baber/WOPTO huggingface dataset:
Patent DE-3816532-C1 (DE)
Title: Process for purifying flue gas
IPC: B01D53/56
Filed: 1988-05-14
Granted: 1989-09-21
Abstract: A process for purifying flue gas which still contains, in addition to nitrogen oxide, at least one further noxious gas, in particular sulphur dioxide and/or hydrogen chloride. It is known to remove the nitrogen oxide from the flue gas by contact with a sodium chlorite-containing scrubbing liquid in a first stage and then to carry out a desulphurisation in a second stage. In this case, in the first stage, owing to reaction of the sodium chlorite with sulphur dioxide, an excessive sodium chlorite consumption occurs. Moreover, a sodium chlorite-containing waste water arises. The denitration stage is provided downstream of the desulphurisation stage and, possibly, further scrubbing stages. The suspension arising in the denitration stage is added to the scrubbing liquid of the desulphurisation stage. As a result, the sodium chlorite consumption is decreased, the separation efficiency for sulphur dioxide is improved and any loading of the waste water with sodium chlorite is avoided. Flue gas purification in refuse incineration plants and coal- or oil-fired power stations. <IMAGE>
Patent DE-3822123-C1 (DE)
IPC: G01M3/18
Filed: 1988-06-30
Granted: 1990-03-15
Abstract: In a process for maintaining a satisfactory state of a circuit for monitoring pipes, especially for detecting leaks in a heating pipe system, in which currents are sent through rectifier diodes and indicators, the resistance of which changes on the occurrence of moisture, and in which a short-circuit between direct voltages is avoided during the measurement, the monitoring circuit is short- circuited in the periods between the measurements to avoid uncontrollable erosion caused by inductively or capacitively coupled stray currents. <IMAGE>
Patent DE-4037333-C1 (DE)
Title: Adaptor coupling passive components to measuring and test devices - has two=part component receptor between two similar contacting parts, one fixed, other movable horizontally
IPC: G01R1/04
Filed: 1990-11-23
Granted: 1992-02-20
Abstract: An adjustable adaptor, for connecting a range of electronic components (11), e.g. resistors, chokes, transformers, etc., of differing size, rating and pin configurations to measurement/test appts. has a fixed (1) and a sliding (2) contact block operated by pneumatic cylinders (19,22). The test component (110 is located in an interchangeable receptacle (3) with pins (6) projecting to contact pneumatically operated needle contacts (5). Size contact with pins (6) is effected by multiple assemblies of pneumatically operated (19,22) contacts (15a,15b,16a,16b) with projecting solder tags (17) designed to accommodate a wide range of test component (11) dimensions. USE/ADVANTAGE - Reduces checking time of widely differing electronic components as result of universal nature of adaptor. Ensures inductive effects of magnetic components and test instruments cannot interact to generate errors. Three separate contact systems permit pre-magnetisation of components where required independent of voltage and current measuring circuits.
Patent DE-4122012-C1 (DE)
Title: Clip for mat on car floor - includes holder consisting of second spring clip with plate fixed to rear face of first clip
IPC: B60N3/04
Filed: 1991-07-03
Granted: 1992-11-19
Abstract: The anchoring device is for mats laid on floor carpeting. A spring clip is used and a sprung bow is latched home manually to the plate which itself has a holder to anchor the clip to the floor carpeting. The holder should consist of an identical second spring clip (11) whose plate (12') lies on and is fixed to the rear face of the first clip plate (12). Pref. the clamping bow and latching lever (14, 14') are pivoted on the rear part of the plate and the mutually remote ends of the plate and bow are toothed (24, 25; 24'2,5') to stand away at right angles from the plate and bow facing sides and parallel to the swivel axies. USE/ADVANTAGE - Car floor mats, inlays etc. Two mirror identical spring clips are easily and quickly fitted and readily available.
Patent DE-4210859-C1 (DE)
IPC: H01L21/762
Filed: 1992-04-01
Granted: 1993-06-09
Abstract: A process is disclosed for producing a monocrystalline silicon layer separated by an embedded insulating layer from an underlying silicon substrate. Besides the process steps carried out in a SIMOX process which lead to a SIMOX wafer structure with an embedded SIMOX oxide layer and an overlying silicon layer, the following steps are provided: generating a dielectric layer on the SIMOX silicon wafer and/or a silicon substrate wafer, wafer bonding these wafers so they are bonded to each other by their front sides; applying an etching protection layer on the silicon substrate wafer and etching the back of the SIMOX silicon wafer down to the embedded SIMOX oxide layer.
