baber/WOPTO huggingface dataset:
Patent DE-3841574-A1 (DE)
Title: Device for dividing a web made of a ductile, flexible material
Inventor: GAILLE ALAIN
IPC: B26D7/02
Filed: 1988-12-09
Abstract: The device has a roller (27) which is provided with recesses (28, 29) which are parallel to its axis and the device also has a cylinder (1) which interacts with the said roller (27) and is equipped with blades (9, 10, 11) and with elastically mounted pressing elements (12 to 17) on both sides of each blade. The two pressing elements arranged on each side of a blade act in directions which are to convey on the roller (27), the said pressing elements striking the surface of the roller (27) when brought up to the latter across the web (30) to be cut and being pressed backwards by the said roller (27) against the resistance of springs (24, 25, 26) towards the inside of the cylinder (1). In this manner, the web (30) to be cut is pressed against the roller (27) on both sides of a recess (28) and in this process is held in a tensioned manner owing to the orientation and movement of the pressing elements, so that it can be cut perfectly by the blade engaging in the recess. <IMAGE>
Patent DE-3842067-A1 (DE)
Inventor: RUEGER WOLFGANG DR
IPC: C07K5/02
Filed: 1988-12-14
Abstract: The present invention relates to compounds of the general formula I <IMAGE> (I)  in which A denotes a radical from the group comprising S, SO, SO2, O, CO, CS or a direct bond, B denotes the radical of an amino acid and D denotes a CH2 group or a radical -NR7-, where R7 can be hydrogen or a (C1-C4)alkyl radical; and in which R1 to R4 are defined as indicated in the description, to a process for the preparation thereof, to agents containing these, and to the use thereof.
Patent DE-3900147-A1 (DE)
Title: Method for producing a semiconductor device
Inventor: ITO MITSUAKI
IPC: H01L29/78
Filed: 1989-01-04
Abstract: In order to produce a semiconductor device of the MIS type having channel doping, the distribution characteristics of the disturbance point density is determined over the depth of the substrate (or of a well) for different quantities, for channel doping of implanted ions. The swing value is calculated from the gate voltage/drain current characteristic on the basis of the distribution characteristic determined. Ions are implanted in the channel with a doping level which is implanted in the substrate in accordance with the disturbance point density in such a manner that the swing value assumes a minimal value or a value which is as low as possible.
Patent DE-3902058-A1 (DE)
Title: Shaft sealing system
Inventor: HESSE EDWIN DIPL ING
IPC: F16J15/3264
Filed: 1989-01-25
Abstract: In a shaft sealing system for sealing off rotating shafts relative to sealing liquids contaminated with solid particles, the protective ring arranged axially at the front, on the liquid side of the lip sealing ring, consists of a rotating, radially projecting flinger ring connected rotationally to the shaft and of a filter ring which is inserted into the housing, is stationary in operation and surrounds the flinger ring with axial and radial clearance, so that, under operating conditions, the liquid to be sealed off is directed towards the filter ring, where the solid particles are deposited. The liquid cleaned at the filter ring can form a lubricating film of liquid at the sealing gap of the sealing lip without solid particles being deposited there and causing wear to the sealing lip. <IMAGE>
Patent DE-3902691-A1 (DE)
Title: Final circuit for adder circuits which process 1-out-of-10-coded decimal digits
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1989-01-30
Abstract: In the final circuit according to the subject of the invention, in partial circuit (30), the digits of the upper range (5 to 9) are not reduced by the number 5, but the digits of the lower range (0 to 4) are increased by the number 5. <IMAGE>
Patent DE-3905025-A1 (DE)
Title: Process for producing high-grade bauxite sinter having grain fractions up to 6 mm and above with simultaneous utilisation of the thermal energy of waste oils, even waste oils which can only be destroyed without hazard by high temperatures - up to 2000@C; wherein if only hazard-free destruction of such waste oil is to be operated, the bauxites are able to be replaced by material having high melting points, for example tungsten, as substitutes
Inventor: KLIMANEK ERICH DIPL ING
IPC: A62D101/22
Filed: 1989-02-18
Abstract: According to the invention, previously low-grade bauxite fine grains which arise in large quantities in processing are made more easily reusable via a sintering process. At the same time, via high material surface temperatures - around 2000@C - in the sintering process, waste oils are destroyed in a more hazard-free manner and their thermal energy is utilised for the sintering process. In this manner, considerable amounts of foreign exchange can be saved by bauxite material upgrading and environmental pollution can be decreased via more hazard-free waste oil combustion (incineration).
