baber/WOPTO huggingface dataset:
Patent DE-3031267-A1 (DE)
Title: Reducing X=ray image graininess - by lowering image-forming sharpness of layer near rare earth phosphor-contg. intensifying screen
Inventor: DEGENHARDT HEINZ DIPL CHEM DR
IPC: G21K4/00
Filed: 1980-08-19
Abstract: The graininess of X-ray images, produced with intensifying screens contg. a rare earth phosphorescent cpd-contg. phosphor, is reduced by lowering the image-forming sharpness of the layer near phosphor surface. In one embodiment, the phosphor (2) surface is covered with a densely packed thin pigment layer (4). The pigment particles have higher light-refraction and light-transmittance than the rare earth phosphor crystals and grain-size max. 5-6 nm. In another embodiment, the phosphor surface layer is dyed, dye absorption being 2-5 times higher than that of the phosphor. The process is partic. suitable for X-ray intensifying screens placed near X-ray film on taking X-ray images.
Patent DE-3040236-A1 (DE)
Title: Extraction machine for extruded profiles - has second extraction unit independent of first, with one guide carriage and drawing head
Inventor: ELHAUS FRIEDRICH WILHELM DIPL
IPC: B21C35/02
Filed: 1980-10-24
Abstract: The appliance has a first extraction unit, with a guide carriage, which moves on tracks and has a drawing head, to clamp the profiles to be extracted. A second extraction unit (6) is operated independently of the first unit (4). The guide carriage (12) of the second unit moves on its own rails (13) past the first unit. The drawing heads (5,7) of both units may be pivoted out of the drawing track (3) independent of each other. When the heads are in non-operative position, the centre of the track coincides with the centre of the head concerned.
Patent DE-3040271-A1 (DE)
Title: Connection of telephone instruments for conference link - uses send and receive amplifiers with buffering to prevent feedback between microphone and earpiece
Inventor: LUEHMANN HANS-GUENTHER DIPL IN
IPC: H04M3/56
Filed: 1980-10-23
Abstract: The circuit is for use in private branch exchanges or private telephone installations. The instruments on which the conference facility is available are connected together by special interconnectors. Each instrument is connected through a send and receive amplifier. Each receiver amplifier is connected through an ohmic resistor to one input of the transmit amplifier. When an instrument is not in use its transmit amplifier is loaded with a ballast resistor. The transmit amplifiers are connected to the interconnectors through damping resistors such that the receive and transmit circuits of an extension are not connected together. One of the instruments can be, and pref. is, available for connection to the public system. The private instruments are powered by constant current sources. The resistor values and connections are chosen to give the required damping between internal instruments and between them and the line connected instrument.
Patent DE-3042527-A1 (DE)
Title: Stator with permanent magents for coreless armature - with inner yoke ring located by synthetic resin injection moulding
Inventor: WOLF PETER DIPL ING
IPC: H02K23/58
Filed: 1980-11-11
Abstract: The stator comprises an outer yoke cylinder (3), and an inner cylinder (2) which are joined at one end by a magnetic plate (1) to close the yoke flux path. One ring, typically the outer (3), carries permanent magnet poles (5), and the coreless armature (6) rotates in the air gap between poles and the inner ring. The inner ring (2) is located and held against the plate (1) closing the magnetic path by a synthetic resin injection moulding (10). Using this technique accurate dimensions and dimensional stability can be achieved, and the bore of the moulding can be used as the location for bearings (13,14) carrying the shaft (8) without requiring any machining.
Patent DE-3045521-A1 (DE)
Title: Warhead for releasing multiple charges - has each stack of charges swung outwards by spring after ejection of nose cone
Inventor: SCHOEFFL RAINER
IPC: F42B12/58
Filed: 1980-12-03
Abstract: The warhead for delivering charges within a target area is rocket propelled. The stacked charges (19) form a cylinder around a central tube. When the nose cone (1) has been ejected by an ignition charge (11) housed inside it, all the charges are released, and each is carried to earth by an attached parachute (25), folded up inside. When the nose cone has been ejected, a sleeve (2) around the outside is also removed. Each stack of charges (16) is then tilted outwards by a spring (18) at the front of the stack so that each charge is released.
