Abstract: A continuous wire drive system for a needleless electrospinning apparatus, the electrospinning apparatus including an electrospinning enclosure and within which a nanoscale or submicron scale polymer fiber web is formed onto a substrate from a liquid polymer layer coated onto a plurality of continuous electrode wires passing through the electrospinning enclosure. The continuous wire drive system includes a master wire drive drum and a slave wire drive drum, each of the master wire drive drum and slave wire drive drum including a plurality of wire guides, each of the wire guides including a channel or groove for receiving one of the plurality of continuous electrode wires. The continuous wire drive system is external to the electrospinning apparatus, and the continuous wire drive system drives the plurality of continuous electrode wires through the electrospinning enclosure.

Abstract: A printer including: a platen roller; a housing that holds the platen roller; and a print head that is mounted on the housing and performs printing on a sheet; wherein the platen roller includes a columnar straight part, and a first taper part that is formed on both ends of the straight part and has a diameter which changes towards an outside from the straight part along an axial direction.

Abstract: A sheet feed rolling element for an electrophotographic device includes a roller portion and shoulders on both sides formed by curved chamfers. A parting line between the fixed mold plate and the movable mold plate of an injection mold is located at the boundary between one shoulder and the roller portion outer periphery, a step is provided at the boundary due to a difference between the opening diameter of the cavity portion defined by the fixed mold plate and the opening diameter of the cavity portion defined by the movable mold plate so the one shoulder has a smaller diameter than the outer peripheral surface, and a chamfer is provided adjacent to the one shoulder to absorb any difference in molding shrinkage rate due to a difference in molecular orientation of resin at the step, thereby preventing circumferential bulging on the outer periphery of the formed roller portion.

Abstract: Disclosed is a device for correcting an edge portion of a sheet material, including a first roller provided in a sheet material conveying path, a second roller including a center shaft and side rollers provided at both sides thereof, the center shaft having an outer diameter less than a minimum diameter of the side rollers, each of the side rollers having an outer diameter increasing from a center side to an outer side thereof, and a pressing unit configured to cause the second roller to bend toward the first roller to press the side rollers of the second roller against the first roller.

Abstract: A method for assembling a set of bearing assemblies 100 onto a mill roll 10 and for establishing a required bearing setting. The mill roll 10 is configured to receive a set of bearing assemblies 100 at each axial end, with the bearing rolling elements 100A contained within supporting chocks 102 adapted for placement within a mill housing. The chock assembly 102R and bearing assembly 100 at a first end of the roll are positioned first, and coupled to the first end an axial center rod 22 passing through an axial bore 24 of the roll 12. The chock assembly 102L and bearing assembly 100 at the second end of the roll 12 is then positioned onto the opposite end of the roll 12, and a connecting sub-assembly 300, 400, 504A is secured to the second end of the axial center rod 22. The connecting sub-assembly engages the second chock assembly 102L and bearing assembly 100, and is adjusted to achieve a desired bearing setting for both bearing assemblies 100 through the center rod 22.

Abstract: A method for the manufacture of a profile having a cross-section of different thicknesses from a flat metal strip is provided. In this process, a roller pair produces at least one first recess on at least one side of the metal strip, the recess being widened by following roller pairs with incrementally enlarged recess width to form a region with a reduced material thickness. The aim of the invention is to improve the production process, in particular to avoid the formation of undulations during the production of the profile. For this purpose, the invention provides that regions of the flat metal strip which are arranged adjacent to the at least one recess are bent up before and/or during an engagement of a roller pair.

Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.

Abstract: An automated banking machine (10) includes a sheet picking mechanism (210). The sheet picking mechanism includes a rotatable picking member (212). With each rotation an end sheet (266) can be picked from a stack (264) of sheets. The picking member (212) has an outer surface section that includes a high friction portion (256) axially adjacent to a low friction portion (258). The low friction portion comprises an arcuate projecting portion that reduces risk of damage to a leading edge area of the end sheet due to opposed picking and stripping forces.

Abstract: In various embodiments, a tapered thread roll, a set of tapered thread rolls, a thread rolling tool, and a thread rolling method are provided for rolling angled or tapered threads onto a workpiece to create a threaded workpiece. In at least one embodiment, the threaded workpiece may comprise a polished rod or a polished rod precursor as specified by the American Petroleum Institute for use in an oil-field sucker-type pump, for example.

