baber/WOPTO huggingface dataset:
Patent CZ-288568-B6 (CZ)
Title: Lecirelin polymeric conjugates with protracted activity and use thereof
Inventor: ULBRICH KAREL ING CSC
IPC: A61K47/62
Filed: 1998-03-27
Abstract: In the present invention there are disclosed polymeric conjugates of lecirelin exhibiting protracted activity of the general formula I, in which P represents a polymer, LEC represents lecirelin and X is either {alpha} or {epsilon} amino acid or an oligopeptide. The invented conjugates consist of a polymeric carrier containing 30 to 1000 monomer units being coupled in a polymeric chain and from which amount 60 to 98 percent of units are N-(2-hydroxypropyl)methacrylamide units, 0 to 38 percent of units are acrylic or methacrylic acid units in the form of sodium salts thereof and 1 to 40 percent of units are methacryloylated {alpha} or {epsilon} amino acid or an oligopeptide units with a terminal lecirelin being attached by covalent bond. The present invention comprises use of the polymeric conjugates of lecirelin exhibiting protracted activity as veterinary medicines for influencing reproduction cycle of domestic animals, as a preparation for influencing growth and ripening of ovarian fo
Patent SK-283425-B6 (SK)
Title: 8-azabicyclo[3.2.1]oct-2-ene derivatives, their preparation and use
Inventor: MOLDT PETER
IPC: A61P3/04
Filed: 1996-10-11
Abstract: A compound having formula (I) or any of its enantiomers of any mixture thereof, or a pharmaceutically acceptable salt thereof; wherein R is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or 2-hydroxyethyl; and R4 is phenyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, CN, alkoxy, cycloalkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, amino, nitro, heteroaryl and aryl; 3,4-methylenedioxyphenyl; benzyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, CN, alkoxy, cycloalkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, amino, nitro, heteroaryl and aryl; heteroaryl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, CN, alkoxy, cycloalkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, amino, nitro, heteroaryl and aryl; or naphtyl which may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, CN, alkoxy, cycloalkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, amino, nitro, heteroaryl and aryl. The compounds possess valuable pharmaceutical properties as monoamine neurotransmitter re-uptake inhibitors.
Patent SK-281554-B6 (SK)
Inventor: DAULOUDET ANDRE
IPC: A23C19/028
Filed: 1994-11-02
Abstract: Pri spôsobe výroby mliečnych výrobkov z kvapalného retentátu, pochádzajúceho z ultrafiltrácie mlieka, sa retentát podrobuje konvenčným spôsobom zreniu a homogenizácii. Homogenizovaný retentát sa podrobuje pôsobeniu tlaku, stlačený retentát sa vystavuje pôsobeniu väčšieho počtu smerových otvorov na prevedenie kvapalného retentátu na koagulovaný gél, tento gél sa podrobuje expandovaniu, expandovaný gél sa prevádza na homogénnu pastu, ktorá je v podstate zbavená kvapaliny, hneď potom sa táto pasta vytvaruje a krája na časti. Pri zariadení na výrobu mliečnych výrobkov potom s cieľom dosiahnuť prechod z kvapalnej fázy na pevnú fázu prechádza retentát alebo kvapalná syrovina aspoň jedným ústrojenstvom (8), vytvoreným v tvare dosky, vybavenej väčším počtom otvorov (9).ŕ
Patent SK-280464-B6 (SK)
Title: Catalysts with highly dispersed active components, and process for producing these catalysts
Inventor: FETZER THOMAS
IPC: B01J23/00
Filed: 1994-01-13
Abstract: Catalysts are produced by combining M-Al2O4, in which M stands for an element of the I, VII and VIII secondary groups of the periodic table of elements, with tin, lead, an element of the II main or secondary group of the periodic table of elements, as an oxide or salt or in its elementary form, and by calcinating them at temperatures from 300 to 1300 degrees Celsius and pressures from 0.1 to 200 bars.
