baber/WOPTO huggingface dataset:
Patent DE-4000847-A1 (DE)
Title: Adjustable width bedstead with mattress support - has distance between end sections adjustable in steps by detachable coupling members
IPC: A47C19/04
Filed: 1990-01-13
Abstract: The bedstead has outer supports and a common inner support or the mattresses, while the head and foot ends each comprises two side sections adjustable w.r.t each other, together with an intermediate section, overlapping both. The distance between the side sections (22,25) of each end (23,26) is adjustable in steps (30), using detachable coupling members (31), without guides. In addition to the intermediate section (28), each side section (22) of the head end overlaps a panel (32), protruding upwards from the rear of a bed table(33) for which an insertion chamber(34) is provided in the bed. ADVANTAGE - Low-cost mfr, and easy adaptability to bedroom sizes.
Patent DE-4002351-A1 (DE)
Title: Process for purificn. and crystallisation of amphotericin b - by dissolving in methanol, DMF and acid, adding methylene chloride and water, neutralising, heating and recovering prod.
Inventor: MICHEL GERD W
IPC: A61K31/7042
Filed: 1990-01-26
Abstract: Amphotericin B salt forming compsn. comprises amphotericin B of formula (I) and a salt forming acid in a soln of MeOH, DMF and CH2Cl2, in an amt to enhance the crystallintiy and purity of (I), and water. Also claimed is a process for the purification and crystallisation of (I) which comprises: (a) forming a soln. of (I) in MeOH, DMF, and acid capable of forming a salt with (I); (b) sepg. (I) extract form insolubles; (c) combining (I) extract with CH2Cl2, in an amt to enhance the crystallinity and purity of (I), and water; (d) adjusting the pH of the mixt. to 5-7; (e) heating the slurry to expedite the formation of crystalline material; and (f) recovering crystalline (I).
Patent DE-4003812-A1 (DE)
Title: Electrodialyser sealing plate - has frame with rounded inlay network made of specified elastomer-plastomer materials
Inventor: AZUMA ISAMU
IPC: B01D61/50
Filed: 1990-02-08
Abstract: A sealing plate has been devised for an electro-dialyser with several alternating cation and anion exchange membranes, sepd. by sealing plates. The latter are made of plastic material and have a central cut-out with a thermoplastic elastomer network inlay. The gap between the periphery of the latter and the frame is filled by a specified plastic material. The assembled sealing plate between the anion and cation exchange membranes consists of a frame of vulcanised rubber with passages and a network of polyolefin with  projecting sections for holes giving access to the next membrane. They are bonded by a thermoplastic elastomer e.g. PS, PE, Pu or 1.2-PBR. The frame is made of PE, PP, EEA or EVA with an A-hardness of 30-95 deg. ADVANTAGE - Ensures that the frame and the net inlay remain undeformed and the bridging sections have a uniform thickness. (19pp Dwg.No.0/10)
Patent DE-4007727-A1 (DE)
Title: Control valve for pressurised water e.g. for descaling sheet metal - has hydraulic anticipatory control piston to protect valve and piping from damage by high pressure water stream
Inventor: KUSSEL WILLY DIPL ING
IPC: B21B45/08
Filed: 1990-03-10
Abstract: Valve for controlling a pressurised water stream of high kinetic energy for descaling metal sheet, has a valve chamber (20) filled with pressurised water and opened towards the valve outlet (7) by means of a hydraulic anticipatory control piston (6). The control is effected by connection to lower pressure at the pressure medium source (3) which is simultaneously connectable to the inlet or outlet side of the valve chamber (20). From the lower pressure source a forward thrust of pressure water is generated which acts on the control unit. The stream of higher kinetic energy is initiat-ed by the control unit. Pref. the control unit comprises a hydrau-lically operated electro-switch which actives or deactivates the  high pressure supply. More specifically the control is a hydraulica-lly operated anticipatory control valve in the valve circuit. ADVANTAGE - At the beginning of the sescaling process neither the valve chamber nor the pressurised water line are impacted by a perssurised water stream of high kinetic energy. This eliminates damage to the valve or the water pipes from the high pressures.
