baber/WOPTO huggingface dataset:
Patent DE-3941989-A1 (DE)
Title: Cleaning acid waste water from glass industry contg. sulphuric acid - by passage through strongly basic anion exchanger and through chelate resin exchanger contg. active oxime Gps.
Inventor: HAECKER KARL
IPC: C02F1/42
Filed: 1989-12-20
Abstract: In cleaning acid waste water, contg. H2SO4, HF, As and/or Sb and opt. Pb and other ions, from the glass industry, esp. multi-stage polishing baths, the acid water, free from solids, is led over a strongly basic anion-exchanger of types I or II, to remove As and/or Sb fluoride complexes, followed by further purificn. in a 2nd treatment stage. A chelate resin exchanger in which the active gps. are mainly oxime gps., is used with the strongly basic anion-exchanger. The chelate exchanger contains mainly amidoxime gps. as active gps., and is used after the basic anion exchanger. ADVANTAGE - As and/or Sb not present as fluoride complexes is removed. In an example, 100 l of acid polishing water contg. 12mg/l of As, 77.6 mg/l of Sb, 26g/l of H2SO4, 9 g/l of HF, with Pb and other ions, and with pH 0.6, was led through a column of strongly basic anion-exchanger of type II, and then through a column of "Duolite" ES 346 (RTM: chelate resin based on cross-linked polymer, with amidoxime gps.), at 8 l/h, at room temp. The treated water contained 2.7 mg/l of As, and 0.9 mg/l of Sb; the pH and sulphate and fluoride concns. had not changed. The water was brought to pH 5-6 by addn. of milk of lime. After standing overnight, the supernatant water was decanted and brought to pH 9 with milk of lime; pptn. was helped by addn. of bentonite A. Filtration gave water contg. less than 0.05 mg/l of As, less than 0.1 mg/l of Sb, less than 0.5 mg/l of Pb, and less than 0.3 mg/l of fluoride, which could be released into the drains.
Patent DE-4000307-A1 (DE)
Title: Drive for bridge-mounted scraper and thickener machinery - has framework fixed to central column that can be raised to cater for build-up of sludge on tank floor
Inventor: MECKMANN PETER
IPC: B01D21/18
Filed: 1990-01-08
Abstract: In scraper or thickener machinery for circular tanks, which is driven from cross-bridge, framework fixed to central column can be raised, without obstructing central column.  Column is suspended from central frame which is raised and lowered from bridge using number of synchronously- driven vertical spindles. ADVANTAGE - To remove sludge which has built up on tank floor, pumping equipment can be lowered inside central column. In prior art pump is permanently fixed to machinery framework.
Patent DE-4000602-A1 (DE)
Title: Prodn. of disc with hub on each side - by forming circumferential slot in bore of central hole, then spreading
Inventor: WINKELMANN JUN HEINRICH DIPL I
IPC: F16D13/64
Filed: 1990-01-11
Abstract: A machine element in the form of a disc with a hub projecting from each side is produced from a circular blank (1) with a central hole (2) (fig. 1a). A circumferential slot (4) is cut in the bore (3) of the hole (2) by a special tool (fig. 1b). The material around the hole on each side of the slot (4) is then pressed axially outwards to form the hub (6). By forming the slot (4) in the central plane of the blank (1) a symmetrical hub (6) is produced (fig. 1c). By positioning the slot (4) to one side of the central plane an asymmetric boss (6a) can be produced (fig. 1d'). USE - Prodn. of discs with hubs.
Patent DE-4001442-A1 (DE)
Title: Defective station by=pass arrangement for optical data transmission - is activated by drop=out of electromagnet causing rocker to pivot out of direct optical transmission path
Inventor: BORCHERS DIETRICH
IPC: H04B10/275
Filed: 1990-01-19
Abstract: Data stations are connected in a ring by optical cables (11) passing through special units (10) in which signals are coupled into and out of local loops (15) via lenses (162,154;155,172). The loop (15) and the inner lenses (154,155) are secured to a rocker (21) which can pivot (30) about an axis (20), allowing direct transmission between the outer lenses (162,172). The movement is effected automatically by an electromagnet (22) which is de-energised by a defect in the local loop or the appts. connected to it. ADVANTAGE - Transmission path across loop is instituted immediately without manual intervention of operator.
