baber/WOPTO huggingface dataset:
Patent DE-4024624-A1 (DE)
Title: Interferometric analyser for energy distribution of charged particles - uses Fourier analysis to measure source distribution and characteristic losses
Inventor: HASSELBACH FRANZ DR
IPC: H01J49/46
Filed: 1990-08-03
Abstract: The Fourier spectroscopic measure for energy distribution of charged particles, comprises a beam source for providing coherent charged particles; a device modifying the spectral distribution of the particles, an electron or ion optical biprism beam splitter for producing separate coherent wave packets, a device longitudinally displaying the wave packets, a biprism or telescopic lens for producing interference of the wave packets, a sensor detecting the interference and appts. for quantitatively Fourier analysis the interference pattern. USE - Measuring spectral distribution of electron and ion sources and characteristic energy loss in electronmicroscopes.
Patent DE-4024936-A1 (DE)
Title: Twin-wall tube bending process - by inserting container-shaped FRP packing piece having axial slits into annular gap between inner and outer tubes
Inventor: HEIM EUGEN
IPC: B21D9/03
Filed: 1990-08-06
Abstract: Processes for bending twin-walled tubes (20) involve the insertion of a mandrel (11) into the inner tube (21) and filling the gap (22) between the tubes (21,23) with  a material such as sand.  In the new process a container-shaped packing device (30) with axial slits, is inserted into the annular gap between the tubes (21,23) and bends with the tubes. The container (30) is mfd. in a fibre-reinforced plastic in the form of axial fingers held at onem end (32). The fibres may be of glass, carbon or aramid. USE/ADVANTAGE - The process and device provide a simpler and faster method of bending double-walled tube without the occurence of folding.
Patent DE-4027949-A1 (DE)
Title: Underwater electroacoustic converter - comprises piezoelectric vibrator with sound head on radiation side and cylindrical housing enclosing vibrator
Inventor: HILMERS HORST
IPC: B06B1/06
Filed: 1990-09-04
Abstract: The electroacoustic converter comprises a piezoelectric vibrator with a sound head on the radiation side, together with a cylindrical housing enclosing the vibrator. The external dia. of the head is appreciably less than that of the housing. The space between is sealed by a ring of material giving a low deg. of sound radiation, and which fills most of it. The ring is fixed to the housing and sealed to the head. The head and housing can be enclosed in a layer of vulcanised indiarubber. The ring can be of hard plastic, or glass-fibre-reinforced epoxy resin, polyester resin or polycarbonate. USE/ADVANTAGE - For underwater use, heads of different dias. can be installed in the same housing of a Sonar base. (5pp Dwg.No.1/2)
Patent DE-4028599-A1 (DE)
Title: Level adjuster for domestic appliance e.g. dishwasher -  raises and lowers backwall of cabinet by rotation of cam wheel resting on slotted yoke
Inventor: SCHROEDER MANFRED
IPC: F16M7/00
Filed: 1990-09-08
Abstract: In the middle of the back of the appliance a cam wheel (17) is fitted with a bushing (16) to an adjustment rod (14) which can be rotated by means of a screwdriver slot in its end (14a). Rotation of the cam wheel (17) on its supporting block (21) raises or lowers the rear wall (19) as the other end (14b) of the shaft (14) moves within a vertical slot (28) in the longer limb (20b) of a U-section yoke (20) standing on the floor. ADVANTAGE - Robust and reliable device can be mfd. and assembled at less cost.
Patent DE-4029399-A1 (DE)
Title: Opto-coupler for digital signal transmission -  uses control stage for counter-phase control of parallel elements
Inventor: SCHYMONSKI ARNOLD DIPL ING
IPC: H04L25/26
Filed: 1990-09-17
Abstract: The opto-coupler for digital signal transmission between electrically separated circuits comprises two opto-coupler elements, (5, 7, 6, 8) suitable for use in hazardous areas, which are connected in a parallel circuit, preceded by a control stage (1) receiving the signals to be transmitted. The opto-coupler elements are operated in counter-phase, their phototransistors (7, 8) being connected in parallel in a differential circuit, their collectors are coupled to a common current source (9) and their emitters to respective inputs (15, 16) of a comparator (11) providing the output signal. USE/ADVANTAGE - Communication between intrinsically safe region, e.g. exposed to explosion or firedamp risk, h.v. or radiation treatment zone, and normal conditions region. Shorter switching times with normalised delays for switching on or off. Current saving with good temp. and long term stability.
