Abstract: A method of controlling vibration of a dynamic surface includes providing at least one piezoelectric actuator in communication with the dynamic surface, and providing a mass over the at least one piezoelectric actuator so that the at least one piezoelectric actuator lies between the mass and the dynamic surface. The method includes sensing vibration of the dynamic surface, and activating the at least one piezoelectric actuator after sensing vibration of the dynamic surface for applying a counter force between the dynamic surface and the mass for reducing or controlling vibration of the dynamic surface.

Abstract: A method of controlling deflection of a dynamic surface having a predetermined shape includes sensing a change in the predetermined shape of the dynamic surface, providing at least one piezoelectric actuator in communication with the dynamic surface for applying a counter force thereto, and activating the at least one piezoelectric actuator for applying the counter force to the dynamic surface for returning the dynamic surface to the predetermined shape.

Abstract: A system for controlling deflection of a dynamic surface includes at least one sensor in communication with the dynamic surface for detecting the presence of a deflecting force on the dynamic surface and generating a feedback signal proportional to the deflecting force. The system includes a controller in communication with the at least one sensor for receiving the feedback signal and generating an output signal in response to the feedback signal. At least one piezoelectric actuator is in communication with the dynamic surface and in communication with the controller for receiving the output signal and applying a counter deflecting force on the dynamic surface for removing the deflection from the dynamic surface. In other preferred embodiments, the piezoelectric actuators maintain the dynamic surface in a preferred shape, such as a curved surface.

Abstract: A pressure roller for textile machines, in particular for a texturing machine, is provided. A covering (3) is preferably arranged over an intermediate sheath (4) on a support sheath (5). The support sheath (5) is rotatably supported via a deep groove ball bearing (1) on a carrying axle (2). For cost-effective manufacturing of a pressure roller, a standardized deep groove ball bearing (1) that has at least an outer bearing race (6, 7) and balls (9) that roll on the ball grooves (10, 11) of the bearing race (6, 7) is proposed; the outer bearing race (6) of which carries the support sheath. The structural height of the standardized deep groove ball bearing amounts to at maximum 80 percent of the axial extension of the support sheath (5).

Abstract: A method of controlling deflection of a dynamic surface having a predetermined shape includes sensing a change in the predetermined shape of the dynamic surface, providing at least one piezoelectric actuator in communication with the dynamic surface for applying a counter force thereto, and activating the at least one piezoelectric actuator for applying the counter force to the dynamic surface for returning the dynamic surface to the predetermined shape.

Abstract: A method of controlling vibration of a dynamic surface includes providing at least one piezoelectric actuator in communication with the dynamic surface, and providing a mass over the at least one piezoelectric actuator so that the at least one piezoelectric actuator lies between the mass and the dynamic surface. The method includes sensing vibration of the dynamic surface, and activating the at least one piezoelectric actuator after sensing vibration of the dynamic surface for applying a counter force between the dynamic surface and the mass for reducing or controlling vibration of the dynamic surface.

Abstract: Deflection compensating roll and method of use thereof. The deflection compensating roll comprises a carrier that is nonrotatably held by an outer bearing and is disposed within a roll shell. The invention also includes a plurality of hydrostatic support devices arranged about the outer surface of the carrier and support the roll shell. Also included is a hydraulic piston/cylinder unit having an actuating element, the outer bearing supported on the actuating element, the actuating element forcing the outer bearing toward a mating roll. A bearing surface intermediate the outer bearing and the actuating element is present, and at least one pocket located opposite the bearing surface and having a surrounding rim is also present. The pocket is connected by a restrictor to a pocket pressurized fluid source, and a gap is present intermediate the bearing surface and the rim, the pocket being further connected by a gap to an outlet.

Abstract: An arrangement of equipment in connection with a variable crown roll provided with loading shoes to prevent foaming of fluid. The arrangement includes a separate guide and a face that guides the fluid in order to guide the fluid smoothly away from the inner face of the roll mantle of the roll and into a collecting trough.

