Abstract: The invention relates to a suction roll seal strip and a method for manufacturing it from a mixture, which mostly consists of nitrile rubber and graphite. A seal blank is formed from the mixture and hardened at a chosen temperature. The mixture to be hardened includes wax.

Abstract: A regulating unit for accomplishing a linear movement includes a cylindrical frame part (1) having a cylinder part (11) and cylinder head (12), which define a piston space (131, 132), and a piston unit (2) to be moved by a pressurized medium in the piston space. The height of a first space (131), in which a piston part (22) is moveable, is bigger than the height of a piston part, the cross section area is bigger than a cross section area of a piston rod. A cross section area of a second space (132) is smaller that the cross section area of the piston part. Pressurized medium may be fed into a cavity space (15), which is between the facing surfaces of the piston part and the piston space, for moving the piston unit towards the cylinder head (12) or vice versa.

Abstract: An applicator device (1) applies surface size to at least one side of a web (W). A pressure effect is applied to the web (W) by subjecting the web (W) to an underpressure and/or to an overpressure such that surface size is forced to penetrate into the pores of the web. Most advantageously, an underpressure is created that sucks applied surface size from the surface of the web (W) into the pores in the inner layers. Surface size is applied to a web first side (W1) and a vacuum effect is applied to the web's opposite side (W2) to cause air to flow through the web (W) such that surface size moves from the first side (W1) in the direction of the second side (W2) into the web (W). Correspondingly, both sides of the web (W) can be treated in successive stages.

Abstract: An arrangement and method for improving runnability, and dryer section length, by using a vertical impingement dryer before a first dryer cylinder of a group of dryer cylinders. After a pressing section, the web is dried with a pre-impingement dryer, closely followed by a vertical impingement dryer, which is closely following by the first dryer cylinder. The pre-impingement dryer and vertical impingement dryer of the first dryer cylinder to have a drying temperature of approximately 80° C. with no undesirable sticking to the dryer cylinder. The pre-impingement dryer can be arranged to dry a first side of the web, and a vertical impingement dryer after the first dryer cylinder is arranged to dry a second side of the web. The impingement drying takes place directly against the web without an intervening fabric.

Abstract: An anode is mounted to the top of a water heater tank which has a spud with external threads welded to the top thereof. The spud extends above insulation which surrounds the water tank and covers the top of the water heater. An anode rod is inserted into the water tank through the spud and has a steel core welded to a flat cylindrical steel disk which extends radially outwardly of a magnesium cylinder formed about the core. A water sealing gasket is positioned between the disk and the annular surface formed by the open end of the spud. A nut fits over the disk and engages the threads on the spud, and clamps the anode to the spud so that the threads are isolated from water in the tank, allowing easy removal of the anode after the passage of time.

Abstract: Equipment for moving a roll in a paper machine has a movable cradle (13) for attachment to a roll (10). Two pairs of masses (16, 17) are supported rotatably on the cradle (13), in each of which there is an own drive shaft (18) for rotating the pairs of masses (16, 17). Drive devices (19) include a motor (21) and drive-train means (22). The drive-train means (22) include a pair of gears (23), which are arranged in connection with the drive shafts (18), for rotating the drive shafts (18) using a single motor (21). The drive-train means (22) also includes an adjustment element (33) for creating and adjusting the phase difference of the drive shafts (18). The adjustment element (33) is arranged between a gear (25) and the corresponding drive shaft (18), to change their position and thus to create and adjust a phase difference between the drive shafts (18).

Abstract: A vacuum belt conveyor for transferring a web threading tail in a web manufacturing machine has a frame construction (15) and an air permeable belt loop (20), which is arranged around rolls (16, 17). The vacuum belt conveyor also has a first vacuum means (22) for creating a vacuum effect for the part of the belt loop (20) that transports the web threading tail (14) and a second vacuum means (23) for creating a vacuum effect in connection with the first roll (16). The second vacuum means (23) is arranged in the frame construction (15) for creating a vacuum to be introduced to the first roll (16) inside the belt loop (20).

Abstract: A vane intended for a headbox of a paper machine or equivalent is moistened and enclosed in a vapor-proof package to ensure the straightness of the vane. At least a portion of the vane is made of a water-absorbing material, such as plastic or a composite. Advantageously, the vane contains moisture in an amount that corresponds to the equilibrium moisture content of the vane in headbox conditions. It is enclosed in a package, preferably a vacuum package, which retains the moisture of the vane until the vane is put into use.

Abstract: A winder has a scraper mounted about the axis of a winder drum for circumferential movement. The scraper has a semi-cylindrical concave surface which extends in the cross machine direction, the concave surface meets a second surface to form a scraping edge. The scraping edge engages the winder drum, scraping a web from the surface of the winder drum and pressing the web into engagement with double-sided sticky tape on a winder core with the concave surface.

Abstract: A suspended ceiling grid system has parallel main runners and perpendicular cross members which are formed of pultruded fiber-reinforced plastic. The main runners have vertical webs with regularly spaced vertical slots. The cross members are connected to each other and to the main runners by resilient extruded PVC cross connectors which pass through the main runner web slots and resiliently engage the ends of the cross members. The cross connectors have a horizontal element which is received within horizontal slots in the ends of the cross members, and two vertical elements which engage the cross member webs therebetween. The main runners are supported by overhead hanger wires. Ceiling tiles are received on horizontal flanges of the connected main runners and cross members. The connectors may be attached without tools for convenient assembly of the system.