Patent DE-4031289-A1 (DE)
Title: Oscillator with amplifier, and feedback elements - has flat capacitor as frequency determining and equalising element
Inventor: LIEBEL WERNER
IPC: H03B5/12
Filed: 1990-10-04
Abstract: The assembly contains an oscillator (1), an amplifier (2), and feedback elements (3). An oscillator frequency (fosc) appears at the circuit output (A). A capacitive, frequency determining, circuit element is formed as a flat surface capacitor, mfd. in thick- or thin-film technique. It forms an equaliser for the oscillator frequency. Pref. the capacitor consists of two metal layers, sandwiching a dielectric material. The layers may be formed thick-layer pastes, or thin-layer films. The dielectric in typically ceramic, temp.-stable with high dielectric constant. The capazcitor surface processing leads to frequency variation. ADVANTAGE - Simple, low-cost, and precise adjustment.
Patent DE-4037631-A1 (DE)
Title: Universal electrical switching device - uses potential energy of vertical water column for operating switch rod
IPC: H01H35/02
Filed: 1990-11-27
Abstract: The switching device has a vertical water column of given height and diameter providing a defined pressure, with pole chambers at each end of the column each provided with a movable membrane. The potential energy of the water column used to operate the switch rod, with a rotary bearing at the centre for reversing the relative position of the switch chambers. USE - For miniature switching device up to heavy current switching appts.
Patent DE-4102779-A1 (DE)
Title: Low pressure compressor - uses rotating floats to generate drive energy to actuate bellows
IPC: A01K63/04
Filed: 1991-01-31
Abstract: The low pressure compressor is for ecological protection of the environment. The energy necessary to compress the air, is won (to 100 percent) by using the buoyancy of water, using two rotating floats/air tanks. By compression of two bellows, it produces the low-pressure air mixture. The appliance has two end walls, each with a bearing for a main shaft, and couplings for feed air and exhaust air tubes, to generate the rotary movement. It also contains a set volume of water. USE - To add oxygen to dying waters.
Patent DE-4103446-A1 (DE)
Inventor: LANDSTORFER HANS
IPC: B29C45/40
Filed: 1991-02-01
Abstract: The invention relates to a device for ejecting mouldings (moulded pieces) from an injection moulding machine, having an ejector rod, which is movable linearly, to which an ejector can be coupled. In order to create an ejector having a compact coupling that permits force transmission without play, can be easily separated and requires no travel distance in the machine beyond the ejector stroke, it is proposed that a switchable, telescopic sleeve coupling (40) be provided, which connects positively and non-positively the ejector (50) to the ejector rod (30). 
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Patent DE-4103489-A1 (DE)
Inventor: JESCHKE RAINER DR
IPC: C07C41/09
Filed: 1991-02-06
Abstract: Branched dialkyl ethers may be produced by condensing branched primary alcohols of the formula (I), in which R<1> and R<2> are mutually independently linear alkyl radicals with 2 to 20 carbon atoms, in the presence of sulphonic acids at temperatures of 150 to 200  DEG C with hydroxy compounds. The products are suitable as heat exchanger liquids.
Patent DE-4114390-A1 (DE)
Title: Appliance for giving enema to patient - has valve to control inflow or irrigation fluid and outflow from bowels
Inventor: KIEF HORST DR MED
IPC: A61M13/00
Filed: 1991-05-02
Abstract: The appliance is used for giving a patient an enema. It consists of a tube (3) which is inserted into the rectum (4), and has two branches (1, 2). The first branch (1) is connected to a pressurised vessel (B) which contains the irrigating fluid whilst the secod branch (2) is connected to a drain. An extension of the pipe (3) beyond the branches (1, 2) is fitted with a rotatable plug (5) which has an oblique end face. When the plug is in one position it shuts off the outlet branch (2) and when in the other position it shuts off the irrigating fluid inlet branch (1). USE/ADVANTAGE - Enema appliance has a valve to control inflow of irrigation fluid and outflow from the bowels.
Patent DE-4114908-A1 (DE)
Title: Dialysis soln. for use with artificial kidneys - contains low calcium ion content, but high citrate content to inhibit coagulation of blood
Inventor: SODEMANN KLAUS DR MED
IPC: A61M1/34
Filed: 1991-05-07
Abstract: A dialysis soln. for use with artificial kidneys contains at most 0.2 mMol/l la and 5-55 mMol/l citrate ions and 130-165 mMol/l Na ions. A device for dialysis treatment with artificial kidneys consists of a dialysis cell (3), a conveyor pump (8) for the patients blood and a conveyor pump (9) for the dialysate soln. A dosing pump (6) is situated in pipe (15) for recycling blood after the dialysis cell (3). This pump adds Ca2+ and/or Mg2+ ions from a container to the patients blood. USE/AVANTAGE - The high citrate ion content ensures that citrate ions diffuse into the blood and act in the membrane filter as anticoagulants. The citrate ions are degraded in the body by the Krebs cycle. Citrate intoxication is prevented by ensuring that the content of free ionised Ca is low and the Ca2+ is continuously added to the blood after the dialysis. Thus the use of heparin is avoided.
