baber/WOPTO huggingface dataset:
Patent DE-3915618-A1 (DE)
Title: Method for converting thermal energy into mechanical work in a turbo-energy block using carbon dioxide as working fluid
Inventor: BOZOVIC MILOMIR
IPC: F01K25/10
Filed: 1989-05-12
Abstract: The invention relates to the conversion of thermal energy into mechanical work, principally in a turbo-energy block or process. To date, such known devices, which use water or steam as working medium, have the disadvantage that such devices have only a very low efficiency. The object of the invention is to provide a device having a substantially increased efficiency. The object is achieved when use is made as working medium of carbon dioxide, or its superheated vapour, which is stable in a thermodynamic circulation process, does not attack the materials or the environment and permits the thermodynamic efficiency to be increased up to more than 90@. The physical and chemical parameters of the carbon dioxide permit economic production of the working blocks together with essentially smaller dimensions.
Patent DE-3921018-A1 (DE)
Title: Video muting circuit for a video cassette recorder in conjunction with a video camera
Inventor: KIM DONG YOUNG
IPC: H04N9/74
Filed: 1989-06-27
Abstract: A video muting or fading system for a video cassette device in conjunction with a video camera is specified, this system making it possible that an image appears gradually on the screen at the beginning and is faded out or disappears in each case at the end of the recording so that the optical impression of opening and closing or lifting and dropping of a curtain is conveyed on the screen. The video muting circuit comprises a key input device for selecting a muting function, a device for muting a video signal output by a camera section to a video cassette recording section, a device for dividing the video signal into vertical and horizontal synchronisation signals, and a signal processing device which outputs a control signal to the muting circuit as a ratio to a period which corresponds to the number of horizontal synchronisation signals which is equal to that of the vertical synchronisation signals as input to the signal processing device.
Patent DE-3925961-A1 (DE)
Title: Optical fibre drawing device - with seal opening for variable cross=section
Inventor: MOETTER ADOLF
IPC: C03B37/029
Filed: 1989-08-05
Abstract: Glass fibre is drawn to an optical fibre in a tubular vessel, sealed at both ends. The seal at the bottom end has two sliders with prismatic cut-outs at the facing sides, and one slider has a horizontal slot in which the other can enter. The cut-outs thus form a square hole with a variable cross-section.  Pref. one slider (8) has a slot (10) for the second slider (9) to enter with its web (11). Both sliders have a triangular cut-out (12,13) to form a square hole. Both are guided in grooves (16) of a ring (14) which is hollow for a cooling water circulation. A turn of the disc (19) effect a change of the square hole by a radial movement of the pins (17,20). ADVANTAGE - Minimises the clearance between fibre and seal, yet permits enough protective gas to pass and keep out any contaminants.
Patent DE-3926762-A1 (DE)
Title: Refuse delivery to incineration system - with preparation in two or more parallel lines and delivery to intermediate hopper for batching
Inventor: EHLERT JOACHIM DIPL ING
IPC: B03B9/06
Filed: 1989-08-12
Abstract: The method homogenises and delivers refuse to an incineration system. This is weighed out in containers (32), which are delivered marked accordingly. The refuse is prepared in two or more parallel lines and delivered to an intermediate hopper (44). From this a mixture of the different batches is delivered by conveyor belts (46, 47) into the charging hoppers (48) of the system. ADVANTAGE - Allows continuous and automatic control of quantity and proportions of material fed to system.
Patent DE-3929844-A1 (DE)
Title: Pump aggregate for pressures above 100 bar - makes use of control distributor shaft working with hydraulic motor
Inventor: EICKMANN KARL
IPC: F04B43/067
Filed: 1989-09-08
Abstract: The pump aggregate has several delivery chambers and produces a pressure above 1000 bar.  It can handle non-lubricating fluids.  It has a control distributor arranged between+. the low pressure pistons driving the high pressure pistons and a medium pressure pump of 100 to 800 bar. The distributor shaft (17) adjoins a hydraulic motor (97) and during the return of the medium pressure flow engages the drive of the hydraulic motor. USE/ADVANTAGE - High pressure - above 1000 bar - pump which avoids an expensive and space consuming reduction gear between the flow running pump and its prime mover.
