baber/WOPTO huggingface dataset:
Patent HU-212132-B (HU)
Inventor: FANCSALSZKI SANDOR
IPC: A01H5/08
Filed: 1990-12-04
Abstract: Fancsalszki fajtanevű egyszertermő, korai érésű, közepesen
nagy és zamatos gyümölcsű málna (Rubus
idaens L.)
Fancsalszki Sándor, Budapest
A bejelentés napja: 1990. 12.04.
A növényfajta neve: Fancsalszki egyszertermő
málna, amely a ((Willamette x Mailig Exploit) x Bristol))
x Mailing Exploit keresztezéséből származik. A
fajta az Amphorophora rubi tetűvel szemben rezisztens,
nagyon nagy termőfelületet növeszt, nagy hozamú,
korán érő és az OMMI bírálata szerint gyümölcsének
cukortartalma magasabb, íz- és zamatanyagokban
gazdagabb, mint a hasonló fajta.
A fajta azzal jellemezhető, hogy a növényi sarjak
és a virág-kocsány antociános elszíneződésének intenzitása
közepes, a gyümölcs színe közepesen piros,
mérete közepesen nagy, kemény, vállas alakú és korai
érésű.
Patent IT-1233784-B (IT)
Title: Machine to round and polish the peripheral edges of glasses lenses
Inventor: PAOLINI IVANO
IPC: G02B/
Filed: 1989-05-05
Granted: 1992-04-17
Abstract: The present invention concerns a machine to round and polish the peripheral edges of glasses lenses, and it comprises a support 1 for a highly fine grain, diamante grinding-wheel 3, and a second support 2 for the lens 4 to be treated. Said supports are reciprocally inclined, so that the abrasive surface 3a of grinding wheel 3 is in continuous contact with peripheral edge 4a of lens 4. At least one of said supports is provided with mechanical bounds 8 to a fix support 7, which are designed such that the support itself can oscillate according to shape and thickness changes in lens 4, in contact with said diamante grinding wheel 8.
Patent LT-4038-B (LT)
Title: Process for the preparation of red iron oxide pigment
Inventor: TVERKUTE ZITA
IPC: C09C1/24
Filed: 1994-12-22
Abstract: Invention is applied to pigment engineering, and for the production of red ferrous oxide pigment from industrial ferrous compounds waste in particular. In order to get the ferrous oxide pigment free of chromite alloys, a mix of ferrous oxides is prepared. It is acidified up to 4-4,5 pH before burning and the ready made mixture burnt for 0,5-1 hour at the temperature of 1,000-1,050 degrees Celsius, and then pulverised.
Patent LV-13745-B (LV)
Title: Silver/water, silver gels and silver based compositions, and methods for making and using the same
Inventor: HOLLADAY ROBERT
IPC: A61K33/243
Filed: 2007-08-06
Abstract: This document discloses a colorless composition comprising metal particles (e.g., silver nanoparticles) and water. Said particles comprise an interior of elemental metal (e.g., silver) and an exterior of metal oxide (e.g., one or more silver oxide(s)). And the metal nanoparticles are present in the water at a level of about 5-40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described. Such compositions can be incorporated into a hydro-gel with essentially no loss of antimicrobial properties. In this document are also disclosed various metal-containing compositions with unexpected biological efficacy are also disclosed.
Patent LV-11678-B (LV)
Title: Injection-moulded single-edge plastic container with a snap-on lid
Inventor: KEMMERICH HERBERT
IPC: B65D43/08
Filed: 1996-09-25
Abstract: The invention relates to a container characterized in that the interior (14) of the lid (2) when closed lies below the upper edge (3) of the container (1). The inside (15) of the lid edge surrounding the lid interior (14) has a reinforcement bead (16) running round it with a multiplicity of inwards-facing parallelepipedal projections (17) which connect the lid interior (15) to the inside of the lid edge. The outer part (6) of the lid edge running round the outside of the plastic container wall (4) has an ouwards-facing inclined slide surface (10) merging in an approximately vertical zone (11) which is located at a large distance from the container wall (4) and terminates close to the edge (8) running round the container. The aim of the invention is to increase the ability of the containers and their lids to resist damage when they are stacked one on top of the other, thus considerably facilitating the stacking process and avoiding damage to the edge of the lid by adjacent containers during stacking or transport on pallets for instance.
