baber/WOPTO huggingface dataset:
Patent DE-4112108-A1 (DE)
Title: Recycling harmful residue from barium sulphide, lithopone and blanc fixe mfr. - by lixiviation with soda under pressure then hydrochloric acid at atmos. pressure
Inventor: KIESSIG GUNTER DR
IPC: C01D3/04
Filed: 1991-04-11
Abstract: Treatment of BaS lixiviation residue (I) and chlorination mud (II) from the prodn. of lithopone and blanc fix involves lixiviation of the solids in an aq. suspension made alkaline with soda under pressure and then in HCl at atmos. pressure. A mixt. of (I) and (II) contg. Zn from lithopone mfr. in over 3:1 ratio is used. Alkaline lixiviation is pref. carried out for 1-3 h at 1.4-2.5 MPa, in the absence of air, using a soda/solids ratio of (0.55-0.58):1. USE/ADVANTAGE - The normally harmful residues are re-used as raw material and ca. 60-70% of the solids are recovered as high-grade material. Saving the need for extremely expensive special refuse tips almost covers the cost of recycling. The soda soln. is recycled until the NaCl soln. is discharged. In an example, 1000 kg residue contg. 25% BaSO4, 3% BaCl2, 24% BaCO3, 42% coke/ash and 6% silicates/gangue and 546 kg soda (solid) were suspended in water to give 2.44 cu.m slurry. Lixiviation was carried out for 3 h in a stirred auto-clave at 1.8 MPa and 160 deg.C. The lixiviation soln. was filtered and the filter cake was washed and dissolved by adding conc. HCl to pH 3-4. This left 43.8% acid-insol. residue, which as filtered, washed and treated with Na2SO4 soln. It then contained no toxic soluble constitutents and was no longer special waste. It had the compsn. 8.2% BaSO4, 0% BaCl2, 0% BaCO3, 80.3% coke/ash and 11.5% silicates/gangue. The HCl lixiviation soln. was purified by chlorinating oxidn. The lithopone was pptd. with BaS, then the black fixed with NaSO4 soln. The remaining NaCl soln. was conc. to ca. 100-120 g/l and used for regenerating ion exchange resin. The Ba yield was 85.7%.
Patent DE-4113130-A1 (DE)
Title: Inking system for rotary printing machine - has ink reservoir formed by shallow grooves in bar
Inventor: WALLMANN WILFRIED
IPC: B41F31/02
Filed: 1991-04-22
Abstract: A rotary printing machine has an inking roller which is supplied with ink from a bar (27) with shallow longitudinal grooves (10) forming the reservoir. These grooves are on the side of the bar which faces the roller (1) and the gaps between the surface of the roller and the upper and lower edges of the bar are sealed by wiper blades (16,17). The bar is fitted with connectors (21) for the attachment of the ink supply pipe and the ink return flow pipe. USE/ADVANTAGE - Inking system for rotary printing machine. The risk of printing ghost images is eliminated.
Patent DE-4113859-A1 (DE)
Title: Stabiliser for tractor three point linkage - has housing with stop to limit lateral movement of tow hitch arms
Inventor: CONRAD ERNST
IPC: A01B59/041
Filed: 1991-04-27
Abstract: The stabiliser for the lower link of a tractor three-point linkage has a housing (11) of the support attached on the tractor (1) by a joint (33). A stop limiting the lateral movement has a sliding guide (17) with a block (18) that can slide within it. The lower link ends of the hitch arms are connected to the block within the guide. USE/ADVANTAGE - The hitch is robust, so that it can provided adequate stabilisation of the lower link for any make of tractor.
Patent DE-4117395-A1 (DE)
Inventor: HEUCHER REIMAR DR
IPC: H01R4/04
Filed: 1991-05-28
Abstract: A plug-type connector for electroconductive cables, in particular coaxial cables, is characterized by the use of a hot-melt-type adhesive having a fusion viscosity of more than 8,000 mPa.s at 200 DEG C. The hot-melt-type adhesive connects, seals, fills and insulates at the same time. Its main components are a polyamide based on dimerized fatty acids, aliphatic amines and modifiers, as well as a copolyethylene and additives. Connectors are thus obtained that satisfy stringent electric, thermal and other requirements.
