baber/WOPTO huggingface dataset:
Patent MD-4260-B1 (MD)
Title: Cryptographically secure paper document, method for marking and method for identifying it
Inventor: PUSNEAC IURIE
IPC: G06V30/224
Filed: 2011-05-11
Abstract: The invention relates to information technologies and can be used to protect paper documents from forgery.The cryptographically secure paper document contains an identification tag, made in the form of an individual image, consisting of a plurality of perforations, randomly obtained by an electric discharge process, and a digital code. The document further contains a two-dimensional barcode, which includes information about the individual image, the digital code, the content of the document, and a digital signature.The method for marking a paper document consists in applying on it the above identification tag, its scanning with a scanning and processing storage device, compressing the scanned image, introducing into the memory of the scanning and processing device the information about the identification tag and the content of the document, signing the said information with the digital signature, conversing the signed information into a two-dimensional barcode, imprinting the obtained two-dimensional barcode on the paper document next to the identification tag.The method for identifying a paper document consists in reading the two-dimensional barcode imprinted on it with the help of a scanning and processing storage device, disclosing the digital signature using the public key, obtaining the compressed information about the identification tag, identifying the paper document by comparing the information obtained as a result of reading the two-dimensional barcode and the compressed scanned image on the paper document.
Patent NO-321130-B1 (NO)
Inventor: BAIN ALLEN I
IPC: A61K/
Filed: 2000-09-29
Abstract: Aminocyclohexyl ether compounds of formula (I), or a solvate or pharmaceutically acceptable salt thereof: <CHEM> are disclosed. In said formula, A, X and R, -R5 have the meanings given in the description. The compounds of the present invention may be incorporated in compositions and kits. The present invention also discloses a variety of in vitro and in vivo uses for the compounds and compositions, including the treatment of arrhythmia and the production of analgesia and local anesthesia.
Patent NO-315793-B1 (NO)
Inventor: BADARNEH ZIAD
IPC: B62M/
Filed: 2001-10-30
Abstract: Pedal device for rotary attachment to a pedal crank arm of physical training apparatus, e.g. a bicycle, said device comprising a first pedal rotatably attached to a pedal shaft, said pedal shaft at a free end thereof firmly attachable to said crank arm, and said first pedal having a first pedal engagement face for use in carrying out conventional training exercise. Said device is provided with a second pedal tiltably attached to said first pedal about an axis extending transversely through a longitudinal axis of said pedal shaft and parallel to said first pedal face approximately midway between an inner and an outer end thereof. Said second pedal has second pedal engagement face facing away from said first pedal engagement face and spaced from said transversely extending axis, and said second pedal is tiltable to either side relative to said first pedal by an acute angle, e.g. in the range 0-35 degrees.
Patent NO-332313-B1 (NO)
Inventor: NISATO DINO
IPC: A61P7/10
Filed: 2004-04-23
Abstract: The present invention relates to the use of irbesartan for the preparation of medicinal products that are useful for preventing or treating pulmonary arterial hypertension or pulmonary hypertension.
Patent NO-335465-B1 (NO)
Title: Multiposisjonsapparat til et verktøy
Inventor: MYRON WALTER J
IPC: E21B23/00
Filed: 2005-01-13
Abstract: En indekseringsmekanisme er lagt frem som kan plassere et verktøy i et mangfold av posisjoner mens det er nede i brønnen under påvirkning av store statiske og dynamiske krefter. I den foretrukne applikasjon kontrollerer mekanismen en bevegelig hylse på en strupeventil nede i brønnen. Den inneholder et indekseringstrekk som omfatter en pin som kan beveges i en mengde av slisser. Et stempel, tvunget til å bevege seg på langs, griper og roterer en indekshylse for å få pinnen til å gå videre til det neste J-sliss spor. En separat knast på stempelet griper et radialt motstykke på indekshylsen for å overta slagkreftene og posisjonerer ventilen istedenfor å tillate at pinnen støtter seg mot enden av slissen.
Patent NO-324144-B1 (NO)
Inventor: OLSEN BJARNE
IPC: E21B43/12
Filed: 2005-04-11
Abstract: Valve, especially for dosing inhibitors to prevent forming of hydrates in the exploration of oil and gas, or as a liquid choke. The inhibitor or liquid has a first and higher pressure upstream of the valve and a second and lower pressure downstream of the valve. The valve has a valve body with at least one orifice therethrough. The orifice has a substantially uniform diameter and an upstream inlet part. The inlet part has an enlarged diameter relative to the substantially uniform diameter of the orifice. The valve body is disc shaped with a plurality of parallel orifices placed equidistant from a rotational axis.
