baber/WOPTO huggingface dataset:
Patent DE-3927338-A1 (DE)
Title: TV image fading by image signal coding - converts image signals into digital image point data, stored in lines at addresses
Inventor: HALLER ROBERT DIPL ING
IPC: H04N7/169
Filed: 1989-08-18
Abstract: The TV signal image signals are so coded that no original image structures are recognisable, on screen display without decoding. The image signals are converted into digital image point data, stored in lines at addresses in a first address  sequence. The data are rad out in lines in a second address sequence, differing from the first one. The first and/or second sequence is changed from line to line. The read-out data are converted into analog, coded image signals with a change of the address sequences for the storage and read out. Pref. the image point data for several adjacent image points are stored at an address. USE/ADVANTAGE - For safe coding, with access prevention to unauthorised persons.
Patent DE-3927813-A1 (DE)
Title: Door snap closure e.g. for built-in cupboard - requires two hands to release catch ending at short distance from outer face of closed door
Inventor: MESSMER HEINZ
IPC: E05B65/00
Filed: 1989-08-23
Abstract: The door (10) is retained in its closed position by a catch (32) which projects from the front edge (50) of the sidewall (24) and is doubled back (55) at an acute angle (alpha) greater than 15 deg. to co-operate with an L-shaped profile (62) on the edge of the door. Before the door can be opened (66), the straight limb (44) of the catch (32) must be deflected (63) and held clear with the other hand. USE/ADVANTAGE - Also for doors of refrigerators and storage spaces, etc.  Childproof door can be opened quite easily by application of sufficient force using both hands.
Patent DE-3932720-A1 (DE)
Title: Torque control for automatic transmission of motor vehicle - has additional range for selector control with infinitely variable gear ratio
Inventor: DACH HANSJOERG
IPC: F16H61/662
Filed: 1989-09-30
Abstract: The gear lever (11) for the automatic transmission has the normal settings, park, drive, neutral, reverse etc. as well as an additional range (14) in which the gear ratio is fixed on a sliding scale.  This enables the driver to have better control on downhill travel and when travelling along strongly curved roads where constant gear changes become uncomfortable. The same control operates over all the ranges.  The infinitely variable range is hydraulic or electric.  The former operates between control valves while the latter operates with a potentiometer.  The control can involve infinitely variable transmission elements and/or transmission brakes. ADVANTAGE - Improved control for automatic transmission vehicle; simple to operate.
Patent DE-3943328-A1 (DE)
Inventor: YOSHIDA KAZUHITO
IPC: B29C70/62
Filed: 1989-12-29
Abstract: A doughnut shaped permanent magnet is formed by injecting a plastics magnet material into a doughnut-shaped cavity (2) of a mould through an annular gate (6) disposed at the inside of a mould plate (7). The annular gate (6) is defined by a runner (8) and a core pin (5) and it can alternatively be located on the outer surface of the mould. <IMAGE>
Patent DE-4003465-A1 (DE)
Title: Pressure relief valve for hydraulic pip-prop - has gas spring to hold valve piston on its seat
Inventor: MATEJA ERNST DIPL ING
IPC: E21D15/51
Filed: 1990-02-06
Abstract: The hydraulic pit prop is fitted with a valve to relieve excessive hydraulic pressure in the event of a rock slip imposing an excessive load on the pit prop. The working length of the pit prop is thus reduced with a simultaneous reduction in load so preventing damage to the pit prop. The valve has a cylindrical body (1) with an axial inlet (4) and a number of radial outlets. The body houses a piston (6), which, together with the body and the end cap (12) forms a gas spring. The upper end of the piston has a sealing ring (9) which co-operates with a valve seat formed in the body. The tip (29) of the piston (6) is conical with a concave surface which facilitates the radial outflow of the hydraulic fluid.
Patent DE-4003667-A1 (DE)
Title: Flat-bed knitter - forms rib rows in take=off construction at end of fashioned section before knitting start of next section
Inventor: SHIMA MASAHIRO
IPC: D04B15/90
Filed: 1990-02-07
Abstract: The operation of a flatbed knitter, to finish the end of a fashioned knitted section, forms a final row with an end yarn in a double stroke row of stitches in a rib knit in a 1 x 3 draw-off construction. The end yarn is passed in a zig-zag between the leading and trailing needle beds above the gap between the needle beds. The teeth of a take-off comb are lowered into the gap between the needle beds, through the yarn of the double rib knit rows, to a point below the needle bed gap. A further end yarn is fed in, for a second double stroke tubular row to be knitted to form the start of the next fashioned fabric section, and the next section is knitted.
