baber/WOPTO huggingface dataset:
Patent DE-2963643-D1 (DE)
Title: Improvement in the chromising of steel in the gaseous phase
Inventor: LEVEQUE ROBERT
IPC: C23F17/00
Filed: 1979-10-08
Granted: 1982-10-28
Abstract: The object of the present invention is an improvement in chromizing methods, constituted by a method of chromizing steels to a depth e greater than 30 microns, usable for steels with a carbon content of at least 0.2%, especially for steels for construction work and steels for tools, characterized by the combination of three successive treatments, the first of these three treatments consisting of an ionic nitriding of a surface layer between 100 and 350 microns thick, this ionic nitriding being realized in an atmosphere constituted by a mixture of nitrogen and hydrogen, at a temperature of between 450 DEG C. and 650 DEG  C., for between 5 and 40 hours, so as to obtain between 1.5% and 2.5% nitrogen in the nitrided layer, the second of these treatments consisting of a chromizing by gaseous method forming chromium carbides, lasting between 5 and 30 hours, and realized at temperatures of between 850 DEG  C. and 1,100 DEG  C., the third of these three treatments being a thermal treatment comprising a quenching in oil of the chromized piece followed by a tempering at a temperature of between 600 DEG  C. and 650 DEG  C., lasting between 30 minutes and 10 hours, depending on the size of the piece treated.
Patent DE-2964835-D1 (DE)
Title: A method of safely controlling, storing and transporting banknotes, and a safety cassette and banknote-infeed unit for carrying out the method
Inventor: JOHANSSON SVEN LISSOL
IPC: E05G1/14
Filed: 1979-10-19
Granted: 1983-03-24
Abstract: PCT No. PCT/SE79/00211 Sec. 371 Date Jun. 20, 1980 Sec. 102(e) Date Jun. 20, 1980 PCT Filed Oct. 19, 1979 PCT Pub. No. WO80/00887 PCT Pub. Date May 1, 1980.In a method of providing safe control, storage and transportation of banknotes there is used a closeable cassette (1) provided with locking means, said cassette containing a liquid-dye container (9) which is activated when an attempt is made to force the cassette, thereby to render the banknotes unusable. To prevent a successful robbery against, for example, a store or like place in which banknotes are introduced into the cassette with the aid of a special infeed unit (19, 20), the cassette is constructed so that it can be removably connected to said infeed unit while exposing an infeed opening (16), said infeed unit suitably being provided with a counter means. In conjunction therewith, the associated infeed and packing means of the cassette are inserted into the unit, whereupon banknotes can be fed into the cassette. The cassette, with the banknotes therein, is then released from the infeed unit while closing the infeed opening, whereafter the cassette is transported to a collecting location, e.g. a bank, where an authorized person equipped with a key or a code for the cassette lock (1c) empties the cassette of its contents. The safety function of the cassette includes an electric circuit arranged, when an attempt is made to force the cassette, to ignite a detonator (8) which ruptures the liquid-dye container. The electric safety function is primed automatically when the cassette is closed as it is removed from the infeed unit. The invention also relates to a safety cassette (1) and an infeed unit (19, 20) for carrying out the method.
Patent DE-3063671-D1 (DE)
Title: Preparation machine for spinning
Inventor: DEMUTH ROBERT
IPC: D01G15/80
Filed: 1980-06-07
Granted: 1983-07-14
Abstract: The converging space between the moving-in or inbound surface of a loosening roll and the surface of a feed roll contains a suction duct, which is brought into close vicinity of the fibre loosening zone located between the two rolls, and which is used for sucking off of dust released in this zone. The suction duct is supported by the body forming the fibre feeder trough. Detrimental deposits of impurities in the subsequent processes, e.g. in the open-end spinning rotors, thus are greatly reduced.
Patent DE-3066281-D1 (DE)
Title: Comminuted crystalline material, aqueous suspensions thereof and methods for the preparation of said comminuted material and said suspensions
Inventor: ENEVER JAMES ALEXANDER
IPC: C06B47/14
Filed: 1980-08-08
Granted: 1984-03-01
Abstract: Water-soluble crystalline material which has been comminuted in a saturated aqueous solution of the material in the presence of a water-soluble crystal-growth inhibitor having a hydrophobic portion and a hydrophilic portion in its molecular structure is mixed with a deflocculant which inhibits the interaction of the hydrophobic molecular portions whenever the comminuted solid is suspended in water. The viscosity of aqueous suspensions of comminuted solid is thereby stabilised.The invention is especially beneficial in the preparation of aqueous suspensions of finely comminuted ammonium nitrate for use in slurry blasting explosives.With crystal-growth inhibitors such as water-soluble polysaccharide derivatives, long chain aliphatic amines, polyacrylic acids, sulphonated nuclear aromatic compounds, sulphonated dyes or sulphonated polymers the preferred deflocculant, which should be different from the crystalgrowth inhibitor, may include water-soluble polysaccharide derivatives, polyacrylic acid, polyvinyl pyrrolidone, sodium lignosulphonate and/or a salt of a condensate of naphthalene sulphonic acid with formaldehyde.
