baber/WOPTO huggingface dataset:
Patent DE-3933114-A1 (DE)
Title: False twist spinning - uses structured air flow on emerging sliver from drawing unit to wind projecting fibre ends round the core
Inventor: STAHLECKER FRITZ
IPC: D01H1/115
Filed: 1989-10-04
Abstract: At the drawing unit, in a false twist spinning process, an air stream is applied to the emerging sliver from the outlet rollers with at least one component across the direction of sliver travel. The air stream has a component directed vertically to the plane of the sliver at the roller out of the drawing unit, forming the spinning triangle, and one air flow component in the direction of sliver travel. The false twist in the yarn is dampened as it asserts itself from the false twisting jet back to the drawing unit, and the spread fibre ends are laid on the sliver through the false twist guides moved by at least one directional component of the air stream. The projecting fibre ends are moved at a higher speed than the body of the sliver. The air stream is moved through the guide system by a suction air flow which, at least at the drawing unit side, moves at the side near a closed guide path for the sliver. ADVANTAGE - The method gives a consistent winding of the projecting fibre ends round the core, to give an evenly-spun yarn material.
Patent DE-3935871-A1 (DE)
Inventor: DAVID HELMUT
IPC: F22B37/20
Filed: 1989-10-27
Abstract: A heat exchanger arrranged in a horizontally positioned container for carrying extremely hot gaseous or vapor media, a heat exchanger unit including a bank of tubes defined by tube walls, an inner port, a collector connected to the inlet port and connected to the tubes, first and second outlet ports, first and second outlet port ocllectors each outlet port collector being connected to the outlet ports and a bracket suspension connected to passages of the container for suspendedly supporting each of the inlet port and the outlet ports. The inlet and outlet ports each have a central axis, each central axis passing through a center of gravity of the portion of the heat exchanger unit connected to the associated port. The each of the heat exchanger units includes, the bank of tubes formed of tube walls, inlet ports being connected to the collector and the outlet ports being connected to each of the first and second outlet collectors.
Patent DE-3937603-A1 (DE)
Title: Vehicle license number reading system - has lens system mounted on adjustable carriage for training license numbers of passing vehicle
IPC: G06K7/10
Filed: 1989-11-11
Abstract: The licence number reading system uses a reading lens attached to a carriage at the rear of a camera lens at the focus of the latter, with automatic adjustment of the carriage under control of a range indicator using a regulated drive for tracking the licence numbers. The latter are evaluated by a computer coupled to the camera. Pref. the scanned licence numbers can also be displayed on a monitor screen.
Patent DE-3941673-A1 (DE)
Title: Device for removing large impurities from waste water - contg. screw conveyor modified to act as filter and convey impurities unable to pass through filter to sediment disposal
Inventor: SCHNITZSPAN HANS GUENTER
IPC: B01D29/03
Filed: 1989-12-18
Abstract: A device for removing sediment and other materials from a waste water treatment plant comprises a screw conveyor (3) which extends from the floor of a sedimentation tank (2) upwards through the raw waste water stream. This conveyor (3) is provided with a semi-cylindrical inlet (4), which is open at the top and forms part of the floor of the tank (2), and also above this with a semi-cylindrical filter (6) which covers the inlet semi-cylinder (4) and is sepd. from the raw water inlet (1) and covers the water outlet (10). USE/ADVANTAGE - This invention is used in waste water treatment systems in which sediment and other solid impurities must be removed from the water. It is at present customary to use two screw conveyors in such applications, one of which removes the fine sediment, while the other removes large and fibrous imprurities which are collected by passing the water through a screen. The proposed design combines both of these operations in a single conveyor, which is suitable for small-scale treatment plant and increases the effectiveness and ease of maintenance of the system.
Patent DE-3942209-A1 (DE)
Title: Wheel for X=ray appts. running on aluminium rail - has plastic rim with thin metal shell located in annular groove and which deflects with wheel
Inventor: SCHMEDEMANN WALTER
IPC: B60B33/00
Filed: 1989-12-21
Abstract: The method describes a wheel with a plastic rim (2) which runs on an Al rail. The trim (2) has a lower modulus than that of the running rail. Durability of the wheel is increased if the rim (2) has an outer metal shell (3) with a higher modulus than the rim (2). The metal shell (3) is located in an annular groove (4) in the plastic rim (2). Shell (3) thickness is low to enable it to deflect when the wheel is loaded. Steel, bronze or aluminium alloy are used to mfr. the shell (3) and the rim (2) is made from polyimide, PET, PEEK or Polysulphone. USE/ADVANTAGE - The wheel is used for X-ray equipment and has improved durability.
