baber/WOPTO huggingface dataset:
Patent FR-2702241-B1 (FR)
Inventor: SABATIER GERARD
IPC: F16L39/00
Filed: 1993-03-03
Granted: 1995-06-02
Abstract: Dual body drillpipe for use in so-called counterflush drilling methods, comprising two concentric tubes between which the drilling fluid is injected so that it rises through the inner tube with the rock fragments. The robust inner tube (1) which transmits the torque, thrust or traction of the drill head to the digging tool, includes at its two ends a pin thread (22) and a box thread (23); while the thin outer tube (2) comprises thicker end inserts (25, 26) for centering the inner tube (1). The end inserts include injection fluid passages (27) with slots (23, 33) provided thereon, serving to join rotatably the outer tube (2) to the inner tube (1).
Patent FR-2713548-B1 (FR)
Inventor: CATHERINE COUDERT
IPC: E04C2/54
Filed: 1993-12-09
Granted: 1996-01-19
Abstract: The invention generally relates to a method of manufacturing a polycarbonate-based panel (sheet) intended for the construction of buildings, especially glasshouses (conservatories, greenhouses), and comprising a core layer and at least one covering layer. According to the invention, the method consists in making up a composition for the said covering layer by incorporating shiny metallic particles, of a mean diameter ranging from approximately 200 to approximately 500 mu m, into polycarbonate and coextruding the said polycarbonate covering layer, in order partially to decrease the light transmission of the panel and so as to reduce the greenhouse effect. The invention applies to the building field.
Patent FR-2724885-B1 (FR)
IPC: B60P1/28
Filed: 1994-09-26
Granted: 1997-01-03
Abstract: The protector consists of a false chassis or cradle (2) with lengthwise supports (6,7) resting on the base (4) of the truck, and a liner (1) which rests on the cradle and side walls (5). The liner and cradle have matching convex and concave surfaces respectively which fit together when the liner is in place. The lengthwise supports for the cradle lie in line with the truck's main lengthwise chassis members (8,9), and there is a gap between the underside of the cradle and the base of the truck body to absorb shocks. The liner is made from high-grade steel and held in place by standard fixings.
Patent FR-2736828-B1 (FR)
Inventor: JEANJEAN MICHEL
IPC: A61Q5/02
Filed: 1995-07-20
Granted: 1997-10-10
Abstract: A composite product consisting of a combination of a liposterolic<i>serenoa repens</i> tract and zinc salicylate, a cosmetic skin  care composition containing said composite product as the active ingredient, and a suitable carrier for the topical application thereof, are disclosed.
Patent FR-2739214-B1 (FR)
Inventor: CARME CHRISTIAN
IPC: G10K11/178
Filed: 1995-09-27
Granted: 1997-12-19
Abstract: A filtering device consisting of a nonadaptive feedback filter that generates active attenuation of the vibration on the framework, without generating instability in a first frequency band, and an adaptive feedforward filter is disclosed. Feedforward filtering coefficients are adapted in real time according to an algorithm chosen to minimize the energy of the types of vibration which are picked up by a sensing device as a function of the energy of the types of vibration which are picked up by the sensing device, and of the previously measured transfer function, in the presence of a feedback filtering device and in the absence of a feedforward filtering device, between an actuator device and a first sensing device. The device makes it possible to linearize the feedback attenuation throughout a second frequency band which is wider than the first frequency band, to accelerate the convergence of the minimization algorithm and to enhance the robustness of the feedforward filter.
Patent FR-2739383-B1 (FR)
Inventor: CAVAILLE JEAN YVES NICOLAS
IPC: C08B3/20
Filed: 1995-09-29
Granted: 1997-12-26
Abstract: PCT No. PCT/FR96/01508 Sec. 371 Date Jul. 9, 1998 Sec. 102(e) Date Jul. 9, 1998 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/12917 PCT Pub. Date Apr. 10, 1997Cellulose microfibrils, in particular for use as a reinforcing filler or structuring agent in composite materials, a method for making same, and composite materials containing said microfibrils, are disclosed. Specifically, said microfibrils are surface-modified cellulose microfibrils with an L/D ratio higher than 20, preferably higher than 100, and an average diameter of 1-50 nm, where L is the length of the microfibril and D is its average diameter. At least 25% by number of the hydroxyl functions on the surface of the microfibrils are esterified by at least one organic compound including at least one function capable of reacting with the hydroxyl groups of the cellulose. As a result, when the organic compound is a compound that includes acetyl groups such as acetic acid, said microfibrils are used as a reinforcing filler in a material comprising cellulose acetate as the polymeric matrix. The filled composite material may be shaped to provide films, moldings, fibers or yarns.