Patent DE-4116373-A1 (DE)
Inventor: STRIEGEL THOMAS DIPL ING
IPC: B60T8/174
Filed: 1991-05-18
Abstract: A circuit arrangement for a braking system with electronic anti-lock control is fitted with circuits which individually regulate the braking pressure at the rear wheel brakes on both sides of the vehicle at the beginning of a control cycle at low coefficients of friction, change over to "select-low" after the initial entry of a rear wheel into a stable phase and, in this select-low phase, if no instability occurs for a predetermined time (T) in the unselected rear wheel, increases the braking pressure at this wheel in the next pressure build-up phase by a fixed or variable amount. In an embodiment, braking pressure is also controlled prematurely in one rear-axle wheel brake if the wheel speed (vR) goes below a slip threshold (sO), if at the same time the current reacceleration is above a threshold and if a further value derived from the maximum of the filtered wheel acceleration is exceeded.
Patent DE-4117121-A1 (DE)
Title: New 1-(1,4-bi:phenyl-methyl) benzimidazole(s) as angiotensin II antagonists
Inventor: HAUEL NORBERT DIPL CHEM DR
IPC: C07D403/14
Filed: 1991-05-25
Abstract: 1-Biphenylylmethyl-benzimidazole derivs. of formula (I) and their salts are new. (A) where: R1 = F, Cl, Br, 1-4C alkyl, cycloalkyl, CH2F, CHF2 or CF3 and is in the 4 position; R2 = R2 or may also be R2 when R4 = 1H-tetrazolyl; R'2 = 3-5C alkoxy substd. in the 3, 4 or 5 position by imidazolyl, or 2-5C alkoxy substd. in the 2, 3, 4 or 5 position by benzimidazolyl or tetrahydrobenzimidazolyl; R2 = e.g. (a) 2-(1-imadazolyl)ethoxy, 1-4C alkylsulphonyloxy, OSO2Ph or phenylalkylsulphonyloxy; (b) acylamino opt. N-substd. by 1-6C alkyl, Ph, cycloalkyl, phenylalkyl, cycloalkylalkyl, bicyclohexyl or biphenylyl, where acyl is 1-7C alkanoyl, 2-4C alkoxycarbonyl, 1-6C alkylsulphonyl, benzoyl, phenylsulphonyl, phenylalkylsulphonyl, naphthylsulphonyl, cycloalkylcarbonyl, phenylalkanoyl or cycloalkylalkanoyl, where phenyl rings are opt. substd. by 1-2 of F, Cl, Br, Me and OMe, or 3-oxopyridazylinyl or (l) 3-oxodihydropyridazinyl, opt. 2-substd. by alkyl or phenylalkyl and opt. further C-substd. by 1-2 alkyl gps., Het = a C- or imino-bonded 5-membered heteroaromatic ring or a C-bonded 6-membered heteroaromatic ring. (B) where: R1 = H or F, Cl, Br, 1-4C alkyl, CH2F, CHF2 or CF3 in the 5, 6 or 7 position; R2 = Het or a gp. as defined in (l) above; R3 and R4 are as defined in (A); provided that: (a) R2 is not 3-methylimidazo (4,5-b)pyridin-2-yl or 3-n-hexylimidazo(4,5-b) pyridin-2-yl in the 6 position when R1 = H, R3 = n-Pr and R4 = COOH; (b) R2 is not benzoxazol-2-yl in the 5 or 6 position when R1 = H, R3 = n-Pr or n-Bu and R4 = 1H-tetrazolyl; (c) R2 is not 1-methyl-2-benzimidazolyl in the 5 or 6 position or 1-n-butyl-2-benzimidazolyl, 1,5-dimethyl-2-benzimidazolyl or 1-methyl-5-trifluoromethyl -2-benzimidazolyl in the 6 postion when R1 = H, R3 = n-Pr and R4 = COOH; (d) R2 is not 1-methyl-2-benzimidazolyl in the 6 position when R1 = H, R3 = n-Bu and R4 = COOH or 1H-tetrazolyl; (e) R2 is not 2-benzimidazolyl in the 6 position when R1 = H, R3 = n-Bu and R4 = COOH; unless otherwise stated, alkanoyl, alkyl and alkoxy gps. are 1-3C and cycloalkyl gps. are 3-7C.
