baber/WOPTO huggingface dataset:
Patent DE-3921667-A1 (DE)
Title: Pneumatic pressure regulator with switchable output pressure - has delivery valve interacting with reference pressure surface with pressure-isolated regions
Inventor: HAHN RAINER
IPC: G05D16/06
Filed: 1989-07-01
Abstract: The pneumatic pressure regulator has a delivery valve interacting with a reference pressure surface (5) movable w.r.t. an output pressure chamber (6) and a control spring acting on the reference surface. The reference pressure surface is divided on the reference pressure-side into two or more regions (8,9) which are pressure-isolated from each other and the output chamber. At least one region is set to a pressure different from the reference pressure in the other region. USE/ADVANTAGE - The pneumatic pressure regulator's output pressure can be changed over with small control forces and displacements without expending additional energy.
Patent DE-3922959-A1 (DE)
Title: Method and circuitry for controlling an electrode potential in electrolysis
Inventor: DITTRICH KLAUS DIPL PHYS
IPC: C25C7/06
Filed: 1989-07-12
Abstract: The invention relates to a method and a circuit arrangement (circuitry, circuit configuration) for controlling an electrode potential in electrolysis, especially multicomponent depletion electrolysis, preferably in silver recovery from photographic solutions, via a control circuit whose control signal is fed to a power rectifier arranged in the electrolytic circuit, and which control circuit is driven by an electrode potential which is affected by the electrolytic current and is measured by means of a reference electrode. In order to achieve a freely selectable setpoint for the electrode potential and controlling it as a function of the metal ion concentration in the electrolyte (1), the electrode potential signal derived from the electrolytic current is corrected in the control circuit by a potential which is not affected by the electrolytic current, depends only on the metal ion concentration and is measured by a second measuring electrode (4), and is achieved by a suitable circuit configuration. Thus a high and high-quality metal deposition performance is achieved while minimising the decomposition of the bath, even at very low metal ion concentrations, and a high reuse rate of demetallised solutions is achieved. <IMAGE>
Patent DE-3926210-A1 (DE)
Title: Land vehicle rear axle suspension - allows limited sideways motion accompanied by opposing rolling motion of body
Inventor: WOLF FRANZ JOSEF
IPC: B60G9/04
Filed: 1989-08-08
Abstract: The axle suspension (2, 2'), esp. for land vehicle rear axles (3), supports a vehicle body (1) w.r.t. an axle or chassis member. When cornering for instance, the mount allows a limited transverse displacement of the body w.r.t. the axle or chassis. At the same time, a guide member (11) between the axle or chassis and body forces the body to roll slightly in an opposing direction to the transverse motion. USE/ADVANTAGE - Improved driving comfort of vehicle with a relatively simple, low cost construction.
Patent DE-3930021-A1 (DE)
Inventor: FORSTER PETER
IPC: B68G5/02
Filed: 1989-09-08
Abstract: PCT No. PCT/EP90/01513 Sec. 371 Date Jun. 24, 1991 Sec. 102(e) Date Jun. 24, 1991 PCT Filed Sep. 7, 1990 PCT Pub. No. WO91/03193 PCT Pub. Date Mar. 21, 1991.The upper seat part according to the instant invention is provided with several ridges 2, 3, 4, 5, 6 extending from its bottom part 1 upward, said ridges being approximately parallel to each other as well as transversal to the seating direction, whereby the forward ridges 2, 3 are inclined toward the front while the other ridges 4, 5, 6 are inclined toward the back. The ridges 2, 3 are equipped laterally, at their upper free ends with projections 7,8 extending approximately at a parallel to the bottom part 1 toward the back side while the ridges 4, 5, 6 inclined toward the back are provided with projections 9, 10, 11 laterally at their upper free ends, said projections extending also approximately at a parallel to the bottom plate 1, however toward the front, so that the projections 7, 8, 9, 10, 11 partly cover the ridge intervals 12 and constitute a seating surface 13 together with the upper free ends of the ridges 1, 3, 4, 5, 6.
