Abstract: In an example embodiment, a device for generating a cleaning foam includes a female housing and a male plug. The plug includes an aperture into which a fluid flows from another component of the cleaning system. The plug includes a premix chamber which receives the fluid from the aperture and into which a gas is injected to form a foam. In an example embodiment, the chamber is a hollow cylinder and the gas is injected into the cylinder through channels which are tangential to the cylinder. The plug also includes a solid cylinder with a continuous helical indentation on the outside of the solid cylinder. When the male plug is inserted into the female housing, the continuous helical indentation and the inner surface of the housing form a helical channel through which the foam flows and is further mixed on its way back into the cleaning system.

Abstract: An apparatus and a method serve for cleaning articles used in the production of semiconductors, such as wafers, containers for transporting wafers (known as FOUPs), LCD substrates and photomasks. The articles are cleaned in a treatment chamber by means of a liquid and subsequently dried. A drying gas, such as air, is circulated within the treatment chamber and a condensation dryer is provided for extracting moisture from the gas.

Abstract: Dish-washing machine comprising a chamber (2) for washing articles (3), an air inlet line and an air outlet line both communicating with the chamber, air circulating means for forcing an inlet airflow sucked from the atmosphere into the chamber (2) via said air inlet line and exhausting an outlet airflow saturated with moisture after passing over said articles (3) to the atmosphere via said air outlet line; heating means are provided for heating said outlet airflow before exhausting to the atmosphere in order to reduce the relative humidity of the discharged air.

Abstract: A dishwasher with a system for filling level recognition may be achieved which reliably determines the fluid level inside the dishwasher without the use of moving parts, whereby the dishwasher is provided with at least one capacitive filling level sensor for recognition of the fluid level of the rinsing fluid contained in the dishwasher, the electrical capacitance of which changes depending on the height of the fluid level. The fluid level in the dishwasher can thus be reliably determined without the need for moving parts and merely by the use of electronic components.

Abstract: A central shaft control structure is provided for a self-opening/closing umbrella and is arranged in a handle of the umbrella for self-opening/closing of the umbrella, including a safety device composed of a reversal prevention wheel having a toothed surface, an operation bar comprising a pawl, and a barrel fit over the operation bar. The reversal prevention wheel comprises a safety rope wrapped therearound and having an end fixed to a third central shaft segment. When errors occur in the course of compression in closing the umbrella, the central shaft that is being compressed can be held in position, so that instantaneous spring back of the central shaft caused by an umbrella opening spring that is in a compressed condition can be prevented to ensure safety of operation and control of the self-opening/closing umbrella.

Abstract: A control structure is provided for mounting to a handle of a self-opening/closing umbrella and includes a reversal prevention wheel around which a safety rope is wound and extending through a central shaft of the umbrella with an end fixed to the reversal prevention wheel and an end fixed to a crown. A locking member that includes a pawl bar and an operation bar is arranged above the reversal prevention wheel. When The umbrella is being compressed and closed, the pawl bar engages a toothed surface of the reversal prevention wheel, whereby when errors occur in the closing of the umbrella, reversed rotation of the wheel is prevented by the pawl bar and the safety rope connected to the reversal prevention wheel is prevented from extension so as to prevent the central shaft from undesired extension and instantaneous spring back of the central shaft is also prevented.

Abstract: A clothesline cover apparatus for protecting a clothesline from the rain comprising a housing, a water-resistant housing extendable from the housing via a first telescopic pole and a second telescopic pole, and a first sensor for detecting the presence of or absence of rain. When the first sensor detects rain, a microprocessor activates a motor to extend the first and second telescopic poles out of the housing to extend the canvas over the clothesline. When the first sensor detects the absence of rain, the microprocessor activates the motor to retract the telescopic poles.

Abstract: A covered hammock that acts as both a hammock and a ground tent is disclosed which has a plurality of curved support means for keeping the upper fabric off the user and also for supporting the device as a tent when used on the ground.

Abstract: A tent includes a fabric enclosure including a plurality of walls and a floor defining a floor perimeter. Each wall is coupled to the floor at a joining seam positioned at a vertical distance with respect to a ground plane. A skirt is coupled to each wall at the joining seam and extends external to the floor perimeter.

