baber/WOPTO huggingface dataset:
Patent DE-3924868-A1 (DE)
Inventor: HAHN KLAUS DR
IPC: C08F283/00
Filed: 1989-07-27
Abstract: Expandable molding compositions having high heat distortion resistance and containing from 80 to 99% by weight of a styrene polymer, 1 to 20% by weight of poly-1,4-phenylene sulfide, from 1 to 10% by weight of a C3-C6-hydrocarbon as blowing agent and, if desired, customary additives, are obtained by suspension polymerization of a solution of the polyphenylene sulfide in styrene.
Patent DE-3925893-A1 (DE)
Inventor: KUFNER GEORG
IPC: D03D15/00
Filed: 1989-08-04
Abstract: Woven sheet material for use as interlining in the shirts sector, consisting of sheet-forming warp and weft threads which consist of synthetic material, the weft yarn consisting at least in part of crimped yarns. The ready-woven fabric is then coated in dot fashion with a heat-sealable adhesive composition based on copolyesters and/or high density polyethylene in a dot pattern with a dot density of 600 - 1400 dots/inch<2>. The invention likewise encompasses coloured, marked and flameproofed interlinings. 
<??>The coating with heat-sealable adhesive compositions can be carried out in dot fashion using any known application technique. It is also contemplated to follow the coating operation with a calendering operation. 
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Patent DE-3927057-A1 (DE)
Title: Prodn. of passivated near-eutectic aluminium-silicon alloy - comprises adding pre-alloy contg. strontium to melt just before tapping to reduce contact-time and hydrogen pick-up
Inventor: DIETZ WOLFGANG
IPC: B22D21/00
Filed: 1989-08-16
Abstract: A quasi Al-Si alloy is rendered passive by adding a prealloy contg. Sr to the alloy directly before the melt is tapped into the mould at a turbulent part of the melt flow. The prealloy is added in the casting channel with the time between alloy addition and tapping being 0.1-5 min. The ratio of Sr (in wt.%) to the (in ml/100g) in the prealloy is min. 5. The H2 content in the prealloy is max. 1.5 ml/100 g. The prealloy is in the form of a wire and is added to the melt continuously or discontinuously. The Sr content in the prealloy is 3-20 wt.% and the prealloy contains fine grained elements. The  quasi-eutectic alloy contains 5-14 wt.% Si and the final alloy contains 0.01-0.08 wt.% Sr. ADVANTAGE - By considerably reducing the contact time between alloy melt and Sr-contg. prealloy prior to casting the H2 pick-up is reduced thereby reducing the amt. of final porosity. The resulting pores produced are also finely dispersed.
Patent DE-3928894-A1 (DE)
Title: Connection of electro-optical module for reduced light loss
Inventor: FRONING EDILBERT ALEXANDER DIP
IPC: G02B6/12
Filed: 1989-08-31
Abstract: An electro-optical module such as a laser chip, an LED or a photodiode, is attached to optical waveguides, integrated in a substrate, by etching a pit in the surface of the substrate which cuts into one of the waveguides, by positioning the module relative to the waveguide, and by filling the pit with a solidifying material which has a matching refractive index. An optical waveguide (12) has been produced on the glass substrate (10) by a conventional photoetching technique, leaving two areas (14,16) flanking the intended site for an electro-optical module (20), coated with metal, i.e. unetched. A drop of hydrofluoric acid is used to etch a pit (18). The module (20) is bonded with its bonding wires (22,24) to the contacts formed by the areas (14,16) through a conductive adhesive (26,28). After alignment of the module relative to the waveguide (12), a plastic or silicone rubber liq. is dropped in the pit to form a solidifying mound (30).
Patent DE-3929514-A1 (DE)
Title: Miniature inductive component for HF and VHF range - has axis of wound wire vertical to base support of plastics material to allow surface mounting
Inventor: HOELLER KARL HEINZ
IPC: H01F27/36
Filed: 1989-09-06
Abstract: A miniature inductive component comprises a plastics base plate (2) and a hollow body (1), perpendicular to the base plate, which supports a helical wire (3). Flat metal strip contacts (5.2) disposed on the base plate (2) protrude from the components transverse to the axis (A) of the coil (3). A flat metal plate (4) on the base plate (2) between the contacts (5.2) and one end (3.1) of the coil (3) has a curved portion which determines the adjustment resistance of the component. The component is automatically stamped out from a metal bar such that apertures are punched out enabling the length and or breadth of the curved portion, and therefore the impedance value, to be varied. ADVANTAGE - Simple construction. Can be made in totally automatic process. Inexpensive.
