baber/WOPTO huggingface dataset:
Patent DE-3936392-A1 (DE)
Title: Current stabilising circuit e.g. for amplifiers - has two transistor emitters coupled to reference point, and first transistor base linked to second transistor collector
Inventor: BOEHME ROLF DR
IPC: G05F3/30
Filed: 1989-11-02
Abstract: The emtiters of first two transistors (T1,2) are coupled to a reference point (N). The first transistor (T1) base is linked to the second transistor (T2) collector, and its base is coupled to the first transistor collector. A third transistor (T3) base is connected to the first transistor collector via a resistor (R1) and via a second resistor (R2) to the second  transistor collector. The third transistor emitter is coupled to the reference point via a third resistor (R3). The third transistor base is coupled to a first controllable  current source, and its collector to a second one. An amplifier (V1) input is connected to the third transistor collector, while its output leads to both current sources. USE/ADVANTAGE - Electronic amplifier circuits with course of output current such that temp. and component dependence is excluded.
Patent DE-3937189-A1 (DE)
Inventor: KRESSE FRANZ
IPC: B62B3/10
Filed: 1989-11-08
Abstract: A hospital disinfection trolley (1) may be fitted out for proper disinfection cleansing if the clean regions of the disinfectant solution are spatially arranged above the contaminated regions. To this end the container (2) for the disinfectant solution has the form of a closed tank with an outlet cock (6) and with the tank floor (7) sloping towards the outlet cock (6) and the contaminated material containers (3) are fitted beneath the outlet cock.
Patent DE-3938595-A1 (DE)
Title: Blow moulding cheap sealed car lights - by closing two mould tools bound extruded tubing, cutting off tube, blowing it out to mould, cooling, demoulding and cutting off end
Inventor: VICARIO FRANCO
IPC: B29C69/00
Filed: 1989-11-21
Abstract: Car lights are produced by (a) extruding a thermoplastic tube between two moving mould tools which have mating faces and which have the negative impression of the lamp body (b) closing the tools together (c) pressing the tube against the mould faces by applying pressurised medium to the interior of the hot tube so as to form a closed container (d) cutting off a section of the container to produce the body of a light from a single piece of polymer with an opening for a light source. Each of two tools (14) has a plate (15) to mate with the plate of the other tool over the surface (16). Each such surface (16) has an impression (17) which is the negative of one half of the light body. The two tools meet and part  horizontally. When they are separated a vertical extruder (18) enters between them and produces the thermoplastic tubing (19).  The mould (13) closes and grips the extrusion; the length of tubing is then cut off. A nozzle below is raised into line  with the tubing and it feeds compressed air into the tube (19) to press it outwards to the mould. The mould (13) is opened when the moulding has cooled, so producing a light with an enclosed shape required but closed also at the end of a side-piece (7). This is then cut off.
Patent DE-3941195-A1 (DE)
Title: Fixing roller cleaning appts. - applies flexible wiper under given tension with long edge fully covering convex surface line like knife
Inventor: PLURSCH GERALD
IPC: G03G15/20
Filed: 1989-12-13
Abstract: The appts. cleans and applies fresh sealing liq. to the surface of a fixing roller (10) in an electrophotographic printing or copying machine. A pressure block (16, 21) can be brought into contact with the fixing roller (10) to apply a lamellar absorbent coating material (12) in the opposite direction w.r.t. the fixing roller full-width and in a predetermined wrapping range. This pressure block has a chamber (7) for the sealing liq. For people cleaning stripping device (27) is mounted in-front of the pressure block. This device (27) has a flexible wiper (31) under a given bias to lie like a knife edge along the complete length of a convex surface line of the fixing roller. ADVANTAGE - Highest possible optimum use of expendable material, reduced construction with increased reliability.
Patent DE-4001959-A1 (DE)
Title: Measuring sums of gas partials for safety monitoring - applying sensor system using metal oxide semiconductors allowing specific weighting of signal
Inventor: RUMP HANNS
IPC: G01N33/00
Filed: 1990-01-24
Abstract: Homogeneous semiconductor or other sensitive gas sensors are used. Two or more sensor arrays are applied, each with one or more sensor elements, at two or more different heights.  A measure for evaluation of the partial sums is provided by the concn. differences of the gases at the arrays on the basis of different specific weightings. The latter is achieved by various doping or working temps. of the sensor elements for different reactions to the gases.  Gas entrance openings (2) can be stacked vertically in a housing (1).  Separate gas-sealed housings (3,4) are placed behind the openings and contain the sensor (6) arrays (5).  A central electronic unit (7) controls the arrays with an electrical sensor resistance and processes the measurement values. USE/ADVANTAGE - Allows contaminated ground, e.g buried rubbish dump, sewage, to be economically continuously monitored,  differentiating between levels of safe gas emission and sudden outbreaks of potentially dangerous gas.