Abstract: A subsea system comprises a wellbore within a reservoir, equipment downstream of the wellbore, and a barrier connected to the equipment. The equipment is rated for a maximum pressure that is less than a maximum reservoir pressure and equal to or greater than the maximum reservoir pressure less external hydrostatic pressure experienced by the equipment. The barrier is rated for a maximum pressure that is equal to or greater than the maximum reservoir pressure.

Abstract: A product comprising a phase transfer valve, and wherein said phase transfer valve comprises an actuating valve housing having a housing interior; a liquid hydrogen inlet, a gaseous hydrogen inlet and a hydrogen outlet provided in said valve housing; an actuating valve slidably mounted in said housing interior; and wherein said actuating valve is moveable between a first position for sealing said gaseous hydrogen inlet from said hydrogen outlet and a second position for sealing said liquid hydrogen inlet from said hydrogen outlet.

Abstract: Gravity and flow operated diverter valves are disclosed for diverting liquid flow from one source to either of two output destinations, the valves including a housing defining an inlet opening through a base wall, a first outlet opening through a first upper wall and a second outlet opening through a second upper wall. The housing is operable in a configuration with the base wall arranged vertically beneath the first and second upper walls. A valve member has a first end, a second end, and a central portion, the valve member being movably suspended within the housing by the first end when no liquid is flowing into the inlet opening. The valve member is pivotable in a first direction to seal the first outlet opening and pivotable in a second direction to seal the second outlet opening.

Abstract: The resilient seated butterfly valve has a common spherical center for receiving either an on-center or off-center disc, both of which are rotatably mounted in the body. A seal has a seat spherical surface. The seal is affixed to the circumference of the valve chamber. It has an on-center seal region for engagement with the on-center spherical sealing edge of the on-center disc. The seal has an off-center seal region for engagement with the off-center spherical sealing edge of the off-center disc. The seal may include an outlet flange, an outlet ramp, an inlet ramp, and an inlet flange. The front face of the seal for the off-center disc extends beyond the position of the front face of the seal for the on-center disc.

Abstract: The present invention relates to a multipurpose flow module comprising flow plates and/or heat exchanger plates stacked together, which flow plate having a flow channel and one or more connection ports. To each flow plate or heat exchanger plate one or more barrier plates may be attached. The present invention further relates to a method for extraction, for reaction, for mixing, or combinations thereof in the multipurpose flow module, and to uses of the multipurpose flow module.

Abstract: Methods of, and apparatus for, storing and transporting a hazardous fluid, such as a combustible fuel, include methods and means, respectively, for: (a) treating the fluid to reduce its hazardous condition; (b) storing and/or transporting the treated fluid in such a manner that the risk of its hazardous condition remains reduced; (c) thereafter retreating the fluid to restore it to its original hazardous condition so that the fluid may be used in its restored condition. The hazardous fluid may be treated by adding a substance to, or removing a substance from, the fluid, or by changing the state of the fluid. For example, if the fluid is a fuel, it may be treated by cooling it to near or below its freezing temperature to reduce its combustibility, volatility, explosivity and/or ease of ignition.

Abstract: A swing valve includes a body having an inner surface defining an opening, a plate positioned substantially within the opening of the body, and a pivot rod coupled to the body and the plate. The pivot rod defines a pivot axis. The plate is pivotable about the pivot axis relative to the body between an open position and a closed position. The swing valve also includes a locking mechanism coupled to the plate. The locking mechanism includes a member that is movable relative to the plate between a first position, in which the locking mechanism engages the body to lock the plate in the closed position, and a second position, in which the locking mechanism disengages the body to allow movement of the plate relative to the body.

Abstract: A pneumatic system for a surgical machine includes a reservoir, first and second proportional valves, and a controller. The reservoir holds pressurized gas. The first proportional valve is located on an input side of the reservoir and allows a variable amount of pressurized gas to enter the reservoir. The second proportional valve is located on an output side of the reservoir and allows a second variable amount of pressurized gas to exit the reservoir. The controller controls the operation of the first and second proportional valves. The controller adjusts the first and second proportional valves so that a constant gas pressure range is maintained at an output of the reservoir over a first range of input gas pressures and a second range of gas usage.

Abstract: A mixing valve has a first rotating element connected to a valve stem for use as a valve handle, and a second rotating element for pre-setting the valve handle at a desired water temperature position. After pre-setting, user can turn the valve handle directly to the desired temperature position without trial and error.