Patent FR-2750432-B1 (FR)
Inventor: PETIT SERGE
IPC: C11C3/00
Filed: 1996-06-28
Granted: 1998-09-04
Abstract: Process for peroxidation of a fatty substance comprises subjecting the fatty substance to X-ray,  gamma -ray or  beta -ray radiation in the presence of oxygen, such that the peroxidised product contains less than 0.30 ppm malondialdehyde (MDA) per peroxide unit.
Patent FR-2762418-B1 (FR)
Inventor: JOUENNE FRANCOIS
IPC: G06F12/00
Filed: 1997-04-17
Granted: 1999-06-11
Abstract: The memory management method involves allowing memory access from concurrent tasks. The management operates according to the phase of a transaction. For a read operation a lock, called a hold, is attributed to each variable to be read. If there is no hold assigned the variable cannot be accessed. A pointer to the location of each variable is passed to the process requesting access to allow it atomic access to the value of the variable. A write operation awaits release of the hold on the variable to be written, and if there is a write lock, awaits its release. If a read lock is present, the priorities of reading and writing task are compared, and the lock released if the writing task has a higher priority.
Patent FR-2786339-B1 (FR)
Inventor: TAURAND CHRISTOPHE
IPC: H02M3/335
Filed: 1998-11-20
Granted: 2001-02-02
Abstract: A device for transferring power by an electrical energy transformer, and in particular by a magnetic coupler, including on a primary side a primary winding in series with an alternating source and on a secondary side a secondary winding, a rectifier bridge, and a load. The rectifier bridge includes two diodes arranged in series with the secondary winding and two MOS transistors also in series with the secondary winding. The load is connected on the one hand to a point common to the two diodes and on the other hand to a point common to the two MOS transistors. A mechanism is provided for switching the MOS transistors in such a way that they are simultaneously in the ON state for a predetermined duration. Such a device may find application to cases of weak coupling between a primary side and a secondary side.
Patent FR-2796670-B1 (FR)
Inventor: LAGIER MARC
IPC: F02D41/04
Filed: 1999-07-23
Granted: 2001-10-26
Abstract: Device for controlling the mode of combustion of a controlled-ignition four-stroke petrol engine (1) equipped with a system (2) for the direct injection of fuel into the combustion chamber, with at least one catalytic converter (3) placed in the exhaust line (4) of the engine (1) and with a control system (5) receiving information from sensors (6, 7, 9, 10) relating to the rotational speed and to the load of the engine, to the position of the accelerator pedal, and to the temperatures of the engine and of the exhaust gases, characterized in that the control system (5) includes a device for choosing a priority mode of combustion taking account of the said information and on the basis of an estimate of the combustion efficiency of the various modes available.
Patent FR-2800750-B1 (FR)
Inventor: O REAGAN SEANA
IPC: C12N15/12
Filed: 1999-11-05
Granted: 2003-01-31
Abstract: The invention concerns the identification of a novel family of CTL (Choline Transporter Like) genes, in particular hCTL1 and hCTL2, involved in the metabolism and/or transport of choline in cells such as the intestinal tract cells, nervous cells, in particular motoneurons, sensitive neurons, neurons of the nucleus dorsalis of the spinal cord and oligodendrocytes. The invention opens up new prospects in particular for the treatment of familial dysautonomia, and Tangier disease. More generally, the identification of CTL genes enables to develop new strategies for treating diseases of the nervous system, in particular neurodegenerative demyelenating diseases, particularly Alzheimer disease, Parkinson disease and Huntington disease.
