baber/WOPTO huggingface dataset:
Patent DE-2137568-A1 (DE)
Title: Grain fodder moistener - with propeller disc to agitate grain and coat this evenly with propionic acid atomiser jets in a housing
IPC: A23K30/00
Filed: 1971-07-27
Abstract: Cylindrical or truncated cone housing with top inlet supplies grain to a spreader disc rotating above a disc below which has slots and blades to form a propeller. This agitates the grain and exposes it longer and more extensively to the propionic acid forced in under pressure from jets mounted in the housing slides above the propeller disc. Cheap, simple in terms of apparatus, reliable and effective coating for long storage life under biologically harmful conditions.
Patent DE-2144899-A1 (DE)
Title: Hydrocarbons gelled with alkoxy cpds contg two different metals
Inventor: WHITNEY THOMAS A
IPC: C10L7/02
Filed: 1971-09-08
Abstract: Gelled hydrocarbon contains, as the gelling agent, a minor amt. of each of MOR and M'(OR')3 (where M is an alkali metal, M' is a Group 3 A metal and R and R' are each 1-25 C hydrocarbyl). The gelled hydrocarbon may be aromatic or aliphatic or it may be a mixture e.g. jet fuel. The two components of the gelling agent are pref. used in about equimolar amts. and the total gelling agent pref. forms 0.75 - 2 wt.% of the gelled hydrocarbons. The pref. cpds. MOR are the Li alkoxides contg. 8-16 C and the pref. cpds. M'(OR')3 are those in which M' is B or Al and R' is a 4-8 C alkyl gp.
Patent DE-2151113-A1 (DE)
Title: Pressure sensitive copying material - with compensated colour former for fadeproofness
Inventor: TAKEGAWA YASUO
IPC: B41M5/136
Filed: 1971-10-14
Abstract: Colour former comprises (A) 3,3-bis-(p-dialkylaminophenyl)-4-, -5-, -6- or -7-diaminophthalide, (B) leucomethylene blue, and (C) rhodamine-anilino-and/or -phenylhydradiono-lactam. This is present as soln. in oil in microcapsules, broken by pressure, in surface coating of pressure-sensitive copying material. This colour former has excellent colour-forming props. and is suitable for use in all types of pressure-sensitive systems. Component (C) compensates for fading and tendency to become green when (A) and (B) reaction prods. are exposed to sunlight.
Patent DE-2163660-A1 (DE)
Title: Coating compsns - contg modified polyacrylates dispersed in vinyl monomers,hardenable by electron radiation
Inventor: JOHNSON OLIN B
IPC: C08G18/62
Filed: 1971-12-21
Abstract: A coating compsn. consists of a dispersion of (A) an ethylenically unsatd. material, which is the reaction prod. of (1) rubber particles of a cross-linked acrylic elastomer with reactive epoxy, OH or COOH gps., derived from a monofunctional acrylate with a reactive epoxy, OH or COOH gp., and (2) an ethylenically unsatd. component with a reactive epoxy, OH or COOH gp., where (1) and (2) are linked together by ester or urethane bonds, dispersed in (B) is not 1 vinyl monomer. The coating is hardened by electron rays and is applied as a film to substrates of, e.g. metal, wood, glass or polymers.
Patent DE-2164655-A1 (DE)
Title: Horizontal rotary shaft furnace - with angularly varying injection rates of fuel/air mixt through circumferential nozzles
Inventor: JENNE OSWALD DR
IPC: C21B13/08
Filed: 1971-12-24
Abstract: Furnace is provided with circumferentially fitted injection nozzles through which depending on their angular position during their rotational path lean air fuel gas mix is injected whilst they are covered by the charge material whilst secondary air is injected when they are above charge level. The rates of injection for the two are maximum when the nozzles are at the highest and lowest postion respectively and are zero when the nozzles are leaving/entering the charge filled segment of the furnace there being a gradual change between these extremes. The furnace is used for the reduction of iron ore or oxide. Its mode of working ensures uniform reducing action on the charge passed through it.
Patent DE-2166979-A1 (DE)
Title: Copier sensing length of original to control cutting from supply roll - accounts for delays in switching at various travel rates
IPC: G03B27/14
Filed: 1971-08-27
Abstract: Copying machine includes a device which senses the length of an original to be copied in order to control the feeding and cutting of a web of sensitive paper so that an appropriate length thereof is obtained, the device comprising one or more elements for sensing the leading edge of the original and one or more elements for sensing the trailing edge of the original the outputs of which are fed to an electronic computer whose control output varies with changes in the rate of travel of the original. Thus the feeding rollers convey the reproduction material past the cutting blades at the same speed as the original after the leading edge of the original is sensed, and the feeding rollers are stopped and the material severed when the trailing edge of the original is sensed.
