baber/WOPTO huggingface dataset:
Patent DE-3320751-A1 (DE)
Title: Circuit arrangement for automatically adapting the volume of a loudspeaker to an interfering noise level prevailing at the loudspeaker location
Inventor: LEYSER KLAUS DIPL ING
IPC: H03G3/32
Filed: 1983-06-09
Abstract: A circuit arrangement for automatically adapting the volume of a loudspeaker to an interfering noise level prevailing at the loudspeaker location, particularly for mobile radio receivers such as car radios or the like, is specified which automatically calibrates itself at the receiving location after installation of the radio receiver and automatically corrects its calibration when the conditions at the receiving location change. The circuit arrangement exhibits a volume control (11), a microphone detecting loudspeaker and interfering noise signal, a voltage amplifier (15) amplifying the loudspeaker input voltage and an adding circuit (14) combining the microphone output voltage and the output voltage of the voltage amplifier (15) with opposite polarity. For the purpose of the automatic calibration, a calibration circuit (16) is provided which exhibits a sensor (18) for detecting a useful voltage component, originating from the loudspeaker signal, in the output voltage of the adding circuit (14) and a correction signal generator (19) which generates a correction signal changing the voltage gain of the voltage amplifier (15) in the direction of reducing the useful voltage component (Figure 1). <IMAGE>
Patent DE-3322067-A1 (DE)
Title: Building element, especially a fire-retarding building panel
IPC: C04B28/14
Filed: 1983-06-18
Abstract: A building element is described which consists of calcium sulphate hemihydrate and Portland cement and also further constituents which react endothermically, the calcium sulphate hemihydrate fraction being between 40 and 55 and the Portland cement fraction being between 20 and 45%, and endothermically reacting parts being single substances or mixtures in a quantity between 10 and 40% by weight. Glass fibres can be present up to 10% by weight, relative to dry matter. The mass is made up with water and can be processed either by casting or by the Hatschek method.
Patent DE-3323172-A1 (DE)
Title: Rock-burst valve
Inventor: NAUNDORF PETER
IPC: E21D15/51
Filed: 1983-06-28
Abstract: The invention relates to a rock-burst valve with a housing, which has at least one inlet passage and at least one outlet passage for a pressure medium, and a valve body which is axially displaceable in the housing and has a radial constriction which is defined on the one side by a piston acted upon by pressure medium and on the other side by a control piston loaded in the closing direction by a gas-pressure cushion. So that a rapid response and short opening times can be obtained while maintaining large cross-sections of flow with small control forces, the control piston is to be a slide piston, the peripheral seal of which interacts with a housing bore section arranged between inlet passage and outlet passage, and furthermore a sleeve axially displaceable between stops fixed to the housing is to be arranged between the slide piston and the gas-pressure cushion, which sleeve plunges with a closed end into the gas-pressure cushion and its open end facing the slide piston, up to a slide-piston stop, has an inside diameter which is identical to the inside diameter of the bore section.
Patent DE-3332657-A1 (DE)
Inventor: MUELLER HORST DIPL ING
IPC: H03K5/02
Filed: 1983-09-09
Abstract: 1. Interface circuit for digital signals having an input (1, 1'), downstream of which a first inverter (2) is connected, having a first npn transistor (5), the base of which is connected to the output of the first inverter (2), the emitter of which is connected via a first resistance (7) to a first output terminal (8), and the collector of which is connected to a connection terminal (4) for a positive supply voltage, having a first pnp transistor (6), the base of which is connected to the base of the first npn transistor (5), the collector of which is connected to earth and the emitter of which is connected to the emitter of the first npn transistor (5), having a second inverter (3), the input of which is connected to the output of the first inverter (2), having a second npn transistor (9), the base of which is connected to the output of the second inverter (3), the emitter of which is connected via a second resistance (11) to the second output terminal (12) and the collector of which is connected to the connection terminal (4), and having a second pnp transistor (10), the base of which is connected to the base of the second npn transistor (9), the collector of which is connected to earth, and the emitter of which is connected to the emitter of the second npn transistor (9).