Patent DE-3931439-A1 (DE)
Inventor: RAPPEN ALBERT
IPC: B65G15/60
Filed: 1989-09-21
Abstract: In a sliding member for shock absorption and support of conveyor belts, in particular in conveyor-belt transfers, with at least one elongate basic body (1) and at least one holding plate (4), in which the basic body (1) consists of a surface sliding layer (2) and at least one elastic absorption layer (3), universal applicability and simple retrofitting or replacement of the wearing parts are made possible in that the basic body (1) and the holding plate (4) are provided with corresponding projections (5) or cutouts (6) and the basic body (1) is connected positively and releasably to the holding plate (4). In this respect, the holding plate (4) can be aligned in optimum position under the belt by arrangement on longitudinal and transverse supports (17, 18) which are displaceable and lockable in relation to one another. 
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Patent DE-3934088-A1 (DE)
Title: Protective storage container for used pipettes or pipette tips - has upright receiving cartridge and holding part, inside container having opening with smaller inner dia. than pipette outer dia.
Inventor: AMELUNG ROLF DIPL ING
IPC: B01L9/00
Filed: 1989-10-12
Abstract: Container for keeping a used pipette or pipette tip consists of a support (2) providing a socket (3) on a base (4) with tubes (1) with collarse (5) at the top, in which the pipette or pipette tip can stand. The inside dia. of the opening in the tube is smaller than the largest dia. of the pipette. The tubes are pref.  transparent, so that their condition can be observed, and can be mfd. from any suitable plastic. ADVANTAGE - Pipettes can be re-used instead of being thrown away.
Patent DE-3934657-A1 (DE)
Title: Hydrophobic fine granular mixt. prodn. for road surface filler
Inventor: SIEGMUND WERNER
IPC: C09K3/18
Filed: 1989-10-13
Abstract: The prodn. of a finely granular mixt. (I) with hydrophobic properties and granulation below 0.2mm, pref. 0.1 mm, is claimed. (I) consists of mineral hydrophilic component(s) (II) contg. salt(s) and hydrophobising component(s) (III), with statistically uniform distribution. The salt content of (I) is at least 50 (wt.)%. (II) and (III) are milled together or mixed after (partial) separate milling. The salt is a residue, esp. consisting ' of NaCl from glycerol mfr.; and (b) 0.5-45% of another salt or (hydr)oxide contg. alkaline earth or other non-alkali metal cations is mixed in the moist state with (pt. of) the residue  The moist mixt. is pref. dried before or during milling together, pref. with addn. of rock powder or sand as milling aid. The additive is pref. a Fe, Zn, Al or Ca salt or (hydr)oxide, esp. CaSO4 in the form of moist gypsum from flue gas desulphurisation plants. Extra salt may be added after or during milling. Esp. hydrophobic properties are obtd. by adding commercially available (III), esp. (1-6%)C black and/or (at least 10%) rigid polyurethane (PUR) foam powder and/or calcined perlite during milling. The pref. compsn. is 80% mixt. of 80-85% impure residual salt and 20-15% gypsum, 10% PUR foam powder and 10% lava powder; or 80% salt mixed with gypsum, 10% PUR foam powder, 4% C black and 6% lava powder.
Patent DE-3938012-A1 (DE)
Title: Desalination evaporator for sea-water - comprises initial flash evaporator, external heat exchanger and cleaning system
Inventor: JANSEN HEINZ
IPC: C02F1/04
Filed: 1989-11-15
Abstract: In a desalination evaporator with a number of heated evaporator effects (2,3) an initial flash evapn. effect (1) is provided. The heater (22) of each heated effect (2,3) is heated by the steam produced in the preceding effect, and is in the form of a rising tube heat exchanger. A collection device (11) for pptd. solids is provided at the entry to the first effect evaporator (12), and is designed to encourage crystallisation and incrustaion. The external heat exchanger (5) of the flash evapn. effect (1) is fitted with a mechanical cleaning system. The brine is circulated between ther external heat exchanger (5) and the flash chamber (10) of the first effect (1), and the following effects are connected in series as regards the brine flow. USE/ADVANTAGE - This invention is used in the design of evaporators for desalinating sea water. The proposed arrangement combines the advantages of heated evaporator effects, i.e. low cost efficient operation and flash evapn. effects, i.e. reduced incrustation and easier cleaning. The redn. in salt incrustation rate enables the size of the heat exchange surfaces to be more economically chosen.
