baber/WOPTO huggingface dataset:
Patent DE-3731127-A1 (DE)
Title: Process and device for the vacuum plasma arc deposition of decorative and wear-resistant coatings
Inventor: RANDHAWA HARBHAJAN S
IPC: C23C14/06
Filed: 1987-09-16
Abstract: A process and a device for vapour deposition utilise the technology of cathodic plasma arc deposition in order to deposit hard coatings on cosmetic components or commodity articles (substrates) at down to very low temperatures (the temperature range from approximately 50 to approximately 500@C). The films consist of nitrides, carbides and carbonitrides of titanium, zirconium, titanium-zirconium, titanium-aluminium and of doped systems of the abovementioned systems. The metal is vaporised, using a cathodic arc source, in a vacuum chamber filled if appropriate with low-pressure protective gas or doping gas and forms a hard coating on the surface of the substrate, pulse wise operation being possible for the source. This deposition process improves the colour reproducibility and the wear resistance at down to very low substrate temperatures (greater than or equal to approximately 50@C). The adhesion of the coatings can be improved further by appropriate pre-tension of the substrate. The film compositions, and therefore the colours, can be appropriately adjusted in order to make the use of gold superfluous for decorative applications. <IMAGE>
Patent DE-3732875-A1 (DE)
Inventor: MORIMOTO YASOAKI
IPC: G11B13/04
Filed: 1987-09-30
Abstract: Optical-recording medium having a light-transmitting substrate layer. 
<??>CDs are such recording media, on which data are stored in so-called pits, that is to say depressions in a light-reflecting layer following the light-transmitting layer. In the case of magneto-optical discs, data are stored in a magneto-optical layer by magnetising in the one or the other direction of magnetisation. For reading the data stored in this way, use is made of the Kerr effect, which produces a measurable rotation of the polarisation plane when a linearly polarised light beam is reflected at the magneto-optical layer. Although both recording media - CD and magneto-optical disc - already have a high storage capacity, a considerable increase in the storage capacity is of great benefit, in particular for computer applications and as a video disc. 
<??>In order to increase the storage capacity considerably, the light-transmitting substrate layer (1) is followed by a light-reflecting magneto-optical layer (2), in which data can be stored on the one hand by magnetising and on the other hand by means of depressions (3), so-called pits. The light-transmitting substrate layer (1) may also be followed by a partially transmitting magneto-optical layer (2) without pits (3), which is then followed by a light-transmitting layer (10). In this or a following layer (11), data can be stored by means of pits (3). 
<??>Storage medium for computers, video disc, CD.
Patent DE-3732916-A1 (DE)
Inventor: BAAS DIETER
IPC: G11B7/08
Filed: 1987-09-30
Abstract: 2.1 In the case of an apparatus for the reproduction of data, which can be read by means of an optical scanning device from the data tracks of a recording medium by it being possible to guide a light beam on the data tracks by means of a track control circuit, during track jumping the optical scanning device is moved to the desired data track by a jump pulse (SI) and stopped there by a brake pulse. Because the brake pulse is always the same, major deviations from the desired track are possible, requiring subsequent correction. 
<??>2.2 In order to adapt the brake pulse to the respective jumping conditions, when jumping from one track to the next an over-small first brake pulse (B1) is emitted and the time (T) taken to reach a predeterminable point (P) of the next data track is measured. The measured time (T) is taken to determine the amplitude and/or duration of a second brake pulse (B2), which stops the optical scanning device approximately in the middle (M2) of the data track. In the case of a second solution, a test jump is carried out with a subsequent test brake pulse. The transient response of the track error signal is taken to determine the amplitude and/or duration of the brake pulse required for subsequent jumps and is stored. 
<??>2.3 CD players, DRAW-disc players, magneto-optical equipment, video-disc players.
Patent DE-3739760-A1 (DE)
Title: Steel-free, prefabricated concrete heater
Inventor: ARNOLD ROLF
IPC: F28F21/04
Filed: 1987-11-24
Abstract: The concrete heater is used in a multiplicity of ways in industrial construction and in the construction of dwellings and public buildings. According to the invention, a parallel arrangement of flexible elastic hoses, preferably made from plastic, as vertical or transverse parts is incorporated into a knitted structure for the heat carrier liquid in the low temperature range. The knitted structure further has low-strain fibres/cords. The entire structure is arranged in a plate-shaped concrete body of small wall thickness. Because of the simultaneous reinforcing function of the knitted structure, the concrete heater can be kept very flat, is thereby relatively light and has a low control inertia. Damage during transport does not render the heater unusable.
