baber/WOPTO huggingface dataset:
Patent DE-3906792-A1 (DE)
Title: Extinguishing-agent container for a release barrier in underground mining
IPC: E21F5/14
Filed: 1989-03-03
Abstract: The invention relates to an extinguishing-agent container for a release barrier in underground mining for combating coal dust and/or fire-damp explosions. It is made of a brittle plastic or the like and is equipped with an explosive charge. In order to improve an extinguishing-agent container of the aforesaid type to the effect that, in the event of an incorrect release of the explosive charge of the same, persons in the surrounding area of the extinguishing-agent container are protected from flying splinters of the container, it is proposed according to the invention that the extinguishing-agent container (1) be completely surrounded by a net (5), the surface of which is dimensioned to be several times larger than that of the extinguishing-agent container (1). The net (5) is secured to the extinguishing-agent container (1) by means of bands of elastic material. The extinguishing-agent container (1) is provided with at least one closable feed opening and consists of two half shells which are of trough-like design. <IMAGE>
Patent DE-3909758-A1 (DE)
Title: Method for self-location of moving objects on the basis of long-wave, mutually phase-locked signals
Inventor: SEITZER DIETER PROF DR ING
IPC: G01S1/30
Filed: 1989-03-23
Abstract: In the case of a method for self-location of moving objects on the basis of long-wave, mutually phase-locked signals, these signals are received, converted and modulated onto a carrier, transmitted, received, demodulated and used for position determination of the moving object. In order to compensate for the influence of fluctuations in a local-oscillator signal which is used for conversion of the received long-wave signals, an oscillator phase signal is transmitted, according to the invention, and is used for phase correction of the demodulated received signal, in order to compensate for the influences of phase fluctuations in the local-oscillator signal on the location determination of the moving object.
Patent DE-3913936-A1 (DE)
Title: Catheter for removing stone from ureter - has loop formed on end of shaft enclosed in reversible collar
Inventor: WIEDECK JOERG-GUENTER DR MED
IPC: A61B17/22
Filed: 1989-04-27
Abstract: A catheter, for removing stones from the ureter, has a hollow shaft (1) made of flexible plastics. A fine wire (2) passes through the shaft and out through a hole (3) in the shaft wall. This wire (2) is attached to the distal end of the shaft (1). By pulling on the wire (2) the end portion of the shaft can be bent to form a loop which enables the stones to be removed from the ureter. A conical collar (4) of soft plastics film is fitted to the shaft near to the hole (3). When the catheter is inserted into the ureter this collar (4) extends in the proximal a direction. As the catheter is being withdrawn from the ureter the collar (4) is turned inside out so that it extends over the loop and so holds the stones in the loop as the catheter is removed from the ureter. USE - Removal of stones from the ureter.
Patent DE-3916372-A1 (DE)
Title: Embossed pattern transfer onto metallic platens for laminate prodn. - by precise location of etching resistant material in given pattern by pick=up roll, screen printing and engraving rollers
Inventor: WALTER HANS ROBERT
IPC: C23F1/02
Filed: 1989-05-19
Abstract: A process for embossing large metal press platens or endless belts for plastics production deposits an etching resisting material directly onto the platens or belts by means of an engraved roller to give a prescribed pattern of point or linear nature. Equipment consists of a dish containing the etching resisting material in which a pick-up roller rotates and transfers the material directly to a screen printing roller.  An adjacent engraving roller picks up the etching resisting material from the screen printing roller and transfers it directly to the platen or belt. USE/ADVANTAGE - Embossed plates or belts are obtd.' from transfer of a given structural pattern to plastic laminates or coated chipboard used in furniture. The defined pattern are transferred precisely onto the platen or belt without influence from the engraving roller pressure.
Patent DE-3928595-A1 (DE)
Title: Asymmetrically substd. urea(s) prodn. - by passing prim. or sec. amine into hot gaseous mixt. of isocyanic acid and ammonia and cooling reaction mixt. to condense prod.
