baber/WOPTO huggingface dataset:
Patent DE-3903713-A1 (DE)
Inventor: HEINIG KLAUS
IPC: F02K1/46
Filed: 1989-02-08
Abstract: A jet engine 1a with a gas turbine 2 and an afterburner 3 is provided with a primary nozzle 17 downstream of the gas turbine 2. Closable secondary air openings 23 are provided in the afterburner housing 15 directly downstream of the primary nozzle 17. The primary nozzle 17 and the secondary air openings are adjustable with respect to one another in order to attain as intensive a mixing as possible of air. In this way the noise of the jet engine may advantageously be substantially reduced. The nozzle 17 comprises pivotal tapered segments having holes therein. In alternative arrangements the nozzle may comprise a convoluted profile (Figs 2 and 3), multiple nozzles (Figs. 4 and 5) or hinged plates (Figs. 6 and 7). <IMAGE>
Patent DE-3905736-A1 (DE)
Title: Measuring device for determining air mass flow
Inventor: HENNING MANFRED
IPC: F02D41/18
Filed: 1989-02-24
Abstract: With a measuring device for determining the air mass flow fed to an internal combustion engine, comprising an air mass flow meter which is arranged in an air intake duct of the internal combustion engine, upstream of an adjustable throttling element, and the output signal of which is used for the open and/or closed-loop control of the internal combustion engine, and of its fuel supply, there is the problem of signal distortion due to the volume of the air intake duct and to the pressure fluctuations which occur therein. In order to produce a satisfactory air mass flow signal, a measuring device of this kind is distinguished according to the invention by a correction element, connected to the output of the air mass flow meter, for correcting the output signal at its rising and falling signal transitions taking into account the volume of the air intake duct downstream of the throttling element. The correction element is preferably designed as an electrical first-order delay element, the delaying action or time constants of which are varied in an operating-parameter-dependent manner, especially as a function of engine speed.
Patent DE-3906604-A1 (DE)
Title: Functional system and construction system for small waste water (effluent) treatment plants having an assigned structural component set
IPC: C02F3/32
Filed: 1989-03-02
Abstract: Published without abstract.
Patent DE-3919987-A1 (DE)
Title: Underfloor reconditioning system for railway wheels - involves use of combined underfloor inspection and turning installation for complete vehicle wheel sets
Inventor: SCHOENHUBER MAX-JOSEF DR ING
IPC: B23B5/32
Filed: 1989-06-19
Abstract: Increased demands of train speed, passenger comfort and safety have meant that an axle by axle approach to wheel turning and reprofiling is no longer adequate.  Smaller tolerances specified on the basis of a complete set of axles per vehicle require wheel maintenance to be based on the three stages: inspection, evaluation and the actual reprofiling process. Wheel maintanence is to be concentrated in installations having a combined inspection and underfloor turning capability permitting process optimisation on a per-vehicle basis. USE/ADVANTAGE - Closer tolerance railway wheel maintenance and greater efficiency.
Patent DE-3921923-A1 (DE)
Title: Cam shaft for IC engine
Inventor: RIEMSCHEID HELMUT DIPL ING
IPC: F16H53/04
Filed: 1989-07-04
Abstract: The cam shaft comprises a first shaft element, and a second shaft element. The first shaft element is disposed within the second shaft element and is movable relative to it. First cam elements are provided on the first shaft element, the first cam elements including lobe portions. Slots are provided in the second shaft element, through which at least the lobe portions of the first cam elements extend. Second cam elements are provided on the second shaft element. The slots in the second shaft element extend peripherally to a limited angular extent, and only the lobe portions of the first cam elements extend through it. The second shaft element has member providing base circle cam surfaces for the lobe portions of the first cam elements.