Patent DE-3803914-A1 (DE)
Inventor: SPIES HANS
IPC: H01H35/14
Filed: 1988-02-09
Abstract: PCT No. PCT/EP88/01160 Sec. 371 Date Oct. 23, 1989 Sec. 102(e) Date Oct. 23, 1989 PCT Filed Dec. 15, 1988 PCT Pub. No. WO89/07830 PCT Pub. Date Aug. 24, 1989.A magnetic impact sensor for motor vehicles with a safety system such as an airbag or belt tensioner for an occupant restraint system, has a circuit breaker arranged in an electrical trigger circuit of the safety system for inflating the airbag or tightening the belt by closing the trigger circuit in response to an acceleration or deceleration effective beyond a prescribed time duration. For this purpose a magnet in combination with specially shaped pole pieces forms two magnetic circuits the magnetic conductances of which are influenced by the position of a ferromagnetic ball that moves in response to an impact relative to the pole pieces to thereby open or close the circuit breaker. Normally, in the absence of an impact the ball is in a first position that keeps the circuit breaker open. When an impact occurs the ball moves into a second position to close the circuit breaker and thus the trigger circuit.
Patent DE-3817733-A1 (DE)
Inventor: NAGAO HIROYUKI
IPC: C03C17/34
Filed: 1988-05-25
Abstract: A method of manufacturing a phosphorus compound film wherein the surface of a substrate having at least a surface consisting of oxides of indium and/or oxides of gallium is allowed to react, by contact, with a gaseous reducing reactant, to form an InP and/or GaP on the surface of the substrate. The gaseous phosphorus compound may be phosphorus trihydride, phosphorus trichloride or phosphorus pentafluoride. The gaseous reducing reactant is preferably a gas containing hydrogen. The substrate may be glass, ceramics, metals, plastics or semiconductors, and the oxide film, which may be an indium tin oxide film, may be deposited by liquid phase methods, physical vapour deposition or chemical vapour deposition. Especially preferred methods, are sputtering and electron beam deposition. The products find application as solar cells. <IMAGE>
Patent DE-3818626-A1 (DE)
Inventor: RUBACK WULF DR
IPC: C11D1/06
Filed: 1988-06-01
Abstract: Skin-tolerated polyether-carboxylates have a high viscosity. It is known that the viscosity of polyether-carboxylates containing common salt can be greatly reduced by acidification with surface-active acids. According to the invention, concentrated pumpable polether-carboxylates, which are free of common salt and extraneous surfactants, can be produced by the addition of small quantities of alcohol. Preparation of concentrated pumpable polyether-carboxylates and the use thereof in cleaning agents.
Patent DE-3819152-A1 (DE)
Title: Noise-deadening cover plate in a typewriter or office machine of similar construction
Inventor: GERKEN HEINER DIPL ING
IPC: B41J29/10
Filed: 1988-06-04
Abstract: For noise-deadening covering of the printing position regions in typewriters or office machines of similar construction, transparent cover flaps are already widely known. In this case, screening plates designed like lamellae lying in the plane of vision of the operator are also arranged pivotably as a screen against light falling on the upper side of the cover plate. In this case, it is problematic still to accommodate the margin stops arranged displaceably at the paper outlet gap in mechanical typewriters without their handling being made more difficult. This is solved according to the invention by the pivotable screening plate (11) having margin stops (24, 25) which are arranged displaceably in the line direction and are adjustable via an associated degree scale (26) arranged on the cover flap (12). As a result, a compactly designed transparent cover flap (12) is produced, which, in addition to the noise-deadening effect, also has devices for screening the light falling onto the upper side of the cover plate (12) and for accommodating the margin stops (24, 25) and the degree scale (26). <IMAGE>
Patent DE-3826359-A1 (DE)
Title: Electrically driven actuator
Inventor: WEISSBRICH ALFONS DIPL ING
IPC: F15B15/18
Filed: 1988-08-03
Abstract: In many technical fields, actuators are required which deliver relatively high actuating and holding forces at a small output as well as with comparatively small actuating travel. Conventional electromagnetic lifting magnets or electric-motor spindle drives are comparatively large and heavy. In addition, it is comparatively difficult at least in the case of lifting magnets to control or regulate the holding force. In contrast, the novel electrically driven actuator is to be comparatively small and light and is to be simple and precise to regulate in its holding force. In the novel actuator, a permanently rotating electric motor with linear characteristic, a pneumatic pump permanently driven by this electric motor and likewise having a linear characteristic, and a pressure capsule fed by the pneumatic pump and having a linear characteristic are combined to form a compact construction unit. <IMAGE>
Patent DE-3833980-A1 (DE)
Title: Screw conveyor
Inventor: ZIMMERMANN HEINZ DIPL ING
IPC: B65G33/18
Filed: 1988-10-06
Abstract: The invention relates to a screw conveyor in which a rotating shaft, which is surrounded by thrust means arranged in a helical shape, forms a screw which is accommodated in a housing trough, at least one pair of parallel twin screws being driven in opposite directions from each other and being at such a distance from each other that they co-operate so as to exert a drawing-in force on the conveyed material.
