baber/WOPTO huggingface dataset:
Patent NO-891964-L (NO)
Inventor: HEGGEN HANS
IPC: E06C7/04
Filed: 1989-05-16
Abstract: An extension ladder comprising at least two separate single ladders (10, 20, 30, 40) which in their starting position lie upon one another and are slidable in relation to one another is shown. One of the two adjacent ladders comprises guide means for the other. Between each adjacent single ladder there is arranged a line pull system comprising line guides (1, 1'; 2, 2'; 3, 3'; 4) over which the line (7) runs and changes direction. Such a line pull system is independently arranged between two adjacent single ladders, so that a four-part extension ladder has three independent line pull systems.
Patent NO-892029-L (NO)
Title: Fremgangsmaate ved spesifikk genetisk manipulering av mikroorganisme.
Inventor: SCHURTER WALTER
IPC: A01N63/00
Filed: 1989-05-19
Abstract: Fremgangsmåte for direkte og målrettet genetisk manipulasjon av Baci l lus thuri ngiens i s samt B. cereus ved hjelp av den rekombinante DNA- teknologi. Konstruksjon av plasmider og "shuttle"-vektorer samt de transformerte B-thuringiensis-stammer. 20.05.88, CH, 1946/88, 02.09.88, CH, 3279/88, 20.01.89, CH, 180/89. Fremgangsmåte ved direkte kloning, ekspresjon og identifisering av gener i B.thuri ngiensi s samt B. cereus.
Patent NO-893546-L (NO)
Inventor: DANILEWICZ JOHN CHRISTOPHER
IPC: C07C235/82
Filed: 1989-09-04
Abstract: Compounds of the formula: <CHEM> Wherein A completes a 5 or 6 membered carbocyclic ring which may be saturated or monounsaturated; R<1> is H or (C1-C4)alkyl; R and R<4> are H, (C1-C6)alkyl, C3-C7 cycloalkyl, benzyl, or an alternative biolabile ester-forming group; Y is either a direct bond or an alkylene group of from 1 to 6 carbon atoms; R<2> is H, aryl, heterocyclyl, R<6>CONR<5>-, R<7>NR<5>CO-, R<7>NR<5>SO2- or R<8>SO2NR<5>-, with the proviso that Y is not a direct bond when R<2> is H, aryl or heterocyclyl; wherein R<5> is H, (C1-C6)alkyl or aryl(C1-C6)alkyl; R<6> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl, heterocyclyl(C1-C6)alkyl or a group of the formula R<9>R<1><0>R<1><1>C- wherein R<9> is H, OH, (C1-C6)alkoxy, (C1-C6)alkyl, hydroxy(C1-C6)alkyl, aryl(C1-C6)alkyl, (C2-C6)alkenyl, heterocyclyl, heterocyclyl(C1-C6)alkyl, R<1><2>CONH-, R<1><2>SO2NH- or (R<1><3>)2N-; R<1><0> and R<1><1> are H or (C1-C6)alkyl; or R<1><0> is H and R<1><1> is amino(C1-C6)alkyl, imidazolylmethyl, aryl, aryl(C1-C6)alkyl, aryl(C1-C6)alkoxy(C1-C6)alkoxy, hydroxy(C1-C6)alkyl or methylthio(C1-C6)alkyl; or the two groups R<1><0> and R<1><1> form a 3 to 6 membered carbocyclic ring or a pyrrolidine or piperidine ring which may optionally be substituted by amino, (C2-C4)alkanoyl or aroyl; R<1><2> is (C1-C6)alkyl, (C3-C7)cycloalkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl or heterocyclyl(C1-C6)alkyl; each R<1><3> is H, (C1-C6)alkyl, aryl(C1-C6)alkyl or the two groups R<1><3> form a pyrrolidinyl, piperidino, morpholino, piperazinyl or N-(C1-C4)alkyl-piperazinyl group; R<7> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl, heterocyclyl(C1-C6)alkyl or a group of the formula R<1><0>R<1><1>R<1><4>C- wherein R<1><0> and R<1><1> are as previously defined and R<1><4> is (R<1><3>)2NCO-, R<1><2>OCH2- or R<1><5>OCO, wherein R<1><2> and R<1><3> are as previously defined and R<1><5> is (C1-C6)alkyl, (C3-C7)cycloalkyl or aryl(C1-C6)alkyl; and R<8> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl or heterocyclyl(C1-C6)alkyl;  R<3> is a group of the formula: <CHEM> wherein R<1><6> is H, halo, 4-OH, 4-(C1-C6 alkoxy), 4-(C3-C7 cycloalkoxy) 4-(C2-C6 alkenyloxy), 4-[(C1-C6 alkoxy)carbonyloxy], 4-[(C3-C7 cycloalkoxy)carbonyloxy], or 3-(C1-C4 alkyl)SO2NH-; and R<2><0> is H, C1-C4 alkyl, C1-C4 alkoxy, C2-C6 alkanoyl or halo; or R<3> is a group of the formula: <CHEM> wherein said groups may optionally be substituted in the fused benzene ring by C1-C4 alkyl, C1-C4 alkoxy, OH, halo or CF3; are antihypertensive agents of utility in the treatment of hypertension, heart failure and renal insufficiency.
