Abstract: A segmented roll has a plurality of end-to-end mounted roll segments (10, 10′), each adapted to rotate on bearings supported on a separate support shaft (11). In both axial end surfaces of the support shafts (11) of the roll segments (10) there are coupling means such as an annular projection and an annular recess serving to disengageably connect two adjacent roll segments (10) to each other. The support shaft (11) has at least two parts (16, 18) whose mutual disposition is made alterable for the purpose of altering the axial length of the support shaft (11) so much that the coupling means (29, 41) of the facing axial ends of two adjacent roll segments (10) can be engaged and disengaged with each other. This arrangement makes it possible to change a single roll segment from the central area of the segmented roll without the need for disassembling the entire row of roll segments.

Abstract: A process for manufacturing a valve trim assembly. The process comprises providing a flow disk having an outer diameter, an inner diameter, and an outer disposable flow disk portion, providing a separation disk having an outer diameter and an inner diameter, wherein the flow disk outer diameter is greater than the separation disk outer diameter, stacking the flow disk on the separation disk, and removing the outer disposable flow disk portion creating a reduced flow disk outer diameter. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. §1.72(b).

Abstract: The invention is intended to reduce the installation cost and running cost, minimize the production cost and increase the tooth surface strength of hypoid teeth.

Abstract: A pressure roller for a fixing device is manufactured by extruding silicone rubber on a shaft, foaming the extruded silicone rubber, subjecting the foamed silicone rubber to primary and secondary heat treatments, polishing the heat-treated silicone rubber, and then disposing the polished silicone rubber in a resin tube. In accordance with one embodiment, the pressure roller includes a shaft, a first silicone rubber layer formed on the shaft so as to surround the shaft, a resin tube formed on the first silicone rubber layer so as to surround the shaft, the resin tube having extensions at opposite ends thereof, each extension extending beyond the opposite ends of the first silicone rubber layer, and second silicone rubber layers formed at respective opposite ends of the first silicone rubber layer between the extensions of the resin tube and the shaft. The second silicone rubber layers serve to couple the first silicone rubber layer to the resin tube.

Abstract: A tool for driving a stator slide under a stator wedge within a radial slot of a stator core includes a frame including a pair of elongated rail members, the frame provided with a pair of handles at respective opposite ends of the elongated rail members. A force application cart is located between the rail members, the force application cart having a drive block thereon. A drive is connected to the frame, substantially intermediate opposite ends of the frame, the drive having an on/off trigger located on one of the handles. A lead screw is threadably engaged at one end with the force application cart and connected at an opposite end to the drive such that the drive rotates the lead screw when actuate; wherein in use, rotation of the lead screw causes axial movement of the force application cart and the drive block along the elongated rail members.

Abstract: A thermoroll for a paper/board machine or a finishing machine, the thermoroll having a shell of metallic, ceramic or composite material, and the shell having ducts for passing a heating medium from one axial end of the thermoroll to the other axial end of the thermoroll. The shell is made by casting or by powder metallurgical methods, and the ducts are formed in the matrix material of the shell which is metal and/or ceramic.

Abstract: Compressor shoe is manufactured by cutting a wire into cut pieces each having a volume approximately equivalent to that of a desired shoe. The cut piece is sequentially forged with forging dies having three cavities. The cut piece is first forged to a cylindrical shape with a small rounded portion, then to a rugby ball shape, and then to a shape corresponding to a shoe shape. A finishing step, including heat treatment, is then carried out to obtain a compressor shoe.

Abstract: A hollow element such as a turbine blade is manufactured by cutting a metallic member into first and second pieces so that each has a cut side and an opposite uncut side. The cut sides are machined to form interior features of the element. The uncut sides are machined to form exterior features of the element. The pieces are assembled with the cut sides facing each other and the assembly is diffusion bonded.

Abstract: An apparatus for manufacturing a cell of a recuperator wherein the cell includes a plurality of primary surface sheets, a plurality of spacer bars and a pair of guide vanes. A fixture has a top portion and a bottom portion. The top portion is pivotably movable between an open or loading position and a closed or welding position. A plurality of the spacer bars, plurality of primary surface sheets and a pair of guide vanes are positioned in the fixture in a preestablished relationship and are fixedly attached one to another by a tack welding machine. A controller operative controls the tack welding machine.

Abstract: A cylinder block for an axial piston pump or motor is formed from a steel material. The block includes a plurality of bores that each have an internal bore surface of a predefined final material surface finish. The bores are subjected to various machining and heat treating processes to provide a bore surface formed from the same material as the cylinder block, and which has the desired final surface finish. Pistons are mounted within each of the bores for axial movement relative to the cylinder block. Each of the pistons is formed from a steel material and has an exterior surface that is in sliding contact with the internal bore surface. The subject cylinder block is processed to provide a steel-to-steel interface between the bore and piston and eliminates the need for liners to be specially formed or installed within each piston bore.

Abstract: Shroud covers for buckets of gas turbines sometimes overlap one another. To repair a shroud cover overlap and preclude further overlap during turbine operation, a first weld bead of high hardness material is applied along the radial inside surface of the overlapping cover and adjacent an intermediate edge of the Z-shaped edges of the covers. Additional weld beads of a more ductile material are applied along the same surface behind the initial weld bead to structurally support the high hardness initially applied weld material. By building up weld material along the inside radial face of the overlapping cover adjacent the overlapped edge of the adjoining cover, the thickness of the overlapping cover is increased to preclude shroud cover overlap during further turbine operation.

