baber/WOPTO huggingface dataset:
Patent DE-3434126-A1 (DE)
Title: D.C. converter circuit for vehicle drives with a rheostat-controlled brake powered by the electrical system
Inventor: STILL LUDWIG DIPL ING
IPC: H02P3/18
Filed: 1984-09-18
Abstract: This DC converter circuit is preferably suitable for vehicles with a rheostat-controlled brake powered by the electrical system, said vehicles being fed from a DC voltage system (DC voltage source G), and having a DC drive (A) or a rotary current drive with inverter connected upstream. The DC converter circuit has two parallel branches: one brake branch with brake resistor (RB) and brake thyristor (TB) located in series and a main branch with the actual DC converter. When the DC converter is designed as turn-on and turn-off electronic switches (gate-turn-off thyristor GTO) without their own turn-off device, the conductive brake thyristor (TB) is no longer also turned off when the electronic switch (GTO) is disabled. Therefore, in order to turn off the brake thyristor (TB) an auxiliary turn-off branch, consisting of the series connection of an auxiliary reactor (LH) and an auxiliary capacitor (CH) is provided parallel to the brake resistor (RB). When the electronic switch (GTO) if fired, the brake thyristor (TB) is turned off by the flow of current produced in the auxiliary turn-off branch. <IMAGE>
Patent DE-3440066-A1 (DE)
Title: Gear-shift device for multi-speed gear hub for cycles or the like
Inventor: BERGLES EDUARD ING
IPC: B62M25/04
Filed: 1984-11-02
Abstract: The invention relates to a gear-shift device for multi-speed gear hubs for cycles or the like, having a housing which holds the gear-shift elements and is attached to one end of the hub axis. By means of a control cable which can be influenced by a manual switch, a lever system is switched which, in cooperation with or optionally counter to spring tensioning, selects the speeds of the gear hub by displacing axial elements. The lever system here comprises a lever for actuating a central gear-shift pin in the hub axle and a lever which is designed to actuate a shift sleeve which is coaxial with the shift pin, these two levers in the housing of the gear-shift device being arranged on a common bearing bolt and being capable of being influenced by a separately mounted actuation lever in a sequential connection. <IMAGE>
Patent DE-3440202-A1 (DE)
Title: Process for preparing the fuel for a combustion engine, utilising its waste heat
Inventor: ANDERSEN KJELD
IPC: F02B3/06
Filed: 1984-11-03
Abstract: A fuel/water mixture is evaporated in a heat exchanger and subjected to a catalytic steam reformation. As a result, a combustible gas is produced which is admixed to the fuel entering the combustion engine. The steam reformation is carried out using a sulphur-insensitive catalyst which is composed of a support substrate containing 5 to 25 % by weight of zirconium oxychloride (ZrOCl2). Because of the sulphur-insensitivity of the catalyst, the process can be used for petrol and diesel engines driven by commercial fuel. Gas turbines are a further area of application.
Patent DE-3443664-A1 (DE)
Inventor: KUGELER KURT PROF DR ING
IPC: B30B15/34
Filed: 1984-11-30
Abstract: 1. Process for the rapid cooling of the contents of an installation for hot isostatic pressing (HIP installation), in which in the container a gas stream is established from the heated HIP material towards the inner wall of the container, for the purpose of cooling, wherein one or more heat regenerators (21, 34) are arranged inside the container (11) in a substantially cooler zone (19), the stream of cooling gas coming from the HIP material (16) being passed through said heat regenerators.
Patent DE-3500143-A1 (DE)
Title: Appliance for utilising the air resistance in motor vehicles
Inventor: WAGNER PETER
IPC: F03D9/32
Filed: 1985-01-04
Abstract: One or more propellers are fitted in the grille on the front of the motor vehicle. The rotation of these is transmitted by means of V-belt pulleys and V-belts to a dynamo, which is connected to one or more batteries. An electric motor is connected in a switching-compatible manner to the battery/batteries, which enable(s) the motor vehicle to be driven separately from the petrol engine at intervals. The rotary transmission from the propeller to the dynamo is selected so that the necessary rotational speed of the dynamo is attained at a motor vehicle speed of approximately 60 kph. The propeller drive is initiated by a shutter in the grille of the motor vehicle, which opens at the appropriate speed.
