baber/WOPTO huggingface dataset:
Patent DE-3041204-A1 (DE)
Title: Work platform for access to outside window - has balance and support frame for cantilevered girder on underframe
Inventor: FROHN JOSEF
IPC: E04G3/18
Filed: 1980-11-03
Abstract: Safe and convenient working conditions, without the major expense of scaffolding, are provided by a stage for outside work on windows. A cantilevered carrier (1) is fastened or stretched on a support frame (2), on one side. A bottom frame (3) accommodates this frame and the compensating load (8). There may be two such cantilevered carriers, pref. at a variable horizontal distance apart. Their level may also be variable. The stage can be fitted with a detachable ballast carrier. The support frame can be fastened to an upright support on the bottom frame. There can also be an adjustable safety support and the whole unit can be dismantled for transport.
Patent DE-3044074-A1 (DE)
Title: Repeater brake lights in vehicle rear window - mounted in combined casing with audio system loudspeakers
Inventor: KUEFFNER REINHOLD
IPC: B60Q1/30
Filed: 1980-11-24
Abstract: A common housing contains a loudspeaker and a brake light. The housing is mounted on the rear shelf inside a passenger vehicle so that the brake light is visible to following traffic through the rear window. The units are typically installed in pairs. By using an integrated loudspeaker and brake light assembly certain advantages are gained. These are principally a more economical use of space, thus giving less obstruction to the driver's view through the rear window, and a quicker installation as only a single unit has to be fitted. By limiting the loudspeaker and lamp variations allowed initial and replacement costs can be held down.
Patent DE-3044238-A1 (DE)
Title: Async. motor DC braking circuit - has manual or electromagnetic operating switch whose rest contact(s) is incorporated in line of auxiliary circuit
Inventor: SCHOLZ HORST ING GRAD
IPC: H02P3/24
Filed: 1980-11-25
Abstract: The switching device for an asynchronous motor current uses a shunt circuit, bypassing switch-on to members of an operational switch, in which is incorporated a controlled half-wave rectifier. The latter comprises a braking thyristor, a freewheeling diode, and switching members, all coupled to the motor coil. The operational switch (B) is manually or electromagnetically operated. In the conductor (L'T) of the shunt circuit are incorporated this switch rest contacts (1,2) is series with the braking thyristor (Th), between the latter and the asynchronous motor. The other conductor (L'S) of the shunt circuit also incorporates a rest contact (3). All rest contacts are switched simultaneously, but do not overlap w.r.t. the ON switching members (5-7). One rest contact (1) of the first conductor is coupled to a parallel circuit of a capacitor (K), a resistor (W), and a varistor (V).
Patent DE-3045686-A1 (DE)
Title: Prolonged contact with liq. removes soluble dust - from exhaust fumes descending through vertical towers
Inventor: HOELTER HEINZ ING GRAD
IPC: B01D47/02
Filed: 1980-12-04
Abstract: Very fine dust particles down to below one micron and of salt like structure are kept in contact with cleaning liq. for protracted period until the salt has completely dissolved. The claimed appts. includes a tower with tube bundles connected to the top of the fume-emitting plant and which can contain multiple co-flow and counterflow washing stages, terminating in a base separator for coarse drops. The final gas outlet removes remaining droplets before the residual fumes leave through a chimney. The washing stages contain inserts which constantly return peripherally descending liq. to the stage axis. Suitable for urea mfg. plant etc. wherein hygroscopic dust can clog textile filters, electrofilters involve heavy corrosion and explosion risks, and venturi equipment needs high kinetic energy. Pressure drops and flow rates are low. A liq. flow rate of 0.2 l. per cu.metre of raw gas provides effective cleaning over tube lengths 10-50 metres.
Patent DE-3107319-A1 (DE)
Title: Circuit arrangement for biphase/binary signal conversion
Inventor: APPELMANN WOLFGANG DIPL ING
IPC: H04L25/48
Filed: 1981-02-26
Abstract: For asynchronous biphase level/binary signal conversion, "0" or "1" signal states are determined with the aid of two counters which sample the BPL signal and which, with the double-length signal element (= bit length), last more than one signal element length (= half a bit length), whereupon a binary signal state change is in each case effected.
