baber/WOPTO huggingface dataset:
Patent DE-3924022-A1 (DE)
Title: Josephson tunnel element prodn. - using similar metal oxide material for tunnel barrier and electrode layers
Inventor: HOFER GERHARD DR
IPC: H01L39/24
Filed: 1989-07-20
Abstract: Prodn. of a Josephson tunnel element, comprising a substrate supporting base electrode and counter-electrode layers which sandwich a non-superconductive tunnel barrier layer, involves (a) depositing, at predetermined temp. and oxygen partial pressure, at least a base electrode layer of metal oxide superconductor material which has a high critical current density in the layer plane and which has a superconducting phase with high Te and ordered crystal structure; (b) using a substrate with a texture matching the crystal structure dimensions of the superconducting phase; and (c) producing the tunnel barrier layer from one or more components of the superconductive material. The novelty  comprises either (i) depositing a tunnel barrier layer of a metal oxide material at a temp. and/or oxygen partial pressure sufficiently lower than the temp. and/or oxygen partial pressure used in step (a) that a non-superconducting phase is obtained; or (ii) depositing a metal oxide tunnel barrier layer from a material similar to the base electrode layer material but in which at least one of the metallic components is (partially) replaced by another component so that a non-superconducting phase is obtd. ADVANTAGE - Controllability and reproducibility of tunnel barrier layer prodn. is facilitated and critical current densities of at least 10 4 A/sq.cm. are achieved in the layer plane of at least the base electrode layer without the need for a high temp. process for forming the superconducting phase.
Patent DE-3925969-A1 (DE)
Inventor: DAUB WOLFGANG DR
IPC: C07D241/44
Filed: 1989-08-05
Abstract: In a process for preparing 2,6-dicholoroquinoxaline, 6-chloro-2-hydroxyquinoxaline-N-oxide is hydrogenated in sodium hydroxide aqueous solution in the presence of approximately 0.001 to approximately 0.5 mol per cent, referred to the 6-chloro-2-hydroxyquinoxaline-N-oxide used, of a platinum shell catalyst at temperatures of approximately 20  DEG C to approximately 120 DEG C at a hydrogen pressure of approximately 1 to approximately 100 bars. Approximately 1 to approximately 3 equivalents of sodium hydroxide, referred to the 6-chloro-2-hydroxyquinoxaline-N-oxide used, are added. After removal of the catalyst from the hot solution, the dissolved 6-chloro-2-hydroxyquinoxaline-N-oxide is precipitated as the sodium salt in crystalline form by cooling the reaction solution to a temperature of approximately 0 to approximately 20  DEG C. It is then dried azeotropically with an inert solvent and chlorinated in the usual manner with a chlorinating agent to 2,6-dichloroquinoxaline.
Patent DE-3926102-A1 (DE)
Title: Transmitting digital signal(s) over subscriber line - using supply DC, which is modulated by digital signal in supply DC branch
Inventor: ZANZIG JUERGEN DIPL ING
IPC: H04M19/00
Filed: 1989-08-08
Abstract: In the signal transmission over a telephone subscriber line d.c. is supplied to a subscriber line via two feed current branches. In one current branch (1, 2) the feed current is modulated with the digital signal. In a transmission circuit the connection of the feed voltage source takes place over a series connection of a collector-emitter path and an emitter-resistor to one core of the subscriber line. One transistor emitter is coupled to a constant current source, controllable by the digital signal. The constant current source is pref. formed by a series connection of the transistor emitter-collector path and its emitter-resistor. ADVANTAGE - Facility for transmitting digital signals, possibly together with analog ones.
