baber/WOPTO huggingface dataset:
Patent DE-3305354-A1 (DE)
Title: Process for anodically oxidising aluminium with pulsed current and its use as printing plate base material
Inventor: GILLICH THOMAS N
IPC: C25D11/06
Filed: 1983-02-17
Abstract: The process for anodically oxidising plate-type, foil-type and strip-type material made of aluminium or its alloys is carried out in an aqueous electrolyte containing at least one organic acid; optionally, a mechanical, chemical and/or electrochemical graining can be carried out prior to the oxidation. The acid is a monomeric phosphonic, sulphonic or at least tribasic carboxylic acid or a monomeric phosphate still containing at least one acidic functional group, such as phytic acid, 2-ethylhexanephosphonic acid, tridecylbenzenesulphonic acid, dinitrostilbenedisulphonic acid, dodecylnaphthalenedisulphonic acid, dinonylnaphthalenedisulphonic acid, di-n-butylnaphthalenedisulphonic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenediaminepentaacetic acid or a mixture of two or more of these compounds. In addition to these compounds, the electrolyte may also contain an inorganic acid such as phosphoric acid. The current used in this process is pulsed (''pulse plating''). The products of the process are preferably used as base material in the production of printing plates carrying a radiation-sensitive layer.
Patent DE-3305509-A1 (DE)
Title: Optical coin-testing device
Inventor: SCHOENE SIEGFRIED
IPC: G07D5/00
Filed: 1983-02-14
Abstract: What is proposed is an optical coin-testing device which has a radiation source for irradiating a coin and a radiation receiver receiving the radiation reflected from the coin. To detect the degree of brightness of the particular coins, there is a plurality of radiation receivers which are arranged in different angular sectors of the reflected radiation. <IMAGE>
Patent DE-3307425-A1 (DE)
Title: Welding head for internal lining of circular cylindrical cavities of metallic parts
Inventor: FUEWESI PETER
IPC: B23K9/28
Filed: 1983-03-03
Abstract: The carrier 40 of a welding head 25 for the internal lining of circular cylindrical cavities is rotated during welding. For cooling, it has an outer coaxial annular cooling channel 120, covered by a sealing ring 121 which is slidingly set on it and does not revolve with it. The connections of external cooling water feed and drain ducts 132, 134 open into the cooling channel 120 at the sealing ring 121. <IMAGE>
Patent DE-3309967-A1 (DE)
Title: Floor-cleaning machine
Inventor: GARNICH ROLF DR PHIL DIPL ING
IPC: A47L11/40
Filed: 1983-03-19
Abstract: A floor-cleaning machine has a drive assembly serving for the forward drive on the floor and a rotating brush arrangement which can be covered with liquid from a supply container (11). The drive assembly (4) is a set which can be removed as a unit from the housing (1) of the floor-cleaning machine. The brush arrangement (6) is fastened in an adjusting device (10) by means of which it can be swivelled, after a short vertical lift, into a position which is inclined relative to the forward drive direction. The supply container (11) is filled via a folding bag (12). A modular operating unit (31) with ergonomically designed handles (32) is provided. <IMAGE>
Patent DE-3316728-A1 (DE)
Title: Motor vehicle with two engines
Inventor: KLEIN ALBERT
IPC: F02B73/00
Filed: 1983-05-07
Abstract: The invention relates to a motor vehicle with two engines in which, in order to save expensive fuel and to reduce environmentally harmful exhaust gases, the second engine is designed for a power output smaller than or at most equal to that of the first petrol- or similarly driven engine and is constructed as a hydrogen-powered rotary piston engine, preferably a Wankel engine, both engines acting on a common shift clutch with shift transmission connected on the output side or on a common automatic transmission and in addition having common operating controls at the driver's seat, being connected to a common generator and to a common circulating cooling system and being connected by way of a reverse and matching transmission to the shift clutch or the automatic transmission, an electronic reversing device being provided which as a function of the load moment by actuation of clutches in the reverse and matching transmission and switching the ignition on and off keeps only the hydrogen-powered engine in operation at low drive loads and at higher loads first starts the petrol-driven engine and then shuts off the hydrogen- powered engine.