Patent DE-3067538-D1 (DE)
Title: Screen assembly
Inventor: MARTIN ANDREW C
IPC: D21D5/02
Filed: 1980-08-05
Granted: 1984-05-24
Abstract: A pressurized screen particularly adapted for screening paper making pulp includes a cylindrical screen plate mounted in a cylindrical casing and defining with it an annular chamber which receives unscreened pulp from which rejects are removed as the good pulp passes from the annular chamber through the screen plate. The axes of the screen plate and the casing are offset with respect to each other, forming an enlargement of the chamber which extends approximately from an inlet into the annular chamber to a rejects outlet which is diametrically opposite the inlet. A partition in the chamber extends parallel to the axes of the casing and screen plate from a position opposite the inlet to a position above the rejects outlet. The partition is spaced from the opposing inner and outer surfaces of the screen and casing, respectively, and a baffle is provided which extends co-extensively with the partition and slopes helically downwardly about the screen plate from the inlet to the rejects outlet and defines with the partition, the screen plate and a floor of the chamber, a passage of decreasing cross-sectional area. Inlets are also provided for adding dilution liquid to the passage upstream of the rejects outlet and a purging liquid just upstream of the rejects outlet.
Patent DE-3170505-D1 (DE)
Title: Process for preparing a detergent composition having improved chlorine retention characteristics
Inventor: ROMEO JOSEPH
IPC: C11D17/00
Filed: 1981-08-24
Granted: 1985-06-20
Abstract: The premature release of chlorine from chlorine-releasing bleaching agents in a particulate detergent, caused by the action on such a bleaching agent by some other component in the detergent, is prevented by compacting and granulating a mixture of said other component, preferably with additional constituents which do not have the chlorine-releasing effect, and then mixing those granules with the chlorine-releasing bleaching agent and other appropriate detergent constituents. The resulting novel detergent is a mixture of the thus-produced granules with particles of the said other appropriate detergent constituents.
Patent DE-3173432-D1 (DE)
Title: Process for binding aggregates using a polymerizable binder
Inventor: IGLESIAS HERNANDEZ EDUARDO
IPC: B22C1/22
Filed: 1981-07-21
Granted: 1986-02-20
Abstract: In the manufacture of cores and molds, an aggregate such as silica is mixed with a polymerizable binder such as a phenolic resin and with an organic or inorganic acid catalyst which has been blocked by reversible reaction with a volatile base e.g. an amine. The resultant mixture is heated under a reduced pressure of 10 to 70 mm Hg to unblock the catralyst and thereby effect polymerization of the binder. The use of high temperatures and unpleasent gaseous catalysts is avoided.
Patent DE-3173812-D1 (DE)
Title: An anti-skid device for vehicle wheels
Inventor: SEGGIO GIANFRANCO
IPC: B60C/
Filed: 1981-09-05
Granted: 1986-03-27
Abstract: The invention relates to an anti-skid device for vehicle wheels, comprising a plurality of U-shaped elements radially mounted on the wheel tire, and two series of connecting levers pivoted on each arm of said U-elements. In order to warrant an automatical mounting operation of the device on a vehicle wheel by simply advancing the wheel on the device, each arm of each U-element carries retaining means for said levers, which removably retain the U-element and levers in a relative position wherein said U-element forms a preset angle with the levers upstream the same, said angle corresponding to that formed when the device is mounted on the tire.
Patent DE-3262503-D1 (DE)
Title: Pipe manifold with distributor and accumulator compartment
Inventor: GRAMMER MEINRAD
IPC: F24D3/10
Filed: 1982-11-16
Granted: 1985-04-11
Abstract: 1. Pipe manifold for heating systems whose interior is preferably divided into a distributor compartment and an accumulator compartment by a partition, and which has unions for connecting supply and return pipes, characterized in that every two unions (6, 8) leading to the distributor compartment (3) and the accumulator compartment (4), respectively, form a double union comprising an inner union (6) and an outer union (8).
