Abstract: A structuring layer of a structuring belt for structuring a wet fibrous web in a press section of a tissue papermaking machine for manufacturing high bulk tissue paper, the structuring layer having a web-carrying side with a surface for cooperating with the fibrous web, the surface having depressions distributed over the web-carrying side and forming a three-dimensional structure of the surface. The depressions altogether constitute 20-80% of the surface. Each depression has a dimension l of 0.25-2.5 mm in a first direction in the plane of the top surface area, a dimension b of 0.25-2.0 mm in a second direction in the plane of the top surface area, such directions being at right angles to each other, a mean depth d of 0.05-0.6 mm, and an area a as measured in the plane of the top surface area of 0.063-5.0 mm2.

Abstract: A method and system are provided for airflow management in a data center. The data center includes network elements, sensors, and heating, cooling and ventilation (HVAC) equipment. The sensors measure climate conditions in the data center and provide an airflow management system with measurements that are utilized to determine which areas in the data center violate data center temperature thresholds and require more air capacity. The airflow management system increases the airflow to areas that contribute to the violation by controlling HVAC equipment to increase air movement or by selecting other areas in the data center or external to the data center that have excess capacity and routing the excess capacity to the areas that contribute to the violation.

Abstract: A method of installing an industrial fabric on a machine configured to utilize such a fabric includes as a first step: (a) providing an industrial fabric having: a plurality of machine direction (MD) yarns, the MD yarns forming seam loops at first and second ends of the fabric; a first flap attached adjacent the first end and underlying a first portion of the fabric, the first flap including a first zipper track on an edge portion thereof; and a second flap attached adjacent the second end and underlying a second portion of the fabric, the second flap including a second zipper on an edge portion thereof, the second flap able to stretch elastically such that the distance between its attachment to the second portion of the fabric and the second zipper track can increase when a load is applied to the second zipper track.

Abstract: A method of installing an industrial fabric on a machine configured to utilize such a fabric includes as a first step: (a) providing an industrial fabric having: a plurality of machine direction (MD) yarns, the MD yarns forming seam loops at first and second ends of the fabric; a first flap attached adjacent the first end and underlying a first portion of the fabric, the first flap including a first zipper track on an edge portion thereof; and a second flap attached adjacent the second end and underlying a second portion of the fabric, the second flap including a second zipper on an edge portion thereof, the second flap able to stretch elastically such that the distance between its attachment to the second portion of the fabric and the second zipper track can increase when a load is applied to the second zipper track.

Abstract: A paper machine fabric leader includes a leader having a first end, a second end, a first leader face and a second leader face, the first end being connected to a paper machine fabric; and a solid sheet cover attached to the first leader face of the leader. A method for making the paper machine fabric leader is also disclosed.

Abstract: A leader cloth for pulling and installing a belt body onto rolls in a paper machine able to pass between rolls with a small clearance and capable of preventing sag or deflection. At a position near the base portion and a position closer to the apex portion of the leader cloth, stabilizers of a rope or belt-like shape are attached in the width direction to opposite surfaces. Preferably, a sticking fastener is used for the stabilizers The rear face of one piece of the sticking fastener is attached on the surface of the leader cloth by means of stitching to expose sticking face (L-like shaped hooks or loops). The sticking face of the other piece of the sticking fastener is forcefully pressed against the first while applying a tensile force in the width direction to stick the two pieces to each other.

Abstract: A frame for a twin-wire press is disclosed including pairs of side members including upper and lower side members arranged on opposite sides of the press, between which upper and lower rolls are attached, a plurality of transverse beams arranged between the pairs of side members which themselves are sections of flat sheet metal and spacers for mutually releasably connecting the side members with the sheet metal being formed so that it permits a degree of curing in the vertical plane to facilitate access to the space between the upper and lower rolls. A method for exchanging wire in a twin-wire press of this type is also disclosed.

Abstract: Equipment for fabric guiding in a paper machine has a fabric (10) and rolls (12–18) adapted to support it. In connection with the roll (17) end there is arranged equipment comprising a stand (19) and a nip guard (26). The stand (19) includes a transfer base (20) as well as transfer equipment (22) for moving the transfer base (20). The equipment further comprises an edge detector (23) for the roll (17) arranged on the opposite side of the fabric (10), for which edge detector there is a vertical bracket (25) arranged in the stand (19). The vertical bracket (25) and the nip guard (26) form an integrated sheet-metal construction.