Patent DE-4119840-A1 (DE)
Title: Low space requirement piston sealing system for high voltage switch - has adjacent, radially slit sealing rings of rectangular cross=section which are joined loosely by pin
Inventor: BIELIG HORST
IPC: H01H33/91
Filed: 1991-06-13
Abstract: A sealing system, for the pressure-actuated piston drive of a high voltage electric switch, has one-piece sealing rings of low friction, electrically insulating material (e.g., PTFE) and elastomer seals (e.g., of rubber) between the cylinder and the piston. The novelty is that at least two axially adjacent, radially slit sealing rings (12.1; 12.2) of rectangular cross-section are joined loosely by a pin (11) so that their radial slits are mutually offset and at least one of the rings is axially displaceable on the pin (11). The rings (12.1; 12.2) seat in a groove (13) in the piston (15), the groove (13) being deeper in the region of the ring (12.1) remote from the pressure side than in the region of the pressure-side ring (12.2) by an amt. corresp. to the dia. of the elastomeric sealing ring (10). The dia. of the base (13.21) of the groove (13) is selected such that the pressure-side ring (12.2) has a certain play (9) in its portion (13.2) of the groove (13). At least one hole (8) extends from the pressure-side piston face wall to the base (13.21) of the groove portion (13.2) accommodating the pressure-side ring (12.2). ADVANTAGE - The sealing system has low space requirements, adapts immediately to varying temps., pressure and position of the piston-cylinder arrangement and provides repeated short-circuit switch-off in the shortest time.
Patent DE-4119994-A1 (DE)
Inventor: SEILER CLAUS-DIETRICH DR
IPC: C07F7/14
Filed: 1991-06-18
Abstract: A novel process is described for the preparation of 3-chloropropylsilanes from hydrogensilanes and allyl chloride. The condensate of the reactant mixture is adjusted in such a way that it contains a stoichiometric excess of allyl chloride.
Patent DE-4123629-A1 (DE)
Title: Implantable semi-permeable bio-artificial organ - allowing biological signal and metabolic substance flow by pressure gradient
Inventor: BODZIONY JAKOB DR
IPC: A61F2/02
Filed: 1991-07-17
Abstract: An implantable bio-artificial organ, made of semipermeable material in the form of one or more hollow fibres, consists of a sensor portion (A), which is implanted in an artery or vein, and a reactor portion (C), which is implanted in tissue, a vein or a body cavity and which has cells for secretion and/or treatment of biologically active substances, the sensor and reactor portions being connected (B), together to allow flow of biological signals and metabolic substances by means of a pressure gradient. The hollow fibre may be coated with (i) endothelial cells which are tolerated immunologically as native cells and which allow vascular implantation for several years; (ii) mesothelial cells which are immunologically tolerated and which allow vascular or body implantation for several years; or (iii) other cells which are immunologically tolerated. USE/ADVANTAGE - The organ may be used to replace the function of damaged endocrine glands (e.g. islets of Langerhans, parathyroid glands, pituitary glands). It allows biologically active substance secretion or treatment regulated by positive and negative feedback, independent of external energy sources and pumps.
Patent DE-4123956-A1 (DE)
Inventor: SOWKA EBERHARD DR ING
IPC: B22D11/12
Filed: 1991-07-19
Abstract: The invention relates to a method and an apparatus for producing a metal strand (3) by casting, in particular in a continuous casting mould (2). In order to avoid surface defects in the steel strand (3), caused by slag and other impurities being pressed into the surface by transport and guide rollers or the rollers (4, 5) of rolling stands, suction (6a, 6b, 7a, 7b) is applied to the surface of the partially solidified strand (3) emerging from the continuous casting mould (2). The strand (3) enters the region of the transport rollers and/or guide rollers (4, 5) with a bright surface free from impurities. <IMAGE>
Patent DE-4124249-A1 (DE)
Title: Re-use of ampoules containing methyl-benzoate - by cleaning ampoules with solvent and refitting with methyl-benzoate
Inventor: MACHT PETER
IPC: B09B3/00
Filed: 1991-07-22
Abstract: The heat consumption of a radiator is measured by means of an ampoule containing a liquid such as methyl-benzoate. The liquid is evaporated by the heat of the radiator and the amount of liquid evaporated in a given time indicates the heat used during that time. The ampoules are replaced about once a year and the old ampoules are discarded. The method re-uses the ampoules by placing them in a suitable container. The ampoules are emptied by placing the container in a centrifuge. The ampoules are then cleaned by filling them with a solvent and after emptying out the solvent the ampoules are refilled with methyl-benzoate and are ready for re-use. USE/ADVANTAGE - Re-use of ampoules to reduce costs
Patent DE-4127298-A1 (DE)
Title: Automatic driverless vehicle for goods transport - has drive appts. and control equipment arranged under loading surface, allowing access from all sides
Inventor: FREDERICH FRITZ PROF DR ING
IPC: B60L9/00
Filed: 1991-08-17
Abstract: The automatic driverless vehicle has no driver's cab. The vehicle is driven by a drive under the floor of the loading area, by command of a control program. The vehicle has an electric drive, with power fed by current collectors (6) mounted on frames (9). The current collector can pref. be swung out of the way during loading of the vehicle. The vehicle may include switching or instrumentation panels for manual operation. Red lights on the ends of the vehicle are lit to indicate its direction of travel. USE/ADVANTAGE - For transportation via road or rail. Entire area of vehicle is available for loading.