Patent DE-3931956-A1 (DE)
Title: Representative milk sampling without delays - using multiple phase procedures involving filling and emptying of sampling container
Inventor: SCHOENHUBER MAX-JOSEF DR ING
IPC: G01N35/00
Filed: 1989-09-25
Abstract: In a first phase, the whole milk flow is fed in parallel to a flushing container and into a small sampling container with closed outlet until an upper fill level is reached. The milk is then diverted to the larger container.  The sampling container is emptied during a second phase. A first partial vol. is fed directly and unsampled into an air separator until a lower level is reached in the sampling container. A second vol. is emptied into the flushing container. USE/ADVANTAGE - Optimally representative, minimal delay milk sampling.
Patent DE-3936426-A1 (DE)
Title: Socket for catch of lock for motor vehicle door - has contact surface for catch formed by rotatable bolt sheathed in plastics
Inventor: KAMMERHOFF RUEDIGER
IPC: E05B15/02
Filed: 1989-11-02
Abstract: The lock for the door of a motor vehicle has a catch which  engages slots (7) in a fitting (1) which is fixed to the vehicle structure. The fitting (1) has a U shaped cross-section with fixing lugs (5a,5b) extending from the end of each lug. A bolt (10) enclosed in a plastics sheath (11) is fitted at one end of the U-section. The bolt (10) is so mounted that it is free to rotate together with the plastic sheath (11).  When the lock catch engages the slot (7) it presses against the plastics sheath (11) and rotates the  bolt (10) each time that the lock is closed. The rotation of the bolt (10) distributes the wear around the periphery of the sheath to provide a longer service life. USE - Lock for motor vehicle door.
Patent DE-4006562-A1 (DE)
Inventor: MUELLER FRIEDRICH
IPC: F24D19/10
Filed: 1990-03-02
Abstract: A method for controlling an installation with solar collectors provides that a threshold value is specified for a temperature measured at a heat emitting device (3, 11, 15) and that when the temperature at the heat emitting device exceeds the threshold value, a heat carrier flow is interrupted until the temperature at the solar collector (1) has reached a specified limiting value. <IMAGE>
Patent DE-4020030-A1 (DE)
Title: Weft shear for loom - has independent drive mechanism, allowing pneumatically driven shear blade to act independently of loom motion
Inventor: HAEUSSLER HORST DIPL ING
IPC: D03D49/70
Filed: 1990-06-23
Abstract: A thread cutting mechanism on a loom is independent of the weft insertion or loom drive. A pneumatic cylinder drive is connected to the first shear blade. A second section is hinged to the first as an angular lever, with the lever arm enclosed in a side gate. The pneumatic cylinder is pref. fixed to the loom in a suitable position, and connected to the air supply. The first blade is attached to the cylinder mechanism. Hinged by a nut and bolt, is the angular shear with lever arm. The lever arm is enclosed in a slot formed on a bracket. Two stops at the end of the slot form a gate, to press on the end of the lever. This closes the shear as the cylinder presses forward the first blade, and opens the shear as it springs back. USE - To shear the weft independently of the loom motion, and when it has been determined that no further action on the weft insert is necessary.
Patent DE-4024077-A1 (DE)
Title: Increasing vol. of continuous synthetic multifilament yarn - by winding around grooved wheels in triangular formation
Inventor: SCHWEIZER UDO
IPC: D02J3/02
Filed: 1990-07-28
Abstract: Increase of the vol. of continuous synthetic multifilament yarn which has been texturised by crimping, flexing and friction comprises subjecting it to further friction by winding it around three grooved wheels, in triangular formation, in which the bottom axle is brought round until the yarn forms a tight twist.  The appts. is also claimed. USE - To bulk up the yarn, giving better handle and cover in the fabric, and to resembly natural fibres.  The texturised yarn  is wound in direction  over the grooved wheels  and the bottom wheel  is turned  in such a manner that the yarn : forms a twist , and that the surfaces of the yarn are brought close to each other, the twist angle being at least 180 deg.
