baber/WOPTO huggingface dataset:
Patent DE-4002232-A1 (DE)
Title: Linearly sliding carriages opening and closing folding doors - moves horizontally inside crossbeam box resting on two column boxes contg. other drive parts
Inventor: KUENTZLER RICHARD
IPC: E05F15/12
Filed: 1990-01-26
Abstract: The drive system has no parts outside the door frame so that the contours of the frame are identical to the complete outer contours of the drive system and the door. The door frame consists of a box structure with two verticak hollow columns and one top horizontal hollow cross-beam. Carriages inside the cross-beam are attached to the tree ends of the folding doors and expand or collapse the doors. Each of the two doors consists of hinged leaves, the last of which is hinged to the associated column. The cross-beam has a horizontal slot through which arms project from the carriages and link to the doors. A micro-processor controls the drives and overseas behaviour. ADVANTAGE - Easy to instal.
Patent DE-4003012-A1 (DE)
Inventor: ILLIAN GERHARD DR
IPC: C07D239/26
Filed: 1990-02-02
Abstract: Geminate dimethylalkyl compounds with general formula (I) can be used to good advantage in liquid crystalline mixtures. In the formula, R<1> is, for example, a straight or branched chain (with or without asymmetric C-atom) alkyl or alkenyl with 2 to 16 C-atoms; A<1>, A<2>, A<3> are the same or different and represent, for example, 1.4-phenylene, 1.4-cyclohexylene or pyrimidin-2.5-diyl; M<1>, M<2> are the same or different and represent CO-O, O-CO; G is, for example, the same or different straight or branched chain alkylene with 1 to 16 C-atoms; k, l, m, n are zero or 1; and R<6> is straight-chain alkyl with 1 to 10 C-atoms. The compounds described offer a lower point of fusion in liquid crystalline mixtures, a shift in the thermal limit of the Sc-phase in ferroelectric mixtures, and other improvements in important electro-optical characteristics.
Patent DE-4005726-A1 (DE)
Title: Gallium alkyl cpds. prodn. - by reaction of gallium halide cpds. with alkyl-aluminium halide(s) in presence of metal halide(s) as auxiliary bases
Inventor: SUNDERMEYER WOLFGANG PROF
IPC: C07F5/00
Filed: 1990-02-23
Abstract: Gallium alkyls (I) are produced by reaction of Ga halogen cpds. (II) with alkylaluminium halides (III) in the presence of metal halides (IV) as auxiliary bases.  (II) are Ga trihalides, alkylgallium dihalides or dialkylgallium halides, pref. coresp. chlorides;  (III) are dialkyaluminium halides, alkylaluminium dihalides or mixts. thereof or "sesquihalides" (R3Al2X3), pref.  corresp. chlorides, pref. obtd. in situ by addn. of Al halide to trialkylaluminium; (IV) are Gp. I-III metal halides, pref. chlorides, esp. NaCl and/or KCl; reaction temp. is 70-450 deg.C; reaction is carried out in the liquidus region of the educt mixt. up to the temp.  at which marked decomposition of educts and/or prods. begins. USE/ADVANTAGE - (I) are useful for the prodn. of III/V semiconductors, esp. Ga/As and Ga/P, by CVD processes, partic. using the volatile lower alkyls.  The process enables the prodn. of (I) in higher yield and purity (w.r.t. prior art processes), from cheap and readily available precursors.
Patent DE-4005774-A1 (DE)
Title: IC engine fuel-injection nozzle - has coaxial thrust pins with fingers passing between each other and supporting springs
Inventor: HOFMANN KARL DIPL ING
IPC: F02M61/20
Filed: 1990-02-23
Abstract: The fuel-injection nozzle has a needle valve sliding in a body secured to a holder. A chamber in the latter accommodates two coil-type compression springs acting in succession on the valve. The first spring, furthest from the nozzle, is supported by the bottom of the spring chamber, and acts via a thrust pin passing through the second spring on the valve. The second spring is supported by the housing and acts via a thrust member on the valve. The second spring (28) is supported from the bottom (34) of the spring chamber (24) by a second thrust pin (50) coaxial to the first (30) and passing through the first spring (26). The ends of the two pins towards each other have heads (38, 52) with fingers (40, 54) alongside and passing between each other, and on which the springs are supported.
