting system for art work, graphics and the like utilizing a fabric base material, a cloth edging material and decorative edge strips together with a decorative hanging means at the upper edge of and a decorative weighted member at the lower end of the base fabric both of which weights are detachably secured to the base fabric.

Abstract: An ammunition magazine package for use in rifles wherein the magazine can be sold as a package fully loaded with ammunition and hermetically sealed. The magazine is constructed so as to be either reusable or disposable after all of its cartridges have been dispensed. The magazine can be made from a plastic material and have at one end a tear-off seal integrally connected at the cartridge dispensing end of the magazine. After the seal is torn-off, the ammunition can be dispensed into a firearm chamber.

Abstract: A barrel extension for a weapon having a barrel internally threaded at its forward end together with various associated devices including a hand grip and a wrench which includes a tubular member having a smooth bore and an externally threaded end portion threadedly engageable with the threaded forward end portion of the weapon barrel with the barrel extension bore aligned with the barrel bore and including a hollow nightstick having an interior forming a storage cavity for the barrel extension, the nightstick having an internally threaded open end portion for threaded engagement with a threaded portion on a closure member to close the storage cavity in order to transport the barrel extension in a concealed manner.

Abstract: A fishing lure retriever is provided having a body portion from which depend a plurality of lengths of chain which are captured in the body of the device by a unique structure, the nature of the chains being inherently such that they tend not to tangle or engage structure other than the hooks of a fishing lure.

Abstract: An aircraft toy adapted to use a gas for providing lift, and comprising a vessel for containing the gas, an eyeloop securely attached to the vessel, and a line having ends securely connected slidably through the eyeloop of the vessel for maintaining control thereof. Also provided are a transporting platform securely attached to the bottom of the vessel, a lightweight object for placement with the transporting platform, a string securely attached to the object and slidably attached to the line for controlling the object, a releasing device for releasing the object from the transporting platform, and a controlled descent device attached to the object. A method is also provided for operating the toy aircraft.

Abstract: A track system includes an accelerator track section having a ferrous metal accelerator rod which attracts a magnetized spinning top and imparts a linear acceleration to the top. Additional coaster and turn track sections provide a selected glide path for the freely moving top. Alternate embodiments of the accelerator track sections include the incorporation of a guide channel, a "T" shaped accelerator strip, a planar accelerator strip, and a dual sided accelerator strip.

Abstract: An apparatus for the detection and recording of the presence of a filament or other small object at a station (13) is described. The apparatus includes light beam detection means (70, 71) and means (14) for rotating the object at the station so that the object interrupts the light beam as it is rotated and is detected and recorded by a counting means (102, 108, 110). The apparatus is particularly useful for the detection of filaments and other small objects which cannot be positioned precisely at the station. The apparatus is specifically useful for detecting roots or shoots (201) resulting from seed (200) germination in a tube (11).

Abstract: A Christmas tree stand which is readily adjustable to straighten a Christmas tree. A ball member which is affixed to the base of a tree is inserted into an opened clamp held by the stand. The tree is adjusted for straightness after which the clamp is locked about the ball member. The clamp may be closed by a foot pedal while the user holds and straightens the tree.

Abstract: A panel for securing in a conventional sliding door opening to cooperate with the sliding doors therein has a swinging door flap at the bottom of a panel defined by vertical stiles which may be trimmed to suit varying door frame heights and which may be adjusted in width in one embodiment by breaking away segments of the stiles. The stiles bear fixed projections to fit horizontal apertures at the door stile and sliding projections to fit aperatures in sill and top rail of the frame. The panel has an adjustable rail which overlaps the weather pane of the panel at top or bottom of the pane. The access door flap swings from an intermediate rail which may be a part of a panel or part of a sub-assembly mountable in any opening. The flap has imbedded magnets to arrest it closed and thin wiper edges to seal against weather, and is self-hinging in the intermediate rail. In one embodiment a vertically movable sill in the bottom rail rises to meet the lower edge of the flap in the closed position.