Inventor: STERN GERHARD DIPL ING DR
IPC: C07C273/18
Filed: 1989-08-29
Abstract: Asymmetrically substd. ureas (I) are prepd. by introducing a prim. or sec. amine into a gaseous mixt. of isocyanic acid and ammonia at 250-600 deg.C and cooling the reaction mixt. by which the (I) condenses out. Pref the amine is introduced at a temp. of 320-380 deg.C and 1-7 equivs. esp. 1.1-3 equivs. prim. or sec. amine is introduced per mol. isocyanic acid. Pref. the reaction mixt. is cooled in an inert diluent such as water or an organic solvent such as a low aliphatic alcohol. USE/ADVANTAGE - Allows prodn. of (I) from isocyanic acid/ammonia mixts. pbtd. by thermal decomposition of urea e.g. as described in EP-124704, without first isolating the isocyanic acid. The prim. or sec. amine reacts with the isocyanic acid despite the presence of the ammonia to yield the assymetrically substd. urea prod. which is then condensed out and is thus sepd. from the ammonia.
Patent DE-3929794-A1 (DE)
Title: Fibre=optic light source module in four-way multiplexer on common axes - uses four laser-diodes focussed through 3 dB beam splitters to add signals at output signals
Inventor: BIALAS JOACHIM DR
IPC: G02B6/36
Filed: 1989-09-07
Abstract: Four laser-diodes (LD) are mounted on a single substrate (TK1) their beams being focussed through spherical lenses (KL) before passing through 3 dB light-splitting mirrors (SA) to combine in separate light-conductors (LWL) transmitting their signals in coplanar and orthogonal directions through four output ports and along common optical axes. The device may also be duplicated and mounted on a parallel assembly. ADVANTAGE - Multiplexed light signals may be produced fourfold with minimal loss in total light intensity. Substrate, which may be of silicon, can be mounted parallel to a similar assembly, maintaining optical alignment.
Patent DE-3931508-A1 (DE)
Inventor: BLEIER ROBERT
IPC: G06K7/06
Filed: 1989-09-21
Abstract: A chip card reader comprises a contact support and a card receiver. The card receiver can be moved back and forth in the contact support so that, when a chip card is inserted in the card receiver, the card receiver is moved (lowered), together with the card, toward the contacts in the contact support.
Patent DE-4001944-A1 (DE)
Title: Power lifting element - in which has one elastomer system for sealing and another one for deflection by power fluid
Inventor: ARNDT DETLEF DIPL ING
IPC: B66F3/24
Filed: 1990-01-24
Abstract: A power lifting unit (1) has two cylindrical metal parts (2,3) with fastener bolts (4) and two elastomer rings (5,6), also elastomer bridges (7,8), joined by adhesive surfaces (9,10,11).  The contact surface (12) is non-adhesive. A gas or a hydraulic fluid (15) can be admitted for the power lift through the passage (13) in the chamber (14). The preferred material for the two elastomer systems (5,6) is butyl rubber, nitrile butadiene rubber or silicone rubber. ADVANTAGE - This is a compact space saving unit with little deflection which can be produced at low cost.
Patent DE-4002695-A1 (DE)
Title: Car brake disc with two-side friction faces - which have raised regions between marks in disc rotation direction
Inventor: MARTIN ROLAND
IPC: F16D66/02
Filed: 1990-01-27
Abstract: The brake disc has friction faces on both sides, against which brake pads are compressible. The friction faces (5,6) are partly raised. The raised sections (10) are located between markings (7), which extend in the direction of rotation (11) of the brake disc. The markings are pref. formed as grooves and have a depth (a) corresp. to a max. depth of wear (b) of the brake disc. The markings may consist of letters and/or numbers e.g. maker's name. ADVANTAGE - Easy discernible wear even from outside.
Patent DE-4003426-A1 (DE)
Title: Magnetic field dependent electronic proximity switch - has oscillation circuit coil with plastics coil former, enriched by powdery, permeable material
Inventor: MUELLER JENS
IPC: H03K17/00
Filed: 1990-02-06
Abstract: The proximity switch is actuated by an approaching magnetic trigger, which affects an HF oscillation circuit (14) in an oscillator (13), whose coil contains a body magnetisable by the trigger magnetic field. From a preset magnetic field strength, the body can be driven into magnetic saturation by the trigger magnetic field, on deattenuation of the oscillation circuit. - The magnetisable body is an amorphous metal strip (33) of high permeability, whose losses determining the state of the oscillation circuit are reduced with increased magnetic saturation. The coil former (29) of the oscillation circuit coil (16) is made of plastics and enriched with powdery, permeable material (34).
