baber/WOPTO huggingface dataset:
Patent DE-3900377-A1 (DE)
Title: Adaptable film display system for schools, training and further education, particularly for group work
Inventor: LANG RUDOLF
IPC: G09B1/02
Filed: 1989-01-09
Abstract: The aim of the system is to facilitate work in the field of education and to make cost savings in : a) procurement of notice-boards and display boards; b) routine equipment: large sheets of paper, cards of various shapes, sizes and colours, pins, glue; c) transport back and forth in external training; d) photographing the finished work; e) classroom and storeroom; f) time for removing and gluing the attached cards, removal, collection, packing and transportation of the finished work to the photographer. The adaptable film display system includes: a) A4 carrier films; b) preprinted film elements of various shapes and sizes, lined on A4 cardboard, for writing on with felt-tip pens, for colouring with film markers, detachable from cardboard support, for applying to carrier film, transferring or replacing with other film elements, projectable with daylight projector, capable of being copied onto paper. Teaching work in schools, training and further education, particularly for group work; in work discussions, problem-solving meetings, conferences. Drawing: a) display by list following brainstorming session; b) same film elements arranged in a different way, one film element replaced; c) two elements have been added. <IMAGE>
Patent DE-3900888-A1 (DE)
Title: Radial piston machine
Inventor: DANTLGRABER JOERG
IPC: F04B49/12
Filed: 1989-01-13
Abstract: To adjust the stroke of a radial piston machine with a variable displacement volume, a piston with a large diameter is provided for one direction of adjustment and this is surrounded by four pistons with a small diameter for the other direction of stroke adjustment. By means of this arrangement, it is possible significantly to increase the adjustment stroke. The driving coupling between the cylinder block and the shaft is provided by positive connections of an intermediate plate which is arranged axially next to the cylinder block, between the eccentric ring and the shaft. A rotary lead through is provided on the opposite side of the pump piston for the supply and draining of working medium for adjustment of the stroke.
Patent DE-3907855-A1 (DE)
Inventor: HEIDRICH GUENTHER
IPC: F16D3/72
Filed: 1989-03-10
Abstract: A flexible elastic coupling component is proposed consisting of two diaphragm discs interconnected at their outer radial peripheral region and at least on connector welded to the inner radial periphery of one of these diaphragm discs. The periphery surfaces of the connector which are radially directed inwards in the radially inner peripheral region and the appropriate diaphragm disc are flush. The space between the diaphragm discs may be filled with elastomer. In the manufacture of a coupling component, the diaphragm discs and at least one connector are first put together and the material regions forming the insertion surfaces are subsequently removed.
Patent DE-3908512-A1 (DE)
Title: Fan
Inventor: GRAF BERND
IPC: F24F8/125
Filed: 1989-03-15
Abstract: Fan, preferably wall fan, whose impeller is arranged in a housing which exhibits an air inlet and an air outlet. The fan exhibits a lamellar closure and an electric heating device is arranged downstream thereof.
Patent DE-3921584-A1 (DE)
Inventor: THOERNER HANS-HEINZ DIPL ING
IPC: B65D65/46
Filed: 1989-06-30
Abstract: A package for food products having an outer part and an inner part of the packaging. The inner part of the packaging has at least one shaping for receiving the product. Said inner part consists of a food, at least insofar as it comes into contact with the product.
Patent DE-3922238-A1 (DE)
Title: Intercommunication arrangement between electronic circuit boards - has back plane system with communication bus and separate power system
Inventor: MAIER KLAUS DIPL ING
IPC: H05K7/14
Filed: 1989-07-06
Abstract: A number of electronic circuit boards (BG) is edge-mounted onto a motherboard (VLP) that provides an interconnection facility. The top surface of the motherboard has bus communication lines (BSL) terminated by resistors (R). A rear board plane has power supply lines (+UB,OV-B). Each single board (BG) has an edge connector (St) that engages with sockets. Bus connector regions (BB) are formed on the boards and have transmitter/receiver elements (SE) with constant current supplies (KQ). ADVANTAGE - High speed information transmission with min. interference.
