baber/WOPTO huggingface dataset:
Patent AT-E99177-T1 (AT)
Inventor: HAINDL HANS DR
IPC: A61B17/34
Filed: 1991-03-06
Granted: 1994-01-15
Abstract: One side wall of a rigid needle tube is provided at its front end with a curved bending directed towards the opposite, axial side wall and has a lumen opening formed therein. The lumen opening is provided with a rear inner cutting edge and a front punctuating portion which comprises a lancet-shaped tip having a facet grinding. The tip is arranged in a zone defined by two imaginary lines extending respectively from the inner surface and the outer surface of the axial side wall beyond the rear cutting edge of the lumen opening. When using the needle, no material is punched out of the material to be perforated.
Patent AT-E133111-T1 (AT)
Inventor: WATANABE YASUTOMO CANON KABUSH
IPC: B41J2/16
Filed: 1991-02-25
Granted: 1996-02-15
Abstract: In the wiring portion in the wiring substrate constituting the recording head of a liquid spray type recording apparatus, the electroconductive layers (30, 141) comprises at least two layers, the protective layer of the electroconductive layer includes at least two unit layers (35, 36, 142, 144), one of them being formed so that it has a shape and size different has a size and shape different from those of the through hole(s) (35a, 36a) in remaining unit protective layer(s) (35, 36, 142, 144), thereby assuring the formation of electric connection portion and improving durability of the electric connection portion. <IMAGE>
Patent AT-E91740-T1 (AT)
Inventor: HERBERT WALTER
IPC: E04C3/36
Filed: 1991-01-21
Granted: 1993-08-15
Abstract: The column has slot-shaped fastening openings (11) arranged in the form of a cross, which are situated on four sides of a square column core (10) and are provided for hooking in suspension members (12). Mounted on the column core (10) are four profiled covering members (4, 4a) which cover the column core (10), leaving open four continuous guide channels (19) distributed uniformly on the periphery. The column core (10), made of a square metal tube, contains, in linear arrangement with respect to the first fastening openings (11), two fastening openings (13) for receiving guide members (14) which serve for fixing the covering members (4, 4a) on the column core (10). <IMAGE>
Patent AT-E99262-T1 (AT)
Inventor: SCHILLER ROLF
IPC: B65F3/00
Filed: 1991-06-27
Granted: 1994-01-15
Abstract: PCT No. PCT/DE91/00528 Sec. 371 Date Dec. 29, 1992 Sec. 102(e) Date Dec. 29, 1992 PCT Filed Jun. 27, 1991 PCT Pub. No. WO92/00232 PCT Pub. Date Jan. 9, 1992.A garbage collection and transport system includes a garbage vehicle (1) with a partition (2) which separates the interior of the vehicle (1) into different stowage compartments (3, 4) for the separate collection of garbage of different types (A, B). The vehicle (1) has charging openings (6, 7) which are decoupled from the arrangement of the partition (2) between the individual stowage compartments (3, 4). To this end, the charging openings (6, 7) on the vehicle are arranged with individual filling openings (15, 16) in such a way that they lie fully in the region of a given stowage compartment and the filling opening that is not allocated to this stowage compartment is connected to the stowage compartment allocated to this fraction of the garbage via intermediate transport channels or supply devices.
Patent AT-E134115-T1 (AT)
Inventor: HANNERSTIG CHRISTER
IPC: A47H19/00
Filed: 1991-09-27
Granted: 1996-02-15
Abstract: A device for draping curtains, includes a holder about which curtain fabric may be placed and which is adapted to be mounted on a wall by means of a bracket in spaced relationship to the wall such that the plane defined by the holder extends approximately parallel to the wall. The holder meandering shape.
Patent AT-E126136-T1 (AT)
Inventor: DURIF PIERRE
IPC: B60B25/04
Filed: 1992-05-21
Granted: 1995-08-15
Abstract: The rim in accordance with the invention is a rim formed of a metal rim base (1) and two movable side rings (2), each of said rings (2) consisting of vulcanized rubber reinforced by a circumferentially stretchable annular element (41) the cross-section of which is only slightly deformable under compressive stress. A tire of an H/B form ratio of 0.80 which is particularly adapted to such a rim has beads each comprising two annular elements (64', 64''; 74', 74''; 84', 84''; 94', 94'') which are unstretchable and have faces which make it possible to insert between them either the end (72, 92) of the carcass reinforcement (70, 90) or the carcass reinforcement (60, 80) and/or itself or its turn-up (61, 81).
