baber/WOPTO huggingface dataset:
Patent DE-1806874-A1 (DE)
Title: Modification of solvent and hardener for curing epoxy
Inventor: EDWARD STOLTON RALPH
IPC: C08G59/68
Filed: 1968-11-04
Abstract: Modification of solvent and hardener used in curing epoxy-resins. The hardener contains 45-55% by wt. diaminodiphenylmethane; (salicylic acid added as accelerator). The solvent contains 50-90% by wt. sulpholane + 50-10% by wt. dimethylsulphoxide or cyclohexanone. The mixture of solvent and hardener is stable enough to remain liquid and active during storage for 6 months at 20 deg.C. 100 ppw liquid epoxy resin (epoxy equivalent wt. = 185-215; viscosity = 12-18 poise at 25 deg.C) was treated in a mould at 0-5 deg.C with a curing mixt. of 25 ppw 4,4'-diamino-diphenylmethane + 16.7 ppw sulpholane + 4.15 ppw dimethylsulphoxide + 4.15 ppw salicylic acid. The moulding was hardened at 0-3 deg.C for 7 days and was found to have satisfactory properties.
Patent DE-1904520-A1 (DE)
Title: Determination of hardness of elastic - materials
Inventor: JOSCHKO DIPL-PHYS GUENTER
IPC: G01N3/42
Filed: 1969-01-30
Abstract: An impact point of definite shape which is suspended on a balance arm, is brought to rest on the upper surface of the test sample mounted under the balance arm. Weights are removed or added to upset the equilibrium of the arm so that the impact point bears on the sample, which is then raised to restore the equilibrium. Penetration of the impact point under the known load can be measured.
Patent DE-1915973-A1 (DE)
Title: Two-state refrigerator automatic defrosting - dish
Inventor: EULE WERNER
IPC: F25D21/14
Filed: 1969-03-25
Abstract: A reinforced plastic dish, made under the vacuum process, is mounted on top of the compressor housing so that the heat will assist in the evaporation of the melt of the condensate. The plastic may be polyester, suitably reinforced with cellulose, polyamide or glass fibres.
Patent DE-1925823-A1 (DE)
Title: Phosphates in very finely divided form with - regulated bulk density
Inventor: GERHARD GRAMS DR
IPC: C01B25/32
Filed: 1969-05-21
Abstract: Very finely divided orthophosphates are produced from H3PO4 and soluble chlorides of group (II) elements or Al by mixing to clear soln. or paste at MeO:P2O5 or Me2O3:P2O5 molar ratio 0.6-3.5 and spraying mixture into countercurrent or parallel inert gas stream at 190-450 degrees C, as in 1.196,166, but, before spraying, soln. of paste is treated with NH4Cl or H3 to increase or with H2SiF6 to reduce bulk density. Process enabless bulk density to be optimised according to intended use. Products can be used in lacquers and as anticaking agents, where high bulk density is required, and to regulate quality of technical materials of varying bulk density.
Patent DE-1936575-A1 (DE)
Title: Finishing of human hair, wool or cotton
Inventor: VOLKER BOELLERT DR DIPL-CHEM
IPC: D06M14/02
Filed: 1969-07-18
Abstract: Keratin and cellulose fibres, are finished by polymerising N-vinylpyrrolidone and a vinyl cpd. of formula: H2C=CRR' where R = H or CH3 and R' = -COOR" or -COOH and their salts, -O-R" or -O-COR" and R" is an alkyl gp. opt. substd. by OH, -NH2, -CH2OH, aryl or cyclohexyl substituents in the presence of the fibres. The fibre properties, e.g. elasticity and washability, are improved. In an examples N-vinyl pyrrolidone and methyl methacrylate were polymerised in aqueous medium in the presence of woll cloth.
Patent DE-1941997-A1 (DE)
Title: Colloidal state lead battery
Inventor: TERAE KIYOSHI
IPC: H01M10/10
Filed: 1969-08-18
Abstract: Collodial state lead battery, particularly one hermetically closed. The electrolyte is brought into a silica gel colloidal state by charging the battery immediately before the electrolyte turns yellow. The electrolyte in liquid state contains an admixture of cathode-active material.