Patent DE-2203193-A1 (DE)
Title: Highway surface - with polyurethane foam coat on the plastic film covering the polyurethane foam insulation
Inventor: HENNIG WOLFGANG
IPC: E01C3/06
Filed: 1972-01-24
Abstract: An insulating layer of hard polyurethane foam is sprayed beneath the cast concrete of bitumen surface with the foam covered by a plastic film as in parent patents, the improvement being that a thin layer of polyurethane foam reaction mixture is sprayed on top of the plastic film. Pref. the hot bituminous material is poured directly onto this protective layer to form the bitumen surface.
Patent DE-2204870-A1 (DE)
Title: Thickening photographic processing solns - with guar gum and/or carragheen
Inventor: FRIEDEL MURRAY
IPC: G03C5/26
Filed: 1972-02-02
Abstract: The viscosity of photographic solns. is increased by adding a thickening agent, pref. guar gum or carragheen or mixtures. The solns. may also contain a surfactant pref. ethanol, IPA, or dioctyl sodium sulphosuccinate. The solns. are prepd. by adding the photographic cpdS. to an aq. soln. of the thickening agent or, alternatively, the agent may first be dissolved in the surfactant. Pref. quantities are 0.2-0.5% thickening agent and 0-0.5% surfactant. Lower pumping speeds may be used in photo typographic equipment.
Patent DE-2205507-A1 (DE)
Title: Mineral fibre prodn - from inorganic oxides melting at high temp
Inventor: WALZ A PROF DR ING
IPC: C03B37/06
Filed: 1972-02-05
Abstract: Fibres of inorganic materials, esp. of substances contng. a majority of high m.pt. oxides such as Al2O3 are produced by melting the material in a crucible, from a hole in the bottom of which the molten mass drips through a nozzle to allow fibril formation and solidification is effected using a stream of gas. The operation is carried out in a vessel divided into two compartments through which the gas circulates in a closed circuit, the difference in pressure between the inlet and the outlet of the nozzle being such that the air speed in the fibrilising zone reaches a mach number between 0.6 and 2.1.
Patent DE-2225148-A1 (DE)
Title: Enteric bacteria detector indicators - for pathological labs
Inventor: ROLLENDER WILLIAM
Filed: 1972-05-24
Abstract: A transparent container divided by a party wall into two compartments contains two substrates, one entirely covering the second, in one compartment and a third substrate in the other compartment. The first substrate is a gel containing bacteria growth nutrient, amino-acids, and free iron deaminiziation and fermentationindication, electrolyte to promote ionic current sulphur source to produce H2S in presence of given bacteria, and a pH indicator esp. bromocresol violite. The second substrate contains lysin and a decarboxylization detector and the third and indol liberation indication.
Patent DE-2252003-A1 (DE)
Title: Ionic exchangers for water desalination - dil. aq. soln. is sepd. into water and conc. salt soln. by anion and cation exchanges
Inventor: VAJNA SANDOR DIPL ING CHEM DR
IPC: B01J49/08
Filed: 1972-10-24
Abstract: An anion and a cation exchanger are used in series in any preferred order, are regenerated after exhaustion, and reused. Before regeneration, one of the exhausted ion exchangers is pretreated with the used regenerating solution of the other ion exchanger, until the ions removed from the separated solution of the first ion exchanger have been substantially completely replaced by the homologous ions of the pretreatment solution. In the course of this, a more concentrated salt solution than originally introduced is formed in the separated solution, and subsequently reactivates the same ion exchanger with the corresponding regenerating solution, forming a salt solution of the regenerating materials. Salts in dilute solution are to a large extend separated from salt obtained from regenerating materials. This is advantageous when acids and bases are used for regeneration, which mutually form a valuable salt. A second advantage is the concentration of the salts originally present in the dilute solution. These advantages reduce the desalination costs, and make economic recovery of water from such solution possible. Desalination of natural waters with a salt content exceeding 20 gm-equiv./m3 and effluents, particularly from industrial operations.
