baber/WOPTO huggingface dataset:
Patent DE-4020752-A1 (DE)
Title: Identification of products in supermarket - using label code that depends upon acoustic resonance characteristic of metal label
Inventor: SCHICKEDANZ WILLI DIPL ING
IPC: G06K7/10
Filed: 1990-06-29
Abstract: The product coding system is based upon a label with a pattern formed in a thin metal strip. The principle of operation is based upon acoustic excitation of the strip which is dependent upon the pattern. Typically the pattern is formed by a series of rectangular slots. The label (12) is fixed to the product (11) and is set in resonance by the output of an acoustic generator (14). The resonating field is detected by a microphone (16). Both generator and microphone can be located well clear of the product. ADVANTAGE - Label reading does not require close positioning of sensor.
Patent DE-4020856-A1 (DE)
Title: Stable aq. soln. of sodium peroxo:mono:sulphate prepn.
Inventor: BERTSCH-FRANK BIRGIT DR
IPC: C01B15/08
Filed: 1990-06-29
Abstract: Aq. solns. of Na peroxomonosulphate (NaHSO5) (I) contg. 5-50 wt.% of (I) are prepd. by partial neutralisation of a soln. contg. Caro's acid, (H2SO5), H2SO4 and less than 3 pts. wt. of H2O w.r.t. 100 pts. wt. of Caro's acid, at below 50 deg.C, with NaOH or Na2CO3, up to an equiv. ratio of total SO3: Na ions of 1 : 1-1.3, and opt. adjusting the content of NaHSO5 by dilution with water, or distn. of water under reduced pressure during or after the neutralisation. The soln. contg. Caro's acid and H2SO4 is prepd. by converting H2SO4 or oleum with at least 50 wt.% aq. H2O2, or electrolysis of an at least 30 wt.% aq. H2SO4, followed by hydrolysis of the peroxodisulphuric acid formed.
Patent DE-4028596-A1 (DE)
Title: Equipment for sinking shafts -  uses widening tool fixed to supporting and guiding tube which is inserted in pilot hole
Inventor: CONRAD ECKHARD DR ING
IPC: E21B7/28
Filed: 1990-09-08
Abstract: The equipment is used for sinking shafts for mines. A hole is first drilled and subsequently enlarged to the required cross-sectional size by a widening machine. A bearer and guide tube (2) is inserted into the pilot hole, and to this the widening tool (5) is attached, and this can move up and down to carry out the widening process. The guide tube (2) is braced against the shaft sides (18) by expandable trench props (17) where the widening process has been carried out. Muck arising is removed by a conveyor worm in the guide tube (2). USE/ADVANTAGE - A reliable location and guiding of the widening tool is achieved without anchoring it to the shaft sides.
Patent DE-4032963-A1 (DE)
Title: Liq. chromatography column analysis of specimen components marked - in heated reaction to aid separate extraction
Inventor: FUJII YOSHIO
IPC: G01N35/00
Filed: 1990-10-17
Abstract: A series of liq. chromatography specimens at constant temp. are treated with a marker agent, producing a mixt. contg. marked components, which are sepd. from each other and individually quantified, e.g., from the intensity of fluorescence. A controller reduces average analysis time per specimen by operating the successive stages simultaneously where possible.  Marked components are sepd. from a column, supplied with the reaction mixt. by a suction and discharge nozzle freely mobile in three dimensions. A separate unit enriches the initially formed mixt. before seog. the marked components. USE - Esp. for catecholamine found in biological and pathological specimens and requiring relatively large scale clinical determination; marking ensures this is applied to cpds. initially present in the specimens.
