baber/WOPTO huggingface dataset:
Patent DE-3824488-A1 (DE)
Title: Process for the preparation of symmetrical dialkylureas
Inventor: LUETZOW DIETRICH DR
IPC: C07C273/18
Filed: 1988-07-20
Abstract: Symmetrical dialkylureas are obtained by reaction of carbon dioxide with excess monoalkylamines at elevated temperatures and pressures in a reaction zone and expelling a part of the unreacted starting substances and the water formed in the reaction by releasing the pressure of the reaction melt obtained in the reaction. The alkylamine alkylcarbamate contained in the reaction melt is then thermally decomposed into monoalkylamine and carbon dioxide, which are expelled from the melt together with further water vapour. The vapours expelled during the pressure release and thermal decomposition are condensed and treated with sodium hydroxide solution to recover monoalkylamine. According to the invention the vapours expelled during the pressure release are washed in a separating column with a part of the liquefied monoalkylamine contained in the vapours and liquefied at the top of the separating column. The other part of the liquefied, virtually CO2- and water-free monoalkylamine is fed back into the reaction zone.
Patent DE-3825248-A1 (DE)
Inventor: PETER SIEGFRIED PROF DR
IPC: C07C67/48
Filed: 1988-07-25
Abstract: A process for the preparation of monoglycerides and diglycerides from a mixture which contains mono-, di- and triglycerides by extraction with a supercritical extracting agent which includes special cosolvents is described. 
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Patent DE-3825371-A1 (DE)
Inventor: ISHIDO HIDEKI
IPC: B60T8/70
Filed: 1988-07-26
Abstract: An antilock braking system wherein brake pressure is reduced and rebuilt after each braking operation in response to an electric signal representative of wheel speed. The brake pressure is rebuilt, after the initial reduction, to a mean value between the maximum applied braking pressure and the brake pressure at which the wheel speed has subsequently become the lowest as a result of the initial attenuation. A similar rebuilding of the brake pressure may be repeated as required until the wheel acceleration drops to a predetermined degree, with the brake pressure rebuilt each time to a mean value between the maximum applied braking pressure and the value reached by the preceding rebuilding operation. When the wheel speed sufficiently drops, the brake pressure is maintained at a value that has been computed to provide a maximum coefficient of tire-road friction, thereby reducing the stopping distance to a minimum. <IMAGE>
Patent DE-3830254-A1 (DE)
Inventor: BAUER DIETER DIPL ING
IPC: B65G33/02
Filed: 1988-09-06
Abstract: The telescopic table of a shelf conveyor unit has a screw actuator consisting of a spindle (7) mounted rotatably in a first constructional part (4) and driveably by a rotary drive (5) and having a pitch variable along a helix (9) of the spindle, and at least one driver (14), having at least one sliding block (13) and engaging into a screw groove of the spindle (7), is connected firmly to a second constructional part (1). <IMAGE>
Patent DE-3830702-A1 (DE)
Title: Motorcycle
Inventor: GLAESER RUDOLF
IPC: B62J27/00
Filed: 1988-09-09
Abstract: The invention relates to a motorcycle having a vehicle frame having a frame part which is guided around the handlebar and which is in the form of an approximately U-shaped protection hoop which is connected to the rest of the frame via supports, and having a yoke hoop which can be used as a support for a front protection covering, which is provided if applicable, and is supported by means of a bridge on the steering head. In order to avoid the danger of rolling over in the event of a collision, two catching hooks (17, 18) are provided, which are arranged in the space in front of the yoke hoop (5) and above the protection hoop (2), point forwards in a curved shape and are connected to the yoke hoop and/or to the protection hoop. <IMAGE>
Patent DE-3832368-A1 (DE)
Title: Process for producing pressed hollow mouldings and hydraulic press
Inventor: WEGNER HEIKO
IPC: B30B11/04
Filed: 1988-09-23
Abstract: The invention relates to a process for producing hollow mouldings, such as refractory spouts, by pressing, and to a hydraulic press having an extendable mandrel. In particular in order to be able to produce different conicities and diameters, it is proposed that the mandrel be designed in two parts and be composed of a centrally extendable, conical or cylindrical upper punch mandrel (15), which corresponds to the bore (26) of the hollow moulding (10), and of the cylindrical or conical lower punch mandrel (20), it being possible to couple said mandrels to one another. <IMAGE>
Patent DE-3835700-A1 (DE)
Title: Arrangement and method for producing an image sensor
Inventor: KOENIG ULF DR ING
IPC: H01L27/146
Filed: 1988-10-20
Abstract: The invention relates to an arrangement and a method for producing image sensors. The photodiodes and associated amplifier circuits or read-out circuit are arranged such that MOS transistors are fixed in a first level in or on a high-resistance substrate and photodiodes are fixed in a second level. The MOS transistors are produced using conventional MOS technology. The semiconductor layers for the photodiodes are grown on the insulated electrical contacts and leads of the transistors using differential MBE.