Patent DE-3930091-A1 (DE)
Title: Polarity sensitive load reverse voltage protection circuit - has power MOSFET and bistable comparator for efficient monitoring and control of directional current flow to load
Inventor: LANGHAMMER MANFRED DIPL ING
IPC: H02H11/00
Filed: 1989-09-09
Abstract: A circuit for protecting a load against a reverse voltage connection comprises a power MOSFET (V1) whose shunt diode (1D) permits normal current flow when the load is correctly connected. A bistable element operating as a compressor (K) monitors the voltage drop across the diode and drain source path of the MOSFET. Should a reverse current caused by wrong polarity, reverse discharge of other capacitors or parallel connected power sources occur, the drain source path is shut off and no significant current can flow into the load. USE/ADVANTAGE - Ensures reliable low loss interface for protection of polarity sensitive devices. Superior to diode/relay combinations when several sources are present in network.
Patent DE-3931887-A1 (DE)
Title: Video image memory system - allows outputs from two cameras to be stored simultaneously for processing for analysis
Inventor: MIERAS HERBERT JOHN
IPC: G06T1/60
Filed: 1989-09-24
Abstract: A video monitoring system of the type used in mfg. systems views an object by a pair of video cameras (6, 7) set at different angles. The system has a microprocessor based unit operating to a user programme held in an EEPROM. The video unit of the system receives the output of the cameras which are digitised and multiplexed (34) to a video data selector (40). Memory modules (44, 45, 46) are coupled to the video bus lines (35-37) and allow different video field sections to be stored. The sections in the memory may be called and combined for presentation on a single display. ADVANTAGE - Allows two separate video images to be stored for analysis e.g. for quality control in mfg. process to ascertain tolerances, presence of components, etc. (17pp Dwg.No.2/7) (Printed in week 9017)
Patent DE-3933407-A1 (DE)
Title: Metallic fasteners e.g. screws and rivets - made at least partially of memory alloy in areas which are deformed during fastening
Inventor: RENZ RAINER DR
IPC: F16B43/00
Filed: 1989-10-06
Abstract: Metallic fasteners such as screws, rivots, clamps, washers etc. are made of memory alloy material at least in the areas which are subjected to diformation during the fastening stage. The memory alloy is a Ni-Ti-based alloy, an Fe-based alloy; Cu-based alloy or a Ni-Ti-Cu-based alloy. After assembling and tightening the fastener in its martensitic structure, the assembly is heated to convert into an austenitic structure which returns the fastener to its original shape. ADVANTAGE - Parts can be more safely held together as the memory alloy prestresses the fastener as it regains its initial dimensions.
Patent DE-3935987-A1 (DE)
Title: Appts. for peeling of thin concentric plastic layers - has two concentric tubes, stationary for guidance, for rotating peeling knife and threaded clamping cheeks
Inventor: WOEFFLER WOLF ING GRAD
IPC: H02G1/12
Filed: 1989-10-28
Abstract: Device for peeling thin concentric plastic layers has clamping checks which have concave inner faces with threads to produce forward movement along the material to be peeled.  The peeling knife removes a spiral shaving as the device moves forward.  Rotation of the cutting tool is by hand initially and by a detachable, electrical power unit.  The driving system is formed of two concentric tubes, the outer one stationary and attached to the electrical power unit and the inner one drives the peeling tool. USE/ADVANTAGE - Removal of plasic outer layers from electrical cables.  The device can be hand or motor powered and is safe to use.
Patent DE-3942140-A1 (DE)
Inventor: RUILE WERNER DIPL PHYS
IPC: H03H9/02
Filed: 1989-12-20
Abstract: In-line surface wave reflector filter with measures to prevent the occurrence of direct crosstalk between the input (2) and output (4) transducers. For the first in-line track there is a second transducer system with an input (12) and output (14) transducer in which the input (2, 12) or output (4, 14) transducers in both systems have the same structures but the equal-strength signals of the direct crosstalk are in opposite phases at the output terminals of the two transducer systems.