Patent DE-3317089-A1 (DE)
Title: Detailed designs and uses of angled-shaft rotary piston machines as compressors, motors or, with the aid of a jet-pump type valve, as a continously variable pump
Inventor: INGELHEIM PETER GRAF VON
IPC: F01C3/02
Filed: 1983-05-10
Abstract: The invention relates to detailed designs and uses of angled-shaft rotary piston machines as compressors, motors or, with the aid of a jet-pump type valve, as a continously variable pump. The shapes of the rotors, and the effective surfaces on the rotors are preselected in such a way, that, as the effective surfaces of the one piston move along the effective surfaces of the other piston, the contact surfaces of the effective surfaces are always formed by radial straight lines. In addition, various embodiments of drives to synchronise the rotors are provided. When said machines are used as compressors or expansion machines for a compressible fluid, the ducts, which pass the fluid from one chamber to another chamber, are arranged in such a way that the clearance loss remains low. If such machines are used as a constant delivery pump, the number of pistons is increased in such a way, that the rotors themselves become the drive. With the aid of a particular jet-pump type valve, it is possible to vary the throughput of a constant delivery pump and, in the process, recover energy on the pump suction side. Further applications are possible as a result of said valve.
Patent DE-3324483-A1 (DE)
Title: Arrangement for soft braking of moving parts
Inventor: SCHMIDT PETER DIPL ING
IPC: H02P3/06
Filed: 1983-07-07
Abstract: An arrangement and a method are indicated for soft and jolt-free braking of preferably longitudinally-moving, motor-driven masses such as sawing machines or carriages of grinding machines with a one-quadrant drive, having a braking characteristic similar to braking by means of a four-quadrant drive. This is achieved by a power transistor being arranged in the brake circuit, for controlling the motor, which power transistor is pulsed via a clock generator with a variable pulse sequence and/or pulse magnitude, regulated braking being achieved in a further version by means of an actual/desired comparison via a microprocessor.
Patent DE-3325349-A1 (DE)
Title: Method and circuit arrangement for monitoring and restoring the synchronous running of data encoding devices
Inventor: GLITZ EKKEHARD ING GRAD
IPC: H04L9/12
Filed: 1983-07-14
Abstract: To detect the various causes of transmission errors, the method according to the invention utilises the equal statistical distribution of the binary character combinations in encrypted texts and monitors the encrypted texts to be sent out and the encrypted texts received for their intra-structural composition or statistical distribution of the binary character sequences. <IMAGE>
Patent DE-3326305-A1 (DE)
Title: Device for collecting dog excrement and other soiling
Inventor: SCHAFFNER GEB MEIER
IPC: E01H1/12
Filed: 1983-07-21
Abstract: In a device for collecting dog excrement and other soiling, two elongate scraper parts are inserted into opposing slits near to the bag aperture and, in order to collect the excrement, are folded around the edge of the bag aperture in such a manner that their scraping ends, together with the excrement, come to rest inside the bag. The bag can then be closed by means of a draw-string or the like, and the odour can largely be eliminated by an odour-absorbing medium.
Patent DE-3328872-A1 (DE)
Title: Automatic feed device for individually separating and feeding sheets
Inventor: MATSUMOTO HIROAKI
IPC: B65H3/52
Filed: 1983-08-10
Abstract: An automatic feed device for sheets, which is suitable for a visual recording machine, such as a facsimile machine or a copier, and especially an automatic feed device for individually separating a plurality of sheets and for automatically feeding the sheets in a sequence, is described. The automatic feed device is distinguished by a rotatable element which can be rotated in the direction of feed of the sheets, a counter-element which is arranged facing the rotatable element, a conveying device which is located behind the rotatable element in the conveying direction and is rotatable at a circumferential speed which is greater than the circumferential speed of the rotatable element, and an additional separating element against which the sheets are pressed by a tractive power which results from the difference between the circumferential speeds of the conveying device and the rotatable element.
Patent DE-3329022-A1 (DE)
Inventor: RATCLIFFE MICHAEL JOHN
IPC: G06F11/10
Filed: 1983-08-11
Abstract: Data storage apparatus consisting of an array of RAM chips, with Hamming code checking for detecting double-bit errors. Address signals are fanned-out to the chips by way of driver circuits. Each driver circuit distributes an address bit to only two columns of chips (or in some case, just one column), so that is one of the driver circuits fails, no more than two chips in each row will be affected. Hence, no more than two bits in any data word will be in error, and this can be detected by the Hamming code.
