baber/WOPTO huggingface dataset:
Patent DE-3928573-A1 (DE)
Inventor: KAWASHIMA YOSHIKAZU
IPC: G01S13/76
Filed: 1989-08-29
Abstract: In a radio transponder apparatus a rectifier 11 converts a received radio wave into a DC power for a response logic circuit 12, a voltage comparator 21 compares an output voltage from the rectifier with a predetermined minimum operating voltage L for controlling a circuit 20 which activates one of components which constitute the radio transponder apparatus to start a response operation when the output voltage from the rectifier is not less than the minimum operating voltage. The circuit 20 may control the supply of DC power to circuit 12, the supply of response signal from circuit 12 to transmitter 15 or the supply of interrogation signals from receiver 14 to circuit 12. The output of comparator 21 may actuate a display 22 or an alarm. The apparatus avoids erroneous operation when the transponder is located beyond an optimal distance from an interrogating apparatus. The transponder may be an ID card or a product on assembly line. <IMAGE>
Patent DE-3929681-A1 (DE)
Inventor: DOBLER KLAUS DIPL ING DR
IPC: G01D5/22
Filed: 1989-09-07
Abstract: In a measuring device (10) for determining the travel or angle of rotation of a machine component (21), one coil (19) is arranged on a sleeve-like body (16) and another (20) on a cylindrical body (17). The sleeve (16) and the core (17) are on a support (15). The core (17) engages in a sleeve (13) of non-ferromagnetic but electrically conductive material. In addition, the sleeve (16) is taken over a core (12) of ferromagnetic material. Here, the coil body (16) and the core (12) and the coil body (17) and the sleeve (13) are coaxial. Owing to the eddy current effect, the inductance in the coil (20) is reduced, while on account of the ferromagnetic effect the inductance in the coil (19) is increased. Errors of measurement can be partly eliminated and the measurement signal amplified through the cross-connection of the coils (19, 20) in an evaluation circuit.
Patent DE-3930752-A1 (DE)
Title: Pulsed power source providing stabilised DC outputs - has pulse width modulated transformer control with load referencing circuit and transducer regulating voltage
Inventor: DUESSEL KARL-HEINZ DIPL ING
IPC: H02M3/335
Filed: 1989-09-14
Abstract: A pulsed power source (UO) feeds a transformer (Tr) primary (No) via an inductance (LO), capacitor (CO) and semiconductor switch (S). A transformer secondary (N1) provides an output voltage (U1) derived from a load referencing circuit in which transformer voltage and load fluctuations are monitored by regulator (R2) for appropriate pulse width modulation by controller (St). An additional secondary (N2) supplies a rectified DC output (U2) to a further load (not shown) controlled by transductor (L2) and monitored by regulator (R1) which generates a transductor signal current (15). Voltages (U1, U2) and additional output voltages as required are thus stabilised over the full range of working loads. USE/ADVANTAGE - Supply of stabilised DC voltages where load compensationm is important. Low loss circuit. Transistor response times are largely unaffected by external circuit loading.
Patent DE-3931582-A1 (DE)
Title: Gas-turbine waste-heat utilisation - involves feeding turbine outlet air and cooled exhaust to waste-heat boiler
Inventor: RICHARTS FRITZ DR ING
IPC: F02C7/08
Filed: 1989-09-22
Abstract: The method utilises high-temp. waste heat from a gas-turbine-driven electric generating set.  Air emerging from a compressor at approx. 350 deg. C is heated by exhaust gas at approx. a000 deg. C.  The air from the compressor (3) passes through a first high-temp. heat-exchanger (6), where it is heated to roughly 950 deg.C. A second such exchanger is similarly heated, the two being cyclically supplied alternately with exhaust gas and air from the compressor. The heated air is fed to a turbine (1) driving the compressor and generator (4).  The outlet air from the turbine at roughtly 490 deg. C is directed, together with the exhaust gas cooled to roughly 380 deg. from the exchanger, is passed to a waste-heat boiler (9). USE/ADVANTAGE - Full utilisation of available heat from gas turbine.y
Patent DE-3941677-A1 (DE)
Title: Differential amplifier with multiple differential stages - uses common connection of inputs and outputs to achieve desired characteristics
Inventor: BOEHME ROLF DR
IPC: H03F3/45
Filed: 1989-12-18
Abstract: The differential amplifier has a number of differential stages (F1,F2,...Fn) each with an input (A1,A2,...An), a second input (B1,B2,...Bn), an output (C1,C2,...Cn), a second output (D1,D2,...Dn), and a current source input (E1,E2,...En). The firstinput (A) of the differential amplifier is directly connected to each of the first inputs (A1,A2,...An) of the differential stages, second inputs (B) to each of second inputs (B1,B2,...Bn), first output (C) to each of first outputs (C1,C2,...Cn) second output (D) to each of second outputs (D1,D2,...Dn). In partic., the differential stages are not symmetrical, but have equal and opposite offset voltages. USE/ADVANTAGE - Differential amplifiers for amplifiers, mixes, multiplexers, processor. Large linear operating region.
