baber/WOPTO huggingface dataset:
Patent WO-9421877-A1 (WO)
Title: Einrichtung zur sicherung von einen zugang verschliessenden mitteln
Inventor: KNUESEL ROGER
IPC: E05B47/00
Filed: 1994-03-25
Abstract: Bei einen Zugang verschliessenden Mitteln wie Fenster, Fensterläden, Rolladen und/oder Türen von Gebäuden, oder Deckel, Türen und/oder Schubladen von schrankförmigen Elementen, die mindestens einen zu öffnenden und zu schliessenden Teil (7) und einen Rahmenteil (4) afuweisen, ist eine Einrichtung (1) zur Sicherung gegen gewaltsames Öffnen angebracht. Diese Einrichtung (1) besteht aus einer Riegelhalterung (3), die am Rahmenteil (4) befestigt ist und mit einem in eine verriegelte und eine entriegelte Position bringbaren Riegel ausgestattet ist und einem Riegelaufnahmeteil (8), welcher am Teil (7) befestigt ist und mit der Riegelhalterung (3) zusammenwirkt. Der Riegelaufnahmeteil (8) ist beim Aufdrücken des Teiles (7) bezüglich der Riegelhalterung um ein vorbestimmtes Maß (a) mindestens in Öffnungsrichtung des Teiles (7) innerhalb von Endlagen bewegbar. Die Endlagen des Maßes (a) sind durch Überwachungsmittel überwacht. Die Überwachungsmittel geben bei Erreichen der Endlagen ein Signal ab, welches eine Alarmeinrichtung (42) aktiviert.
Patent WO-0072082-A1 (WO)
Inventor: XU SHUXIANG
IPC: G02C7/14
Filed: 2000-05-22
Abstract: The present invention relates to a spectacle for the person to watch something close-up, of which the optical unit of the spectacles comprises of a lens and a certain number of prisms having bottom surfaces toward the nose integrally. The optical unit is made by informing integrally with molding optical thermoset or thermoplastic resin, hardening and coating film for anti-reflect. The power of the optical unit is showed by the diopter of lens D and diopter of prism Δ.
Patent WO-03101974-A1 (WO)
Title: Derives d'aralkyle-alcool piperazine et leurs utilisations comme antidepresseur
Inventor: LI JIANQI
IPC: C07D295/088
Filed: 2003-04-16
Abstract: L'invention concerne des dérivés d'aralkyle-alcool pipérazine (I), des compositions les renfermant, et leurs utilisations lors de la préparation d'antidépresseur. Selon les expériences pharmacologiques, ils présentent une double inhibition favorable pour le recaptage de l'émetteur de monoamine du système central, ainsi qu'une activité antidépressive favorable, les effets secondaires étant faibles.
Patent WO-2005063534-A1 (WO)
Title: Frein a disque hydraulique
Inventor: HUANG TANCHENG
IPC: F16D65/14
Filed: 2003-12-26
Abstract: L'invention concerne un frein à disque hydraulique comprenant un support coulissant et un corps. Le support coulissant, qui coopère avec un ressort de rappel, est fixé au corps, lequel est pourvu d'un ensemble valve de commande. Le corps comporte une rainure permettant de transférer de l'huile. Ce frein à disque est actionné au moyen d'un dispositif de freinage par augmentation de la pression de l'huile dans la rainure. Lors d'un freinage, le support coulissant se déplace en va-et-vient sur un trajet en arc par rapport au corps au moyen de l'ensemble valve de commande, le frein à disque étant alors bloqué et libéré de manière répétée. Ainsi, le mode de freinage de la présente invention permet d'empêcher le frein à disque hydraulique du véhicule de bloquer le frein à disque, et de supprimer les risques d'instabilité et de dérapage survenant lors d'un freinage brutal.
Patent WO-0167827-A1 (WO)
Inventor: VOLLKOMMER FRANK
IPC: H05B41/24
Filed: 2001-01-09
Abstract: L'invention concerne un procédé d'utilisation d'une lampe à décharge silencieuse (L) amélioré par rapport à la demande précédente (198 39 329.6). Selon ledit procédé, une impulsion de tension provoquant un allumage est appliquée selon le principe de conversion de flux au moyen d'un transformateur (T) à partir d'un circuit primaire (P) dans un circuit secondaire (S) contenant la lampe à décharge silencieuse (L). Ensuite, le circuit secondaire (S) effectue une oscillation partielle provoquant un allumage inverse en raison de la polarisation de la lampe à décharge (L). Ladite amélioration réside essentiellement dans le fait qu'une inductance du transformateur (T) déterminant un courant de transformateur est modifiée dans le temps.