Patent DE-2305660-A1 (DE)
Title: Insulated support material lined with resistance film - prepd by coating roughened film side with thermosetting glue, heat treating, and pressing film against support material
Inventor: JAECKEL KARL HORST
IPC: H05K1/09
Filed: 1973-02-06
Abstract: Insulated support material which is lined with a resistance film, esp. for prodn of printed circuits, is produced by (a) roughening >=1 side of the resistance film by sandblasting (b) coating the roughened film side with a thermosetting glue, (c) curing the glue by heat treatment, so that the electrical props of the resistance film are stabilised, and (d) pressing the pretreated film against a support material under the action of heat. The material has high adhesive strength, and high resistance to solder baths and alkali, esp. Cu baths at pH 12.
Patent DE-2337091-A1 (DE)
Title: Continuous heat treatment of steel wire - including successive austenitisation-, quenching and tempering
Inventor: FILATOW NIKOLAJ G
IPC: C21D9/52
Filed: 1973-07-20
Abstract: Process comprises reheating to the austinitising temp., quenching to obtain martensite then tempering to produce a fine lamellar sorbitic structure, in succession where the wire is travelling at 10-300 m/min. and the tempering is effected at 300-700 degrees C at a speed of 50-3000 degrees C/sec., and the initial reheating is effected by electric current.
Patent DE-2343612-A1 (DE)
Title: Speed regulator for linear and rotary async. machines - has static converters and keeps main flux constant independently of load variations
Inventor: GRUMBRECHT PETER DIPL-ING
IPC: H02P23/08
Filed: 1973-08-25
Abstract: The speed regulator for linear and rotary async. machines with static converters uses the stator current and slip frequency to maintain the main flux constant independently of load fluctuations. The actual speed is compared with a reference speed to obtain a difference signal which is amplified and passed to two function generators. The first generator produces a signal representing the machine required current and is compared with the actual current, to produce another difference signal which is applied to the static converter control circuit. The second generator produces a signal representing the rotor required speed and is switched by a signal representing the slip frequency to a comparator input, where it is compared with the actual speed obtained from a tachogenerator.
Patent DE-2347022-A1 (DE)
Title: Copying mechanism for gear tooth hobbing machines - has a controlling cam for the infeed of the radial slide during the axial feed
Inventor: TULLNER KARL-HEINZ
IPC: B23F3/00
Filed: 1973-09-19
Abstract: Gear tooth hobbing machine copying mechanism has a cam which controls the infeed of the radial slide during the axial feed by means of a sensor. The purpose of this mechanism is to produce curved flank profiles. Hence it produces curved gear teeth or slightly bevelled gear teeth or gear teeth whose edges are lightly chamfered. These gears are used to compensate unavoidable axial direction orientation deviations and ensure that no gear transmits loads by its tooth edges only. Lightly bevelled gears are used to adjust the flank plays by relatively axial displacement. Only one basic standard pattern cam is used for any given profile independent of the gear size. The cam is scanned by the sensor which is moved along by a leadscrew. The information is transmitted to the gear cutting head with the gear hobbing cutter. The guiding cam has a curved surface and a tapered surface. This cam can be rotated about its axis into the required scanning position. The hobbing cutter is moved by the leadscrew along the workpiece blanks which are held on a mandrel.
Patent DE-2351029-A1 (DE)
Title: Windscreen wiper with constant screen pressure - is shaft driven and executes a swivelling motion from mounting rod
Inventor: KLINGER HELMUT DIPL-ING
IPC: B60S1/38
Filed: 1973-10-11
Abstract: The windscreen wiper blade is mounted directly on a rod which carries out the swivelling motion, the rod being given a forward curvature from which the run of the wiper blade results at all possible positions of the drive shaft by multiplication by an amplification factor. The course of the moment of resistance of the rod, which determines the amount of reduction in forward curvature under the influence of a moment which reduces the forward curvature of the rod, is so chosen that the rod adapts itself to each contact curve prescribed by the screen and the position of the drive shaft whilst exercising over the length of the wiper blade an approximately constant pressure.
