baber/WOPTO huggingface dataset:
Patent FR-2777759-B1 (FR)
Inventor: VIVILLE BERNARD
IPC: B65D81/38
Filed: 1998-04-28
Granted: 2000-06-16
Abstract: A chest ( 1 ) for distributing food, the chest being provided with a vertical mast ( 4 ) on which supports ( 2 ) are fixed. The chest has lifting means for moving said mast in vertical translation, and in addition at least some of the supports are movable in rotation about an axis which coincides with the mast.
Patent FR-2786171-B1 (FR)
Inventor: GALLET PATRICK
IPC: B65G47/84
Filed: 1998-11-19
Granted: 2001-01-26
Abstract: The system comprises a vibrating table (1) from which flask like objects are transferred into a trough (4). A push rod (11), moving on a continuous belt (8) transfers the items from the trough to a smooth conveyor (12).
Patent FR-2800346-B1 (FR)
Inventor: GERON JEAN
IPC: B29C70/72
Filed: 1999-10-27
Granted: 2002-03-29
Abstract: High-quality vehicle steering wheel comprises a rim formed by a framework, a coating and a covering with a rigid shell formed of two elements and with radial ribs. Vehicle steering wheel comprises a rim formed by a framework, a coating and a covering with a rigid shell formed of two elements and with radial ribs. An Independent claim is included for the manufacture of the above steering wheel by mounting a coating on a framework and covering with a rigid coating as above.
Patent HR-P950505-B1 (HR)
Title: Cycloalkano-indole- and -azaindole derivatives
Inventor: MUELLER ULRICH
IPC: C07D471/04
Filed: 1995-09-27
Abstract: Cycloalkano-indole derivs. and aza analogues of formula (I) and isomers and salts are new. R1-C=C-R2 = phenyl, pyridyl or a gp. of formula (a), all opt. substd. by 1-3 gps. R'; R8 = H or 1-4C alkyl; R3-C=C-R4 = phenyl, 4-8C cycloalkene or 4-8 membered oxocycloalkane (all opt. substd. by 1-3 gps. R'); R' = independently halo, CF3, COOH, OH, up to 6C alkoxy carbonyl, 1-6C alkoxy, or 1-6C alkyl (opt. substd. by OH or 1-4C alkoxy); R = H, 4-12C cycloalkyl or 1-12C alkyl; A = CO or CS; X = O, S or NR9; R9 = H or 1-6C alkyl (opt. substd. by OH or phenyl); R5 = phenyl or 5-8 membered, opt. unsatd. heterocyclic with 1-3 heteroatoms (S, N and/or O), (both opt. mono- to tri-substd. by NO2, COOH, halo, CN, 2-6C alkenyl, 1-6C alkoxy or alkyl (opt. substd. by OH, COOH, 1-6C alkoxy or up to 6C alkoxycarbonyl; and/or opt. mono- substd. by OR10 or NR11R12); R10 = H, 1-6C alkyl or 2-6C alkenyl; R11, R12 = H, phenyl, 1-6C alkyl, or up to 8C acyl (opt. subst. by NR13R14); R13, R14 = H or up to 8C acyl; R7 = H; R6 = H, COOH, 1-5 alkoxy, or 1-6C alkyl (opt. substd. by OH or OCOR15); or R6+R7 = O; R<15> = phenyl (opt. mono- to tri-substd., by halo, OH or 1-5C alkyl), or 1-22C alkyl or 2-22C alkenyl (both opt. substd. by OR16); R16 = H, benzyl, triphenylmethyl or up to 6C acyl. Also claimed are intermediates of formula (II).