Patent DE-3837327-A1 (DE)
Inventor: SCHOENFINGER KARL DR
IPC: C07D271/04
Filed: 1988-11-03
Abstract: Substituted 3-aminosydnonimines of the formula I   <IMAGE> (I)  and their pharmacologically acceptable acid addition salts, wherein R1 denotes, for example, alkyl having 1 to 8 C atoms, R2 denotes hydrogen or the radical -COR3 and R3 denotes, for example, an aliphatic radical having 1 to 4 C atoms, are prepared, for example, by cyclization of a compound of the formula II   <IMAGE> (II)  and if appropriate subsequent acylation and have useful pharmacological properties.
Patent DE-3843730-A1 (DE)
Title: Method and apparatus for controlling strip width during hot-strip rolling
Inventor: DORNA REINHOLD
IPC: B21B37/16
Filed: 1988-12-22
Abstract: The invention relates to a method and an apparatus for controlling strip width during hot-strip rolling on a multi-stand finishing group of a rolling train. In the method, the speeds of rotation of the work rolls of each stand are controlled as a function of the instantaneous operating state. The strip widths are recorded directly after the last reduction and/or before the penultimate reduction and compared with the desired width in a width controller. In the event of differences, a strip supply controller for the strip supply between the last stands is acted upon and this corrects the strip supply and the strip tension in such a way, by correction of the rotational speed of all the work rollers or adjustment of the rolling gaps, that the strip width changes. The method is optimised by additional control of the strip thickness by the novel strip-supply principle and by dispensing with some of the loop lifters (Fig. 3). <IMAGE>
Patent DE-3900088-A1 (DE)
Title: Method for operating a spinning machine and a monitoring device for this purpose
Inventor: ERNI MARKUS
IPC: B65H63/02
Filed: 1989-01-03
Abstract: A method and a device for operating a spinning machine having a multiplicity of spinning stations, for example a ring-spinning machine, a flyer or other types of spinning machine in which doffing operations occur, in which thread breaks are detected and subsequently rectified by means of respective thread stop motions provided at the individual spinning stations, and a doffing operation is carried out with full tubes, are characterised in that, during each doffing operation, a check is made as to whether all the thread stop motions which did not signal a thread break before the doffing signal a thread break during the doffing.
Patent DE-3904728-A1 (DE)
Title: Handle and method for its attachment to vessels
Inventor: BAUMGARTEN ROLF-GUENTER
IPC: A47J45/06
Filed: 1989-02-16
Abstract: The invention relates to a handle and a method for its attachment to vessels, for example on a saucepan (T), a kettle (K), a pan (P) and the like, and to an associated lid (D). The ends (14) of the handle are designed to be partly or completely spherical or are provided with balls (16). Their ball surfaces (26) are or will be spot-welded to the associated surfaces (12) on the saucepan or lid. The ends (14) of the handle can sit under prestress in recesses (18) in the balls (16) and can be fastened thereto or therein securely against rotation. The handle (10) preferably has at least one holding wire (20) which is elastically flexible at least on or near to its ends and which itself can form the handle. In the case of a holding wire (20) which is bent back on itself, for example in a hairpin shape, the fixing advantageously takes place by means of three balls (16), namely at the ends and in a region of curvature (28). <IMAGE>
Patent DE-3905768-A1 (DE)
Title: Gear change block esp. for vehicle transmission system - has selection roller with blocking recess engaged by blocking roller and release
Inventor: FREI WALTER
IPC: F16H59/04
Filed: 1989-02-24
Abstract: A selection lever can be moved longitudinally past a central null position between two selection positions. A selection roller in a sealed part of the selector housing interacts with one or more switches and performs the same pivotal motion as the lever. A blocking device which can be released by an electromagnet engages a recess in a blocking plate attached to the same pivot axis via a roller element in the blocking state. The selection roller (3) acts simultaneously as the blocking plate whereby its circumference carries selection cams (4) and the recess which interacts with the blocking roller (11).  The blocking recess is of length equal to the selection travel and is essentially symmetrical with the null position. USE/ADVANTAGE - Blocking arrangement prevents the lever from pivoting in longitudinal selection direction or from a valid selection position. Compatible with narrow gear selector housing design and smooth, delay-free and reliable selection.