Patent DE-4005341-A1 (DE)
Inventor: KATO KATSUYUKI
IPC: D05B35/06
Filed: 1990-02-20
Abstract: A label push-in element 31 is provided under a label 65 put at a label rest position and a label retainer 6 is disposed over the label. The push-in element is advanced upwards to force the intermediate portion of the label into the retainer and is retracted after the retainer has clipped the label. The retainer is moved horizontally to a sewing position over a cloth 64 spread on a sewing machine table. When the retainer is moved the end portions of the label protruding from the retainer hit an object near the sewing position, such as the edge of the table, and are folded towards the direction opposite to that of movement of the retainer. The end portions overlapped on the edge of the cloth are sewn thereto by a sewing machine. <IMAGE>
Patent DE-4008906-A1 (DE)
Title: Hollow IC engine camshaft - has drive tube with inner opening incorporating wedges with inner space
Inventor: URBAN PETER DIPL ING
IPC: F16C3/02
Filed: 1990-03-20
Abstract: The hollow shaft has a drive tube (12) which have an inner opening and which have diametrically-opposite inward-pointing wedges (16, 17) and an inner space (15) the diameter of which is greater than the outer diameter of the shaft-pipe (11). The internal diameter (D1) of the drive pieces (12) near the wedges (16, 17) can be altered by radial forces (FA) applied from outside. The wedges fit into lengthwise grooves (18, 19) on the outer surface of the shaft-pipe (11), as a result of the elastic pre-stressing of radial forces (FK). USE/ADVANTAGE - The preferably hollow shaft can easily be fixed.
Patent DE-4011521-A1 (DE)
Title: Function monitoring circuit for automobile ignition system - allows fuel injection valves to be switched out upon loss of function signal
Inventor: KRAUTER IMMANUEL DIPL ING
IPC: F02P17/12
Filed: 1990-04-10
Abstract: The circuit (10) uses a comparator (12) for comparing the self-induction voltage, obtained upon switching out of the ignition coil (14), with a given threshold voltage, to provide a function signal when the self-induction voltage is above this threshold. The fuel injection valves associated with the ignition coil (14) are disconnected when the function signal fails. Pref. the circuit (10) has a resettable flip-flop (13) for storing the function signal, coupled to a microcomputer (17) for control of the fuel injection valves. ADVANTAGE - Prevents damage to catalyser in engine exhaust.
Patent DE-4012545-A1 (DE)
Title: Surgical instrument handpiece connected to HF surgical appliance - has light outlet opening provided at electrode side end of handpiece supplied by cold light fibre optic
Inventor: HAGEN UWE DIPL ING
IPC: A61B90/30
Filed: 1990-04-19
Abstract: The handpiece (1) in the region of the light outlet opening (7) is provided with lenses, mirror, colour filter or similar, for the altering of the light beam characteristics.  The handpiece has a tubular housing, the inner wall of which forms one or more strip form running light conductor sections, over the length of the handpiece from the connection side to the HF surgical unit (2) up to the light outlet opening. The handpiece has at least one on/off switch (10,11) for the current to the electrode (4).  The HF supply to the electrode only results after a time delay when the handpiece is illuminated, and with the failure or the switching off of the illumination, the HF is also automatically switched off. USE/ADVANTAGE - Surgical handpiece. Surgical operation made easier with enhanced safety.
Patent DE-4023206-A1 (DE)
Title: Roast or grille grate for cooking oven - has stirrups at either side with legs to telescope inside parallel rear and front sleeves
Inventor: ZENKER WOLFGANG
IPC: F24C15/16
Filed: 1990-07-19
Abstract: The extensible roast, or grill grate is guided in slotted ducts in the oven side walls, and has a support rack (3) coupled at either side to bracket slidable in the ducts. The support rack is fitted between several tubes (4, 5) with open end sides, into which are slidably inserted parallel chambers of the brackets (6, 7) in the longitudinal direction of the rack tubes. ADVANTAGE - Compact design for versatile use.
Patent DE-4023278-A1 (DE)
Inventor: GROSS GERHARD DR
IPC: C01G19/02
Filed: 1990-07-21
Abstract: The invention relates to a process and an apparatus for the preparation of a metal oxide powder, wherein a metal melt is treated with oxygen, and the oxygen (20) atomises the metal melt, which is preferably present as a metal jet (15), and simultaneously oxidises the resulting metal particles in one operation. <IMAGE>
Patent DE-4024245-A1 (DE)
Title: Sealing system for old rubbish dump - has mines trough-section gallery below to form inclined sealing dish
Inventor: VOLLENBERG KARL DR
IPC: E02D31/00
Filed: 1990-07-31
Abstract: The sealing system is of, an old rubbish dump, using an inclined dish forming the base seal and inserted under the dump. This dish is formed by mining a gallery under the dump with a trough-shaped working face.  The gallery can then be backfilled fully and at adjustable density, using suitable  building  material, and an inspection shaft can be formed at the lowermost point, to check for escape of pollutants or ground water penetration. ADVANTAGE - Protection against escape of poisonous matter into subsoil etc.