Abstract: Pressure processing roll with a roll jacket, the roll jacket rotatably mounted on a carrier by a bearing arrangement. The bearing arrangement has at least one hydrostatically supported bearing surface, which forms a gap with an opposing surface. A normal to the hydrostatically supported bearing surface, and therefore a normal force, has at least one axially oriented component. The bearing arrangement is acted upon by a predefined axially oriented force which substantially completely closes the gap in the absence of hydrostatic pressure in the hydrostatically supported bearing.

Abstract: Deflection compensation roll with a jacket lift. The deflection compensation roll includes a carrier that is fixed against rotation, a support device coupled to the carrier, a jacket rotatably mounted on the support device, and a radial seal and an axial seal positioned between the jacket and the carrier. A ring groove is coupled to one of the jacket and the carrier, a ring body is arranged for axial movement in the ring groove. The ring body includes a face adjacent to an atmosphere outside of the jacket and a circumference. A cylindrical sealing surface is coupled to the other of the jacket and the carrier. An axial sealing lip is located on the face adjacent to the atmosphere to contact a side wall of the ring groove, and a radial sealing lip is located on the circumference to contact, and to rotate relative to, the cylindrical sealing surface.

Abstract: A roll, in particular a variable-crown roll, including a frame beam, an axle journal arranged at each end of the frame beam and a revolving roll mantle mounted by bearings on support of the axle journals. A glide shoe is arranged on the frame beam to act on the roll mantle in order to produce a loading pressure in a nip defined between the roll and a back-up roll. A hose filled with fluid is situated between the glide shoe and the frame beam in order to equalize the loading pressure transferred through the glide shoe in the longitudinal direction of the roll.

Abstract: A sliver supplying apparatus for simultaneously feeding a plurality of slivers to a draw frame includes an intake table; a plurality of supply rolls supported in a series by the intake table for guiding the slivers from the coiler cans to the draw frame; and an rpm-setting device for individually setting a circumferential speed of the supply rolls. The rpm-setting device includes a roll drive independent from the drive of the draw frame.

Abstract: A can-making necker machine to form the bottom and neck of two-piece metal cans has pusher rams. Each pusher has a cam follower which follows a track or groove. The cam follower is not lubricated but instead has rolling surfaces which are coated with a low-friction high-impact diamond film.

Abstract: A calender which includes a deflection-controlled roller with a rotating hollow cylinder and a non-rotating cross-head. Hydrostatic supporting elements on the cross-head can be radially displaced towards the inside circumference of the hollow cylinder, and have hydrostatic bearing pockets in their contact surfaces. The position of supporting elements are controlled using a cylinder space with a small cross-section. When there is a problem with the web, the cylinder spaces can all be hydraulically relieved, eliminating the contact pressure and therefore the exertion of force by the supporting elements.

Abstract: A large round baler includes a plurality of bale-forming rolls which each have opposite ends defined by stub shafts rotatably supported in respective bearings fixed to opposite side walls of the bale chamber. The rolls are each in the form of a hollow cylindrical drum and each stub shaft includes a flange having a diameter corresponding to the inside diameter of the drum and being secured to the drum at a location spaced inwardly from an end face of the drum. For preventing crop particles and juices from reaching each bearing, a ring-like seal body is fixed to the outer surface of the flange in concentric relationship to the stub shaft and to, and between, a cylindrical sealing surface of a collar that is fixed to the wall and a ring that is also fixed to the wall. The seal body has a plurality of radially outward projecting lips disposed very close to the sealing surface of the collar and a single radially inward projecting lip disposed very close to the ring.

Abstract: A shoe press, in particular for a paper machine, comprising a pair of rolls, with one roll having a flexible roll sleeve that rotates around a stationary carrier and support devices, the flexible roll sleeve having axial end areas and being mounted on a carrier in a radially rotatable manner at each of its axial end areas over the support devices, each roll having a shoe with a flat support surface, the support surface of the shoe of one roll supporting an interior side of the roll sleeve, the support surfaces being arranged essentially parallel to each other to create a press opening therebetween, and at least one of the support devices being radially flexible, and in particular elastic.