Patent NO-340586-B1 (NO)
Inventor: CLEMENTE PAOLO
IPC: C04B28/02
Filed: 2006-07-21
Abstract: Concrete superplasticizers obtained by terpolymerisation of monomers of monomers of formulas IV, V and VI: <CHEM> <CHEM> <CHEM>
Patent PL-150452-B1 (PL)
Title: A fungicide and a method of active matter production
IPC: C07D235/02
Filed: 1987-02-26
Abstract: Fungicidal compositions comprising as active ingredient a naphthimidazolone of formula:- <CHEM> wherein Hal represents a halogen atom; R1 represents a hydrogen atom or various hydrocarbon substituents; R2 represents a halogen atom or an alkyl or haloalkyl group; and n is 0, 1 or 2; the use of such compounds as fungicides; certain novel naphthimidazolones within formula II and their preparation.
Patent PL-156165-B1 (PL)
IPC: B66B/
Filed: 1987-04-13
Abstract: Sposób automatycznego ograniczenia
prędkości górniczej maszyny wyciągowej dla
opuszczania nadwagi, porównujący rzeczywiste
i zadane sygnały prędkości, znamienny tym,
że identyfikuje się znak momentu rozwijanego
przez maszynę wyciągową poprzez porównanie
znaku sygnału elektrycznego odpowiadającego
zadanej prędkości i kierunkowi jazdy ze
znakiem różnicy sygnału zadanego i sygnału
odpowiedzi układu napędowego i w przypadku,
gdy znak sygnału będącego wynikiem tej
identyfikacji odpowiada opuszczaniu nadwagi
włącza się układ ograniczający wartość prędkości
ustalonej poniżej wartości określonej
diagramem realizowanym przez znany regulator
jazdy.
Patent PL-159008-B1 (PL)
Title: Method of obtaining derivatives of imidazopyridazine
IPC: C07D487/04
Filed: 1988-08-12
Abstract: Compounds of general formula (I) <CHEM>  wherein R<1> represents an optionally substituted carbocyclic or heterocyclic aryl group, or an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group; R<2> represents an optionally substituted alkyl, alkenyl, alkynyl, cycloakyl or cycloalkenyl group or an optionally substituted carbocyclic or heterocyclic aryl or aralkyl group; R<3> represents a hydrogen atom or an alkyl group; and either X represents an oxygen or sulphur atom, a group -CH2- or a group NR<4> where R<4> represents a hydrogen atom or a C1-4 alkyl group; and Y represents a group -CH2- or -CH2CH2- or X-Y together represent the group -CH=CH-; and salts and physiologically functional derivatives thereof are useful in the treatment of tumours. Processes for preparing the compounds, intermediates useful in their preparation, pharmaceutical compositions containing them and their use in the treatment of tumours are also described.
Patent PL-161035-B1 (PL)
Title: Method of and wooden block for making parquet floors
IPC: E04F15/04
Filed: 1989-01-25
Abstract: 1. Method for laying parquet floors under which planks are placed on a base covered with an adhesive and their tongues and inlets are joined with each other, characterised in that when the planks (1, 2) are joined, the plank (2) is inclined at a sharp angle (α) to the base, and then is slid towards the plank (1), at the same time turning it downwards, the tongue (5) of the plank (2) may be joined with the side inlet (3) or the front inlet (4) of the plank (1) or the side inlet (3) of the plank (1) and the front inlet (4) of a third plank.2. The plank for laying parquet floor in the form of a solid wooden element with a tongue and furrowed inlets, consisting that it has a wedge-like tongue (5) profiled on one side, two front inlets (4) and one side inlet (3).<IMAGE>
Patent PL-166001-B1 (PL)
Title: Method for making ethylene/butene-1 copolymers
Inventor: MIRRA MAURO
IPC: C08F4/60
Filed: 1990-10-05
Abstract: A process is described for the preparation of ethylene-butene-1 copolymers having density values of about 0.880 to about 0.914 g/ml, for the copolymerization of ethylene and butene-1, at a high pressure and at a high temperature, in a reactor vessel or tubular reactor, in the presence of a catalyst consisting of an aluminium trialkyl and a solid catalyst component containing 0.4 to 4.0 wt% titanium on a microspheroidal magnesium chloride support, in which the titanium is present partially in the trivalent and partially in the tetravalent form. The copolymers thus obtained are used for the production of film, stamped products and mixing with other polymers.