Patent DE-2353923-A1 (DE)
Title: Pigment compsn for aq binders - contg finely divided pigment and water-sol polystyrene-sulphonate as dispersing agent
Inventor: BELDE HORST
IPC: C09B67/46
Filed: 1973-10-27
Abstract: Pigment compsn. useful as pigment masterbatches contains (I) 10-90 wt. % finely divided pigment, and (II) 90-10 wt. % water-sol. polystyrene-sulphonate as dispersing agent. Compsn. does not coagulate or sediment in aqs. binders, even in high concns. and remains stable for long periods. The compsn. pref.also contains up to 50 wt. % water (II) is pref. derived from a polystyrene with an average mol. wt. of 300-50,000, contains 0.2-1 sulphonate gp. per styrene monomer unit, and is in the form of a sodium, potassium, ammonium or alkyl-ammonium salt. (I) may be an inorg., quinacridone, quinophthalone, azo, anthraquinone, phthalocyanine, indigo or oxazine pigment, or a pigment derived from perylen-3,4,9,10-tatracarboxylic acid.
Patent DE-2354826-A1 (DE)
Title: Synchronising rings for motorcar gearboxes - which are coated on contact faces with molybdenum and aluminium oxide layer
Inventor: WEYERSBERG ERNST-RUDOLF
IPC: F16D23/02
Filed: 1973-11-02
Abstract: Synchromesh gear box for a motor car is equipped with an axially displaceable gear change sleeve which is in friction contact with a synchronising ring during the synchromesh operation. The external contact surface of the synchronising ring is coated partly with a sliding layer containing oxides to increase the friction effect (75% Mo, 25% Al2O3 or W-Co carbide). The layer combines adequate sliding capacity during the initial phase of the synchromesh operation, with a high friction effect in the later phase. The operation requires therefore a minimum of time and little force.
Patent DE-2356637-A1 (DE)
Title: High early strength binder - contg. cements, gypsum and formaldehyde-amino-1,3,5-triazine condensate contg. sulphonic acid gps.
Inventor: AIGNESBERGER ALOIS DR
IPC: C04B28/14
Filed: 1973-11-13
Abstract: Binder for building matls. having high early strength consists of (a) Portland cement and/or Fe Portland cement and/or blast furnace cement, (b) aluminous cement, (c) gypsum semi-hydrate and/or anhydrite, and (d) a sulphonic acid gp. contg. HCHO-amino-1,3,5-triazine condensate (I). Prod. is used for anchoring beams in building pts. assembling machinery, and sealing against water breaking in. High strength requirements are satisfied after 6 hrs. as well as after 28 days, addn. of (I) improves bending strength and compressive strength.
Patent DE-2358024-A1 (DE)
Title: Watertight base for waste tips - consists of melted plastics waste from rubbish or the plastics industry
Inventor: CARSTENSEN UWE
IPC: E02D31/00
Filed: 1973-11-21
Abstract: A watertight base for waste tips to prevent pollution of the ground water consists of plastic matl. from rubbish, or waste from the plastics industry which is spread and melted to provide a film. The plastics matl. may be spread and then melted by heat supplied from above or may be applied ready melted by means of a vehicle.
Patent DE-2360882-A1 (DE)
Title: Conveyor switching tongue actuator mechanism - has selector discs with recesses supporting pin on tongues and spring-loaded
Inventor: ESSER HARTWIG
IPC: B61L23/00
Filed: 1973-12-06
Abstract: The tongue moves about a vertical bearing, and selector discs with recesses in their peripheries likewise pivot on vertical bearings against spring action. A selector bolt coupled to the tongue is spring-loaded in each tongue position against the disc edges. The discs can be actuated by pull ropes, and the rearwards movement of the tongue can be effected by a pin actuated by the matl. transported. A barrier disc can be provided on the disc bearing, rotatable so that in a partic. position it bridges the recesses in the selector discs.
Patent DE-2402466-A1 (DE)
Title: Switching device of the crossbar distributor type - switches through or blocks A.C. transmission paths
Inventor: BOSHOLD KLAUS
IPC: H04Q3/52
Filed: 1974-01-18
Abstract: The switch has several subunits with a smaller number of inputs and outputs. Each input has an input selector, and each output an output selector. Controlled switches are provided in the selectors and switching panels. Each circuit input can be directly connected through its input selector to an input of one of the several switching subunits, and each circuit output can be similarly connected to a subunit output. When the switch is built as a passive electronic switch, switches in the subunits are in the form of T-sections, and in the selectors of half-sections.
Patent DE-2402497-A1 (DE)
Title: Domestic electric night storage heater - heats oil for heat exchange with central heating cct. over preset period
IPC: F24D11/00
Filed: 1974-01-19
Abstract: Night storage heater for dwellings has a preset amount of heat-carrier oil heated for a preset time by electricity and passed through a heat exchanger into heat exchange with the liquid of the central heating plant. Preferably the oil is heated at 300 deg.C and cooled to max. 130 deg.C during the heat exchange. The appts. has a heat-insulated container for pressure-less receipt of the oil and with two connections to the heat exchanger that has two further connections to the feed and return of the central heating plant. Electrical resistance heaters are fitted in the container. The appts. can be used on existing oil- or coal-fired central heating plants.