Patent DE-3263282-D1 (DE)
Title: Improvements in or relating to telephone transducers
Inventor: CHARLESWORTH DAVID VALENTINE
IPC: H04R11/00
Filed: 1982-09-10
Granted: 1985-05-30
Abstract: An electro-acoustic transducer of novel structure suitable for automatic assembly is made by arranging with its wall upwards a generally cup-shaped rear cover 20 having a cylindrical wall out-turned at its upper end and extending from the rim of a base divided along a chord 60 into a major segment 61 for receiving an electromagnetic driving unit 30, 34 and a terminal receiving minor segment 62 at a higher vertical level than the major segment 61. The major segment 61 has on its inner face fixing lands 40, 41 disposed symmetrically with respect to a diameter normal to said chord 60 offset away from the minor segment 62 and extending inwards from the side wall. Each fixing land 40, 41 is formed to define a fixing location 64 and having on its face presented to the minor segment an upstanding locator wall 66; 
<??>A yoke and coil sub-assembly lowered into the rear cover is defined by a cruciform yoke plate of magnetisable material having a magnet 50 at its centre with one pair of upturned opposite arms directed along the diameter normal to said chord 60 to said pair of arms defining pole pieces and carrying coils 30, 31 and with the other pair of upturned opposite arms 32, 33 parallel to the said chord 60 and formed with outturned fixing ears 52 that settle directly on said lands 40, 41 behind said locator walls 66 with through-holes 52 therein aligning with said fixing locations 64 of said lands; 
<??>Onto the yoke and coil sub-assembly is placed downwardly an armature 34 formed with depending bearing means that settle on the magnet 50 and permit the armature 34 to rock thereon and a pair of torsion arms extending towards the lands 40, 41 and terminating in fixing ears 35, 36 that settle behind the locator wall 66 on the fixing ears 51 of the coil sub-assembly with through-holes 52 aligning with said fixing locations 64 of said lands. The armature has secured thereto an upstanding connecting rod 34a; 
<??>The armature 34 is mechanically fixed from above the rear cover in tight contact with the yoke plate and the yoke plate is fixed in tight contact with the lands 40, 41 so that the armature is supported for vibration in said rear cover 20. Connector terminals 45 are introduced through said minor segment 62 and electrically connected to the coils. A dished diaphragm 23 is placed downwards onto the rear cover so that its rim 25 settles on the outturned end of the cylindrical wall and the connecting rod 34a projects through a throughhole in said diaphragm. Then the connecting rod 34a is adhered to the diaphragm 23; and a front cover 10 is assembled to the rear cover 20.
Patent DE-3264909-D1 (DE)
Title: Dental aspirator
Inventor: KRATOCHWILLA HANS MICHAEL
IPC: A61C17/00
Filed: 1982-08-10
Granted: 1985-08-29
Abstract: 1. A dental aspirator for sucking off liquid and solid particles, comprising a separating container (4) which is inserted into the suction line and into which the sucked off material flows in the manner of a cyclone and in which the sucked off particles are separated from the suction air, collected and discharged by way of a discharge channel (19) when a predetermined filling level has been reached in the container, characterised in that at least one floating and suspended body (26) is arranged in the container (4) so as to be freely movable, the shape, volume and weight of which body (26) are such that, when the container is empty, it is carried forward by the air current, and when liquid is present in the container, it floats thereon with intrinsic rotation.
Patent DE-3363058-D1 (DE)
Title: Vehicle wheel
Inventor: SEITZ HANS DR DIPL ING
IPC: B60C17/00
Filed: 1983-07-12
Granted: 1986-05-22
Abstract: A vehicle wheel having a one-piece rim and being provided for a pneumatic belted tire. The seats for the tire beads are located on the radially inner surface of the rim. In order to assure trouble-free emergency operation of the tire in the event of damage or a defect, on the rim and/or on the tire, structures are provided which, at least in the region of the support surface of the tire, effect a disengagement of the tire beads from the rim seats during a loss of air pressure, and which prevent an only periodic return of the tire beads to the seats while driving.