Patent DE-3917684-A1 (DE)
Title: Coin-operated entertainments machine - has rotating symbol body controlled according to credit in credit counter and free-play counter
Inventor: GAUSELMANN PAUL
IPC: G07F17/32
Filed: 1989-05-31
Abstract: The games machine's rotary symbol body (5-7) is set in motion at the start of a game if a  credit counter contains a credit and is stopped at a position determined by a control unit (2) contg. a microcomputer with a random number generator. The body shows a win or loss symbol combination, a win being added into a coin or special play counter. The control unit checks the state of a free play credit counter, starting the symbol body and decrementing the counter if there is a credit. USE/ADVANTAGE - Increasing entertainment value and winnings of games machine.
Patent DE-3923789-A1 (DE)
Title: Electron beam welding unit providing improved welding quality - detects high voltage flash-over from deviations in beam current and temporarily deflects beam to erosion-resistant material
Inventor: SCHLENK WOLFGANG DIPL PHYS DR
IPC: B23K15/06
Filed: 1989-07-18
Abstract: Means for avoiding welding defects due to high voltage flash-over during electron beam welding of metallic workpieces, has the novelty that when a flash-over is detected in the beam generator, the electron beam is deflected to an erosion-resistant material (20), e.g. tungsten or molybdenum. Depending on the reestablished dielectric strength of the beam generator, the welding process is restarted immediately. The onset of the flash-over is deduced from the ideal/actual value deviations of the beam current, or from sililar deviations of the Wehnelt voltage or variation of the Wehnelt current. Several signals are combined together to detect the onset of the flash-over. ADVANTAGE - Welding quality is improved.
Patent DE-3925590-A1 (DE)
Title: Automatic filling of domestic bath - has programmable controller responding to level and temperature sensors to control valves
Inventor: BRUEGGEMANN ULRICH DIPL ING
IPC: G05D23/13
Filed: 1989-08-02
Abstract: An automatic control system (3) for filling a domestic bath to a set condition of temp. and level has one stage (1) for filling and a second (3) for coupling. Hot and cold valves (6,7) are coupled to a mixing stage deliver water, with a temp. sensor (10) providing an input to the controller. A pressure sensor (22) located in the outlet pipe (22) provides level feedback and a temp. sensor (23) similarly monitors actual conditions in the bath. An overflow sensor (21) is also provided. Outlet of water is controlled by a solenoid valve (17) in the drain pipe. ADVANTAGE - Provides automatic control of temp. and level of bath water.
Patent DE-3926122-A1 (DE)
Title: Insulating corrugated sloping roofs - by placing reinforcing channel sections in roof troughs without touching them and casting lightweight concrete mix to cover area
Inventor: KESTING LORENZ
IPC: E04D7/00
Filed: 1989-08-08
Abstract: Roof covering is produced for (pref.) slightly inclined roofs or corrugated sheets which are supported down the incline by purlins on trusses; the product concerned is a thermally insulating material which is applied to the corrugated sheets as a liq. so as to cover over the crests of the corrugations and fill in the troughs; it produces a smooth surface when hard and an outer coating therefore for the roofing. The material used for the exterior is a lightwt. concrete with individual reinforcing sections; these reinforcements have a covering of lightwt. concrete between the top face of the corrugated sheets and themselves, and internal arches are formed at right angles to the slope between the reinforcing sections. Pref. lightwt. concrete used contains granules of polystyrene foam plus cement, lightwt. additive, alkaline texile fibres, and a flow promoter. ADVANTAGE - The lightwt. concrete provides good thermal insulation and is readily applied in a uniform desired thickness. The reinforcing sections produce an outer layer with weight less than the max. limit permitted but with load-bearing capacity.
Patent DE-3926256-A1 (DE)
Title: Foot spa for cleaning and massaging feet - has brushes and sponge set in box with water outlet
Inventor: KIM POK-JA
IPC: A47K3/022
Filed: 1989-08-09
Abstract: The foot spa comprises a box (1) with a fold down foot rest (b), a plug (c), operating buttons (d), cleaning objects (e) for the top and front part of the foot, cleaning objects (f) for the bottom part of the foot, a connecting member (g) with harmonica sealing sleeve (g), a connecting member between the lower cleaning objects, a dryer and a shower. The box can be any shape and various materials can be used for the different objects. USE/ADVANTAGE - The foot can be cleaned and massaged.