Patent DE-3934111-A1 (DE)
Inventor: TAKAHASHI TERUHISA
IPC: B32B15/01
Filed: 1989-10-12
Abstract: A steel product (or copper-plated steel product) with heat-resistant, corrosion-resistant plating layers which are composed of a 0.2-10  mu m thick nickel plating layer formed on said steel product, Zn-Ni alloy plating layer formed on said nickel plating layer, and a chromate film formed on said Zn-Ni alloy plating layer.
Patent DE-3935853-A1 (DE)
Title: Key operated cylinder lock - has locking pin holes in lock housing of different depths
Inventor: NUESSE MICHAEL
IPC: E05B27/04
Filed: 1989-10-27
Abstract: The cylinder lock has a cylinder (3) which can be rotated in the housing (1) by the key in order to open the lock. The cylinder is prevented from rotating relative to the housing by pins which engage holes in the cylinder and in the housing. To prevent the lock from being opened without a key, by retaining the cylinder pins in the radial holes in the cylinder, the invention proposes making the holes in the lock housing of different depths.
Patent DE-3938016-A1 (DE)
Title: N-vinyl acetamide purificn. to remove acet-amide by extn. - with aromatic hydrocarbon and conc. aq. salt soln. and use in polymer and poly-vinyl:amine prodn.
Inventor: LAI TA-WANG
IPC: C08F2/10
Filed: 1989-11-15
Abstract: Purificn. of N-vinylacetamide (I) contaminated with acetamide (II) is carried out by (a) extracting impure (I) with an aromatic hydrocarbon solvent (III) to give a soln. of (I) and a smaller amt. of (II) in (III), (b) contacting this soln. with a conc. aq. salt soln. (IV), and (c) sepg. the phases to give a purer (I)/(III) soln. Pref. (III) is benzene, toluene, xylene or ethylbenzene. (IV) contains NaCl, KCl, MgCl2 or CaCl2 and pref. is satd. In particular, (III) is toluene and (IV) is brine. The impure (I) is obtd. by condensation of (II) and acetaldehyde to ethylidene-bis-acetamide (VI), followed by pyrolysis. USE/ADVANTAGE - The (I) obtd. is pure enough for polymerisation and is claimed for use in the prodn. of poly(N-vinylacetamide) (V) by polymerisation in the aq. soln., either as soln. or emulsion in oil, and (V) is claimed for use in the prodn. of poly(vinylamine) by hydrolysing the amido gps. to amino gps. or amine salts.
Patent DE-3938273-A1 (DE)
Title: Multi-core high voltage cable - has separate cores wrapped in insulation with space filled with isolating gas
Inventor: HOVE CORNELIUS VAN DIPL ING
IPC: H02G1/06
Filed: 1989-11-17
Abstract: The single cable cores (1, 2, 3) are coupled together in a single bundle. Each core element has a conductor wire (4) covered by an inner layer (5) and this is embedded within an insulation (6) that is of a recinforced polyethylene. This has a thickness of 10-12 mm and is covered by an outer extruded conductive layer (7) and a screening (8) of copper wire. Three such cable cores are bundled together within a wrapped tape, e.g. PTFE. The complete assembly is then used with a protective outer tube of plastic or metal, with the clearance space fitted with an insulating gas. ADVANTAGE - Multi-core cable for medium-high voltage.