Patent HU-224259-B1 (HU)
Inventor: AMIT CHEN
IPC: H04M11/06
Filed: 1998-08-24
Abstract: A találmány távközlő berendezés, amelynek első xDSL-modeme, valamintPOTS-átvitelt xDSL-átviteltől szétválasztó, majd POTS-telefonvonalon(22) és xDSL-telefonvonalon (20) továbbító, hasító fokozata (50) van,valamint az első xDSL-modemmel és hasítófokozattal (50) kapcsolatottartó, előfizető telephelyén elrendezett második xDSL-modeme van,amely első xDSL-modem számos xDSL-modem (40, 42) egyike, ahol az xDSL-modemek (40, 42) egyikével inverz multiplexer (44) van adatátvitelikapcsolatban. A találmány továbbá távközlő berendezés, amelynek elsőxDSL-modeme, valamint POTS-átvitelt xDSL-átviteltől szétválasztó, majdPOTS-telefonvonalon (22) és xDSL-telefonvonalon (20) továbbítóhasítófokozata (50) van, valamint az első xDSL-modemmel éshasítófokozattal (50) kapcsolatot tartó, előfizető telephelyénelrendezett második xDSL-modeme van, amely hasítófokozat (50) számoshasítófokozat (50) egyike, amely berendezésnek továbbá POTS-multiplexere (36) van, amely a hasítófokozatokkal (50) vanadatátviteli kapcsolatban. A találmány továbbá távközlő rendszer,távoli xDSL-modemmel és PSTN-kapcsolóközponttal, amelynek a távolixDSL-modemmel legalább egy xDSL-telefonvonalon (20) és a PSTN-kapcsolóközponttal legalább egy POTS- telefonvonalon (22) átadatátviteli kapcsolatban lévő alállomása (18) van, amely rendszerbenaz alállomásnak (18) van egy, xDSL-telefonvonallal (20) összekapcsolt,legalább egyirányú átvitelre rendelt első xDSL-modeme (40), és egy,legalább másik egyirányú átvitelre rendelt, második xDSL-modeme (42),továbbá legalább egyirányú POTS- átvitelt xDSL-átviteltőlszétválasztó, majd POTS-telefonvonalon (22) a második xDSL-modemhez(42) továbbító hasítófokozata (50) van.
Patent HU-224267-B1 (HU)
Title: Procedure and system for providing a telecommunication service
Inventor: STEWEN TEEMU
IPC: G07F7/08
Filed: 1998-10-29
Abstract: A system and methods for implementing access to and control of a service in a telecommunication system utilizes a first terminal device, a control center operable for handling short messages and/or data calls, an automated apparatus includes a second terminal device and a control unit connected thereto, a telecommunication network comprising an intelligent network, the intelligent network including means for determining charge and location data and for producing voice messages, a first telecommunication connection, and a second telecommunication connection. The first terminal device, the second terminal device and the control center are connected to the telecommunication network. A product vendable or otherwise accessible or distributable through the automated apparatus is ordered by making a call from the first terminal device to a number shown on or associated with the automated apparatus or with a service to be rendered by an automated apparatus. The control unit controls the automated apparatus and the second terminal device to operatively cause the customer to receive the product or service ordered. If the automated apparatus has run out of the product or has malfunctioned, then the customer is so informed by a voice message delivered to the first terminal through the first telecommunication connection.
Patent HU-230515-B1 (HU)
Title: The use of human tnf-alpha binding antibodies
Inventor: ALLEN DEBORAH J
IPC: C07K16/24
Filed: 1997-02-10
Abstract: Human antibodies, preferably recombinant human antibodies, that specifically bind to human tumor necrosis factor α (hTNFα) are disclosed. These antibodies have high affinity for hTNFα (e.g., Kd=10−8 M or less), a slow off rate for hTNFα dissociation (e.g., Koff=10−3 sec−1 or less) and neutralize hTNFα activity in vitro and in vivo. An antibody of the invention can be a full-length antibody or an antigen-binding portion thereof. The antibodies, or antibody portions, of the invention are useful for detecting hTNFα and for inhibiting hTNFα activity, e.g., in a human subject suffering from a disorder in which hTNFα activity is detrimental. Nucleic acids, vectors and host cells for expressing the recombinant human antibodies of the invention, and methods of synthesizing the recombinant human antibodies, are also encompassed by the invention.