Abstract: Method and arrangement for automatic monitoring and correction of the regulation pressure of regulation valves in a regulation valve block in a variable-crown roll in a paper machine. The regulation pressure of the regulation valve in each regulation zone in the regulation valve block can be connected alternatingly to a reference pressure detector whose measurement signal is compared with the measurement signal of the actual value of the regulation pressure in the regulation zone concerned. The result of the comparison is stored on the page of monitoring of pressure detectors contained in the central computer system, on which page, in addition to this difference, set values and actual values of the regulation zone pressures as well as the value of the reference measurement are provided.

Abstract: A roll for use in a paper machine including a bendable roll shell disposed around a continuous roll carrier. The roll shell is supported at least in the radial direction on the roll carrier only in an axial central region. Axially outside the central region, the roll shell and/or carrier are respectively shaped and positioned that there is radial spacing between them for allowing the roll shell to bend in relation to the roll carrier under the weight of the roll shell and the force exerted by the belt, web, or the like, partially wrapped around the roll shell. To improve the behavior of the roll, the roll shell is of such material and/or shaped so that beginning from the central region, the rigidity of the roll shell decreases toward the axial ends of the roll shell in such a way that loading resulting from the dead weight of the roll shell and the operational loading on the roll shell causes desired curvature of the bending line of the roll shell.

Abstract: The device for the making a flat product (P) comprises a cylindrical wall, brought into rotation around a fixed core (1) and cooled by circulation of a fluid for the formation, of the flat product (P), onto an angular sector of the wall (2). The cooled wall on which is cast the metal is made up of a thin metal envelope forming a shell (2) simply inserted with possibility of sliding onto a circular surface (11) of the fixed core which constitute the central section of a fixed shaft (1) to hold and center the shell (2), the shaft (1) being connected with a thrust device allowing application of the shell (2) on the circular surface (11) of the shaft (1), the cooling fluid providing the lubrication of the bush thus made.

Abstract: An adjustable deflection roll including a roll sleeve or jacket supported by a plurality of support devices positioned partially within a support beam. Pressure chambers may be located between the support devices and the support beam and each pressure chamber may be coupled to a supply line. As the length of the roll increases, and as the need for increasingly more precise pressure distributions also increases, more support devices may be utilized. The adjustable deflection roll may also include a drain channel to facilitate quick relief of the pressure chambers when necessary. To accomplish this, each pressure chamber may be coupled to the drain channel furnished with the supply line such that the drain channel may be closed with a drain valve.

Abstract: A roller assembly includes a rotating hollow roller and a non-rotatable crosshead longitudinally traversing the hollow roller. The hollow roller is supported by supporting elements acting against the inner circumference of the hollow roller. Each supporting element has a hydrostatic bearing pocket, whose extension in the longitudinal direction of the roller is at least three times that in its circumferential direction. This prevents the hollow roller from deforming and prevents edge pressure from being exerted on the web surrounding the bearing pocket.

Abstract: A controlled deflection roll for a papermaking machine. The roll includes a roll shaft having a longitudinal axis, a roll shell surrounding the shaft, and a bearing pad assembly supported on the shaft to supportingly engage the shell and move the shell translationally relative to the shaft in a plane including the axis. In one embodiment, the bearing pad assembly includes a plurality of bearing pads. Each bearing pad is spaced apart in the cross-machine direction and has a contact surface engageable with the inner surface of the shell. The contact surface is in the shape of a parallelogram and defines therein at least one recess. The side edges of adjacent bearing pads are straight and parallel to each other and define gaps therebetween. The gaps do not extend along a plane which is perpendicular to the axis. In another embodiment, the bearing pad assembly includes at least one bearing pad having a contact surface and opposite edges. The contact surface has a contact surface portion engageable with the shell.

Abstract: A split roll has several separate roll bodies which are arranged side-by-side axially of the roll. Adjoining roll bodies are mounted in a bearing assembly which includes a bearing for each of the roll bodies. The two bearings for a pair of adjoining roll bodies are located in a common housing which is overlapped by the respective roll bodies.