Patent DE-4002621-A1 (DE)
Inventor: FIRATLI AHMET CEM DR
IPC: A45D1/02
Filed: 1990-01-30
Abstract: A heatable consumer article, in particular for hair care, has a device for flameless combustion of a fuel/air mixture and an associated activation device which initiates the flameless combustion. The device has a stable supporting body (28) of mass mT and thickness sT. The supporting body (28) has a coating with a specific area OB (determined by the BET method) and mass mB. The coating supports a catalytically active material of mass mK. To ensure high mechanical stability together with satisfactory activation capacity and outstanding resistance to poisoning of the catalyst, the ratio delta = OB.mB/mT/sT [cm<2>/cm<3>] is set in the range 0.3 x 10<6>  </=  delta  </=  30 x 10<6>.
Patent DE-4006489-A1 (DE)
Inventor: SCHLOSSER ERNST-GUENTHER DR
IPC: C23C16/448
Filed: 1990-03-02
Abstract: In the device for producing thin metal oxide films from organic metal compounds on a substrate, there is a truncated pyramidal hollow body (3) in an evacuatable housing (1). In the base (7) of the hollow body (3) and concentrically to its axis of symmetry (16) there are at least three furnaces (8) having reception devices (9) for the metal compounds (10) to be evaporated. The reception devices (9) have guide pipes (11) which project into the hollow body (3) and are inclined against its axis of symmetry (16). The casing (12) of the truncated pyramid becomes a pipe (13) with a heatable reception device (5) for the substrate (4) arranged above its end. A gas pipe (6) ends in the inside (7) of the hollow body (3) between the guide pipes (11) and the end of the pipe (13).
Patent DE-4009189-A1 (DE)
Title: Carrier frame for module insert or module housing - has fixing frame for latter enclosed by peripheral frame assembled from hollow profiles
Inventor: ACHENBACH HEINZ
IPC: F16B12/40
Filed: 1990-03-22
Abstract: The carrier frame has a fixing frame (10) with a given number of reception apertures (15) for respective module inserts or module housings, enclosed by a peripheral frame (20) assembled from hollow profile sections (21, 22) coupled together via corner elements (23). The latter have pin projections (24, 25) extending at 90 degrees to one another, fitting into the ends of the perpendicular profile sections (21, 22). The peripheral frame (20) may be divided into a number of adjacent zones, each receiving a respective fixing frame (10). ADVANTAGE - Simple adaption for different applications.
Patent DE-4021028-A1 (DE)
Title: Large vol. cellular ceramic construction elements - obtd. by foaming clay, water and chalk slurry mixt. and carbonising to produce strong calcium carbonate frame structure
Inventor: ZLATANOF BASSILIOS
IPC: C04B38/02
Filed: 1990-07-02
Abstract: Method of producing large volume cellular ceramic construction elements with high dimension tolerance and density of 150-1200 kg/m3 consists of preparing an homogeneous clay slurry containing 35-50 pbw clay and 45-50 pbw H2O; heating to 50-60 deg.C; mixing in 5-15 pbw chalk (92% CaO); producing pores in the mixture by adding Al powder or a foaming agent to produce the required raw density, feeding into a mould and leaving for 2 hr. before demoulding and cutting up into parts which are then combined and dried in a tunnel  furnace. Finally the parts are fired at 600-1200 deg.C to form a sintered final product. ADVANTAGE - The chalk forms calcium hydroxide which is carbonised to calcium carbonate in the tunnel furnace with a CO2 atmosphere. This crystal structure forms a mechanically stable frame for the material and prevents shrinkage and cracks forming during drying. Eventually mullite is produced which strengthens the clay material.
