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Publication numberUS3590453 A
Publication typeGrant
Publication dateJul 6, 1971
Filing dateJun 19, 1968
Priority dateJun 19, 1968
Publication numberUS 3590453 A, US 3590453A, US-A-3590453, US3590453 A, US3590453A
InventorsEdward T Bryand
Original AssigneeMetal Tech Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Honeycomb roll
US 3590453 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Edward T. Bryand South Portland, Maine [21] Appl. No. 738,213

{22} Filed June 19, 1968 [45] Patented July 6, 1971 [73 l Assignee Metal-Tech, Inc.

Biddeford, Maine [72) Inventor {54} HONEYCOMB ROLL l0 Claims, 6 Drawing Figs.

[52] U.S. Cl 29/121, 210/402 [5l] lnt.Cl D21! 3/10 [50] Field of Search 29/121,

124, 125, 129, 130, 121 A, 123, 148.4, 455; 162/357, 368, 367, 372; 210/402, 403, 404; 161/68,l27,126,l35

[56] References Cited UNITED STATES PATENTS 3,100,928 8/1963 Bryand 29/121 3,105,043 9/1963 Rich et al 162/368 X 3,259,961 7/1966 Bryand 29/l48.4 FOREIGN PATENTS 525,753 5/1955 ltaly 29/455 Primary Examiner-Walter A. Scheel Assistant Examiner-Leon G. Machlin Attorney-Pearson & Pearson ABSTRACT: An improved cylindrical suction roll suitable for carrying a foraminous screen thereon for forming paper, said cylindrical roll being of the type formed by alternating straight and undulating strips attached to one another and running axially between end members, and the improvement comprising the projection of said straight strips radially beyond said undulating strips to fonn unitary, circumferentially spaced, continuous axial supports for outer meshed layers. The projecting straight strips are firmly anchored in the honeycomb openwork of the roll by notching the nodes of the undulated strips and applying fillet welds in the notches to create a countersink, or tapered edge, in the area of attachment.

PATENTEU JUL 61971 snm 1 ur 2 INVENTOR. Edward T. Brycmd BY *p 2 z ,z a n v-P AT TORNEYS PAENEuJuL sien 3590.453

SHEET 2 UF 2 A TTORNEYS HONEYCOMB ROLL BACKGROUND OF THE INVENTION Cylindrical honeycomb and half-hexagonal rolls are known to the art and have gained wide acceptance in a large number of heavy duty applications where a high ratio of strength to open area is desirable, as for example in cylindrical suction rolls and other type of filter support media.

lt has now been discovered that an improvement in such rolls as have been described in U.S. Pat. Nos. 3,100,928 and 3,259,961 issued to Edward T. Bryand allows such apparatus to have unexpected advantages over other types of rolls in such applications as papermaking and the likes, wherein a Fourdrinier wire is trained over a breast roll for passing the paper stock or other composition through a dewatering action.

For example, in U.S. Pat. No. 2,418,600 to Ostertag et al., of Apr. 8, 1947, a breast roll is disclosed which comprises a relatively thick walled hollow roll having countersunk drilled perforations, axially milled grooves, projecting axial blades seated in the grooves, notches in the blades, continuous circumferential steel tapes yet in the notches and an overall cover of heavy screen mesh, all for supporting a Fourdrinier wire. lt will be understood that such a structure is costly to assemble, subject to inadvertent displacement of the parts and constitutes a considerable barrier to the passage of liquid into the interior of the roll and to the application of suction from the roll interior to the liquid in the outer periphery ofthe roll.

In the device of this invention, the roll is a unitary hollow cylindrical honeycomb openwork formed of alternate straight and undulated thin strips of metal extending axially from one end support to the other. The straight strips extend outwardly beyond the undulated strips to also form axial blades, or baffles, which cannot become displaced because welded into the openwork. The outer extremities of the straight strips may be notches to receive the conventional stainless steel tapes for supporting thy conventional meshed outer layer, or a layer of thin honeycomb openwork may be supported on the straight strips for the same purpose.