Patent DE-4033622-A1 (DE)
Title: Handle for boot lid for private car - is swung into interior of boot when lid is closed
Inventor: HAENEL JOACHIM
IPC: E05B83/24
Filed: 1990-10-23
Abstract: A private car has a boot lid (25) or an upward swinging rear door which can be swung open by a handle (2). The handle (2) is rigidly connected to a lever (17) which pivots on a shaft (18) mounted inside the boot. When the boot lid is closed the handle (2) is swung into the interior of the boot through hole (16). This hole is sealed by a disc (26) fitted with a sealing ring. The disc is attached to a curved lever (1) to which a cover plate (3) is attached by link (6). When the cover plate (3) is swung upwards the attached lever (13) actuates the lever (17) so that the handle (2) is swung into the interior of the boot. The hole (16) is then sealed by the sealing disc (26) which is then covered by the plate (3) which fits flush with the body contour. USE/ADVANTAGE - The boot lid handle is protected from mud splashes.
Patent DE-4037106-A1 (DE)
Title: Hair-curler with oblong body - is of drop-shaped cross-section
Inventor: GALLE GUENTER
IPC: A45D2/14
Filed: 1990-11-22
Abstract: The hair-curler with oblong body is for water and permanent waving. The body (2) is of drop-shaped cross-section, with opposite curved portions (3, 4) of large and small radius. The portion with the larger radius can be roughly semicircular, while the radius of the other one can be many times smaller. The intervening portions can be tangental, and arched slightly outwards. ADVANTAGE - Forms long-lasting waves looking as natural as possible.e
Patent DE-4101215-A1 (DE)
Title: Hot melt adhesive bonding of large area parts - using adhesive-coated electrically heated wire
Inventor: GRUBER BRUNO
IPC: B29C65/34
Filed: 1991-01-17
Abstract: A melt adhesive bonding process for large surface area parts involves (i) inserting, between the parts, a heating wire (1) which is coated with an adhesive film; (ii) passing current through the wire (1) to melt the adhesive; and (iii) holding the parts in position for a certain time after switching off the current. ADVANTAGE - Large surface area parts can be rapidly and reliably bonded together.
Patent DE-4101336-A1 (DE)
Title: Inactivation of bactericidal sanitary chemical contg. quat. ammonium cpd. - by addn. of anionic cpd. before release into biological sewage treatment plant
Inventor: BLOEDHORN-DAUSNER RAINER
IPC: C02F3/34
Filed: 1991-01-17
Abstract: In a bactericidal sanitary chemical (WC chemical) contg. quat. ammonium cpds., the bactericidal action of the quat. ammonium cpds. is inactivated, before feeding into a biological sewage treatment plant, by addn. of a substance with anionic action, so that no harmful effect is produced on the activated sludge. The quat. ammonium cpds. are of formula (I) and the inactivating anionic substances are R5-COO- A+, R5 - SO3 - A+, R5 - PO3H- A+ or R5 - CO -(SO-3)CH- CH2 - COO- A+ or is a commercial lignin sulphonate. R1, R2 = 1-2C alkyl; R3 = 81-18C (un)satd., (un)branched hydrocarbon chain; R4 = R3 or benzyl; An- = an anion, e.g.. halide, acetate, sulphate or phosphate; A+ = alkali metal or NH4; R5 = 8-20C (un)satd., (un)branched hydrocarbon chain, or (II) R6 - O- or R6 - O(C2H4O)n; R6 = R5; n = 2-6. USE/ADVANTAGE - The chemicals are used in mobile WC systems, e.g., on building sites, in coaches and aircraft, and on camping sites. The compsn. kills pathogenic agents, but does not affect the activated sludge. The additives form water-insol. salt-like complexes with the quat. ammonium cpds.; these are removed from the waste water.
Patent DE-4102232-A1 (DE)
Title: Material moisture content measurer using IR drying and weighing principle - fixes blank sample near measurement sample while latter is on weighing pan having base coupled to temp. sensor of low heat retention capacity
Inventor: POLTE EVELYN
IPC: G01N5/04
Filed: 1991-01-23
Abstract: The temp. loading of the sample (1) is limited by regulating the i.r. radiation power by means of a temp. sensor (2) of low heat capacity placed at the base of a blank sample weighing pan (3) next to the measurement sample pan (4). Both samples are subjected to the same radiation. The sensor is covered by a ring (6) of poor heat conductance at the base of the blank sample pan. The relation of the base surfaces of the measurement sample pan to the blank sample pan is equal to the relation of the moisture of the measurement sample ot the blank sample (5). The round container (12) protects against temp. and interference effects including for the weighing cell underneath. Leads (11) connect the temp. sensor to electronics. ADVANTAGE - Reduced drying and measuring time.