Patent DE-4000982-A1 (DE)
Inventor: FALTER WOLFGANG DR
IPC: C11D3/48
Filed: 1990-01-16
Abstract: In a process for disinfecting and cleaning in the foodstuffs and beverages industry, a lubricant known per se is used to overspray empties, machines and/or machine parts. The cleaning and disinfecting agent is based on amines and possibly ordinary diluants or adjuvants or additives and contains at least one secondary and/or tertiary amine and/or one salt of such amines, the amine content in the total formulation being equal to 1 to 100 wt.%.
Patent DE-4005773-A1 (DE)
Inventor: HESS JUERGEN ING GRAD
IPC: H02K23/62
Filed: 1990-02-23
Abstract: A resonably priced, 2 parallel pole synchronous motor, suitable for high temperatures, for use on a direct current network, has a mechanical commutation device. This device consists of a commutator (44) located coaxially to the rotor (11) and having a number of current collectors (55) contacting the commutator (44) which corresponds to the number of phases of the motor's armature coil (10). These current collectors are fixed in a staggered arrangement at the same rotation angle at the periphery of the commutator and are connected to the armature coil (19). The device also comprises a magnetic coupling (60) which links the commutator (44) to the rotor (11) to provide synchronous rotation. The commutator (44) consists of 2 parallel plates (45, 46) insulated electrically from each another and held at the network d.c. voltage by separate slip rings (47, 48) and slip ring bushes (49, 50).
Patent DE-4005809-A1 (DE)
Inventor: GUTTENBERG FLORENZ VON DIPL IN
IPC: H05K5/00
Filed: 1990-02-23
Abstract: The control component consists of a standard relay or plug housing (1, 2) with flat pins (3, 4, 5) protruding from the relay base and acting as connecting elements for an integrated circuit system (6), located in the housing. This enables the component to be used instead of a relay in a standard plug-in socket or in addition to a group of relays in a relay box, at the place of installation and without alterations to the housing.
Patent DE-4005983-A1 (DE)
Title: Support for insertion in voids in mine - comprises fabric bag filled under pressure with fibre-reinforced cement material which then hardens
Inventor: SALDERN VON DIETRICH
IPC: E21D15/48
Filed: 1990-02-26
Abstract: The support is designed to be inserted in voids in a mine. It comprises a fabric bag filled with a hardened cement material under pressure in a fluid state. The mixing water is expressed through a filter cake which is retained in the bag and used in the hardening process. Fibrous material is added to the filter. USE/ADVANTAGE - Support material for void in mine has improved resistance characteristics.
Patent DE-4009255-A1 (DE)
Title: Simultaneous sawtooth sharpener for entire gang saw blade
IPC: B23D63/12
Filed: 1990-03-22
Abstract: Simultaneous sawtooth sharpener for entire gang saw blade
Patent DE-4009370-A1 (DE)
Title: Bobbin cross winding allowing longer bobbins to be wound - in which reciprocating motion cross-wise has sections with only one stroke smaller than bobbin length
Inventor: GEBALD GREGOR
IPC: B65H55/04
Filed: 1990-03-23
Abstract: To wind a cross wound bobbin, partic. with spun fibre yarn, the reciprocating motion to lay the yarn (16) crosswise has sections with only one stroke (24) which is smaller than the bobbin length (25). This reciprocating movement for a short period is overlaid by a total relatively slower forwards and backwards shift of the yarn guide eyelet (18) in the direction of the bobbin axis (21). The reciprocating movement is effected continuously, or given a controlled intermittent action. Between every two steps, the bobbin is partially built up at least by a length matching the amplitude of the reciprocating yarn movement during the short period. The reciprocating movement is carried out in steps broadly matching the amplitude of the stroke motion during the short periods. The final bobbin shape is determined by control of the slow forwards and backwards shifts. ADVANTAGE - The method allows longer bobbins to be wound, without increasing the load on the yarn either on winding or unwinding.
