baber/WOPTO huggingface dataset:
Patent EP-1064070-B1 (EP)
Inventor: GEAUGEY VALERIE
IPC: B01D63/08
Filed: 1999-01-19
Granted: 2003-01-02
Abstract: An apparatus for the separation of a solid/liquid suspension by filtration includes a tank filled with a suspension to be treated. At least one cavitied plate is located in the tank and has at least one internal cavity. The plate is immersed in the suspension to be treated. The plate is inclined with respect to the vertical and only a lower inclined face of the plate is covered with a filter medium, the upper face being solid. The compartment of the cavitied plate communicates with a conduit which collects filtered suspension. Gas flushing pipes are positioned below the plate for emitting gas bubbles that pass across the filter medium and remove material clinging thereto.
Patent EP-1062258-B1 (EP)
Inventor: CHISHOLM MICHAEL STEPHEN
IPC: C09D4/02
Filed: 1999-03-12
Granted: 2003-12-03
Abstract: A method of preparing a branched polymer comprising the steps of mixing together a monofunctional vinylic monomer with from 0.3-100 % w/w of a polyfunctional vinylic monomer and from 0.0001-50% w/w of a chain transfer agent and thereafter reacting said mixture to form a polymer. The resulting soluble branched polymers are useful as components of surface coatings and inks or as moulding resins.
Patent EP-1064632-B1 (EP)
Title: Electronic sensor for identifying objects to prevent them from being lost, stolen or moved
Inventor: ENEA BRUNO
IPC: G06K17/00
Filed: 1999-03-12
Granted: 2003-07-16
Abstract: The invention concerns an electronic sensor in particular for detecting theft or loss of objects comprising a central electronic unit (1) exchanging coded data by radio frequency with at least a transponder (11), associated with an object to be monitored to verify its presence in a located volume (12) and emitting an alarm (13) when said transponder (11) is no longer present in the monitored volume (12). The invention is characterised in that said transponder (11) is automatically set in stand-by mode outside the transponder active phases (11) and the central unit (1) selectively corresponds with said transponder.
Patent EP-1082384-B1 (EP)
Inventor: GLUECK GUISCARD
IPC: B29C44/34
Filed: 1999-03-19
Granted: 2003-10-08
Abstract: The invention relates to a process for the preparation of expanded polystyrene particles in which polystyrene beads containing water as the sole expanding agent are expanded. The process involves the following stages:A) the polystyrene beads are pre-expanded at temperatures above 100° C.,B) the pre-expanded particles are dried in dry air at temperatures between 20° and 95° C. over a period of from 1 to 10 hours,C) the dried expanded particles are further expanded with steam at temperatures ranging from 100° to 140° C., andD) the stages b and c are repeated as often as is necessary to achieve the desired bulk density.
Patent EP-1068241-B1 (EP)
Inventor: IDUSOGIE ESOHE EKINADUESE
IPC: C07K19/00
Filed: 1999-03-31
Granted: 2007-10-10
Abstract: A variant of a polypetide comprising a human IgG Fc region is described, which variant comprises an amino acid substitution at one or more of amino acid positions 270, 322, 326, 327, 329, 331, 333 or 334 of the human IgG Fc region. Such variants display altered effector function. For example, C1q binding and/or complement dependent cytotoxicity (CDC) activity may be altered in the variant polypeptide. The application also discloses a variant of a parent polypeptide comprising a human IgG Fc region, which variant has a better binding affinity for human C1q than the parent polypeptide.
Patent EP-1071369-B1 (EP)
Inventor: FOXLIN ERIC M
IPC: A61B5/11
Filed: 1999-04-08
Granted: 2008-02-20
Abstract: Tracking a motion of a body by obtaining two types of measurements associated with the motion of the body, one of the types including acoustic measurement. An estimate of either an orientation or a position of the body is updated based on one of the two types of measurement, for example based on inertial measurement. The estimate is then updated based on the other of the two types of measurements, for example based on acoustic ranging. The invention also features determining range measurement to selected reference devices that are fixed in the environment of the body.