Patent DE-4005518-A1 (DE)
Inventor: SCHNORRENBERG GERD DIPL CHEM D
IPC: C07K1/04
Filed: 1990-02-22
Abstract: Process and device for the fully automatic simultaneous synthesis of several polypeptides, in which up to 48 different polypeptides may be synthesided in an automatic pipette by the solid-phase method of synthesis. The device has individual reaction vessels for the synthesis of the individual polypeptides which are brought together to form one unit by a holding device. The simultaneous extraction of the fluids from the reaction vessels after each reaction or washing process takes place via the holding device.
Patent DE-4008187-A1 (DE)
Title: Support for pneumatic spring
Inventor: SCHNEIDER ECKHARD DR
IPC: F16F9/05
Filed: 1990-03-15
Abstract: The flexible air spring is secured over a shaped piston made from plastic moulding, fibre reinforced for strength. The piston has vertical grooves up the outside walls to reduce the rolling resistance of the material of the air spring. The grooved run from the top of the piston to taper to zero at the bottom, mounting flange. The piston has inner reinforcing ribs, with mounting holes to secure the assembly. The lightweight structure adds little to the unsprung mass of the suspension.
Patent DE-4016257-A1 (DE)
Title: Chair with covered or upholstered back - has holder sections preassembled, with prepared holes in frame
Inventor: HILLER ROLF DIPL ING
IPC: A47C7/42
Filed: 1990-05-19
Abstract: The chair (1) with a covered or upholstered back-rest (5). Holder-sections (8) go through the back-part (5) axially and are in the form of pins, bars, rods or other  protuberances. The holder-sections (8) are pre-assembled on the back-part (5). At least one holder-section (8) is pushed between the back legs or rungs or into the holder-frame (7) with its fixture end (9) outwards, into a prepared hole (10) in the holder parts. USE/ADVANTAGE - The covered or upholstered back part of the chair can be anchored without its holder parts needing holes going through from the outside.
Patent DE-4017498-A1 (DE)
Title: False twister yarn threader - has separate pre-twisting disc to advance yarn into false twisting disc triangle
Inventor: HINN WALTER
IPC: D02G1/08
Filed: 1990-05-31
Abstract: To thread a yarn through a flase twister, composed of a number of friction discs in a triangle to form a zig-zag path for the yarn, at least one pretwisting disc (1) with a separate drive is outside the disc triangle. This gives the yarn (2) an initial twist and, together with the yarn guide straps (3), advances the yarn (2) into the disc triangle. The pretwisting disc is driven by an electro-motor, or from the friction disc shaft through friction drive discs. Through the coupling between the pretwisting disc and the yarn guide straps, the yarn is initially brought into contact with the pretwisting disc to be twisted before it is caught by the guide straps. The pretwisted yarn is advanced into the friction twisting disc triangle only by the pretwisting disc. ADVANTAGE - The system prevents excessive draw tensions being applied to the yarn which could cause yarn breakages.
Patent DE-4018086-A1 (DE)
Title: Hydraulic tool for improving excavation efficiency on deep trenches - uses side wall pressure parts to reduce friction loss and improve lateral tolerances
Inventor: WAGNER GUENTER
IPC: E02F3/20
Filed: 1990-06-06
Abstract: The hydraulic and electrically controlled tool is used to improve trench excavation work. It uses a set of lateral supports and a hydraulically operated press which engages with the side walls of the excavation. A hydraulic power pack and valves are contained on the excavation rig and only power and control cables lead to the rig. By applying lateral pressure, side wall friction is controlled, thus effective plant weight is increased for soil penetration. Further, trench alignment is more accurately kept. The tool has a support frame (1) with the pressure plates (2) on either sides of it. There are hydraulic rams (3, 5) on either side urging the plates outwards and there are guide rods (4, 6) to prevent unwanted tilting and lateral movement of the plates. USE/ADVANTAGE - Hydraulic and electrically controlled trench excavation tool may be steered and keeps trench walls vertical.
Patent DE-4018757-A1 (DE)
Title: Particle solid material sorting method
Inventor: MINDERMANN KURT-HENRY DIPL ING
IPC: G01N33/38
Filed: 1990-06-12
Abstract: The method is for sorting solids in response to their electric conductivity, and comprises the steps of subjecting solids to a microwave field of predetermined power and frequency over a predetermined time interval whereby solids assume different temperatures depending upon their dielectric properties, detecting temperatures and classifying the solids in response to the detected temperatures.  The apparatus includes a microwave furnace, apparatus for conveying the solids through the furnace, apparatus for detecting the temperatures and apparatus for classifying the solids in response to the detected temperatures.
