baber/WOPTO huggingface dataset:
Patent DE-3029672-A1 (DE)
Title: Discharge lamp auxiliary power supply - has separate oscillator and independently powered regulation circuit providing high stability lamp voltage
Inventor: KERSCHER MAX
IPC: H05B41/298
Filed: 1980-08-05
Abstract: The power supply provides a high stability light output. The supply is driven from an AC power source, the reservoir capacitor voltage being stabilised by a single transistor acting as a switch across a non-filtered DC generator via a load inductance. The reservoir capacitor is fed from this inductance and the supply oscillator via a choke and diode the capacitor loop being completed via the transistor emitter and a series CR circuit to the generator. The stabilising transistor is controlled from a regulation circuit separately powered by a rectifier and shunt capacitors. The regulation circuit operates as a function of inputs from a potentiometer across the supply and from the supply oscillator. A diode connected in the opposite conduction sense across the transistor discharges diode and inductance self capacities.
Patent DE-3033584-A1 (DE)
Title: DC motor control circuit for cine appts. - maintains precise rotation and has end stage coupled to comparator for exponential control
Inventor: ACKERMANN MANFRED
IPC: H02P1/20
Filed: 1980-09-06
Abstract: The control circuit has an end stage controlled by a comparator (14) receiving a voltage from an RC element (12,13) proportional to the actual motor rotation and a reference voltage representing the required rotation. The output of the end stage is fed back via a further RC element (30,31) to the comparator (14) with the end stage only switched in when the motor (10) is switched on, to obtain exponential control of the end stage. Pref. the comparator (14) uses two transistors (19,20) in cascade with the motor (10) connected in parallel with the collector resistance of the second transistor (20) via a pair of switch contacts (27,27a). These also allow completion of a feedback path to the base of the first transistor (19) with the feedback RC element (30,31) coupled to the collector of the second transistor (20).
Patent DE-3035476-A1 (DE)
Title: Multilayer plastics film for food containers - comprises laminated vinyl! alcohol (co)polymer layers with intermediate adhesive hydrolysed vinyl! acetate (co)polymer layer
Inventor: KNOTT II JACK EDWARD
IPC: B32B27/08
Filed: 1980-09-19
Abstract: Barrier layers consisting of purified vinyl alcohol (co)polymer are laminated and then, an adhesive layer consisting of hydrolysed vinyl acetate (co)polymer having residual radical of vinyl acetate is inserted between two barrier layers by means of alternately laminating step. Futher, a copolymer layer of ethylene-vinyl alcohol may be used for the barrier layer and further, the adhesive layer is chosen from a layer of partially hydrolysed polyvinyl acetate, a layer of partially hydrolysed copolymer of EVA a polyolefin layer or a nylon layer. The mult-laminated plastic film is entirely free from oxygen permeability and is used for producing a container to foods. Oxidative deterioration of the foods is prevented.
Patent DE-3035862-A1 (DE)
Inventor: LINHART HEINZ
IPC: D02G1/02
Filed: 1980-09-23
Abstract: Filament yarns composed of multicomponent fibers of the matrix/segment type are produced and processed into textile fabrics by false-twist texturing the multicomponent fibres made up of segments of varying deniers to cause softening the matrix to bond the filaments together over short, medium or longer sections of the yarn. After conversion of the yarns into fabrics, the fabrics are subjected to a shrinking treatment. The fabrics so treated have a reduced tendency to crease or wrinkle, better crease recovery and better dyeing properties. The denier of the lower denier segments should be finer than 0.6 dtex and the denier of the high denier segments should be at least 1 dtex; the weight ratio of low to high denier segments in the yarn ranges from about 25:75 to about 75:25. The matrix is preferably made of polyamide 6 while the segments are polyethylene terephthalate. The cross-sectional shapes of the fibers may e.g. resemble a toothwheel with fine peripheral segments and a coarser core, combinations of three-toothed wheels with 12 or 6 peripheral teeth or similar combinations of orange-shaped cross-sections such as 3 and 6 "slices".
Patent DE-3037575-A1 (DE)
Inventor: VOCK FRIEDRICH DR
IPC: C08J3/14
Filed: 1980-10-04
Abstract: A process and apparatus for the preparation of aqueous synthetic resin dispersions by using water to precipitate the synthetic resins from their solutions in water-miscible solvents. The solutions may contain pigments, extenders, and additives. The precipitated solids are separated off and dispersed uniformly in an aqueous medium. The precipitation of the synthetic resins is carried out in the presence of inert grinding bodies.