Abstract: A multi-tier fabric loading harness for installing a fabric onto a papermaking machine. The loading harness has a first portion with a supporting rigid member that attaches to an end of the fabric in the cross-machine direction and a plurality of apertures spaced across its width. The first tier is formed by a rope sequentially laced through the apertures to form self-aligning loops. A second rope is sequentially laced through the loops of the first tier to form self-aligning loops for a second tier. A pull ring gathers the loops of the second tier and is used to pull the fabric onto the papermaking machine.

Abstract: A multi-tier fabric loading harness for installing a fabric onto a papermaking machine. The loading harness has a first portion with a supporting rigid member that attaches to an end of the fabric in the cross-machine direction and a plurality of apertures spaced across its width. The first tier is formed by a rope sequentially laced through the apertures to form self-aligning loops. A second rope is sequentially laced through the loops of the first tier to form self-aligning loops for a second tier. A pull ring gathers the loops of the second tier and is used to pull the fabric onto the papermaking machine.

Abstract: A leader which is used to pull a seamable papermaker's fabric onto a paper machine comprising a ravel area for securing pull ropes or cables thereto.

Abstract: The invention relates to a degassing centrifugal apparatus such as a pump having energy recovery means and to a process for degassing a fluid. The apparatus has a rotatable hollow rotor connected to a fluid inlet at one end and a liquid outlet at the opposite end. A gas exhaust is connected to the center of the apparatus. The apparatus has at its inlet end means for bringing a fluid to rotate on the inner wall of said rotor. The apparatus comprises a turbine at its outlet end recovering excess dynamic energy from the rotating fluid. The apparatus is especially useful for centrifugal degassing of backwater in the production of paper or board machine.

Abstract: Felt changing device and procedure for changing an endless felt, in which procedure an endless felt is placed around rollers. In the procedure, an elongated lifting beam (4) with the endless felt (5) placed around it is attached to the first end (3) of a first roller (1). The fixtures holding the first end of the first roller secured are released and the first end of the roller, supported by the lifting beam, is raised. The felt around the lifting beam is passed under the first roller and around the first roller and the other rollers (2) and the first roller is lowered and secured.

Abstract: A leader used to pull a seamable papermaker's fabric onto a paper machine comprising at least one section of material comprising yarns which are so oriented so as to distribute the load evenly across and down the fabric.

Abstract: A leader having a shape substantially that of a triangle which is used to pull a seamable papermaker's fabric onto a paper machine comprising a plastic coated substrate having plastic reinforcing strips thereon.

Abstract: An apparatus and method for guiding the transverse position of a fabric in a paper machine, such as a drying wire, a press felt, or an equivalent fabric having an alignment roll for the fabric. The axial alignment of the alignment roll is regulated by a guide apparatus. In the guide apparatus, a sledge is arranged in connection with one or both of the bearing supports of the alignment roll. The position of the sledge in relation to the frame part of the apparatus is regulated by an actuator motor. The sledge of the guide apparatus is arranged on linear guides in the frame part of the apparatus and is guided by guides. The apparatus further includes a self-holding power transmission arrangement operated by the actuator motor.

Abstract: A papermaker felt that is formed in a conventional manner and the ends thereof being interconnected at a seam to form an endless construction. Extruded monofilaments are secured in a machine direction to the underside of the felt in spaced parallel relation and overlie the area of the seam, wherein the seam area is protected from abrasion and the spaces between the monofilaments define channels for expressing water therethrough in the use of the felt in the endless form thereof in the press section of a paper making machine.

Abstract: A self-aligning fabric loading harness for installing a fabric body having a leading edge and a plurality of spaced empty grommets disposed proximate to the leading edge onto a papermaking machine, the harness including a line receiving device, having an aperture, spaced from the leading edge; and a line, having first and second ends, being successively and slidably laced through the line receiving device aperture and the aperture of each empty grommet, the first and second ends of the line being separately secured, and a method for installing a fabric body using that harness. The harness and method being particularly useful for installing dryer fabrics onto paper machines.

Abstract: A method for installing a fabric body onto a paper machine includes providing a self-aligning fabric loading harness having a leading edge and a plurality of spaced empty grommets disposed approximate to the leading edge, securing a pull rope through the loading hardness and a line receiving device, pulling the pull rope, and automatically readjusting the pull rope through the loading hardness to achieve uniform tension across the fabric.