Patent DE-4002142-A1 (DE)
Title: crew cap for plastics canister - has several aerating through-holes mutually angularly offset
Inventor: SCHIEMANN WOLFRAM PROF DR
IPC: B65D25/42
Filed: 1990-01-25
Abstract: The screw cap for plastics canisters, e.g. for petrol etc, has a annular groove (48), open to one side, away from the cap base, and an air port (50) through the cap bottom.  An internal thread on the cap corresponds to an external thread on a canister pouring spout. When the cap is fully screwed-on, it is at a  certain angular position w.r.t. the spout. The cap has two or more air ports (50,63,64), which are mutually angularly offset.  A central passage is aligned with the spout aperture. ADVANTAGE - Good air flow, even in extreme situations.
Patent DE-4004461-A1 (DE)
Title: Sheet aligning mechanism for printing machine feed - has electromagnetically operated spring-loaded tilting feed and aligning fingers with common hinged connection
Inventor: WEISBACH GUENTER DR ING
IPC: B65H9/06
Filed: 1990-02-14
Abstract: At one edge of a table (16) on which sheets (17) are deposited ready for advancing to a printing machine is an aligning mechanism with feed fingers (1) connected by common hinge pins (5) to aligning fingers (6) carrying tip fingers (3). Behind each aligning finger is an electromagnetically operated sliding stop (8) and between the two fingers (1,6) is a helical spring (7). The plunger tilts the aligning finger between impact and aligning positions each side of a vertical reference line, ready for onwards transport.
Patent DE-4004554-A1 (DE)
Title: Balancing skill testing game board - is in form of skateboard linked to computer to convert movements to signals reproduced on VDU
Inventor: MAYR GUENTHER
IPC: A63B21/05
Filed: 1990-02-14
Abstract: A playing board is in the form of a sprung foot plate (3) pivotably or movably suspended. By appropriate positioning of the foot and operating plate it can be displaced, pref. against the force of a spring (15) from its neutral output position, so that an indication signal is sent out by closing appropriate contacts (17). This signal can be processed by a computer and represented on a screen and can be used as the control command for a computer game. The player can be given rules to follow  requiring pivoting and change of direction while keeping balance. USE/ADVANTAGE - Makes game more exciting and harder to play. Can be adapted to be connected to display for different games.
Patent DE-4005057-A1 (DE)
Title: Box-shaped ceiling soffit
Inventor: HRUBY MIROSLAV
IPC: E04B9/28
Filed: 1990-02-16
Abstract: Box-shaped ceiling soffit is suspended from support structure by T-shaped suspension legs, with webs in girder groove
Patent DE-4006104-A1 (DE)
Title: Utilisation of carbon di:oxide in the synthesis of hydrocarbon(s) - by combustion of hydrocarbon-contg. waste with oxygen, cooling flue gases in waste-heat boiler and cleaning in gas purifier
Inventor: MENGES GEORG PROF DR ING
IPC: C07C47/052
Filed: 1990-02-27
Abstract: Utilisation of carbon dioxide (I) produced in the combustion of waste contg. hydrocarbons with oxygen is claimed. The novelty is that the flue gases, contg. mainly carbon dioxide and water-vapour, are cooled in a waste-heat boiler, cleaned in a suitable gas purifier. Pref. the combustion of the waste occurs with insufficient oxygen to produce a CO-rich gas mixt. Waste-hydrocarbons and water are fed into the hot flue gases contg. mainly CO2+H2O produced by the complete combustion of waste with oxygen (H2O:CO is 1.0-1.5:3) or waste-hydrocarbons and opt. water are fed in the gases to produce a gas mixt. contg. mainly CO and H2. The gases contg. mainly CO2 and H2O are hydrated after cooling and cleaning. USE/ADVANTAGE - (I) is used in the synthesis of hydrocarbons. The greater the ratio of hydrogen to carbon in the waste hydrocarbons, the more favourable the ratio of CO2 produced to the required waste hydrocarbon.
