baber/WOPTO huggingface dataset:
Patent DE-3926586-A1 (DE)
Title: Cleaning waste water from glass industry - using type I or II anion exchangers to remove arsenic and antimony fluoride complex ions
Inventor: HAECKER KARL
IPC: B01J41/05
Filed: 1989-08-11
Abstract: Rinsing water from the glass industry which contains H2SO4, HF, As and/or Sb as well as possibly Pb is conducted through an anion exchanger of type I or II where the As- and Sb-fluoride complex ions are removed in a first stage followed by a second treatment with Ca(OH)2 to ppte. out arsenates and antimonates. Pref. the first treatment is carried out at a water pH of 0-2. The exchange is a macro-porous anion exchange contg. chloride or hydroxyl ions. USE/ADVANTAGE - Cleaning the waste water from glass melting, mechanical grinding and acid polishing. The complex ions are removed before the H2SO4.
Patent DE-3931615-A1 (DE)
Title: 5-Tetra:hydro:phthalimido-cinnamic acid derivs.
Inventor: RUEB LOTHAR DR
IPC: A01N37/46
Filed: 1989-09-22
Abstract: 5-(3,4,5,6-Tetrahydrophthalimido)cinnamic acid derivs.  of formula (I) are new: R1 = H or F; R2 = halogen; R3 = H, halogen or 1-4C alkyl; R4 = H, 1-6C alkyl (opt. mono- or disubstd. by 1-4C alkoxy or 1-4C alkylthio), 3-7C cycloalkyl, 3-6C alkenyl, 3-6C alkynyl or benzyl; R = 1-4C alkyl; n = 1 or 2.
Patent DE-3934690-A1 (DE)
Inventor: NAKAGAWA ASAHARU
IPC: H01B1/24
Filed: 1989-10-18
Abstract: A conductive elastic body comprises a body formed of an elastic material provided with conductive particles which form a layer on the surface of the body.
Patent DE-3936752-A1 (DE)
Title: Conduit for waste water incorporating cleaning aperture
Inventor: KESSEL BERNHARD
IPC: E03F5/04
Filed: 1989-11-04
Abstract: The conduit has a base body portion (G), within which are formed flow passages, a cleaning aperture (R), a flow swirl prevention baffle. A shaft formed externally of the body surrounds the outer face of the cleaning aperture. In the upper part of the base body, adjacent to the cleaning aperture, is formed an intermediate portion (Z) in the shape of a neck. This includes a seat formation (9) for a body (K) selectable from a set of differently-sized bodies. The external shaft passes through an enlarged portion (11) of the intermediate body.
Patent DE-3937171-A1 (DE)
Inventor: EVERS MICHEL DR
IPC: C07D405/12
Filed: 1989-11-08
Abstract: The present invention relates to novel picolylselenobenzamides of aminopyridines, anilines and picolylamines of the general formula I 
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 their salts, processes for their preparation and pharmaceutical compositions containing them.
Patent DE-3938913-A1 (DE)
Title: Double-action chuck operated by hand and power assisted - has plunger and power mechanism with tensioning screw fitting in adjusting screw
Inventor: FABER KURT
IPC: F16H25/18
Filed: 1989-11-24
Abstract: The double action chuck can be turned by hand and also is power assisted. It has a plunger (14) with a power mechanism (6-12), and a tensioning screw (2) with a nut at the top which can be turned inside a housing (1). The tensioning screw (2) screws into an adjusting screw (5), and this by a second thread (5') is axially movable in the housing (1). The tensioner (2) and the adjuster (5) are connected through a friction surface (6,7), and between them and the inner cone surface (20) of the plunger (14) the power mechanism (6-12) is movable axially and radially to the centre line (2). USE/ADVANTAGE - Great strength is transmitted simply and with few moving parts.
Patent DE-3941884-A1 (DE)
Title: Concrete water drainage pipe - consists of lengths joined end-to-end with sealing ring between end faces
Inventor: MUECHER HORST ADOLF
IPC: E03F3/04
Filed: 1989-12-19
Abstract: The concrete water drainage pipe is constructed from lengths of pipe joined end-to-end with a sealing ring fitted between the joint faces. Each length of pipe (1)has a guide ring (4) projecting from one end and firmly fixed to the concrete. This guide ring (4) guides the elastomeric selaing ring (6) and the next length (1') of concrete pipe into position as the two lengths (1,1') are placed end to end. The axial length of the sealing ring (6) is such that it extends to the portion of reduced dia. of the adjoining length of pipe (1'). The guide ring (4) extends beyond the end of the sealing ring (6). USE - Concrete water drainage pipes.