Patent WO-0165729-A1 (WO)
Title: Verfahren, mobilfunksystem und station zur ermittlung einer vorhaltezeit für eine verbindung zwischen zwei stationen
Inventor: KOEHN REINHARD
IPC: H04J3/06
Filed: 2001-02-23
Abstract: Während der Ermittlung der Vorhaltezeit (TA) werden die Daten von der ersten Station (MS) ohne die Vorhaltezeit in Form kurzer Funkblöcke (B1) übertragen. Nach der Ermittlung der Vorhaltezeit (TA) werden die Daten (D) von der ersten Station (MS) unter Berücksichtigung der Vorhaltezeit in Form langer Funkblöcke (B2) übertragen, die länger als die kurzen Funk-blöcke (B1) sind. Sowohl die kurzen Funkblöcke (B1) als auch die langen Funkblöcke (B2) werden von der ersten Station (MS) in demselben der Verbindung zugewiesenen Kanal übertragen.
Patent WO-0207392-A1 (WO)
Inventor: GRIMMINGER JOCHEN
IPC: H04L45/122
Filed: 2001-07-03
Abstract: Die Erfindung besteht im Wesentlichen darin, dass nicht mehr alle Router innerhalb eines Netzwerkes, sondern nur die Router von mobilen Ankerpunkten (MAPs) die Sprungzahlen (HOPS) von den mobilen Ankerpunkten verändern müssen und eine Berechnung der Sprünge im jeweiligen mobilen Knoten aus der Sprunggrenze (HOPLIMIT) und den jeweiligen Sprungzahlen erfolgt.
Patent WO-0212655-A1 (WO)
Inventor: LEDERER JUERGEN
IPC: E04G1/22
Filed: 2001-07-26
Abstract: A work platform for arranging in any position in a bay (10) of a high-bay racking facility has a support structure (24) with the dimensions of a standard pallet. Fixed on this support structure (24) is a preferably adjustable, walkable floor. In this way, a secure, comfortable standing surface is created for working in any part of a high-bay racking facility.
Patent WO-0226408-A1 (WO)
Title: Verfahren und vorrichtung zum betreiben einer warmwalzstrasse mit mindestens einem stauchgerüst
Inventor: THIELE KONRAD
IPC: B21B37/72
Filed: 2001-09-17
Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Betreiben einer Warmwalzstrasse mit mindestens einem Stauchgerüst und wenigstens einem Sensor mit dem die Bestimmung der Bandendenposition durch eine zeilenförmige Erfassung der Infrarotstrahlung des Walzbandes erfolgt, und mit einem Rechensystem eine Optimierung der Bandbreitenverteilung erreicht wird.
Patent WO-02082007-A1 (WO)
Title: Interferometrische messvorrichtung
Inventor: LINDNER MICHAEL
IPC: G01B9/02
Filed: 2002-03-16
Abstract: Die Erfindung bezieht sich auf eine interferometrische Messvorrichtung zum Vermessen einer Oberfläche oder Grenzfläche eines Messobjektse (o). Ein Einfluss von Erschütterungen auf das Messergebnis wird dadurch unterbunden, dass eine Verbindungseinheit (VE) vorgesehen ist, mit der zumindest ein dem Messobjekt (O) zugeordneter Abschnitt der Messvorrichtung mit dem Messobjekt (O) unmittelbar mechanisch starr und lösbar verbindbar ist.
Patent WO-03095745-A1 (WO)
Title: Mehrschichtenkörper mit einer lasersensitiven schicht
Inventor: LUTZ NORBERT
IPC: B32B29/00
Filed: 2002-05-08
Abstract: Es wird ein Verfahren zur Erhöhung der Fälschungssicherheit von Papierdokumenten beschrieben. Auf dem Papierdokument wird hierzu eine Transferfolie oder Laminierfolie aufgebracht, die eine lasersensitive Schicht aufweist. Dieser Mehrschichtenkörper wird sodann mit Laserstrahlung behandelt. Hierbei wird in der lasersensitiven Schicht eine laserinduzierte Markierung erzeugt, z.B. durch laserinduziertes Bleichen, laserinduzierten Farbumschlag oder laserinduziertes Schwärzen. Über diese laserinduzierte Markierung kann jeweils eine Individualisierung des Dokumentes erfolgen.