Patent DE-4006374-A1 (DE)
Title: Seven inch wide vehicle wheel - has its rim contour extending to max. width of 78 MM before moving into wheel rim bed
Inventor: BERGER HEINZ LUDWIG DR
IPC: B60B21/02
Filed: 1990-03-01
Abstract: A 7 inch wide vehicle wheel has a rim contour, which instead of moving into the rim bed directly after the inner tyre lip, continues to a max. value of 78 mm (between A and B) before then moving into the rim bed. USE/ADVANTAGE - Wheel profile for road vehicle with tubeless tyre. The wheel centre can be made flatter, improving the load carrying ability of the wheel.
Patent DE-4010629-A1 (DE)
Title: Pad for protecting hearing - has surface which matches contours of ear
Inventor: STIMM ANGELIKA
IPC: A42B1/06
Filed: 1990-04-03
Abstract: The device for protecting the hearing has each ear (5) covered by a pad (1). When this pad (1) is in position its abutting surface matches the contour of the ear and projects into the hollows of the ear. This characteristic is achieved by forming a layer of foamed resilient plastic on the inner face of the pad (1). Alternatively the inner face may be formed by a layer of flexible material which is supported on a cushion containing a liquid so that the flexible layer matches the contour of the ear. USE - Protection of the hearing.
Patent DE-4011316-A1 (DE)
Title: Satellite geodesy system for excavator shovel wheel position
Inventor: DUDDEK HERBERT DIPL ING
IPC: E02F3/26
Filed: 1990-04-07
Abstract: The geodesy system uses measuring signals from at least 4 satellites (10..13) received by a receiver (1) attached to the excavator adjacent the shovel wheel (7) and by a second receiver (2) at a fixed relative position to the first receiver (1), both sets of signals fed to an evaluation processor. The latter holds a model of the excavator construction. Pref. the satellite signals are also received by a reference receiver (3) at a ground station (9) with known position coordinates.
Patent DE-4014904-A1 (DE)
Inventor: LINDEN KLAUS VAN DER DIPL ING
IPC: B05B17/06
Filed: 1990-05-09
Abstract: To prevent incrustations from forming on all surfaces wetted by the liquid, the invention calls for the interior surfaces which come into contact with the spray liquid to be hermetically sealed off from the surrounding atmosphere by means of at least one valve (36, 54, 98, 106) when the aerosol dispenser (1, 88, 100) is off. The invention also calls for the container (6, 96, 102) for the spray liquid to be so designed that its volume decreases as the liquid is used up. The ultrasonic aerosol dispenser described is particularly suitable for use in spraying liquids which dry or resinify in air.
Patent DE-4016770-A1 (DE)
Title: Cable connector for coarse and fine wires - relies on compression of wire between teeth of moulding and upper surface of depressed flat spring
Inventor: TRAUTMANN GUENTER
IPC: H01R4/48
Filed: 1990-05-25
Abstract: A plastic housing, in two parts (1a, 1b) held together by rings (2) pressed on to their ends, encloses connection terminals of e.g. brass. Square or triangular teeth of a moulding (3) grip the ends of the wires in contact with flat springs (5) under press-studs (6) accessible through openings in the housing. For heavier gauge wire the press-stud is pushed further into the interior, and the spring is depressed further to accommodate the larger dia. ADVANTAGE - Fine wire is easily inserted without damage into connector which is equally suitable for heavy-gauge wire.
Patent DE-4017623-A1 (DE)
Title: Mortar contains lime and cement - with binding agent of animal egg white
Inventor: BREDL WENZEL
IPC: C04B24/14
Filed: 1990-05-31
Abstract: A mortar is made by mixing together unslaked lime and/or cement and as binding agent egg white with no water required. Both egg white and yolk may be added as the binding agent. The egg is pref. a chicken egg. USE/ADVANTAGE - Making mortar for restoring, modelling and building purposes. Has improved strength without having to add water and is Water impermeable.
Patent DE-4023427-A1 (DE)
Title: Vehicle headlamp with motor-operated adjustment of orientation - has outer body in which reflector can be accommodated so that it can be swivelled
Inventor: RESSIA ALESSIO
IPC: B60Q1/06
Filed: 1990-07-24
Abstract: The reflector (4) can be swivelled relative to the outer body (2) around at least one axis (5). An actuator (7) is fitted on the outer body. A joint connection (6) is carried by the outer body and arranged between an output organ of the actuator and a point of the reflector, which lies at a certain distance from the axis (5). The connection has an input organ (25) coupled to the output organ (29) across a ball joint (27) with a bayonet catch. The ball joint (27) is formed by a ball seat (37) and ball shaped head (36) coupled  together.  One of the elements (36,37) is carried by the input organ and the other by the output organ. The seat (37) communicates with the outer chamber across a duct (38) formed by  a cylindrical surface (40) and at least one section of a plane surface (39) which extends along the entire length of the duct and lies at a distance from the axis of the duct which is smaller than the radius of the ball head.  The surface (40) has the same radius as that of the seat and the head (36) in cross-section has the same shape. and dimensions as the cross-section ofthe duct (38). ADVANTAGE - Type improvement allowing simple and quick assembly and dismantling of actuator without need of special tool.