Patent DE-4004111-A1 (DE)
Title: Removing accompanying material from flat textiles - threads or animal hair by treatment with supercritical fluid
Inventor: KNITTEL DIERK
IPC: D06L1/00
Filed: 1990-02-10
Abstract: Textile flat goods, threads or animal hair are pre-treated with a supercritical fluid, to remove accompanying material. Pref treatemnt is for 0.5-60 (2-15) mins, at 8-250 (31-197 deg C and 30-300 bars, using as fluid alkanes, NH3, fluorochloro-alkanes, C02 and/or C0. Textile hair, esp raw wool, is treated with ethane, partic by passing the supercritical fluid through a pile of the hair, esp a press-cake. ADVANTAGE - The accompanying materials (I), eg emulsifiers or sixes, are removed by a quick method which is economical in energy and forms no waste water. Solubility of (I) in the fluid is high, and (I) are easily removed from the fluid and can be processed and/or re-used. The goods do not have to be dried.  Treatment of animal hair gives wool grease, for use in pharmacy and cosmetics. the fluid may be non-toxic; leakage does not then release poisonous substances into the atmos; any fluid adsorbed by the goods is easily removed by lowering the pressure or temp, or increasing the vol.
Patent DE-4006698-A1 (DE)
Title: Prodn. of cavities in concrete - by reusable core coated with crude montan wax
Inventor: HOFFMANN ERICH DIPL ING
IPC: E04G15/06
Filed: 1990-02-28
Abstract: Prefabricated and monolithic concrete elements can be made with cavities of straight or curved contours to save material and wt. or to accommodate electrical cables, switches or fixing components. To produce a curved channel, the core can be formed by a PVC insulated cable which has been coated by layers of crude montan wax. The wax is melted after the concrete has set and the cable can be extracted with ease. ADVANTAGE - This is a simple system in which the cores can be used repeatedly. The cavities can have straight or curved contours and varying cross-sections.
Patent DE-4009637-A1 (DE)
Title: Security device for casement window - consists of two overlapping ridges on rails fixed to moving and fixed frames of window
Inventor: SAELZER HEINRICH
IPC: E05C9/18
Filed: 1990-03-26
Abstract: The casement window frame (1) which is made of wood is mounted in a fixed frame (2) which is also made of wood. The casement window (1) is locked in the fixed frame (2) by a sliding bolt (4) which engages a rail (8) fixed to the moving part (1) of the window and a rail (5) which is fixed to the fixed frame (2). To prevent the bolt (4) from being operated from outside the window the rail (15) which is fixed to the moving part (1) and the rail (16) which is fixed to the fixed part (2) have overlapping ridges (17,18) which prevent the insertion of a tool from outside the window. USE - Security of casement windows.
Patent DE-4012141-A1 (DE)
Inventor: POLLERT GEORG DR
IPC: C10K1/06
Filed: 1990-04-14
Abstract: The invention concerns a process for precooling coke-oven gas and for desorbing coking water, e.g. washing waters and condensates, using hot coke-oven gas. The invention calls for (a) the raw gas cooled in the condenser directly to about water-vapour saturation temperature to be precooled preferably completely, but at least to the dew point of naphthalene between about 30 and 50  DEG C, in a counter flow arrangement with respect to the condensates which form, i.e. with the gas flowing from the bottom to the top, and (b) the waters to be desorbed are contacted in a counter flow arrangement with the raw gas between the condenser and the precooling outlet.
Patent DE-4012308-A1 (DE)
Inventor: DIETZE WERNER
IPC: A61G7/14
Filed: 1990-04-18
Abstract: PCT No. PCT/DE91/00317 Sec. 371 Date Oct. 6, 1992 Sec. 102(e) Date Oct. 6, 1992 PCT Filed Apr. 16, 1991 PCT Pub. No. WO91/16028 PCT Pub. Date Oct. 31, 1991.An apparatus for lifting or positioning a sick or handicapped person has a multiplicity of support elements for the person which are connected to a base by a positioning device. The positioning device is fitted with a lifting or pivot drive. The support elements are fastened to multi-hinge supporting arms, each with at least three hinges which are hinged to the positioning device and wherein at least two of the hinges are continuously lockable.
