baber/WOPTO huggingface dataset:
Patent DE-4030331-A1 (DE)
Inventor: BEISTER HEINZ JUERGEN DR
IPC: C02F1/04
Filed: 1990-09-25
Abstract: The invention concerns a process for the disposal of glycol-containing liquid wastes, the process comprising a first evaporation stage in which most of the water is distilled off and a second evaporation stage in which the slurry remaining from the first evaporation stage is distilled to separate off most of the glycol, the residue of the second evaporation stage being disposed of as toxic waste.
Patent DE-4034727-A1 (DE)
Title: Plastic card incorporating flat tool - e.g. key, file or blade, which swivels outward for use
Inventor: FIESELER WILHELM
IPC: E05B19/04
Filed: 1990-10-31
Abstract: Plastic card with an integral flat tool, e.g. car key, nail file, knife blade or the like, the novelty is that the tool extends in the card plane and is joined to the card to allow outward swivelling in the card plane so that part of its length extends beyond the card edge.
Patent DE-4035710-A1 (DE)
Title: Noise suppression method for sensor arrangement using transmitter and receiver - modulating random signal generated at transmitter and correlating received signal in evaluating circuit with random signal
Inventor: BETZ OLIVER
IPC: G08B29/18
Filed: 1990-11-09
Abstract: The noise suppression method uses a random generated signal (7) for the transmitter (1). The signal obtained at the receiver (2) is correlated with the random signal (7) in an evaluation circuit (6) to extract the transmitted signal from the accompanying noise. Pref. the transmitter is coupled to a pseudo-random signal generator (3) providing a signal (7) modulated by superimposing different frequencies which is also fed to the valuation circuit (6) coupled to the receiver (2). The correlation of the received signal with the modulation signal delivers the statistically most probable evaluation valvue for the interference-free signal, namely, the value at which, derived from the measuring period, the quadrant of the different between the received and estimated signals is at a min., achieving an optimal process. USE/ADVANTAGE - Light barrier. Good noise suppression within short measuring interval.
Patent DE-4036448-A1 (DE)
Title: Bauxite digestion in ball mill - for simultaneous fine grinding, leaching and silica removal
Inventor: PAWLEK FRANZ PROF DR ING
IPC: C01F7/0633
Filed: 1990-11-15
Abstract: In bauxite digestion by simultaneously leaching and grinding bauxite with caustic soda in a ball mill, the novelty is that (i) the mill is a stirred ball mill; (ii) the charge also contains lime in an amt. corresp. to the stoichiometric amt. of 1-3 (1.8-2.2) mol. CaO per mol. SiO2 which otherwise goes into soln.; and (iii) the mill (or its contents) is heated to 80-98 (88-92) deg.C. ADVANTAGE - Process effects simultaneous fine grinding, leaching and silica removal, without Al2O3 and Na2O losses during silica removal and without red mud formation. After cooling obtd. aluminate liquor, aluminium hydroxide pptn.  is induced by stirring so pptn. duration is shortened and hydrated alumina yields are increased.
Patent DE-4036694-A1 (DE)
Inventor: DIEMER WOLFGANG DIPL ING
IPC: B01D29/46
Filed: 1990-11-17
Abstract: The invention relates to a plate filter consisting of a set (2) of mutually aligned plates (3). The plates (3) have apertures (5) which are mutually aligned and form flow channels (6, 7) in the longitudinal direction (8) of the set (2), whereby filter-gaps (4) are formed between adjacent plates (3) transversely to the longitudinally direction (8) of the filter set (2) and opening into flow channels (7) discharging the filtrate. In order to keep the fitting height low for high throughputs, the plates (3) are directly superposed and their apertures (5) form a plurality of flow channels (6, 7) which are continuous in the longitudinal directio (8) of the filter set (2) and convey unfiltered or filtered fluid. There are filter gaps (4) between adjacent flow channels (6, 7), the channels (7) conveying the filtrate being adjacent to that (6) conveying the unfiltered fluid.
Patent DE-4037220-A1 (DE)
Title: Double function rotor sail for boat - consists of wind vanes on vertical shaft
Inventor: SCHLOBIES CHRISTOPH DIPL PHYS
IPC: B63H7/00
Filed: 1990-11-23
Abstract: The double function rotor sail (1) drives a boat. It has wind vanes which alternately take energy from the wind, and release energy to the wind, to drive a ship. The vanes are fastened to a vertical rotary shaft, they may be rigid, and of optimum aerodynamic shape. The system may simultaniously drive a flywheel mass, and/or generator, and/or ship`s propellor, and/or additional rotor, etc. The vanes are fastened pivoted to telescopic arms, which are directed downwards at an angle. USE - Rotor-type sail for boat.