Patent DE-4132154-A1 (DE)
Inventor: HOENGES EDGAR
IPC: B01F7/16
Filed: 1991-09-27
Abstract: A mixture obtained in a mixing container (1) with one or several mixers arranged on a vertical shaft (2) has nonnewtonian flow properties, i.e. its viscosity decreases when the shear speed increases, and in particular has approximately the properties of a Bingham body. A mixing member (4) arranged to act at the bottom of the container brings up a sufficiently high mixing power to generate an axial, whirling stream in the material to be mixed. The downward axial flow is reinforced by a further mixing  member with downward-feeding mixing blades (15) enclosed by a guiding ring (12). The mixing blades (15) extend in the radial direction only in the area of the downward flow generated by the mixing member (4) arranged at the bottom of the container. A good mixing result is thus obtained, without incrustations on the mixing members and container walls, and at the same time maintenance is reduced.
Patent DE-4132439-A1 (DE)
Inventor: BAYER JUERGEN ING GRAD
IPC: F01N3/28
Filed: 1991-09-28
Abstract: Known exhaust gas catalytic converters, in particular for internal combustion engines of motor vehicles, have a supporting body made up of corrosion-resistant metal sheets. In order to improve their efficiency, in particular in the cold-start phase, it is known to warm up the electroconductive supporting body by connecting it to a voltage source. Insulating gaps or layers are arranged inside the supporting body to guide the current. In order to manufacture in a simple manner a supporting body (13) with high mechanical resistance, the disclosed exhaust gas catalytic converter (10) has at least one self-insulating heating element (18, 20) in thermal connection with the metal sheets (14, 16) that constitute the supporting body (13) and/or their coating. This invention is useful for exhaust gas catalytic converters of engines of motor vehicles.
Patent DE-4134804-A1 (DE)
Title: Antenne mit elektronischer Strahlschwenkung
Inventor: HARTEMANN PIERRE
IPC: H01Q3/44
Filed: 1991-10-22
Abstract: Die Erfindung bezieht sich auf eine Antennenstruktur mit elektronischer Strahlschwenkung mit Fotoleiterelementen (A), die als Schaltelemente dienen, die einzeln mit Hilfe von Beleuchtungsmitteln bespielsweise durch eine Flüssigkristallmatrix (M) hindurch gesteuert werden und die durch eine entsprechende Steuerung der Beleuchtungsmittel Variationen des Reflexionswinkels einer an der Antenne reflektierten elektromagnetischen Welle bewirken können.
Patent DE-4202457-A1 (DE)
Title: Clamp release system for cable suspended hoisting carriage - has lifting rope guide geometry chosen to ensure that lifting rope cannot prematurely touch actuating bush
Inventor: WERLBERGER JOSEF
IPC: B61B7/00
Filed: 1992-01-29
Abstract: The lifting rope (118) passes through a guide (100) pivoted on the underside of the carriage. Towards the top end of the guide housing is heavily spring-cushioned stop bush (103) with a guiding bore for the lifting rope. Below the stop bush, and guided by slots in the housing, is a lightly spring-loaded actuating bush (104) with a bell-mouthed bore (104') through whichh the rope passes. At the bottom end of the housing is an opening (107) from which the rope emerges. The geometry of the housing and opening ensures that the rope cannot touch the sides of the bore in the actuating bush no matter how far it is deflected from the vertical. In use, a conical stop ring fixed to the rope forces the actuating bush upwards when the rope is fully wound in. A dog (112) on the actuating bush triggers of a mechanism (111,117,108) which releases the suspension cable clamp and allows the carriage to be traversed. ADVANTAGE - Relief of actuating bush bore from lifting rope ensures that suspension cable clamp cannot be prematurely released.