baber/WOPTO huggingface dataset:
Patent DE-3141274-A1 (DE)
Title: Infinitely variable speed transmission for vehicles
Inventor: PICKARD JUERGEN
IPC: B60K17/08
Filed: 1981-10-17
Abstract: In the case of an infinitely variable speed transmission for vehicles, two main shafts, one of which can be driven by an internal combustion engine and the other can be coupled to the vehicle wheels, lie coaxially with one of two parallel main axles. In a torque transmission train connecting the main shafts an infinitely variable transmission for transmitting a rotary movement by continuously flexible traction mechanism, a planet wheel reversing gear and a spur gear axial offset mechanism are inserted, which in relation to the torque flow lie in series relative to one another. In order to shorten the overall length of the transmission in relation to the main axles, a spur gear lying concentrically to a main axle meshes directly with a spur gear lying concentrically to the other main axle, of which the spur gear lying together with the reversing gear concentrically to a main axle is connected in a rotationally fixed manner to a transmission element of the reversing gear and to a gear shift clutch engagable in reverse gear, which clutch on the other side is connected to a second transmission element of the reversing gear. A reaction transmission element of the reversing gear bringing these two transmission elements into opposing directions of rotation due to stalling is connected to a gear shift brake engagable in the forwards gear range.
Patent DE-3143136-A1 (DE)
Title: Devices for data entry in communication system components
Inventor: SCHWANITZ MANFRED DIPL ING
IPC: G11C16/22
Filed: 1981-10-29
Abstract: Published without abstract.
Patent DE-3149651-A1 (DE)
Title: Supplementary interference protection for a piezoelectric switch with CMOS circuit
Inventor: MAGORI VALENTIN DIPL PHYS
IPC: H03K17/16
Filed: 1981-12-15
Abstract: An additional interference protection for a piezoelectric switch (1) with CMOS circuit according to Patent P 2935837 by connecting an additional capacitor (100) in parallel with the inverter of the switched-mode amplifier which is connected to the switching transistor (6). <IMAGE>
Patent DE-3150460-A1 (DE)
Title: Gas-sealing joint between a coke oven door and a coke oven chamber
Inventor: FINGERHUT WERNER
IPC: C10B25/16
Filed: 1981-12-19
Abstract: In a gas-sealing joint between a coke oven door and a coke oven chamber by means of a belt sealing frame surrounding the coke oven door and connected to the latter via a gas-tight L-shaped resilient membrane frame, the resilient membrane frame is arranged, to ensure gas tightness even in the case of an uneven coke oven chamber sealing surface, in such a way that it reaches, at a distance, around the allround door edge facing the coke oven chamber and is fixed with its profile flange via a spacer frame to the door surface facing the coke oven chamber, while the belt sealing frame joined gas-tight to the other profile flange can be forced against the sealing surface by an additional adjustable helical spring arrangement.
Patent DE-3151436-A1 (DE)
Title: Television camera
Inventor: IRRGANG HENK
IPC: H04N5/225
Filed: 1981-12-24
Abstract: To extend the control range of television cameras, it is proposed to arrange a phototropic filter in the beam path of the television camera. This can be arranged either on the lens or on the front plate of a protective camera housing.
Patent DE-3202339-A1 (DE)
Inventor: SCHMITT WALTER ING GRAD
IPC: G01D5/244
Filed: 1982-01-26
Abstract: A digital electronic length or angle measuring instrument includes an arrangement for error correction. A signal generator delivers periodic analog reference signals RS1, RS2 which are compared in a comparator with scanning signals S1, S2 generated by the measuring instrument. In accordance with the result of the comparison in the comparator, the reference signals RS1, RS2 are altered as a function of correction data for symmetry, amplitude ratio, phase angle, and signal form, which correction data are determined in a correction component and are supplied to setting members included in the signal generator. In this way, an in dependence on the correction data, improved reference signals are generated which then form a basis for the next comparison in the comparator.