Patent DE-3930592-A1 (DE)
Title: Stud setting gun - with piston brake made of a specified elastomer
Inventor: KELLNER GERD DR ING
IPC: B25C1/14
Filed: 1989-09-13
Abstract: A stud or nail setting gun with a drive piston (6) terminates its stroke by impact of the piston on a piston brake (7). The latter is made of an elastomer and is designed as a ring which is pushed in the piston guide sleeve (5) with a radial prestress until it abuts on the stud guide (8). This elastomer should have a very low recoil elasticity, pref. below 10%. The following materials are recommended as suitable: Butyl rubber (IIR), fluoro-rubber (FPM), fibre reinforced material or metal braiding. ADVANTAGE - This results in a uniform flush setting of studs and nails and eliminates the hard axial buffer impact.
Patent DE-3933932-A1 (DE)
Title: Di:hydroxy-di:benzo-phenazine(s) - prepd. by heating corresp. di:sulphonic acids or their salts in alkaline alcoholic medium, e.g. in mixt. of glycol and alkali hydroxide
Inventor: SCHUETZE DETLEF-INGO DR
IPC: C09B17/04
Filed: 1989-10-11
Abstract: Hydroxy-dibenzophenazine derivs (I) of formula (II) (with R = 0H) are produced by heating the corresp disulphonic acids (III) (II; R = S03H) or salts thereof in alkaline alcoholic medium, opt contg water. Suitable alcohols are glycols, ie  methyl, ethyl, propyl, isopropyl, butyl, diethylene, triethylene or tetraethylene glycol, PEG 300-600, propylene, dipropylene, tripropylene, tetramethylene glycol, pentaglycol, hexamethylene glycol, 2-methyl-2-propyl-propane-1,3-diol, 2,2-diethylpropane-1,3-diol, 2-ethylhexane-1,3-diol, 2,5-dimethylhexane-2,5-diol, octadecane-1,12-diol or 1-8C alkanols, or mixts thereof with water; amt of alcohol is 1.5-20 (pref 2-8) pts wt/1pt wt (III); amt of alkali (pref K0H and/or Na0H) is 0.4-10 (pref 1-3) pts wt/1 pt wt (III); esp (I) is 8,8'-dihydroxynaphthazine. USE/ADVANTAGE - Cpds (I) (esp 8,8'-dihydroxynaphthazine) are useful as dyes and pigments and as intermediates for such dyes (eg tetra-halogenated derivs) (I) opt by this process can be used without further purification (contrast prior-art processes, which require several recrystallisations or sublimation to remove by-prods.
Patent DE-3940866-A1 (DE)
Title: Mixing heads for polyurethane foam - have rapid operation by spring-loaded needle valve for each liq. which only opens while liq. is sufficiently pressurised for injection
Inventor: MICHAEL VOLKER
IPC: B29B7/76
Filed: 1989-12-11
Abstract: A liquid circulation block for mixing heads, and partic. those with parallel jets in polyurethane foam appts. has a circulation nozzle with needle which closes against a seating in a flow bore; this needle has an annular surface exposed to the pressure of the liquid to open the nozzle and is spring-loaded in the direction of closure. ADVANTAGE - The design eases the normal problems of severe pressure drop after each injection, corresp. need for renewed pressure build-up and hence long cycle time and low output rate. In partic. the pressure only drops to e.g. 30-40 bars.
