baber/WOPTO huggingface dataset:
Patent DE-4009742-A1 (DE)
Title: Coolant water stripper device for rolled prodn. - has line of water stripper dice arranged behind cooling tube
Inventor: GRUNWALD HANS-JUERGEN DIPL ING
IPC: B21B45/02
Filed: 1990-03-27
Abstract: Device for removing coolant water from rolled material consists of arranging two to six water stripped dies (3 to 8) behind the last cooling tube (1). The spacing (a) between the tube (1) and first die (3) is at least as big as the smallest diameter (d1) of cooling tube diffuser (2). The subsequent spacings (b to f) are at least 1.25 times the diameters (d2 to d6) of the guide parts (16) of each die. The diameter (d) of the guide part (16) of the first die is at most as large as the smallest diameter (d1) of the cooling tube diffusor (2) and the subsequent diameters (d3 to d7) of the following dice at most as large as the smallest width of the cooling tube (1). The incline angles B1 to B6 of the dice are greater than the angle of the cooling tube diffused. ADVANTAGE - Is effective water stripping device which does not require additional pressurised air or water.  It is short in length and the electro-energy consumption is reduced.
Patent DE-4014094-A1 (DE)
Title: Window or door seal control mechanism - has clamp, coupler and rod-shaped connecting part between them
Inventor: HOLTHAUS ALFRED
IPC: E05C17/04
Filed: 1990-05-02
Abstract: The windows and doors leaf control (2) comprises a clamp portion (11) with a connector (12), which are at opposite ends of a bar-shaped joining section (13).  The connector is pref. a suction cap of elastic material. The clamp portion is all-shaped metal with a plastics coating and has inward facing, sprung side walls (15, 16) with lugs (16, 17).  The bar-shaped joining section is of an elastic plastics. ADVANTAGE - Reduced noise under windy conditions.
Patent DE-4015272-A1 (DE)
Title: Radio receiver with multiple stages - has reserve stage that is switched in if main receiver stage fails
Inventor: BRODOWSKI RUEDIGER DIPL ING
IPC: H04B17/21
Filed: 1990-05-12
Abstract: The receiver for radio signals has 4 inputs from separate aerials (1-4) and these are selectively coupled to receiver modules (5-8). The transmission is controlled by a group (15) of relays (16-19). The outputs (11-14) are similarly controlled by a group of 4 relays (21-24). The system has a reserve receiver (27) that has a number of inputs (28) and outputs (29). The receivers are controlled by a  processor that allows the reserve stage to be switched in if a failure of a main stage occurs. ADVANTAGE - Maintains operation  if receiver stage fails.
Patent DE-4018431-A1 (DE)
Title: Electronic multiplier circuit - eliminates errors in certain stages and uses one additional flip=flop for control stage B-mode operation
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1990-06-08
Abstract: The electronic multiplier circuit forms the intermediate result numbers of the product by parallel addition of the multiplicands and hence forms the product numbers. The number of parallel additions required is minimised by relative displacement of the multiplicands wrt. the intermediate results. The main pulse circuits (11) is not temporarily set at rest during the multiplication process. The B mode of operating the control stage only involves one additional flip-flop (31).
Patent DE-4021252-A1 (DE)
Title: Gallium-arsenide single crystal - has indium added in specified amts. giving reduced dislocation density
Inventor: AOYAMA SEIGI
IPC: C30B11/00
Filed: 1990-07-04
Abstract: GaAs-single-crystals of reduced dislocation density comprise a GaAs single crystal with In at a concn. of 1x10 power 18 cm-3 to 1.5x10 power1cmpower(-3), where the crystal exhibits a surface free from surface boundary flaws when an epitaxial layer is formed on the crystal. The crystal exhibits a dislocation density of 1500cm power(-2) or less. Pref. at least one impurity is added chosen from Cr, Si and Zn to the raw materials as a dosing agent. USE/ADVANTAGE - The single crystals of reduced dislocation density are useful for prodn. of integrated circuits with field effect transistors, optoelectric integrated circuits, etc.
