baber/WOPTO huggingface dataset:
Patent DE-4005026-A1 (DE)
Title: Removing gold and silver from antimony ores - by reacting with ammonia under oxygen pressure and high temp. to remove noble metals in soln.
Inventor: GOCK EBERHARD PROF DR ING
IPC: C22B30/02
Filed: 1990-02-19
Abstract: Recovering Au and Ag from sulphide Sb ore or by-products of the Sb metallurgical process consists of reacting the ore with NH3 for 15 mm to 6 a at 120-200 deg C in the presence of 02 with a partial pressure of 5-30 bars. The Au and Ag passes almost completely into soln while the Sb remains in solid oxide form. The ore is initially, mechanically comminuted in a rotation mill using 100-500 kw/t. The NH3 starting concentration with respect to the sulphide sulphur content in the ore is 1:1 to 5:1. The dissolution of the Au and Ag pref takes place in the presence of Cu ions whereby the Cu ion concentration to the noble metal content is at least 1:100. The noble metal is removed from soln by adsorption on carbon or by using ion exchange material. ADVANTAGE - The noble metals are selectively removed in high yields.
Patent DE-4010045-A1 (DE)
Title: Cooling system for cement - has mixer tube for cooling fluid in cement feeder tube
Inventor: CAPITAINE PETER DR ING
IPC: B28C7/00
Filed: 1990-03-29
Abstract: The system is for cooling of powder materials, which are fed pneumatically into a silo (10).  The material passes (9) through a conveyor tube (9), and it is brought into direct contact with a cooling fluid. The cooling fluid is supplied through the mixture tube of a venturi nozzle, which is integrated in the conveyor tube (8).  The cooling fluid is liquid nitrogen. USE/ADVANTAGE - Cooling of dry cement with direct contact between powder and cooling fluid.
Patent DE-4011400-A1 (DE)
Title: Treating liquids, slurries and pastes - by contact with comminuted organic fibres of high absorption capacity, to produce flowable or plastic material
IPC: C02F11/13
Filed: 1990-04-09
Abstract: Liquids, slurries and pastes (I) are treated by converting them into a flowable or plastic material. (I) are contacted with organic fibres (II) prepd. by special or repeated comminuting to a cell structure of felting tendency, and then raising the absorption capacity by increasing the vol. size. (II) are pretreated by breaking up and dividing the cell structure, and then fibrolating the cellulose fibres in rotation aggregates. The fibres are produced from agricultural processes, such fibres being straw, peanut shells, flax, cotton and dried leaves, or from reprocessing of wood, in which wood prods. such as shavings, saw dust, bark waste are produced. The fibres also originate from pure cellulose, paper and reycled paper, textiles, plastics, dispersions and waxes. Before, during and after comminuting the fibres are hydrophobic, hydrophilic or lipophobic or lipophilic, and are contacted with fertilisers and plant seeds. USE/ADVANTAGE - Problems of treatment, storage and reprocessing of e.g. used oils, solvents, paint residues and bituminous substances are overcome in an ecological process.
Patent DE-4012957-A1 (DE)
Title: Colourless block copolymer(s) prodn. - by polymerisation of alkylene oxide(s) and cyclic carbonate(s) in presence of aluminium porphyrin initiator
Inventor: HOVESTADT WIELAND DIPL CHEM
IPC: C08G64/18
Filed: 1990-04-24
Abstract: Colourless block copolymers of formula A-B, A-B-A and B-A-B (I) are claimed, in which A is the residue of a polymer obtd. by polymerisation of an epoxide and B is the residue of a polymer obtd. by polymerisation of a cyclic aliphatic carbonate of formula (II) or (III), the polymerisation carried out using an initiator of formula (IV) and the polymer obtd. is then subjected to ozone treatment. In the formulae m, n, p, q = 0, 1, 2, 3, 4, 5 or 6; R, R' = H, 1-6C alkyl, 3-6C alkenyl or (1-6C alk(en)yloxy)-(1-6C alkyl); R1 = H, Ph, p-chlorophenyl or p-methoxyphenyl; R2, R3 = H, Me or Et; X = Cl, OR4 (with R4 = 1-8C alkyl or Ph), OCH2CH2OPh, -OCH2CH2OPheCMe2PheOCH2CH2O- or -O-(2-8C alkylene)-O-(with Phe = p-phenylene, and with Al porphyrin residues at each end of the units derived from alpha, omega-diols). Pref., A is based on ethylene or propylene oxide, and B on neopentyl glycol carbonate; pref. (IV) are prepd. by reaction of Et2AlCl with 5, 10, 15, 20- tetraphenyl-21H, 23H-porphyrin. USE/ADVANTAGE - (I) are used as additives for thermoplastic systems. Use of (IV) as initiator, followed by ozone treatment, gives colourless copolymers (I) which can be used as additives to improve processability or miscibility in polymer systems (e.g.  SAN, ABS, PMMA, PVC, polycarbonate blends, etc.) and to confer antistatic properties.
