Abstract: A multi-layered puzzle toy wherein each layer has a plurality of elements confined within a uniform ovoid peripheral contour, with elements being interchangeable and reversibly interchangeable with other elements in the same layer and other layers. The elements of each layer have contrasting opposite surfaces so that within a given layer elements may be reversed to fit in corresponding area portions that provide contrast in the appearance of the layer when filled with its elements. Within the ovoid contour are elements capable of forming a contrasting nose, mouth, and eyes of a stylized face with there being a sufficient multiplicity of elements in the region of the nose, mouth, and eyes to allow at least one of these facial features to be changed in position or shape to permit variations in the facial expression depicted.

Abstract: A manually operable amusement device consists of a combination of a doll having an inflatable portion, a manually operable inflation means and a separable enclosure in which the doll is disposed. The enclosure has releasable engagement means which are engaged when the doll is uninflated but which are disengaged when the doll is inflated to thereby permit the doll to be removed from the enclosure means. An air release valve is provided in the doll, advantageously in the mouth portion, so that when the doll head is digitally squeezed, the air is released and the doll is deflated. The enclosure means can simulate various types of enclosures, such as a cage, a boulder, a coffin, or the like.

Abstract: A simple fluid actuated vehicle is described in the shape of a hollow hand which, by remote bulb pressure, precesses along a given route by means of advancing digits.

Abstract: A fabric-sewn doll, stuffed with polyester stuffing, and including the head and trunk being made in one piece while the arms and legs are separate pieces adjustably attached thereto, so that the size of the doll may be adjusted to be the same height as a growing child and thus be abe to share wearing the clothing of the child who owns it.

Abstract: A Magnetic Optical Toy comprising a mirrored viewing chamber, various ferrous metal pieces lying randomly and freely within the mirrored viewing chamber, a movable magnet against and about the exterior surface of the mirrored chamber, and a viewing area into the mirrored chamber allowing the observation of the interior of the mirrored chamber with both eyes of the observer in order to perceive a three dimensional image.As the magnet is moved against and about the outside surface of the internally mirrored chamber various shapes and sizes of ferrous metal pieces are attracted and otherwise moved within the mirrored chamber and form a random design pattern which is reflected in the mirrored chamber resulting in a viewable three dimensional reflected design configuration. The design configuration changes as the magnet is manipulated by the observer.

Abstract: A rotating unit having a rotating wheel on the internal circumference of which a gear is formed, a drive motor to the rotating shaft of which a pinion gear is fixed, an intermediate gear in mesh with the gear of the rotating wheel and the pinion gear of the drive motor, and characterized in that the reduction gear mechanism is simplified by causing the drive motor to drive the rotating wheel via the intermediate gear with the consequence that the volume and weight of the rotating unit is reduced, and that the rotating shafts of the rotating wheel and the drive motor are adapted to be in alignment with each other.

Abstract: There is disclosed a door motion control apparatus for the passenger entry and exit doors of a mass transit vehicle, which passenger entry and exit doors are opened by a drive motor when the vehicle is stopped at a desired location for passenger entry and exit within a station.

Abstract: A releasable retaining means for mounting on the inside of an outward opening closure element movable to open and close an opening. First and second mounting means (13 and 14) are respectively mountable on the closure element (11) and opening surround (12) with a stay (15) slidably and pivotably coupled to the second mounting means (14). Stay (15) is pivotably couplable by engagement means (22) to the first mounting means (13) and releasable therefrom by sliding stay (15) relative to mounting means (14) but only when the closure element is closed. Recoupling means (16, 24) automatically cause the engagement means (22) to couple to said first mounting means (13) when the closure (11) is moved into the closed position.The retaining means thus prevents closure element (11) from opening more than a predetermined amount unless the stay (15) is released from the first mounting means (13) prior to opening the closure element (11).

Abstract: An ornamental and protective molding for the edges of vehicle doors in which a U-shaped metal strip is lined with a nonmetallic material so that the lining strip facilitates insulation of the molding and acts as an insulator and seal to prevent rusting and corrosion.