Patent DE-4124627-A1 (DE)
Title: Vehicle body adhesive bond - has corrugations along inserted part matching width of U=shaped trough with adhesive at the other part
Inventor: MILDNER UDO DIPL ING
IPC: F16B3/00
Filed: 1991-07-25
Abstract: The adhesive bonding between two components, esp. vehicle body parts, the edge (5) of the component to be inserted into the U shaped trough (3) containing the adhesive is structured with corrugations. The spread of the corrugation matches the width of the U-shaped trough (3), and the comb lines run along the line of the joint movement of the parts (1,2) to be joined together, e.g. the end wall and the body. The corrugations are pref. formed to give a triangular or rectangular profile, or they can follow a serpentine path. One of the parts (1) to be bonded can have a profiled inner edge, directly at the bonding zone, parallel to and matching the corrugations formed in the other part (2) to be bonded. ADVANTAGE - The bond gives a firm and stable adhesion between the two parts and also keeps them in their required relative positions while the adhesive is hardening.
Patent DE-4126051-A1 (DE)
Inventor: SCHNEIDER WALTER DR
IPC: B42D25/355
Filed: 1991-08-06
Abstract: A security document such as a bank note or identity card having a flat security element (2), suitable for both visual and machine authenticity checking, comprises a multilayer electroluminescent safeguarding thread that has a luminescent effect in predefined wave ranges. The threads may be formed from a substrate (3) coated with metal (4) onto which is printed alternate strips of heatsealable ink (5) and electroluminescent ink (6). A second film (30) coated with metal (40) is covered in heat-sealable ink (5) and laminated onto the first film. For identity cards, an all-over electroluminescent layer may be used. <IMAGE>
Patent DE-4131012-A1 (DE)
Title: Transport machine for forestry work - comprises front vehicle with driver's cab and rear load carrying vehicle with crane
Inventor: WEINANDY WOLF-PETER DIPL ING
IPC: B60P3/41
Filed: 1991-09-18
Abstract: The transporter is used for forestry work. It comprises a front vehicle (1) with a driver's cab (4) attached to a rear load-carrying vehicle (2) by a flexible coupling (3). The front vehicle (1) is protected from the load by a grille (12). A loading crane (17) is mounted on a portal frame (13) on the front of the rear vehicle (2). The grille (12) is integral with the portal frame (13). USE/ADVANTAGE - The driver has an uninterrupted view of the loading of the rear vehicle of a timber transporter.
Patent DE-4132020-A1 (DE)
Title: Security system with alarm for carrying case - has wire integrated into carrying strap that, if cut, triggers alarm within locked case
Inventor: POSCH JUN
IPC: G08B21/02
Filed: 1991-09-26
Abstract: The case used to store valuable items has a carrying strap (4) that has an integrated electrical wire (10). The ends of the strap are coupled in a latch (6) that receives a shaped insert (8) that is only released when a push button is operated. The electrical cable is connected to an acoustic alarm unit (12) that remains inactive as long as the circuit is complete. The strap can be looped around a fixed object and the lid of the case locked (3). If the strap is cut, the alarm is triggered. ADVANTAGE - Easily built into bag, case etc.. Outward appearance or weight not noticeably changed.
Patent DE-4135566-A1 (DE)
Title: High-vacuum metal seal - has expanding washer integral with dish-portion and flush with its beaded edge
IPC: F16K51/02
Filed: 1991-10-29
Abstract: The high-vacuum metal seal comprises a sealing face against which the edge of a dish-shaped plug bears. An actuator moves the plug between the open and shut positions, and between it and the plug is an expanding cone washer, slotted if necessary. The washer(3) is integral with the plug(2), whose edge(7) is beaded and of rounded section. This edge is in a common plane with the washer. ADVANTAGE - Allows repeated opening and shutting.
Patent DE-4135652-A1 (DE)
Title: Transmission mechanism for wiper arm shaft - has unit for insertion of polished shaft end in fluted hole
Inventor: BUSCHI LUCIANO
IPC: B22F5/08
Filed: 1991-10-29
Abstract: Transmission mechanism for a vehicle screen wiper comprising a shaft (1) carrying a wiper arm having a first end (1b) which is inserted into the central opening (3a) of a sintered gear wheel. The surface of the opening is grooved or fluted and the end of the shaft is polished before assembly. ADVANTAGE - Wiper mechanism in which production costs are reduced by eliminating the customary heat treatment of the shaft end.
Patent DE-4140213-A1 (DE)
Title: Filler valve for filling sacks - has valve which allows air to flow out but prevents flow of material
IPC: B65D30/24
Filed: 1991-12-06
Abstract: The sack made from foldable paper or plastics sheet is filled with a granular or powdery material by suction. The sack has a filler inlet (4) to which the granular or powdery material is delivered by a flexible hose. The sack is fitted with a filter valve (6) which allows air to pass through, but prevents the passage of the granular or powdery material. The material is thus drawn into the sack through the inlet but is prevented from flowing out of the sack by the valve. USE/ADVANTAGE - Filling sacks with granular or powdery material. The valve prevents the outflow of the material.
