baber/WOPTO huggingface dataset:
Patent DE-3308280-A1 (DE)
Title: Stationary filter unit for separating the solid constituents from the liquid constituents of grinding slush
Inventor: RASCH JUN WERNER
IPC: B01D29/27
Filed: 1983-03-09
Abstract: In a stationary filter unit for separating the solid constituents from the liquid constituents of grinding slush produced in grinding slops during grinding of base metals such as aluminium, which slush results from precipitation of grinding dust produced by spraying finely divided water into a grinding dust collection vessel and is washed out of the vessel and discharged into a channel open at the top, the channel ends in a pit open at the top. A framework is arranged in the pit, in which framework a plurality of filter sacks open at the top are mounted. The water level is kept below the lower ends of the filter sacks. A dish-shaped distribution body is provided above the filter sacks, into which distribution body the grinding slush is passed. The distribution body extends over a multiplicity of filter sacks and has an outlet opening in the region of each of these filter sacks. A closing member controlled by the water level in the filter sack is provided for each of the filter sacks, by means of which closing member the associated outlet opening can be shut off when the water level exceeds a preset height.
Patent DE-3310693-A1 (DE)
Inventor: HARTWIG JUERGEN DR ING
IPC: C22C38/18
Filed: 1983-03-24
Abstract: The corrosion resistant chromium steel which includes 3 to 45% chromium, 0.2 to 5% nitrogen and other elements. Its structure contains at least 50% ferromagnetic structure components. It is directly magnetizable and, at 400 DEG  C., has a yield strength of Rp0.2>400 N/mm2 and, at 600 DEG  C., a yield strength of Rp0.2>250 N/mm2. To produce this chromium steel, a prealloy containing at least 50% ferromagnetic structure components is nitrogen enriched under pressure, is then hot worked, then annealed at 800 DEG  to 1250 DEG C. and finally cooled to room temperature. A tempering treatment at 450 DEG  to 750 DEG  C. may follow.
Patent DE-3311965-A1 (DE)
Title: Method and device for manufacturing concrete panels
Inventor: LOEOEV BJOERN
IPC: B28B7/46
Filed: 1983-03-31
Abstract: A method for manufacturing concrete panels by means of a moulding machine is described, the moulding machine having a large number of mould members, each of which is provided with a mould receptacle (3) which in turn has at least one mould trough (10, 11) for receiving wet concrete with water excess. A concrete mass in the mould trough is pressed into a concrete panel in a pressing station, the mould receptacle working together with an upper pressing plate (58) and a lower pressing plate (13). In this connection, according to the invention, the water which is pressed out during the pressing process on the two pressing plates (13, 58) of the just pressed concrete panel is drawn off from the mould trough(s) (10, 11) by an upper and a lower off-take system, in which an underpressure is applied and maintained during the pressing process. A device for implementing such a method has a moulding machine with a large number of moulding members, each of which is provided with a mould receptacle (3) with at least one mould trough (10, 11). The mould receptacle (3) is in this connection designed in such a manner that each mould trough (10, 11) is provided with an upper and a lower pressing plate (13, 58) in a pressing station for pressing concrete panels. By an upper and a lower duct system for removing the excess water pressed out on the pressing plates (13, 58) during the pressing process, it is ensured by means of an underpressure device, which can be connected to these duct systems during the pressing process, that the water emerging on the surfaces of the just pressed concrete panel (1) can be removed suitably and safely. <IMAGE>
Patent DE-3313366-A1 (DE)
Title: Basin for peelings for built-in sinks or as a built-in element for kitchen worktops
Inventor: BLANC WALTER
IPC: B65F1/14
Filed: 1983-04-13
Abstract: Published without abstract.
Patent DE-3314833-A1 (DE)
Title: Suspension element for building system
Inventor: JUERGENS WALTER DR ING
IPC: E04G17/06
Filed: 1983-04-23
Abstract: The invention relates to the rapid erection of formwork and the possibility of easily removing the formwork. For this reason, a suspension element is proposed which permits, in an ideal manner, attachment of the formwork to the supports and removal thereof.
