With Material Handling Or Guiding Patents (Class 100/173)
  • Patent number: 9498779
    Abstract: A method for regulating the roll gap pressure of a roller press and a corresponding roller press. The roll gap pressure is regulated dependent on at least one oscillating movement that is measured on the roller press. This has the advantage that the roller press can always be operated at the maximum roller press efficiency without the roller press reaching the overload range.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 22, 2016
    Assignee: KHD Humboldt Wedag GmbH
    Inventors: Dieter Brendler, Meinhard Frangenberg, Hans-Peter Makulik, Stefan Seemann
  • Publication number: 20150102148
    Abstract: A device for processing free-flowing input material, having a machine frame formed by longitudinal and transverse walls, in which a rolling mill having at least one pair of oppositely rotating rollers is disposed axially parallel next to one another so as to maintain a radial roller gap and are rotatably mounted in the transverse walls. The input material is processed upon passage through the roller gap. The region located upstream of the roller gap is used to feed the input material, and the downstream region is used to discharge the material. In order to minimize the disruptions caused by wear and thermal load, it is provided that the upstream region for feeding comprises a feed chute having longitudinal chute walls and end chute walls, the end chute walls each disposed with axial separation between the transverse walls of the machine frame in order to form an open space.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 16, 2015
    Inventor: Hartmut PALLMANN
  • Patent number: 8950320
    Abstract: A portable roller press that includes a base frame having a pair of opposing stanchions, a drive roller assembly having upper and lower rollers extending between and rotatably mounted to the stanchions, a pair of opposing wings that are hingedly coupled to the base frame and selectively movable between open and closed positions, and an idler roller rotatably mounted to each of the wings. The wings have recessed portions that together substantially enclose the drive roller assembly when the wings are in closed positions. Additionally, when the wings are in their closed positions, the idler rollers are contained in a void space between the upper and lower rollers. The wings can be substantially hollow and arc configured for holding and transporting items therein.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: February 10, 2015
    Assignee: Tek Industries, Inc.
    Inventors: Stephen Nabity, Bryan Hunter, Peter Kaltenbach, Henric Jentz
  • Publication number: 20140041538
    Abstract: A compacting device is disclosed that is an at-home compactor for a variety of recyclable containers. The compacting device comprises a pair of opposing side units, wherein each of the opposing side units comprises a plurality of rollers secured together, creating a compacting zone. Typically, the plurality of rollers are secured together via a conveyor belt, and the surface of the conveyor belt would comprise a textured surface which creates friction to direct a recyclable container downward through the compacting zone. Furthermore, the compacting device comprises a storage unit for collecting the compacted recyclable containers, and a push component that assists with the downward movement of the recyclable containers through the compacting zone. The compacting device also comprises a selector component that funnels different types of recyclable containers into separate storage units, and a lid which acts to seal the contents of the compacting device and prevent leaks.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Inventor: Vijay Parmar
  • Patent number: 7524400
    Abstract: A method for controlling a calendering system having a first roll having a first roll speed controller and a second roll having a second roll speed controller is disclosed. An exemplary method comprises the steps of: (a) setting the first roll at a desired process speed with the first roll speed controller; (b) determining a target torque of the first roll; (c) contactingly engaging the first and second rolls; (d) determining an actual torque of the first roll; (e) comparing the target torque and the actual torque; and, (f) adjusting a speed of the second roll with the second roll speed controller to maintain the target torque of the first roll according to the comparison of the target torque and the actual torque.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: April 28, 2009
    Assignee: The Procter & Gamble Company
    Inventor: Michael Joseph Franz
  • Patent number: 7441497
    Abstract: A wringing device is used to expel fluids from a flexible container contained within an intermediate bulk container (IBC). The wringing device includes a support frame and a carriage movably coupled to the support frame for supporting components thereof. The wringing device includes a nip shaft coupled to the carriage, and a movable nip shaft movably coupled to the carriage proximate to the nip shaft. The movable nip shaft may be biased toward the nip shaft with a biasing device. The wringing device may include one or more drive devices for driving a take-up shaft and the carriage. The wringing device may also include a transport vehicle for transporting the wringing device between different intermediate bulk containers.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: October 28, 2008
    Assignee: CHEP Technology Pty Limited
    Inventors: Vishnu K. Naidu, Joseph R. Russo, Jr.