Abstract: Method and device in a compact press section of a paper machine for replacement of press rolls and fabrics. Above the compact combination of press rolls, there is an open space between the front frame and the rear frame of the press section. By means of this space, the press rolls and the upper fabrics can be replaced by raising and lowering, e.g. by means of a crane mounted on the ceiling. The press roll that forms the second press nip in the press section together with the center roll is supported on an opening and loading mechanism to which hydraulic cylinders are connected, by means of which cylinders both the second nip is loaded with a suitable linear load and the mechanism is pivoted to the open position or positions. The movements of lateral parts of the mechanism are synchronized with each other by means of a connecting part fitted between them.

Abstract: Method and device in a compact press section of a paper machine for balancing of its static and dynamic properties as well as for replacing of the press rolls and fabrics. The press rolls form a compact press roll combination. A space is located in and above the press roll combination between the front and rear frame parts which can be opened and closed. By means of this space at least the upper fabrics and the upper press rolls in the press section are replaced by means of a crane mounted on the ceiling or equivalent, preferably substantially by direct raising and lowering. The front and rear frame parts are interconnected rigidly at and above the press roll combination by means of a rigid intermediate frame part. The intermediate frame part operates as the frame part of the tensioning device of the first upper fabric, and the intermediate frame part together with the upper fabric tensioning device and the tensioning roll.

Abstract: The invention relates to a method and an arrangement for supporting the frame of a paper machine or the like. In the method, the frame is supported at a point below it for the time the wire or felt is being changed by means of a separate support member (11) on a normal frame supporting structure (1), whereby it is not necessary to strengthen or support the other structures during the change. The arrangement comprises a support member (11) provided under the frame and comprising a support (14) arranged to be displaced so as to rest on a support element (15) attached to the supporting structure (1) to support the frame. The support (14) supports the frame on its normal supporting structure (1) while the lower vertical spacers (9) of the frame are out of place.

Abstract: A device for drawing in an endless belt into a machine which manufactures paper, cardboard, or the like, includes a frame having a draw-in side over which the belt is drawn in and having an opposite side. An auxiliary support for the belt and off which the belt is transferred is moved up to the draw-in side of the frame. The frame has at least one cantilever piece extending beyond the draw-in side toward the auxiliary support. The auxiliary support has a corresponding cantilever arm. A lift device joins the cantilever arm with a respective cantilever piece to provide lift of the cantilever piece. The frame on the draw-in side has a removable intermediate piece, removable to permit the belt to be drawn in while the cantilever arm supports the cantilever piece and thereby supports the draw-in side of the frame. With the intermediate piece reinstalled in the draw-in side of the frame, the auxiliary support may be removed. In a one-belt height arrangement, the auxiliary support is generally C-shaped.

Abstract: A papermaker's felt having an elongated base fabric, at least one batt layer, and means to interconnect the opposite longitudinal ends of the base fabric to make an endless felt. The endless felt is made by providing seaming loops on opposite longitudinal ends of the base fabric and bringing the loops into interdigitated engagement on the papter making machine; introducing a core element into the common bight of said loops to connect them; and finally needling the batt layer so that the abutting ends thereof (which abut each other at right angles to the longitudinal direction and obliquely to the thickness direction) are engaged without any opening between them.

Abstract: A method of making a papermaker's felt which includes the steps of forming a pin seam fabric having interdigitated loops at the ends of the fabric joined by a pin. A batt of fibrous material is needled into at least one face of the fabric and across the pin seam joint. When the felt is to be installed on the papermaking machine, the pin is removed and the felt is bent back on itself at the joint to bring the portions of the batt adjacent the joint into contiguous or contacting relation and cause the loops to separate. The batt is then cut along a line extending through the separated loops to provide a flat or opened felt which can then be installed on the papermaking machine. After installation, the loops are interdigitated and the pin is reinserted through the loops to provide the endless felt construction.

Abstract: A frame construction and method in a paper machine press section having a compact press roll combination forming at least two press nips through which a paper web runs, the frame consturction and method facilitating the removal and replacement of the fabrics and/or press rolls. The frame consturction of the press section includes, in the direction of web run through the press section, a front frame situated before the press roll combination and a rear frame separate from the front frame situated after the roll combination. The space above the roll combination and between the front and rear frames is open or openable through the provision of an intermediate frame situated above the roll combination. The intermediate frame is pivotally mounted on the rear frame about a transverse axis located at a longitudinal side of the roll combination.

Abstract: A frame construction and method in a paper machine press section having a compact press roll combination forming at least two press nips through which a paper web runs, the frame construction and method facilitating the removal and replacement of the fabrics and/or press rolls. The frame construction includes a front frame situated before the press roll combination and a rear frame separate from the front frame situated after the roll combination. The space above the roll combination and between the front and rear frames is opened or openable by pivoting an intermediate frame situated above the roll combination into an open position. The replacement of fabrics and press rolls are carried out by utilizing the open space obtained by pivoting the intermediate frame.