Patent DE-4022171-A1 (DE)
Title: Joint end with external bearing ring and integral shaft - has e.g. borehole where ring joins shaft to ensure uniform hardness in achieved during quenching
Inventor: SCHLEGEL WOLFGANG
IPC: C21D9/00
Filed: 1990-07-12
Abstract: Joint end with an external bearing ring (1) from which extends an integral shaft (2) has the novelty that the region of transition (4) from the bearing ring to the shaft (2) has a depression (5) extending transverse to the shaft's longitudinal axis (6). - The depression is in the form of a hole passing through the longitudinal axis of the shaft and running parallel to the longitudinal central axis (7) of bearing ring. The hole is sealed by a stopper. (4pp Dwg.No.1/2)
Patent DE-4024287-A1 (DE)
Title: Vehicle control unit with microcomputer - feeds digital output signals back to single diagnostic input via decoupling elements to perform self-test
Inventor: BECHTLE ROLF
IPC: G05B19/042
Filed: 1990-07-31
Abstract: A controller with a microcomputer (2) for controlling several devices (3-10) in a motor vehicle switches them on and off using digital signals and performs self-diagnosis by feeding back output signals to a digital input of the microcomputer. The controller outputs (DO-DO7), which are driven sequentially with a small time offset or in some other manner, are fed via decoupling elements (19-26) to a star point (27) which is connected to a single digital diagnostic input (EDIAG). ADVANTAGE - Enables self-diagnosis of the digital outputs without signficant additional cost.
Patent DE-4029202-A1 (DE)
Inventor: MASSEN ROBERT PROF DR
IPC: B07C5/36
Filed: 1990-09-14
Abstract: A device for the processing of particles, especially by means of a grinding unit (W1, W2), has, downstream of the latter, a monitoring arrangement (101) for detecting a parameter corresponding to the size of the processed particles. The output signal from this monitoring arrangement is used for regulating the processing, especially for varying the grinding gap (g). <IMAGE>
Patent DE-4030734-A1 (DE)
Title: Dental treatment by pulsed solid state laser - using fibre-optics tool and hydroxy-apatite or tetra:calcium phosphate filler
Inventor: STEIGER ERWIN DIPL PHYS
IPC: B23K26/144
Filed: 1990-09-28
Abstract: A process and appts. are claimed for non-mechanical, non-contact treatment of various teeth, for prodn. of permanent and non-toxic inlays in treated tooth cavities, and for non-mechanical prepn. and filling of root canals using a pulsed laser system, a fibre-optics transmission system, a hand piece with replaceable heads and a hydroxy-apatite or tetracalcium phosphate filler. The novelty is that (i) the laser system is a pulsed solid state laser with a crystal of Cr:Al2BeO4 (alexandrite), doped YAG, doped YSGG or doped YLF and operated at 10mJ-2J pulse energy, 100 nsec - 1msec.  pulse duration and 1-50 Hz repetition rate; (ii) the optical transmission system comprises a single glass fibre of 50-800 microns core diameter; (iii) the hand piece and replaceable head unit has a fibre-optics transmission, system, a spherical or gradient lens, a beam deflection element, an optical quartz glass window and a mechanical feed line for an aq. aerosol; (iv) the tooth cavity or root canal filling is a powder, granulate, suspension or paste contg.  hydroxyapatite or tetracalcium phosphate of 0.02-10 microns particle size and 1-10% (based on the hydroxyapatite or tetracalcium phosphate) of a tetracycline deriv.; and (v) crystallisation of the tooth cavity or root canal filling is carried out using the laser handpiece. ADVANTAGE - Dental treatments are carried out with a high degree of patient comfort and with absolute and permanent closure of root canal and tooth cavities.
