baber/WOPTO huggingface dataset:
Patent DE-3038239-A1 (DE)
Title: Steam generator for gas cooled reactor housed in pod - of pressure vessel has straight tubes with inclined compensator tubes in zone free of gas flow
Inventor: HANDEL HUBERT
IPC: F22B1/18
Filed: 1980-10-10
Abstract: A steam generator housed in a pod or vault of a nuclear reactor pressure vessel comprises a cylindrical casing with primary circuit coolant gas inlet (8) and outlet (10), with an annular array of straight heat exchanger tubes (3) parallel to the axis and surrounding the central steam discharge duct (16); feedwater enters through a number of feedwater pipes (19) into a manifold (21) at the bottom, closed off by a tube plate (20); behind this tube plate there is a space (23) through which no coolant gas circulates, bounded at its other end by a transverse plate (12) sealed to the cylindrical casing; the tubes run as inclined compensating tubes (24) through this comparatively cool space (23), pass through the dividing plate (12), and from there onwards, run as straight tubes (3) through the economizer (6), evaporator (5) and superheater (4) zones to the top tube plate (13), where they discharge into the steam header (15) communicating with the axial steam outlet duct (16). A simple straight tube arrangement is obtd. the inclined compensating lengths of tube (24) are comparatively cool and are located in a vibration-free zone since no coolant gas flows over them.
Patent DE-3044436-A1 (DE)
Title: Waste material disposal by mixing with lignite ash - and opt. adding water, to form mixt. hardening to water-impermeable material
Inventor: WERNER HANS DR
IPC: A62D3/00
Filed: 1980-11-26
Abstract: In a process for harmlessly disposing of waste materials by treatment with alkaline-reacting substances and recovering as a solid prod., the waste materials, as solids or as aq. solns. or suspensions, are mixed homogeneously with lignite ash, esp. basic lignite power-station ash, opt. with the addn. of water, to achieve paste- to fluid consistency. Wt. ratios are adjusted so that the mixing prod. hardens to a water-impermeable compsn. The mixts. can contain 100 pts. wt. lignite power-station ash and 50-75 (60-65) pts. wt. dil. acid waste. Solid waste is mixed homogeneously with the lignite power-station ash before adding water. For bonding heavy metal salts present in the dil. acids, the mixts. pref. exhibit a basic reaction and are capable of solidifying to a compact mass. Pasty mixts. can be compacted mechanically. The process can be used for bonding aq. waste acid solns., esp. dil. acids from TiO2 prodn. or from organic pigment and dyestuff prodn. The mixts. can be used in (i) sealing waste deposits, (ii) damming underground- and/or surface water flows in underground working, hydraulic engineering or mining and (iii) filling subterranean caves or mining cavities, e.g. used for disposing of container packed nuclear or chemical waste. The process allows the simultaneous non-polluting disposal of lignite power-station ash and waste acids, while forming a solid, compact, inert material, resistant to leaching with water.
Patent DE-3048796-A1 (DE)
Title: Hand-held vacuum cleaner - is driven by battery and fitted into cleaner housing and enclosed by filter bag
Inventor: STETTNER GERHARD ING GRAD
IPC: A47L9/28
Filed: 1980-12-23
Abstract: The hand-held vacuum cleaner comprises a housing (1) containing a fan driver by an electric motor and with a removable cover (6) sealing the dust collection space (5). The electric motor is fed from a battery fitting inside the vacuum cleaner housing and supported by a support frame (7) attached to the housing adjacent the cover (3) for the fan and cooperating with a filter bag (13) which encloses the battery. Pref. several battery cells are used enclosed around the outside by spacing struts (8) extending from the support frame (7) and maintaining the filter bag (13) in its extended state. The vacuum cleaner has an ergonomically acceptable design and remains compact.
Patent DE-3049177-A1 (DE)
Title: Pick=up system which measures change in capacitance - between two plates to detect deflection of arm carrying pick=up head
Inventor: RICHTER GERD DIPL ING
IPC: G11B3/12
Filed: 1980-12-24
Abstract: The system has a sprung arm carrying a head (i.e. electromechanical transducer) and mounted on a casing. A capacitive detector measures the arm's deflections. A control signal is derived from this deflection to control the force with which the head rests on the recording disc. The detector consists of two metal plates (8,9) on the arm (5) and on the casing (7). The planes of the plates lie parallel to the deflection (Y) of the arm and overlap one another. The area of the plate attached to the arm is smaller than that of the other plate and its length in the direction (X) orthogonal to the direction of deflection is also less than that of the other plate.
