baber/WOPTO huggingface dataset:
Patent DE-112016006779-B4 (DE)
Title: Arbeitsfahrzeug und Hydraulik-Steuerungsverfahren
Inventor: KOUNO KIICHIROU
IPC: E02F9/22
Filed: 2016-09-21
Granted: 2022-06-09
Abstract: Arbeitsfahrzeug (100), das umfasst:einen Löffel (107);einen Stiel (106);eine erste Hydraulikpumpe (2) und eine zweite Hydraulikpumpe (3), die jeweils ein Hydrauliköl abgeben;einen ersten Hydrauliköl-Kanal (10), durch den das von der ersten Hydraulikpumpe (2) abgegebene Hydrauliköl strömt, um den Löffel (107) anzutreiben;einen zweiten Hydrauliköl-Kanal (11), durch den das von der zweiten Hydraulikpumpe (3) abgegebene Hydrauliköl strömt, um den Stiel (106) anzutreiben;ein Trenn/Zusammenführungs-Ventil (13), das so ausgeführt ist, dass es zwischen einer Zusammenführungs-Position, in der der erste Hydrauliköl-Kanal (10) und der zweite Hydrauliköl-Kanal (11) miteinander in Verbindung gebracht werden, und einer Trenn-Position umgestellt wird, in der der erste Hydrauliköl-Kanal (10) und der zweite Hydrauliköl-Kanal (11) voneinander getrennt sind; sowieeine Steuerungseinrichtung (14), die so ausgeführt ist, dass sie eine Menge des von der ersten Hydraulikpumpe (2) abgegebenen Hydrauliköls, eine Menge des von der zweiten Hydraulikpumpe (3) abgegebenen Hydrauliköls sowie eine Funktion des Trenn/ Zusammenführungs-Ventils (13) steuert;wobei die Steuerungseinrichtung (14) das Trenn/Zusammenführungs-Ventil (13) veranlasst, von der Zusammenführungs-Position an die Trenn-Position zu wechseln, wenn ein Pumpdruck der ersten Hydraulikpumpe (2) oder ein Pumpdruck der zweiten Hydraulikpumpe (3) bei einem Aushubvorgang sich einem ersten vorgegebenen Wert (B) angleicht, unddie Steuerungseinrichtung (14) die erste Hydraulikpumpe (2) und die zweite Hydraulikpumpe (3) so steuert, dass die Menge des von der ersten Hydraulikpumpe (2) abgegebenen Hydrauliköls größer ist als die Menge des von der zweiten Hydraulikpumpe (3) abgegebenen Hydrauliköls, wenn der Pumpdruck der ersten Hydraulikpumpe (2) auf oder über dem ersten vorgegebenen Wert (B) liegt.
Patent DE-112017004008-B4 (DE)
Title: Einkristall-Herstellungsverfahren und Vorrichtung
Inventor: NISHIOKA KENICHI
IPC: C30B13/32
Filed: 2017-07-06
Granted: 2021-08-26
Abstract: Einkristall-Herstellungsverfahren, das ein Verfahren unter Verwendung des FZ-Verfahrens ist, bei dem ein Teil eines Ausgangsmaterialstabs erhitzt wird, um eine geschmolzene Zone auszubilden, und der Ausgangsmaterialstab und ein Einkristall, die jeweils oberhalb und unterhalb der geschmolzenen Zone angeordnet sind, abgesenkt werden, um den Einkristall wachsen zu lassen, wobei das Verfahren die folgenden Schritte umfasst:man lässt den Einkristall oberhalb eines Keimkristalls wachsen, während ein Kristallschaft, der das untere Ende des Keimkristalls trägt, rotiert wird;man lässt ein Tragemittel gegen eine äußere Umfangsoberfläche eines konischen Abschnitts des Einkristalls anstoßen und schaltet ein Haupttrageelement für den Einkristall von dem Kristallschaft auf das Tragemittel um, wenn der Einkristall zu einer vorgegebenen Kristallform gewachsen ist;man senkt den Kristallschaft ab, während die senkrechte Position des Tragemittels beibehalten wird und verstärkt das Einschieben des Tragemittels gegen den Einkristall nach dem Umschalten des Haupttrageelements für den Einkristall auf das Tragemittel, wobei das Ausmaß der Absenkung des Kristallschafts zur Verstärkung des Einschiebens des Tragemittels gegen den Einkristall größer als 0 mm und 0,5 mm oder kleiner ist; undman lässt den Einkristall weiter wachsen, während der Einkristall von dem Tragemittel getragen wird.