Abstract: A barrel-type finishing machine provides the fully automatic functions which permit the finishing process such as surface finishing, radiusing, gloss polishing, etc., and other associated operations to be performed for each succeeding cycle of the sequence of those operations. The machine includes a dual barrel structure consisting of an upper stationary container of a cylindrical shape and a lower rotary shallow container of a tray shape which are partly or wholly movable up and down relative to each other; and an annular mass receptacle trough surrounding close to the dual barrel structure and including means for causing the mass receptacle trough to be moved up and down, means for separating the mass into workpieces and abrasive media, means for returning the abrasive media for reuse, and vibration generating means for placing the mass collector conduit under vibration, means may be included for controlling the toroidal flow of the mass inside the dual-barrel structure by producing a centrifugal force.

Abstract: A cylindrical through-feed thread rolling die having a tapered lead-in portion, a cylindrical dwell portion, and a tapered exit portion is disclosed. Such die provides uniform spacing between the crests of the thread forms thereon throughout the lengths of the die. The spacing between the roots of the die is uniform except at the junction between the dwell portion and the two tapered end portions, where a larger spacing exists between the roots of adjacent thread forms. Because the crest spacing on the thread forms of the die is uniformly maintained throughout the length of the die, excessive pressures do not exist at the junction between the dwell portion and the two end tapers, and drunken threads on the workpiece being rolled are virtually eliminated.

Abstract: Apparatus and method is disclosed for abrasively cleaning flanged beams having at least a web and an attached flange. The apparatus includes a carriage mountable on the underside of the flange of the beam to be cleaned, at least one powered wheel rotatably mounted on the underside of the beam flange and articulated structure for varying the angle of attack of a sandblasting nozzle whereby all surfaces of the beam may be sandblasted.

Abstract: Underground storage tank for fluids which has an inner and an outer wall of thermosetting reinforced plastics material and a leak monitoring space between these walls, said space comprising a continuous air and liquid permeable synthetic concrete mixture of a thermosetting resin and compression resistant filling material having no small components, the concrete forming the static load bearing layer of the tank, the dosing of the synthetic resin being such that a sufficient wetting of the surfaces of the filling material particles is achieved for the bonding of the filling material particles with one another while securing the continuous leak monitoring space, and the synthetic resin concrete layer being firmly bonded to the thermosetting plastic of the inner wall and the outer so as to form a homogeneous unit.

Abstract: An improved manhole structure is disclosed which comprises a cover having a rim inclined inwardly at 45.degree., on which a plurality of protrusions are provided; a ring for elevating the cover, having an upright inner wall and outer wall and an upper face and lower face, both inclined inwardly at 45.degree., on the said upper face a plurality of holes are formed for engagement with the protrusions formed on the cover, and on the said lower face a plurality of protrusions are formed; and a base having an upper surface inclined inwardly at 45.degree., and a flat lower face, on the said upper surface a plurality of holes are formed for engagement with the protrusions formed on the lower face of the said ring.

Abstract: A skylight assembly is provided to be mounted to cover an opening in a roof structure. The assembly includes a liner adapted to be mounted adjacent the edge of the opening in the roof structure around the periphery to surround the opening and to form a wall extending upward from the roof structure. An outer dome and an inner dome are provided with the domes spaced and the outer dome overlying the inner dome. Both of the domes engage a sealing gasket positioned on the liner wall. A supporting frame is coupled to the dome and sealing gasket arrangement and the frame and arrangement are hinged to the liner to permit shifting thereof with respect to the liner between a closed position overlying the opening in the roof structure and an open position permitting access to the opening from the exterior of the roof structure. The supporting frame has a U-shaped end portion to receive the peripheral edge portion of the outer dome therein and thereby support the outer dome.

Abstract: A roof construction having at least one roof slope is disclosed wherein at least four Z-purlins are laid across and secured to a number of rafters on the roof slope in a building and the roof deck is then secured on top of the Z-purlins. Tendencies toward Z-purlin roll over failure are counter balanced when at least two of the Z-purlins on the roof slope are oriented to face downwardly of the roof slope and at least two of the Z-purlins on the roof slope are oriented to face upwardly of the roof slope. The downwardly and upwardly oriented Z-purlins may be arranged in pairs of adjacent Z-purlins, each pair comprising one upwardly and one downwardly facing Z-purlin, or so that Z-purlins of one group face upwardly and Z-purlins of the other group face downwardly. The Z-purlins are stabilized by means of stiffeners secured to the purlins at bearing points and by means of tie straps extending between adjacent purlins.