Patent DE-3940867-A1 (DE)
Title: Brake light system for vehicle with antilock braking system - flashes brake lights on and off during heavy braking by using ABS pulse generator to control brake lights as well as braking force
Inventor: WAGNER RAINER W
IPC: B60Q1/44
Filed: 1989-12-11
Abstract: The anti-lock brake light system uses periodically flushing brake lights to warn following drivers. The periodic flashing of the brake lights takes place automatically in periodic relationship to the ABS effect. The pulse generator or oscillator used in the ABS-system to pulse the braking tone applied to the wheels is also used here to pulse the brake lights. During gentle braking, the brake lights remain on. During heavy braking when the ABS-system comes into operation, the brake lights are pulsed on and off. ADVANTAGE - To provide drivers following behind with warning that vehicle in front is braking strongly.
Patent DE-4001078-A1 (DE)
Title: Light beam splitter for camera - uses half silvered mirror and separate compensating device to improve picture quality
Inventor: MUELLER ROLF DR
IPC: G02B27/14
Filed: 1990-01-12
Abstract: The arrangement comprises a focusing lens (2) and main lens system (4), half silvered mirror (6), compensation lens (8) and camera (10) along main axis (3), with magnifying lens (12) and viewer (14) along axis (5). A compensation device (8) exists in line with the semi-transparent mirror (6) to compensate for errors. Pref. the device should be rotatable and of the same refractive index as the mirror (6). USE/ADVANTAGE - Viewfinder system with video cameras. Better quality images.
Patent DE-4001449-A1 (DE)
Title: Arrangement for monitoring reflectance of e.g. vehicle lights - has  light source, photoelement built in place of standard light filament in incandescent lamp
Inventor: SANDIG HELLFRIED
IPC: G01M11/00
Filed: 1990-01-19
Abstract: The arrangement for monitoring the reflection quality of light reflectors contains at least one light source and at least one measurement device for determining the reflection quality. The reflector (1) is arranged in the region of radiation from the light source. A photoelement (4) connected to the measurement device (8) and arranged at the focal point of the reflector forms part of a measurement transducer (3) in the form of an incandescent lamp with the filament replaced by the photoelement.
Patent DE-4002208-A1 (DE)
Title: Detecting misfiring cylinders in IC engine - using existing lambda probe and evacuation of smoothed, averaged amplitude w.r.t. threshold
Inventor: KLENK MARTIN DIPL ING
IPC: G01M15/10
Filed: 1990-01-26
Abstract: Identifying a misfiring cylinder involves measuring the signal of a lambda probe and determining the amplitude of the signal component with the same frequency as the camshaft. Successive amplitude values are averaged and smoothed and when the smoothed average value exceeds a threshold the presence of misfiring is detected. The amplitude is determined from the max. and min. probe signal values for each 720 deg. rotation of the crankshaft. ADVANTAGE - Simple, reliable method using existing probe.
Patent DE-4006334-A1 (DE)
Title: Retaining disc fixable on bolt - has six radially inwardly aligned retaining tongues engaging on bolt
Inventor: BOCK ANDREAS
IPC: F16B21/20
Filed: 1990-03-01
Abstract: The retaining disc can be fixed on a bolt. It has several radially inwardly aligned retaining tongues (2) whose free ends engage securely round the bolt. At least two preferably three resilient support tongues (4) are provided spaced out at an angular distance from each other between the retaining tongues (2) and are inclined oppositely to the latter from the plane of the retaining disc (1). USE - The disc can be supported securely on the abutment of a bolt without the need for axially resilient discs.
Patent DE-4007128-A1 (DE)
Title: Inflatable foil bag for packaging - has two foils each with integral valve sections avoiding leaking seals
Inventor: NORDHUS HERMANN
IPC: B65D81/05
Filed: 1990-03-07
Abstract: The inflatable foil bag has an air inlet channel projecting into the inside of the bag and acting as a self-closing valve through the pressure inside the bag. The bag can be made from two foils (4) placed one on top of the other. Each foil has a foil bag section (3) and a valve section (1) which are connected together in one piece and adjoin each other along a peripheral break line (5). The edges of the foils (4) are welded together and the valve section (1) projects into the inside of the bag to act as the automatic valve. The valve section is pref T-shaped and can be formed from a part of the foil bag section. USE/ADVANTAGE - The one-piece bag and valve avoids the need for welding areas which could cause leakage.