Patent DE-4013059-A1 (DE)
Title: Organo-poly:silane(s) for silicon-carbide fibres and ceramics prodn. - by reaction of organo-di:silane(s) with organo-mono:silane(s) in presence of alkali metal alkoxide catalyst
Inventor: KALCHAUER WILFRIED DIPL CHEM D
IPC: C08G77/58
Filed: 1990-04-24
Abstract: Organopolysilanes (I) are produced by reaction of a disilane of formula R3Si2(OR1)3 (II), opt. mixed with a cpd. of formula R6-nSi2(OR1)n (III), with cpd(s). of formula (R3)4-mSi( OR1)m (IV) in the presence of cpd(s). of formula MOR2 (V); R = H or hydrocarbyl; R1 = alkyl; R2, R3 = hydrocarbyl; M = alkali metal; n = 4, 5 or 6; m = 1, 2, 3 or 4. Pref. disilanes of formula (III) are used, pref. R2Si2(OR1)4; mol. ratio (II):(III) is (30:70)-(90:10); amt. of silane (IV) is 5-40 wt.% and amt. of catalyst is 0.03-2.5 wt.%, w.r.t. total disilane. USE/ADVANTAGE - (I) are useful for prodn. of SiC fibres and ceramics, photoresist coatings, etc. The claims include: (a) a process for the prodn. of SiC fibres by spinning (I), pref.  with addn. of a cpd. of formula R5O((R5O)2TiO)pTi(OR5)3 (with R5 = alkyl; p = 0-1000) and heating at 800-1400 deg.C under inert gas or vacuum and (b) a process for the prodn. of porous SiC ceramics, by mixing (I) with SiC powder, moulding and heating at 700-2200 deg.C under inert gas or vacuum. The invention provides a simple 1-stage process for the prodn. of (I) with mol.  wt. 1000-2000, contg. no Si-bonded halogen and with functional gps. as required.
Patent DE-4013422-A1 (DE)
Title: Illumination set=up for three-channel colour temp. measuring appts. - selects narrow separated spectral ranges using two narrow band filters and measures their energy content
Inventor: RAKITSCH PETER DIPL ING
IPC: G01J5/60
Filed: 1990-04-26
Abstract: Optics project light from the lamp onto a measuring spot. A balancing-out unit (10) separates cut two narrow close-lying spectral ranges from the beam. A measuring arrangement (19,-22) ascertains the energy content of both narrow ranges. Their energy relationship is determined by a quotient former (23). A comparison circuit (6) compares the expressed quotients with a stipulated value and delivers a regulating signal for the power supplied to the lamp (1) if deviations are found in order to maintain a constant colour temp. Pref. the spectral ranges lie on the upper and lower limits of the visible spectrum. They can be at 430 nm and 620 nm. The balancing-out unit can contain a beam splitter (12). The filters (15, 16) used can be interference type. The radiation energy can be converted to electrical signals by transducers (19, 20) pref. photodiodes. Amplifiers (21, 22) can be assigned to the latter and a digital circuit can be supplied by an a-d converter. USE - Holding colour temp. of halogen incandescent or glow lamp constant.
Patent DE-4013495-A1 (DE)
Inventor: EGGERS THIES
IPC: B65D71/72
Filed: 1990-04-27
Abstract: A cardboard tray for cylindrical packages has a bottom and rows of openings for receiving longitudinal rows of packages that extend parallel to the longitudinal edges of the bottom. The technical problem consists in reducing material consumption and optimizing space occupation within a stack, as well as in improving the functional value of the cardboard trays. Adjacent longitudinal rows of openings (3, 4) are mutually offset, the transverse edges of the bottom (11) follow a meandering line (9, 10) and the bottom has cut out, folded and linked marginal webs (18, 19).