Patent DE-4211792-C1 (DE)
Title: Continuous chipboard mfr. press - has upper and lower plates applying pressure to rollers running over endless steel strips
IPC: B30B5/06
Filed: 1992-04-08
Granted: 1993-05-06
Abstract: The press consists of a lower- and an upper-plate (3) and endless steel strips (1) which run round the upper- and the lower-plate. Rollers which also run round the press plates are placed between the plates and the steel strips (1). The surfaces of the plates, which come into contact with the rollers consists of a layer of hard material which has been welded on by laser welding. ADVANTAGE - Long life of the press plates. Simple method of manufacturing the plates.
Patent DE-4219710-C1 (DE)
Inventor: FUSS FRITZ HELMUT DIPL ING
IPC: E05B47/00
Filed: 1992-06-16
Granted: 1993-12-23
Abstract: A securing/desecuring device for an escape-door lock, with an electromagnet (13) and with a securing lever (14) cooperating with the latter, is described. When the magnet is in the live state, the securing lever (14) is held in its blocking position. A driving arm (15) is arranged fixedly in terms of rotation on a handle follower (11) and cooperates with a two-armed securing lever (14). One arm of the securing lever (14), pivotable axis-parallel to the handle follower (11), is designed as the armature (16) of the electromagnet (13), and the other arm has a stop (18) for engagement with the driving lever (15). <IMAGE>
Patent DE-4226549-C1 (DE)
Title: Position detection device using magnetic proximity switches - has housing wall with adjacent windows receiving respective switches fitted to rear circuit board
IPC: G01B7/00
Filed: 1992-08-11
Granted: 1993-08-26
Abstract: The position detection device has magnetic proximity switches (16) pref. having reed contacts adjacent one another within a housing (1) and separated via intermediate screening plates (12), so that each is operated in turn by a switch magnet, dependent on the position of the latter. One wall of the housing (1) has a series of spaced windows (7) through which the respective proximity switches (16) are fitted, to bring each into contact with a pair of contact clips provided by a circuit board (13). USE/ADVANTAGE - Simple installation and fitting for monitoring position of lift etc.
Patent DE-4226982-C1 (DE)
Inventor: WIRTZ JOHANN-HUGO
IPC: C21B15/02
Filed: 1992-08-14
Granted: 1993-12-09
Abstract: A metallothermal reaction mixture consisting of a metal oxide, a metal that is more electronegative than the metal of the metal oxide and, optionally, further additives, the individual components being present in the form of small particles, is prepared in which at least 20% by weight of the metal oxide is present in the form of spherical or at least approximately spherical particles ranging in size from >0 to 3.0 mm. A stabilization and evening out of the reaction is achieved by the invention composition of the reaction mixture.
Patent DE-4228442-C1 (DE)
Title: Electroless nickel@ coating of metallised ceramic - using treatment to activate only the metallised areas and avoid unwanted coating of ceramic areas
Inventor: BINDIG REINER
IPC: C04B41/89
Filed: 1992-08-26
Granted: 1994-02-03
Abstract: Method of electroless Ni coating a partially metallised ceramic surface which may be blackened by the presence of finely dispersed W or Mo particles, consists of (a) cleaning in an aqueous solution whose pH is below 10 and which contains less than 10 ppm fluoride ions; (b) activating the cleaned surface in an aqueous solution of pH 1-6 which contains PdCl2, halide ions and hydroxycarbonic acid and less than 10 ppm fluoride ions; (c) treating the activated ceramic with a further aqueous solution containing halide ions and/or hydroxycarbonic acid and a pH of below 1 and finally (d) electroless Ni coating in Ni bath. USE/ADVANTAGE - Producing integrated circuit boards. Uniform coating on the metallised surface areas is produced without coating the ceramic areas.
Patent DE-4228558-C1 (DE)
Inventor: SCHUERFELD HORST
IPC: B23B31/00
Filed: 1992-08-27
Granted: 1994-02-10
Abstract: A clamping device for coupling base holders or machine spindles to cutting tools or tool holders has two expanding spanners (22, 24) which grip from behind with radially outwards projecting clamping claws (32, 40) clamping shoulders (20, 22) arranged inside the machine spindle and tool holder (12). Two spanners (22, 24) are mutually linked in their central area by means of an expanding member (26), forming a clamping block. In the contracted state, the clamping block has an outer diameter which is smaller than the smallest inner diameter both of the machine spindle and of the tool holder.