Patent SK-282589-B6 (SK)
Title: Method of fractionation of royal jelly and isolation of the prote in complex of the royal jelly, pharmaceutical and cosmetic prepar ation containing protein complex
Inventor: SIMUTH JOZEF
IPC: B01D15/08
Filed: 1998-06-01
Abstract: The solution relates to the method of the fractionation of the royal jelly and isolation of the protein complex with molecular weight from 49 to 66 kDa. Royal jelly, optionally its mixture with water and/or glycerol, is divided by ultracentrifugation under 20,000 to 300,000x g to the individual fractions, jelly fraction is mixed with water and by repeated centrifugation is isolated the protein complex as a sedimented jelly with the contents of water from 60 to 80 wt. %, which contains 96 to 98 wt. % of the mixture of proteins with molecular weights 49, 55, 60 and 66 kDa with variable proportional representation. The royal jelly is by ultracentrifugation under 150,000 to 300,000x g divided into three fractions, liquid, jelly and semi-solid; the mixture of the royal jelly with water and/ or glycerol is by ultracentrifugation under 150,000 to 300,000x g divided into two fractions, liquid and jelly, whilst the ultracentrifugation is realized under 250,000x g during 40 to 200 minutes under the temperature not extending 15 °C.
Patent CZ-280301-B6 (CZ)
Inventor: PRETSCH GERHARD ING
IPC: B21B27/06
Filed: 1992-05-19
Abstract: Zařízení je tvořeno příčně rozříznutým závitovým  kroužkem (1) uloženým na šroubu (4) hřídele  válcovací stolice. Dělicí spára závitového  kroužku (1) je překryta krytem (5) uchyceným na  jedné straně dělicí spáry. Tato je překryta  tažnou pružinou (7).ŕ
Patent CZ-279026-B6 (CZ)
Title: Process for preparing tolunitriles substituted by heterocyclic radical
Inventor: BOWMAN ROBERT MATHEWS
IPC: A61K31/14
Filed: 1987-03-06
Abstract: Heterocyclylalkylbenzonitrile derivs. of formula (I) and their salts are new (where R, R' = H or 1-7C alkyl; or R+R' when on adjacent C atoms, together with the benzene ring form a naphthalene or tetrahydronaphthalene ring system; R1 = H; R2 = H, 1-7C alkyl, 2-7C alkenyl, aryl, aryl-(1-7C)alkyl, 3-6C cycloalkyl or (3-6C)cycloalkyl-(1-7C)alkyl; or R1+R2 = 1-7C alkylidene opt. substd. by mono- or di-aryl, or 4-6C n-alkylene, n-alkylene substd. by 1-7C alkyl or 2-4C n-alkylene bridged by o-phenylene, to form with the attached C a corresp. opt. substd. or benzo-fused 5-, 6- or 7-membered ring; W = 1-imidazolyl, 1,2,4- or 1,3,4-triazol-1-yl or 3-pyridyl each opt. substd. by 1-7C alkyl). 1-Cyano-4-imidazolylnaphthalenes of formula (II) and their salts are new (where R1' = H; R2' = H, 1-7C alkyl, Ph, 1-7C alkylthio, Ph-(1-7C)alkylthio, PhS, pyridyl, thienyl or benzyl, or Ph, Ph-(1-7C)alkylthio, PhS or benzyl each ring mono-substd. by CN, 1-7C alkyl, 1-7C alkoxy, OH, 1-7C alkanoyloxy, aroyloxy, NO2, halogen, CF3, 1-7C alkanoyl, aroyl, 1-7C alkylsulphonyl, or CONH2 or SO2NH2 both opt. substd. by 1 or 2 1-7C alkyls; or R1'+R2' = 1-7C alkylidene, benzylidene, diphenylmethylidene or 4-6C n-alkylene; R3 = H or 1-7C alkyl).
