baber/WOPTO huggingface dataset:
Patent WO-0147378-A1 (WO)
Title: Verfahren zum herstellen gefüllter nahrungsmittel-hohlkörper
Inventor: STEIN VON KAMIENSKI BOTHO
IPC: A23L7/122
Filed: 2000-12-15
Abstract: Verfahren zum Herstellen gefüllter Nahrungsmittel-Hohlkörper, wobei jeder Hohlkörper mindestens einen zur Umgebung offenen, mit einem bei Umgebungstemperatur festen Füllmaterial gefüllten Hohlraum mit einer Querschnittsabmessung zwischen etwa 0,25 mm2 und etwa 1 cm2 aufweist, dadurch gekennzeichnet, daß die Hohlkörper in einem ersten Schritt bei reduziertem Druck mit dem Füllmaterial beschichtet werden, wobei eine Beschichtungstemperatur des Füllmaterials so eingestellt wird, daß das Füllmaterial fließfähig ist, und wobei in einem zweiten Schritt der Druck erhöht wird, damit das fließfähige Beschichtungsmaterial in die Hohlräume eintritt.
Patent WO-0218719-A1 (WO)
Inventor: FROEHLICH LUDWIG
IPC: E03C1/264
Filed: 2001-08-09
Abstract: L'invention concerne un filtre (10) de nettoyage des eaux usées, destiné notamment à retenir les cheveux, ce filtre pouvant être placé sur ou dans un tuyau d'écoulement (18). Ledit filtre (10) est constitué d'un corps de base (11), sur lequel est disposée une pluralité de crins (14). Ce corps de base (11) peut être disposé sur ou dans un tuyau d'écoulement (18) de telle sorte que la totalité des crins (14) remplit pratiquement entièrement au moins une section d'écoulement du tuyau (18), dont le passage est libre après la pose du corps de base (11), le courant ne pouvant alors s'écouler qu'à travers les interstices entre les crins (14).
Patent WO-02097965-A1 (WO)
Title: Kompensierte oszillatorschaltung
Inventor: FEILKAS KLAUS-JUERGEN
IPC: H03B5/08
Filed: 2002-05-29
Abstract: Es ist eine Oszillatorschaltung angegeben mit einem LC-Resonator (1), an den mehrere Strompfade (2, 3, 4) angeschlossen sind, welche miteinander parallel verschaltet und mit Schaltern (4) einzeln zu- und abschaltbar sind. Die Entdämpfungsverstärker (2) sind dabei mit dem Schwingkreis (1) zu dessen Entdämpfung gekoppelt. Die beschriebene Oszillatorschaltung ermöglicht ein Einstellen der Steilheit der Entdämpfung des Schwingkreises ohne Verstellung des Arbeitspunkts der Verstärker (2). Hierdurch können fertigungsbedingte Bauteil-Toleranzen und eine dadurch bedingte Amplitudenabweichung in einfacher Weise kompensiert werden. Die vorliegende Erfindung ist beispielsweise zum Einsatz in spannungsgesteuerten Oszillatoren zum Aufbau von Phasenregelschleifen in Massenherstellungsverfahren geeignet.
Patent WO-03004901-A1 (WO)
Title: Gummilager, vorzugsweise stabilisatorlager, und verfahren zur montage des lagers
Inventor: KAMMEL HELMUT
IPC: B60G21/055
Filed: 2002-06-19
Abstract: Die Erfindung betrifft ein Gummilager, vorzugsweise Stabilisatorlager, und Verfahren zur Montage des Lagers, welches zur Lagerung von vorzugsweise als Stabilisatoren ausgebildeten Profilstäben dient. Ihr liegt die Aufgabe zugrunde, ein Lager der genannten Art so auszubilden, dass sich die Montage vereinfacht. Dazu bilden der elastomere Lagerkörper (2) zur Aufnahme des Profilstabs sowie eine Klammer (3) zur gemeinsamen Befestigung des Lagers (1) und des Profilstabs an anderen Bauteilen nach der Erfindung bereits vor der Montage am Profilstab eine bauliche Einheit. Sowohl der Lagerkörper (2) als auch die diesen aufnehmende Klammer (3) weisen einen sich axial erstreckenden Öffnungsspalt (5) auf. Die Montage des Lagers (1) am Profilstab erfolgt unter Nutzung des Öffnungsspaltes (5), indem der Profilstab durch diesen hindurch in das Lager (1) gedrückt, also das Lager (1) auf den Profilstab aufgeklemmt wird. Die auf den Profilstab aufgeklemmte Baueinheit ist nach dem Schließen des Öffnungsspaltes (5) durch an den axialen Enden der Klammer (3) angeordnete Verschlussmittel (6, 6') am Profilstab unter Vorspannung des Elastomers fixierbar.