Patent DE-3038923-A1 (DE)
Title: Plastics disposal bags for artificial defecation receptacles - are connected via perforations to strips welded to form rigid element
Inventor: RAUNSER KURT
IPC: A61F5/445
Filed: 1980-10-15
Abstract: The supply (1) of bags (2-5) in tear-resistant plastics foil is intended for disposal of faeces receptacles worn by a patient with artificial defecation opening (e.g. after a colectomy) and of cleaning tissue etc. The foil is opaque (e.g. black or black-coated) and the rectangular bags measure 20 x 32 cm plus or minus 25%. The bags are open along one narrow side (8) where they are connected, via a perforation (11) to a foil strip (9). These strips are welded together to form a rigid composite element (13). The element (13) may have an opening (14) for hanging the supply. Each bag may have a closure strap (15) fixed (16) to the side and provided with a self-adhesive end (17).
Patent DE-3046446-A1 (DE)
Title: Automatic cuvette for determining COD - with rapid removal of hydrogen chloride by rotating inclined cuvette
IPC: G01N33/18
Filed: 1980-12-10
Abstract: A method or rapidly determining the chemical oxygen demand by increasing the surface area of the substance under test with removal of hydrogen chloride and simultaneous processing of a number of specimens (6,12, 18 or 24) comprises rotating the specimen vessels in a vertical or pref. slightly inclined position about their own axis. Pref. a number of specimens are mounted upright and slightly inclined in a circular or rectangular formation and are rotated each about its own axis. A slight vacuum may be applied to the cuvettes to reduce the vapour pressure. Heat is applied to accelerate evaporation of hydrogen chloride. Used for determining the chemical oxygen demand of water, where the potassium dichromate quantity is determined as a measure of the oxygen equivalent. By exposing a larger surface of the liquid, the hydrogen chloride is more rapidly removed and thus the process carried out more rapidly.
Patent DE-3108571-A1 (DE)
Title: Process for producing a backing laminated with a thermoplastic decorative material and device for carrying out the process
Inventor: POSCH GEORG
IPC: B29C51/16
Filed: 1981-03-06
Abstract: In the production of partly padded backings which are covered with a cover sheet or decorative sheet, with the use of closed-cell foam for the padding, the decorative sheet is laminated onto the backing and onto the foam material fixed to the backing, the sheet heat leading to a thermal activation of the adhesive layer on the backing and the padding during the laminating process. To produce a backing which is covered with a decorative sheet and is provided with soft padding in a partial region, a region (21) is preformed into the decorative film by means of an embossing mould (12), into which the padding material previously fixed to the backing is introduced. During this the backing (10) lies on a backing mould (3) which can be moved towards the embossing mould (12). The backing mould (3) is provided with a seal around the region (15) to be padded to partition off the region to padded from the pressure differential required for laminating the sheet (11) on the backing (3) and to be able to act on this region possibly with a pressure differential which is opposite to that outside the region (15) to be padded. Both the embossing mould (12) and the backing mould (3) can be connected via bores (16, 17 and 5, 6) to a subatmospheric pressure source, whereas the embossing mould can be connected in the region of the surface, to be padded, of the backing, via a bore (7, 8), to a superatmospheric pressure source. The sheet (11) to be laminated on can be introduced between the two moulds (12 and 3) by means of a transport apparatus (19) after it has previously been brought to deformation temperature by means of a heating device. If only a change of the surface structure is to be carried out in the partial region, a flat embossing mould (12') is used. The subsequent laminating operation then takes place in the same manner as after the deformation of the sheet in the partial region for receiving the padding. <IMAGE>
Patent DE-3112584-A1 (DE)
Title: Method and device for separating a mixture of two materials
Inventor: MANZ ROLF DR
IPC: B04B1/02
Filed: 1981-03-30
Abstract: The invention relates to a continuously operating centrifuge for separating a suspension or an emulsion or the like, with which centrifuge the greater part of the kinetic and potential energy of the rotating material is recovered so that the only drive power which is required is the energy for overcoming the frictional losses.