Patent DE-4234337-C1 (DE)
Title: Demodulator for FSK signals - uses digital comb filter for dividing input signal into partial signals of differing frequency
Inventor: GOECKLER HEINZ DR ING
IPC: H04L27/148
Filed: 1992-10-12
Granted: 1993-12-23
Abstract: The demodulator has a digital filter (F) which divides the frequency shift keying signals into partial signals (Y1, Y2) of different frequency. Th frequency shift keying signals are fed to the digital filter via an A-D converter, the filter comprising a comb filter which uses a sampling frequency related to the frequencies of the obtained partial signals by a defined equation. Pref. a polyphase filter is used, with the output signals having a sampling frequency which is half that of the input signal (X1). ADVANTAGE - Reduced complexity relative to previous bandpass filter demodulator for separation of FSK frequencies.
Patent DE-4237206-C1 (DE)
Title: Cleaning machine for receptacles - has at least one bearer arranged on circulating feed chain for accommodation of cleaning device
Inventor: WITTMANN NORBERT
IPC: B08B3/14
Filed: 1992-11-04
Granted: 1993-10-21
Abstract: The cleaning device is formed as scraper unit located on a slide plate (6) of the receptacle cleaning machine with at least one withdrawal device (10) for the removed impurities. The withdrawal device runs crosswise to the feed direction (4) of the receptacle (3) and comprises slots running parallel to the receptacle feed direction in the slide plate (6) for the receptacle (3). Beneath the slots is a channel. The slots are arranged centrally between adjacent receptacles. The withdrawal device (10) is arranged in the end area of at least one dip bath (11). The scraper unit has a central scraper displaceably arranged in contact with the slide plate (6) and two lateral, displaceable scrapers in contact with a side wall of the machine. USE/ADVANTAGE - A receptacle cleaning machine which completely evacuates impurities without prior drainage of bath fluids.
Patent DE-4240734-C1 (DE)
Inventor: SCHNITZLEIN MARKUS DIPL PHYS
IPC: H04N1/028
Filed: 1992-12-03
Granted: 1994-03-31
Abstract: In the optical part of a scanning device for mechanical optical character recognition, a diaphragm (2') is provided for an objective (1) for imaging an original which is to be scanned line by line, on an optical CCD sensor (3). In this case, the diaphragm (2') has a diaphragm opening (4' and 4'' respectively) which extends in a direction running orthogonally to the CCD sensor (3), the form of which opening deviates from a circular form of a diaphragm opening. <IMAGE>
Patent DE-4330159-C1 (DE)
Title: Steering valve with a sealed centre
Inventor: SPILLNER ROBERT DIPL ING
IPC: B62D5/083
Filed: 1993-09-07
Granted: 1994-11-10
Abstract: In order to achieve a direct correspondence between an input force of an operator on a steering valve and a working pressure in the actuator, a steering valve with a sealed centre and intended for supplying an actuator with hydraulic pressure, which valve comprises an input shaft 11, an output shaft 12, a torsion rod 17, which is connected by one end to the input shaft 11 and by the other end to the output shaft 12, and a valve sleeve 18 surrounding the input shaft 11, is further developed to such an extent that the valve sleeve 18 is connected to the output shaft 12 in a manner such that it can be rotated, counter to a restoring force, around a basic position in an angular region in both directions, relative to the output shaft 12 around the common axis, and that an actuating element 20 is arranged on the steering valve 1, which actuating element exerts a torque on the valve sleeve 18, which torque acts in the same direction in order to rotate the input shaft and is in a proportional ratio to the pressure acting in the actuator. <IMAGE>
Patent DE-4331402-C1 (DE)
Title: Water table
Inventor: EBELING HELGE
IPC: B23K37/04
Filed: 1993-09-15
Granted: 1995-01-19
Abstract: The invention relates to a water table for machining workpieces, in particular for flame-cutting machines, consisting of a water basin and devices for regulating the water level as well as work rests. In order to create a water table which can be assembled quickly and easily in any length at the customer's and which is always based on the same basic modular construction, the water basin consists of modular sections (10, 11, 12, 13) which can be joined together in the longitudinal direction, and the devices for regulating the water level consist of combinable displacement-chamber portions (22, 23, 24, 25) which are provided in the sections (10, 11, 12, 13) and form a displacement chamber which is attached via connectable passage sections (27, 28, 29, 30) to a gas-exchange module for lifting and lowering the water level by feeding and discharging a displacement gas. <IMAGE>
Patent DE-4334046-C1 (DE)
Title: Electrical switch
Inventor: MUELLER ANDREAS
IPC: H01H23/16
Filed: 1993-10-06
Granted: 1995-03-16
Abstract: An electrical switch is proposed which is composed essentially of a housing, the electrical contact parts which are arranged therein, and an operating element which is mounted on the housing in a moving manner. A transmission system is arranged, in a prestressed manner, between the operating element and a moving electrical contact part in order to drive the moving electrical contact part. In order to obtain a transmission system which is of particularly simple design and can thus be manufactured and assembled (installed) cost-effectively, the transmission system (which consists of at least one compensation element which can be deformed elastically and of a drive element which is of rigid design) is constructed integrally.