Patent NO-894772-L (NO)
Inventor: GOEDL FRITZ
IPC: E04D13/17
Filed: 1989-11-29
Abstract: The invention relates to a ventilation carrying (1) for roof-ridge and roof-arris coverings, in particular consisting of plastic material, having air-passage openings (6), having a border region (4) and having a flexible sealing hip (16) which is provided in the border region (4) and fits closely over the surface of roofing elements. In order to prevent, in a simple manner, dirt, moisture and draughts from entering into the interior of the roof and, at the same time, to achieve a good sealing action between the ventilation capping and the roofing elements, the invention provides that the sealing hip (16) comprises a brush. <IMAGE>
Patent NO-900712-L (NO)
Inventor: PORKRISTL ALBERT
IPC: E01B35/12
Filed: 1990-02-14
Abstract: In an apparatus for monitoring the gap between the end faces (3, 4) of rails (1, 2), for example in expansion joints or supporting frameworks, in which the rails (1, 2) are stressed multi-axially, one rail (2) is connected to at least one plate, or to a damping element (6), which extends transversely with respect to the rail longitudinal direction, the axes (8) of measuring sensors (7) being oriented normal to the plates (6) and the rail (2) being supported in a sliding manner in the vicinity of the fixing point for the plates (6) and secured against swivelling out of the direction of movement to be measured. 
<IMAGE>
Patent NO-902415-L (NO)
Title: Vaskemiddelblanding, samt additiv.
Inventor: BRACE ROGER
IPC: D06M11/00
Filed: 1990-05-31
Abstract: Toymykningsleirtyper, vaskemiddelblandinger som omfatter leire og fremgangsmåter for fremstilling av leirtypene. Tøymykningsleirtypene er dioktaedriske 2:l-lags fyllosilikater som omfatter minst 100 ug litium pr. gram leirmineral. Problemer med uheldig leirfarve kan overvinnes.
Patent NO-913968-L (NO)
Inventor: WIRTZ-ODENTHAL BERNHARD
IPC: A47K/
Filed: 1991-10-10
Abstract: The dispenser for sections of a roll incorporates a sliding surface in the form of a dispenser roller (10) with a friction coating (2). The ends of the slide surface have a spiral guide (3) for a slide-piece (6) on which is linked a blade (12). A blade-lever (14) grips a return spring (15) in a link (11) connecting the blade to the slide (6). The back of the blade has a bolt fitting into a release-tie. The tie-piece is pivotally joined to the slide by a stay-bolt (44) and has stop-surface (17,82) forming a block together with the stop (18) on the end (43).
Patent NO-914190-L (NO)
Title: Skillebryter
Inventor: WILBERTZ HERIBERT
IPC: H02H9/04
Filed: 1991-10-25
Abstract: Skillebryter anbrakt i strømbanen som avgrenes mot Jord fra nettlederen. Skillebryteren har en i hver strømbane seg befinnende overspenningsavleder (44 til 47) og et kontaktsted (23), idet det til Jord førende avsnitt av strembanen er parallellkoblet og som primærvikling til en strømomformer (26) ført gjennom dens kjerne. Fra sekundærviklingen til strømomformeren (26) styres et relé (28) for påvirkning av kontaktstedet via en koblingslås (27). Skillebryteren er utformet som en feilstrømbryter av den art som er vanlig tilgjengelig l handelen og overspenningsavlederne er festet på en bærerplate (35), som er anordnet i rommet som opptar strømomformeren (26). På bærerplaten (35) er anbrakt minst en temperatursensor (57a til 57d) i god varme- kontakt med bærerplaten (35), hvilken temperatursensor (57a til 57d) er koblet elektrisk parallelt med en i Skillebryteren seg befinnende testtastkontakt (55), idet temperatursensoren (57a til 57d) bringer Skille- bryteren til å åpnes ved overskridelse av en bestemt temperatur.