Patent DE-4100640-A1 (DE)
Title: Combination thermally regenerated activated carbon@ filter - for solvent recovery and emission control for air discharged to atmos. by dry cleaning machines
Inventor: BAUMANN WALTER DR ING
IPC: B01D53/04
Filed: 1991-01-11
Abstract: Regenerative filter system for cleaning a recirculating air stream from a solvent process, particularly for purifying an air stream from volatile halocarbons, having a reversibly operable fan (19) in a circulatory system that can by means of two isolating valves (20,21) either be opened to connect with a solvent-using process via lines (11,12) or closed off to allow for filter regeneration, a condenser (15) with a condensed liq. receiver, and a thermally regenerable first activated C filter (17), and which is novel in having a second regenerable activated C filter (18) that can be connected in series with the first filter via on/off valves (22,33) on respective feed and return lines (13,14) in order to remove solvent from air discharging to atmos., and also that the second filter (18) is thermally regenerable and connectable into a closed system circulating via the first filter (17). USE/ADVANTAGE - Combination tail gas absorber filter for removing volatile halocarbons from both the operating process vent and separately from the solvent recovery absorber shipping operations, particularly for textile dry cleaning machines.
Patent DE-4101588-A1 (DE)
Inventor: ZAWADZKI BERND DIPL ING
IPC: F16F1/38
Filed: 1991-01-21
Abstract: The invention relates to an elastic support, in particular for the support of a spring eye (12) on the body of a vehicle, which support comprises a rubber-metal part (1) having an inner, cylindrical metal part (2), an outer metal tube (3) and a rubber body (4) vulcanised in between in a securely adhering manner. The outer metal tube has an axial slit (7), which is closed when the rubber-metal part (1) is pressed into a receiving eye (12). According to the invention, the diameter at the respective end face of the rubber-metal part (1) and of the outer metal tube (3) decreases continuously towards a smaller diameter in the axial centre. As a result, insertion into unmachined receiving eyes, in particular into unmachined spring eyes (12), is possible without inadmissibly high stresses occurring. <IMAGE>
Patent DE-4102164-A1 (DE)
Title: Threaded insert for connecting two component parts - has externally threaded outer part and internally threaded inner part
Inventor: MAYER HERBERT DIPL ING
IPC: F16B5/02
Filed: 1991-01-25
Abstract: The threaded insert has an outer part (4) with outer thread (2) and an inner part (5) with inner thread (6). The inner part is mounted in the outer part where it is rotationally secured but can swivel with its axis (19) opposite the axis (18) of the outer part (4). At one end the outer part can have an inwardly projecting dome like annular shoulder (7) adjoined by an end of the inner part whereby the inner part (5) is enclosed with play by the outer part (4). ADVANTAGE - Any axial stagger between the inner thread of the insert and the screw to be screwed into same can be compensated.
Patent DE-4102923-A1 (DE)
Title: Portable barometer with microprocessor and weather forecast display - incorporates memory for control program and weather data necessary for prepn. of forecast from pressure measurements
Inventor: MOCK MARKUS
IPC: G01L19/08
Filed: 1991-01-31
Abstract: In a watertight pref. plastics casing (1) a piezoresistive pressure transducer (2) with temp. compensation (3) is wired to a signal processor (5) providing digital output to a pref. program-controlled microprocessor (7) with memory (8). Clock pulses are produced by a timer (12). A liq. crystal display (13) controlled by switches (15) shows e.g. barometric pressure (local and corrected to sea level), altitude with rate of climb or descent, weather outlook (sunshine, cloud or rain), and warning of two-thirds charge depletion of the battery (10). ADVANTAGE - Better weather forecasts are available from highly accurate, reliable and shockproof device.
Patent DE-4106182-A1 (DE)
Title: Electronic housing extruded section wall plate e.g. for rack, mounting system - has channels formed to provide location for both circuit boards and insulation plates
Inventor: SCZEPUR FRANZ
IPC: H05K7/14
Filed: 1991-02-27
Abstract: The wall plate used to provide a frame for electronic system housings, e.g. a 19 inch rack mounting system, is in the form of an aluminium extrusion (1) with a cross section shaped to provide rigidity and mounting features. In particular the side sections (6, 7) are produced with channels (8) that receive the edges of a circuit board that can be entered from the side. An improvement in the isolation of the board is provided by lining the inner surface with a plate of insulating material (20). The edge of this locates in a narrow slot (18) in the wall plate. ADVANTAGE - Improved isolation of circuit boards.