Patent DE-4015108-A1 (DE)
Inventor: DAVIS STANLEY STEWART PROF
IPC: C09K23/00
Filed: 1990-05-11
Abstract: A stable active substance emulsion of the oil-in-water type with a phospholipid as emulsifier is described, wherein the active substance dissolved in the lipid phase has one or more basic groups, is hydrophobic and oil-soluble, and has a pKa of at least 7.5, the aqueous phase is adjusted to an acidic pH, and the disperse phase has, after dilution of the emulsion ready for administration to a fat content of 0.08 % by weight, a positive zeta potential of at least + 15, but preferably + 30 mV.
Patent DE-4015746-A1 (DE)
Title: Pressure modulator for vehicle antilocking hydraulic braking system - uses piston of magnetostrictive material enclosed by coil system controlling piston displacement
Inventor: ZAVISKA DALIBOR
IPC: B60T8/42
Filed: 1990-05-16
Abstract: The pressure modulator (5) uses a piston (8) for defining a chamber of variable vol. which is coupled to the wheel brakes (4). A blocking valve (6) separates the chamber (7) from the master braking cylinder (1). The piston (8) is made of a magnetostrictive material and is enclosed by a coil system (14) providing a magnetic field used to control the piston displacement. Pref. the piston has an attached operating rod (17) for the blocking valve (6). ADVANTAGE - Simplified operating drive.
Patent DE-4019417-A1 (DE)
Title: Positional drive torque adjustment and test arrangement - has frame for drive and bearing-mounted shaft, rigid and separating couplings, force arm and spring balance
Inventor: MAUEL CLEMENS
IPC: G01L3/14
Filed: 1990-06-19
Abstract: A positional drive element torque adjustment and test arrangement consists of a frame made from sections (1) for suspending the drive (3) and a bearing mounted, rotatable shaft (4). The shaft and drive are connected via a rigid coupling (5). The shaft is connected to the adjustment and test device via a separating coupling (6). The adjustment and test device consists of a force arm and a spring balance (8) with an indicator, both connected to the frame. USE/ADVANTAGE - E.g. for use with valve positional drives. The simple torque adjustment and test arrangement can be used with clockwise and anticlockwise rotating shafts.
Patent DE-4029389-A1 (DE)
Inventor: WEBER ALFRED DR
IPC: C12P17/18
Filed: 1990-09-13
Abstract: PCT No. PCT/DE91/00626 Sec. 371 Date Jul. 9, 1992 Sec. 102(e) Date Jul. 9, 1992 PCT Filed Aug. 1, 1991 PCT Pub. No. WO92/05269 PCT Pub. Date Apr. 2, 1992.A process for the production of  beta -carboline derivatives of general formula I   <IMAGE> (I)  in which X represents a hydrogen atom or a halogen atom, Y represents a carbon-oxygen bond or a methyl group, R1 represents an alkyl group with up to 6 carbon atoms and R2 represents an alkyl group with up to 4 carbon atoms, from 1,2,3,4-tetrahydro- beta -carboline derivatives of general formula II   <IMAGE> (II)  in which X, Y, R1 and R2 have the above-mentioned meaning, is described, which is characterized in that the 1,2,3,4-tetrahydro- beta -carboline derivatives are fermented with a fungi culture of genus Fusarium or Myrothecium.
Patent DE-4031132-A1 (DE)
Title: Digitally programmable hearing aid - has electronic switch operated by programmable memory for selective use of programming socket as alternative source of audio input
Inventor: SCHAEREN BEAT
IPC: H04R25/02
Filed: 1990-10-02
Abstract: The microphone (1) is connected to the earphone (3) by an audio amplifier circuit (2) subject to vol. and tone controls from a digitally programmable nonvolatile memory (4), which has a two-pin socket (5) for connection to an external programmer. A control line (7) from the memory (4) operates an electronic switch (6) which opens and closes a direct connection from the programming socket (5) to the amplifier (2).  The switching may be performed by special data signals to the gate of an FET. ADVANTAGE - Electrical signals can be connected from external sound sources directly to audio amplifier.
