baber/WOPTO huggingface dataset:
Patent DE-3907578-A1 (DE)
Title: Process for the preparation of solutions of quaternary ammonium halides having a reduced alkali metal halide content
Inventor: AIGNER RUDOLF DIPL ING
IPC: C07C209/84
Filed: 1989-03-09
Abstract: In the novel process, the quaternisation mixture obtained by customary quaternisation of primary or secondary amines with an alkyl halide in a lower alkanol as a solvent and in the presence of aqueous alkali metal hydroxide is treated in such a manner that the amount of water in the quaternisation mixture is first distillatively reduced to at least 6% by weight and only after this reduction of water is the alkali metal halide separated off.
Patent DE-3908764-A1 (DE)
Inventor: TELSER THOMAS DR
IPC: G03F7/32
Filed: 1989-03-17
Abstract: A new liquid cleaner composition is provided for the mild and gentle removal of polymeric materials from sufaces without leaving any residues. The said new cleaner composition is an emulsion of the water-in-oil type comprising an aqueous phase finely dispersed in a continuous phase selected from the group consisting of nonflammable, fire-retardant, high-boiling, and fire-retardant and high-boiling organic phases, the volume ratio of the finely dispersed aqueous phase to the continuous organic phase being in the range of from 90:10 to 10:90. The new liquid cleaner composition can contain alcohols, surface-active agents and further useful additives. The new liquid cleaner composition is most preferably used in the process for preparing photopolymerized flexographic relief printing plates as the developer for washing out the non-irradiated and thus non-photopolymerized areas of the imagewise irradiated relief-forming recording layers of the said flexographic relief printing plates.
Patent DE-3910752-A1 (DE)
Title: Apparatus for centrifugal working of workpieces
Inventor: KUZMIN MICHAIL FEDOROVIC
IPC: B24B55/02
Filed: 1989-04-03
Abstract: The apparatus according to the invention includes drums (5) for the workpieces to be worked, which drums are arranged in planetary fashion on a rotatable crosspiece (3) which bears a lubricant and coolant distributor (6) arranged coaxially thereto. According to the invention, the liquid distributor (6) is designed as an annular vessel (53) which is connected to the drums (5) by means of pipes (7) whose inlet openings (54) are situated in the hollow space (55) of the liquid distributor (6) on the side of its outer wall (56), and is in connection with a settling container (8) by means of connecting pieces (57), whose inlet openings (58) are designed flush with the inner wall (59) of the liquid distributor (6). <IMAGE>
Patent DE-3913596-A1 (DE)
Title: Oxygen-ion-conducting solid electrolyte and process for the preparation thereof
Inventor: HAYAKAWA NOBUHIRO
IPC: C04B35/486
Filed: 1989-04-25
Abstract: The invention relates to a solid electrolyte which is suitable for use in oxygen sensors, made of a partially stabilized zirconium oxide consisting essentially of from 4.5 to 6.0 mol % of Y2O3 and ZrO2 as remainder and composed of tetragonal and cubic crystals. The electrolyte is prepared using a coprecipitated powder of a solid solution of ZrO2 and Y2O3 as starting material by sintering a green body at a temperature of not more than 1500@C. The ZrO2-Y2O3 powder has an average particle size of not more than 1  mu m and a specific surface area range of from 2.5 to 7 m<2>/g and contains not more than 0.2% by weight of undesired SiO2, so that the sintered solid electrolyte can have an SiO2 content which is as low as possible. The solid electrolyte obtained has good mechanical properties and possesses a sufficiently high withstand voltage.
Patent DE-3918808-A1 (DE)
Title: Axial fluid turbomachine for electricity generation or propulsion - has hydraulically and electrically active components assembled together for direct conversion of hydrodynamic into electrical energy
Inventor: SPOERHASE WERNER
IPC: F03D9/00
Filed: 1989-06-09
Abstract: The electromagnet coils and conductors (10) necessary for generation of electric current are installed, with solar cells providing the excitation voltage, in rotary drums (5) and on rotor vanes (3) as well as in the outer nacells (6) which is secured by crosspieces (7) to a rotary bearing (8). The rotors rotate in ball-races (2) on longer crosspieces (4) which extend from side to side of a directional stabiliser (1). ADVANTAGE - Naturally available fluid energy is converted intp electric power in optimal and environmentally acceptable manner. Little maintenance is required, and no energy is lost in mechanical transmission.