Patent DE-4026236-A1 (DE)
Title: Tilting-window ventilator system - has isosceles-triangle side strips protruding above inner frame towards lintel
Inventor: SCHMIDT HELMUT
IPC: E06B7/06
Filed: 1990-08-18
Abstract: The window ventilator comprises an insert consisting of two side strips (1) joined by a horizontal middle one (2). This is clamped into position between the outer frame (4) in the roof or wall and the inner one (3) tilting on a horizontal axis. Each side strip is in the shape of an isosceles triangle, one of the equal sides protruding beyond the inner frame towards the lintel (5), at which point it is secured to the middle strip, preferably detachably, by screws. USE/ADVANTAGE - Window ventilator system aids control of air supply.
Patent DE-4038476-A1 (DE)
Title: Prepn. of solid washing compsn. - by mixing aq. alkyl sulphate paste with sodium sulphate and/or aluminosilicate and shaping or grinding
Inventor: PANTHEL GUENTHER DR
IPC: C11D17/00
Filed: 1990-12-03
Abstract: A solid washing compsn. contg. an anionic surfactant and Na2SO4 and/or alumosilicate (pref. zeolite A) is prepd. by mixing 100 pts.wt. of an aq. 40-60 wt.% alkyl sulphate paste at 20-80 deg.C with (a) 15-100 pts. of Na2SO4 and/or (b) 10-100 pts. of alumosilicate, and then shaping to pieces at 20-60 deg.C and/or grinding. - Pref. the paste contains 16/18C tallow alkyl sulphate Na salt. The alumosilicate is zeolite A contg. water. The additives are dispersed in the paste at 60-80 deg.C, and the liq. mixt. is transferred to a water-cooled extruder in which it is cooled to solidification and comminuted at the same time.
Patent DE-4107857-A1 (DE)
Inventor: HIMMELSBACH FRANK DIPL CHEM DR
IPC: A61P29/00
Filed: 1991-03-12
Abstract: The invention relates to cyclic urea derivatives of general formula    <IMAGE>  (I)  wherein Ra, Rb, X and Y are as defined herein, pharmaceutical compositions containing the derivatives and processes for preparing them.
Patent DE-4109533-A1 (DE)
Title: Silicon chip with low-carrier-density oxide passivation - prevents significant narrowing of space-charge region on both sides of PN junctions adjoining diffusion regions
Inventor: CAFFIER ROBERT DIPL PHYS
IPC: H01L23/29
Filed: 1991-03-22
Abstract: Within the Si body (1) a heavily p-doped region (22) borders on a lightly n-doped region (2) in which a more heavily doped planar region (4) is contacted by an anode (11). Sepg. diffusion regions (7) of p-type material extend right through the body (1) to a cathode (12). The SiOx layer (10), grown thermally on the Si, extends over the p-n junctions (6,8) and the transition (5) between the planar region (4) and n-region (2). The charge carrier density in this layer (10) is not more than 5 x 10 to power 11 per sq.cm. ADVANTAGE - Variability, differential thermal expansion and poor structurability of glass passivation layers are avoided.
