baber/WOPTO huggingface dataset:
Patent DE-3821580-A1 (DE)
Title: Device for a power laser
Inventor: KLINGEL HANS DIPL ING
IPC: H01S3/036
Filed: 1988-06-25
Abstract: In the case of a CO2 power laser, the beam paths of which are arranged in a quadrilateraland run in gas tubes 27', 28', cooled gas is blown into the gas tubes in each case through the four corner flanges 16', 17', 18', 21' and the heated gas in the middle of each beam path is sucked out via in each case one orifice flange 26', 31', 33', 36'. The gas pump is a turbo fan which lies at the centre, from which star-shaped channels extend to the flanges. These channels are made in a hollow panel which also supports the flanges. Such a quadrilateral forms a module. To increase the power, a multiplicity of such modules are coupled at the corners. This laser is compact and highly efficient, while being evenly cooled so that a high laser power is achieved with each module, which power can be matched to the requirement by stringing together a multiplicity of modules in the manner of a building-block system. The modules can be strung together in the manner of chessboard squares in an arbitrary arrangement, so that optimum matching to the particular spatial conditions is possible. Use in industrial power lasers. <IMAGE>
Patent DE-3821775-A1 (DE)
Title: Semiconductor layer structure for a laser diode having a buried heterostructure
Inventor: THULKE WOLFGANG DR RER NAT
IPC: H01S5/042
Filed: 1988-06-28
Abstract: Semiconductor layer structure for a laser diode, in which a semi-insulating substrate 1 is grown over on a (111) plane. The surface of the substrate is structured by means of etching in such a way that the overgrown surface (10) has a stripped-shaped region (9) which coincides with the (100) plane of the substrate and via which epitaxial growth is performed more rapidly than over the remainder of the surface (10). A first layer (2), a second layer (3), a third layer (4) and a fourth layer (5) are grown thereupon; the first layer (2) and the third layer (4) are grown more thickly laterally than vertically. These layers are made from semiconductor material having the composition and doping which are conventional for laser diodes. The second layer (3) represents the laser-active layer. This second layer (3) is covered at the top by the third layer (4). The first layer (2) and the fourth layer (5) have metallisations (6, 7). The semiconductor layer structure is insulated at the top by a dielectric layer (8). <IMAGE>
Patent DE-3824292-A1 (DE)
Title: Method for fabricating thin-film absorbers for electromagnetic waves
Inventor: GRUENTHALER KARL-HEINZ DR
IPC: H01Q17/00
Filed: 1988-07-16
Abstract: A method for fabricating a thin-film absorber for electromagnetic waves is described which comprises electrically conductive fibres being mixed in into an organic binder and this mixture then being applied in a screen-printing process to an electrically insulating substrate (base) material, a multiplicity of electrically conductive individual structures, insulated with respect to one another, being produced in the process. The method according to the invention permits the fabrication of thin-film absorbers of this type in a manner requiring particularly little labour.
Patent DE-3827323-A1 (DE)
Title: Dual full adder-subtractor
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1988-08-11
Abstract: The dual full adder-subtractor according to the subject of the invention differs from the dual full adder-subtractor according to P 3826759.4 in that the OR circuit (19) has only two inputs, and is thus triggered by only two AND circuits. On the other hand, the dual full adder-subtractor type A also has an additional OR circuit (7), which is not required for the dual full adder-subtractor type B. <IMAGE>
Patent DE-3830441-A1 (DE)
Title: Luminaire for strongly vibrating machines, in particular mobile agricultural machinery
Inventor: HOELDIN THOMAS
IPC: B60Q1/26
Filed: 1988-09-07
Abstract: The invention relates to a luminaire for strongly vibrating machines, in particular mobile agricultural machinery, consisting of a housing which accommodates one or two luminaire elements and can be fitted to any desired position of the machine. The luminaire is characterised in that the luminaire element(s) (1, 2) is/are mounted in a vibration-free and protected manner in an elastic means, e.g. in an elastic rubber (6, 11, 12) in the luminaire housing (5). <IMAGE>
Patent DE-3837172-A1 (DE)
Title: Tool arrangement for machining internal workpiece surfaces
Inventor: SCHROEDER DIETER
IPC: B23Q35/10
Filed: 1988-11-02
Abstract: To achieve shorter machining times in the machining of internal workpiece surfaces with a non-polygonal cross-section contour, a tool arrangement is proposed which contains a spindle (5) which is mounted in a tool carrier (4), is connected to a drive device (1) and transmits its rotary movement to a slide arrangement (7) whose slides (8 to 11) equipped with cutting tips (12, 13) are guided in a curved path, corresponding to the workpiece, inside the tool carrier (4). <IMAGE>
Patent DE-3839562-A1 (DE)
Title: Water filter having a quick-change insert
Inventor: LIEDGENS KARL
IPC: B01D29/05
Filed: 1988-11-24
Abstract: Water filter having a quick-change insert of a type in which a foldable holder having an open-pored filter body is inserted, held in guide ridges, into a filter housing preferably made of transparent plastic and is exchanged, for cleaning or change by loosening the screw cover.