Abstract: A rotary part, in particular a spreader roller for a web-processing machine has a supporting core with a longitudinal axis, said supporting core being mounted at its two longitudinal ends, and having an elastically flexible outer sleeve which surrounds the supporting core in its circumferential direction and extends, in at least some sections, between the two longitudinal ends of the supporting core. The outer sleeve on the supporting core is non-displaceably mounted on at least one bearing and that the outer sleeve is mounted on at least one displacing point at a distance from the bearing so as to be displaceable perpendicular to the longitudinal axis of the supporting core in order for the curvature of the outer sleeve to be adjustable.

Abstract: Providing a roller to prevent drag of a colorant, which is jetted on an electric wire and not dried yet, the guide roller 62 is arranged at a downstream side of a coloring nozzle 31, which jets a colorant Cm toward a highest point 3b of an outer surface of the electric wire 3 moving along a lengthwise direction thereof, in a moving direction of the electric wire 3. The guide roller 62 is formed with a pair of tapered surfaces 62b catching and supporting the electric wire 3 and approaching to each other in accordance with nearing to a rotating axis C. When a radius REW of the electric wire 3 is 1.2 mm, an angle ?T formed by the pair of tapered surfaces 62b is designed at least 60 degrees and not more than ?x degrees.

Abstract: A paint roller (10) has a frustoconically-shaped applicator (12), a paint-absorbable member (14) and a movement coupler (16). The applicator (12) has a coupling portion (18) and two opposite ends (20, 22) and is rotatable at the coupling portion (18) about a rotary axis (24). The end (20) is a coupling end (20) that has a planar cross-section smaller than that of the other end (22). The coupling portion (18) is formed at the coupling end (20) and is disposed centrally thereat. The movement coupler (16) has a rotary connecting portion (40) that is detachably coupled to the applicator (12) at the coupling portion (40) that is detachably coupled to the applicator (12) at the coupling portion (18) for rotary movement about the rotary axis (24) and a pivotal connecting portion (42) that is adapted to coact with a pivot mount of a handle (not shown) for pivotal movement of the applicator (12).

Abstract: A membrane applicator comprises a wheeled carriage adapted to ride on a surface to be covered with the membrane. A roll mount system is provided on the carriage to support a roll of membrane thereon. A press roll is mounted to the carriage for pressing the membrane against the surface to be covered as the membrane is being unrolled from said roll mount system as a result of a displacement of the carriage on the surface. The applicator is particularly well suited for applying bituminous membrane on flat roof surfaces of commercial and industrial buildings.

Abstract: A cover peeling machine includes a pair of rolls. The roll has an almost conical shape. Both of the rolls are rotated in a reverse direction. The direction of the rotation is an inward direction as seen from above. A golf ball is put close to a tip of the roll. In the vicinity of the tip, a distance between a nip of the roll and the golf ball is short. Therefore, a clip portion formed on the golf ball can be easily bitten between the rolls. With the rotation of the roll, a cover is peeled from a core. A groove formed on a surface of the roll can prevent the roll and the cover from slipping. After the removal, the cover and the core are recycled respectively.

Abstract: An apparatus for automated fabric lay-up of composite laminates 10 is provided, including an automatic dispensing assembly 12 dispensing pre-preg fabric 14 in a dispensing direction 30. The apparatus 10 further includes a roller element 38 having a contact surface 40 in communication with the pre-preg fabric 14. The roller element 38 rotates such that the contact surface 40 induces lateral tension in the pre-preg fabric 14 over which it rolls such that wrinkles are removed.

Abstract: An image forming apparatus includes a transfer roller pressed against an image carrier for transferring an image from the image carrier to a recording medium being conveyed via a nip between the transfer roller and the image carrier. The transfer roller is positioned in an angular range of less than ±90° from the top of said image carrier in the direction of rotation of the image carrier. In addition, the transfer roller has a greater diameter at its opposite end portions than at its center portion in the axial direction thereof.

Abstract: An apparatus is disclosed for reshaping a butt joint formed by a pair of adjacent butt edges of mounted wallboards. The apparatus has tapering means, which includes a body with a pair of beveled surfaces for contacting and simultaneously tapering the adjacent butt edges. The apparatus also has aligning means, which includes a ridge for aligning the tapering means with the butt joint. In one embodiment, the apparatus includes a handle and the tapering means is a rotatable wheel attached to one end of the handle and having the ridge and beveled surfaces on its circumferential edge. In another embodiment, the tapering means is a semicircular disk that is fixedly attached to one end of the handle and has an outer curved portion with the ridge and beveled surfaces thereon.