Patent DE-4011190-A1 (DE)
Title: Recuperative burner for industrial plant
Inventor: ALTEMARK DETLEF DR ING
IPC: F23D14/66
Filed: 1990-04-11
Abstract: The recuperative industrial burner has a combustion chamber (1) connected to fuel and air pipes (4,9), with an annular ceramic recuperator forming the air pipe, and the exhaust gas flowing through it in the opposite direction.  The recuperator comprises an inner wall (6), a heat transfer middle wall (7) and an outer wall (8). The middle wall forms folds in the flow direction, and the inner one ends upstream of the combustion chamber to form an air opening (11). The combustion chamber is inserted in the middle wall and guided by its folds.
Patent DE-4014832-A1 (DE)
Inventor: KLUTH HANS-JUERGEN DIPL ING
IPC: H04N5/782
Filed: 1990-05-09
Abstract: A NICAM sound carrier is transmitted which is modulated with digital sound signals. The purpose is so to construct a VHS video recorder that this sound carrier can be recorded in addition to the other signals without adversely affecting the quality. The NICAM sound carrier is therefore recorded in a deeper layer (S2) with second magnetic heads (K2) in frequency multiplex with EM sound carriers (T1, T2) at lower frequency. Usable especially for an S-VHS video recorder with multi-standard sound recording.
Patent DE-4015780-A1 (DE)
Title: Compression control for electromagnetic reciprocating-piston pump
Inventor: KAWAMURA AKIRA
IPC: F04B49/08
Filed: 1990-05-16
Abstract: The pump (31) incorporates two electromagnetic drives (26,27) driving a compressor (28) of fluid into a pressure tank (29). The instantaneous pressure is measured by a transducer (11) whose output is compared (22) with that of the command generator (1), to control an oscillator (23) driving a pulse generator (24). Pumping speed and (if necessary) piston stroke are adjusted by frequency and amplitude modulation of the half-wave AC supplied by an inverter (25) to the stator excitation windings (26L,27L).
Patent DE-4022117-A1 (DE)
Inventor: SMETS HANS-FRIEDRICH
IPC: B22D11/111
Filed: 1990-07-11
Abstract: A powdered casting agent (6) is taken in the fluidised state from a reservoir (1) and fed by a worm conveyor (10) over a continuous casting die (12). At the end of the worm conveyor (10) there is a return line (30) via which the quantity of casting agent (6) not taken up by the distribution points (19) over the bath surface (18) is fed back in circulation into the reservoir (1).
Patent DE-4025289-A1 (DE)
Title: Displaying text on visual display screen - transferring character from less dense to denser raster by automatic addition of raster points and decoding
Inventor: BRUNNER FRANZ
IPC: G09G5/26
Filed: 1990-08-09
Abstract: The method of displaying text characters on visual display screens using point rasters involves transferring the characters of a first raster with fewer raster points per character and line to the screen of a visual display device with a second raster with more raster points per character and line. During the transfer to the second device an additional raster point is automatically added to each nth raster point in the original raster using a decoding method. ADVANTAGE - Enables simple transfer of text from raster with fewer point per line and character to be clearly represented in raster with more points.