By honeycombed rolls as used hereafter in this specification is meant any roll of the general type described in the aforementioned U.S. Pat. No. 3,259,961, wherein undulated strips are spaced by straight strips. Said undulated strips include half-hexagonal bent strips or any of the functional equivalents thereof.

SUMMARY OF THE INVENTION Therefore it is an object of the invention to provide an improved breast roll suitable for supporting a Fourdrinier wire during papermaking.

It is another object of the invention to provide an improved suction or dewatering roll for use in conjunction with a head box.

Another object of the invention is to provide an improved honeycomb roll.

Still another object of the invention is to provide a novel means of forming a breast roll whereby weight savings, economy, and increased flow through are achieved without shortening the effective life of the papermaking apparatus or losing any performance characteristics thereof.

AN ILLUSTRATIVE EMBODIMENT OF THE INVENTION FIG. l is a front elevation, partly in section, of a cylindrical roll constructed in accordance with the invention;

FIG. 2 is a fragmentary enlarged perspective section of the honeycomb structure according to the invention, slotted for supporting tapes;

FIG. 3 is a fragmentary enlarged plan view of the structure` shown in FIG. I;

FIG. 4 is a view along the section line 4-4 of FIG. l, showing the roll of the invention in use as a breast roll in a Fourdriniertype paper machine;

FIG. 5 is a perspective view of another embodiment of the invention; and

FIG. 6 is a perspective view of still another embodiment of thy invention. Referring to FIG. I, it is seen that a cylindrical roll l5 includes a pair of oppositely disposed, parallel, longitudinally spaced, circular end members I6 and 17, with the hollow, cylindrical, honeycomb openwork I8 extending therebetween. Each end member is preferably supported on a stationary hollow bearing journal 19 by means of a bearing plate 20 and bearing 21, the hollow journal forming a fluid conduit 22 connecting the interior of the roll to a source of suction 23. Each end member also includes an annular, peripheral inner face such as 25 or 26, the faces 25 and 26 preferably being flat, smooth, and normal to the longitudinal axis of the roll. The end members are slotted and are, con veniently, in the form of circular flanged rings 27 detachably secured to bearing plates 20.

The hollow cylindrical honeycomb openwork 18 has a generally cylindrical outer face 28 and cylindrical inner face 29 and is formed of thin metal strips of stainless steel, said strips upstanding on edge and bent to form radially extending flow passages into the interior of the roll. Openwork 18 consists of a plurality of alternate straight strips such as 31, 32 and 33 and undulated, sinuate or half-hexagonally bent strips 34 and 3S, the strips extending axially from the inner face 25 of one end member to the opposite inner face 26 of the other end member. The terms undulate and sinuate are used herein to include half hexagonal bent strips, or any equivalent configuration which will produce a useful pattern of flow passages, a useful embossing pattern or the like.

The preferred configuration, however, is that wherein nodes 36 and 37 of adjacent bent strips are oppositely disposed to form a series of honeycomb-shaped conduits split by a straight strip such as 32.

It is the particular relationship of the straight strip 32 to the bent strips such as 34 and 35 which constitute a major improvement of the invention. A complementary improvement is the configuration of the bent strips such as 35 and the means by which they are attached to straight strips.

Referring to FIGS. 2 and 3, it is seen that straight strips such as 31 are elevated above bent strips such as 34 by an altitude 38 which is preferably less than the altitude 40 of that portion of strips such as 31 which are in contact with bent strips such as 34.

As shown schematically in FIGS. 2 and 4, the upper edge portion 42 of strip 32 provides means for supporting a foraminous assembly 43 which may include circumferential steel tapes 44, seated in notches 45, a meshed screen 46, and a Fourdrinier wire 47.