Abstract: A device for controlling the delivery of a combustible gas to a burner apparatus is provided including a main gas-delivery duct in which there is at least one servo-assisted diaphragm valve including a valve seat associated with a corresponding closure member with diaphragm control for opening the seat against the action of a resilient biasing member. The diaphragm valve includes a respective control solenoid valve with an electromagnetic operator for controlling the corresponding valve, the solenoid valve being arranged to bring about the opening/closure of a duct of a respective servo-assisted control circuit so as to operate the closure member of the valve indirectly, by the diaphragm control. The duct of the control circuit putting a portion of the main duct that is disposed upstream of the valve seat with respect to the direction of the gas-flow into flow communication with a respective control chamber of the diaphragm valve.

Abstract: A fuel valve includes a housing defining a ported standpipe portion for extending upwardly into a fuel tank at a bottom opening thereof. The standpipe sealingly receives a ported and relatively rotational valving member, which also carries a respective resilient sealing collar aligned with and sealingly cooperating at each of the ports of the valving member. The valving member is selectively rotational and may be positioned relative to the standpipe portion in order to stop fuel flow through the valve, or to selectively allow fuel flow through the valve from one or more separate levels of fuel in the fuel tank. A handle on the exterior of the fuel valve provides for selective rotation and positioning of the valving member, and the fuel valve itself may be selectively and conveniently rotated relative to a fuel nipple attached to the fuel tank.

Abstract: A valve has a body, a fluid inlet duct delimited by the body, two fluid outlet ducts into which the fluid inlet duct opens, an intersection formed by the two fluid outlet ducts, a butterfly valve disposed in the intersection, and a motor, to which the butterfly valve is connected, for actuating the butterfly valve between a first extreme position in which the butterfly valve directs the fluid mainly toward the first outlet duct and a second extreme position in which the butterfly valve directs the fluid mainly toward the second outlet duct. The motor is placed between the outlet ducts in the vicinity of a connecting zone connecting the two outlet ducts to one another. The butterfly valve is mounted in front of the connecting zone so that the butterfly valve forms a screen against the fluid for the connecting zone.

Abstract: A zirconium- and alumina-containing silicate glass suitable for use as a frit with refractory materials such as alumina is disclosed, the silicate glass comprising a glass composition in mole percent (mol %) of: 2<B2O3<7 mol % 75<SiO2<80 mol % 3<Al2O3<5 mol % 2<ZrO2<5 mol% 9<Na2O+K2O<15 mol % 0<alkali earth+lanthanide<15 mol % and wherein the total mole percent of SiO2, AlO3 and ZrO2 together is greater than 82 but less than 86, and wherein the total mole percent of B2O3, Na2O, K2O, alkali earths and lanthanides together is greater than 13 and less than 18. Frits (200,600), composites (600) and microfluidic devices (12) comprising the glass are also disclosed.

Abstract: A check valve for medical infusion lines and the like, includes a diaphragm made of elastic material set between a first tubular connector and a second tubular connector. The diaphragm includes an end wall of a cup-shaped element, having an outer peripheral edge of which is normally pressed in seal contact against an annular valve seat with a conical surface of the first tubular connector under an axial thrust exerted by a side wall of the cup-shaped element. A free edge of the side wall of the cup-shaped element is set resting against a transverse surface of the second tubular connector only in regions corresponding to angular portions of the latter separated by non-resting angular portions.

Abstract: A method of constructing an industrial machine such that, in operation, a supply of a fluid coolant through a hollow passageway is delivered at a reduced temperature, the method including the steps of: a) identifying at least a section of the hollow passageway that transports or is meant to transport the fluid coolant through a space that resides at a temperature that is significantly higher than a desired temperature of the fluid coolant; and b) through at least a majority of the identified section of the hollow passageway that transports the fluid coolant through the space that resides at the temperature that is significantly higher than the desired temperature of the fluid coolant, constructing the hollow passageway such that the outer surface of the hollow passageway has an emissivity coefficient less than about 0.1.