Patent DE-3048603-A1 (DE)
Title: Prestressed lid for pressure vessel opening - with concave outer face, is cellular-to reduce wt.
Inventor: MITTERBACHER PAUL DIPL ING
IPC: G21C13/073
Filed: 1980-12-23
Abstract: A lid or closure for pressurised cavities, esp. pods equipped with a cylindrical liner or penetration in pressure vessels for nuclear reactors, is inserted into the mouth of the cavity and is prestressed by prestressing tendons. The lid rests on a step or shoulder of the opening, is circular in plan and is of cast iron; the outer (upper) face of the lid is concave and the inner (lower) face is flat. Upward thrust on the lid due to internal pressure is transmitted from its edge, through bearing elements to a key or step in the wall of the vessel defining the opening. The lid itself contains cavities sepd. by ribs. Beneath the lid a circular, flat thermal insulating system is provided. Used for closing lined pods, penetrations and similar openings in a nuclear reactor pressure vessel. All the compressive forces arising from the internal pressure are transmitted into the reactor pressure vessel: the lid itself is comparatively light due to its cellular structure and provides good radiation shielding.
Patent DE-3100911-A1 (DE)
Inventor: LANGE ARNO DIPL CHEM DR
IPC: A01N47/34
Filed: 1981-01-14
Abstract: N-Benzoyl-N'-phenylureas of the formula    <IMAGE>  (I)  where X, Y, Z and R have the meanings given in the description, are used for insect control.
Patent DE-3101907-A1 (DE)
Title: Accumulator-loading valve
Inventor: BUDECKER LUDWIG
IPC: F15B1/027
Filed: 1981-01-22
Abstract: The accumulator-loading valve (1) has a pressure connection (4), a first and second consumer connection and a valve arrangement by means of which the pressure connection (4) can be connected via a choke point (11) to the second consumer connection (14) below a certain pressure in an accumulator (2) and to the first consumer connection (9a) above a certain accumulator pressure, the valve arrangement having a stop valve (8) which can be controlled by the control pressure and by means of which the connection from the pressure connection (4) to the first consumer connection (9a) can be shut off below a certain accumulator pressure and the valve passage of which can be shut off when the centre of the second consumer (15) is open. In order to be able to set the pressure level and the useful flow quantity differently for both consumer circuits or set them independently of the delivery quantity of the pressure-medium source (6), provision is made for a bypass line (30) to branch off from the connection between the pressure connection (4) and the first consumer connection (9a) downstream of the stop valve (8) and upstream of the first consumer connection (9a), which bypass line (30) leads via a further connection (41) to a pressureless tank (48) and in which a flow-regulating piston (32) is arranged. <IMAGE>
Patent DE-3102738-A1 (DE)
Title: Process for eliminating deposits in sewer ducts
Inventor: KUEHL GUENTHER
IPC: E03F9/00
Filed: 1981-01-28
Abstract: In order to eliminate sludge-type deposits in sewer ducts, in which only a relatively low flow rate prevails, the cross-section provided for the free-flowing material is, according to the invention, narrowed by an inflatable hose, with the result that the flow rate increased by the hose, which is to be regarded as displacement body, can be used to transport the sludge to a neighbouring manhole which is partitioned off, preferably downstream, and emptied by means of a sludge pump. <IMAGE>
Patent DE-3103069-A1 (DE)
Inventor: RENTZEA COSTIN DIPL ING DR
IPC: C07D453/02
Filed: 1981-01-30
Abstract: Dibenzofuran derivatives of the formula   <IMAGE>   where R1, R2, R3, X, A, Y, m, n, p and q have the meanings given in the description, and their use for controlling fungi.
Patent DE-3103699-A1 (DE)
Title: Method for perfect control of a tungsten inert gas AC arc by means of a thyristor-inductor series circuit connected in reverse parallel
Inventor: ALBERT WOLFGANG ING GRAD
IPC: B23K9/073
Filed: 1981-02-04
Abstract: Published without abstract.