Patent DE-4024949-A1 (DE)
Title: Plastics champagne bottle stopper with hollow body
Inventor: KAU ALEXANDER
IPC: B65D39/00
Filed: 1990-08-07
Abstract: The bottle stopper contains a plastics, hollow, top-open body (1). The body inside contains a compressed, elastic member (3) in the form of a coil spring, with a load support (4) at the end facing the body opening.  The shaft (1a) of the hollow body in the bottle neck (5) holds the support in position. The space (7) between the support and a cap (9) may be filled with load exerting material (8).
Patent DE-4027722-A1 (DE)
Title: Ink-jet print head -  uses U=shaped resistive elements as electro-thermal stages for high resolution
Inventor: WEHL WOLFGANG DR ING
IPC: B41J2/14
Filed: 1990-08-30
Abstract: An ink jet printer head has a base (1) and top plate. The base plate has electro-thermal transducers (3-5) coupled (6,7) to control circuits (8,15). The cover is of silicon with grooves formed (23-25) as ink supply channels. Each of the electro-thermal stages is in the form of a U-shaped resistive layer with free ends connected to the current carrying wire (6,7). The tips and ends of the elements are coated with a low resistance aluminium layer.
Patent DE-4028312-A1 (DE)
Title: Compsn. for denitrifying water - comprises matrix enclosing heterotrophic denitrification agent and unleachable substrate
Inventor: MUELLER WOLF-RUEDIGER DIPL ING
IPC: C02F3/34
Filed: 1990-09-06
Abstract: Compsn. is prepd. by forming a matrix enclosing a heterotrophic denitrificant as biocatalyst, and a substrate for the denitrificant which cannot be leached out of the matrix. Also claimed is an immobilised biocatalyst for denitrification which contains a co-immobilised substrate. The substrate is pref. water-insol. and is a polyhydroxy-fatty acid (esp. polyvalerianic acid and/or poly-beta-hydroxybutyric acid and/or copolymers), a polylactide, starch, biologically utilisable waxes and/or S. The amt. is 0.1-20%. The matrix is a biopolymer, comprising an alginate, carrageenan, pectinate and/or chitosan, and/or a synthetic matrix, with particle size 0.25-5 mm. USE/ADVANTAGE - Use of the biocatalyst for denitrification of water is claimed. Application is esp. in processing of drinking water. The water does not become loaded with nutrient substrates or free bacteria
Patent DE-4029338-A1 (DE)
Title: Guidance system esp. for fly-by-wire missile -  responds to breakdown of location system with emergency recourse to guidance data held in electronic storage
Inventor: ALFANO MARIO
IPC: F41G7/32
Filed: 1990-09-15
Abstract: Pitch and yaw angles are measured with the tandem gyroscope of an inertial navigation system which produces steering commands from an electronic regulator to correct these deviations. On recognition of a fault, error or interference in the location and/or transmission-reception, a course maintenance signal is produced which switches the system into an emergency mode. The guidance signals previously generated and stored in an electronic memory are utilised with readings of an altimeter to maintain min. altitude. ADVANTAGE - Missile is held on course in azimuth during temporary loss of location.
Patent DE-4030952-A1 (DE)
Title: Hydraulic jack controller with proportional magnet-operated valve -  exerts fine control on fluid flow through port opened and closed by sleeve sliding along pin
Inventor: STEPRATH WERNER DIPL ING
IPC: F15B13/01
Filed: 1990-09-29
Abstract: In the blocking valve (13) a hollow piston (35) cooperates with a fixed seating (24). It carries a control pin (40) along which a sleeve (53) moves against a helical spring (54) to uncover a transverse bore (49) with a fine-adjustment notch (50). The sleeve (53) is actuated by a proportional magnet (32) whose armature (33) extends into a plunger (34). This protrudes into a projection (29) from an intermediate plate (28) across the end of the valve casing (21). ADVANTAGE - The blocking valve executes very short movements requiring little force, so that fine control is feasible with proportional magnets giving stable characteristics over a wide range.