Patent DE-3501871-A1 (DE)
Title: Leveller
Inventor: BENZ WILLI
IPC: B21D1/02
Filed: 1985-01-22
Abstract: In a leveller, a plurality of upper and lower levelling rolls are supported by back-up rolls and each driven individually by a respective motor via a respective gear mechanism. To improve the drive unit for the levelling rolls or back-up rolls to give a higher power density and greater ease of maintenance, the levelling rolls (10, 13) or back-up rolls (11, 14) are connected via articulated shafts (21, 22) to a respective gear mechanism (24a-d, 25a-c), the latter being laterally offset and intercalated and driven alternately on opposite sides by a respective fixed electric motor (26, 27 and 28, 29 respectively). <IMAGE>
Patent DE-3503735-A1 (DE)
Title: Fuel deflector device
Inventor: SIMONDS EDWARD L
IPC: F02M69/06
Filed: 1985-02-04
Abstract: The invention relates to a fuel deflector device, comprising an air inlet chamber, which is connected to an air-fuel mixing chamber, a fuel accelerating wheel, which is arranged between the air inlet chamber and the mixing chamber, a fuel feed from the fuel tank to the centre of the fuel accelerating wheel, in order there to direct the fuel into the inside of the wheel, the fuel accelerating wheel being provided on the circumference with outlet apertures, through which the fuel is expelled and flung against a deflector ring, in order to make the fuel disintegrate into small particles, so that the air flow flowing past the circumference of the fuel accelerating wheel takes up the particles at a point of the air flow at which a vacuum prevails, so that an internal combustion engine or the like is supplied with a very finely dispersed air-fuel mixture, in order to achieve improved utilisation of the fuel and a reduction of the pollutants in the exhaust gases of the internal combustion engine.
Patent DE-3504780-A1 (DE)
Title: Appliance for aerating dispersions
Inventor: BARNSCHEIDT WOLFGANG DIPL ING
IPC: B03D1/14
Filed: 1985-02-13
Abstract: In an appliance for aerating dispersions for the purpose of de-inking suspensions of fibrous materials, a ring injector 2 is used whose central part 7 is tapered in the direction of the nozzle outlet. Within the range of the mixing section 4, the walls of the cone and the hollow cone are parallel. <IMAGE>
Patent DE-3508421-A1 (DE)
Inventor: BAAS DIETER
IPC: G11B7/095
Filed: 1985-03-09
Abstract: PCT No. PCT/EP86/00076 Sec. 371 Date Nov. 4, 1986 Sec. 102(e) Date Nov. 4, 1986 PCT Filed Feb. 15, 1986 PCT Pub. No. WO86/05307 PCT Pub. Date Sep. 12, 1986.In order to obtain perfect scanning of audio and/or video disks through application of contactless scanning with a coarse and fine drive system for radial servo readjustment, the fine drive optimum working point is reached through a correct interaction of coarse and fine drive, even in the case of different large radial eccentricity amplitudes. This is achieved through adjustment of the coarse drive, using a comparator, as a threshold value detector, and through an evaluation of the pulse sequences occurring at the comparator output. A radial-error signal for the coarse drive is obtained from a control parameter for the fine drive. The coarse drive is started by pulses when the pulses obtained from a radial-error signal exceed a predetermined pulse-to-interval ratio.
Patent DE-3514284-A1 (DE)
Inventor: HUNOLD KLAUS
IPC: C04B35/58
Filed: 1985-04-19
Abstract: The invention is a process for the manufacture of shaped articles of reaction-bonded silicon nitride in which pre-shaped articles of silicon powder are heated in a first stage under a nitrogen gas pressure of at least 6 MPa at a heating rate of not more than 50 DEG C. per hour to a reaction temperature below the melting point of silicon, the article is maintained at the reaction temperature for at least 0.5 hours and subsequently, in a second stage, heating the article at a heating rate of at least 500 DEG  C. per hour to a temperature above the melting point of silicon and maintaining the article at that temperature for from 1 to 7 hours. The process can nitridate both pre-shaped articles consisting of silicon powder and, optionally, up to 15% by weight Si3N4 powder and those containing up to 10% by weight of a sintering aid such as Y2O3. In the former case, porous shaped articles having a density of from 87 to 91% TD and, in the latter case, dense shaped articles having a density of more than 98% TD, are obtained. In all cases, in a total nitridation time of less than 15 hours, a conversion of at least 95% of the silicon originally present into silicon nitride is achieved, which, in the finished shaped article, is substantially in the  beta -modification.