Patent DE-4029755-A1 (DE)
Title: Three phase generator driven by IC engine pref. for motor vehicle - has stator winding connected in star which is connected to 3-phase rectifier bridge circuit with positive and negative output terminals
Inventor: RAGALY ISTVAN DIPL ING
IPC: H02J7/16
Filed: 1990-09-20
Abstract: An autixiliary diode (16,16a) is exclusively only interposed between one of the outputs (B+ or B-) of the rectifier bridge circuit (13) and the star point (Mp) of the stator winding (11). The auxiliary diode with the diodes (14,15) of the rectifier bridge circuit leading to this output (B+ or B-) is arranged with a polarity permitting the same passage direction. The three winding phases (U,V,W) of the stator winding (11) are connected in the known manner to an excitation winding of the generator (10) and a terminal (D+) of a voltage regulator (22) across three excitation diodes (21). A further terminal (D-) of the voltage regulator (22) is connected to that output (B-) of the rectifier bridge circuit (13), which is also connected to the auxiliary diode (16a). ADVANTAGE - Use of single auxiliary diode effects only moderate increase of current from average rpm range, to give power matching and reduced ripple of DC output voltage, also gives cost saving.
Patent DE-4031138-A1 (DE)
Title: Micro-injection device - with piston in micro-syringe moved by piezoelectric element turning a rotational element
Inventor: HIGUCHI TOSHIRO
IPC: C12M3/00
Filed: 1990-10-02
Abstract: A microinjection device e.g. for injecting a foreign gene in a vegetable or animal cell and studying the changed properties of the gene has a microsyringe (40) with a piston (43). A moving part (35) is applied to the piston end. It includes a first micromotion (A) with an inert element (36), a piezoelectric/piezorestrictive part (37) and a second micromotion (B) with an inertia element (38) and a piezoelectric/piezorestrictive element (39).
Patent DE-4033441-A1 (DE)
Title: Calibrating and cooling device for extruded plastic tubes - has calibrating and sealing rings at entry and exit of evacuated pass through cooling chamber
Inventor: NEUMANN ULRICH
IPC: B29C48/90
Filed: 1990-10-20
Abstract: A calibrating and cooling device for extruded plastic tubes has calibrating and sealing rings at entry and exit of the evacuated pass-through cooling chamber. Guide elements from entry to exit are equipped with spray nozzles and outflow openings for the coolant. ADVANTAGE - This calibrating/cooling device requires little apparatus and labour. A tube is safely guided through the device.
Patent DE-4036508-A1 (DE)
Title: Oily wood preservative contg. 3-halo-5-methylthio-thiadiazole deriv. - effective against wood destroying and staining fungi, with low toxicity and good UV stability
Inventor: WALEK WOLFGANG DR
IPC: B27K3/34
Filed: 1990-11-16
Abstract: Oily wood preservative with a broad spectrum of activity, pref. against wood-destroying and wood-staining fungi, contains, aparts from usual formulation auxiliaries and opt. known fungicides, a thiadiazole deriv. of formula (I), where X = Br or Cl; n = 0-2; R = phenyl or gp. of formula (i).  Pref. (I) is 0.1-5 wt% and the compsn. contains, apart from organic solvents, 1-10 wt% water-repellant agent (solid paraffin, chlorinated paraffin or silicone oil) and/or 0.5-20 wt% binder (i.e. (boiled) linseed oil, alkyd resin, (chlorinated) vinyl resin and/or soluble polymers such as resins, bitumen or tar oil). USE/ADVANTAGE - These compsns. provide comprehensive protection against fungi. (I) are nearly odourless, stable against UV light and are of lower toxicity than known wood preservatives. They have adequate solubility in organic solvents; penetrate well into wood and are fully active at 0.3-1.1 kg/cu.m.
Patent DE-4037027-A1 (DE)
Title: Electrical appliance with DC motor and dropping resistance e.g. hair-drier - is constituted by third wire incorporated in flex from mains connector, and air-cooled by natural convection
Inventor: HENNING KURTH
IPC: H02J7/02
Filed: 1990-11-21
Abstract: The appliance (e.g. hair dryer) incorporates a low-voltage DC motor (1) fed by a rectifier (2) of the alternating current supplied from contacts (3a, 3b) with the outer slip-rings (3c, 3d) of a rotary connector (3). The central ring (3e) and contact (3f) are switched (6) to a heating element (7). The supply voltage to the motor (1) alone is dropped by a resistance wire (5) extending from the live pin (4c) within the flex (4) to one slip-ring (3d), and insulated by the cable sleeve. USE/ADVANTAGE - E.g. for hair drier. Air contained within appliance is not heated by energy dissipated in voltage-dropping resistance.