Patent NO-914523-L (NO)
Inventor: MISCEVIC MICHEL
IPC: B67C3/20
Filed: 1991-11-19
Abstract: The invention relates to a method for filling drums with mutually inert and immiscible liquids. 
<??>This method consists in positioning the said drum to be filled in such a way that at least one of the openings of the said drum is situated underneath a filling pipe, in introducing this filling pipe in such a way that its end is close to the bottom of the drum, in introducing a predetermined amount Q1 of the least dense liquid, in then introducing an amount Q2 of the densest liquid and in afterwards rinsing the filling pipe with a predetermined amount Q3 of the least dense liquid and in withdrawing the filling pipe. 
<??>This method applies most particularly to the filling of a drum with liquid white phosphorus and water. 
<IMAGE>
Patent NO-914748-L (NO)
Inventor: WENSKE HANNO
IPC: C25B9/17
Filed: 1991-12-03
Abstract: An electrolytic cell for electrolytic processes in which gas is evolved comprises at least one electrode with parallel electrode elements (1). The electrode elements have a thickness (3) up to three times the average diameter of a released bubble and the capillary gap (4) between the electrode elements is such that the gas bubbles move through the electrodes essentially in the direction of the electric field between the reaction surfaces of the anode and the cathode, or the opposite direction.
Patent NO-924107-L (NO)
Inventor: HOLTA OLAV
IPC: B22D39/00
Filed: 1992-10-23
Abstract: Metering device for metal, comprising a pump house (1) submerged in liquid metal in a container (6) with a supply device (4) for gas, an inlet (8,9) for the supply of liquid metal from the container (6) and an outlet pipe (5) designed as a siphon. The outlet end of this pipe is located at the same level as the level of the metal inside the crucible and the inlet end is fitted with a valve (13). It is preferable to use an outlet pipe designed with one part above the level of the metal in the crucible and one part below the level of the metal in the crucible. The pump house metal intake can be in the form of a valve or a riser pipe. It is preferable to use a valve in the form of a loose ball.
Patent NO-931218-L (NO)
Inventor: PEDERSEN LARS SAABY
IPC: D21C9/10
Filed: 1993-03-31
Abstract: PCT No. PCT/DK91/00315 Sec. 371 Date Mar. 3, 1993 Sec. 102(e) Date Mar. 3, 1993 PCT Filed Oct. 17, 1991 PCT Pub. No. WO92/07138 PCT Pub. Date Apr. 30, 1992.Resin can be hydrolyzed enzymatically during the reductive bleaching (e.g. with sodium dithionite) commonly used in pulp manufacture. The enzyme treatment necessitates little or no change of commonly used bleaching conditions.
Patent NO-933829-L (NO)
Inventor: KURAMOTO KIKUZO
IPC: E04D7/00
Filed: 1993-10-25
Abstract: There is disclosed a connecting pin (1) having a body (9) of great strength which will not come out of position when locked and will not foul during insertion and removal. In the connecting pin, a flange (10) for locking is provided on the rear end of a column-like body (9); an elongate hole (11) is formed through the shank part on the forward end side of the body (9); a shaft (12) is inserted in the shank part on the forward end side of the body in a direction intersecting the elongate hole (11); two opposed holes (17) are formed parallel to this shaft; a lock piece (13) is rotatably supported on the aforesaid shaft at a midway point and having a plurality of recesses (16); and in the hole is inserted a positioning member which selectively engages in one of the recesses. <IMAGE>
Patent NO-934638-L (NO)
Title: Ströanordning for bruk på kjöretöy til vinterströing
Inventor: ROSENTIHL PAUL
IPC: E01C19/20
Filed: 1993-12-16
Abstract: Strøanordning for et strøapparat for vinterbruk, som kan settes på en strøbil e.l. Det har et fallrør (18) som i sin arbeidsstilling er rettet skrått nedover og bakover, på hvis nedre ende det er anordnet en strøtallerken (15) og hvilket med sin øvre ende er svingbar om en vertikal svingeakse. Fallrøret kan låses i forskjellige svingeposisjoner og festet ved hjelp av et horisontalt vippelager (36, 37), om hvilket fallrøret (4) sammen med strøtallerken (15) kan vippes fra den nedoverrettete arbeidsstillingen opp i en hvilestilling. Fallrøret (13) er med sin øvre, åpne ende festet til den horisontale stegdelen (30) til en bærebøyle (34) hvis vertikale, oppoverrettete vertikalvegger (31, 32) er forbundet med koaksiale, horisontale vippelager (36, 37) med på begge sider av utløpshodet (3) anordnete vertikale bærelabber (38, 39) til et lageråk (40). Bærelabbene er anordnet symmetrisk og i sideveis avstand fra utløpshodet, idet lageråket (40) har en horisontal åkbjelke (62), som på oversida av utløpshodet (3) ved hjelp av et sentralt anordnet svingelager (66) er svingbart lagret om en vertikal svingeakse (67).
