baber/WOPTO huggingface dataset:
Patent DE-4007807-A1 (DE)
Inventor: MOELLER ERHARD PROF DR ING
IPC: H01Q17/00
Filed: 1990-03-12
Abstract: The wall element consists of at least n=2 or an even multiple of n surface segments (2, 3) whose dimensions (length and width) are greater than the wavelength of the radar radiation, with such a geometric arrangement with respect to one another and/or such a material property and an equivalent radar cross-sectional area of equal magnitude that the sum of the reflected powers of the radar signals of the surface segments (2, 3) over a specific time interval of an evaluated pulse sequence neutralise the reflected radar beams by means of interference or are below a limiting value.
Patent DE-4012781-A1 (DE)
Title: Carboxylic acid chloride prodn.
Inventor: KAHL THOMAS-MICHAEL DR
IPC: C07C51/60
Filed: 1990-04-21
Abstract: Carboxylic acid chlorides of formula R-CO-Cl (I) in which R = 1-30C alkyl, 2-30C alkenyl or 2-30C alkynyl, are prepd. from carboxylic acids R-COOH (II) and phosgene COCl2 (III) in the presence of a catalyst adduct of phosgene and N-N-disubstd. formamides of formula R1R2NCHO (IV), in which R1 and R2 = 1-3C alkyl or R1 and R2 may together = a 4C or 5C alkylene chain which may be interrupted by an O atom or an N atom carrying a 1-3C alkyl or CHO gp., in which the (IV) is laden with 20-70 mol.% phosgene, and the (I) is recovered by phase sepn.
Patent DE-4014792-A1 (DE)
Title: Electric radiation light with exchangeable reflector - has coupling surface of housing accepting auxiliary part and with arresters on inner surface
IPC: F21V17/06
Filed: 1990-05-09
Abstract: The light housing (2) includes the electric function part with the receiver of the lamp plug socket, and an additional part (4) including the reflector. Contacts (6) are aligned on the coupling surface (5) of the housing (2). Arresters (7) are held behind the coupling surface (5) which has gaps (9) for the arresters of the additional part (4) with a corresp. surface (13) for adjoining the coupling surface (5) penetrated by axial spring contact pins (14) of the socket (1). ADVANTAGE - Change of reflector can be carried out very simply, accurately and reliably. More reliable positioning of the reflector and good contact between socket and contacts.
Patent DE-4015143-A1 (DE)
Title: Continuous double steel band press - runs bands over driven drums which are covered with steel plates bonded to outer surface sheets of high friction lining material
IPC: B30B5/06
Filed: 1990-05-11
Abstract: A continuous press for the production of  chipboards, fiora boards, laminates etc. has end less steel bands passing over driver drums, the surfaces of which have a high friction covering. These coverings consist of coated plates resembling tiles, with thin joints between them, each plate having a metal sheet carrier and a top covering made of a material conventionally used for clutch linings  and/or brake linings. The figure shows the cross-section of one plate. It consists of the sheet metal carrier plates (8) and the high friction covering (9) on top. The butting edges of the frictional plates are at right angles to the surface of the drum round which they pass so that the joints between plates are very narrow. The carriers (8) are e.g. 4 mm thick; their coatings (9) are resin or rubber with  abrasion resistant filler. ADVANTAGE - The coverings have a long service life so that the press can run for long periods of production.
Patent DE-4021048-A1 (DE)
Title: Solvent mixt. for aromatic poly-1,3,4-oxadiazole(s) - comprises soln. of aluminium chloride or tri:fluoromethane-sulphonic acid in nitroalkane and=or nitro-aromatic cpd.
Inventor: SCHULZ BURKHARD DR
IPC: C08J3/09
Filed: 1990-06-29
Abstract: A solvent mixt. (I) for aromatic poly-(1,3,4-oxadiazoles) (II) is claimed consisting of a soln. of 0.1-50 wt.% AlCl3 (III) or 10-25 wt.% CF3SO3H (IV) in nitro-alkane(s) and/or nitro-aromatic(s) or a mixt. thereof with chlorinated or aromatic hydrocarbon. Aslo claimed is a process for dissolving (II), by treating the polymer with a mixt. contg. 2-20 mols. (III) or (IV) per mol. oxadiazole units and the nitro cpds. etc., for 2 mins.-20 hrs. at 15-50 deg.C with moderate stirring. The solvent contains the amts. of components as above, with 1-70 vol.% nitro cpds. Pref. nitro-alkane is nitro-methane, -ethane or -propane, and pref. nitro-aromatic is nitrobenzene. USE/ADVANTAGE - Solvent mixt. which enables (II) to be processed e.g. as thermally-sable fibres, film or membranes, simply, safely and economically, without degradation of the polymer in storage or processing (contrast prior-art strong acid solvents); (I) can also be recovered easily.