Patent DE-3100021-A1 (DE)
Title: Fuel cooler
Inventor: GROPP REINHARD DIPL ING
IPC: F01P3/18
Filed: 1981-01-02
Abstract: The invention relates to a fuel cooler for the fuel flowing from the tank to the engine, consisting of a cylindrical housing through which a coolant flows axially, while the fuel flows through axially extending annular spaces in the housing via radial connections. According to the invention, the heat-exchanging faces of the annular spaces in the fuel cooler are constructed as corrugated tubes, and the radially adjacent annular spaces at one end are connected to one another via a deflection. The result is high heat transfer coefficients in conjunction with comparatively low pressure loss for the media flowing through. Furthermore, it is possible for fuel to flow sequentially through two radially adjacent annular spaces, so that the heat transfer surface is virtually doubled. Finally, the corrugated tubes employed can compensate thermal expansions that occur without appreciable build-up of stress. <IMAGE>
Patent DE-3100493-A1 (DE)
Title: Alternating flasher for two-wheeled vehicles
Inventor: BIALUCHA WERNER
IPC: B62J6/00
Filed: 1981-01-09
Abstract: The invention relates to an alternating flasher for two-wheeled vehicles having a generator, having a rectifier, having a capacitor which is connected in series to this rectifier, having a single-pole change-over switch for switching on the indicator lights which are fed by the generator for turning to the right and turning to the left and having an electronic circuit which produces the flashing frequency. Known alternating flashers of this kind have in particular the disadvantage that they are of comparatively complicated design and do not readily indicate the failure of an indicator light. A new alternating flasher is provided in which a freely oscillating multivibrator is used as frequency-producing switch and in which a diode is connected on the one hand directly to one pole of the generator and on the other hand to the other pole via a RC element, a switching element being connected in parallel to this RC element and the switching element, the diode and the resistor of the RC element being dimensioned in such a way that under normal circumstances (indicator lights functioning correctly) the switching element is not activated whereas in the event of one indicator light failing the switching element is driven and resistors are connected in parallel to the time-determining resistors of the multivibrator. <IMAGE>
Patent DE-3103657-A1 (DE)
Title: Feeder for bulk material, especially for sand or gravel
Inventor: STICHWEH FRITZ
IPC: B65G47/19
Filed: 1981-02-04
Abstract: What is indicated is a feeder for bulk material, especially for sand or gravel, which contains a periodically actuated metering element delivering the bulk material out of a supply silo onto a conveyor band. In order to guarantee a uniform feed even when the bulk material has no uniform grain composition and contains a high proportion of dirt and water, the feeder is assigned a sensing device which senses the height of the fed bulk material and which switches off the drive of the metering element when the bulk material exceeds a predetermined height, and which switches the drive of the metering element on again as soon as the height falls below a predetermined value again. This automatically ensures that never more bulk material than can subsequently be transported is fed. The sensing device consists either of a pivoting lever with a hollow body arranged at its free end and floating on the fed bulk material, the control for the drive of the metering device taking place in dependence on the pivoting position of the pivoting lever, or there are provided two electrodes of different length which form a circuit via the bulk material and which, via a relay, control the drive of the metering element in dependence on the height of the fed bulk material. <IMAGE>
Patent DE-3103722-A1 (DE)
Inventor: BUETTNER KURT
IPC: B23Q16/00
Filed: 1981-02-04
Abstract: 1. A stop device (9) for machines for the frontal working of timbers, more especially of window timbers, such as tenoning and slotting machines, with a device (4) for cutting the timbers to length which is connected upstream in the working direction of the tenoning spindle (3) and with a roller table (5) which conducts the workpieces past the cutting-to-length device and the tenoning spindle, characterised in that provided in the working sequence in front of the cutting-to-length device (4) is a fixed guide (10), extending perpendicularly to the direction of movement of the roller table (5), for a stop (11) which is displaceable along the guide and which engages over the roller table (5) in the initial position and which lies with its abutment surface (19) in a parallel plane to the direction of movement of the roller table (5), in which respect the stop (11) is driven by means of a toothed belt (12) reinforced by tensile strand inserts and is securable in various adjustment positions, predetermined by an electronic control, relative to the guide (10).