Patent HU-222780-B1 (HU)
Inventor: RODET ALAIN
IPC: B61C9/44
Filed: 1997-05-28
Abstract: A találmány tárgya forgózsámoly sínjárművekhez, legalább egy,egymástól független forgású kerekekkel (Ro1, Ro2) rendelkező motoroshajtású tengellyel, amely tengely egy sínjármű felépítményével (Cv)vagy átjárószerkezetével egy teherviselő kereszttartón (Tc) keresztül,vagy közvetlenül, a felfüggesztőrendszereken (Su) keresztül vanösszekötve. A találmány lényege az, hogy a forgózsámoly motoroshajtású tengelye egy lassító fogaskerék-hajtómű által képzettteherviselő tengelyszerelvénnyel rendelkezik, amely a felépítmény (Cv)vagy az átjárószerkezet súlyát felvevő oldalsó tengelyházakat (Pr1,Pr2) foglal magában, amely oldalsó tengelyházak (Pr1, Pr2) egy-egykúposan elkeskenyedő végű és a kerekeket (Ro1, Ro2) körülöttükforgathatóan ágyazó csőtengely (Tr1, Tr2) által vannakmeghosszabbítva, emellett a teherviselő tengelyszerelvény egy központitengelyházat is tartalmaz, amely egy, egyetlen motort vagy két motortegyaránt magában foglalni képes moduláris egységet képez. ŕ
Patent HU-220787-B1 (HU)
Title: Process for manufacturing hose filling products based on vegetable comprising 10-45% of weight soja without animal protein
Inventor: HELLER TIBOR GABOR
IPC: A23L7/10
Filed: 1997-09-11
Abstract: A animal protein-free, vegetable protein based, 10-45 wt.% soya protein containing sausage stuffing meat also contains a soya extract and water. A homogeneous colloidal soln. is prepd. This is mixed with tofu, soya fragments, cereal starch and/or ground cereals, cereal protein extract, and ground oil seeds, together with plant based, consistency stabilisers, salt and spices. Round casings are stuffed with an appropriate mixt. and are smoked; smoke flavour-red or cold smoked for flavour. Finally the prod. is heat-treated at 75 deg C temp. using a waterbath or steam treating chamber.
Patent JP-2916765-B1 (JP)
Title: 暗渠ブロック成形用中子型、暗渠ブロック成形用型枠、および暗渠ブロック
IPC: B28B21/04
Filed: 1998-03-13
Granted: 1999-07-05
Abstract: 【要約】
【課題】  上下分割型としたり内部に複雑な拡縮機構を 設けることなく簡単な構造であって軽量な中子型、また 低コストに製造することができるとともに装脱作業も極 めて容易であって、迅速・確実に暗渠ブロックを形成す ることのできる暗渠ブロック形成用型枠、そして構成が 簡単であるものの強度を確保し得て、しかも極めて簡単 に安価に量産することの可能な暗渠ブロックを提供す る。
【解決手段】  暗渠ブロック成形用型枠に用いられる暗 渠ブロックの水路部形成用の中子型１０を、略錐台体１ に、且つ少なくともその側壁面の一部１３が軸方向直線 状となるように形成し、該壁面を水平方向に向けて設置 する。
Patent JP-2920193-B1 (JP)
Title: 遊技装置
IPC: A63F7/02
Filed: 1998-02-23
Granted: 1999-07-19
Abstract: 【要約】
【課題】  発射球検出手段からの検出信号が有ることを 必要条件として、遊技領域内に流下する所要の球の検出 出力を有効とし、もって有効な検出出力の場合に遊技者 の持玉数データを加算できるようにする。
【解決手段】  遊技盤に形成された遊技領域に向けて発 射され該遊技領域に進入する有効発射球を検出する有効 発射球検出手段と、上記遊技領域を流下する球のうち所 要の球を検出可能な遊技球検出手段と、上記遊技球検出 手段の検出出力に基づいて制御を行う制御手段とを備 え、上記制御手段は、上記発射球検出手段からの検出信 号が有ることを必要条件として、上記遊技球検出手段の 検出出力を上記制御手段にとって有効とする遊技球検出 出力有効化手段と、上記有効発射球検出手段の検出出力 があった場合に、上記持玉数情報から導き出される遊技 者の持玉数を減算するとともに、上記遊技球検出出力有 効化手段により有効とされた上記遊技球検出手段の検出 出力に基づいて上記持玉数に所定数を加算する持玉数演 算手段とを含むように構成した。
Patent NL-1043654-B1 (NL)
Title: CoronaCoup
Inventor: SPYRIDON KYRGIOPOULOS
IPC: A41D13/11
Filed: 2020-05-15
Granted: 2022-04-05
Abstract: Couppy /Bouddy is a product to block the transmission of aerosol transmitted diseases and unsafe physical contact and thereby to secure safe interaction in accompany of others. The product made out of light and transparent material can be designed and modified according to the needs and comfort of the user. The product is used in different positions to ensure a portable Covid-19 safe personal area for the user to continue its daily activities while these requires moving, sitting or standing.