Patent DE-3515326-A1 (DE)
Inventor: SCHEPP HANS-EGON DIPL PHYS DR
IPC: F42B10/14
Filed: 1985-04-27
Abstract: A payload missile for transporting in particular sensors over a target area. To reduce the speed in the end phase of the flight path, fins (12) are installed in the spin-stabilized missile, which are able to rotate around axes (12a) and can be hinged to open out. To ensure that the opening of the fins (12) does not detract from the spin which is necessary for the flight of the spin-stabilized missile, the fins (12) are linked to a hub (31) which is rotatably installed on the base of the missile (11b).
Patent DE-3525826-A1 (DE)
Title: Rapid determination of the equilibrium proportion of fine granular components in sands and gravels, and optional use of the result of the determination for optimising a defined quality of the material
Inventor: GRIESHABER WILHELM
IPC: G01N5/00
Filed: 1985-07-19
Abstract: Method for the rapid determination of the equilibrium proportion of fine granular components in sands and gravels, and optional use of the result of the determination for optimising the preferably continuous production of a defined quality of the material, in which a weighing vessel provided with an overflow and linked to a balance   (1) is completely filled with a liquid and is then weighed (weight determination G 1) (2) a sample of the material is placed in the liquid-filled weighing vessel and the latter, after the level has reached an equilibrium, is weighed again (weight determination G 2) (3) the material in the weighing vessel, while further liquid is allowed to run in directly and/or through an agitator, is swirled up using said agitator in such a way that the fine granular components of the material, up to a grain size defined by the stirring speed chosen in conjunction with the liquid flow achieved, are flushed out over the overflow, followed by weighing once more (weight determination G 3) (4) the proportion of the sample of fine granular components in per cent by weight is calculated according to the formula  F[% by weight] = ((G 2-G 3).100)/G 2-G 1 and, if required, the measurement result is used as a manipulated variable for optimising the production, and an arrangement for implementing the method.
Patent DE-3526948-A1 (DE)
Title: Housing bell for a small electric motor
IPC: H02K1/27
Filed: 1985-07-27
Abstract: Published without abstract.
Patent DE-3534483-A1 (DE)
Title: Semiconductor photoconduction detector
Inventor: FRENZL OTTO DIPL ING
IPC: G01J5/08
Filed: 1985-09-27
Abstract: In a semiconductor photoconduction detector, in particular a FIR detector, the absorption path of the incident radiation is lengthened by reflection. For this purpose, the surface of the detector opposite the entrance surface of the radiation is bevelled in such a way that the angle of incidence of the radiation impinging thereupon is greater than the angle of total reflection of the detector material. The bevel preferably amounts to 30 DEG .
Patent DE-3534627-A1 (DE)
Title: Knife sheath
Inventor: PFLAUMER WULF-HEINZ
IPC: B26B29/02
Filed: 1985-09-28
Abstract: The invention relates to a knife sheath (1) for knives used for survival purposes and is equipped with a device (2) for firing cartridges (3) of signalling ammunition and with a device (4) for carrying such cartridges (3). <IMAGE>
Patent DE-3538554-A1 (DE)
Title: Field chopper
Inventor: WICKER ANTON
IPC: A01D43/08
Filed: 1985-10-30
Abstract: In a field chopper with a chopping drum (1) or chopping disk and with a discharge shaft (4) which can contain further means (5, 6) for comminuting or accelerating the stream of material, deflection bodies (8) are built into the discharge shaft (4) and deflect one or more part streams of the stream of material to mutually opposite walls (10, 7). These part streams serve for keeping the walls (10, 7) clean. <IMAGE>
Patent DE-3539847-A1 (DE)
Title: Method for suspending solid particles, and application thereof
Inventor: BOLLENRATH FRANZ-MICHAEL DR
IPC: B01F3/12
Filed: 1985-11-09
Abstract: The invention relates to a method for suspending solid particles in a liquid. A horizontal stirred vessel is used which is equipped with a coaxial stirrer shaft on which at least one stirrer is positioned. The agitator is partly or completely immersed in the liquid. The method is suitable for removing volatile components and liquid components from solid particles in a liquid phase.