Patent WO-02094474-A1 (WO)
Inventor: BING KARLHEINZ
IPC: F02F7/00
Filed: 2002-05-21
Abstract: Selon l'invention, pour la réalisation d'une douille de cylindre en métal léger pour moteurs à combustion interne, présentant une surface facilitant l'accrochage de la matière d'enrobage par coulée, on suit le procédé dit à 'mousse perdu', et, pour la réalisation du modèle de coulée en mousse, on utilise un moule comportant une surface structurée présentant des différences de hauteur de 0,8 à 5 mm, la structure de ladite surface pouvant être formée, par exemple, par des rainures ou des élévations longitudinales.
Patent WO-2004029508-A1 (WO)
Title: Beleuchtungssystem mit einer entladungslampe sowie verfahren zur vermeidung des austritts unerwünschter gase und glassplitter aus einem solchen beleuchtungssystem
Inventor: HEIKE FLORIAN
IPC: F21V25/12
Filed: 2003-09-18
Abstract: Die Erfindung betrifft ein Beleuchtungssystem mit einer Entladungslampe (4), insbesondere einer Hochdruckentladungslampe, die in einer gasdicht geschlossenen Vorrichtung angeordnet ist. Erfindungsgemäss weist die Vorrichtung ein Überdruckventil (12) auf, das derart angeordnet und ausgewählt ist, dass Luft, die sich im Innenraum der Vorrichtung bei Inbetriebnahme der Entladungslampe thermisch ausdehnt, durch das Überdruckventil (12) in den Aussenraum der Vorrichtung entweicht. Durch ein derartiges Beleuchtungssystem wird verhindert, dass giftige Gase, bei einer Explosion der Entladungslampe (4) aus dem Beleuchtungssystem in die Umgebung entweichen. Die Erfindung betrifft ausserdem ein Verfahren zur Vermeidung des Austritts unerwünschter Gase oder Glassplitter aus einem Beleuchtungssystem mit Entladungslampe bei Zerstörung dieser Entladungslampe.
Patent DE-1560286-A1 (DE)
IPC: A41H41/00
Filed: 1966-09-13
Abstract: 1,163,524. Pile fabrics; finishing fabrics. SOC. ANON. TISSAVEL. 14 Sept., 1966 [14 Sept., 1965], No. 15309/69. Divided out of 1163523. Headings D1K, D1S and D1W.- An imitation fur fabric is woven face to face using as the pile a plied yarn comprising a yarn including non-shrinkable staple fibres, fibres, plied with a continuous filament yarn of shrinkable material. In examples, the filament yarn comprises twenty, 5 denier filaments of polyvinyl chloride, and the staple fibre yarn comprises 3 denier non-shrinkable acrylic fibres, or 3 denier shrinkable polyvinyl chloride fibres and 15 and/or 25 denier non-shrinkable acrylic fibres. In the woven fabric the tufts are cut, and then brushed using metal spikes to straighten the tufts and remove any fibres not held. The shrinkable fibres are shrunk using heat, and the fabric finally combed or brushed.
Patent DE-1817380-A1 (DE)
Title: Artificial foot spaced from leg stump by air - cushion and foam
Inventor: GEBHARDT FRITZ
IPC: A61F2/66
Filed: 1968-12-30
Abstract: The amputated leg stump is separated from an artificial plastics foot by an air cushion and a layer of plastics foam. The air cushion is provided with a valve controlled inlet. The foot is partially made of polyurethane foam.
Patent DE-1915151-A1 (DE)
Title: Continuous small section or wire rolling - mill
Inventor: HEIN EWALD
IPC: B21B1/18
Filed: 1969-03-25
Abstract: The small section, or wire rolling mill is equipped with two parallel stands in the intermediate line and two parallel stands on the processing lines. There is a common, mass-drive motor, adjustable to a basic speed, to which each of the parallel stands are coupled by interposing a variable drive e.g. a differential drive. This has an output speed of which is variable by an auxiliary motor.