Patent NO-146358-B (NO)
Title: Analogifremgangsaate ved fremsilling av nye terapeutisk aktive prostaglandiner
Inventor: GANDOLFI CARMELO
IPC: A61K31/19
Filed: 1975-09-05
Abstract: Analogifremgangsmåte ved fremstilling av nye terapeutisk aktive prostaglandiner.
Patent NO-157899-B (NO)
Title: Stivt, ikke-antenntbart termoplastisk skum av klorert polyvinylklorid, fremgangsmaate for dets fremstilling samt skumbar blanding.
Inventor: NEHMEY SAMUEL DONALD
IPC: C08J9/00
Filed: 1982-09-13
Abstract: Sammensetning tilpasset for å bli skummet til vesentlig en lukket cellestruktur, idet en overveiende del av cellene har en størrelse mindre enn 500 ym og inneholdende et klorfluoralkan med 1-2 karbonatomer, idet sammensetningen omfatter klorert polyvinylkloridharpiks, og en effektiv mengde av et esemiddel, en effektiv mengde av et kjernedannende middel og '-30 deler av et bearbeidelseshjelpemiddel pr. 100 deler av nevnte harpiks, og idet bearbeidel-sesh jelpemidlet har en fortynnet opplsningsviskositet over,5 og er valgt fra kopolymerer av styren og umettet nitril inneholdende 10-40% nitril
Patent NO-167276-B (NO)
Inventor: DOETSCH WERNER
IPC: C02F1/52
Filed: 1986-04-25
Abstract: A process for producing a solid, cold-water soluble, sulfate containing aluminum chloride composition suitable for use as a waste water clarifying agent comprising introducing alkali aluminate, sulfuric acid, hydrochloric acid and hydrated aluminum oxide into a spray drier and recovering the resulting solid product.
Patent NO-174186-B (NO)
Title: Sele for sikkerhetsline
Inventor: OLSSON RONNY
IPC: A62B/
Filed: 1990-10-22
Abstract: ppfinnelsen vedrører en sele for en sikkerhetsline av den type som skal holde en person som klatrer en påle mens den tillater ham å ha hendene fri. Selen omfatter to festeorganer (13) for sikkerhetslinen (2) som er anordnet langs hver sin skulderstropp (7, 7') av selen. Hvert festeorgan (13) er bevegelig langs en føring (12) tilordnet den tilhørende skulderstropp og påvirkes av ett eller flere fjærorganer (16) som ettergivende motvirker bevegelsene av festeorganet langs føringen.
Patent NO-177667-B (NO)
Inventor: THOMPSON IAN CLIFFORD
IPC: B25B21/00
Filed: 1993-02-09
Abstract: A torque wrench comprises a body member (2) containing a piston-cylinder assembly (10) to the piston of which is secured a shuttle member (14) reciprocable with the piston within the body member (2), and a housing (22) mounted on the body member (2) and including a drive member (28) pivotal about an axis (P) and having a neck portion (34) radially remote from the pivot axis (P). The shuttle member (14) has a cylindrical bore (16) therein the central longitudinal axis of which extends parallel with the pivot axis of the drive member (28), said bore (16) housing a cylindrical drive pin (18) in which is formed a transverse bore (20), the neck portion (34) of the drive member (28) being received within said bore (20) whereby, on linear movement of the piston, the drive member (28) is pivoted about the pivot axis (P) with the neck portion (34) of the drive member (28) undergoing guided sliding movement in the bore (20) of the drive pin (18), and the drive pin (18) pivoting about the central longitudinal axis of the bore (16) in the shuttle member (14). <IMAGE>
Patent NO-180154-B (NO)
Inventor: HAUSER JEAN-LUC
IPC: B05B17/06
Filed: 1993-12-28
Abstract: PCT No. PCT/FR93/00411 Sec. 371 Date Dec. 28, 1993 Sec. 102(e) Date Dec. 28, 1993 PCT Filed Apr. 28, 1993 PCT Pub. No. WO93/22068 PCT Pub. Date Nov. 11, 1993.An acoustic micropulverization device for the formation of microdroplets is disclosed having a cell that contains a propagating medium having an attenuation less than or equal to about 1 dB/cm. One wall of the cell comprises an ultrasonic generator. Another wall of the cell contains a reflective surface that operates to focus ultrasonic waves upward toward a point that is near the top surface of a liquid that is contained in a reservoir located above the cell, thereby producing microdroplets above the liquid's top surface. A chamber is located over the top surface of the liquid. This chamber includes means for diffusing the microdroplets.