Patent FR-2803108-B1 (FR)
Inventor: STARCK THIERRY
IPC: H02B13/035
Filed: 1999-12-22
Granted: 2002-02-08
Abstract: Modules for assembly eg. as an integrated switchboard have stub conductors (5), emerging through insulating bushings (1) sealed into the side-plates (2), that require to be connected electrically to the corresponding stubs (5'), with which they are aligned, projecting through bushings (1') in the side (2') of the adjacent module. The stubs are bolted (6) internally to the contained equipment; externally they present circular recesses (7') of unequal depth but equal diameter, on mutually aligned horizontal axes. In the deeper recess (7') a cylindrical plug (8) mounted on an adjusting screw can by rotation enter the shallower recess in the opposing stub. Peripheral sliding contacts (10) on the plug ensure good connection. This joint is insulated by a doubly flanged flexible sleeve (12). Its tubular centre section forms a simple bellows whose axial compression gives access to the joint. The sleeve flanges present flat outer faces that lie against the outer faces (11,11') of the bushings and are held in close contact with them by detachable clamping pieces (13,13') bolted (14,14') to the side-plates. For electric stress distribution, the sleeve's internal and external surfaces, except the bushing contact surfaces, have a semi-conducting outer layer. Variants feature alternative plug and stub configurations.
Patent FR-2803153-B1 (FR)
Inventor: LE GENDRE YVES
IPC: H04M1/724
Filed: 1999-12-23
Granted: 2002-03-15
Abstract: The caller identification procedure has a software agent (14) in the terminal (10) which sends the caller telephone number over the public network (1) and internet to a WAP server with a request for caller identification information which can be repeated or sent to other servers until a response is received.
Patent HU-224752-B1 (HU)
Title: Method for producing of crude mixture for cement clinker, and producing of cement clinker
Inventor: BERES JANOS
IPC: C04B7/00
Filed: 2001-07-02
Abstract: Coarse powder comprising a mixture of limestone, clay and iron ore is prepared and supplied continuously in the course of clinker-cement manufacture. The mixture is placed in a rotating kiln used conventionally in the cement industry. 5-15 wt.% of the components of the mixture are substituted by natural or synthetic carbonate-free additives having a glass-like and/or crystalline structure. Basic components and additives are comminuted in a coarse mill. The homogenized composition is analyzed and the relative proportion of additives is continuously adjusted. The process also renders available coarse-flour destined for clinker-cement production. The flour contains a mixture of limestone, clay and iron-oxide, 1% of which is substituted by natural and/or synthetic vitreous and/or crystalline carbonate-free additives. A final composition is homogenized by milling.
Patent HU-226384-B1 (HU)
Title: Tooth shade guide and package combination
Inventor: MAINI ANNA
IPC: A61C19/10
Filed: 2000-10-31
Abstract: A tooth shade guide device and package combination comprises a device frangibly attached to the package.
Patent HU-229960-B1 (HU)
Title: Novel composition based on a thiazolidinedione and metformin and its use
Inventor: LEWIS KAREN
IPC: A61P3/10
Filed: 2000-11-16
Abstract: A pharmaceutical composition, comprising a thiazolidinedione, such as Compound (I), metformin hydrochloride and a pharmaceutically acceptable carrier, wherein the thiazolidinedione and metformin hydrochloride are each dispersed within its own pharmaceutically acceptable carrier in the pharmaceutical composition for use in the treatment of conditions associated with the pre-diabetic state.
Patent HU-229873-B1 (HU)
Inventor: KOVACSHAZY GERGELY
IPC: F28F1/00
Filed: 2009-10-12
Abstract: Nagyelemes készház rendszer a gyártási helyen beépített hőszigeteléssel (I), külső kéreggel (R) és gépészeti, valamint
elektromos hálózattal. A külső kéregre (R) annak kiöntésekor szigetelőréteget (I) helyeznek el. A belső teherhordó
betonrétegbe (Y) előre összeszerelt gépészeti (C, M, S, V) és villanyszerelési (G) csöveket, szerelékeket tartalmazó
rácsot öntenek, majd erre ráerősítik a külső kérget (R) a szigetelőréteggel (I). Az így létrejövő szendvicsfal (A, B, B1-B7)
utólagos vésést nem igényel, az építkezés helyszínén helyére daruzás, rögzítés, a vezetékek (V, C, M, D1, D2, D3)
csatlakoztatása, majd a hézagok kiöntése után nyomáspróbázható.