Patent DE-3842313-A1 (DE)
Title: Carrying handle for plastic bags and other carrier bags
Inventor: WALTER EDGAR
IPC: A45F5/10
Filed: 1988-12-16
Abstract: The invention relates to a carrying handle for relatively thin carrier bags. The cross-section of the carrying handle is far greater than the handle of the carrier bag(s) which can be introduced into the carrying handle through a slot. The thin walls of the body of the carrying handle provide advantages compared to the known systems.
Patent DE-3844425-A1 (DE)
Title: Facsimile device responding to different start signals
Inventor: HASHIMOTO KAZUO
IPC: H04N1/327
Filed: 1988-12-30
Abstract: An input device in a central unit enters an output signal which is produced after the end signal of a sent-out message or the completion of an incoming message in an automatic call-responder and recorder which is driven according to the registration of a call signal over the telephone line. A further input device enters an output signal obtained by the decoding of a signal such as a call-tone signal input via a modem over the line. A third input device supplies the central unit with a signal in the audible frequency band sent from the calling substrate. A controller sets the facsimile device into operation upon each input signal, when a call signal is entered via the line, and closes the line loop be actvating a relay from the central unit.
Patent DE-3844702-A1 (DE)
Title: Moving coil device for loudspeakers - uses conducting coil carrier in conjunction with extra winding
Inventor: KELLER FILIP
IPC: H04R9/04
Filed: 1988-09-15
Abstract: A loudspeaker transducer has a coil attached to an electrically conducting bobbin.  In particular, the bobbin carries a second winding which may  be connected, in series or parallel with the moving coil. Pref., the transducer may be constructed  from compressed material which may be super-conducting. Coil may be of aluminium. USE/ADVANTAGE - Loudspeaker coils/transducers; better stability, higher efficiency, improved impulse response.
Patent DE-3906061-A1 (DE)
Title: Concrete having high density, process for its production and its use
Inventor: GIRARDOT CHRISTIANE
IPC: C04B28/02
Filed: 1989-02-27
Abstract: Concrete having high density, which can be used, in particular, as a ballast, counterweight or balancing (compensating) material, is obtained by mixing of blasting sand (grit), haematite, cement, a water-reducing synthetic resin binder and a setting accelerator. In this way it is possible to produce concrete having an accurate density between 3,200 and 6,300 kg/m<3>.
Patent DE-3908974-A1 (DE)
Title: Composition for intermediate treatment in permanent waving of the hair, and method for permanent waving of the hair
Inventor: HARTMANN PETER
IPC: A61K8/49
Filed: 1989-03-18
Abstract: The invention relates to a composition with a low water content for treating hair between the reductive and the oxidative stage of permanent waving of hair, which is free of oxidising and reducing agents and contains a mixture of  alpha -ammonium- epsilon -caprolactam lactate and lactic acid, where the molar ratio of  alpha -ammonium- epsilon -caprolactam lactate to lactic acid is 1:0.10 to 1:0.66. The invention likewise relates to a method for the permanent waving of hair using this composition.