Patent PL-167117-B1 (PL)
Title: Set of building blocks
Inventor: PIOTROWSKI ZYGMUNT
IPC: A63H33/10
Filed: 1991-05-28
Abstract: A building-blocks set made of wood, for building of modular space structures, comprises blocks (1) having at their ends through holes (5, 6) and non-through holes (7) in which pins are placed. The arrangement of holes (5, 6, 7) and dimensions of the block (1) and of the pin (9) are matched so that they make it possible to create open or compact space structures.
Patent PL-164241-B1 (PL)
Inventor: GRONOWSKA JANINA
IPC: C07C311/25
Filed: 1991-06-17
Abstract: 1. Spoóbb orzyrnijwarnia nowych suffonoamidów
o ogólnym wzorze 1, w którym X i
Y oznaczają grupę aminową lub sulfonową,
przy czym X jest różne od Y, znamienny tym,
że kondensuje się chlorek 3- (2',2'-dichloro-1 '-
etylosulfonylo)benzenosulfonylu z kwasami
diaminobenzenosulfonowymi o ogólnym wzorze
2, w którym X i Y mają podane wyżej
znaczenia, przy czym kondensację prowadzisię
w temperaturze 273 - 303 K i przy pH 3,0 - 5,0,
a produkt kondensacji wyodrębnia się znanym
sposobem lub bez wyodrębnienia poddaje dalszemu
przerobowi.
Patent PL-168069-B1 (PL)
Inventor: LEPIESZKO WIKTOR
IPC: H01F5/06
Filed: 1992-06-03
Abstract: Sposób wykonania izolacji i hermetyzacji uzwojeń
urządzeń elektromagnetycznych, zwłaszcza
transformatorów dławików i elektromagnesów klasy
F1 H, znamienny tym, że na cienkościenną tuleję (1)
izolacyjną nawija się warstwę prepregu (2), a następnie
nawija się kolejno warstwy uzwojenia (3) i izolacji
międzywarstwowej, którą jest prepreg (2) o
grubości dostosowanej do wielkości napięcia roboczego
uzwojenia, zaś zewnętrzną warstwę uzwojenia (3)
oraz czoła cewki izoluje się przez nawijanie rowingu
(4) nasyconegojednoskładnikowym termoutwardzalnym
lakierem klasy F lub H, po czym utwardzanie
prepregu (2) oraz nasyconego lakierem rowingu (4)
odbywa się bezpośrednio na nawijarce obracającej się
na niskich obrotach, przepuszczając impulsowo przez
cewkę prąd i pod wpływem impulsowego grzania
cewki prepreg (2) i rowing (4) ulega utwardzeniu
tworząc monolityczny hermetyczny blok uzwojenia
Patent PL-170853-B1 (PL)
Title: Method of obtaining sponge or pig iron
Inventor: FLOYD JOHN M
IPC: C21B11/08
Filed: 1992-09-17
Abstract: PCT No. PCT/AU92/00489 Sec. 371 Date Apr. 19, 1994 Sec. 102(e) Date Apr. 19, 1992 PCT Filed Sep. 17, 1992 PCT Pub. No. WO93/06251 PCT Pub. Date Apr. 1, 1993.A process for smelting iron-containing source material in a reactor containing a slag bath, includes generating heating and reducing conditions in at least one reducing region of the bath by injection of fuel/reductant and oxygen-containing gas by at least one top submerged lance. The source material is fed to the reactor together with additional reductant and with flux at or adjacent the at least one reducing region so as to be subjected to smelting reduction, using coal as the additional reductant. The rates of injection of oxygen and fuel/reductant are controlled to achieve required and sufficient reducing conditions by providing the injected gas with an oxygen content from about 40% to about 100% sufficient for a degree of combustion of the fuel/reductant of from about 40% to about 50%. The CO and H2 generated by the smelting operation, as well as carbon dust carried out of the bath by combustion gases, are subjected to post-combustion in the reactor, enabling efficient heating of the bath while preventing re-oxidization of the bath contents.