Patent DE-4000465-A1 (DE)
Inventor: EILER WALTER DR
IPC: G06K15/02
Filed: 1990-01-05
Abstract: The central control unit (1) of a control device for a thermal printing head is relieved of control tasks relating to the thermal printing head (6). To this end, the control unit for the heating elements (R) of the thermal printing head (6) consists of two logically decoupled sub-units, namely a print data shift unit (3) and an activating unit (4), each of which is connected to the central control unit (1).
Patent DE-4000657-A1 (DE)
Title: Guide wheel for centrifugal pump - incorporates convex section on concave blade
Inventor: KRIEGER PAUL
IPC: F04D29/44
Filed: 1990-01-11
Abstract: The guide wheel is for centrifugal pumps of radial and semi-axial design. The concavely formed blade side (5) of the guide blade (2) proceeding outwardly from the edge (3) is provided with a convexly shaped contour (P). The convex contour can amount to up to one third of the guide blade length. USE/ADVANTAGE - Guide wheel for radial pump in which stresses occurring during part-load operation are avoided.
Patent DE-4001007-A1 (DE)
Title: Ring spinning frame - has roving creel cleaning equipment installed in service robot and mechanism for disposal of flay waste
Inventor: IGEL WOLFGANG
IPC: D01H9/10
Filed: 1990-01-16
Abstract: On ringspinning frames with a service robot for the roving supply, it is arranged for the robot to remove dust and fly, and accumulate it, so that at the end of the frame, the debris is unloaded by means of variation of air pressure into the fly waste chute of the spinning section. The cleaning equipment is installed into the service robot for rovings. When this has traversed the frame, and is alongside the hatch on the ring frame, a compressed air cylinder which has control valves, and cylinder with valve control, firstly extends the fly waste accumulator as a unit, so that the projection fits into the recess on the hatch. The second cylinder lifts the lug of the sliding cover, and simultaneously the hatch cover is lifted along its slide. The control valves have connections to the electronic circuit to synchronise the operations. The cover to the airflow is closed, and the fly accumulated on the filter is passed into the frame waste chute and held on the filter, and then disposed of in the usual manner by the ring frame installation.
Patent DE-4002571-A1 (DE)
Title: Blind bottom rail automatic lock - has pivoting catch locked by body lowered by separate rope
IPC: E06B9/325
Filed: 1990-01-30
Abstract: The mechanism automatically locks the bottom rail of a slatted blind in the lowermost position, there being guide trunnions on the rail working in lateral guide rails open to one side. At the bottom end of each guide rail (18) and alongside the path followed by the trunnion (20) is a pivoting locking catch (44) with an arm (50) extending upwards. This has a claw (52) bent over and swinging under gravity into the position locking the trunnion, by which it can be deflected into the free position when moving upwards or downwards. A locking body (46) slides in the length direction of the rail, and is lowered by a separate rope (62) from the blind hoisting shaft (12), following the bottom rail. This locks the catch in the engaged position after the claw has swung above the trunnion. ADVANTAGE - Simple construction and requires no special adjustment.
Patent DE-4007805-A1 (DE)
Title: Waste water cleaning appts. for removing (in)organic salts - by passing waste water through electrically conducting concentric pipes then passing DC between them
Inventor: BAEUMER HERBERT
IPC: C02F1/467
Filed: 1990-03-12
Abstract: Materials dissolved in wastewater is removed by electrolysis. Wastewater flows through at least two concentric pipes which conduct electricity, and direct electric current is passed between them. ADVANTAGE - Inorganic salts from industrial wastewater are removed. Appts. also breaks down other organic wastes which are normally treated using bacteria.
Patent DE-4009966-A1 (DE)
Title: Watch having LED on flange of minute hand - has LED connected to DC battery via coaxial conductive shafts of minute and seconds wheels with resilient contacts
Inventor: FU WANG CHIN
IPC: G04C17/02
Filed: 1990-03-28
Abstract: A conductive spring (41) has at one end a loop (412) connected to the central axis (32) of the minute wheel (3). The minute hand (31) has an annular flange (311) connected by a Cu strip (10) to the LED (101), whose other terminal is wired (91) through a hole (92) to the seconds hand. The spring (41) and a clip (7) bearing upon the rounded end (513) of the axis (51) of the seconds wheel are returned to respective poles (43,81) of a DC supply. ADVANTAGE - Time can be read clearly in dark when no light is available for reflection by fluorescent material.