Patent DE-3927210-A1 (DE)
Inventor: POZZI LUCIANO
IPC: D03D47/36
Filed: 1989-08-17
Abstract: The invention concerns a process for storing yarn, in particular yarn with fibres projecting out to the side of the main body of the yarn, on a cylindrical storage surface. The incoming yarn is laid externally on a contact zone running round the cylinder and is wound in coils. Fibres projecting from the first coil of wound yarn into the contact zone are removed in the contact zone at least immediately before the incoming yarn is laid on the storage surface. A yarn storage and supply device suitable for carrying out the process includes a mechanical, pneumatic or electrostatic charge-removal device (X) which is aligned at least with the edge of the contact zone (A) which is located immediately in the path of the yarn (Y1) coming on to the storage surface (5).
Patent DE-3927437-A1 (DE)
Title: Polyphase AC network symmetrisation with undelayed load control - involves predictive power factor correction by adjustable inductance and capacitances at each onset of load current
Inventor: HOFFMANN REINHARD DIPL ING
IPC: H02J3/18
Filed: 1989-08-17
Abstract: A resistive and inductive load (1) is supplied from two lines (L2,L3) of a three-phase network (N) via an AC limiter (T). The load current (iL) and voltage (u) are measured (4) and their peak values used to obtain (5) the load phase angle (phi L) and reference power (SBEZ). Active power (P) and fundamental frequency reactive power  (Q50) are found by table lookup (7,6) and applied to control (8-10) the in-phase compensating capacitor (KC) and out-of-phase symmetrising capacitor (SC) and inductor (SL). USE/ADVANTAGE - Esp. against imu impulsive loading by single-phase resistance welders. Inductive and capacitive corrections are performed with practically no delay.
Patent DE-3927807-A1 (DE)
Inventor: HOELTER HEINZ DIPL ING
IPC: F24F8/24
Filed: 1989-08-23
Abstract: Air ducts and air-conditioning ducts for ventilation systems have a surface designed to have a bactericidal and fungicidal action. This design results in the air flowing through the air duct being subjected to a chemical treatment. In order to improve the chemical action, the invention proposes that the internal surface of the duct has strongly alkaline and strongly acidic sections which alternate in separate zones along the duct in the direction of flow of the air.
Patent DE-3928458-A1 (DE)
Title: Prepn. of alkoxy-phosphoryl:oxy cpds. - useful as intermediates for antiviral(s), etc. comprises acid-catalysed reaction of acetal or ketal with phosphane
Inventor: FELDHUES MICHAEL DR
IPC: C07F9/655
Filed: 1989-08-29
Abstract: Prodn. of alkoxy-phosphoryloxy cpds. (I) comprises reacting an acetal or ketal (II) with a phosphane (III) in the presence of a Lewis or Bronsted acid with the exclusion of moisture and opt. in an inert solvent. R1, R2 = H, 1-4C alkoxycarbonyl, cyano, or -(CH2)n-X-C(R6,R7)-Z-(CH2)m-R8 (a); and R3 = 1-10C alkyl or -(CH2)r-OH; or R1+R2 or R1+R3 = -(CH2)p-C(R9,R10)-(CH2)q- (b); R4, R5 = 1-10C alkyl, alkoxy, monocyclic aryl(oxy) or R4+R5 = -A-(CH2)s-E-; R6, R7, R8 = H, 1-4C acyclic hydrocarbyl, monocyclic aryl, 1-4C alkoxy(carbonyl), 1-4C alkylamidocarbonyl or cyano or R8 and R6 or R7 = NO2 or P(O)R4R5 or R6 = OR3 and R7 = OR11; R9, R10 = H, 1-4C alkyl, 2-4C alkenyl, 2-4C alkynyl, monocyclic aryl, 1-4C alkoxy(carbonyl), 1-4C alkylamidocarbonyl, CN, NO2, or P(O)R4,R5; R11= 1-10C alkyl or -(CH2)r-OH; A, E = O or CH2; L = O, NH, N(1-4C alkyl) or CH2; X, Y = a bond, vinylene or acetyl; n, m, p, q, r = 0-10, but n+m is not greater than 15; s = 2-10. USE/ADVANTAGE - Cpds. (I) are intermediates for antivirals, herbicides and flameproofing agents. Compared with known processes e.g. as described in Chem. Ber. 108, 2279-2289 (1975), the new process is simple, gives higher yields of cpds. (I), uses accessible starting materials and does not require costly sepn. methods.