Abstract: An adjustable deflection roll is illustrated and described having a rotating roll jacket, a carrier which passes axially through the roll jacket and is rotationally fixedly held at its ends in frames and at least one support element which is arranged on the carrier and exerts a support force on the inner side of the roll jacket in a pressing plane. The roll jacket is rotatably held on a bearing housing secured against rotation in the region of at least one of its axial ends by at least one bearing. The roll is of simple layout and easy to exchange in that the bearing housing is secured against rotation at the carrier at at least one roll end within the roll jacket or within an axial projection of the roll jacket.

Abstract: A roll having bending control has a rotating hollow roll and a non-rotatable crossbeam penetrating the hollow roll lengthwise. Arranged on the crossbeam in an axially parallel row, closely following one another, are supporting elements which can be actuated independently of one another by fluid pressurized medium. Supply lines are attached via angle units to a bar-type carrier which is fastened to the crossbeam by means of screws that can be manipulated from the outside. The screws have longitudinal bore holes through which the respective supply line is directly connected to the respective supporting element.

Abstract: A roller assembly for the high-temperature transport of articles, including a ceramic roller with a longitudinal axis and two ends; at least one generally cylindrical metal end cap at one or both ends of the roller, and means arranged between the roller end and the end cap for rotationally interconnecting the end cap and the roller (2), axially securing the end cap (4) to the roller (2), and centring the roller (2) relative to the end cap (4). The means (10) for centring the roller relative to the end cap (4) are separate from the means (12) for rotationally interconnecting the end cap and the roller (2) and for axially securing the end cap (4) to the roller (2). The means (10) for centring the roller relative to the end cap (4) may consist of bimetallic members (14) or longitudinal or radial resilient members (16).

Abstract: A roller with controllable sag is provided with a revolving hollow roller and a non-rotating crosshead that crosses the hollow roller along its length and on which the hollow roller is supported by a series of supporting elements that are actuated by a pressure medium. Separate supply lines (13) lead to the supporting element and open out into a collection head (40) at the end (10') of the crosshead, to which the outer connection lines (53) are connected. The connection head (40) comprises a double-disc rotary slide valve (50) by which the lines (13, 53) can be interrupted and which in the closed state can be separated at a separation surface (47). The individual discs (51, 52) of the double disc rotary slide valve (50) keep both the supply lines (13) and connection lines (53) closed, thus facilitating replacement of the roller as and when required.

Abstract: A method and apparatus for regulating the temperature in end areas of a roll mantle of a variable-crown roll provided with glide bearings and/or for compensating for an error in the diameter of the roll arising from thermal expansion. The roll mantle of the roll is supported adjustably on the roll axle by hydraulic loading elements loaded by a pressure medium and acting upon the inner face of the roll mantle at least in the direction of the nip plane. Further, the roll mantle is supported on the roll axle by hydraulic glide-bearing elements loaded by a pressure medium and arranged in the areas of the ends of the roll mantle. A fluid is supplied into the end areas of the roll and has a regulated temperature and/or flow so that it is possible to keep the temperature in the end areas of the roll mantle at a desired level, for example, substantially at the same level as the temperature in the middle area of the roll.

Abstract: A roll for a rolling mechanism includes a carrier and a roll jacket surrounding the latter which is rotatably journalled on the carrier by bearings arranged at a distance from another. Hydrostatic and/or hydrodynamic support elements are provided between the bearing by which the roll jacket is additionally supported on the carrier.

Abstract: An anti-deflection roll including a rotating roll sleeve, a support member or yoke that extends along the axis of the roll sleeve or jacket, and a plurality of hydrostatic and/or hydrodynamic support units, partially positioned within the support member and arranged in a predetermined spaced relation to each other, to support the roll sleeve in an axial direction. Between an inner surface of the roll sleeve and a support surface of each support unit an intermediate fluid coating layer may be formed.

Abstract: A roll including a flexible roll covering, the roll covering being rotatably arranged about a carrier and journalled on the carrier via a plurality of at least one of hydrodynamically and hydrostatically lubricated support elements, wherein support areas of at least axially adjacent support elements are closely adjacently adjoined and wherein lateral boundaries of the support areas of the axially adjacent support elements overlap with reference to a circumferential direction of the roll, with the support of the roll covering being evened out without resulting in the jamming or canting of the support elements, this being accomplished in that the support areas of the support elements are symmetrically formed transverse or cross-wise relative to the roll axis of the roll.