  • Patent number: 7322285
    Abstract: An apparatus for crushing objects includes an inlet for serially feeding objects to the apparatus and a driver roller that is rotatably driven about a first axis by a power input mechanism, wherein the driver roller has a first notch. The apparatus further includes an idler roller rotatably coupled to the driver roller so as to be rotatably driven about a second axis that is substantially parallel to the first axis. The idler roller has a second notch wherein the first and second notches coordinate to at least partially receive the object therein throughout a portion of respective revolutions of the driver roller and the idler roller. The apparatus may further include a crushed object outlet.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: January 29, 2008
    Assignee: Wittig Electric Can Crusher, LLC
    Inventor: David Wittig
  • Patent number: 7272966
    Abstract: An entry guide for a roll forming machine having fixed stop members for the different widths of sheet metal material which can be accommodated by the roll forming machine. The fixed stop members are offset in the vertical direction. Accordingly, when the roll forming machine is adapted to accommodate a different width of sheet metal material, there is no need to adjust the entry guide.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: September 25, 2007
    Assignee: Englert, Inc.
    Inventors: Michael Gorski, Terrance J. Johnson
  • Patent number: 7179349
    Abstract: A web (W) is passed from a preceding treatment stage to a finishing device in which the web (W) is finished in the finishing device and from which finishing device the web (W) is passed further to a subsequent treatment stage. The web (W) is brought to a roll (11; 14) of the finishing device as supported substantially before a nip area (N1; N2). The web (W) is passed from the circumference of a roIl (12; 15) of the finishing device as substantially supported afler the nip area (N1; N2). A device for passing a web in connection with a finishing device of a paper machine causes a web (W) to be brought by the device to the circumference of a roll (11; 14) of the finishing device substantially before a nip area (N1; N2) and/or the web (W) can be passed from the circumference of a roll (12; 15) of the finishing device substantially after the nip area (N1; N2).
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: February 20, 2007
    Assignee: Metso Paper, Inc.
    Inventor: Pekka Koivukunnas
  • Patent number: 7134387
    Abstract: A refrigerant gas is collected and a compressor is removed from a discarded refrigerator, a heat-insulating housing including a heat insulator is cut/processed and separated into a plurality of pieces, and the pieces are compressed/processed by compression rollers opposing each other so as to collect a gas contained in the heat insulator. In accordance with this method, substantially no gas contained in the heat insulator is diffused at the time of cutting the heat-insulating housing, and the gas can be collected at a high concentration because it is collected by being allowed to leak out at the time of compressing. Furthermore, by using the compression rollers, closed-cells in the heat insulator can be crushed easily, thereby collecting the gas completely and reliably. Thus, it is possible to collect a foaming gas contained in the heat insulator efficiently and disassemble a refrigerator at low cost without increasing the size of equipment and an installation space.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: November 14, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mikio Yotsumoto, Yutaka Matsuda, Takayuki Gyoubu, Katsuya Sawada
  • Patent number: 6905575
    Abstract: In a paper/board or finishing/converting machine, a calender (1) comprises a number of rolls (2, 3) formed into a roll stack, and a number of lift-out rolls (4), which are arranged in such a way that the web (W) being treated travels from one calender (1) nip (N) to another via a lift-out roll (4). Between the calender (1) roll (2, 3) and the lift-out roll (4), the web (W) being treated is supported by means of at least one closing member (5, 5?, 6) not extending through the nip (N), which closing member is formed by a belt, wire or metal wire (7), which is arranged to travel via two or more guide rolls (4, 8).
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: June 14, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Pekka Linnonmaa, Antti Heikkinen
  • Patent number: 6881301
    Abstract: A method and an arrangement for controlling evaporation and moisture in a multinip calender (10) when a continuous fibrous web (W) is calendered in calendering nips (1,_2,—3,—4,—5) placed one after the other before the fibrous web is wound on a reel-up/winder (9). With a view to making the net evaporation from and the final moisture content of the web (W) constant when the running situations in the calender (10) change, the web is passed in the calender from the outlet of at least one nip into an air-float chamber (20) of the turning airborne type.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: April 19, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Antti Heikkinen, Pekka Linnonmaa, Reijo Pietikäinen
  • Patent number: 6780287
    Abstract: A relatively low-cost calendering belt having excellent heat resistance and durability comprises a central portion 30, and left and right side portions 20 located at the sides of the central portion. The right and left portions 20 comprise high molecular weight elastic material having greater heat resistance than that of the central portion 30. The central portion 30 is composed of high-molecular elastic material, the durability of which is higher than that of the right and left portions 20. The heat of the calender roll CR is intercepted by a paper W, and consequently is not transmitted to the central portion 30 of the calender belt. The right and left portions 20 of the calender belt, which are not protected by paper W do not deteriorate readily as a result of the heat of the calender roll CR because of their heat resisting property.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 24, 2004
    Assignee: Ichikawa Co., Ltd.
