baber/WOPTO huggingface dataset:
Patent CZ-263999-A3 (CZ)
Title: Bifluorine perylene dyes
Inventor: LANGHALS HEINZ
IPC: G01N33/58
Filed: 1998-01-17
Abstract: Perylene-3,4:9,10-tetracarboxylic acid imides of the general formula I, including their optical antipodes and their mixtures, in particular their racemates wherein R1 to R14 are identical or different and are hydrogen or a radical selected from the group consisting of an unsubstituted or substituted carbocyclic aromatic radical, an unsubstituted or substituted heterocyclic aromatic radical, halogen, unsubstituted or substituted C1-C18alkyl, -OR15, -CN, -NR16R17, -COR18, -NR19COR18, -NR15COOR18, -NR15CONR16R17, -NHSO2R18, -SO2R18, -SOR18, -SO2OR18, -CONR16R17-N=NR20, -OCOR18 and -OCONHR18, where pairs of adjacent radicals can form a carbocyclic or heterocyclic ring, wherein R18 is C114 C18alkyl, C6-C10aryl, or benzyl which is unsubstituted or substituted by halogen, C1-C4alkyl or C1-C4alkoxy, or a 5- to 7-membered heterocyclic radical, R16 and R17 are each independently of the other hydrogen; C1-C18alkyl, C3- to C24cycloalkyl, C6-C10aryl or 5- to 7-membered heteroaryl, each of which is unsubstituted or substituted by cyano groups or hydroxyl groups, or wherein R16 and R17, together with at least one of the other radicals R1 to R14, are a 5- or 6-membered carbocyclic or heterocyclic ring, R15 is hydrogen, C1-C18alkyl, C3- to C24cycloalkyl, C6-C10aryl or 5- to 7-membered heteroaryl, R19 is hydrogen; C1-C18alkyl, C3- to C24cycloalkyl, C1-C4alkylaryl, each of which is unsubstituted or substituted by cyano groups, hydroxyl groups or C1-C4alkoxycarbonyl groups; C6-C10-aryl which is unsubstituted or substituted by halogen, C1-C4alkyl groups or by C1-C4alkoxy groups, or a 5- to 7-membered heterocycle, and R20 is the radical of a coupling component, or C6-C10aryl which is unsubstituted or substituted by halogen, C1-C4alkyl groups or by C1-C4alkoxy groups, as well as a process for their preparation and use.
Patent CZ-273894-A3 (CZ)
Inventor: POTOMAK VLADIMIR
IPC: B60R22/42
Filed: 1994-11-08
Abstract: Omezovač vratné síly bezpečnostního pasu na motorových
vozidlech má ve spojení mezi bezpečnostním pásem (14) a
úchytem (16) karoserie ve skříni (1) posuvné uloženy ozubenou
tyč (2), tyč (4), v ní západky (3, 6), ozubenou tyč (8)
s úkosem (9), západku (10) a talířovou pružinu (12).
Patent CZ-310495-A3 (CZ)
Title: Feeding apparatus for cattle feeding mixtures
Inventor: FAHLBUSCH KLAUS
IPC: A01K5/02
Filed: 1995-11-24
Abstract: The animal feeding system allows the animal feed mixed with a medicament soln. to be pumped to each of the feeding stations (11) via a ring line (5, 105), with overall control of all functions of the feeding system by the central control device (16) in accordance with a selected feeding programme. The mixed feed and the medicament soln. are supplied to each feed point via separate ring lines, with individually controlled feed pumps (7, 107) and feed and return valves (9, 19; 109, 110).
Patent CZ-312995-A3 (CZ)
Title: Gravel-free system of permanent way for at least one railway track
Inventor: DAHL JOHANNES DIPL ING
IPC: E01B19/00
Filed: 1995-11-27
Abstract: The system includes a concrete track plate which consists of two layers formed one on the other, and between which is located a reinforcement made of reinforcing rods which run in the track direction and at right angles to it. The concrete of the layers of the track plate is materially bonded into the reinforcement mesh. The retaining units are constructed as rail support point elements which are connected into the upper layer of the concrete track plate and are anchored in both layers by reinforcing components.