Abstract: A rotating sleeve coaxially mounted upon an inner nonrotating pivoting sleeve by at least two rotary bearings on either side of a center mounted pivoting bearing assembly within the nonrotating pivoting sleeve supported by a stationary shaft. The nonrotating pivoting sleeve is balance-mounted in the center of the axis shaft with the pivoting bearing assembly. The pivoting bearing assembly permits a selected degree of lateral rotation in a range of from about 1 degree to about 10 degrees. As a web runs over the rotating sleeve any imbalance of lateral tension will cause the nonrotating pivoting sleeve to pivot at it's center with respect to the longitudinal axis of the shaft permitting the nonrotating pivoting sleeve and coaxial rotating sleeve to pivot upward on the side of least tension until the web tension is equalized across the coaxial rotating sleeve.

Abstract: A roll includes a stationary carrier, a roll jacket, in particular a resilient roll jacket, on the carrier and at least one support element with an associated contact pressure piston, which is supported on the carrier in the region of a pressing zone defined between the roll jacket and a counter surface, while forming a fluid cushion between the support element and the roll jacket. In this arrangement the support element is provided with a pressing section facing the roll jacket, which is bounded in the circumferential direction of the roll by outer edges which are substantially straight and extend parallel to the roll axis, with the width of the pressing section measured between the outer edges being smaller than the maximum outer diameter of the contact pressure piston.

Abstract: The roller is provided for pressure treatment of a strip of paper, textile, plastic film, sheet metal or similar material. It includes a hollow roller made of a fiber-reinforced synthetic resin material, and a cross-beam which passes through the hollow roller lengthwise. The cross-beam is mounted at its ends, in external supports, so as not to rotate. Hydrostatic support elements are arranged on the cross-beam on the side on which pressure is exerted. The elements can be pressed against the inside circumference of the hollow roller by means of a hydraulic fluid. The support elements have a length not exceeding 20 cm in the longitudinal direction of the hollow roller, follow each other closely in the longitudinal direction of the cross-beam, and can all be controlled independently of one another.

Abstract: A roll, as in a paper making machine press section, with vibration damping, wherein the roll includes a stationary central shaft, a rotatable annular, roll shell, a plurality of hydraulic pressure chambers each with a shoe hydraulically supported therein and pressed against the interior of the annular roll shell, wherein the roll shell is subject to vibration, which vibrates the support elements. A hydraulic pressure liquid feed channel extends through the stationary shaft and communicates with each pressure chamber. A respective throttle in the form of a channel either between the feed channel and each of the pressure chambers, or one throttle channel communicating with several of the pressure chambers or a throttle channel communicating into the feed channel from the source of pressure fluid. The cross section of flow through the throttle channel is selected according to a formula, typically wherein the product d.sup.2 .times.n.sup.-1 is between 6 mm.sup.2 and 90 mm.sup.

Abstract: The invention relates to an arrangement in connection with a spreader roll drive where the driving motor (6) is directly connected to one end of the spreader roll (1). The supports (4, 5) of the spreader roll (1) comprise rubber rings (19) which are flexible and will receive the angular changes. The motor (6) shaft (8) comprises an extension shaft (14), connected to rotate the roll segments (3) placed on bearings on the arched shaft (2).

Abstract: An improved web tension control system including a shaft and a hollow cylindrical roller mounted on the shaft for rotation about the shaft and for universal pivoting movement relative to the shaft that tends to compensate for variations in the tension of a moving web or substrate passing over the hollow cylindrical roller. The hollow cylindrical roller is mounted on the shaft by a spherical bearing assembly that permits universal pivoting movement of the hollow cylindrical roller relative to the shaft and a roller bearing assembly positioned between the outer surface of the spherical bearing assembly and the inner cylindrical surface of the hollow cylindrical roller to permit free relative rotation of the roller about the shaft. In an alternate embodiment, slots may be formed in the abutting spherical surfaces of the spherical bearing assembly, and an insertable wafer can be placed in such slots to selectively limit the pivoting movement of the hollow cylindrical roller.