Abstract: The invention relates to rolls for use in spreading webs and minimizing the formation of wrinkles therein. The roll has a diameter in its central region that is greater than the diameter proximate its end portions. The diameter can taper straight from the central portion to the ends, can parabolically taper from the central portion to the ends, can utilize a combination of a parabolic shape and straight taper, or other profile variations.

Abstract: A method of producing an electrically conductive roll having a proper crown shape at lower costs through a smaller number of process steps and without polishing. In this production method, a crown-shaped rubber layer is formed unitarily on a metal core by variably controlling the amount of a rubber material adhering on the metal core along the length of the metal core during extrusion of the rubber material.

Abstract: To provide a sheet conveying apparatus of low cost and high durability and also to provide an image forming apparatus having the same. A sheet S1 is pinched and conveyed by a metal driving roller having roughness provide on its surface and a pinch roller coming in pressure contact with the driving roller and thereby driven to rotate. And the pinch roller is formed of synthetic resin, so that the pinch roller can be manufactured less costly and the durability of the same can be increased.

Abstract: An image forming apparatus includes a transfer roller pressed against an image carrier for transferring an image from the image carrier to a recording medium being conveyed via a nip between the transfer roller and the image carrier. The transfer roller is positioned in an angular range of less than ±90° from the top of said image carrier in the direction of rotation of the image carrier. In addition, the transfer roller has a greater diameter at its opposite end portions than at its center portion in the axial direction thereof.

Abstract: A sintered, flanged cam pulley includes a sintered cam pulley body and an annular flange caulked to the sintered cam pulley body. The sintered cam pulley body has at an end portion thereof an axial annular projection and a stepped portion formed on an outer periphery side of the annular projection. An inner peripheral surface of the annular flange is fitted on the stepped portion of the sintered cam pulley body. The tip of the annular projection is deformed plastically from the inner to the outer periphery side of the annular projection by a caulking roller. The caulking roller has a first conical surface of a large angle and a second conical surface of a small angle contiguous to the first conical surface, the first and second conical surfaces being formed on an outer peripheral surface of the caulking roller. The annular flange is thereby caulked to the sintered cam pulley body.

Abstract: A printing plate or decorator cylinder has a tapered bore for engaging the tapered outer surface of a sleeve member which is mounted on an untapered rotatable cantilevered printing press or decorator drive shaft and the sleeve is adjustably coupled to the shaft to permit axial and circumferential adjustment of the sleeve and the cylinder as needed.

Abstract: A machine for cutting brittle materials includes a mandrel or shaft (200) having a first portion (310) with a taper, a sleeve (400) having an inner surface (410) and an outer surface (420) where the inner surface has the taper and is located adjacent to the first portion of the shaft, and a coating (890) around the outer surface where the coating has grooves (1010) extending around the sleeve.

Abstract: A vertical heat treating furnace for passing a metal strip, therethrough for heat treatment and a hearth roll applied to a heating/soaking furnace of the vertical heat treating furnace are disclosed. The hearth roll can be configured such that the taper angle of each of first taper sections continuous to a flat section at a central portion of the hearth roll from a roll axial direction is larger than the taper angle of each of second taper sections continuous to each of the first taper sections from the roll axial direction. The length Lc (mm) of the flat section and the length L1 (mm) of the first taper section can satisfy the following relationships: 0.5 Wmin≦Lc≦Wmin and Wmin≦Lc+2×L1≦Wmax−400, where Wmin is the minimum width (mm) of the metal strip, and Wmax is the maximum width (mm) of the metal strip.

Abstract: The present invention is embodied in an tool and method for structurally applying fiber stiffeners to a material. The tool inserts a plurality of fibers embedded in a transfer material through a hat stiffener and into a substrate and includes a first head, a second head, and a handle. The first head is defined by a roller having first edges and a center cutout. The cutout corresponds to the thickness of the transfer material. The second head is located at a distal end from the first head and is defined by a roller having second edges and a center groove. The groove corresponds to a thickness associated with guiding the tool along the corner of the hat stiffener. The first and second edges conform to the surface of the substrate. The center handle is coupled between the first head and second head for gripping. The first head is adapted to initially drive the fibers embedded in the transfer material through the hat stiffener and into the substrate.