Patent NO-940108-L (NO)
Inventor: MONTI CARLOS ERNESTO ANTONIO
IPC: A61K31/45
Filed: 1994-01-12
Abstract: Substituted N-aminoalkylmethanesulphanilides of the formula (I), their solutions and pharmaceutically tolerable addition salts, their pharmaceutical compositions and their therapeutic use. In the formula (I), Y corresponds to hydrogen, cyano, nitro, amino, acetamide or halogen; n is an integer from 2 to 4, R<1> and R<2>, identically or differently, are alkyl-(C1-C4) or they are connected to one another and to the N atom to form a 1-pyrrolidinyl, 1-piperidinyl, 1-piperazinyl, 4-methyl-1-piperazinyl, 4-ethylpiperazinyl, 4-propylpiperazinyl, 1-homopiperidinyl or 4-morpholine radical. The products of the formula (I) are used as antispasmodics. <IMAGE>
Patent NO-940627-L (NO)
Title: Overvåkningssystem for lufthavn
Inventor: HOOVER PETER L
IPC: G08G9/02
Filed: 1994-02-24
Abstract: System til overvåkning av flyplasser for påvisning av fly og andre kjøretøyer, har en sensor (50) som er anbragt sammen med kantlys (2Qi_n) langs taksebaner (64), rullebaner (64) og andre bakkeområder, der sensorens (50) utgang er koblet til et sentralt datamaskinsystem (12) via strømtilførselsledninger (21l-n) for flyplassens kantlys. Påvisningssystemet omfatter Infrarøde sensorer (50). Utgangen fra hver sensor (50) mates til en mikroprosessor (44) l en lysanordnlng (201_n) og deretter til et strømlednings- modem (54) for overføring til den sentrale datamaskin (12) som Innbefatter et visningssystem (30) i fly- plassens tårn for gjengivelse av flyplassen og all trafikk på denne. Data fra hver sensor (50) langs taksebaner (64) og rullebaner (64) blir mottatt ved det sentrale datamaskinsystem (12) og behandlet for å gi omfattende oppfølgning og styring av all bakketrafikk på flyplassen.
Patent NO-941080-L (NO)
Inventor: PANZERI ACHILLE
IPC: A61P35/00
Filed: 1994-03-24
Abstract: Compounds of formula (I)    <IMAGE>  (I)  wherein: the symbol  represents a single or a double bond; B is a bond or a straight or branched C1-C6 alkylene chain; R is hydrogen or C1-C4 alkyl; R1 is hydrogen, C1-C6 alkyl or benzyl; R2 is a) hydrogen, fluorine, C1-C6 alkyl, C5-C7 cycloalkyl or C6-C9 cycloalkylalkyl; or b) aryl or C7-C10 arylalkyl; R3 is a) hydrogen, fluorine or C1-C4 alkyl; or b) aryl or C7-C10 arylalkyl; R4 is hydrogen, fluorine, or is absent when Y is a double bond; R5 is hydrogen, fluorine or C1-C6 alkyl; and when Y is a single bond, A is hydrogen, fluorine or   <IMAGE>    wherein each of R6, R7 and R8 independently is hydrogen, fluorine or C1-C6 alkyl; and when Y is a double bond, A is a   <IMAGE>    wherein each of R6 and R7 is independently hydrogen, fluorine or C1-C6 alkyl; with the proviso that at least one of the groups R, R1, R2, R3, R4, R5 or A contains at least one fluorine atom.