Patent DE-4010467-A1 (DE)
Title: Screen wiper blade with internal spoiler - makes use of injection moulding to provide stiffening channel
Inventor: THEISSIG WERNER
IPC: B60S1/38
Filed: 1990-03-31
Abstract: The vehicle windscreen wiper has a wiper blade with a spoiler. This is designed to press the wiper aerodynamically against the windscreen when the vehicle is moving at high  speed. The wiper blade with the spoiler (1) is made as a single piece component by injecion moulding using a gas inner pressure method to form a hollow channel (5) which runs along the spoiler and serves to stiffen it. USE/ADVANTAGE - Screen wiper which despite being light in weight has adequate rigidity and give optimal aerodynamic performance.
Patent DE-4012758-A1 (DE)
Title: Supporting device for drilling or blasting operations in mining - consists of working platform suspended from rail with pivoted arms to brace into arched supports
IPC: E21D11/40
Filed: 1990-04-21
Abstract: The supporting device may be used during drilling or blasting operations in mining or tunnel construction. It consists of a working platform together with a height adjustable arm fixed to a face cutting machine. It is suspended from a rail fixed to the underside of the roof, and fixed to either side of its basic frame are supporting arms (6) pivoted on the frame (8) at the upper end with the lower free ends (9) braced into the forepoling position on the fixed arch supports (7). USE/ADVANTAGE - Optimum strength in support avoiding stress on the overhead rail system. Supporting device used for drilling or blasting operations in mining or tunnel construction.
Patent DE-4013255-A1 (DE)
Title: Colour video signal processing circuit - has four quadrant multipliers coupled to difference amplifier with current reflection circuits
Inventor: HAAS DIETER DIPL ING
IPC: H04N9/68
Filed: 1990-04-26
Abstract: The circuit uses a 4 quadrant multiplier (19) supplied with the colour video signal and a control signal for amplification adjustment. A second 4 quadrant multiplier (20) receives a chrominance signal extracted from the video signal and a second control signal. The outputs of both multipliers (19,20) are fed to a difference amplifier (3) with current reflection circuits (7...11,12...16) in the collector leads coupled to the outputs of the multipliers (19,20). A second difference amplifier (17) receives the outputs of the current reflection circuits (7...11,12...16) and provides the processed colour video signal at its output. ADVANTAGE - Allows phase linear adjustment of chrominance amplitude.
Patent DE-4018294-A1 (DE)
Title: Adjusting height of seat belt fitting - involves use of statistically determined ideal curve
IPC: B60R22/20
Filed: 1990-06-07
Abstract: Height adjustable reversing clasp for the safety belt of a motor vehicle having a guide rail (3) for a sledge-like part (4) which carries the clasp (5) for the belt (6). The position of the part (4) is adjusted by means of a control cable (8) and a guide curve (12) has a curve characteristic which corresponds to the desired height adjustment in relation to the displacement path of the seat with a follower member connected to the end of the cable. USE/ADVANTAGE - Height adjustment system is for a vehicle safety belt and uses a statistically determined ideal guide curve.
Patent DE-4024146-A1 (DE)
Title: Prodn. of HF filter - by applying paste to both sides of substrate, producing resonator structure, drying paste and annealing
Inventor: LIEBEL WERNER DIPL ING
IPC: H01L27/01
Filed: 1990-07-30
Abstract: An HF-filter (I) comprises a conducting path structure (3) with terminal contacts on a substrate (1). Prodn. of (I) is also claimed comprising applying a thick paste (2) to both sides (5,6) of the substrate (1) using a sieve, producing a resonator structure (3), connections (12) terminal contact spots (11) and through contacts (10), drying the paste and annealing. The terminal contact spots have terminal contacts. ADVANTAGE - The process is simple and inexpensive.
Patent DE-4025781-A1 (DE)
Title: Selected copolymer hydrogenation - using butadiene!-isoprene!-acrylonitrile! copolymers in organic solvent using metal (cpd.) catalyst under specified conditions
Inventor: BUDING HARTMUTH DIPL CHEM DR
IPC: C08F8/04
Filed: 1990-08-15
Abstract: In selective hydrogenation of butadiene-isoprene-acrylonitrile copolymers with a content of copolymerised isoprene of 3.5-22 wt.% and copolymerised acrylonitrile of 18-50 wt.%, where the acrylonitrile may be wholly or partially replaced by an equimolar amt. of methacrylonitrile, it takes place in an organic solvent with water under 1-350 bar water pressure and 20-250 deg.C in the presence of 2-300 ppm metal or metal cpd. as hydrogenation catalyst, to give a hydrogenation grade of at least 85%, based on the C=C double bonds of the copolymer.