Patent DE-4021247-A1 (DE)
Title: Ski binding for back of ski boot sole - consists of elastic flexible tongue on base with pressure lug
Inventor: BRISCHOUX JEAN-CLAUDE
IPC: A63C9/085
Filed: 1990-07-04
Abstract: The ski binding for holding the back of a ski-boot (2) on a ski (1) consists of a base (3) fixed to the ski (1), and a sole-holder (4) which moves on the top part of the base. The sole-holder (4) is pre-stressed by an elastic, flexible tongue (8) positioned in front of the base and supported on the base front. The top end of the elastic tongue is tensioned in a top wall (4d) of the sole-holder (4). The back side of the elastic tongue a touches a front, top support surface forming a pressure-lug (3c) on the base. USE/ADVANTAGE - The flexible tongue progressively bends when the ski-boot sole-holder is lifted from its bottom locking position.
Patent DE-4021257-A1 (DE)
Title: Drawer installed underneath aquarium - rests on support plate of underneath structure, and runs along guides, and has front, two spaced apart sides, base and shelves
Inventor: BUSCHKE KARLHEINZ
IPC: A47B88/42
Filed: 1990-07-04
Abstract: The drawer for the underneath unit (2) on a support-plate (3) of an aquarium (1) has a front panel (12) on which are holders for objects or utensils. The drawer runs along guides (40) at right angles to the front surface or to a side (6) of the underneath structure (2). At least one wall (11) extends at right angles to the front (12) and is fixed to the front (12), and has storage shelves (14) for the objects. Two walls (11) spaced apart on the front (12) have outer surfaces on which are the storage shelves (14) and have an intermediate support (8) between them positioned between the facing surfaces of the base (5) and the support plate (3) of the underneath structure (2). USE/ADVANTAGE - The drawer contains useful aquarium utensils, medicines, nets etc easily accessible.
Patent DE-4027284-A1 (DE)
Title: Microorganism treatment of soil extracts or liq. samples - by enriching sample with anions or cations in test series, adding microorganism-contg. soln. and measuring deviation from neutrality
Inventor: CLEMENS HUBERT
IPC: B09C1/10
Filed: 1990-08-29
Abstract: In the analysis and elimination of perturbations and imbalances.in soils and liqs. using microorganisms, the novelty comprises taking a sample of the liq. or obtaining an extract of the sampled soil to be neutralised, enriching the sample or extract with anions or cations in test series, adding microorganism-contg. solns. and, after a certain time, measuring the deviation from neutrality. ADVANTAGE - The process allows simple analysis and elimination of the effects of contamination, pH variation and the like on the compsn. of soils and waters and is suitable for large scale neutralisation.
Patent DE-4031311-A1 (DE)
Title: Method of measuring position and orientation of surfaces - uses illumination by light diffracted by holographic optical element, electronic imaging and evaluation
Inventor: LESEBERG DETLEF
IPC: G01B11/24
Filed: 1990-10-04
Abstract: The method of measuring the positions and orientations of surfaces involves illuminating the article with light diffracted by a holographic-optical element, taking electronic images from a camera, converting them electronically and feeding the results into a computer which derives the positions and orientations. The image is evaluated using comparison with threshold values. The three-dimensional structure of the illuminating light produces images which contain only isolated regions following evaluation. The surface positions and orientations are derived from the lateral positions of these surfaces. USE/ADVANTAGE - The method and arrangement enable positive measurement of location and orientation of object surfaces over a wide spatial range using a compact unit and simple algorithms.
Patent DE-4032736-A1 (DE)
Title: Nuclear reactor foundation cooling system - for collecting and water cooling core melt
Inventor: ALSMEYER HANS DR
IPC: G21C9/016
Filed: 1990-10-15
Abstract: A cooling system, includes (a) a collection tank e.g. of steel, which is supported above the foundation by props and which is located below the reactor pressure vessel and its surrounding biological shield; (b) tank openings which are covered by a protective or sacrificial layer, e.g. of concrete, in the tank; and (c) a water-floodable space between the tank (11) and the foundations. Tubes or extensions (15) of material with preselected melting temp., are inserted in the tank openings (14) and extend upwardly at least partially into the sacrificial layer (12). ADVANTAGE - The collection vessel bottom plate remains intact on melting of the sacrificial layer since water can enter before the layer is completely melted. Water entry is controlled so that flooding is not initiated by small coolant leakage incidents.