Patent DE-3318228-A1 (DE)
Title: Digital wave filter
Inventor: GOECKLER HEINZ DIPL ING
IPC: H03H17/02
Filed: 1983-05-19
Abstract: The invention relates to a digital wave filter with single-gate circuits and adapters and is characterised in that a transformation adapter is inserted between the adapter and the single-gate circuit for transformation of a first complex frequency plane w into a second complex frequency plane z. The transformation is performed by means of a linear shift through a coefficient  gamma  where / gamma / < 2. In narrowband digital filters, the filter coefficient sensitivity can be substantially reduced. Furthermore, the signal-to-noise ratio is improved or the signal word length within the filter can be reduced. The limit cycle amplitudes are also reduced.
Patent DE-3320804-A1 (DE)
Title: Steerable castor
Inventor: VOLLBERG FRITZ
IPC: B60B33/02
Filed: 1983-06-09
Abstract: A steerable castor which is provided with a locking device serves to block the rolling movement of the running wheel and to lock the castor fork mounted rotatably by means of a swivel bearing. The locking device has a locking lever which interrupts both the rolling movement of the running wheel and the swivel movement of the castor fork, is spring-loaded in the release direction, is acted on via an expansion element actuated by a foot lever and is mounted on an axle bolt which passes through the hollow of the castor fork and is held in bearing points of the fork legs. In order, on the one hand, to be able to arrange the locking device in such a way that it is directed either towards the leading side or towards the trailing side and, on the other hand, has a design which is simple in terms of assembly and production, the longitudinal centre of the swivel bearing and the longitudinal centre of the bearing points which form the axle bolt are located approximately in a plane, the foot lever, the expansion element and the locking lever being connected to one another via supporting and contacting faces.
Patent DE-3322108-A1 (DE)
Title: Speech alerting device
Inventor: RUCKDESCHEL HORST ING GRAD
IPC: A61F11/04
Filed: 1983-06-20
Abstract: The invention relates to a speech alerting device having an electroacoustic transformer which transforms electric signals which correspond to acoustic events into mechanical vibrations which are transmitted onto the skin. The aim is to achieve a small converter (vibrator 6) which is as highly efficient as possible and can be worn, for example, on the wrist in the form of a wrist watch. Use is made for this purpose of a coil (13) into which a magnetic core (17), which is mounted, for example, in a diaphragm (18) in a manner resilient with respect thereto, projects as armature. The magnetic return path is formed in this case by the housing (14) which carries both the diaphragm (18) and the coil (13). A reduction of the desired order of magnitude in the size of the vibrator (6) is thereby achieved. In order to increase the efficiency, the invention provides a signal-transmitting element (10 and 22) at both ends of the magnetic core (17). A vibrator (6) according to the invention is particularly suitable for speech alerting in the case of deaf persons. <IMAGE>
Patent DE-3323872-A1 (DE)
Title: Process for the preparation of elastic, open-cell, soft polyurethane foams having densities of at most 24 kg/m<3>
Inventor: VOGTEL PETER DR
IPC: C08G18/48
Filed: 1983-07-02
Abstract: Elastic, open-cell, soft polyurethane foams having densities of at most 24 kg/m<3> and having improved compressive strengths are prepared by reacting     a) polyisocyanates with b) a polyol mixture comprising from 99 to 80% by weight of a polyether-polyol having a functionality of 2-4 and an OH number of 25-60 which contains terminal secondary OH groups, and from 1 to 20 % by weight of an at least hexafunctional polyether-polyol having an OH number of 120-200 which has been obtained by reacting an alcohol having a functionality of at least 6 with alkylene oxides, preferably propylene oxide and/or ethylene oxide, in the presence of c) water and/or organic blowing agents, optionally with concomitant use of d) catalysts, stabilisers and further auxiliaries and additives which are known per se and are used for the production of mattresses and cushioning materials.