Patent DE-4031133-A1 (DE)
Title: Refrigerator or freezer cabinet - has door-mounted lamp in one of two compartments let into edges of door for interchangeable lamp and battery mounting
Inventor: KORDON ROLF ING GRAD
IPC: F25D27/00
Filed: 1990-10-02
Abstract: The frame (18) on the inside of the door has two recesses (20) set in mirror-image relationship to each other at the same level in its two vertical sections. One is near the hinges and the other is near the door handle. Each recess encloses a pair of resilient contacts (25) between which either the lamp (22) or its battery (23) can be gripped. The compartment contg. the battery is covered by the screen (21). USE/ADVANTAGE - The interior of the cabinet is illuminated without difficulty when full, and the door stop can be changed easily by the user.
Patent DE-4033390-A1 (DE)
Title: Electromagnetic energy prodn. from heat content of gas - has assistance of cyclically controlled gas pressure across distance between two capacitor plates and is altered cyclically to produce energy
IPC: H02N1/08
Filed: 1990-10-20
Abstract: The controlled gas pressure is led from a chamber across the valve and a diaphragm at which is connected one plate (P) of the two capacitor plates. The capacitor (C) is charged with the smallest distance lying between the two capacitor plates, the plates then experience an enlargement of the distance between them, against the attractive force of the charges, so as to increase their electrostatic potential. This energy with suitable means is supplied to a utilisation circuit as electromagnetic energy. The moving plate (P) of the capacitor is coupled with a close lying pressure transmitting diaphragm, which simultaneously takes over the function of an outlet valve, with the opening of an access to the gas outlet slits at the periphery of the diaphragm, during its lift and return phase. USE/ADVANTAGE - System for producing electromagnetic energy from heat content of gas. Simple principle and gives higher efficiency compared to conventional piston engines. No temps. occur which require special cooling leading to high losses of heat energy.
Patent DE-4034840-A1 (DE)
Inventor: SCHWADTKE KARL
IPC: C11D1/66
Filed: 1990-11-02
Abstract: Enzymatic detergents containing fatty alkyl sulphate and soap are more strongly stabilised by glycerine than by 1,2 propane diol. The soap consists of a mixture of salts of ethylenically unsaturated C12 to C18-fatty acids and saturated C12 ot C18-fatty acids in a proportion by weight of 3:1 to 1:3.
Patent DE-4036461-A1 (DE)
Title: Concrete paving slabs with projections on sides - enables slabs to be laid either bonded or in straight lines with half width of joint
Inventor: GEIGER PETER
IPC: E01C5/06
Filed: 1990-11-15
Abstract: Concrete paving slabs have a flat centre part with projections from the sides to form open joints when laid. They may be laid in a variety of different patterns. On a side (3) there is a pair of projections (5,6) forming a groove (7) between them at a distance from one corner (9), and a single projection (4) at a distance from the other corner equal to the distance of the centre of the groove (7) from its corner (9), forming a tongue. USE/ADVANTAGE - The slabs can be laid bonded with the opposite projections butting or in straight courses with the tongue fitting inside the groove and giving half the width of joint.
Patent DE-4040048-A1 (DE)
Title: Profiled stiffening insert for plastics - has section with holes or recesses for fitting into injection mould and shaped areas to guide polymer flow and also lock insert in prod.
Inventor: NILSSON ERIK
IPC: B29C37/00
Filed: 1990-12-14
Abstract: A profiled (e.g. metal) insert section for reinforcing plastic prods. has holes or recesses to allow it to be fitted into an injection mould and to enable the plastic material to lock the section in position as the material is injected into the holes/ recesses.  It also has guiding members which distribute the polymer over the section and guide some inwards so that it effectively locks the section.  The section is pref. cast aluminium. ADVANTAGE - The profile concerned effectively stiffens the end product.  It eases the production and distributes the encapsulating plastic material in the best possible way.