Abstract: A window frame of extruded material having vertical members including sash guides wherein the vertical members are identical but reversed with respect to each other and in mirror-image relation; the sill and header are identical but inverted and reversed end for end with respect to each other. Each frame may be constructed of an identical pair each of two different members. The sill slopes downwardly toward the exterior of the frame. The sill and header are notched at right angles to the outer and inner surfaces to form corner seams which carry out the horizontal lines of the window frame and which do not require exact and difficult mitering to obtain a perfect seam. Such joints do not open during shipping and handling as do miter joints. The sash frame elements are made from a third extrusion. The vertical members and the sill and header are provided with sash supports in which the outer sash edge rides against an end wall of a vertical channel which faces into the window.

Abstract: An improved sharpening machine is provided for easy, extremely accurate sharpening of a variety of tools such as lathe, boring and cutting tools. The machine includes a rotatable, low speed, diamond or other abrasive surfaced wheel, and a tool-supporting table mounted for translatory movement along a path parallel to the wheel abrasive face. The table is further mounted for measured tilting thereof relative to the wheel face, and for shifting of the table and associated structure completely clear of the wheel to facilitate certain sharpening operations and wheel replacement. With the table pivoted completely away from the wheel, the cutting wheel can be operated in a plane perpendicular to its original operating plane. A pivotal tool guide is removably secured to the table for selective alteration of the angular position of a tool being sharpened.

Abstract: A blade sharpener includes a handle to which first and second sharpening members are pivotally attached. The handle has first and second receiving slots for the first and second sharpening members, each slot being on a side opposite the other within the handle. The sharpening members are capable of pivoting from a slot engaging position to an upwardly inclined position, the upwardly inclined position being defined by engagement of a stop within the handle. The sharpening members are inclined in opposite directions resulting in their upper portions being in a spaced relationship. When the blade sharpener is not in use, the sharpening members are pivoted into their respective receiving slots forming a compact unit for storage.

Abstract: A restaurant facility housed within an enclosure bounded by upright walls defining a perimeter for an enclosure of hexagonal outline. A kitchen and service station and table and seating structure within the enclosure are so organized that there is full visibility throughout the dining area. Waiters and patrons move in corridors providing access to tables and seats which are devoid of sharp corners.

Abstract: Insulative roof apparatus includes flexible layers of different materials, including insulation and sealing materials, all of which are flexible, to withstand movement of the roof of mobile homes and similar buildings.

Abstract: An improved tamper-proof window unit comprising similar first and second quadrilateral centrally open frame members adapted to be mounted about an opening respectively on opposite sides of a door. Each frame member has a narrow elongated quadrilateral front panel extending generally in a plane parallel to the door and marginally about the door opening with an outer edge portion partially overlapping the door adjacent the opening. A small countersunk front-to-rear screw hole is provided on each side of the front panel to communicate with the door opening. A narrow elongated quadrilateral and generally L-shaped integral flange extends along the front panel with each L-shaped flange comprising first and second panels. The first panel of each flange projects generally rearwardly and the second panel projects from the rear edge of the first panel outwardly with respect to the door opening.

Abstract: The specification discloses a method of anchoring sheet material to a framework constituted by a pair of spaced apart frame members. A respective edge of the sheet is slidably engaged in a groove in each of the frame members in such a manner that the sheet cannot be removed laterally therefrom. The sheet material is stretched by pulling another edge portion of the sheet and anchoring said edge portion with the sheet in a stretched condition.

Abstract: A heat-insulating, antisweat structural component for prefabricated residential houses, etc. comprises a set of H-shaped steel sheet piles each having opposed side plates coupled by a coupling plate and fittingly coupled to the other in a side-by-side relationship. In each H-shaped steel sheet pile, an engaging piece is formed at one edge and a fitting piece adapted to snugly fit the engaging piece is formed at the other edge of each of the side plates in such a manner that they are continuous along the respective edges, and fitting grooves are formed centrally on the opposed surfaces of the coupling plate to extend in an opposed relationship to each other and in parallel with the side plates.

Abstract: Lightweight half-lengths of columns for truss structures that are adapted for nestable storage and transport to facilitate fabrication of large area truss structures at a remote site and particularly adaptable for space applications.

Abstract: An improved concrete slab and steel construction wherein a pan is extended between adjacent joists, said pan having a bend line axially along its length, a portion of said pan resting a joist, a second portion being transversely notched such that said pan straddles adjacent joists at said notches, said pan serving to support poured in place concrete such that said concrete haunches down to supporting beams, thereby forming a composite concrete slab and steel structure.