Patent DE-3927461-A1 (DE)
Inventor: MOELLER HINRICH DR
IPC: A61K31/215
Filed: 1989-08-19
Abstract: Carboxylic acid esters having the general formula (I), R<1>-O-C(O)-(CH2)x-O-C6H4-(CH2)y-C(O)-O-R<2>; in which R<1> and R<2> independently represent alkyl groups with 1-4 carbon atoms, x is an integer between 1 and 4 and y = 1 or 2, are anti-inflammatory active substances useful in the production of topical pharmaceuticals or cosmetics.
Patent DE-3928206-A1 (DE)
Title: Pocket suction instrument for treatment of insect sting or snake bite - has piston acting against spring retained with latch so as to create sudden vacuum when released and, draw out poison
Inventor: BARON HANS RUDOLF
IPC: A61M1/08
Filed: 1989-08-25
Abstract: The cylindrical instrument (1) is primed by depressing the piston (2) until it engages the ratchet lever (5).  Several ratchet positions (18,19) are provided to  vary the suction effect.  The piston return spring (3) compresses into a recess (4) allowing complete internal displacement by the piston (2).  A short piece of clear tube (7) is fitted over the instrument nozzle (6), moistened and placed over the wound area. Operating the ratchet lever (5) releases the piston (2) which creates a vacuum above the wound.  The resulting suction effect draws out the poison from the wound.  The process is observed through the clear nozzel tube (7) and the  procedure repeated if required. USE/ADVANTAGE - Small, quickly primed for use and can be operated with one hand - prompt application to sting or bite avoids infection and painful side effects - Suction strength can be adjusted to suit sensitive skin.
Patent DE-3936740-A1 (DE)
Title: Packaging items in low edge shells - in which shells with upper and lower edges are filled, sealed with film and upper edge is sheared off at punching station
Inventor: SCHMECK ALFRED E DIPL ING
IPC: B65B31/02
Filed: 1989-11-04
Abstract: The method relates to a process and equipment for packaging articles in an air tight shell where a thermoplastic film is positioned over a preformed shell and drawn down over the article such that it conforms to the contours. The shell is initially mfrd. with a lower edge and an upper edge which is level with or higher than the packaged item. After sealing the film around the lower edge, the upper edge is removed by shearing at the transition point between the central shell area and the upper edge. The packaged, sealed items are clearly visible over the lower shell edge. USE/ADVANTAGE - Packaging articles partic. foodstuffs in a presentable shell. Equipment has a simple design and is safe in use.
Patent DE-3940175-A1 (DE)
Title: Radial shaft seal with fluid pumping grooves supported on shaft - has forces transmitted by seal bush maintained equal and opposite to the forces existing in fluid film
Inventor: KAYSER ALBRECHT DIPL ING
IPC: F16J15/00
Filed: 1989-12-05
Abstract: The elastic bush (1) of a radial shaft seal has fluid pumping grooves (2) on its inner surface and is supported on a shaft by a fluid film. The force transmitted by the bush to the fluid film arises from its own elastic forces and an external pressure loading. The axial distribution of this force is maintainted equal and opposite to the axial linear increasing force in the fluid film by variations in the loaded surface area and not in the transmitted bush force. ADVANTAGE - Fluid film remains at high pressure with the shaft stationary.
Patent DE-4005166-A1 (DE)
Title: Rod-rope fixture - by plastic grip for rod integral with split connector for rope
Inventor: BAAS ELBERT
IPC: F16G11/00
Filed: 1990-02-17
Abstract: A rope is fixed to a rod, e.g. for use in a ball practice game, by using a grip with a bore to hold the rod and a split unit joining it to a rope. A clamp holds the split unit on the rope. Both the grip and the split connecting unit are made in one piece from plastic material. In an embodiment, to fix a rope (2) to a rod (3) at any height, the unit (1) is used. This consists of a grip (30) with a bore (31) for the rod, and a split end (20) which secures the crimped ring (10) on rope (2) in the recess (23) of the split connector (20). A clamp (50) holds the parts (21,22) together, assisted by screws through holes. A recess (25) located the clamp ring (40). ADVANTAGE - This is a simple device which can be applied at any height to the rod and is completely safe.