Patent DE-4026850-A1 (DE)
Title: Filtering signal with information and carrier frequency components - measuring information signal amplitude by frequency double that of carrier frequency
Inventor: PETZOLD WERNER P
IPC: G05B21/02
Filed: 1990-08-24
Abstract: The frequency signal components provide specified information. The static carrier frequency signal components have different frequency from that of the information signals, the carrier signal components being filtered out from the information signals. The information signal amplitude is measured by a frequency twice that of the carrier signal component for generating a series of information signal values. Each information signal value is summated with a preceding one to form a series of information signal value sums. Each such sum is halved to generate a series of information signal values, from which the carrier frequency has been filtered out. USE/ADVANTAGE - High precision control  paths in infinitely variable gear drives and transmissions without information signal component suppression. Remains effective even if working conditions change, namely, temp. and humidity and when carrier frequency shifts. Easy and cheap to apply since only a simple program is needed for digital delay, summing and division.
Patent DE-4027161-A1 (DE)
Title: Non-destructive material tester for pipes or rollers - uses transmitting or send-receiveultrasonic test head(s) between receive ultrasonic test heads in line
Inventor: SCHMEISSER MICHAEL DR ING
IPC: G01N29/11
Filed: 1990-08-28
Abstract: The ultrasonic waves used for testing are generated from at least one head to reach the long object under test via a coupling medium. A receiving arrangement for ultrasonic waves is placed to intercept waves reflected from faults and produce signals for an evaluator ascertaining the nature of faults in the object irradiated. At least three ultrasonic test heads (2,3,4) are placed in a row along a line (7) or their transmitting surfaces extend in parallel with the line. The outer heads (2,4) are receivers. The middle one(s) (3) is at least a transmitting type. The line (7) is inclined w.r.t. the length axis (6) of the object (1) at an angle lying between 0 and 45 deg.
Patent DE-4028640-A1 (DE)
Title: Modified rudder design for ship -  has part of rudder before the propeller with propeller shaft in slit
Inventor: LEHMANN KLAUS D
IPC: B63H25/38
Filed: 1990-09-09
Abstract: The propeller (3) driving the boat or ship is located within the rudder (3). By placing the rudder thus, control surfaces (2) are available when the boat is driven astern. The rudder rotates around the axis (10) and the propeller is fixed. USE/ADVANTAGE - In sailing boats, the distance between rudder and propeller causes an initial turning action on the boat to either port or starboard when the boat is driven astern. This turning action starts before the boat has sufficient motion for a conventional rudder to be effective, and thus makes the boat difficult to control. This design is to solve this problem.
Patent DE-4030240-A1 (DE)
Title: Repetitively Q=switched surgical laser - having solid-state laser module and supplementary frequency-doubling module
Inventor: STEIGER ERWIN DIPL PHYS
IPC: A61B18/20
Filed: 1990-09-25
Abstract: A repetitively Q-switched grant pulse solid state laser, esp. for surgical operations such as cutting hard and/or soft tissue and coagulating soft tissue, comprises a basic module, producing laser radiation in the fundamental wavelength range 1.85-2.16 microns for photo-ablation, combined with a supplementary module which produces, by frequency-doubling, laser radiation on the wavelength range 0.925-1.08 microns for photo-coagulation. - The basic module contains a laser medium selected from TM:YAG,HO:YAG,HO:YSGG,TM:TSGG,TM:HO:YAG,HO:TM:Er: YLF,TM:HO:Cr:YAG,TM:Cr:YAG,TM:Er:YAG and TM:Er:Cr:YAG crystals with various laser-active atom dopings and includes an electro-optical or acousto-optical h.f. repetitive Q-switch of anhydrous non-linear optical material which is transparent in the 1.85-2.16 microns wavelength range.