Patent DE-4036730-A1 (DE)
Title: Shaping circuit for digital vol. command in audio systems - uses low-pass filter that avoids clicking noise when sudden change, in volume occurs
Inventor: BRUNHEIM RUEDIGER DIPL ING
IPC: H03G3/00
Filed: 1990-11-19
Abstract: An amplifier for audio signals responds to a required volume command that may change suddenly and resulting in a transient clicking noise. The audio data are combined with the volume command in a multiple stage and the output is fed to a D/A converter. The transient noise effect is avoided by using a filter to process the volume command data such to produce a smoothing action. The filter is of a first order type with a time constant that can be varied. ADVANTAGE - Provides smoothing characteristic to eliminate clicking effect.
Patent DE-4104196-A1 (DE)
Title: Recycling thermoset plastics waste esp. polyurethane and polyurea
Inventor: MEISTER BURKHARD DIPL CHEM DR
IPC: B29B13/10
Filed: 1991-02-12
Abstract: Recycling thermoset plastics waste or old articles (I), esp. polyurethane or polyurea, involves (a) reducing (I) to small pieces, e.g, turnings or granulate, with a size of max. 15mm, pref. max 5mm; (b) thermomechanical processing, esp. kneading, for 5-30 min at 130-180 deg.C; (c) mixing with a polyfunctional isocyanate (II) at max 80 deg.C in a mixer esp. a cold kneader, at max. 30 deg.C; (d) cooling the reaction mixt. immediately; and (e) then re-crosslinking by heating the mixt. in a mould for 5-20 min at 130-170 deg.C and at least 100 bar.  Pref. (I) is reduced to a size of min. 0.5mm and freed from any interfering particles (e.g, lacquer, dust, reinforcing fibres) by wind classification and/or screening. Stage (b) is carried out for 15-24 min at 140-160 (150) deg. C pref. under pressure (esp. in a pressurised kneader) at 2-10 esp. 6 bar. In (c) the mixer temp. is 10-30, esp. 20 deg.C and temp. of the material max 60 deg.C. The mixt. is cooled within 10 min in (d) and the mixt. is processed within 24h after stages (c,d). In (e), crosslinking is carried out for 15 min at 135 deg.C.
Patent DE-4108341-A1 (DE)
Title: Water-based fire extinguisher compsns. for class A fires e.g. wood, textiles, etc. - contg. potassium hydrogen tartrate, potassium carbonate and surfactant
Inventor: MANGELS JOCHEN DR
IPC: A62D1/00
Filed: 1991-03-14
Abstract: Compsns. are aq. solns. contg. 0.2-2 M KH tartrate, 0.2-2 M K2CO3 and 0.1-10 g/l of a surfactant. The compsns. also contain up to 10 g/l benzoic acid as preservative and are adjusted to pH 8-12 with tartaric acid to prevent corrosion of steel. ADVANTAGE - The compsns. have good wetting and impregnating properties, do not freeze at temps. above -30 deg.C, and have good storage stability. The ingredients are inexpensive, have low toxicity and are easily transported in powder form
Patent DE-4109813-A1 (DE)
Title: Data carrier information wireless identification arrangement - has sensing field resonator coupled to second resonance circuit coupled to amplitude discriminator
Inventor: STRIETZEL RAINER
IPC: G06K7/00
Filed: 1991-03-26
Abstract: An identification label (1) in a package (2) contains a resonator circuit, cycle control circuit, clock generator, modulator and data memory. the circuitry is excited by passing through an inductive resonator circuit (3). The packages are transferred by conveyor belt (5) through the field coil (6). The unit connects with a second resonator circuit (4) with the same characteristics as the first and is shielded against electromagnetic effects. The circuits are supplied with opposite phase voltages. A difference voltage is generated and is demodulated (16) and filtered (17) before being received by the amplitude discriminator (18) for code identification. ADVANTAGE - Provides wide physical range of operation.
