baber/WOPTO huggingface dataset:
Patent DE-3801879-A1 (DE)
Title: Air-conveying device for a heating installation, in particular a tiled stove
IPC: F24B7/02
Filed: 1988-01-22
Abstract: A description is given of an air-conveying device, the conveying wheel (26) of which is driven by an expansion motor (30), to which there is assigned an evaporator which absorbs energy from hot air, the evaporator being part of an absorption circuit in which it is connected in series with a condenser (36) and a control valve (40) oscillating with the stroke of the expansion motor (30). The drive of the conveying wheel by means of energy from the hot air renders an additional external energy source for a tiled stove or the like superfluous. <IMAGE>
Patent DE-3802063-A1 (DE)
Title: Process for the polymerisation of polar compounds IV
Inventor: ECK HERBERT DIPL CHEM DR
IPC: C08F4/42
Filed: 1988-01-25
Abstract: The invention relates to a process for the polymerisation of polar compounds containing a C-C multiple bond in the  alpha -position to a phosphonyl, sulphonyl, nitro or carbonyl group, these being, in particular, derivatives of alkenylphosphono, alkenylsulphono or alkenylnitro compounds and derivatives of alkynylcarboxylic acids. The polymerisation is quasi-ionic, is initiated by organometallic compounds as initiators together with nucleophilic or electrophilic catalysts and is carried out at temperatures in the range from -100@C to +100@C. The initiators used are either silanes, silazanes or siloxanes containing, per Si atom at least one Si bonded H atom or at least one Si-bonded N atom in the form of secondary or tertiary amino or amido groups or at least one Si-bonded C atom in the form of alkynyl or cyclodienyl groups, or silanes, germanes, stannanes, siloxanes, germoxanes or stannoxanes in which at least one metal-bonded hydrocarbonoxy group is present per metal atom.
Patent DE-3804485-A1 (DE)
Inventor: CARTER R RICHARD
IPC: G09G3/282
Filed: 1988-02-12
Abstract: A gas plasma display panel and controller which are capable of displaying various shades on a DC gas plasma panel by varying the manner in which the dots forming a pixel are arranged and by alternating, at a frame rate, the illumination of the dots normally comprising an active pixel. The alternation of the dots, at a frame rate coupled with the illumination of different dot patterns for a given pixel, depending on whether the odd or even line is scanned, produces a sparkling of the dots making up the pixel. The various levels of intensity of the pixeis are derived from the global colour register values which are normally resident in application software for software which is intended for a CGA mode. Thus, the invention achieves compatibility with a CGA mode for a gas plasma display which does not display colour per se. <IMAGE>
Patent DE-3810060-A1 (DE)
Title: Rotary lead-through for fluids
Inventor: HEEL HELMUT
IPC: F16L27/08
Filed: 1988-03-25
Abstract: The rotary lead-through for fluids for the communicating connection of a cavity (5) in a fixed housing (1) to a throughflow channel (4) in a hollow shaft (3) exhibits a sliding annular seal (8) between one end (3a) of the hollow shaft (3) and the cavity (5) and a connection bore (6) which is provided in the housing (1), opens into the cavity and is intended for channelling the fluid into the cavity. In order that, in the cased of blocked throughflow in the throughflow channel (4) and rotating hollow shaft (3), the fluid can continue to circulate and cool and lubricate the sliding annular seal (8), the housing (1) has a second connection bore (7) which opens into the cavity (5) and through which fluid can flow back out of the cavity (5) into a fluid tank or the like. <IMAGE>
Patent DE-3813200-A1 (DE)
Title: Thermoplastically processable plastic mixture
Inventor: WINTER RICHARD
IPC: C08K3/013
Filed: 1988-04-20
Abstract: A thermoplastically processable (thermoplastic) plastic mixture based on modified polyethylene for electrical cables and wires comprises a polyethylene having a density of less than 0.91 g/cm<3> (VLDPE) and fillers in relatively large amount.
Patent DE-3813279-A1 (DE)
Title: High-strength, SiC whisker-containing Si3N4 composite material and process for the production thereof
Inventor: MIYAMOTO YOSHINARI
IPC: C04B35/80
Filed: 1988-04-20
Abstract: The invention relates to a high-strength Si3N4 composite material of a sintered body, which consists mostly of Si3N4, in which SiC whiskers having a low aspect ratio, preferably having an average aspect ratio of from 15 to 100, are present, having greatly improved mechanical properties, in particular a high strength, toughness and mechanical shock resistance. This composite material is produced by mixing the SiC whiskers with Si3N4 powder and subsequent sintering of the resulting mixture by hot isostatic pressing (HIPping) without use of a sintering aid.