Patent DE-3368497-D1 (DE)
Title: Running shoe, especially for longer distances
Inventor: CAVANAGH PETER R PROF DR
IPC: A43B5/06
Filed: 1983-10-12
Granted: 1987-02-05
Abstract: An otherwise conventionally constructed running shoe sole is provided with a rounded border having a radius of curvature of about 20 mm only along approximately the rear 50% of the length of the outer side of the midsole and heel edge layers, the remaining border area being provided with a conventional flaring or the like with the exception of a transition zone. In accordance with a modified embodiment, a convexly curved shock-absorber bar is incorporated into the sole and is outwardly covered by a layer of softer material which is provided with the outer curvature, and which increases the cushioning capacity of the sole during initial heel strike.
Patent DE-3369795-D1 (DE)
Title: Process for removing iron from leaching solutions
Inventor: DUMAS JEAN LOUIS
IPC: C01G49/06
Filed: 1983-12-14
Granted: 1987-03-19
Abstract: 1. Process for removing selectively iron from acidic chlorous solutions originating in leaching complex sulfide ores to produce non-iron metals comprising oxidizing the ferrous iron present in said solution to ferric iron by introduction of an oxidizing gas into said solution and subsequent filtering and washing the so formed precipitate of ferric iron, characterized in that the starting solution has a concentration of copper [Cu**++ ] =< 1,5 M and a concentration of ferrous iron [Fe**++ ] =< 2 M and that one introduces said oxidizing gas into said solution with a constant throughput during at least the first half of the duration of the reaction and one increases continuously the partial pressure of the oxygen in said gas in function of the time to maintain the velocity of the oxidation reaction constant during at least the first half of the duration of said reaction.
Patent DE-3372751-D1 (DE)
Title: Stabilized 1,1,1-trichlorethane
Inventor: GREGOR REINHARD
IPC: C07C17/42
Filed: 1983-03-31
Granted: 1987-09-03
Abstract: Stabilized 1,1,1-trichloroethane characterized in that it comprises a combination of:  3 - 5 % wt tert-butanol,  1.5 - 2.5 % wt. 1,4-dioxane,  0.3 - 0.8 % wt. nitroalkane with 1 to 3 carbon atoms,  0.3 - 0.8 % wt. butylene oxide and/or cyclohexene oxide and 0.01 - 0.05 % wt. aliphatic and/or heterocyclic amine as stabilizers.
Patent DE-3473559-D1 (DE)
Title: Chair
Inventor: RIZZOLI ENNIO
IPC: A47C31/12
Filed: 1984-07-04
Granted: 1988-09-29
Abstract: The chair has a seat (7) provided with a vertically movable part which is returned to its raised position by a resilient leaf spring (10). The spring also senses the weight of a seated person. A backrest support structure (4) is movable relative to a fixed base structure (3) of the chair. The support structure is biased towards a first operative position by a resilient cartridge (23). The load of the cartridge is adjusted automatically in dependence on the user's weight sensed by the spring, this weight acting to aid in moving the support structure to a second operative position.
Patent DE-3473932-D1 (DE)
Title: Stripline doppler radar
Inventor: MULLER JORG DR ING
IPC: G01S13/50
Filed: 1984-06-19
Granted: 1988-10-13
Abstract: A stripline Doppler Radar includes at least one high-frequency oscillator, a first stripline conductor connected to the oscillator, a second stripline conductor spaced from the first stripline conductor, at least one receiving diode connected to the second stripline conductor, an antenna connected to the second stripline conductor, low frequency external electrical terminals, filters connected between the stripline conductors and the external electrical terminals for inhibiting leakage of high-frequency power through the external electrical terminals, and a dielectric resonator adjustable in position from a location between the stripline conductors to a location partially covering one of the stripline conductors for conducting power delivered by the oscillator through the stripline conductors and the dielectric resonator to the receiving diode and the antenna, and for adjusting power radiated through the antenna, power received through the antenna and power transmitted from the oscillator through the resonator directly to the receiving diode.
Patent DE-3474161-D1 (DE)
Title: Process for producing steels from scrap contaminated by at least one of the elements chronium, copper, molybdenum and nickel
Inventor: WELFLE KURZ DIPL ING
IPC: C21C5/00
Filed: 1984-01-28
Granted: 1988-10-27
Abstract: The accidentally and unavoidable trace- and alloying elements Cr, Cu, Mo and Ni, arriving in the liq. melt from or with the steel scrap or other starting materials, are made use of, in a controlled manner, in accordance with their alloying effectiveness of strength properties, esp. yield strength and weldability, to reduce the standard, technologically provided for alloying addn.of Si and/or other elements. This is effected to such a degree that only the difference between the content of Cr, Cu, Mo or Ni, determined in the analysis of the charge, and the statistical average value of the element in the analysis of the charge or the limiting values for Cr up to 0.15 %, Cu up to 0.15%, Mo up to 0.01% and Ni up to 0.07% is used. The redn. of Si and Mn in the steel is effected only down to the bottom contents, which, empirically ensure the required degree of killing and faultless casting. In the case of any excess of resiudal contents of Cr, Cu, Mo or Ni, the average aimed-at C content of the steel brand is reduced by an amt. corresp. to the C equiv.