Patent DE-4026070-A1 (DE)
Title: Active noise reduction system for vehicle passenger - uses weighing of microphone signals to simulate virtual source at position of passengers head
Inventor: SCHAAF KLAUS DIPL PHYS DR
IPC: G10K11/178
Filed: 1990-08-17
Abstract: The active noise reduction system uses microphones (1,2) for detecting the noise level at points within the vehicle which are spaced from the passenger's head. The microphones (1,2) are coupled to variable amplifiers (3,4,8,11) supplying weighted output signals to a microprocessor (9) used to generate a similar frequency counter phase noise signal for reducing the effective noise level at the position of the passenger's head. The weighting provided by the variable amplifiers (3,4,8,11) allows the received microphone signals to be adjusted to simulate a virtual microphone source at the position of the passenger's head. ADVANTAGE - Accurate reduction of noise level at position of passenger's head.
Patent DE-4033811-A1 (DE)
Title: Vacuum switch with inner and outer connecting conductors - has coil built into housing and surrounded immediately by fixed contact over which current is distributed
Inventor: REICHL ERWIN
IPC: H01H33/664
Filed: 1990-10-24
Abstract: The windings of the coil (1) producing an axial magnetic field lie in one plane. The connections (9,10) from it to a fixed contact (6) and a connection site (11) exert no negative influence on the field in the switching path. The inner conductor (9) forces the current in a mainly azimuthal direction towards the contact bolt (4a) and the surface of the fixed contact (6). Over this the lines of magnetic flux are distributed with complete uniformity. ADVANTAGE - The axial magnetic field in the gap between the open contacts is entirely unaffected by the connecting conductors.
Patent DE-4035370-A1 (DE)
Inventor: HILL HEIDEBRECHT DIPL ING
IPC: G01C21/28
Filed: 1990-11-07
Abstract: Described is a method of determining the position of a land vehicle, the method calling for the distance travelled and changes in heading to be derived for pulses generated by sensors (3, 4) each time the wheels on one axle rotate through a given angle. The changes in heading derived from the wheel-generated pulses are compared with reference heading changes obtained independently of the wheel-generated pulses. Correction values are determined from the result of this comparison procedure. The reference heading changes are preferably obtained from a magnetic sensor (i.e. a compass) (8).
Patent DE-4035500-A1 (DE)
Inventor: PLUNTKE CHRISTIAN DR RER NAT
IPC: H01L29/10
Filed: 1990-11-08
Abstract: Proposed is an electronic switch, in particular a switch in the form of a transistor, with, within a semiconductor material, at least one boundary layer disposed between regions of different doping density. The switch is characterized in that the boundary layer includes at least one voltage-limiting zone (Z) with a radius of curvature (R) which is less than or, at the most, equal to the diffusion depth (XJB) of the diffusion layer.
Patent DE-4035944-A1 (DE)
Title: Arrangement for jets in smoke cleaning plant - increasing reaction vol with gases entering elbow joint with jet on longitudinal axis
IPC: B01D53/74
Filed: 1990-11-09
Abstract: Gases collected in a pipe are sprayed with fluids to neutralise waste prods. and remove particles. Gases are passed through an elbow joint in which are installed jet(s), on or near to the longitudinal axis; only one jet is arrranged pointing directly along the longitudinal axis. Pref. arrangement comprises smoke gases (1) entering the elbow pipe (2) in which is installed one jet (9) directed along the longutudinal axis of the concentric reaction vessel (3). Additional jets (6,7) are at the junction of the elbow pipe and reactor vessel. USE/ADVANTAGE - Limits the size of the dry-wet zone in which corrosion tends to occur.
Patent DE-4039972-A1 (DE)
Title: Detecting surface deformations by electronic speckle interferometry - coping with two or more deformation directions simultaneously using single light source and symmetrical detection beams
Inventor: MEYER BIRGIT DIPL PHYS DR
IPC: G01B9/025
Filed: 1990-12-14
Abstract: The method of detecting the surface deformations of an object in at least two deformation directions involves using electronic speckle interferometry. Interference patterns are generated, acquired and evaluated by computer for each deformation component or direction using only one light source (11) to illuminate the object (10). - A coherent light beam (19) is directed perpendicularly onto the object. The interference pattern of a deformation component is formed by superimposing two symmetrical scattered or detection beams (13,14). - (Dwg.1/2)
Patent DE-4102381-A1 (DE)
Title: Road traffic tail-back warning installation - comprises independent sensors placed along road to be monitored and communicating by radio with warning signs
Inventor: HUEBEL ALBERT
IPC: G08G1/09
Filed: 1991-01-28
Abstract: Along the road tailback sensors (2) are regularly distributed, each sensor monitoring a specific road section. At easily observed points along the road warning signs are provided. Specific warning signs (9) and sensors (2) are fixed to one another. The monitored road is a multi-lane motorway (1), the two sides of which are sepd. by a central reservation (4). The sensors are fitted on the central reservation, and the warning signs are erected along the traffic lanes in both directions. Each sensor has a radio transmitter, and each warning signal has a radio receiver. The sensors have masts with a transmitter aerial at the top. In the upper part of each mast a solar panel supplies energy supply to the sensor. In the mast's lower part an accumulator stores energy from the solar panel, a control electronic unit and the radio transmitter.