Patent DE-3818738-A1 (DE)
Title: Fuel injection nozzle for internal combustion engines
Inventor: BUERGLER LUDWIG DIPL ING
IPC: F02M61/08
Filed: 1988-06-01
Abstract: Published without abstract.
Patent DE-3819510-A1 (DE)
Title: Shutter-retaining means
Inventor: HOETZL MANFRED
IPC: E05C17/48
Filed: 1988-06-08
Abstract: A shutter-retaining means bears, on the underside of the shutter (1), a longitudinally displaceable bar (3) having a vertically upright bolt (9), if appropriate with a run-on roller (11). The bar (3) can be displaced by an actuating handle (3') and is prestressed in one direction by a spring (7). Bolt (9) and run-on roller (11) interact with a retaining bracket which has a retaining protrusion which forms a wedge-shaped run-on surface on the sides which is directed away from the wall. <IMAGE>
Patent DE-3824472-A1 (DE)
Title: Thermally insulating fibrous shaped body and process for its production
Inventor: STEINAU PETER DR
IPC: C04B14/20
Filed: 1988-07-19
Abstract: The invention relates to thermally insulating shaped bodies of ceramic refractory or fire-resistant fibres, vermiculite in a ratio of ceramic fibres:vermiculite of from 80:20 to 30:70, from 5 to 40% by weight, based on total composition, of fibrides of organic polymers, and also temporary and/or permanent binders according to Patent Application P 3701511.7. The thermally insulating shaped bodies according to the invention are characterised in that they contain unexpanded vermiculite having a maximum particle size of 1.0 mm. The invention further relates to a process for producing such thermally insulating shaped bodies. The thermally insulating shaped bodies according to the invention have the advantage that they have good values of the expansion pressure and the erosion resistance on exposure to gases, in particular air.
Patent DE-3828769-A1 (DE)
Title: Method for mixing air streams in air-handling systems and mixing chamber for carrying out the method
Inventor: SCHMITZ HERBERT
IPC: F24F13/04
Filed: 1988-08-25
Abstract: The invention relates to a method for mixing air streams in air-handling systems and to the construction of a mixing chamber for carrying out the method. In this method, the subsidiary-air quantity to be mixed into the main-air quantity is divided up into air jet sections which are introduced into the main-air quantity approximately tangentially to the outer edge thereof. For this purpose, the main-air quantity flows through a tubular duct arranged in a housing, in which case the subsidiary-air quantity flows around the tubular duct perpendicularly to the flow direction of the main-air quantity and flows into the tubular duct through inflow slots formed in its duct shell. By forming a spiral swirling flow of all the air, the subsidiary air is mixed into the main air.
Patent DE-3829416-A1 (DE)
Title: Electrically operated appliance for preparing infusion beverages, such as coffee, tea or the like
Inventor: HENN STEFAN DIPL ING
IPC: A47J31/30
Filed: 1988-08-31
Abstract: The invention relates to an electrically operated appliance for preparing infusion beverages, such as coffee, tea or the like, having a housing in jug form. The interior of the housing is subdivided by at least one dividing wall into a fresh-water container and into a receiving space for the finished beverage, equipped with a pouring-out opening. Arranged in the fresh-water container is a rising pipe, through which the water heated by means of a heating device is supplied to a filter which receives the coffee grounds and is equipped with a cover. The finished beverage flows off through the outlet of the filter into the receiving space of the housing. There is provided a pressure-tight arrangement of the filter between the fresh-water container and the cover of the coffee machine.
Patent DE-3829438-A1 (DE)
Inventor: HUVER THOMAS DR
IPC: C08F4/40
Filed: 1988-08-31
Abstract: PCT No. PCT/EP89/00982 Sec. 371 Date Feb. 27, 1991 Sec. 102(e) Date Feb. 27, 1991 PCT Filed Aug. 22, 1989 PCT Pub. No. WO90/02143 PCT Pub. Date Mar. 8, 1990.The invention relates to moldable, radically polymerizable multicomponent mixtures containing ethylenically unsaturated, polymerizable compounds, if desired in admixture with soluble and/or insoluble fillers and an activator system initiatable by contact with oxygen, and is characterized in that these multicomponent mixtures contain an activator system based on the following principal components which can be initiated by contact with oxygen and water and, in particular, by contact with ambient air: N-alkyl-substituted tert-arylamines containing at least one aliphatic CH bond in the  alpha -position metal compounds at least partly soluble in the system to accelerate the drying of unsaturated oils and compounds of weakly acidic carboxylic acids having pKa values of no less than about 0.9 which can be hydrolyzed to the free carboxylic acid on contact with moisture. The invention also relates to the use of these multicomponent mixtures as an aerobic adhesive system, more particularly in the form of a one-component adhesive packed in storable form, and to their use for surface coating or for the production of plastic moldings.