Patent DE-2016949-A1 (DE)
Title: Fibre reinforced plaster
IPC: C04B16/06
Filed: 1970-04-09
Abstract: Plaster containing lime, cement, gypsum and some sand and fine gravel is reinforced by the addition of synthetic fibres, pref. or plastic or glass. Usually the fibre is only added to therough plastering material and not the surface plaster.
Patent DE-2018447-A1 (DE)
Title: Making discharge electrodes for tubular electrostatic precipitators
IPC: B03C3/41
Filed: 1970-04-17
Abstract: Method of arranging toothed strips as discharge electrodes in electrostatic precipitators, pref. with tubular deposition electrodes, consists of fixing the serrated strips at their top ends to prevent rotation, letting them hang free, and twisting their lower ends to align them and rotate the teeth to the desired uniform angular displacements. This enables the electrodes to be formed from flat strtip, rolled, sent to site, then twisted to the desired form on site.
Patent DE-2030361-A1 (DE)
Title: Lime firing kiln with axial burner for delayed ignition mix
IPC: F27B1/00
Filed: 1970-06-19
Abstract: The kiln is fitted with wall mounted burners, a flue gas suction device and a centrally disposed burner below the combustion zone. The fuel being injected by the central burner is screened by a protective gas resulting in its mixing with the air of combustion and consequent ignition only after it has risen to a zone between the burner and the combustion zone. The protective gas used is flue gas taken out from the furnace at a suitable location. The central burner is supported by its supply pipes, which are coaxial. The delayed ignition of the fuel injected by the central burner greatly increases its otherwise short service life.
Patent DE-2042494-A1 (DE)
Title: Heat conducting pastes - mixture of zinc oxide and low viscosity epoxide esp for transistorised equipment
IPC: H01L23/42
Filed: 1970-08-27
Abstract: Heat developed at electrical insulators and assembly points in electronic equipment, is conducted away by connecting the parts with a heat conducting paste consisting of 2 pts. of low-viscosity epoxide resin, esp. Araldite (RTM) and 1 ZnO. The mixture can be cured by adding to 3% curing agent to prevent flow on heating. No vapours are given off by the paste.
Patent DE-2049257-A1 (DE)
Title: Hot rolling special metals - in a protective capsule of a second metal
IPC: B21B9/00
Filed: 1970-10-07
Abstract: Special metals and alloys, partic. those of groups IVa, and Va and VIa are wrapped in Zr foil before being welded inside a casing of another metal, in which state they are rolled down to the desired thickness. After rolling, the outer casing is cut off and the Zr foil removed by wire brushing. The foil prevents welding together of the two metals and diffusion of elements from the casing. Suitable metals for treatment this way are Ti, Hf, Nb, Ta, Cr.
Patent DE-2063067-A1 (DE)
Title: Storing and mixing effluent purification waste
IPC: B03B9/06
Filed: 1970-12-22
Abstract: Apparatus for the storage, draw-off and mixing of picked-up waste arising particularly in effluent, comprising, in known manner, a bin-loader with an endless conveyor carrying the waste deposited in the storage bin of the bin-loader to a disintegrating and discharge device fitted at the end of the filler box, with the improvement whereby a scraper assembly is arranged above the storage bin acting in the opposite direction to the direction of transport of the waste and sloping from the discharge outlet in the direction of the centre of the bin, so that it returns waste dammed up in front of and rising over the top of the discharge outlet, back to the centre of the bin.
Patent DE-2064959-A1 (DE)
Title: Automatic surface flaws detector
IPC: G01N21/89
Filed: 1970-01-15
Abstract: Automatic surface flaws detector has comparator with low pass filter controlling scanning.
Patent DE-2113465-A1 (DE)
Title: Hollow graphite electrode - for electric arc furnaces with replenishable amorphous carbon plug
Inventor: ADOLF SIXEL GUSTAV
IPC: H05B7/085
Filed: 1971-03-19
Abstract: A hollow graphite electrode for electric arc furnaces, with a ratio of the cross section of bore to total cross section of 1:4 has at the bottom end a plug of amorphous C. As this burns off, it is replenished by a C mixt. which is filled from the top and sinters at the heat near the end to extend the plug which has burned up.