Patent CZ-316394-A3 (CZ)
Title: Apparatus for checking casting velocity
Inventor: SZADKOWSKI STANISLAV
IPC: B22D41/24
Filed: 1993-05-27
Abstract: PCT No. PCT/BE93/00029 Sec. 371 Date Jan. 18, 1995 Sec. 102(e) Date Jan. 18, 1995 PCT Filed May 27, 1993 PCT Pub. No. WO93/25334 PCT Pub. Date Dec. 23, 1993The device for controlling a pour rate according to the invention, which comprises a stationary upper plate (8), a movable plate (10) carried by a carriage (9) and a pouring tube (2). Control of the rate takes place by gliding the movable plate (10) against the upper plate (8), the pouring tube (2) being immobilized against the movable plate (10), just beneath the pouring orifice (27) of the movable plate (10) which blocks the tap hole (15). The immobilization of the pouring tube (2) with respect to the movable plate (10) is obtained by means (31) for pushing upwards which are secured to the carriage (9).
Patent CZ-360097-A3 (CZ)
Title: Heterocyclic compounds as inhibitors of leucocyte adhesion and vla-4 antagonists, and pharmaceutical composition containing thereof
Inventor: STILZ HANS ULRICH DR
IPC: C07K5/117
Filed: 1997-11-13
Abstract: Use of N-substituted pyrrolidone, imidazolidinone, oxazolidinone or thiazolidinone derivatives of formula (I), in all stereoisomer or mixture forms, or their salts is for inhibiting the adhesion and/or migration of leukocytes or inhibiting VLA-4 receptors is new. W = R1-A-CR13 or R1A-CH=C; Y = CO, CS or CH2; Z = O, S or CH2 etc.; A = 1-6C alkylene, 3-12C cycloalkylene, (1-6C), phenylene-(1-6C)alkyl, or the divalent residue of a 5- or 6-membered ring containing 1 or 2 N (optionally mono- or disubstituted) etc.; B = 1-6C alkylene (optionally substituted), 2-6C alkenylene, phenylene, phenylene-(1-3C) alkyl or (1-3C) alkylene-phenyl; D = CR2R3. NR3 or CH=CR3; E = tetrazolyl, SO3H etc.; R = H, alkyl, cycloalkyl, cycloalkylalkyl, Ar, Ar-alkyl, Het' or Het'-alkyl (where alkyl residues are optionally substituted); R1 = H, 1-10C alkyl (optionally fluorinated), cycloalkyl, cycloalkylalkyl, O or S etc.; R2 = H, alkyl, Ar, Ar-alkyl or 3-8C cycloalkyl; R3 = H, alkyl, Ar, Ar-alkyl, 3-8C cycloalkyl, alkenyl, alkynyl, alkenylcarbonyl, alkynylcarbonyl, pyridyl etc.; R13 = H, 1-6C alkyl, Ar-alkyl or 3-8C cycloalkyl; b, c, d, f = 0 or 1, but not all 0; e, g, h= 0-6; Ar = optionally substituted 6-14C aryl; Het' = optionally substituted heteroaryl; unless specified otherwise alkyl moieties have 1-8C, alkenyl or alkynyl moieties 2-8C, cycloalkyl moieties 3-12C and bi- or tri-cycloalkyl moieties 6-12C.