Abstract: A stabilizer for a telescoping cylinder and rod is disclosed. The stabilizer includes a support body which carries a cylinder rod encircling clamp and a bell crank. The support body and bell crank are moved along a support track by operation of the cylinder. As the cylinder structure reaches its full extension, the stabilizer is deployed to clamp and stabilize the cylinder rod and cylinder assembly at a joint generally equidistant the ends of the cylinder and rod assembly. The stabilizer is actuated automatically by the extension of the cylinder and is returned to its initial position as the cylinder is retracted. The telescoping cylinder stabilizer provides support for the elongated cylinder and protects the cylinder and rod from damage due to flexure and bending which might occur were it not for the stabilizer.

Abstract: A window moisture and air flow control device adapted to be removably placed on a windowsill or the like for collecting condensate and permitting the collected condensate to evaporate to the ambient atmosphere. The device further acts to prevent air flow through openings covered by the device when so installed. The device includes a block of liquid-absorbent material and wicking material enclosing the block and extending over substantially the entire outer surface of the block.

Abstract: A bulk material storage bin and a floor structure for such a bin for storing grain or like bulk commodities. The floor structure of the bin has downwardly converging side walls preferrably having a smooth surface. In a preferred embodiment, the floor structure is conical in shape with a downwardly directed apex. As bulk material is emptied from the storage bin, it travels down the side walls of the floor to the apex where it is conveyed outwardly. Piles of residual bulk material are not accumulated along the floor structure.

Abstract: A framing system is disclosed for demountable walls or the like in which the frame member provides a substantially continuous backing surface to engage the back sides of panels along abutting edges thereof. Such frame member is provided with separate locking means at spaced intervals along the backup surface having locking portions which project into the edges of abutting panels to retain the panels against the backing surface. Such locking means are proportioned to fit into kerfs formed in the edges of the panel and are shaped to provide a camming action to press the back sides of the panel into snug engagement with the backup surface. The framing members may be, for example, furring strips formed of metal to secure the wall to a foreign wall, or a stud providing opposed backup surfaces for use in a wall providing panels along both sides thereof.

Abstract: Panels resting in a suspended grid are rendered abuseresistant by mounting two-piece retaining clips atop the runners in the grid. The clip assemblies comprise a torsional/flexural spring mated with a clinch fastener. The spring is a piece of bent music wire having a central U-shaped segment, two opposing legs angling outwardly and downwardly from the upright arms of the U to a level below the cross member of the U. The clinch fastener is a piece of flat spring steel bent into the shape of a U, the bight of the U being a channel connecting two straps, each of which has a keeper at its distal end which turns inward and upward into the space between the two straps. The cross member of the spring fits into the channel of the clinch fastener and the unit is snapped onto the bead atop a grid runner so that the cross member is interposed between the bead and the channel.

Abstract: A plug is used in repairing holes in walls made up of first and second dry wall panels on opposite sides of vertical studs. The plug itself comprises a first body member slidable along a shaft to which a second body member is held on one end. A spring normally biases the body members apart but they can be compressed to a compact configuration for easy insertion in an appropriate cut-out surrounding the hole to be repaired. After the plug bodies have been inserted, the one body is released from its locked position so that the spring will expand the bodies apart. The first body will eclipse the inside of the cut-out in the wall panel to be repaired while the second body seats against the rear surface of the second wall panel to hold the first body in place. Finishing plaster can then cover the front surface of the first body to complete the patching.

Abstract: A construction system including a plurality of construction elements joined by removably received, flexible joining elements which allow for relative motion between adjacent construction elements.

Abstract: An improved shoring frame adapted by a unique design to utilize relatively thin-walled aluminum tubing with a reasonable load-rating, be easily manufactured, and be compatible with existing steel accessories; where the extruded aluminum legs are each generally circular with a longitudinally-extending flattened portion for attaching struts and studs, and preferably having at least two internal ribs, circumferentially symmetrically-spaced relative to said flattened portion axially to contain accessories such as existing jack screws, extension legs, U-head fixtures, and the like.