Patent DE-4035545-A1 (DE)
Title: Sign fixed to building door - comprises baseplate with guide pieces on which cover plate is displaceable
Inventor: WEICKERT PETER
IPC: G09F7/10
Filed: 1990-11-08
Abstract: The sign also includes lateral closure fillets which connect to the face-side edges of the cover plate (5). The baseplate (6) incorporates several holes, in which guide pieces (14) with a back-cut edge for the guides of the cover plate are inserted. The guide pieces (14) are formed as knobs with a rounded head part on a cylindrical pin, and the edges of the knobs are cut back with an inclined surface. The knobs are secured in the holes by means of an arresting bulge, and the later al closure fillets form part of a closed frame. It is also provided possible to have several cover plates (5) on the baseplate (6). USE - As a door nameplate for businesses and domestic use.
Patent DE-4041026-A1 (DE)
Title: Gekühlte dünne Verkleidung aus Metall
Inventor: LIANG GEORGE P
IPC: F02K1/82
Filed: 1990-12-20
Abstract: Ein erstes Metallflachstück (34) besitzt Öffnungen (46), die mit Vertiefungen (40) in einem zweiten Metallflachstück (36) ausgerichtet sind, das mit dem ersten Metallflachstück (24) in Berührung steht. Jede Vertiefung besitzt eine stromabseitige Wand (42), die sich in einem Winkel von 24 DEG von der Ebene der Flachstücke wegerstreckt. Eine in der Vertiefung (40) vorhandene Dosieröffnung (56) ermöglicht das Einströmen von Kühlluft in einer derartigen Richtung, daß die Kühlluft zuerst auf einen Überdeckungsbereich (48) der ersten Platte bzw. des ersten Flachstücks auftrifft, bevor sie dann die stromabseitige Wand (42) entlangdiffundiert.
Patent DE-4042109-A1 (DE)
Title: Guide wire for incubator - is bent to form a hand grip with an eye to receive the thumb
Inventor: WEIPKEMA WALTER DIPL ING DR ME
IPC: A61M16/04
Filed: 1990-12-28
Abstract: The intubactor is used to insert a tube into the trachea of a seriously ill patient. It has a guide made from rigid wire (1) to guide the tube into its required position. One end of this wire is bent to form a quarter of a circle with a radius equal to twice the dia. of the tube. The other end is bent to a U-shape. The free end of the U-shape is then bent to form an eye and then welded to the opposite leg of the U-shape. An elongated loop is thus formed with a length corresp. to the width of a doctor's hand whilst the eye is large enough to receive the thumb. USE - Insertion of a tube into the trachea.
Patent DE-4103462-A1 (DE)
Inventor: RIEDL WERNER
IPC: H01M4/76
Filed: 1991-02-06
Abstract: In a galvanic cell of flat construction, for example an Ni/Cd button cell (1), the tablet-type pressed powder electrodes (2, 3) have a protective casing composed of an expanded-metal lattice work foil (4) which also assumes the role of the electric current collector. With a material thickness of between 0.05 and 0.15 mm a reinforcement of this type wears out less than otherwise standard wire gauzes and makes possible a wider variety in the size and shape of the lattice work meshes, depending on the degree of stretching. The metals from which the expanded material is formed are preferably nickel, stainless steel, nickel-plated steel and copper. <IMAGE>
Patent DE-4103553-A1 (DE)
Title: Glass fibre cutting - uses defined side contact against recessed tool by advance movement without fibre torsion twist
Inventor: KREITEL MICHAEL DIPL ING
IPC: G02B6/25
Filed: 1991-02-06
Abstract: To cut one or more glass fibres, with a recessed tool to apply side contact to them and hold them in the operating position without torsion twist, an advance movement gives the defined side contact between the tool (2) and the glass fibres (1) so that they are noticed and simultaneously deflected. A pressure is applied at the notching point which works against the draw tension. After notching, the pressure is continuously reduced as the tool (2) is retracted, until the end of the cutting operation. Pref. the glass fibres (1), in the working position, are under a draw tension of 100-200 MPa. During notching, the glass fibres (1) are deflected by a gap which is at least equal to their dia., The tool (2) is brought into contact with the glass fibres (1) in a dampened advance movement. ADVANTAGE - One or more glass fibres with a dia. equal to or more than 80 microns can be cut cleanly, without complex mechanical and electronic systems, with min. end angle faults.