Patent DE-3915262-A1 (DE)
Title: Method for generating authenticated secret codes
Inventor: GUENTHER CHRISTOPH DIPL PHYS D
IPC: G09C1/00
Filed: 1989-05-10
Abstract: In a method for generating authenticated secret codes the same mathematical computation operations are used in a pre-authentication and a subsequent code construction. For the pre-authentication of the party A and B, each party chooses a finite field GF(p) (GF(q), respectively), an element  alpha  (ss, respectively) from the finite field GF(p) (GF(q), respectively) and a first secret random number <IMAGE>   Then he generates an authentication code <IMAGE> by raising his element  alpha  (ss, respectively) to the power of his first secret random number <IMAGE> and discloses this together with the finite field GF(p) (GF(q), respectively) and the element  alpha  (ss, respectively) in authenticated manner. During the code construction, both parties A and B proceed so that each of the two parties A (B, respectively) generates a second secret random number [x  epsilon  0 .. q-2] ([y epsilon  0 .. p-2], respectively) and a working code ss<x> ( alpha <y>, respectively), by raising the element ss ( alpha , respectively) of the other party B (A, respectively) to the power of his second secret random number x (y, respectively), and the two parties A and B exchange the values ss<x> and  alpha <y> and then calculate the common authenticated secret code <IMAGE>   <IMAGE>
Patent DE-3926459-A1 (DE)
Inventor: FELDMANN HUGO DR
IPC: C21D8/00
Filed: 1989-08-10
Abstract: In the manufacture of thermomechanically treated rolled steel material, a fine-grained formation of the microstructure is of great importance to the strength and toughness properties of the rolled product. According to the invention, a considerable improvement in the strength and toughness properties, and an associated substantial increase in the yield point values and notched impact strength of a rolled steel product, are achieved if the deformation of the rolled material starts in a temperature range which is below that of stable austenite, and is continued up to just above the Ac3 temperature.
Patent DE-3933411-A1 (DE)
Title: Divided paraboloidal reflector for motor vehicle lamp - minimises central dark zone by direct transmission through Fresnel lens with peripheral reflection from inclined paraboloids
Inventor: SACCO BRUNO
IPC: F21V7/00
Filed: 1989-10-06
Abstract: Two paraboloidal sections (2, 3) share a common focus (4) on the optical axis (1) from which all rays are reflected at the paraboloidal surfaces and refracted by an annulus (11), to emerge as a parallel beam between outer and inner boundary rays (7, 8; 9, 10). The axes of the paraboloids (2, 3) are inclined equally and oppositely to the optical axis (1). The centre of the annulus (11) is filled with a Fresnel lens (12) converting direct light from the focus (4) into a parallel beam. USE/ADVANTAGE - For brake warning lamps or other rear lamps. Homogeneous emission is achieved from significantly smaller structure.
Patent DE-4007154-A1 (DE)
Title: Thrust generating device with two rotating arms - is rotate in opposite directions and can slide radially in driving shafts
Inventor: JAEGER LOTHAR
IPC: F03G3/00
Filed: 1990-03-07
Abstract: The thrust generator consists of two weights (4) attached to opposite ends of a rotating arm (5). The arm is rotated by means of a shaft (7) which has a diametral hole which forms a guide for the arm. As the shaft (7) is rotated one of the weights moves radially outwards under the influence of centrifugal force whilst the radially inward movement of the other weight is limited by a curved stationary guide rail (2). Two such rotating arms are mounted side by side and rotate about a common axis but in opposite directions. These is thus a resultant force in the direction X and the lateral force exerted by one arm is cancelled by an opposite lateral force exerted by the other arm.
Patent DE-4009579-A1 (DE)
Inventor: NIESSEN GUENTHER
IPC: B07C3/12
Filed: 1990-03-24
Abstract: System for remote sensing of distinguishing marks on objects, e.g., tickets showing the price or article number, e.g., of characteristic marks on packets or cases, for the purpose of automatic transport control. To ensure rapid recording, the distance of the data window from the remote data-sensing device (e.g., eye computer) to the characteristic marks on the objects and its dimensions are chosen so that several characteristic marks can be included in the sensing field and active field of fast electronic devices. The labels on the goods can thus be rapidly evaluated in the basket without unpacking it (fast check-out) by means of an optical medium (light) which transmits the data relating to a layer of goods and, by means of a radio medium which penetrates a full basket of goods. Use of coloured labels which can be readily sensed at a distance or radio labels (transponder). Separation of the various radio responses by isolating in time-intervals of 1 second. Elimination of queues at check-outs in supermarkets. Automation of packet transport at the post office. Automation of case transport in airports; after the flight, cases are delivered automatically and directly to the passenger.
Patent DE-4009904-A1 (DE)
Title: Handling attachment for portable circular saw - aligns guiding force with saw blade and reduces manual sawing effort
Inventor: MOHR HERBERT
IPC: B23D45/16
Filed: 1990-03-28
Abstract: The handling attachment fits onto the guard of the portable circular saw parallel to the original handle and directly behind the saw blade. By use of thee handling attachment the turning moment on the saw due to the offset of the saw blade from the  line of action of the feed force applied via the original handle is reduced to zero. In consequence the tendency for the saw to deviate from the desired line of cut is eliminated and the effort required for satisfactory cutting greatly reduced.