Patent DE-3930083-A1 (DE)
Inventor: KOERFGEN HARALD
IPC: F16K3/08
Filed: 1989-09-09
Abstract: In a shut-off and regulator valve with a housing which has at least one axial inlet opening and one radial outlet opening and can be inserted in the fitting body, in which housing a valve seating disc, which is provided with at least one screw opening, is held transversely with respect to the longitudinal axis such that it cannot rotate and on which valve seating disc a rotatable valve regulating disc rests on the current inlet side, a sealing element (3) being provided between the inlet channel of the fitting body and the housing (1), it is proposed for improvement that a covering disc (4) be held downstream behind the sealing elements (3) in front of the valve regulating disc (5) in the housing (1) such that it cannot rotate, which covering disc (4) has one or more congruent through-openings (42) corresponding to the valve seating disc (6) arranged downstream. 
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Patent DE-3934460-A1 (DE)
Title: Windscreen wiper for motor vehicle - is fitted with rotating brushes for removing dead insects
Inventor: SCHMIDT NORBERT
IPC: B60S1/34
Filed: 1989-10-15
Abstract: The device is for removing dead insects from windscreens. It consists of a swinging arm (1) which operates like the arm of a windscreen wiper.  This arm (1) carries a row of small circular brushes (2) or sponges. Each brush or sponge is mounted on a spindle (6) which is fitted with a gear wheel.  These gear wheels are so arranged that the gear wheels of adjacent brushes intermesh so that the brushes rotate as the arm swings over the windscreen.  When not in use the arm is mounted inside a housing. USE - Windscreen wipers for vehicle.
Patent DE-3940947-A1 (DE)
Title: Fuel-air mixture formation for IC engine - involves temp. controlled projection in vortex chamber wall for fuel evaporation
Inventor: LUGS WERNER
IPC: F02B19/14
Filed: 1989-12-12
Abstract: The process is for air-compressing injection engines with a vortex chamber. A projection (14) in the chamber wall (13) in the impact area (12) of a fuel injection jet (10) at right angles to the axis (8) of the eddy current (A), serves for mixture formation in wall-neighbouring areas of the eddy current. Injected fuel is settled on the long rib-like projection (14), directed in circumferential direction of the eddy current. The projection is maintained at a suitable temperature, for relatively quick evaporation of the settled fuel. USE/ADVANTAGE - Diesel engine with reduced nitrogen oxide emission.
Patent DE-4004529-A1 (DE)
Title: Reflex light scanner with background filtering - has cylindrical lenses focusing source, receptor beam paths to give background filtering and sufficiently, broad beam
Inventor: REICH STEFAN
IPC: G01S17/04
Filed: 1990-02-14
Abstract: The reflex light scanner with background filtering contains a light or infrared light source (2) and an optoelectronic receiver (1). Background filtering is achieved by arranging that the source and receiver beam paths cross in front of the background. The source and receiver beam paths are focussed by cylindrical lenses (9,10) to form narrow, long focal lines (14,15) on the object to be scanned. The cylindrical lenses are directed parallel to each other to cause parallel alignment of the focal lines. USE/ADVANTAGE - E.g. for recording people or monitoring doors, esp. on buses. Achieves sufficiently broad beam and true background suppression.
Patent DE-4008994-A1 (DE)
Title: Fuel injection pump for multicylinder IC engine - has volume adjusting valve to switch=off some cylinders
Inventor: AUGUSTIN ULRICH DIPL ING
IPC: F02M63/02
Filed: 1990-03-21
Abstract: The fuel injection pump has a RPM control, and is for an engine with axially and rotary movable pump pistons in pump cylinders, whicare in engagement with volume adjusting member. The adjusting member (5) is formed, so that some of the pmp cylinders (4d, e, f) may be switched-off. It consists of coupled firs tand second control rods (6,7). First pump cylinders (4a, b,c) are constantly switched-on by the first rod, while the second cylinders are switched off by the second rod, via an adjusting device. USE - IC engine with reduced exhaust emission and fuel consumption.
Patent DE-4014872-A1 (DE)
IPC: H04R25/00
Filed: 1990-05-09
Abstract: The invention relates to a tinnitus masking device with one or more signal generators, an adjustable amplifier (2) and one or two electroacoustic converters (3) to convert electrical into acoustic signals and a voltage source, in which at least one of the signal generators (1) generates a continuously repeated pure sinusoidal sound signal slowly extending over the audible frequency range, the cycle time of which can be adjusted between 0.1 and 1 000 s.