Patent DE-112018000409-B4 (DE)
Title: Filterendkappe und Filteranordnung
Inventor: HARRELSON DAVID BRENT
IPC: B01D35/30
Filed: 2018-01-17
Granted: 2023-09-21
Abstract: Vorrichtung, die eingerichtet ist, um mit einem Filtergehäuse (75) und einem Ende eines Filtermediums (12, 112) in Eingriff zu kommen, wobei die Vorrichtung Folgendes umfasst:eine Endkappe (16, 116) mit einer ersten axialen Fläche (38, 138) und einer zweiten axialen Fläche (40, 140), die gegenüber der ersten axialen Fläche (38, 138) angeordnet ist, sowie einer äußeren radialen Fläche (48, 148) quer zu der ersten (38. 138) und zweiten axialen Fläche (40, 140), wobei die erste axiale Fläche eingerichtet ist, um mit dem Ende des Filtermediums (12, 112) in Eingriff zu kommen; undmindestens einen Vorspannabschnitt (18, 118) mit einem proximalen Ende (18P, 118P), das mit der Endkappe (16, 116) einstückig gebildet ist, und wobei ein distales Ende (18D, 118D) des Vorspannabschnitts (18, 118) sich über die äußere radiale Fläche (48, 148) der Endkappe (16, 116) hinaus radial nach außen erstreckt,wobei die Endkappe (16, 116) und der mindestens eine Vorspannabschnitt (18, 118) aus einem ersten Material (M1) und einem zweiten Material (M2) gebildet sind, und wobei das zweite Material (M2) ein Kernelement des mindestens einen Vorspannabschnitts (18, 118) bildet und sich entlang mindestens eines Abschnitts einer Länge (L18, L118) des mindestens einen Vorspannabschnitts (18, 118) erstreckt, wobei das erste Material (M1) einen äußeren Körper bildet, der über dem zweiten Material (M2) derart gebildet ist, dass das erste Material (M1) mindestens einen Abschnitt von sowohl der Endkappe (16, 116) als auch dem mindestens einen Vorspannabschnitt (18, 118) definiert.
Patent IS-1467-B6 (IS)
Inventor: ANDREAS DAVID W
IPC: B65D81/34
Filed: 1989-03-13
Abstract: There is provided a package for use in the microwave heating of a plurality of elongate food pieces (34) such as French fried potatoes which benefit from having their surfaces crisped, browned or toasted. The package is characterized by an outer microwave transparent carton and an inner construction including at least one sheet formed into a plurality of longitudinally extending laterally spaced partitions (30) defining chambers for enclosing food pieces, and including also microwave receptive heating material (18) to heat at least two, preferably three and most especially all four surfaces of the food pieces. <IMAGE>
Patent CZ-279386-B6 (CZ)
Inventor: BLOUCHOUSE ROLAND
IPC: H01H33/42
Filed: 1991-02-22
Abstract: Jistič s kapalinovým tlumením obsahuje svisle pohyblivou ponornou tyč (95) opatřenou na svém horním konci odtlačovacím kotoučem (37) a kontaktním můstkem (39). Odtlačovací kotouč (37) je elektromagneticky spřažen s cívkou (35), a dále obsahuje prostředek (33) pro zajištění polohy ponorné tyče (95) v sepnutém stavu a dutinu (99) s tlumící kapalinou, do níž utěsněně zasahuje spodní konec ponorné tyče (95). Spodní část ponorné tyče (95) a/nebo dutina (99) naplněná kapalinou (101) mají podél osy (38) proměnný průřez.ŕ
Patent CZ-281535-B6 (CZ)
Title: Dosing apparatus of melted glass
Inventor: AUERBECK JIRI
IPC: C03B7/092
Filed: 1992-07-29
Abstract: Apparatus for dispensing gobs of molten glass at an adjustable rate includes a basin (4) of refractory material into which flows molten glass from a glassmaking furnace. The basin has an inner wall tapering downwardly/inwardly towards a bottom orifice (3) from which the gobs are dispensed. Rotatable within the basin is a helical screw (20) of complementary shape, of which the thread projects into the annular space between the screw and basin. In addition to being rotatable in either direction, to accelerate or retard the flow of glass, the screw may be moved along its axis to adjust the cross-sectional area of the glass-flow passage.