Patent DE-3333815-A1 (DE)
Title: Knee endoprosthesis
Inventor: HAPPEL MARTIN WILHELM DR DR
IPC: A61F2/38
Filed: 1983-09-19
Abstract: The invention aims to simplify operation techniques with a novel system and to improve the durability and strength of the endoprosthesis anchorage and the tribological properties of the knee endoprosthesis. Femoral stem (1) and tibial stem (2) can be implanted separately before the completely pre-mounted joint part (3) is adapted to these stems with wedge-shaped mountings (4, 5) and secured by screws (6, 7). If there is only a small amount of resection, there is thus adequate space available for implantation. The joint kinematics of the endoprosthesis is virtually matched to that of the natural knee with flexible cruciate ligaments (8, 9), the joint surfaces (10, 11) of the runners (12, 13) always bearing the entire load (punctiform or linear contact is avoided) and separating the rotating movement of the condyles (14, 15, 40) from the linear movement at the tibial plateau (16). This enhances the technical service life of the knee endoprosthesis by improvement of the tribological relationships. In conjunction with the guide rails (17, 18) on the tibial plateau (16) the cruciate ligaments (8, 9) control rotation of the lower leg, just like those in a natural knee. <IMAGE>
Patent DE-3340747-A1 (DE)
Title: Nine men's morris set suitable for travel and the blind
Inventor: GUTWENIGER OTTO
IPC: A63F3/00
Filed: 1983-11-10
Abstract: Blind people can conveniently use this game, since the pieces, which are provided with steps, slide securely in guide tracks and engage into the playing board at the intersections and at the decisive points, the piece being guided by a single finger and the finger being able to identify, by a projection in a recess in the piece, whether the piece in question is white or black. This game is also suitable for travelling, since the pieces cannot slip and no playing table is needed. The pieces are so designed that they can be plugged into one another so that they require little space for storage, which is provided in holes in the playing board. If the playing board is made from wood, a new, circular layout of the lines in place of the familiar rectangular playing plane is advantageous for production, turning instead of milling, and also a saving in material.
Patent DE-3345346-A1 (DE)
Inventor: BOJARSKI RAINER
IPC: G03C11/24
Filed: 1983-12-15
Abstract: Process intended both for the utilization and the elimination of all materials involved during a photochemical treatment of films. It enables to recover silver, plastic and paper. The exposed and developed films are subjected to an enzyme treatment, the silver contained in the gelatin being recovered by a thermal process. The fixing salt solution which is desilverized during the electrolytic treatment is supplied, together with the developer solution, the waste water of the enzymatically treated film material and other photochemical liquids, to a common waste water purification unit for carrying out a catalytic oxidation. The industrial water thus obtained may be taken to a sewer and to a biological clarification plant.
Patent DE-3346008-A1 (DE)
Title: Arrangement for mounting agricultural appliances on traction engines
IPC: A01B59/046
Filed: 1983-12-20
Abstract: Arrangement for mounting agricultural appliances on traction engines or tractors in the middle region of the latter, there being attached to the tractor, on one side, preferably the right-hand side, a basic frame, to which the lifting-out device for the especially freely supported agricultural appliance, preferably a maize chopper, can be fastened by means of at least one quick-coupling device. <IMAGE>
Patent DE-3347244-A1 (DE)
Title: Process for operating a coke oven battery
Inventor: HOLZ WILHELM DR
IPC: C10B21/20
Filed: 1983-12-28
Abstract: In a process for operating a coke oven battery in regenerative flue change, in which the heating takes place indirectly via the heating flues with rich gas or lean gas and the adjustment of the heating is carried out with adaptation to the state of cooking of the oven charge by regulating the heating power, it is provided that the temperature difference  DELTA  T between the wall of the coke oven chamber and the charge at the end of the cooking time is determined and utilised as a control variable for the heating of the coke oven battery, by reducing the heat supply when a known optimum value (set value) of preferably  DELTA T = 15 to 20 DEG C, indicating the end of cooking, is exceeded, and is increased if  DELTA  T falls below the set value.