Patent DE-3107483-A1 (DE)
IPC: A63C19/02
Filed: 1981-02-27
Abstract: 1. Ground covering for open spaces, in particular for recreation and sports grounds, having a surface layer of water-permeable artificial lawn (16), an intermediate layer of water-permeable rot-proof mat (14) and at least one base layer (10, 12) characterised in that the base layer has a mat (12) which is embedded in a filler material (10) and which consists of wires of synthetic material, which are arranged to form loops, are superimposed in multiple layers and are welded together at contact points, and the water-permeable mat forming the intermediate layer is in the form of a filter mat (14) which is impervious to granular material.
Patent DE-3109023-A1 (DE)
Title: Double-seated valve with leakage control and two valve plates which can move independently of one another
Inventor: BRAEKELMANN WOLFGANG
IPC: F16K1/44
Filed: 1981-03-10
Abstract: In such double-seated valves, two valve plates which can move independently of one another are provided one of which can be placed on the second, after a movement distance which can be defined during the opening process, and forms a cavity with said second valve plate. During the movement of a valve plate to its stop on the second valve plate, a relatively large annular gap is formed which allows the fluid which is guided above the valve seat to flow out into the cavity (10). In order now to achieve a fluid loss which is as small as possible, it is intended to provide a restrictor gap, a recess (7) being provided between the two valve seating surfaces (5, 6) arranged one above the other, which recess tapers in the region of the larger valve plate (2) and forms a projection ring (8) which is only slightly larger than the external envelope diameter (9) of the upper valve plate (3) and, together with this upper valve plate (3), forms a restrictor gap during its opening movement. <IMAGE>
Patent DE-3109993-A1 (DE)
Title: Device for tobogganing
IPC: B62B15/00
Filed: 1981-03-14
Abstract: A device for tobogganing is to be designed in such a manner that it can easily be stowed, even in a handbag or coat pocket, and can be used both in the winter and in the summer, i.e. on snow, grass or sand (dunes). This is achieved by a triangular sitting area (1) made of a flexible, strong material with a surface capable of sliding, there being arranged at one corner (2) of the sitting area (1) a ring (4) through which can be passed the free ends (9, 10) of a cord which runs in a tubular lead-through (7) formed over the entire length of the side edge (6) opposite the ring (4). <IMAGE>
Patent DE-3119591-A1 (DE)
Title: Device for switching cylinders of an internal combustion engine off and on
Inventor: LINDER ERNST DIPL ING
IPC: F02D17/02
Filed: 1981-05-16
Abstract: A device is proposed for switching cylinders of an internal combustion engine off and on which acts as a function of the load and speed of rotation, preferably with selective fuel metering to the individual cylinders, and in which switching cylinders on and/or off can be influenced directly (for example manually) by the driver of the vehicle fitted with the internal combustion engine. Two embodiments are proposed with different alternative solutions, switching cylinders off generally being excluded during warming up and at full load, it being furthermore ensured that when running the internal combustion engine with cylinders switched off the cylinders are switched back on at full load. <IMAGE>
Patent DE-3121220-A1 (DE)
Title: Water heater
Inventor: IWASAKI YASUTAKA
IPC: F24H1/14
Filed: 1981-05-27
Abstract: Water heater, in which the heat is obtained by combustion, with a collecting device (9) for collecting the dripping water which occurs during combustion, so that corrosion of the components of the water heater by dripping water is avoided. <IMAGE>
Patent DE-3126864-A1 (DE)
Inventor: WOLFRUM ERHARD DIPL CHEM DR RE
IPC: E21F17/18
Filed: 1981-07-08
Abstract: For the early detection of fires smouldering in containers containing lignite dust, the presence of gas containing hydrogen and/or hydrocarbons is measured within the containers, respectively around the containers, those gases not being normally present in lignite dust or being present in very small amounts which are hardly detectable and appearing only with the formation of smouldering fires.