Patent CZ-281635-B6 (CZ)
Inventor: MCCULLOCH KEENAN RICHARD
IPC: C07D409/14
Filed: 1992-08-12
Abstract: Řešení se týká methansulfonátu kyseliny (E)-3-/2-n-butyl-1-/(karboxyfenyl)methyl/-1H-imidazol-5-yl/-2-(2-
-thienyl)methylpropenové, která je účinným antagonistou receptoru angiotensinu II. Farmaceutické prostředky s obsahem této látky je možno užít k léčení zvýšeného krevního tlaku, srdečního a ledvinového selhání. Řešení se rovněž týká způsobu výroby účinné látky, který spočívá v tom, že se na kyselinu (E)-3-/2-n-butyl-1-/(karboxyfenyl)methyl/-1H-imidazol-5-yl/-2-(2-thienyl)methyl-2-propenovou působí kyselinu methansulfonovou ve 2-propanolu při teplotě přibližně 8 .sup.o.n.C.
ŕ
Patent CZ-284554-B6 (CZ)
Title: Method of machining spherical surface and apparatus for making the same
Inventor: VAVRA JAROSLAV ING
IPC: B24B11/06
Filed: 1997-02-28
Abstract: The invention concerns the method of machining a spherical surface (41) of a sphere (4) on a stem (5) with the possibility of free spinning around the axis of the stem (5) and/or with the stem (5), during which the sphere is (4) pressed against the rotationally symmetric inner working surface (3) of the spinning tool (1) and the angles of the axes of the stem (5) and tool (1) are changed in relation to one another. The tool (1) is maintained in axial direction in an unchanging position and the spherical surface (41), pressed against the inner working surface (3) of the rotating tool (1), is worked under the disengaged line of the spherical surface (41) in one constant direction perpendicular to the axis of the stem of the spherical surface (41). The apparatus consists of the rotating tool (1) with rotationally symmetric inner working surface (3), on which the spherical surface (41) of the sphere (4), freely pivoted on the stem (5) and/or freely spinning with the stem (5), is engaged with the possibility of changing the mutual axial angles. The ratio of the radius (rB) of the spherical surface (41) to the radius of the curved inner working surface (3) of the tool (1) on the plane of the axis of this tool (1) ranges between 0 and 0.8.<IMAGE>
Patent SK-281178-B6 (SK)
Title: Process for the preparation of azithromycin dihydrochloride
Inventor: LOPOTAR NEVENKA
IPC: A61K31/00
Filed: 1995-04-13
Abstract: Process for the preparation of azithromycin dihydrochloride, characterized in that azithromycin monohydrate or azithromycin dihydrate dissolved in a lower (C1-C4) alcohol or lower (C3-C6) ketone is reacted with 1.6 to 2 equiv. of hydrogen chloride gas dissolved in a dry lower (C1-C4) alcohol at a concentration of 12 - 20% (w/v) and at a temperature from 10 DEG C to 15 DEG C, the obtained product is precipitated with a non-solvent at a temperature from 10 DEG C to 25 DEG C, the ratio solvent : non-solvent being from 1 : 1.8 to 1 : 8 (v/v), and then isolated by filtration. This azithromycin dihydrochloride is useful as an antibacterial agent with a broad-spectrum action.
Patent CZ-280090-B6 (CZ)
Inventor: KOVACS BARNA DIPL ING
IPC: B60S1/04
Filed: 1991-09-26
Abstract: Stírací zařízení obsahuje hnané stírací rameno  (2) a stírací lištu uspořádanou na nosném třmenu  (1) a na jednom volném konci stíracího ramena  (2) je vytvořeno hákovité zpětné rameno (21)  opatřené otvorem (22). Nosný třmen (1) je  prostřednictvím spojovacího dílu (3) spojen s  volným koncem stíracího ramena (2) a je výkyvně  uložen pomocí čepu (15), přičemž spojovací díl  (3) obsahuje ve tvaru U provedenou část (31) s  kratším ramenem (311) a delším ramenem (312) a  také západku (35), která zapadá do otvoru (22)  hákovitého zpětného ramena (21). Západka (35) je  vytvořena na spojovacím díle (3) v oblasti  vnitřní plochy jazyka (34) nástavce (32),  kryjící se s otvorem (22) hákovitého zpětného  ramena (21). Nástavec (32) tvoří ve tvaru U  provedené prodloužení delšího ramena (312)  obklopující volný konec hákovitého zpětného  ramena (21), kteréžto prodloužení je vytvořeno  jako jeden kus s částí (31) ve tvaru U a je  přivráceno k této části (31) a sestává ze zadní  stěny (33) v podstŕ
Patent CS-277450-B6 (CS)
Inventor: ORLIK IVO ING
IPC: C08K9/04
Filed: 1989-05-25
Abstract: Riešenie sa týká použitia alfaolefínovfrakcií C20-
24. C24-28 a C30+, s výhodou frakcií C24-28 a
C30+, připadne ich zmesi, ako pojidla na finálnu
úpravu přísad do polymérov.