Patent DE-3929108-A1 (DE)
Title: Wet strength paper is prepd.
Inventor: GANIEV RASID GANEVIC
IPC: C08B15/00
Filed: 1989-09-01
Abstract: Wet strength paper is prepd. by (1) addn. to cellulose suspension of polyaminopolyamide-epichlorohydrin resin (I) and, as polymerisation accelerator, reaction prod. (II) of carboxymethylcellulose or its Na salt, having degree of substn.  at carboxmethyl gps. 0.25-0.70 and contg. 20-40 wt.% basic substance, with epichlorohydrin, in molar ratio 1.0:0.02-0.04 (2) forming cast paper prod from mixt. (3) drying and pressing. 0.1-1.5% (II) on absolutely dry wt. of cellulose in suspension is used. Fillers and functional additives are also added to cellulose suspension.
Patent DE-3930569-A1 (DE)
Title: Oil or gas burner mixing system - has coaxial air guide tube round nozzle stem of length twice hydraulic dia
Inventor: SCHILLING SIEGFRIED W
IPC: F23C9/00
Filed: 1989-09-13
Abstract: The mixing system is for a burner, having a nozzle stem extending axially in a housing through which combustion air is delivered. A flame tube joins axially onto the housing, there being a partition between them. A coaxial guide body enclosing the fuel nozzle at the outlet end directs air through the partition. The body consists of a tube (24) round the nozzle stem (12), and whose length (L1) is at least twice its hydraulic diameter. The cross-sectional area of the air passage in the housing is at least three times that of the tube. The casing of the flame tube (18,20) contains gas ports leading to the surrounding combustion chamber (48). USE/ADVANTAGE - Simple mixing system usable with all types of burner.
Patent DE-3935173-A1 (DE)
Title: Controlling electromechanical door drive - using program to allow self-teaching or separate input of door panel type
Inventor: SOHNS PETER
IPC: E05F15/614
Filed: 1989-10-21
Abstract: A control hardware system is used with a computer which is laid out for control of a swinging door. The control of the hardware is programmed in that a test program could provide self-teaching or external input can be made so as to determine whether a single leaf or double leaf door is used with or without a fold or push-through. The programming of the hardware may take place before or after putting into operation. External input may take place via a code switch, a key pad, a disk store or the like. There may be a measuring signal for the actual state of the door, or the drive fed to the control device.
Patent DE-3939012-A1 (DE)
Title: Vehicle shock absorber - has operating cylinder with piston and piston rod, with chambers having inner and outer walls
Inventor: BECK HUBERT
IPC: F16F9/32
Filed: 1989-11-25
Abstract: The shock absorber for vehicles has an operating cylinder (1) divided into two operating compartments (2, 3) by a piston (5) fixed to a piston rod (4). The operating cylinder is coaxially enclosed by at least one further compartment. The inner (8) and outer (9) walls of at least one chamber (6) are in one piece and joined by axial bridges. The wall of the operating cylinder is joined to the inner wall by lengthwise bridge pieces. Between the wall (11) of the operating cylinder (1) and the outer wall (9) is at least one bypass (7) running longitudinally. USE/ADVANTAGE - The shock absorber has at least one coaxial outer compartment.