Patent DE-3111131-A1 (DE)
Title: Operating method for a vehicle navigation device
Inventor: ROGGE JOACHIM DR ING
IPC: G01C21/12
Filed: 1981-03-21
Abstract: This navigation device contains a displacement sensor which supplies signals corresponding to the vehicle movement, a gyroscope arrangement which continuously supplies signals corresponding to the alignment of the vehicle with respect to the reference direction, and an analysing circuit which determines position signals from these signals. So that the drift of the gyroscope arrangement when the vehicle is stopped is at least largely eliminated, the delivery of signals from the gyroscope arrangement to the evaluating circuit is suppressed when the vehicle is stopped. However, the signals are supplied to two memories which are in each case cleared after a time T but at an interval of T/2 with respect to one another; T/2 being in each case somewhat greater than the maximum possible period which can occur between the beginning of travel and the occurrence of the first signal of the displacement sensor. If the first displacement sensor signal occurs again, the content of the memory which has not been cleared for more than T/2 is used for the sign-correct correction of the value of the alignment of the vehicle with respect to the reference direction and, at the same time, the suppression of the gyroscope signals to the analysing circuit is cancelled. <IMAGE>
Patent DE-3113526-A1 (DE)
Title: Method and device for producing (generating) static electricity
Inventor: KUROSHIMA HIROSHI
IPC: B05D1/04
Filed: 1981-03-31
Abstract: The invention relates to a method and to a device for producing an electrostatic field, an anodic-oxidised film with a high electrical resistance being applied on an electrostatic electrode. If a high-voltage direct current, containing a high-frequency component, is applied to the electrode, this component resonates with the RC circuit in the film of the electrode. <IMAGE>
Patent DE-3116975-A1 (DE)
Title: Measuring method for the angular position  theta  of an alternating rotatable magnetic field
Inventor: KLOTZ HERMANN DIPL ING
IPC: H03M1/00
Filed: 1981-04-29
Abstract: The invention relates to a measuring method for the angular position theta  of an alternating rotatable magnetic field, evaluating the phase difference, corresponding to this angular position  theta , between two alternating voltages of the same frequency f0, the phase of which can be moved in opposite directions. These alternating voltages are obtained with the aid of an RC bridge circuit from two voltages of frequency f0, the amplitudes of which are proportional to the sine or cosine, respectively, of the angle  theta . The phase difference is measured by counting out time intervals, which depend on the phase difference, by means of counting pulses. According to the invention, the bridge circuit polarity is reversed and from the output voltages of the bridge circuit and a reference voltage of the same frequency, time intervals are derived which are counted out. Within the time in which the bridge is switched on in one polarity, two time intervals are derived in the same manner, the spacing being DELTA t = 1/2 fB and fB being the operating frequency (mains frequency) of the measuring arrangement. These time intervals are counted out within two successive periods with different bridge polarisation, the counting results are added within the period of one polarisation and the sums are subtracted from one another. The difference is a measure of the angle  theta .
Patent DE-3119066-A1 (DE)
Title: "Developing machine"
Inventor: RIEKKINEN MARTTI OLAVI
IPC: G03D3/10
Filed: 1981-05-13
Abstract: Developing machine, especially for developing films, having development troughs, hangers for films, transport devices to transport the hangers to the development troughs or to the drying chamber, carried by the hanger frame, as well as having a control unit with time control, the control unit controlling the transport devices by means of the time control. Separate trough switches, which interact with the hangers and operate under their control, are provided in the troughs. An indicating device is connected to the trough switches and indicates the hangers which are situated in the troughs. The time control is adjustable so that the dwell time of the hangers can be regulated. The trough switches advantageously consist of magnetic switches. Each hanger is provided with a magnet, in such a manner that the magnet passes into the immediate vicinity of the switch of the pertinent trough when the hanger is suspended at the pertinent trough. The magnetic switches are advantageously disposed in a substantially closed protective casing.