Patent DE-4400393-C1 (DE)
Title: AF push-pull output stage
Inventor: WIETZKE JOACHIM DR
IPC: H03F3/30
Filed: 1994-01-08
Granted: 1995-03-09
Abstract: The invention relates to an AF push-pull output stage having two first transistors (T1, T2) and two second transistors (T3, T4). In the lower and medium driving range, the first transistors (T1, T2) which are supplied with reduced operating voltages (U1, U2; U1', U2') are active, while the second transistors (T3, T4) are inactive. Only as the AF amplitudes increase do the second transistors (T3, T4) which are supplied with unreduced operating voltages (U3, U4; U3') become active. As a result, the power loss and hence the undesired evolution of heat remain low in the lower to medium driving range. <IMAGE>
Patent DE-4403465-C1 (DE)
Title: Variable effect torsion spring
Inventor: LANGE WILHELM DR ING
IPC: F16F3/02
Filed: 1994-02-04
Granted: 1995-07-27
Abstract: The torsion spring (2) has an inner main spring element (5) and an outer secondary spring element. The two springs are joined at one end by a limited torque coupling while the one end has the two connecting flanges (3,4) for the spring assembly. The limited torque coupling is made by heat shrinking one section over the other. The connecting flange ends have flanges to prevent axial movement and friction layers can be fitted between the concentric spring elements. Likewise cooling fluid can be circulated between the spring elements which are made of the same material of different materials.
Patent DE-4406869-C1 (DE)
Title: High pressure cleaning device
Inventor: HARTMANN LOTHAR
IPC: B08B3/02
Filed: 1994-03-02
Granted: 1995-05-24
Abstract: The cleaning device comprises a valve pistol (2) and high pressure pipe integrated in a housing which also contains a drive motor, pump and bypass valve assembly. When the valve pistol is closed the pump continues to run and a small amount of cleaning fluid is conveyed in circuit through the bypass valve. A leakage flow port (5) which remains open when the valve pistol is closed has a very high flow resistance so that when the pistol is closed a small leak of cleaning fluid always flows outwards and a corresponding amount of fluid flows along in the pump on the suction intake side. The leakage flow port is permanently opened independent of pressure and cannot be closed by hand.
Patent DE-4415440-C1 (DE)
Title: Raking device in sedimentation tanks having a bottom scraper with wear indicator
Inventor: BOCKHOLT ROLF DIPL ING
IPC: B01D21/18
Filed: 1994-05-03
Granted: 1995-05-04
Abstract: In a raking device in sedimentation tanks having a bottom scraper arranged over the tank bottom, the invention proposes a signal device whose lower end is arranged above the tank bottom but beneath the permissible wear limit of the bottom scraper, and which has a lower wear layer; after this has been worn away to a presettable wear limit, the signal device is activated. This enables reliable warning to be given of an undesirable wear of the bottom scraper.
Patent DE-4419363-C1 (DE)
Title: Integrated semiconductor device with thyristor function
Inventor: KUGELMANN ADOLF ING GRAD
IPC: H01L27/082
Filed: 1994-06-03
Granted: 1995-08-10
Abstract: The semiconductor device has an N-trough (1) on a P-substrate (2). The N-trough contains an inner P-doping zone (3) in which an inner N-doping zone (4), having a metallisation (5) built on it, is completely embedded. At least one outer N-doping zone (6) and one outer P-doping zone (7) are embedded in the N-trough spaced from the inner P-doping zone.  An outer metallisation (8) is built on the outer N- and P- doping zones a strongly n-doped layer (9) is arranged under the inner and outer doping zones. The outer P-doping zone is arranged beside the outer N-doping zone and closer to the inner P-doping zone. A contact end is arranged on the inner P-doping zone.