Patent DE-3943421-A1 (DE)
Inventor: CHAUVIN JACQUES DIPL ING
IPC: H04N3/23
Filed: 1989-12-30
Abstract: A grid correction circuit for a television receiver includes a first memory for storing correction values for correcting the deflection current of the television receiver. A second memory perodically provides a test signal to a correction coil to correct the deflection of the television receiver. A switch periodically selectively connects the first memory to the correction coil and a correction current flows through the correction coil. The switch also periodically connects the second memory to the correction coil and a test current flows through the correction coil. An impedance is responsive to the correction coil and produces a correction voltage and a test voltage in response to the correction current and the test current respectively. A comparator receives the test voltage and compares the test voltage to a reference voltage and provides an output voltage having a first level when the test voltage is below the reference voltage and a second level when the test voltage is above the reference voltage. A processor receives the output voltage and changes the correction voltage to incrementally reciprocate above and below the reference voltage by a preslected increment to maintain the correction voltage at substantially the same level as the reference voltage over a long time period.
Patent DE-4000270-A1 (DE)
Inventor: KRAMER KARL-HEINZ DR
IPC: C22F1/00
Filed: 1990-01-08
Abstract: In a process for cold forming unalloyed titanium high strength and ductility, in particular high bendability, are obtained if the material is subjected to intermediate annealing at a temperature of up to 500 DEG  C.
Patent DE-4004539-A1 (DE)
Title: Roller for installing rubber lining inside tank - has spring-loaded brake which requires defined min. pressure to release it
Inventor: STIEBER WOLFGANG DIPL ING
IPC: B05C17/02
Filed: 1990-02-14
Abstract: The inside surface of a large container or tank is lined with rubber. The tank surface is first coated with adhesive and then a rubber sheet is pressed over the adhesive coated surface by means of a roller. The roller (1) has a cylindrical body which runs on ball bearings (2) with the end walls (3) forming the inner races of the bearings.  A handle (6) is attached to a rod (7) which passes through a radial slot (5) in each end wall (3). A spring-loaded brake inside the roller can only be released by exerting a defined min pressure on the handle. This feature ensures that an adequate pressure is exerted on the rubber lining. USE - Providing containers and tanks with rubber linings.
Patent DE-4006191-A1 (DE)
Title: Compsns. for removing water from surfaces
Inventor: BUCHWALD HANS DIPL CHEM DR RER
IPC: C23G5/028
Filed: 1990-02-28
Abstract: Compsns. (I) contg. 99.99-90 wt% dichloro-pentafluoro-propane (II) or a mixt. of (II) and 0.01-10 wt% surfactant(s) (III) dissolved in (II). Amts. are 99.95-95 wt% (II) and 0.05-5 wt% (III); (II) is 1,1-dichloro-2,2,3,3,3- pentafluoropropane (R225ca) or 1,3-dichloro-1,1,2,2,3 -pentafluoropropane (R225cb); (III) are surface-active organic amines, ammonium cpds. or amides, organic acids or phosphate esters, or salts of amines, etc. with organic acids or mono- or di-esters of phosphoric acid, pref. a mixt. of an amine and an organic acid or phosphate ester in the mol. ratio (0.3:0.7)-(0.55-0.45); amine is a linear or branched 8-12C alkylamine, pref. nonyl-, octyl- or 2-ethylhexyl-amine; organic acid is a 8-12C carboxylic acid, pref. octanoic acid, and phosphate ester is an alkyl, aryl or aryl-alkyl phosphate, pref. tri(2-ethylhexyl), tri(n-butyl), triphenyl or diphenyl-(2-ethylhexyl) phosphate.
Patent DE-4007526-A1 (DE)
Title: Alternator for motor vehicle - has auxiliary step=up transformer with tap for excitation winding voltage supply
Inventor: WINKLER JOSEF
IPC: B60R16/03
Filed: 1990-03-09
Abstract: The AC voltage from the generator (10) is tapped off for the supply to the auxiliary transformer (44) across leads (40) before rectification in diodes (18).  The higher voltage output from the auxiliary transformer is rectified across further diodes (46) and fed to the exciter winding (14). The higher voltage is introduced at the same time for the supplying of appliances (50), and a resistance (52) is provided in the connection between the tapping (48) and the excitation winding (14) for decreasing the voltage.  A voltage limiter (56) can be provided between the tapping (48) and the excitation winding.  A reverse current diode (54) is provided in the connection between the tapping and the excitation  winding. ADVANTAGE - Permits use of higher electrical energy e.g. for cold engine starting using increased voltage.  Voltage supplied at normal level following end of high power requirement.