Patent DE-4037817-A1 (DE)
Inventor: BAUER KARL
IPC: B01D69/08
Filed: 1990-11-28
Abstract: The invention relates to a process for the production of a multi-layer membrane for the separation of gas mixtures, the membrane consisting of a polymeric supporting membrane with a void volume of more than 50% and a coating of at least two separating layers of at least two different polymers, characterised in that the hollow capillary serving as support membrane is passed through the central bore of a nozzle and that the nozzle has one or more concentric annular slots and/or annular grooves, through which in each case a solution of the polymers forming the separating layers is applied to the supporting membrane, the nozzle ending in a closed chamber in which the solvent or solvents of the polymer solutions are evaporated and removed, and the coated supporting membrane is drawn out of the chamber and, if appropriate after an aftertreatment with heat and/or liquids, is wound up, and to a membrane produced by this process.
Patent DE-4102837-A1 (DE)
Title: New 1,3-dioxan derivs. - useful as components of liq. crystal media for electro=optical display elements
Inventor: REIFFENRATH VOLKER
IPC: C07D319/06
Filed: 1991-01-31
Abstract: Dioxan derivs. of formula R-(A-Z)m-B-(CH2)n-Q-(CH2)o-CH3- (j+k)FjClk (I) are claimed; R = 1-15C alkyl, opt. with 1 or 2 non-adjacent CH2 gps. replaced by O, CO or CH=CH; A = 1,4-cyclohexylene, 1,4-phenylene, or 2-fluoro-, 3-fluoro- or 2,3-difluoro-1,4-phenylene B = gp. (i) or gp. (ii); Z = single bond or -CH2CH2-; Q = single bond, -CH=CH- or -CC-; m = 1 or 2; n, o = 0 or 1-10; j, k = 0 or 1-3; j + k = 1, 2 or 3; if j = 3, Q = single bond and n + o = 0. USE/ADVANTAGE - (I) are useful as components of liq. crystalline (LC) media for electro-optical display elements (claimed); also claimed are LC media with at least 2 LC components, at least one of which is a cpd. (I), and electro-optical display elements contg. such LC media. LC media contg. (I) have a wide nematic range, excellent low-temp. nematogenicity, chemical stability and elastic properties, with positive dielectric anisotropy and low threshold voltage.
Patent DE-4104149-A1 (DE)
Title: Wind deflector for utility vehicle - consists of two sections with central part for size adjustment
Inventor: HANNIG MARTIN
IPC: B62D35/00
Filed: 1991-02-12
Abstract: The wind deflector (1) is to reduce the air resistance of vehicle bodies or trailers, and is located esp. on the roof of the driver's cab of a utility vehicle. It has air guide vane sections (4,5), extending in longitudinal direction of the vehicle, and adjustable at right angles to it. There are two relatively adjustable vane sections, the first of which is formed as the laterally reversed base (6) of the second one. A sunk central vane section (7) is formed along the base. The top of this engages with the associated longitudinal edge (8) of the first vane section, in any position.
Patent DE-4104423-A1 (DE)
Title: Room ventilation installation with waste heat recovery - uses electronic switch controlling rotation of fan and heat storage battery
Inventor: KLAWITTER ERICH
IPC: F24F7/013
Filed: 1991-02-14
Abstract: The ventilation installation has a heat store (6) comprising several stages (7), each with a number of relatively spaced heat storage plates, extending in parallel between side elements (5). The evacuated air and the fresh air are fed between the heat storage plates in alternation, via a fan (2). An internal air grid (1) cooperates with a safety switch (4) controlling the current supply for the fan (2), using two triacs and an electronic time control allowing the air flow direction to be reversed. ADVANTAGE - High energy efficiency. Increased life span of ventilator. Higher enthalpy exchange level between exhaust and fresh air. Easier mfr. and cleaning possibilities.