Patent DE-4009864-A1 (DE)
Title: Yarn twisting machine - has yarn guide which acts as thread brake
Inventor: KALLMANN JUERGEN DIPL ING
IPC: D01H13/18
Filed: 1990-03-28
Abstract: Yarn twisting machine is provided with a yarn guide which also operates as a brake cap. The assembly wound package is mounted on the centre, and has a hollow spindle to accept yarn at the top. This is revolved and brought out at the end plate, then over the balloon separator, as yarn. The yarn guide is slotted in an arc less than the total circumference, for threading purposes, and held on an expanding bracket to move up and down. The cap section, lined with sintered material, is designed to fit against the spindle end and trap the yarn, in the event of a broken end, or at the end of the reel. ADVANTAGE - The system is economical and efficient.
Patent DE-4012470-A1 (DE)
Title: Relay contact protector in car network - is for relay with break and make contacts, conductively coupled to consumer appliance
Inventor: HERMANN DETLEV
IPC: H01H9/54
Filed: 1990-04-19
Abstract: The protector has a current source and an electric consumer appliance, coupled by a relay to the current source. Parallel to the relay is a semiconductor switch to connect the consumer appliance to the current source, while a control circuit for the semiconductor switch also connects the consumer appliance to the current source via the switch, after the connection has been broken by the relay. - The relay (RS) has a break contact (KO) and a make contact (KS). The electric consumer appliance (L) is conductively coupled to one of the contacts, and the control circuit is controllable by the respective other contact. The semiconductor switch (TL) pref. couples the consumer appliance to the source simultaneously as the relay. - (10pp Dwg.No.1/5)
Patent DE-4014387-A1 (DE)
Title: Ascertaining actual value of internal voltage of async. machine - deriving ohmic or inductive voltage drop in each winding from measured external machine voltage
Inventor: WIMMER JOHANN DIPL ING
IPC: G01R31/34
Filed: 1990-05-04
Abstract: The external machine voltage is measured. The ohmic or inductive voltage drop in the separate windings is ascertained on the basis of the current flow and speed of current charge in the individual windings of the async. machine. The drop is derived from the external voltage. The total machine voltage (UM) including the current-dependent voltage drops at a resistance (RV) and inductance (Ldelta) can be tapped at the motor terminals. The voltage at the main unductance (Vi) represents the actual regulating value. For an n-phase async. machine the voltage drop is tapped phase-correct for each 360 deg./(2xn) motor voltage sector. USE - Tacho-less regulation of current in async. machine.
Patent DE-4019673-A1 (DE)
Title: Switching between pair of processor units of common bus
Inventor: REPETTO GIOVANNI
IPC: G06F11/20
Filed: 1990-06-20
Abstract: A computer system has a number of dedicated single processors (SC1-SCn) that are coupled onto a communication bus (MB) that is modified to allow the interconnection to be made via switching stages (SW1,-SW/n). Further switching units (SWA1-SWAN) are coupled between the processors and the associated switch modules. The system provides detection of a fault in a processor and provides reset. The system also isolates the faulty processor by interrupting the communication line between the processor and bus and also interrupts the power supply . Processors work in a master-slave mode.
Patent DE-4027404-A1 (DE)
Title: Nitric oxide oxidn. in gas stream by scrubbing with nitric acid - contg. nitrous acid by desorbing of acid cpds. into gas and replacing nitrous acid
Inventor: CURTIUS FRITZ
IPC: B01D53/56
Filed: 1990-08-30
Abstract: In the oxidn. of NO in a gas stream by scrubbing with HNO3, the new features are that (a) dil. HNO3 contg.  HNO2 is used:  (b) HNO2 and HNO3 are desorbed into the gas stream in scrubbing, due to the higher partial pressures in the liq; and (c) the desorbed HNO2 in the scrubbing liquor is replaced. Also claimed is the appts. Pref. oxidn involves the following reactions. HNO2 + HNO3  + H2O (I), NO + NO2 + H2O  (2) 2 HNO2 + 2 HNO3 =4NO2 + 2 H2O (3). Scrubbing is carried out in 1 or 2 stages. In 2-stage operation, HNO2 and HNO3 are vapourised  from the scrubbing liquor in stage 1; and pt. of the NO and NO2 in the gas stream are removed (equation 2) in stage 2, to form HNO2, and the liquor is recycled to stage 1. A dwell . stage may be used between stages 1 and 2 for oxidn.  (equation 1). In the dwell stage, the surface area for reaction is increased, pref by using exchange inserts. USE/ADVANTAGE- The process is useful for oxidising NO to NO2 in process gas or flue gas from combustion. The HNO2 is replaced continuously and H2O2 consumption is reduced.