Patent CZ-418897-A3 (CZ)
Title: Process for preparing 2-hydroxydiphenyl-2-phosphinic acid
Inventor: RATHFELDER PAUL
IPC: C07F9/6571
Filed: 1996-06-21
Abstract: PCT No. PCT/EP96/02715 Sec. 371 Date Oct. 24, 1997 Sec. 102(e) Date Oct. 24, 1997 PCT Filed Jun. 21, 1996 PCT Pub. No. WO97/00878 PCT Pub. Date Jan. 9, 1997The invention relates to a process for the preparation of 2'-hydroxydiphenyl-2-phosphinic acid in the form of a commercial mixture with 6-hydroxy-(6H)-dibenzo-(c,e)(1,2)-oxaphosphorine, the process being carried out on a commercial scale, more simply and more cheaply than previously, as a one-pot reaction without isolating intermediate products and avoiding a distillation step, with said process comprising the steps: (a) o-phenylphenol is added to a mixture of PCl3 and a Lewis acid as a catalyst while simultaneously heating the reaction mixture, and the reaction mixture is then fluxed; (b) the resulting reaction mixture is allowed to cool and, stirring continuously, is hydrolysed, being mixed first with water and then with a low alkanol; (c) next, the product is crystallised during further stirring, and (d) the crystalline product obtained is sucked off, washed and dried. Furthermore, the invention relates to a commercial mixture thus prepared to produce copolycondensable flameproofing agents for polyester fibers by directly reacting the mixture with itaconic acid or itaconic acid compounds, optionally together with one or more diols.
Patent CZ-418998-A3 (CZ)
Title: Vaccine and process for preparing thereof
Inventor: INZANA THOMAS J
IPC: A61K35/74
Filed: 1997-06-17
Abstract: Vaccines for diseases caused by normally encapsulated organisms are produced by genetically modifying those organisms by deleting the genes encoding for capsule synthesis or a portion thereof sufficient to produce non-capsulated mutants of the organisms. As an example, a live, attenuated strain of Actinobacillus pleuropneumoniae genetically modified with a large deletion in chromosomal regions of the DNA which encodes for capsule synthesis is a safe and effective vaccine against swine pleuropneumonia.
Patent CZ-431598-A3 (CZ)
Title: Shifting mechanism of multi-speed gearbox
Inventor: SLAMA PAVEL ING
IPC: B23Q5/12
Filed: 1998-12-28
Abstract: The present invention relates to a gar shifting mechanism having a transmission shift fork (7) that is provided with at least two rolling members (9), rotatably mounted on a pin (91) attached to the transmission shift fork (7) and fitting in a peripheral groove (4) of a shiftable bush (2), whereby said  peripheral groove (4) walls are skew. A resilient ring (3) of conical shape is mounted in inner arresting groove (41) of the shiftable bush (2).
Patent CZ-431898-A3 (CZ)
Title: Reconstruction process of grate boiler to fluidized-bed boiler
Inventor: PTACEK MILAN ING
IPC: F23C10/00
Filed: 1998-12-28
Abstract: The invented reconstruction process of stoker-fired boiler to fluidized bed boiler is characterized in that a belt grate and supporting structure thereof are replaced by fluidized bed furnace with a fluidized bed tubular grate with nozzles and sand oxidative fluid bed. The fluidized bed furnace is demarcated from sides by lined airtight cooled wall and screw feeders of fuel with continuously adjustable speed of the screw replace fuel feeders. In the space of fuel pouring in fluidized bed supply of secondary combustion air is introduced for cooling the fuel screw feeder, a mixing mechanism, for transportation of fuel dust particles into the fluidized bed and for additional firing of inflammable in combustion chamber, whereby for the sand oxidative fluidized bed quartz sand with granularity within 0.5 to 2 mm is used. The embodiment of the present invention consists in that the fluidized bed grate is connected with a high-pressure fan with continuous control of transporter medium for transportation of combustion and fluidizing air into the fluidized bed. The high-pressure fan is then connected with the mixing mechanism for setting ratio of the sucked-in air into the fluidized bed and purified recycled gases being sucked in from flue duct, whereby at the boiler outlet the smoke fans are replaced by exhaust fans with continuously adjustable and controllable flow of chimney gases in order to generate a controlled vacuum inside the boiler. Above the fluidized bed furnace in the combustion chamber space there is installed a vault for separating the space with sufficient temperature for additional burning of inflammable from the combustion chamber remaining space for extension of path of the burning inflammable and its supply in places of sufficient amount of oxygen.