Patent DE-3905993-A1 (DE)
Title: Appliance and method for the purpose of detecting oxidisable and/or reducible gases
Inventor: RUMP HANNS
IPC: G01N27/12
Filed: 1989-02-25
Abstract: The invention describes an appliance and a method in which the temperature of a gas-sensitive metal oxide sensor element is changed periodically in such a way that maximum sensitivity with respect to specific test gases (gases to be analysed) is produced at the same time as maximum availability (minimal "dead times") of the sensor element.
Patent DE-3911471-A1 (DE)
Title: Heterodyne method for refractometric measurement and stabilisation of wavelength
IPC: G01J9/04
Filed: 1989-04-08
Abstract: A description is given of a heterodyne interferometric method for measuring the refractive index of the air or of another medium using a two-chamber refractometer and a radiation source allocated to each. The mechanical chamber lengths of the vacuum chamber as reference and of the measuring chamber in free air are equal and constant relative to each other. In both chambers, the number of interferences is held constant over the chamber length by controlling the frequency of the radiation source allocated to the measuring chamber. The frequencies of both radiation sources are brought into interference and the beat frequency is measured. The ratio of the beat frequency to the carrier frequency is the measure of the refractive index. In terms of instrument construction, the method is very simple and of high resolution and can be used for stabilising both the wavelength and the frequency. <IMAGE>
Patent DE-3926567-A1 (DE)
Title: Film foil application to PCB - by fastening leading end and laminating vapour sprayed joint
Inventor: SCHMID DIETER C DIPL ING
IPC: B32B37/22
Filed: 1989-08-11
Abstract: Foil material is applied to plate-shaped carriers, esp PCB's, by fastening the leading edge to the front end of the carrier and by laminating the following parts. the rear of the foil and/or the top of the carrier are first treated with a vapour which causes the foil to swell. ADVANTAGE - This causes the foil eg of photolacquer to lie securely and with its entire surface area on the carrier eg the PCB, even when the latter has recesses with a depth of several microns.
Patent DE-3927307-A1 (DE)
Title: Short circuit protected transistor circuit - includes MOSFET and parallel resistance between control connection for auxiliary IGBT and one main connection
Inventor: FUJIHIRA TATSUHIKO
IPC: H03K17/082
Filed: 1989-08-18
Abstract: The circuit with a main IGBT (13) and an auxiliary IGBT (14) forming part of an integrated circuit on a single semiconductor substrate, and parallel to two main connections (11,12), includes a common control connection (19) for controlling the current through the two IGBTs. A circuit which includes a switching transistor (18) is connected between the control connection and one (12) of the two main connections. The current through the two IGBTs is limited when the load across the two main connections is short circuited. The switching transistor is a MOSFET. An enabling resistance (15) in the form of a polycrystalline silicon film is connected between the auxiliary IGBT and the main connection (12). ADVANTAGE - Full protection from short circuit ensured by simple circuit.
Patent DE-3928486-A1 (DE)
Title: Constructional section for frames or supports - consists of two sections joined at ends by connection
Inventor: FAULENBACH NEITHARD
IPC: G09F15/00
Filed: 1989-08-29
Abstract: The constructional section is for frame-type and support structures. It has at least two support sections (2) detachably joined at the ends by a connection (4) consisting of a junction-piece (6,6a,6b) with at least three aboutment surfaces (8). At least two connecting profiled sections (10) are fixed to the end surfaces of one of the contact surfaces (8) onto the junction piece (10).  The ends at least of the supports (2) are hollow and plug onto the connecting profiled sections (10). USE/ADVANTAGE - The constructional section can be easily and rapidly assembled and extended or reduced at will.
Patent DE-3929003-A1 (DE)
Title: Heat exchanger for washing dryers - with parallel layers on flow duct alternatingly supplied with cooling air and process air
Inventor: SALZER ULRICH DIPL ING
IPC: F28B9/08
Filed: 1989-09-01
Abstract: Heat exchanger for condensn. dryers for washing incorporates parallel layers of flow ducts which are alternatively supplied with cooling air and process air. At least a proportion of the flow ducts consists of heat exchange subcomponents which are of the same size and aligned vertically and horizontally. ADVANTAGE - The efficiency of the drying process is improved.