Patent DE-3830344-A1 (DE)
Title: Process and apparatus for waste water purification
Inventor: REINHARD ERNST
IPC: B01D33/35
Filed: 1988-09-07
Abstract: An apparatus used in an industrial enterprise for waste water purification of waste waters containing four different impurities includes four coarse separators (9, 12, 13, 14), into which the respective waste water delivered in a container (15) is pumped separately via a line (16) or is pumped out of a pump shaft (8) introduced into the ground, in the case of the wash water from the works garage situated adjacently on the same level. From each coarse separator (9, 12, 13, 14), the respective waste water passes into a buffer tank (11, 18, 20, 22). From there, by means of pumps in a defined sequence, a differing quantity of each waste water calculated in advance is pumped into the treatment vessel (28) of an emulsion breaking unit (29) and mixed with a running stirrer. The natural pH shift occurs and the mixture is neutralised to the desired optimum pH by addition of acid or alkali and a first flocculation occurs by addition of a flocculant. The waste water mixture is then passed into an adjacent belt filter unit (31), filtered and collected in a receiving vessel (32) of this unit. From this container (32), the waste water mixture again passes into the treatment vessel (28) of the emulsion breaking unit (29) for a second flocculation by a repeated addition of flocculant. A second filtration is then performed via the belt filter (36) of the emulsion breaking unit ... Original abstract incomplete. <IMAGE>
Patent DE-3834221-A1 (DE)
Title: Magnetic head and process for its production
Inventor: NAKAMURA TOKUO
IPC: G11B5/187
Filed: 1988-10-07
Abstract: A magnetic head, which is provided at the butting faces (11a) of a pair of half-cores (11) with metal magnetic layers (14), comprises a monocrystal ferrite for forming the surface regions of the half-cores (11) coming into contact with a magnetic medium and also a polycrystalline ferrite for forming the other regions of the half-cores (11), the thickness of the monocrystal ferrite being 60 mu m or less; in addition, the present invention also provides a process for producing the magnetic head. The magnetic head according to the invention has a high signal-to-noise ratio by virtue of the fact that the surface region of a core which comes into contact with a magnetic medium is formed by a monocrystal ferrite and the other region is formed by a polycrystalline ferrite, the influence of any noise generation being extremely small due to the presence of the very thin layers. <IMAGE>
Patent DE-3838717-A1 (DE)
Inventor: LANDI VINCENT R
IPC: C08L53/00
Filed: 1988-11-15
Abstract: A forming process for producing a hard shaped molded article comprising the steps of   (a) providing a moldable thermosetting composition comprising a polybutadiene or polyisoprene liquid resin having a molecular weight less than 5,000 and at least 50% by weight 1,2 addition; and a thermoplastic elastomer comprising a first block copolymer having the formula Xm(YX)n or  &lparstr& <Y>X &rparstr& n where Y is a polybutadiene or polyisoprene block having less than 50% by weight 1,2 addition, X is a thermoplastic block, and m and n represent the average block numbers in said copolymer, m being 0 or 1 and n being at least 1; (b) forming said composition into a shape, said thermoplastic elastomer enabling said composition to maintain said shape during said forming process, said liquid resin enabling the viscosity of said composition to be sufficiently low that said shape is readily formed; and (c) curing said composition to produce said article including subjecting said composition to a high temperature cure condition at a temperature greater than about 250 DEG  C and less than the decomposition temperature of said composition.   The composition used in the process can also include one or more dielectric fillers. The invention includes articles produced by this process.