Patent DE-2147602-A1 (DE)
Title: Smelting iron-contg pieces - in electric arc furnace while protecting furnace lining
IPC: C21C5/52
Filed: 1971-09-23
Abstract: Smelting solid, small-sized Fe-contg. material (I) in an electric arc furnace by process where (I) is charged continuously into arc zone of furnace starting from moment where furnace lining is still protected from arc heat-radiation by a wall of non-smelted Fe scrap batch, is effected by operating furnace at start of smelting of batch present in furnace with a short powerful arc, so that deep and narrow smelting craters are formed in batch present in the shortest possible time; continuously supplying (I) after convergence of smelting craters in lowest zone in centre of common sump, with min. slag formation, at rates such that the arcs burn on (I) and that smelting energy supplied is consumed mainly for smelting (I), so that scrap-envelope protecting the furnace-lining remains non-smelted for longest possible time.
Patent DE-2147824-A1 (DE)
Title: Appts for hypostasis - with thermoplastic test tube
Inventor: HAMPEL HEINZ
IPC: G01N15/05
Filed: 1971-09-24
Abstract: A hollow needle is embedded in one of the closed ends of the thermoplastic test tube. The other end is closed by a cap. For filling the test tube, the needle is pushed through the stopper of the container with the blood sample.
Patent DE-2148604-A1 (DE)
Title: Microcrystalline magnesium aluminium oxide hydrate - - formed from sodium aluminateand magnesium oxide
Inventor: RAMBACHER PAUL DIPL-CHEM DR
IPC: C01F7/162
Filed: 1971-09-29
Abstract: Microcrystalline magnesium aluminium oxide hydrate, for use as a white pigment in the coating industry, is made simply and rapidly by reacting sodium aluminate soln. with MgO suspension. The Mg/Al ratio should be 1:1 to 2:1. The mixt. is refluxed for 4-6 hrs., cooled to ambient temp. NaHCO3 is added if desired, and the prodt. is filtered, washed and dried. Pref. the sodium aluminate is made by dissolving this substance in water at 20-100 degrees C (60-70 degrees C). The pigment is easily espd. from the mixt., has good, non-fading whiteness and does not bloom.
Patent DE-2165979-A1 (DE)
Title: Poly-2,4-bis maleinimidotoluene - used for mechanically strong mouldings and in fibre reinforced windings
IPC: C08G73/12
Filed: 1971-06-01
Abstract: Title polymer is obtd. by heating the monomers e.G. 2,4-bismaleinimidotoluene, above their m.pt. for several hrs. Polyaddn. begins at 175 degrees C and polymsn. temp. is esp. 220 - 250 degrees C. The prodt. is dense, pore-free and insol. in org. solvents (density 1.37 g/cm3). It has a 3D cross-linked amorphous structure and melts only on heating to >420 degrees C. Its mechanical props are maintained at >200 degrees C. Its use in fibre reinforced windings is as in P2,124,740.
Patent DE-2240765-A1 (DE)
Title: Urinalysis procedure - using flow refractometer, automatic nephelometer, and special microscope slides
Inventor: GRUBB JOHN J
IPC: G01N33/493
Filed: 1972-08-18
Abstract: Procedure for carrying out urinalyses, comprising: (a) inserting a multiplicity of test-tubes into a centrifuge rotor having numbered openings to receive them; (b) successively sucking a measured quantity from a multiplicity of urine samples into an instrument which has means for illuminating the samples, and measuring the specific gravity of the samples and making corresponding entries on test curves; (c) emptying the samples from the instrument into the appropriate test-tubes; (d) centrifuging the samples in order to separate sediment from the liquid and collecting the sediment at the bottom of the test-tubes; (e) adding a reagent to the centrifuged samples to give a turbidity corresponding to the protein content of the samples, measuring the turbidity with an instrument which indicates the protein content of each sample and entering the indicated values on the appropriate test surves; (f) pouring the supernatant from the test-tubes; and (g) mixing the sediment remaining in each test-tube, applying a measured amount of the sediment from each sample on the surface segments of a circular microscope slide, placing an annular cover slip on the circular slide, placing the slide under a microscope, examining the sediment on each surface segment of the slide, and entering the results of the microscopic examination on the appropriate test curves. By using a flowing refractometer with a light source to illuminate at least part of the sample, the steps of measuring out the sample, determining the specific gravity, and transferring the sample to a test tube can be carried out as a single operation; at the same time sugar content can be determined using test strips, avoiding a separate operation. Protein content is determined automatically using a nephelometer. Used of a circular microscope slide with defined segments increases the accuracy of the microscopic examination of the sediment. The urinalysis can be carried out in between one-third and one-half of the time required for conventional urinalyses.