Patent DE-4116883-A1 (DE)
Title: CRT horizontal deflection circuit - provides distortion correction via modulation of voltage fed to driver transformer
Inventor: SHIMAOKA KATSUAKI
IPC: H04N3/27
Filed: 1991-05-23
Abstract: The deflection circuit has an automatic focus tuning stage (1,2,3,6) providing a horizontal oscillation with a given frequency, fed to a driver transistor (5) in series with the primary winding of a driver transformer (4) receiving a modulated voltage. The transformer secondary is fed to an output transistor (7), the collector of which is pref. coupled via a choke coil (8) to the emitter of a horizontal regulating transistor (9) which is coupled at its cathode to a horizontal line diode (10), a horizontal resonance capacitor (11) and the horizontal deflection coil (12). ADVANTAGE - Correction of distortion.
Patent DE-4119615-A1 (DE)
Inventor: WAAL HUBERTUS ADRIANUS DE
IPC: A61F11/08
Filed: 1991-06-14
Abstract: The object of this patent application is a hearing-protective ear plug (1), which comprises a porous, sound damping material substance (7) in a hollow chamber. An essential feature is that the sound damping material substance (7) in the chamber (6) is formed by a granular material. In this way, the sound damping characteristic is further increased. <IMAGE>
Patent DE-4121002-A1 (DE)
Title: New substd. phenyl-acetic acid ester(s) - useful as insecticides and acaricides
IPC: A01N37/38
Filed: 1991-06-21
Abstract: Substd. phenylacetic acid esters (I) are new. Where R1 = phenyl opt. substd. by halogen; cyano; nitro; or opt. halo-substd. 1-4C alkyl, 3-6C cycloalkyl, 2-6C alkenyl, 2-6C alkynyl, 1-4C alkoxy, 2-6C alkenyloxy, 3-6C alkynyloxy, 3-6C cycloalkoxy, 3-6C cycloalkylmethoxy, 1-4C alkylthio, 1-4C alkylsulphinyl, 1-4C alkylsulphonyl, phenoxy or 1-4C alkylsulphonyloxy; R2 = tert.butyl or 1-methylcyclopropyl; R3 = opt. halo-substd. 1-18C alkyl, 3-6C cycloalkyl or 3-6C cycloalkylmethyl; except cpds. (I) where R3 = 2,2,2-trifluoromethyl Cpds. (I) have at least 80% kil rate against Aphis fabae, Nilaparvata lugens, Nephotettix cincticeps, Tetranychus urticae and Diabrotica undecimpunctata. USE/ADVANTAGE - Cpds. (I) are insecticides and acaricides. Cpds. (I) are more active and have better selectivity than cpds. known from US4199595 and US4091111.
Patent DE-4122619-A1 (DE)
Title: Fibre-optic sensor for detecting liquids and moist gases - comprising silica core, with fluoride glass cladding of lower refractive index
Inventor: STEPHANOWITZ RALPH DIPL CHEM D
IPC: G01N21/552
Filed: 1991-07-09
Abstract: A fibre optic sensor is disclosed, for detecting gaseous or liq. media. It comprises a waveguide core (1) a waveguide cladding (2) and a protective sleeve (3) which is permeable to liqs. and gases. The waveguide cladding (2) is a fluoride glass, with a lower refractive index than that of the core material and is decomposed in the presence of certain gases or liqs., pref. water, water vapour, acids or alkalies, so that the previous total reflection of light beams passing through no longer occurs when these are present. Depending on the nature of the gases or liqs. to be detected, the fluoride glass consists of a mixt. contg. different amts. of BeF2, NdF3, AlF3, KF, CaF2, MgF2 and BaF2. The layer thickness of the cladding depends on the planned temp. of use and on the type and concn. of the medium to be detected. The material used for the waveguide cladding is another glass with a low chemical resistance. The protective sleeve consists of a material which is hygroscopic or which contains substance by means of which the corrosive effect of the medium to be detected is increased. The waveguide cladding is a double- or multi-layer system. USE/ADVANTAGE - Used for monitoring electric cables, pipelines, buildings, etc. which are at risk due to water, acids, alkalis or other gases or liqs.. The construction and mfr. of the device are simple. Monitoring can be effected with standard measuring instruments. The device has a higher sensitivity than conventional sensors used for this purpose.