Patent DE-3323930-A1 (DE)
Title: Ballast for DC operation of one or more gas-discharge lamps
Inventor: WALZ ALFRED PROF DR ING
IPC: H05B41/00
Filed: 1983-07-02
Abstract: In a ballast for gas-discharge lamps which are supplied from the AC mains, especially fluorescent lamps, having a rectifier-multiplier circuit and a polarity-reversing circuit between the rectifier-multiplier circuit and the gas-discharge lamps, the switching elements which are independent of power are arranged in a housing (19), and the switching elements which are dependent on the power of the respective gas-discharge lamp are arranged in a second housing (20), which can be connected electrically and, if required mechanically, to the first housing (19), for production-engineering simplification and in order to simplify matching to different gas-discharge lamps. <IMAGE>
Patent DE-3324132-A1 (DE)
Title: Chamotte brick
Inventor: SPORKENBACH GUSTAV-ADOLF
IPC: E04C1/40
Filed: 1983-07-05
Abstract: In order to be able to use chamotte bricks also for insulation purposes, on the basis of the invention there are special layers provided on the rear side of the chamotte brick. In the case of a two-layer brick there is a layer of expanded clay provided on the rear side; in the case of a three-layered brick, the middle layer consists of expanded chamotte or of foamclay chamotte, whereas here the outer layer is also produced from the expanded clay. As a result, a good temperature resistance is achieved and at the same time an excellent insulating effect. The bricks are preferably produced in such a way that form fitting is brought about by the expanding, but form fitting can also be achieved by extrusion on two extruders which feed the material to a common die ring, which comes into consideration preferably for the bond between the chamotte layer and the foamclay chamotte layer.
Patent DE-3326425-A1 (DE)
Title: Carrier tube for cross-wound bobbins and cross-wound packages
Inventor: BEFFART HANS DIPL ING
IPC: B65H75/10
Filed: 1983-07-22
Abstract: Carrier tube for cross-wound bobbins and cross-wound packages, especially for the bleaching and dyeing of shrinking yarns, consisting of a porous sheet-like structure with elastic properties which has a comparatively small thickness and which, to improve its resilience, possesses curves distributed over the surface in the direction of the thickness, the curves being formed by domes, and the domes overlapping one another in the circumferential direction.
Patent DE-3331108-A1 (DE)
Title: Process for the preparation of lymphotoxin and of lymphotoxin mRNA
Inventor: GUENTHER ADOLF
IPC: C07K14/195
Filed: 1983-08-30
Abstract: The present invention relates to a process for the preparation of lymphotoxin and lymphotoxin mRNA by incubation of transformed T lymphocytes in permanent culture and subsequent removal of the cell products produced in this way.
Patent DE-3332064-A1 (DE)
Inventor: PIESTERT GERHARD DR
IPC: C09K3/10
Filed: 1983-09-06
Abstract: 1. An anaerobically curing sealing compound consisting of a liquid, polymerizable monomer component and a source of free radicals which initiates polymerization of the monomers under the sealing conditions, characterized in that it additionally contains 10 to 80% by weight, based on the total weight of the sealing compound, of a permanently tacky mass which provides the reactive sealing compound with permanent tackiness and with plastic-elastic properties in its cured state.
Patent DE-3336854-A1 (DE)
Inventor: FEICHTINGER KURT
IPC: G01B7/00
Filed: 1983-10-11
Abstract: An improved apparatus and process for sensing a test object by means of a switching sensor which is movable relative to the test object, in which the relative position between the test object and the switching sensor is measured by a measuring instrument. The switching sensor generates a switching signal at the moment of contact with the test object in order to cause the instantaneously prevailing measuring value of the measuring instrument to be retained. Such measuring values commonly are characterized by sensing errors as a function of the sensing speed and/or the material pairing between the switching sensor and the test object. In order to correct for such sensing errors the measuring value present at the moment of contact between the switching sensor and the test object is added with previously determined correction values for correcting errors resulting from the velocity of approach between the test object and the switching sensor and/or for the material pairing between the switching sensor and the test object.