Patent SE-301692-B (SE)
Inventor: WESTBERG W
IPC: A41D13/11
Filed: 1962-02-19
Abstract: 1,002,447. Face masks. MINNESOTA MINING & MANUFACTURING CO. Feb. 22, 1962 [Feb. 24, 1961], , No. 6957/62. Headings A5R and A5T. A filter-type face mask comprises a round preformed moulded seamless one-piece cup of resilient filter membrane weighing not more than 10 grms. and having an area of 20 to 30 sq. ins., the filter membraine comprising a compacted moulded porous layer of randomly interlaced staple textile fibres coated and unified by a rubbery water-insoluble sizing agent the air flow pressure drop therethrough being not over 0. 05" water at a flow rate of 30 litres per minute. In use, the cup is spaced from the nose and mouth and makers low pressure marginal contact with the face. The cup is made by moulding a web of interlaced staple textile fibres e.g. a mixture of drawn and undrawn fibres of a polyester of ethylene glycol and terephthalic acid with viscose rayon fibres, soft pressing with heat the moulded web so that it becomes form-retaining, saturating the moulded web with an aqueous dispersion of waterinsuluble acrylic polymer sizing latex e.g.polyethylacrylate and polyethylmethacrylate latex with an alkyl aryl polyether alcohol wetting agent and an anionic sulphonated alkyl ester for rendering the finished mask wettable, drying the web, cutting it into individual masks, shaping the edges and adding an aluminium nose strip 3 and a securing elastic 2. Specification 966,855 is referred to.
Patent YU-46672-B (YU)
Inventor: NEWKIRK M
IPC: C04B41/50
Filed: 1987-08-24
Abstract: The invention comprises a method of making self-supporting composite ceramic structures by the oxidation reaction of a body of molten parent metal precursor with a vapor-phase oxidant to form an oxidation reaction product. This reaction or growth is continued to form a thick, self-supporting ceramic body. The composite is recovered and in a separate subsequent operation, the surface is coated with one or more materials in order to effect desired changes in the properties of the surface, e.g., hardness, corrosion resistance.
Patent YU-46323-B (YU)
Title: Postupak za dobijanje peletizirane pesticidne formulacije
Inventor: MAHMOOD T
IPC: C08L29/04
Filed: 1987-11-23
Abstract: 0 do 65,0 mas.% pesticida, pomenuti pesticid je tehničkog kvaliteta i ima oralnu i/ili dermalnu LD50 vrednost, mereno na pacovima ili kunićima manju od 50 mg/kg; oko 5,0 do 60,0 mas.% polivinilne smole za suspenziju koja ima prosečnu molekulsku masu od oko 260000 do 340000; oko 0,2 do 2,0 mas.% stabilizatora toplote ili smesu stabilizatora toplote za smolu; oko 0,0 do 1,0 mas.% mazivog sredstva; oko 0,0 do 50,0 mas.% sekundarnog plastifikatora; oko 0,0 do 80,0 mas.% mineralnog aditiva; i 2,0 do 30,0 mas.% SiO2; naznače n time, što obuhvata: suvo mešanje, u mikseru visokog intenziteta, na temperaturi od oko 90 В°C do 110 В°C, smese od 1,0 do 65,0 mas.% pomenutog pesticida; 5,0 do 60,0 mas.% pomenute polivinilne smole; 0,2 do 2,0 mas.% pomenutog stabilizatora; i 0,0 do 1,0 mas.% pomenutog mazivog sredstva; hladjenje pomenute izmešane smese; mešanje sa ohladjenom izmešanom smesom oko 0,0 do 50,0 mas.% pomenutih sekundarnih plastifikatora; 0,0 do 80,0 mas.% pomenutog punioca i 2,0 do 30,0 mas.% SiO2; šaržiuranje tako dobijene smese u ekstruder ili pumpu za topljenje; zagrevanje pomenute smese od oko 150В°C do 180В° C; ekstrudovanje zagrejane smese kroz kalup; sečenje ekstrudata u pelete; šaržiranje tako obrazovanih peleta u struju vode koja ih transportuje na filtar gde se voda odvaja od peleta; i sušenje peleta; Prijava sadrži još 6 zavisnih zahteva.