Patent NO-942700-L (NO)
Inventor: ROSTEK FRANK
IPC: B65B25/14
Filed: 1994-07-18
Abstract: What is specified is a method for packaging a roll formed by a wound-up material web, in which an end cover is used for covering each of the end faces, and a roll-packaging device with a roll repository (1) and with an end-cover applicator (2) having an aligning station (3) and applicator means (11) for each end cover. It is thereby to become possible to use conventional end covers for packaging in such a way that no plugs are required in the core of the wound-up roll. For this purpose, the end cover (4, 4a) is connected to the circumference of the roll (5, 5a). Provided for this purpose are an adhesive-tape dispenser (21) and pressure means (24, 31) which bring an adhesive tape (22) out of the adhesive-tape dispenser (21) to bear on the end cover (4, 4a) and on the circumference of the roll (5, 5a). <IMAGE>
Patent NO-943096-L (NO)
Title: Operatör orientert verktöy
Inventor: GJEDEBO JON
IPC: G06F3/00
Filed: 1994-08-22
Abstract: Prosessnøytral operatør orientert kontrollstasjon (101, 10") for styring og/- eller overvåking av ulike prosesser. Opera- tørpanelet omfatter funksjonsknapper (12, 12'f og betjenings- organer i form av styrestikker (14, 14'), pedaler etc. Opera- tørpanelet er tilordnet minst en dataskjerm (20, 22) som for hver enkelt prosess som skal styres og/eller overvåkes pro- grammeres for å vise symbolsk avbildede "funksjonsknapper" (12a) og "betjeningsorgan" (14a), for eksempel ved bokstav- og/eller figurangivelse av den funksjon som respektive funk- sjonsknapp (12, 12') henholdsvis betjeningsorgan (14, 14') har for nærværende for den bestemte prosess som operatør- panelet er tilordnet for å styre og/eller overvåke.
Patent NO-943709-L (NO)
Inventor: KADASH MARJORY A
IPC: A61F13/00
Filed: 1994-10-04
Abstract: This invention relates to improved wound dressings that are adapted to being readily sized to fit the shape of the wound so that healing is promoted. In particular, the present invention is directed to a scored spiral wound dressing. More particularly, this invention relates to a spiral wound dressing having superior absorption properties and which is capable of swelling in the presence of wound fluid to closely fit the wound. The dressing can be trimmed by tearing along the score line to form a strand or rope. <IMAGE>
Patent NO-952345-L (NO)
Title: Fremgangsmåte og apparat for å sporfölge en last på et transportbånd
Inventor: MURPHY CHRISTOPHER J
IPC: B65G47/46
Filed: 1995-06-14
Abstract: Oppfinnelsen angår en fremgangsmåte og et apparat for sporfølging av data forbundet med en last som blir transportert på et transportbånd mellom en kildestasjon omfattende en kildestasjons lastsensor og en destinasjonsstasjon omfattende en destinasjonsstasjons lastsensor, omfattende de følgende trinn: å generere et dataregister for lasten ved kildestasjonen, å laste dataregisteret inn i en programmerbar kontroller for å styre transportbåndet, å generere et pulssignal med et antall pulser som er direkte proporsjonalt med vandringen av transportbåndet, å etablere et forventningsvindu som indikerer forventet adkomst av lasten ved destinasjonsstasjonen, å etablere et avstandsfelt for lasten ved bruk av den mindre av avstanden mellom lasten og enhver forutgående last på transportbåndet eller avstanden mellom lasten og destinasjons-stasjonens lastsensor, å detektere den ledende kant på lasten ved destinasjon-stasjonens lastsensor, å sammenligne avstanden mellom kilden og destinasjonens lastsensor og å detektere eventuell glipping av lasten på transportbåndet, og å oppdate- re dataregisteret i kontrolleren basert på detektert glipping av lasten til å falle sammen med virkelig plassering av lasten på transportbåndet ved destina- sjonsstasjonen.