Patent DE-3942715-A1 (DE)
Title: Layering a substrate with high-temp. superconductive material - using melt process in which conductive material is partially sintered
Inventor: GRIMMER RUDOLF DIPL CHEM DR
IPC: C23C26/02
Filed: 1989-12-22
Abstract: Layering a substrate with a high temp. super conducting material (HTSL) using a melt process, in which the HTSL-material is partially sintered, comprises: (a) prepg. the HTSL material in compact form as a cylinder or roll which can be rotated about their axes; (d) directing the substrate on the rotating cylinder or roll; (c) sintering a surface of the roll or cylinder by energy coupling before covering the substrate; and (d) covering the sintered vol. of the HTSL material as a layer on the substrate. ADVANTAGE - Sintering time of the HTSL-material is short, so that neither a mixing of the melt nor an increase of opt. necessary fine precipitation is produced.
Patent DE-4001099-A1 (DE)
Inventor: PARADIES HENRICH HASKO PROF DR
IPC: A01N57/20
Filed: 1990-01-17
Abstract: The invention relates to a process for removing viruses, in particular viruses with a phospholipid sheath, from biological fluids, in particular fluids containing proteins, by introducing dialkoxyphosphorus compounds, characterized in that the dialkoxyphosphorus compounds are used in the form of dialkoxyphosphorus compounds of formula (I): Tr-Spac(-O)nPO(OAlk)2, which can be separated mechanically and are bonded to carriers. In formula (I), Tr stands for an inert carrier, Spac stands for a spacer, n is equal to 0 or 1 and Alk stands for alkyl groups with 1 to 10 carbon atoms.
Patent DE-4005315-A1 (DE)
Title: Optical information recording medium - has two recording layers with common metallic element
Inventor: NAKAMURA NAOMASA
IPC: G11B7/243
Filed: 1990-02-20
Abstract: An optical information recording medium has a substrate (12) and two recording layers (14,16), each containing common multiple metal elements. Both are fused to a reinforcing layer (18a), where they are exposed to a light energy source with a threshold value. A third recording layer (20)  between the first and second layers contains no metal elements. Parts of the information recording medium are heated by a light ray (LB) to fuse the first and second recording layers. USE/ADVANTAGE - Records information by changing the optical condition of recording layer, useful for video disks, digital sound disks or disks for recording information on documents.
Patent DE-4009476-A1 (DE)
Inventor: NISHIMURA MAKOTO
IPC: G11B21/08
Filed: 1990-03-23
Abstract: The apparatus comprises means for driving a magnetic head; means A for determining the remaining displacement which is the difference between the current magnetic head position and the target head position; a memory B for outputting standard velocity data corresponding to the remaining displacement; means C for calculating the head velocity based on data indicating the current position read out from the magnetic disk; and means D for calculating the drive current to be supplied to the magnetic head drive means based on the above mentioned remaining displacement, standard velocity data, and magnetic head velocity; whereby control can be carried out stably at high speeds. <IMAGE>
Patent DE-4011003-A1 (DE)
IPC: B29C48/495
Filed: 1990-04-05
Abstract: The invention relates to a process for manufacturing a multi-layer, preferable twin-layer composite of a polystyrene foam film and a coextruded unfoamed film, especially for further processing into labels or mouldings making use of the shrinking capacity of the films, in which a polystyrene material is extruded together with nitrogen as the blowing agent and a pore former from the nozzle (16) of an extruder (2) and the extruded material is blown below the softening point before cooling. In order to produce polystyrene foam film which is as aging-resistant and easily printed as possible with the greatest possible saving in material and as reliably as possible, the invention proposes that 1/30 to 1/50 nitrogen (measured in NL) of the weight of the film (expressed in grams per square metre) be used as the blowing agent per kilogram of foam film, together with a powdered mixture of sodium bicarbonate and citric acid, and that the rigidity/surface quality of the film be controlled by the blowing ratio.