Patent WO-2004000535-A1 (WO)
Inventor: ORTLIEB HARTMUT
IPC: B29C70/46
Filed: 2002-06-22
Abstract: L'invention concerne un tissu, un maillage ou une structure constitué(e) de fils ou de brins enveloppés de matière plastique, ce tissu, ce maillage ou cette structure étant pourvu(e) d'un revêtement en plastique du type film sur au moins un côté. L'invention concerne également un procédé de production d'un tel tissu, d'un tel maillage ou d'une telle structure.
Patent WO-03057588-A1 (WO)
Title: Verschliessbare abgabevorrichtung zur abgabe eines in einem behälter enthaltenen flüssigen, viskosen oder pastösen mediums
Inventor: PAETZ WERNER
IPC: B65D47/24
Filed: 2003-01-10
Abstract: Es wird eine verschließbare Abgabevorrichtung zur Abgabe eines in einem Behälter enthaltenen flüssigen, viskosen oder pastösen Mediums beschrieben, mit einer Abgabeöffnung (33) zur Abgabe des sich im Behälter befindenden Mediums, und einer Verschlußvorrichtung, durch deren Betätigung eine Verbindung zwischen der Abgabeöffnung (33) und dem Behälter herstellbar und unterbrechbar ist, wobei die Verschlußvorrichtung durch ein längs der Verbindung zwischen der Abgabeöffnung und dem Behälter bewegbares Element gebildet wird. Die beschriebene Abgabevorrichtung zeichnet sich dadurch aus, daß die Verschlußvorrichtung derart ausgebildet ist, daß sie zum Herstellen einer Verbindung zwischen der Abgabeöffnung und dem Behälter zum Behälter hin bewegt werden muß, und zum Unterbrechen der Verbindung zwischen der Abgabeöffnung (33) und dem Behälter vom Behälter wegbewegt werden muß. Eine solche Abgabevorrichtung läßt sich leicht und einfach bedienen, und kann sich dennoch unter keinen Umständen selbständig öffnen.
Patent WO-03074887-A1 (WO)
Inventor: SEISENBERGER CLAUS
IPC: H04B1/59
Filed: 2003-02-24
Abstract: L'invention concerne un dispositif, en particulier un transpondeur actif à rétrodiffusion, servant à produire un signal d'oscillateur (s) en fonction d'un signal de base (sH). Ce dispositif comprend un oscillateur (SHFO) servant à construire activement ledit signal d'oscillateur (s) au moyen d'oscillations, une entrée (ANTs) conçue pour le signal de base (sH) et une sortie (ANTs) conçue pour le signal d'oscillateur produit (s). L'oscillateur (SHFO) peut être excité par le signal de base (sH) pour produire le signal d'oscillateur (s) de façon qu'il soit quasi-cohérent en phase avec le signal de base (sH). A des fins de transmission de données, le dispositif selon l'invention comprend également un dispositif d'insertion de données (TGEN) servant à insérer des données ou un signal de données (DatTX) dans le signal d'oscillateur (s). L'invention concerne en outre un récepteur correspondant approprié (E) destiné à recevoir et à traiter un signal de réception (e) produit et envoyé par un tel dispositif en tant que signal quasi-cohérent en phase (s). De manière opportune, ce récepteur comporte non seulement un dispositif de séparation (MIX) servant à supprimer les portions de signal de l'oscillateur (SHFO) contenues dans le signal de sortie (e) au moyen du signal de base d'un oscillateur (EHFO) se trouvant côté récepteur, mais également un dispositif de récupération de données (Demod) destiné à récupérer les données insérées (DatTX).
Patent WO-03072924-A1 (WO)
Inventor: GEISSLER ALBAN
IPC: F02K7/00
Filed: 2003-02-26
Abstract: The invention relates to a jet propulsion system comprising a combustion chamber (3'), a nozzle (7), and Venturi-pumps, whereby the Venturi-pumps comprise an inlet (4), a suction nozzle (2) and a pump nozzle (6), and one part of the waste gas flowing out from the combustion chamber (3') is guided to the inlet of the suction nozzle (2).