Abstract: A developing roller for use in an image forming apparatus using an electrophotographic process. The image forming apparatus includes a photosensitive drum having a transcribing roller cleaning device; the developing roller disposed between a transcribing device and an exposing device adjacent to the photosensitive drum, for frictionally charging toner at a place where the developing roller contacts with a supply roller and transferring the charged toner to a developing region so as to attach the charged toner to a latent image formed on the photosensitive drum; a regulating blade disposed between the developing region and the supply roller, for regulating a toner layer on the developing layer into a thin toner layer, being in contact with the developing roller; the supply roller in contact with the developing roller, for frictionally charging the toner transferred into a contact nip by a relative motion therebetween; and an agitator for transferring the toner in a toner cartridge to the supply roller.

Abstract: The roller comprises a core (56) having an elastomeric covering which comprises an outer exposed region (60) and an intermediate region (58) positioned between the outer region (60) and the core (56). The outer region (60) has a thickness which decreases towards each end of the roller and the intermediate region (58) has a thickness which increases towards each end of the roller. When associated with another such roller to form a nip in an apparatus for wet processing sheet materials, carry-over is reduced, leakage when no sheet material is passing through the nip is reduced, and the risk of physical damage to the sheet material is reduced.

Abstract: A contact cleaning machine for removing particulates and other undesirable debris from the surfaces of articles moving along a curved path under the cleaning machine, without disturbing the orientation of the articles which cannot be clamped against movement. Cleaning is performed by a roller (22) which is mounted in the machine to roll across the tops of articles as they pass underneath. The peripheral surface (28) of the roller is coated with a tacky adhesive to lift off the undesirable particles. To avoid the roller applying differential forces to the article, the roller is made conical and convergent towards the axis of curvature of the path followed by the article. The avoidance of differential forces on the unclamped articles eliminates any tendency for the cleaning roller to turn the articles.

Abstract: Flexible press sleeve for a press roll for treating a web includes an inside surface including a longitudinal press area adapted to be pressurized with a press shoe by directing pressure radially outward, and a flexible section on at least one end of the press area having a greater flexibility than a flexibility of the press sleeve outside the flexible section, without causing a significant weakening of the press sleeve within the flexible section. A press shoe includes the press roll and a mating roll forming a press opening with the press roll. A method of treating a web includes draining a fibrous pulp web by using the press shoe.

Abstract: A method and apparatus for rotating wafers in a double sided scrubber where a rotating roller imparts rotary motion to a semiconductor wafer during a double sided cleaning process. The rotating roller and wafer contact at their outer edges and the friction between their outer edges causes the wafer to rotate. The roller has an outer edge with a groove in which the wafer edge is pinched. Treads or grooves extending from the groove channel liquids away from the groove to prevent wafer slippage when rotating and cleaning solutions are applied to the wafer.

Abstract: A laminating roll for laminating a layer of protective coating to an image-bearing layer, has a generally cylindrical metallic core and a generally cylindrical compliant and resilient covering surrounding the core. The core and covering both having positive crowns such that the diameter of the outer surfaces of the core and covering measured at central portions thereof are respectively greater than the diameters measured at end portions thereof. The differences between the diameters of the core at central and end portions of the core is greater than that of the covering. The thickness of the covering increases from the center to the ends of the roll.

Abstract: A heat and pressure roll fuser is disclosed for fixing powder images to various substrates. Each of the rolls has a deformable outer layer. One of the rollers is crowned such that its center has a larger diameter than its ends. The other roller has a uniform diameter along its entire length. The difference in the center diameter and the end diameters is such that the fuser produces a substantially uniform nip and a uniform nip velocity. A flared pressure roll is provided for controlling the speed of substrate edges to compensate for waviness along the substrate edges, such waviness being due to moisture picked up by the substrates while being stored prior to being used for duplex imaging.

Abstract: A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.

Abstract: A recording medium transport mechanism has first rotary members provided downstream of a recording area in the direction of transport of a recording medium and on the side of a recording surface of the recording medium, and a second rotary member provided downstream of the recording area and on the side opposite from the recording surface side of the recording medium to guide the recording medium in association with the first rotary members to discharge the recording medium out of the recording area, the second rotary member including a liquid absorbing member provided on its circumferential surface portions and capable of contacting the first rotary members. This recording medium transport mechanism is used in an ink jet recording apparatus to prevent a contamination on the surface of a recording medium opposite from the recording surface side.