Patent DE-3935613-A1 (DE)
Title: Prevention of drying out of printed paper drying ink - by injecting fine droplets of water into drying chamber
Inventor: GLOECKNER ERHARD
IPC: B41F23/04
Filed: 1989-10-26
Abstract: The continuous strip of printed paper is dried by passing it through a hot air heater.  This method of drying the ink also reduces the water content of the paper and makes the paper brittle, so that difficulties arise in the paper folding machine. The decisive condition for drying the ink is the temp. difference between the air and the paper.  The relative humidity  of the air has no effect on the drying of the ink.  To overcome the drying out of the paper involves injection of fine droplets of water into the drying chamber.  Alternatively, saturated steam may be injected. USE - Printing industry.
Patent DE-3936649-A1 (DE)
Title: Crankshaft giving adjustable stroke - has drive to adjusting components from one end via components rotating with it
Inventor: INGELHEIM GRAF VON
IPC: F02B75/04
Filed: 1989-11-03
Abstract: The crankshaft contains a drive mechanism (7, 16) by which the centre distance between the connecting rod big end and the journal (5) is adjustable while it is rotating. The drive is taken from one end (17) of the crankshaft to the components (1, 2) effecting the adjustment via components (6-9, 11-13) rotating with it, and which move in relation to it only when adjustment is taking place. Adjusting power is supplied to them from outside via a first drive mechanism (16, 20) actuated by the movement of components (22, 23) supported on the engine housing. USE/ADVANTAGE - Simple adjustment of piston top-dead-centre position in engines, pumps or hydraulic motors.
Patent DE-4001930-A1 (DE)
Inventor: HEITMANN JUERGEN DIPL ING
IPC: H04N9/64
Filed: 1990-01-24
Abstract: A method for processing a PAL colour television signal is proposed, in which the simple PAL-demodulated V component of the PAL colour television signal is analysed to derive a signal for correction of the phase angle between a colour synchronisation signal and a colour type signal. Values of the V component which are delayed by a line period and values which are not delayed are added and integrated for the duration of a plurality of line periods. Values of an associated U component are used to control inversion of the signal to be integrated in sign-dependent fashion. The integration is prevented when specific values of the V and U components are present.
Patent DE-4005007-A1 (DE)
Title: Radial shaft seal for high shaft speeds - has elastic compression ring fitted perpendicular to and around inwardly directed sealing lips
Inventor: PROBA ERNST DIPL ING
IPC: F16J15/3208
Filed: 1990-02-19
Abstract: The radial shaft seal (1), suitable for high shaft speeds and pressures, has its sealing lips (2) extending inwards towards the shaft axis. An elastic compression ring (5) is fitted perpendicular to and around the sealing lips. The compression ring is either a gas- or fluid-filled tube or a bimetallic strip. ADVANTAGE - The compression element contracts at increased temps. improving the sealing performance.
Patent DE-4008634-A1 (DE)
Title: Digital memory for video signals - has part image data provided for input to memory in continuous process with address control
Inventor: WUNDERLICH WOLFGANG
IPC: H04N5/33
Filed: 1990-03-17
Abstract: A video camera delivers a pair of alternating half images that each consist of a number of pixels. The pixel data is received by bus driver stage (3) that provides an input to a RAM memory (2). A clock generator (7) provides an input to an address generator (10) and an inverter (6) to provide enables (E) for the bus driver stages (3,4). The pixel data is continuously entered into memory and is read out in sorted form with the addresses generated by a read only memory. ADVANTAGE - Allows part image read out while new information is entered.
Patent DE-4015403-A1 (DE)
Title: Digital amplitude regulation circuit for colour TV signal - has integrator circuit with limit logic to control value of amplitude
Inventor: BOEHME SIEGFRIED
IPC: H04N9/68
Filed: 1990-05-14
Abstract: The digital amplitude regulation circuit has the difference swignal (D) received by a shift register (1) controlled by a clock (CLK) and with the output transferred via a multiplexer (7) to an integrator (18). The integrated value is received by a multiplier (20) that also receives a multiplying factor (T). Output is provided a comparator (25) with upper and lower boundary values and generated signals control a mutiplexer (20) coupled to the output register (42). The output is fed back to control the integrator via a logic limit stage (17). ADVANTAGE - Provides improved regulating speed.