Patent DE-3332979-A1 (DE)
Title: Method and device for generating a spectrum of random vibrations
Inventor: URECKIJ JAN SEMENOVIC
IPC: G01M7/02
Filed: 1983-09-13
Abstract: In the method for generating a spectrum of random vibrations, vibration of the product (1) is generated in advance in the predefined frequency range by means of variable-frequency harmonic vibrations and, in each selected monitoring point (a, b) of the products (1) to be tested, intrinsic values of the spectral density of the vibration acceleration are stipulated in each band of the predefined frequency range with the aid of a multi-channel random signal former (4), while the level (Kn) of the random output signal is calculated in each channel of this former by solving a linear equation system. The device contains a multi-channel former (4) which is connected to a vibrator (2) to which a product (1) under test is attached, vibration transmitters (3) which are attached to the selected monitoring points (a, b) and are applied via a switching unit (12) to the input of a signal analyser (13), a unit (16) for stipulating the parameters of the spectrum of random vibrations to be generated and a control unit (17). The device is also provided with a generator (10) for generating variable-frequency harmonic vibrations and a memory (14) which is connected to said generator. <IMAGE>
Patent DE-3333748-A1 (DE)
Title: Plough with mounted ground-working appliance
Inventor: DOPPSTADT WERNER
IPC: A01B17/00
Filed: 1983-09-19
Abstract: In a plough 10 with mounted ground-working appliance 16 for reworking the soil broken up by the plough 10, the ground-working appliance 16 is suspended on a L-shaped carrier 18 pivotable between a horizontal working position and a vertical transport position. Measures are taken which allow a carrier 18 to pivot relative to the plough 10, designed as an alternating plough, over a total of 180 DEG . The arrangement can thus be used in both positions of the plough 10. <IMAGE>
Patent DE-3335209-A1 (DE)
Title: Cross-country ski with a binding for a cross-country boot
Inventor: DROBNY GUENTER
IPC: A63C9/20
Filed: 1983-09-29
Abstract: In a ski with a binding for a skiboot, a heel fastener (1) for temporarily fixing the heel (12) of the skiboot (2) is arranged opposite a device for fixing the skiboot tip, said heel fastener, after loading by the skiboot (2), engaging and fixing the heel (12) of the skiboot (2) and releasing the latter when the load is removed.   The heel fastener (1) consists of a baseplate (3) which is arranged on the ski (15) and is associated in an articulated manner with a strip (5) of material. The latter is composed of a treadplate (6) having a connecting piece (9) which projects therefrom at an angle (w), and having a holding plate (10) adjoining said connecting piece at an angle (v), continuations (7), projecting laterally from the treadplate (6), forming an axis of rotation (A) for the strip (5) of material with straps (4) projecting approximately at right angles from the baseplate (3). <IMAGE>
Patent DE-3337893-A1 (DE)
Title: System for testing a ferromagnetic pipe for faults
Inventor: LUZ HANS DIPL ING
IPC: G01N27/82
Filed: 1983-10-19
Abstract: To scan the surface of a ferromagnetic pipe (10) helically using a magnetic leakage-flux test head which can be raised from the surface, a system of two magnetic yokes (32) having U-shaped cores 934) is provided to magnetise the pipe surface longitudinally in the region in which the scanning by the magnetic leakage-flux probes (74) is to take place. <IMAGE>
Patent DE-3339109-A1 (DE)
Title: Clamping lever closure with a wire for a barrel lid
IPC: B65D45/34
Filed: 1983-10-28
Abstract: A clamping lever closure with a wire for a barrel or another packaging container consists of a lever bearing part which is attached to one end of the wire and holds a clamping lever so as to be pivotable, and of a counter-bearing part which is attached to the other end of the wire and receives a strap, which is coupled to the clamping lever, so as to be pivotable in a hinge pin, the lever bearing part and the counter-bearing part each having a U-shaped profile with side pieces located opposite one another with a spacing corresponding approximately to the thickness of the wire, the back of which profile is shaped to correspond to the curvature of the circumference of the barrel lid and lies in a receiving groove, and the wire running directly above the back inside the receiving groove. The technical problem of the invention is to arrange a spring for tensioning in such a way that the embedding of the clamping lever closure in the receiving groove is not impaired. The side pieces (22) of the counter-bearing part (16) form a wide shell (19), and a helical tension spring (23) which lies in the shell (19) is inserted between the hinge pin (21, 26) on the counter-bearing part and at the end of the strap. <IMAGE>
Patent DE-3340494-A1 (DE)
Title: Current-compensated annular core choke - incorporates magnetic by=pass of ferrite material inside core with air gap to increase stray inductance
Inventor: VOGL MATTHIAS
IPC: H01F37/00
Filed: 1983-11-09
Abstract: The choke- with a ring-shaped core (1) made of highly permeable material such as ferrite- has two windings (2), opposite each other. The stray inductance is affected by a spoke shaped magnetic by-pass for the lines of force inside the core. This by-pass can be made of ferrite, having suitable magnetic properties.  It may be made an iron powder material. The by-pass can extend across the centre, with one or two air gaps separating it from the inside of the ring.  The damping zone for low frequencies can be increased by the use of X capacitors. ADVANTAGE - High stray inductivity and reduced symmetrical distortion without altering the impedance of the windings.