Patent DE-4031378-A1 (DE)
Title: Expansion joint for wall of electric furnace - has stack of disc springs which exert force tending to close joint
Inventor: KUEHN HANS-EBERHARD
IPC: C21D9/00
Filed: 1990-10-04
Abstract: An electric pit furnace has four walls to provide a rectangular plan form. Each wall is provided with an expansion joint. Each expansion joint is formed by a gap in the wall with a rod extending across the gap. A stack of disc springs is fitted over the rod and exerts a force which tends to close the gap between the two parts of the wall. The expansion joints allow the walls to expand and contract in the longitudinal direction with any stresses being imposed on the wall. USE - Expansion joints for walls of electric furnaces.
Patent DE-4032248-A1 (DE)
Title: Two circuit braking system with ABS for motor vehicle - includes main brake cylinder having two outputs connected to brake circuits contg. wheel bearing cylinder(s)
Inventor: WETZEL GERHARD DIPL ING
IPC: B60T8/34
Filed: 1990-10-11
Abstract: A magnetic valve unit (17) is provided for brake modulation in the first braking circuit (1) upon slip. A return pump (18) driven by an electric motor (19) is switched on upon brake pressure modulation for the return of the braking fluid from a LP reservoir (20) connectable to at least one wheel brake cylinder. A pressure modulator (28) transmits brake pressure modulation to the second braking circuit (II). The latter is led across a control chamber (32) of the pressure modulator (28). A safety valve (40) is arranged in series to the control chamber. Upon failure of the magnetic valve (17) the safety stop valve (40) operates between the braking circuit output (12) of the main brake cylinder (10) and a first chamber section (32a) of the second control chamber (32). It is a 2/2 way magnetic valve. For the duration of the braking pressure modulation it is changed over to its blocking position. At least one of the wheel braking cylinders arranged in the second braking circuit is connected directly to the first chamber section (32a). USE/ADVANTAGE - Flow of brake fluid is prevented even with fault. Brake pressure can be controlled in wheel brake cylinder through main brake cylinder across stop valve in its basic position.
Patent DE-4037253-A1 (DE)
Title: Pasture paddock pencing arrangement - uses side and face walls of welded and screwed iron@ grid frames
IPC: E04H17/18
Filed: 1990-11-23
Abstract: The pasture paddock fencing has side and face walls of iron grid frames (4) which are welded and screwed together, and provided with wheels (18). The wheels are hydraulically, electrically or manually guided or by steering bars, and the fencing can be pulled or pushed into position. Where they are pulled, the mechanism used has a compensatory over-bridging, and can be fitted on the front or rear side. Longitudinal and rotary compensators are incorporated with springs, rubber plates, links or rotary crowns, according to the type of land on which the fence is used. One or more protective covers (1) of aluminium profile plates or other suitable roof and wall material are installed. USE - As a fencing enclosing a pasture paddock.
Patent DE-4037465-A1 (DE)
Title: Fuel injection pump for IC engine - has constantly open throttle bore in valve piston
Inventor: AUGUSTIN ULRICH DR
IPC: F02M59/46
Filed: 1990-11-24
Abstract: The injection pump has pump cylinders, each with a pressure valve with valve piston, forming a seat. With feed pressure, the piston is lifted off a valve seat against a pressure valve spring. The piston (2) has a throttle bore for pressure relief when the valve piston is in closing position. the throttle bore (16) maintains a constant connection between injection conduit (10) and pump working chamber (2). It opens into a central stepped bore (18) and this, together with a cross bore (19) and a ring groove (20), connects conduit and chamber at feed pressure.