    Inventors: Norio Sakuma, Yasuhiro Tsutsumi, Kazumasa Watanabe
  • Patent number: 6718869
    Abstract: In the method for threading a tail (7) of a paper or board web through a paper or board machine or a section thereof, or through an aftertreatment machine for paper or board or a section thereof, the tail (7) is prevented from wandering onto the same line with a tail carrier means (8, 9), such as threading ropes, upstream of the draw point of the tail. The tail (7) is guided towards the centre line of the machine by subjecting the tail to an effect of force which tends to move the tail towards the centre line of the machine.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: April 13, 2004
    Assignee: Metso Paper, Inc.
    Inventors: Juha Laitio, Ismo Kallio, Veli-Pekka Koljonen
  • Patent number: 6612228
    Abstract: A calender having a supporting frame and a set of rolls attached to vertical portions of the supporting frame so as to form a stack of rolls in which adjacent rolls placed one above another form calendering nips therebetween. The stack including a top roll, a bottom roll and a plurality of intermediate rolls between the top roll and the bottom roll. The intermediate rolls are attached revolvingly to arms pivoted on auxiliary frames attached to vertical portions of the supporting frame. A method of rebuilding a calender in which auxiliary frames are attached to the vertical portions of the existing calender frame and thereafter pivotal arms for the intermediate rolls are mounted on the auxiliary frames.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: September 2, 2003
    Assignee: Metso Paper, Inc.
    Inventor: Richard Michael Strebel
  • Patent number: 6598521
    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.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: July 29, 2003
    Assignee: Metso Paper, Inc.
    Inventor: Magnus Wikstöm
  • Patent number: 6585858
    Abstract: An apparatus for calendering a sheet material web being carried on or between one or more carrier fabrics. In a preferred embodiment, the apparatus includes a calender section having first and second calender rolls forming a nip therebetween. At least one carrier fabric is disposed between the first and second calender rolls. The first and second calender rolls apply a load to the carrier fabric and sheet material web as they pass through the nip between the calender rolls so as to reduce the caliper, or thickness, of the sheet material web. A method for calendering the sheet material web includes carrying the sheet material web on one or more carrier fabrics through the calender nip formed by the first and second calender rolls and applying a load to the carrier fabric, and sheet material carried thereby, so as to reduce the thickness of the sheet material web.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: July 1, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kurt T. Otto, James M. Perkins
  • Publication number: 20020185017
    Abstract: A device for evacuating liquid from a collapsible hose. An elongated frame includes a pair of spaced apart wheels rotatably secured about an axis situated at an end of the frame. A first cylindrical member is mounted about the axis between the pair of spaced apart wheels. A second cylindrical member is pivotally and rotatably secured to the frame and arranged in opposing and rotatable contact with the first cylindrical member. The second cylindrical member is actuable in directions towards and away from the first member and such that, upon the hose being inserted between the first and second cylindrical members in a first displaced position, the cylindrical members are subsequently moved into contact with one another and the device translating upon a ground support surface so that the hose is drained and compressed into a collapsed condition.
    Type: Application
    Filed: May 22, 2002
    Publication date: December 12, 2002
    Inventor: David Peek
  • Patent number: 6402889
    Abstract: A web guidance device for a calender and a method of threading a web through a calender. The web guidance device is for a roll stack having several rolls which form a plurality of nips, and includes a movable web guidance device which is fixable in at least one insertion position and arranged on at least one side of the roll stack, wherein the web guidance device guides a beginning of the web through the roll stack. The method is for threading a material web through a calender which has a roll stack having at least a first nip and a second nip, and includes feeding a web beginning through a first nip from one side of the roll stack, engaging the web beginning on the other side of the roll stack with a web guidance device, and guiding the web beginning to a second nip with the web guidance device.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: June 11, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Michael Gwosdz-Kaupmann, Thomas Hermsen, Reinhard Wenzel, Franz Kayser
  • Publication number: 20010047727
    Abstract: In a rotary press, a first press roller adapted to retreat during printing and advance during plate changing to contact a web is provided on a travel route of the web between a printing unit and a dryer. A second press roller having the same function as the first press roller is provided on the travel route of the web between air infeed unit and the printing unit. A web presser for pinching the web is provided on the travel route of the web between the infeed unit and the second press roller. With the web being pinched by the web presser, the first press roller and the second press roller can be moved by the web in a retreating direction. After plate changing is completed, the press rollers can smoothly ascend regardless of their pressure, and can promptly and smoothly return to the state before plate changing.