Patent DE-3346899-A1 (DE)
Title: Device for exchanging data between a vehicle and a fixed station
Inventor: AUKSUTAT GUENTER DIPL ING
IPC: B61L25/02
Filed: 1983-12-21
Abstract: In a device for uninterrupted exchange of data between a vehicle with a fixed route and a fixed station, in which a line conductor with intersection points serving to locate the vehicle is laid along the route and in which the vehicle has antennas (frame antennas, ferrite antennas) which are inductively coupled to the line conductor, and the data are transmitted by means of AC voltage signals, in particular modulated RF signals, the object is to avoid complicated adjustment in conventionally used phase rotation circuits with a following summing component and, simultaneously, in particular for the use of frame antennas, to avoid the need for a large amount of space in the vehicle. To achieve this, a coil-shaped line arrangement is inserted in one of the line conductors at the intersection points, in such a way that the axis of the resulting coil lies parallel with the route, that the vehicle is equipped with two antennas positioned closely adjacent to one another which are disposed in such a way that the first is coupled to the line conductor outside the intersection points and the second, on passing over an intersection point, is coupled with the coil which is located there, that, for signal reception in the vehicle, the signal received by one antenna is phase-shifted through +45 DEG  electrical, while the signal received by the other antenna is phase-shifted through -45 DEG  electrical and the signals thus obtained are added together, and that, for signal transmission from the vehicle, ... Original abstract incomplete. <IMAGE>
Patent DE-3402761-A1 (DE)
Inventor: HUETTER ODO DR ING
IPC: B65G27/08
Filed: 1984-01-27
Abstract: 1. Vibrating conveyor having an elongate conveyor through (10) and a base body (12), which has mass and is disposed thereunder and which can be set up on a support so as to be isolated from vibration and to which at least two springs (11) which are displaced relative to one another in the conveying direction are secured, which springs hold and guide in a freely supporting manner the conveyor through (10), which is provided with two side walls (40) directed towards the base body, and further having a magnetic drive (14), the coil former (15) of which is secured to the base body (12) and the armature (16) of which is secured to the conveyor through (10) in such manner that the magnetic force acts at least approximately in the conveying direction on the conveyor through, characterized in that the side walls (40) of the conveyor through (10), engaging over the base body (12), are drawn down at least as far as the horizontal centre-of-gravity plane (E) of the latter, and in that the magnetic drive (14) is disposed below and end section of the conveyor through (10) and its armature (16) transmits the magnetic attraction force to an adjacent end surface of the conveyor through (10).
Patent DE-3404216-A1 (DE)
Title: Matrix ring magnetic separator
Inventor: KUKUCK KARL-HEINZ
IPC: B03C1/03
Filed: 1984-02-07
Abstract: The invention relates to a matrix ring magnetic separator in which the induction bodies are formed by radial, spaced-apart bars which are arranged in several rows one beneath the other such that the bars provided in adjacent rows are mutually offset. A magnetic separator of this kind can also work in dry operation and is distinguished by reliable operation (without the danger of bridge formation) and the possibility of easy cleaning.
Patent DE-3404998-A1 (DE)
Title: Toasting tongs
IPC: A47J37/08
Filed: 1984-02-11
Abstract: Published without abstract.