Abstract: A trim strip assembly attached to a substrate body including an elongated rigid member fastened to the substrate body and having a terminal end with upturned spaced tabs. A trim strip is secured to the rigid member and has two parallel longitudinal downwardly curved elongated areas and a terminal end. An end cap is attached to the rigid member and trim strip and has a forward terminal end, a top wall, and a rear wall the bottom edge of which abuts the end of the rigid member. The end cap has two spaced flat resilient legs projecting from the rear wall and their forward ends extending beyond the forward terminal end and each leg is in contact with a respective longitudinal downwardly curved elongated area of the trim strip. The legs are spaced from the top wall of the end cap to allow insertion under the terminal end of the trim strip and each leg lies in a plane that bisects the other and at the same acute angle relative to the horizontal plane.

Abstract: A section constituting an outer longitudinal element or moulding of a false ceiling or false wall, is constituted substantially by an angle of which the vertical flange is applied against a wall and the horizontal flange presents a shoulder extending towards the vertical flange to ensure fastening of a hook-shaped edging fast with a sheet of plastics material or cloth maintained stretched by the section.The horizontal shoulder defines, with the horizontal flange, a groove whose cross section is in the form of a U open towards the vertical flange. A cant provided in the angle constituting the section joins the horizontal flange inside the U-groove so as to define, between this cant and the shoulder, a narrow passage of width slightly larger than the thickness of the part of the edging which is engaged in the U-groove.

Abstract: A method of constructing a multi-storey building comprises the steps of laying a foundation ring beam for the external walls of the building, erecting a plurality of ground floor columns around the foundation ring beam, the ground floor columns being supported by the foundation ring beam and extending over substantially the height of the ground floor of the building, placing panels between the adjacent pairs of ground floor columns to form the external walls of the ground floor storey of the building, and constructing the higher storeys of the building successively one upon another.

Abstract: A sweet wrapping machine includes a continuously rotating feed disc (12) having regularly pitched sweet-receiving pockets (13), a continuously rotating wrapping wheel (44) having pockets (43) spaced at a greater pitch than the pockets in the feed disc, and a continuously rotating transfer wheel (16) including pockets (15) which receive the sweets from the pockets in the feed disc and transfer them to the pockets of the wrapping wheel. The pockets (15) are on the ends of arms (25) which are shifted during rotation of the transfer wheel from a spacing conforming to the pockets in the feed disc to a spacing conforming to the pockets of the wrapping wheel.

Abstract: A case packer for packing bottles from an upright position to a necks down or upside down position in a case. A grid is provided for marshalling upright bottles and a conveyor is provided for bringing a case, to be packed, under the grid. A rotator, located between the grid and case, is adapted to receive a pattern of bottles from the grid, rotate the bottles to invert them, and then deposit the bottles into the case. Gripping devices are located above the grid to grasp the tops of the bottles on the grid and push them into the rotator. After a first pattern of bottles has been inserted into the rotator and held there by a frictional arresting device, the second set of bottles forces the first set through the rotator and into the case.

Abstract: A method and apparatus for producing liquid impregnated fabric wipes and packaging the wipes in a container. Fabric material in sheet form is initially passed through a folder to fold the side edge of the sheet, and the folded sheet then travels over a pair of liquid impregnating tubes where liquid is discharged from slots in the tubes against opposite faces of the folded sheet material. After impregnation with the liquid, several sheets are placed together in superimposed form and cut into short lengths to form wipes. The wipes are supported along their side edges by two pair of cooperating endless conveyor belts and as the wipes move along the conveyor, a reciprocating platen moves downwardly between the spaced belts to eject the wipes from the belts and pack the wipes into a container.

Abstract: The invention relates to a process and to apparatus for packing fibrous material in bales of high density, the material being pressed together in a final press and then being moved, together with the press-ram end piece and bottom plate, while still standing under pressure, out of the press compartment to further working positions where it is packed and reinforced.The invention enables the bales to be packed outside the press compartment which can be already fed, during the packing operation, with new material to be pressed.

Abstract: The method provides a loose wrap on an article. A sheet of thin, flexible wrapping material is positioned around the article. A projecting flexible excess portion is formed as an outwardly projecting bubble in the wrapping material that is positioned around the article. The wrapping material is then sealed around the article while the bubble portion is maintained in the wrapping material. The apparatus comprises various mechanisms for effecting the method steps. The assembly is particularly useful in a wrapping machine. The combination used in conjunction with a wrapping machine includes a pocket mechanism for holding the article having the thin, flexible material wrapped therearound. The projecting bubble portion is formed by an assembly disposed adjacent the pocket mechanism. The pocket mechanism includes a side wall member having an indentation to receive the projecting bubble portion formed in the wrapping material.