Patent EP-1090242-B1 (EP)
Inventor: PROCIDA INGER-MARGRETE
IPC: F16L11/08
Filed: 1999-06-21
Granted: 2002-10-30
Abstract: The invention relates to a flexible, unbonded continuous high-pressure pipe comprised of several layers comprising at least one inner barrier layer, at least one tubular, liquid-permeable reinforcement layer surrounding the barrier layer, and a tubular outer sheath surrounding the tubular reinforcement layer(s), wherein at least one liquid-impervious barrier layer is provided by continuous extrusion of a single-phase aliphatic polyketone polymer, and a method for the production thereof.
Patent EP-1095162-B1 (EP)
Inventor: BLAKESLEY ROBERT W
IPC: C12Q1/68
Filed: 1999-07-16
Granted: 2005-11-30
Abstract: The invention relates to a solid medium or matrix for storage of nucleic acid molecules (e.g. RNA and/or DNA), particularly vectors and especially plasmids, comprising a solid matrix preferably having a compound or composition which protects against degradation of nucleic acids incorporated into or absorbed on the matrix. The invention also relates to methods for storage or isolation/purification of nucleic acids using this solid medium, and in situ use of the stored or isolated/purified nucleic acids.
Patent EP-1087901-B1 (EP)
Inventor: OHLHAUSER STEFAN
IPC: B65H26/02
Filed: 1999-06-10
Granted: 2002-08-21
Abstract: Selon l'invention, un dispositif servant à mesurer (8, 9) et/ou réguler la tension d'une bande de matériau (1) au moyen d'un cylindre de mesure (4) est utilisé pour la détection d'une fissure de la bande.
Patent EP-1117304-B1 (EP)
Inventor: ONG MEI HORNG
IPC: A23L21/10
Filed: 1999-09-17
Granted: 2002-07-10
Abstract: A hydrocolloid confectionery product that includes, as a gelling agent, comprising iota-carrageenan or a mixture of carrageenans containing more than 50% iota-carrageenan in an amount sufficient to provide characteristics and properties of the product that are essentially the same as in hydrocolloid confectionery products that include gelatin as a gelling agent. Also, a process for making the hydrocolloid confectionery.
Patent EP-1034196-B1 (EP)
Inventor: LIPIAN JOHN-HENRY
IPC: C08F4/80
Filed: 1999-10-05
Granted: 2005-01-12
Abstract: Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:wherein [(R')zM(L')x(L'')y] is a cation complex where M represents a Group 10 transition metal; R' represents an anionic hydrocarbyl containing ligand; L' represents a Group 15 neutral electron donor ligand; L'' represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.
Patent EP-1137705-B1 (EP)
Inventor: BIRNBRICH PAUL
IPC: C08K3/10
Filed: 1999-10-30
Granted: 2004-09-22
Abstract: Methods of preparing polyolefin-based molded materials with improved adhesive/coating compatibility by incorporating saturated fatty acid amides and transition metal compounds in the polyolefin-based material prior to molding are described. Methods of producing coated or bonded polyolefin-based, molded materials are also described.
Patent EP-1127423-B1 (EP)
Inventor: CREIGH JOHN L
IPC: H04L1/24
Filed: 1999-11-02
Granted: 2005-11-23
Abstract: The present invention provides a method for determining nonlinear distortion of a transmitter. A test symbol sequence is transmitted from the transmitter under test as an analog output signal. The analog output signal is sampled to produce a first sequence which represents the test symbol sequence as distorted by a linear distortion sequence and a nonlinear distortion sequence. The test symbol sequence is filtered via an adaptive filter to produce a second sequence such that the second sequence is approximately equal to the test symbol sequence as distorted by the linear distortion sequence. The second sequence is subtracted from the first sequence to produce an output sequence substantially equal to the nonlinear distortion sequence.
Patent IE-85350-B1 (IE)
Title: Human notch and delta, binding domains in toporythmic¹proteins, and methods based thereon
Inventor: ARTAVANIS-TSAKONAS SPYRIDON
IPC: C07K14/485
Filed: 1992-07-01
Abstract: The present invention provides methods for the manipulation of cell differentiation comprising contacting a cell with an amount of a toporythmic protein, or with a fragment or derivative of a first toporythmic protein which fragment or derivative being able to bind to a second toporythmic protein, or with an amount of an antibody or fragment thereof containing the idiotype thereof which binds to a toporythmic protein, said toporythmic protein being effective to manipulate the differentiation of the contacted cell.