Patent PL-173599-B1 (PL)
Inventor: ANDERSON EDWARD
IPC: H03K3/86
Filed: 1994-08-04
Abstract: Generator impulsowy zawierający wejście synchronizujące,
wejście zezwalające, układ sterujący, układ opóźniający, przerzutnik
monostabilny, rejestr buforowy z wejściem do wpisywania danych,
wzmacniacz mocy 1 wyjście pierwsze, znamienny tym, że
wyjście układu sterującego (US) połączone jest z wejściem sterującym
(P 1) układu opóźniającego (UO 1), którego wyjście
połączonejest z wejściem (S 2) przerzutnikamonostabilnego drugiego
(PM 2), a jego wyjście połączone jest z wejściem (We 2)
wzmacniacza drugiego (WZ 2), a jego wyjście jest wyjściem drugim
(Wy 2) generatoraz tym, że wyjście układu sterującegojestteż
połączone z wejściem sterującym (P 2) układu opóźniającego drugiego
(UO 2), którego wyjście jest połączone z wejściem (We 3)
wzmacniacza trzeciego (WZ 3), ajego wyjściejest wyjściem trzecim
(Wy 3) generatora, awyjście pierwsze (1) rejestru buforowego
(R) połączonejest z wejściem programującym (WP 1) pierwszego
układu opoźniającego (UO 1), awyjście czwarte (4) rejestru buforowego
(R) połączonejestzwejściemprogramującym(WP2) drugiego
układu opóźniającego (UO 2), a wyjście (3) rejestrubuforowego
(R) połączonejestzwejściami ustawiającymi amplitudę (A) wzmacniacza
pierwszego (WZ 1), drugiego (WZ2) 1 trzeciego (WZ3), a
wyjście drugie (2)rejestrubuforowego (R) połączonejestz wejściami
(U) ustawianiaczasu trwania impulsu przerzutnikówmonostabilnych
pierwszego (PM 1), drugiego (PM 2) 1 trzeciego (PM 3)
Patent PL-171300-B1 (PL)
Title: Method of obtaining at least one metal form a mineral containing it
Inventor: EVERETT PETER KENNETH
IPC: B01F33/40
Filed: 1993-06-25
Abstract: A process for producing one or more metals from a mineral feedstock (12) is defined. The mineral is fed to a leaching apparatus (10) wherein it is contacted with electrolyte (14). The leaching apparatus has zones of decreasing oxidation potential (17, 18, 19, 20) respectively. A stream of electrolyte (14A) is removed from zone (20) and is treated to remove impurities and unwanted metals in treatment unit (25A), prior to metal recovery by electrolysis. The electrolyte after electrolysis is then returned to the leaching unit (10). A second electrolyte stream (14B) may be removed from zone (19) for recovery of additional metals. The electrolyte (14B) is treated to remove impurities and any unwanted metals in treatment unit (25B), prior to metal recovery by electrolysis. The electrolyte after electrolysis is returned to leaching unit (10). The process enables the leaching of difficult to leach minerals, including gold, and can produce one or more metals of high purity.
Patent PL-176528-B1 (PL)
Title: Antiallergic derivatives of triazolo(pyrolo, thieno or furano)azepine
Inventor: JANSSENS FRANS E
IPC: C07D491/12
Filed: 1993-11-25
Abstract: PCT No. PCT/EP93/03322 Sec. 371 Date May 8, 1995 Sec. 102(e) Date May 8, 1995 PCT Filed Nov. 25, 1993 PCT Pub. No. WO94/13681 PCT Pub. Date Jun. 23, 1994Antiallergic triazolo(pyrrolo, thieno or furano)azepines of formula    <IMAGE>  (I)  the pharmaceutically acceptable addition salts and stereochemically isomeric forms thereof, wherein each of the dotted lines independently represents an optional bond; -E-G- is a bivalent radical of formula -X-C(R1)=CH- (a-1); or -CH=C(R2)-X- (a-2); X represents O, S or NR3; R3 represents hydrogen, C1-6alkyl or C1-4alkylcarbonyl; -B=D- is a bivalent radical of formula -C(R4)=N- (b-1); or -N=C(R5)- (b-2); L represents hydrogen; C1-6alkyl; substituted C1-6alkyl; C3-6alkenyl; C3-6alkenyl substituted with aryl; or, L represents a radical of formula -Alk-Y-Het1 (c-1), -Alk-NH-CO-Het2 (c-2) or -Alk-Het3 (c-3). Compositions comprising said compounds, processes of preparing the same and intermediates in the preparation thereof.