Patent CS-276397-B6 (CS)
Inventor: BARTOSEK FRANTISEK ING
IPC: B02C25/00
Filed: 1987-11-09
Abstract: Zařízení se skládá z mlecí mísy a z běhounů.
Na čep běhounu je napojena úhlová páka,
jejíž druhý konec je spojen s hydraulickým
válcem a pod běhounem je umístěna
podpěrná kladka napojená na úhlový výkyvný
závěs, druhým koncem napojený na hydraulický
válec, přičemž oba hydraulické válce
jsou napojeny na společný zdroj tlakového
oleje, vybavený zařízením pro nastavení
potřebného tlaku. Úhlová páka je opatřená
aretačním zařízením a úhlový výkyvný závěs
má nastavitelný doraz a podpěrná kladka je
uložena výkyvně v rovině podélné a příčné.
Tímto uspořádáním tlak běhounu je ruěen
protitlakem podpěrné kladky, nedochází
k pohybovému namáhání mlecí mísy a seřízením
hydraulických tlaků je možno zvýšit
technologické využití mlýna.
Patent CZ-285529-B6 (CZ)
Title: Apparatus for filling, closing and sealing cardboard boxes
Inventor: SIZER CHARLES E
IPC: B65B55/02
Filed: 1993-10-01
Abstract: An ultraviolet (UV) sterilization system for food cartons is disclosed. An elongated UV lamp (6) is mounted in a housing (12). A parabolic cylinder reflector (52) is mounted in the housing with the focus of the reflector coinciding with the axis of the arc (68) in the UV lamp. The shape of the parabolic reflector directs radiation from the lamp into cartons positioned on a conveyor below the lamp. The axis of the arc is parallel to the direction of movement of the cartons on the conveyor. The front surface of the reflector also absorbs heat from the lamp and heat is removed from the reflector (52) by circulating air (Fig. 4) over the back surface of the reflector. <IMAGE>
Patent SK-283360-B6 (SK)
Title: Feeding conduct for electric vehicle and transportation system fed by this conduct
Inventor: SICILIANO VITO
IPC: B60M1/10
Filed: 1996-08-21
Abstract: The feeding conduct (1) for electric vehicle (80), in which the hollow elongated isolation box (4) carries in its upper part the number of conductive boards (34) arranged is the track (8) of the electric vehicle (80), which are separated by isolation members (37), inserted between neighbouring conductive boards (34). In the box (4) there is elastically deformable striped conductive member (60) imposed, which is arranged in the track of the vehicle. The striped member comprises the stripe of ferro-magnetic material (65). The conductive striped member (60) is draught by the magnetic field created by electro-magnets (84), which are fixed to the electric vehicle (80), by which the part (60a) of the striped conductive member (60) is curved to the conductive boards (34) and at least one board (34) is interconnected with the feeding conduct (17), which is carried inside of the box. The electric vehicle has at least one collector (87) for connection with the fed board (34), which secures for the vehicle the electric feeding.
Patent CZ-302366-B6 (CZ)
Title: Method for recombinant production of heterologous polypeptide by making use of peptide exhibiting auto-proteolytic activity
Inventor: STEMPFER GUENTER
IPC: C12P21/02
Filed: 2000-08-07
Abstract: The present invention relates to a process for the recombinant production of a desired heterologous polypeptide with a clearly defined homogeneous N-terminus in a bacterial host cell, wherein a fusion protein which comprises a peptide with the autoproteolytic activity of an autoprotease Nepro from a pestivirus and the heterologous polypeptide is formed in the form of cytoplasmic inclusion bodies in the host cell, and then the inclusion bodies are isolated and treated so that the desired heterologous polypeptide is cleaved autoproteolytically by the action of Nepro activity from the fusion protein.