Patent DE-4009404-A1 (DE)
Title: LCD line-column driver voltage supply - has potential divider with operational amplifiers connected to tappings
Inventor: LANGE HEINZ DIPL ING
IPC: G09G3/36
Filed: 1990-03-23
Abstract: The circuit supplies voltage to the line and column drivers of a LCD generates the difference voltages to be supplied from resistors connected in series between positive and negative supply voltages and operational potential divider formed by the resistors. One end (E1) of the potential divider (R1-R5) is connected to the supply voltage via a voltage regulator (SR) controlled by data words held in memory.  A digital-to-analogue convertor (D/A) is connected between the memory (SP) and the voltage regulator (SR). USE/ADVANTAGE - Enables LCD contrast to be adjusted without activating variable resistor.
Patent DE-4009675-A1 (DE)
Inventor: SUZUMURA MASAHIKO
IPC: H01L21/335
Filed: 1990-03-26
Abstract: A method for manufacturing a static induction type semiconductor device is to form gate zones (13) on a surface side of a semiconductor substrate (11), to cover the surface including the gate zones with an oxide film, to form through the oxide film apertures (15) for providing cathode zones (16) in the substrate, the apertures respectively overlapping partly each gate zone (13), and to form the cathode zones (16) with thermal diffusion of an impurity carried out through the apertures, the cathode zones (16) thus partly overlapping the gate zones (13). Concentration of the impurity as well as the depth of the diffusion at the thus made impurity diffusion zones can be thereby stabilized, and eventually the electric characteristics of the enhancement type, static induction type semiconductor device can be sufficiently made stable. <IMAGE>
Patent DE-4010524-A1 (DE)
Inventor: KRUSE HANS
IPC: C11D3/08
Filed: 1990-04-02
Abstract: Stable, bifunctional, phosphate-free detergent tablets for use in dishwashing machines contain silicate, low-foam nonionic tensides, organic complex builders, bleaches and water. The organic complex builder is a granular alkaline detergent additive, consisting of (a) sodium salts of at least one (meth)acrylic acid homopolymer or copolymer, (b) sodium carbonate, (c) sodium sulphate, and (d) water. The silicate is anhydrous sodium metasilicate and its penta- and/or nonahydrate.
Patent DE-4011512-A1 (DE)
Title: Hydrostatic traversing gear control - uses pressure control valve for axial piston and displacement motor assemblies and influences high pressure regulator
Inventor: WINKLER UWE
IPC: E02F9/22
Filed: 1990-04-10
Abstract: The system has a pressure control valve (20) for the axial piston and displacement motor (2, 3) assemblies and its control piston. It is pressure loaded via a braking valve (4) so that when a preset pressure is exceeded it is displaced and influences the high pressure regulator (25). A bypass nozzle, which opens when pressure falls below a specified level, is provided for the high pressure regulator (25) and is connected to the reservoir (6). The pressure control valve has a set pressure of approx. uses 20 bars. USE/ADVANTAGE - The necessary torque for high speed climbing motion is made available.
Patent DE-4012032-A1 (DE)
Inventor: KNEILE KARL
IPC: A47B49/00
Filed: 1990-04-13
Abstract: The pivoting fitting for a corner cupboard has a rotatable support (11) on which at least one supporting floor is fixed. Hinged on the support (11), by means of mountings, are two door leaves (3,4) which lie at an angle to one another and with which an opening of the corner cupboard can be closed. The door leaves (3,4) can be adjusted from a closed position into an open position. For this purpose, the door leaves (3,4) can essentially be adjusted radially in relation to the rotation axis of the pivoting fitting. As a result of this radial closing action, the door leaves (3, 4) are pushed with their outer sides against the front faces of the side walls of the corner cupboard, through which a gentle closing of the corner cupboard aperture is made possible without the utilisation of complicated and costly braking devices. <IMAGE>
Patent DE-4019937-A1 (DE)
Title: Sealing end closure section of bag pack - involves cap with seal engaging round gathered end of bag
Inventor: NIEDECKER HERBERT DIPL ING
IPC: B65D33/16
Filed: 1990-06-22
Abstract: The sealing arrangement at the end closure section of tubular or bag pack made from foil material gathered round the closure section and closed by a clip has a cap fixed on the clip and surrounding the free gathered end.  The cap (5) is positively locked on the clip and is pref.  made from plastics which pref shrinks through heat action. The circumferential edge (8) of the cap opening has radially inwardly projecting detent lugs (9) which engage behind the clip. USE/ADVANTAGE - Improved sealing action preventing penetration of bacteria etc into the bag.