Patent PL-176573-B1 (PL)
Title: Steel for making mining anchors
Inventor: FARYNA KRZYSZTOF
IPC: C22C38/04
Filed: 1995-09-12
Abstract: Steel for manufacturing anchors for the mining industry, composed of carbon, manganese, and max. 0.45 percent silicon by weight, max. 0.040 percent phosphorus, max. 0.040 percent sulphur, max. 0.25 percent chromium, max. 0.25 percent nickel, max. 0.40 percent copper, max. 0.05 percent molybdenum, vanadium and max. 0.018 percent nitrogen, the remainder iron and inevitable impurities, wherein it contains max. 0.27 percent carbon, max. 1.60 percent manganese and max. 0.25 percent vanadium.
Patent PL-175736-B1 (PL)
Title: Fastening means for a belt
Inventor: ROENNBERG PETER
IPC: A61F13/64
Filed: 1994-05-06
Abstract: The invention relates to a belt (1) of flexible material for use with absorbent garments, wherein the belt comprises attachment means (6, 9, 10, 11, 21, 22) securely attached at one end. The attachment means is in the form of a flexible strip of hook elements such as used for releasable hook and loop type connectors and is used for securing that one end to an outer surface of the belt. In order to provide greater comfort for the wearer the attachment means itself is located approximately centrally and extends with its greatest dimension (a) in the width direction of the belt where dimension (a) is between 25% to 75% of the belt width (z).
Patent PL-185858-B1 (PL)
Inventor: DAGGER RAYMOND E
IPC: C07D233/64
Filed: 1995-05-04
Abstract: 1. Zwiazek addycyjny kwasu 4-[(2-n-butylo-5-formylo-1H-imidazol-1-ilo)metylo]- benzoesowego z wodorosiarczynem o wzorze (I): (I) (II ) P L 185858 B 1 PL
Patent PL-176995-B1 (PL)
Title: Method of cooling and removing a monomer as well as of dedusting gases extracted from a polymer drier
Inventor: VON DZIEMBOWSKI KASIMIR
IPC: B01D53/18
Filed: 1995-09-02
Abstract: A process for cooling, demonomerizing and dedusting gas from a thermoplastic polymer drier includes directing the gas, containing thermoplastic polymer dust, monomers and water, into a packed column with a packing and washing the gas with a solvent.
Patent PL-187925-B1 (PL)
Title: Imidazolic derivatives containing compositions against hiv
Inventor: FUJIWARA TAMIO
IPC: A61K31/4439
Filed: 1997-03-14
Abstract: An anti-HIV composition comprising 2-carbamoyloxymethyl-5-(3,5-dichlorophenylthio)-4-isopropyl-1-(pyridin -4-yl)methyl-1H-imidazole or the pharmaceutical acceptable salt thereof and other one or more anti-HIV compounds is provided.
Patent PL-192748-B1 (PL)
Inventor: DEBEK CEZARY
IPC: C08G64/00
Filed: 1999-12-03
Abstract: 1. Sposób otrzymywania wielkocząsteczkowego poli(węglanu bisfenolu A) o Mv dochodzącej do 42 000 g/mol w reakcji kondesacji oligo(węglanu bisfenolu A) o Mv około 8 000 g/mol w stanie stałym w temperaturze 200-240°C, pod ciśnieniem niższym od 133 Pa, w obecności katalizatora, znamienny tym, że reakcję prowadzi się w obecności niemieszalnego, termicznie niestabilnego w warunkach reakcji poliwęglanu alifatycznego, w ilości 5-20% wagowych.