Patent DE-4106310-A1 (DE)
Title: Power-assisted steering for vehicle - contains servo motor, and two work chambers are connected via work conduits to control valve
Inventor: MAIGHT WILFRIED DE
IPC: B62D5/09
Filed: 1991-02-28
Abstract: Via the control valve (6), the servo motor (1) is alternately connectable to a servo pump (7) and a pressure medium container (8). In each of the two work conduits (4,5) a check valve (10) and a pressure restriction valve (12) are fitted in parallel, the check valve opening in the direction of the work chambers (2,3), and the pressure restriction valve towards the control valve. Parallel to the check and restriction valves is a throttle (11), and both the valves are spring-loaded, a single pressure spring being used to load their respective pistons. The two valves, together with the throttle, are located in a common housing, the throttle serving to damp vibrations. USE/ADVANTAGE - As power-assisted steering for an automotive vehicle, in which negative damping during travel is minimised.
Patent DE-4107441-A1 (DE)
Title: Wooden window frame - has auxiliary frame which enables glass panes to be fitted without glazing strips
Inventor: HILDEBRANDT FRANK
IPC: E06B3/58
Filed: 1991-03-08
Abstract: A wooden window frame is fitted with panes of glass without using separate glazing strips. The glass pane is held in place in the main frame (I) by means of an auxiliary frame (II). The glass pane or a double glazing unit is clamped between sealing strips and held in a rebate in the main frame (I) by the auxiliary frame (II). The auxiliary frame is attached to the main frame by means of special clamps which are secured by screws. The auxiliary frame is attached to the main frame at the same time that the main frame is installed. USE/ADVANTAGE - Wooden window frame with an auxiliary frame which obviates need for glazing strips.
Patent DE-4108919-A1 (DE)
Title: Card game accessory with movable base - has card-holder groove with closed bottom and parallel sides
Inventor: PUHST HERBERT
IPC: A63F1/10
Filed: 1991-03-19
Abstract: The card-game accessory has a movable abse (1) in which is at least one groove (2) with closed bottom. The groove (2) is long enough to hold the maximum number of playing-cards (3) next to each other. The groove (2) sides are parallel and slope at an acute angle to the base support surface. Similar extra grooves (4) are for other playing cards. USE/ADVANTAGE - The accessory enables the player to have his cards visible without having to hold them in his hand.
Patent DE-4111951-A1 (DE)
Title: Polyurethane foam body support - stiffened at middle portion to support and relieve spinal column
Inventor: ERBSE BRIGITTE
IPC: A47C27/14
Filed: 1991-04-12
Abstract: The body-suppport, partic. a bed mattress, backrest etc., is of polyurethane foam. The middle portion is stiffened for part of its length, to support the user's spinal column and relieve it of load. There can be two channel-type spaces, symmetrically situated in relation to the lengthwise centre line, and in which stiffening bodies are inserted. The recesses can diverge from the back area in the direction of the buttocks, while extending for the full length of the spinal column. The stiffening bodies can be round or polygonal-section plastic bars or tubes. ADVANTAGE - Simplicity of mfr., and fully relieves spinal column of whether lying or sitting.
Patent DE-4117207-A1 (DE)
Title: Rare earth metal nitrate prodn. esp. cerium nitrate from chloride soln. - by nitric acid stripping from loaded phosphate ester extractant
Inventor: EICHLER ROLF DR
IPC: C01F17/271
Filed: 1991-05-27
Abstract: Rare earth metal (REM) nitrates are prepd. by (a) treating REM chloride solns. with extractants based on acidic alkyl esters of phosphoric acid adjusted to pH max. 3 by base addn., (b) washing the organic phases with water or aq. alkali metal or ammonium nitrate solns., and (c) re-extracting the rare earth metal ions, contained in the organic phases with nitric acid. The phosphate ester is pref. di(2-ethylhexyl) phosphoric acid. USE/ADVANTAGE - Esp. useful for prepn. of cerium nitrate solns. from technical cerium chloride mixts., esp. 'stripped cerium chloride' (i.e. free from Y and rare earth metals of atomic number 62 and higher). The process has minimal material and energy costs and conversion yields of 96-99% are obtd. in exemplified processes.
Patent DE-4123740-A1 (DE)
Inventor: SCHRAG HANS-JUERGEN DR ING
IPC: C10J3/46
Filed: 1991-07-17
Abstract: For gasifying carbon-containing materials, in particular wastes, by reacting the wastes with a sub-stoichiometric amount of air and/or oxygen or by reaction with steam and a sub-stoichiometric amount of air and/or oxygen in a temperature range from 1000 to 1800 DEG C and a pressure range of 1 bar to 60 bar, the materials are - at least partially - fed to the gasification reactor in such a way that a flow characteristic of a cyclone forms in the reactor and the non-gasifiable constituents of the waste are discharged as a melt.