Patent DE-3836125-A1 (DE)
Inventor: ZUCKER FRIEDHELM
IPC: G11B5/02
Filed: 1988-10-22
Abstract: An electromagnet is provided in magneto-optical recording and playback devices in order to be able to reverse the magnetisation of the magneto-optical layer of the magneto-optical disc as a function of the bits to be stored. 
<??>To achieve a fast and reliable magnetisation reversal, a coil (S) is constructed from two series-connected windings (W1, W2) of opposite winding direction. The common junction point of the two windings (W1, W2) is connected via a series circuit of an inductance (L) and a current source (Q) to a supply voltage (U). The free terminal (B1) of one winding (W1) is connected to reference potential via a first diode (D1) and a parallel circuit of a capacitor (C) and a Zener diode (Z) connected in series thereto. The free terminal (B2) of the other winding (W2) is connected via a second diode (D2) to the common junction point of the first diode (D1) and the parallel circuit. The free terminal (B1) of one winding (W1) is connected to reference potential via a first controllable switch (S1) and the free terminal (B2) of the other winding (W2) is connected to reference potential via a second controllable switch (S2). For recording data, the controllable switches (S1, S2) are opened and closed in phase opposition by a drive circuit (AS) as a function of the bits to be stored. 
<??>Magnetic and magneto-optical recording devices. 
<IMAGE>
Patent DE-3837922-A1 (DE)
Title: Method and device for aiming at moving targets, and use of the device for a Panzerfaust (standard German infantry anti-tank weapon)
Inventor: PELLER HELMUT DIPL ING DR
IPC: F41G3/06
Filed: 1988-11-09
Abstract: The invention relates to a method and a device for aiming at moving targets (8) using a rangefinder (3). In this case, the sight (2), which is coupled to a weapon (1), tracks the target (8) and the lead angle is calculated. Large and costly fire control units are normally used for carrying out such methods. The present invention is now based on the object of creating a compact sight, using which the gunner can aim very accurately and can align the weapon, especially a hand-held firearm. This object is achieved in that the angular rate corresponding to the target tracking movement is measured using a gyro system (4) which is directly coupled to the sight (2). The lead angle is determined, with the aid of a computer (5), from the angle rate and the range, determined using the rangefinder (3), between the target (8) and weapon (1), and a display array (25) is driven by a signal corresponding to the lead angle and is reflected into the sight (2). <IMAGE>
Patent DE-3843933-A1 (DE)
Title: Oil-immersed motor for connection to pumps, and a method for its operation (for driving it)
Inventor: WEGENER JOACHIM DIPL ING
IPC: H02K5/132
Filed: 1988-12-27
Abstract: Published without abstract.