Patent DE-4037882-A1 (DE)
Title: Solid electrolyte electrode structure for containment of a reactant - consists of beta-alumina sintered material formed into sheets with a sinusoidal profile bound together at the perimeter
Inventor: BONES ROGER JOHN
IPC: H01M50/466
Filed: 1990-11-28
Abstract: The container (10), formed of sintered solid electrolyte material, is formed by binding together 2 sheets (14,16) of the material at the edges (32,34). The sheets have parallel wavy profiles (22) in the length direction leaving a space (24) between them for the electrode material. The profiles of the 2 sheets may be in phase or out of phase but have the same periodicity, or may have a step-wise change (28) in wavelength. An opening (12) is provided for external contact and filling. Separators, pref porous, may be used to hold the 2 sheets away from each other. The material used is pref alumina, with the profiled sheets beta-alumina. Prodn of the container comprises a mixt of the electrolyte material, or material from which it can be formed during processing, is formed with a binder which is both thermoplastic and thermosetting. Then the profiled sheets are formed and connected together forming seams round the perimeter, leaving a space between them. The binder is then made to set, then removed by firing and the material is sintered. The profile is pref applied by using profiled rollers. The seams are closed with a roller at elevated temp when the binder is still thermoplastic. The filler opening is also pref made of alumina. The container is pref configured as anode and filled with Na which is molten at the operating temp of the electrochemical cell.
Patent DE-4037981-A1 (DE)
Title: Concrete floor finishing machine - has unit detecting smoothing plant height and controlling adjusting mechanism
IPC: E04F21/24
Filed: 1990-11-29
Abstract: The finishing machine forms a floor coating of concrete etc. It has a float (10) supporting a height-adjustable surfacing tool (13) offset from it in the direction of movement (A). The tool consists of a smoothing plank, while a drawbar (17) is mounted on the machine. A measuring unit (21) detects a plank height in relation to a datum level (22), and with the aid of this a height-adjusting mechanism keeps the plank at a predetermined height as the machine travels over the concrete. USE/ADVANTAGE - Simplicity, and mantains concrete exactly at desired level.
Patent DE-4042238-A1 (DE)
Title: Fuel filter for internal combustion engine - comprises filter housing contg. body with fine filters and valve controlled by=pass, for easy assembly and economical mfr.
Inventor: MYERS JAN WILLEM MARINUS
IPC: B01D29/05
Filed: 1990-12-29
Abstract: Filter has a filter housing contg. a filter body with fine and coarse filters, the latter transverse to the axial direction of the former. When the fine filter is clogged, pressure over the coarse filter increases and opens a valve to by-pass to the fuel pump. The passage is normally closed by a valve element fastened to the valve stem, while the valve disc is guided by the stem in the interior of the fine filter and is supported by a spring. ADVANTAGE - Economical to mfr..
Patent DE-4100903-A1 (DE)
Title: Worm gearing with spring pressure brakes - has loose brake disc adjoining fixed brake disc when drive motor is dismantled
Inventor: SCHOO ALFRED DR
IPC: H02K7/10
Filed: 1991-01-15
Abstract: The worm gear has a housing containing the worm shaft and worm wheel. When the detachable drive motor (10) is dismantled the worm shaft (1) is held on the worm gear housing (3) by a spring pressure brake (5) which is located on the drive-side end of the shaft (1) and which can be operated in the axial direction. The brake force of the brake (5) during axial installation of the drive motor is lifted through the axial displacement of the motor in the direction of the gear housing (3) and subsequent fixing on the housing. ADVANTAGE - The gearing is automatically secured on dismantling the drive motor and the end of the worm shaft remote from the drive side remains free for other uses e.g. for driving an oil-cooling ventilator.
Patent DE-4103101-A1 (DE)
Title: Isolating switch for gas-insulated switchgear - has support for rotary location of switch blade and bearing for three=phase drive shaft and earth
Inventor: TESHIMA MASAYUKI
IPC: H01H31/28
Filed: 1991-02-01
Abstract: The drive shaft (6) is provided for operating at least one knife switch (1). The earth connection (8) is fixed on or at an insulating part (4), also the support part (2), the fixed contact (3) and the bearing (70) for the drive shaft. The insulating part can be made of synthetic resin. Of the support part (2), the fixed contact (3), the bearing (70) and the earth connection (8), at least two are arranged at the insulating support part (40). The support part (2), the fixed contact (3) and the earthing connection (8) are cast integral at the moulded insualting support part (40). ADVANTAGE - Developed so that it can be easily built in short time and lined up as well as switchgear so that switch chamber and bus-bar chamber using isolator can be compactly built.