Abstract: A peripherally drilled roll for the heat treatment of web material, includes a roll body having axially parallel drilled passages disposed just beneath its surface for guiding a heat-carrying fluid, at least one flange pin bolted to the front end of said roll body having a central bore, supply and discharge passages for the heat-carrying fluid in the flange pin, and connecting passages in the flange pin for the axially parallel drilled passages, wherein the supply and discharge passages are formed as blind holes meeting in the flange pin and produce the flow connection between the central bore and the front end ports of the axially parallel drilled passages, and the connecting passages of the axially parallel drilled passages are configured in the flange pin as blind holes meeting therein.

Abstract: A submerged guide member for guiding a strip of metal in a molten metal coating bath in the form of a roller or fixed guide consisting of sintered, fused or vitreous silica or a mixture of at least 80% by weight of fused or vitreous silica and up to 20% by weight of one or more members of the group consisting of refractory earth elements, metal oxides and compounds of oxides, carbides, borides, oxynitrides, SiAlON, thermal decomposition products of carbosilanes, calcia, magnesia, zircon (ZrSiO.sub.4), zirconia, chromia and silicon carbide. The process concerns the deposition of a protective layer of, for example, zinc on a strip of sheet metal by submerging the metal strip in a bath of molten metal or metal alloy, and guiding the strip with one or more submerged rollers or fixed guide members of the fused silica material set forth above.

Abstract: A roll arrangement with a rotatable roll jacket, in particular an elastic roll jacket, a rotationally fixed carrier, and at least one support arrangement disposed between the roll jacket and the carrier, with the support arrangement having a foot associated with the carrier and a sliding shoe supported on the foot and movable radially relative to the roll jacket, with the sliding shoe having a support surface associated with the roll jacket which, in operation, always ensures good contact of the support surface of the sliding shoe against the roll jacket to be supported in that the foot is displaceably supported on the carrier and the support arrangement is made of at least two-part design and contains a tilting support which permits tilting of the sliding shoe relative to the carrier.

Abstract: The present invention is an improved flywheel for damping vibrations in a coating roll. The improved flywheel has an inner plate and an outer plate and sandwiched between the two plates are alternating rings of a solid body material such as aluminum or steel and conventional vibration damping material. Typically, the flywheel is attached to the coating roll outside of the bearing mounting block. The flywheel is designed such that movement of the inner and outer plates relative to each other works to compress the damping material sandwiched between the two plates. The plates are fastened together so that torsional motion between the plates, alternating rings, and coating roll is prevented. This compression of the damping material results in the absorption and dissipation of vibrational energy of the radial bending of the coating roll.

Abstract: Deflection controlled roll. A deflection controlled roll is comprised of a fixed carrier and a roll jacket rotatable about the carrier, with the roll jacket being supported on the carrier via several support elements, wherein each of the support elements has at least one cylinder-piston device, for the formation of a contact force, and a bearing shoe with a separate lubricating fluid supply and wherein the fluid supply of pressure chambers of the cylinder-piston devices is accomplished at least in separate groups, via pressure conduits, with the deflection controlled roll, even though being supported via large number of support elements, being produced in a vibration damping-manner in a simple construction, wherein the pressure conduits have substantially the same length and/or the same volume capacity for the pressure fluid.

Abstract: A guide roll having means to expand or contract independent of its support bearings to prevent bearing failures when used under elevated temperature conditions.

Abstract: Deflection adjusting roll. A deflection adjusting roll includes a plurality of hydraulic support elements for a roll jacket, wherein the support elements are provided with hydraulic pressure medium via a bore axially extending in common with the carrier as well as via further radial bores discharging into the axially extending bore with the radial bores being in communication with the support elements and separate pressure control of the pressure medium for each support element is achieved in that each one of the radially extending bores is associated with a controllable sealing and throttling element, with the sealing and throttling element being slidably disposed within the axially extending bore and so shaped and pressed against the inside surface of the axial bore that at least one connecting channel is provided between the axial bore and the radial bore, whereby the flow-through quantity of the hydraulic pressure medium is controllable via the cross section of the connecting channel.