Patent DE-4031597-A1 (DE)
Inventor: STURM WERNER DR
IPC: D21C9/16
Filed: 1990-10-05
Abstract: A process for low-chlorine bleaching and delignification of pulp is described, a pulp prebleached in an at least two-stage bleaching sequence being treated in an extractive final bleach separately with an aqueous solution of cyanamide and an alkaline solution of hydrogen peroxide. In this way, pulps of high degrees of whiteness can be produced in a chlorine-free final bleach.
Patent DE-4036581-A1 (DE)
Title: Steam trap with float valve - has sealed housing for valve which controls outflow of condensate
Inventor: STOYE BERND
IPC: F16T1/24
Filed: 1990-11-16
Abstract: The steam trap has a body (1) with an inlet (3) and an outlet (4). A sealed housing (2) which is fastened to the side of the body (1) encloses a float valve. The float valve has a cylindrical body (10) connected to the outlet passage (8,4) of the main body. This cylindrical body has an opening (14) which forms a valve seat with the valve head (25) being attached to the lever (20). Any condensate collects in the housing (2) and as the level of this condensate rises the float (15) moves upwards and actuates the lever (20) to open the valve to allow the condensate to flow through the cylindrical body to the outlet (4). A thermostatically controlled steam vent (28) is mounted on the cylindrical body.
Patent DE-4036584-A1 (DE)
Title: Vehicle steering accumulator loading valve for elevated pressures
Inventor: DEHIO GOTTFRIED
IPC: G05D16/16
Filed: 1990-11-16
Abstract: The accumulator loading valve for elevated pressures comprises pump connection (1), a reservoir connection, a priority valve (7) between a consumer connection (3) and an accumulator connectin (2), and a pilot valve (4) controlled by the accumulator pressure.  The operating piston (24) of the two-position pilot valve is pre-stressed by a spring (28) having a constant spring rate and the cross-section of a valve inlet (19) of the pilot valve being substantially smaller than the cross-section of a valve discharge passageway (20) of the pilot valve. The spring acts on the piston through a spherical joint coupling.
Patent DE-4040526-A1 (DE)
Title: Electrocoating bath for gold alloys - using auric cyanide complex and alloy salt of alkyl:sulphonic or hydroxy:alkyl:sulphonic acid
Inventor: EMMENEGGER HEINZ
IPC: C25D3/62
Filed: 1990-12-18
Abstract: Electrolytic bath for pptg. Au alloy coatings in which the Au as Au3+ cyanide complex and the other alloying elements as salts of alkylsulphonic or hydroxyalkylsulphonic acid are present in the bath. The acid salts have a carbon chain of 1-6 atoms. The bath also contains alkylsuphonic or hydroxylalkyl-sulphonic acid. ADVANTAGE - The gold and other alloying elements are present as esp. stable complex ions in a strong acid soln
Patent DE-4100898-A1 (DE)
Title: Sliding roof for vehicle - makes use of sliding link to close roof against seal
Inventor: SROKA TADEUS DIPL ING
IPC: B60J7/043
Filed: 1991-01-15
Abstract: The upper ridge sliding roof is for a vehicle. It incorporates a transverse seal (19) at the front of the roof with two sealing surfaces which in the closed position are engaged by the roof cover (2). The roof is supported by a holder (8) which slides into a link element (11) as a screw (7) is displaced upwards in a vertical slot (8a) and a second screw (16) reaches the locking point (15). USE/ADVANTAGE - Sliding roof on a vehicle which does not impose undue loads on the seal when closed and which does not create wind noise when open at high speeds.