Patent WO-03088528-A1 (WO)
Inventor: GENTNER GUIDO
IPC: H04B10/00
Filed: 2003-04-01
Abstract: Procédé de détection d'un signal de commande dans un système de transmission de signaux optiques, selon lequel une proportion constante de la puissance de sortie dans une plage de fréquences déterminée du signal de commande est concentrée dans une région spectrale à bande étroite, puis déterminée après une phase de transmission à l'aide d'une détection à bande étroite de l'énergie concentrée autour de la région spectrale. L'absence de signal lors de la détection à bande étroite correspond à une interruption de la puissance de sortie et aucune source de pompage ne se trouve donc en fonctionnement, pour des raisons de sécurité. La détection à bande étroite du signal de commande permet en outre une mesure de la perte de transmission du système de transmission.
Patent DE-1806821-A1 (DE)
Title: Resistant coating for materials
Inventor: F KRIMMEL DR EBERHARD
IPC: C23C14/48
Filed: 1968-11-04
Abstract: The method concerns the application of an intensive ray of highly energised ions or neutrons or a mixture of highly and lowly energised ions and neutrons. The particles may consist of the same or a different material from that of the material to be surfaced. This results in a hard and strongly adhesive layer or film being produced, altering the electro-chemical potential of the material covered and rendering the layer of film resistant to chemical attack.
Patent DE-1809470-A1 (DE)
Title: Connection element for injection mould - and screw press
Inventor: ROLLE HELMUT
IPC: B29C48/03
Filed: 1968-11-18
Abstract: The connecting element is suitable for connecting round flanges. The connecting shell element consists of one or more segments joined by axial bolts with conical faces which surround and grip the flange. The radial pressure on conical faces causes axial preload in the flanges. The shell element conical faces can be in the form of screw threads which grip into the threads of the flange or the conical faces can be a series of parallel grooves with conical facces.
Patent DE-1810991-A1 (DE)
Title: Stable pancreatic concentrate contng insulin
Inventor: LEVIN EZRA
IPC: C07K14/625
Filed: 1968-11-26
Abstract: A solid, stable prepn. of finely-divided pancreatic tissue, substantially free from water, fat and pancreatic enzymes, but contng. the insulin activity of the correspg. quantity of fresh tissue. The product is stable at room temp. and may subsequently be used to extract insulin. Fresh, chopped ox or pig pancreas is treated with acid to deactivate the enzymes, then boiled ( 38 deg.) under reduced press. with 3-4 vols. of a lipophilic solvent, e.g. C2H4Cl2, to remove water azeotropically and the required product finally obtained by separation of the solvent. It has a water content of 6% and fat  2-3% and is pref. powdered.
Patent DE-1909144-A1 (DE)
Title: Bright gold alloy deposition for weak acid - electrolytes
Inventor: DETTKE DR MANFRED
IPC: C25D3/62
Filed: 1969-02-20
Abstract: The electrolyte contains at least one complex compound of an alloy metal with a phosphonic acid with at least two -PO- (OH)2 groups, the linkage being formed by an aliphatic hydrocarbon chain interrupted by an N atom. Specifically, the complex compound is formed by an alloy metal and methane diphosphonic acid, ethane-1,1-diphosphonic acid, propane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid, 1-amino ethane-1,1-diphosphonic acid, aminotrimethylene phosphonic acid, ethylene diaminotetramethylene phosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid, bis-(N-phosphonobenzyl)-N-benzyl amine, methyl amino-bis-methane phosphonic acid, ethylamino-bis methane phosphonic acid, or benzyl amino-bis-methane phosphonic acid. The metal is Ni, co, In, Cd, As, Sb, Mn, Cu and/or Ag. The electrolyte also contains potassium gold-(I)-cyanide.
Patent DE-1935103-A1 (DE)
Title: Europium activated rare earth-oxysulphide luminous - substances
Inventor: YAMAMOTO HAJIME
IPC: C09K11/08
Filed: 1969-07-10
Abstract: Luminous substances have formulae: (1-x-y)L2O2S.xEu2O2S.yPr2O2S and (1-x-y-z)L2O2S.xEu2O2S.yPr2O2S.ZTb2O2S, where L is lanthamide, esp. Gd or La; x = 0.03-0.05; y = 2x10-6 - 1x10-4, esp. 3.0x10-6 - 1.5x10-5, z = 2x10-6 4.0x10-5, esp. 7.0x10-6 to 2.0x10-5. Degree of luminosity is raised by the addition of Praseodymium and also Terbium if necessary.