Patent DE-2249346-A1 (DE)
Title: G-Strophanthin derivs prepn - for treating cardiac insufficiency
Inventor: LOESEL WALTHER DR
IPC: C07J19/00
Filed: 1972-10-07
Abstract: Derivatives of formula (I) (where R1 and R2 are H, lower alkyl, lower alkenyl or phenyl, or may be linked so as to form a cycloaliphatic residue), which are better absorbed, less rapidly eliminated, and less toxic than g-strophanthin, are prepared by reacting g-strophanthin with an acetal or ketal of the formula R1R2C(OR3)2 (where R3 is lower alkyl) in the presence of an acidic catalyst.
Patent DE-2261641-A1 (DE)
Title: Carbon component prepn from chlorinated PVC - by two stage heating immediately to 150-260 degrees C followed by high temp treatment
Inventor: OETTINGER WILLI DR
IPC: C04B35/52
Filed: 1972-12-16
Abstract: Carbon and graphite components are produced from chlorinated polyvinyl chloride filled into moulds and charged into furnaces at 150-260 degrees C causing the formation of a moulded component which is removed from the mould and reheated in an inert atmosphere to >260 degrees C pref. 500-1500 degrees C for complete carbon conversion followed by an opt. graphitisation treatment at 2500-3500 degrees C. This yields a hard abrasion resistant carbon material.
Patent DE-2312564-A1 (DE)
Title: Reverse flow ion exchange column - with resin beds held in flexible supports
Inventor: AGG JOZSEF
IPC: B01J47/022
Filed: 1973-03-14
Abstract: Reverse flow in resin ion exchange beds is achieved by supporting the bed in flexible rubber membranes which allow the bed to expand and contract, whether actually treating water or being regenerated. A constant pressure is maintained on the membranes at each end of the columns by having pressurised chambers, using raw water pressure. The liquors are introduced via flexible rubber hoses at each end, being passed through ceramic or plastic filter elements on both inlet and outlet lines.
Patent DE-2328243-A1 (DE)
Title: Palladium-nickel alloy electrodeposition - from an electrolyte containing a palladium and nickel salt and a brightener
Inventor: OBERMEIER FRIEDRICH KARL
IPC: C25D3/56
Filed: 1973-06-02
Abstract: A bright decorative Pd-Ni electrodeposit having a hardness of 550 Vickers is obtd. by using an electrolyte which contains Ni chloride in solution and Pd chloride at a wt. ratio of 10 p.b.w. Pd to >=1 p.b.w. Ni, and organic sulphonic acid as brightener and a non-ionic wetting agent. The bath has a temp. of 20-40 degrees C and is used at a current density of 0.5-2.0 A/dm. Its pH value is 7.5-9.0.