Patent DE-3122042-A1 (DE)
Title: Method and test circuit for testing isolated cable sections for earth fault
Inventor: VOIGT HANS-HERBERT DIPL ING
IPC: G01R31/02
Filed: 1981-05-29
Abstract: In a method and a test circuit for testing isolated cable sections for earth fault, particularly medium- or high-voltage cables which can be open at their end or can be connected by loads, it should also be possible reliably to detect high-impedance and voltage-dependent insulation faults and reliably to prevent the power system voltage from being connected when insulation faults have been found. For this purpose, the cable is continuously charged up by a charging current (IL) to a voltage (UL) the amplitude of which corresponds to that of the power system voltage before the power system voltage is connected. At the same time, a current (IV) proportional to the charging current (IL) charges up a comparison circuit (10), the voltage (UV) of which is continuously compared with a voltage (UM) corresponding to the charging voltage (UL) of the cable. When a nominal measurement voltage (UN) proportional to the nominal power system voltage is reached (UM >/= UN) by the voltage (UM), the test process is ended and the connection of the power system voltage is enabled whilst, when the voltage (UM) drops below (UM < UV) the reference voltage (UV), the test process is immediately aborted, the connection of the power system voltage is disabled and, at the same time, the existence of an earth fault is indicated. <IMAGE>
Patent DE-3125328-A1 (DE)
Title: Electronic emergency telephone
Inventor: BIENZEISLER ULRICH DIPL ING
IPC: H04M17/02
Filed: 1981-06-27
Abstract: The electronic emergency telephone is used for charge-free transmission of an emergency call from a payphone to an answering station. It contains switches with memory facilities, preferably bistable relays (K-k, A-a, Ü-ü) which are electronically actuated via transistors (T5-T7) and which disconnect the link to the payphone and set up the link to the exchange connection line, and an electronic switch (T1) which generates dial signals and a location identifier by forming loop interruptions and loop closures. It is controlled by a microcomputer (MC) to which a programmable memory (SP) for the location identifier is connected. Furthermore, the microcomputer forms a pulse digit generator which determines the duration, number and sequence of the pulses which are to be transmitted. A constant current generator (T3) is connected in parallel and a Zener diode (Z2) is connected in series with the electronic switch (T1) which sets up the loop interruption and loop closure in order to allow power to be supplied via the exchange battery (line feed). They cause the input resistance of the arrangement to be very high during loop interruption and very low during loop closure. <IMAGE>
Patent DE-3125933-A1 (DE)
Title: Heat exchanger
Inventor: PAIN JOHN RONALD
IPC: F28D7/10
Filed: 1981-07-01
Abstract: The heat exchanger has doubled sealing elements through which a circulation fluid circulates. The circulation fluid can be used to determine leaks, for the purpose of cooling, or for sterilisation or other purposes. The heat exchanger contains a multiplicity of coaxially arranged tubes (4) made from thermally conductive material, which are held at a spacing in the radial direction by a pair of final distributors (2), in order to form annular passages for fluid flow. At least one of the distributors (2) has first and second sealing elements (25) for forming seals between the distributor (2) and the ends of the tubes (4). In this case, fluid passages (30) extending along a circumference are formed between the first and second sealing elements (25). The final distributor (2) further has circulation fluid inlets (32, 18, 34) for feeding a circulation fluid to first points in the passages (30), as well as circulation fluid outlets (36, 19, 38) for discharging the circulation fluid at second points in the passages (30). The first and second points for each passage (30) are arranged offset from one another over a circumference. <IMAGE>
Patent DE-3131003-A1 (DE)
Title: Electrical switch, especially for motor vehicles
Inventor: BOETZ JAKOB
IPC: H01H1/36
Filed: 1981-08-05
Abstract: The invention is intended to simplify the construction of an electrical switch, especially for motor vehicles, which has a movable switching element, a contact link (which is held on the switching element with lateral play and is loaded by a compression spring) and four stationary contacts (which are connected to one another in an on position by the contact link), so that the required cost of parts and assembly is reduced. This is achieved in that the stationary contacts are arranged in pairs one behind the other (in series) and in that the contact link in the on position is located at two points in each case between the two stationary contacts belonging to a pair, has play (with respect to the switching element) at right angles to a connecting line between these two points and acts on the stationary contacts in a direction which is at an angle to the spring force.
Patent DE-3131559-A1 (DE)
Title: Method of producing cast-in-situ piles
Inventor: WINKLER FRIEDRICH
IPC: E02D5/38
Filed: 1981-08-08
Abstract: A method of producing cast-in-situ piles having reinforcement and a pile shoe is described, in which a casing tube is arranged concentrically inside the reinforcement, the reinforcement and the casing tube are driven by the pile shoe into the ground, and the annular gap between casing tube and earth is filled with concrete during the pile driving.
