DE1184145B - Tubular bodies of plastic, in particular fishing rods - Google Patents

Tubular bodies of plastic, in particular fishing rods

Info

Publication number
DE1184145B
DE1184145B DEC12617A DEC0012617A DE1184145B DE 1184145 B DE1184145 B DE 1184145B DE C12617 A DEC12617 A DE C12617A DE C0012617 A DEC0012617 A DE C0012617A DE 1184145 B DE1184145 B DE 1184145B
Authority
DE
Germany
Prior art keywords
glass fibers
plastic
inner layer
proportion
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEC12617A
Other languages
German (de)
Inventor
Arthur Leslie Scott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Columbia Products Co
Original Assignee
Columbia Products Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Columbia Products Co filed Critical Columbia Products Co
Priority to DEC12617A priority Critical patent/DE1184145B/en
Publication of DE1184145B publication Critical patent/DE1184145B/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K87/00—Fishing rods
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
    • D04H3/073—Hollow cylinder shaped
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
    • D04H3/077—Stick, rod or solid cylinder shaped
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Internat. KL: A Ol kBoarding school KL: A Ol k

Deutsche Kl.: 45 h - 87/00German class: 45 h - 87/00

Nummer: 1184145Number: 1184145

Aktenzeichen: C12617III/45 hFile number: C12617III / 45 h

Anmeldetag: 27. Februar 1956 Filing date: February 27, 1956

Auslegetag: 23. Dezember 1964Opening day: December 23, 1964

Die Erfindung betrifft einen Rohrkörper aus Kunststoff, insbesondere eine Angelrute, der aus:, einer äußeren niit in Längsrichtung verlaufenden Glasfasern verstärkten und einer inneren Schicht; die durch in von der Längsrichtung abweichender Riehtung verlaufenden Fasern verstärkt ist, besteht.The invention relates to a tubular body made of plastic, in particular a fishing rod made of: an outer longitudinal glass fiber reinforced and an inner layer; the direction deviating from the longitudinal direction running fibers is reinforced.

Die der Erfindung zugrunde liegende Aufgabe besteht darin, einen Rohrkörper zu schaffen, der bei einer gegebenen Biegsamkeit eine große FöjäÄ&e'steH^ digkeit des Widerstandsquerschnittes aufweist. Dies ist insbesondere bei Angelruten von Bedeutung, um die Federkonstante beim Durchbiegen über den ganzen Biegebereich konstant zu halten.The object of the invention is to create a tubular body that is used in a given flexibility a great FöjäÄ & e'steH ^ the resistance of the cross-section. This is especially important with fishing rods to keep the spring constant constant over the entire bending range when bending.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß ein elastisch verformbarer Kunststoff verwendet wird und der größere Anteil der Glasfaser in der Außenschicht liegt, während der kleinere Anteil der Glasfasern in der Innenschicht in enger, etwa senkrecht zur Rohrachse verlaufender Wicklung angeordnet ist.According to the invention, this object is achieved in that an elastically deformable plastic is used and the larger proportion of the glass fiber lies in the outer layer, while the smaller proportion of the glass fibers arranged in the inner layer in a tight winding running approximately perpendicular to the pipe axis is.

Zweckmäßigerweise beträgt dabei der Anteil der Glasfasern der Außenschicht etwa 80 % und der Anteil der Glasfasern der Innenschicht etwa 20 %.The proportion of glass fibers in the outer layer is expediently about 80% and that proportion of the glass fibers of the inner layer about 20%.

Diese Aufteilung der Fasern bei dem erfindungsgemäßen Rohrkörper hat den Vorteil, daß ein Stab geschaffen wird, der bei Biegebeanspruchung nicht leicht eindrückbar ist. Gleichwohl ist der so geschaffene Stab besonders leicht, ohne daß seine Festigkeitseigenschaften durch zusätzliche Verstärkungen oder Erhöhungen der Glasfasermenge erkauft sind.This division of the fibers in the tubular body according to the invention has the advantage that a rod is created, which is not easily indented when subjected to bending. Nevertheless it is created in this way Rod particularly light without losing its strength properties through additional reinforcements or increases in the amount of fiberglass are bought.

Zwar ist es an sich bekannt, auf spiralig gewickelte Innenschichten von Glasfasern achsparallele Längsschichten mittels Kunststoff aufzukleben, jedoch wurde bisher noch kein Weg gewiesen, die Glasfasern so anzuordnen und aufzuteilen, daß die eingangs angegebene Aufgabe gelöst wird.It is known per se to apply axially parallel longitudinal layers to spirally wound inner layers of glass fibers glued on by means of plastic, but no way has yet been shown, the glass fibers to be arranged and distributed in such a way that the object specified at the beginning is achieved.