Patent DE-3342680-A1 (DE)
Title: Spinning machine for chemical fibres
Inventor: SCHIPPERS HEINZ DIPL ING DR
IPC: D01D13/00
Filed: 1983-11-25
Abstract: A spinning machine for chemical fibres, having a plurality of winding heads (6) which are designed as sound-insulated boxes for noise reduction, is described. A flexible curtain (15) consisting of bar members engaging in one another in an articulated manner is horizontally movable between the end face of each winding device (6) and the longitudinal side between two adjacent winding devices (6, 6'), in such a way that the servicing side is exposed when the curtain (15) is located on the common longitudinal side between two winding devices (6, 6'). A concealment of other components of the winding device (6) which are important for the servicing is thereby avoided, and in addition noise shielding relative to the adjacent winding device is achieved during the bobbin change and other servicing operations. <IMAGE>
Patent DE-3345837-A1 (DE)
Title: Brake-pressure control unit
Inventor: SCHAEFER ERNST DIETER
IPC: B60T8/28
Filed: 1983-12-19
Abstract: The brake-pressure control unit has a control valve with a control piston (15) acted upon by a control force, on which a recess (25) is provided for receiving an inertial body (13) movable as a function of the deceleration. A pressure medium chamber (34) of variable volume is defined by an area of the control piston (15) and is connected to the inlet (3) by way of a throttle device. The throttle action produced in the event of displacement of the control piston (15) supports the control force and allows the reversal pressure to be raised to a value which lies above the value of the pressure built up at the moment of the deceleration-related movement of the inertial body. <IMAGE>
Patent DE-3347775-A1 (DE)
Title: Hydrokinetic machine, in particular gas-supplied engines
Inventor: BETZ WOLFGANG DR ING
IPC: F01D23/00
Filed: 1983-08-25
Abstract: In a hydrokinetic machine for converting flow energy into useful energy, components of essentially identical design moving in the same direction along a continuous circular track are provided. The circular track is guided or fixed by at least two deflection rollers, the circular track and/or the components being in power-transmitting engagement with the deflection rollers in the deflection region of the rollers. The components are designed as compact blades of the type found in gas turbine construction and, in operation, supply rotary drive to the deflection rollers when flow energy occurs, it being possible, for example, for a current generator to be coupled to the said rollers.
Patent DE-3404364-A1 (DE)
Title: Apparatus for the production of wire-comb bindings for paper and printed products
Inventor: WITTE FRITZ DIPL ING
IPC: B21F45/16
Filed: 1984-02-08
Abstract: In a device for producing wire-comb bindings for paper and printed products, the wire 2 to be drawn off from a supply reel or a drum by the wire-comb forming device 1 is formed in the latter to give a wire comb. In this process, the wire-comb forming device 1 performs intermittent withdrawal movements which, in accordance with the invention, are to be converted into a continuous movement of the wire. This is achieved by means of a rocking lever 6 which is driven by the wire-comb forming device 1 via a control cam 7 on which is supported a roller 4 and which can be pivoted backwards and forwards about the axis 5 of a fixed roller 3 by the control cam 7. In this arrangement, the diameters of both rollers 3, 4 are equal and, in the wire take-off direction, the wire 2 is first of all guided over the fixed roller 3 and then over the roller 4 pivotable by means of the rocking lever 6. <IMAGE>
Patent DE-3406665-A1 (DE)
Title: Screw extruder for processing explosives
Inventor: MUELLER DIETMAR DIPL CHEM DR
IPC: B29C48/395
Filed: 1984-02-24
Abstract: In a screw extruder for processing explosives, having two screw shafts which have screw segments and kneading segments which mesh with one another consecutively and, if appropriate, in alternating sequence and are in rolling contact with one another, said screw segments and kneading segments are joined via a driver-type fastening to the screw shafts so as to be non-rotatable, where, in order to reduce the safety hazard, the slots in the screw segments and kneading segments have a part-circular cross-section and the shaft is designed as a profile shaft having a driver with the corresponding part-circular cross-section.
Patent DE-3410832-A1 (DE)
Title: Positive displacement machine, in particular cycloidal planetary mechanism with an integrated hydraulic motor
Inventor: BRAREN RUDOLF
IPC: F04C2/10
Filed: 1984-03-23
Abstract: A positive displacement machine, in particular a cycloidal planetary mechanism with an integrated hydraulic motor, having a housing (1, 2, 3) with connections (31, 32) for the feeding and discharge of pressure medium, having displacement chambers (9) formed by the meshing engagement of a sun wheel (4) in a planet wheel (5) which executes a revolving movement eccentric to the axis (M) of the sun wheel (4). Between the planet wheel (5) and the housing (1, 2, 3) there is a positive connection which prevents rotation of the planet wheel (5) about its own axis (0). A revolving timing element (8) with timing apertures ensures the feeding and discharge of pressure medium to or from the displacement chambers (9). The positive connection between the planet wheel (5) and the housing (1, 2, 3) is preferably formed by bolts (7) which engage in recesses (73) at the front sides of the housing. Since the recesses (73) surround the bolts (7) over their circumference, the rims of the recesses are subjected to low loading, smooth running and low wear thereby being obtained. <IMAGE>
Patent DE-3413155-A1 (DE)
Title: Closure or coupling device
Inventor: BAUDER KURT
IPC: F16L41/08
Filed: 1984-04-07
Abstract: A closure or coupling device comprises a clamping body in the gap between two mutually concentrically surrounding parts , at least one of which is bounded on the side facing the gap by a conical surface which grips axially around the clamping body in the direction of joining, the clamping body consisting of elastically resilient, non-compressible material, having a thickness in the radial direction which exceeds the maximum width of the gap, and being arranged in the region of the conical surface, furthermore a support device for the clamping body being provided, which prevents appreciable axial displacement, when the parts are joined together, in the direction of the opening gap between the conical surface and the counter-surface, and the smallest spacing between the conical surface projected onto a plane extending in the transverse direction and the counter-surface being 0.1 to 0.5 times as large as the radial thickness of the clamping body.