Patent DE-4118626-A1 (DE)
Title: Oxidn. of organic substances in waste water - by reaction with hydrogen peroxide in presence of insol. cupric cpd. and air
Inventor: GRAETZEL MICHAEL PROF DR
IPC: C02F1/72
Filed: 1991-06-06
Abstract: Catalytic oxidn. of organic substances in waste water is effected by reaction with H2O2 in the presence of an insol. cupric cpd. (I) and air. Pref. (I) is CuO and is used in the form of: a solid (Ia) produced by hydrolysing CuCl2 and calcining the prod. at 500 deg.C; or a solid (Ib) produced by impregnating a zeolite or bentonite support with a cupric salt soln. and heating at 120-130 deg.C to form oligomeric CuO. Catalysts (Ib) have a Cu content of 0.15-0.25 mmole/g. Oxidn. is effected at 20-65 (esp. 45-62) deg.C in the presence of 0.1-5 (esp. 0.5-2.5) g/l (Ia) or 0.1-10 (esp. 0.5-5) g/l (Ib). The H2O2 concn. corresponds to 0.125 mmole per litre of waste water with a total organic carbon (TOC) content of 1000 ppm. USE/ADVANTAGE - The process may be used to treat industrial waste waters, e.g. from the mfr. of nitroxylene. Organic contaminants are converted mainly to CO2 without formation of solid residues. (I) is easily sepd. and may be re-used repeatedly. Sub-stoichiometric amts. of H2O2 may be used.
Patent DE-4120952-A1 (DE)
Title: Earthing spring for electric safety plug - is formed from stamped sheet metal strip with upstanding lugs providing contact element
Inventor: WAIBLE THOMAS
IPC: H01R13/655
Filed: 1991-06-25
Abstract: The earthing spring has a pair of clip arms stamped out from a sheet metal strip (30) for securing the earthing spring to the plug bridge. A contact spring fits into a complementary chamber of this bridge for cooperating with the plug earth pin. The contact spring is formed by two curved lugs (23, 34) coaxial to a bore (35) in the stamped metal strip (9), bent out of the plane of the latter, an angled edge (39, 40) being formed in the transition zone between the bore and each lug. The lugs are curved together to fit around the end of the earthing pin fitting through the bore. ADVANTAGE - Improved strength from more material between bore and stamped out tongues and shape of bridging piece.
Patent DE-4122316-A1 (DE)
Title: Electronic music drum - has inner surface of conical resonator chamber covered with sound absorbent material with output through microphone
Inventor: RINSKI WERNER
IPC: G10H3/14
Filed: 1991-07-05
Abstract: The resonator chamber (2) has a microphone (4) set at a mid position. The flexible surface of the drum (17) is secured by a clamping ring (12) with screws (11) for fixing. Threaded nuts (14) are retained on the outer surface of the drum body. The internal surface of the resonator chamber is coated with a sound absorbing material (19) such that external transmission of vibration is kept to a min. Resonator openings (20) are formed in the tip of the cone. All sound output is via the amplifier and loudspeaker coupled to the microphone. ADVANTAGE - Limits sound output directly into room.
Patent DE-4134077-A1 (DE)
Inventor: NICKEL DIETER DR
IPC: C11D17/00
Filed: 1991-10-15
Abstract: The storage stability and fluidity of water-based, relatively low concentration liquid alkylglycoside compositions are to be improved, and their handling during use is to be made easier by increasing their viscosity with a non-alkylglycosidic active substance in amounts as reduced as possible. For this purpose, gel-like aqueous mixtures are used, essentially composed of 2 % to 15 % by weight of an alkylglycoside having the formula R<1>-O(G)n, in which R<1> stands for an alkyl residue with 8 to 22 C atoms; G stands for a glycose unit and n is a number from 1 to 10; 0.05 % to 2 % by weight of an anionic surfactant of the sulphate or sulphonate type, the ratio by weight between alkylglycoside and sulphate and/or sulphonate being comprised between 40:1 to 5:1; and 83 % to 97.95 % by weight of water or a mixture of water with a water-miscible organic solvent.
Patent DE-4136989-A1 (DE)
Title: Fuel injection pump for IC engine - has injection divided into pre- and main processes and instead of unloader valve has adjustable throttling for damping injection oscillations
Inventor: GOLLE HERMANN DR ING
IPC: F02M55/04
Filed: 1991-11-11
Abstract: Two independently rotatably rotary control rings (4, 5) are axially fixed on a non-rotary pump piston (2) connected to a drive system. The piston has a longitudinal channel (14) open in a high pressure chamber (3) with two transversal apertures (15, 16). Two inclined control edges (12, 13) in rotary control rings (4, 5) or inclined slots in the pump piston or a control edge in a rotary control ring (4 or 5) and an inclined slot in the pump piston correspond with control holes (15, 16) and via known mechanism (8, 9, 10, 11) independently achieved rotation of the rotary control rings (4, 5) regulates the commencement and end of delivery. USE/ADVANTAGE - To overcome disadvantages experienced with known fuel injection systems in regulating the commencement and end of injection.