Patent DE-1964496-A1 (DE)
Title: Pressure-sealed sectional underwater endo - scope
Inventor: WEBER ROBERT
IPC: G21C17/08
Filed: 1969-12-23
Abstract: An annular space is maintained between the inner lens carrier tube and the outer casing of a sectional endoscope for the inspection of water-flooded components of nuclear reactors. Gas from a bottle is admitted and any leakage, after a new joint has been made, is revealed by ascending gas bubbles.
Patent DE-1965375-A1 (DE)
Title: Antifrost additive for mortars and reinforc- - ed concrete
Inventor: JOSEF DR HORSTSCHAEFER HEINZ
IPC: C04B28/02
Filed: 1969-12-30
Abstract: Anti-frost additive for mortars and reinforced concrete. Composition, which can be mixed with cement in powder from, consists of (in % by wt.) powdered calcium formate 50-90; powdered area 20-50; mineral flour having latent, hydraulic, pozzolanic properties 5-20; an alkali metal nitrite 2-10, and a non-ionic wetting agent 0.2-1. The composition lowers the freezing point of water, without corroding the reinforcing elements of concrete, or producing efflorescence.
Patent DE-2004215-A1 (DE)
Title: Automatic cutting and tinning of metal wires
Inventor: HEYNE HANSJUERGEN
IPC: C23C2/00
Filed: 1970-01-30
Abstract: The wire is guided from a supply roll over a stripping knife which removes the insulation from an area over a tinning bath. A dipping mechanism immerses the wire in the bath for a set time and the wire is then passed to a cutting knife where the tin-plated portion is cut. The areas to be tinned are kept under a set grid-potential.
Patent DE-2052129-A1 (DE)
Title: Pig iron desulphuriser contng lime, fluorides - and sodium cpds
IPC: C21C7/064
Filed: 1970-10-23
Abstract: Granular sintered desulphuriser for pig iron for use outside furnaces is prepared by mixing (a) 100 pbw. CaO or equiv. amount CaCO3 and/or Ca(OH)2, (b) up to 30 pbw. Ca-, Na-, Mg- or Ba fluoride and/or Na2SiF6 and/or (C Na as Na2CO3, NaOH or Na2O corresponding to up to 40 pbw Na2CO3, where sum of (b) and/or (c) contents is 3-50 pbw. sintering, pref. at 800-1600 degrees C, and comminuting sinter material, pref. to 4 mm grain size. Pref. desulphuriser contains 100 pts. CaO and 3-3C pbw. CaF2, NaF, MgF2 and/or BaF2 and grain size of comminuted sinter material is 3 mm max, and 3-40 pbw (c) per 100 pts. (a), and pref. it contains one each of (b) and (c).
Patent DE-2052920-A1 (DE)
Title: Albumen curds producer - with thermostat channels and heating jackets to control consistency
IPC: A01J25/00
Filed: 1970-10-28
Abstract: Curds containing albumen are produced in a milk fermenter with albumen destabiliser and bacteria culture feed and passed to a coagulator with heating jacket. Channels running parallel inside the coagulator are elliptical and have straight line generatrices in the main axis of the ellipse running parallel in the channels. The channel entries lie in a thermostat chamber which can be cooled with water to adjust the entry temperature. Height to width in the channels should be 1:3 to 1:12. Each channel can be heated by hot water to ensure uniform consistency of the product. Flow is balanced out by means of the channel design, as well as uniform temperature effects and thus the consistency of the curd product.
Patent DE-2057490-A1 (DE)
Title: Salicylcholine - used for treating rheumatism
Inventor: PILGER EBERHARD DR DIPL-CHEM
IPC: C07C69/88
Filed: 1970-11-23
Abstract: Title cpd., of formula (I): is esp. suitable for treating rheumatism. It is prepd. by reacting ClCH2CH2N(CH3)3. Cl circled negative with 2 molar proportions of sodium salicylate and reacting the resulting salicylate salt with HCl.