Patent DE-3602688-A1 (DE)
Inventor: PAQUES ERIC-PAUL DR
IPC: A61L2/04
Filed: 1986-01-30
Abstract: The process for the purification and, where appropriate, isolation and, where appropriate, pasteurisation of a solution of alpha2-antiplasmin entails, for the purification, dialysis against an aqueous solution of low ionic strength and removal of the resulting sediment. To isolate a particularly pure antiplasmin it is furthermore possible to purify the solution by chromatography using plasminogen bound to a solid phase. Also described is a process for the inactivation of organisms in an antiplasmin solution by heating in the presence of stabilisers. Plasmin prepared in this way can be used for therapeutic purposes.
Patent DE-3609377-A1 (DE)
Title: Hydrodynamic clutch with parking position
Inventor: STEPHAN ANTON
IPC: F16D47/06
Filed: 1986-03-20
Abstract: The hydrodynamic clutch comprises a pump impeller (1) and a turbine wheel (2) and a locking device (6) actuated by centrifugal force. Below a certain rotational speed, the locking device (6) rotationally connects the pump impeller (1) and the turbine wheel (2) to one another. The locking device (6), which comprises a plurality of locking pawls (7), each capable of swivelling about a pin (8), and receiving pockets (9) for receiving these locking pawls (7), is elastically supported in relation to the pump impeller (1). In this way force peaks, which can occur after the locking pawls (7) have dropped into the receiving pockets (9), are significantly reduced. <IMAGE>
Patent DE-3613294-A1 (DE)
Inventor: TRUEMPLER WALTER DIPL ING
IPC: H02K7/102
Filed: 1986-04-19
Abstract: In the case of a brake for a motor, in particular an alternating current motor with a solenoid, in order to improve the dynamic characteristics without increasing the power loss it is proposed to divide the coil of the solenoid (2) into two part coils (3, 4), by means of an intermediate tap (6), one of these two part coils being located on a freewheel circuit. <IMAGE>
Patent DE-3613577-A1 (DE)
Title: Device for eliminating troublesome splashing of water by vehicle tyres
Inventor: DEMIRSOY NURI
IPC: B62D25/18
Filed: 1986-04-22
Abstract: The device for eliminating troublesome splashing of water by vehicle tyres consists of a planar structure which is intended for arrangement in the circumferential area of the tyre and whose surface which faces the respective tyre is provided with a plurality of flexible, thin, at least mainly upright pegs. In this device, the configuration of pegs is divided by ribs extending in the circumferential direction and/or rib sections into a plurality of individual configurations which have the shape of annular sections.
Patent DE-3615243-A1 (DE)
Title: Rake conveyor for treatment plants for rivers and bodies of water
Inventor: OTTO KARL
IPC: E02B8/02
Filed: 1986-05-06
Abstract: Published without abstract.
Patent DE-3624410-A1 (DE)
Title: Packaging device
Inventor: DEMPFLE JOSEPH
IPC: B65D3/22
Filed: 1986-07-18
Abstract: A container 1, 3, 5 wound from fibre material layers 7, 10 or an installation part 4 wound from fibre material layers 7, 10 for a container 16 is indeed intended to absorb moisture from the interior 9, but also to be able to be dried out easily. For this purpose, a water barrier and water vapour barrier 11, 17 is arranged on the side of the innermost fibre material layer 10 facing the container interior 9. The end edges of the fibre material layers 7, 10 which are open towards the container interior 9 are provided with a water vapour barrier seal 14. A hygroscopic layer 12, in particular a layer of paper, is arranged on the inside on at least one layer 11. <IMAGE>
Patent DE-3629083-A1 (DE)
Title: Method and apparatus for the production of cigarette wrappers
Inventor: SCHMIDT HANS-HERBERT
IPC: A24C5/46
Filed: 1986-08-27
Abstract: In the production of cigarette wrappers composed of a wrapping sheet tube (27) and a tip tube (41), the wrapping sheet tubes are cut from a continuous tube (4) by means of a transverse rotary cutter (21) and the ends compressed during this cutting are widened again by a stationary conical guide (28), and the wrapping sheet tubes are then pushed, with the assistance of an acceleration means (42) acting on the long sides, onto hollow mandrels (39) carrying the wrapped tip tubes in its interior. <IMAGE>
Patent DE-3630179-A1 (DE)
Inventor: OPELT CHRISTIAN
IPC: G11B20/18
Filed: 1986-09-04
Abstract: A method for drop-out compensation during the reproduction of magnetically recorded signals, which signals are reproduced from several tracks of a record carrier and are combined into a monochannel signal. In this method, a drop-out identification signal is produced in each channel. Further, at least one bit combination of the digital signal exhibiting time errors is reserved for the transmission of the drop-out identification signal. The drop-out identification signal is subjected, together with the digital signal, to a time error correction. The drop-out identification signal, corrected with respect to time errors, is used for controlling a drop-out memory in a manner such that in the case of a drop-out, the output signal of the drop-out memory is inserted instead of the disturbed signal part into the monochannel signal corrected with respect to time errors, while with a non-disturbed signal, the drop-out memory is reloaded.