Patent DE-4016898-A1 (DE)
Title: Heating regulator for dwellings - has internal timer with stipulated value generator giving different values for night and day as well as working days and week-ends
Inventor: ULRICH GERHARD H
IPC: F24D19/10
Filed: 1990-05-25
Abstract: The regulator (1) has an internal timer (2) whose switching times can be set for normal and reduced temp. periods. An auxiliary timer (10) acts as an alarm clock and is coupled to the heating regulator (1) via a signal connection. The heating regulator has a change-over switch (8) controlled by the actuation or de-actuation of the alarm function of the auxiliary timer. In the first position of the switch (8), the change-over from lower temp. to normal working occurs according to the internal timer setting, while in the second position, the change-over is dependant on the auxiliary timer. ADVANTAGE - With lowest possible additional appts. allows better matching to needs of user, e.g. if ill or on holiday or working shifts, and requiring variation from normal early morning heating for week days and later starting for Saturdays and Sundays.
Patent DE-4019464-A1 (DE)
Title: Vehicle suspension with shock absorber direction indicator - has hydraulic ducts controlling pressure flows and electric contacts on cylinder around piston
Inventor: SCHRAMM WOLFGANG DR
IPC: B60G17/08
Filed: 1990-06-19
Abstract: The piston of the telescopic damper has an additional, loose fitting ring (50) which operates electric contacts (61, 62)  each side of the wide groove. This gives direct indication which way the piston is moving. The ring also opens and closes two hydraulic ducts (71, 72) in alternate manner. The position control ring has an O-ring (44) tensioner. The ring is designed to operate without undue thermal problems and with a controllable amount of friction. The movement of the ring in the wide groove is less than the normal stroke of the damper. ADVANTAGE - Pressures and flows between chambers can be controlled independently of direction of movement of piston.
Patent DE-4020932-A1 (DE)
Inventor: PLENGE GEORG PROF DR
IPC: H04H60/13
Filed: 1990-06-30
Abstract: For individual tuning of the dynamics of a radio programme signal (variable dynamics), a control parameter is derived from the associated radio programme signal and emitted together with the programme signal. At the receiver, the control signal is used to select reproduction dynamics differing from the transmitted programme-signal dynamics. For transmission purposes, the control parameter is inserted as a digital auxiliary signal in a data stream which is transmitted asynchronously to the programme signal in a programme-signal-free region of the transmission band. The digital auxiliary signal is inserted at intervals as a data packet with varying advance with respect to the programme-signal section concerned. The variable time differences between the points in time at which the data packets are inserted and the occurence of the programme-signal sections are transmitted as separated time information in the data packets and used at the receiver to synchronize the advanced control signal with the programme signal.
Patent DE-4021882-A1 (DE)
Title: Particle solid material sorting method
Inventor: MINDERMANN KURT-HENRY DIPL ING
IPC: B07C5/344
Filed: 1990-07-11
Abstract: The method is for sorting solids in response to their electric conductivity, and comprises the steps of subjecting solids to a microwave field of predetermined power and frequency over a predetermined time interval whereby solids assume different temperatures depending upon their dielectric properties, detecting temperatures and classifying the solids in response to the detected temperatures.  The apparatus includes a microwave furnace, apparatus for conveying the solids through the furnace, apparatus for detecting the temperatures and apparatus for classifying the solids in response to the detected temperatures.