Patent DE-2334355-A1 (DE)
Title: Antiprotozoal 1,3-diphenyl-(thio)ureas - prepd. by reacting substd. phenyl iso(thio)cyanates with substd. anilines
Inventor: RAETHER WOLFGANG DR
IPC: C07C317/42
Filed: 1973-07-06
Abstract: Cpds. of formula (I): (where R is H, Cl, Br, CH3, CF3, OCH3, or NO2; R1 is 1-3 C alkyl, alkoxy or alkylthio or 2-3 C alkenyloxy (substd. by 2-6 F-atoms and opt. substd. by further halogen atoms), cyclohexyl, phenoxy (mono- or di-substd. by Cl and/or CF3), 1-2 C alkylsulphonyl (opt. substd. by halogen), fluorosulphonyl, phenylsulphonyl (substd. by NO2, NHCOCH3 or N=CH-N(CH3)2) or the gp. -SO2-(p-C6H4)-NHCONH-C6H4R1 (in which R1 is 1-2 C alkoxy or alkylthio or vinyloxy at least monosubstd. by halogen); R2 is H, halogen, or halo-substd. 1-2C alkyl alkoxy or alkylthio or vinyloxy; R3 is H, Cl, CF3, OCH3 or NO2 (R3 not being H when R2 is H); R4 is H, Cl or CF3; and X is O or S), are useful as antiprotozoal agents, partic. against coccidiosis.
Patent DE-2341846-A1 (DE)
Title: Drag anchor for floating breakwater - is thin box of soft impermeable material with reinforced edges and weighted floor wall
Inventor: NISHIWAKI NIICHI
IPC: E02B3/06
Filed: 1973-08-18
Abstract: Drag anchor for a floating breakwater is fitted between the main anchor and the breakwater and connects to both; it consists of a soft, water-impermeable material, shaped like a thin box with sidewalls and a floor wall to which wts. are fitted. The anchor can sink to a depth of water greater than half the wave depth of the oncoming waves. Preferably the anchor's edges are reinforced with ropes, wires or iron bars. The dimensions of the floor wall correspond to the projection of the breakwater. The connectors to the breakwater are at the corners of the anchor, and consists of rods. The anchor prevents a perpendicular motion of the breakwater.
Patent DE-2351187-A1 (DE)
Title: N-formyl-(meth)acrylamide prodn - by manganese dioxide oxidation of N-methylol-(meth)acrylamide
Inventor: JUNEK HANS PROF DR
Filed: 1973-10-11
Abstract: N-Formyl-(meth)acrylamide is produced in a simple manner by oxidising N-methylol-(meth)acrylamide with MnO2 in the presence of organic solvents. pref at 60 degrees C in ether. Prods. are useful for formation of homopolymers byvinyl polmsn.
Patent DE-2351614-A1 (DE)
Title: Sand moulding machine - where vertical movement of pre-filling hopper controls height of sand across a sand-box
Inventor: OHLE NORBERT
IPC: B22C5/12
Filed: 1973-10-15
Abstract: In this machine, a pre-filling hopper moves vertically up and down above a sand-box which slides horizontally between the hopper and a position where it is over the mould, the hopper being fitted with a trickling plate. The vertical movement of the hopper is controlled so that the height of the sand left in the sand box is higher in the regions of greater compressibility than in the other areas. Hydraulic cylinders are used to adjust the height of the hopper by means of a master bar which has a section cut out of its upper surface to correspond with the desired movement of the hopper; a roller mounted on the end of a lever runs along the bar and actuates the vertical travel of the hopper. Uniform compacting of the sand in the moulding box is achieved.
Patent DE-2361157-A1 (DE)
Title: Radiation-curable resin compsn. for coatings - consisting of radical-polymeri-sable resin, and filler composed of powdered ferromagnetic material
Inventor: TSUKAMOTO KENKICHI
IPC: C08K3/00
Filed: 1973-12-07
Abstract: Radiation-curable resin compsn for the prepn of a thin film contains (I) a radical-polymerisable resin and (II) a filler, at least partly composed of a powdered ferromagnetic material, the amt of this material being 1.5-998 pts wt per 100 pts wt radical-polymerisable resin I.I. Pref. is a polyester ester resin having an av. mol wt of 500-4000, and a double bond equivalent of 200-2000, an acrylic resin having an av. mol wt of 500-4000 etc.