Patent DE-4105537-A1 (DE)
Title: Fungicide and bactericide for industrial and domestic disinfection - contains quat. ammonium cpd. based on pyridine, quinoline or isoquinoline
Inventor: LUTHARDT HORST DR RER NAT
IPC: C07D215/10
Filed: 1991-02-22
Abstract: A fungicide and bactericides, esp. for the control of harmful microorganisms in industry and for sanitation, contains conventional auxiliaries and carriers and, as active ingredient, a quat. ammonium cpd. of formula (I), where -N) is opt.-substd. pyridine, quinoline or isoquinoline; R1 is H or alkyl; R2 is alkyl, haloalkyl or aryl; R3 is H or alkyl; or R2 and R3 together form a cycloaliphatic ring e.g. R2R3 is -(CH2)n- where n is 3-6; X is Cl, Br or I. USE/ADVANTAGE - (I) have better bactericidal and fungicidal activity than previous agents and can be used for hygienic purposes in veterinary medicine, to disinfect industrial plants and to preserve prods. In an example, a cpd. (I; N) was N-pyridyl; R1 and R3 were H; R2 was C10H21; X was Cl) was used in a concn. of 0.1% to test for its bactericidal effect in a suspension test. After 1 min. no more growth of Staphylococcus aureus and Escherichia coli was detected and after 2 mins. there was no more growth of Pseudomones aeruginosa. In a concn. of 1.0%, the growth of all three bacteria had stopped after 1 min. for a known cpd., e.g. N,N,N-trimethyl -N-decyl-ammonium bromide, the growth of staphylococcus aureus was inhibited after 60 mins. (0.1% concn.) and after 10 mins. (1.0% concn.), and of the other 2 bacteria after 120 mins. (0.1% concn.) and after 30 mins. (1.0% concn.). In a suspension test for fungicidal activity, the same cpd. (I) used in a concn. of 1.0% stopped the growth of Candida albicans in 5 mins. and Trichophyton mentagrophytes in 2 mins. compared to the known cpd. which, when used in a concn. of 1.0% stopped the growth in 10 mins. in the case of both fungi.
Patent DE-4110136-A1 (DE)
Title: Lacquer system useful in coating lacquered vehicles - comprises film-building linear polymer and adhesion-reducing plasticiser
IPC: B05D7/14
Filed: 1991-03-27
Abstract: Lacquer system (I) comprises: (i) at least one linear polymer as a film builder; and (ii) 5-50 wt% at least one cpd. of formula R1-CO-O-R2-O-OC -R3-CO-O-R2-O-OC-R1 (I) and/or R1-CO-O-R2-O-OC -R3-CO-O-R4-O-OC-R5 (II) of average molar mass 300-5000 as adhesion-reducing plasticiser. In the formulae, R1,R5 = 5-18C aliphatic gp. pref. alkyl; R3 = (un)satd. 4-10C (cyclo)aliphatic or aromatic gp.; and R2,R4 = (un)satd. 2-40C alkyl- or polyether. The mixed lacquer system ready for use has a dry materials content of 5-50 wt%, the remainder being organic, inactive solvent, and is a sprayable homogeneous soln. or dispersion. Also claimed are (i) the prodn. of a film-like, removable, reprocessible coating (II) on an object esp. a lacquered vehicle comprising applying (I) onto an object and drying to produce a film with uncrosslinked, soluble polymers; (ii) a partly or completely coated object produced as above; and (iii) the reprocessing of (II) comprising comminuting the coating, washing with water, removing the water, dissolving in a solvent of b.pt. above 100 deg.C under increased pressure, diluting the soln. and purifying, quantitatively analysing the purified soln. and mfg. a lacquer system (I) by adding any materials which are not present. USE/ADVANTAGE - (I) is used in the coating of objects, esp. lacquered vehicles. A weather-resistant coating is produced which protects the covered object from corrosion and mechanical effects. The coating can be removed by hand after a period of time without damaging the substrate with reduced environmental loading. The coating can be coated on a lacquered vehicle with or without rubber and/or plastic surface regions (claimed), and also glass and chrome surfaces. The coatings have improved mechanical strength