Patent DE-2065677-A1 (DE)
Title: Slitting opening and rolling up knitted tub - ular fabric for garments
Inventor: ARONOFF EDWARD ISRAEL
IPC: B65H18/20
Filed: 1970-10-17
Abstract: Slitting, opening and rolling up knitted tubular fabric for garments. Flatten tube has two fold edges, and is horizontally supported on a flat surface, across which it is advanced. One fold edge is cut. A stretching frame projects inward from the cut edge downstream of the cutter and contacts the inner opposite fold edge opposite the cutter, to retain transverse tension on the fabric as it is being cut. Apparatus is described.
Patent DE-2110365-A1 (DE)
Title: Hardening plastic cable coating - without long suspended loop after coating point
Inventor: WERWITZKE LOTHAR
IPC: B29C48/00
Filed: 1971-03-04
Abstract: An apparatus for continuously vulcanising, cross-linking or cooling cables etc. after coating with natural or synthetic rubber of plastics has the cable freely suspended, after coating, in a catenary, opt. followed by a straight line portion; a raised point is incorporated in the freely suspended length of catenary and straight line, pref. at the junction between catenary and straight line.
Patent DE-2138139-A1 (DE)
Title: Slow-release trace element composns for plants - by reacting basic metal cpds with montan wax or resin
IPC: C05D9/02
Filed: 1971-07-30
Abstract: Trace-element contg. agents for promoting plant-growth, which may contain herbicides, fertilizers, pesticides and siccatives as additives, are produced by reacting montan wax or resin with metal carbonates, oxides or hydroxides in the molten state at 120-200 degrees C (pref. 160-180 degrees C), and opt. mixing with dispersing agents, surface-active substances and/or slate flour or kaolin. Cheaper to produce than complexes of trace metals with e.g. o-hydroxyphenylacetic acid or ethylenediamine, and are better tolerated by plants.
Patent DE-2214301-A1 (DE)
Title: Wallpaper - with high polymer poly vinyl acetate adhesive agent prebonded to it during mfr
Inventor: STRAUVEN KURT
IPC: C09J7/35
Filed: 1972-03-24
Abstract: The adhesive agent is bonded to the back of the wallpaper during mfr using heat and pressure and then stabilised and dried in the same work process below freezing temp. after the necessary colloidal stage. When applied to the wall hot air is applied to the paper softening the adhesive and after pressing onto the wall a flow of cold air applied to fix and set the adhesive. Pref. flame resistant fillers ie. asbestos fibres and/or fire clay powder are dispersed into it.
Patent DE-2226354-A1 (DE)
Title: Amylolytic enzymes sepn - from aspergillus awamori cultures, by sorption on diethylamino ethylcellulose and elution with phosphate
Inventor: DURMISCHIDSE SERGEJ WASILJEWIT
IPC: C12N9/10
Filed: 1972-05-30
Abstract: Glucoamylase, transglucosilase and alpha-amylase are separated from an Aspergillus awamori culture biomass by filtration, dialysis, sorption on diethylaminoethylcellulose and elution with phosphate buffer. The culture medium comprises (g/l). starch 40-80, NaNO3 7-15, MgSO4 0.4-1.5, KH2PO4 0.2-1.2, KCl 0.5, FeSO4, 0.001-0.08, Mg(NO3)2 0.2-0.8, Mg(H2PO4)2 0.1-0.7 and 10% malt extract 10 vol%. Transglucosilase and other proteins are eluted with 0.03-0.05 M phosphate buffer at pH 6.5-7.5, glucoamylase (I) with 0.06-0.09 N buffer at pH 6.5-7.5, glucoamylase (II) with alpha-amylase with 0.1-0.12 M buffer at pH 6.5-7.5. Glucoamylase free of transglucosilase is obtd. esp. useful in dextrose prodn. and in treatment of liver sugar diseases. The pure alpha-amylase obtd. is esp. useful in medicine.
Patent DE-2253664-A1 (DE)
Title: Semi expanded plastic laminated panel - adhered to wood sheets eg plywood
Inventor: FOSSATI VALENTINO
IPC: B29C44/56
Filed: 1972-11-02
Abstract: A number of expanded plastic sheets are fed through rollers which supply adhesive to one or both sides of the sheets, sheets of wood are then lightly pressed onto the plastic sheets and then a further plastic sheet interposed between the sandwiches forming a block of unlimited size of alternate wood and plastic sheets. The bonded block can then be heat or cold pressed and cut cross-sectionally through to form the required panels.