Patent AT-E131790-T1 (AT)
Inventor: GOGLIO LUIGI
IPC: B65D21/02
Filed: 1992-06-17
Granted: 1996-01-15
Abstract: A container made of flexible material (2) with the consistency of a rigid container, suitable for vacuum-packed or non vacuum-packed products and/or sterilizable products, or for containing liquid products, comprising stiffening plates as a cover (3) and as a base (4) and a system of folds which involves a horizontal folding edge (22) and the two opposed vertical folding edges (23). In a first embodiment, the cover plate (3) has a lid (6), for example opening on a hinge, and the base plate (4) contains an expansion chamber (21), which communicates with the outside in order to compensate for any possible variation in the volume of the product inside the container (1), at the moment of packing. In another embodiment of the container (1), the cover plate (3) is provided with a dispenser spout (25), and the base plate is joined to the plate (3), in such a way as to allow the containers (1) to be stacked on top of each other, irreversible hooking means (29, 30) being foreseen inside the said plates (3, 4), which hold the plates together after the axial crushing of the empty container. <IMAGE>
Patent AT-E134416-T1 (AT)
IPC: E21B7/28
Filed: 1992-10-08
Granted: 1996-03-15
Abstract: The reaming tool comprises a support spindle (10) which has a first fastening device (12) for a drill stem as well as a second fastening device (14) for a material to be drawn in, bores being provided in the support spindle for the supply of a drilling suspension. Furthermore, the reaming tool comprises a reaming body arranged on the support spindle (10) and having highly wear-resistant, abrasive members. The reaming body consists of at least two individual, disc-like reaming elements (16) of different diameter which are arranged at a mutual distance apart on the support spindle (10). <IMAGE>
Patent AT-E134825-T1 (AT)
Inventor: VAN AMSTEL LEONARDUS HENDRICUS
IPC: A01D43/08
Filed: 1992-11-03
Granted: 1996-03-15
Abstract: The invention relates to a maize chopper provided with a frame, with at least two co-operating main cutting means (7,8) which are rotatably journalled in the frame (5) about upwardly extending axes of rotation, and with feed members (9,10), which are disposed above the main cutting means (7,8) and which rotate along with said main cutting means during operation, for transporting the crop in the direction of a chopping chamber (4), in which a chopping mechanism for chopping the fed-in crop is disposed. The device is at at least one side equipped with an add-on device, which is provided with at least two additional co-operating auxiliary cutting means (11,12), which are coupled to one of the main cutting means (7) by a chain (18) provided with carriers (21). Crop cut by the auxiliary cutting means (11,12) is transported by the chain (18) along the rear side of a carrier wheel (14) provided above the auxiliary cutting means (11) located closest to the main cutting means (7,8) and introduced into the space between the feed members (9,10) located above the main cutting means (7,8), so as to be fed to the chopping mechanism. <IMAGE>
Patent AT-E163289-T1 (AT)
Inventor: WAGNON JEAN
IPC: A61K31/40
Filed: 1992-08-03
Granted: 1998-03-15