Patent DE-4105349-A1 (DE)
Inventor: BRUHN RAINER
IPC: H02K23/66
Filed: 1991-02-21
Abstract: A pump (1) can be quickly connected and precisely fitted to an electric motor (2). To this end, a hollow, pin-shaped attachment (6) which can engage in an insert recess (5) of the pump is formed on the pot-shaped motor housing (7), in particular on its base (10). In particular, a drive excentric (4) of the drive shaft (3) of the motor is correctly coupled with the pump when the pump and electric motor are assembled. If the first motor bearing is to be accomodated inside the pin-shaped attachment (6), it must fit both in the inside and on the outside of the attachment. This double fit in motor housings (7) made of deepdrawn sheet metal is possible only if the cross-section of the wall of the attachment (6) has an undulating, meander-shaped or similar periphery. This makes it possible to use a plastic cover in conjunction with the sheet metal housing and to dispense with a carbon holder disk. The latter possibility, in connection with another embodiment, makes it possible to assemble the motor automatically and to combine it with plug connections and possibly electronic housings.
Patent DE-4105566-A1 (DE)
Title: HF oscillator with output frequency converted to IF - generates reference frequency of sampling synthesiser by division of pure fixed frequency
Inventor: MINIHOLD ROLAND DIPL ING
IPC: H03L7/22
Filed: 1991-02-22
Abstract: The oscillator output frequency (fo) is mixed downwards to a lower IF (ZFI) by a frequency spectrum generated by a frequency multiplying. The IF phase is compared with that of an interpolation frequency (fi) in a phase detector (4), synchronising the HF oscillator (1), while the interpolation frequency is generated in an interpolation synthesiser (5) of high frequency resolution. The sampling frequency (FS), supplied to the multiplier, is generated by a sampling synthesiser (6) phase controlled oscillator (8). The sampling synthesiser reference frequency (fs) is generated by a frequency divider (13), adjusted by a single fraction (N, F), by dividing a spectrally pure frequency (f). USE/ADVANTAGE - E.g. for spectrum analyser. Facility for turning in a wide frequency range, with high spectral purity of the oscillator output frequency.
Patent DE-4108183-A1 (DE)
Inventor: MAYWALD VOLKER DR
IPC: C07D261/18
Filed: 1991-03-14
Abstract: Isoxazol- and isothiazol-5-carboxylic acid amides have formula (I), in which X stands for oxygen or sulphur, R<1> stands for hydrogen, if necessary substituted alkyl, cycloalkyl, cycloalkenyl, alkenyl, (if necessary epoxydized at the double bond), alkinyl, alkoxy, a heterocyclic residue or phenyl; R<2> stands for a derived carboxylic function; and R<3>, R<4> have the meaning given in the description. Also disclosed are herbicides containing the compounds (I).
Patent DE-4109988-A1 (DE)
Title: Dental equipment for extracting teeth - has ultrasonic generator which acts on tooth-bone connecting tissue to destroy connective tissue between jaw bone and bone cement
Inventor: DISKAR DIETER
IPC: A61C1/07
Filed: 1991-03-27
Abstract: The equipment consists of extracting forceps (10) one leg of which is a handpiece which contains an electromechanical converter consisting of a cylindrical coil (2) and an oscillator (3). The jaws (11, 12) of the forceps have on one side a layer of rubber (13) and on the other a coupling layer (6). The equipment provides a high intensity of ultrasonic energy to the tooth to be extracted. This energy destroys the desmodont, the connective tissue between the jawbone and the bone cement. ADVANTAGE - Allows tooth extraction with little force, insignificant bleeding, and without need for local anaesthetic.