It is also to be noted that nodes such as 36 of bent strips 34 are partly cut out as at 50. These cutouts 50 may be punched or drilled in circular configuration, and provide means for securing bent strips such as 34 to straight strips such as 32 without the necessity of having three thicknesses of metal at the points of attachment of nodes 36 to straight strips such as 32. A countersunk shaped tapered fillet 51 is welded, brazed, or otherwise applied within each cutout 50. Apparatus thus formed is easier to clean, and provides less resistance to airflow. Moreover, its fabrication is facilitated by the extra work room and weld area provided by cutouts 50 for the artisan to manipulate during anchoring of nodes 36 to straight strips such as 32.

The honeycomb roll 15 with its radially projecting strips, or baffles, 3l, 32 and 33, firmly anchored within, and integral with the honeycomb openwork by the weld fillets 51 in cutouts 50 of the recessed undulated strips 34 and 35, forms a series of full axial length, continuous liquid chambers 52 around the periphery of the roll in the plane of the projecting portions 38 of the straight strips. Unlike breast rolls of the prior art, in which the bottom, or inner wall of such chambers is formed by a solid roll surface having countersunk drilled suction holes, the bottom, or inner wall 53 of roll l5 is substantially open and permits free passage of fluid from the chambers 52 into the interior 54 of the roll. At the only locations where three strip thicknesses are joined, the outer edges thereof are tapered or beveled by the fillets 5l to constitute a single-thickness pointed edge, thereby increasing flow-through while avoiding a wide shelf effect upon which fibers in paper stock could lodge and accumulate.

As shown in FlG. 5, the outer edges 42 of the projecting straight strips 3l and 32 may be free of notches and support a suitable screen 46, and such a screen may be formed by a thin covering of honeycombed stainless steel strips 60, one-eighth inch thick or more, and constructed in the manner illustrated herein. ln such case, the thin honeycomb covering is inverted so that the projecting portion 6l ofthe straight strips 62 are on the inside for attachment by welding, brazing as at 63 or by other means, on the projecting portions 38 of the straight strips of the inner openwork.

As shown in FlG. 6, the outer covering 60 can be circumferentially constructed with the straight strips 66 running circumferentially, or slightly helically, to seat the projections 67 thereof in notches such as 45.

For convenience of illustration, the openworks of FIGS. 5 and 6 are flat planar, but it will be understood that, in forming a roll, the openworks are in curved planes.

What l claim is:

1. ln a rotary cylindrical roll of the type comprising a pair of spaced-apart, parallel, circular end members each having an annular peripheral inner face and a plurality of alternate straight strips and bent strips, extending axially between and spaced around, the said annular, inner faces of said members to form a cylindrical openwork, said bent strips each having uniformly spaced, flattened nodes in engagement with straight strips on each side thereof; and means connecting each said node to the adjacent straight strip for mutual support of said strips,

the improvement whereby said straight strips extend radially beyond said bent strips, around said roll.

2. Apparatus as defined in claim l wherein the length of radial extension of said straight strips above said quantitative bent strips is less than the radial distance of said straight strips which is adjacent to said bent strips.

3. Apparatus as defined in claim l wherein circumferentially adjacent ones of said bent strips are oppositely disposed to form a honeycombed-type openwork.

4. Apparatus as defined in claim l wherein a portion of said nodes are cut out from at least the outer edges thereof and said connecting means is a fillet weld partially filling said cutout to form a tapered face, thereby providing an improved fluid flow through the apparatus.