Patent DE-4008134-A1 (DE)
Title: Magnetic recording medium
Inventor: SAITO SHINJI
IPC: C09D175/00
Filed: 1990-03-14
Abstract: A magnetic recording medium has first and second magnetic layers applied in sequence on a non-magnetic support, the first layer having a coercive force (Hc') of 2 x 10 power 4-1 x 10 power 5 A/m and the second layer having a coercive force (Hc) ratio of at least 2 x 10 power -6 H/m, a switching field distribution of max. 0.6 an average magnetic particle length along the longitudinal axis of max. 0.25 microns, and a centreline average roughness (Ra) of max one-tenth of the average magnetic particle length along the longitudinal axis.
Patent DE-4017825-A1 (DE)
Title: Biological waste water treatment system - using microorganisms on roots of plants by flowing waste water along channels past plants held in frames
Inventor: BESTMANN LOTHAR
IPC: C02F3/32
Filed: 1990-06-02
Abstract: Waste water flows along a channel and carriers hold plants so roots or rhizomes are immersed in the water. Pref. waste water flows in ditch whcih is lined with sheeting. Plants are held in tubular frames that are fixed to the supports. ADVANTAGES - Microorganisms living on the plants kill most of the pathogens in the waste water, and they start to work immediately. Plants can be easily changed.
Patent DE-4017845-A1 (DE)
Title: Gearing arrangement for motor vehicle with antislip control
Inventor: HONUS KLAUS
IPC: B60T8/175
Filed: 1990-06-02
Abstract: In comparison with a linearly rising road speed/time characteristics (vFZ), a nonlinearly varying control threshold (RS) is built up from a predetermined fixed basic linear threshold (GS) and a component (VR) derived from the wheelslip acceleration. This nonlinear component is comparable with the control theshold (RS), and the difference is used as a basis for adjustment of the rates of application and/or release of braking pressure. This takes place in steps over five successive unequal time intervals (t1-t6).
Patent DE-4018554-A1 (DE)
Title: Photo-curable mixts. for anion-sensitive matrix membrane prodn. - contain monomers, active membrane components, onium salts of Gp=V-Gp=VII as photoinitiators and nitro cpds. as plasticisers
Inventor: TIMPE HANS-JOACHIM PROF DR SC
IPC: G01N27/333
Filed: 1990-06-09
Abstract: A photochemically curable and structurable mixt. (I) for the prodn. of anion-sensitive membranes for potentiometric sensors is claimed, contg. a radically-polymerisable monomer or prepolymer (II), a photoinitiator or photoinitiator system (III), as active membrane component (IV) and a plasticiser (V); the novelty is that (V) is a nitro gp.-contg. cpd.  and (III) (or a component thereof) is an onium salt of a Main Gp.  V, VI or VII element. Pref. (III) is a phosphonium, sulphonium or iodonium salt, and (V) is an o- or p-nitroalkoxybenzene or mixt. thereof; (III) itself acts as the membrane-active component (IV); (I) contains 0.1-10 wt.% onium salt (III), 5-68.9 wt.% (V), 30-93.9 wt.% (II) and 1-20 wt.% (IV). USE/ADVANTAGE - (I) is useful for the prodn. of anion-selective matrix membrane electrodes for potentiometric sensors (for the determination of ionic activities and concns., esp. NO3-); mixt. (I) is easily processed by photolithography without using solvents such as THF, to give matrix membranes with excellent long-term stability, and with selectivity and sensitivity comparable to that of prior-art PVC-based systems.