Abstract: A belt conveyor for transferring a web threading tail in a web manufacturing machine has a frame construction (15) and a belt loop (20), which is arranged around rolls (16, 17). The belt conveyor has adjustment elements (21) for changing the relative position of the rolls (16, 17). The adjustment elements (21) include transfer elements (22), which are arranged in connection with both edges of the frame construction (15). The adjustment elements (21) act in mutual co-operation for moving the roll (17) by operating the transfer elements (22) from one side of the frame construction (15). A belt loop for the belt conveyor for a web threading tail in a web manufacturing machine is readily changed from one side of the conveyor.

Abstract: A web is wound in a paper or board machine into machine reels, which are run on a slitter-winder to form customer rolls, whose desired diameter and width are determined according to customer need. A continuous-trimming running mode is used in which a desired amount of web is run into a machine reel and, when needed, splicing is performed on the slitter-winder to produce customer rolls with a desired diameter size. The machine reel diameter is determined based on restrictions set on the location of a splice in the customer roll and the amount of broke produced from the machine reel is optimized. Information about the customer rolls to be slit is obtained from a production control system for calculating/optimizing a machine reel diameter instruction for optimizing the diameter of the next machine reel, and the calculated/optimized machine reel diameter instruction is set in the control system of a reel-up.

Abstract: A mailbox is mounted to two perpendicular faces of a post by a mounting assembly main bracket with two perpendicular flanges. The main bracket has a horizontal top wall from which two diverging sidewalls extend downwardly. The top wall has two sets of perpendicular slots, which receive two parallel right angle top brackets to receive the mailbox in a position either partially overlying the top of the post, projecting from the post, or offset from the post in a transverse orientation. Another embodiment has a main bracket with an integral top bracket, and only one adjustable top bracket. For sale, the top brackets mount to the main bracket by a label sheet wrapping the top wall and holding a fastener container.

Abstract: The condition of a shoe roll is monitored by a device which continuously analyzes the lubricant used in a lubrication system (14) integrated with the shoe roll. The analysis determines the amount of contaminant particles which have entered the lubricant. Particles (19) originating from the belt (13) of a belt roll belonging to the shoe roll (10) are determined in the lubricant. The condition of the belt (13) of a belt roll belonging to the shoe roll (10), and especially the condition of the inner side of the belt (13), can be determined on the basis of the amount of the particles (19).

Abstract: A forming section of a paper or board machine 10 in the forming section of a paper or board machine has a cover 36 having an outlet groove 20 between a suction zone 18 of circular holes and an outlet edge 40. A wire comes to the cover area from an inlet edge 38 and leaves from an outlet edge 40. The outlet groove 20 is essentially in the cross-machine direction of the cover 36. The suction zone accomplishes non-pulsating dewatering, and the outlet groove accomplishes pulsating dewatering. The non-pulsating suction zone first accomplishes good retention, and after this formation is improved on the outlet groove. When pulsating dewatering takes place in the same direction as non-pulsating dewatering and immediately after non-pulsating dewatering, the web formed has a particularly good formation potential. Potential marking caused by non-pulsating dewatering can also be removed efficiently by means of pulsating dewatering taking place on the same side.

Abstract: A grooved forming roll in a paper machine has a rotably supported shell (20) with circular openings (21) arranged to be open at least on the outer surface of the shell (20). Each opening (21) has a circular groove which is formed on the outer surface and which is arranged concentrically relative to the opening (21). A portion of the formed circular openings (22) extends to each opening (21) from each adjacent opening (21). The outer radius (r) of the circular groove (22) is arranged such that the number of necks (24), delimited by the adjacent openings (21) and their circular grooves (22) on the shell outer surface within the area of one circular groove (22), is greater than the number of the adjacent openings (21) of the corresponding opening (21).

Abstract: A headbox apparatus of a paper machine or equivalent has a body (11). Dilution water (arrow L2) is conducted through at least two rows of ducts (12a1, 12a2 . . . ) into each body mixing chambers (13a1, 13a2 . . . ). Each mixing chamber (13a1, 13a2 . . . ) is limited by vertical walls (T1), a bottom wall (T2) and a covering wall (T3), and a partition wall (16a1, 16a2 . . . ). The ducts (14a1.1, 14a1.2 . . . ) on the inlet side of the mixing chamber extend into the mixing chamber (13a1, 13a2 . . . ) at a distance (h1) from the ducts (15a1.1, 15a1.2 . . . , 15a2.2 . . . ) on the outlet side of the mixing chamber (13a1, 13a2 . . . ), whereby an annular gap (D1) is left between the aligned duct (14a1.1, 14a1.2 . . . 14a2.1, 14a2.2 . . . ) on the inlet side and the duct (15a1.1, 15a1.2 . . . , 15a2.1, 15a2.2 . . . ) on the outlet side. Each mixing chamber (13a1, 13a2 . . . ) is filled by dilution water which is conducted through the annular gap (D1) to join the stock (m1).

Abstract: An orbital stage system has an orbital stage and one or more launch stages. The orbital stage incorporates an orbital maneuvering system (OMS) and an abort propulsion system which both utilize the same propellants, propellant tankage, and propellant pressurization system, but which employ radically different engines. The OMS engines are comprised of at least two engines which have a combined thrust in the neighborhood of 1/10 the weight of the orbital stage, an area ratio of 50 or more and an operating life of many hundred seconds, preferably many thousands of seconds or more. The abort engine may be a single engine and typically has a thrust of three, four, or more times the weight of the vehicle and an area ratio in the neighborhood of two and an operating life of at most a few tens of seconds.