Patent DE-4102361-A1 (DE)
Title: Low-viscosity liq. crystal mixts. - contain 4-chloro:phenyl ester(s) of 4-alkyl-benzoic or-cyclohexane carboxylic acids, and 4-substd. benzonitrile(s)
Inventor: HITTICH REINHARD DR
IPC: C09K19/46
Filed: 1991-01-26
Abstract: Liq. crystal mixts. (I) are claimed, contg. cpd(s) of formula (II) and highly dielectrically positive cpd(s) of formula (III), (IV) and (V) with wt. ratio (II):(III/IV/V) = (1:10)-(10:1); R1, R2 = 2-12C linear alkyl, opt. with a CH2 gp. replaced by O or CH=CH; ring A = 1,4-phenylene or trans-1,4-cyclohexylene; r = 0 or 1; X, Y = CH or N; X', Y' = CH2 or O; A1, A2 = as for ring A; L = H, or F. (I) contain at least 50 wt. % (II), (III), (IV) and/or (V) pref. 10-40 wt. % (III), (IV) or (V) and at least 15 wt. % (II) pref. (I) contain at least 25 wt. % of one or more cpds. of formula R1-CYc-COOPhe-Cl (IIA), R1-Cyc-Phe-COO-Phe-Cl (IIB) and/or R1-Cyc-Cyc-COO-Phe-Cl (IIC), R1, R2 = 2-7C n-alkyl. USE/ADVANTAGE - Mixts. (I) are useful for electro-optical applications (claimed). The invention provides stable LC mixts. (I) with improved response time and low threshold voltage, etc. and low viscosity (w.r.t. prior-art mixts).
Patent DE-4105404-A1 (DE)
Title: Cooling system for holding a chemical reaction at a required temperature - has three heat exchangers connected to cooling pump
Inventor: THIER BERND DIPL ING
IPC: B01J19/00
Filed: 1991-02-21
Abstract: The chemical reaction occurs in the reactor (R1) which is held at the required reaction temperature either by heating or by cooling. The reactor can be connected to any one of three heat exchanges (W1-W3) which are held at temperatures of 180 deg. C, 40 deg. C and -15 deg. C respectively. The three heat exchanges are connected in parallel to a cooling circuit, in which a cooling liquid is circulated by a pump (P1) and held at the required pressure by nitrogen which is supplied through a pressure control valve (PC). The high temperature heat exchanger (W1) is supplied with high pressure steam, the medium temperature heat exchanger (W2) is supplied with cooling water, and the low temperature heat exchanger is supplied with brine. USE/ADVANTAGE - Maintaining a chemical reaction at the required temperature between -20 deg. C and 200 deg. C.
Patent DE-4110957-A1 (DE)
Title: Pistol with interchangeable barrel - has sliding cam actuated by control piece to lock barrel to breech
Inventor: PETERS FRANZ-JOSEF
IPC: F41A5/04
Filed: 1991-04-05
Abstract: The pistol is designed to be fitted with either of two barrels in order to use ammunition of two different calibres. The barrel (10) is locked to the pistol breech by a sliding cam (14) which is in the shape of a parallelogram and has endfaces (36,38) inclined to the axis of the barrel (10). A control piece (16), which actuates the lock, is rigidly attached to the pistol breech. The control piece has a recess (22) with inclined end walls (24,32) and a transverse ridge (28) with an inclined face (26). When the barrel is inserted into the breech the cam (14) is supported on the ridge (28) and locks the barrel to the breech. Moving the barrel forward allows the cam to slide clear of the ridge (28) and slide into the deeper part of the recess (22) to release the lock. USE/ADVANTAGE - Pistol with interchangeable barrel which enables ammunition of two different calibres to be used.