Patent DE-3115416-A1 (DE)
Title: Office machine with an electromagnetic linear motor
Inventor: KITTEL ARTHUR ING GRAD
IPC: B41J19/30
Filed: 1981-04-16
Abstract: The electromagnetic linear motors which can be used as the drive in series-operation printers of office machines primarily have good dynamic characteristics with fine steps following rapidly on from one another. The linear drives previously known have dimensions which are not suitable for office machines of flat and compact design. Additionally, these linear drives are still very expensive to manufacture. These disadvantages are avoided according to the invention in that the printer is mounted in a crossmember (11) so as to be displaceable along the recording medium (3), and in that the crossmember (11) consists of an extruded profile with a trough-shaped depression (17), extending in the extrusion direction, for accommodating the magnet (21) or coil arrangement. The office machine according to the invention has simple shaped parts which are very suitable for automatic production and for a flat construction. <IMAGE>
Patent DE-3126059-A1 (DE)
Title: Method for mounting diaphragms on rounds
Inventor: FITZ HERBERT DR
IPC: B25B25/00
Filed: 1981-07-02
Abstract: Diaphragms are mounted on rounds by means of a device having a groove for receiving the piping of the diaphragm. So that the diaphragm can be clamped, the device is rotated about a bearing by means of the diaphragm piping inserted in the groove and is then stopped in the clamped condition.
Patent DE-3126964-A1 (DE)
Title: Aerosol monitor
Inventor: KREINER HANS-JUERG DIPL PHYS D
IPC: G01N1/22
Filed: 1981-07-08
Abstract: The aerosol monitor for measuring the radioactivity concentration of a gas exhibits an in particular tape-shaped filter medium (7) crossing the flow path (1, 5) of the gas and a detector (13), arranged outside the flow path, for measuring the radioactivity concentration on the filter medium (7). A transportation device moves the filter medium (7) at constant average speed in time through the flow path and then past a measuring window (13) of the detector (11). Between the filter medium (7) and the measuring window (13) of the detector (11), a shielding plate (19) is arranged which shields a proportion of the window, which increases in the direction of movement, towards the filter medium (7), at least on the side of the measuring window (13) facing away from the flow path of the gas in the direction of movement (9) of the filter medium. The part of the measuring window (13) facing the flow path is free of shielding material. Overall, the shielding plate (19) shields about 50 to 70% of the area of the measuring window (13). The shielding plate (19) is shaped in such a manner that it exponentially reduces the effective area of the measuring window (13) in the direction of movement (9) of the filter medium (7). In this manner, the resolution of the detector (11) can be increased for short-time changes in radioactivity of the gas, particularly change peaks. <IMAGE>
Patent DE-3138361-A1 (DE)
Title: Short-circuit monitoring circuit
Inventor: NUTZ KARL-DIETHER DIPL ING
IPC: H02H7/127
Filed: 1981-09-26
Abstract: The invention relates to a short-circuit monitoring circuit for a triac or a thyristor. According to the invention, it is provided that a pulse sequence is in each case obtained from the phase control circuit and from a current detector which records the current via the triac, and that the two pulse sequences are linked to one another via a logic device such that, in the event of a disturbance caused by a short-circuit, an output pulse sequence occurs with whose aid the load which is connected to the triac or thyristor can be disconnected.
Patent DE-3150736-A1 (DE)
Title: Voltage supply circuit
Inventor: MATTFELD JOHANN
IPC: G05F3/22
Filed: 1981-12-22
Abstract: The invention relates to a voltage supply circuit for a plurality of operating units, the operating units and the voltage supply circuit forming an integrated circuit. According to the invention, a separate differential amplifier with a voltage divider circuit connected to its output is provided to generate the operating voltage for each operating unit in the voltage supply circuit. These differential amplifier stages are coupled to a further differential amplifier circuit, the operating status of this additional differential amplifier stage being capable of being regulated via a switch such that in each case only the operating unit allocated to one switch position is connected via its associated differential amplifier stage to the operating voltage.