Patent DE-4013109-A1 (DE)
Title: Banknote sorting device for different banknote values - feeds identified banknotes to respective reception compartments
IPC: G07D7/12
Filed: 1990-04-25
Abstract: The sorting device supplies the received banknotes to a checking device which determines its value, to allow the banknote to be fed to the respective compartment. The handling of the banknotes is effected via independant transport and positioning devices (15,17), each with its own drive motor (16,18) coupled to a control device supplied with signals identifying the accepted banknotes. The banknotes are transported between two opposing endless bands (13,14) the transport device (15) brought into a given position via the positioning device (17).
Patent DE-4013801-A1 (DE)
Title: Consolidation of loose soil - by injecting liq. cement into soil with aid of compressed air
Inventor: BERG JOACHIM DIPL ING
IPC: E02D3/12
Filed: 1990-04-28
Abstract: The method is for compacting and reinforcing loose soil so that it can support the loads imposed on it. A hole is bored in the soil by a drill (5) which has a cutting tip (7). The drill shaft is enclosed in a housing and liquid cement from a pipe (3) is injected into the housing together with compressed air through a pipe (4). The cement is sprayed from radial nozzles (9) into the surrounding soil. At the same time water is pumped into the soil from a pump (12). The cement is reinforced with fibres which may be in the form of steel needles cut from steel wire unwound from a coil (14). USE - Consolidation of loose soil.
Patent DE-4019170-A1 (DE)
Inventor: BLUM STEPHAN
IPC: C07B41/12
Filed: 1990-06-15
Abstract: In a process for carrying out an equilibrium reaction, one or more products are removed by vapour permeation. To obtain high reaction rates at high reaction temperatures, the reaction is carried out in a bubble reactor (1) and the lower boiling point educt is passed through the educt maintained at the reaction temperature in the reactor. The reaction temperature and reactor pressure are adjusted so that the reaction temperature is above the boiling point of at least one of the products, the vapour permeation takes place outside the reactor (1) at a suitable temperature dependent on the membrane material, and the vapour phase (10) of the reaction mixture in the reactor (1) is supplied as feed to the membrane module (2) in which the vapour permeation is carried out.
Patent DE-4019328-A1 (DE)
Title: Spacing strings of musical instrument - by guide rollers mounted in parallel shafts with washers between rollers
IPC: G10D3/04
Filed: 1990-06-18
Abstract: The appts. adjusts the width of the spaces between the strings of a guitar or a similar musical instrument. The adjustment device is mounted at the head end of the guitar and consists of a baseplate (3) with a vertical flange at each end.  These flanges support two parallel shafts (6). The strings pass under the guide rollers mounted on the first shaft (6) and over the rollers (2) mounted on the second shaft.  The rollers are spaced apart from each other by means of washers so that the strings are held in their required positions. USE - Guitars and similar musical instruments.
Patent DE-4022562-A1 (DE)
Title: Open-end spinning rotor shaft - has a magnetic axial bearing with facing magnets at free shaft end and in the housing
Inventor: WELTERS NORBERT
IPC: D01H4/12
Filed: 1990-07-16
Abstract: The bearing system for the free end (3a) of the rotor shaft (3) in an open-end spinner, as the axial bearing (A) to support the free shaft end, is a magnetic bearing with a magnet (7) at the free end (3a) of the shaft and a facing magnet (9) in the housing (11) of the bearing (A). The magnets are not in contact with each other and are opposed to each other. Pref. the magnet (9) in the housing (11) of the bearing (A) is located on an axial extension of the rotor shaft (3) axis (8), facing the magnet (7) at the free end (3a) of the shaft (3). The like poles (N, N) of each magnet (7, 9) face each other. The position of the magnet in the housing (11) can be adjusted. Both magnets (7, 9) face each other. The position of the magnet in the housing (11) can be adjusted. Both magnets (7, 9) of the magnetic bearing (A) are permanent magnets, or the magnet in the housing (11) can be an electromagnet. The permanent magnet (9) in the bearing (A) housing (11) can be coupled to a further electromagnet to overlay the magnetic field generated between the two permanent magnets (7, 9). A control, linked to the electromagnet, varies the magnetic field. A sensor monitors changes in the gap width (13) between the facing magnet poles (N, N) to activate the electromagnet for a stronger magnetic field to compensate for an increase in the gap (13) width. ADVANTAGE - The magnetic bearing system supports the end of the rotor shaft axially, with improved rotor running.