Patent DE-3128359-A1 (DE)
Title: Installation for water heating
Inventor: ZORTEA REMBERT
IPC: F24D19/10
Filed: 1981-07-17
Abstract: A heating arrangement (1) and storage containers (3, 4) are provided in a heating installation for water heating. Connected downstream of the heating arrangement is an intermediate accumulator, by which the water from the heating arrangement is guided in a circuit. The water in each case situated in the intermediate accumulator is, after corresponding heating, supplied in batches to the storage containers (3, 4) by a circulating pump (14) which can be switched on by a control device. After each batchwise supply, the connection pipes (10, 11) to the storage containers (3, 4) are interrupted by switching off the circulating pump (14) and the water in the intermediate accumulator (2) is for the time being heated from the heating arrangement again. <IMAGE>
Patent DE-3129652-A1 (DE)
Title: Abrasive roller for woodworking machines
Inventor: KOLB SIEGFRIED
IPC: B24D9/04
Filed: 1981-07-28
Abstract: Given an abrasive roller (1) for woodworking machines, composed of a sleeve-type base body (2) to be fastened on a driven shaft and of an abrasive sleeve (5) which consists of sandpaper and can be braced on the base body by means of rubber rings (4), said base body (2) is provided with continuous helical grooves (11) made in its outer casing surface. This results in the heat rising during abrasion being rapidly discharged. In fact, a large quantity of air is pressed through the helical grooves (11) during rotation of the abrasive roller (1). An accumulation of heat and thus overheating of the abrasive sleeve (5) and/or of the workpiece are thus eliminated, with the result that the abrasive roller (1) may also be driven at high speeds. <IMAGE>
Patent DE-3129939-A1 (DE)
Title: Process for nitriding magnetic conductor parts of armco iron
Inventor: BUKAREV VJACESLAV N
IPC: C23C8/00
Filed: 1981-07-29
Abstract: The process for nitriding magnetic conductor parts of armco iron comprises heating the parts in a saturation medium. After a temperature equal to the temperature of the formation of active nitrogen has been reached, a direct magnetic field of a strength of 1.6-80 kA/m is generated. The isothermal holding of the parts is also carried out in saturation medium under the action of the magnetic field. In the first stage of the isothermal holding, the nitrogen potential is held at a level at which the formation of an  alpha -solid nitrogen solution in iron is ensured, and in the second stage it is held at a level at which the formation of an  epsilon -iron nitride is ensured. Cooling of the parts to a temperature, at which air oxidation of the surface of the treated parts is excluded, is carried out under the action of the magnetic field. <IMAGE>
Patent DE-3147731-A1 (DE)
Inventor: PETSCH JOHANN
IPC: H02P7/03
Filed: 1981-12-02
Abstract: A digital current regulator circuit for a DC load that is connected within a transistor bridge circuit for multi-quadrant operation contains a digital comparator to which binary actual value codes and theoretical value codes are applied as well as a control unit for the time-discrete unipolar control of the transistors in dependence on a central timing signal. To avoid current distortions when the polarity of the load current changes, a blocking circuit is provided, by means of which the bridge circuit can be blocked when the polarity of the theoretical value code changes. A release circuit is also provided that terminates the blockage as soon as the load current actually becomes zero.