Patent DE-3411574-A1 (DE)
Inventor: KLEIN CHRISTIAN DR
IPC: C07D265/36
Filed: 1984-03-29
Abstract: The glycosides of resorufin derivatives have the general formulae Ia and Ib <IMAGE> in which R<1> is hydrogen, R<2>, R<3> and R<5>, which can be identical or different, are hydrogen, halogen or a lower alkyl group, R<4> and R<6>, which can be identical or different, are hydrogen, halogen, a cyano, lower alkyl, lower alkoxy, carboxyl, lower alkoxycarbonyl, carboxy-lower alkyl, lower alkoxycarbonyl-lower alkyl or an optionally mono- or disubstituted carboxamide group or the group  -COO-(CH2CH2O)n-R<7> in which R<7> is hydrogen or a lower alkyl group and n is an integer from 1 to 4, where R<6> can additionally be a sulphonyl or nitro group, and Y is a nitrogen or the group NO. These compounds are particularly suitable as chromogenic and fluorogenic substrates for determining the activity of corresponding glycosidases or oligosaccharide-cleaving enzymes. The glycosides are obtained by reacting resorufin derivatives with a mono- or oligosaccharide or a 1-halogeno derivative thereof, whose hydroxyl groups are substituted by customary protective groups. This initially results in per-O-substituted glycosides, which can be converted into the claimed compounds by elimination of the protective groups. The glycosides are used as chromogenic and fluorogenic substrates in diagnostic agents for detecting glycosidases or oligosaccharide-cleaving enzymes. The resorufin derivatives employed as starting materials in the preparation of the compounds are also claimed.
Patent DE-3412663-A1 (DE)
Inventor: ALBERS HANS-ERHARD DIPL ING
IPC: G07F7/08
Filed: 1984-04-04
Abstract: 1. Chip card system with chip cards for use as a money substitute, as an identity card or as a storage medium, with which a single chip card (1) can be used successfully for different application cases, with which different areas of money (11 , 12 ... 1n ), integrated into the chip, or of a function unit are provided for the different application cases, a selection circuit (121) being provided in the chip for the selection of the different areas in the chip, for which circuit a certain selection procedure is fixed, by which it can be ensured that the areas relevant for the application case concerned and only these are assigned, that a processor (12), by which the processes necessary for the different specific application cases are executed, is provided for specific application cases as a function unit, this multifunctional chip card (1) being suitable to act together with an input/output device (2), in which a combination control element permitting activation is provided and into which the chip card (1) can be inserted and which additionally contains a power source for mobile use, and the input/output device (2) being connectable to a wireless transmitting/receiving device (3) for communication with a stationary device, characterized in that the processor (2) is fitted in the chip in a way known per se, in that this stationary device for its part contains a device which, if a plurality of mobile devices are present in the local area concerned, controls a multiple access in a way known per se and, if appropriate, according to a priority list, and in that the input/output device (2) remains in the ready-to-receive state for specific applications and, in response to the reception of a signal from the stationary station, with which the latter transmits an item of application information, automatically sends the required message.
Patent DE-3416289-A1 (DE)
Title: Method for processing the residue from the reaction of an alkylene oxide with excess water, alkanol or alkanediol
Inventor: SCHWENK ULRICH DR
IPC: C07C41/16
Filed: 1984-05-03
Abstract: A method is described for processing the residue as obtained from the reaction of an alkylene oxide with water, alkanol or alkanediol, after most of the unreacted starting materials and reaction products have been removed. The residue is treated with alkali metal hydroxide, and the mixture is reacted with alkyl chloride or alkyl bromide. Even more highly viscous residues can be processed in this manner, giving valuable substances. What remains after the process is only a small amount of non-utilisable substance which is virtually free from alkali and which can be eliminated readily.