Patent DE-4023413-A1 (DE)
Title: Security arrangement passing fan-shaped beam through objects - has transport path through which object is moved on palette by driven rollers
Inventor: BERMBACH RAINER DR ING
IPC: G01V5/00
Filed: 1990-07-23
Abstract: The transport path contains a palette (6) of low X-ray absorption which can be displaced along the path on driven rollers (7) to carry the object (5). The transport path leads through a tunnel (3) in which the device for passing the beam through the object is arranged. USE/ADVANTAGE - Esp. for passing fan-shaped beams through containers and/or vehicles, e.g. at airports, to search for bombs, weapons, drugs and contraband. Simplifies transport of objects being searched.
Patent DE-4027769-A1 (DE)
Title: Waist band fastener for trousers, skirts, etc. -  has stop rail fastened on one waistband part and carriage connected to other part which is guided on rail
Inventor: BIRKHOFER HERBERT DR ING
IPC: A41F1/00
Filed: 1990-09-01
Abstract: A waistband fastener for trousers or skirts incorporates a stop rail fastened on one of the waistband parts. A carriage connected to the other waistband part is guided on the rail in an adjustable and lockable manner. The lock mechanism can be released through shifting an operating component, which is designed as a toothed slide moving in parallel to the stop rail. It is spring-loaded and controlled through being supported on at least one carriage slope in the locking position in relation to the rail. ADVANTAGE - The fastener is simple and more reliable in use.
Patent DE-4031705-A1 (DE)
Inventor: MACHOLDT HANS-TOBIAS DR
IPC: G03G9/097
Filed: 1990-10-06
Abstract: The use of aryl sulfide, sulfoxide or sulphonic compounds having the structural type (I), in which m equals 1, 2 or 3, n equals 0, 1 or 2 and A and B represent a hydrogen, metal, ammonium, immonium, guanidinium, phosphonium, arsonium or stilbonium ion, as charge regulators for electrophotographic toners, developers, powders or powder coatings is disclosed.
Patent DE-4036442-A1 (DE)
Title: Focused shock wave generator with two focusing reflectors - retractable from working position in field of concave conical radiating surface coupled to transducer
Inventor: HASSLER DIETRICH DIPL ING
IPC: G10K11/28
Filed: 1990-11-15
Abstract: The radiating surface (45) of a pressure pulse source (46) has rotational symmetry about the axis (M) and is tapered towards the focal regions (F1, F2) of two reflectors (41,42). In the working position each reflector diverts the boundary rays (47a, 47b) of the outgoing radiation into the appropriate focal region (F1,F2). A central ultrasonic transducer (50) is fitted into above (51) in a holder on which an acoustic waveguide (52) is formed. USE/ADVANTAGE - Non-invasive destruction of kidney stones or treatment of pathological tissue changes. Examination of materials. Focus can be shifted quickly and easily w.r.t.  source of pressure pulse.
Patent DE-4036944-A1 (DE)
Title: Prefabricated concrete building component - is enclosed in sheet iron with protrusions and recesses forming shuttering for pouring
Inventor: STELLAMANNS STEFAN
IPC: B28B23/00
Filed: 1990-11-20
Abstract: The prefabricated concrete component is for use in the wall, corner or ceiling of a tall building.  The edges of the component (10,11) are enclosed in a sheet-metal and pref.  sheet-iron frame which forms the shuttering during the pouring operation. Sections of the frame incorporate mating protrusions (21) and recesses (23), by which the components are fitted together. ADVANTAGE - Protects from damage during transport and handling.