Patent DE-4008737-A1 (DE)
Title: Transfer control appts. for farming implement towed by tractor - uses multi-function lever with hydraulic control circuitry enabling driver to control attached machinery
Inventor: GATTERMANN BERND
IPC: A01C7/10
Filed: 1990-03-19
Abstract: The operating machinery (14) is connected to an operating lever (13) on the tractor (2). Pref., the lever (13) and machinery (14) are connected to control equipment (11) via a conductor (15) which operates hydraulic control valves.
Patent DE-4008770-A1 (DE)
Title: Cavity resonator with TE wave-type coupling - provided by slot in side wall of cylinder
Inventor: ROSENBERG UWE DIPL ING
IPC: H01P7/06
Filed: 1990-03-19
Abstract: A cylindrical cavity resonator (HR) has a coupling aperture for an existing TE wavetype. The magnetic field lines of the TE11n waveform are formed tangentially to the cylindrical surface of the resonator. In the side wall of the unit a coupling slot (K) is located in the direction of the gamma component of the magnetic field. Ideally the slot is located at the max. magnetic field point. ADVANTAGE - Provides coupling between resonators.
Patent DE-4008886-A1 (DE)
Inventor: HERRING WILLIAM PETER
IPC: B65D47/34
Filed: 1990-03-20
Abstract: A dispenser (10) used to dispense liquid (18) eg. soap, from a large variety of types of bottles (28) comprises a dispenser head (16), a pump (12) and a bottle holder, the bottle holder having a sleeve (32) which fits over the neck of the bottle (28). A latch (38) is resiliently biased against the bottle neck (26) such that the bottle neck (26) is clamped between the latch (38) and part of the sleeve (52) with the latch (38) preferably passing through a slot in the sleeve (32). Embodiments are shown wherein the latch (38) is free to slide and wherein the latch (38) is pivotally mounted. A long flexible dip tube (24) is used to extract liquid (18) from bottles (28) of varying heights. <IMAGE>
Patent DE-4009807-A1 (DE)
Title: Automatic production of miniature solder joint - using controlled supply of solder to heated and fluxed connection point on electrical component
Inventor: MUENZER ANDREAS
IPC: H01G4/228
Filed: 1990-03-27
Abstract: The process is automatic for production of a mini solder point when soldering a current conducting wire (3) to the covering of electric components. First a flux medium (6) is connected to the wire (3) or component cover (2), whereby a portion (4) of the wire (3) is completely covered by the flux medium (6). Then the component (1) and the wire (3) are heated to the solder temperature. Finally the solder is passed, in a controlled quantity, onto a spot on the portion (4) of the wire (3). The top of the component cover (2) is attached along the portion (4) of the wire (3) with minimal spread (5) of the solder. USE/ADVANTAGE - Automatic production of solder stop which is less expensive than hand soldering. Does not reduce solder quality and minimises spreading of solder.
Patent DE-4011220-A1 (DE)
Title: Automatic textile frame - has end unit to centralise all auxiliary functions and a transport conveyor serving series of units along the frame
Inventor: WIRTZ ULRICH DR ING
IPC: B65H67/06
Filed: 1990-04-06
Abstract: Automatic textile machinery, in which a series of units are aligned on a frame. A transport system for cops has a central service unit with passageways for the cops, situated at the end of the frame. The automatic winder (1) winds from cops (6) to reels (19). The cops are mounted on individual pallets (7) and are transported to a series of units (5) along the frame. The transport conveyor (8, 11, 25) circulates around the frame and into the end service unit (2), without interference to the several other functions which are contained within the unit. Sensors with the necessary linkage, direct the cops (6) into the respective channels (11, 13, 16, 25). ADVANTAGE - The machines can be constructed to occupy less space.