Patent DE-4023298-A1 (DE)
Title: Establishing data connection via telephone network - forming connections between subscribers in digital telephone network using interface CCITT-X-21 and terminal adaptors
Inventor: THULLEN RAINER DIPL ING
IPC: H04Q11/04
Filed: 1990-07-21
Abstract: The subscriber's appts. (DTE1, DTE2) are connected to the network (FN) via terminal adaptors (TA1, TA2) resulting in connection between the them (TA1, TA2) with the help of predetermined network signals. The first subscriber's appts. (DTE1) is coupled to the assigned first terminal adaptor (TA1) via a CCITT X.21 interface. The adaptor is coupled to the telephone network (FN) via a digital four wire interface and can be connected to a second terminal adaptor (TA2) also coupled by four wires to a two wire subscriber's appts (DTE2) via a X.21 interface. USE - Connecting subscribers of digital telephone network for data exchange.
Patent DE-4027086-A1 (DE)
Title: Dowel for joining butt ended wooden parts -  consists of metal shank driven between two attachment sides
Inventor: WOLFF ROBERT
IPC: F16B12/24
Filed: 1990-08-28
Abstract: The dowel (1) for joining two butt-ended wooden parts each of which has an attachment side (I,II) fitting into the other has a metal shank (2,5) driven directly into the solid wood on one attachment side (I). The other attachment side (II) consists of a wedge-shaped tine (4) made of natural wood or plastic, or pin held on an extension (3) of the metal shank (2,5).  The tine or pin fits into a dovetailed groove. USE/ADVANTAZGE - The dowl pin makes it easier to join wood and reduces the work involved.
Patent DE-4038445-A1 (DE)
Title: Control of gas flow in industrial burner - using diaphragm valve with input provided by gas supply having high-pressure branch
Inventor: MEYER WILFRIED
IPC: G05D16/20
Filed: 1990-12-01
Abstract: A gas supply (1) is passed through a pair of control valves (2, 3) to provide a controlled output to a load. Each of the valves is operated by a diaphragm actuator (4, 4') and the fluid for operation is the gas being control that is pressurised by an amplifier, e.g. compressor (8). The pressure for the first valve is set by a restrictor (11). The second valve operates in a servo mode with the output fed back onto the underside of a regulator (19) that has a restrictor (23) controlled bleed. ADVANTAGE - Uses gas supply as control medium.
Patent DE-4038981-A1 (DE)
Title: Frequency changer for AC crane motors - uses equivalent circuit data to compute torque and to avoid approaching pull=out torque
Inventor: FISCHER CHRISTOPH
IPC: H02P27/04
Filed: 1990-12-06
Abstract: The cage induction motor (1) driving the crane load (3) is connected to the frequency changer (5) which can output a frequency of up to four times the frequency of the mains (7). This frequency determines the motor speed for a particular load. The monitor (11) reads the motor current and voltage. The keyboard (23) is used to input equivalent circuit data. The instantaneous torque computed from this can be compared with that measured on a dynamometer (25). The controller (21,15) can ensure that the motor torque for a chosen speed does not approach the pull-out torque. USE/ADVANTAGE - Frequency changer for controlling speed of cage induction motor, especially for cranes; allows minimum hoisting time for given load.
Patent DE-4102610-A1 (DE)
Title: Coal dust swirl burner - in which dust-prim. air mixt. in introduced in entry chamber housing provided with adjuster for influencing tangential speed
Inventor: WEISER BERND DIPL ING
IPC: F23D1/02
Filed: 1991-01-25
Abstract: An axially movable, cylindrical displacement body (5) - influencing the rotational cross section of the dust-prim. air mixture (11) in the entry chamber (3) - is arranged in the rear wall (4) of the entry chamber, lying opposite the burner opening (9). The front end of the displacement body (5) is of truncated conical shape. The adjuster in the entry chamber of the burner housing is controllable by operating parameters such as temp. and flue gas composition, evaluated in a computer unit. ADVANTAGE - Prim. and sec. air swirled such that, with simple and robust control of prim. swirl, enlarged operation field related to combustion material is achieved.
Patent DE-4105744-A1 (DE)
Title: Vacuum brake force intensifier for vehicle - has two halves with joint area corrosion coating protected by plastic ring segments loosely tension against one half
Inventor: GUENTHER STEFAN DIPL ING
IPC: B60T13/567
Filed: 1991-02-23
Abstract: A housing for a vacuum braking force intensifier on a vehicle comprises two separate halves (1,2) loosely connected together. A corrosion protecting coating on the mating areas of the two halves (1,2) is protected from damage by one or more injection moulded plastic ring segments (10), pref. polypropylene. The segment(s) (10) are loosely held under axial tension on the second housing half. USE/ADVANTAGE - The component intensifies the braking force on a vehicle braking system and has protection of the corrosion resistant paint on the joint between the two halves.
