Abstract: A calender having a heated first roll which is opposed to and forms a nip with a soft surface counter roll system comprised of a second roll which has an outer shell. An endless polyurethane belt or blanket having an inside diameter 5 to 50 mm larger than the outside diameter of the second roll shell, is mounted about the second roll. The outer circumferential edges of the polyurethane belt are held by clamping rings to bearings which are circumferentially mounted about the second roll on the roller gables. A small quantity of oil may be placed between the surface of the second roll shell and the polyurethane belt.
Abstract: A nozzle arrangement in an airborne web-drying apparatus for drying a coated paper web (10) or the like. The nozzle arrangement comprises at least one overpressure nozzle (14), which is arranged to blow drying air both in the web's travel direction and against the web's travel direction. The nozzle arrangement comprises further a direct impingement nozzle (16) combined with the exit side and/or the entrance side (26) of the overpressure nozzle, in which direct impingement nozzle a plurality of nozzle slots or nozzle orifices (17) are formed in order to blow drying air mainly perpendicularly toward the web. The perpendicular distance (a1) from the nozzle surface (30) of the direct impingement nozzle (16) to the web is larger than the perpendicular distance (a2) from the supporting surface (32) of the overpressure nozzle (14) to the web.
Abstract: A colloidal dispersion of nanoparticles of silver is used to preserve animal reproductive samples such as boar semen without the use of antibiotics. The colloidal silver solution may have a metal concentration of at least about 1×10−9 moles/liter and may be mixed with conventional culture media such as semen extender.
Abstract: A leg column extends between a user's legs, and a connected foot column extends front to back between the user's feet. Front and rear foot rods beneath the foot column bear against the soles of a user's feet. Cushioned front, rear and upper weight rods are connected to the leg and foot columns to bear against the foot above the user's toes, the user's feet above the heels and the lower legs at the shins, respectively. Barbell weights are removably connected to the weight rods. The relationships of the foot rods and weight rods are adjustable to suit a particular user. The leg barbell is completely free from connection to any fixed structure and, although secured to the user's legs and feet for a variety of exercises, is readily disengaged. The weight rods and foot rods may be connected with telescoping mounting members or perforated barstock to facilitate convenient adjustment.
Abstract: A roll has a continuous tubular roll shell (11) of a composite material and axle journals (12) rotating together with the roll shell and joined to each end of the roll shell. The axle journals are supported on a supporting element (13) surrounding the axle journal (12) by at least two bearing elements (14, 15) located at a distance from each other in the axial direction (X—X) of the roll, which supporting element (13) for its part is supported on the machine frame structures (R). The first bearing element (14, 15) is supported on the supporting element (13) through a bending mechanism (20, 21), which is used for applying to the first bearing element (14, 15) a force affecting in a radial direction in order to deflect the first bearing element (14, 15) in relation to the central axis (X—X) of the unbent roll, whereby the axle journal (12) will bend in relation to a pivot point which is formed at the second bearing element (14, 15) and a bending moment is applied to the roll shell (11).
March 9, 2001
Date of Patent:
July 15, 2003
Metso Paper, Inc.
Juha Isometsä, Tuomo Kurkela, Jorma Snellman
Abstract: A two-dimensional figure display device supports an animal or figure silhouette with loose appendages, such as a dog's ears and tongue, on the exterior of a vehicle rear window. The image of the figure to be simulated is formed on a multi-layered element which is attached to a stiffening support. The support has frontwardly and upwardly extending clips which engage between the window and the window frame of the moving vehicle. Loose flaps of material on the multi-layered element are acted upon by the wind as the vehicle travels, simulating the movement of the depicted figure.