Abstract: 3-Hydroxy-1-indolinyl sulphones of formula (I) and their salts are new: In (I), R1 = halogen, 1-4C alkyl, OH, 1-4C alkoxy, benzyloxy, CN, CF3, NO2 or NH2; R2 = 1-6C alkyl; 3-7C cycloalkyl,; 5-7C cycloalkenyl; phenyl opt. substd. by 1-4C alkyl, 1-4C alkoxy, halogen, CF3 and/or NH2; or nitrophenyl opt. substd. by CF3, 1-4C alkyl or halogen; R5 = 1-4C alkyl; 1- or 2-naphthyl;5-dimethylamino-1-naphthyl; phenyl opt. substd. by halogen, CF3, NH2, mono- or di (1-4C alkyl) amino, OH, 1-4C alkoxy, 2-4C alkenyloxy, 1-4C alkylthio, CF3, benzyloxy, CN, COOH, 2-5C alkoxycarbonyl, CONH2, mono- or di (1-4C alkyl)carbamoyl or 1-4C alkanoylamino; or nitrophenyl opt. substd. by CF3, 2-4C alkenyloxy, halogen, 1-4C alkyl, 1-4C alkoxy, 1-4C alkylthio, OCF3 or benzyloxy; R6 = 1-6C alkyl or R7; R7 = 1-R-4-piperidinyl, 1-R-3-azetidinyl or (CH2)rR'; R = H, 1-4C alkyl, benzyloxycarbonyl or 2-5C alkoxycarbonyl; R1 = pyridyl, OH, NH2, mono- or di(1-4C alkyl)amino, COOH, 2-5C alkoxycarbonyl, benzylcarbonyl, CONH2 or mono- or di(1-4C alkyl)carbamoyl; or NR6R7 = morpholino; thiomorpholino; thiazolidinyl or 2,2-dimethylthiazolidinyl opt. substd. by R8; 1-piperazinyl opt. 4-substd. by R"8; and unsatd. 5-membered monoaza ring substd. by R8; or a satd. 3- to 7-membered monoaza ring substd. by R8 and R9; R8 = R'8 or (CH2)rA1, where A1 = OH, NH2 or mono- or di(1-4C alkyl)amino; R'8 = (CH2)qA2, where A2 = COOH, 2-5C alkoxycarbonyl, benzyloxycarbonyl, CONH2, CONHOH, mono- or di(1-4C alkyl)carbamoyl, CSNH2 or mono- or di(1-4C alkyl)thiocarbamoyl; R"8 = R8' or (CH2)A3, where A3 = NH2 or mono- or di(1-4C alkyl)amino; R9 = H, halogen, (CH2rOR10), (CH2)rNR11R12, (CH2)SCONR11R'11 or N3; R10 = H, 1-4C alkyl, mesyl or tosyl; R11, R'11 and R12 = H or 1-4C alkyl, or R11 = H, and R12 = benzyloxycarbonyl or 2-5C alkoxycarbonyl; n and m = 0-2; q = 0-3; r = 0-3, but not 0 when R8 or R9 is in a position alpha to the intracyclic amidic nitrogen (SiC); s = 0 or 1.
Patent AT-E134988-T1 (AT)
Inventor: RAJAGOPALAN RAGHAVAN
IPC: A61K51/00
Filed: 1991-12-12
Granted: 1996-03-15
Abstract: The present invention relates particularly to novel preorganized hexadentate ligands that are suitable for complexing with a radionuclide, and are useful as general imaging agents for diagnostic purposes.
Patent AT-E139867-T1 (AT)
Inventor: WAGNER ERICH JAMES
IPC: E04D3/366
Filed: 1992-05-11
Granted: 1996-07-15
Abstract: A solar panel for use in a roof mounted array of solar panels, each panel having ridges protruding outwardly and adjacent to the side edges for receiving a standing seam cap between side-adjacent panels. Each solar panel is formed as an integral structure having a photovoltaic module an edge of which is sealed by a base substrate. The base substrate is configured to have lipped top and bottom edges which interlock to form a watertight seal between top-adjacent and bottom-adjacent solar panels. The solar panel array can be mounted on a roof, in place of shingles or the like, to provide environmental protection for the interior of a building.
Patent AT-E230209-T1 (AT)
Inventor: SHERMAN GUY J
IPC: C11D1/66
Filed: 1992-08-25
Granted: 2003-01-15
Abstract: A system and method for cleaning, conditioning, storing and wetting rigid gas permeable contact lenses is provided. The system includes a cleaning, conditioning and storing solution and a separate wetting solution. Both solutions contain hydrophilic disinfectants or preservatives which do not inhibit proper wetting of rigid gas permeable contact lenses. The lenses are stored in the cleaning, conditioning and storing solution during nonwearing periods. This storage also acts as a secondary or backup cleaning treatment to help remove any residual contaminants after the primary cleaning with this solution. In accordance with another embodiment of the invention, a preservative system is provided for a contact lens solution that comprises high purity benzyl alcohol.