Abstract: A rug, a loom for making a rug and a method of making a rug are various aspects of this invention. The loom for weaving a rug includes a frame defining a workspace for weaving the rug in which the frame includes a first, a second and a third frame member with a number of warp yarns extending across the workspace. Each of the warp yarns is coupled to the third frame member and a first set of the warp yarns is coupled to the first frame member and a second set of the warp yarns is coupled to the second frame member. The loom also includes at least one rod adapted to extend within the workspace to receive a first yarn pile thread looped thereon and about the first set of warp yarns to form a first yarn pile. The rod also receives a second yarn pile thread looped thereon and about the second set of warp yarns to form a second yarn pile. A method of making a rug as well as a rug itself is a further aspect of this invention.

Abstract: A method for a user to adjust a pressure in an inflatable device. The method includes acts of adjusting the pressure in the inflatable device with a control device to a pressure preferred by the user, where the pressure preferred by the user has a first value, and establishing a first setting corresponding to the pressure preferred by the user with the control device, and automatically establishing a second setting corresponding to a second pressure having a second value once the first setting is established, where the second value differs from the first value by a predetermined amount.

Abstract: A circular filling machine particularly for slender and elongated products, comprising a carousel assembly which supports a plurality of filling funnels which can be inserted in corresponding containers supported by transfer pans, the filling machine further comprising vibration elements for the funnels, vibration elements for the containers, and a tamping assembly for the insertion and final packing of the product in the containers.

Abstract: An automated liquid dispensing system employs a mechanism which moves a container [1230] relative to a fill tube [1240] to fill the container [1230] with the proper amount of liquid [1131] with a designated amount of foam [1137]. The system [1000] also includes a container dispensing unit [1400] which pre-chills containers [1230] then flips them into a drop tube [1510] to be received by a lift [1550]. Lift [1550] raises the container [1230] to a pouring head [1570] and fills the container [1230] as it lowers container [1230] to properly fill the container [1230] and create a desired amount of foam [1137].

Abstract: The present invention relates to devices facilitating the addition of items into containers. In particular, the present invention relates to devices configured to assist in supplying food items into mixing containers.

Abstract: This document provides connectors such as a connector for enabling fluid transfer between a first fluid container and a second fluid container, which connector comprises a first component that is arranged to be connected to a first fluid container and a second component that is arranged to be connected to a second fluid container. The first component can be non-rotatably connected to the second component before a second fluid container is connected to the second component and/or before a first fluid container is connected to the first component. The connector can comprise a locking and rotation-enabling element that is arranged to be activated once a second fluid container has been connected to the second component, and/or once a first fluid container has been connected to the first component, which locking and rotation-enabling element enables the first component and the second component to rotate freely with respect to one another.

Abstract: Tire for motor-vehicles provided with a tread pattern wear indicator, where the tire tread is formed by pattern parts in the form of circumferential ribs and/or in the form of blocks and contains at least one circumferential groove, wherein the indicator is arranged in the surface part of the pattern in the circumferential ribs or blocks, which are in contact with the road surface, and is in the form of sipes running radially into tire tread, while the greatest depth of the indicator sipes is smaller than the depth (H) of the circumferential groove. The tread pattern wear indicator (3) consists of seven radial sipes of three different depths, created and arranged so that they form the Arabic numeral 8 in segment depiction.

Abstract: Provided is a pneumatic tire capable of improving the drainage performance while favorably maintaining the uneven wear resistance.

Abstract: The modular tire chain apparatus provides for ease of installation due to connecting modules that allow a user to assemble the apparatus on a tire and wheel with greater ease than having to struggle with a continuous tire chain. A further advantage of the modules is that any number of modules needed to surround a tire and wheel are easily attached together, thereby providing a substantially universal fit to a plethora of tire sizes. And, the tie strap with spring with hook aids in securing the modules to a tire. Further the ties are secured, one to the other and to the outer members. The ratchet lock further ensures snug fit of the apparatus. The inner cable, outer cable, inner members, outer members, and cross members are available in rubber coated finish, thereby avoiding potential vehicle and wheel and tire damage.

Abstract: Revised tire chain attachments and mounting methods, for use on an otherwise typical, presently marketed link construction, ladder pattern, truck tire chain, to reduce chain slack and increase chain tension, from mounting, and increase the feasibility of one stop mounting for a broader range of tire sizes and truck loading conditions, by providing a better fit of the chain to the tire footprint, as affected by the specific tire size and truck loading.