Abstract: A supercalender has a top roll, a bottom roll, and a plurality of intermediate rolls. The intermediate rolls are mounted to support frames by pivot arms. The pivot radius defined by the arms is at least about 2½ times the diameter of the largest intermediate roll. Hydraulic load support cylinders are arranged between the intermediate roll bearings and anchor points which are spaced away from the intermediate rolls, to allow greater movement without mechanical interference between hydraulic load support cylinders. The greater length of the pivot arms combined with a greater stroke of the load support cylinders allows the supercalender to accommodate filled rolls which change diameter substantially over their life, as the surface of the rolls is repeatedly turned down to refurbish the roll surface. The calender may be based on an existing calender of the closed A-frame type.
Abstract: The blowing device comprises a blow box (30) which is arranged at the opening nip (22) between the wire and the cylinder and which is provided with at least two nozzles (36; 44, 46) or the like arranged close to the wire or the like. The first nozzle (36) is arranged at the opening nip (22) between the wire and the cylinder, for blowing air away from the gap (34) between the wire and the blowing device. The second nozzle (44, 46) is arranged at a distance from said opening nip, in the wire travel direction. The air jets discharged from the nozzles maintain a negative pressure in the space between the blowing device and the wire.
Abstract: A plastic upper jaw is pivotably mounted by a steel pin to a plastic base. A spring urges the jaw to close upon the base. A trigger is pivotably mounted to the base. A catch restrains the upper jaw in a set position until the trigger is actuated. The base has two upwardly extending side walls. Each side wall has a cable opening adjacent the floor of the base. A cable tie is looped around a pipe or support member and extends through the opposed openings in the opposite side walls. The ends of the tie are connected to secure the rodent trap to the support member. Because the upper jaw provides a wide gripping area, allowing the trap to be safely set, the trap is readily moved into the set position while it is secured to the support member, even if in an overhead position.
Abstract: A web roll is wound (11) by passing the web onto a core (12) via a pressure nip (N) formed between a winding drum (10) and the roll (11), whereby the core (12) is supported by chucks (14) mounted on roll support arms (13). The pressing-nip force in the nip (N) formed between the roll (11) and the winding drum (10) is controlled using a position-feedback technique in which the movements of the roll support arms (13) are synchronized. Moreover, the support arms are moved is response to a control unit which uses a physical model of the winding process which predicts roll diameter at any time. When force sensors which detect an increase in pressure the arms can be advanced to promote even winding of the roll.
Abstract: A headbox (10) has a stock inlet header, a tube bank, a tubulence generator and a slice channel. Measurement targets (PA, PB, PC, P, PE) are provided with means for making measurements of the fiber mobility of the fiber suspension, then controlling the flow state of the suspension. Sensors on the width of the headbox (10) or traversing sensors are positioned on different width points of the headbox (10) and arranged to measure the fiber mobility profile, with means for changing the flow state on the basis of the measurements. Apparatus for diluting the thick stock into headbox consistency and units for cleaning the stock to be fed into the headbox may be provided. Sensors may be disposed in the short circulation pipes or cleaning units arranged to measure the fiber mobility of the fiber suspension with means for changing the flow state on the basis of the measurement data.
June 10, 2002
Date of Patent:
April 22, 2003
Metso Paper, Inc.
Juhana Lumiala, Hannu Lepomäki, Petri Jetsu, Petri Nyberg, Hannu Karema, Markku Kellomäki, Juha Salmela
Abstract: A container for biological fluids useful in artificial insemination is disclosed. The inventive container has a nozzle for delivery of the biological liquid, wherein the nozzle has means for bending such that the container may be used in a vertical position while attached to a horizontal catheter. The nozzle also has means to facilitate opening the tube without tools.
Abstract: A reactive silencer intended for industrial supply air or exhaust air channels has a sound attenuator chamber (10), to which is fitted a partition wall (12) dividing the sound attenuator chamber into a first and second chamber part (14, 16). The partition wall (12) is fitted with two or more channels or pipes (26, 26′, 26″) which connect the first chamber part (14) to the second chamber part (16). In this way a silencer of small size and simple structure is obtained for attenuating noise, especially that produced by large or several small air channels.
April 17, 2001
Date of Patent:
March 11, 2003
Metso Paper, Inc.