Patent DE-4020484-A1 (DE)
Title: Liquid wood-protecting agent, with good penetration - contains isocyanate-modified linseed oil, siccative mixt., solvent, biocide and at least one dye
Inventor: BOLLINI TULLIO
IPC: B27K5/02
Filed: 1990-06-27
Abstract: Liq. wood-protecting compsn. (I) comprises isocyanate-modified linseed oil (L) and a siccative mixt. (M) contg. at least one dye, which make up the largest component of the dry substance, a solvent(s) (chiefly consisting of aliphatic, hydrocarbon-free liqs.) and a biocide (B). Pref. (M) is composed of Zr, Ca and Mn cpds. and a silicate to enhance viscosity. (B) is an N,N-diaryl-N'- aryl-N'-(trihalomethylthio) -sulphamide. (S) is a mixt. of ester alcohols and glycol ethers. USE/ADVANTAGE - (I) is applied as a component of a paint or glass. (I) penetrates the wood better than previous compsns., and protects the wood against water, cold and UV light. (I) is non-toxic to humans and pets. (I) is esp. useful against fungi and algae.
Patent DE-4021579-A1 (DE)
Title: Circuit board with screening housing(s) - has enclosed surface in region for screened component reception
Inventor: KRAHL BURGHARD DIPL ING
IPC: H05K9/00
Filed: 1990-07-06
Abstract: The circuit board (1) has a connectable screening housing (2). The circuit board surface is formed as an enlosed section (5), at least in the region for retaining of components to be screened. The screening housing is low-ohmic contactable along its edge with the circuit board surface at presettable spacings. Pref. along the screening housing edge soldering pins (6) are fitted for contacting bores (7) on the circuit board surface in a matching pattern. Alternately, the circuit board surface contains pins for contacting the edge of the screening housing. Typically, the circuit board contains a clocked current supply for a communications system, the component to be screened having an inductive characteristics.
Patent DE-4031862-A1 (DE)
Title: Hydrocarbon-contaminated ground restoration method - mixes alternate layers of earth and additive in sealed heap
Inventor: RISS ANDREAS DR
IPC: C05F17/00
Filed: 1990-10-08
Abstract: Ground contaminated with hydrocarbon materials is biologically restored using a regenerating heap enclosed by sheet material on all sides and supplied with additives. These contain microorganisms loosening the contaminated earth. The heap is built up of alternate layers of contaminated earth and additive, and then sealed off on all sides. It is then mixed and homogenised, the volatile hydrocarbons being discharge as gas. The air laden with the latter is extracted, and any pollutants are filtered out of it. Unrotted compost can be used as the additive. ADVANTAGE - Fast working, and largely avoids atmospheric contamination.
Patent DE-4041500-A1 (DE)
Title: Prepn. of 2,4-di:oxo-hexahydro-S-triazine - by reaction of urea with formaldehyde-contg. cpd., in three stages
Inventor: NIESS REINHARD DR
IPC: B01J19/00
Filed: 1990-12-22
Abstract: Prepn. of 2,4-dioxo-hexahydro- 1,3,5-triazine (I) comprises reaction of formaldehyde or a formaldehyde-contg. cpd. with urea in a molar ratio of 1:2.1-4.5 in a liquid- or solid-liquid mixed-phase in a vapour-heated reactor at 100-300 deg.C. and a stirrer speed 50-200 U/min., reaction being stopped by addn. of water prior to transition of the melt into a solid mixt.. In the first stage of the reaction process the starting materials are heated to 110-130 deg.C. by internal and/or external heating of the reactor over 0.75-1.5 hrs., and water is evaporated. In the second phase the mixt. is warmed to up to 180 deg.C. over 0.5 to 2.5 hrs. by internal and external heating of the reactor, the melt at this stage having a conversion rate of 60-70% based on the amt. of formaldehyde. In the third phase the melt is heated to 180-200 deg.C. over 0.3-1 hr(s). by internal and external heating of the reactor and the reaction is then stopped. USE.ADVANTAGE - (I) is used for prepn. of bactericidal and viricidal prepns. and is an intermediate for prodn. of its 1,5-diacetyl deriv. which is an activator for oxygen-cleaning bleaches in detergents. The process gives (I) in good quality with high space-time yield a
Patent DE-4107970-A1 (DE)
Title: Cargo hold bottom arrangement - has bracket-like holders for gratings, located above floor
Inventor: PERRAKIS EMMANUEL
IPC: B63B3/66
Filed: 1991-03-13
Abstract: The bottom arrangement is for refrigerated cargo holds in ships. It consists of individual panels, formed by gratings. These are positioned at a distance to the floor, on stationary distance elements, to form cooling channels. The channels have passages, to permit access for cooling air. The distance elements are formed by bracket like holders (4), distributed over the floor. These form a support and or fastening surface (6) for the gratings. They also have fastening flanges (8), facing the floor. The holders have low resistance passages (9), directed dependant upon the main feed direction of the cooling air.