Patent DE-3201372-A1 (DE)
Title: Feedback control system for the air/fuel ratio of an internal combustion engine with a plurality of cylinders and feedback control method for the air/fuel ratio of an internal combustion engine with a plurality of cylinders
Inventor: HOSAKA AKIO
IPC: F02D41/00
Filed: 1982-01-19
Abstract: A feedback control system for the air/fuel ratio or a corresponding method designed in such a way that not only the mean value of the air/fuel ratios for the different cylinders but also the individual air/fuel ratio of the individual cylinders are controlled in such a way that a uniform cylinder-to-cylinder distribution of the air/fuel ratio results. This is achieved, for example, in that by analysing the fluctuations of the signal from an oxygen sensor over a period of time it is detected which cylinder is the cause of any deviation in the air/fuel ratio and that the fuel injection device for this cylinder is then individually controlled. In the case of an internal combustion engine with a carburettor, the timing control of the carburettor occurs as a function of the order of the intake phases of the individual cylinders, in order to control the individual air/fuel ratios.
Patent DE-3204037-A1 (DE)
Inventor: LOHSE KARL-HEINZ
IPC: A61B6/12
Filed: 1982-02-05
Abstract: Angiographic process utilizing contrast mediums for the roentgenographic representation of living organ vessels, especially human, wherein a blank photograph is made of a vascular region to be visualized, a contrast medium is infused into said vascular region, a photograph of the same region is produced after a given time interval, for example 0.5 seconds, and a visual image is produced by photographic subtraction of the two pictures, whereby the quantity of the contrast medium and the X-ray dose used to produce the pictures are reduced by photographically equivalent factors to such an extent that the desired information lies in a density range (blackening range) unsuited to direct observation, and whereby in the process of photographic subtraction the density range containing the information is extracted and transposed onto a visual density range suitable for direct observation of the image.
Patent DE-3209692-A1 (DE)
Title: Flushing cistern for toilets having reduced water consumption
Inventor: SCHUETGENS KARL
IPC: E03D1/14
Filed: 1982-03-17
Abstract: Flushing cisterns for toilets deliver two different quantities of water, depending on requirements, due to the fact that the valve situated above the outlet in the manner of a pipe in the flushing cistern is constructed so as to free, individually and/or separately, various regions of the reservoir which are separated from one another. In this arrangement, the valve can be constructed either in such a way that two pipes situated one inside the other ensure the separate release of quantities of water or alternatively it consists of two valve parts which are assigned to two chambers separated from one another by a wall. <IMAGE>
Patent DE-3210966-A1 (DE)
Title: Phase screw terminal
Inventor: KUEBLER KARL
IPC: H01R11/14
Filed: 1982-03-25
Abstract: The terminal duct, which is used for holding a conductor which is to be gripped, of a phase screw terminal is bounded by at least one hook-shaped jaw (1) and one compression piece (6) which is secured against twisting relative to this jaw. The jaw (1) is a body which is resistant to bending. The compression piece is arranged on the one end section of a threaded spindle such that it can rotate but cannot be displaced axially, which threaded spindle is guided in a threaded hole which is provided in a material element which cannot move relative to the jaw. At least a part of the contact surface (19) of the compression piece (6) for the conductor which is to be gripped is formed by a tongue which is sprung in a limited manner in the displacement direction of the compression piece (6). <IMAGE>
Patent DE-3211184-A1 (DE)
Title: Circuit arrangement for a hands-free telephone
Inventor: WEYEL ARMIN
IPC: H04M9/10
Filed: 1982-03-26
Abstract: The invention relates to a door intercom system which can be dialled and activated via a telephone station of an in-house telephone system and which comprises at least a power supply component, an amplification circuit arrangement which transmits messages according to the two-way voice communication principle and which is DC-isolated from the in-house telephone system, and a door station equipped with a microphone and loudspeaker. In order to implement fault-free DC-isolation and, while reliably preventing acoustic feedback from the door station and values exceeding an optimum level, to enable calls to be made which are controlled by the telephone station and which allow damped two-way communication, at least one transformer is provided which feeds a speech amplifier and is supplied by a microphone amplifier. Inversely controllable attenuation stages with overlapping action, which damp the microphone amplifier when a call is made from the in-house telephone system and which damp the speech amplifier in the absence of the speech AF of the in-house telephone system, are allocated in each case to these amplifiers.
Patent DE-3213139-A1 (DE)
Title: Compositions which dissolve urinary calculi
IPC: A61K31/445
Filed: 1982-04-08
Abstract: The use of certain carboxylic acids or carboxylic acid derivatives which have a litholytic action, according to Patent ... (Patent Application P 3046580.6), or the salts thereof together with calcium- and oxalate-complexing compounds is described.