Patent DE-3204507-A1 (DE)
Title: Radio-frequency transmission system
Inventor: DOMBROWSKY WOLF
IPC: H04N7/18
Filed: 1982-02-10
Abstract: A radio-frequency transmission system is proposed which is provided for a multiplicity of channels, of which only a proportion need to transmit information simultaneously. A central control station, a central reception station and a series of peripheral devices (33) connected to the central stations are associated with the transmission system. According to the invention, a control channel independent of the other channels is disposed between the central control station and the peripheral devices. The control channel begins in the central control station and ends in different IF-RF converters (44) of the peripheral devices which can be adjusted to different carrier frequencies. A central control station computer determines the optimum frequency position for the channels selected for simultaneous transmission of information from different information sources (55). <IMAGE>
Patent DE-3209264-A1 (DE)
Inventor: POST HANS DIPL PHYS DR
IPC: G01N24/08
Filed: 1982-03-13
Abstract: In NMR tomography, the nuclear spins of a selected type present in a selected area of a body are selectively excited by applying first a selection gradient field and exciting thereafter the nuclear spins by a HF signal which initially effects a rotation of the nuclear spins situated in a selected plane by an angle  alpha  of less than 90 DEG , then a rotation of all selected nuclear spins by 90 DEG  and finally again a rotation of the nuclear spins contained in the selected plane by an angle of 90 DEG - alpha . As a result thereof, the nuclear spins contained in the selected area have resumed at the end of this excitation their original orientation determined by a homogeneous magnetic field, while nuclear spins located outside this area lie within a plane extending almost vertically thereto. Thereafter, a measuring gradient field may be switched on without disturbing the orientation of the nuclear spins contained in the selected area. With the measuring gradient field switched on, the nuclear spins are now excited by a 90 DEG  pulse or usual pulse sequences to produce an induction signal. The measuring processes are carried out in pairs, with the selection gradient field applied, using different excitation signals so that the nuclear spins contained in the selected area are alternately oppositely directed which means that the induction signals generated by them are phase-shifted by 180 DEG , whereas the nuclear spins situated outside the selected area are shifted in the same sense so that they supply identical signals, if any.
Patent DE-3214867-A1 (DE)
Title: Ratchet with direction locking device arranged in the operating lever
IPC: B25B23/00
Filed: 1982-04-22
Abstract: The invention relates to a ratchet with a direction locking device arranged in the operating lever and from which emerges a tool holder which is designed as a polygon and onto which the tool can be fitted in a positive coupling, and on which locking device locking members are arranged for securing the fitting position, which locking members are assigned a securing pin for blocking the inward movement of the locking members into their release position, and proposes, in order to optimise the structural shape, that the securing pin (18) is spring-mounted axially freely displaceably and in the blocking direction and its spring loading spreads the locking members (16) via oblique faces, the angle of inclination of which lies beyond the self-locking region, so that the removal of the tool always requires intentional operation of the securing pin. <IMAGE>
Patent DE-3215441-A1 (DE)
Title: Electronic switching device preferably operating contactlessly
Inventor: CZECH INGO
IPC: H03K17/95
Filed: 1982-04-24
Abstract: In this switching device, having an inductive presence indicator, for example an inductively influenced oscillator, and an electronic switch which can be controlled by the presence indicator, for example a transistor, thyristor or triac, in which an indicator coil (1) having a unilaterally open pot-shaped ferrite core (2), a winding (3) inserted into the ferrite core (2) and a coil former (4) carrying the winding (3) for the inductive influencing and the indicator coil (1) can be influenced from the open side (5) of the ferrite core (2), the so-called transverse field losses can be considerably reduced and large operating distances can be achieved in that the winding (3) and the coil former (4) are lowered inside the pot-shaped ferrite core (2), that is to say is or are arranged without or with only a very short distance from the bottom and with a distinct distance from the open side (5) of the pot-shaped ferrite core (2). <IMAGE>
Patent DE-3217624-A1 (DE)