Patent SK-107092-A3 (SK)
Title: Sleeve for connecting of bars
Inventor: SCHIMPFF FRJITHJOF
IPC: F16B37/00
Filed: 1991-08-27
Abstract: To prevent damage in making a sleeve joint - primarily for reinforcing rods - and improve the static and dynamic bearing strength of the joint, the sleeve (1) has a gradually rising profile in the end regions (3) for the jointing of metal rods (5/1, 5/2) with conical thread cores (7) in the thread end regions (6).
Patent SK-119398-A3 (SK)
Title: Electrostatic spraying
Inventor: PRENDERGAST MAURICE J
IPC: B05B5/047
Filed: 1997-02-12
Abstract: An electrostatic spraying device contains a case (10) for electrostatic spraying material storage, an outlet (12), from which the material is disposed, high voltage generator (18), which applies high voltage to the material. The high voltage generator (18) comprise a low voltage source (20) as a response to irradiation and charge accumulation device (24) for electric charge made by the said element (s) storage.
Patent SK-124096-A3 (SK)
Title: Foodstuffs treatment method
Inventor: BATTERMANN WINFRIED
IPC: A23L29/00
Filed: 1996-09-27
Abstract: Modification of foodstuffs by addition of linear and/or branched and/or cyclic polyglycerols is new.
Patent SK-147897-A3 (SK)
Title: Azacycloalcane derivatives, preparation thereof and their applications in therapy
Inventor: BEDOYA ZURITA M
IPC: C07D209/42
Filed: 1996-04-12
Abstract: Azacycloalcane derivatives having general formula (I) wherein R1 and R2 represent a hydrogen atom, an alkyl group or a phenyl group, or R1 and R2 form together an oxo group, R3 is a hydrogen atom or an alkyl group, or R3 forms a methylene group, R4 is an aromatic group or, when R3 forms a methylene group, R4 is a phenylene group of which a carbon atom is bound to Y and another carbon atom adjacent to the former carbon atom is bound to said methylene group, R5 is either a group OR7 where R7 is a hydrogen atom or a benzyl group, or a group N4-methyl-piperazinyl, or else a group NHR8 wherein R8 is a hydroxyl, pyridinylmethyl or phenylmethyl group, A is an optionally substituted aromatic cycle, n is 1 or 2, X is CH, O or N, and Y is CH2, O or S, their preparation process and their applications in therapy.
Patent SK-158798-A3 (SK)
Title: Improved phototherapeutic methods and devices for irradiating columnar environments
Inventor: OVERHOLT BERGEIN F
IPC: A61F2/958
Filed: 1997-05-07
Abstract: The present invention provides improved methods and devices for delivering light to the surface of a biological column, for example in treatment of Barrett's esophagus using PDT. The improvement comprises the use of an extended irradiation segment or window (as seen in panel A of drawing Fig. 1). The improved methods of the present invention permit treatment lenghts of the biological column to be increased without increasing the incidence of stricture formation.
Patent SK-182016-A3 (SK)
Inventor: TYRPAK PETER
IPC: B05B1/02
Filed: 2016-02-18
Abstract: Hadica na vytvorenie vodnej steny je plochá hadica (1), na ktorej po celej dĺžke sú v zvolených rozstupoch v línii nainštalované dýzy (4). Dýzy (4) sú tvorené pevnou časťou (2), ktorá je napevno nainštalovaná do hadíc (1) a tvorí základnú časť dodávajúcu vodu kanálikom uprostred do dutiny pod hlavičkou vymeniteľných častí (3) dýz (4), ktoré dodávanej vode dávajú smer, tvar a požadovaný prietok. Vymeniteľné časti (3) sa v závislosti od požadovaných parametrov odlišujú počtom otvorov, šírkou otvorov a uhlom, ktorý navzájom zvierajú. Spojenie vymeniteľnej časti (3) s pevnou časťou (2) je realizované pomocou závitu, pričom pevná časť (2) je vybavená vonkajším závitom vo svojej hornej časti a vymeniteľná časť (3) je vybavená vnútorným závitom.