Patent DE-4142874-A1 (DE)
Title: Spoiler core shaper tool for hard synthetic resin foam core - has countersunk openings to centre connecting screws and centering unit to position spoiler parts and nut precisely
Inventor: GEIL PETER
IPC: B29C33/12
Filed: 1991-12-23
Abstract: The tool has chamfered centering surface at the openings for the connecting screw which have corresp. chamfered heads at the screws. The centering unit is screwed into place together with them to hold the feet of the core at a defined angle and position w.r.t. the drilling for the threaded pin to engage the nut. A ring shoulder is pref. at the entry to the holding openings to take a distance ring on the connecting screws. ADVANTAGE - The tool hardens the synthetic resin where the hard foam core, laying surfaces and feet, and esp. the threaded nut, are precisely positionedO
Patent DE-4202704-A1 (DE)
Title: Nappy with repeatedly reusable, self=fastening construction - is fastened by strip of pref. polymer coated with prepd. e.g. hot melt-adhesive to produce specific peel strength without damage
Inventor: SKURNIA UWE DR
IPC: A61L15/58
Filed: 1992-01-31
Abstract: Nappy has self-fastening construction which can be repeatedly used and undone. It is fastened by means of strip of basic material which is covered with discrete adhering segments coated with self-adhesive on at least the part where it is to adhere to the second part of the nappy when in use. This self-adhesive substance produces bonds such that the coating and the outer layer on the nappy provide peel strength of 2.5 N/30cm or more and the outer layer can be taken off and stuck on again many times without damage to that layer. Pref. substances for the basic material are polyethylene, polypropylene, PVC or polyester; the prod. pref. has release film of silicone-paper, polyethylene or polypropylene; the self-adhesive is pref. based on block copolymers of styrene-isoprene-styrene, styrene-butadiene-styrene or styrene-ethylene-butylene, alternatively a hot melt adhesive based on acrylic esters or polyester-acrylates. ADVANTAGE - The nappy has simple and sensible fastening arrangement which is repeatedly reusable. It requires no reinforcement. It is not damaged by repeated use. It does not have to have release film.
Patent DE-4207373-A1 (DE)
Title: Thumb dagger for self defence - has cylindrical cutting edge and is mounted on base which matches inside surface of thumb and is secured by clip
Inventor: BOLLIER JAKOB E
IPC: F41B15/00
Filed: 1992-03-09
Abstract: A thumb dagger consists of a baseplate with an attached cylindrical crown. The baseplate is curved to suit the shape of the inside surface of the thumb and is held in place by a clip which fits over the thumb. The baseplate supports a hollow open-ended cylinder with a sharp edge formed around the open end. This sharp edge is divided into segments by V shaped notches. A sharp pointed pin is mounted centrally in the cylinder. The lower end of the pin is fastened to the base whilst the point extends beyond the sharp edge of the cylinder. USE/ADVANTAGE - For self-defence by women against physical attack. The weapon is easily carried but can inflict serious injury.
Patent DE-4210394-A1 (DE)
Title: Magnetic field and currents measurer e.g. for analogue-digital circuit testing
Inventor: HELMREICH KLAUS DIPL PHYS
IPC: G01R33/02
Filed: 1992-03-30
Abstract: The arrangement has a source which directs radiation towards a region (3) of the surface of a measurement body or conductor (1) so that low energy charge carriers (5), or secondary electrons, emanate from the body with a speed component perpendicular to the magnetic field (4). A detector arrangement monitors the directional distribution of the charge carriers emanating from the conductor. An evaluation unit determines the magnetic field, or the current which generates the magnetic field, from the detector arrangement's output signal.
Patent DE-4210948-A1 (DE)
Title: Cleaning contaminated substances esp. granular material - by water addition, filtration, particle separation according to size and use of settling tanks
Inventor: KRUEGER KLAUS H
IPC: B03B9/00
Filed: 1992-04-02
Abstract: Cleaning contaminated substances, especially suspensions, powder-formed, granular or soft material. The contaminated substance undergoes an initial dual process of water dilution and mechanical processing. The substance is then filtered to remove particles of size greater than 2mm. These can then be re-used as decontaminated material. The particles of size less than 2mm are subjected to a density separation. The lighter fraction is fed to a settling tank, while the heavier fraction is further separated according to particle size. Particles of diameter greater than 400 microns are deposited and re-used as decontaminated material. Particles less than 400 microns are fed to the settling tank. The resulting mud in the settling tank has its water content removed and can be reused as de-contaminated material. If necessary a further processing can be undertaken. ADVANTAGE - In comparison with existing processes, the method is cheaper and more efficient, a much more of the contamination is removed.