Patent DE-4022345-A1 (DE)
Title: Regulator coupling for engine throttle control - has operation provided by mechanical and electromechanical system
Inventor: SPIEGEL GUENTER DR ING DR
IPC: F02D11/10
Filed: 1990-07-13
Abstract: The throttle pedal in a road vehicle system has a rod (4) with a carrier (6) that operates in a slot in a carrier block (8). The block can be mechanically coupled (34,36) to a regulator element (44). The lower end of the regulator has a rack (87) that meshes with a pinion (106) which is motor driven. The motor receives an input from an electronic controller (130) responding to a range of sensors. - In operation the regulation moves the throttle (52) to adjust the engine point. When disengaged the connection to the throttle is provided by the mechanical link.
Patent DE-4023105-A1 (DE)
Title: Folding table for use in motor vehicle - has gas spring which acts as damper and as support
Inventor: MATTHIAS KLAUS DIPL ING
IPC: B60N3/00
Filed: 1990-07-20
Abstract: The folding table is for use in a motor vehicle. The table panel (16) is supported on each side in a bearing block (18) so that the panel (16) can be swung about a horizontal axis. Each bearing block (18) slides in a vertical guide channel (19). The panel (16) is actuated by a gas spring (51), a cable (57) and pulleys (59, 69). The gas spring (51) functions as a damper when the table is in its stowed position. When the table is in its use position, the gas spring (51) provides additional support to the panel (16). USE - Table for use in a motor vehicle.
Patent DE-4025181-A1 (DE)
Title: Self-regulating static mixer tube for water treatment - and chemical plant
Inventor: TAO LU
IPC: B01F5/06
Filed: 1990-08-06
Abstract: Mixers incorporated within pipes customarily require a number of components to achieve their effect for water treatment and chemicals prodn. A ring-shaped constriction pocket made of soft material is incorporated in the pipe, through which water or air may flow into the pipe; the surface of this ring-shaped constriction pocket bears folds in the direction of fluid flow; and these folds are strengthened by fluid guidance strips. USE/ADVANTAGE - The mixer requires no components requiring power, that it has resistance to wear and etching, has high performance and provides economics on energy and chemicals. It is suitable for incorporation in water treatment works, effluent treatment works and in chemicals plant.
Patent DE-4028709-A1 (DE)
Title: Brush for developing, esp. for printing plates made of fibres - which retain not below 60 per cent of their original flexural strength after immersion in developer
Inventor: YOSHIDA SUSUMU
IPC: A46B11/00
Filed: 1990-09-10
Abstract: Brush for developing (I) is made of fibres (II) which, after immersion in a developer, have a flexural strength which is not less than 60% of the value before immersion. Brush material is ethylene-tetrafluoroethylene copolymer (ETFE), PVDF, polyphenylene sulphide or a mixt. thereof, pref. ETFE copolymer; ETFE has mol.wt. not below 50,000, pref. not below 100,000, and contains 30-70 (pref. 40-60) mol.% TFE units; fibre size is 10-1500 (pref. 10-900) denier, and the fibres are crimped, with degree of crimping 5/inch-30/inch, and implanted at the rate of 0.3-2 kg/m2; (I) is made by implanting the fibres in lines on a U-section material made of plastic or metal and winding this onto a roller which serves as a core, at an angle to the roller axis and without leaving any gaps; implanted fibre length is 5-30 mm; special fibres (II) constitute at least 50 wt.% of the total wt. of fibres in the brush. USE/ADVANTAGE - (I) is useful esp. for the development of presensitised lithographic or letterpress printing plates, photoresists, etc. The use of special fibres (II) gives a brush with excellent durability and developing performance (cf. prior-art brushes contg. crimped nylon, polyester, acrylic fibres, etc..