Patent DE-4027565-A1 (DE)
Title: Anti-slip hydraulic braking system for vehicle -  involves insertion of pressure responsive switching valve
Inventor: REINARTZ HANS-D
IPC: B60T13/16
Filed: 1990-08-31
Abstract: The hydraulic braking system has an arrangement to control the braking and/or drive slip in which a switching valve (28) is inserted between the master cylinder (1) and the pump (4) such that in a first position the valve keeps the brake pipe open and in a second position blocks the brake pipe (2) in the direction of the pump. The valve is switchable from the first to the second position by the master cylinder pressure. USE/ADVANTAGE - Braking system which dispenses with an electromagnetically actuated selection valve to give greater reliability.
Patent DE-4029320-A1 (DE)
Title: Synthetic resin facade-plate recessed fixing device - is covered by flush-fitting component of same material
Inventor: MOURMANS MATHEUS JOHANNES WILH
IPC: E04F13/18
Filed: 1990-09-15
Abstract: Decorative facade-cladding plates of hard synthetic resin homogeneously reinforced by cellulose fibres are secured by fixing devices recessed into them. The latter are covered by components of the same material as the plates, and which are flush with their surfaces. The plates can be 8-16 mm thick and the covering components 0.8-2mm thick, while blind rivets or screws can be used as the fixing devices. The plates and components can have a covering layer of unsatd. (meth)acrylate, polymerised by irradiation. ADVANTAGE - No distortion due to weathering. (7pp Dwg.No.4/9)
Patent DE-4030270-A1 (DE)
Title: Sound-proofing wall unit - made of recycled waste materials, providing screening effect and reducing loading of ground water
Inventor: UNTERLAENDER ROSWITHA
IPC: E01F8/02
Filed: 1990-09-25
Abstract: Soundproofing units have (a) load bearing compartments or plant trays of recycled safety fence beams; (b) waste material fillings in the form of compost as nutrient carrier in the plant trays and old tyre rubber chips acting partly as absorbing component and, when mixed with compost, as planting medium; (c) statically loaded cores provided in the steep banking and consisting of washery tailings from coal extn.); (d) a solar energy system for operating pumps for forced watering of the soundproofing wall; (e) a heated industrial or domestic waste water supply for the watering process; (f) a fleece cover, for the absorbent rubber chip layer in the compost mixt., through which young plants are planted; and (g) an additional ecological environmental effect obtained by use of heated water. ADVANTAGE - The soundproofing wall is inexpensive, employs waste materials, provides a screening effect, can be planted and produces reduced loading of ground water. (20pp Dwg.No.13/22)
Patent DE-4030900-A1 (DE)
Inventor: MUTSCHLER GERDA
IPC: C23C14/35
Filed: 1990-09-29
Abstract: The invention concerns a process and device for coating components subject to high tribological stresses, in particular components of fuel-injection systems. The invention proposes that one or more plasma-etching devices, operating by microwave electron cyclotron resonance, are incorporated in the coating installation. The components to be coated can thus be cleaned before coating by a sputter-etching process which proceeds in a very high vacuum.
Patent DE-4034607-A1 (DE)
Title: Preventing exhaust gases from entering motor vehicle's interior - automatically closing fresh air vents at low speed or when air pollution exceeds limit
Inventor: LIXFELD WOLF-DIETER
IPC: B60H3/00
Filed: 1990-10-31
Abstract: The positions of flaps (K) in, e.g. four fresh-air inlets, are controlled electrically or electronically from a centre (Z) actuating, e.g. magnetic switches or other e.m. positioning devices. A sensor (S) of road speed or e.g. CO or soot concn. in the outside air, is connected to the centre (Z). The flaps (K) may be closed at speeds below e.g. 20 km/h or when the vehicle is in low gear, a fan (G) being switched-on to maintain internal air circulation. ADVANTAGE - Air quality for driver and passengers improved esp. at low speed in dense traffic.
Patent DE-4100436-A1 (DE)
Title: Radial radiator for motor vehicle - has central radial fan and annular heat exchanger planes
Inventor: WEBER REINHARD
IPC: F04D29/58
Filed: 1991-01-09
Abstract: The radial radiator replaces the conventional rectangular structure and has a number of concentric-, parallel plates to form circular heat exchanger chambers (2) around a central fan (1). The coolant is pumped around each chamber while air is blown over both walls. Additional heat conducting walls (3) are positioned in the air spaces between the chambers. The coolant flow is from the opposite to the inside of each chamber, in opposition to the cooling airflow for max. efficiency. Different coolants can be cooled in adjacent chambers. The air intake is filtered to prevent coating of the heat exchanger surfaces. The heated air can be ducted into the inlet manifold. ADVANTAGE - Compact cooling system with large capacity accepting several coolants.