Patent DE-3938982-A1 (DE)
Inventor: ROEMLING ULRICH DIPL ING
IPC: H01M50/536
Filed: 1989-11-23
Abstract: The invention relates to a cast-on strap process (COS) for casting the terminal straps onto the lugs of a plate array in a lead/calcium battery. To eliminate the problems occurring in using lead/calcium alloys, it is proposed to use a citric acid solution as flux and to treat the plate lugs with citric acid solution again after an intermediate tin plating before casting on the straps.
Patent DE-4001028-A1 (DE)
Inventor: DORSCH BERND DIPL CHEM DR
IPC: C01B21/094
Filed: 1990-01-16
Abstract: In order to prepare nitrosylsulphuric acid, nitrous gases and sulphuric acid are reacted in a liquid ring pump.
Patent DE-4008569-A1 (DE)
Title: Storage of highly radioactive waste from nuclear plants - using inter-continental rockets for transportation into outer space
Inventor: BOCIAN MANFRED
IPC: G21F9/00
Filed: 1990-03-14
Abstract: An entirely novel and safe mode for storage of highly radioactive waste, by transporting the latter into outer space using rockets. Until now, the highly radioactive waste was processed, reprocessed, permanently or intermediately stored.  With the above processes, the danger of radioactive damage remains (especially for half live tissues of thousands of years).  The highly radioactive waste, being present at relatively small concentrations in the whole  world could be transported into space at speeds of 11.2 km/s to overcome the earthgravity, as radioactive processes occur in outer space in any case.  Intercontinental rockets could be req-equipped which become available due to disarmament. USE/ADVANTAGE - The method can be used to transport highly radioactive waste into outer space.  Storage is permanent, without any danger of radioactive fall-out and at the same time economical as only small quantities of waste  are involved.
Patent DE-4010391-A1 (DE)
Title: Interchangeable picture frame construction - involves body on member sliding in closed groove in other member
Inventor: REP ANTON
IPC: A47G1/10
Filed: 1990-03-31
Abstract: The interchangeable picture frame has inner protrusions securing a flat item. It has two or more opposite joints (33), at which there are guides (27,28) and springs (32) holding the frame members (44,45) together. Each guide comprises a closed groove in a component on one member and in which a body on the other member slides, so as to bring the members together in the correct relative positions, while the body cannot come free of the groove. The spring is coupled between the body and the component containing the groove, and pre-loads the joint when closed. USE.ADVANTAGE - Adjustable and interchangeable picture frame is easily closed in correct position.
Patent DE-4018955-A1 (DE)
Inventor: LAUTENSCHLAEGER WERNER
IPC: B01L3/04
Filed: 1990-06-13
Abstract: In a sample container (9) for the composition and/or analysis of sample material by heating the sample material in a heating appliance (1), especially a microwave oven, consisting of a receptacle part (11) with a receiver opening (15) for the sample material, a cover (14) for closing the receptacle part (11) and a valve (16) in the upper region of the sample container (9), which valve comprises a valve seat (17) and a valve member which is supported against its closing direction on an elastically yielding thrust piece (31), the thrust piece (31) is formed in the shape of a disc spring in its cross-sectional plane extending along the closing direction of the valve (17). <IMAGE>
Patent DE-4021674-A1 (DE)
Title: Pneumatic powder conveyor with pipe arrangement - consists of suction and compressed air pipes with spacer pieces at top and bottom
Inventor: BISCHOF JAKOB
IPC: B05B7/14
Filed: 1990-07-07
Abstract: The pneumatic powder-conveyor from a container (6) incorporates a pipe arrangement (40) axially fitting into a guide (1) hole (7) and consisting of a suction pipe enclosed by a compressed-air pipe with radial space between. The bottom ends of the suction and compressed-air pipes are mechanically connected by a spacer-piece, part of a compressor-air conducting-nozzle tip. The top ends of the suction and compressed-air pipes are mechanically connected by a top spacer piece also acting as an attachment supporting the conveyor pump. The attachment forms the compressed air connection between an external compressed air source and the annular space. USE/ADVANTAGE - The pneumatic conveyor can be inserted fully assembled into a hole in the container-lid.
Patent DE-4025387-A1 (DE)
IPC: C07D401/12
Filed: 1990-08-10
Abstract: Pyrimidine derivatives of the formula I   <IMAGE> I  in which R1, R2, X and Y have the stated meaning, the salts thereof and a process for the preparation thereof are described. Because of their sorbitol-accumulating activity, they are suitable for use as reagents for an advantageous pharmacological screening model for testing aldose reductase inhibitors.