Patent DE-4030192-A1 (DE)
Title: Adjustment for lower leg support on boot - consists of transverse pivot, threaded pin and nut
Inventor: LEGON FABRICE
IPC: A43B5/04
Filed: 1990-09-24
Abstract: The adjustment for a lower-leg support (1), at the cap-shaped back (4) of a boot/shoe upper, is movably mounted  on a transverse axle (2) on a shoe or boot upper. A threaded pin (5) spaced apart from the transverse axle (2) has one end (52) immovably fixed to the top of the shoe upper or to the  support (1). A nut (6) held by the support (1) engages with the threaded pin (5) or with the top of the shoe-upper and is held so that it does not move axially. At least the nut (6) or the threaded pin (5) is accessible from outside and can be turned to adjust the tilt between the support (1) and the top of the shoe upper. USE/ADVANTAGE - The adjustment continually and accurately alters the tilt of a support in relation to the shoe/boot upper.
Patent DE-4030344-A1 (DE)
Title: Optically controlled, pneumatic sorting process for sorting fruits - has gas stream deflecting into predetermined channels according to selected parameters
Inventor: BOL JOHANNES DIPL PHYS
IPC: B07C5/342
Filed: 1990-09-26
Abstract: Sorting of small objects, esp. grain, leguines, beans and drapes, involves introducing the individual objects into a stream (pref. of air), (pref. all around) optically imaging the entrained objects to detect selected sorting parameters and deflecting the gas stream according to the selected parameters into predetermined channels for sorting the objects. The objects are pref. sepd. into individual objects by vibration (2) with an advancing vibration amplitude pattern to achieve equidistant spacing and then directly introduced into an air stream (3). The entrained objects are pref. scanned by linear CCD photodiode arrays, fed with linear image sections of the objects by spaced optical fibres (7), for evaluation and control. Deflection of the air stream is pref. effected by switching one or more cascade-connected flow flip-flops (12,13). ADVANTAGE - The process is reliable and allows sorting according to more than one parameter.
Patent DE-4030973-A1 (DE)
Title: Short rod with attached weights - is used for exercising lips of brass or wood-wind players
Inventor: ENGELMANN HELMUT
IPC: G10D9/00
Filed: 1990-10-01
Abstract: The device is used for exercising the lips and facial muscles of players of brass or woodwind instruments. It consists of a rod (1) to which a number of discs (2 to 8) are attached. Each disc has a central hole to enable it to be a fitted over the rod. The discs are of different dia. and consequently of different weights. The discs are retained on the rod by a nut (3) ' which engages a screw thread on the end (1a) of the rod. The opposite end (1b) of the rod is gripped between the lips of the user of the device. USE/ADVANTAGE - Exercising lips and facial muscles of brass and woodwind instrumentalists more effectively than by playing the instrument.
Patent DE-4036824-A1 (DE)
Title: Device for feeding paper for adhesion to card - comprises conveyor belt running over two guide rollers taking paper to card area for application by pneumatic process
Inventor: LEMKE WOLFGANG DIPL ING
IPC: B65C9/28
Filed: 1990-11-19
Abstract: The card is brought from a vacuum-activated holes belt (14) to the area of the paper to which it is to be applied, there to be sucked under vacuum by a thruster (20) near to the belt for discharge on to the paper by express pressure. The feed device (24) is pivotable around a first axis (22) running parallel to the axis of the guide rollers (10, 12), and around a second axis (26) running at an angle to the first. At least one of the two axes is horizontal, and they run at right-angles to one another. Between two of the guide rollers (10-12) is a vacuum box locating on the holes belt (14). The feed unit (24) can be height-adjusted along a column (32) relatively to the base unit (30). USE - To apply card on to paper.
Patent DE-4100121-A1 (DE)
Title: Blood vol. absolute measurement - using extracorporeal plasma filter to abstract predetermined wt. of plasma only while consequent change in concn. of haemoglobin is measured
IPC: A61B5/029
Filed: 1991-01-04
Abstract: Blood is pumped (2) from an artery into the extracorporeal circuit (1) where haemoglobin concn. is measured (3) and plasma is filtered (4) via a reversing valve (6) and another pump (7) into a flask (9) hanging from a spring balance (10). At a predetermined filling (e.g. 300 ml) a signal is sent (11) to an electric control circuit (12) and computer (13). An absolute vol. is deduced from the quotient of the plasma vol. and the measured percentage variation in haemoglobin concn.. ADVANTAGE - Measurements can be made at relatively short intervals with min. errors by inexpensive device using no radioactive substances.