Patent DE-3203012-A1 (DE)
Title: Method and circuit arrangement for generating interpolation values between stored samples
Inventor: BAYATI ABUTORAB DR ING
IPC: H03M1/00
Filed: 1982-01-29
Abstract: A method for generating interpolation values between samples, stored in each Pth of N storage cells of a digital memory (4), of an analog signal digitised in a first analog/digital converter (2), in which the samples are read out of the digital memory (4), are converted into an analog signal by means of a digital/analog converter (8) with subsequent reconstruction filter (9) and the signal is digitised in a second analog/digital converter (10) with a sampling rate which is P times the read-out frequency, and the digital values thus interpolated are read into the N cells of the digital memory (4). The invention is applied in transient recorders. <IMAGE>
Patent DE-3205328-A1 (DE)
Title: Arrangement for image displacement and changing the optical path length
Inventor: GROSSER JOHANNES DIPL PHYS
IPC: G02B7/18
Filed: 1982-02-15
Abstract: The invention relates to an arrangement for image displacement and changing the optical path length by means of reflecting surfaces. The aim of the invention is an arrangement which can be used simultaneously for the purpose of changing the optical path length and for image displacement, and is constructed in a space-saving fashion. The required scale factors are to be specified for electronic signal processing. The arrangement can be constructed as a separate unit and be used in different optical instruments, such as microscopes, adjusting devices, etc. In addition to the visible waveband, operations may be carried out in other wavebands as well. An input mirror and an output mirror are arranged inclined with respect to one another, and at least one reflecting surface is located therebetween in the beam path. The input mirror and the output mirror can be jointly displaced in two directions enclosing an angle relative to one another, an image displacement being achieved in one direction and a change in the optical path length being achieved in the other direction. <IMAGE>
Patent DE-3210716-A1 (DE)
Title: Metal measuring rod and method of producing it
Inventor: NAKAMURA HIROMI
IPC: G01B1/00
Filed: 1982-03-24
Abstract: A straight, magnetic metal rod (1) is coated with a plated layer (2) which contains nickel and phosphorous. A high energy density is subsequently applied in the form of a fine beam (3) to the surface of the plated layer (2), in each case at a specific distance, so that the permeability of the regions (4) of the plated layer (2) that are exposed to the high energy density is changed. The changed regions (2) act as measurement graduations of a measuring rod (6). A magnetic measurement sensor is used in order to establish the variation in permeability, and thus to measure the movement, the speed or the acceleration of the measuring rod (6) relative to the magnetic measurement sensor. The measuring rod (6) can be constructed as a movable part of a machine, for example as a piston rod of a mould- casting machine or a die-casting machine. <IMAGE>
Patent DE-3217324-A1 (DE)
Title: Titanhaltige zeolithe und verfahren zu ihrer herstellung sowie ihre verwendung
Inventor: BALTES HERBERT DR
IPC: C07C1/20
Filed: 1982-05-08
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Essigsäure, Acetaldehyd und Ethanol durch Umsetzung von Kohlenmonoxid mit Wasserstoff an Rhodium und Promotoren enthaltenden Trägerkatalysatoren bei erhöhten Temperaturen und Drücken. Als Promotoren werden ein oder mehrere Elemente der Ordnungszahlen 21, 39 und 58 bis 71 in Form nichtoxidischer Verbindungen verwendet.
Patent DE-3217465-A1 (DE)
Title: Hydrodynamic coupling
Inventor: HAIDE KARL
IPC: F16D33/18
Filed: 1982-05-08
Abstract: In the empty condition, with the pump impeller (11) rotating and the turbine wheel (12) stationary, a hydrodynamic coupling is supplied with a small quantity of cooling fluid. The arrangement of openings in the coupling shell (13) of the primary impeller (11) in front of the outlet edge (20) of the blades (16), and outlet openings formed radially to the outside of these openings of the coupling shell (13) in the coupling housing (17) ensure that the cooling fluid can flow off without filling the coupling and without entering the turbine wheel (12) of the coupling. The taking up of air in the cooling fluid results in a partial vacuum in the coupling which reduces the power consumption and hence the amount of heat to be carried away in the cooling fluid. <IMAGE>
Patent DE-3224301-A1 (DE)
Title: Circuit arrangement for operating a three-phase machine, which is supplied from a DC-link converter, in the field-weakening range
Inventor: BEINHOLD GEORG ING GRAD
IPC: H02P23/06
Filed: 1982-06-26
Abstract: If a three-phase machine (5) is braked in the field-weakening mode, an undesirable increase in the DC-link circuit voltage occurs in the case of a converter which supplies the three-phase machine (5) with a variable DC-link circuit voltage and frequency tracking. In order to avoid this, an additional desired-value transmitter (15) is provided which, from the DC-link circuit voltage control variable, supplies a continuously increasing desired value as an additional value to the fundamental value for frequency tracking when the DC-link circuit voltage exceeds 90% of the maximum permissible value. The additional desired value-transmitter (15) is at the same time connected to the voltage regulator (8) via which the DC-link circuit voltage is regulated. <IMAGE>
Patent DE-3228575-A1 (DE)
Title: Structural unit consisting of an ellipsoid reflector and a halogen incandescent lamp
Inventor: RAKITSCH PETER DIPL ING
IPC: G03B21/20
Filed: 1982-07-30
Abstract: The reflection surface of the reflector of the structural unit has a curvature which conforms to the shape of the curved element of an ellipse in accordance with the equation <IMAGE> tilted through the angle 2 of -2.4 DEG . The luminaire of the halogen incandescent lamp of the structural unit is projected directly into the plane of the microfilm to be observed. Short bearing dimension. The collecting lens which is normally required because of a large bearing dimension is omitted. Structural unit for use as a light source in microfilm readers. <IMAGE>
Patent DE-3231538-A1 (DE)
Title: Thread-cutting tool
IPC: B23G1/24
Filed: 1982-08-25
Abstract: The thread-cutting tool has an electric motor with which a holder ring for accommodating cutting heads is driven in a rotatable manner. The speed of the electric motor is greater than about 25,000 rev/min. The holder ring is provided with a worm-gear tooth system which has a module of less than about 1.6 mm. The thread-cutting tool can thereby be of very small and light construction and can also have a high capacity. Consequently, the thread-cutting tool can also be easily handled for a prolonged period.