    Type: Application
    Filed: May 9, 2001
    Publication date: December 6, 2001
    Inventor: Shinichi Fujishiro
  • Patent number: 6257132
    Abstract: A meat preparing machine having two vertically stacked columns of two or more non-sharpened edge stainless steel rollers, or of various other materials such as plastic or aluminum, adjacent to one another in an aluminum or stainless steel frame. The stacked rollers are configured to tenderize, flatten, scrape or cut the meat into strips. Four threaded shafts with numbers connect each corner of the stacked rollers to an adjacent corner of the other stacked rollers to allow for the adjustment of the spacing between the stacked rollers. A first conveyor belt with scraper at the end to discharge meat into the first and second columns is mounted adjacent the top of the rollers for feeding the meat into the rollers. A second conveyor belt with scrapers to discharge meat is mounted adjacent the bottom of the rollers for retrieving the prepared meat from the machine.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 10, 2001
    Inventor: Phil Bifulco
  • Patent number: 6245198
    Abstract: The invention concerns an arrangement of threading of a paper web (W) in a supercalender, which comprises an upper roll (12), a lower roll (13), and a stack of rolls consisting of intermediate rolls (14 . . . 23) and fitted between said upper and lower roll. The rolls (12 . . . 23) in the calender arm in nip contact (N1 . . . N11) with one another. At the sides of the stack of rolls, alternatingly at the left side and at the right side, a take-out leading roll (101 . . . 110) has been fitted at each intermediate roll (14 . . . 23). The arrangement of threading comprises at least one loop of a transfer belt (Z), which is penetrable by air and which runs outside the edge of the paper web (W) through at least two nips (N1 . . . N11) in the calender. The transfer belt (Z) passes the lead-in strip (W1) of the paper web through at least one nip (N1 . . . N11) in the calender. In addition to this, the arrangement of threading comprises at least one suction box (201 . . . 205; 210 . . .
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 12, 2001
    Assignee: Valmet Corporation
    Inventors: Jorma Kinnunen, Juha Laitio
  • Patent number: 6199477
    Abstract: The invention relates to a calender for treatment of a product web, having at least one roll stack comprising rolls arranged in a calender frame, the ends of which rolls are guided in roll mountings, which can be fastened to the calender frame by means of brackets, and having guiding means associated with the rolls for guiding a product web through nips formed between the individual rolls. For a rapid change-over with respect to the nature and intensity of the treatment of a product web in a calender, the brackets are in the form of modules, which support the rolls and are capable of being fastened individually to the calender frame and which have identical connecting devices for grouping, as desired, on the calender frame.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 13, 2001
    Assignee: Edward Kuster Maschinenfabrik GmbH Co. KG
    Inventors: Bernhard Brendel, Peter Svenka
  • Patent number: 6158334
    Abstract: The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by means of said flexible belt to form an extended and heated nip through which a fiber web passes to be calendered and a separating mechanism for having at least one of the rolls movable into and away from the nip characterised in that said flexible belt is a flexible tubular jacket which forms a part of an enclosed shoe roll such that the ends of said jacket have end walls mounted thereto, which end walls are rotatably mounted in relation to said support beam, and in that at least one of said end walls is driven by means of a drive arrangement which drive arrangement may be activated to drive the end walls and thereby also the jacket independently of its position in relation to the fiber web or the heated roll.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: December 12, 2000
    Assignee: Valmet Corporation
    Inventors: Nils-Erik Safman, Thomas Berglind
  • Patent number: 6085646
    Abstract: A four nip calender apparatus mounted on a single frame. The apparatus includes a first vertical calender mounted on the frame wherein the web passes through a first nip formed by a first calender roll and a second calender roll. The apparatus also includes a horizontal calender configuration providing two nips. The horizontal, three-roll arrangement is mounted on the frame and has a center roll and a pair of rolls positioned on opposite sides of the center roll which, with the center roll, provide the second and third nips. The apparatus also includes a fourth nip provided by a second vertical calender mounted on the frame.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: July 11, 2000
    Assignee: Beloit Technologies, Inc.