Patent CZ-280959-B6 (CZ)
Inventor: SCHOLDAN DETLEF DIPL ING
IPC: B61H13/20
Filed: 1990-05-16
Abstract: Ve vedení (16) ložiska dvojkolí (2) je uspořádáno odvažovací ústrojí (17), které je spojeno  prostřednictvím přenášecího orgánu (30) se spínacím ústrojím (15). Odvažovací ústrojí (17) je opatřeno talířovou pružinou (22) a dorazem (23). Ve spínacím ústrojí (15) je uspořádána posuvná součást (32) uložená posuvně v ložisku (31)  upevněném na rámu (1) podvozku. Na koncích posuvné součásti (32) je přikloubena svislá páka  (5) špalíkové brzdy a vahadlová páka (9) kotoučové brzdy a mezi těmito konci je vytvořena  drážka (33). Do vybrání (34) ložiska (31) je uložen ozub (36) ozubové páky (35), která je  svým volným koncem výkyvně uložena na čepu (37). Bezprostředně vedle tohoto uložení je připojen přenášecí orgán (30), například bowdenové lanko. Toto spojení je provedeno prostřednictvím vložené, pružně zatížené a výkyvně uspořádané vyrovnávací páky (38).ŕ
Patent CZ-284693-B6 (CZ)
Inventor: PITSCHMANN VLAD
IPC: G01N21/25
Filed: 1992-10-14
Abstract: Souprava pro analytickou kontrolu průmyslových škodlivin složená z univerzálních trubičkových detektorů a kapsulovaných činidel, která se před testováním rozpustí a roztokem se nasytí vrstva sorbentu detektoru, která se při reakci s průmyslovou škodlivinou charakteristicky zbarví. Souprava obsahuje činidlo ke stanovení chlóru a oxidů dusíku, tvořené kapsulovaným redoxním indikátorem aminového typu, např. o-dianizidi- niumchloridem a rozpuštědlem, např. vodou, činidlo ke stanovení sulfanu, oxidu siřičitého a kyanovodíku, tvořené kapsulovaným organickým disulfidem, např. kyselinou 5,5-dithiobis(2-nit- robenzoovou) a rozpouštědlem dimethylsulfoxidem, činidlo ke stanovení sirouhlíku, tvořené kapsulovanou amonnou solí nebo aminem, např. octanem amonným, činidlo ke stanovení oxidu siřičitého, tvořené kapsulovanou kyselinou 2,4,6-trinitrobenzoovou, kapsulovanou amonnou solí nebo aminem, např. octanem amonným podle nároku 4 a rozpouštědlem směsí dimethylsulfoxid-vodŕ
Patent CZ-277822-B6 (CZ)
Title: Method of treating fibers for yarn spinning and apparatus for making the same
Inventor: JACOBSEN ALAN NICHOLAS
IPC: D01H1/00
Filed: 1986-06-06
Abstract: A method of forming a fibre assembly to be spun to form a yarn. The separated fibres are entrained in an air stream (61) and delivered in a tangential direction into a converging annular passage (64). The fibers are straightened in their travel through the passage (64) and issue as a peripheral curtain into a fibre collection zone (67), where the fibres merge to form a coaxial with the passage (64), and are shed from the airstream which is diverted to be withdrawn rearwardly from the fibre collection zone (67). The cohered fibre assembly is withdrawn forwardly from the collection zone to be spun to form a yarn.
Patent CS-277568-B6 (CS)
Inventor: CERVENY JINDRICH
IPC: C23C2/14
Filed: 1988-06-22
Abstract: Zařízení k mechanickému odstraňování nálitků
z vnitřního povrchu pozinkovaných ocelových
trubek tvořené nožovým tělesem s táhlem, u
kterého je nožové těleso (2) rotačního tvaru s
vnějším povrchem ve tvaru válcové plochy (7),
na jeho čele je vytvořeno ostří (8) k seřezávání
nálitků při pohybu nožového tělesa (2) po
vnitřním povrchu trubky (1), přičemž průměr
ostří (8) je menší než průměr válcové plochy (7)
Patent CZ-285017-B6 (CZ)
Inventor: MORITZ CLAUS JURGEN DIPL-ING
IPC: B22D41/16
Filed: 1994-07-01
Abstract: Vtokový systém zařízení pro plynulé lití hliníku sestává z licího žlábku (1), ve kterém je vsazena vtoková tryska (2) opatřená zátkou (3) pro regulaci vtoku taveniny (4) nebo z regulačního systému, kterým se řídí v závislosti na stavu hladiny taveniny (4) v kokile (5) ve vymezeném rozmezí hloubka ponoru zátky (3) ve vtokové trysce (2).