Patent IE-86348-B1 (IE)
Title: Roll-up door assembly, blow molded panel therefore and method of making same
Inventor: ROBERTS GARY
IPC: E06B9/08
Filed: 2009-04-14
Abstract: The roll-up door has a plurality of panels and a plurality of roller assemblies mounted to ends of the panels for mounting the panels in channels. At least some of the panels are formed of blow-moulded thermoplastic material and have a relatively flat outside face and an inside face including ribs that extend longitudinally and transversely on the panel. A reinforced panel of thermoplastic material is made by blow molding a panel with a thermoplastic material to form a relatively flat outside face and a ribbed inside face, and with elongated channels along upper and lower walls thereof. The panel is trimmed while it is still warm to open the channels at one end. While the panel is still warm, reinforcing members are inserted into the elongated channels. The panels are cooled to shrink the channels onto the reinforcing members.
Patent IT-1278546-B1 (IT)
Title: System for adjusting the end play of the shaft for electric motors
Inventor: BACCHIOCCHI ALBERTO
IPC: H02K/
Filed: 1994-11-11
Granted: 1997-11-24
Abstract: This invention concerns a system for adjusting the end play of electric motor shafts. The system according to the invention is based on the use of an adjustment screw, coaxial with the shaft and screwed to the centre of the U-bolt supporting the stator pack not traversed by the shaft, along which there must be a stopper element for stopping its stroke in the axial direction corresponding to the feed direction of the screw itself when it is being screwed in. <IMAGE>
Patent IT-1266504-B1 (IT)
Title: Electronic phase comparator for safety purposes, for use as an alternating current track relay
Inventor: CAPOROSSI ROBERTO MARIA
IPC: H01H/
Filed: 1993-10-20
Granted: 1996-12-30
Abstract: The electronic device to which the present invention relates is an innovative version of the disc-type alternating current relay used widely at present in railway installations. Unlike the disc relay, it requires no maintenance, is more safe and reliable, and can be substituted electrically for the disc relay. The basic characteristic of the device is that the safety functions can be provided in a comparator in which the local voltage is compared with the field voltage modulated at high frequency, and that a transformer is used, also at high frequency, to derive the output signal which is proportional to the input voltage levels and inversely proportional to their phase difference. <IMAGE>
Patent IT-1309343-B1 (IT)
Inventor: DE ROSSI MICHELE
IPC: G01R31/28
Filed: 1999-02-09
Granted: 2002-01-22
Abstract: A frame for testing a board having a printed circuit on at least one side thereof and provided with reference centering holes, including a plurality of test plates made of insulating material, for spacing and fixing means for said plates, and a plurality of testing needles or pins comprising at least one pin which has one eccentric end (2) arranged to engage a board to be tested and to be inserted in a seat (21) provided in at least one of said plates according to a preset angular orientation of its eccentricity, thereby inducing a corresponding rotation and translatory motion in the board to be tested in order to compensate for manufacturing misalignments of said printed circuit with respect to reference centering holes.