Patent DE-4016550-A1 (DE)
Title: Optical disc scanning system - regulates laser power according to output of photodetector receiving light reflected from disc representing data, tracking or focus error
Inventor: FUELDNER FRIEDRICH
IPC: G11B7/125
Filed: 1990-05-23
Abstract: A laser (L) provides a beam processed through a lens (L1) a half wavelength plate (L2), a beam splitter (P5), a cylinder lens (ZL) and objective lens (OL). The signal reflected from the surface is received by a 4 quadrant photodetector (ABCD) with outputs summed by an amplifier to generate a data signal (HF). The amplitude of the signal is a measure of the laser power and is used by a regulator (R) to maintain a constant value. USE/ADVANTAGE - CD, video disc and DRAW players, or magneto-optical appts. laser power regulated without using monitoring diode.
Patent DE-4016596-A1 (DE)
Inventor: BREIPOHL GERHARD DR
IPC: C07C273/18
Filed: 1990-05-23
Abstract: Novel compounds of the formula I   <IMAGE> (I)  in which X is an anion, and a process for the preparation thereof, are described. Compounds of the formula I are used as coupling reagents in peptide synthesis.
Patent DE-4018057-A1 (DE)
IPC: B41M3/12
Filed: 1990-06-06
Abstract: A method for applying a decorative layer to a substrate is proposed, in which a separate adhesive film is used for fixing the decorative layer on the substrate. <IMAGE>
Patent DE-4018977-A1 (DE)
Title: EEPROM with NAND memory cells - has potential stabiliser above semiconductor support layer, next to respective data transmission line
Inventor: NAKAYAMA RYOZO
IPC: H01L27/115
Filed: 1990-06-13
Abstract: The memory has a semiconductor support layer (12), parallel data transmission lines (BL) on top of the layer, and a memory cell section with an array of programmable memory cells (M1-8), associated to given bit line (16, BLi) of the data transmission lines. A potential stabiliser (72) is insulatingly fitted above the support layer, adjacent to the above mentioned bit line. It receives a preset constant voltage applied to the support layer during a selected time period, during which data access takes place in a cell unit of NAND type. The cells of the NAND unit  (14i) have a series connection of a preset number of data storage transistors with control gate layers, and a switching transistor (QS1). ADVANTAGE - High integration and improved operational  reliability.
Patent DE-4019029-A1 (DE)
Title: Open=end spinning rotor for high speed - has driving discs with dual plastic rings by side pieces bolted in position, around rim, for dispersing frictional heat
Inventor: GOETZ DIETER
IPC: D01H4/12
Filed: 1990-06-14
Abstract: Drive discs on rotor have dual plastic rings around the rim. Pref. two plastic rings are gripped into the groove at the time of the disc and are held at the sides for two-thirds-three-quarters of their depth. The grooves are dovetailed. The rings are stretched over the discs. An assembled construction built on to an extension of the central hub has side fixtures which are held by a series of bolts around the disc. These fixtures secure the two plastic rings against the extension and are centered against a projection of the hub. ADVANTAGE - High speed heat generated at the point of friction is rapidly dispersed.
Patent DE-4023678-A1 (DE)
Inventor: NOZAKI MASATO
IPC: G11B5/09
Filed: 1990-07-26
Abstract: 2.1 The mute circuit of the outputs of a digital reproducing apparatus has the problem of exact tuning of the mute circuits of the outputs and of the signal processing, in particular in a case where the apparatus receives data in a mode for which it is not designed. The invention is based on the object of preventing undesirable noises when changing over operating modes and of tuning to each other the activation or deactivation of the mute circuit(s) of the outputs, and the reproduction of data which are stored in different operating modes on the recording medium. 2.2 According to the invention, in the signal path from the signal processor to the digital and/or analog output there is arranged ahead of the common mute circuit or the separate mute circuits of the respective signal paths at least one common delay stage and/or a separate delay stage for each output. 2.3 Digital recording and/or reproducing apparatuses, in particular DAT recorders/players. <IMAGE>
Patent DE-4025842-A1 (DE)
Title: Colorimetric detector with reagent reservoir - has reagent collection chamber through which carrier is passed for uniform moistening with reagent sol.
Inventor: RABENECKER HORST
IPC: G01N21/78
Filed: 1990-08-16
Abstract: The colourmetric detector for gas or liquid with a reagent reservoir has  housing enabling viewing of a porous carrier (5) contg. a colour indicator, and a reagent sol.  (19). The contents of a reagent reservoir (3) with which the gas or liquid makes a colour reaction are brought into contact with the carrier so as to moisten it for a measurement to take place. The reagent sol. discharges into a reagent collection chamber (6) between the carrier and reservoir when the reservoir is opened.  The carrier is passed through the chamber to be moistened. ADVANTAGE - Enables uniform moistening of carrier surface with reagent sol.