Patent DE-4038841-A1 (DE)
Title: Long-distance conveyor and separator of magnetisable workpieces
Inventor: SCHWANKHART GERHARD
IPC: B65G54/02
Filed: 1990-12-06
Abstract: Long-distance conveyor and separator of magnetisable workpieces utilises EM propulsion of lightly magnetised pieces along frames into which compartmented reception wheel projects
Patent DE-4040038-A1 (DE)
Title: Cover for luggage space of limousine - method of attachment to body 2-posts
Inventor: ALLERSHAUSEN ECKARDT
IPC: B60R5/04
Filed: 1990-12-14
Abstract: The luggage space cover is for a limousine. The ends (6,7) of a rod (5) are formed as retaining journals (8,9) and are held in recesses (18) provided in the D-posts (15). The shape of the overhang (11) is so matched to the contour of the posts and the boot lid (12) of the vehicle that in the horizontal position the luggage space is completely covered. USE/ADVANTAGE - Improved method of covering the luggage area of a limousine using a cover in the form of a fitted sheet or carpet section.
Patent DE-4104851-A1 (DE)
Title: Broken expanded clay granule scrap recovery - by mixing with clay suspension and firing giving prod. useful e.g. for plant substrate, filter or insulation
Inventor: MACK ANTON
IPC: C09K17/02
Filed: 1991-02-16
Abstract: Working up scrap from broken expanded clay granules, esp. as plant substrate for expanded clay granules suitable for long-term watering of plants, is carried out by mixing the scrap with a liq. clay suspension in a mixer and firing after discharge from the mixer. Mixt. is treated with a water binder, pref. a thickener. Before firing, the mixt. is covered with dry clay powder and may be moulded and dried relatively slowly before firing. Firing is up to 1200 deg.C. USE/ADVANTAGE - Prod. looks attractive, since black core of the fragments is disguised. It is light and very open-pored. Used as plant substrate for long-term watering, as soil improver, as filter material and for (thermal) insulation, may also be moulded to filter stones, plant pots etc. with good air and water permeability
Patent DE-4107360-A1 (DE)
Title: Measuring control current of high voltage system surge suppressor - by measuring voltage drop across low impedance measurement resistance in parallel with monitoring gap
Inventor: LIEBSCHER KLAUS DIPL ING
IPC: G01R31/12
Filed: 1991-03-05
Abstract: A method of measuring the control current in a high voltage system surge arrestor (1) involves measuring the voltage drop produced by the current in a relatively low impedance measurement resistance connected in parallel with the surge arrestor's monitoring path (2). The connection of the measurement resistance and measurement of the control current are performed with the arrestor in operation. A protective device (3) contg. the measurement resistance (Rm) is connected to the monitoring armatures for the monitoring path. A connection is first made to the arrestor's earth input and made effective by removing a measurement resistor bridge after connecting the protective device. USE/ADVANTAGE - The control current is measured at reduced cost with the arrestor in operation.
Patent DE-4107602-A1 (DE)
Title: Permanent magnet rotor for electrical machine operating fuel pump - has several shell-shaped permanent magnet segments which touch each other in peripheral direction and are non-rotatably fixed to bearer cylinder
Inventor: LUEDTKE ULRICH DIPL ING
IPC: H02K1/27
Filed: 1991-03-09
Abstract: Each arc-shaped upper edge on the face sides of the magnet segments (11) turned away from the bearer cylinder (10) is provided with a chamfer (25, 26) and the segment fixture device (12) comprises two ring-shaped caps (13, 14) pushed on to the face sides of the magnet segments, and with an engagement edge (27, 28) engaged over the chamfers. The ring caps are located axially and radially undisplaceably on the bearer cylinder. The external dia. of the face-side ring caps is equal to that of the magnet segments (11). The bearer cylinder at both ends has a ring shoulder (23, 24) at a distance from the face ends, and the axial distance of the shoulders from one another is equal to or slightly less than the axial length of the magnet segments (11). The ring caps are tensioned axially on the face sides of the magnet segments, and at least one of them (13) locates under axial pressure on a ring shoulder (23). ADVANTAGE - Allows quick mfr, very high rotor speeds and very small air gaps.
Patent DE-4116372-A1 (DE)
Title: Function mass adjuster for booster of vehicle hydraulic brake - uses axially displaceable ring working with collar
Inventor: WAGNER WILFRIED ING GRAD
IPC: B60T13/563
Filed: 1991-05-18
Abstract: The actuation unit is for a vehicle hydraulic braking system. It has a threaded adjustment connection fitted on the brake booster or the master cylinder which works together with a second sleeve (28) to create a variation in the function mass (F) of the booster. The adjustment connection consists of an axially displaceable ring (22) in a collar (30) with the second sleeve projecting into the collar and lying axially against the ring. USE/ADVANTAGE - Hydraulic braking system in which the function mass of the booster can be adjusted in a simple, cost-effective and time-saving way.