Abstract: An elastic sealing and mounting strip, especially for windows in motor vehicle bodywork. The strip has a main body portion with an arch that covers the gap between the window and the bodywork. A groove receives the edge of the window and a lip extends over the flange edge of a window opening. A number of sealing lips are supported against abutting parts of the bodywork and are supported by harder inserts or are sprung as a result of the presence of hollow chambers in the strip.

Abstract: A precast modular panel suitable for forming at least a portion of a wall or other part of a building comprising a layer of lightweight high strength concrete. The lightweight aggregates comprise scoria to impart strength to the concrete, in cooperation with especially selected pumice to provide water resistance and high insulative properties, along with chopped fiberglass to enhance the structural strength, so that the lightweight concrete possesses strengths fully comparable to those of many concretes for structural uses. The insulative properties of the lightweight concrete contrasts very favorably to those of other lightweight concretes, and with conventional structural concrete. The panel may be so constructed as to require no subsequent decorative finishing.

Abstract: The present invention is in the field of collapsible structural members. It discloses a foldable beam possessing superior qualities of: light weight, compactness for transportation, quick deployment with minimum use of force, and high strength. These qualities are achieved through the use of a series of longitudinally rigid segments, hinged along one side and threaded by one or two cables along the opposite side. Tightening the cables holds the beam extended. Loosening the cables permits the segments to fold away from the threaded side. In one embodiment the segments are connected by canted hinges with the result that the beam may be folded in a helix-like configuration around a cylinder. In another embodiment the segments themselves may be hinged to fold flat laterally as the beam is folded, resulting in a configuration that may be helixed around a shorter cylinder.

Abstract: A machine for placing groups of containers, preferably bottles, into cases. Successive groups of bottles are moved horizontally to a first station where they are releasably suspended on escapement bars. The bottles are suspended at enlarged neck flanges adjacent their finishes. A cam mechanism moves the bars apart to release bottles allowing them to be moved vertically downward to a second station. The bottles are releasably received within one of two horizontally movable chutes at the second station. The chutes are also pivotable relative to one another so that the bottles may be inverted piror to being loaded into a case at a case packing station below. The two chutes are reciprocated horizontally relative to the first station so one chute may be unloaded into an awaiting case while the remaining chute is being loaded through operation of the escapement mechanism. Each chute may be inverted as the chutes are horizontally reciprocated.

Abstract: A packaging apparatus for erecting, filling and closing paperboard cartons of a type that are initially supplied in a flattened condition and have four body panels, lower closure flaps; and an open top, and a separate plastic cover. The packaging apparatus opens and erects the paperboard cartons in an inverted position and advances the cartons while inverted along a path past a filling station. Covers are fed to a position below the cartons and are pressed into the open ends of the cartons as they are advanced along the path and before they reach the filling station. The lower closure flaps are thereafter folded to close the cartons.

Abstract: A harvester for plants such as Irish moss is disclosed. The harvester may be towed along the sea bed by a surface vessel and provides for the continuous pumping of harvested plants to the vessel by way of an enclosed conduit. The harvester includes a plurality of axially spaced harvest rollers rotatably mounted in a frame. A plurality of guide rollers are pivotally mounted relative to the harvest rollers in advance thereof with each guide roller being longitudinally aligned with a corresponding space between adjacent harvest rollers. A continuous mesh-like harvest belt extends around the guide and harvest rollers with the lengthwise members thereof being entrained around the guide rollers and positioned in the spaces defined between the harvest rollers. The transverse members of the belt are flexible and extend between the endless members so as to be positioned, in the lower run thereof on the sea bed, and so as to engage and conform to the contour of the harvest rollers.

Abstract: The invention seeks to reduce loss in combine harvesters by monitoring the distribution of crop material over the grain cleaning mechanism and taking corrective action when the distribution is unfavorable such as by adjusting one or more components of the combine which affect said crop distribution.In one embodiment, temperature-sensitive devices are provided on the louvres of the chaffer sieve of the grain cleaning mechanism and the output signals of the devices are applied to a control circuit which produces a command signal which can be used to control the speed of a fan of the cleaning mechanism or to adjust the position of baffles in the fan outlet duct.