Patent ZA-826323-B (ZA)
Title: Built liquid detergent compositions
Inventor: HO TAN TAI
IPC: C11D10/04
Filed: 1982-08-30
Abstract: A stable, low viscosity, bleaching, built liquid detergent composition contains 22 to 32% by weight of sodium triphosphate; 6 to 15% by weight of an active detergent mixture of anionic sulphonate or sulphate, soap and nonionic detergent in a weight ratio of (4.5-8.5):(0-3):(1.5-4); 2-10% by weight of an alkali metal sulphite and 0.2 to 2.0% by weight of a non-detergent short-chain alkyl-substituted benzene sulphonate having 1-4 carbon atoms in the alkyl chain. Preferred alkali metal sulphite is sodium sulphite and preferred short-chain alkyl-substituted benzene sulphonate is sodium toluene-, xylene- or cumene-sulphonate. The bleaching liquid detergent composition is a structured liquid having a viscosity measured at 20 DEG  C. and at 21 seconds1 shear rate of desirably not more than 0.7 Pa s.
Patent ZA-835972-B (ZA)
Title: Oxy-fuel burners
Inventor: GUILLAUME PAUL
IPC: F23Q3/00
Filed: 1983-08-12
Abstract: The invention relates to the electric ignition of oxy-fuel burners, as well as to the detection of the flame of these burners. A spark is induced between an electrode and the body of the burner, the said electrode being situated in the area of the recirculation flows having a relative proportion of oxygen and fuel comprised between the lower and upper limits of flammability, close to the said upper limit. The invention is applicable to burners supplied with a gaseous fuel.
Patent ZA-847164-B (ZA)
Title: Process for the preparation of a redispersible dispersion powder and the application thereof
Inventor: SCHULZE JOACHIM
IPC: C08F210/02
Filed: 1984-09-12
Abstract: A novel process for the preparation of a readily dispersible, pourable dispersion powder comprising emulsion polymerizing in the presence of a free radial initiator a mixture of 1 to 50% by weight of ethylene and 99 to 50% by weight of an ethylenically unsaturated comonomer phase comprising at least one member of the group consisting of (a) 60 to 100% by weight of vinyl chloride, (b) 0 to 40% by weight of monoethylically unsaturated, oil-soluble monomers, (c) 0 to 10% by weight of monoethylenically unsaturated water-soluble monomers having functional groups and (d) 0 to 5% by weight of oil-soluble monomers that are monoethylenically unsaturated and have functional groups or are multiple ethylenically unsaturated and optionally a protective colloid and/or emulsifier at an ethylene pressure of 10 to 150 bar to obtain an aqueous dispersion of a vinyl chloride-ethyelene copolymer, optionally adding to the aqueous dispersion (e) 0 to 40% by weight, based on the VCE-polymer, of at least one water-soluble substance having a Tg>/=60 DEG  C., (f) 0 to 1% by weight, based on the VCE-polymer, of an antifoaming agent, and (g) 0 to 30% by weight, based on the total weight of polymer constituents, of a finely divided antiblocking agent and spray drying or freeze drying the aqueous dispersion to obtain the readily redispersible, pourable powder of a vinyl chloride-ethylene copolymer and the powder produced by the said process and improved coatings, paints, glues and adhesives containing the said redispersible powder.
Patent ZA-849542-B (ZA)
Title: Method of growing lilies,and products:lily bulblet,lily bulb,young lily plant,lily plant,flowering lily plant,and cut flowers of same
Inventor: OGLEVEE JAMES ROBERT
IPC: A01G7/00
Filed: 1984-12-07
Abstract: Method of growing lilies, comprising growing a lily bulblet (10) directly into a lily plant (22), which could be initiated to flowering. 
<??>In a preferred embodiment the period of time of growing the bulblet into the lily plant is less than one year. 
<??>Short day conditions are used for growing the bulblet and/or young plant; long day conditions for growing the plant. 
<??>The plant growing according to the invention has more leaves (12) and the circumference of its bulb is less than that of the plant growing according to the prior art.