Patent DE-3641864-A1 (DE)
Inventor: HEGENDOERFER MAX DIPL ING
IPC: H04N5/782
Filed: 1986-12-08
Abstract: The selection of a transmission to be recorded during the programming of a video recorder, using a programme preview transmitted on several teletext pages in the teletext service, using a remote control transmitter, has hitherto been done awkwardly by inputting the number of the desired teletext page number and stepping step by step through the transmissions of the teletext page shown on the screen. The novel device is intended to simplify and accelerate the selection process. The remote control transmitter contains keys and when these are operated, automatically defined jumps are carried out within the entire programme preview. Programming of a video recorder. <IMAGE>
Patent DE-3702041-A1 (DE)
Title: Method of selecting a symbol to be represented from a large number of symbols of a symbol game arrangement of a coin-operated automatic amusement machine
Inventor: GAUSELMANN PAUL
IPC: G07F17/34
Filed: 1987-01-24
Abstract: Method of selecting a symbol to be represented from a large number of symbols of a display member of a symbol game arrangement of a coin-operated automatic amusement machine. In the automatic amusement machine with a symbol game arrangement designed as an imitated dice, the number of symbol combinations is smaller in relation to known symbol game arrangements which represent a win value symbol. With the method according to the invention, win-promising symbol combinations which are formed from a large number of identical symbols are to be repeated less frequently. A symbol combination which decides on win or no win consists of a number of symbols which are determined in consecutive part draws. After each part draw, the symbol stock increases for a subsequent part draw by the symbols of the previous part draw which have not been played out. The use of the method is suitable because of an infrequent repetition of a symbol combination, consisting of a large number of identical symbols in coin-operated automatic amusement machines with win possibility.
Patent DE-3707221-A1 (DE)
Inventor: HOFMANN HANS-PETER
IPC: C09D17/00
Filed: 1987-03-06
Abstract: A cationic pigment dispersion which is suitable in particular for preparing paper-coating compositions contains  (a) a pigment component; (b) a cationised polymer which surrounds the pigment particles as a protective colloid and has been obtained from hydrophilic polyacrylates or polymethacrylates, degraded starches or degraded modified starches, methylcelluloses, hydroxymethylcelluloses, carboxymethylcelluloses, degraded alginates, proteins and/or polyvinyl alcohol and which raises the zeta potential of the dispersion containing the enrobed pigment particles to the isoelectric point or into the cationic range; (c) and optionally a cationic polymer or a quaternary ammonium compound as a dispersing agent for the colloid-enrobed and -cationised pigment particles.
Patent DE-3709794-A1 (DE)
Title: Teaching and learning apparatus for mathematical instruction in the number range from 1 to 100 at elementary schools and special schools for those with learning and seeing difficulties
Inventor: FRISCH ELISABETH
IPC: G09B19/02
Filed: 1987-03-25
Abstract: The computerised teaching and learning appliance for the number range 1-100 is a versatile, effective teaching and learning means with a unique range of functions, which combines in a single appliance the demonstration possibilities of known calculating machines and demonstrates the numerical straight line. To do this, use is made of a moving frame which uses inscribed counting units in 4 possible colour settings which can be moved in 3 rows and indicates the decimal system. Possible uses in mathematical instruction: Number formation, counting exercises, number range expansion, number relations, carrying tens, all forms of basic computation as advances on the numerical straight line, formation of tables and possibility of self-monitoring. This appliance can also be produced as a learning means in the manner of a toy, suitable for children, for the number range 1-20. With appropriate modifications it can be used as a table-top appliance for those with learning and seeing difficulties and the blind. It is always ready for use and ideally equipped for the most varied requirements, as well as enhancing performance and developing pleasure in learning.