5. A honeycomb roll of the type having alternate straight and undulated thin strips extending axially from one end ofthe roll to the other end to define a half hexagonal patterned openwork characterized by each said straight strip extending radially outward substantially beyond the cylindrical plane defined by said undulated strips, and anchoring means, in the said cylindrical plane of said undulated strips, securing said strips to the adjacent portions of said straight strips to form a unitary, integral openwork. 6. A roll as specified in claim 5, wherein each said straight strip includes a plurality of spaced notches therealong for receiving and supporting the convolutions of circumferentially extending metal tapes, or strips. 7. A roll as specified in claim 5, plus a hollow cylindrical, foraminous assembly, supported on the outer terminal edge portions of said straight strips, said assembly being adapted to support a Fourdrinier wire trained partially therearound. 8. A roll as specified in claim 5, wherein said anchoring means comprises a plurality of cutouts, formed in at least thc outer edge of each node of said un dulates strips, and a fillet weld extending around the periphery of each cutout and securing each said node to the face of the adjacent straight strip. 9. A roll as specified in claim 8, wherein said fillet weld is beveled to form a sloping, outward-facing edge on each said cutout. l0. A honeycomb roll of the type having alternate straight and undulated thin strips extending from one end of the roll to the other end to define a half hexagonal patterned openwork, said roll being characterized by an inner said openwork on said roll, said inner openwork having a plurality of said straight strips spaced therearound and extending radially outward substantially beyond the cylindrical plane defined by the said undulated strips thereof; said inner openwork forming a re|atively strong, coarse-apertured support; an outer said openwork encircling said inner openwork and supported thereby, said outer openwork having a plurality of said straight strips and undulated strips the said straight strips being spaced therearound and extending radially inward substantially beyond the cylindrical plane defined by the said undulated strips, said outer openwork forming a relatively thin, fine-apertured screen; and means for firmly anchoring the inwardly projecting portions of the said straight strips of said outer openwork to the outwardly projecting portions of said straight strips of said inner openwork to f'orm a unitary composite honeycomb roll.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3100928 *Sep 15, 1960Aug 20, 1963Metal Tech IncHoneycomb openwork
US3105043 *May 26, 1960Sep 24, 1963Improved Machinery IncFilter
US3259961 *Dec 21, 1964Jul 12, 1966Metal Tech IncCylindrical honeycomb roll
IT525753A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3775234 *Sep 15, 1972Nov 27, 1973Improved Machinery IncGrid structure with waved strips having apexes with enlarged sections formed therein
US3781957 *Sep 15, 1972Jan 1, 1974Improved Machinery IncDrum including annular grid structure
US4619737 *Sep 6, 1985Oct 28, 1986Hermann Finckh Maschinenfabrik Gmbh & Co.Roller for machines in the paper-making industry
US4777070 *May 7, 1985Oct 11, 1988Institut Francais Du PetroleAlveolar structure designed to cover a curved surface and its realization process
US4889629 *Jan 13, 1988Dec 26, 1989E. Beaudrey & CieFilter panel with parallel passages and mechanical filter screen comprising same
US5042722 *Nov 9, 1989Aug 27, 1991Honeycomb Systems, Inc.Apparatus for jetting high velocity liquid streams onto fibrous materials
US5244572 *Dec 6, 1991Sep 14, 1993Lavalley Industries, Inc.Rotary drum filter with improved deck structure
US5480545 *Aug 3, 1994Jan 2, 1996Ingersoll-Rand CompanyCross braced vacuum washer