Title: Telescopic strut for a drum-type washing machine
Inventor: BAUER FRITZ
IPC: F16F15/02
Filed: 1982-05-11
Abstract: A telescopic strut (4) for a vibrational support for a drum-type washing machine with a spin mode, which possesses a tub receiving a drum and supported relative to a baseplate, has a guide tube (8) and an inner tube (9) telescopically displaceable relative to this counter to the force of a prestressed spring (27) and is elastically connected at its respective ends to the tub and to the baseplate by means of two respective prestressed rubber rings (34, 35; 34', 35'). At the same time, a closing piece (10) having a threaded bolt (17) is provided on the guide tube (8) and a threaded bolt (17') is provided on the inner tube (9), each for receiving two rubber rings (34, 35; 34', 35'). Moreover, the closing piece (10) and the inner tube (9) consist of injection-mouldable plastic, into which the threaded bolts (17, 17') are embedded. In order, in such a telescopic strut (4), to simplify the production and assembly, the threaded bolts (17, 17') are each equipped with a spacer sleeve (12, 12') which is made in one piece with the closing piece (10) and with the inner tube (9) respectively and the length of which corresponds to the thickness of the two respective prestressed rubber rings (34, 35; 34', 35'). <IMAGE>
Patent DE-3223536-A1 (DE)
Title: Apparatus for recovering motor vehicles
Inventor: HAGEN WOLFGANG VON DEM
IPC: B66D1/00
Filed: 1982-06-24
Abstract: The invention relates to an apparatus for recovering motor vehicles, having a tow rope. The tow rope can be attached to one or more bolts which can be screwed into the threaded holes of a wheel hub of at least one driven motor vehicle wheel, instead of wheel nuts, and around which the tow rope can be wound when the wheels are turned. The apparatus thus designed is simpler than the previously known apparatuses and, in particular, permits the self-recovery of motor vehicles, using their own engine power. The bolts used have an extended central winding part on which, preferably, laterally projecting arms or spaced annular flanges are arranged. <IMAGE>
Patent DE-3224280-A1 (DE)
Title: Process for calcining lime
Inventor: TAUBMANN HARRO J DIPL ING
IPC: C04B2/10
Filed: 1982-06-28
Abstract: Lime is an important raw material with a wide application spectrum. In third-world countries, in particular, quick lime is an important binding agent. In countries of the Third World, however, there is often a lack of fuels such as petroleum, natural gas or coal for calcining lime. As a general rule, however, organic wastes such as coconut shells, rice hulls, bagasse and others are available. According to the invention, these wastes are briquetted and then used as calcining fuel. Preferably a shaft furnace is used and it is charged with the waste briquettes mixed with the lime stone.
Patent DE-3224626-A1 (DE)
Title: Apparatus for the storage of long fibres and the formation of a mat from these
Inventor: ZIMMERMANN PAUL
IPC: D01G25/00
Filed: 1982-07-01
Abstract: A lower endless band (8) is arranged in the lower part of a supply chamber (3). Endless bands (10, 11) inclined obliquely upwards connect the rear end of the lower endless band (8) to the exit of the supply chamber (3). Arranged at this exit is a roller (20) which is equipped with teeth and which rotates in the same direction as the inclined endless bands (10, 11). The roller (20) allows only disentangled fibres to pass through, but throws fibre tufts and fibre bundles back into the supply chamber (3). A similar homogenisation then takes place once again in a mat-forming chamber (4) following the supply chamber (3). This mat-forming chamber (4) likewise contains an endless band (23) inclined obliquely upwards and a roller (25) arranged at its upper end and equipped with teeth. The disentangled fibres fall uniformly from the latter endless band (23) into a mat-forming shaft (24), from which the mat issues at the bottom. <IMAGE>
Patent DE-3227124-A1 (DE)
Title: Signal reception display device for a broadcast receiver
Inventor: TAKAGI KENICHI
IPC: H04B1/10
Filed: 1982-07-20
Abstract: Signal reception display device for a broadcast receiver in which a display device (light-emitting diode) (LED3) is illuminated and extinguished by a switch (SW) which is activated and de-activated in response to a DC voltage which is proportional to the electric field intensity of a received signal. <IMAGE>
Patent DE-3229967-A1 (DE)
Title: Damping device
Inventor: BAMER FRANZ DR ING
IPC: F02D11/08
Filed: 1982-08-12