Patent DE-4113422-A1 (DE)
Inventor: KLEMM GUENTER WILLI PROF DR
IPC: E21B19/086
Filed: 1991-04-25
Abstract: The earth borer has an extended bearer (10) with a runway (11) to guide a main carriage (25). The drive device for the main carriage (25) consists of a piston-cylinder unit (27) extending beneath the runway (11) under the main carriage (25), the cylinder (28) of which is supported on the bearer (10) via a joint (29). The piston rod (30) engages with the front end of the main carriage (25). The piston-cylinder unit (27) projects beyond the rear end of the bearer only slightly or not at all.
Patent DE-4128485-A1 (DE)
Title: Draped curtains - have guide openings for draw cord arranged in special shape
Inventor: PROSCH DIETER
IPC: A47H5/14
Filed: 1991-08-28
Abstract: The draped curtain comprises at least one piece of material (1) whose upper edge is fixed on a locally fixed support (8) and contains a row of guide elements (2) with guide openings for the draw cord (10) which is passed through. The row of guide elements (2) extends from a point A over a substantial part of the material (1) to a point B which is lower and nearer to the opposite edge of the material than point A. The cord operating device is pref. a winding reel to which the end of the cord is fixed. The lower end of the cord can be stressed by a weight. ADVANTAGE - The folds in the drapes are produced solely by the guide of the cord.
Patent DE-4143341-A1 (DE)
Title: New amino-calcein cpds. for reversible optical sensor for metal ion concn.
Inventor: JUDEX PATRICIA DR
IPC: G01N21/77
Filed: 1991-02-22
Abstract: Optical sensor for measuring metal ion concns. (a) contains calcein, (b) which is bound to a matrix by a chemical reaction and thus immobislied. The novelty is that (c) the matrix is a glass with porous surface structure. New aminocalcein cpds. are of formula (I), where 2 R gps. = iminodiacetic acid gps. (-CH2-N((CH2COOH)2) and the other R gps. = H.     (I) is prepd. (claimed) by reacting aminofluorescein with iminodiacetic acid. The matrix is porous glass with an average pore dia. of 7.7-100 nm and specific surface area of 25-200 m2/g. It pref. is fixed to a solid, optically transparent medium.     The sensor is produced (a) by silanising the glass with an aminoalkyl-alkoxysilane, reacting the amino gps., which are chemically fixed to the glass, with CSCl2, forming NCS gps.; and converting the NCS gps. to thiourea derivs. by reaction with (I); or (b) by silanising the glass with an epoxyalkyl-alkoxysilane, acid hydrolysis of the epoxy gps. to form a diol and Friedel-Crafts alkylation of calcein with the diol. The glass is fixed to the transparent medium with silicone rubber.
Patent DE-4200685-A1 (DE)
Title: Liq. ash sepn. combustion waste gas - in cyclones prior to gas use, for energy recovery
Inventor: WEBER EKKEHARD PROF DR
IPC: B04C5/14
Filed: 1992-01-14
Abstract: Liq. ash is sepd. from carbonaceous fuel combustion waste gas, which is at 1200-1800 deg.C and 1-100 (pref. 1-30) bars pressure and which contains 0.1-60 g/Ncu.m. ash, by passing the waste gas from the combustion chamber through one or more cyclones prior to using the gas in a gas turbine and a steam generator for energy recovery. Either (i) the cyclones are operated in an inclined position and the liq. ash is discharged from the cyclones through lines inclined w.r.t. the cyclone axes; or (ii) the cyclones are operated in the vertical position and the liq. ash is discharged from the cyclones through an inclined line. Appts. for carrying out the process is also claimed. ADVANTAGE - Provides reliable prevention of solid ash deposit build-up in the cyclones so that the cyclones are capable of long term operation with constant capacity.