Abstract: A felt for use in the press section of papermaking machines. The felt consists of a woven base preferably of two layers of threads extending in the machine direction of the felt and cross-machine direction threads interconnect the machine-direction threads, the woven base having a batt needed onto at least one of its faces. The felt is manufactured to be installed in flat form but after its installation in the machine its ends are joined together to form an endless cloth with the aid of a seam known per se. A flap of the batt or batts is arranged to cover the seam area. The invention also concerns a method of manufacturing and installing the felt in the press section of papermaking machines.

Abstract: Method for changing a felt (20) in the press section of a paper machine. The normal run of said felt (20) passes in a substantial part in spaces (K) under the floor level (T--T) of the paper machine hall. In said press section its lower roll (12) is rotatably carried in support by one or several cantilevered beams (30). In the procedure the frame inserts (38) carrying one end of said cantilevered beam (30) are first removed and then lifting means (33,33') provided in conjunction with said cantilevered beam (30) is used to lift the guide roll or guide rolls (15,17) coming to lie within the loop of the felt to be changed and located in the underside space (K), into an upper position (15,15') to be adjacent to the cantilevered beam (30).

Abstract: Disclosed is an improved heated can roll for papermaking machines having a high thermal efficiency. The improvement is in a means for insulating the ends of the internally heated can rolls to provide segmental heat insulating part spaced from the roll end or head to provide an air space adjacent to the head or roll ends, resulting in a large reduction in heat loss through natural convection, convection due to rotation, forced convection due to air draft, and radiation and resulting in a more uniform drying surface temperature.

Abstract: A method and apparatus for introducing an endless fabric loop over rolls in a paper making machine in connection with changing the fabric therein comprising an inflatable changing bag which, upon being inflated, has a vertical cross-sectional configuration in the machine direction which is substantially the same as the configuration of the intended run of the fabric loop over the rolls. The changing bag is located in its deflated condition within the fabric loop which is to be introduced over the rolls whereupon the bag is inflated with the fabric loop encircling the same. The assembly of the inflated changing bag and the encircling fabric loop is located on one side of the paper machine in the region adjacent to the rolls onto which the fabric loop is to be introduced whereupon the fabric loop is moved from over the inflated changing bag onto the paper machine so that it encircles the rolls.

Abstract: Beam means are provided for facilitating stringing of a forming belt into position with respect to the machine frame. The beam means are supported to be moved transversely from an inactive position generally rearwardly relative to the frame into a position under the front side of the frame for lifting the front side of the frame sufficiently to permit removal of supporting means under the front side of the frame for clearing a lateral passage for the lower run of the forming belt when stringing the belt into the operative position.

Abstract: A support device with air caster units is provided sufficient to lift and support heavy rollers or rolls inside an endless belt so that the rolls can be removed from within the endless belt and the endless belt replaced.

Abstract: Fabric changes at the forming section of non-cantilevered, fourdrinier, paper making machines are simplified through use of one or more C-shaped carriages which carry the new fabric and support the front framing of the machine to allow spacer blocks which normally support the front framing to be removed. This provides a gap extending the length of the forming section through which the new fabric may be moved into place and strung into operating position. Thereafter the spacer blocks are replaced and the carriages removed.

Abstract: A draping system, for use in clothing a pulp forming section with an endless belt, has a rigid top frame to receive a plurality of substantially rigid poles in mutually parallel, loop supporting relation thereon, and a lightweight lower frame having semi-rigid poles for insertion within the loop of the belt and detachable spacers for holding the semi-rigid poles in spaced apart relation, the lower frame being sufficiently light to be readily supported within the belt in loop extending relation by the belt, for transverse insertion into a forming section.

Abstract: An elongated machine frame has a plurality of uprights which are spaced longitudinally of the frame and subdivide the same into individual sections each provided with a support structure. A first plurality of rollers is cantilevered on the support structures in these sections and an endless felt web is trained about and supported by these first rollers, extending over substantially the length of the machine frame. Each section has an endless upper screen located above the felt web and defining with the same a gap in which a ply formed upon the respective upper screen is laid onto the felt web. The upper screens are each supported by a plurality of second rollers which are also cantilevered on the respective support structures. Cut-outs are provided in the support structure to permit installation and removal of the felt web and the upper screen.