So ist es bekannt, Stäbe aus einem Glasfasergewebe herzustellen, welches parallele Fasern aufweist. Bei diesen Stäben sind an einzelnen Stellen Verstärkungen in Form spiraliger Windungen vorgesehen. Es ist weiter bekannt, bei der Hohlrohrherstellung aus glasfaserarmiertem Kunststoff abwechselnd Wickel- und Längsfaserschichten vorzusehen. Schließlich ist eine Angelrute bekannt, deren Querschnitt sich auf ihrer Länge schrittweise ändert, und zwar entsprechend der Kubikwurzel des Verhältnisses des Abstandes zwischen der einzelnen Bezugsstelle und dem verjüngten Ende der Angelrute zu ihrer Länge.It is known to produce rods from a glass fiber fabric which has parallel fibers. at These rods are provided with reinforcements in the form of spiral windings at individual points. It is also known to use alternating winding and to provide longitudinal fiber layers. Finally, a fishing rod is known, the cross-section of which is based on its length gradually changes according to the cube root of the ratio of the distance between the single reference point and the tapered end of the fishing rod to its length.

Es hat sich gezeigt, daß bei der erfindungsgemäßen Anordnung der relativ kleine Anteil der Innenschicht völlig ausreicht, um ein Eindrücken und damit ein Abknicken des Stabes zu verhüten. Die Fasern derIt has been shown that in the arrangement according to the invention the relatively small proportion of the inner layer completely sufficient to prevent the rod from being pressed in and thus kinked. The fibers of the

Rohrkörper aus Kunststoff, insbesondere
Angelrute .. ;fc:. .ς;.,.,.: .,,: sTubular bodies made of plastic, in particular
Fishing rod ..; fc :. .ς;.,.,.:. ,,: s

Anmelden :..;■:::...- :,vr. : .;:v ■ :\ ..-..· .·...·.
.■ öölümbia-prööttctsGontpany, ' - ■'■.-.'■ ■■■-■'■
■' Columbia; S^fe (V. StA:)' "L w ' : '■"■" Register: ..; ■ ::: ...- :, vr. :.;: v ■: \ ..- .. · . · ... ·.
. ■ öölümbia-prööttctsGontpany, '- ■' ■ .-. '■ ■■■ - ■' ■
■ 'Columbia; S ^ fe (V. StA :) '" L w ' : '■" ■ "

Vertreter:Representative:

Dr.-Ing. H. Ruschke, Patentanwalt,Dr.-Ing. H. Ruschke, patent attorney,

Berlin 33, Auguste-Viktoria-Str. 65Berlin 33, Auguste-Viktoria-Str. 65

Als Erfinder benannt:Named as inventor:

Arthur Leslie Scott, Columbia, S. C. (V. St. A.)Arthur Leslie Scott, Columbia, S. C. (V. St. A.)

Außenschicht nehmen dabei die Zug- und Druckkräfte auf.The outer layer absorbs the tensile and compressive forces.

so Die Erfindung wird im folgenden an Hand eines Ausführungsbeispieles in der Zeichnung näher erläutert. So the invention is in the following on the basis of one Embodiment explained in more detail in the drawing.

F i g. 1 zeigt eine Außenansicht des Stabes;
F i g. 2 zeigt in perspektivischer Darstellung teilweise im Schnitt einen Abschnitt dieses Stabes;F i g. Fig. 1 shows an external view of the rod;
F i g. Fig. 2 shows, in a perspective view, partially in section, a portion of this rod;

F i g. 3 ist eine Ansicht ähnlich wie F i g. 2 für eine andere Ausführungsform.F i g. 3 is a view similar to FIG. 2 for another embodiment.

Der in F i g. 1 dargestellte Rohrkörper 1 weist nach F i g. 2 eine aus in Längsrichtung des Rohrkörpers 1 verlaufenden Glasfasern bestehende Außenschicht 2 auf. Die Glasfasern 3 dieser Außenschicht 2 sind auf einer Innenschicht 4 aufgebracht, welche aus Glasfasern S besteht, die in enger, etwas senkrecht zur Rohrachse verlaufender Wicklung angeordnet sind.The in F i g. 1 shown tubular body 1 shows F i g. 2 an outer layer 2 consisting of glass fibers running in the longitudinal direction of the tubular body 1 on. The glass fibers 3 of this outer layer 2 are applied to an inner layer 4, which consists of glass fibers S, which are arranged in a narrow, somewhat perpendicular to the tube axis winding.

Die Glasfasern beider Schichten sind untereinander durch einen elastisch verformbaren Kunststoff verbunden. Vorzugsweise kann hierfür ein härtbares Polyester-Kunstharz verwendet werden, welches auf die Glasfasern vor deren Montage aufgebracht wird.The glass fibers of both layers are connected to one another by an elastically deformable plastic. A curable polyester synthetic resin can preferably be used for this purpose, which is based on the glass fibers are applied prior to their assembly.