Patent DE-1927843-A1 (DE)
Title: Filter for sewage and thin sludges
Inventor: RUDOLF ABEND DR-ING
IPC: B01D33/00
Filed: 1969-05-31
Abstract: In a rotary disc pressure filter (as described in DT p1904643.6) trough-shaped perforated plates below the filter package effect better distribution of sludge on the filter discs and prevent scaling of the filter cake.
Patent DE-1952600-A1 (DE)
Title: Oxy-acetylene burner nozzle with wedge - shated slots for hot gases
Inventor: BAHN ALFRED
IPC: F23D14/54
Filed: 1969-10-18
Abstract: The oxygen jet is provided with a special tip which is inclined at an angle of 45 degrees back to the outer casing covering the slots for the hot gases. The outer casing is stopped short of the projecting jet end.
Patent DE-1959032-A1 (DE)
Title: Laminated cladding for ships' decks
Inventor: PESCHKE ALFRED
IPC: B63B3/14
Filed: 1969-11-25
Abstract: The deck is clad with two layers of polyurethane the relationship between bottom and top layer thicknesses being 5:1. The bottom layer is a hard foam and the upper strata is a pore-free consistency mixed with dye-stuff and an anti-slip material. Being of the same basic material, the coefficient of expansion of the two layers is similar which prevents internal stresses leading to cracking, splitting and peeling.
Patent DE-2003289-A1 (DE)
Title: Contact cooling device for blown film
Inventor: WAGENER JUERGEN
IPC: B29C48/90
Filed: 1970-01-26
Abstract: Device is formed from several parallel, adjustably distanced cooling bodies, encircling the blown film, through which a cooling medium flows. The curved, iris diaphragm cooling segments forming the contact cooling body are arranged in one plane on a common carrier with common control gears operated by a common drive.
Patent DE-2011700-A1 (DE)
Title: Hardening of pitch bonded ore pellets
IPC: C22B1/24
Filed: 1970-03-12
Abstract: Hardened ore pellets are produced from powder or granules mixed with hot bitumen and/or mineral oils compacted warm in a pelletting machine, by a thermal after treatment consisting of passing the warm pellets together with ore powder of up to 5mm diam. through a rotary shaft furnace. In the kiln a counter current gas stream at 250 - 450 degrees C is maintained. After passage through the kiln the powder and pellets are separated by sieving. The pellets produced are mechanically strong and are particularly suitable for subsequent passing through a reduction furnace.
Patent DE-2012525-A1 (DE)
Title: Paint binders based on amino plast-poly-ester mixtures - or co-condensates
IPC: C09D167/00
Filed: 1970-03-17
Abstract: The binders consist of 50 to 10% aminoplast (A) and 50-90% polyester (B) in which (B) is a linear polyester of mol. wt. 250 to 2500, and is made from defined mixtures of 1,3-butane diol and other diols and dicarboxylic acids or their derivatives. The averge mol. wt. of the polyester mixture of pref. 600 to 2000. A combination of polyester with mol. wt. 250-800 aminoplast pre-polymers of low mol. wt. may also be used. Preferred acid components are mixtures of phthalic and succinic anhydrides. They are suitable for use as binders in storing paints and lacquers, giving coatings, of high hardness, flexibility and impact resistance, which are not prone to yellowing and resist aromatic solvents.
Patent DE-2016936-A1 (DE)
Title: Fortified phenolic resins
IPC: C07C43/263
Filed: 1970-04-09
Abstract: The flexibility, toughness, and resistance to shock, heat and chemical attack of phenol/aldehyde (HCHO) resins are simultaneously improved by incorporating in the resin, either at the initial reaction stage or resinoid stage, 0.2-9 parts per part of resin of an alkoxymethyl diaryl oxide having an average of 1-4 alkoxymethyl gps. and in which the alkoxy groups have 1-4C atoms and the aryl groups are hydrocarbons of the benzene series (Ph). The improved resins are used as binders in moulding compositions, adhesives in laminates, and as protective coatings for metals.
Patent DE-2046930-A1 (DE)
Title: Compex halogenated aluminium phosphates - for fibres coatings and inders
IPC: D01F9/00
Filed: 1970-06-11
Abstract: The complex contains at least one, pref. 4, chemically bound ROH molecule where R is either H or and organic radical. R is pref. an opt. subst. aliphatic hydrocarbon (C1-C4), specif. ethyl alcohol. The halohen can be Cl, Br, Ti; the atomic ratios of both P and halogen to aluminium being near 1:1. If both water and alcohol are present the number of molecules is pref. 2-5. Specific compounds claimed have empirical formulas: AlPBrH25-C8O8, AlPBrH28C8O8, AlPClH11O9, AlPClH25C8O8 the compounds are prepared from Al-compounds (halides), hydroxy compound and phosphoric acid, -ester or a compound generating the acid or ester.