Patent DE-4039294-A1 (DE)
Title: Bleaching cellulose fibre pulp - using chlorine di:oxide then with ozone without intermediate washing
Inventor: BOSENIUS CHARLOTTE
IPC: D21C9/14
Filed: 1990-12-09
Abstract: In prepn. of chemical pulp, cellulose fibre pulp is continuously fed to bleaching line and bleached in one and same stage firstly by ClO2 and secondly by O3, ClO2 and O3 being added at points sepd. from one another and each at at least one place in the line, this stage being free from intermediate washing between places for addn. of ClO2 and O3. ADVANTAGE - Adsorbable organic halogen (AOX) is decreased, bleaching effect is improved, usef of Cl2 and ClO2 is reduced, bleached pulp has required brightness and strength.
Patent DE-4042187-A1 (DE)
Title: Controlling energy characteristics of power presses - with energy transfer from intensifier to crankshaft on downstroke and from ram to intensifier on upstroke
Inventor: PETTER WIELAND DR ING
IPC: B30B15/00
Filed: 1990-12-29
Abstract: In a conventional power press drive energy is normally lost in the form of heat emitted by the clutch and brake during the press working cycle. The invention seeks to avoid this by the use of an intensifier consisting of a stepped piston (29) moving in cylinder (30) mounted on the press frame (32). Above the piston is air under pressure controlled by valve (31) and below it is oil which can flow back to the high pressure side of the intensifier. The rod (28) of the intensifier piston is connected by link (27) to freewheel (26) which drives the crankshaft when the rod moves downwards. Cylinders (19) fastened to the press frame on each side of the press ram have pistons (18) driven upwards by the ram and thus forcing oil from the upper chambers of the cylinders into the high pressure chamber (20) of the intensifier. At the start of the press cycle, energy stored in the intensifier is released to accelerate the crankshaft by means of the freewheel (26). On the upstroke energy is returned to the intensifier through the movement of pistons (18) attached to the press ram. USE/ADVANTAGE - Press with reduced wear of clutch and brake.  More efficient energy usage. Reduced noise.
Patent DE-4101275-A1 (DE)
Title: Soldering and positioning tool for electronic SMD components - uses hot air supply applied to solder bumps by jet-like gap(s)
Inventor: MARTIN BERNHARD DIPL ING
IPC: H05K13/04
Filed: 1991-01-17
Abstract: A soldering and positioning tool for SMD components has a housing (2) contg. a receiving part (1) for receiving components and a unit (3) for driving hot air to the humps (7) of the components (4) via at least one nozzle (15). The reciving part (1) is shaped as a frame surrounding the component (4). Holders (23) are provided to hold mechanically the components (4) firmly in place. ADVANTAGE - Less expensive and simple to handle.
Patent DE-4101615-A1 (DE)
Title: Automatic whole-sale system with stacked storage of goods - uses air nozzles to discharge individual items
Inventor: SITTINGER WERNER
IPC: B65G47/10
Filed: 1991-01-21
Abstract: The automatic wholesaling unit has at least one magazine (2) for the stacked storage of goods (1) which are discharged individually by an ejector mechanism in the form of air nozzles (3, 4) provided at one end of the stack. At least one of the air nozzles is directed against the stack in the longitudinal direction whilst at least one further nozzle (3) is directed towards the discharge opening (6) on the stack across the longitudinal direction of the stack onto the article (1) located in front of the discharge opening (6). The magazine is preferably mounted inclined to the side of the discharge opening (6). ADVANTAGE - The discharge system is extremely cost-effective and maintenance free.
Patent DE-4103561-A1 (DE)
Title: Rotary position sensor for detecting rotor position - uses magnetic field sensor providing AC signal during rotor rotation
Inventor: SCHMIDER FRITZ
IPC: G01P3/487
Filed: 1991-02-06
Abstract: The position sensor uses at least one magnetic field sensor (23) in the magnetic circuit between the multi-pole permanent magnet rotor (10) and soft magnetic elements associated with the stator (20) or both the stator and the rotor (10). The soft magnetic elements have teeth at equal spacings, arranged in peripheral groups with equi-distant intermediate gaps, with the rotor and stator teeth offset form one another by a half division. Pref. a permanent magnet ring (14) encloses a cylindrical air-gap and is axially magnetised with a pole ring disc (13, 15) of a magnetically conductive material at each end face provided with equi-distant peripheral teeth offset by half the tooth division. USE - For detecting rotor position of relatively small electric motor.