Patent DE-4106646-A1 (DE)
Title: Machine for removing and mixing animal fodder - consists of mixing chamber with chain operated mixing racks and guillotine on telescopic arm
Inventor: STRAUTMANN HEINRICH
IPC: B01F13/00
Filed: 1991-03-02
Abstract: A machine for removing, mixing and distributing animal fodder consists of a mixing chamber (3), at the bottom of which are two sets of transverse rods (16, 18) connected to two chains (13, 17) respectively running around chain wheels (14, 19). An overhead telescopic arm (6, 7) is hydraulically operated to swing up or down about an axle at the upper rear of the chamber (3), and at the end of the arm (7) is a cutting shield (8) which chops down into a silage stack and draw it into the mixing chamber (3) where it is mixed and discharged through a side hatch. USE/ADVANTAGE - More intensive mixing and a better quality product.
Patent DE-4106700-A1 (DE)
Title: Vibration attenuating metallic support plates - made by plasma spraying thin coating of aluminium oxide or chromium oxide ceramic
Inventor: ECKERT ARMIN
IPC: F16D65/00
Filed: 1991-03-02
Abstract: Vibration damped metallic support plates are produced by a thin coating of oxide ceramic material. The ceramic Al2O3 or Cr2O3 is applied to the metal by plasma spraying and must be at least 30 micron thick. In addn. to the oxide ceramic coating, the support plates should be equipped with a friction coating on the reverse side. USE/ADVANTAGE - Useful in motor vehicles, they absorb both vibration and sound. The coatings have good adhesion to the plate and high stability to temp. It is long lasting
Patent DE-4111159-A1 (DE)
Inventor: ALBERT BERNHARD DR
IPC: A61K49/00
Filed: 1991-04-06
Abstract: Methine dyes have the polyketone grouping (I), in which the variables have the following meaning: A represents (a) or (b); R<1> represents a 5 or 6-membered cycloaliphatic residue with one or two heteroatoms from the group -NR<4>-, -O- and -S-, that can be annelated with an iso-or heteroaromatic group, whereas R<4> represents C5-C7 cycloalkyl or phenyl, that can carry as substituents halogen, C1-C4 alkyl or C1-C4 alkoxy; C1-C20 alkyl, the C chain of which can be interrupted by one to five ether function oxygen atoms and that can carry the following substituents: hydroxyl, phenyl, 1,3-dioxan-2-yl, 1,3 dioxolan-2-yl, -NHR<5>, -NHCOR<5>, -CONHR<5>, -OCONHR<5>, -N<+>(R<5>)3.An<->, -SO3H or -SO3<->Ka<+>, where R<5> represents one of the unsubstituted or hydroxyl- or phenyl-substituted alkyl residues R<4> or phenyl, whereas the residues R<5> may be different or the same when they represent -N<+>(R<5>)3, and An<-> is an anion equivalent and Ka<+> is cation equivalent; R<2>, R<3> can be different or identical C1-C10 alkyl groups or can form together a residue R<1>; m, n identical or different integers from 0 to 3. These dyes are useful as medicaments, for generating singlet oxygen, as sensitizers in electrophotographic layers and for photopolymerizations, and as laser light-sensitive dyes in optical recording media; also disclosed are new triketomethine and tetraketomethine dyes.
Patent DE-4123662-A1 (DE)
Title: Drinking bottle fitting into a school-bag - is in various sizes, incorporates a drinking-straw and has a screw fastening
Inventor: HENGERER BRITTA
IPC: A45F3/18
Filed: 1991-07-17
Abstract: The drinking-bottle is designed to fit into a child's school-bag. It is adapted in shape and size to the bag. The bottle incorporates a drinking-straw. The contents of the bottle cannot spill out because of the screw fastening and beaker forming its lid. The bottle can be in 125, 500, and 1,000 millilitre sizes, and may fit into bags of a variety of different shapes. ADVANTAGE - The bottle fits with the child's snack into the food-part of the satchel.