Patent DE-3401230-A1 (DE)
Title: Seat understructure having a running-rail arrangement
Inventor: ENGELS BERND
IPC: B60N2/06
Filed: 1984-01-14
Abstract: The seat understructure consists largely of a running-rail arrangement which comprises guide rails and slide rails and whose slide rails are arranged on two longitudinal sides of the seat and are connected to one another via at least one cross strut. A threaded spindle, which penetrates a spindle nut connected to the guide rail, is mounted in spindle bearings in each case on the slide rails for the purpose of their longitudinal displacement. In the event of an accident, in order to keep away the high forces resulting therefrom due to the mass inertia, in particular from the spindle, the spindle bearings are connected to fenders which at least partially surround the cross strut.
Patent DE-3407448-A1 (DE)
IPC: A63D7/00
Filed: 1984-02-29
Abstract: Pendulum ninepins set with a perch-like pendulum upright (2) provided with a traverse (3), a ball (5) secured thereto by means of a string (4), a mounting surface (6) for the ninepins (7) and a stop fence (8) surrounding at a certain distance the mounting surface, the latter being configured as a beam star (9); at the ends of the beam, there are provided socket-like mounting platforms (10). A foot element (11) receives the pendulum upright (2) and supports it, the foot element (11) being on one hand connected to the beam star (9) and on the other hand securable with the pendulum upright (2).
Patent DE-3407772-A1 (DE)
Title: Recoilless high-pressure/low-pressure weapon
Inventor: BONGERS HERMANN DIPL ING
IPC: F41A1/08
Filed: 1984-03-02
Abstract: In order to prevent the undesirable recoil forces in the case of recoilless weapons and in order to reduce the scatter in the initial speed V0 of the round, the propulsion charge is arranged in a thick-walled propulsion charge container which has gas outlet openings in the form of nozzles in the firing direction and to the rear. The external diameter of this container is kept smaller than the adjacent region of the firing barrel and is supported displaceably in the axial direction. It is connected to the round by means of flaps which can be unlatched. Located in front of the rear nozzles in the propulsion charge container is the detonating charge so that, during ignition of the propulsion charge (firing), the propulsion charge container is moved a short distance in the direction of the round and at the same time unlatches the flaps from the round. The round and the propulsion charge container are separated from one another in this way without forces at the same time being transmitted to the firing barrel (weapon). The powder gases flowing out of the propulsion charge container at the front propel the round out of the firing barrel. Since the combustion gases have to pass through the nozzles in the propulsion charge container before flowing out, regulation of the erosion is achieved.
Patent DE-3409189-A1 (DE)
Inventor: OTT GUENTHER DIPL CHEM DR
IPC: C08G59/40
Filed: 1984-03-14
Abstract: This application discloses water-dispersible binders which are based on modified epoxide/amine adducts and are the reaction products of A. polyepoxides having an epoxide equivalent greater than 1 and a mean molecular weight  &upbar& Mn of 140 to 5,000 with B. diphenylolalkanoate esters and C. amines.
Patent DE-3410293-A1 (DE)
Title: Electric vehicle
Inventor: GOLDGRABE RICHARD
IPC: B60L11/18
Filed: 1984-03-21
Abstract: The electric vehicle uses a rotary current machine (13), preferably a cage-rotor asynchronous machine, which is supplied from a direct voltage battery (12). The direct voltage is transformed upwards via a DC/DC converter (11) and converted in a power converter (6) to a multi-phase alternating voltage. The rpm and/or slip of the rotary current machine (13) are detected in an actual value computer (9) and used as control variable of a control circuit (1-5, 8). The power converter (6) and the DC/DC converter (11) can also be operated in the reverse direction so that, without an additional charging device, the battery (12) can be charged from the mains (15) or, in the case of regenerative braking, by the alternating current machine (13) (single figure). <IMAGE>
Patent DE-3414523-A1 (DE)
Title: Method and circuit arrangement for cancelling crosstalk and/or echo signals
Inventor: SCHENK HEINRICH DR ING
IPC: H04B3/23
Filed: 1984-04-17
Abstract: In an adaptive crosstalk and/or echo cancelling circuit located on the four-wire side in parallel with a hybrid circuit and having a variable filter and a cancellation signal logic element, the cancellation signal is formed depending on the - if necessary averaged - difference between the discriminator output signal formed after the signal cancellation and following adaptive signal equalisation and the discriminator input signal, by setting the filter coefficients in the case of a significant - if necessary averaged - difference between the discriminator input signal and the discriminator output signal according to the cancelled received signal - or even only its sign - and in the case of an insignificant - if necessary averaged - difference according to this difference - or even only its sign. A compromise equalisation of the received signal is carried out after the crosstalk and/or echo cancellation. <IMAGE>
Patent DE-3416192-A1 (DE)
Title: Method for securing fins on electric tubular heating elements
Inventor: CZEPEK GUENTER
IPC: B21C37/26
Filed: 1984-05-02
Abstract: Metal strip wound helically onto tubes and tubular heating elements is tensioned at the beginning of the turn and joined by welding in such a way that it rests firmly on the round tube.