Patent DE-2048005-A1 (DE)
Title: Tetracycline hydrochloride prodn - by pptn of crude tetracycline with acetate ester and methanol and rapid acidification with
IPC: C07C233/00
Filed: 1970-09-30
Abstract: Tetracycline (I) hydrochloride is produced from (I) with a purity of 3030-100% and a moisture content of =6% by dissolving (I) in a pptn. medium contg. a 2-5C alcohol ester of acetic acid and MeOH, adding a small excess of HCl and immediately evaporating in vacuo to remove MeOH and most of the H2O present in the system. The pharmaceutically acceptable crystalline form of (I). HCl may be obtained by carrying out evapn. in 2 stages, the first at 28 degrees C and the second at 45-48 degrees C.
Patent DE-2053064-A1 (DE)
Title: Reactor water flow d2o monitoring
IPC: G01N23/221
Filed: 1970-10-29
Abstract: Reactor leakage in the water stream is monitored by gamma irradiation from a long-life isotope in radioactive equilibrium with a high-energy, short half-life isotope. The heavy water irradiated by the gamma rays emits a radiation which is detected and forms an indication of the presence of D2O.
Patent DE-2154248-A1 (DE)
Title: Centrifugal separator - for flasks or test tubes contg mixts of solids and liquids
Inventor: HEMFORT SEN HEINRICH
IPC: B04B5/04
Filed: 1971-10-30
Abstract: Each vessel is placed in a holder mounted on the single rotor of the centrifuge by a pivot pin near its top edge and with its mouth below a feeder tube for the suspension which is to be sepd. or for washing liquid. Immediately below each holder a bell crank lever pivoted at its apex has its upper arm pressing on the outer face of its associated holder and its lower arm with a recess in its inner side facing the body of the rotor. A radial/axial channel communicates with this recess through the lower hub of the rotor from an external pressurized source of control liquid so enabling the relative slope of the holder to the central axis of rotation to be accurately controlled during centrifuging. Smoother control is obtained than by the use of springs. Each control recess in the lower arms of the bell cranks has a radial outwards vent.
Patent DE-2212192-A1 (DE)
Title: Baking-out vacuum equipment - esp for high vacuum by blowing through with hot gas or air
Inventor: ADAMS HERMANN DR
IPC: H01J9/385
Filed: 1972-03-14
Abstract: Method utilises gases at the appropriate temp. the gas pref. being blown through at approx. atmospheric pressure. Pref. a hot air blower is connected to the equipment and the air discharged from it may be recycled.
Patent DE-2219833-A1 (DE)
Title: Copolymsn of ethylene with butene-1-to give partly - crystalline, low density, copolymer
Inventor: BAXMANN FRITZ DR
IPC: C08F210/00
Filed: 1972-04-22
Abstract: Copolymsn. is effected using mixed catalysts consisting of halo-orthotitanates and Cl-contg., Al-org. cpds., in liq. phase, at 30 degrees C, in a solvent contg., apart from butane and/or butene-2, 30-99 mol% butene-1. Ethylene copolymers may be produced from C4 fractions contg. >=30 mol% butene-1.
Patent DE-2231887-A1 (DE)
Title: Bath flakes compsn - for use in aerosol or spray
Inventor: COX HANS
IPC: A61K8/97
Filed: 1972-06-29
Abstract: Title compsn. contains 30% Tego-Betain L7; 2% sodium laurylethersulphate; 1% pine oil, 2% lanthrol; 2% 1,2-propyl-leneglycol, 2% Neo-PCl; 2% ethanol; 2% oyster extract; 1% camomile extract, 0.5% avocado oil; 0.5% wheat germ oil, 0.5% vitamin A.F.E; 36.5% plant extract; and 15% extract 21.5% distilled water (Pat.Cox2036786/6). When sprayed on skin. hair or bath water etc. it leaves behind adhering flakes.