Patent NL-2014400-B1 (NL)
Title: Top loading refuse distributing and compacting device and refuse collection system.
Inventor: JACOB KOERT TIMMERMAN
IPC: B65F1/14
Filed: 2015-03-05
Granted: 2016-10-13
Abstract: A top loading refuse distributing and compacting device that is adapted to be mounted above or in the top of a refuse collection container. The device comprises a frame and an integrated duct. The device further has a refuse distributor and compactor assembly with a pivotal first compaction member that is pivotal about a horizontal pivot axis and has opposed compaction faces, and a pivotal second compaction member, that is hinged to the first compaction member and also has opposed compaction faces. This assembly is selectively movable by a drive assembly between and into first and second positions by tilting the first compaction member to the left or right to assume a first inclination, and by tilting the second compaction member to the left or right over a second tilt angle that is greater than said first inclination. In said positions the upward faces of the compaction members jointly form an inclined chute that guides refuse that is dropped into the duct towards the right-hand or left-hand side of the outlet. If the collection container has been sufficiently filled with refuse, the refuse distributor and compactor assembly compacts refuse as it is moved by the drive assembly between said first and second positions.
Patent NL-2014946-B1 (NL)
Title: Filling station and method for filling cartridges of electronic cigarettes with a liquid.
Inventor: OSCAR SLURINK
IPC: B67C3/22
Filed: 2015-06-09
Granted: 2017-01-31
Abstract: The present invention relates to a filling station for filling cartridges of electronic cigarettes with a liquid, the filling station defining a plurality of filling positions for a plurality of cartridges, the filling station being configured for simultaneously filling the cartridges which are in the filling positions, the filling station comprising: - a plurality of nozzles, wherein the nozzles are grouped in: o a first group of first nozzles and o a second group of second nozzles, - wherein each filling position is associated with a first nozzle from the first group and a second nozzle from the second group, - an up-down actuator for moving the nozzles downward into upwardly oriented filling openings of the cartridges in the filling positions in order to insert at least a first nozzle and a second nozzle into each cartridge, and - a distance actuator for changing a horizontal distance between each first nozzle and second nozzle.
Patent NL-2014953-B1 (NL)
Title: End fitting handling in a marine pipeline installation system.
Inventor: JOOP ROODENBURG
IPC: F16L1/20
Filed: 2015-06-11
Granted: 2017-02-03
Abstract: A marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser. The system comprises a pipeline guide mounted at an elevated position on the launch tower providing an arctuate guide surface in a vertical plane for guiding said pipeline from the storage reel into the firing line. The system further comprises flexible pipeline end fitting transfer mechanism adapted to transfer an end fitting on a flexible pipeline over the pipeline guide. This mechanism comprises a beam carrier, a beam carrier support device, and an end fitting handling beam. The beam has first and second ends and is longitudinally movable between first and second extension positions. The beam carrier support device and the beam carrier are adapted to establish an arctuate motion path of the beam in a vertical plane laterally offset from the guide surface of the pipeline guide. The first and second ends of the beam are each provided with at least one of: - a sheave for a winch driven cable to be connected to a respective pipeline end fitting, - a winch with a winch driven cable to be connected to a respective pipeline end fitting, - a retainer adapted to engage with a respective pipeline end fitting, an end fitting adapter connected to a respective end fitting, or a cable connected to a respective end fitting.
Patent NL-2016595-B1 (NL)
Title: Hulpmiddel voor het aantrekken van een elastisch compressiemiddel.
Inventor: ERIK JOOSTEN
IPC: A47G25/90
Filed: 2016-04-13
Granted: 2017-11-07
Abstract: Beschreven wordt een hulpmiddel voor het aantrekken van een elastisch compressiemiddel. Het hulpmiddel omvat een uit een glad materiaal gemaakt flexibel kokervormig lichaam dat in gebruik voorafgaand aan het elastisch compressiemiddel om het lichaamsdeel wordt aangebracht. Het kokervormig lichaam kan langs een verbreekbare omtreksverbinding worden gescheiden in een eerste en een tweede deel die na verbreking van de omtreksverbinding elk afzonderlijk kunnen worden verwijderd van tussen het lichaamsdeel en het aangebrachte elastisch compressiemiddel. Het hulpmiddel is voor bepaalde toepassingen eenvoudiger en handiger in het gebruik dan het bekende hulpmiddel.