Patent DE-4106049-A1 (DE)
Title: Installation for heat treatment of hollow cylindrical metal bodies - assembled in situ and adjusted to inside dia. of such bodies
Inventor: STROEER KURT DIPL ING
IPC: C21D9/50
Filed: 1991-02-22
Abstract: Installation for heat treatment of hollow cylindrical metal bodies consists of a heating device on a carrier structure which can be assembled and fixed into the inner space of such bodies. The carrier structure consists of a central inner ring, a number of bracing bars and ring segments provided with elastic insulating elements. The ring segments have bores for accommodating insulated rods mounted onto a clamping ring and carrying heating coils and elastic insulation. The individual ring segments with the central inner ring and the bracing bars are brought into the drum and assembled (together with the elastic insulating elements) into the clamping structure in the drum region to be annealed. The insulated rods are inserted into the bores. The heating coils are placed onto these rods, and the insulation is placed between the coils and the drum wall. Finally the rods are installed into the clamping ring. Dismantling of the installation takes place in reversed order of the steps described above. USE/ADVANTAGE - The invention can be used, in partic., for annealing of hollow cylindrical bodies of welded construction. The main advantage of the installation over hitherto known equipment is that it can be simply assembled and dismantled in relatively small spaces, and that it can be adjusted to various drum inner dias.
Patent DE-4107907-A1 (DE)
Title: Colour video facsimile transmission and print-out system including personal computer - combines basic functions of image management, data transfer and colour printing in single comprehensive control program
Inventor: WEHL WOLFGANG DR ING
IPC: H04N1/00
Filed: 1991-03-12
Abstract: The microcomputer (1) with an MS-DOS operating system, frame-grabber extension board, and mouse controller (2) is connected to a video camera (3), a monitor (4) and an ink jet printer (6) having a resoln. of 300 dots per inch. A modem (5) converts the digitised video signal into audio for transmission over telephone lines to distant receivers. The control program is structured to manage image storage and display, receiver selection and data companding, and printed picture contrast, brightness and colour saturation. ADVANTAGE - Colour video images can be sent workdwide over ordinary telephone lines and printed out by suitable receivers.
Patent DE-4109478-A1 (DE)
Title: Furniture plinth for cupboards, with frame - has at least two parallel lengthwise supports joined at ends by cross-struts
Inventor: MERKT MANFRED
IPC: A47B91/00
Filed: 1991-03-22
Abstract: The furniture plinth (1) for supporting and adjusting cupboards (2), tables etc consists of a frame made up of at least two profiled , parallel lengthwise support (3,4) joined at the ends (11,12) by cross-struts (6,7) at right angles to them. The cross-struts (6,7) and/or attachments (42) for the plinth-bar (30,31) stick out beyond the sides of at least one lengthwise support (3,4) to form a cable-duct (22). USE/ADVANTAGE - The furniture plinth is strong and non-tilting.
Patent DE-4109546-A1 (DE)
Title: Voltage tester for checking connection of conductor - ensures low voltage AC network phase has switchable threshold for compensating absence of earth line
Inventor: ARBERET SYLVESTRE
IPC: G01R19/155
Filed: 1991-03-22
Abstract: The hand-held electrical voltage tester has a resistive chain (10) between a contact tip (2) and an internal earth (M). The internal earth is earthed either via a back impedance or a free earthed line (7) connected to the tester plug (6). A detector circuit (15) with a threshold has a visual (4) and/or acoustic (23) indicator and an input connected between a node (10a) of the resistive chain and earth (M). The threshold level can be switched to compensate for the damping at the input of the detector circuit in the absence of the earthed line caused by the back impedance. USE/ADVANTAGE - For testing whether conducting part is connected to low voltage a.c. network phase. Flexible arrangement eliminating ambiguities caused by sensitivity errors.
Patent DE-4109700-A1 (DE)
Title: Drum coating appts. producing photoreceptor drum - moves drum by jets for pressurised medium e.g. compressed air for applying photosensitive layer for use in electrophotographic copier
Inventor: NAKANO NAKAYA
IPC: B05C13/02
Filed: 1991-03-23
Abstract: The appts. holds slides and guides drums for coating with a photosensitive soln. The assembly (3,4,5) to guide the drum has an outlet for a pressurised medium spaced at a distance around the circumference of the drum (1). This outlet consists of at least two nozzles (3) distributed at equal angles around the drum, ideally three or four.  The i.d. of one nozzle is in the range 1 to 10mm. The pressurised medium is gas or a gaseous mixt., pref. compressed air. The coating unit proper (2) is a circular arrangement, the coating soln. opening (5) being directed to the centre of the circle. ADVANTAGE - Surface of drum not touched and therefore protected from scratches.