Patent DE-4017769-A1 (DE)
Title: Hose conveying dangerous fluids - has outer hose which forms space supplied with substance which neutralises dangerous fluid
Inventor: BRAUN ALFRED
IPC: F16L11/20
Filed: 1990-06-01
Abstract: A hose, partic. for conveying poisonous or polluting substances, has an inner hose (1) of rubber or plastic, resistant to the medium to be conveyed. It is surrounded by an outer safety hose (2) with a space (3) between them contg. a substance which absorbs, washes, or dissolves the medium in the inner hose (1). At the ends, the safety hose (2) can be sealed against the inner hose (1) and have an inlet and outlet (4, 5). When acrylonitrile is conveyed through the inner hose (1) the space (3) can contain warm caustic sode soln. as absorbent. USE/ADVANTAGE - Overcomes the limitations in the use of rubber hoses imposed by the diffusion of dangerous substances such as acrylonitrile and vinyl chloride. (7pp Dwg.No.1/3)
Patent DE-4019488-A1 (DE)
Title: Snap-acting thermal switch - is closed by magnetic attraction of iron body on end of moving contact arm towards permanent magnet carried by bi-metallic strip
Inventor: ACHT JOACHIM
IPC: H01H37/66
Filed: 1990-06-19
Abstract: A fixed contact (2) on a cantilever arm (1) cooperates with a moving contact (3) on a switch arm (4) which has an iron body (6) at its free end. The switch is biased towards the open position by a compression spring (11). As the temp. rises the bimetallic strip (9) bends until a permanent magnet (10) at its free end approaches the iron (6), which is then attracted into contact with a plastic abutment (7). This movement compresses the spring (11) and brings the two contacts (2,3) together.
Patent DE-4021159-A1 (DE)
Title: Measuring arrangement in atom absorption spectrometry - contains pulse lamp, echelle spectrometer, and CCD sensor
Inventor: BECKER-ROSS HELMUT DR
IPC: G01J3/28
Filed: 1990-07-03
Abstract: An arrangement for simultaneously measuring several elements in atom absorption spectroscopy contains a pulse lamp (9) continuum radiator, a high resolution Echelle spectrometer and a CCD sensor (7) consisting of modified CCD rows with few pixels positioned at the loci of selected spectral lines of an Echelle spectrum. The pulse lamp radiation intensity spectrum approximates to the continuous spectrum of a black radiator with a radiation temp. of approximately 15000 K. The CCD sensor operates near saturation of individual pixels for all wavelengths at each lamp flash. ADVANTAGE - Achieves increased efficiency of atom absorption spectrometry.
Patent DE-4022369-A1 (DE)
Title: Spring arrangement for pram - comprises spring component with ends attached to first and second frame parts
IPC: B62B9/18
Filed: 1990-07-13
Abstract: Around the spring component (20) is a housing (16) comprising two parts (12, 14) forming a central chamber (18) contg. the spring component. Through the one end section (26) of the housing extends a rod component (28) longitudinally which is connected on the one hand to the spring component, and on the other hand to the first frame part (52). The second end section (40) of the housing (16) is connected to the second fixture end (24) of the spring component, and the second frame component (48). The rod component (28) is formed with a stop (34), and the housing has a counter stop, which serve to restrict in a defined manner the path of the spring component. USE - As a spring arrangement for the frame of a pram.
Patent DE-4024954-A1 (DE)
Inventor: GROSS JUERGEN DR
IPC: G01N21/01
Filed: 1990-08-07
Abstract: In the photometer arrangement comprising a light source, lens system with beam splitter, measurement cell, scattered light trap and photodetector, said parts being arranged in this sequence, the scattered light trap comprises a honeycomb. The ratio between the free cross-section of its individual channels and the length thereof is from 1:40 to 1:300.
Patent DE-4032894-A1 (DE)
Title: Work part deposition face in transfer press empty stage
Inventor: HARSCH ERICH
IPC: B21D43/05
Filed: 1990-10-17
Abstract: The transfer press for large workpieces has the lower press tool (5) mounted on a slider (4) which transports the tool and workpiece (6) into the empty press stage behind the last working stage. After the final operation, the workpiece (6) is checked by templates mounted on template carriers (16, 18, 39, 40) which slide sideways w.r.t. the movement of the workpiece. The latter is removed from the press by grippers mounted on rails (11, 12). The grippers transfer the workpieces to a table (9) where they are stacked.