    Inventors: Richard J. Lauterbach, Richard J. Santkuyl
  • Patent number: 5855168
    Abstract: A sugar cane milling system for two roll or three roll crushing mill modules in tandem in which one or more of these mill modules is provided in addition and adjacent to it with at least one toothed feeder roller and with a juice drainer in the form of a scraper-cum-short deflector for feeding a compact mat of prepared cane/bagasse directly to the nip of the crushing rolls of the modules. The prepared cane mat is fed approximately at the same speed as the surface speed of the crushing mill rolls without sharp changes in direction. Superficial juice is separated out as the cane mat is fed. A pressurized juice extracting conveyor is provided for removing the extra unabsorbed juice as well as squeezing out the absorbed juice out of cush-cush.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: January 5, 1999
    Inventor: Bhausaheb Bapurao Nikam
  • Patent number: 5850786
    Abstract: A meat flattening machine having two vertically stacked rows of non-sharpened edge stainless steel rollers adjacent to one another in an aluminum frame. Each row has at least two and preferably six rollers wherein the top row is spaced further apart from the bottom rows The plural stacked rows allow for the meat to be pulled and stretched between the rollers for flattening the meat. Four screws connect each corner of the stacked rollers to an adjacent corner of the other stacked rollers to allow for the spacing between the stacked rows to be adjustable. Each roller has parallel rows of rectangular ridges having non-sharpened edges. The bottom roller of each stack can have grooves approximately 1/16 inch deep, while the above rollers can have grooves approximately 1/8 inch deep between the rectangular ridges. The frame includes a removable electric motor, stainless steel sprockets and stainless steel chains for rotating the rollers.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: December 22, 1998
    Inventor: Phil Bifulco
  • Patent number: 5816143
    Abstract: A process and device for satining paper may include guiding a sheet through a roll gap defined by a heated hard roll and a soft roll having with a covering. A paper sheet width of the paper may be less than a width of a cylindrical part of each of the covering and the hard roll. The two rolls may be axially adjusted in relation to each other and in accordance with the paper sheet width. Further, the two rolls are positioned such that a first sheet edge is located adjacent a first end of the cylindrical part of the covering and a second sheet edge is located adjacent a second end of the cylindrical part of the hard roll. That is, the cylindrical parts of the covering and hard roll are positioned to be directly over each other, i.e., beyond the sheet edge, at most by a predetermined permissible edge width.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: October 6, 1998
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Ulrich Wagner, Dirk Cramer
  • Patent number: 5816146
    Abstract: A calender for satining paper through roll gap formed between a heated hard roll and a soft roller having an elastic covering. Overheating of an edge region of the covering, i.e., the portion not covered by the paper to be satined, may be prevented by utilizing continuous insulation belts. The insulation belt may reduce the transmission of heat from the surface of the hard roll to the elastic covering, at least in the roller gap.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: October 6, 1998
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Ulrich Wagner, Dirk Cramer
  • Patent number: 5791242
    Abstract: A calender for treating both sides of a paper web includes hard rollers and soft rollers. Working nips are formed between the juncture of each hard roller and soft roller. The roller stack can be loaded from one end, and preferably includes six to eight rollers. A changeover nip is formed by the juncture of two soft rollers or at the transition between two stacks. When using two stacks, each stack preferably has three to five rollers. At least one working nip has a dwell time of at least 0.1 ms. A heatable roller adjacent to the working nip is heated to a surface temperature of at least 100.degree. C. The roller stack is loaded such that an average compressive stress in the working nip is greater than or equal to 42 N/mm.sup.2.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: August 11, 1998
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Franz Kayser, Rolf van Haag, Ulrich Rothfuss, Reinhard Wenzel
  • Patent number: 5784955
    Abstract: A calender has at least four rollers that are located one above the other. The rollers rotate about roller bearings. The calender is located within a paper-making machine. Each of the rollers is rotatably driven by an independent driving mechanism. At least two of the rollers are heatable. At least 40% of the rollers are soft rollers. The outer coverings of the soft rollers are made of a synthetic material that is not sensitive to marking so that a doctor blade can be applied to the soft rollers. The calender includes a device that inserts a paper guide strip into the calender.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: July 28, 1998
    Assignee: Voith Sulzer Finishing GmbH
    Inventor: Hans-Rolf Conrad
  • Patent number: 5771794
    Abstract: A paper disposal and compacting apparatus capable of causing sheets of paper and other substrates to be disposed, to fold in a compact accordion like manner. The apparatus includes a first roller and a second roller adjacent and parallel to one another to force the sheets to pass between the rollers and a first roller driving device for rotating the first roller. The apparatus further includes a paper waste container for receiving the sheets after passing between the rollers. The container dimensions sized to match the sheets to be disposed to cause the folding in the compact accordion like manner of the sheets.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: June 30, 1998
    Assignee: Scitex Corporation Ltd.