Patent DE-3416416-A1 (DE)
Title: Aircraft undercarriage
Inventor: KELM HANS-DIETER
IPC: B64C25/40
Filed: 1984-05-04
Abstract: A device is specified which brings the aircraft wheels up to the aircraft speed before landing, without any additional energy consumption, in order to reduce the friction losses occurring during the landing. This is achieved by means of ribs which are fitted externally on the wheels and are shaped such that they are caused to rotate by the wind of the aircraft's motion. The ribs or similar suitable means can be fitted to the tyre or to the rim.
Patent DE-3421806-A1 (DE)
Title: Microswitch
Inventor: GERBER HERMANN
IPC: H01H13/28
Filed: 1984-06-12
Abstract: A microswitch having a switching rocker (7) which is supported on one side (20) can be operated via a plunger (2) which acts on a tension spring (3). The free end of the switching rocker (7) is divided into two spring-arm pairs (8, 9 and 10, 11) which have different spring characteristics. The spring arms (8, 9, 10, 11) interact with stationary contact profile edges (14, 15 and 12, 13). This results in multiple contact-making which is suitable for small switching voltages and currents, as well as a tilting behaviour in which a minimum contact pressure is maintained at the start of the tilting process. 
<IMAGE>
Patent DE-3426610-A1 (DE)
Title: Device for storing merchandise, in particular foods in refrigerated furniture of self-service shops
Inventor: SCHICH ERICH
IPC: G07F11/60
Filed: 1984-07-19
Abstract: To supply foods, in particular from refrigerated furniture of self-service shops, compartments (2) having a removal opening (3) are provided, in which compartments the merchandise stored moves forwards for the removal of items or portions and moves back after removal. The merchandise can be conveyed, ordered according to type, via shafts, for example from a refrigerated chamber into the removal compartment assigned to it with the aid of a feed drive operating mechanically, hydraulically, pneumatically or electrically and controlled automatically by merchandise sensor or by hand. When triggered by hand, the merchandise required can also be discharged into a trough for removal. <IMAGE>
Patent DE-3426905-A1 (DE)
Title: Electric hot-water storage heater
Inventor: SCHAEFER KARLHEINZ
IPC: F24H9/20
Filed: 1984-07-20
Abstract: A hot-water storage heater reheats when the hot water available at a given time of day is not sufficient for the requirement expected in a following period of time. In order to detect the hot-water quantity consumed, a flow counter 10 is connected into the water pipe, an approximately constant outlet temperature being taken as a basis. The flow quantity is integrated over a period of time and compared at its end with a hot-water quantity set value. <IMAGE>
Patent DE-3427400-A1 (DE)
Title: 2,5-Di(4'-aminobutyl)-3,6-dimethylpyrazine, a process for the preparation thereof, and the use thereof as a chain extender in the preparation of polyurethane plastics
Inventor: SCHOLL HANS-JOACHIM DR
IPC: C08G18/10
Filed: 1984-07-25
Abstract: The invention relates to the novel chemical compound 2,5-di(4'-aminobutyl)-3,6-dimethylpyrazine (I), to a process for the preparation thereof starting from 3,7-bisacetamino-2-heptanone, and the use thereof as a chain extender in the preparation of polyurethane plastics. <IMAGE>