Patent DE-4034770-A1 (DE)
Title: Arrangement for diagnostic vehicle body dimensions - transfers sensor signals to computer interface via infrared, ultrasound or HF to eliminate troublesome cables
Inventor: SPEISSER ALFRED
IPC: B21D1/14
Filed: 1990-11-02
Abstract: The dimensions of a vehicle chassis are measured using an arrangement with electronic sensors or electrical contacts. The sensor or contact signals are coded. They are than transmitted to IR ultrasound, or HF transmitters. The transmitter sends the signal to a corresponding receiver in a computer interface. The signals define 3-dimensional XYZ points on the vehicle. The vehicle is mounted on planks, with sensors attached to the ends of the planks. ADVANTAGE - Reducesd number of electrical leads.
Patent DE-4034934-A1 (DE)
Title: Tandem nozzle for multi-cavity thermoplastic injection - has twin nozzles each with central runner and circular nozzles having flats on adjacent faces to obtain correct nozzle spacing
Inventor: PRINZ HORST
IPC: B29C45/28
Filed: 1990-11-02
Abstract: A tandem nozzle arrangement for a thermoplastic injection moulding machine has two adjacent nozzles each with a central runner through which a shut-off needle is guided by a bush. Both shut-off needles are held in a common plate operated by a piston and cylinder power unit. The basic circular shape of the nozzle is machined flat on two faces in contact with each other to enable the nozzle axes and hence orifices to be the correct distance apart. USE/ADVANTAGE - The tandem nozzle is used for multi-cavity injection moulding and is easily adaptable to suit cavity spacing. (0/1)
Patent DE-4036629-A1 (DE)
Title: Ring burner arrangement for heating elongated elements - has heating zone, air feed channel below burners and cooling chimney to prevent heating of element holding units
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/255
Filed: 1990-11-16
Abstract: Ring burner arrangement for heating elongated elements (ES, EE) comprises a heating zone (7) with air feed channel (24) below the burners and a cooling chimney (5) above the burners through which the element (ES) is fed. The chimney is surrounded by a cooling chamber (9) circulated with coolant (28). A waste gas channel (14) also leads off from the heating zone in an upwardly diverging manner. USE/ADVANTAGE - For producing optical couplings in which light wave conductors (EE) are located inside a glass tube (ES).
Patent DE-4037182-A1 (DE)
Title: Low-speed automatic warning installation on motor vehicle - flashes all four direction indicator lamps at min. level of output from road wheel revolution counter
Inventor: ENZINGER BERNHARD
IPC: B60Q1/46
Filed: 1990-11-22
Abstract: An electric transducer (3) coupled e.g. to the speedometer drive shaft (1) operates a relay (5) via a limiting-value circuit (4) taking effect when the road speed falls below a preset min., deemed to be hazardous to following vehicles on a motorway. The four direction indicator lamps (6) are flashed when the relay (5) is closed in series with a manual cancellation switch (8), or when both are by-passed by a manual override switch (7) at the disposal of the driver. ADVANTAGE - Emergency flashing indicators are switched-on automatically on stationary, slow-moving or rapidly decelerating vehicle.
Patent DE-4039561-A1 (DE)
Inventor: PURI CHANDER P DR
IPC: A61K31/565
Filed: 1990-12-07
Abstract: Antigestagenes (competitive progesterone antagonists) reversibly inhibit at very low doses various parameters of the masculine sexual function and are useful to produce medicaments for controlling masculine fertility and/or for treating andrological pathologies.
Patent DE-4101221-A1 (DE)
Inventor: RUNKEL WALTER DIPL ING DR
IPC: B62D33/10
Filed: 1991-01-17
Abstract: The invention relates to a hydropneumatic suspension system for the resilient support of a mass, in particular a driver's cab of a lorry or the like. It has at least four hydraulic piston cylinder units (2, 4, 6, 8) which support the mass and have in each case a cylinder space (20) and an annular space (22) which is separated from the latter via a piston (16) and encloses a piston rod (18). The piston cylinder units (2, 4, 6, 8) are divided into two groups (40, 42) in that the cylinder spaces (20) of the piston cylinder unit (2, 4) of the first group (40) are connected on the one hand to one another and on the other hand to the annular spaces (22) of the piston cylinder units (6, 8) of the second group (42). The cylinder spaces (20) of the piston cylinder units (6, 8) of the second group (42) are connected on the one hand to one another and on the other hand to the annular spaces (22) of the piston cylinder units (2, 4) of the first group (40). Two separate hydraulic circuits (A, B) formed in this way and hydraulically separated from one another are connected to in each case at least one hydropneumatic spring energy store (10, 12). <IMAGE>