Patent DE-3111659-A1 (DE)
Title: Proximity switch with change-over switch output
Inventor: KASTL HEINER
IPC: H03K17/95
Filed: 1981-03-25
Abstract: The invention relates to an electronic proximity switch with an oscillating sensor circuit and a change-over switch output controlled by the latter. Proximity switches of this type of construction are particularly sensitive to wrong circuit connections, overvoltages and short circuits. The invention provides, in particular, protective measures for the series-connected output stage transistors of the two change-over switch outputs. In addition, a variable operating point of the circuit and simple adaptation to different supply voltages within a particular range are achieved by means of a resistor in the voltage feedline to the sensor and by means of a trigger stage, following the sensor circuit, with subsequent converting stage for switching the output transistors. <IMAGE>
Patent DE-3112457-A1 (DE)
Title: Device for burning fuels containing water
Inventor: BROCKS KLAUS-DIETER
IPC: F23L1/00
Filed: 1981-03-28
Abstract: A device for burning solid fuels containing water, in particular wood, straw, paper and/or mixed refuse, in a heating chamber of heating boilers has a combustion chamber (6) which can be inserted into the heating chamber (4) and is closed towards the heating chamber apart from an outlet opening (7) which extends over its length, runs in its lower vertex and opens into the heating chamber. Over the length of the combustion chamber (6), in its lower region but above the outlet opening, primary air is guided by at least one supply pipe and, furthermore, secondary air is supplied on both sides of this outlet opening via outlet openings (14) opening into the outlet region of the combustion products. To this end, one or two parallel primary-air supply lines with distributed air outlet openings can be arranged, extending over the length of the combustion chamber, above the outlet opening (7) and in the lower combustion chamber region, and in each case one secondary-air supply line (15) with air outlet openings (14) can be arranged on both sides of the outlet opening (7) of the combustion chamber (6), extending over the length of the combustion chamber and opening into the outlet region of the combustion products. The outlet openings (14) for the secondary air are designed expediently in a gap-shaped manner on the lower edge of the outlet opening (7) of the combustion chamber (6). <IMAGE>
Patent DE-3113258-A1 (DE)
Title: Mould for block-producing machines
Inventor: SCHNEIDER WERNER
IPC: B28B7/36
Filed: 1981-04-02
Abstract: The invention proposes a novel mould for concrete-block-producing machines, in the case of which the walls of the mould cavities comprise high-carbon-steel plates. Said high-carbon-steel plates are connected, in particular by a releasable adhesive bonding, to the mould walls which consist of a low-grade material.
Patent DE-3114619-A1 (DE)
Title: Drive, especially for light concentrators, in solar power stations
Inventor: BOESE FRIEDRICH-KARL DIPL PHYS
IPC: G05D3/12
Filed: 1981-04-10
Abstract: The drive consists of a linear motor (2), preferably a travelling-field induction motor, which can be moved in a deliberate manner along a semicircular metallic conductor (1) and is attached to a toothed rod (6) which can be displaced parallel to the conductor (1), in a frame (5). After reaching the desired azimuth position of the frame (5), a first brake (4) is operated which fixes its position with respect to the conductor (1). At the same time, a second brake (9) is operated which fixes the position of the motor (2) on the frame (5). If the motor (2) is operated further, the toothed rod (6) is displaced with respect to the frame (5) and causes a gearwheel (7) to rotate about a second pivoting axis (B), as a result of which the angle of a mirror (8) (which is firmly connected thereto) with respect to the horizontal is adjusted. The brakes (4 and 9) preferably have brake shoes (41, 49) which are pressed against the conductor (1) and the frame (5) by spring force and are optionally lifted out of their braking position under the influence of further induction coils when a power source (11) is switched on via a switch (10). <IMAGE>
Patent DE-3116481-A1 (DE)
Title: Metering device for pourable feed substances having a metering chamber which can vary in size
Inventor: KIEPER JOACHIM
IPC: G01F11/40
Filed: 1981-04-25