Patent DE-3839656-A1 (DE)
Title: Housing for accommodating withdrawable units or the like
Inventor: RAPP HORST
IPC: H05K5/00
Filed: 1988-11-24
Abstract: A housing for accommodating electronic, electrical, electromechanical or similar components or component groups which are constructed as withdrawable units or the like is provided with supporting feet which can be telescoped on both sides of a front side extending essentially over the entire housing width and make it possible for the housing to be positioned in an inclined manner within predetermined limits. The supporting feed can be connected to one another by means of a bracket, and the telescopic guides which accommodate said supporting feet are articulated on the housing such that they can pivot, so that pivoting of the supporting feet, with the bracket, takes place from a support position on the lower side into a carrying position in front of the front side, and vice versa.
Patent DE-3839689-A1 (DE)
Title: Hydraulic pump unit
Inventor: PICKEL RUDOLF
IPC: F04B17/03
Filed: 1988-11-24
Abstract: The hydraulic pump unit (1) has an electric drive motor (12), a casing (2), an oil tank and at least one pump (23) driven by the drive motor, the electric drive motor being fastened in the casing in a detachable and replaceable manner, and the casing interior (25) forming the oil tank. <IMAGE>
Patent DE-3900079-A1 (DE)
Title: Apparatus for removing material won by means of a rotating excavating tool
Inventor: ALTGAJER GERALD ING
IPC: E21D9/12
Filed: 1989-01-03
Abstract: In an apparatus for removing material won by means of a rotating excavating tool (5, 6) with little formation of dust, in which a conveying means (10) is provided on and connected to the boom (2) carrying the excavating tools (5, 6), the boom (2) has a delivery opening (11) on its top side facing the roof. Excavated material is discharged via the delivery opening (11) onto the conveyors (10) arranged in the boom (2). Here, the conveying means (10) arranged in the boom (2) are run to a discharge or transfer opening arranged close to the swivel centre (3) for the horizontal swivelling of the boom (2) at the boom underside facing the floor, the conveying means (10) being guided in the boom (2) between the delivery opening and the discharge opening in passages closed all round. <IMAGE>
Patent DE-3902656-A1 (DE)
Title: Hand-held drilling apparatus
Inventor: GANTNER GEBHARD
IPC: B25H1/00
Filed: 1989-01-30
Abstract: The hand-held drilling apparatus has a housing (1), a tool holder 2(2) for the fixture of a tool (3), and a damping device (6) which is arranged on the housing (1) and is intended to provide support on an underlying structure (18) possessing hollow chambers (18b). A supporting member (7) of the damping device (6) is mounted in a cylinder (8) fixed to the housing so as to be displaceable parallel to the tool axis along the length of the tool (3) projecting beyond the tool holder (2). In this case, the supporting member (7) is supported on the housing (1) in the displacement direction by means of a hydraulic medium (17) which can escape via outflow openings (11a). The damping device (6) prevents a jerky forward movement of the tool (3) upon entering a hollow chamber (18b) of the underlying structure (18). <IMAGE>
Patent DE-3915851-A1 (DE)
Title: Wooden stand for music - has sheet-support steplessly adjustable for height width and angle over wide range
Inventor: MANNHARDT ANDREAS ING GRAD
IPC: A47B19/00
Filed: 1989-05-16
Abstract: The music stand incorporates a sheet support steplessly adjustable for height, width and angle over a wide range.  It is in two parts rapidly and simply folded, all components being of wood.  The bottom frame can be formed by a hexagonal column (1) with central hole nd three supporting legs (3) screwed (2) to it. These are secured in position by tapering tongues and grooves.  They can be inverted so as to secure them at a wider and flatter angle. USE/ADVNATAGE - Wooden music stand combines.  Strength, stability and low cost.
Patent DE-3915863-A1 (DE)
Title: Wide concrete lined under ground channel - is produced by constructing two channels side-by-side
Inventor: STAUDINGER GUENTHER DIPL ING
IPC: E02D17/06
Filed: 1989-05-16
Abstract: The method is for constructing a relatively wide underground channel which has a concrete floor, walls and roof. A trench, with a width equal to half the width of the finished channel is first excavated. The sides of the trench are supported by cross struts (2,2',2''). The concrete floor is laid and the sides of the trench up to the lowest strut (2) are lined with concrete. The lowest strut (2) is removed and the trench walls fully lined with concrete and a cover set in place. A second  trench is then excavated alongside the first trench and the process repeated to produce a full width channel with a central dividing wall. USE - Construction of concrete lined underground channels.