    Inventors: Ilan Benizri, Shimshon Ahimeir
  • Patent number: 5582099
    Abstract: A truss bend correction system having a pair of in-feed correction rollers, a pair of finish rollers, and an out-feed correction roller define a path for counterbending the joints of a truss to reform the nail plates and thereby flatten the overall truss. The in-feed correction rollers and the out-feed correction roller are oriented downwardly with respect to the finish rollers so that an undesired upward bow of a truss joint is counterbent downwardly, thereby straightening the joints of the truss.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 10, 1996
    Assignee: Alpine Engineered Products, Inc.
    Inventor: Michael C. Rosser
  • Patent number: 5558017
    Abstract: In a roll stand, more particularly a cluster roll stand, having guard plates (15, 21) which are disposed opposite one another in pairs above and below the strip (B) processed in the roll stand in the run-in zone (E) and run-out zone (A) of the roll stand and which extend into the roll stand substantially as far as the stand working rolls (1, 8) supported by supporting rolls (2-6a, 9-13a) and/or undriven supporting rollers, the lower guard plates (21) each being connected to the lower member (14) of the stand pivotably around a pivot (22) disposed axis-parallel with the working rolls (1, 8), the objective was to improve the protective effect of the guard plates (15, 21), while at the same time reducing expenditure on the lifting means required to lift the upper working roll (1).
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: September 24, 1996
    Assignee: Sundwiger Eisenhutte Maschinenfabrik GmbH & Co.
    Inventors: Bernd Berger, Peter Reinthal, Manfred Benfer
  • Patent number: 5542349
    Abstract: The printing products (33) to be pressed run through in an imbricated formation (S), in which the fold edges (33a) of the printing products (33) lie at the top, between the pressing rollers (3, 4, 5, 6) of two pairs of pressing rollers (1, 2) arranged one behind the other. The upper pressing rollers (3, 5) of each pair of pressing rollers (1, 2), which come directly into contact with the fold edges (33a), are fixedly mounted. On the other hand, the other pressing rollers (4, 6) of each pair of pressing rollers (1, 2) are mounted on each side in a common mounting (15), with the sides being resiliently mounted on pneumatic springs (16). The pressing rollers (3, 4, 5, 6) are driven individually by means of flexible drive belts (17, 18, 19, 20). By this arrangement, the printing products (33) can be pressed satisfactorily and gently even at high conveying speed.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: August 6, 1996
    Assignee: Ferag AG
    Inventor: Reinhard Gosslinghoff
  • Patent number: 5483873
    Abstract: A paper web is passed through a calendering nip that is formed between a roll which has been provided with a soft face and a heatable hard roll. The heatable roll is heated so as to plasticize the surface layer of the paper web that is placed at the side of the heatable roll, preferably so that the temperature of the surface layer in the calendering nip exceeds the glass-transition temperatures of the polymers contained in the paper. Before entering into the calendering nip, the paper web is moistened, so as to lower the glass-transition temperatures of the polymers contained in the paper, and pre-heated. The pre-heating of the paper web is carried out by bringing the paper web into contact with the heatable roll before the web enters the calendering nip and by, before the calendering nip, feeding steam or water onto the face of the paper web that is placed at the side of the heatable roll so as to improve the transfer of heat from the hot roll to the paper web.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: January 16, 1996
    Assignee: Valmet Paper Machinery Inc.