Patent NO-954521-L (NO)
Inventor: JENSEN BJARNE BO
IPC: C09K3/22
Filed: 1995-11-09
Abstract: An emulsion of oil in water containing oil, water, as well as possible, additional adjuvants, as well as a combination of an emulgator A and an emulgator B, where emulgator A is based on a fatty amine derivative and emulgator B is based on a fatty alcohol glycol ether. The emulsion presents a particularly good stability, even in case interfering additives or pollutions are present.
Patent NO-960377-L (NO)
Title: Hellbare vaskemiddelkonsentrater med uendret eller ökt viskositet ved fortynning med vann, og fremgangsmåte for fremstilling av slike
Inventor: CAO HOAI
IPC: C11D1/83
Filed: 1996-01-29
Abstract: Vandig vaskemiddel-konsentratblanding omfattende en micellær dispersjon av en blanding av minst to overflateaktive stoffer med forskjellig motstand mot utsalting med elektrolytt, og et oppløst elektrolytt-salt. Konsentratet har en viskositet på mindre enn 2500 eps (mPas) og inneholder elektrolytt-saltet i en slik konsentrasjon at ved fortynning av dette med en avpasset mengde vann så om- dannes dispersjonen av overflateaktivt stoff med micellær fase, i det minste delvis, til en dispersjon med lamellær fase, hvorved det tilveiebringes et for- . tynnet konsentrat med en viskositet på i : over 200 eps. ' Det beskrives også en fremgangsmåte for j fremstilling av konsentratblandingen.
Patent NO-962136-L (NO)
Title: Polyesteruretankondom
Inventor: MILLER ROBERT G
IPC: C08G18/65
Filed: 1996-05-24
Abstract: Et kodom av termoplastisk elastomer fremstilt fra en polyesteruretan.
Patent NO-963022-L (NO)
Inventor: RANDAHL TORBJOERN
IPC: H04M3/14
Filed: 1996-07-19
Abstract: A method and an apparatus for off-hook detection in a subscriber line interface circuit responds to a ringing signal which preferably lacks a DC component. A signal is generated that is a function of the line current through the subscriber line, and the time at which the signal exceeds a predetermined current value is measured. The measured time is compared with a predetermined time value, and an off-hook indication is produced in a processor depending on the comparison.
Patent NO-964254-L (NO)
Inventor: KOLLERUP IB
IPC: A61F13/20
Filed: 1996-10-07
Abstract: PCT No. PCT/DK95/00155 Sec. 371 Date Oct. 17, 1996 Sec. 102(e) Date Oct. 17, 1996 PCT Filed Apr. 12, 1995 PCT Pub. No. WO95/28138 PCT Pub. Date Oct. 26, 1995A tampon or closure device for insertion into an external opening of an artificial or natural body canal of an animal or human being includes a resilient compressed plug-like body of a molded material, the body having a longitudinal direction and being expandable to a cross-sectional dimension ensuring closure of the body canal when inserted in the opening with the longitudinal direction extending longitudinally in the canal. The body is provided with a withdrawal handle element protruding from the body and connected with an anchor part encapsulated in the body and having a relatively large bearing face against the surrounding molded material of the body. The handle element and anchor part are made from a material with a knitted structure to provide a 3-dimensional bond to the molded material of the body where the anchor part is designed as a soft flexible element oriented in the longitudinal direction.
Patent NO-971367-L (NO)
Inventor: STOUTEN WILLEM FREDERIK
IPC: F16L59/14
Filed: 1997-03-24
Abstract: PCT No. PCT/NL95/00319 Sec. 371 Date Mar. 4, 1997 Sec. 102(e) Date Mar. 4, 1997 PCT Filed Sep. 22, 1995 PCT Pub. No. WO96/10147 PCT Pub. Date Apr. 4, 1996Discharge pipe for discharging hot substances, which discharge pipe consists of an outer pipe, and an inner pipe placed coaxially inside the outer pipe, the inner pipe and the outer pipe enclosing a space, which is filled up with insulating means. The insulating means consist of a first layer (7) of compressible material surrounding the outside of the inner pipe (3), and a second layer (6) of concrete with very good thermal insulating properties which surrounds the first layer (7) and is surrounded by the outer pipe (2). The inner layer (7) consists of compressible material with high thermal insulation properties, such as ceramic wool. The discharge pipe is made up of several lengths of pipe (1), the successive lengths of pipe being fixed to each other by means of fixing means (13), and a compressible layer (12) of material with good thermal insulating properties, being placed between the contact faces of two successive lengths of pipe.