Patent DE-2411076-A1 (DE)
Title: Machine tool coolant purification - by heating spent oil before hydrocyclone separation and heat recovery from cooling oil
Inventor: LANGE JOACHIM
IPC: C10M175/04
Filed: 1974-03-08
Abstract: Oil which has been used as a coolant and is heavily contaminated with swarf, grinding dust and grit is first heated to 40-60 degrees C before it is passed through a hydrocyclone for purification. The heat dissipated when the oil is cooled down is utilised to heat the oil prior to purification. Oils with a viscosity =3-4 degrees Engler may be treated without use of dewatering filters. The thermal efficiency is also improved by heat recovery.
Patent DE-2413553-A1 (DE)
Title: Conveyor belt tension measuring system - uses simple components and is unaffected by incorrect belt tracking
Inventor: JUENGEL HEINRICH DIPL ING
IPC: G01L5/10
Filed: 1974-03-21
Abstract: The system is designed especially for fully automatic or computer controlled belt conveyor installations. A deflecting pulley above or below the belt is positioned between two fixed points and is connected to belt tension sensors at each side of the belt. Pref. the tension forces in the direction of belt travel are taken up by two pivoted lever arms, whereby with the deflecting pulley in a given position the line connecting the axes of rotation of this pulley and the lever arms is parallel to the straight line connecting the two fixed points, and the measuring system operates perpendicularly to this direction.
Patent DE-2416547-A1 (DE)
Title: Interlocking concrete lattice chambered turf slab - with cross-stems intersecting planes at angles paired opposite ways
Inventor: DROEGE JOSEF
IPC: E01C9/00
Filed: 1974-04-05
Abstract: The chambered slabs, pref. of concrete, for use on turf, comprise a lattice structure of cross-stems arranged at right angles to each other, bounding the individual turf compartments and cut off at the slab edges at half length vertically to the slab plane. The intersecting surfaces of the cross-stems run at an inclined angle to the direction of extension of the slab edge in question, each edge having two or more intersecting surfaces inclined opposite ways. The cut-off stems on one slab edge may be complemented by those on other edges, to form complete stems, and they may be rounded off at their top and/or bottom edges. Effective all-round interlocking is effected when the slabs are laid, preventing parallel displacement and tilting, while preserving an an even pattern.
Patent DE-2417745-A1 (DE)
Title: Conduit fluid current control - uses slide valve position controlled by operating organ with extendable chamber
Inventor: DEAN JUN FRANK JAMES
IPC: F24F11/00
Filed: 1974-04-11
Abstract: Device for the control of a fluid current flowing through a channel, which has a slide valve whose movement is activated by means of a operating organ with an extendable chamber. Thus, the through flow quantity flowing through the channel is varied. The slide valve is adjustable in a position which allows free passage, and is so connected to the operating organ that through the extension of the chamber it can interrupt passage through the channel. Means are provided for introduction of the fluid pressure to extend the chamber of the operating organ, and a control is also available which releases this fluid pressure so that the degree of extension can be regulated.
Patent DE-2418742-A1 (DE)
Title: Electrode support prodn by plating porous fabric with metal - using external current source, for economy
Inventor: BENCZUR-UERMOESSY GABOR DR
IPC: H01M4/88
Filed: 1974-04-18
Abstract: In the prodn. of a supporting framework for the active material of electrodes for galvanic elements or fuel cells, in which a porous fibrous fabric is provided with an electrically conducting metal coating over the inner and outer surfaces in an aq. soln. and, before or during application of the metal coating, the fabric is contacted with a solvent with a lower surface tension then the liquid, which wets the surface of the fibres of the fabric, as in parent patent, the metal ions of the bath are reduced by a cathodic current from an external DC source. The fabric pref. consists of carbon or graphite fibres or synthetic fibres with a conductive surface. A cathodic current density of 0.5-6, pref. 1.5-4 A/dm2 can be used. The soln. pref. contains Ni2+ and/or Co2+ ions, which can be added partly as chloride (which favours dissoln. of the counter-electrode). The use of an external DC source is more economical than electroless metallisation.