Patent DE-4126602-A1 (DE)
Inventor: WILLE LOTHAR DIPL ING
IPC: B21J15/16
Filed: 1991-08-12
Abstract: The blind-riveting tool has a puller mechanism with grip moved by an electric motor via a gear train. The velocity ratio of the gear train (9 - 16) is independent of the position of the puller mechanism (4), and forms a permanent coupling between the motor (5) and the matter. Puller mechanism movement is controlled solely by the motor. The gear train can incorporate balls working between a screwed spindle (16) and a nut (15), the latter having external teeth and being driven by the motor, while the former is coupled to the puller mechanism.
Patent DE-4128178-A1 (DE)
Title: Fuel level measurer in fibre reinforced laminated tank of aircraft - has non-magnetic sensing tube contg. magnetic float and carrying Hall probes communicating with interior of tank
Inventor: JANSSEN INGOLF
IPC: B64D37/06
Filed: 1991-08-24
Abstract: An arrangement for measuring liquid levels in tank arrangement of fibre-reinforced compound materials contains a level sensor which influences an indicator via an evaluation device (6). The sensor consists of a tube (2) of non-magnetic material which communicates with the tank interior and contains a magnetic float (4) whose height varies with the level of liquid. Several Hall probes connected to the evaluation circuit and influenced by the magnetic float are mounted on the outside of the tube. ADVANTAGE - Safe for installation in aircraft.
Patent DE-4135862-A1 (DE)
Title: Superconducting DC-voltage standard -  comprises integrated series of Josephson tunnel-elements and microwave oscillator
Inventor: GUTMANN PETER
IPC: G01R19/00
Filed: 1991-10-31
Abstract: The voltage standard and measurement standard for resistance, voltage and current, uses microwave action on Josephson tunnel elements. On a substrate monolithic integration is made of the oscillator and the serially connected Josephson tunnel elements with DC voltage taps. Further planar components used are damping devices, DC blocking, decoupling elements and transition from the strip guide to a non-planar wave guide. The substrate is pref. the mechanical support as well as the dielectric for the strip guide and the chain. Unused microwave energy is coupled to a non-planar waveguide and can be used for verification of the frequency and/or frequency stabilisation in a phase-control circuit with a frequency standard. The active element of the oscillator can be integrated either monolithically or in a hybrid circuit in the form of an unpackaged or assembled die. The microwave energy output is regulated by the drain-source voltage of the FET and the frequency by a variable capacitance. USE/ADVANTAGE - The integration allows reduction of the energy used and improved control of the microwave energy used. The construction is smaller and can be more easily cooled to 4.2 deg.K. as required for the operation of the tunnel elements. Microwave energy losses are reduced. Energy output can be controlled over a range of up to 35 dB. Evaporation of the dielectric is superfluous, and the microwave resistance of the chain conductor can be increased to 50 ohm, improving coupling to the oscillator. More Josephson tunnel elements can be integrated due to reduced damping. The device is used for the generation of quantised DC voltages for use as a DC voltage standard.
Patent DE-4140295-A1 (DE)
IPC: C09D7/41
Filed: 1991-12-06
Abstract: Improved gloss pigments are produced by coating platelike substrates and are characterised in that an aqueous suspension composed of a metallic salt and of metal oxide and/or dyestuff particles is hydrolytically precipitated on the platelike substrat as a metal oxide-and/or dyestuff particles-containing metal hydroxide layer.
Patent DE-4141041-A1 (DE)
Inventor: KLAUSS GUENTER
IPC: B05B12/24
Filed: 1991-12-13
Abstract: A covering film (1) for protecting surfaces, which must not be contaminated during the machining of neighbouring surfaces, consists of a strip-shaped film web (2) folded like a concertina in the longitudinal direction. The folding is carried out in such a way that, next to one of the side edges (3), a strip is left free in which the covering film (1) is single-ply. At this point, there is a reinforcing strip (12) which carries the adhesive (13) on its side facing away from the film web (2). The thickness of the reinforcing strip (12) corresponds to the thickness of the folded-in region. <IMAGE>