Patent DE-3940187-A1 (DE)
Title: Continuous conductive polymer film mfr. - in electrochemical cell with endless belt designed with moebius surface
Inventor: NAARMANN HERBERT DR
IPC: C08G61/12
Filed: 1989-12-05
Abstract: A continuous method of producing films of electrically conductive polymers esp. pyrroles, is based on the electrochemical polymerisation of substd. pyrroles or non-substd. pyrrole or mixts. of pyrroles with co-monomers in an electrolytic solvent in the presence of conductive salts which forms the electrolyte (2) in the cell (1). A cathode (3) is immersed in it and the film is deposited on an endless belt (4) acting as the anode. This belt is designed as a moebius surface and the 180 deg. turn can be effected inside or outside the electrolyte. The film formed (6) can be extd. and wound up to a coil. ADVANTAGE - Forms the film on alternating sides of the endless belt.
Patent DE-3942550-A1 (DE)
Title: Analog integrator circuitry with HF tolerance - uses two parallel arrangements of resistance, transistor and inductance
Inventor: OFENLOCH THOMAS DIPL ING
IPC: G06G7/182
Filed: 1989-12-22
Abstract: A signal (ue) is fed to base of transistor (1). A resistor (3) and an inductor (4) are connected to the collector and emitter of transistor (1) respectively. A similar arrangement runs in parallel. Positive circuit voltage is applied to resistors (3,6) and negative voltage, via constant current device (9) to the inductors (4,7). The integrated signal (ua) can be taken off at the collector of transistor (5). The inverse signal (bar ua) operates at the collector of the transistor. Response can be improved by additional transistors at the collectors of the transistors (1,5) and by resistors parallel to the inductors (4,7). USE/ADVANTAGE - Active integrater integrating wide band signals over several frequency octaves without errors.
Patent DE-3943345-A1 (DE)
Title: Thin-walled ferritic spheroidal graphite cast iron article - contains pearlite, and fine gaps between graphite particles and ferritic matrix are absent
Inventor: OBATA FUMIO
IPC: C21D5/02
Filed: 1989-12-29
Abstract: In high strength article of ferritic spheroidal graphite cast iron contg. max. 10% pearlite, fine gaps between the graphite particles and the ferritic matrix are absent. Prodn. involves (a) casting; (b) demoulding by mould breaking while the cast product is at its A3 temp. or above over its entire cross-section; (c) immediately introducing the cast product into thje uniform temp. region of a through-furnace held at the A3 temp.  or above and holding the cast product at this temp. for up to 30 mins to decompose the cementite content of the matrix; and (d) transferring the cast product into the cooling region of the through-furnace for cooling at a rate to obtain a ferritic matrix. USE/ADVANTAGE - A thin-walled, high strength, spheroidal graphite cast iron article with good mechanical properties, esp. increased fatigue strength, is obtain with low thermal energy consumption.  The article is useful as a suspension component for an automobile.
Patent DE-4000193-A1 (DE)
Inventor: DIECKMANN HEINRICH
IPC: C02F3/10
Filed: 1990-01-05
Abstract: Pollutants, in particular heavy metals, in waste waters and waste gases are produced in industrial production and in agriculture and are an increasing environmental hazard. In order to avoid long-term accumulation as a result of inadequately purified waste waters or waste gases, a filter body is proposed through which the media are passed and which is able to remove the pollutants almost completely. For this purpose, the filter body has a support body having a plurality of pore channels passing through it. Chemically and/or biologically active substances are taken up by the walls of the pore channels, which substances have at least part of their surface exposed. When iron dust is used as chemically active substance, the filter body is particularly highly suitable for separation of heavy metals present in waste waters or waste gases. <IMAGE>
Patent DE-4001086-A1 (DE)
Title: Medical treatment catheter widening constricted vessels - has two expandable balloons spaced in axial direction with heat conductive piece between them
Inventor: WEIKL ANDREAS DR MED
IPC: A61B18/28
Filed: 1990-01-17
Abstract: The catheter removes or widens construcconstrictions in vessels conveying body fluids. Two separated balloons pretreat the time of the constriction such that a sufficient denaturisation follows that the subsequent local chemical, enzymatic, angiotropic or other treatment achieves release and removal of the stenosis or calcification. . A heat conductive piece (22) is mounted in the catheter (1) between the balloons (14,15). An optical fibre (23) transmits external laser light to irradiate the conductive piece (22), the latter, or at least its inner surface (24) being of laser light absorbing material. The latter, or at least the outer surface (25) of the heating body (22), is resistant to the treatment medium or at least for a foreseen treatment time. USE - Clearing fatty or calcified stenosis in artery.