Patent DE-3222435-A1 (DE)
Title: Schaltventil fuer ein hydraulisches stellglied
Inventor: BALASKAS SPYROS DIPL ING
IPC: F15B21/044
Filed: 1982-06-15
Abstract: Die Erfindung bezieht sich auf ein Schaltventil für hydraulische Stellglieder. Dieses Schaltventil besitzt eine Schaltstellung zum Entlüften, welche über ein mit dem Schieber verbundenes Gleitelement mit einem daran vorgesehenen Anschlag, der mit einem Stößel eines Arretierzylinders zusammenwirkt, leicht einstellbar ist.
Patent DE-3234802-A1 (DE)
Title: Improved powder disperser for electrostatic painting with auxiliary compressed air lines
Inventor: MISSIER GABRIELE
IPC: B05B3/10
Filed: 1982-09-20
Abstract: The invention relates to a powder disperser for electrostatic painting with vertical up and down movement in which the powder mixed with air passes through a container to form an even intermediate space, starting from the circumference of which the powder is thrown outwards. The disperser consists of a container which is divided into two spaces by a foam dividing wall, a first compressed air line opening into the first lower space and a second line of the suspended powder opening into the second upper space. In addition, a third compressed air line can be provided in the discharging intermediate space.
Patent DE-3235639-A1 (DE)
Title: Use of quaternary ammonium salts containing end-group-blocked polyoxyalkylene groups, as bactericides against sulphate-reducing bacteria in process fluids in the oil industry
Inventor: OPPENLAENDER KNUT DIPL CHEM DR
IPC: C02F1/50
Filed: 1982-09-25
Abstract: The use of compounds of the formula I <IMAGE> in which: R<1> is C5- to C16-alkyl, R<2> is C1- to C7-alkyl, C2- to C7-alkenyl or benzyl, R<3> is H, CH3 or C2H5, R<4> is identical or different R<2> radicals, X<(-)> is halide, methosulphate or tosylate, n is 1 to 4, as bactericides against sulphate-reducing bacteria.
Patent DE-3239485-A1 (DE)
Title: U-shaped connection piece for wall elements
Inventor: TEGTMEIER ROLF
IPC: E04B2/82
Filed: 1982-10-25
Abstract: The invention relates to a U-shaped connection profile constructed in two parts, for partition walls and wall elements. With this connection profile, it is possible to install prefabricated wall elements, even in massive structures, old non-angular rooms and the like, quickly and securely and so as to be heat- and sound-insulating. Customary cutting and mounting work, associated with the production of noise and dust, is dispensed with when using these connection profiles, which are suitable for fastening partition walls both to ceilings and to walls and floors. The connection profile further permits the processing of wall elements with large tolerances in the dimensions of lengths and widths, as well as in the structural thickness of the wall elements, which can be connected in each case non-positively to the connection faces.
Patent DE-3240537-A1 (DE)
Title: Cell for photometric and nephelometric medical investigations
Inventor: PRONATH PETER
IPC: G01N21/03
Filed: 1982-11-03
Abstract: Cell for photometric and nephelometric medical investigations having a top portion of square cross-section as a filling region and a bottom part, which is of tapered design due to the drawing-in of two mutually opposite surfaces, as an optical region, which cell is provided in its optical region with mountings which permit erection of the cell in the photometer or nephelometer, and the cell being provided with webs of T-shaped cross-section on either side in the region of its bottom part, one of the two T-shaped legs being formed approximately centrally at the drawn-in wall of the bottom part and the other T-shaped leg extending parallel to the drawn-in wall of the bottom part of the cell so as to project freely on either side.
Patent DE-3242071-A1 (DE)
Title: Transfer order form
Inventor: GRAESSLE HORST
IPC: B42D15/00
Filed: 1982-11-13
Abstract: Transfer order form for banks, insurance companies, savings-banks and the like, for use by individuals on social security who also make known personal and confidential data to recipients, there being arranged at least on a predetermined part-region of the recipient credit-entry sheet (3) a non-transparent cover which can be detached, preferably by mechanical action, but which thereby brings about a permanently detectable destruction or part-destruction. The cover is therefore pulled off by the recipient and is coated on its rear side, or the recipient credit entry on its front side, at all events in the region of intended use, in such a manner that readable information can be perceived in the region of intended use of the recipient credit entry.