Patent DE-4038904-A1 (DE)
Title: Digital signal processing with buffer memories and multipliers - involves grouped multiplications and intermediate summations in separate clock periods for parallel and independent digital outputs
Inventor: LEHMANN GERALD DIPL ING
IPC: H03H17/06
Filed: 1990-12-06
Abstract: The signal processing includes cascaded transversal filter with sections (T1-m), each contg. e.g. three multipliers (M1-M3) and buffer memories (tau) with an adder (S1) for the partial prods. Additional buffers (tau e, tau a) are provided between sections of the cascade. The multiplications are divided into gps. for separate performance during successive clock intervals. The partial prod. formed in one interval is added to the intermediate sum of prods. obtd. from all preceding intervals, and buffer-stored as a new intermediate sum. USE/ADVANTAGE - For signal processing and/or generation, with reliable operation even with high scanning rate, and a simple design.
Patent DE-4100013-A1 (DE)
Inventor: MODRAK JAMES PATRICK
IPC: E01C11/16
Filed: 1991-01-02
Abstract: A fiber-reinforced asphalt-type paving composition comprising a base component of an asphalt-type material adapted to be applied to a substrate before or concurrently with heating to a softened or molten form, and reinforcing fibers comprised of bicomponent fibers comprising a polyolefin-containing bonding component conjugated with a polyolefin-wettable reinforcing component, the bonding component having lower softening and melting points than the reinforcing component, the paving composition having an application consistency within a temperature range lying between the softening point of the bonding component and the melting point of the reinforcing component, a method for making it and uses for it, are disclosed.
Patent DE-4104289-A1 (DE)
Title: Plough with spring device - protects plough-bodies when they encounter stone
Inventor: LAUMANN BERNHARD
IPC: A01B61/04
Filed: 1991-02-13
Abstract: A plough is fitted with a device to protect the plough-bodies by means of a pre-stressed compression spring on the tubular plough-beam, which creates a withdrawal force allowing the plough-body to yield if it encounters a stone. Each plough body (8, 9) is arranged beside the tubular plough-beam (5) and displaced to the side away from the plough frame (2). USE/ADVANTAGE - Mechanism allows the plough to work without trouble even under unfavourable conditions.
Patent DE-4107225-A1 (DE)
Title: Electric pin plug protective wall socket - has insulated pin part for insertion in socket for electric current with closure cap for access
Inventor: TOWET DETLEF
IPC: H01R13/62
Filed: 1991-03-07
Abstract: The protective pin plug (1) has a magnetisable metal piece (2) or a magnet piece for withdrawal of the pinplug from the socket, using a tool holding a magnet piece or a magnetisable metal piece, or actually comprising a magnet piece or a magnetisable metal piece. One magnetisable metal piece or magnet piece is located in the area of the closure cap (4). The pin plug has a dividing wall (5) which when inserted extends between the magnetisable metal piece (2) or metal piece. Also in the inserted state, a protective layer (6) covers the magnetisable metal piece or magnet piece. One magnetisable metal piece or magnet piece has an m-flat pole surface (7). A protective layer is located on the outside of the magnetisable metal piece or magnet piece, and on the upper surface of the closure cap are uneven formations, such as ribs, burls.
Patent DE-4109253-A1 (DE)
Title: Milk quantity measurement arrangement for sampling - has animal identification device and writer of data into EEPROM integrated into specimen bottle
IPC: G01N35/00
Filed: 1991-03-21
Abstract: The arrangement contains a measurement device, control electronics and a sample extraction device. The control electronics contains an animal identification device and a further device for writing into a read/write memory integrated into the body of the milk speciment bottle inserted in the sample extraction device. The writing device is suitable for writing into an EEPROM which is integrated into the body of the sample body. ADVANTAGE - Ensures absolute reliability of association between specimen and its related data.
Patent DE-4112756-A1 (DE)
Title: Machine for mixing and distributing cattle feed - is equipped with guillotine on swivelling telescopic arm, and comprises container with internal mixing chains, paddles and spiked roller
Inventor: STRAUTMANN HEINRICH
IPC: B01F15/02
Filed: 1991-04-19
Abstract: A machine for mixing and distributing cattle feed consists of a container (3) into which the fodder (5) is filled by means of a guillotine (8) on the end of a pivotted telescopic arm (6,7) and which is emptied through shuttered openings in the sides. Inside the container (3) are endless mixing chains (13) on either side and fitted to these chains are cross paddles (16). Above the chains is a power driven transverse spiked roller (26) mounted on an axle parallel to the mixing chains axle. Alternatively the roller axle can be at right angles to the mixing chains axle. The roller (26) is hinged at one end to allow it to swing up or down as required. USE/ADVANTAGE - The mixing process is improved and accelerated by the spiked roller.