Patent DE-3232060-A1 (DE)
Title: Process and intermediate product for the production of a one-piece machine-readable information carrier
Inventor: SCHREIBER SIEGURT
IPC: B42D15/10
Filed: 1982-08-28
Abstract: The multi-stage production of a machine-readable information carrier, e.g. a personnel identity card, takes place in such a manner that the data carrier layer (10), containing the machine-readable data, e.g. magnetised wires, or a frame (14) immovably receiving this layer, is provided with a first guide device, e.g. guide holes (16,17), and is inseparably enclosed between two cover layers (18,19), which if necessary can be opaque, such that the guide device remains free. The intermediate product obtained in this way can be processed into the finished product by another party, e.g. the individual submitting the order, in that it is inseparably connected, e.g. welded, to the further layers (layer for the optically readable data, the photo, transparent cover layers), whereupon a readout edge is cut in the welded stack in a precisely defined position relative to the machine-readable data by means of a cutter device which contains a second guide device complementary to the first guide device, e.g. guide posts (41,42) which are pushed through the guide holes (16,17). Advantages: Alignment can be controlled even on the intermediate product, reduced rejection, lower requirements on production personnel, possibility of preventing the final-production personnel viewing the machine-readable data. <IMAGE>
Patent DE-3234305-A1 (DE)
Title: Method and device for adjusting the angle of inclination of the backrest of a vehicle seat
Inventor: ZIV AVRAHAM
IPC: A47C1/025
Filed: 1982-09-16
Abstract: Device for adjusting the angle of inclination of a vehicle seat, in which case a backrest support arm has locking teeth which interact with teeth of a locking latch which itself is rotatably mounted. An improved pivotable bearing of the latch is described, the pivot axle being capable of readjustment after installation of the adjustment device in order to compensate the overall tolerance of the mechanical parts. The rotatable bearing has a single-piece bushing with a pair of cylindrical surfaces arranged at a distance from one another, said surfaces being received in a coaxially rotatable manner in a bearing frame which is associated with the vehicle seat, and a cylindrical rotational surface between the two bearing surfaces, on which the locking latch is pivotably arranged. The central line of the rotational surface is provided eccentrically with respect to the central line of the bearing surfaces. <IMAGE>
Patent DE-3241863-A1 (DE)
Title: Drilling hammer
Inventor: WOLF OTTO DIPL ING DR
IPC: B25D16/00
Filed: 1982-11-12
Abstract: A drilling hammer having a percussive mechanism in whose cylindrical guide tube a piston-like drive member is sealingly and slideably guided, the drive member being set in reciprocating movement by an electric motor via a rotating wobble plate and the tool being rotationally drivable via a countershaft, is to be improved in such a way that the rotational speed of the wobble plate can be fixed independently of the rotational speed of the countershaft, and the drilling hammer can also be switched in a simple way to the "striking" or "hammering" operating mode. This is achieved by the fact that the wobble plate is drivable independently of the countershaft and that alternatively either only the wobble plate or only the drilling spindle sleeve can be set in rotation, and that the drilling spindle sleeve and the wobble plate are also simultaneously drivable.