    Inventors: Pekka Koivukunnas, Harri Kuosa, Jussi Tuomela, Markku Ellila, Mikko Tani
  • Patent number: 5471921
    Abstract: An apparatus for production of dewatered and loosened biopulp, wherein precrushed raw biopulp is press fed by pistons (2) against a pair of counter-rotating press rolls (4, 5) between which the biopulp is dewatered. The pulp is then fed into a backpressure vessel (7) maintained at an overpressure, which prevents water from entering the backpressure vessel and remoistening the biopulp. The biopulp leaves the backpressure vessel through an air-tight compartment feeder (9) constructed like a revolving door. The press rolls include one of solid metal (5) and another (4) with a number of elastically mounted plates which can move radially in response to a radial load.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: December 5, 1995
    Inventors: Josef Kubat, Jan Abom, Carl Klason, Frederik von Bulsingslowen
  • Patent number: 5469783
    Abstract: A large cylindrical enclosure shaped to look like a huge beverage can has a recessed area in its outer wall containing an operator's panel and an opening into the interior for inserting empty recyclable beverage cans. Inside the enclosure is a conveyor for receiving the inserted cans, a discriminator for distinguishing between ferrous and non-ferrous cans and a pneumatic transporter for carrying the cans to a mechanical crusher which compacts the cans individually and discharges them into a temporary storage area from which they are removed from time to time for recycling. The operator'panel includes a photoelectric sensor for initiating operation of the mechanisms in the interior of the structure and may also include various visual readouts as well as a dispenser for feeding out coins, printed credit slips and receipts.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: November 28, 1995
    Assignee: Eugene L. Fry
    Inventor: Gene Fry
  • Patent number: 5469784
    Abstract: In a calender assembly for treating a web of material (1) in a nip (4) formed by a pair of press rolls (2, 3), at least one roll (3) is heated. In front of and/or behind the nip (4) there is at least one additional roll (8, 9, 14) which can be displaced into the path of the web of material (1) in such a way that the angle of wrap of the web of material (1) at the heated press roll (3) increases. In this way, easy and quick introduction of the web of material is made possible. Further, the heat losses of the heated roll are reduced.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: November 28, 1995
    Assignee: Sulzer-Escher Wyss GmbH
    Inventor: Harald Hess
  • Patent number: 5456802
    Abstract: A vacuum/blowing sheave on the end of the lower calender roll of a papermaking machine threads a tissue web tail from a Yankee dryer to a take-up reel through the calender. The sheave is positioned adjacent to the outlet of the threader tube from the Yankee dryer, where the vacuum portion of the sheave picks up the tail and transports it towards the take-up reel. Upon transiting the closed nip of the calender, the tail is blown by a short blowing section on the sheave into the tube threader which leads to the take-up reel.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: October 10, 1995
    Assignee: Beloit Technologies, Inc.
    Inventor: Brian J. Worcester
  • Patent number: 5439366
    Abstract: A safety device for the roll space within a calender or other roll machine is disclosed. The rolls when rotating, excite oscillations in the beam at the resonant frequency of the beam. This can occur during start-up or during normal operation. The safety device of the present invention comprises a beam and additional mass that is oscillatorily suspended from the beam in order to reduce the amplitude of the beam oscillations at the beam resonant frequency. In addition, a damping element between additional mass and the beam is used to reduce any undesired oscillations due to newly created resonant frequencies introduced into the system.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: August 8, 1995
    Assignee: Kleinewefers GmbH
    Inventors: Hans-Rolf Conrad, Jochen Autrata, Albert Hille
  • Patent number: 5427021
    Abstract: A calender for material webs of paper or the like comprises at least one pressing gap. At least one temperature controlled tempering roller is disposed adjacent to the gap. A charging device is disposed adjacent to the gap. The charging device electrostatically charges the material web before the material web contacts the tempering roller.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: June 27, 1995
    Assignee: Sulzer Papertec Krefeld GmbH
    Inventor: Hans-Rolf Conrad
  • Patent number: 5427020
    Abstract: A finger-protection device for a roller gap of a paper-calender with heated rollers has a hollow body (4) extending along the roller gap, with a front wall (5) facing a roller (3), defining the roller gap, a dome shaped rear wall (6), and two end walls (8). The strips (9, 10) forming the longitudinal edges of the front and rear walls are at an angular position in relation to the front and rear walls (5, 6) and are directed to the rollers (2, 3) limiting the roller gap. They provide a maximum distance (d) from the rollers (2, 3), which does not permit the passing through of one's fingers between a longitudinal edge and the adjacent roller (2, 3). The hollow body (4) is supported at its ends and can be adjusted relative to the rollers (2, 3). In order to simplify the manufacture and operational handling of the finger-protection device (1, 2) and also maintain a non-exceedable maximum distance (d) to the rollers during the operation, the hollow body (4 ) consists of fiber-reinforced synthetic resin plastic.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: June 27, 1995
    Assignee: Sulzer Papertec Krefeld GmbH
    Inventors: Hans-Rolf Conrad, Horst Castner
  • Patent number: 5357854
    Abstract: A sheet calendering method and apparatus including a calendering cylinder, a delivering cylinder, and a conveyor for transporting sheets between the calendering cylinder and the delivering cylinder; wherein the conveyor includes two flexible elongated members forming parallel endless loops around the calendering and delivering cylinders, a plurality of support members attached between the parallel loops, and a plurality of calendering plates each linked to an adjacent plate by the support members to form an endless belt.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: October 25, 1994
    Assignee: Epic Products International Corp.