A hőszigetelést (I) védő külső kéregbe (R) hálót (U) ágyaznak, melyet a hőszigetelés (I) ferde átvágásával felül teherviselő
módon bekötnek a vasalathoz (X). A csatornacsöveket (C, M) csőhéjjal (P) együtt öntik körbe betonnal (Y), így az képes a
megszilárdult betonhoz (Y) kismértékben képest mozogni. A csatornacsöveket (C, M) tölcsérszerű rávezető gallér (T)
segíti az összekapcsolódásban. A hajlékony vízcsövek (V) végei rugalmas anyaggal (K) vannak körülvéve így a helyére
emelt falelemekben (Β1, B2) lévő vízcsöveket (V) össze lehet kötni a csatlakozási pontoknál (C2). Az elektromos
vezetékeket a gyártási helyen előre behúzzák a védőcsövekbe (G) és a szerelvényeket (J) is bekötik. Az egyes falakból
túllógó vezeték végeket (F) a többi, helyére emelt fal (B1-B7) védőcsatornáiban (D) elvezetik egy vagy több csatlakozó
dobozig (E1-E4). A csatlakozó doboz (mely szintén előre beépítésre kerül egy falba) másik irányból hasonlóan
védőcsatornában (D) vezetett sokeres kábelekkel (D1, D2, D3) kap betáplálást a biztosítéktáblától (E) (szintén előre
beépíthető és szerelhető).
Patent HU-225778-B1 (HU)
Title: Benzimidazol derivatives, pharmaceutical compositions containing them and their use
Inventor: FUJIMOTO KOICHI
IPC: C07D417/10
Filed: 1996-05-31
Abstract: Compounds of formula (I): <CHEM> Äin which: X represents an optionally substituted benzimidazole group; Y represents an oxygen or sulphur atom; Z represents a 2,4-dioxothiazolidin-5-ylidenylmethyl, 2,4-dioxothiazolidin-5-ylmethyl, 2,4-dioxo-oxazolidin-5-ylmethyl, 3,5-dioxooxadiazolidin-2-ylmethyl or N-hydroxyureidomethyl group; R represents hydrogen, alkyl, alkoxy, halogen, hydroxy, nitro, amino or aralkyl; and m is an integer from 1 to 5Ü; have valuable activity for the treatment and/or prophylaxis of a variety of disorders, including one or more of: hyperlipemia, hyperglycemia, obesity, impaired glucose tolerance (IGT), insulin resistance and diabetic complications.
Patent HU-220741-B1 (HU)
Title: Height-adjustable foot support, in particular for assembly tables
Inventor: BAIER
IPC: A47C16/02
Filed: 1997-01-29
Abstract: A height-adjustable foot support (20), in particular for an assembly table (10), is guided on at least one vertical guiding bar (15) with a first guiding surface (16) and a second guiding surface (17). The first guiding surface (16) has a toothed rack (18) upon which rolls a toothed wheel (31) rotatively mounted on the foot support (20). A prestressed traction spring (35) engages the foot support (20). The foot support (20) has a swivelling thrust bearing (29) on its guiding surface (17) opposite to the toothed rack (18). In an inclined position of the foot support (20), a clamping jaw (27) assisted by the force of the traction spring (35) engages the guiding surface (16) opposite to the guiding surface (17) for the thrust bearing (29), so that the foot support (20) may be locked in the inclined position on the guiding bar (15).
Patent HU-222395-B1 (HU)
Inventor: DALL ORO ROBERTO
IPC: F28D1/047
Filed: 1996-11-13
Abstract: A találmány tárgya eljárás kígyóvonal alakú hőcserélő (3) készítésére,különösen hűtőkörök kondenzátorának készítésére, amelynek alakja úgyvan kiképezve, hogy oldalról nézve a hőcserélő (3) fő síkjához képestlegalább egy részén ferde, amely ferdeség iránya legalább egyszerhirtelen vagy fokozatosan megváltozik. Az eljárás a következőlépéseket tartalmazza: csövet lapos kígyóvonal-alakzatra (103)hajlítanak, amelyben egy sorozat, lényegében véve párhuzamos ésegyenes csőszakasz (203) van, a lapos kígyóvonal-alakzat (103)mindegyik oldallapjához több huzalt (303) erősítenek, amely huzalok(303) a lapos kígyóvonal-alakzat (103) hossza mentén helyezkednek el,és annak egyenes csőszakaszaihoz (203) erősítik hozzá őket, és a laposkígyóvonal-alakzatot (103) és az ehhez hozzáerősített huzalokat (303)ezen egyenes csőszakaszok (203) közül egy vagy többnek megfelelőtengely vagy tengelyek körül meghajlítják. A találmány tárgya továbbáaz eljárás révén kialakított kígyóvonal alakú hőcserélő. ŕ
Patent HU-224412-B1 (HU)
Title: Non-lethal projectile for firearm cartridges
Inventor: DUBOCAGE BERNARD
IPC: F42B5/03
Filed: 1999-12-09
Abstract: Nonlethal firearm projectile is made of a soft elastic composite material (I) comprising a particulate metal filler dispersed in a crosslinked polybutadiene matrix, where (I) has a Shore hardness of 2-30 and a density of 1.0-2.9, the filler has a density of 4-22 and the crosslinked polybutadiene has chains with a number-average molecular weight (Mn) of 500-10,000. Independent claims are also included for: (1) A process for producing the projectile, comprising: (a) mixing a liquid polybutadiene having reactive terminal groups and an Mn of 500-10,000 with a crosslinking agent and the filler; (b) introducing the resulting heat-curable paste into a mold; (c) crosslinking the polybutadiene by heating; and (d) removing the projectile from the mold; (2) a composite material as defined for (I); (3) a cylindrical firearm cartridge containing at least one projectile as above.