Patent NL-2021624-B1 (NL)
Title: Vessel provided with a device for guiding an anchor line
Inventor: HENDRICUS DOMINICUS MULLER
IPC: B63B21/22
Filed: 2018-09-13
Granted: 2020-05-06
Abstract: A vessel 1 is provided with an stowage space 5 in which an anchor is present when it is not used. A winch device is provided in the stowage space having a chain drum 7 and an associated drum drive 8. On this chain drum an anchor chain 9 is wound. The anchor arm 3 is part of a device for guiding the anchor chain and is connected via a mounting member 11 to a side wall of the stowage space. The anchor arm is movable between an operative position A in which the anchor arm guides the anchor chain, and a stowage position D. Between the mounting member 11 and the anchor arm 3, a spring 15 is provided. This spring pushes the anchor arm in the direction towards the operational position.
Patent NL-2022401-B1 (NL)
Title: Motorized shutter assembly
Inventor: DONALD E FRASER
IPC: E06B7/096
Filed: 2019-01-15
Granted: 2019-09-13
Abstract: In one aspect, a shutter assembly includes a shutter frame and a plurality of louvers supported by the frame. The shutter assembly also includes a louver drive 5 assembly and a motor positioned within the frame. The motor is configured to rotationally drive a drive shaft extending within the frame. Additionally, the shutter assembly includes a clutch assembly rotationally coupled between the drive shaft and the louver drive assembly. The clutch assembly is configured to disengage or decouple the drive shaft from the louver drive assembly when a torque transmitted 10 through the clutch assembly exceeds a given torque threshold.
Patent NL-2023543-B1 (NL)
Title: Oxy-hydrogen gas fuel system
Inventor: IKE SCHUURMAN
IPC: C25B9/17
Filed: 2019-07-22
Granted: 2020-07-14
Abstract: An oxy-hydrogen fuel system includes a fluid vessel partially filled with distilled water with graphene powder in the distilled water. A fluid pump is connected to the fluid vessel in a circulation to circulate the distilled water and suspend the graphene powder in the distilled water. A pair of electrodes located in the interior of the fluid vessel and submerged in the distilled water. An electrical power source is connected, during use, to the pair of electrodes to generate oxy-hydrogen gas by electrolysis of the distilled water.
Patent NL-2023883-B1 (NL)
Title: Antibiotic compounds
Inventor: NATHANIEL I MARTIN
IPC: C07K9/00
Filed: 2019-09-24
Granted: 2021-04-26
Abstract: Antibiotic compounds Provided herein are lipidated glycopeptide compounds of formula I: R1\N/R2 HZNÀIÎI 3—1 HO HN H3C _ O CH 3 o % O OH O O CI,. OH HO,“ Cl OH )‚0 H 0 O H O 'l ’N I, N N HN N’JYN‘CHg R3 N-H H 0 OH 0 H = Y 0 O OH NH 2 ÔH 5 HO R4 or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof. R1 is a lipid, R2 is -H or a lipid, and R3 and R4 are as defined herein. These compounds have antibiotic activity. Also provided are formulations comprising such compounds; as well as such compounds or formulations for use as a medicament. The compounds and 10 formulations may also be used in the treatment of bacterial infection.
Patent NL-2024022-B1 (NL)
Title: Method of cultivating plants and system therefor
Inventor: PETRUS GERARDUS HENDRIKUS KAMP
IPC: A01G9/24
Filed: 2019-10-15
Granted: 2021-06-17
Abstract: A method of cultivating plants, comprising the steps of: based on a measured indication of a previous change in air flow along the plants which affects transpiration and/or based on a measured indication of water flow through the plants which affects water uptake by the plants, predicting a change in water uptake and/or watertranspiration by the plants at one or more future points in time which are ahead of the current point in time; and controlling one or more of: flow of water to the plants, flow of 002 to the plants and/or light incident on the plants, based on a predetermined smooth curve and/or and the predicted change in water uptake or watertranspiration by the plants, in such a manner that a delay of between 5 to 30 minutes in water uptake and/ortranspiration by the plants is substantially compensated for. A system comprising a greenhouse and a control apparatus for carrying out the method is provided as well.