Es ist zweckmäßig, etwa 30 Gewichtsteile Kunstharz gegenüber 70 Gewichtsteile Glasfasern zu verwenden.It is advisable to use about 30 parts by weight of synthetic resin versus 70 parts by weight of glass fibers.

Die Montage des Rohrkörpers geht wie folgt vorThe assembly of the pipe body proceeds as follows

sich:themselves:

Die getränkten Glasfasern 5 der Innenschicht 4 werden auf einen Kern eng aneinanderliegend aufgewickelt. Anschließend werden die Glasfasern 3 der Außenschicht 2 aufgebracht. Der so entstandene Körper wird mit einem Kunststoffstreifen 6 bewickelt, der die Fasern verdichtet und in ihrer Form zusammenhält. The impregnated glass fibers 5 of the inner layer 4 are wound onto a core in close contact with one another. The glass fibers 3 of the outer layer 2 are then applied. The resulting body is wrapped with a plastic strip 6, which compresses the fibers and holds them together in their shape.

Anschließend erfolgt unter Einwirkung von Wärme ein Aushärten des Kunststoffes. Schließlich werdenThe plastic then cures under the action of heat. Eventually be

409 759/7409 759/7

sowohl der Wickelkern als auch die Kunststoffumhüllung 6 entfernt.both the winding core and the plastic casing 6 removed.

Bei diesem so hergestellten Rohrkörper verhindern bei einer Biegebeanspruchung die Glasfasern 5 der Innenschicht 4 ein Einknicken des Rohrkörpers und damit gleichzeitig ein Auseinanderspreizen der Glasfasern 3 der Außenschicht 2. Andererseits nehmen die Glasfasern 3 der Außenschicht 2 die Zug-und Druckkräfte auf, so daß sie ihrerseits ein Trennen der einzelnen Windungen der Innenschicht voneinander verhindern. In this tubular body produced in this way, the glass fibers 5 prevent the bending stress Inner layer 4 a buckling of the tubular body and thus at the same time a spreading apart of the glass fibers 3 of the outer layer 2. On the other hand, the glass fibers 3 of the outer layer 2 take the tensile and compressive forces so that they in turn prevent the individual turns of the inner layer from separating from one another.

Bei der in Fig. 3 dargestellten Ausführungsform besteht die Innenschicht 104 aus spiralförmig verlaufenden, jedoch sich kreuzenden, d. h. geflochtenen Glasfasern 105. In the embodiment shown in FIG. 3, the inner layer 104 consists of spiral-shaped, but intersecting, ie braided glass fibers 105.

Claims (2)

Patentansprüche:Patent claims: 1. Rohrkörper aus Kunststoff, insbesondere Angelrute, der aus einer äußeren mit in Längsrichtung verlaufenden Glasfasern verstärkten und einer inneren Schicht, die durch in von der Längsrichtung abweichender Richtung verlaufenden Fasern verstärkt ist, besteht, dadurch gekennzeichnet, daß'^in elastisch verformbarer Kunststoff verwendet wird, und der größere Anteil der Glasfasern (3) in der Außenschicht (2) liegt, während der kleinere Anteil der Glasfasern (5) in der Innenschicht (4) in enger, etwa senkrecht zur Rohrachse verlaufender Wicklung angeordnet ist.1. Tubular body made of plastic, in particular fishing rod, which consists of an outer with in the longitudinal direction Trending glass fiber reinforced and an inner layer that runs through in from the The fibers running in a different direction in the longitudinal direction are reinforced, characterized in that '^ in elastically deformable Plastic is used, and the greater proportion of glass fibers (3) in the outer layer (2) lies, while the smaller portion of the glass fibers (5) in the inner layer (4) is closer, approximately perpendicular to the tube axis extending winding is arranged. ίο 2. Rohrkörper nach Anspruch 1, dadurch gekennzeichnet, daß der Anteil der Glasfasern {3) der Außenschicht (2) etwa 80% und der Anteil der Glasfasern (5) der Innenschicht (4) etwa 20% beträgt.ίο 2. Pipe body according to claim 1, characterized in that that the proportion of glass fibers {3) the outer layer (2) about 80% and the proportion of glass fibers (5) of the inner layer (4) about 20%. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 643 938, 625 946,
497088;Considered publications:
German patent specifications No. 643 938, 625 946,
497088; schweizerische Patentschrift Nr. 164 605;
so USA.-Patentschriften Nr. Swiss Patent No. 164 605;
see U.S. Patents No. 2 726185, 2 594 693,
2341053;2 726185, 2 594 693,
2341053; »Kunststoffe«, 1952, H. 12."Kunststoffe", 1952, no.12. Hierzu 1 Blatt Zeichnungen 1 sheet of drawings «9 759/7 12.64 © Bundesdruckerei Berlin«9 759/7 12.64 © Bundesdruckerei Berlin
DEC12617A 1956-02-27 1956-02-27 Tubular bodies of plastic, in particular fishing rods Pending DE1184145B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC12617A DE1184145B (en) 1956-02-27 1956-02-27 Tubular bodies of plastic, in particular fishing rods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC12617A DE1184145B (en) 1956-02-27 1956-02-27 Tubular bodies of plastic, in particular fishing rods