Patent DE-4017374-A1 (DE)
Title: DC voltage converter supplying electronic appts. - uses controlled switch and associated control circuit responsive to supplied input voltage
Inventor: KRAHL BURGHARD DIPL ING
IPC: H02M3/335
Filed: 1990-05-30
Abstract: The voltage converter provides at least one output voltage (UA1, UA2) from a supplied input voltage (UE) which varies over a given range, using a controlled switch (S) with a switching-in duration determined by the input voltage (UE).  The control circuit (St) for the switch (S) is provided with a control current (IS) obtained directly from the input voltage (UE) when this is below a min. value and a second current signal (IS) obtained from the input voltage (UE) via a voltage divider (R1,R2,Z) above this min. value. The switching-in duration of the switch (S) is reduced as the input voltage (UE) increases. USE/ADVANTAGE - Providing protected supply voltage for electronic appts.  Practically constant voltage within input voltage range without using potential bridging components.
Patent DE-4018704-A1 (DE)
Title: Mfr. of rolled and/or coated metallic catalyst substrate - comprises smooth sheet having lengthwise ridge and groove structure, which is stacked and/or rolled and placed in housing
Inventor: BOLTE WILHELM DIPL ING
IPC: F01N3/28
Filed: 1990-06-12
Abstract: Sheet strip metal is corrugated in the direction of the strip; identical lengths of coated or uncoated corrugated strip are folded together in an S-shape to form the catalyst core; and the catalyst core is then inserted into the catalyst shell. Strip metal (1) is unwound (2) and passed through corrugating rollers (3,4) before being cut (6) to length. A number of lengths (7) are then folded S-shaped (c,d) to form a core (e), allowing passage of exhaust gases along the corrugated cavities, which is cut to lengths at regular intervals (10). USE/ADVANTAGE - The process enables mfr. of longer catalyst cores than would be possible by bending and rolling the same strip metal substrate along its shortest width.
Patent DE-4020603-A1 (DE)
Title: Compatibilising agent for ABS resin and polyolefin - is mixt. of graft copolymer of unsatd. carboxylic acid in polyolefin and terpolymers of hydroxy, aromatic and cyano- vinyl monomers
Inventor: EZAKI YUOICHIROU
IPC: C08L55/00
Filed: 1990-06-28
Abstract: Agent (I) comprises (A) 10-90% (all pts.wt.) modified polyolefin obtd. by graft polymerising 0.1-1.2 mol.% alpha, beta-unsatd. carboxylic acid or deriv. with a polyolefin.  (B) 90-10% compolymer of (B1) at least one OH-contg. vinyl monomer, (B2) at least one aromatic vinyl monomer, (B3) at least one CN-contg. vinyl monomer. USE/ADVANTAGE - (I) for prepn. of shaped articles, e.g., electrical, electornic, or mechanical parts, vehicle parts. (I) have improved impact toughness while retaining mouldability, flowability and processability.
Patent DE-4021265-A1 (DE)
Title: Use of satd. sec. branched alcohol - as additive in washing compsn. to reduce foaming
Inventor: HASENCLEVER KASPAR D DIPL ING
IPC: C11D3/00
Filed: 1990-07-04
Abstract: Satd. sec. alcohols with branching in the alpha-position to the OH gp. and with mol. wt. 210-300 are used as additives to washing compsns. Pref. alcohols are 2-hexyldecane-1-ol or 2-octyldecane-1-ol, used in amt. of 3-20 (5-10) wt.%. ADVANTAGE - The alcohols reduce foaming, without reducing, or even raising, the washing power, e.g. the loosening of fats, have no smell, and are relatively easily biologically degradable. More highly conc. washing compsns. can be prepd., reducing the amt. needed, and lowering the cost of packaging, transport and storage.