Patent DE-4102928-A1 (DE)
Title: Magnetic field measuring device - has core acting as flux divider with flux gate in auxiliary flux path
Inventor: RACZ ROBERT
IPC: G01R33/04
Filed: 1991-01-31
Abstract: The magnetic field measuring device uses a flux gate magnetometer with a magnetic core (1) would with an energising winding (8) and a measuring winding (9) associated with a flux gate (4, 8). The energising winding (8) is coupled to an energising source (10), so that an AC signal is obtained in the measuring winding (9) which is proportional to the flux variation, converted by an evaluation circuit (11) into a corresponding display value. The core (1) acts as a flux divider with the full flux fed along a measuring path (3) and part of the flux fed through the flux gate (4, 8). USE - For measuring relatively small DC magnetic fields.
Patent DE-4104509-A1 (DE)
Title: Tool for stamping paper and plastics sheet - has cutting strip clamped in gap between punch blocks having integral spacing tabs
Inventor: VALKENBURG WILLEM LODEWIJK
IPC: B23H7/02
Filed: 1991-02-14
Abstract: A tool for stamping out objects from paper and plastics sheet is made up of punch blocks machined from hard metal plate by wire electrode erosion. Around the periphery of the punch blocks are spacing tabs (7) which are produced integral with the punch block and have a space (8) into which a cutting strip can be clamped. The punch blocks are mounted against a backplate and are exactly spaced by the interleaving spacing tabs on adjacent blocks. USE/ADVANTAGE - Rapid, accurate method of tool mfr. High reproducibility of stampings. High quality of cut. Long tool life. Minimal material wastage.
Patent DE-4107597-A1 (DE)
Title: Self-clocked charge pump for vehicle battery charging - uses switched transistors controlling charging and discharging of charges storage capacitors connected in series
Inventor: BERNECKER OTTO DR
IPC: H02M3/07
Filed: 1991-03-09
Abstract: The charge pump uses a number of charge storage capacitors (C1,C2,C3) connected in series, selectively coupled to the DC voltage source (S) via respective transistor switches (T1...T6). The charge held by each storage capacitor (C1,C2,C3) is compared during charging with a reference value, allowing the charging to be interrupted upon reaching a threshold value. The storage capacitors (C1,C2,C3) are charged in succession until a second threshold value is reached, the obtained charge transferred to the parallel battery (V) in parallel with the charging of the individual storage capacitors (C1,C2,C3). ADVANTAGE - Allows battery recharging from DC source with varying impedance e.g. vehicle dynamo.
Patent DE-4114367-A1 (DE)
Title: Pyrometer for contactless temp. measurement, e.g. of oscillating wire - contains cylinder lens focussing thermal radiation onto receiver
Inventor: TERTILT ALBERT DIPL ING
IPC: G01J5/08
Filed: 1991-05-02
Abstract: The pyrometer contains a receiver (3) which picks up the thermal radiation from the object (6) via a thermal radiation sensitive cylinder lens (2). The cylinder longitudinal axis is transverse to the measurement object's longitudinal axis and hence codirectional with the object's oscillatory motion. The lens focusses the thermal radiation onto a strip which covers the receiver centrally when the object is in a neutral position and which moves over the receiver as the object oscillates. USE/ADVANTAGE - E.g. for rapidly and accurately measuring temp.  of wire and extrusion which is moving and oscillating laterally.
Patent DE-4115015-A1 (DE)
Inventor: BROCK THOMAS DIPL CHEM DR
IPC: C09D5/10
Filed: 1991-05-08
Abstract: The invention relates to physically drying, water-borne coating compositions. In addition to water, metallic pigments, optionally further pigments, neutralisers and conventional additives, and small amounts of solvent, they contain a binder mixture comprising   A) from 50 to 90% by weight of polyurethanes containing carbonate groups and having a number average molecular weight of from 70000 to 500000, based on products of the reaction of polyisocyanates with polyhydroxyl compounds, with a content of polyhydroxypolycarbonates, and B) from 10 to 50% by weight of polyurethanes having a number average molecular weight of from 20000 to 100000 and containing carboxylate groups.   They are particularly suitable for automotive refinishing of metallic finishes.