Patent CZ-301084-B6 (CZ)
Title: Use of diatomaceous earth-based material as ingredient for increasing wettability in cooling liquids of machine tools and in compositions for treating surfaces prior coating
Inventor: FRIEDL FRANTISEK
IPC: B01J20/14
Filed: 2006-08-01
Abstract: The present invention relates to the use of a material based on diatomaceous earth and containing 40 to 96 percent by weight of SiOi2, 1 to 30 percent by weight of Ali2Oi3 and 1 to 30 percent by weight of Fei2Oi3, whereas the amount of particles with size ranging from 0.00001 do 0.009 mm is 2 to 98 percent by weight and the amount of particles with the size ranging from 0.009 to 1.0 mm is 2 to 98 percent by weight, as an ingredient for increasing wettability in the cooling liquids for machine tools and in compositions for treating surfaces prior coating.
Patent CZ-306528-B6 (CZ)
Title: Connection of a pneumatic cylinder for controlling devices, especially in explosive and aggressive environments
Inventor: BARTÁK TOMÁŠ
IPC: F15B20/00
Filed: 2010-05-07
Abstract: Connection of a pneumatic cylinder for controlling devices, especially in explosive and aggressive environments, contains a structural element or elements containing aluminium or its alloys. Besides the single- or double-acting pneumatic cylinder (1), it comprises at least the source (2) of compressed air and the multi-way air distributor (3). According to the first option, the source (2) of compressed air is connected to the input of the three-way air distributor (3), while the output of the three-way air distributor (3) is connected to the output of the pneumatic cylinder (1) and also parallel to the one-way vent valve (5). According to the second option, the source (2) of the compressed air, behind which there is, in series, placed the inlet one-way valve (4), is connected to the input of the three-way air distributor (3) and, at the same time, it is, via the limiter (6) of pressure, connected parallel to the output of the three-way air distributor (3), to the output of the pneumatic cylinder (1) and to the one-way vent valve (5). Similar connection, in the sense of the second option, then represents connection of the four-way air distributor (3), the five-way air distributor (3) and two three-way air distributors (3).
Patent CZ-303523-B6 (CZ)
Title: Jaw holder of glass article remover, especially container glass remover
Inventor: ANDRYSEK JOSEF
IPC: C03B9/44
Filed: 2011-09-21
Abstract: Each holder (1, 100) is provided in its substantially vertically oriented portions (3, 30) with a groove (5) performed on the upper end and serving for attachment of the holders (1, 100) to a remover mechanism. Stops (6, 60) for quick and exact adjustment and with their upper surfaces situated below the level of the groove (5) and above a securing post (11, 110) are provided on the sides turned toward the glass article being removed. The securing post (11, 110) for fixing an insert (2, 20) has its upper surface in the level below the upper surface of the stops (6, 60) while the lower surface thereof reaches up to the level of a bottom surface of an upper plate (8) of horizontal portions (4, 40). Each holder (1, 100) is provided in its horizontal portion (4, 40) with a cavity (10), for insertion of the insert (2, 20) of substantially external shape corresponding with the insert (2, 200). The cavity (10) is defined between the upper plate (8), the lower plate (9) and lateral walls (18). On the side turned toward the glass article being removed, both the plates (8, 9) along with the lateral walls (18) are shaped to a semi-circular cutout (4a). Each insert (2, 20) comprises a securing opening (16) for inserting therethrough a securing pin (13) into the securing post (11, 110).
Patent CZ-292892-B6 (CZ)
Title: Process for producing polyamides from amino carboxylic acid compounds
Inventor: MOHRSCHLADT RALF
IPC: C08G69/08
Filed: 1999-02-23
Abstract: Polyamides are produced by reacting aminocarboxylic acid compounds of the general formula Hi2N-(CHi2)im-C(O)Re1 (I) wherein Re1 is OH, O-C1-12-alkyl or NRe2Re3, wherein Re2 and Re3 are independently hydrogen, alkyl containing 1 to 12 carbon atoms or cycloalkyl having 5 to 8 carbon atoms, and m is an integer from 3 to 12, optionally in a mixture with aminonitriles and their hydrolysis products and optionally in the presence of water, in a liquid phase at elevated pressure and elevated temperature in the presence of metal oxides as heterogeneous catalysts, the metal oxides being used in a form which permits mechanical removal from the reaction mixture and being removed from the reaction mixture during or after the polymerization.