ŕ
Patent CZ-288104-B6 (CZ)
Title: Arrangement for connecting pipes
Inventor: BLASS JUERGEN
IPC: F16L37/084
Filed: 1995-06-28
Abstract: The invented arrangement for connecting pipes, shaped bodies and the like elements has a socket body (2) intended for insertion into a pipe (12), with a holding-down ring (14) having gripping claws (16) for axial securing of the pipe (12) end, further a sealing ring (10) being arranged in a recess (8) of the socket body (2) and a ring-shaped body (30) at least partially encompassing the socket body (2). The holding-down ring (14) is arranged outside the recess (8) and the socket body (2) is encompassed thereby at least in the recess (8) area, and whereby the gripping claws are arranged with respect to the sealing ring (10) on outer side. The holding-down ring (14) is axially secured through the mediation of the socket body (2) free end, and opposite inner bearing surface (46) of the ring-shaped body (30). The socket body (2) is stabilized through the mediation of the holding-down ring (14) encompassing thereof in the region of the recess (8) with the sealing ring (10) serving for radial support thereof.
Patent CZ-289359-B6 (CZ)
Title: Sound-absorbing covering and process for producing thereof
Inventor: HOFFMANN MANFRED
IPC: B60R13/08
Filed: 1994-12-22
Abstract: The invented sound-absorbing covering consists of a shaped cover layer (3), particularly a carpet layer, on the rear side (2) of which (2) there are coupling areas for lining modules (4, 5, 6) and optionally for weighting layers (7, 8, 9), and acoustic springs, such as foam of the lining module (4) or non-woven fabric of the lining module (5, 6), and namely in connection with other technical, acoustically ineffective modules for achieving a multiple functionality. The acoustically ineffective modules can be represented for example by electronic elements, electric and mechanic receptacles and air ducts. The modules (4, 5, and 6) are coupled with the rear side (2) of the cover layer (3) preferably by means of releasable connections. Process for producing the invented sound-absorbing covering comprises four following steps: forming and shaping a cover layer (3); forming and shaping a plurality of lining modules (4, 5,6); applying attachment elements to said lining modules (4, 5, 6) and said cover layer (3) or covering an upper side of said lining modules (4, 5, 6) and a rear side of said cover layer (3) with a releasable coating and; assembling the covering by application of said lining modules (4, 5, 6) on to the rear side of said cover layer (3) and adherently bonding the same.
Patent CZ-296124-B6 (CZ)
Title: Detergent composition suitable for use in hand dishwashing
IPC: C11D3/30
Filed: 1997-12-12
Abstract: In the present invention, there is disclosed a detergent composition suitable for use in hand dishwashing, said composition comprising: a) an effective amount of low molecular weight organic diamine having a pKl and a pK2, wherein the pKl and the pK2 of said diamine are both in the range of from 8.0 to 11.5; and b) from 0.5 to 90 percent by weight of an anionic detersive surfactant; wherein the pH of the invented detergent composition (as measured as 10 percent aqueous solution) is from 8.0 to 12 with the proviso that the organic diamine is not 1,3-propane diamine and 1,4-butane diamine. The invented detergent composition suitable for use in hand dishwashing has improved grease removal performance and benefits in sudsing, improved low temperature stability properties and dissolution properties.
Patent CZ-290503-B6 (CZ)
Title: Four-wheeled small tractor with height and ground wheel gauge adjustment and with remote control
Inventor: MISAR JAROMIR ING
IPC: B60B35/12
Filed: 1998-11-13
Abstract: On the invented four-wheeled small tractor frame /1/ there are fastened spring-loaded swing arms /6, 7/ that are in turn attached to swinging hydraulic cylinders /2, 3/ serving for swinging the swing arms /8, 9/. In the center of said swing arms /8, 9/ there are rotatably mounted shafts /12, 13/, which are coupled by their first ends with a gear box /20/ output shaft /18, 19/ while the other ends thereof are fixedly coupled with toothed wheels /21, 22/. Said toothed wheels /21, 22/ communicate with toothed wheels /23, 24/, which are coupled with splined shafts /25, 26/ on which there are slidably mounted ground wheels /27, 28/. Said ground wheels /27, 28/ disks are provided with fixedly fastened nuts /31, 32/ through which pass motion screws /29, 30/ that are operable by means of a hand crank /35/. An actuator /36/ is controllable by a remote control /37/ through the mediation of picture cameras /38, 39, 10/ and monitors /41, 42, 43/.