Patent DE-4003284-A1 (DE)
Title: Wash-basin mounted on top of W.C. cistern - has outlet connected to W.C. cistern to use washing water for flushing
Inventor: AMBARIAN HEINRICH
IPC: E03D1/00
Filed: 1990-02-03
Abstract: The wash-basin (1) is mounted on the top of the WC cistern (3). The drain outlet (6) from the wash-basin is connected to the cistern. The wash-basin is filled through a pipe (2) which is connected to the ball cock (10) of the cistern. When the ball cock is shut off as the cistern is filled, the water supply to the wash-basin is also shut off. ADVANTAGE - This arrangement not only reduces the space required for a wash-basin in a WC bus also saves water by using the wash-basin water to flush the WC.
Patent DE-4005142-A1 (DE)
Title: Connection device for coaxial cable inner conductor - has rotatable block for wrapping inner conductor around central contact pin
Inventor: SCHELLENS REINHARD DIPL ING
IPC: H01R9/05
Filed: 1990-02-17
Abstract: The connector has a housing (1) supporting a rotatable block (7) fitted to a central contact pin (29). The rotatable block has a reception channel (43) for the coaxial cable inner conductor (13), perpendicular to its rotational axis. When the rotatable block (7) is rotated, the inner conductor (13) is wrapped around the contact pin (29) to form a secure electrical connection between them. Pref., the reception cahnnel (43) is open to one end face (40) of the rotatable block (7) and communicates with a further slot (57) at right angles to it, leading to the contact pin (29). ADVANTAGE - Reliable contact between inner conductor and contact pin.
Patent DE-4019273-A1 (DE)
Title: Drive drum for belt drive - consists of cylindrical basic part, drive motor with shaft, and shoulder and other shoulder for fixture
Inventor: ALBRECHT ECKART
IPC: F16D1/06
Filed: 1990-06-16
Abstract: The drive-drum for a belt-drive consists of a cylindrical basic part (7) the outside of which supports the belt (4), and a hole (14) in which takes a motor shaft (8) belonging to a drive motor (9).  The end of the basic part (7) facing the motor has a shoulder (23) for axially resting on a  counter-shoulder (24) on the motor shaft (8). The end of the basic part facing away from the motor (9) has a container (20) for a fixture (17).  The inner end of the container (20) has a contact surface (25).  The fixture (17) has a central thread (17a) for screwing into the end (11) of the motor shaft. USE/ADVANTAGE - The drive drum is accurately and permanently fixed to the motor shaft.
Patent DE-4028413-A1 (DE)
Title: NC data digitising machine - moves sensor in 3 dimensions to obtain values from surface of prototype model
Inventor: HOPPE ULRICH
IPC: G05B19/42
Filed: 1990-09-07
Abstract: A prototype model of a component is fixed to the table (2) of the coordinate measuring machine.  The machine has a vertical stand (4) that supports a cross slide (6) on a carriage that can be moved in a vertical direction.  The assembly is also supported on a horizontal cross slide (3). Motors (5,11) allow a sensing head (12) to be moved in an Vertical motion to allow the sensing head to follow the contours is provided by a third motor (8).  Sensor outputs are provided in digital form and are available for NC machining. ADVANTAGE - Light construction not requiring base structure.