Abstract: A method is provided for forming a catalytic converter that includes a catalyst substrate having a noncircular circumference and surrounded by a metal housing. The catalyst substrate is initially measured to determine the radial dimension of the substrate circumference relative to a central axis. The substrate is wrapped in a compressible mat and arranged within a metal tube. The arrangement is subjected to a spin-forming process that forms the metal tube about the catalyst substrate. The spin-forming process includes rotating the metal tube about the substrate axis, while concurrently urging a metal-forming tool against the metal tube. The metal-forming tool is programmed to follow a metal-forming path corresponding to the substrate circumference plus a predetermined radial distance. In this manner, a metal housing is formed having a noncircular circumference corresponding in shape to the catalyst substrate and spaced apart by a uniform insulative layer.

Abstract: The invention relates to a method for providing a roll (1) for a paper machine with sliding bearings, the roll comprising a stationary roll axle (3) and a tubular roll mantle (2) arranged to revolve around it. In the method, the roll mantle (2) is supported on the roll axle (3) by means of hydraulic sliding bearing members (4a, 4b, 5a, 5b; 25, 28; 40a, 40b) which are arranged to accomplish radial fitting with bearings of the roll mantle in the loading direction and in the lateral direction with respect to it, and the axial fitting with bearings of the roll mantle. The sliding bearing members are loaded by means of a hydraulic medium, the feed of which to the sliding bearing members is controlled by means of control valves (6; 30; 40).

Abstract: An inspection fixture and line is used to accurately determine the geometry and dimensional accuracy of a circular recuperator core. With the fixture and line inspection of a length, an inner diameter and an outer diameter of the circular recuperator core are completed. The method of using the fixture and the line further insures the concentricity of a donor inlet duct and a donor outlet duct.

Abstract: The present invention relates to an end packing (20, 40, 60, 70, 80) for a deflection compensated roll. The roll including a stationary shaft (1) and a roll shell (2), bearing-mounted rotatably therearound and having each end thereof provided with a shaft-enclosing annular end cap (3). The end cap (3) has its surface internal in the axial direction of the roll or its surface external in the axial direction formed with a sealing surface (10, 50, 61, 71, 81). The end packing elements (20, 40, 60, 70, 80) are provided with an annular packing member (12; 42; 62; 72; 82) extending around the shaft (2) and including a front face, which is directed towards said sealing surface (10, 50, 61, 71, 81) and which is in contact with the sealing surface (10, 50) or separated from the sealing surface (61, 71, 81) by a gap constituting an axially directed narrow slot.

Abstract: A method of fabricating a scroll compressor of the type including an electric motor in driving engagement with an orbiting scroll member having an orbiting scroll vane in a shell extending along an axis between open ends. The method includes the steps of orientating the fixed scroll member angularly about the axis of the shell relative to the orbiting scroll member, and pressing the fixed scroll member having a fixed scroll vane axially into sealing engagement with the shell and into a predetermined spaced relationship with the orbiting scroll member with the scroll vanes of the scroll members in axially overlapping relationship for pumping action between the vanes.

Abstract: Method for manufacturing a rotor of a fluid flow machine, including: connecting rotor disks with radial welds to form a hollow passage running around the rotor axis and interrupting the welds such that welds facing a rotor are directly adjacent the hollow passage; inserting a one-piece rotor ring between two directly adjacent rotor disks so one side of the rotor ring abuts against the first rotor disk centering lip; welding the two rotor disks to one another along a weld extending in a direction of the rotor axis starting from the hollow passage enclosed by the two rotor disks, a region of the hollow passage facing away from the rotor being at least partly open at the hollow passage's peripheral outside; displacing the rotor ring toward the second rotor disk; positioning the rotor ring over the hollow passage; and welding the rotor ring to the first, then the second, disk.

Abstract: A developing roller has a roller core, an electrically conductive layer provided on a circumferential surface of the roller core, and a covering layer provided on the outer circumferential surface of the conductive layer. The covering layer is formed by subjecting a reaction mixture containing a fluorine-containing polyol, a reactive silicone oil having an active hydrogen, and an isocyanate compound, to a reaction condition for reacting the fluorine-containing polyol and the reactive silicone oil with the isocyanate compound.

Abstract: A method for aligning a circular core. The method has a work station which defines an inner chucking portion being movable between a lower position and an upper position and a retracted position and an expanded position. The work station defines an upper portion being movable between a first position and a second position and a loading position and a clamping position. The clamping position has a plurality of positions. The circular core being aligned during at least a portion of the plurality of positions. And, the work station having a welding station.

Abstract: A deflection compensated roll for a paper/board or finishing machine includes a stationary roll shaft (1), and a roll shell (2) structured and arranged to be rotatable around the same and mounted with slide bearing elements (3-6) upon the roll shaft (2). The slide bearing elements are provided with hydraulic fluid feeding means for loading the slide bearing elements with a hydraulic fluid. The roll is intended to form a nip together with a counter roll. The hydraulic fluid feeding device is provided with control elements, whereby the slide bearing elements (3, 4) acting in the direction of a nip load (F) are loadable in such a way that the roll shell (2) is able to perform a stroke relative to the roll shaft (1) radially of the roll or to remain substantially immobilized relative to the roll shaft (1).