Patent DE-4217097-A1 (DE)
Title: Interferometric detector of charge carrier densities in semiconductor material - has laser radiation source, Bragg cell as a radiation divider, and optical radiation beam former
Inventor: GOLDSTEIN MATTHIAS
IPC: G01R31/308
Filed: 1992-05-22
Abstract: Signal sources (5,6) are used for acoustic energising of the Bragg cell (2), and a detector (7) is used for evaluation. The signal sources simultaneously generate two different frequencies (f1,2), while the Bragg cell and the optical beam former (3) can be so aligned that the laser (1) radiation passes through the Bragg cell. After the through passage the laser beam is so diffracted that two partial beams are directed through the optical beam former onto the examined semiconductor material. The two partial beams, diffracted by one of the two frequencies are of higher order than zero. Pref. between the laser and the Bragg cell is fitted a polarising beam splitter (8). USE/ADVANTAGE - For measuring charge carriers and their densities in semiconductor layers, with precise adjustment of partial beam for measuring with slight separation.
Patent DE-4230186-A1 (DE)
Title: Isolation of podophyllotoxin and derivs. - from Thuja occidentalis by extn. and chromatography, used as antitumour or antiviral agents
Inventor: WAGNER HILDEBERT PROF DR
IPC: C07D493/04
Filed: 1992-09-09
Abstract: Isolation of podophyllotoxin (PPT) and/or at least one PPT deriv. comprises: (a) deriving a lignan-rich extract from Thuja occidentalis (yellow cedar) plant parts; (b) purifying the extract by column chromatography on an adsorbent suitable for sepn. of tannins and phenolic cpds.; (c) fractionating the PPT (or deriv.) contg. fraction by gel chromatography; and opt. (d) further fractionating the PPT (deriv.) fraction by HPLC, opt. after fractionation by MPLC. Also claimed are pharmaceutical prepns. contg. at least one PPT deriv. (specifically desoxy-PPT), opt. in combination with a carrier and/or diluent. In step (a), dried T. occidentalis branch tips are macerated or percolated with at least one organic solvent with no higher polarity than MeOH, pref. EtOH (esp. 40-100 vol.% EtOH), CH2Cl2, CHCl3, petroleum ether, pentane or hexane. In step (b), the stationary phase is polyamide or silica gel and the eluant is alcohol, opt. mixed with up to 70% water, esp. EtOH. In step (c), the stationary phase is crosslinked, modified dextran, esp. "Sephadec LH20" (RTM). In step (d), the MPLC and HPLC stationary phases are modified silica gel, esp. silica gel with a bonded 2-18C (esp. 8-18C) alkyl chain for MPLC or with an 8-18C (esp. 18C) alkyl chain for HPLC. USE/ADVANTAGE - PPT has antitumour and antiviral activity. PPT derivs. (esp. deoxy-PPT) have strong antiviral activity and are esp. suitable for external use (e.g. as gels, ointments, liq. extracts and tinctures), although they may also be used orally. PPT derivs. (other than deoxy-PPT) include alpha- and beta-peltatin, picro-PPT, dehydro-PPT desoxy-podorhizone. PPT and its derivs. are isolated easily in high yield and high concn. or purity. The fractionation/enrichment stages are easily monitored by HPLC, allowing exact standardisation of prepns. contg. PPT derivs. In an example, 30g of dried T. occidentalis branch tips was macerated for 10 days with 150 ml 70 vol.% EtOH. After filtration, the extract (100 ml) was stirred with 20g of polyamide powder for 10 mins. The powder was filled in a column and eluted with 200 ml. The eluate was evapd. to give 2.5g of prod. A soln. of the prod. in 50% MeOH was subjected to chromatography on a "Sephadec LH20" (RTM) column with 50% aq. MeOH. Active fractions (detected by HPLC) were combined to give 80 mg of prod. The prod. was purified by MPLC on an "RP-18" column equilibrated with MeOH/water (30/70) at flow rate 2.5 ml/min., using a stepwise increase in MeOH concn. (reaching 100% in 30 mins.). The active fraction (9 mg: detected by UV) was further purified by reverse-phase semi-preparative HPLC ("Hibar-Column RT 250-7", "Lichosorp RP 18" (RTM); 7um) using MeCN/water (47/53) as eluant to give 4.9mg of desoxy-PPT and 1.7mg of desoxypodorhizone (yatein).