Abstract: The present invention provides an image fixing device for fixing toner on a transfer member comprises a heat roller which is a hollow cylindrical member rotatably supported at both end portions and having heating means inside thereof, pressure means press-contacted to the heat roller for pressing the transfer member passing between the heat roller and the pressure means against to a peripheral surface of the heat roller, and the pressure means is a pressure roller disposed approximately parallel to the heat roller and supported rotatably, at least one of the heat roller and the pressure roller has a layer of elastic material on its peripheral surface, and a value A/B is set to be within a range from 0.7 to 0.8 wherein A represents a nip width at an approximate central portion of an area between the heat roller and the pressure roller where the transfer member passes through and B represents a nip width at end portions of the area.

Abstract: According to the present invention, a feeding mechanism comprises feeding members to contact with a recording medium and exert a feeding force to the recording medium, holding portions for holding the feeding members in predetermined positions, and a shaft rotatively supported axially at both ends thereof. At least one portion of the shaft is in a tapering configuration to make its end side portion thinner, hence facilitating the mounting of the feeding member while maintaining the strength of the shaft member. The present invention is also directed to a recording apparatus including such a feeding mechanism.

Abstract: In an ink jet printer having a sheet conveying mechanism which changes the speed of conveyance of a recording sheet in accordance with the density of characters or a pattern to be printed to intermittently convey the recording sheet in such a manner that all printed portions are properly dried before the sheet is conveyed to a subsequent position. The recording head of the printer performs a printing operation while pushing the front end portion of the recording sheet against the platen with a sheet retaining lever.

Abstract: A ceramic roller, including of a shell and a shaft passing through the shell characterized by at least one ball-and-socket joint between the shell and the shaft. At least one end cap is placed at an end of the shell and mounted on the shaft. A ball-and-socket joint is provided between the shell and the end caps or between the shaft and the end caps. The ball-and-socket joint is preferably obtained by the provision of an annular collar having a rounded cross section mounted between the truncated conical bearing surface of the shell and the end caps.

Abstract: In a fixing device, a core material of a fixing rotating member has two largest-diameter portions respectively located between a central portion and each end portion of the fixing rotating member, within a region where a recording material of a largest size passes, and the diameter of each core material is gradually reduced from the largest-diameter portion toward the central portion and toward the nearest end portion. The outer shape of the fixing rotating member conforms to the shape of the core material. According to this configuration, it is possible to prevent corrugation and curl of the recording material, and to provide excellent mountability of the recording material.

Abstract: A fuser apparatus for heat fusing toner images to print substrate comprising an elongated fuser roll and an elongated pressure roll. The pressure roll is supported for pressure engagement with the fuser roll to form a nip therebetween adapted to receive substrates. An oil impregnated web material and an elongated pinch roll are provided. The pinch roll has an outer surface mounted against the web material to urge the web material into contact with the fuser roll to apply release material to the fuser roll. The outer surface includes a first portion having a diameter and a length, a second portion having a diameter and a length, and a third portion having a diameter and a length. The first portion diameter is greater than the second and third portion diameter. The first portion, second portion and third portion are spaced along the axis of the pinch roller. The second portion and third portion are located at opposite ends of the pinch roll.

Abstract: A roll fuser assembly including a fuser roll and a pressure roll. The rolls are crowned and are supported in pressure engagement with each other to form a fusing nip. The pressure engagement of the rolls eliminate nonuniform nip loading in wide fusers as well as providing uniform velocity through the fuser roll/pressure roll nip. It is preferred that the crowned profile of one of the rolls be substantially to the center of the roll and that the other be offset therefrom. It is further preferred that the diameters of each of the rolls be substantially the same at each end.

Abstract: A method for securing a roll-ring onto the end of a roll-axle, comprising prefitting a roll-ring onto a roll-ring mount, and securing the mount with the roll-ring fitted thereon, onto the end of a roll axle. Securement is effected by passing one single screw-threaded bolt axially through an opening through the roll-ring mount, and tightening the bolt into a screw-threaded recess within the end of the roll-axle. The mount has a cylindrical end part (22) on which a roll-ring (30) can be secured, and the mount has an abutment surface (24) against which a roll-ring is to be pressed. Clamping structure (27, 28) presses the roll-ring against the abutment surface, and projections and recesses (25, 29, 31, 34) non-rotatably secure the mount to an end of a roll-axle. The end of the roll-axle has a conical recess in which a conical external surface on the roll-ring mount shape-matingly fits.