Patent DE-3844614-A1 (DE)
Title: Spot-jet rotation nozzle for high-pressure cleaning devices
Inventor: SUTTNER WOLFGANG
IPC: B05B3/04
Filed: 1988-09-21
Abstract: In a spot-jet rotation nozzle for high-pressure cleaning devices and other devices with a liquid jet emerging under high pressure, with a compression-proof housing (7) with a water inlet (8) and a water outlet (9), a turbine rotor (18) which is arranged in the housing (7) and is rotatable in relation to the housing (7), a nozzle body (19), which is mounted rotatably in the housing (7), is coaxial with the axis of rotation of the turbine rotor (18) and is rotationally driven by the turbine rotor (18), with a nozzle tip (24) and a gear (26) provided between turbine rotor (18) and nozzle body (19), in which the nozzle tip (24) is sealed in relation to the housing (7) in the region of the water outlet (9), improvement, constructional simplification and optimisation in terms of cost are to be carried out with regard to the water guidance by the water flow duct (25) in the nozzle tip (24) being extended in the direction of the water inlet (8) to beyond the gear (26) into the region of the turbine rotor (18) by a calming duct (39) which is arranged coaxially with the central axis of the nozzle tip (24) and designed in the nozzle body (19) or in a separate jet-guiding body (38) inserted into the nozzle body (19). <IMAGE>
Patent DE-3902311-A1 (DE)
Title: Process for the preparation of solid epoxy resins
Inventor: PENCZEK PIOTR PROF DR
IPC: C09D163/00
Filed: 1989-01-26
Abstract: The invention relates to a process for the preparation of solid epoxy resins by warming a dicarboxylic acid with a molar excess of a low-molecular-weight or medium-molecular-weight epoxy resin in the presence of a catalyst. In the novel process, ethylene polyterephthalates containing carboxyl groups at the chain ends having an acid number of from 60 to 400 mg of KOH/g or warmed at 120-180@C with a bisphenol A-based epoxy resin having an epoxide number of 0.18-0.55 mol/100 g, optionally with addition of a catalyst, in particular lithium chloride, tertiary amine, tetraalkylammonium chloride or benzyltrialkylammonium chloride, until a product having an acid number of less than 5 mg of KOH/g is obtained.
Patent DE-3902694-A1 (DE)
Title: Wheelchair with adjustable seat
Inventor: KOEPKE MANFRED
IPC: A61G5/10
Filed: 1989-01-30
Abstract: There is described a wheelchair having a seat and lateral frame parts on which wheels are coupled. Simple adjustment of the seat parameters: seat depth, seat inclination, inclination of the back rest and relaxation position, without any impairment of the foldability of the wheelchair is achieved in that seat support parts are coupled on the lateral frame parts so as to be pivotable about an axis which essentially corresponds to the centre-of-gravity position of the wheelchair user and extends in parallel with the rear wheel axle, and in that a device for the pivoting adjustment of the seat support parts about this swivelling axis is provided between an essentially horizontal normal position and a relaxed position which is tilted toward the back of the wheelchair. An advantageous embodiment of the pivoting adjustment device comprises a toggle lever system which can be operated by the wheelchair user without any large expenditure of force via levers lying in the access region of the wheelchair user.
Patent DE-3902922-A1 (DE)
Title: Audio-frequency (AF) interface field
Inventor: JAEGER ALFRED
IPC: H04B3/46
Filed: 1989-02-01
Abstract: A printed circuit board with measurement and disconnection sockets on the front side enables identical disconnection, measurement and testing facilities of all AF channels individually, independently of the equipment technology and manufacture. This interface card is inserted between transmission equipment and downstream technologies, such as telephones. The interface cards with a power supply and scanning device are combined to form an interface field. Measurement and testing functions are possible via a scanning device with a dialling keypad which is either permanently installed or transportable. The equipment insert in the portable unit can also be used in any existing TF frame of the 7R series.
Patent DE-3909800-A1 (DE)
Title: Diaphragm pump for pneumatic delivery of fluidised bulk solids
Inventor: STEINBERG HORST DIPL ING
IPC: F04B43/073
Filed: 1989-03-24
Abstract: The invention relates to a constant-pressure diaphragm pump of mirror-symmetric design, in which the pump chambers, to avoid detrimental dead volumes (clearance volumes) have a chamber wall which matches the diaphragm deflection when the diaphragm piston is in the discharge end position and the intake end position. The intake and discharge ports are arranged at an inclination, with respect to the central horizontal plane of the pump chambers, which exceeds the slope gradient (angle of repose) of the bulk solid. In addition, provision is made for that respective pump chamber, in which the diaphragm piston commences its discharge or displacement stroke, to be supplied with compressed air to fluidise the bulk material drawn in. Overall, the diaphragm pump is distinguished by optimum pump capacity and delivery. <IMAGE>
Patent DE-3923849-A1 (DE)
Inventor: SCHWEISS PETER
IPC: D21D5/24
Filed: 1989-07-19
Abstract: A hydrocyclone has a separating part A with a diameter which toward its outlet end for the heavier fraction decreases gradually from a diameter 2 Ra, with the radius being subject to the formula: R=Rax 2ROOT 1-x/1. This describes essentially the shape of a parabola, so that the separating part can practically be considered as a paraboloid. Achieved thereby is an optimum separating performance of the hydrocyclone.