Patent DE-4103492-A1 (DE)
Title: New 1-(1,4-bi:phenyl-methyl) benzimidazole(s) as angiotensin II antagonists
Inventor: HAUEL NORBERT DIPL CHEM DR
IPC: C07D403/14
Filed: 1991-02-06
Abstract: 1-Biphenylylmethyl-benzimidazole derivs. of formula (I) and their salts are new. (A) where: R1 = F, Cl, Br, 1-4C alkyl, cycloalkyl, CH2F, CHF2 or CF3 and is in the 4 position; R2 = R2 or may also be R2 when R4 = 1H-tetrazolyl; R'2 = 3-5C alkoxy substd. in the 3, 4 or 5 position by imidazolyl, or 2-5C alkoxy substd. in the 2, 3, 4 or 5 position by benzimidazolyl or tetrahydrobenzimidazolyl; R2 = e.g. (a) 2-(1-imadazolyl)ethoxy, 1-4C alkylsulphonyloxy, OSO2Ph or phenylalkylsulphonyloxy; (b) acylamino opt. N-substd. by 1-6C alkyl, Ph, cycloalkyl, phenylalkyl, cycloalkylalkyl, bicyclohexyl or biphenylyl, where acyl is 1-7C alkanoyl, 2-4C alkoxycarbonyl, 1-6C alkylsulphonyl, benzoyl, phenylsulphonyl, phenylalkylsulphonyl, naphthylsulphonyl, cycloalkylcarbonyl, phenylalkanoyl or cycloalkylalkanoyl, where phenyl rings are opt. substd. by 1-2 of F, Cl, Br, Me and OMe, or 3-oxopyridazylinyl or (l) 3-oxodihydropyridazinyl, opt. 2-substd. by alkyl or phenylalkyl and opt. further C-substd. by 1-2 alkyl gps., Het = a C- or imino-bonded 5-membered heteroaromatic ring or a C-bonded 6-membered heteroaromatic ring. (B) where: R1 = H or F, Cl, Br, 1-4C alkyl, CH2F, CHF2 or CF3 in the 5, 6 or 7 position; R2 = Het or a gp. as defined in (l) above; R3 and R4 are as defined in (A); provided that: (a) R2 is not 3-methylimidazo (4,5-b)pyridin-2-yl or 3-n-hexylimidazo(4,5-b) pyridin-2-yl in the 6 position when R1 = H, R3 = n-Pr and R4 = COOH; (b) R2 is not benzoxazol-2-yl in the 5 or 6 position when R1 = H, R3 = n-Pr or n-Bu and R4 = 1H-tetrazolyl; (c) R2 is not 1-methyl-2-benzimidazolyl in the 5 or 6 position or 1-n-butyl-2-benzimidazolyl, 1,5-dimethyl-2-benzimidazolyl or 1-methyl-5-trifluoromethyl -2-benzimidazolyl in the 6 postion when R1 = H, R3 = n-Pr and R4 = COOH; (d) R2 is not 1-methyl-2-benzimidazolyl in the 6 position when R1 = H, R3 = n-Bu and R4 = COOH or 1H-tetrazolyl; (e) R2 is not 2-benzimidazolyl in the 6 position when R1 = H, R3 = n-Bu and R4 = COOH; unless otherwise stated, alkanoyl, alkyl and alkoxy gps. are 1-3C and cycloalkyl gps. are 3-7C.
Patent DE-4105439-A1 (DE)
Title: Head support for vehicle seat - has joined two U=shaped frame sections welded adjacent to frame shanks
Inventor: SCHMIDT REINHARD
IPC: B60N2/48
Filed: 1991-02-21
Abstract: The head support for a vehicle seat consists of a two-part plastics frame with fasteners for attachment to the seat back rest, and a flexible covering. The frame parts (3, 4) are U-shaped and arranged in opposite orientation to each other. In this position the parts are welded together in the region of their shanks (5, 6). ADVANTAGE - Head support having a small number of individual parts which is easily covered with flexible material.