Patent DE-3417686-A1 (DE)
Title: Valve for opening and/or shutting off
Inventor: STRATE WOLF-PETER
IPC: F16K47/02
Filed: 1984-05-12
Abstract: As is known, valves are required in pipe conduits in order to be able to interrupt the delivery of water along the pipe conduit if required. For this purpose, the valve has a shut-off member. In practice, considerable shock pressures occur on both sides of the shut-off member when the pipe conduit is shut off and these can lead to serious damage, e.g. bursting of the pipe conduit or the valve or even damage to buildings. In the invention, a relief path is provided parallel to the shut-off member and this is opened by means of an external control means when the shut-off member moves into the closing seat. By virtue of a lead, the relief path is opened shortly before the shut-off member reaches its closing seat. This counteracts the occurrence of the damaging shock pressures.
Patent DE-3421300-A1 (DE)
Inventor: BRAUN GERO DR
IPC: C07B63/00
Filed: 1984-06-08
Abstract: 1. A process for the isolation of trioxane by treatment of a dilute aqueous formaldehyde-containing solution with an extracting agent, which comprises the solution which is obtained being subjected (1) after completion of the reaction of the formaldehyde to give trioxane, or (2) during this reaction, to the following process steps : (a) treatment and, by this means, extraction of the aqueous trioxane solution with an extracting agent in amounts of 1-10 kg/kg of trioxane solution, where the extracting agent (a1 ) is during the treatment in the supercritical state in a temperature range between the critical temperature and 200 degrees C and in a pressure range between the critical pressure and 1000 bar, and thus forms a supercritical solution, or (a2 ) is during the treatment in the subcritical state in the form of a liquid gas in the temperature range between the critical temperature and 0 degree C and in the pressure range between 5 and 500 bar above the vapor pressure of the liquid gas, and forms a subcritical solution, and the solutions (a1 ) and (a2 ) contain trioxane and extracting agent together with water and formaldehyde which have been carried over, (b) separation from the extracting agent of the substances which are dissolved in the extracting agent in one or more stages by (b1 ) reducing the pressure and/or the temperature (b2 ) raising the temperature in such a manner that the pressure and temperature are always still above the relevant critical values, or (b3 ) lowering the temperature and/or the pressure into the subcritical range, where the solutions are separated into the extracting agent and into a mixture of concentrated tioxane, formaldehyde and water, which are drawn off separately from the separator during the separation step.
Patent DE-3422066-A1 (DE)
Inventor: BAUM MARCEL DIPL ING
IPC: A61M16/00
Filed: 1984-06-14
Abstract: A ventilation system with positive and negative ventilation pressures controllable through a control unit is to be improved with respect to its adaptability, in particular in the generation of high pulse repetition frequencies above the natural breathing frequency. A gas transport element is provided in connection with a ring line which contains an inhalation valve in an inspiration branch and an exhalation valve in an expiration branch. The desired improvement is obtained by the fact that the gas transport element is arranged in the ring line with constant direction of delivery. By alternate control of the inhalation valve and exhalation valve in a closed system inspiration and expiration pulses are produced. In addition, a controllable valve unit is indicated in which the inhalation valve and the exhalation valve are actuated as diaphragm valves by combined injector and ejector units of low inertia.