Abstract: The present invention provides a pneumatic tire that inhibits any fatigue rupture at an edge portion of a circumferential-direction reinforcing belt layer and also inhibits any separation at an edge portion of crossed belt layers. In the pneumatic tire, at least two crossed belt layers are disposed on the outer circumferential side of a carcass layer in a tread portion. At least one circumferential-direction reinforcing belt layer with a width smaller than those of the crossed belt layers is disposed between the crossed belt layers. Moreover, a stress relaxation layer of a rubber composition having a fixed thickness is disposed between the crossed belt layers while lying adjacent to an edge portion of and outside, in the width directions of, the circumferential-direction reinforcing belt layer.

Abstract: For attaching at least one flat supplementary product to a printed product, one leaf of the printed product is brought from a folded configuration into an essentially horizontal orientation. A supplementary product is attached, especially by an adhesive, to this horizontal leaf, preferably from above. Supplementary products can be attached to the front side and to the rear side of the printed product. The supplementary product is, for example, a commercial sample or a card.

Abstract: A thermal imaging system for a battery module enclosure that includes first and second battery module enclosure components between which a weld is formed includes a thermal imaging camera that focuses on the first and second battery module enclosure components within a predetermined amount of time after the weld is formed and that acquires a thermal signature. A control module includes an image processing module that receives the thermal signature and that locates a predetermined reference point in the thermal signature. An image comparison module receives the thermal signature and uses the predetermined reference point to compare the thermal signature to a template signature in order to verify structural integrity of the weld. The image comparison module computes a relative measure of deviation of the thermal signature from the template signature and identifies the weld as defective when the relative measure of deviation is greater than a predetermined value.

Abstract: An apparatus for connecting together two sections of tubing using a laser. A pair of fixtures hold the two tubing sections in opposed, end-to-end relation so that axially facing surfaces of the tube sections at the ends are free from exposure to a surrounding environment. A photodiode laser emits an electromagnetic beam at a separate sheet of material positioned between the axial surfaces at the ends of the tubing sections. The sheet absorbs energy of the electromagnetic beam. The pair of fixtures move the two tubing sections to bring the respective axially facing surfaces of the two tubing sections into engagement with the sheet and after the axially facing surfaces of the two sections are brought into engagement with the sheet, the electromagnetic beam is directed onto the sheet for welding the two sections of tubing together.

Abstract: A method of applying graphics to a set of articles with a graphic transfer assembly is disclosed. The method includes a step of selecting an article from a set of articles comprising different types of articles. After selecting a last that may be associated with the article, the last may be attached to a last assembly of the graphic transfer assembly. With the article attached to the graphic transfer assembly, a deformable membrane may apply graphics to curved portions of the article.

Abstract: An apparatus for film transfer includes at least one printing press and at least one transfer film supply roller, a transfer film guiding device for guiding the transfer film web from the transfer film supply roller to a transfer nip. In order to ensure a variable film transfer in different printing units of the printing press, up to now the transfer film supply roller is moved with a film module into the region of the desired printing unit. In order to make a variable film transfer possible without complicated moving, the guiding device has web guiding elements at least in the region of the at least one printing press and the web guiding elements are enabled to selectively guide the transfer film web to different positions on the at least one printing press, such as to possible potential transfer nips.

Abstract: A device is provided for removal of a layer, such as a label, from a cylindrical surface of an object. The device includes a guide, a cutting instrument, and a base connecting the guide and the cutting instrument. The guide and the cutting instrument are separated by a distance defined by the base, and the cutting instrument is positioned to shave along the object's surface to remove the layer, when the surface of the object is rotated against the cutting instrument and against the guide.

Abstract: A shutter slat assembly for a storm shutter, the slat assembly including an elongated horizontally extending shutter slat having longitudinally extending formed edges configured to slidably, interlockingly connect with the next adjacent slat for limited pivotal movement between adjacent connected slats sufficient for rolled-up storage of the storm shutter. Each slat has a central port formed therethrough for viewing and light transmission through the port. An elongated transparent panel preferably having a cross section similar to that of the slat includes enlarged edge portions configured and spaced for dependent slidable engagement between and within inwardly facing grooves formed inwardly adjacent to the edges. The transparent panel covers the port while allowing a person to obtain a view and permit light transmission therethrough.