Abstract: An induction heating roller apparatus comprises a rotatable hollow cylindrical roller body made of magnetic material, a pair of end frames for closing the opposite opening ends of the roller body, having roller driving shafts in outer sleeve form, magnetic flux generating device comprising an induction coil wound on an iron core body positioned between the pair of end frames and in the hollow portion of the roller body, a pair of sleeve-like rods projecting from the opposite end surfaces of the iron core body and inserted for relative rotation into the outer sleeve of the shafts, and a pair of auxiliary magnetic flux generating mechanism comprising auxiliary induction coils wound on annular iron cores positioned inside the end frames and fixed at the base portion at which the sleeve-like rods are connected to the iron core body, and wherein the end frames comprise fitting edges fitted in the opposite openings in the roller body, flange portions continuous with the fitting edges and adapted to be applied to th

Abstract: A rotational device such as an industrial roll includes a rotational body such as a roll body and at least one journal member in the form of a stub shaft removably mounted and terminating within a journal opening provided in an end of the body. Engaged threaded portions provided in the journal opening and on the journal member prevent withdrawal of the journal member from the journal opening or separation of the abutting transverse stop surfaces on the journal member and in the journal opening. The journal opening includes a tapered portion and a tapered sleeve is interposed radially between the tapered portion of the journal opening and the journal member. A nut threaded onto the bearing member urges the tapered sleeve into engagement with the tapered portion of the journal opening further preventing relative rotational or transverse movement between the roll body and journal member. The abutting stop surfaces accurately position the bearing member axially with respect to the rotational body.

Abstract: A composite idler roller has an integral internal bearing surface which interfits with the outer or tread portion of the roller. Flange seals or internal lubricant retaining grooves may be incorporated in the bearing surface. The outer or tread portion of the roller is inserted in a mold concentric with a core pin. The bearing material is injected into the space between the outer portion and the core pin. The centering of the outer portion may be by external contact with the mold or internal shoulder contact with the core pin. The core pin may be wholly or partly collapsible. The roller may have a wide variety of tread styles and may be stud or yoke mounted. In another form, the entire roller is formed of the bearing material.

Abstract: A machine for the manufacture of chipboards or fibreboards comprises a pressure drum (1) and an endless steel belt (2) which wraps the pressure drum (1) around part of its periphery and forms there a compacting line (P) in which is for a sufficiently long time compacted and cured, by the action of pressure and temperature, material which is brought into it and which comprises lignocellulose or cellulose, is reduced to chips or fibres and is provided with an adhesive curable by heat. The compacting pressure and the heating are produced by extensive pressure shoes (10, 13, 14, 15) comprising a hydrostatic bearing pocket (11) supplied with hot pressurised oil. The pressure drum (1) is provided with a non-rotatable carrier (19) and a jacket (20) which is rotatable about it and is supported by supporting elements (21) supplied with hot pressurised oil, so that the jacket (20) is simultaneously heated and adjustable pressure forces without bearing loading are produced, while a uniform smooth gap is obtained.

Abstract: A conveyor roller is provided including a first, elongated hollow cylindrical member having opposing ends. A second, elongated cylindrical member is disposed concentrically within the first cylindrical member has opposing ends and an outside diameter smaller than an inside diameter of the first cylindrical member so as to define a gap between an outer peripheral surface of the cylindrical member and an inner peripheral surface of the first cylindrical member. Shaft structure is coupled to the second elongated cylinder so as to extend beyond the ends thereof. Fluid lubricant is in the gap. Retaining structure is constructed and arranged to retain the second cylindrical member within the first cylindrical member in such a manner that the first cylindrical member may rotate freely about the second cylindrical member upon the fluid lubricant.

Abstract: A roller assembly for guiding webs and removing wrinkles includes an outer cylindrical surface that is supported on a shaft about which it can rotate. Portions of the outer diameter of the outer cylindrical surface can expand and contract radially using a radial expander that can move axially along the shaft. The radial expander has an increasing radius from a point closer to a central transverse axis of the roller assembly to a point further from the central transverse axis of the roller assembly so that the closer the radial expander is to the central transverse axis, the greater the radial expansion of the outer cylindrical surface.