Abstract: A damping device which serves for damping a pulsating intake-air flow in the intake pipe of an internal-combustion engine is proposed. The damping device comprises a damping flap (6) which is arranged in the intake pipe (1) of an internal-combustion engine, for example between an air-measuring device (3) and a throttle flap (4), and which is controlled by a pressure cell (13). A diaphragm (12) of the pressure cell (13) engages via an actuating rod (10) and an actuating lever (8) on the damping flap (6) and rotates the latter counter to the force of a restoring spring (9). On the one hand atmospheric pressure and on the other hand the suction-pipe pressure in the suction-pipe portion (17) between the damping flap (6) and throttle flap (4) prevails on the diaphragm (12). The pressure loss at the damping flap (6) amounts to approximately 20 mbar. Under full load and at high engine speeds, the damping flap (6) will open the suction-pipe cross-section completely. <IMAGE>
Patent DE-3230558-A1 (DE)
Title: Method for converting a movement of a mechanical element into a pulse train using a Wiegand module, consisting of a Wiegand wire and a sensor coil arranged thereon, and at least one permanent magnet element
Inventor: KUCHLMAYR THOMAS ING GRAD
IPC: G01P3/487
Filed: 1982-08-17
Abstract: In order to detect the movement of a mechanical element, in particular rotary movements, it is known to call upon a Wiegand module (w), which makes use of the Wiegand effect with asymmetric excitation and consists of a Wiegand wire (d) and a sensor coil (s) arranged thereupon, the Wiegand wire (d) being exposed by the movement of a permanent magnet to an alternating magnetic field. However, in this case there is the risk that the envelope zone magnetisation is attenuated or that magnetic interference fields alter the original magnetisation of the envelope zone (m) of the Wiegand wire (d). The method according to the invention excludes undesired de- or remagnetisations of the envelope zone (m) by arranging that after the occurrence of a relatively large (i2) one of the voltage pulses (i1, i2) occurring in the case of asymmetric excitation in the sensor coil the latter is subjected to a short conservation current pulse which generates for the Wiegand wire (d) a magnetic field strength which is greater than the reversing field strength of the envelope zone (m) of the Wiegand wire (d) and is orientated in the original envelope zone magnetisation direction. <IMAGE>
Patent DE-3233936-A1 (DE)
Title: Device for measuring the level of liquid gas in a cylindrical liquid gas tank of a motor vehicle
Inventor: DOLDERER ERICH A
IPC: G01F23/38
Filed: 1982-09-13
Abstract: In a cylindrical liquid gas tank (1) of a motor vehicle a cylindrical float (18) which can be swivelled around an axis of rotation as a function of level is mounted at one end of a lever (17). The movement of the float affects a mechanical/electrical transducer. The axis of rotation coincides with the longitudinal axis of the tank (1) and the longitudinal axis of the float (18) is parallel to the longitudinal axis of the tank (1). The float (18) is situated in the immediate vicinity of the wall (10) of the tank. The device according to the invention makes possible a linear level measurement in cylindrical tanks virtually until the tank is completely empty. <IMAGE>
Patent DE-3234092-A1 (DE)
Title: Circuit arrangement for the overvoltage protection of a monolithically integrated bipolar semiconductor circuit
Inventor: RUDOLF HANS-WERNER DR
IPC: H01L27/02
Filed: 1982-09-14
Abstract: A bias voltage UH is applied to the p<-> substrate of the semiconductor circuit with respect to the one pole of the supply voltage source in such a manner that the substrate diodes formed between the substrate and the electrode zones E, B remain polarised in the blocking direction despite overvoltage peaks, because the diodes of a protection circuit connected thereto become conductive. <IMAGE>
Patent DE-3234657-A1 (DE)
Title: Field chopper
Inventor: BRUER DIRK
IPC: A01F29/12
Filed: 1982-09-18
Abstract: The present invention relates to a field chopper which has, in addition to a chopping drum and an impeller, a further fine-comminution device. In order at the same time to achieve a compact design, the fine-comminution device and the throwshovels are arranged in a common transverse conveyor which can be loaded circumferentially with chopped material and from which the finely comminuted material can likewise be thrown out circumferentially. The material transport takes place by the interaction of the impact and friction strips fastened to the rotor and the friction and guide strips provided on the circumference of the housing of the transverse conveyor. The transverse conveyor is held displaceably in the axial direction and has two inlet orifices, so that, depending on the position of the transverse conveyor, the chopped material can be fed to the throwshovel directly or indirectly, in particular with the fine-comminution device being interposed.