Patent DE-4108935-A1 (DE)
Inventor: DAMM ERIC DR
IPC: G04C11/08
Filed: 1991-03-19
Abstract: A compensator for a mechanical pendulum clock has on the rear side of a pendulum bob a center of gravity adjusting device, which is actuated by an electric motor. An electronic controller, which is designed as a comparator and which works as a function of the difference between the signals of a pendulum frequency generator and a clock generator designed as quartz reference oscillator, serves to drive the electric motor.
Patent DE-4111582-A1 (DE)
Title: Remote control system for vehicle door central locking device - has fully automatic signal transmission between stationary and portable transceiver modules
Inventor: KRAUSE ROLF
IPC: G07C9/00
Filed: 1991-04-10
Abstract: The remote control system uses a cooperating transmitter and receiver (1, 2) for transmission of a coded pulse signal in the form of light pulses in the IR range. The transmitter is activated automatically by use of an auxiliary receiver (4) sensitive to the pulses provided by the transmitter (1) and controlling an auxiliary transmitter (5) for transmitting pulses to the receiver (2). The transmitter (1) and receiver (2) are housed within a common transceiver module (6), together with the evaluation circuit, the auxiliary transmitter and receiver (5, 4) housed in a second postable transceiver module (7). ADVANTAGE - Fully automatic operation.
Patent DE-4111900-A1 (DE)
Title: Optically active alpha-terpineol prodn. - by hydration of optically active alpha- and/or beta-pinene using specified acid mixt.
Inventor: MOELLEKEN REINER DR
IPC: C07C33/14
Filed: 1991-04-12
Abstract: Prodn. of optically active alpha-terpineol from optically active alpha- and/or beta-pinenes, or oils contg. them, is effected by treating the starting material with 1-30 wt.% of an aq. acid mixt., and separating the organic phase. The aq. acid mixt. comprises 50-90 wt.% H2O and 10-50 wt.% of a mixt. comprising 1-10 wt.% H3PO4 or 0.2-2 wt.% H2SO4 and 10-50 wt.% of a 2-8C fatty acid (balance not disclosed). USE/ADVANTAGE - l- and d-alpha-terpineol are useful as fragrances and intermediates for other fragrances, esp. esters. The reaction proceeds without racemisation
Patent DE-4115829-A1 (DE)
Inventor: FRANK KURT DIPL ING
IPC: B29D12/02
Filed: 1991-05-15
Abstract: For the purpose of producing a spectacle frame, made from plastic, it is provided for moulded parts (14 to 20) to be applied to, in particular, sprayed onto, a blank (10) in regions at which raised sites are desired. This makes it possible to accelerate the necessary milling work. <IMAGE>
Patent DE-4116632-A1 (DE)
Title: Arrangement for rotation direction and synchronisation error detection - has sensors mounted at offset positions about rotation axis of vibration machine imbalance weights relative to main vibration direction, and has phase analyser
Inventor: RECK MATTHIAS
IPC: B06B1/16
Filed: 1991-05-22
Abstract: The arrangement has at least two counter rotating imbalances in the form of eccentric wts. to detect the position or contour of each imbalance using position or distance sensors. The sensors are mounted offset about the imbalances' rotation axis by equal and opposite angles w.r.t. the main vibration direction. Their phase relationship is evaluated for error interpretation. The evaluation detects an incorrect rotation direction, non-synchronous running or an excessive phase difference between individual imbalances. ADVANTAGE - Can accommodate different rotation directions and displacement of imbalances and its operation is independent of revolution rate.
Patent DE-4123171-A1 (DE)
Title: Octal-code calculator performing four basic arithmetic operations - is based on tetrad circuits incorporating 18 two-input AND=gates and octal-to-binary converter
Inventor: MERKLE PAUL
IPC: G06F7/575
Filed: 1991-07-12
Abstract: The main circuit (1) consists of eight tetrads (5) switchable from addn. to subtraction and vice versa, and two shift registers (3,4) of corresp. length. One shift register (3) is used for the prodn., divided, first summand or minuend according to the operation in question, and subsequently for any sum or difference. The other shift register (4) serves for the multiplicand, divisor, second summand or subtrahend. Both are shifted by three bits per cycle. ADVANTAGE - Purely dual circuits of great simplicity are used in combination with 7s-complement circuit for subtraction in additive manner.