Patent JP-3012234-B1 (JP)
Title: 紙送りロ―ラ及びその製造方法
IPC: B65H5/06
Filed: 1999-03-05
Granted: 2000-02-21
Abstract: 【要約】
【課題】水硬性組成物を用いて、軽量でより安価でかつ 回転軸とローラ部の同心円性に優れかつ形状寸法安定性 の高い紙送りローラ及びその製造方法を提供することを 目的とする。
【解決手段】回転軸と、水硬性組成物からなる混合物を 加圧成形させた後養生して硬化させることによって製作 された円筒状ローラ部とからなる紙送りローラであっ て、前記回転軸が円筒状ローラ部の両端面の中心部に両 側から軸方向内方に円筒状ローラ部の外周面と同心円状 でかつ相互に芯合わせした状態で差し込まれて一体化さ れた２つの回転軸部によって構成されている紙送りロー ラとする。
Patent JP-3055686-B1 (JP)
Title: 活性炭化物の製造方法及び装置
IPC: C01B32/336
Filed: 1999-03-15
Granted: 2000-06-26
Abstract: 【要約】
【課題】  含水有機物を加熱、炭化、賦活処理して、吸 着能力のある活性炭化物を製造する。
【解決手段】  円筒ケーシング１４ａ、１４ｂ、１４ｃ 内の軸方向中央部にガス流路１６を確保したスクリュー コンベヤ１０ａ、１０ｂ、１０ｃを複数段、燃焼炉１２ 内に配置して、前段で含水有機物の乾燥工程が、中段で 炭化工程が、後段で賦活工程が行われるようにし、水蒸 気及び還元ガスを後段の賦活工程が行われるスクリュー コンベヤ１０ｃの上部より燃焼炉１２内に排気させて、 燃焼炉１２に下部から供給される燃焼用空気で還元ガス を完全燃焼させる。
Patent NL-1042409-B1 (NL)
Title: Systeem voor het fixeren van het vrije uiteinde van een kledingriem
Inventor: SANDER VENEMA
IPC: A41F9/00
Filed: 2017-06-01
Granted: 2018-12-11
Abstract: UITTREKSEL Systeem voor het tijdens het dragen van een kledingriem (1) verbinden van het vrij beweegbare uiteinde (2) ervan met 5 een onderliggend gedeelte (3) van die riem, welk systeem een ten opzichte van dat riemgedeelte verbonden schuif- element (4) omvat dat is ingericht om het uiteinde van de riem losmakelijk met zich te verbinden. Het schuifelement is aan zijn buitenzijde voorzien van één of meer koppelele- 10 menten (5/6,7/8) die zijn ingericht om het vrij beweegbare uiteinde van de riem met het schuifelement te verbinden. (FIG. 1) 1042409
Patent NL-1043830-B1 (NL)
Title: Textiele voet- en/of beenbedekkers, zoals kousen of sokken, voorzien van onderlinge koppelmiddelen
Inventor: MIKE FREDERIK JEROEN MEIJER
IPC: D06F95/00
Filed: 2020-10-29
Granted: 2022-06-21
Abstract: Paar textiele voet- en/of beenbedekkers (1), in het bijzonder kousen of sokken, voorzien van koppelmiddelen (2) voor het losmakelijk aan elkaar kunnen koppelen van de textiele voet- en/of beenbedekkers wanneer deze niet door een gebruiker gedragen worden. De uitvinding beoogt te voorzien in een oplossing voor het probleem dat textiele voet- en/of beenbedekkers heel gemakkelijk kunnen zoekraken in de was. De koppelmiddelen kunnen worden gevormd door een stel drukknopen (2).