    Inventors: Harvey Dahlgren, Scott R. Johnson
  • Patent number: 5300184
    Abstract: A press roll apparatus temporarily or finally bonds two glass sheets with an adhesive intermediate film sandwiched therebetween to manufacture a laminated glass. The press roll apparatus has a plurality of drive roll units each having a pair of upper and lower presser rolls operatively coupled to a drive source and rotatable thereby for pressing the glass sheets therebetween, and a plurality of free roll units each having a pair of upper and lower presser rolls freely rotatable for pressing the glass sheets therebetween. The drive roll units and the free roll units are housed in a frame and vertically positionally adjustably supported by the frame, the frame having a pair of horizontal shafts projecting outwardly. The frame is supported on a support frame by the horizontal shafts for angular movement about the horizontal shafts, the support frame having a pair of horizontally spaced vertical support columns.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: April 5, 1994
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventor: Hiroaki Masunaga
  • Patent number: 5282415
    Abstract: This invention relates to an apparatus including pairs of rollers for supporting pressure rolls in a laminating apparatus. The rollers provide the pressure rolls with a uniform pressure distribution across the width of the pressure roll nip.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: February 1, 1994
    Assignees: Windmoller & Holscher, Du Pont de Nemours (Deutschland) GmbH
    Inventor: Herbert Konermann
  • Patent number: 5275096
    Abstract: A sheet calendering method and apparatus including a calendering cylinder, a delivering cylinder, and a conveyor for transporting sheets between the calendering cylinder and the delivering cylinder; wherein the conveyor includes two flexible elongated members forming parallel endless loops around the calendering and delivering cylinders, a plurality of support members attached between the parallel loops, and a plurality of calendering plates each linked to an adjacent plate by the support members to form an endless belt.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: January 4, 1994
    Assignee: Epic Products International Corp.
    Inventors: Harvey Dahlgren, Scott R. Johnson
  • Patent number: 5271319
    Abstract: Roll press or mill with two adjacent rolls (2, 4) with cooperating compression surfaces, mounted in bearing housings located between an upper and lower box girder, one roll being adjustable, with a material feed system with at least one fill chamber (6) with walls (22, 24) parallel to the roll axes and extending into the roll gap (8) and with apparatus to eliminate the air entering the roll gap with the material, provided with air admission holes in the region of the roll gap leading into an air collection chamber connected with air outlets. On each side of the fill chamber walls, parallel to the axes, chambers (16, 18) extend essentially over the breadth of the compression surfaces of the rolls and are closed at their ends. The chambers are each connected to the roll gap by a passage (28, 30) formed between the compression surfaces at the perimeter of the rolls and the lower end of the walls adjacent to the walls of the filling chamber. The chambers (16, 18) are provided with air outlets (34, 36).
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: December 21, 1993
    Assignee: Maschinenfabrik Koppern GmbH & Co. KG
    Inventor: Werner A. Plagemann
  • Patent number: 5246176
    Abstract: Cleaning means having at least one blast pipe (8) which ensure uniform falling conditions inside return conduits (6) are arranged on a squeezing roll mill (1, 2) having lateral return conduits (6).
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: September 21, 1993
    Assignee: Buhler AG
    Inventors: Wilhelm Fetzer, Bruno Burkhard
  • Patent number: 5241903
    Abstract: A safety guard for the nip of two neighboring rolls in a calender has an elongated support which is located in front of the nip and has two elongated strip-shaped barriers each adjacent but spaced apart from the peripheral surface of one of the rolls. The support is mounted on the bearings for one of the rolls for pivotal movement about an axis which is parallel to the nip and carries cams which are biased against rollers on the bearings for the other roll by one or more reversible motors. If the bearings for one of the rolls are moved relative to the bearings for the other roll, the cams move along the respective rolls and/or vice versa, whereby the orientation of the support and of the barriers thereon is changed so that the width of the clearances between the barriers and the peripheral surfaces of the adjacent rolls does not exceed a maximum permissible value such as would enable a careless operator to introduce a finger into the nip.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: September 7, 1993
    Assignee: Kleinewefers GmbH
    Inventor: Janez Lampic