Henrik Pettersson, Keijo Nissilä, Juhani Jokinen, Tauno Heikkilä
Abstract: An internal catheter has a flexible plastic inner tube with an integrally formed protruding head with an axial channel. The internal catheter extends through an axial channel in an exterior catheter. With the internal catheter head withdrawn within the foam or spiral tip of the exterior catheter, the assembly is advanced into a sow cervix, and the internal catheter is then advanced through the tip of the catheter and remaining portion of the cervix and into the uterine body and possibly into a uterine horn. Semen or embryos are then introduced through the axial cavity. The tip of the exterior catheter may have a protective flap which is not penetrated until the inner tube is advanced therethrough. The internal catheter axial channel may have a constricted portion within the head, to engage a semen or embryo containing straw.
Abstract: A positioning frame supports a rotating buff roll within a vacuum plenum at a desired location adjacent a moving web of material. The apparatus has a drive arm with a jackshaft and a support arm each pivoted off bases which may be clamped to a single cross machine direction shaft. The motor drive may also be positioned at a variety of orientations. Three parallel axes of adjustment are defined by the positioning frame granting the installer of the apparatus great latitude in positioning the buff assembly near the web to be cleaned. Two web cleaning apparatuses may be installed on opposite sides of an open span of web, or a first apparatus may be engaged against the web where it turns around a roll, and a second apparatus may be engaged against the web where it turns around a downstream roll.
Abstract: A bracket of graphite epoxy has a cylindrical portion which hingedly fits within a dovetail groove extending in the machine direction across the injection face of a papermaking headbox. The bracket has downstream portions defining a vane-receiving slot which receives a plastic sheet vane which is held by screws. The bracket is laid up of carbon fibers oriented so that the coefficient of thermal expansion matches the steel from which the headbox is manufactured. A two-part metal mold is used to define the underside and the bead portion of the bracket. A rubber gasket of Shore 70 material forms the center of the bead portion about which prepregs of graphite cloth are wrapped. A removable polytetrafluoroethylene insert defines the slot during molding. The assembly is placed under a vacuum bag and heated, causing the rubber gasket to expand and press the overlying graphite prepregs against the sides of the mold.
Abstract: A beam with a continuous body (11) of a composite material has end pieces (13) fitted at each end of the body (11) and axle journals (12) fitted on the end pieces (13). Each axle journal (12) is supported on the frame constructions of the machine by means of a support construction (15, 20, 21, 30, 31, 100), in which there are bearing members (21, 31) fitted at a distance from one another in the longitudinal direction of the axle journal (12). The bearing members (21, 31) are fitted in bearing housings (20, 30), and a bending mechanism (40, 50, 60) is fitted in the support construction (15, 20, 30, 100), by which a torque is applied that bends the body (11) of the beam. The beam may support doctor blades, various measurement devices, induction devices, and coating devices.
Abstract: The invention concerns the short circulation of a paper or board machine and in particular a simplified process arrangement for the short circulation, which arrangement comprises a metering system (20) for the stock (M) or stocks, pumps (110, 130, 170), a headbox (150), and a wire part (160) as well as a pipe system interconnecting the devices, with means of regulation, and in which arrangement a high-consistency stock (3) is fed into the headbox (150), and the white water (4) recovered from the wire part (160) is fed by means of a diluting pump (170) into the headbox (150) so that diluting of the stock suspension is carried out in the headbox.
Abstract: A supply air system for supplying air e.g. into a machine room. The supply air system comprises a supply air unit (12), to which means are connected for supplying the supply air from the outside air to the internal space, and an air treatment unit (14) in which means (58, 64) are arranged for treating the air supplied into the internal space. The units are interconnected by at least one duct (16, 16′), equipped with a blower. The supply air system further comprises an air distribution plate or the like for distributing the treated air into the machine room. The above-mentioned units are mounted on top of each other, so that the supply air unit (12) is arranged above the air treatment unit, so that an air chamber (20) for the treated air is formed between said units. At least a part of the air chamber borders to said air distribution plate (18, 18′).