Patent CZ-283343-B6 (CZ)
Inventor: KOSTAL BRETISLAV ING
IPC: F41B15/04
Filed: 1996-12-23
Abstract: Elektrický paralyzér sestává z rukojeti (1), ve které je uspořádán zdroj (6) stejnosměrného proudu a elektrické obvody (11), propojené přes pojistný vypínač (8) a elektrickou spoušť (9) s vysokonapěťovou cívkou (3), která je uspořádána v hlavici (2), jejíž součástí jsou nejméně dvě směrem ven orientované elektrody (4, 5), které jsou opatřeny směrem k sobě navzájem orientovanými přeskokovými elektrodami (41, 51) a propojeny s vysokonapěťovým vinutím vysokonapěťové cívky (3). V rukojeti (1) je uspořádán zásobník pro tekutinu a na hlavici (2) a/nebo v hlavici (2) je uspořádána tryska (52), propojená s tímto zásobníkem. V zájmu rozšíření účinků a doplnění funkcí tohoto elektrického paralyzéru při zachování ovládání jedinou rukou je zásobník tvořen obranným sprejem (12) s elektricky nevodivým obsahem, jehož výstupní trubička (132) je přes sprejovou spoušť (13) propojena se spojovacím kanálkem (14) vedoucí k trysce (52). Tryska (52) může být uspořádána v jedné z elektrod (4, 5) a být orientoŕ
Patent SK-281156-B6 (SK)
Title: Window, door and similar opening filling
Inventor: WASSONG ANTON
IPC: E06B3/984
Filed: 1995-10-03
Abstract: The window, door or similar has an outer arch frame, to which is fixed a panel or pane frame, which is pivotable and/or tippable, via fixtures. The side rails of both frames comprise fully profiled frame profiles (2) cut at both ends and the corner connections are formed by two angularly abutting frame profiles with inner-engaging tenons (16). The tenons (16) of the frame profiles of the two frames exclusively extend over the central core (14) area located between the stops (6, 7). The distances of the core (14) areas from the inner and outer surfaces (18, 19) of the frame profiles are equal and the number of tenons (16) of one side of each frame side rails is odd.
Patent SK-278662-B6 (SK)
Title: Crystal leadless glass with refractive index higher than 1,52
Inventor: RADA MIROSLAV
IPC: C03C3/095
Filed: 1993-12-01
Abstract: This patent describes leadless glass having the refractive index value greater than 1,52 contains 50 up to 75 weight percent of silicon dioxide, 0,05 up to 10 weight percent of aluminium oxide, 0,05 up to 15 weight percent of zirconium (IV) oxide, 0,001 up to 6 weight percent of magnesium oxide, 0,001 up to 2,5 of hafnium dioxide, titanium (IV) oxide, 2 up to 9 weight percent of calcium oxide, 0,05 up to 10 weight percent of zinc oxide, 01 up to 10 weight percent of potassium oxide, 5 up to 16 weight percent of sodium oxide, 0,05 up to 2,5 of antimony (III) oxide and the total iron content, represented by iron (III) oxide, is expressed by the value closed to the interval of 0,005 up to 0,035 weight percent, while this glass contain the components as follows: 0,0001 up to 1,25 weight percent of sulphates (SO42-) and chlorides and 0,000005 up to 0,8105 weight percent of at least one component closed to the group containing erbium oxide, neodymium sesquioxide, cerium dioxide, manganese oxides and selenium compounds. However, the sum closed to all of the above mentioned components is 99,6 weight percent minimum.
Patent SK-278371-B6 (SK)
Title: Dividing method of l-(-)- and dl-(±)-ephedrine mixture with high contents of racemate
Inventor: JAKL VLADIMIR
IPC: C07C215/30
Filed: 1991-08-02
Abstract: The separation of the mixture closed to L-(-)- and DL-(±)-ephedrine chlorides is provided based on the such procedure, that the mixture crystalline ephedrine chloride is attacked by the diluted ammonium solution and after that the separation of ephedrine in the form of created free bases is observed, while crystalline DL-(±)-ephedrine and L-(-)-ephedrine remaining in the solution, is produced as a result of that.