Patent DE-3936501-A1 (DE)
Title: Fire protective cladding for open cable ducting - uses abutting cover panels with overlapping joints at their adjacent edges
Inventor: WEISS WERNER
IPC: E04B1/94
Filed: 1989-11-02
Abstract: The fire protective cladding is provided by a series of abutting cover plates (1), each comprising an open sheet metal casing (4) fitted with a layer (5) of a fire-resistant material. The abutting edges of the casing and the fire resistant layer (5) for each two adjacent cover plates (1) are stepped to provide an overlapping joint which has a flush external appearance. An expansion slot is provided between the abutting side edges of the adjacent casings (4), across which the fire-resistant layer (5) is overlapped. USE - For open cable ducting in concrete walls etc.
Patent DE-3940940-A1 (DE)
Title: Coupling for mobile liq. manure container - has two=piece tube to engage with suction pipe
Inventor: STROEHM HUBERT
IPC: F16L37/58
Filed: 1989-12-12
Abstract: The coupling device is for a mobile liq.manure container.  It can attach to the suction pipe leading to a liq. pit and consists of a first piece of tube (1) and a second piece of tube (2). The second tube (2) can be pushed longitudinally against the first tube (1), and has seals (3) at its free end which engage with the end (4) of the suction pipe. USE/ADVANTAGE - The coupling device is simplified so as to largely exclude trouble and improve operating safety.
Patent DE-3942353-A1 (DE)
Title: Strong, flexible laminar thermoplastic pipe - has innermost impervious lining bonded to mechanically strong layer, then braiding for reinforcement, and outermost thermoplastic sleeve
Inventor: KRAWCZEWICZ KLAUS
IPC: F16L11/12
Filed: 1989-12-21
Abstract: A laminar wall thermoplastic pipe for use in safety systems has an inner pipe, bonding layer, braiding and an outer pipe. The inner pipe consists of two layers bonded together, one of which is cross-linked; this inner liner is bonded to the braiding and then the outermost pipe. Prefd. materials are polyamide for the innermost and outermost layers, and a thermoplastic resin for the adhesive used. To improve the mechanical strength of the end prod. it can contain two layers of braiding instead of one. The two layers making up the inner pipe are used because the one provides the mechanical strength and the other the imperviousness to the liq. or gas passing through. The two can be coextruded. Alternatively a cross-linking operation can be used. The braiding layer assists in transmitting stresses from one face to the other. ADVANTAGE - The structure of the pipe makes it impervious to liqs. carried (e.g. liqs. which are environmentally unfavourable). They are flexible yet resistant to buckling. They withstand high pressure and temp. and are wear-resistant.
Patent DE-3943028-A1 (DE)
Title: Combined container with metal outer receptacle - incorporates inner plastics container and has stopper with thread and collar
Inventor: KLEIN DIETER
IPC: B65D90/10
Filed: 1989-12-27
Abstract: The combined container consists of a metal receptacle (9) which contains a plastics inserted container (8). A stopper (3) with a thread and plug is fixed to a collar (1) sealing the inside of the lid. The collar (1) has a U-shaped narrow part (2) pointing inwards. The stopper (3) has a radial groove (4) into which the narrow part (2) of the collar (1) fits, to form a snap closure. The stopper (3) forms steps (5) against which rests a large-volume sealing-ring (6) sealing the gap (7) between the inserted container (8) and the receptacle (9) against the liquid penetrating. USE/ADVANTAGE - The metal lid or collar can easily be released and reused after washing.
Patent DE-4003439-A1 (DE)
Title: Refrigerator with two bearing arms for reversible door - one of which being out of use is covered by close-fitting cap over entire length
Inventor: ROESER DIETER DIPL ING
IPC: E05D7/02
Filed: 1990-02-06
Abstract: In the refrigerator to enable the door to be attached at either side of the cabinet (1), and additional arm (2) projects from its face (3), with a hole (4) drilled through it to receive the hinge pin. The two arms are mirror-images of each other in the central vertical plane (5). For aesthetic reasons the unused arm is covered by a cap (6) incorporating a slit (11) in its front face (10) for removal using a screwdriver blade. ADVANTAGE - Door can be hung to either side with little difficulty and without detriment to utilisation or appearance of the appliance.