Patent CZ-294977-B6 (CZ)
Title: Control adapter for a valve
Inventor: SEERUP JORGEN
IPC: F25B41/355
Filed: 2000-09-13
Abstract: The present invention relates to a control adapter for a valve being provided with a support (1) that can be fastened on a valve casing, further with a heat-expanding element (3), such as a wax shell mounted on the support (1), having on outlet side an adjusting member (5) for a adjusting a valve pin, with an electric heating element (H) adjacent to the heat-expanding element (3), and a control circuit (20) for controlling heating in dependence on a control voltage determining opening position of the valve. It further comprises a position measurement device (11) that provides a position signal in dependence on position of the adjusting member (5) or a component adjustable thereby. The control circuit (20) controls heating of the electric heating element (H) in dependence on both a control signal and the position signal.
Patent CZ-300395-B6 (CZ)
Title: Medicament for inhibition of smooth muscle cell proliferation, for treatment of smooth muscle cell-rich vascular lesions, for treatment of lesions after balloon angioplasty and for treatment of patients after stent implantation
Inventor: PATTERSON WINSTON CAMPBELL
IPC: A61K31/445
Filed: 2000-01-18
Abstract: The present invention relates to the use of 4-H-1-benzopyran-4-one derivative of the general formula I, in which have the general symbols its specific defined meanings, for producing pharmaceutics for smooth muscle cell proliferation inhibition, for treating vascular lesions using smooth muscle cell-rich, for treating lesions after damage caused by percutaneous balloon angioplasty and for treatment of patients after stent implantation.
Patent CZ-297988-B6 (CZ)
Title: Device for dividing heating costs
Inventor: GLASER FRIEDRICH
IPC: G01K17/02
Filed: 2001-12-03
Abstract: The present invention relates to a heating cost divider for measurement of heat use from heating bodies having two-part housing (1) comprising two parts (2, 3) that are joined together by a lead seal (4) wherein the separation of these parts (2, 3) is only possible by breakage of the lead seal (4). The seal (4) is provided with a head (8) and a shaft (12) together with a locking mechanism (9) for holding it in place. The invention is characterized in that the seal (4) head (8) is provided with an open gripping part, which incorporates a weak point (17) where the seal (4) will break and destroy the seal (4) when the seal (4) head (8) is drawn out.
Patent SK-287807-B6 (SK)
Title: A process for the preparation of 4-(3-chlorophenyl)-6-[(4- chlorophenyl)hydroxy(1-methyl-1 H -imidazol-5-yl)methyl]-1- methyl-2(1 H )-quinolinone
Inventor: FILLIERS WALTER FERDINAND MARIA
IPC: C07D401/06
Filed: 2002-03-05
Abstract: A process for the preparation of 4-(3-chlorophenyl)-6-[(4- chlorophenyl)hydroxy(1-methyl-1 H -imidazol-5-yl)methyl]-1- methyl-2(1 H )-quinolinone of formula (III) farmaceutically acceptable salts thereof which comprises reacting 6-(4-chlorobenzoyl)-4-(3-chlorophenyl)-1-methyl-2(1H)-quinolinone (II) with a C6-alkyllithium compound, 1-methylimidazole and a tri(C4-6alkyl)silyl halid during temperature at least - 40°C.
Patent SK-286099-B6 (SK)
Title: Dispenser for a cream-type material or material which can be deposited by applying it on a surface
Inventor: HOFEL NORBERT
IPC: A45D40/04
Filed: 2002-04-23
Abstract: Disclosed is a dispenser (1) for a cream-type material or material which can be deposited by applying it to a surface, comprising a chamber (5) with a discharge opening (10) for receiving and storing said material, a spindle which is rotationally and longitudinally-axially arranged in the chamber (5), a piston (18) which can move inside said chamber (5) along the spindle (16) by rotation thereof (18), and an actuating element (4) for the spindle, which is rotationally fixed to said spindle (16), said spindle (16) being provided with a least two regions (16a, 16b) having various thread pitches along the length thereof.