Patent DE-4105984-A1 (DE)
Title: Sieve for producing fine ceramic powder - has rotating scraper which forces powder through sieve
Inventor: MUELLER BARBARA DIPL ING
IPC: B07B13/16
Filed: 1991-02-26
Abstract: A ceramic such as silicon nitride or aluminium oxide is produced in the form of a fine powder for the subsequent production of sintered workpieces. The raw material for the powder is first homogeneously moistened and then dried. After drying, the material is reduced to a powder by passing it through a sieve (10). The sieve consists of a fixed sieve element (13) with a rotating scraper (31) mounted immediately above it. The scraper rubs the material against the sieve to form a powder which is then forced thorugh the sieve. The size of the powder particles produced in this manner is smaller than the size of the sieve mesh. USE/ADVANTAGE - Production of fine powder ceramic to produce sintered workpieces with uniform porosity.
Patent DE-4106708-A1 (DE)
Title: Elastic bearing construction - has two chambers with elastic walls filled with liq. and sepd. by nozzle plate, and membrane of low expansion polyester film or fabric
Inventor: BERTHEAU ANDREAS DIPL ING
IPC: F16F13/08
Filed: 1991-03-02
Abstract: An elastic bearing has two liquid-filled chambers with (at least partly) elastic walls; these chambers are sepd. by a nozzle plate with integral flow channel (annular channel) and a disengaging membrane made of a low expansion flexible material and preferably a polyester film or a fabric. Pref. the nozzle plate (1) has perforated (3,4,5) top plate (2), dish-shaped (7) lower part (6), perforations (8,9,10), disengaging membrane (11) which rests loosely on the dish (7) area, and outer annular channel. ADVANTAGE - The prod. switches on and off the annular channel of a "hydro"-bearing which is dependent upon amplitude so as to provide absorption at high amplitudes, and also for acoustic disengagement at low amplitudes.
Patent DE-4118439-A1 (DE)
Inventor: HUETTLIN HERBERT
IPC: A61J3/00
Filed: 1991-06-05
Abstract: The apparatus comprises a vessel (10) which is essentially symmetrical about axis (A) and which has a bottom section (16) and a top section (18) the internal diameter of which tapers upwards. In the vessel (10) a central tube (20) is arranged equiaxially around which a fluidized bed space (40) is formed which receives from a bottom annular space (32) an upwards flow of process gas. The central tube (20) is provided for discharging the used process gas, which passes from inlet (22), downwards to exit (28) below the bottom of the vessel (10). Above inlet (22) the vessel (10) forms a shallow dome. The apparatus is suitable for the treatment of relatively large particles such as grapes, for example, and requires little space in relation to the holding capacity of the vessel (10). <IMAGE>
Patent DE-4121117-A1 (DE)
Inventor: WESTFECHTEL ALFRED DR
IPC: C07C45/48
Filed: 1991-06-26
Abstract: The invention concerns a method of preparing ketons of fatty acids by the pyrolysis of the magnesium salts of fatty acids. Fatty acids of the formula (I): R<1>COOH, in which R<1>CO an aliphatic acyl group with 12 to 22 carbon atoms and with 0, 1, 2, or 3 double bonds, are heated in the presence of magnesium oxide to temperatures of 290 to 450  DEG C and the ketones thus formed distilled off at reduced pressure from the reaction mixture.
Patent DE-4121771-A1 (DE)
Title: Filter for heating oil - has filter body detachably sealed to separate component securing it to base section
IPC: F23K5/18
Filed: 1991-07-01
Abstract: The heating-oil filter (2) has a base section (4) with inlet and outlet ports (10, 12), and to which a detachable cup-shaped housing (6) is secured via a sealing joint. A hollow porous filter body (38) of plastics particles pressed together and with a fixing (26) to the base section protrudes into the housing. The oil flows into a chamber (48) between the housing and body, through the latter into the interior (50), and from there to the outlet port. The fixing is a separate component, to which the body is detachably sealed. It can have one or more protrusions (30, 34) round the periphery, by which it engages with the inside and/or outside of the body. ADVANTAGE - Easy replacement with low cost and little wastage.