Patent AT-E213409-T1 (AT)
Inventor: SAMID DVORIT
IPC: A61K31/19
Filed: 1992-10-13
Granted: 2002-03-15
Abstract: A pharmaceutical composition for inhibiting viral replication and spread comprises a pharmaceutically effective amount of a compound of formula I: R<1>R<2>CH-COOH wherein R<1> is selected from H, CH3, CH3-O-, C2H5 or C3H7; R<2> is selected from aryl (formulae of original claim 6) <CHEM> wherein X is independently selected from halogen or hydroxy, and n is 0 to 4; a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and mixtures thereof together with a pharmaceutically acceptable carrier. <IMAGE>
Patent AT-E133045-T1 (AT)
Inventor: LYGUM POUL
IPC: F24H1/18
Filed: 1992-10-15
Granted: 1996-02-15
Abstract: PCT No. PCT/NL92/00184 Sec. 371 Date Apr. 6, 1994 Sec. 102(e) Date Apr. 6, 1994 PCT Filed Oct. 15, 1992 PCT Pub. No. WO93/07794 PCT Pub. Date Apr. 29, 1993.An oven for frying food products in hot oil comprises a tank (1) in which the frying oil can be accommodated, a gas-fired heating device (9) connected to a heat exchanger (19) which is situated in the tank and through which the smoke gases flow, and also an outlet (30) for the smoke gases emerging from the heat exchanger. In order to avoid overheating of the oil near the heating device, a bypass pipe (34) connected to the outlet is provided for conveying at least a part of the outlet smoke gases back through the heat exchanger.
Patent AT-E182794-T1 (AT)
Inventor: KUHAR MICHAEL J
IPC: A61K51/00
Filed: 1992-11-13
Granted: 1999-08-15
Abstract: Novel compounds show high affinity for specific cocaine receptors in the brain, particularly dopamine transporter sites, and have the formula Wherein Y = CH<sub>2</sub>R<sub>3</sub>, CO<sub>2</sub>R<sub>2</sub> orR<sub>1</sub> =hydrogen, C<sub>1-5</sub> alkyl,R<sub>2</sub> =hydrogen, C<sub>1-6</sub> alkyl, C<sub>3-8</sub> cycloalkyl, C<sub>1-4</sub> alkoxy, C<sub>1-6</sub> alkynyl, halogen or amine,R<sub>3</sub> =OH, hydrogen, C<sub>1-6</sub> alkyl, C<sub>3-8</sub> cycloalkyl, C<sub>1-4</sub> alkoxy, Cl, Br, I, CN, NH<sub>2</sub>, NHC<sub>1-6</sub> alkyl, NC<sub>1-6</sub> alkyl, OCOC<sub>1-6</sub> alkyl, OCOC<sub>1-3</sub> alkylaryl,A =S, O or NHX =H, C<sub>1-6</sub> alkyl, C<sub>3-8</sub> cycloalkyl, C<sub>1-4</sub> alkoxy, C<sub>1-6</sub> alkynyl, halogen, amino, acylamido, andZ =H, I, Br, Cl, F, CN, CF<sub>3</sub> NO<sub>2</sub>, N<sub>3</sub>, OR<sub>1</sub>, CO<sub>2</sub>NH<sub>2</sub>, CO<sub>2</sub>R<sub>1</sub>, C<sub>1-6</sub> alkyl, NR<sub>4</sub>R<sub>5</sub>, NHCOR<sub>5</sub>, NHCO<sub>2</sub>R<sub>6</sub>, wherein R<sub>4</sub>-R<sub>6</sub> are each C<sub>1-6</sub> alkyl.
Patent AT-E144310-T1 (AT)
Inventor: MINEGISHI KIYOJI
IPC: F16H1/32
Filed: 1993-01-22
Granted: 1996-11-15
Abstract: A series of speed increasing and reduction gear having an inscribed meshing type planetary gear construction, in which within the same frame number (sub-series) with a tie-in dimension to a mating machine being constant, on both high and low speed change ratio sides, sufficient dynamical strength is secured, parts may be used in common with each other, and general-use bearings which are low in cost and high in accuracy can be employed. To realize this, within the same frame number with a tie-in dimension to a mating machine being constant, a plurality of low speed change ratios to high speed change ratios are prepared, and despite the preparation of the plural reduction ratios, a diameter (D1, D2) of an input shaft (101, 201) and an outside diameter (D3, D4) an eccentric bearing (104a, 104b, 204a, 204b) are set to be the same, the low reduction ratio side comprising a combination of the eccentric bearing (104a, 104b) having a large inside diameter D5 and an eccentric body 103a having a large outside diameter (=D5) while the high reduction ratio side comprising a combination of an eccentric bearing (204a, 204b) having a small inside diameter D6 (D5 > D6) and an eccentric body having a small outside diameter (=D6). <IMAGE>   <IMAGE>
Patent AT-E216393-T1 (AT)
Inventor: IMAKI KATSUHIRO
IPC: A61K31/715
Filed: 1993-01-27
Granted: 2002-05-15
Abstract: A salt of glucopyranose derivative of the formula (I) <CHEM>  wherein     R<2> is <CHEM>     R<3> is <CHEM>     Y<+> is sodium ion or tris(hydroxymethyl)methylammonium ion. Further, a glucopyranose derivative of the formula (II) <CHEM> wherein all the symbols are the same meaning as hereinbefore defined, is an important intermediate for the preparationof compound of the formula (I). The compoud of the formula (I) is prossess enhancing activity of cellular immunity, and therefore be useful for enhancing agent of immunity, prossess inducing activith of TNF, inducing activity of IL-1 and inducing activity of IFN, and therefore be useful for anti-tumor agent. Further, the compound of the formula (II) is intermediate for the preparation of compound of the formula (I), and it can be prepared to advantage on industrially.