Patent JP-2939464-B1 (JP)
Title: 雨樋の融雪装置
IPC: E04D13/076
Filed: 1998-05-14
Granted: 1999-08-25
Abstract: 【要約】
【課題】  本発明の目的とするところは、地熱や室内で 暖められた空気を巧みに利用して雨樋に堆積した雪を速 やかに効率よく解かすと共に、屋根からの融雪水を円滑 に排水して、屋根の腐朽や雨漏りを防ぐことができる雨 樋の融雪装置を提供することにある。
【解決手段】  雨樋本体１における軒先側上端縁の長手 方向に沿って、雨樋本体１の軒先側の側部から底部にか けて覆い隠す覆板２を、雨樋本体１と空間を保って連成 し、該空間が開口する雨樋本体１の屋根側を屋根の鼻隠 面１０に固定手段１９で固定して、雨樋本体１と覆板２ と鼻隠面１０とによって仕切られる空間部７を形成し、 前記空間部７に通じる温風供給口１１を鼻隠面１０の長 手方向に沿って設け、さらに雨樋本体１の長手方向に沿 う上端縁近傍には、空間部７に連通し且つ雨樋本体１の 雨水路５内に温風を送り込む噴出孔６を設けてあること を特徴とする。
Patent JP-3126967-B1 (JP)
Title: プロセスカートリッジの再生産方法
IPC: G03G21/10
Filed: 1999-10-29
Granted: 2001-01-22
Abstract: 【要約】
【課題】  トナーシールを引きぬいて、使用済のプロセ スカートリッジにトナーシールを用いることなく、トナ ーを充填封止したプロセスカートリッジの再生産が目的 である。
【解決手段】  再生産工程中に、現像ブレード１０ｅの 板金１０ｅ２部分と前記トナー現像容器１２とにまたが って、トナーが漏れ出るのを防止するためのシール４９ を貼付するシール貼付工程を有する。これによって、板 金１０ｅ２とトナー現像容器１２間が簡単に密封され る。物流によるトナー漏れ防止に寄与する。
Patent JP-3164803-B1 (JP)
Title: 同軸コンセント
IPC: H01R103/00
Filed: 1999-12-27
Granted: 2001-05-14
Abstract: 【要約】
【目的】  同軸ケーブルに接続したプラグを特性インピ ーダンスの整合を取りつつ接続する同軸コンセントを提 供する。
【構成】  同軸ケーブルに取り付けられた締着手段を備 えるプラグを接続するための同軸コンセント２０であ り、同軸ケーブルの中心導体と略同径（≒φ１）の導体 ピン１２を中心軸に挿通した前記同軸ケーブルの絶縁物 ５と略同径（≒φ２）の円柱状の絶縁体１３を、内径φ ２が同軸ケーブルの絶縁物５の外径と略等しく且つ接続 側の外径φ３がプラグの接続部分の凹部の内径と略等し い円筒状の導体金属の接続部１５を備える同軸コンセン ト本体１１内に、嵌装固定した構成であり、さらに導体 ピン１２の外周に突起部１２ｂを設け、同軸コンセント 本体１１の機器側端面に第２の絶縁体１９をその中心軸 に導体ピン１２の機器接続側を挿通しつつ突起部１２ｂ を絶縁体１３との間に拘持するように周縁１６をカシメ て配設固定し、さらに取り付け穴１８を有する鍔１７を 設けた構造である。
Patent NO-312260-B1 (NO)
Inventor: KASIN SIGVART
IPC: F23J15/06
Filed: 2000-03-24
Abstract: This invention relates to a method and device for converting energy by combustion of solid fuel, especially incineration of bio-organic fuels and municipal solid waste to produce heat energy and which operates with very low levels of NOx, CO and fly ash, in which that the oxygen flow in the first and second combustion chambers in at least one separate zone and by sealing off the entire combustion chambers in order to eliminate penetration of false air into the chambers, the temperatures in the first and second combustion chamber are strictly controlled, in addition to the regulation of the oxygen flow, by admixing a regulated amount of recycled flue gas with the fresh air which is being led into each of the chambers in each of the at least one separate zones, and both the recycled flue gas and fresh combustion gases are filtered in unburned solid waste in the first combustion chamber by sending the unburned solid waste and the gases in a counter-flow before entering the gases into the second combustion chamber.
Patent NO-332038-B1 (NO)
Title: Beskyttelse, gjenoppbygging og styrking av erytropoietinresponsive celler, vev og organer.
Inventor: CERAMI ANTHONY
IPC: A61P9/00
Filed: 2003-06-24
Abstract: Fremgangsmåter og sammensetninger er tilveiebrakt for beskyttelse eller styrking av erytropoietinresponsiv celle, vev, organ eller kroppsdelsfunksjon eller viabilitet in vivo, in situ eller ex vivo hos pattedyr, som inkluderer mennesker, ved systemisk eller lokal administrasjon av en erytropoietinreseptoraktivitetsmodulator, slik som et erytropoietin eller et modifisert erytropoietin.
Patent NO-321097-B1 (NO)
Inventor: LUND ARE
IPC: C02F1/00
Filed: 2003-06-27
Abstract: The present invention concerns a method for purification of contaminated water through hydrate formation and separation of hydrates from contaminated water enriched with contaminants, by supplying hydrate particles to the water during hydrate formation. The present invention also concerns a device for purification of water by using a method according to the invention, and water produced according to the invention. By using the process principles according to the present invention, all types of water can be purified for consumption or safe discharge, or desired resources can be recovered, and air can be purified if it first is bubbled through the water which then is purified by a method according to the invention.