Abstract: In an agricultural attachment, a gearing arrangement is provided to connect a driven gear in the attachment to a power take-off connection on a tractor. The gearing arrangment includes drive gears spaced laterally apart, each of a different size, and each mounted on a different shaft. The drive gear shafts are disposed in spaced parallel relation to the shaft on which the driven gear is positioned. The drive gears are mounted in a casing formed by two half shells and can be swung through an arc about the axis of the shaft of the driven gear for affording an optimum connection to the power take-off connection of the tractor.

Abstract: A multirow harvester header comprising a plurality of pairs of crop conveyors. Each conveyor pair corresponds to a single row of crop and is used to converge and convey a single row from a standing position in the field into the crop receiving throat of the harvester attached to the rear of the header. A first and second pair of the conveyors is inclined transversely and downwardly in a direction toward a third and fourth pair of the conveyors. The third and fourth pair of conveyors are inclined transversely and downwardly in the direction of the first and second pair of conveyors. The second and third pair of conveyors are vertically spaced above and in overlapping relationship respectively with the first and fourth pair of conveyors. The transverse inclination and overlapping relationship of the conveyors enables the rear drive shafts of each pair of conveyors to be closely spaced together in front of the crop receiving throat of the harvester.

Abstract: Grass collection apparatus for attachment to a rotary power mower includes a platform mounted behind the mower and carrying thereon a grass container comprising an open-ended wire mesh cylinder, the lower end of which has removably attached thereto in surrounding relationship therewith a disposable plastic bag which is folded between the platform and the container. A stream of air and entrained grass clippings from the blade housing are directed by a conduit upwardly into the container through an inlet near the bottom thereof and against a perforated deflector comprising two concave sections intersecting in a cusp-like ridge disposed centrally of the inlet path. The deflector is inclined upwardly and inwardly of the container and is provided at the upper end with a downturned hood portion and operates to split the stream of air and entrained grass clippings to prevent the buildup of back pressure and to prevent the clippings from exiting the top of the container.

Abstract: A pair of floor panels extend inwardly from the opposite sides of a harvesting machine in an inclined relation and have an overlapping relation centrally of the machine. Each panel has a resilient membrane supported on a plurality of longitudinally spaced, spring-pressed, inclined pivotal arms. The membrane portions are arranged to move past trunk portions of vines in close association and catch crop articles falling by gravity as a result of shaker apparatus or the like on an upper portion of the machine. The flexible membrane has upwardly arched portions in the area between the support arms, the arched portions on opposite sides being laterally aligned and in partially overlapping relation. The support arms have lateral adjustment as well as adjustment of their inclination. Adjustment apparatus is also provided to vary the tension of the membrane portions.

Abstract: In a machine for treatment of tree thinning residues and logging slash of the type having free-swinging flails pivotably connected to rotatable support structures at a pivot point, the improvement is made wherein each flail comprises a cutting blade containing the effective center of mass of said flail, and a plurality of side arms connected at one end of said cutting blade and having at the other end means for pivotal connection to said rotatable support structure, said means for pivotal connection being located on said rotatable support structure and the length of said arms being such that the distance R from the axis of rotation of said rotatable support structure to said pivot point, and the distance L from said pivot point to said flails effective center of mass having the following relationship:R/L=n/2where n is any integer from 1 to 5.

Abstract: A hybrid digital computer gas turbine power plant control system which may operate in a multiple-control loop arrangement is provided with selected process variable monitoring means. Control system inputs representative of current values of such variables are continuously available to provide positive highly responsive control over a broad range of gas turbine operating conditions. Predictable process sensor errors are effectively eliminated by means of programmed computer operations to thereby insure highly accurate control variable derivation essential to maintaining gas turbine operation at or near design limits.

Abstract: A solar power plant with a gas turbine circuit, having a compressor, a solar heater, a combustion chamber for heating air compressed in the compressor, a turbine and a generator, the solar heater and the combustion chamber being connected between the compressor and the turbine, and a valve for connecting and disconnecting the solar heater to the circuit, the combustion chamber having double walls defining an outer space between the walls and an inner space, the outer space of the combustion chamber being connected in series with the solar heater upstream thereof, in flow direction of the compressed air, the inner space of the combustion chamber being connected downstream of the solar heater in flow direction of the compressed air, and the valve connecting the outer space and the inner space of the combustion chamber to each other.