Patent DE-4028466-A1 (DE)
Title: Catheter with light-conductor - accommodates conductor in auxiliary passage or alternatively extruded into it
Inventor: GERCKE HANS-HERMANN
IPC: A61B90/30
Filed: 1990-09-07
Abstract: The catheter incorporates a light-conductor in an auxiliary passage or extruded into it. It can be of the balloon type, filled with photopolymerisable plastic materials, typically polyester or PMMA. ADVANTAGE - Allows direct examination of the organ in which it is inserted. (5pp Dwg.No.1/3)
Patent DE-4035334-A1 (DE)
Title: Loading wagon for taking up material - has ever controls ensuring effective operation without blockages and cutting unit
Inventor: BALDINGER FRIEDRICH ING
IPC: A01D90/04
Filed: 1990-11-07
Abstract: In a loading wagon for taking up material, comminuting and conveying it, the conveyor (1) has cams (2) projecting into a conveying duct (3), into which the knives (2, 28) of a cutter unit (6) project. The knives are variably installed on a cutter frame (7) and on a cutter bar (27) about a tilting axis, so that they are connected with the loading-wagon frame (17) via levers (9, 31), one of which is articulated with a hydraulic cylinder (20) attached on a swivel pin (19) of the tilt axis (18). ADVANTAGE - Ensures effective operation of the cutting element without blockages.
Patent DE-4038913-A1 (DE)
Title: New alkoxylated polyether-di:amine cpd. - obtd. by amination of polyglycol and reacting with alkylene oxide, used in fuel for Otto engine
Inventor: OPPENLAENDER KNUT DR
IPC: C10L1/22
Filed: 1990-12-06
Abstract: Alkoxylated polyetherdiamines of formula (I) are new. R, R1 = H, Me or Et; e, m, n = 0 or 1; x = 10-50. - Fuels for Otto engines contg. (I), esp. 50-5000 ppm of (I) where R1 = H or Me, are claimed. - Pref. R, R1 = H or Me. (I) are prepd. by hydrogenative amination of a polyglycol of formula CH2OH-CHR(OCH2CHR)x-OH, followed by alkoxylation with 1-5 mols of ethylene oxide, propylene oxide or butylene oxide.
Patent DE-4041998-A1 (DE)
Title: Output transformer loss compensating circuit - has load dependent output voltage attenuated to low value via damper and attenuation resistors
Inventor: MUECKE HORST
IPC: H03F3/187
Filed: 1990-12-27
Abstract: The transformed losses in an LF power amplifier are caused by core and coil resistance losses of the primary and secondary side of an output transformer (4) with a high output voltage. The load dependent output voltage at the output terminals (5,6) is attenuated to a low value via an earth-free, solid, symmetrical attenuation member (7) and damping resistors. The output voltage is supplied at correct phase to an inverting negative feedback input (2) via an auxiliary transformer (8) for galvanic separation from the amplifier circuit, consisting of an amplifier input (1), inverting negative feedback input, power amplifier (3), coupling capacitor (10), and a variable, assymmetrical attenuation member (9). USE/ADVANTAGE - For supply of several loudspeakers, with loss compensation in the output transformer.
Patent DE-4101260-A1 (DE)
Inventor: NITSCHKE-KOWSKY PETRA DR RER N
IPC: F23D14/60
Filed: 1991-01-17
Abstract: The actuator for the two-stage power regulation of gas power burners is formed by a mixer which is connected upstream of the burner and contains a chamber, into which an air supply and a fuel gas supply open and from which mixing holes of a chamber wall, which is designed as a perforated mixer, lead to the mixture outlet of the mixer. The chamber contains a throttle member which is displaceable in relation to the perforated chamber wall and can be displaced from a full-load position which exposes the mixing holes of the perforated chamber wall into a part-load position, in which the mixing holes of the perforated chamber wall are partially covered by throttle member except for a predetermined smaller passage cross-section which is defined by throttle openings of the throttle member. In the part-load position of the throttle member, a shut-off member, which is displaceable together with the throttle member, closes an additional gas quantity outlet of a gas nozzle forming the opening of the gas supply into the chamber. <IMAGE>