Patent SK-218792-A3 (SK)
Title: Device for holding of pipes, in particular the pipes in a power station
Inventor: LOCKAU JUERGEN
IPC: F16L3/14
Filed: 1992-07-13
Abstract: The invention relates to a retaining device for a pipe (1), especially for a pipe (1) in a power station. An articulated strut (2) connects an anchor (4), which is connected to a building structure, to a pipe clamp (5) which engages around the pipe (1). The pipe clamp (5) has a clamping yoke (6) with a pipeline bed (13), and at least one clamping loop (8). It is provided that at least two bearing surfaces, which sweep over only a part of the arc element (14), be arranged between the pipeline bed (13) and an arc section (14) of the external circumferential surface (15) of the pipe (1), resting thereon. The bedding radius of the bearing surfaces is greater than the radius of the pipe (1). <IMAGE>
Patent SK-736887-A3 (SK)
Title: Substituted imidazolyl- or 1,2,4-triazolylmethylbenzonitriles and a method for producing the same
Inventor: BOWMAN ROBERT M
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 SK-962000-A3 (SK)
Title: Emulsions of peroxyesters
Inventor: O BOEN HO
IPC: C08K5/14
Filed: 1998-06-16
Abstract: The invention relates to aqueous emulsions of peroxyesters comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 68%, and a non-ionic surfactant with an HLB value greater than 16 selected from alkylene oxide block-copolymers, ethoxylated fatty alcohols, and ethoxylated fatty acids. The emulsions are safe, storage stable, and generally applicable.
Patent BE-1003455-A3 (BE)
Title: Nouveaux derives alcoxy des ginkgolides, leur preparation et compositions therapeutiques en contenant.
Inventor: BRAQUET PIERRE
IPC: A61K31/365
Filed: 1988-10-28
Granted: 1992-03-31
Abstract: La présente invention concerne les alcoxy-1 ou alcoxy-10 ginkgolides ou des mélanges en contenant, un procédé pour la préparation de ces composés consistant à faire réagir une solution de dioxane d'un ginkgolide choisi avec une solution dans l'éther éthylique du diazoalcane en excès, à température ambiante, pendant une à dix heures; l'invention concerne également des compositions thérapeutiques contenant ces dérivés des ginkgolides.
Patent BE-1003649-A3 (BE)
Title: Turbine d'atomisation.
IPC: B05B3/10
Filed: 1990-02-27
Granted: 1992-05-12
Abstract: La turbine d'atomisation, pour la pulvérisation de matière active, se présente sous la forme d'une turbine de ventilateur à cage d'écureil (1) et ses pales (2) de forme courbe ou droite sont pourvues à leur extrémité d'une fine denture (3). A l'intérieur de la turbine (1) sont répartis d'une manière symétrique à la base des pales (2) et parallèlement à l'axe de la turbine ou un plusieurs tuyaux injecteurs fixes (4).
Patent BE-1005985-A3 (BE)
Title: Dispositif pour distribution rotative.
IPC: F01L7/18
Filed: 1992-06-10
Granted: 1994-04-12
Abstract: Dispositif pour distribution rotative comprenant des rotors 810) présentant un alésage central longitudinal (19) et des orifices latéraux d'admission (111) et d'échappement (112) ainsi que des orifices périphériques d'admission (117) et d'échappement (118), et comprenant un arbre de commande (9), avec des tronçons (92, 93, 94) de diamètres différents, qui est agencé à coulissement dans l'alésage (19). Le dispositif comprend à la surface latérale (11, 12) de chaque rotor (10), des premiers, resp. seconds moyens (30, 40, 50) pour couvrir partiellement et de manière réglable les orifices latéraux (111, 112), resp. périphériques (117, 118). Lesdits moyens (30,. 40, 50) sont agencés de manière à coopérer avec les tronçons (92, 93, 94) de l'arbre (9).
Patent BE-1006112-A3 (BE)
Title: Mur assemble et procede de construction du mur.