Patent DE-4019202-A1 (DE)
Title: Low-density extruded thermoplastic foam - is mfd. by melt-extruding mixt. of plastic and pore regulator, using nitrogen gas and liq. halohydrocarbon as prim. and sec. blowing agents
Inventor: MEYKE JOACHIM DIPL ING
IPC: B29C48/92
Filed: 1990-06-15
Abstract: Prodn. of foam from a thermoplastic (I) comprises (a) mixing (I) with a pore-regulator (II),(b) putting the mixt. in an extruder (c) plastifying, mixing, and homogenising, (d) injecting 0.2-0.5 wt. % (w.r.t. I + II) nitrogen gas as a first blowing agent, (e) homogenising the gas-contg. mixt. (f) injecting 0.5-2 wt. % liq. partly-halogenated cpd. (III) as a sec. blowing agent, (g) mixing and homogenising the mixt. (h) extruding the mixt. to produce foam. The pressure of the mixt. in the extruder head is at least 55 bar, and its temp. is above a previously determined lower limit which is dependent on the material (I). Also claimed is an extruder system for the above process, comprising a hollow cylindrical housing with 2 injection zones, one (B) downstream from the other (A), and a rotating motor-driven homogeniser screw. Zones (A) and (B) fitted with injectors for gaseous and liq. blowing agents, respectively, and the zones are sepd. by a distance of at least 2D (with D = screw dia). Pref. (III) is CHClF2 (R22) CHCl2CF3 (R123) CH2FCF3 (R134a), CH3CCl2F, (R141b) or CH3CClF2 (R142b) (II) is talcum, (I) is polystyrene, (PS) in which case the temp. of the mixt. in the extrusion head is at least 130 deg.C or polyethylene (PE), in which case the temp. is at least 128 deg.C, extruder head pressure is adjusted by means of an axial pin, the extruder head is fitted with pressure sensors, and the head and slit are fitted with channels for temp. controls. USE/ADVANTAGE - The process enables the prodn. of low-density extruded plastic foam with a combination of blowing agents which presents no fire hazard and is less damaging to the ozone layer than prior-art systems. (6pp Dwg.No.0/2)
Patent DE-4026753-A1 (DE)
Title: Disposing of crude ammonium sulphate, partic. from cleaning flue gas - by mixing loose powder with aq. dispersion of film-forming plastics material, spreading out paste obtd. and allowing to dry before dumping
Inventor: FRITSCH GEORG DIPL CHEM DR
IPC: B09B3/00
Filed: 1990-08-24
Abstract: Impure ammonium sulphate (I), as loose powder, is removed by treating it with aq. dispersion of film-forming plastics material (II) while avoiding formation of ammonia, and processing into a thick pasty mass which is spread out and dried, with redn. of initial vol. of (I). (II) is pref. acrylate ester, styrene, or butadiene copolymer, Inert granules of fused slag or similar are added to increase compressive strength. 20-80, partic. 40-60, kg (II) and 100-370, partic, 120-300 kg water are used with 980-930, partic. 960-940, kg (I) and initial vol. of (I) is reduced by about 80, partic. 85 %. Mixt. further contains 25-55 pts. inert additive such as fused slag granules 0-5 mm per 100 pts. mixt of 20-80 kg (II), 100-370 kg water and 980-930 kg (I). In an example, 940-960 Kg (I), typically contg. 17.1 % C, 77.4 % (I), 4.4 % V pentoxide, and 0.98 % Ni oxide, was mixed with 40-60 kg (II) in 120-300 kg water to form black, thick pasty mass which was spread out and allowed to dry in air. After 3 days, prod. had compression strength 0.05 N/sq. mm, rising to 0.20 N/sq. mm after 28 days; final vol. was only 17.5 % of initial bulk vol. of (I). USE/ADVANTAGE - Disposal of (I) unsuitable for use as fertiliser due to toxic impurities such as heavy metal oxides. Vol. of (I) is reduced for optimal use of dumping space, dried mass is easily handled, method, avoids use of basic materials such as cement which can cause evolution of ammonia, and water sol. (I) is coated.
Patent DE-4031020-A1 (DE)
Title: Analysis sample prepn. appts. -  has microwave source for selective sample constituent evapn. from solvent
Inventor: MEDVEY BELA
IPC: G01N30/12
Filed: 1990-10-01
Abstract: In appts. for sample prepn. in an analysis unit having a sample receiver with a sample inlet which can be flushed with carrier gas under pressure and/or flow control by one or more valves, the novelty is that the sample receiver (1) is part of a desorption system having a tunable microwave source (9), the sample receiver (1) consisting (partially) of microwave-transparent material. A liq. sample prepn. process involves irradiating the untreated sample with microwaves of selected wavelengths with an energy such that the sample is selectively vapourised, the vapourised sample constituents then being fed by the carrier gas to the analysis unit. USE/ADVANTAGE - The appts. is used esp. in combination with gas chromatographs and mass spectrometers. It provides extn. of the sample constituents from a diluent solvent.
Patent DE-4036390-A1 (DE)
Title: Bearing arrangement for printing cylinder - has centering piece located in machine frame in which cylinder pins engage
Inventor: REICHENBACH KLAUS
IPC: B41F13/20
Filed: 1990-11-15
Abstract: The roller rotation printing machine has an auxiliary device for one-sided retention of the printing cylinder which has a cover which is exchangeable, and pushable on to it laterally through an aperture in a machine side wall. In the other machine side wall (5) is a centring piece (11) in which printing cylinder (1) pins (3) engage. The centring piece has a cylinder which works in conjunction with a counter cylinder at the end of the pin (3). Alternatively, the centring piece can have a cone which works in conjunction with a counter cone on the end of the pin. A work cylinder (13) engages on the centring piece. USE - As a locating arrangement for the cylinder of a rotation roller printing machine.