Patent SK-286400-B6 (SK)
Title: Method for production of 2-hydroxyethylhydrazine
Inventor: KOMORA LADISLAV
IPC: C07C243/00
Filed: 2004-02-02
Abstract: Described is a method for production of 2-hydroxyethylhydrazine with reaction of ethylene oxide and hydrazine hydrate in excess of 4 mole hydrazine hydrate per 1 mole ethylene oxide. Ethylene oxide is batched to hydrazine hydrate or aqueous solution thereof in rate from 0.01 to 1.00 parts by mass/h of ethylene oxide per 1 part by mass of hydrazine hydrate. Batching rate of ethylene oxide is reduced at rising of reaction mixture temperature to 80 °C and is elevated at decreasing temperature under 40 °C. Volatile portions of water and hydrazine hydrate are separated by vacuum distillation and 2-hydroxyethylhydrazine is isolated.
Patent CZ-296379-B6 (CZ)
Title: Reprocessing process of waste polyethyleneterephthalate by thermal decomposition thereof
Inventor: KUSY JAROSLAV
IPC: C08J11/04
Filed: 2005-03-16
Abstract: The process according to the present invention is characterized by heat treatment of waste polyethyleneterephthalate within a pyrolysis furnace in absence of air wherein the resulting products of such a process are a mixture of terephthalic and benzoic acids and further carbon of extremely high purity. The terephthalic acid is then separated from the mixture by employing suitable separation procedures and can be recycled for the preparation of new polyethyleneterephthalate, optionally used for the synthesis of other products of organic chemistry. After being separated and additionally purified, the benzoic acid can be used for organic syntheses. The extremely pure carbon (90 to 95 percent) can be used in various industrial branches as a reducing or carburizing agent.
Patent CZ-305871-B6 (CZ)
Title: Cylinder lock with flat key
Inventor: HOLDA JIŘÍ
IPC: E05B31/00
Filed: 2009-12-09
Abstract: In the present invention, there is disclosed a cylinder lock with a flat key consisting of a cylinder core (2) with a key channel (21), located in a cylindrical cavity of a casing (1), where there are located in bore holes and in a line one after other sprung locking pins (11) bearing on adjusting pins (23), mounted within the core (2) and controlled by a first coding (31) on the first narrow side of the flat key (3). The second coding (32) on the other narrow side of the key (3) control first faces of sickle-like lamellas (4) mounted slidably in arched grooves (24) performed in the core (2) circumference and pressed into contact with the second coding (32) by a spring (44) having its other end supported by the core (2). The sickle-like lamellas (4) are provided on their outer circumference with an unblocking recess (41) for radial inserting of a longitudinal blocking bar (26), mounted radially extensible in the core (2) and communicating with a longitudinal blocking groove (13), performed in the casing (1) cylindrical cavity. The invention is characterized in that on the sickle-like lamella (4) inside diameter, there is performed a mount (42) engaging with one end of the spring (44) the other end of which is located within the core (2) recess (27). At the same time, the recess (27) is represented by a blind bore hole, the axis of which is parallel to the axis of a shaft (22) for the adjusting pin (23), and opens into the arched groove (24).
Patent CZ-304349-B6 (CZ)
Title: Two-stroke spark ignition engine
Inventor: NOVOTN ZDENĚK
IPC: F01L1/38
Filed: 2011-02-28
Abstract: In the present invention, there is disclosed a two-stroke spark ignition engine with through-flow scavenging being provided with exhaust valves (7), an injection nozzle (5) and a spark plug (6) in cylinder (2) head. A casing (4) being rotatably mounted on the engine cylinder (2) interconnects via throttling bores (10) arranged on the casing (4) circumference and via by-pass holes (11) performed on the cylinder (2) circumference a supply space (9) with a compression chamber (12) of the engine cylinder (2). The by-pass holes (11) are round and regularly spaced along the cylinder (2) circumference in several rows one above other, whereby the individual rows of the holes (11) are angularly offset relative to each other such as being successively opened during turning of the casing (4) with triangular shape of the throttling bores first the bores of the lower row and finally the bores of the upper row, or the by-pass holes (11) and the throttling bores (10) are identical a have the shape of a rectangle.