Patent PL-194449-B1 (PL)
Inventor: GAWDZIK BARBARA
IPC: C08L27/06
Filed: 2000-12-18
Abstract: Sposób otrzymywania plastyfikatów z poli(chlorku winylu) przez zmieszanie go z plastyfikatorami, stabilizatorami oraz napelniaczami i pigmentami, kondycjonowanie i obróbke plastyczna, znamienny tym, ze jako plastyfikator lub jeden z plastyfikatorów stosuje sie wieloestry kwasów karboksylowych zawierajacych w czasteczce obok estrów metylowych estry wyzszych alkoholi o wzorze ogólnym ROH, w którym R oznacza liniowa lub rozgaleziona grupe alkilowa zawierajaca od 4-11 atomów wegla w czasteczce uzyskane przez ogrzewanie produktu ubocznego w procesie otrzymywania terftalanu dimetylu, ewentualnie zwiazków wchodzacych w sklad tego odpadu, w postaci pozostajacego po wy- dzieleniu terftalanu dimetylowego z alkoholem o wzorze ogólnym R-OH, w którym R ma podane po- wyzej znaczenie, w zakresie temperatur od 100 do 220°C przy uzyciu co najwyzej 1 mola alkoholu na 1 mol grup karboksylowych i/lub estrowych zawartych w produkcie ubocznym lub wyjsciowym, ko- rzystnie przy niedomiarze molowym uzytego alkoholu wynoszacym od 0,75 do 0,99 w obecnosci kata- lizatora stanowiacego tlenek lub octan metalu z II, IV, V, VII lub VIII grupy okresowego ukladu pier- wiastków, korzystnie octanu wapnia(II), trójtlenku antymonu(VI), tlenku olowiu(II), octanu olowiu(II), octanu manganu(II) i/lub octanu kobaltu(II) lub ukladu katalitycznego zlozonego z dwutlenku olo- wiu(IV) i/lub octanu manganu(II) i octanu kobaltu(II) w ilosci 0,01 - 1% w stosunku do masy uzytych do reakcji produktów. PL PL PL
Patent PL-198995-B1 (PL)
Inventor: PAWELAK MARIAN
IPC: A23L27/14
Filed: 2001-05-13
Abstract: Przyprawa spożywcza, zawierająca sól, susz warzyw, cukier oraz wzmacniacze smaku i zapachu,
znamienna tym, że zawiera mieszaninę soli dietetycznej w ilości od 0,5 do 65% wagowych, suszu
warzyw w ilości 0,5 do 30% wagowych, ziół i korzeni w ilości 0,5 do 30% wagowych oraz cukru
i/lub maltodekstryny w ilości 0,5 do 30% wagowych z naturalnymi wzmacniaczami smaku i zapachu
w postaci hydrolizatu białkowego w ilości 0,5 do 30% wagowych, sosu sojowego w ilości 0,5 do 30%
wagowych i taumatyny w ilości 0,000001 do 0,0005% wagowych.
Patent PL-198677-B1 (PL)
Title: Gather-stitcher machine and method for producing a header index for print materials or papers which are filed by means of a gather-stitcher machine
Inventor: SCHOLTA FRIEDRICH
IPC: B42B4/00
Filed: 1999-12-23
Abstract: Gather-stitcher machine for joining and stapling a plurality of stacks of sheets of a magazine, and method for producing a thumb-tab index on magazines to be stapled by means of the gather-stitcher machine. In order to make it possible for a thumb-tab index to be machine-produced on the magazine which has been assembled together by the gather-stitcher machine, the machine is equipped with at least edge punching device arranged to the rear of a feeder guide mechanism in the transport mechanism's direction of travel, which device only produces punched-out portions in said stack of sheets in the long edges therein once the latter has been deposited.
Patent PL-211342-B1 (PL)
Title: Method of positioning an apparatus for fixedly embedding in a subgrade the structural members of erected structure and apparatus for fixedly embedding such structural members using that positioning method
Inventor: ROBERTSON IAN
IPC: E01B37/00
Filed: 2001-07-31
Abstract: Topographical reference points (8) are established and used as sites for laser measuring stations (3) which use reflectors (7) on an installation vehicle (1). Distance and angle data are transmitted (9) from the measuring station to a receiver (30) on the installation vehicle and used by a computer (31) to control the orientation in three orthogonal axes of installation arms (5) which insert saddles (2) in fresh concrete (10) Independent claims are made for equipment which uses the installation method
Patent PL-209995-B1 (PL)
Title: Sower
Inventor: GENTILHOMME GUY
IPC: A01C7/12
Filed: 2001-08-21
Abstract: The seed drill, coupled by a traction arm to a towing vehicle, has a body consisting of a wheeled front chassis (7) with furrow opening tools and a rear chassis (9) connected to it by a central coupling (17) with a vertical axis (17a) and equipped with a seed hopper and drilling implements. It also has an alignment mechanism (18) for the rear and front chassis with a pin (19) and a roller (30) that moves in a guide grooves (23) and prevents the rear chassis from pivoting relative to the front one during transportation and allows relative movement only when the drilling implements are in the ground.