Patent AT-E145713-T1 (AT)
Inventor: GUITONEAU HANS
IPC: F16L41/02
Filed: 1993-07-13
Granted: 1996-12-15
Abstract: The branch coupling is equipped with a sealing system (9) incorporated into an open housing (10) provided in the internal wall of the end of the tubular element (5) which is equipped with a shut-off means (6) and constituted by:   - a flexible circular valve (11) located in the open housing exhibiting a circular central part (14) coupled to its periphery by a connection element (15); - a flexible sealing ring (16) applied to the circular valve (11) and exhibiting a central opening (17), the diameter of which is less of that of the tool used to pierce the pipeline; and - a fixing sleeve (18) which can be inserted into the open housing (10) to hold the circular valve (11) and the sealing ring (16) in place.   <IMAGE>
Patent AT-E164126-T1 (AT)
Inventor: VAUGHAN ROBERT ALBERT
IPC: B60J1/17
Filed: 1993-08-03
Granted: 1998-04-15
Abstract: A waist belt (10) for an automotive vehicle (12) has a channel member (20) secured to a vertically extending door skin. The channel member (20) has vertically open slots (40). A belt weatherstrip (22) has a core sheet (42) with legs which extend downwardly into the slots (40). <IMAGE>
Patent AT-E135331-T1 (AT)
Inventor: DELMAS FRANCOIS
IPC: B01J41/04
Filed: 1993-06-18
Granted: 1996-03-15
Abstract: The invention relates to a process for the purification of an aqueous alkali metal chloride solution containing iodine in which oxidation is carried out to molecular iodine and then it is adsorbed on active charcoal. By oxidizing the active charcoal with a solution containing active chlorine before adsorbing the iodine, it is possible to lower the iodine content of the solution to 0.05 mg/l. The invention is particularly useful for purifying sodium chloride brines which are electrolyzed in membrane cells.
Patent AT-E146811-T1 (AT)
Inventor: FLECHE GUY
IPC: C08K5/09
Filed: 1993-07-15
Granted: 1997-01-15
Abstract: A heat-mouldable compsn. contains (a) a starch component, (b) a biodegradable polyester, and (c) a salt of a hydroxycarboxylic acid. Pref. (a) the starchy component is partly melted, and is a native, natural or hybrid starch, from corn, high-amylose corn, waxy corn, wheat, rice, peas, potatoes, manioc and/or cuts or fractions from these, or may be modified, chemically, esp. by ionic or nonionic etherification, esterification, reticulation, oxidn., alkaline treatment, or acid hydrolysis, and/or enzymatically. (b) is polylactic, polyglycolic, polyhydroxybutyric, polyhydroxypropionic, or polyhydroxyvaleric acid, or copolymers of these, or derivs. or salts of the (co)polymers. Esp., it is polylactic acid or a polylactate, e.g. Na polylactate, partic. a polymer or oligomer based on D- and/or L-lactic acid, with mol.wt. below 1,000-000 (below 150,000), esp. an oligomer with mol.wt. 500-5000, and salts, e.g. Na salts, of the polymers and oligomers. The ratio by wt. of (a):(b) is 99:1-1:99 (80:20-50:50), as dry matter. The mol.wt. of the polyester, esp. of lactic acid or a salt, may be at least 150,000. If the mol.wt. of the polyester is below 150,000, the ratio by wt. of (a):(b) is pref. 99:1-70:30, and if it is below 50,000 (800-3000), the ratio is 98:2-80:20. (c) is of a monohydroxy/monocarboxylic and/or polyhydroxy/monocarboxylic acid, esp. an alkali(ne earth) metal salt of lactic (pref.), gluconic, maltobionic, lactobionic or glyceric acid, partic. Na lactate. The ratio by wt. of (a) + (b) : (c) is 99:1-25:75 (98:2-40:60), as dry matter.