Patent DE-3147570-A1 (DE)
Title: Process for separating ash from a fly ash/water suspension
Inventor: ECKSTEIN GUENTER KLAUS DR
IPC: B01D37/04
Filed: 1981-12-01
Abstract: In a process for separating fly ash from a fly ash/water suspension by filtration, slag particles are added to the fly ash/water suspension before filtration, in order to improve the filterability of the suspension.
Patent DE-3148550-A1 (DE)
Title: Method for disposing of sewage sludge
Inventor: SCHWERDTFEGER JOACHIM
IPC: C02F11/10
Filed: 1981-12-08
Abstract: The invention relates to a method for disposing of sewage sludge, wherein the sewage sludge is introduced into an iron bath. To save energy and costs in the operation and to minimise the heavy metal pollution of the environment, the sewage sludge is introduced together with carbon, oxygen and lime into the iron bath, the gas generated in the iron bath is used as reducing gas in the direct reduction of iron ore, after previously having been cooled to the temperature required for direct reduction, and the top gas formed in the direct reduction is passed through a scrubber, in which heavy metals introduced by the sewage sludge and the carbon are removed from the top gas.
Patent DE-3150740-A1 (DE)
Title: Pill-holding bracelet
Inventor: BLECKER GEB MEYER
IPC: A44C9/00
Filed: 1981-12-22
Abstract: Containers for drugs, sweeteners and miniaturised utensils are known in a wide variety of forms, dimensions and designs. Such containers are adapted to a small-sized wearable item, especially a jewellery item, in terms of size and are assigned to the latter in such a way that the two form a single part. In the case of a finger ring, for example, this is achieved in that the support or the mounting for the jewel is designed as a small container which can be opened by means of a lid. In the case of a bracelet, the container can be integrated into the latter, a part-region being openable by means of a lid and the region covered by the lid being subdivided, for example, by partitions. In the case of a lipstick, also, the empty cases are provided with a closure and can thus be used as containers for drugs, sweeteners and miniaturised utensils. <IMAGE>
Patent DE-3201389-A1 (DE)
Title: Process and device for mounting pressure plates in material-testing machines
Inventor: SOLMITZ HARALD A DIPL ING
IPC: G01N3/02
Filed: 1982-01-19
Abstract: The invention relates to a process and a device for mounting pressure plates in material-testing machines, according to which the resistance with which the pressure plate opposes the adjustment can be preselected or set by means of the variable prestressing force of the supporting bush and/or the ratio of the prestressing force acting on the supporting bush and of the clamping force acting on the carrier bush; according to a preferred embodiment, the clamping forces for the carrier bush are exerted hydraulically.
Patent DE-3202496-A1 (DE)
Title: Forage harvester
Inventor: PUERRER JOSEF
IPC: A01F29/10
Filed: 1982-01-27
Abstract: The forage harvester has two upper press rollers mounted with the cutting drum in front, which rollers act in concert with draw-in rollers arranged beneath. In order to maintain the optimum distance between the cutting drum and the upper press rollers, the linkages to which the press rollers are fixed are split and can be extended in length by means of elongated holes, spindles or shims. <IMAGE>
Patent DE-3203447-A1 (DE)
Title: Wedge-cut saw
Inventor: LUTZ EUGEN
IPC: B23D45/14
Filed: 1982-02-02
Abstract: A wedge-cut saw is described which has a slide which is guided by a work rest and can be displaced relative to this work rest via feed devices and on which two saw blades are arranged which are perpendicular to one another with their axes. The periphery of the saw blades is tangent to a straight line running in the feed direction. According to the invention, the slide is composed of two parts, of which one is provided with the saw blades and the other is designed as a slide rest, displaceable in the feed direction, for the first slide. This slide rest has a guide running at right angles to the feed direction and a drive for the first slide, which drive acts in the direction of this guide. This design enables quicker re-setting with regard to the kerf depth. Subsequent damage to the cut surfaces by the saw blades is reliably prevented. In the novel arrangement, the saw blades can be moved both vertically and horizontally to the workpiece so that on the one hand contact between the running saw blades and the cut made is avoided during the return stroke. It is also possible to make wedge cuts of varying depth one after the other with one and the same wedge-cut saw.