Patent DE-2239478-A1 (DE)
Title: Blow-moulding polyurethane film - using adhesion-preventing agent in blow air stream
Inventor: REIFENHAEUSER FRITZ
IPC: B29C48/90
Filed: 1972-08-11
Abstract: In the blow-moulding of plastic film from adhesive plastics, partic. polyurethane, by the known technique of extruding a tube, expanding by blowing air into the interior then flattening the tubular film and winding it up, the further improvements comprise (a) adding a finely divided dust or liquid-form adhesion preventer to the blow air stream, (b) calibrating of the tubular film, (c) cooling the tubular film in a water-bath during or directly after the vacuum calibration, More esp. the adhesion-preventing material is a silicate.
Patent DE-2240580-A1 (DE)
Title: Laminated windscreen with a polyurethane layer - to protect it against shatt-ering on impact, for aircraft and armoured vehicles
Inventor: FREY WILLIAM IVAN
IPC: B32B17/10
Filed: 1972-08-18
Abstract: The windscreen has a relatively solid layer, 0.13-6.4mm thick, of a transparent material, specif. a polycarbonate resin, a first open surface to which is bonded an optically smooth layer, 0.076-3.8 mm thick, of a polyurethane, thus forming a new open surface, which is in-facing towards the structure contg. the windscreen.
Patent DE-2305206-A1 (DE)
Title: Fibre-reactive anthraquinone dyes - prepd by reacting 1,4-bis(aralkyl amino) anthraquinone with n-methylol cpd and sulphona
Inventor: SCHWANDER HANSRUDOLF DR
IPC: C09B62/467
Filed: 1973-02-02
Abstract: Dyes have formula: (where X1 and X2 are H or OH; Y1 and Y2 are H or halogen; A1 and A2 are 1-4 C alkylene or direct bond; total no. of C atoms in each of (A1+B1) and (A2+B2) is not >5; Z1 and Z2 are halogenated 2 or 3 C aliphatic acyl; the 2 phenyl gps. opt. carry other substituents), and are used for dyeing and printing natural prods. (e.g. leather, silk and esp. wool), synthetic fibres (e.g. polyamides, polyurethanes) and cellulosics (e.g. cotton or rayon) in blue or greenish-blue shades.
Patent DE-2306339-A1 (DE)
Title: Oil bath air filter - for I.C. engine or piston compressor
IPC: F02M35/026
Filed: 1973-02-09
Abstract: Filter is insensitive to position, and has a central air feed tube, whose outlet opening faces the oil bath and which is surrounded by an annular space at least partly filled with a filter mass. The space is connected on one side to the outlet opening of the tube and on the other to a clean air outlet connection. A separating metal sheet which closes off the oil bath pot at least from the annular space is fitted between the tube's outlet opening and the oil bath, and has a central opening of a size that, and the oil bath vol. is smaller than the pot vol. to an extent that, the oil level is below the central opening when the level is parallel to the axis of the air feed tube.
Patent DE-2330499-A1 (DE)
Title: Mechanical calibration of pipette - using photo detectors of liquid surface to mark each position
Inventor: BAETZ BERTHOLD
IPC: B01L3/02
Filed: 1973-06-15
Abstract: Pipettes or burettes are calibrated by filtering with a known quantity of liquid, then sensing the position of the liquid meniscus by a photoelectric cell moved along the pipette, and then marking the appropriate position thus established. Pref. two photoelectric cells are moved together along the pipette; when the first one reaches the meniscus, the motion of both cells is decelerated, and when the second reaches it, their motion is stopped and the scale is marked.
Patent DE-2338647-A1 (DE)
Title: Printed circuit board with through-plating - provides high quality general purpose circuit mounting facility
Inventor: HARDERS RAINER
IPC: H05K3/34
Filed: 1973-07-30
Abstract: A printed circuit board is used which has a matrix of through plated holes, connecting a set of contact bands on one side with a common electrical surface on the other. The effect of the common surface is to allow high frequency circuits to be mounted on such boards without interference problems. Where a circuit element is to be connected to the common surface, which usually is at earth potential, it is simply soldered on to a band, which connects it as required via the through-hole plating, when isolation from the common surface is required, a countersunk hole is drilled at the appropriate hole on the common surface side, thus isolating the contact card from the common surface. The component may then be mounted on either side of the board, possibly using a stand off pin, by soldering to the land. This arrangement is claimed to give good performance at all frequencies.