Patent DE-3418390-A1 (DE)
Title: Thermostatic valve
Inventor: CLIFF THOMAS CHARLES
IPC: G05D23/12
Filed: 1984-05-17
Abstract: A thermostatic valve (11) controls an air inlet to a boiler which is operated using solid fuels, in which boiler uncontrolled pressure changes occur as a result of wind conditions at its exhaust gas outlet. A lever (14) is supported by a temperature adjusting device (17) such that it can pivot, and can pivot in order to open or close the thermostatic valve (11), by means of a temperature sensing device (20, 21, 22) which operates in the closed system. The closed system has a capsule (22) whose size can be increased and which has adequate stiffness to withstand the uncontrolled pressure changes. In order to compensate for the reduction in the expansion movement which would otherwise be caused in consequence, the capsule (22) is designed with a diameter between 2 and 4 cm. In the case of other embodiments of the thermostatic valve, fail-safe precautions are taken. <IMAGE>
Patent DE-3425610-A1 (DE)
Title: Apparatus for the exchangeable fixing of a power-actuated workpiece holder on the spindle of a machine tool
Inventor: PESCH KARL
IPC: B23Q3/12
Filed: 1984-07-12
Abstract: For the exchangeable fixing of a power-actuated workpiece holder (1) on the spindle of a machine tool use is made of a clamping head (2) secured on the spindle. Guided on the body (2.1) of the clamping head are locking elements (6) which are adjustable for the exchange of the workpiece holder and engage in lock receivers (7) on the workpiece holder (1). Centring surfaces form a centring set (8) which aligns the two bodies (1.1, 2.1) relative to one another. The locking elements (6) and lock receivers (7) rest against one another in clamping surfaces (9) which are inclined in the direction of adjustment of the locking elements (6) and, when the latter are adjusted into the locking condition, pull the workpiece holder (1) into the centring seat. Provided on the body (1.1) of the workpiece holder are studs (10) and provided in the body (2.1) of the clamping head are stud receivers (11) into which the studs (10) can be inserted with their axis parallel to the axis (0-0) of the spindle. The locking elements (6) are guided transversely to the stud receivers (11). Depending on their position, the locking elements (6) engage in the lock receivers (7) extending transversely to the stud axis at the studs (10) or allow the studs (10) axially free passage into the stud receivers (11). <IMAGE>
Patent DE-3426001-A1 (DE)
Title: Device for radio interference suppression of overhead line suspension insulator fittings
Inventor: HEISS WERNER
IPC: H02G7/05
Filed: 1984-07-14
Abstract: The device for radio interference suppression of overhead line suspension insulator fittings whose joints in each case have a bolt (214) passing through the parts (9, 210, 211) which are to be interconnected comprises at least one electrically conductive, resilient component (219) which contacts two of the parts (9, 210) disposed next to each other in the vicinity of their zone surrounding the passage aperture for the bolt (214). This component (219) has a design which has virtually no effect on the rotational mobility in relation to one another of the parts (9, 210, 211) to be contacted and has at least one longitudinally extended flexible element (119''). <IMAGE>
Patent DE-3428150-A1 (DE)
Title: Pulsed sieve-plate column
Inventor: STEIN GUENTHER DIPL ING
IPC: B01D3/22
Filed: 1984-07-31
Abstract: In the pulsed sieve-plate column having a pulsing piston (17) arranged at the top end of a pulsing pipe (14) running in parallel to the column-shaped column vessel (10), the pulsing piston (17) and correspondingly the top end section (16) of the pulsing pipe (16) guiding it are designed to have a small diameter relative to the column vessel (10), while immediately beneath the end region (16) guiding the pulsing piston (17), the pulsing pipe (14) is expanded to a larger diameter. <IMAGE>
Patent DE-3430864-A1 (DE)
Title: Curved panelling part, especially for a vehicle body
Inventor: MUELLER HELMUT EDGAR
IPC: B60R13/02
Filed: 1984-08-22
Abstract: The invention relates to a curved panelling part 2, especially for a vehicle body 4, with a recess 1, in which a slide cover 3 is displaceably arranged, in which cover 3 a press button 17 is arranged. In order to guide the sliding cover 3 displaceably in the panelling part 2 as simply as possible without an additional guiding part, the sliding cover 3 is curved in accordance with the inner contour of the panelling part 2 and on the other hand is arranged with its edge on rails 9 on the inside 18 of the panelling part 2. <IMAGE>
Patent DE-3434287-A1 (DE)
Title: Attachment and operative appliance with liftable and horizontally extendable telescopic arm and remote-controlled head movable about all axes and having optics and equipment orientated to the task
Inventor: FUEREDER GEORG
IPC: B66F11/04
Filed: 1984-09-19
Abstract: The present invention is universally usable and develops new methods of operation. It facilitates the handling of dangerous substances and work in hazardous areas through remote control and monitoring and protected accommodation of the operating personnel. It can be set up cost-effectively on vehicles and ships in a stationary, semi-mobile and mobile manner and can be operated manually or automatically. The size and equipment can be matched to the desired capacity and uses. Precise matching between all movable parts and accurate directability permit harmonic sequences of motion. The use of the appliance is directed via a graphic display based on transmitted measured values. It permits the humanization and acceleration of working sequences in various areas.