Publications (1)

Publication Number Publication Date
DE1184145B true DE1184145B (en) 1964-12-23

Family

ID=7015251

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC12617A Pending DE1184145B (en) 1956-02-27 1956-02-27 Tubular bodies of plastic, in particular fishing rods

Country Status (1)

Country Link
DE (1) DE1184145B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043074A (en) * 1975-12-31 1977-08-23 Skyline Industries, Inc. Graphite fiber fishing rod
DE2659003A1 (en) * 1976-04-12 1977-10-20 Shakespeare Co FLEXIBLE AND ELASTIC FISHING ROD DESIGNED AS A HOLLOW BODY
US4082277A (en) * 1976-08-03 1978-04-04 Auken Richard L Van Golf club shaft
US4083140A (en) * 1975-08-13 1978-04-11 Exxon Research & Engineering Co. Fishing rod ferrule
EP0062973A2 (en) * 1981-04-13 1982-10-20 Mitsubishi Rayon Co., Ltd. Laminated pre-impregnated carbon fiber structures
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
US5897476A (en) * 1994-08-04 1999-04-27 Valmet Corporation Variable-crown roll loaded by means of shoes

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE497088C (en) * 1930-05-02 Boettger Paul Wood expansion of shafts and routes
CH164605A (en) * 1932-08-08 1933-10-15 Eduard Esser & Co G M B H Process for the production of shaped pieces with straight, angular or double curved surfaces.
DE625946C (en) * 1933-12-07 1936-02-24 Philipp Betz Machine for the continuous production of wooden pipes of great length from crosswise windings of veneer tapes
DE643938C (en) * 1932-07-05 1937-04-21 Gerhard Homey Process for the manufacture of cylindrical vessels
US2341053A (en) * 1941-04-24 1944-02-08 Robert B Ransom Flexure member
US2594693A (en) * 1948-12-07 1952-04-29 Sharples Corp Hollow circular article and method of making same
US2726185A (en) * 1952-04-26 1955-12-06 Arthur M Howald Method of forming tapered glass rods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE497088C (en) * 1930-05-02 Boettger Paul Wood expansion of shafts and routes
DE643938C (en) * 1932-07-05 1937-04-21 Gerhard Homey Process for the manufacture of cylindrical vessels
CH164605A (en) * 1932-08-08 1933-10-15 Eduard Esser & Co G M B H Process for the production of shaped pieces with straight, angular or double curved surfaces.
DE625946C (en) * 1933-12-07 1936-02-24 Philipp Betz Machine for the continuous production of wooden pipes of great length from crosswise windings of veneer tapes
US2341053A (en) * 1941-04-24 1944-02-08 Robert B Ransom Flexure member
US2594693A (en) * 1948-12-07 1952-04-29 Sharples Corp Hollow circular article and method of making same
US2726185A (en) * 1952-04-26 1955-12-06 Arthur M Howald Method of forming tapered glass rods

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083140A (en) * 1975-08-13 1978-04-11 Exxon Research & Engineering Co. Fishing rod ferrule
US4043074A (en) * 1975-12-31 1977-08-23 Skyline Industries, Inc. Graphite fiber fishing rod
DE2659003A1 (en) * 1976-04-12 1977-10-20 Shakespeare Co FLEXIBLE AND ELASTIC FISHING ROD DESIGNED AS A HOLLOW BODY
US4082277A (en) * 1976-08-03 1978-04-04 Auken Richard L Van Golf club shaft
EP0062973A2 (en) * 1981-04-13 1982-10-20 Mitsubishi Rayon Co., Ltd. Laminated pre-impregnated carbon fiber structures
EP0062973A3 (en) * 1981-04-13 1984-09-19 Mitsubishi Rayon Co., Ltd. Laminated pre-impregnated carbon fiber structures
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
EP0363887A3 (en) * 1988-10-11 1991-10-09 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
US5897476A (en) * 1994-08-04 1999-04-27 Valmet Corporation Variable-crown roll loaded by means of shoes

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