Patent NL-2028450-B1 (NL)
Title: a wearable support structure
Inventor: COEN WILLEM JAN GREIDANUS
IPC: B25J9/00
Filed: 2021-06-14
Granted: 2022-12-21
Abstract: A wearable support structure (1) for at least partly relieving a human body (3) during walking and while said human body (3) is carrying a load at the back or the hip of said human body (3), said wearable support structure (1) comprising: - two foot attachments (5); - a load support (7) arranged to support said load while said human body is carrying said load; and - two leg structures (9), wherein each of said leg structures is connected to said load support and to a respective one of said two foot attachments, each of said two leg structures comprising: - a first pivot arrangement (11) that is attached to said one of said two foot attachments such that, during use, said first pivot arrangement is positioned behind the back of a foot of said human body and/or wherein a pivot axis (17) of a first pivot (19) of said first pivot arrangement (11) extends in a forward direction of said foot; - a second pivot arrangement (13) that is arranged for being provided, during use, at a side of a foot of said human body that is opposite said other foot of said human body and/or wherein said pivot axis (17) of said first pivot (19) of said first pivot arrangement (11) is parallel, preferably coinciding, to a bending axis of an ankle joint of said corresponding leg of said human body (3); - a rigid member (15) connecting said first pivot arrangement to said second pivot arrangement.
Patent NL-2029930-B1 (NL)
Title: Development of expressed sequence tag-simple sequence repeat (est-ssr) markers related to abelmoschus esculentus fruit colors, and kit
Inventor: TINGTING LIU
IPC: C12N15/11
Filed: 2021-11-26
Granted: 2023-06-16
Abstract: The present disclosure discloses development of a set of expressed sequence tag—simple sequence repeat (EST—SSR) markers related to Abelmoschus esculentus fruit colors, and a kit. The present disclosure provides primer sequences of 21 pairs of the EST—SSR 5 markers. In the present disclosure, simple sequence repeat (SSR) primers of differentially expressed genes (DEGs) of protein— protein interaction (PPI) are selected for screening, verification and use, to finally obtain 21 new EST—SSR markers with high typing success rate and desirable polymorphism; and the EST—SSR markers 10 are applied to genetic diversity evaluation of Abelmoschus esculentus germplasm resources. Meanwhile, in the present disclosure, molecular markers significantly related to fruit colors are mapped to provide an important tool for genetic improvement of Abelmoschus esculentus fruit colors in the future.
Patent NL-2032305-B1 (NL)
Title: Geconsolideerd droog mengsel dat granulair materiaal en bentoniet
Inventor: HUBERTUS AGNES EGIDIUS MULLENEERS
IPC: C09K17/40
Filed: 2022-06-28
Granted: 2024-01-16
Abstract: De onderhavige uitvinding heeft betrekking op een geconsolideerd droog mengsel dat granulair materiaal en bentoniet omvat. Verder heeft de onderhavige uitvinding betrekking op een werkwijze voor het vervaardigen van een dergelijk geconsolideerd mengsel, alsmede op de toepassing van een dergelijk geconsolideerd mengsel. Een doel van de onderhavige uitvinding is het verschaffen van een mengsel dat voor afdichtingen kan worden toegepast, bijvoorbeeld op de bodem van een rivier.
Patent NL-2033941-B1 (NL)
Title: Method and apparatus for controlling master and slave manipulators of minimally invasive surgery robots for digestive endoscopy
Inventor: XIAOTONG LIU
IPC: A61B34/20
Filed: 2023-01-10
Granted: 2023-10-11
Abstract: Disclosed are a Hethod and apparatus for controlling master and slave manipulators of minimally invasive surgery robots for digestive endoscopy. The method includes: acquiring a coordinate of a first position and a coordinate of a second position; 5 acquiring an angle of rotation and a displacement of each joint during the movement of a master manipulator from the first position to the second position according to the coordinate of the first position and the coordinate of the second position; taking the angle of rotation and the displacement of each joint of the 10 master manipulator as control parameters for controlling the movement of the slave manipulator; controlling the slave manipulator to move from a third position to a fourth position according to the control parameters; judging whether a first vector is the same as a second vector.