Abstract: A semi-automated apparatus and method for filling a basket with loose, fresh spinach and ice, compacting the spinach into the volume of the basket and retaining the spinach within the basket until a cover is secured thereon. The spinach and ice are gravity fed through a hopper and hollow, cylindrical guide, and a plunger is lowered through the guide to compress the spinach into an open basket directly below. The plunger face is grooved to accommodate a plurality of rods which are axially (longitudinally) advanced through the grooves and serve to hold the spinach in the basket as the plunger is retracted. The filled basket, with the retaining rods in place, is moved to a position laterally of the guide and a cover is secured in the usual manner by placing the wire basket handles over tabs extending from the circular cover. The rods are then axially retracted from between the spinach and basket cover.

Abstract: A sugar cane harvester having at its front end a topper section for cutting off the tops of the cane stalks and upper and lower sets of cane gathering arms which gather up the cane and bring it into the harvester for harvesting at its base and topping at its top. The topper section is carried on a vertically moveable base riding on vertical tracks for varying the height of the topping cuts, to which base is also pivotally connected the harvester ends of the upper set of cane gathering arms, thus interconnecting the topper cutter entry or harvester ends of the upper arms and the topper section for combined movement together. Variable length, telescoping bracing arms are pivotally connected between the left, upper and lower arms and the right, upper and lower arms, respectively, to provide stabilizing bracing to the upper sets of arms when they are vertically varied with the topper section.

Abstract: Method for joining an upper thread with a lower thread, which includes moving at least one thread regulator from a thread receiving position to a thread delivery position, inserting the threads with the at least one thread regulator into a longitudinal groove formed in a splicing chamber, automatically admitting compressed air laterally into the splicing chamber for splicing the threads, automatically separating the ends of the upper and lower threads and blowing compressed air into the splicing chamber in dependence on the position of the at least one thread regulator, separating the threads to form new shorter thread ends, sucking up the newly-formed shorter thread ends with an air stream, and securing the newly-formed shorter thread ends and device for performing the method.

Abstract: A telecommunication cable, and method of making same, is disclosed comprised of more than five S-Z twisted wire pairs having their twist reversals longitudinally staggered in a repetitive sequence of 1 to N longitudinally spaced positions. The wire pairs are bundled with any adjacent pairs having their twist reversals non-overlapped and staggered by no more than N/2 positions which limits S to Z coupling.

Abstract: A steel cord for the reinforcement of elastomer material. comprising two equivalent wire groups of at least two wires each, the wire groups being twisted around each other, in which the wires of the first group are parallel or nearly parallel, and the wires of the second group are twisted around each other with a twist pitch of the same sense and the same value as the twist pitch with which the two groups are twisted together.

Abstract: A bulky, tangled, twisted singles yarn is provided having good bulk and aesthetics. The yarn also has exceptional column strength and resistance of bending and untwisting. The yarn is particularly useful as a sweater yarn or half-hose yarn. The yarn is produced by passing twisted singles yarn having latent bulk through a chamber wherein the yarn is tangled and heated by means of a heated fluid such as superheated steam.

Abstract: A bulky, heatset, tangled, twisted singles carpet yarn is provided having exceptional column strength and resistance to bending and untwisting. Cut pile produced therefrom has excellent tuft rigidity and endpoint definition. The yarn is produced by passing a bulked, twisted singles yarn through a chamber wherein the yarn is tangled and heatset with a heated fluid such as steam.

Abstract: The invention relates to a method of and a system for controlling the operation of open-end spinning machines comprising a plurality of spinning units, which method is based upon a permanent cyclic communication of a central unit of the system with the individual spinning units. According to the invention, at a given instant, a single spinning unit only is connected to the central unit of the control system, said central unit being supplied with information data about the condition of the spinning unit connected thereto while said central unit simultaneously transmits instructions for said spinning unit, the other spinning units operating automatically on the basis of the stored instruction the validity of which lasts for the time of one control cycle.