Patent DE-3475593-D1 (DE)
Title: Skin treatment composition
Inventor: RAAF HELMUT DR
IPC: A61K8/19
Filed: 1984-07-27
Granted: 1989-01-19
Abstract: Skin care composition containing mineral salts releasing sodium, potassium, megnesium, calcium and zinc salts in defined concentration, and, optionally, compounds releasing copper, manganese, vanadium, aluminum, cobalt and/or iron ions.
Patent DE-3485381-D1 (DE)
Inventor: JOUWSMA WIJBREN
IPC: G01F1/692
Filed: 1984-05-17
Granted: 1992-02-06
Abstract: Fluid flow measuring device comprising sensor elements positioned onto the outer wall of the thermically conducting measuring channel and thermically insulated from the environment by an insulating body. The sensor elements can be heated for creating a temperature gradient as a function ofthe fluid flow rate, which temperature gradient can be converted into an electrical measuring signal using a bridge circuit. The bridge circuit comprises four sensor elements which two by two are connected in series and are positioned onto the fluid measuring channel such that of each series circuit one element is positioned onto a fluid measuring channel such that of each series circuit one element is positioned onto a first section of the fluid measuring channel upstream in relation to a second section of the fluid measuring channel onto which the other element of the respective series circuit is positioned, whereby the downstream end of each series circuit is connected to the upstream end of the respective other series circuit, and the electrical measuring signal is available at the junctions within said series circuits. The sensor elements are formed by thin or thick film resistors or integrated semiconductors onto the electrically insulating fluid measuring channel respectively onto a thin insulating layer onto the electrically conducting fluid measuring channel.
Patent DE-3560708-D1 (DE)
Title: Wastewater treatment method
Inventor: ANDERSSON PER-ERIK
IPC: C02F3/28
Filed: 1985-03-08
Granted: 1987-11-05
Abstract: At anaerobic treatment of wastewater it was found that resin and fatty acids in the wastewater have a toxic effect on the bacteria culture. According to the invention, this is solved by additions of iron or aluminium and calcium or magnesium.
Patent DE-3562627-D1 (DE)
Title: Method for the beneficiation of low rank coal and products obtained thereby
Inventor: MCGARRY PHILLIP E
IPC: C10L1/32
Filed: 1985-10-23
Granted: 1988-06-16
Abstract: Low rank coal (I) is beneficiated by (a) mixing with a surface treating mixt. (II) comprising water, a polymerisable monomer (M), a polymerisation catalyst (C) and a coal-derived oil (L); and (b) recovering beneficiated coal. Pref. (I) is bituminous, sub-bituminous coal, lignite or peat and it is pulverised in water to form a slurry of coal:water wt. ratio e.g. 1:3. (M) is an unsatd. acid, e.g. oleic acid, or ester thereof in an amt. 0.02-0.1 wt.% based on I; esp. corn oil; (C) is a peroxide or azo cpd., 10-200 ppm based on (I); it may be employed with an initiator, e.g. a copper salt; hydrogen peroxide+copper nitrate is esp. suitable. (L) is crude coal tar, tar acids, tar bases, naphtha, creosote and/or pitch, 2-3 wt.% based on (I). A further liq. carrier, e.g. a fuel oil, may be present in (II) at 0.5-5 wt.% based on (I).  Conditioning agent (dispersants, surfactants or wetting agents) may also be present, e.g. sodium carbonate and/or sodium pyrophosphate.
Patent DE-3565623-D1 (DE)
Title: A device for the conservation and the time-distribution of food for animals
Inventor: ZAMMARANO ALESSANDRO
IPC: A01K5/02
Filed: 1985-08-13
Granted: 1988-11-24
Abstract: The device includes a gas compressor, a cooling coil for the gases, and acooling and/or freezing plate. A thermostat is provided for continuous temperature regulation. The upper cover of a container is provided with a circular sector opening corresponding to an opening of a shape similar to the one of the bottom. A structure, inside the container, is provided with bins carrying a number of cups and supported on wheels so as to be put into rotation by an electric motor.