US5759141 *Mar 20, 1996Jun 2, 1998Voith Sulzer Finishing GmbhCalender roller
US5766120 *Mar 18, 1996Jun 16, 1998Voith Sulzer Finishing GmbhCalender roller having a cylindrical base body
US6055710 *Nov 10, 1997May 2, 2000Fleissner Gmbh & Co. MaschinenfabrikDevice for hydrodynamic needling of fleeces, tissues, or the like
US6146580 *Nov 17, 1998Nov 14, 2000Eldim, Inc.Depositing solidifying filaments on tubular honeycomb drum member having outer surface forming a contour to form a non-woven fibrous material substantially matching contour; removing fibrous material from drum
US6865784 *Dec 30, 2002Mar 15, 2005Rieter PerfojetMachine for producing a patterned textile product and nonwoven product thus obtained
US7143525Mar 3, 2005Dec 5, 2006Kimberly-Clark Worldwide, Inc.Through-air dryer assembly
US7308743 *Oct 21, 2002Dec 18, 2007Fleissner Gmbh & Co. MaschinefabrikMethod for embossed and colourless decoration and bonding of a fabric web and device therefor
US7448118 *Apr 19, 2006Nov 11, 2008Fleissner GmbhApparatus for patterning and stabilizing a workpiece web by use of an replaceable patterning shell
US7758945Nov 4, 2004Jul 20, 2010Rieter PerfojetMachine for producing a patterned textile product and nonwoven product thus obtained
US7841103Nov 3, 2006Nov 30, 2010Kimberly-Clark Worldwide, Inc.Through-air dryer assembly
US8562498 *Nov 13, 2007Oct 22, 2013Metso Paper, Inc.Press roll for washing and/or dewatering pulp, and a method for manufacturing or repairing such a press roll
US8656605Jul 28, 2010Feb 25, 2014Metso Paper Usa, Inc.System and method for thermal gradient control in thin shell structures
DE2342421A1 *Aug 22, 1973Mar 21, 1974Improved Machinery IncTrommel mit gitterkonstruktion
DE3801014A1 *Jan 15, 1988Jul 28, 1988Beaudrey & CieFilterplatte mit parallelen kanalisierungselementen und mit dieser bestuecktes mechanisches sieb
DE3907421A1 *Mar 8, 1989Sep 20, 1990Fleissner Maschf AgVorrichtung zum durchstroemenden behandeln von textilgut, papier od. dgl.
DE4012541A1 *Apr 19, 1990Jun 20, 1991Honeycomb SystemsVorrichtung zum einbringen von fluessigkeitsstrahlen mit hoher geschwindigkeit in eine faserfoermige bahn zur strahlverflechtung
DE10054361A1 *Nov 2, 2000May 8, 2002Voith Paper Patent GmbhRoller to guide and support a paper/cardboard web, at a production/finishing machine, has a core surrounded by a support layer covered with a protective and a functional layer in a lightweight and robust structure
DE19533823A1 *Sep 13, 1995Oct 10, 1996Voith Sulzer Finishing GmbhKalanderwalze
DE19533823C2 *Sep 13, 1995May 23, 2002Voith Paper Patent GmbhKalanderwalze
EP0315961A2 *Nov 9, 1988May 17, 1989FLEISSNER Maschinenfabrik AGApparatus for forcing a treating material through a textile material
EP0841424A1 *Nov 7, 1997May 13, 1998Fleissner GmbH & Co. MaschinenfabrikDevice for hydraulic needling of nonwoven fabrics, tissues
EP1044048A1 *Nov 12, 1998Oct 18, 2000Thermo Black Clawson Inc.Composite screen
EP1059377A1 *Jun 3, 2000Dec 13, 2000Gerold FleissnerSuction device for a textile machine, in particular for a hydroentangling machine
EP1550768A2 *Dec 21, 2004Jul 6, 2005Kimberly-Clark Worldwide, Inc.Through-air dryer assembly
WO2000029656A1 *Nov 17, 1999May 25, 2000Bontaites George JMethod and apparatus for manufacturing non-woven articles
WO2001042549A1 *Dec 8, 2000Jun 14, 2001George J Bontaites JrMethod and apparatus for controlling flow in a drum
WO2003035955A2 *Oct 21, 2002May 1, 2003Fleissner Maschf Gmbh CoMethod for embossed and colourless decoration and bonding of a fabric web and device therefor
WO2012015953A1 *Jul 27, 2011Feb 2, 2012Metso Paper Usa, Inc.System and method for thermal gradient control in thin shell structures
Classifications
U.S. Classification492/32, 210/402, 428/116, 492/49, 162/372, 162/357
International ClassificationD21F3/10, B01D33/067
Cooperative ClassificationD21F3/105, B01D33/067, B01D2201/282
European ClassificationB01D33/067, D21F3/10B