Abstract: This metering device can be used in chemical engineering. This metering system is suitable for foodstuffs, chemicals, feed substances and seeds, to name but a few examples. A continuously adjustable metering chamber determines the portion size according to the bulk volume. In special cases of controlled feeding of laboratory animals (preferably rats and mice), feed portions of 1.0 to 4.0 g are required per animal. To achieve this, a high degree of metering accuracy with variation coefficients of +/-2%, depending on the type and portion of feed, is required. To ensure that metering is carried out in a reliable manner, the chemical and physical properties of the bulk material must be homogeneous. These depend essentially on the angle of repose, the piled density, the grain size and/or the surface shape and the degree of humidity. The requirements described above regarding feeding equipment for laboratory animals and the characteristics of the components of the feed for laboratory animals make it possible to feed the animals in a reliable and controllable fashion using the continuously adjustable metering device instead of precision balances or other apportion devices. Up to now, animals used in most experiments which involve care of laboratory animals and use rodents have been fed ad libitum: i.e. the amount of the constantly available feed removed and consumed, and the frequency with which this occurs, are left to the animals. Now the metering device makes it possible to meter out feed substances in the form of granules or small pellets in quantities of 1.0 to 4.0 g with an accuracy of 1-2% either in a single batch or in a succession of batches. Individual portions of feed will be apportioned to rodents kept in conventional animal cages at preselectable times and at desired intervals. <IMAGE>
Patent DE-3117784-A1 (DE)
Title: Hochleistungs-tauchwaermepumpe
Inventor: BURKHART EUGEN
IPC: F24J3/00
Filed: 1981-05-06
Abstract: 1 Ein Thermokompressor (10) ist mit einem Spezialölgemisch (30) bis unterhalb des im oberen Teil des Thermokompressors (10) liegenden Arbeitskolben (4) aufgefüllt. Zur Ölgemischhärtung wird vorkomprimierte Luft (3 - 6 Bar) über das verschließbare Ventil (17) in den oberen Innenraum (9) des Thermokompressors (10) eingebracht. Zwischen rotierendem Laufanker (1) und stehendem Außenanker (2) wird Ölreibungswärme erzeugt. Diese sowie Leistungswicklungswärme (3) werden durch den rotierenden, als Pumpe wirkenden Laufanker (1) über das verlustlos zirkulierende Ölgemisch (30) über die gesamte Außenwand des Thermokompressors (10) an das ihn umspülende Heizöl (31) abgegeben. Oberhalb des Thermokompressors (10) ist eine Wärmespirale (14) eingebaut, die vom Druckmedium des Thermokompressorkolbens (4) Hauptwärme bis 115°C an das Heizöl (31) abgibt. Das im geschlossenen Behälter (16) bis 80 - 90°C aufgeheizte Heizöl (31) wird über eine dauernd laufende Ölpumpe ohne Mediumsverlust verwertet. Die erzeugte Wärme ist einsetzbar, z.B. über Lüfter zur Zimmer- und Wohnungsheizung, über Austauscher zur Brauchwassererwärmung, Speisung der Zentralheizung, Swimmingpoolerwärmung usw. Netzstromverbrauch zwischen 400 und 1000 Watt/Std., thermostatgesteuerte Laufunterbrechung, große Laufruhe, Leistungsverhältnis ca. 1 : 5 bis 1 : 8.
Patent DE-3117906-A1 (DE)
Title: Absorbable surgical suture material based on monocarbocellulose and process for its production
Inventor: JASNICKIJ BORIS GEORGIEVIC
IPC: C08B15/04
Filed: 1981-05-06
Abstract: Absorbable surgical suture material based on monocarboxycellulose of the general formula: <IMAGE>  where   m is the degree of polymerisation of the cellulose used and is in the range from 250 to 3300; p is the mole fraction of the D-glucopyranose ring in a polymer member and is in the range from 0.95 to 0.05; q is the mole fraction of the D-anhydroglucuronic acid rings and is in the range from 0.05 to 0.95; s is the mole fraction of the complex-bound D-anhydroglucuronic acid fragment, of the metal and of the ligand and is in the range from 0.03 to 0.55;   Me is a transition metal;   n is the valency of the transition metal and is >/= 4;   Lig are multidentate ligands; Dent is the number of coordinating atoms in the ligands and is >/= 2.   The essence of the process for producing the stated material comprises treating cellulose fibres first with nitrogen oxides, then over the course of 0.5-2.0 hours with a 0.5-2.0% strength solution of the salt of a transition metal whose coordination number is at least 4 in a suitable solvent, and finally over the course of 0.5-2.0 hours with a 1.0-2.0% strength solution of a multidentate complexing agent in a suitable solvent.