Patent DE-4230316-A1 (DE)
Title: Airjet spinning frame - has fluted bottom output roller on the drafting zone.
Inventor: STALDER HERBERT DR
IPC: D01H5/78
Filed: 1992-09-10
Abstract: On an airjet spinning frame the drafting zone consists of three roller pairs, with aprons on the middle pair. The bottom fillers are metallic, and top rollers are elastomer. The bottom output roller is fluted across the width, with a smooth outer surface on each section forming an arc longer than the intermediary gap. On the output driven steel roller (17) of the drafting zone; the top surface arc (23) of each sector is of the same length, as are the slots (24). The arc of the sector (23) is up to three times longer than the slot (22). ADVANTAGE - The design enables impurities to be removed from the fibre before entering the airjet, reducing the number of breaks in the yarn.
Patent DE-4230987-A1 (DE)
Title: Bicycle frame structure - has rear wheel forks comprised of two struts, and angled saddle tube
Inventor: WALLNER HEINRICH PROF
IPC: B62K3/04
Filed: 1992-09-16
Abstract: The bicycle frame has rear wheel forks, which are formed by two struts (10,11). These extend self-supporting from the saddle tube (4), parallel to each other, in an angled backward direction into a position on the same height as the bottom bracket bearing (6). The saddle tube is angled. It has a first section (4b), extending backwards from the bottom bracket bearing, and a second section (4a), which extends downwards from the top tube (2). The two struts are connected at the connection point (4c) between the two sections. The bottom bracket bearing is located at the bottom end of the down tube (3). ADVANTAGE  - Simple manufacture, high stability, very good appearance. Rear wheel forks have spring action. Permits frame to be manufacture as a single moulded part.
Patent DE-4236729-A1 (DE)
Inventor: FABER GUENTHER
IPC: F42B3/12
Filed: 1992-10-30
Abstract: One fuse head has an insulating pole body with electrically conducting longitudinal strips, an incandescence bridge arranged on the pole body between the strips and connecting wires. The glow bridge and the connecting wires each being connected via soldered joints to the longitudinal strips. The fuse head also has at least one priming explosive and an external varnish finish coating covering the at least one priming explosive. To improve adherence, to facilitate the manufacturing process, to reduce the size of the solder joints, and to reduce the weight distribution of the priming explosive, it is proposed to arrange on the pole body, perpendicular to the pole body axis, grooves which are filled with priming explosive. Another fuse head has a basic module with electrically conducting pole supports running through it, the ends of the supports being connected on the ignition side via an incandescence bridge. It is proposed to arrange on the basic module at least one groove perpendicular to a longitudinal axis of the basic module, said at least one groove being filled with priming explosive.
Patent DE-4236928-A1 (DE)
Title: Sequential testing of image information - involves evaluation of image information, optimising image representation, and testing and classifying optimised information
Inventor: KOENIG EBERHARD DR
IPC: G01M11/02
Filed: 1992-10-31
Abstract: The sequential image information testing method involves evaluation of the image information, and activating a controller which varies equipment parameters until optimal representation of the image information is achieved. The optimised image information is tested and classified according to the test results. The controller is motor driven according to the representations of the image information resulting from different equipment parameters and until an optimization parameter reaches an optimum value. The optimization parameter can be the detectability of object characteristics. USE/ADVANTAGE - E.g. for testing optical components such as lenses or contact lenses for defects. Method and arrangement enable testing procedures to be simplified.
Patent DE-4238042-A1 (DE)
Title: Key for remote central locking of vehicle doors - has two push=buttons respectively for locking and unlocking, and pivoted key shaft which folds down to cover unlocking button
Inventor: SCHROEDER HANS-JOACHIM
IPC: E05B19/04
Filed: 1992-11-11
Abstract: The key has operating buttons (3,4) respectively for transmitting opening and closing command signals to the remote-control receiver for the vehicle central locking system. The buttons are provided in the key-tag (1) which houses the remote-control transmitter, the key shaft (2) pivoted between a working position and a stowed position in which it lies against the side of the tag, to fit over the opening button (3). The opening and closing buttons may be operated by the pressure applied to the pivoted key shaft. ADVANTAGE - Prevents accidental unlocking of vehicle.