Patent DE-4028647-A1 (DE)
Title: Perforated mask prodn. from thin membrane esp. of silicon - by exposing photoresist in electron or X=ray beam only at periphery of hole and etching through
Inventor: MUELLER KARL-PAUL DIPL ING
IPC: G03F1/20
Filed: 1990-09-10
Abstract: Prodn. of perforated masks from thin membranes involves applying a photoresist, producing the required pattern by exposure to electrons or x-rays and transferring the pattern to the membrane by etching. The novel features are that only the periphery of the required hole is exposed and then the exposed area is etched through. Pref. anisotropic, reactive ion etching is used. The mask to be copied is clamped 10-40 microns from the membrane coated with negative photoresist and x-ray exposure is carried out in such a way that the x-ray energy absorbed in the photoresist has an intensity min. at the edge of the mask to be copied. Alternatively, the original mask is placed between an ion source and a reducing optic, so that the image is reversed in the hole region. USE/ADVANTAGE - The technique is claimed for use with a Si membrane. Masks of this type are used e.g. for ion projection lithography, electron beam proximity printing at high speed, high resolution electron lithography. The technique reduces the exposure time and avoids or minimises proximity problems.
Patent DE-4029343-A1 (DE)
Inventor: EGNER-WALTER BRUNO
IPC: B60S1/34
Filed: 1990-09-15
Abstract: The description relates to a wiper arm (10) with a pipe (16) for washing liquid guided through a pressure spring (14), a bracket (24) connecting the pressure spring (14) with a securing component (13) of the wiper, and a section of pipe (9) projecting from the pressure spring (14) and extending in the direction of the bracket (24). The central part of the bracket (24) arranged between its two end sections is positioned at the side of the pipe section (9).
Patent DE-4032684-A1 (DE)
Title: Bulkhead gate fitting -  has automatic device to apply pressure to seal
Inventor: EGGERS HARALD
IPC: E02B7/54
Filed: 1990-10-16
Abstract: The fitting (1) has a bulkhead gate (2), a guide frame (5), set in concrete, and a seal between the two. There is a pressure application device (8), to press the seal against the sealing surface of the frame. The device has an operating element. This acts on the device due to the own weight of the bulkhead, when a closing position has been reached, so that the seal is pressed against the sealing surface. ADVANTAGE - Simple to operate during installation/removal of bulkhead.
Patent DE-4032792-A1 (DE)
Title: Induction heating appts. for plastics extruder
Inventor: NOLLE EUGEN DR
IPC: B29C48/03
Filed: 1990-10-16
Abstract: An induction heating appts. for plastics extruders employs induction coils with E-shaped cores. The coils are mounted in a 2-piece housing which is clamped on the extruder barrel by spring tension.  The extruder barrel (1) is heated by induction coils (2,2a,3,3a) in which the coil is wound on the central arm (4,4a,5,5a) of an E-shaped laminated iron core. The coils are magnetically coupled to the barrel by an interlayer (6,6a,7,7a) which covers the core. Pairs of coils are mounted in a 2-piece housing (8,9) which is assembled and clamped on the barrel (1) periphery by means of threaded pins (13), carrying washers (15) and nuts (16,17). Disc spring stacks (14) are interposed between the washers (15) and housings (8,9), so that the housings and coils are urged into contact with the barrel by spring pressure. In another embodiment, the appts. may be adapted to a cylindrical extruder barrel.
Patent DE-4032920-A1 (DE)
Title: Controlling transmission of data - involves exercising control at transmitter and coding is reliably checked
Inventor: FRANK KARLHEINZ
IPC: B61L21/00
Filed: 1990-10-17
Abstract: The data transmission system has a transmitting station in which the information to be transmitted is converted by a control circuit (AS) and a coding system (CS) into coded data. Before being transmitted to a receiving station (STZ), the data is checked by a computer (R). Code check signals are produced in a code check circuit (PP). These are compared with the transmission data. When the signals correspond, a command is sent over computer channels (RKA, RKB) to input and output components (EA1, EA2) and the selected transmission data is connected through to transmission lines (U11, U16) under control of the control circuit (AS). USE/ADVANTAGE - For transmission between electronic signal box and rail track positioning appts. Has increased number of possible transmission code combinations. Enables accurate and efficient data transmission.