Patent DE-4123599-A1 (DE)
Inventor: WEHNER VOLKMAR DR
IPC: C07D295/084
Filed: 1991-07-17
Abstract: Disclosed are compounds of the formula (I), in which R(1) is H alk(en)yl or benzyl; R(2) and R(3) are H, (cyclo)alk(en)yl, phenyl, phenylalkyl, phenylalkenyl or benzhydryl(alkyl) or, together with the N, forms a ring; R(4) is H, (cyclo)alk(en)yl, alkanoyl, hydroxyalkyl, pyridyl, pyrimidinyl, pyrazinyl, phenyl, phenylalk(en)yl, benzhydryl(alkyl) or phenyl(alkanoyl); R(5) and R(6) are H, OH, halogen, (cyclo)alk(en)yl or phenyl(alkyl); R(7) and R(8) are H, (cyclo)alk(en)yl, Y-(cyclo)alk(en)yl, phenyl(alkyl), Y-(alkyl)phenyl, Y-phenyl-Y-phenyl, biphenylyl, etc; R(9) is H, (Y)-alk(en)yl or (Y)-phenyl; Y is O, S, SO or SO2; m and n are 0-4; and Aryl is phenyl or naphthyl. Such compounds are excellent antimycotics, usable for treatment and prophylaxis.
Patent DE-4125120-A1 (DE)
Title: Binary accumulator with overflow protection - comprises addition mechanism, memory unit, detector and set unit suitable for processor or digital filter
Inventor: HANS ANTON DIPL ING
IPC: G06F7/50
Filed: 1991-07-30
Abstract: The addition mechanism is connected to the memory unit, with which an input word is added to a stored word. The detector checks whether the values of the stored word lie within a predetermined value range and, where the value of the stored word are outside the predetermined value range, it generates a set signal. The detector (DE) only checks extreme values of the stored word, and where values are present outside the predetermined value range a part of the stored word is set via the set device (SR), whereby the wt. of the set part is greater than that of the largest possible input word. The detector is directly connected to the signal output of the memory unit (SE) and the set device is connected to a signal input or a set input of the memory. USE/ADVANTAGE - Digital signal processor accumulator working at higher speed.
Patent DE-4128381-A1 (DE)
Inventor: MOELLER PETER
IPC: C10L10/00
Filed: 1991-08-27
Abstract: Use of a hydrogenated, low-volatility active ingredient in additive technologies for the purpose of improving the keep-clean performance in respect of gasoline engine inlet systems and of optimizing the cost-to-benefit ratio of gasoline additives.
Patent DE-4138815-A1 (DE)
Inventor: ESSIG WILLI ING GRAD
IPC: H01H37/04
Filed: 1991-11-26
Abstract: A base (1) which is provided with mobile and mechanically loaded functional parts has a base body (3) which has the form of a continuously flat plate, on which supporting bodies (5 to 9), which are located on a mounting side (4), with connecting parts (17, 18) in the form of plates are mounted in the functionally correct position and closely adjacent, exclusively via bonded connections (10), such as fusion connections. This construction is suitable for numerous switching, control and regulating apparatuses, and enables simple manufacture, a low weight, a high strength, good accessibility and good functional reliability. <IMAGE>
Patent DE-4140329-A1 (DE)
Title: Control circuitry for fuel pump drive in vehicle system - regulates pump speed according to monitored noise level to avoid resonance conditions
IPC: F02M37/08
Filed: 1991-12-06
Abstract: The fuel pump (2) of a road vehicle system is located in the tank (1) and the pump speed is controlled by an electronic unit (5) coupled to a drive amplifier (4). The speed of the pump is set by an input (6) to the controller. The electronic controller also receives an input from a sensor (8) located in the tank that monitors the noise level generated. Typically the noise level increases linearly with speed and the characteristic exhibits resonances. The controller effects a small change in speed to avoid resonant conditions and so avoids high noise levels. ADVANTAGE - Reduces generated pump noise.