Abstract: A spring assembly is provided for an upward acting door that travels on a travel path while opening. The assembly includes a shaft, a torsion spring and a second spring. The torsion spring is connected to the shaft and provides a lifting force for the door throughout the travel path. The second spring is connected to the shaft and provides a lifting force for the door during only a portion of the travel path. In another aspect, a spring assembly is provided for an upward acting door that travels on a travel path while closing. The torsion spring is connected to the shaft and provides a weight supporting force for the door throughout the travel path. The second spring is connected to the shaft and provides a weight supporting force for the door during only a portion of the travel path.

Abstract: The present invention provides a combination of a door and door frame defining a door opening. The door frame comprises a horizontal header beam. The door opening has a horizontal top side and a horizontal bottom side, with the horizontal header beam defining the horizontal top side. The door comprises a top panel, a middle panel, a bottom panel, a first horizontal hinge member, a second horizontal hinge member and a third horizontal hinge member, each panel having a horizontal upper edge and a horizontal lower edge. The door is in the closed position when the top panel, the middle panel and the bottom panel are vertically aligned with one another and hanging downwardly from the horizontal header beam in a vertical plane of the door opening, with the horizontal upper edge of each panel above the horizontal lower edge of each respective panel, and the horizontal lower edge of the bottom panel is located in the lowermost position proximate to the horizontal bottom side of the door opening.

Abstract: A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for resisting movement of the door upon application of a load thereon, and a positive stop preventing movement of the biasing means beyond a predetermined point.

Abstract: A forging apparatus and a forging method for rheo-casting are disclosed, in which primary rheo-casting using an upper mold and a lower mold, casting of a hub region of a product material using a first roller unit and casting of a rim region of the product material using a second roller unit are accomplished in series, enabling vehicular wheels having relatively complex shapes to be cast via a single casting process. Further, the product material includes wrought 6000 series aluminum alloys, which are easy to process and have relatively high strength and low weight, thus being suitable for the manufacture of vehicular wheels having complex shapes. Furthermore, recycling of the product material is possible.

Abstract: The invention relates to a mould for casting metal, having a plurality of temperature measuring devices (300) that are arranged in a wall (100) of the mould in order to detect the temperature distribution at that location. In order to make it easier to install the plurality of temperature measuring devices in the wall and in order to increase the reliability of the measurement results from said devices, it is proposed according to the invention to arrange the temperature measuring devices (300) such that they are positioned fixedly with respect to one another in a module (400), such that the temperature measuring devices together with the module form a structural unit which can be preassembled before the mould is installed. The structural unit is then fastened in or to the wall of the mould as the mould is being assembled.

Abstract: A method of making steel comprising assembling a steelmaking furnace, a thin strip caster, and a mold caster, inputting to a computer data on demand for production output, raw materials, furnace availability and capacity, sequence schedules and through-put, capacities and variability, forecasting by processing by computer from the inputted data a production schedule for the steelmaking furnace, and sequence schedules for the thin strip and the mold casters as a function of molten metal availability, the thin strip and mold caster sequence schedules and through-put, and demand for production output, directing production of molten metal alternatively to the delivery systems of the thin strip caster and mold caster responsive to said forecasting, and varying during casting the rate of metal delivery through the delivery system of the thin strip caster responsive to molten metal availability and the mold caster through-put.

Abstract: Process and related plant for manufacturing steel plates with thickness <100 mm and width of up to 4000 mm from a continuous casting step for slabs, comprising a liquid core reduction step, without interruptions until completion of a finishing rolling step with high reduction ratios in at least one stand. The average temperature when entering the rolling step is ?1200° C., but can be reduced for unalloyed or low alloyed steel greatest.

Abstract: A strand guide for a cast strand has a first roller bridge to one wide side of the cast strand and having ends defining two first section corners, a first fixed support adjacent the first roller bridge, a second roller bridge to the opposite wide side of the cast strand and having ends defining two second section corners, and a second fixed support adjacent the second roller bridge. Respective rows of rollers are rotatably mounted on each of the first and second roller bridges for engaging the respective wide sides and thereby supporting and guiding the cast strand. Respective first and second hydraulic positioners connect the first and second corners of the first and second roller bridges to the first and second fixed supports for individual positioning the rollers of the first and second roller bridges symmetrically or asymmetrically relative to the neutral phase of the cast strand.