Patent DE-4112658-A1 (DE)
Title: Worm and wheel ball drive - has worm inside hollow shaft driven through balls engaging helical groove in worm
Inventor: ARNDT FRANZ MARTIN
IPC: F16H1/16
Filed: 1991-04-18
Abstract: The worm and wheel ball drive has a worm (1) in the form of a ring with a continuous helical groove formed in its periphery. The worm (1) is mounted in ball bearings (23) to enable it to rotate about its axis. The ring has internal teeth which mesh with the teeth of a pinion mounted on the driving shaft which runs parallel to the axis of the worm. The helical groove engages balls (4) which are retained in shallow recesses in the inside surface of the hollow driven shaft. The balls (4) roll along the helical groove of the worm and are supported on a cushion of lubricating oil which is fed into the supporting recess through a radial hole in the wall of the hollow driven shaft. USE/ADVANTAGE - Worm and wheel drive with very low friction.
Patent DE-4113891-A1 (DE)
Title: Thermoplastic polymer blends useful for prodn. of mouldings, etc. - contain thermoplastic polyurethane obtd. from di:isocyanate, short-chain extender and high mol.wt. cpd. contg. hydroxy or amino gps., opt. fillers or fibres, etc.
Inventor: ORTHMANN ERNST DIPL CHEM DR
IPC: C08L55/02
Filed: 1991-04-27
Abstract: Thermoplastic polymer blends (I) contain (A) 90-40% thermoplastic polyurethane (TPU) obtd. by reaction of (a) not above 50 wt.% di-isocyanate (Aa), (b) short-chain chain-extender(s) (Ab), esp. a diol with mol. wt. at least 63 (pref. 76-399) and (c) a high-mol. wt. OH or amino gp.-contg. cpd. (Ac), pref. with mol.wt. 600-6000; (B) at least 10-60 (pref. 20-50)% thermoplastic aromatic polyester with mol.wt. at least 20,000-100,000 (pref. 25,000-60,000) (with wt. ratio A:B = (90:10)-(40:60)); opt. (C) other thermoplastic component(s) other than polycarbonate (with wt. ratio (A+B):C = (95:5)-(50:50)); opt. (D) normal additives other than vulcanisation aids and opt. (E) fillers and/or fibres. The amt. of component (Ac) is 30-80 wt.% w.r.t. total (Aa-Ac), and the ratio (NCO gps. in Aa):(NCO-reactive gps. in Ab and Ac) = 0.9-1.1. More specifically, (B) is a terephthalate ester, esp. PBT or a polyester obtd. by reaction of terephthalic acid or a deriv. with a short-chain diol and a high-mol. wt. hydroxy cpd., pref. with mol.wt. 600-6000; (Aa) is 4,4'-MDI contg. not above 5 wt.% of the 2,4' isomer, (Ab) is a polyalcohol, polyamine or aminoalcohol with mol. wt. as above and (Ac) is a polyester-diol with mol. wt. 600-6000; (C) is ABS, SAN, polyamide or polystyrene; (I) contains, as component (E), up to 50 wt.% (in)organic fibre and/or other inorganic fillers such as mica or talcum, pref. 10-40 wt.% PU-coated glass fibres; components (Aa-Ac) are injected into a twin-screw kneader at a first feed point, and component (B) (and opt. C and E) is added to the incompletely reacted TPU at a subsequent feed pt. USE/ADVANTAGE - (I) are useful for the prodn. of film, coatings, mouldings, and composites TPU-polyester blends with improved tear resistance, oil and petrol resistance and cold impact strength, high thermal dimensional stability, improved resistance to hot air ageing, low tendency to yellowing and improved high-temp. compression set are prepd. blends (I) are easily processable, even with Shore Hardness D below 72.