Patent DE-4107748-A1 (DE)
Title: Locking pivot mechanism for seat back - uses pivot element and cam disc respectively associated with movable and stationary elements
Inventor: FUKUMOTO TAKASHI
IPC: A47C1/026
Filed: 1991-03-11
Abstract: The pivot mechanism is used to adjust the angle of a seat back relative to the seat pad. The mechanism has 2 elements (A,B) respectively attached to the seat pad and the seat back, coupled via a pivot element (3) having a pivot axis (6) extending through the centre of a semicircular cam disc (2), which has an extension (14) secured to the stationary element (A). The pivot element (3) is secured to the movable element (B) via an attached extension (4), which pivots about the pivot axis (10) together with the pivot element (3), or which pivots separately about its own pivot axis (40). A cam (5) blocks further pivoting of the extension (4) to lock the required angular adjustment. ADVANTAGE - Allows adjustment over wide pivot angle.
Patent DE-4109113-A1 (DE)
Title: Ring spinner - has three rows of sliver cans on each side at the base below the spindle rail
Inventor: BRUNK NORBERT DR
IPC: D01H1/18
Filed: 1991-03-20
Abstract: The ring spinner is an upright type, with rows of sliver cans on each side on the machine base, below the spindle rail. ADVANTAGE - The arrangement allows finer slivers to be delivered from cans, than with conventional equipment, without increased mfg. effort
Patent DE-4112790-A1 (DE)
Title: Welding device for welding together glass frames - has several pairs of conduction and activation elements connecting electrodes to power source
Inventor: BOKESCH MARTIN
IPC: B23K11/31
Filed: 1991-04-19
Abstract: Welding appts. for welding together glass frames comprises several pairs of conduction and activation elements (27,28) which connect the electrodes (18,19) to the electrical source as well as move one of the electrodes (19) so that the pair can perform the welding process. The number of pairs of electrodes correspond to the number of welds required on the frame. The pressure applied to the weld area is controlled by the drive mechanism of the elements, (27,28). ADVANTAGE - The appts. can be rapidly changed to adapt to different types of glass frames thereby reducing the cost of prodn. for the frames.
Patent DE-4116280-A1 (DE)
Title: Photo-acoustic-type gas analyser - includes resistance flow sensor, esp. for carbon di:oxide determn.
Inventor: AIDAM ECKHARD
IPC: G01N21/37
Filed: 1991-05-17
Abstract: In a gas analyser with a pulsed selective radiation source, a measuring chamber having a radiation transparent front face and test gas inlet and outlet lines, and a pneumatic/electric transducer in pressure connection with the measuring chamber, the novelty is that the transducer is a resistance flow sensor (6) which operates according to the anemometer principle and which is connected to the measuring chamber (1) and to a gas-filled equalisation chamber (8). USE/ADVANTAGE - The gas analyser is esp. used for determining CO2 contents in test gases. It can be operated with minimal maintenance costs even under severe conditions (vibrations and aggressive test gas).
Patent DE-4118140-A1 (DE)
Title: Plaster-of-paris models - are attached to dental articulator using permanent magnets and discs of magnetic material
Inventor: FEYEN HANNS JOACHIM
IPC: A61C13/34
Filed: 1991-06-03
Abstract: The dental articulator has a fixed arm (2) and a swinging arm, each of which receives a baseplate (1) for attaching a plaster of Paris model. Each arm is fitted with two small magnets (17) in the shape of round pins and a disc of magnetic material (15) is fitted in a recess between the magnets. The baseplate (1) has two sockets (19) to receive the magnets and a circular metal plate (18) is fitted in a recess between the magnets to complete the magnetic circuit and hold the baseplate to the arm (2). USE/ADVANTAGE - Attachment of plaster of Paris models to an articulator by a method which permits easy removal.