Patent DE-4120668-A1 (DE)
Title: Tandem master cylinder for vehicle hydraulic braking system - has guide bush for primaryd piston with balancing channels and grooves with sealing lips and seals
Inventor: VOGLER GERHARD
IPC: B60T11/236
Filed: 1991-06-22
Abstract: The cylinder has a guide bush (6) for the prim. piston (8) which also contains balancing channels (20,21) and grooves (26) in front of the sealing lips (25) as connecting channels. These carry the seals (9,10) for the prim. piston. The prim. piston has longitudinal grooves (19) which connect the pressure chamber (5) with the channels (4,20,21,26). This is provided with a spring (11) acting on the sec. piston (14) via a spring plate (12) adjustable by means of a retaining pin (13). ADVANTAGE - Simple construction which saves on weight and reduces length, and also allows the easy adjustment of the sec. piston.
Patent DE-4121037-A1 (DE)
Title: Tool for opening or closing boiler drain valve - consists of revolving wheel with star-shaped opening and radial rectangular cut out to fit adaptor and valve connector
Inventor: JUNGMANN MARTIN
IPC: B25B13/48
Filed: 1991-06-26
Abstract: The tool for loosening or tightening a boiler drain valve (9) consists of a revolving wheel (1) with a central opening (3) for the insertion of an adjusting ring which is eccentric with regard to the axis of the wheel (1). The opening (3) has a star shaped contour (12) to correspond with the outer contour of the adjusting ring. An adaptor (5) with a rectangular cutout (6) is inserted in the opening (3) which has a radial extension cutout (7) and a rectangular connector (8) on the valve (9) fits into these cutouts (6, 7). USE/ADVANTAGE - In restricted conditions a simple and sure means of opening or closing the broken drain valve and needing no great strength.
Patent DE-4121615-A1 (DE)
Title: Fuel injection device for IC engine - has mechanical timing element to maintain time interval between pre-injection and main injection
Inventor: HOFMANN KARL DIPL ING
IPC: F02M45/04
Filed: 1991-06-29
Abstract: The device has an injection nozzle, supplied with a full volume by a pump via a pressure line. A small part of this volume is for preinjecting the larger part for later main injection. There is a control device for injection timing. The control device (5) has an associated mechanical time function element (3) of a set constant phase time. It is started up when the preinjection begins, and prevents main injection, while it is running. The element is formed by a mass spring system, and is moved into initial position before the injection phase, by part of the fuel supplied by the pump.
Patent DE-4124269-A1 (DE)
Inventor: OH SEON JU
IPC: H01L23/495
Filed: 1991-07-22
Abstract: The lead frame comprises a die pad 11 an which is mounted a semiconductor chip 12. The pad is connected by a lead 13 to a common bar 15. At least one side-lead 14, terminating in a connector 14a is also attached to the common bar. The length L12 of the side-lead is such that it extends as far as the nearest part of the pad preferably up to or beyond a line level with the furthest part of the pad. This protects the pad from sideways movement during encapsulation, which could otherwise damage the wire interconnection between the pad and side-leads. <IMAGE>
Patent DE-4125352-A1 (DE)
Title: Neuronal image processing emphasising and restoring distorted image segments - comparing initial full condition of gray value quanta at each raster point with varying threshold value
Inventor: SCHULZE RAINER DR ING
IPC: G06T5/00
Filed: 1991-07-31
Abstract: Image processing begins with the input waiting line (2) belonging to each point of the raster field (1) being loaded with the grey value of the raster image as appropriate to each raster point. At the start of the process a threshold value is applied to each raster point for comparison with the filled state of the input waiting line. The output waiting lines receive an initial filled state and an admittance value relative to the raster points. For initiation, at the start of the process, each raster point is represented by a specific signal value.
Patent DE-4125840-A1 (DE)
Title: Application device for fitting splice protector on light conductor - comprises matrix and trough for accommodating splice protector
Inventor: QUAPIL OLAF
IPC: G02B6/44
Filed: 1991-08-03
Abstract: The device consists of a matrix (Ma) which contains a trough for accommodation of a splice protector and its receptacle. It incorporates a stamp (St) which has several jaws. These jaws are so formed that, when the device is closed, they come into engagement one after the other with the appropriate points of the splice protection and its receptacle.