Patent DE-4122267-A1 (DE)
Inventor: NAABER MATTHIAS
IPC: B67C3/26
Filed: 1991-07-05
Abstract: The invention relates to a filling element of a new design for filling bottles or similar containers with a liquid material and for use in a filling machine of a rotary type, in which a plurality of similar filling elements are provided on a machine part which rotates about a vertical machine axis, with a casing and with a tubular or rod-like element which is held with a chute in a recess of the casing, sits in the casing in a sealed-off manner in a first region of the chute, using at least one seal and is supported in a second region of the chute outside the seal with one outside surface against the casing and/or against an installation formed in the recess, and with a cleaning channel which is formed in the casing, encloses the tubular or rod-like element on its outside surface and through which a cleaning or rinsing liquid can flow. <IMAGE>
Patent DE-4126787-A1 (DE)
Title: Building electrical installation system, e.g for heating thermostat switches - has centralised monitoring station to determine individual switch positions
Inventor: BECKER ERWIN DIPL ING
IPC: H02J13/00
Filed: 1991-08-14
Abstract: The electrical installation system has a number of individual switches (T1-Tn) and a central interrogation device (10). The respective switch positions are interrogated in response to control signals (C1-Cp) supplied from the interrogation device to a decoder (11) which provides corresponding output signals (A1-An). One terminal of each switch (T1-Tn) is coupled via a common resistant (13) to a high potential level ('H'), the opposite switch terminals receiving the respective output signals (A1-An). The first terminals of each switch (T1-Tn) are coupled to a common response line (A) coupled back to the interrogation device (10). ADVANTAGE - Simplified wiring and reliable function.
Patent DE-4134472-A1 (DE)
Title: Measuring harmonic distortion in AC signal by spectral analysis - digitising and calculating sine and cosine tables from sampled values before correlating with stored signal to determine fundamental and harmonic amplitudes
Inventor: KUFER WOLFGANG
IPC: G01R23/20
Filed: 1991-10-18
Abstract: The method involves detecting the levels of a complete period of the input ac voltage signal section. The levels are digitised and the sampled values (A) stored in a memory. From the number (X) of sampled values, a sine and cosine table is formed for the same period as the input signal section. The amplitude of the fundamental and at least one harmonic of the signal is calculated using discrete Fourier transformation by correlation between the stored signal section and the sine/cosine table. The distortion can then be calculated for the harmonic. ADVANTAGE - Does not analyse whole signal, giving increased speed, e.g. a 10 Hz fundamental can be analysed in less than 250 ms.
Patent DE-4137112-A1 (DE)
Title: Local screen for car electronic control components - is fitted directly to interference causing component, such as microprocessor
Inventor: WAGNER ARMIN
IPC: H05K9/00
Filed: 1991-11-12
Abstract: The electronic components of a car controller, causing electromagnetic interference, are provided with a screen preventing interference radiation. The screen is directly fitted to the respective components, generating the electromagnetic interference. The component, generating the highest electromagnetic interference, ie usually a microprocessor, is thus protected by the screen. Pref. the screen is directly formed by the respective component housing and may be coupled to a voltage source by one or several blocking capacitors. The metal used for the screen has good thermal conductivity. USE/ADVANTAGE - For electromagnetic interference prevention. Simple design and facility for design variations.