Patent DE-4036487-A1 (DE)
Inventor: LOEFFLER JOHANNES DR
IPC: F16K49/00
Filed: 1990-11-16
Abstract: The regulating needle serves for closing and controllable opening of a passage in a duct (4) bearing a dust-containing gas at temperatures from about 430 to 1200 DEG C. The regulating needle has a shaft (2) and an approximately frustoconical head (1) interacting with the passage. The shaft (2) is movably mounted on the head (1), and the head (1) is preferably resiliently braced to the shaft (2). 
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Patent DE-4037953-A1 (DE)
Inventor: KOEBER KARL-ERNST DIPL ING
IPC: H02K1/14
Filed: 1990-11-29
Abstract: Described is a stator for an electric motor, in particular a small motor, the stator having an at least two-part bundle (10) of laminae designed to hold the stator coil (16, 17). In order to simplify manufacture and assembly of the stator, the two parts (21, 22) of the bundle are held together by snap-in connections (19). The snap-in connections consist of a multiplicity of projecting tongues (23), one on each lamina (11) in the first part (22) of the lamina bundle designed so that they extend out towards the other part (21) of the bundle and with a first shape (47), plus a multiplicity of cut-outs (24), one in each lamina (11) in the second part (21) of the bundle, and with a second shape (48) such that the tongues (23) extend round behind the cut-outs (24) approximately at right angles to the direction of insertion of the tongues (23).
Patent DE-4040314-A1 (DE)
Inventor: HERRMANN WOLFGANG ANTON PROF D
IPC: C07F9/50
Filed: 1990-12-17
Abstract: The invention relates to a process for preparing water-soluble diphosphanes which are derived from biaryl compounds by sulphonating the corresponding biaryl compounds.
Patent DE-4105529-A1 (DE)
Title: Lubrication good for vehicle IC engine - provision of intermediate reservoir in return flow section
Inventor: RUEGER HANS DIPL ING
IPC: F01M11/06
Filed: 1991-02-22
Abstract: The lubrication feed for a combustion engine in a vehicle has oil sucked from a sump and pumped to the bearings and then returned without pressure to the sump. An intermediate reservoir (24) is arranged in the return flow section above the sump (18) with a valve (36) controlled by the oil level arranged in the outflow (26). ADVANTAGE - Method of controlling the oil level to avoid the harmful effects of having too little oil or of having an excess through overfilling of the garage forecourt.
Patent DE-4106908-A1 (DE)
Inventor: BRUECKNER CHRISTIANE DR
IPC: C07C67/313
Filed: 1991-03-05
Abstract: Method for the production of  alpha , beta -unsaturated aldehydes and ketones I,
 O=C(R<1>)-CR<2>=CR<3>R<4>   I,
 by acid hydrolysis of cyclic  alpha , beta -unsaturated acetals II, 
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 in the presence of saturated aldehydes.
Patent DE-4111958-A1 (DE)
Inventor: KELLERMANN GUENTER
IPC: F02M55/00
Filed: 1991-04-12
Abstract: A nozzle holder 2 has a fuel feed passage (12) and a leak-off passage 9 and the upper holder part 2a has a seat cone 5 onto which the conical seating surface 6 of an annular connection piece 3 is sealingly pressed. The connection piece 3 has an annular groove 10, arranged in the seating surface, as a leak-off connection between the passage 9 and the leak-off branch 4 on the connection piece. The connection piece 3 is formed of an elastomeric body in a sheet-metal cup 11. <IMAGE>
Patent DE-4113410-A1 (DE)
Title: Hydroelectric power generation system - uses wave-generating elements, connected to mechanical energy-generating device in water current, to produce electricity
Inventor: BERG IMMO
IPC: F03B13/20
Filed: 1991-04-20
Abstract: The process converts the kinetic energy of a water flow, into mechanical energy, for the production of electricity. It uses hydrodynamic elements, subjected to the water current. A wave-generating element is positioned in the current at a certain depth, and driven by it. Located above it is at least one device (10), to convert the wave energy into mechanical energy. Both are moved cyclically, horizontally, relative to each other, parallel to the direction of the current. The device for the above process consists of a conveyor belt-type carrier (20), carrying a number of wave-generating elements, e.g. floats (12). The carrier has sinus-type curvatures (24). The floats are connected to each other, and a shaft (30), via rods. USE/ADVANTAGE - Conversion of kinetic energy of water flow into mechanical energy. Does not require large areas of water, e.g. dammed lakes.