Patent DE-4124101-A1 (DE)
Title: Rendering solid residues from refuse burning, flue gas purificn. etc., inert - by fusing under reducing conditions to give harmless siliceous residue, heavy metal sump prod. and condensable volatile metal effluent gas
Inventor: KOECHER PETER DR
IPC: A62D101/08
Filed: 1991-07-18
Abstract: Process for treating solid residues which contain environmentally harmful metal oxides, obtd. e.g. from burning of refuse or from purification of flue gases, to render them inert, comprises fusing the residues under reducing conditions to yield glassy, glassy-crystalline or crystalline prods. USE/ADVANTAGE - When the solid residues are fused under reducing conditons eg in an arc furnace a molten silicate phase is formed and the environmentally harmful metal oxides such as Fe, Ni, Cr and Cu are reduced to the elementary metals which, being heavier than the silicate phase, sink to the bottom of the furnace below the silicate phase. The low boiling metals such as Zn, Cd and Hg vapourise out of the silicate phase. The vapourised elementary metals and their cpds. can be condensed and further processed. The heavy fraction in the sump of the furnace can also be collected and further processed. Harmful organic materials such as dioxin and furnace are thermally decomposed. The residual material is environmentally harmless and contains only traces of harmful metals, which cannot be leached out.
Patent DE-4126878-A1 (DE)
Title: Hand-held power driven cross-cut saw - is adapted from sanding tool and mounted on guide arm
Inventor: NEUMANN RITA
IPC: B23D45/02
Filed: 1991-08-14
Abstract: A hand-held power driven sander with a bevel gear drive can be adapted for use as a cross-cut saw by replacing the sanding wheel with a circular saw-blade. The tool can then be used to saw in any direction by mounting it on a slide (4). The workpiece is placed on a base-plate (1) which carries a vertical post at one end. A swinging arm (3) which carries the slide is fastened to the post in such a way that it can be adjusted for height and angular position in the horizontal plane. USE/ADVANTAGE - Cross-cut saw with mechanism to guide the blade at a defined angle.
Patent DE-4137143-A1 (DE)
Inventor: MILBRADT GERHARD
IPC: F16H61/04
Filed: 1991-11-12
Abstract: In a motor vehicle gearbox, in particular a multispeed synchronized countershaft gearbox, every two speeds are associated to one among several gearshift sets (28, 29). An essential aspect of the invention is that the two speeds (first and third, or second and fourth), associated to each gearshift set are not successive speeds. Consequently, the gearshift system thus obtained has the great advantage of being a ''shifting-shifting'' system which makes it possible to carry out overlapping actuating operations, thus shortening the time interval between gearshifts. At certain speeds, several gearshift sets or synchronizing means may be loaded at the same time, thus considerably reducing the load on the individual gearshift sets (28, 29). Big advantages such as shorter gearshifting times, longer service life of the synchronizing sets and smaller gearshift sets may thus be obtained.
Patent DE-4138922-A1 (DE)
Title: Flexible bellows-like structure
IPC: B60D5/00
Filed: 1991-11-27
Abstract: Two railway carriages which are coupled together, have a bridge which enables passengers to walk from one carriage to the other. Whilst using this bridge the passengers are protected from the weather by flexible side walls and a flexible roof and if necessary by a flexible floor.The roof and side walls are formed from flexible elements (21) which are fastened together to form a bellows-like structure. Each end element is attached to a rigid frame which is fastened to one of the carriages. Additional reinforcing elements (23) are provided only for the side walls.
Patent DE-4141416-A1 (DE)
Inventor: BESENHARD JUERGEN OTTO
IPC: C25D5/54
Filed: 1991-12-11
Abstract: The invention concerns a method of coating preferably electrically non-conducting surfaces with preferably electrically conducting finely particulate materials by dipping the article to be coated into the following baths in succession: a) an aqueous solution of polymers (pre-dip solution), b) an aqueous dispersion of the finely particulate material, the dispersion also containing surfactants to prevent sedimentation and a salt to ensure the controlled destabilization of the dispersion. Coating with electrically conducting particles, such as graphite or carbon black, can be carried out in preparation for the galvanic deposition of a metal.