Patent DE-4138060-A1 (DE)
Title: Flame ionisation detector for determining hydrocarbon concentration in gas, e.g. air - has burner with additional ignition coil in combustion chamber diametrically opposite first coil
Inventor: RATFISCH WERNER
IPC: F23Q7/10
Filed: 1991-11-19
Abstract: The flame ionisation detector uses a burner into which a combustion gas, e.g. H2, combustion air and a specimen gas are fed. The burner has an ignition coil (30) for igniting the gas mixture in the combustion chamber (20). The burner includes at least one further ignition coil (32) which is arranged in the combustion chamber diametrically opposite the first coil (30).  The combustion air is fed into the chamber separately from the other gases. ADVANTAGE - Improved corona formation around flame gives improved ignition of gases in combustion chamber.
Patent DE-4138983-A1 (DE)
Title: Control of gas charge for four-stroke IC engine - involves inlet and outlet of charge to working cylinder via ports controlled by piston valves
Inventor: MESZAROS STEFAN DIPL ING
IPC: F01L5/04
Filed: 1991-11-27
Abstract: The air or mixture control for a four-stroke cycle IC engine operates without a camshaft and poppet valves. The inlet and exhaust strokes of the working medium are achieved via ports in the cylinder head. The degree of opening of the ports is controlled by piston valves (1,2). The control unit pistons are sealed via piston rings, and are set in continuous motion via the action of connecting rods (3,4) mounted on one or two upper aligned crankshafts (5,6). USE/ADVANTAGE - Four-stroke IC engine with free passage of working medium to and from cylinder.
Patent DE-4141458-A1 (DE)
Inventor: BISCHOF STEFAN DIPL ING
IPC: B41J35/10
Filed: 1991-12-12
Abstract: In a selective printer of the kind in which ink ribbon is provided in a cassette, and in which the cassette is periodically shifted transverse to the printing direction to achieve economy of usage of the ribbon, the ribbon shifter is powered by the paper feeding motor.   As shown (Fig. 3) the cassette lifter cam 9 is gear driven from the paper feed drive wheel 12, the power for both motions being derived from motor 12a. The cassette is of the kind does not move with the print head carriage, but which remains stationary in the machine, and provides a progressively fed stretch of ribbon parallel with the platen, along which stretch the print head reciprocates. <IMAGE>
Patent DE-4141665-A1 (DE)
Title: Analysing spray jet from bottle - heating measurement surface, and measuring temp. before and after spraying
IPC: G01N25/58
Filed: 1991-12-17
Abstract: The method involves homogeneous heating of a temp. sensitive measurement surface (1), switching off the electrical power to the surface, taking a reference measurement, spraying the medium onto the surface and taking a second measurement for comparison with the reference measurement. The method involves a sufficiently large temp. difference between the sprayed medium and the measurement surface. The sprayed medium is at a lower temp. than the measurement surface. The spray container (3) is positioned at a specific distance from the surface related to the container and spray medium. USE/ADVANTAGE - For fully automatic spray jet analysis, e.g. for medicinal spray bottles, to determine the effectiveness of spray containers.
Patent DE-4143307-A1 (DE)
Title: Ball plug with two part housing containing ball-cock - has drive spindle and seals, with guide bolt in drive spindle pin, and includes friction bearing and screw
Inventor: DRAXLER ERNST DIPL ING
IPC: F16K5/06
Filed: 1991-03-27
Abstract: The ball-plug with a two-part (10,11) in which is mounted a ball-cock (6) and a drive spindle (2) for the ball-cock and seals for sealing the drive spindle and ball-cock. A guide-bolt (46) is inserted into the drive-spindle's pin (22), and a friction bearing (45) fits into a hole (47) in the housing's base (46) for mounting the ball-cock. The friction bearing protrudes into a hole (44) in the ball-cock. The guide-bolt is formed by a hollow screw's (43) round head or by a guide-pin stocking into a hole (42) in the ball-cock. A holder (48) with two side cavities (51,52) with cover (55) takes the friction bearing in the housing base. The holder has athreaded hole (57), while the cover has a hole in for screw (56). ADVANTAGE - The ball-plug can be mounted in two positions so that the seals are easily replaced.