Patent DE-2364488-A1 (DE)
Title: Elastic lace and cord - with parallel filling threads
Inventor: HADLICH HELLMUTH
IPC: D04C1/12
Filed: 1973-12-24
Abstract: Elastic lace and cord produced on braiding machines has superior qualities and is cheaper to mfre. when, alongside and parallel to the internal rubber threads, bulky fibrous yarns are tied in by the braiding threads. The drawing off of the product is controlled so that between successive braiding threads there is a space, and on retraction of the elastic threads, the bulky yarns are stacked up to give a smooth nap.
Patent DE-2402922-A1 (DE)
Title: Table with extendable panels - main panel parts connected by rods with mutually displaceable single rods supporting leaf
Inventor: KNEILE KARL
IPC: A47B1/08
Filed: 1974-01-22
Abstract: Extending table has a panel divided into 2 equal main parts and a leaf which can be inserted between these when extended. The 2 main panel parts are attached to separate posts of the frame, relatively movable in the direction of extension and each having its own standing surface. The main panel parts are connected together by at least one connecting rod consisting of at least 2 mutually longitudinally displaceable single rods and which, in the extended state, form a mounting for the leaf. With simple, secure mounting of the table top panel, a high degree of stability is obtained.
Patent DE-2406388-A1 (DE)
Title: Conversion of non-floating to floating soap - by incorporating voids, lightweight filler or balloon-structures
Inventor: KLEIBER CHRISTIAN HEINZ
IPC: C11D17/02
Filed: 1974-02-11
Abstract: In order to lower the specific gravity of the soap, either one or more cavities are present in the soap or a low-density filler or one or more balloon-like structures are incorporated into the soap.
Patent DE-2410149-A1 (DE)
Title: "C"-section sealing rings - wall thickness of C-section is increased at edges and middle portion
Inventor: RUF MAX
IPC: F16J15/08
Filed: 1974-03-02
Abstract: Ring is C-section with the open side of the C facing in an axial direction. The ring is utilised in an annular gap and is subjected to radially inner and/or outer loads, for example by gas pressure. The section of the C varies so that it is thickened at the edges and at its middle portion relative to its side and corner portions. This results in the even distribution of stress in the ring as a result of the applied bending strains due to load. Rings may be punched by a fly pass from flat rings of etched or profiled sheet steel and the orientation of "C" section may be varied so that open side faces radially inwardly or outwardly.
Patent DE-2416677-A1 (DE)
Title: Centreless magnetic polishing device - using electro magnetic rotary heads and ferro magnetic grit
Inventor: MAKEDONSKI BORIS GEORGIEV DIPL
IPC: B24B5/22
Filed: 1974-04-05
Abstract: The workpiece is rotated between two cylindrical rollers, in between which it is supported by a strip of metal with a sharp edge. The workpiece is supported above the plane which passes through the centrelines of the rollers. The centreline of one of the rolles crosses that of the other roller, so that the workpiece is moved in an axial direction. The angle at which this centreline crosses can be adjusted. Electro-magnets are mounted in the cylindrical rollers in such a way that adjacent rings mounted round the electro-magents form magnets of differing polarity. The two cylindrical rollers with magnets rotate at different speeds, so that there is slip between the surface of the rollers and that of the workpiece. Guide rings for the workpiece are mounted between the electro magnets. The workpiece is supported on these rings. The ferro-magnetic polishing grit is retained by the magnets between the support rings.
Patent DE-2423939-A1 (DE)
Title: Ashtray with motor driven cigarette end extinguisher - photodiode actuated by heat to operate motor drive cct. to rotate cover
Inventor: LUEHRS OTTO
IPC: A24F19/09
Filed: 1974-05-16
Abstract: An ashtray with an electrically operated automatic cigarette end extinguishing mechanism has a cover (20) with an area (26) on which the lighted cigarette end is placed, and underneath which is a photo diode (2) incorporated in a transistor circuit, and operated by the heat of the cigarette end, so that the circuit conducts and drives a motor (16) connected by gearing (22) to a disc (19) underneath so that the disc rotates until a hole aligns with the cigarette end and, allows it to fall into the container below. A switch (3) on the cover may be operated to cause rotation instead. A magnet (23) on the disc actuates a reed relay to cut off the power supply to the motor.