Patent DE-4124734-A1 (DE)
Title: Silicon carbide component mfr. with improved strength - by sintering a spray-dried material in which resin particles of controlled size are the carbon source
Inventor: HAUPTMANN HOLGER
IPC: C04B35/565
Filed: 1991-07-25
Abstract: Mfr. involves sintering green bodies comprising a mixt. of granules or a slip system with SiC particles and resin particles which provide C. The size of the resin particles is determined by the addn. of a pH controller and water to a soln. of the phenol resin in acetone or ethanol. Ammonia or triethylamine is pref. used as the pH controlling additive. The mixed granulated material is prepd. by spray-drying and contains SiC particles of mean grain size 0.1-2 microns. Boron of mean grain size 0.1-2 microns and resin particles of mean grain size less than 0.3 microns. An aq. soln. of polyvinyl alcohol in water is added to the initial resin soln. A non-hardening component is used as the phenol resin. ADVANTAGE - The strength of the SiC components is improved due to the inclusions of foreign materials, the formation of carbon aggregates being prevented and improved distribution of the resin particles and the ceramic particles in the mixed granulated feed or in the slip.
Patent DE-4125878-A1 (DE)
Title: Raster oscilloscope display with adaptive fluorescence - represents alteration of first variable as function of second variable for processing numerical values stored in memory
Inventor: KURIAPPAN PAUL
IPC: G01R13/26
Filed: 1991-08-05
Abstract: The system for processing numerical values stored in a memory store (36), includes a modification system (70), which receives numerical values from the store and returns numerical values back to the store. The modification unit modifies a numerical value received from the store, before sending it back to the store. In a second mode of the modifications units, a numerical value received from the store, is not modified before being sent back to the store. Designation units (90,104) are provided for testing at least some of the numerical values, and for computing at least one number, which defines a characteristic of the tested numerical value. The designation units are connected with the modification units, in order to set the modification units in the first or the second mode, depending on the numerical value. The modification units (70) pref. have a backward counter (80) for reducing the numerical value, before its return to the store. ADVANTAGE - Gives display with optimum information content.
Patent DE-4126122-A1 (DE)
Title: Loudspeaker fixture with smaller surface for grille attachment - is distinguished by snap-on part for holding together shaped surfaces of grille and bordered frame
Inventor: KUMANOMIDO NORIO
IPC: H04R1/02
Filed: 1991-08-07
Abstract: A border (4), to which the rim of the loudspeaker cone (3) is bonded, is secured to frame (2) comprising an attachment surface (2a) for the grille (5), an inward-extending attachment surface (2b) for the border (4), a retaining-wall-fixing surface (2c) and a slightly protruding outer edge (2d). The grille (5) has a surface (5a) for attachment to the frame (2a), and a cover (5b) for the fixing screws (6) around which snap closures (7) are fitted. USE/ADVANTAGE - In motor vehicles behind rear seats and below rear window.  Height of grille above retaining wall is reduced.
Patent DE-4126454-A1 (DE)
Inventor: GRUENDL ANDREAS
IPC: B60L13/03
Filed: 1991-08-09
Abstract: In a synchronous linear motor, a field of travelling waves is generated in individual sections (SA, SB, SC) of a long stator opposite to an exciter part (EE) located on a vehicle. The field of travelling waves cooperates with the field generated in the exciter winding (EE) by direct current supply, so as to move forward the vehicle. The alternative current supplied to the stator section in order to generate the field of travelling waves induces practically no voltage in the exciter winding. In order to ensure an inductive energy transfer, a higher-frequency alternative current is superimposed on the alternative current available to generate the field of travelling waves. The higher-frequency alternative current induces a high-frequency voltage in the exciter winding that can be considered as the secondary winding of a transformer comprising the stator winding and the exciter winding. The high-frequency voltage can be decoupled by means of a passive or active rectifier (GE). This energy is available for auxiliary devices arranged in the vehicle and/or for supplying direct current to the exciter winding (EE).