Patent DE-4006070-A1 (DE)
Title: Partitioning semiconductor disk, esp. silicon - by trenches using cutting edge disk having buffer layer
Inventor: SILBERNAGEL RAINER
IPC: H01L21/304
Filed: 1990-02-27
Abstract: Disk of semiconductor material, esp. Si, is partitioned between several structural elements using a tracer device with trenches of several microns thickness. During the process the disk is supplied with a foil and a buffer layer. Elastic buffer layer (3) lies on the disk and trenches (5) are formed using a cutting edge (1). Cutting edge (1) is pref. applied at 20-100N, 70-90N to 475  microns thick Si disks. Shore elasticity of the buffer layer (3) is pref. 20-95 (60-70). Cutting edge, which is pref.  wedge-shaped, is placed at an angle of less than 1 deg. to the disk. Buffer layer (3) is pref. formed of a uniform plate with recesses with ratio of the openings of the recesses to the buffer layer is 5.8-0.65. USE/ADVANTAGE - Wafers of usual size carrying a number of single chips, can be partitioned and contain thin membrane regions or other micromechanically mfrd. partitioned regions. Process is fully automated.
Patent DE-4007404-A1 (DE)
Title: Machine cycle times measurement - using integral time measuring commands in numerical control programs
Inventor: JUST MANFRED
IPC: G07C3/10
Filed: 1990-03-06
Abstract: In high volume engineering production it is vital that individual component cycle times are controlled and reduced if possible. The normal method for measuring time is the stop-watch. This does not, however, give reproducible results. The new method employs two numerical control program commands which start and stop time measurement. This provides exact, reproducible cycle times. In the event of the machine being stopped for some reason, the clock is also stopped.
Patent DE-4007762-A1 (DE)
Title: Removing polymer from optical fibres etc. - by first peeling with cutters in air heated above polymer softening point, removing residues with high alcohol content solvent and wiping
Inventor: KNAKE GUENTER
IPC: G02B6/44
Filed: 1990-03-12
Abstract: A process removes a layer of polymer from the surface of a glass fibre or a number of optical fibres which make up a flat strip. The fibre or strip is passed between two fixed cutters so that the polymer is peeled off two opposite sides, the remaining polymer is removed from the edges or from between optical fibres by dissolving in a high alcohol-content solvent and wiping off. The figure shows the removal of coating (3) and adhesive (4) from a band at a part (7) which is positioned between cutters (5,6). To save time in setting up, the top cutter (5) is pref. mounted in a swivelling position. This cutter (5) is lowered by a micrometer screw to first be applied precisely in position, and hot air is blown (8) in to raise both surfaces (3,4) to above their softening pt. The band (1) is next moved to the right between the cutters (5,6) and adhesive plus part of the coating (3) is lifted off, leaving a fine layer of each in the interstices between individual fibres and also a thin coating on the top of the fibres (2). When the appropriate length has been so treated the cutter (5) is lifted off, the band is taken off, and the length concerned is placed in 96% ethanol for 30 secs.  The dissolved layer is finally removed with a cloth. ADVANTAGE - The procedure efficiently removes all traces of coatings or adhesive, not only at the ends of the fibres but also from a definite length e.g. at the centre of a band. No dangerous solvent is used.
Patent DE-4010696-A1 (DE)
Title: Continual monitoring of gas formation in fluidised bed compartment - with result obtd. used to control rate of input of fluidising medium
Inventor: MAETZIG HELMUT DIPL ING
IPC: B01J8/24
Filed: 1990-04-03
Abstract: When an excessive quantity of the fluidising medium is introduced into a fluidised bed compartment, gas bubbles are formed which break surface to throw solid particles at the compartment walls. The novelty is that a measuring device is installed to monitor the formation of gas bubbles and that the value so derived is used to control the rate of input of the fluidising medium. USE/ADVANTAGE - The arrangement facilitates the correct and instant matching of fluidising medium input to gas formation without a human operator or any significant additional energy supply.
Patent DE-4011753-A1 (DE)
Title: Exhaust gas filter for Diesel engine - incorporates mineral fibre pad with catalytic material
Inventor: SANTARELLI MARIO
IPC: F01N3/28
Filed: 1990-04-11
Abstract: Exhaust gas filter for a vehicle diesel engine having a housing comprising a tubular side wall and a pair of end plates with a filter arranged between an inlet pipe and an outlet pipe.  One of the end plates (5) is removable and the filter has a replaceable cartridge (25) containing a mineral fibre pad (27) carrying a catalytic substance containing a noble metal. ADVANTAGE - Catalytic filter which is easily replaced and which is particularly suitable for difficult thermal conditions.