Patent ZA-853114-B (ZA)
Title: Split sheet surgical drape
Inventor: MORRIS HENRIETTA KRZEWINSKI
IPC: A61B19/08
Filed: 1985-04-25
Abstract: A split sheet surgical drape is disclosed. The opening in the drape has a plastic border between one and six inches in width on both surfaces of the drape. The lower surface of the border is coated with adhesive. The plastic border provides better attachment of the drape to similar drapes when the drapes are in use.
Patent ZA-863308-B (ZA)
Title: Process for the preparation of optically active azole derivatives
Inventor: PRIESNITZ UWE
IPC: C07D233/61
Filed: 1986-05-02
Abstract: A process for the preparation of a substantially pure optically active azole derivative of the formula   <IMAGE>   in which R1 and R3 are organic radicals, R2 is hydrogen or methyl, and X is N or CH, comprising in a first stage reacting a racemate of an azole derivative of the formula   <IMAGE>  with an optically active permethric acid halide of the formula   <IMAGE>   in which Hal represents chlorine or bromine, thereby to produce a diastereomeric mixture of an ester of the formula   <IMAGE>  in a second stage separating the components of the ester mixture based on their different physical properties, and in a third stage reacting an individual component ester with a base in the presence of a diluent to liberate the desired substantially pure optically active azole derivative.
Patent ZA-868272-B (ZA)
Title: Substituted benzoate ester prodrugs of estrogens
Inventor: AUNGST BRUCE JEFFREY
IPC: C07J1/00
Filed: 1986-10-30
Abstract: Substituted benzoate ester prodrugs of β-estradiol and ethynyl estradiol are provided which have improved bioavailability and extended duration of action when administered orally.
Patent ZA-869080-B (ZA)
Title: Process for the preparation of l-homoalanin-4-yl(methyl)-phosphinic acid and its alkyl esters
Inventor: ZEISS HANS-JOACHIM
IPC: C07F9/30
Filed: 1986-12-02
Abstract: Process for the preparation of L-homoalanin-4-yl(methyl)-phosphinic acid (esters) of the formula I    <IMAGE>  I  (R, R1=H, alkyl) or salts thereof by reacting an R-3-isopropyl-2,5-dialkoxy-3,6-dihydropyrazine of the formula II with a  beta -halogenoethyl(methyl)phosphinic acid ester of the formula IV <IMAGE> II   <IMAGE> IV  (R', R1'=alkyl) to give compounds of the formula V    <IMAGE> V  and then subjecting the latter to hydrolytic cleavage.
Patent ZA-884533-B (ZA)
Title: Catalyst obtained from a carboxylic acid and a tin bischelate useful for elastomer compositions
Inventor: CAVEZZAN JACQUES
IPC: C07F7/22
Filed: 1988-06-24
Abstract: A process for the preparation of a monochelate of pentacoordinated tin of valency IV by reaction of a tin bischelate and of an organic acid. The monochelate or the reaction mixture containing it can be employed as a catalyst for crosslinking an organopolysiloxane composition curing by polycondensation reactions and containing an  alpha , omega -dihydroxypolydiorganopolysiloxane oil, a crosslinking agent and optionally inorganic fillers and an adhesion promoter.
Patent ZA-889303-B (ZA)
Title: Friction facing material and carrier assembly
Inventor: MAYCOCK IAN COMMANDER
IPC: F16D69/04
Filed: 1988-12-13
Abstract: A friction facing material and carrier assembly (2) for inclusion in a clutch driven plate. The assembly (2) comprises a metal carrier plate (4) having resiliently pliable spokes or paddles (14) at it outer periphery. Two annuli (20, 22) of friction material forming friction facings are bonded to opposite sides of the paddles (14) by a respective layer of an elastomeric material, for example a silicone rubber. Each elastomeric layer is in the form of a continuous stripe extending substantially continuously around the facing for at least one turn and from the outer to the inner periphery of the respective friction facing. For example, the facing (22) is bonded by an elastomeric spiral having three turns 24A, 24B and 24C. Preferably in a complete assembly (2), both spirals of elastomeric material are of the same hand with turns of one spiral opposite gaps between adjacent turns of the other spiral. <IMAGE>
Patent ZA-915425-B (ZA)
Title: An adaptable insert for a cartridge holder
Inventor: FOND OLIVIER
IPC: A47J31/40
Filed: 1991-07-11
Abstract: The invention relates to an insert (1) which can be fitted in a cartridge holder for the preparation of a beverage in a coffee machine, comprising a housing (2) of substantially frustoconical shape with a peripheral border (20) for receiving the cartridge to be extracted and a fixed central pin (3) under this housing.