Patent DE-4421203-C1 (DE)
Title: Machine frame for belt grinding machines
Inventor: GELSZINNUS WERNER
IPC: B24B21/20
Filed: 1994-06-17
Granted: 1995-05-11
Abstract: In the case of a machine frame for belt grinding machines with a motor drive having a drive disc, with two deflection rollers and with an endless grinding belt running round via the deflection rollers and the drive disc, one of the deflection rollers being designed as a tension roller which can be adjusted transversely to its axis of rotation, it is provided that each deflection roller (4) is adjustable transversely to its axis of rotation, is pivotable together with its axis of rotation about the latter and is axially adjustable with its axis of rotation, and can be locked in each position. <IMAGE>
Patent DE-4430960-C1 (DE)
Title: Milling head for removing mortar etc. from masonry or brickwork
Inventor: RABE JUERGEN
IPC: B23D61/00
Filed: 1994-08-31
Granted: 1996-03-21
Abstract: The main body (10) of the milling head is bar shaped. A first end section (12) is for fixing in the rotary head of a tool. A second section (14), not contained by the rotary head has areas (A, B, C) of differing cross sectional shape in the milling head's axial direction, with at least two outer edges (K1-K8) each.  The outer parts of the milling head's end surfaces, positioned in the rotary direction, has a coating of extremely wear resistant, granular, angular material applied by a galvanic or ceramic process. The coating is applied to a ceramic or metal support plate (18).
Patent DE-4432431-C1 (DE)
Title: Microwave doppler module for velocity measurement or movement detection
Inventor: SCHUBERT RICHARD DR
IPC: H04B1/12
Filed: 1994-09-12
Granted: 1995-11-16
Abstract: The microwave doppler module has a microwave oscillator (OSZ) coupled at its microwave signal output to a homodyne receiver (E). A signal representing the oscillator noise is tapped off and fed to an amplifier (V), before subtraction from the signal at the output of the homodyne receiver, to provide a noise-free doppler signal (Sd).Pref. a capacitor (C) and/or an isolator (I) is inserted between the microwave signal output of the oscillator and the homodyne receiver, the noise signal tap-off coupled to the amplifier via an inductance (SP).
Patent DE-4443516-C1 (DE)
Title: Numbering accessory for printing machines
Inventor: KUSCH HANS-JUERGEN
IPC: B41F17/00
Filed: 1994-12-07
Granted: 1996-04-11
Abstract: The accessory incorporates a shaft (2) on which one or more numbering arrangements are mounted. A coloured ink application arrangement (3) with rollers (4) is provided and a switch mechanism (5). The accessory can be moved in on telescopic rails (6) against the printing cylinder (7). The accessory is moved by a control shaft (8) using a first lever.  A mechanism (8. 9) is provided which feeds-in the coloured ink application arrangement (3) at the same time as the numbering accessory is fed-in. The ink application arrangement is moved on the control shaft by a second lever. The ink applicator swings like a see-saw in the housing of the numbering accessory.
Patent NL-1022461-C1 (NL)
Title: Provision is for preventing growth of micro-organisms and bacteria, such as legionella, in fire hose reels comprises three-way coupling with three coupling points, one of which is connected to feeding water mains
Inventor: THIMISTER MARCEL MELCHIOR SOPH
IPC: A62C33/02
Filed: 2003-01-22
Granted: 2004-07-26
Abstract: The provision for preventing the growth of micro-organisms and bacteria, such as legionella, in fire hose reels comprises a three-way coupling (D) with three coupling points (1,2,3), one of which is connected to the feeding water mains (4). Both the reel (5) with the fire hose as well as the spray mouthpiece (5b) of the fire hose are both connected to the other coupling points of the three-way coupling. The coupling point to which the reel with the fire hose is connected is provided with a temperature meter with a control unit (T/S). The coupling point to which the spray mouthpiece is connected is provided with a circulation pump which is controlled by the temperature meter in combination with the fact that the spray mouthpiece is connected to the three-way coupling.
Patent NL-1023500-C1 (NL)
Title: Self propelled machine, especially mower, has endless tracks and low centre of gravity
Inventor: VERHEIJ DICK
IPC: A01D34/86
Filed: 2003-05-22
Granted: 2004-06-22
Abstract: The machine frame is fitted with endless tracks on opposite sides, the tracks extending over essentially the entire length of the frame. The centre of gravity for the machine is located in the centre of the imaginary rectangle defined by the tracks when the machine is viewed from above. The centre of gravity is located close to the ground.