Patent DE-4129244-A1 (DE)
Inventor: SCHIEFERSTEIN LUDWIG DR
IPC: C14C9/00
Filed: 1991-09-03
Abstract: The description relates to the use of aqueous dispersions of co-oligomers from radically triggered aqueous emulsion copolymerisation in the weakly acid to neutrally adjusted pH range of: (a) semi-esters of maleic acid with oleophilic alcohols and/or their lower alkylene oxide adducts; and (b) acrylic and/or methacrylic acid as the main components, which may also contain (c) subsidiary mixtures of further hydrophilic and/or oleophilic co-monomers in the oligomer molecule; as amphiphilic agents for the greasing and washing-resistant finishing of leather and pelts. The object of the invention also comprises aqueous dispersions of these amphiphilic co-oligomers with mol ratios of (a) to (b) in the 1:1 to 2:1 range and any components (c) in smaller quantities by weight, whereby these dispersions are set to pH values in the range from neutral to weakly basic and especially take the form of water-dilutable aqueous paste-like compounds. When mixed with the co-oligomers, these aqueous dispersions also contain prior art greasing or hydrophobising agents for leather and pelts.
Patent DE-4130336-A1 (DE)
Inventor: WAMPRECHT CHRISTIAN DR
IPC: C08G18/79
Filed: 1991-09-12
Abstract: A process for the preparation of powder coatings having a glass transition temperature of from 20 to 80 DEG C by mixing A) a polyol component having a hydroxyl number of from 30 to 155 and a glass transition temperature of from 30 to 120 DEG C, B) a polyisocyanate component having a glass transition temperature of from -45 to +45 DEG C, comprising at least one ketoxime-blocked polyisocyanate, C) a catalyst component comprising at least one catalyst for the reaction between blocked isocyanate groups and hydroxyl groups, and optionally D) further assistants and additives, by dissolving the starting components in an inert solvent having a boiling range of from 50 to 150 DEG C, and subsequently freeing the solution from solvent and simultaneously and/or subsequently converting the resultant solid into the powder form, and the use of the resultant powder coatings for the production of coatings on any desired heat-resistant substrates by the methods of powder coating technology.
Patent DE-4132469-A1 (DE)
Inventor: WILLMANN KARL-HEINZ DIPL ING
IPC: B60T8/48
Filed: 1991-09-30
Abstract: A hydraulic braking system (1) with a device providing anti-lock control and generating differential lock by brake engagement is to be structurally simplified without reducing its efficiency. The braking system (1) with a TT braking circuit distribution has a brake pressure adjusting valve arrangement (18) for the wheel brakes (9, 10) in its braking circuit (II) for the driven wheels. Said valve arrangement has only one outlet valve (32) in a return line (27) for the pressure medium used for the wheel brakes (9, 10). In each of the return branches (28, 29) leading from the wheel brakes (9, 10) there is a return valve (30, 31) preventing the transfer of braking pressure from one brake line (13, 14) to the other. Depending on the mode of operation of the system (2), there is no need for outlet valve (32) involvement in braking pressure control for generating a differential lock through brake engagement. The hydraulic braking system (1) is especially suitable for motor vehicles.
Patent DE-4139320-A1 (DE)
Title: Condensate from phenol(s) and nitro:aldehyde(s) - useful for admixture with other polymers having reduced volatility
Inventor: KOEHLER BURKHARD DIPL CHEM DR
IPC: C08G8/04
Filed: 1991-11-29
Abstract: Condensate of general formula (I) of (A) nitroaryl aldehydes pref. m-nitrobenzaldehyde and (B) phenols added as 1-1.6 times molar amts. of (A) R1 = H, 1-22C alkyl, 7-14C arylalkyl or alkyaryl or 6-14C aryl residue with a phenolic or carboxy gp. pref. H for R1 contained within parenthesis n = 1-50. Prepn. of (I) comprises addn. of a nitraryl aldehyde to 1-1.6 times molar amt. of a phenol at 100-180 deg.C in the presence of 0.1-10 wt. % acid (based on amt. of reactants at 0.01-1 bar. USE/ADVANTAGE - Use of (I) for admixt. with other polymers is claimed. (I) has reduced volatility compared to prior art additives for redn. in surface ridging and scaling, especially for polyphenylene sulphide.
Patent DE-4140087-A1 (DE)
Title: Removing plastic from the ends of glass fibre - by burning with focussed laser beam
IPC: B23K26/14
Filed: 1991-12-05
Abstract: The plastic coating is removed from the surface of strips of glass fibre light wave conductors by burning with a laser beam. A solid body laser is used and focussed onto the ends of the fibre. The burnt gases are removed by suction as a gas stream is blown over the treatment area. USE/ADVANTAGE - Method frees the ends of the fibres to a spliced connection or coupling joint. Enables the rapid removal of the plastic without requiring chemical solvent and without damaging the fibre.