Patent NO-327202-B1 (NO)
Inventor: BARTH CHRISTIAN
IPC: B65D6/18
Filed: 2003-10-31
Abstract: The invention relates to a container, especially a reusable container, comprising collapsible lateral walls ( 1, 3 ). The snap-in closure in the corners is configured by a respective pressure lever ( 4 ) that can be pressed inward and that interacts with a locating lug ( 12 ) that is configured on the lateral wall that is adjacent, arranged diagonally across thereto.
Patent NO-332140-B1 (NO)
Title: Fremgangsmate og anordning for prosessering av blokkfryste ramaterialer til visse typer "sno"
Inventor: JONSSON SVEINBJORN
IPC: A23L17/10
Filed: 2004-12-17
Abstract: Oppfinnelsen vedrører en fremgangsmåte og en anordning for endring av frosne råmaterialer til et produkt, som er som en bestemt råmaterialsnø med det formål å være i stand til å arbeide med deres kvaliteter, for eksempel ved å blande dem med andre materialer, og håndtere dem på forskjellige måter uten å tine dem. Fremgangsmåten utføres med en riveanordning eller riveapparat, som kan drives ved den vanlige lagringstemperatur for frosne produkter, og materialene, snøen vil under slik håndtering, være enkel for videre bearbeiding under vanlige fryselagringstemperaturer, og tillate kontroll av faktorer slik som størrelsen av partiklene, blandingsforholdene, pressing, binding og størrelse/format slik at de vil kunne tjene diverse formål, alene eller blant andre materialer uten at de utsettes for umiddelbar ødeleggelse. Fremgangsmåten kan være anvendbar i agnindustrien og i fiskeoppdrettsforingsindustrien så vel som at fremgangsmåten tilveiebringer store muligheter ved behandling av frosne matvarer.
Patent NO-336938-B1 (NO)
Title: Farmasøytisk sammensetning av vedvarende frigjøringsformulering av amfetaminer eller amfetaminsalter
Inventor: COUCH RICHARD A
IPC: A61K31/205
Filed: 2005-04-22
Abstract: Et farmasøytisk preparat som omfatter en daglig formulering med vedvarende frigivelse av minst ett amfetaminsalt som tilveiebringer gjennomsnittlige plasmakonsentrasjonsprofilaspekter hos menneskelige ADHD-pasienter som i all vesentlighet er de samme som det som er tilveiebrakt med ADDERALL XR-typen av pulsatile formuleringer.
Patent NO-342574-B1 (NO)
Title: Perforeringssystem med lite eller uten bruddstykker
Inventor: N N MIDLERTIDIG
IPC: E21B43/117
Filed: 2006-10-27
Abstract: En rettet sprengladningsenhet for bruk i et perforeringsapparat som videre omfatter en sprengladningsholder (16) og perforeringsapparathus (10). Sprengladningsholderen innkapsler hovedsakelig den lukkede del av den rettede sprengladning (18) og strekker seg fra den rettede sprengladningens ytre omkrets til den indre diameter av det tilhørende perforeringsapparathus. Den rettede ladningens innkapsling minsker i vesentlig grad innføringen av rester i borehullet som skyldes detonering av de rettede sprengladninger i perforeringsapparathuset. Sprengladningsholderen eller - bæreren (16) kan innbefatte en flerhet av rettede sprengladninger.
Patent NO-343349-B1 (NO)
Title: Porøse kompositter inneholdende hydrokarbonløselige brønnbehandlingsmidler og fremgangsmåter for anvendelse derav.
Inventor: BECKER HAROLD L
IPC: C09K8/92
Filed: 2007-01-24
Abstract: Kompositter inneholdende et hydrokarbonoppløselig brønnbehandlingsmiddel kan tilføres en brønn ved bruk av et porøst partikkelformet materiale. Slike brønnbehandlingsmidler kan f.eks. inhibere dannelsen av parafiner, salter, gasshydrater, asfaltener og/eller skadelige prosesser som emulgering (både vann i olje og olje i vann). Videre inkluderer andre brønnbehandlingsmidler skummidler, oksygenfjerningsmidler, biocider og surfaktanter så vel som andre midler hvori sakte frigivelse inn i produksjonsbrønnen er ønsket.