Patent DE-4033772-A1 (DE)
Title: Tube insert for chimney - comprises stainless steel coated with ceramic glaze to give extended life
Inventor: MUELLER FRANZ
IPC: F23J13/02
Filed: 1990-10-24
Abstract: Tube insert and fittings for lining chimneys of e.g. houses equipped with low temp. boilers are mfd. from stainless steel, coated at least on the inside with an adherent ceramic glaze. The glaze may be subjected to impact or shock during handling, with the development of hair cracks but corrosion resistance is maintained by the stainless steel substrate. ADVANTAGE - Extended life is obtd.
Patent DE-4037755-A1 (DE)
Title: Vehicle mountable container for electronic components - has container part with open side closed by inset lid with H-shaped lip around edge
Inventor: KRING WILHELM
IPC: H05K5/06
Filed: 1990-11-28
Abstract: The container for mounting in a motor vehicle for containing electrical components, comprises a container part (1), open on one side, with a separate chamber (2) around the end of the container. The container is closed by an inset lid (3) which has a U shaped lip (4) around the edge, whereby the lip (4) encloses the chamber. The dividing plane of the container (1) is perpendicular to the mounting plane. In the region of contact of the lid (3) and the chamber there is a labrynthine extension (5) connected on its outer side to the inner side of the container. The extension to be as low as possible when the housing is mounted for operation, thus guaranteeing rapid removal of already suppressed water condensation. ADVANTAGE - Compact, inexpensive to manufacture, no expensive test process needed during development stage.
Patent DE-4038401-A1 (DE)
Title: 2-Component polyurethane foam system for prodn. from closed container - comprises isocyanate component and poly:hydroxy component contg. water or mono- or poly-carboxylic acid as foaming agent
Inventor: MUMENTHALER FRIEDRICH WALTER D
IPC: C08J9/02
Filed: 1990-12-01
Abstract: Foam system (I) is based on (A) prepolymer with reactive NCO gps., formed from at least one polyol and at least one polyisocyanate and having viscosity 500-12,000 mPa.s (all viscosities at 20 deg.C). (B) separately from, and reactive with, (A), at least one polyhydroxy cpd. (C) separately from (A), as blowing and foaming agent, 2-16% (all pts.wt.) on (A), water or organic mono- or poly-carboxylic acid in form reactive to (A); and opt. (D) conventional plasticisers, flame retardants, foam stabilisers, catalysts, viscosity-reducing solvents (II), and/or other auxiliaries. - Prepn. of (I) by (1) reacting at least one polyol, under exclusion of moisture, with at least one polyisocyanate with formation of (A), where (D) can be added to starting materials, reaction mixt., and/or (A). (2) opt. transferring (A) mixt. under exclusion of moisture into a pressure container, (3) incorporating (B) and (C) in encapsulated form with (A).
Patent DE-4041087-A1 (DE)
Title: Regulation of motor-driven levers for moving large window casement or dome in building - ensures all motors have equal speed by comparing displacements produced by each motor
Inventor: AUMUELLER REINER
IPC: E05F15/611
Filed: 1990-12-21
Abstract: The dome (2) is raised about pivot (3) by motor-driven rods (7). There are several motors (4,5), all driving independently. Motors which are running too fast or slow are braked or accelerated respectively. The motor speeds are pref. synchronised to the speed of the slowest motor by measuring the distance moved using sensors (8), and controlling the motor speeds accordingly. USE/ADVANTAGE - Regulation of motor-driven levers, especially in buildings for raising domes, lifting flaps, etc.; maintains all driving motors at constant speed.
Patent DE-4100014-A1 (DE)
Title: Testing equipment for PCB - includes pneumatic drive allowing PCB holder and contact plate holder to be adjusted between contacting nad non-contacting positions
Inventor: BAITZ GUENTER
IPC: G01R31/28
Filed: 1991-01-02
Abstract: The contact plate is connectable to a test circuit. The p.c.b. holder is in the form of a frame plate (6) accepting a p.c.b. (82) in a central recess (10). The contact plate holder is in the form of a second frame plate (8) covering the first (6) and accepting a contact plate (68) in a central recess (12). One plate thus lies over the other and they are moved towards each other by a low pressure introduced between them. Elastic packing cores (20, 22) between the plates form vacuum chambers connectable to a low pressure source. The low pressure setting drive can include a piston in a housing. The upper or lower side of the piston is connected selectively to the low pressure source via a control slide, the other side of the piston being connected to the atmos. The control slide can be a two position valve set to its two positions by electro-magnets working in opposite directions. ADVANTAGE - Avoids bending and static charging of p.c.b. from air streams.