Patent AT-E164374-T1 (AT)
Inventor: REGNIER GILBERT
IPC: C07D277/20
Filed: 1993-10-11
Granted: 1998-04-15
Abstract: New thiazolidinedione compounds of formula: <IMAGE> in which Ar, A, X and B are as defined in the description, their enantiomers, diastereoisomers and pharmaceutically acceptable acid addition salts. They can be used in therapeutics, especially in the treatment of insulin-resistant states and/or of non-insulinopenic diabetes, possibly in association with hypertension (high blood pressure).
Patent AT-E145356-T1 (AT)
Inventor: WEXLER FRED C
IPC: A46B3/02
Filed: 1992-12-16
Granted: 1996-12-15
Abstract: An article having a biodegradable inner core and a resistant outer coating has exposure means for exposing the inner core to the environment after completion of the useful life of the article.
Patent AT-E164032-T1 (AT)
Inventor: HACLIN GRAHAM JOHN
IPC: A62C2/06
Filed: 1993-04-27
Granted: 1998-03-15
Abstract: Cable trunking (10) lined with fire resistant thermal insulating material (13, 14). The trunking (10) has a panel (12) which is removable to provide access to the interior. The panel (12) has a channel section, the flanges (12A) of which form a gas-tight seal with the rest (11) of the casing. A normally-open vent arrangement (24-26) allows heat generated by the cables (16-18, 21-22) during normal operation to be dissipated. Each vent (26) is formed in a strip (24) of highly intumescent material which fills the interior of a top-hat section housing (25). In the event of a fire outside the trunking (10), the intumescent material within the housing (25) expands to form a rigid carbon plug which closes the respective vent (26).
Patent AT-E160538-T1 (AT)
Inventor: RICHTER WOLFGANG-DIETER
IPC: B61C7/00
Filed: 1993-08-06
Granted: 1997-12-15
Abstract: A rail vehicle is designed as a light model two-axle simple vehicle or as a multiple axle articulated vehicle whose all essential elements of the body and drive preferably consist of bus serial parts. Both halves of a simple vehicle (1) or the end elements of an articulated vehicle essentially consist of the driven trailer (3') of a pusher articulated bus.
Patent AT-E140854-T1 (AT)
Inventor: MERKENICH KARL
IPC: A23C19/08
Filed: 1993-07-10
Granted: 1996-08-15
Abstract: The invention concerns the use, in the production of process cheese and cheese preparations, of stabilized milk protein, or casein, in the form of a dry powder containing 0.5 to 20 % of phosphate and/or citrate and with a protein content of over 30 % relative to the dry product. The invention also concerns methods of manufacturing such process cheese and cheese preparations.
Patent AT-E144329-T1 (AT)
Inventor: DOROTHY ROBERT GLENN
IPC: H01P7/10
Filed: 1993-08-18
Granted: 1996-11-15
Abstract: A dielectric resonator apparatus for measuring the parameters of high temperature superconducting thin film is disclosed having improved means for positioning the dielectric and substrates, holding the resonator components in place during use, suppressing undesirable modes, adjusting the magnetic dipole coupling, and coupling to an electrical circuit.
Patent AT-E166181-T1 (AT)
Inventor: FLOHR PETER
IPC: H01H71/50
Filed: 1994-07-20
Granted: 1998-05-15
Abstract: The contact breaker (10) breaks a pair of electrical contacts comprising a fixed contact (11) and a movable contact (12). A pretensioned switch lever (17) for the movable contact can be moved into a ready position. To move the switching lever from the ready position in which it is maintained by a holding device (19), a pivotal dislocation is provided to apply an increased breaking force to the moveable contact. The slidable pivot (21) applies an initially high force, which decreases as the switching lever moves the contacts open. The switching lever comprises a first shank (18) which contacts the lever holding device (19), and a second shank (20) which contacts the moveable contact (12).