Patent NO-341904-B1 (NO)
Title: Farmasøytisk kombinasjon for simultan, separat eller sekvensiell administrasjon
Inventor: NEGRIN YASSER PERERA
IPC: A61K45/06
Filed: 2008-09-29
Abstract: Foreliggende oppfinnelse angår en farmasøytisk kombinasjon som inneholder en Caseinkinase 2 (CK2) peptidinhibitor (navngitt P15) sammen med standard kjemoterapeutiske legemidler anvendt ved kreftbehandling og som administreres sammen, separat eller sekvensielt. De kjemoterapeutiske legemidlene inkluderer cisplatin, taxol, alkaloider fra Vinca, 5-fluoruracil, doxorubicin, cyklofosfamid, etoposid, mitomicin C, imatinib, iressa og velcade (vortezomib). Synergien mellom P15-peptidet og antikreftlegemidlene gir en effektiv konsentrasjon av hvert cytostatisk legemiddel i kombinasjonen som er fra 10 til 100 ganger lavere enn den for hvert cytostatisk legemiddel alene. Den farmasøytiske kombinasjonen beskrevet ifølge oppfinnelsen fremviser lav toksisitet sammenlignet med den som rapporteres fra antikreftterapeutiske midler og derfor representerer den en viktig fordel ved dens anvendelse ved kreftbehandling. Videre fører den sekvensielle administrasjonen av denne farmasøytiske kombinasjonen gjennom forhåndsbehandling med P15-peptidet til en kjemosensibilisering av refraktære tumorer ovenfor antikreftterapetutiske midler.
Patent NO-342786-B1 (NO)
Title: Ventilventilert redundant spindeltetningssystem
Inventor: HUNTER RICK C
IPC: F16K41/08
Filed: 2012-12-03
Abstract: En ventil innbefatter en spindeltetningssammenstilling som hindrer fluidstrøm i en første retning og ventilerer i en andre retning motsatt den første retning. Sammenstillingen innbefatter en pakningssammenstilling posisjonert inne i en ventilspindelåpning i et ventilhus av ventilen for å tette en ventilspindel mot ventilhuset. Pakningssammenstillingen innbefatter en første tetning og en andre tetning som hindrer passasje av fluid fra et hushulrom i ventilhuset til utenfor ventilhuset langs ventilspindelen samtidig med ventilering av fluid fra utenfor ventilhuset til hushulrommet langs ventilspindelen. Pakningssammenstillingen isolerer den første tetning og den andre tetning, slik at en last påført på den første tetningsring ikke overføres til den andre tetningsring.
Patent NO-341992-B1 (NO)
Title: Modulelement til bruk i en bygning
Inventor: ELLINGSEN PER GEORG
IPC: E06B1/18
Filed: 2016-09-07
Abstract: Det beskrives et modulelement (1) og en framgangsmåte for å tildanne et parti aven vegg, et tak eller et gulv i en bygning, hvor modulelementet (1) omfatter: et rammeverk (3) som omfatter sidepartier (5) avgrenset av hjømepartier (7); et plateformet legeme (9) innrettet for løsgjørbar innfesting til rammeverket(3); og et festemiddel (11,13) for å tilveiebringe nevnte løsgjørbare innfesting, idet det plateformede legemet (9) har en framside og en bakside. Rammeverkets (3) er forsynt med i det minste en åpning (71, 73, 75). Festemidlet(11,13) omfatteren låseanordning (11) anordnet på det plateformede legemets (9) bakside, idet låseanordningen (11) er innrettet til å kunne fjernstyres mellom en låsende stilling og en ikke-låsende stilling.
Patent PL-144856-B1 (PL)
Title: Method of and apparatus for manufacturing modular cast iron pipes of controllable structure
IPC: B22D11/00
Filed: 1985-12-27
Abstract: The invention concerns a method and apparatus for thermally treating cast-iron pipes formed in a continuous casting die. The pipe or tube undergoes tempering by passing through a vat which is located downstream from the continuous casting die. The vat contains a continuously cooled bath of fluidized sand or the like which lowers the temperature of the tube in a uniform manner and makes it possible to obtain a very precise and homogeneous tube structure.