Patent DE-4123764-A1 (DE)
Inventor: GEHRING HARALD DIPL ING
IPC: B01D17/04
Filed: 1991-07-18
Abstract: In a waste water treatment process for the removal of non-volatile lipophilic substances (oils and fats), calcium hydroxide suspension of different molarity is added to the waste water. The soaps formed in the alkaline hydrolysis (saponification) are precipitated as insoluble calcium salts (calcium soaps), withdrawn as sludge, dewatered and utilised as a commodity.
Patent DE-4123918-A1 (DE)
Inventor: PETERSEN UWE DR
IPC: A61K31/47
Filed: 1991-07-19
Abstract: The invention relates to novel 8-vinyl- and 8-ethynyl- quinolonecarboxylic acids, a process for their preparation and antibacterial agents and feed additives containing them.
Patent DE-4133719-A1 (DE)
Title: New chiral macrocyclic cpds. - useful as ferroelectric liq. crystal additives
Inventor: MANERO JAVIER DR
IPC: C07D273/00
Filed: 1991-10-11
Abstract: Cpds. of formula (I) are new. In (I) Z = (a)-O-, -S-, -SO-, -SO-O-, -SO-N=, -N=, =-O-, -N(O-)2, -N-N(O-)2, =SI=, =C=, -P=, =P-O-, =P-N=, -Si-O-, -O-Si-O-, -PO-, -PO-O-, -PO-O-, -PO-N=, -CO-N= or -CO-O-, or (b) phenyl or pyridyl opt. o-, m- or p-substd. by -(CH2)q-O-, -(CH2)q-S-, -(CH2)1-N=, -(CH2)q-CO-N=, -(CH2)1-CO-O-, -(CH2)q-O-CO-, -(CH2)q-CO- or a gp. of formula (II) or (III); R1 and R2 = H; 1-20C alkylene, opt.with one or more CH2 gps. replaced by O, S, CO, NR, CS, CF, CBr, CCl, C(CN), N(SO2R), N(R)SO2 or SiRR'; 3-8C cycloalkylene, opt. with 1-3 CH2 gps. replaced by O, S, NR, CO, SC, SO2 or SO, provided that O is not next to S or NR and S is not next to NR; a C- or N-terminally bonded proteinogenic amino acid, opt. N- or carboxy-protected; or a 5-20C terpene; or two R1 gps. and/or two R2 gps. in two pref. nonadjacent chain members may form a gp. of formula (IV). (R3 and R4 = H; 1-20C alkylene, opt. with one or more CH2 gps. replaced by O, S, CO, NR, CS, CF, CBr, CCl, C(CN), N(SO2R), N(R)SO2 or SiRR'; or 3-8C cycloalkylene, opt. with 1-3 CH2 gps. replaced by O, S, NR, CO, SC, SO2 or SO (with the above provisos)) X and Y = H, OH, COR, NHR, CSR, SH, CN, NCO, NCS, -N=C, vinyl, ethynyl, SiRR'Cl, SiHRR', SiR(R')2, N3, Cl, I, Br, SO2NHR, -N(R)-C(NR')-NR"R"' or -N=C=N-R; R, R', R" and R"' = H or 1-5c alkyl, or may also be 1-5C alkoxy or 1-5C alkanoyl when bonded to C or Si; A and B = R1-X and R2-Y, or together form a bond; m and n = 0-2; o = 3-8; p = 1 or 2; q = 0 or 1; provided that m+n+o = 9-29. USE/ADVANTAGE - Addn. of (I) to ferroelastic liq. crystal (FLC) compsns., or incorporation of (I) into the alignment layers of FLC display devices, suppresses 'switching-back effects' at high spontaneous polarisation values and also reduces the amt. of dopants required for pitch compensation in nematic and/or smectic C phases.
Patent DE-4134845-A1 (DE)
Title: Combined X=ray and optical tomography scanner - has function distribution measuring appts. detecting two physical magnitudes in body
Inventor: KAWAGUCHI FUMIO
IPC: G06T11/00
Filed: 1991-10-22
Abstract: The combined X-ray and optical tomography scanner (70) uses X-ray data analysis to provide a morphological image of a section through the body, is separated into individual zones corresp. to the internal organs, or tissue areas. A function distribution measuring appts. (90) detects measured data relating to the distribution of 2 physical magnitudes within each zone. There is reconstruction of an image displaying the distribution of one respective magnitude, the value of the second physical magnitude for each pixel dependent on the morphological image. The function distribution measuring appts. evaluates projected optical pulses of given wavelength, passed through the body. USE/ADVANTAGE - For substance exchange indicating image, with in-vivo examination of haemoglobin oxidisation within internal organs.