Patent DE-4139379-A1 (DE)
Title: Mobile remote-controlled machine for demolition, loading, and digging - has hydraulic cylinders, which are fixed to permit independent control consisting of proportional, path and double return valves
Inventor: STOELZEL DIETER DR
IPC: E02F3/42
Filed: 1991-11-29
Abstract: The first cylinder (9) is fastened pivoted to top frame and the first arm part (3). The second cylinder (10) is fastened to frame and second arm part (4). The centre distances between the bearing points (13,18) in of first arm part and second cylinder in top frame, and the distance of the bearing points (14,19) in the second arm part, are of the same size. The hydraulic control for both cylinders consists of a proportional valve, two path valves, and two releasable double return valves. ADVANTAGE - Requires reduced time for work cycle, improved cantilever arm movement.
Patent DE-4142324-A1 (DE)
Title: Hydraulic clutch control for vehicle - has control disc with flow openings which is displaced with piston movement
Inventor: MARTIN HARRY
IPC: B60K23/02
Filed: 1991-12-20
Abstract: The hydraulic mechanism is for controlling a separable friction plate clutch in the drive train of a vehicle. It has a control disc (13) with flow control openings (13a) displaceably mounted in the actuator cylinder (3) of a hydraulic clutch unit. On actuating the clutch pedal the double piston (8) on the piston rod (2) and the control disc are displaced to create different flow cross sections. USE/ADVANTAGE - Clutch engagement control which avoids torque peaks in the drive train and gives the driver a feel of dynamic movement.
Patent DE-4201799-A1 (DE)
Inventor: WOLF FRANZ JOSEF
IPC: F16L33/00
Filed: 1992-01-23
Abstract: Described is a socket for pipes, in particular plastic pipes. The socket forms a permanently sealed torque-locked connection between pipe and socket by virtue of the fact that longitudinal ribbing is located in the direction of fitting of the pipe, upstream of radial ribbing, which acts as a seal, on the socket. The radial ribbing has at least one cylindrical sealing surface which is relatively wide in the longitudinal direct on in order to produce an all-over seal with the inside wall for the pipe fitted to the socket.
Patent DE-4205442-A1 (DE)
Title: Gasket section of rubber elastic material esp. foam rubber - seals gap between two structural parts e.g. respectively lamp cover glass and housing of spray-surge water protection lamp
Inventor: BLAU DIETER
IPC: F16J15/02
Filed: 1992-02-22
Abstract: The first structural part (34) has a reception slot (25) for the gasket section (10) against which the second structural part presents a flat surface for making contact. The gasket section is provided with two hollow cvavities (30,31) extending continuously inside the section (10), as well as with at least respectively two sealing and clamping lips formed on the section outer surface. The gasket section for holding in the reception slot (25) defined by the diverging walls (37) has a main section essentially with congruent inclined side walls which in the transition region are drawn to a section base with respectively a turned up slot (17) for the clamping lips (18) which essentially protrude vertically to the main cross sectional axis of the section (10). The head distance of the clamping lips (18) corresponds to about the cross sectional measurement of the gasket section head (12). ADVANTAGE - Formed in simple shape and held esp. reliably and precisely in reception slot of corresp. structural part. Ensures excellent sealing against spray and water currents. For sealing gap between e.g. door frame and door, or between lamp and lamp housing.