IPC: E02D29/02
Filed: 1992-08-07
Granted: 1994-05-17
Abstract: Mur assemblé constitué de premiers éléments de construction (4) agencés par rangées superposées (29, 2, 3) et prismatiques avec deux surfaces d'extrémité (21, 22) et une surface périphérique et constituée d'une surface de base (7) et de sommet (9) et de deux surfaces latérales (12) reliant chacune les surfaces de base (7) et de sommet (9), dans lequel la surface de base (7) présente une forme concave et la surface de sommet (9) une forme convexe, lesdites surfaces de base 87) et de sommet (9) de premiers éléments de construction (4) superposés éatne mutuellement adaptées de manière à permettre un emboîtement.
Patent BE-1008456-A3 (BE)
Title: Werkwijze ter vervaardiging van een gasdiffusie elektrode.
Inventor: DIRVEN PAUL
IPC: H01M8/1004
Filed: 1994-06-07
Granted: 1996-05-07
Abstract: Werkwijze ter vervaardiging van een gasdiffusie elektrode waarbij men op een poreuze hydrofobe drager (8) tenminste een laag sproeit of verstuift van een vloeistof (7) die aktieve deeltjes en een bindmiddel in een oplosmiddel bevat, daardoor gekenmerkt dat men sproeit of vernevelt onder toevoer van warmte aan de gesproeide of verstoven vloeistof zodat het oplosmiddel gedeeltelijk is verdampt vooraleer de drager (8) is bereikt.
Patent BE-1010193-A3 (BE)
Title: Encodeer-inrichting voor het encoderen van een programma en opteken-inrichting.
IPC: H04N19/177
Filed: 1996-04-17
Granted: 1998-02-03
Abstract: Bij het omzetten van een programma met een bepaalde tijdsduur in gecomprimeerde data (encoderen) is het gewenst dat de totale hoeveelheid data binnen een beschikbare data-ruimte past, bijvoorbeeld bij optekening op een informatiedrager. In het bjzonder bij variable variable bitrate compressie, zoals een videosignaal via MPEG-2, is dit moeilijk vooraf voorspelbaar. Daartoe is een opteken-inrichting volgens de uitvinding voorzien van een compressie-eenheid (22), waarvan tijdens het encoderen de bitrate via een stuuringang (26) beïnvloed wordt door een systeemsturing (45) in afhankelijkheid van de resterende beschikbare dataruimte op de informatiedrager (1) en de resterende tijdsduur van het programme. Bij het instellen van parameters in de compressie-eenheid (22), welke van invloed zijn op de bitrate, kan de systeemsturing rekening houden met de daadwerkelijk opgetreden bitrate in een reeds ge-encodeerd deel van het programma. Verder is ook een aparte encodeerinrichting beschreven ingericht voor het ontvangen van tijd-informatie en dataruimte-informatie, en het in afhankelijkheid hiervan besturen van de bitrate van een compressie-eenheid (22).
Patent BE-1011121-A3 (BE)
Title: Inrichting en werkwijze voor het bepalen van de positie van een punt.
IPC: G01B11/24
Filed: 1997-04-21
Granted: 1999-05-04
Abstract: De uitvinding heeft betrekking op een werkwijze en een inrichting voor het bepalen van de positie van een punt, waarbij men gebruik maakt van een houder (1) met een meetpunt (6) en minstens drie referentiepunten (2,3,4) waarbij men genoemd meetpunt (6) tegen het punt, waarvan de positie dient bepaald te worden, plaatst, men de positie van genoemde referentiepunten (2,3,4) vervolgens opmeet en de positie van genoemd punt berekent, waarbij men gebruik maakt van een houder (1) waarvan de positie van genoemd meetpunt (6) bepaald wordt door dit laatste op een vaste plaats te houden, de houder (1) in verschillende standen te roteren, vervolgens de posities van de referentiepunten (2,3,4) voor minstens twee standen van de houder (1) op te meten en uit de posities van deze referentiepunten (2,3,4) de positie van het meetpunt (6) ten opzichte van de referentiepunten (2,3,4) te berekenen.