Abstract: A control system for the injection of water or steam into the combustion chambers of a combustion turbine for reducing the emission of oxides of nitrogen in the exhaust gas of a combustion turbine is described. The control system includes a water control valve having a linear flow versus stroke characteristic which is controlled by an error signal representing the difference between a predetermined water-to-fuel schedule and the actual water-to-fuel schedule. Instruments for monitoring and recording water and fuel flow are also described.

Abstract: A throttle servo for each engine of a multiengine aircraft and servo tracking means for detecting and compensating for servo drift during autothrottle mode of operation.

Abstract: A flame holder device of the type having a flame holder ring with a contius cross section of revolution in the shape of a U or V, and a plurality of flame holder arms having a continuous cross section in the shape of a U or V and radiating from one of the flanks of the ring. According to the invention, each arm is attached to the ring by means of gussets which provide for a slight spacing of the arm from the ring in order to prevent local overheating of the ring due to the recirculation of combustion gases.

Abstract: In the combination of an internal combustion engine, a turbocharger and a ste gate, the improvement is the waste gate which includes a fluidic device having its inlet and outlet connected in parallel with the turbine of the turbocharger and a biasing port responsive to the output of the turbocharger to proportion the fluid flow from the inlet to the outlet between two parallel fluidic paths having a high and low flow resistance respectively. The fluidic device is a fluid amplifier providing radial and tangential flow to a vortex valve to produce the low and high resistance fluidic paths respectively. Alternatively, the fluidic device could be in series with the turbocharger to backpressure the compressor of the turbocharger.

Abstract: An improved double-acting, nonexpansion, noncondensing, piston steam engine. A coiled tube flash boiler enclosed in an insulated fire chamber is located above and contiguous with the cylinder head of the steam engine. The base of the fire chamber has a cylindrical opening to enable the heat from the flames in the fire chamber to be transferred directly to the top cylinder head for enhanced heat transfer to the cylinder. Two parallel crank shafts, each having a spur gear fixed thereon which meshes with the spur gear fixed on the other, are mounted on pillow block support bearings. A "T" linkage interconnects the crank shafts and the piston of the steam engine. Two rotary valves are provided to control the flow of high temperature steam and spent steam to and from the cylinder.

Abstract: A plurality of circumferentially spaced props are attached to the outer overlapping segments of a combustor liner to prevent the thermal outward growth of the inner segment. Placement of the props on the outer segment allows them to remain relatively cool to thereby minimize stresses and, when combined with a liner design which centrifuges the cooling air to the radially inner side of the cooling slot, such placement coincides with a separation bubble so as to minimize flow blockage and resulting hot streaks.

Abstract: The isolation chamber has an aluminum outer housing with heat transfer fins extending therefrom on the outside vertical surfaces, and insulation material mounted along each inside surface thereof forming a thermally insulative shell. Large aluminum studs extend inwardly from the side surfaces of the housing through the insulative shell for supporting a solid state heat pump. Each pump has a set of inwardly directed heat exchange fins. Each stud and associated pump and inwardly directed set of fins forms a heat conductive path between the surrounding ambient air and the interior of the isolation chamber for controlling the heat flow therebetween. The combined configuration of the inner heat exchange fins defines a central cavity which is temperature controlled to within a desired operating temperature range. A card cage containing the electronic devices is installed in the temperature regulated central region.

Abstract: A stacked disc heat exchanger for a refrigerator cold finger includes a plurality of discs positioned within a cold finger cylinder and clamped to a cylinder end plate. Radial gas flow passages between the plates join inner and outer longitudinal gas flow passages. The radial passages provide a large surface area for contacting refrigeration gas and effecting efficient heat exchange with a load attached to the end plate. In a preferred embodiment the radial passages are flat grooves in the faces of discs. The stack of discs provides ease in assembly and great flexibility in designing the heat exchanger for particular applications.

Abstract: The logic control system of the invention regulates the frequency of operation of an inverter which drives an electric motor, and also regulates the level of the d-c bus voltage supplied to the inverter. This is accomplished by sensing the level of the bus voltage and the level of the current supplied to the motor, and comparing the sensed values to a reference or set point signal. The motor drives a compressor, and a capacity control system cooperates with the logic control system in the regulation of the compressor. The capacity control system provides signals, such as start/stop and inverter set point, to the logic control system to assist in regulating operation of the inverter which drives the compressor. In particular the logic control system includes a reference conductor on which a basic reference control signal is developed for use in controlling both the amplitude and the frequency of the a-c energy supplied by the inverter to the motor.