Patent DE-4206837-A1 (DE)
Inventor: KUPPER DETLEV DIPL ING
IPC: F27B21/00
Filed: 1992-03-04
Abstract: The invention relates to the cooling of warm bulk material, in particular cement clinker, ore material or the like, in a grate cooler, on the cooling grate surface of which the bulk material is transported along and at the same time passed through by a cooling-gas flow. To achieve great cooling efficiency with a relatively small grate surface, at least a part quantity of bulk material is drawn off downwards from the bulk-material layer by gravity on the transport path of the bulk material before the cooler outlet.
Patent DE-4209921-A1 (DE)
Title: Mosquito coil made of wood fibre - consists of spiral with 0,4 to 0,7 kg/dm3 density, and coating of active ingredient
Inventor: ELSNER THOMAS
IPC: A01N25/20
Filed: 1992-03-27
Abstract: The mosquito coil is spiral shaped, and is stamped out of a panel of wood chips and/or wood fibres. The spiral (1) contains an active ingredient. The density of the spiral material is 0,4 to 0,7 kg/dm3, and the spiral is coated with the active ingredient. The average size of the wood chips is between 2 x 0,5 x 0,1mm and 10 x 3 x 2mm. The average length of fibres is between 3mm and 15mm. The wood chips/fibres are compressed into panels. A pressure is used, which produces panels, which have the mentioned density when dry. The coils are coated with the active ingredient, by rollers, before or after stamping out. USE/ADVANTAGE - Mosquito coil of simple mfr. does not break, is lightweight and smooth, permits active ingredient to be very effective.
Patent DE-4210018-A1 (DE)
Title: Inductive proximity switch for welding appts. - has non-ferrite coil contained within switch housing and enclosed by earthed screening for preventing induced voltages
Inventor: DOLDERER PETER
IPC: H03K17/95
Filed: 1992-03-27
Abstract: The proximity switch has an oscillator with a coil (18) and a capacitor oscillation circuit, coupled to an oscillator amplifier, with a demodulator providing an output signal representing the oscillation amplitude of the oscillator. The coil comprises an air coil contained within a housing (12) and enclosed by a screening (20) which is coupled to earth via a capacitor (22). The oscillation circuit can be coupled to the oscillator amplifier via a high-pass filter, a second high-pass filter between the oscillator amplifier and a demodulator. USE - For use adjacent welding electrodes and supply leads of point welding transformer without impaired function.
Patent DE-4214046-A1 (DE)
Title: Chain wheel for guiding delivery chain of tube chain conveyor - involves each tooth in area of its point narrowed in relation to remainder of tooth body area
Inventor: SCHRAGE REMMER
IPC: B65G23/06
Filed: 1992-04-29
Abstract: The tooth point is provided for engagement in a member of a delivery chain. Each tooth (2) in the area of its point (3) narrows in its material thickness in relation to the remainder of the tooth body area (4), so that the tooth (2), pref. on both sides of the foot of the point (3) has a material shoulder or ledge (5), which forms a stop and location surface for the chain member (7) engaged by the tooth (2). The transition between the tooth point and the material shoulder has a throat-like formation. A central interruption of the material shoulder (5) is provided for the run-out of delivered material residue. The shoulder surface in the area of the interruption is lowered from the tooth point (3) as a run-out slide (6). USE/ADVANTAGE - A chain wheel in which the problem of tooth breakage is reduced.
Patent DE-4228197-A1 (DE)
Title: Ballast keel for electrically driven boat - has batteries supplying drive used as ballast weight within hollow keel
IPC: B63B43/04
Filed: 1992-08-25
Abstract: The ballast keel is formed as a hollow body (5) housing the electric batteries (6) for the drive, which act as the ballast weight. The keel may have a blade at its bottom end, or a hollow cylinder. Pref. the batteries are embedded in a relatively heavy material, so that the interior of the hollow keel is fully filled, e.g. with a relatively heavy liquid. The interior of the keel is accessible via a water-tight cover, to allow battery replacement. ADVANTAGE - Allows useful utilisation of relatively heavy electric batteries as ballast.