Patent DE-4104213-A1 (DE)
Title: Flexible wound door - is raised by winding on to roller with counter balance weights
Inventor: LAMSFUSS NORBERT
IPC: E06B9/13
Filed: 1991-02-12
Abstract: The door, which is made of flexible material, is opened by winding the door onto a roller. The weight of the door is counterbalanced by a weight or weights (9). Each weight is fastened by a belt (8) to a pulley which is mounted on the shaft which carries the roller on to which the door is wound. The counter-balance weight slides inside the hollow door post (12) and is brought to rest by buffers (19). These buffers are so arranged that the balance weight strikes their upper surfaces shortly before the door reaches its highest position and before the brake is applied to the roller on which the door is wound. USE - Roller doors made of flexible material.
Patent DE-4107944-A1 (DE)
Title: Insulation part for ohmic potential divider in HV system - contains plastics material insulating body contg. conducting material and carrying electrodes forming divider and measurement resistors
Inventor: REICHL ERWIN DIPL ING
IPC: G01R1/20
Filed: 1991-03-13
Abstract: An insulation part of an ohmic potential divider has a plastics insulation body with a conducting fill material. The body has upper and lower attachment parts connected to an electrode and to part of the main system. The lower part is connected to a second electrode and has a third formed on it. An h.v. divider resistor (R1) is formed between the first and second electrodes and the measurement resistor (R2) between the second and third electrodes. The arrangement and design of the parts (2-5) in the insulator part form a high voltage divider resistance which is defined essentially exclusively by the dimensions of the first and second electrodes (4, 5) and the distance (A) between them. ADVANTAGE - Insulator part/potential divider is improved to produce a relatively large leakage current uniformly distributed over its entire insulating material cross-section for large divider resistance.
Patent DE-4108689-A1 (DE)
Title: Glass or ceramic plate scoring stencil -  for breaking rectangular plate corners to various shapes
Inventor: GURK RUDI
IPC: C03B33/12
Filed: 1991-03-16
Abstract: A scoring stencil, for breaking off the corners of rectangular glass or ceramic plates, has two mutually orthogonal coplanar seating arms (2), which are integral or fixed together, and a scoring arm (5) which faces the right angle (3) of the stencil (1) and which can be displaced on the seating arms (2) and fixed in any desired angular position. ADVANTAGE - Stencil prevents slippage even when high pressure is applied to the cutting tool and allows stepless adjustment to the desired corner shape.
Patent DE-4109648-A1 (DE)
Title: Hollows prods. from thermoplastic sheet - obtd. by treating semi-finished polyether-sulphone, polyimide or polycarbonate sheet with vapour of liq. with b.pt. near polymer glass temp.
Inventor: BUCHERT HERMANN DR
IPC: B29C35/04
Filed: 1991-03-23
Abstract: Hollow prods. (I) are obtd. from semi-finished thermoplastic sheet (II); (II) is polyether-sulphone, polyimide or polycarbonate and the semi-finished sheet is treated with the vapour of a liq. with b.pt. close to the glass temp. (TG) of (II). Pref. liq. is a fluorinated hydrocarbon. The process is carried out in a mould which is not tightly closed. USE/ADVANTAGE - Simple process for the prodn. of (I) (e.g., air piping for passenger aircraft). The process is less expensive than blow moulding or twin-sheet thermoforming processes, and is used esp. for small-medium prodn. runs. In an example, a coloured sheet of polyether-sulphone (150 x 150 x 3 mm), was immersed in Fluorinert (RTM) vapour, and rapidly heated to 215 deg.C by the vapour condensing on the sheet; this caused the sheet to delaminate in the middle, producing a cushion-shaped hollow moulding with a rough internal surface and unchanged external structure.