Patent DE-3917035-A1 (DE)
Title: Sliding partner for joint endoprostheses and method of producing the sliding partners for joint endoprostheses
Inventor: ROTH WOLFGANG DR
IPC: A61L27/44
Filed: 1989-05-25
Abstract: The sliding partner for joint endoprostheses which are used in orthopaedics for joint replacement is produced from a biocompatible, crosslinked polyurethane of high strength. In order to reduce the friction and wear, a granular powder of a hard, crystalline bioceramic material is added to the polyurethane. The particle size of this biocompatible ceramic powder is in the range of 50-500  mu m, and it is present in the composite for the sliding partner to the extent of 10-80%. The technique or method of producing the sliding partner is chosen such that one of the surfaces of the crystals is in each case arranged on the surface of the joint part exposed to friction tangentially relative to the surface. <IMAGE>
Patent DE-3920534-A1 (DE)
Title: Nuclear waste container transfer unit - has equipment for direct transfer into ambient air cooled containers in concrete silos
Inventor: KUMPF HERMANN DIPL ING
IPC: G21F7/005
Filed: 1989-06-22
Abstract: A process for the transfer, under air lock conditions, of a container of spent nuclear fuel elements from a transport container into a ambient air cooled storage container in a concrete silo, consists of a spindle assembly to handle the container and a transfer machine to, simultaneously, remove the lids form containers and put them into an antichamber. Pref. a traveling crane is used to place the transport container onto the transfer machine. ADVANTAGE - An inexpensive implimentation of the transfer of spent nuclear fuel elements into silos.
Patent DE-3925489-A1 (DE)
Title: Board for displaying advertisements - has letters formed from markings on elements which can be rotated to display marking
Inventor: BRUHN OTTO
IPC: G09F9/37
Filed: 1989-08-01
Abstract: The board for displaying advertisements or information has rows of rectangular elements (5) arranged one above the other. Each element can be rotated through 180 deg. about a vertical axis (6) so that either a marked surface or a plain surface can be displayed. By rotating the elements (5) in the approp. positions the marked surfaces can form letters. The elements (5) are made of a ferromagnetic material and can be rotated about the axis (6) by magnets fitted behind the board. USE - Advertising display system.
Patent DE-3934865-A1 (DE)
Title: Picosecond pulses from semiconductor DFB modulated laser - has two junction pairs for separate or combined mode-coupled operation
Inventor: STEGMUELLER BERNHARD DR ING
IPC: H01S5/12
Filed: 1989-10-19
Abstract: A millimetric laser comprises two semiconductor junctions (1, 3, 2, 4), each formed in distributed feedback gratings of different constants (C1, C2). A central connection permits use of either or both junctions (11, 12, 13) and waveguides at the midplane (5, 6, 7) enable transmission and mode selection in either separate or combined modes. The selected modes can be controlled by the bias across the junctions and varying the refractive indices of the grating regions (3, 4). USE - Modulation over broad frequency band for prodn. of picosecond pulses.
Patent DE-3937126-A1 (DE)
Inventor: CHIU CHUNG-WAI DR
IPC: C12C11/06
Filed: 1989-11-08
Abstract: Dilute molasses solutions are generally acidified with the aid of sulphuric acid and then employed as nutrient medium for fermentations. However, used nutrient solutions lead on anaerobic methanisation, because of the sulphate content, to biogas containing hydrogen sulphide. It is now possible to acidify molasses solutions to an adequate extent with the aid of ion exchangers. These molasses solutions are comparable with customary molasses solutions in fermentations, and they produce an improved biogas in the methanisation. Preparation of acidified molasses solutions and their use in fermentation processes.
Patent DE-3941293-A1 (DE)
Title: Input voltage analogue to digital conversion method - using processor to compare input voltage with two other input reference voltages
Inventor: WOZNY MARGARETE DIPL ING
IPC: H03M1/06
Filed: 1989-12-14
Abstract: The A/D converter inputs (12,11,10) connected through switch (15) and resistor (16) to the inverting input of the comparator (18). Non inverting input of comparator is connected to a reference voltage (13). A D type flip flop (21), clocked by input (14) and circuit (25), receives input from output of comparator (18). The outputs of D type (21) go to circuit (25) and comparator (18) (via inverting amp (19)). A processing circuit (25) comprises time registers (30-34), impulse counter (27) and processor (29). In partic., a high reference voltage (12) and a low reference voltage (11) each produce a specific number of counts from the processor circuit (25) with one then used with input voltage signal at terminal (10). ADVANTAGE - A/D converters less susceptible to component tolerances.e