Patent DE-4022653-A1 (DE)
Title: Lost wax casting process - using wax pattern moulded in evacuated vulcanised silicone rubber negative mould
Inventor: HAEUSLE MICHAEL
IPC: B22C7/02
Filed: 1990-07-17
Abstract: In the lost wax casting of precision castings, esp. jewellery, (a) the mould, used to form the wax pattern, is made of a castable and vulcanisable silicone rubber which is initially in the form of a fluid mixt. immediately after mixing its two components or in the form of a fluid activated mixt. and which, under the action of the second component or of heat, cross-links in a few mins. to hrs. to form a vulcanisate of low hardness, high extensibility and very high tear resistance; (b) the vulcanised ` silicone rubber mould has venting channels; and (c) hot wax is injected into the pre-evacuated rubber mould. USE/ADVANTAGE - The process is useful for prodn. of wax, plastics or metal precision castings. It gives increased fineness of the reproduced original pattern shape and surface quality.
Patent DE-4023322-A1 (DE)
Title: Observation device for submarine - provides optical information from video camera in glass dome to evaluator via optical fibre
Inventor: TEGEL MAREK DR ING
IPC: B63G8/38
Filed: 1990-07-21
Abstract: A viewing tube for a submarine (1) comprising an optical observation sensor (2) which floats freely on the surface of the water and takes pictures of the surroundings, and transmits the image information via a tension removing optical fibre (3) to an image analyser (4) in the submarine. The sensor comprises a video camera on a stabilised plate. The camera is protected by a transparent dome. USE/ADVANTAGE - Can be used with submarine submerged a great depths. Submarine cannot be located by detecting position of sensor. Steadier image since not attached to vessel.
Patent DE-4023928-A1 (DE)
Title: Safety helmet for motorcyclist - has liq. shock absorbing system and comprises tow aluminium shells
IPC: A42B3/06
Filed: 1990-07-27
Abstract: The helmet comprises an outer shell (1) and an inner shell (2) which corresp. with each other. Between the two shells is a narrow intermediate space (3) which is completely filled with fluid. This space is closed in an airtight manner on the inner shell (2) eedge (4), and has a width of between 0.5 and 1mm. As the fluid is not compressible, that in the intermediate space is forced to look for a replacement space. By reason of the thus produced pressure, and with the edge closure of the two shells, the shell wells are widened. The energy used for this can, furthermore, be used for absorption of collision force energy. USE/ADVANTAGE - To enhance the shock absorption characteristics of a motor cyclist's helmet.
Patent DE-4029410-A1 (DE)
Title: Cavity resonator with temp. compensation -  using bimetallic plate with higher heat expansion coefft. metal lying on outside
Inventor: KNIPP MICHAEL DIPL ING
IPC: H01P7/04
Filed: 1990-09-17
Abstract: The temp. compensation for the cavity resonator uses a bimetallic plate forming part or all of the wall (W2) which faces the inner conductor or the loading stamp (BSt). The bimetallic plate is arrnaged so that the metal with the greater heat expansion lies on the outside. Pref., the wall is provided by a bimetallic plate with a disc (5) having a greater heat expansion coefficient attached to the wall on the outside, in alignment with the free end face of the inner conductor or the loading stamp. USE/ADVANTAGE - Microwave applications with full temp. compensation whether tuned or not.
Patent DE-4029848-A1 (DE)
Title: Water supply system with variable vol. tank - whose lid supports weight to keep water under pressure
Inventor: ELLER ELFRIEDE
IPC: B67D1/00
Filed: 1990-09-20
Abstract: The water supply system consists of a variable vol. container (2), which is filled with water and is placed inside a tank (2). The open upper end of the container is sealed with a rigid lid (3) on which a weight (4) is placed. An outlet pipe (5) extends vertically from the lid and is connected to a tap (9) and supply pipe (6). The weight exerts a pressure on the water which is forced upwards through the outlet pipe to the tap and supply pipe. USE/ADVANTAGE - For caravans, camping sites etc., with simple pressure maintenance.