Patent DE-3235668-A1 (DE)
Title: Parking-time detection device with a parking permission display for vehicles
Inventor: MEYER HANS RUDOLF
IPC: G07C1/30
Filed: 1982-09-27
Abstract: Hitherto conventional parking meters working mechanically burden the town and local administrations with high installation and maintenance costs and cannot prevent parking for long periods in short-term parking zones. By means of the parking-time detection device with a parking permission display for vehicles, which operates without the use of coins or tokens, is issued according to the particular vehicle and is equipped with a long-period parking interlock circuit preventing parking for long periods, only the parking time actually used is debited and subtracted from a predetermined total parking time allowed by the fee to be paid when the device is issued.
Patent DE-3240657-A1 (DE)
Title: Fibre-cutting machine
Inventor: BUROW BURGHARD ING GRAD
IPC: D01G1/10
Filed: 1982-11-04
Abstract: For a fibre-cutting machine, on the winding wheel (1) of which a spinning tow is wound in a winding region (4) and is cut on knives (5) to give spinning fibres of specific length by means of the cutting forces generated by a feed ring (6), a mechanical overload caused by a build-up of the plies of the spinning tow as a result of a wear of the knives (5) is prevented in that the axle (10) of the feed ring (6) is connected in an articulated manner to the fixed rotary axle (8) of the winding wheel (1) in the winding region (4). As a result, the axle (10) of the feed ring (6) can be pivoted back into a neutral position (18), where feed forces are no longer generated. A switch (13) actuated thereby can stop the drive motor (2) for the winding wheel (1). <IMAGE>
Patent DE-3242237-A1 (DE)
Title: Device for optional thermal insulation of buildings, in particular building openings
Inventor: HERZOG THOMAS PROF DR
IPC: E06B9/386
Filed: 1982-11-15
Abstract: Device for optional thermal insulation of buildings, in particular building openings, consisting of adjustable lamellar elements, which are not connected to each other in their contiguous position, the individual lamellar element consisting of a pair of lamellae (14, 14a) which in their contiguous position constitute a hollow body (15) and, in a certain position of the lamellar element, the hollow bodies taken together constituting a wall. <IMAGE>
Patent DE-3309115-A1 (DE)
Title: Housing for typewriters and similar machines
Inventor: DUDDEY WERNER
IPC: B41J29/13
Filed: 1983-03-15
Abstract: To cover typewriters or similar machines in an apparatus line with different dimensions, a housing is provided which is composed of housing parts and is formed by a lower part (1), an upper part (2), a rear part (3) and a front part (4). The housing parts are designed in such a way that, by exchanging individual housing parts, housings of different volume are provided. <IMAGE>
Patent DE-3311874-A1 (DE)
Title: Method and device for detecting a small-amplitude interference quantity
Inventor: LEISCH MANFRED DIPL ING
IPC: B60L9/00
Filed: 1983-03-31
Abstract: A useful quantity (i-e), for example the input current of a direct-current controller (ST), pulsed with a certain useful frequency (fp), also contains, in addition to the useful frequency and its harmonics, other interference quantities caused by the load (inverter with asynchronous machines ASM), which can lead to disturbances in other loads, for example by reaction on the supply network UDC). This influence of the interference quantity is suppressed by the interference quantity contained in the measurement value (i-e) being isolated from the useful-frequency components and being connected to the control input of the actuator for interference-quantity compensation. A delay section (1), to which the measurement value (i-e) is applied and the input and output quantity of which is connected to a summation section (2), is used for the isolation. The summation signal does not contain the useful frequency and its odd harmonics. In the same manner, the second harmonic can also be suppressed by a subsequent second delay section (3). <IMAGE>
Patent DE-3312945-A1 (DE)
Title: Hair-cutting scissors
Inventor: STABENAU ERICH
IPC: B26B13/24
Filed: 1983-04-11
Abstract: In the case of a pair of hair-cutting scissors, a blade (1) is provided with a comb part (11), the prongs (12) of the comb part (11) extending over the smooth cutting edge (5) of the blade (1). This ensures that the prongs (12) of the comb part (11) engage with the hair first, so that the latter is held in position between the prongs (12). As the scissors are closed further, the hair held between the prongs (12) is then continuously cut off. <IMAGE>