Patent NL-2014483-B1 (NL)
Title: Inrichting voor het stallen van rijwielen.
Inventor: KOEN PAUL MARIE MAAS
IPC: E04H6/00
Filed: 2015-03-18
Granted: 2017-01-17
Abstract: De uitvinding betreft een inrichting voor het stallen van rijwielen. De inrichting omvat een eerste rij van een veelheid naast elkaar geplaatste rijwielstandaardelementen. Deze rijwielstandaardelementen van de eerste rij zijn rechtstreeks voor een gebruiker toegankelijk zodat een te stallen rijwiel door de gebruiker in een van de veelheid rijwielstandaardelementen plaatsbaar is. De inrichting omvat verder een op verticale afstand boven de eerste rij voorziene tweede rij van een veelheid naast elkaar geplaatste rijwielstandaardelementen. De inrichting is voorzien van een hefeenheid waarmee een te stallen rijwiel door een gebruiker in een van de rijwielstandaardelementen van de tweede rij plaatsbaar is. Volgens de uitvinding is de hefeenheid verplaatsbaar tussen ten minste twee van de veelheid rijwielstandaardelementen van de tweede rij. De hefeenheid is daarbij door een gebruiker positioneerbaar nabij het gewenste rijwielstandaardelement
Patent NL-2015042-B1 (NL)
Title: Enthalpie-uitwisselende eenheid ter verkleining van de invloed van de oppervlaktespanning, enthalpie-uitwisselaar en werkwijze voor het vervaardigen van een enthalpie-uitwisselende eenheid.
Inventor: PETER GERARD HANS UGES
IPC: F28F13/06
Filed: 2015-06-29
Granted: 2017-01-24
Abstract: Enthalpie-uitwisselende eenheid omvattende ten minste één plaat langs ten minste één contactzijde waarvan zich een eerste vloeibaar medium en een tweede medium kunnen verplaatsen onder uitwisseling van enthalpie, en welke enthalpie-uitwisselende eenheid ten minste één hygroscopische materiaallaag omvat die aansluit op ten minste één met het eerste vloeibare medium in contact staande contactzijde van de plaat, waarbij de onderlinge oriëntatie tussen de plaat en de materiaallaag zodanig is dat zich tussen de plaat en de materiaallaag een vloeistoffilm van het eerste medium kan vormen, waarbij de vloeistoffilm in enthalpie-uitwisselend contact staat met zowel de plaat alsook de materiaallaag, met het kenmerk, dat de materiaallaag met meerdere zich hoofdzakelijk parallel aan elkaar doorgetrokken naden aan de plaat is bevestigd, zodanig dat meerdere door de naden van elkaar gescheiden kanalen ontstaan over de contactzijde van de plaat, met als doel de mate van spreiding van het eerste vloeibare medium over de contactzijde van de plaat te vergroten en daarmee enerzijds de invloed van cohesie tussen de vloeistofmoleculen en de daarmee gepaard gaande oppervlaktespanning te verkleinen en anderzijds de invloed van de adhesie tussen het vloeibare medium en de plaat te vergroten.
Patent NL-2016748-B1 (NL)
Title: Scaffolding with rib structure
Inventor: JOHANNES BERNARDUS MARIA OCKHUIZEN
IPC: G09F19/22
Filed: 2016-05-10
Granted: 2017-11-16
Abstract: The invention relates to a scaffolding comprising multiple vertical standards that are interconnected with horizontal ledgers, horizontal braces and diagonal braces to form a rigid unity, and at least one a grid structure at a vertical main side or front side of the scaffolding, wherein the grid structure comprises a grid with elongate horizontal ribs and elongate vertical ribs in the same vertical plane that are mounted to the standards with grid couplings, wherein the grid couplings comprise a group of four rings with passages that receive and fully enclose the received part of the ribs to form the crossings of the grid.