Patent DE-4037389-A1 (DE)
Title: Water-saving toilet cistern - has separate tanks for fresh water and used water
Inventor: SCHMIDT VOLKMAR DIPL ING
IPC: E03D1/22
Filed: 1990-11-22
Abstract: The toilet cistern has a tank for used water, a fresh water tank below it, and a container, standing in the fresh water. All are connected via channels, openings, and float valves, to initiate a dosed flush of used water, followed by a dosed flush of fresh water. The used water tank (1) has a float-regulated outlet opening (8) in the bottom; when there is insufficient used water in the tank, a set min. required water level (20) is maintained by fresh water, coming in via a float valve (7). ADVANTAGE - Uses water from domestic appliances, etc.
Patent DE-4038690-A1 (DE)
Title: Communications appts. housing with HF-tight cable input - clamps cable between clamp plate and carrier plate with complementary V=shaped formations
Inventor: HAOUY CHRISTIAN
IPC: H05K9/00
Filed: 1990-12-05
Abstract: The cable input comprises a slit opening (4) in the sheet metal wall of the appts. housing, with a carrier plate (6) extending along one of its longitudinal sides, with an associated press plate (7) on the opposite side of the opening (4). The carrier plate (6) and the pressure plate (7) have complementary V formations (11,12), together providing a 3-point clamp for mechanically securing and electrically contacting the cable screening mesh (14). Pref. a contact sleeve (15) is filled between the cable and the V shaped formation (12) provided by the carrier plate (6). ADVANTAGE - Blocks HF interference.
Patent DE-4041209-A1 (DE)
Title: Image-retaining liq. crystal medium for electro-optics and shutters - comprising nematic phase contg. densely packed (pref. silica) particles
Inventor: EIDENSCHINK RUDOLF DR
IPC: G02F1/137
Filed: 1990-12-21
Abstract: A novel liq. crystal medium contg. a nematic phase and densely-packed solid particles has the following characteristics: (i) the quotient (Q)= vol. occupied by the solid particles/relative solids vol. of the particles is 0.005-0.15 pref. 0.01-0.06; and (ii) the solid particles can be set in movement relative to each other by external influences. USE/ADVANTAGE - Electro-optical devices and shutters are claimed which contain the medium. The electro-optical devices are pref. TV screens, data storage units, devices for manual reprodn. of images or electromagnetic wave detectors.
Patent DE-4041232-A1 (DE)
Title: Screw-type rail brake - has inner wall inside brake body forming sepd. suction and compensator chambers
Inventor: RUEGER ROLF DIPL ING
IPC: B61K7/08
Filed: 1990-12-18
Abstract: The brake has a cylindrical body with an external, screw-form running surface. Inside the body is a hydraulic pump system, and also incorporated are bearings, height-adjustable frames with rail fixture, a frame shaft, and a pivot device. A dividing wall (7) inside the brake body (1) separates a suction chamber (8) and a compensator chamber. In the wall is a suction aperture (10) which is below the fluid level in the compensator chamber. The compensator chamber (9) is closed on the face side by a union pin (14) in an airtight manner inserted in the brake body (1). In an axial through hole of the union pin (14) a stop valve (15) is inserted, and the pin is rotatably accommodated in a bearing (3). USE - To brake a railway wagon running freely down an incline.
Patent DE-4041625-A1 (DE)
Title: Asynchronous data transmission via synchronous data transmission system - using oversampling of clock signal only and synchronising data signal with clock signal at receiver
Inventor: BUDNIK NORBERT DIPL ING
IPC: H04L7/00
Filed: 1990-12-22
Abstract: A data signal (D1) and corresp. clock signal (TS1) are transmitted via a digital signal transmission system (U). Oversampling is used on the transmitter side only for the transmission of the clock signal, while at the receiver side, the received data signal (D3) is synchronised with the received clock signal (TS3). The transmission system is e.g. metal cable, optical fibre or a radio link. On the transmitter side, an adaptor (As) has inputs for the data signal (D1) and its clock signal (TS1), and e.g. two clock inputs (TSN, TSM) for the respective two channels of the transmission system, which may transmit low and high bit-rate data respectively. A flip-flop is used as a bit-rate adaptor (AE) at the receiver. ADVANTAGE - Minimised bandwidth requirement.
Patent DE-4101008-A1 (DE)
Title: Method of adjusting mounting for seat belt - uses coupling containing permanent magnets between drive links
Inventor: STEINHUESER GUENTER
IPC: B60R22/20
Filed: 1991-01-15
Abstract: The adjustmer for the mounting of a vehicle safety belt having a pull and/or push link (5) secured to the vehicle seat and connected to another pull and/or push link (1) by means of a two-part magnetic coupling (2,4). The coupling releases the connection between the two links (1,5) at the end of the position path of the adjustable part and makes it again on a counter movement of the seat.