Patent DE-3119569-A1 (DE)
Title: Device for compounding plastic moulding compositions
Inventor: MUELLER WERNER DIPL ING
IPC: B29C48/44
Filed: 1981-05-16
Abstract: A device for compounding plastic moulding compositions has a planetary roll extruder which consists of a planetary roll part and a filling-screw part connected upstream thereof. The aim is, using a device of this kind, to achieve a high throughput with low technical outlay. For this purpose, two planetary roll extruders are arranged in parallel adjacent to one another and are equipped with a common drive and a common raw-material feed.
Patent DE-3129321-A1 (DE)
Title: Method and device for non-destructive checking of spot-welded connections
Inventor: FASTRIZKY VIKTOR SERGEEVIC
IPC: G01N27/90
Filed: 1981-07-24
Abstract: For the non-destructive checking of spot-welded connections, a low-frequency and a high-frequency electromagnetic primary field, both of which excite eddy currents, are generated in the welding spot nugget by means of an eddy current transformer (1) and a low-frequency measuring channel (22) and a high-frequency measuring channel (18) respectively, and a controllable commutator (30). The phase values of the field strengths of the resultant electromagnetic low-frequency and high-frequency field are determined. The quality of the welding spot nugget is determined in direct dependence on the value of the difference between the phase value of the field strength of the resultant high-frequency field and the phase value of the field strength of the resultant low-frequency field by means of a memory block (26) and a comparison block (27). The invention can be used in the machine, ship, aircraft and motor vehicle industry for defectoscopy and non-destructive checking of changes in the property of materials of different metal structures. <IMAGE>
Patent DE-3130456-A1 (DE)
Title: Filling-level indicator for suction cleaners
Inventor: STETTNER GERHARD ING GRAD
IPC: A47L9/28
Filed: 1981-07-23
Abstract: In a filling-level indicator for suction cleaners, measures are to be taken, by means of which the appliance is switched off in dependence on the degree of filling of the dirty water collection container (3). For this purpose, a pressure measuring device (17) is provided in a channel (10) between a suction fan (11) and the dirty water collection container (3) which pressure measuring device can give visual and/or acoustic signals and switches off the motor of the suction fan (11) at a given negative pressure. <IMAGE>
Patent DE-3132832-A1 (DE)
Title: Vegetable cutting device
Inventor: HEFTER GEORG
IPC: B26D3/11
Filed: 1981-08-19
Abstract: The vegetable cutting device for radishes, cucumbers, carrots and the like comprises a frame (1) with a threaded spindle (11) mounted rotatably in a threaded bearing (19) between its two axial ends. The threaded spindle (11) is provided at one of its ends with a drive crank (13) and bears at its other end a vegetable holder (15, 25) for the vegetable (27) to be cut. With axial spacing from the vegetable holder (15, 25), a blade (9) is attached to the frame (1) on the side of the threaded spindle (11) which is remote from the crank with axial spacing from said end. By rotating the threaded spindle (11), the vegetable to be cut is pressed by the blade (9) on a helical uniform path of movement. The threaded bearing of the threaded spindle (11) comprises a threaded segment (17) which is movable radially relative to said threaded spindle and is pressed against the threaded spindle (11) by a spring (21). The threaded segment (17) can be raised from the threaded spindle (11) by means of an eccentric (35), by which means said threaded spindle can be displaced freely. By means of an additional blade (29), which is displaceable parallel to the threaded spindle (11), the vegetable can be precut so that it can subsequently be chopped. <IMAGE>
Patent DE-3137002-A1 (DE)
Title: Hot gas flap in the exhaust pipe of a motor vehicle
Inventor: ABTHOFF JOERG ING DR
IPC: F02D9/06
Filed: 1981-09-17
Abstract: The invention relates to a hot gas flap in the exhaust pipe of a motor vehicle, in which the operating shaft is supported on one side in a sealing part fixed on the exhaust pipe and in a bearing part connected thereto. The sealing part is designed in such a way that as much heat as possible is dissipated so that a roller bearing can be used for the bearing part.
Patent DE-3139400-A1 (DE)
Title: Galvanic solid-state cell
Inventor: VOSS ERNST DR
IPC: H01M4/60
Filed: 1981-10-03
Abstract: The electrolyte which can be used in a galvanic cell in which at least one of the electrodes consists of a polyacetylene film which has been electrically charged by doping with cations or anions is a solid ion-conducting adduct consisting of an alkylene oxide polymer (polyether) and an alkali-metal salt. The resultant solid-state cell can even be made completely of organic material if polyacetylene films with mutually opposite doping are used for the two electrodes. Because their components can be readily decomposed, used cells of this type are not a source of environmental pollution.