Patent DE-4123043-A1 (DE)
Title: Fluid dispensing system throughput display e.g. for oil, hydraulic fluid - has throughput detectors with transmitters and independently positioned mobile display device with receiver
Inventor: DOHMANN INGO
IPC: G01F15/06
Filed: 1991-07-12
Abstract: The display device contains a throughput detector (6) for each connection point and a display device (10) connected to the detector for transferring the measured quantity data. The mobile display device is connected to the detector without wires. The detector contains or is connected to a transmitter (8) and the display contains a receiver. For two or more detectors, the transmitters send differently encoded signals which the receiver can identify. USE/ADVANTAGE - For system with centrally stored fluids, e.g. lubricant and hydraulic fluid, primarily for motor vehicle maintenance. Display position is independent of that of detectors.
Patent DE-4123414-A1 (DE)
Inventor: OPPERMANN KLAUS-GUENTER DIPL P
IPC: H01L29/78
Filed: 1991-07-15
Abstract: The invention relates to a power semiconductor with four zones in which an emitter zone (A) has at least one emitter region (4) and at least a first part (5) of the extractor structure (AS) and in which the first part of the extractor structure is electrically connected to a main electrode (7) via a second part (6) of the extractor structure (AS). The invention prevents the ignition of a parasitic thyristor, for instance with insulated-gate bipolar transistor (IGBT) and gives a pentode-like output characteristics in thyristors.
Patent DE-4128963-A1 (DE)
Title: Fluorine-resistant alumino-silicate refractory material - contains lime component for protective layer formation, used for e.g. lining chambers, electrolytic aluminium@ prodn. vessel, etc.
Inventor: BECKER WOLFGANG DIPL ING
IPC: C25C3/08
Filed: 1991-08-29
Abstract: Fluorine-resistant refractory material, consists of (i) a basic matrix of 20-97 wt. % aluminosilicate raw material; (ii) a binder matrix of 2.5-65 wt. % clay and opt. finely ground ceramic raw materials of aluminosilicate type; and (iii) 0.5-15 wt. % lime component. The material pref. contains 13-98 (pref. more than 70) % Al203. The basic matrix pref. has a particle size of 0.2-4mm and may comprise fire=clay, bauxite, corundum, alumina, mullite or andalusite. The binder matrix pref. has a particle size of less than 0.2mm. The lime component pref. has a particle size of less than 2mm and may be burnt lime, slaked lime, calcium carbonate etc. USE/ADVANTAGE - The material is used (a) for lining chambers in which fluorine can occur (e.g. in waste incineration, waste gas cleaning and cement mfr) (b) for lining electrolytic Al prodn. vessels; and (c) in the form of spent material with at least 70% Al2O3 content as raw material for aluminium prodn. It can be used as surface levelling material or a joint filler or as fired bricks. The lime component causes formation of a surface protective layer providing high resistance to attack by fluorine-contg. media
Patent DE-4134473-A1 (DE)
Title: Automatic nonlinear distortion measuring system - uses two frequency analysers to determine max. amplitudes of frequency components before and after decoupling
Inventor: KUFER WOLFGANG
IPC: G01R23/20
Filed: 1991-10-18
Abstract: The measuring system evaluates the frequency spectrum from a measurement object (4). Two series connected frequency analysers (1,2) are used, one for determining the maximum amplitude component (e.g. f1), decoupling this frequency from the measurement signal, and outputting the remaining signal to the other analyser. The second analyser detects the maximum amplitude component (e.g. f2) of its input signal, determines its frequency, and decouples it from the measurement signal. The measured frequencies (f1,f2) are used to calculate the frequency components of the measurement signal for calculation of the root mean square value. This is carried out in accordance with the intermodulation or two tone method, e.g. by calculation of D=f1-f2. ADVANTAGE - Automatic and high speed calculation of nonlinear distortion by parallel measurement.
Patent DE-4136780-A1 (DE)
Title: Coin operated coupling mechanism of supermarket trolleys - has latch with stacked plate assembly having locking key or chain and retained coin release
Inventor: FUCHS PETER
IPC: G07F7/06
Filed: 1991-11-08
Abstract: The coupling mechanism is of a sandwich type structure and is fitted to the handle of each trolley. A key element on one end of a chain, also secured to the handle, is located in a slot in the coupling mechanism to connect one trolley to another. Release of a trolley is effected by inserting a coin (15) at a higher level. The coin releases the latching key and is retained until the key is reinserted after using the trolley. USE/ADVANTAGE - To control access to shopping trolleys. Simple construction with 2 levels for coin and key.