Patent ZA-944139-B (ZA)
Title: Secondary amines as antidiabetic and antiobesity agents
Inventor: DOW ROBERT L
IPC: C07D209/42
Filed: 1994-06-13
Abstract: PCT No. PCT/IB94/00117 Sec. 371 Date Dec. 14, 1995 Sec. 102(e) Date Dec. 14, 1995 PCT Filed May 20, 1994 PCT Pub. No. WO94/29290 PCT Pub. Date Dec. 22, 1994The present invention relates to compounds of the formula    <IMAGE>  I  having utility as hypoglycemic and antiobesity agents, methods for their use and pharmaceutical compositions containing them. The compounds of the present invention also possess utility for increasing lean meat deposition and/or improving lean meat to fat ratio in edible animals, i.e. ungulate animals and poultry.
Patent ZA-947052-B (ZA)
Title: Intravenously administrable aqueous solution
Inventor: GROKE KARL
IPC: A61K31/635
Filed: 1994-09-13
Abstract: An intravenously administrable, aqueous solution of a water-soluble, physiologically tolerable salt of sulfametrole and of trimethoprim, in which malic acid, L-serine and/or L-threonine are present as solubilizers, and which has a pH of of 6.5-7.0 is disclosed.
Patent ZA-948672-B (ZA)
Title: Crepe effect bandage
Inventor: KININMONTH JULIA
IPC: D03D15/56
Filed: 1994-11-03
Abstract: PCT No. PCT/GB94/02427 Sec. 371 Date May 1, 1996 Sec. 102(e) Date May 1, 1996 PCT Filed Nov. 4, 1994 PCT Pub. No. WO95/13038 PCT Pub. Date May 18, 1995There is disclosed a woven bandage which exhibits a crepe effect and which contains elastomeric yarns and composite warp yarns (1) wherein the composite yarns comprise a staple fibre yarn (2) and a textured filament yarn (3) twisted together. The staple fibre yarn (2) forms loops (4) which gives the bandage a crepe effect. There is also described a process for manufacture of such bandages.
Patent ZA-963950-B (ZA)
Title: Heterocyclic spiro compounds, process for the preparation thereof, and pharmaceutical compositions containing them
Inventor: GUILLONNEAU CLAUDE
IPC: A61P17/00
Filed: 1996-05-17
Abstract: 8-(Hetero)arylmethoxyphenylalk(ano)yl-8-azaspiro(4,5) decane derivs. of formula (I) and their enantiomers, diastereoisomers and salts are new. In (I), Ar = mono- or bicyclic aromatic hydrocarbyl (opt. substd. by halo, alkyl, alkoxy, CF3 or phenyl) or mono- or bicyclic heterocyclyl contg. 1-3 O, N or S and opt. substd. as above; R = H or OH; R' = H; or alkyl, phenyl, phenylalkyl, cycloalkyl or cycloalkylalkyl (all opt. substd. by halo, alkyl, alkoxy or CF3) or CRR'=CO; A = direct bond, CO or 1-5C n-hydrocarbylene opt. contg. O and/or substd. by 1 or 2 of halo, alkyl, alkoxy and oxo; Het = 5-membered heterocycle contg. 1-4 O, N or S and opt. substd. by 1 or 2 of alkyl, alkoxy, OH, O, SH, S, aminoalkyl, alkylaminoalkyl and dialkylaminoalkyl; alkyl moieties have 1-5 C atoms and cycloalkyl moieties 3-8 C atoms.
Patent ZA-976391-B (ZA)
Title: Immersion nozzle for pouring molten metal (joint point)
Inventor: REICHELT WOLFGANG
IPC: B22D41/50
Filed: 1997-07-18
Abstract: The spout is intended for pouring liquid metal, in particular, steel from a vessel into a mould of a continuous casting installation. It consists of an approximately pipe-shaped top section and a bottom section with wide and narrow sides comprising: a) the bottom end of the top section (11) has a broadened zone (12) surrounding the top end of the bottom section (21); b) in the entry zone of the bottom section a seal (31) is located between the top and bottom sections; c) the bottom section is provided with a support (40) in its entry zone; d) fixing elements (50) engage with the support of the bottom section and join the latter to the top section.