Abstract: An arrangement for storing cryogenic liquid comprises a Dewar-flask-like vessel. The vessel is filled completely with a material able to absorb a cryogenic substance when said substance is in liquid form but only capable of absorbing said substance to a limited extent when said substance is in gas form. Adjacent to the mouth of said vessel and externally thereof there is provided a cavity, which is arranged to cooperate with means by which any gases formed in said cavity can be released to atmosphere when the pressure in said cavity exceeds a given pressure.

Abstract: An air conditioning system is disclosed in which the air conditioning capacity is stepped to a lower level upon reduced sensible air conditioning demand. The stepped reduction involves both a stepped reduction of blower capacity and a stepped change of the heat exchange fluid flow at the heat exchanger modifying the temperature of the air. Several embodiments are disclosed.

Abstract: A closed circuit refrigeration system having an elongated liquid refrigerant conduit in the high pressure circuit portion which delivers a vapor-free stream of liquid refrigerant to the expansion valve separating the high and low pressure portions of the closed circuit. Vapor formed by exposure of the liquid refrigerant conduit to ambient conditions is withdrawn by a dual suction compressor, and the refrigerant approaching the expansion valve is adiabatically cooled to liquefy any additional vapor formed by the withdrawal of vaporized refrigerant from the high pressure portion of the circuit.

Abstract: A sorbent-type air conditioning system which employs conventional refrigeration unit, including a compressor, evaporator, condenser and refrigerant. The cooling and heating effect or energy generated by the evaporator and condenser is the primary source of energy to temperature and moisture condition air and to regenerate or concentrate sorbent which becomes diluted during the moisture conditioning of the air.

Abstract: An earring which comprises a retainer (14) and a securing pin (20) linked together by a chain (12) is disclosed. The securing pin mates with a closure (24) which may be secured to it.When it is desired to wear the inventive earring, the wearer passes the pin (20) through a bead (28) or other decorative object, bringing the bead (28) into abutting relationship with the retainer (14). The pin (20) is then passed through a hole in the user's ear lobe (32) and attached to the closure (24). The chain (12) may then be pulled through the ear any desired amount in either direction to achieve the desired visual effect.

Abstract: A positive thread-delivery device for a textile, in particular a knitting, machine with a plurality of thread-guiding rollers, with which cooperates a common delivery belt and with which each one a thread-control element is associated, which thread-control element during the delivery of the thread holds same in a clamping position between the delivery belt and the thread-guiding roller and which during a drop in the tension of the thread which is delivered by the thread-delivery device can be changed over into a position in which it guides the thread over an area of the thread-guiding roller which is free of the delivery belt to thus terminate the thread delivery, and a tension feeler is provided which engages, independently from the thread-control element, the thread which is delivered by the thread-delivery device, which feeler operates an electromagnet which loads the thread-control element.

Abstract: A positive thread-delivery device for a knitting machine, wherein a plurality of thread-guiding rollers are associated with each knitting system, with which one common delivery belt cooperates, wherein with each roller there is associated a thread-control element which, during processing of the thread, holds same in a clamping position between the delivery belt and roller and which during paying out of the thread can be changed over into a position in which it guides the thread over an area of the roller which is free from the delivery belt to thus terminate such delivery, and including a thread-breakage monitor wherein a swivel arm is provided which engages the thread which unwinds from the thread-delivery device, which swivel arm has associated therewith first and second switches operated at different angles of traverse of the swivel arm, the first switch controlling an electromagnet which loads the thread-control element, the second switch stopping the drive of the machine, the first switch being the first

Abstract: An apparatus for treating a length of textile material which has a pile surface includes at least one sieve drum washing bath for washing the entire width of the textile material to even out or level irregularities across the width of the pile surface, a first steamer unit for treating the washed textile material, a dye applicator unit for applying dye to the steamed and washed textile material and a second steamer unit for treating the dye-containing textile material with steam to fix the dye to the textile material. The sieve drum washing bath includes a sieve drum positioned within a container for the treatment liquid and is provided with a plurality of nozzle openings arranged within the container and spaced closely adjacent to the sieve drum for directing the treatment liquid in the form of a plurality of jets across the width of the textile material being supported on the sieve drum.