Patent DE-2306095-A1 (DE)
Title: Tilting arrangement for casting ladles and tundishes - used with weight monitoring device
Inventor: BOLLIG GEORG DIPL ING
IPC: B22D41/13
Filed: 1973-02-08
Abstract: The influence of the force necessary to tilt and balance a ladle or tundish on the readings of the weighing device is avoided by arranging for the direction of this force from a reaction point outside the weighing system to be at right angles to the tilting motion. In a pref. embodiment, this is provided by tilting drives in the form of piston-cylinders acting on trunnions supported in a U-shaped frame carrying the casting vessel. The arrangement is esp. useful for tundishes in continuous casting.
Patent DE-2328343-A1 (DE)
Title: Flame-resistive phosphorus-contg. polyesters - contg. heteroatoms, pref. sulphur and/or oxygen, in modifying gp
Inventor: BOLLERT ULRICH DIPL CHEM DR
IPC: C07F9/30
Filed: 1973-06-04
Abstract: In parent patent, permanently flame-resistive filaments and fibres consist of synthetic linear polyesters from dicarboxylic acid and diol components and P-contng. chain members, making up 5-15 mol. % of acid component of polyester, and having formula -O-PR1 (left arrow O)-R-PR2(left arrow O)-O- (I), (where R is satd. open-chain or cyclic alkylene, arylene or aralkylene, and R1 and R2 are opt. same 1-6C alkyl, aryl or aralkyl gps.). In present modification, R, R1 and/or R2 in (I) and contain >=1 heteroatoms, pref. O and S. Heteroatoms are present pref. only in gp. R, more pref. as members of chain. Uses include textiles, e.g. tarpaulins, carpets, curtains.
Patent DE-2334608-A1 (DE)
Title: O-Alkyl-O-phenyl-thionophosphonates prepn - by re-esterification of O,O-diphenyl-thionophosphonates
Inventor: BUCK WOLFGANG DR
IPC: C07F9/40
Filed: 1973-07-07
Abstract: O-Alkyl-O-phenyl-thionophosphonates of formula (I) (where R1 is opt. chloro-substd. lower alkyl or opt. halo- or lower alkyl-substd. phenyl; R2 is lower alkyl; X, Y and Z are H, Cl. Br,I, alkyl or NO2; Z can also be CN, acetyl or -S(O)nR3; R3 is lower alkyl; and n = 0-2) are prepd. by reesterification of O,O-diphenyl-thionophosphonates of formula (II) with an alcohol of formula R2OH in the presence of a weak base, prf. dry NH3 as catalyst. (I) are pesticides. Although with weak bases the re-esterification is somewhat slower than with alcoholates, the reaction is more selective and (I) are obtd. in higher yield and better purity. In contrast to tert. amine catalysts, quaternisation prods. are not formed.
Patent DE-2336510-A1 (DE)
Title: Two wheeled fire fighting trolley - with high pressure water cannon on swivel fitting bolted to trolley
Inventor: SCHUETT MANFRED
IPC: B60P3/30
Filed: 1973-07-18
Abstract: A two wheeled trailer is fitted with parking brake and adjustable struts to brace the trailer onto the ground. A plinth is bolted to the trailer by its four splayed legs and carries the swivel mounting for a high pressure water canon. The canon is either operated manually or preset and left near the fire where the heat is too great for long exposures of personnel. Searchlights can be fitted to the canon for added versatility. The brakes are mechanically rod operated by a hand lever on the towing bar.
Patent DE-2341333-A1 (DE)
Title: P.T.F.E. fibre reinforced plastics bearing - having fibres woven to give undulating exposed portion and plastics impregnated
Inventor: SHOBERT SAMUEL MERLE
IPC: F16C33/20
Filed: 1973-08-16
Abstract: In mfr of plastic b earings a card of fluorocarbon resin fibre is woven into a pattern in which the strands are undulated so as to have spaced apart length portions exposed at the surface, a plurality of cords are woven into a fabric and the fabric is impregnated with liq. plastics which is not chemically or adhesively bondable to the fibres are thus secured in posn. by being interlocked in the cords and the plastic impregnating the fabric. Diluent fibres, e.g. of cotton are thus not required.