Patent DE-4106351-A1 (DE)
Title: Ski holder with profiled rail - has several spaced yokes forming holders with distance arm protruding at right angles and having locking arm adjoining at distance
IPC: A47B81/00
Filed: 1991-02-28
Abstract: This rail has a uniform generally C-shaped cross section with back wall, side walls and front wall webs wherein facing guide grooves are formed between the front and rear wall sections. A number of yokes (16,17) are provided which each have a guide arm (18), a distance arm (20) protruding at right angles at one end, and a locking arm (22) adjoining the end of the distance arm and running parallel to the guide arm. The guide arm is displaceably guided in the guide grooves of the rail and can be firmly clamped by means of a clamping screw (28) which can be screwed in the guide arm and presses against the rear wall of the rail (12,13). Two identical yokes can be clamped mirror symmetrical on the rail with their locking arms (22) pointing towards each other so that an inlet gap (24) is formed between the two locking arms with a width equal to at least double the thickness of one ski. ADVANTAGE - One standard rail and several identical but separate yokes can be used to make up the holder.
Patent DE-4107025-A1 (DE)
Title: Method of making one's own cigarettes - by using tobacco supplied in the form of a cartridge
Inventor: MENTZEL EDGAR
IPC: A24C5/40
Filed: 1991-03-01
Abstract: The smoker is able to make his or her own cigarettes by using a tubular sleeve (10) of cigarette paper which has a filter tip (12) fitted to one end. The tobacco is supplied in the form of a cartridge (2) which is cut from a long string of tobacco. The cartridge is enclosed in a sleeve of combustible material, which is permeable to air so that can be drawn through it to enable the tobacco to be burnt. The tobacco cartridge is shorter than the outer sleeve (10) and a spacer (16) is fitted between the end of the tobacco cartridge and the filter tip (12). USE/ADVANTAGE - Making one's own cigarettes. The spacer prevents the wastage of tobacco which is normally thrown away in a cigarette end.
Patent DE-4107445-A1 (DE)
Title: Composite soap bar prodn. - by subsidiary soap introduction into basic soap body cavity
Inventor: GAERTNER STEFAN
IPC: C11D13/14
Filed: 1991-03-08
Abstract: In the prodn. of a soap bar comprising a basic soap body with a cavity contg. a subsidiary soap body of different material, the cavity is formed (e.g, by stamping, pressing or cutting) to a depth so that it reaches at least the core region of the basic body and the subsidiary body is introduced into the cavity either as a separate moulding or as a shapeless hardenable mass. ADVANTAGE - The soap bar is produced at moderate cost. The contrast between the two bodies is not lost during use
Patent DE-4114735-A1 (DE)
Title: Motor vehicle seat - has seat depth adjustment with connected bridging gap between upholstered seat section and frost section during latter's forward movement
Inventor: WINTERSHOFF WERNER
IPC: B60N2/62
Filed: 1991-05-06
Abstract: The seat is provided with a connection which bridges the gap (13) between the seat upholstery section (4) and front section (6) of the seat during forward movement of the latter. The front section is installed to move on the seat frame during forward movement and is made of foam material. The front seat section (6) is in the form of a roller (7) and the covering (16) wound onto the roller (7) forms the gap-bridging connection. ADVANTAGE - A comfortable seat is developed.
Patent DE-4117686-A1 (DE)
Title: Rotary cutting tool for excavation work - has blades arranged over body formed from two truncated cones such that spoil is led behind tool head
IPC: E02F3/20
Filed: 1991-05-29
Abstract: The rotating head is formed from two hollow, truncated cone sections (6, 7) joined along there base to form a single body. To the inclined surfaces on the sides of the tool and on the plane leading surface, cutting tools (20) are fixed at a set height (h). The excavated material can exit through openings under cutting tools and is led back over the tools surface. USE/ADVANTAGE - Head shape and cutting blade arrangement allow for spoil to be removed.
Patent DE-4118764-A1 (DE)
Title: Organic additives for ferric chloride-contg. copper@ etch solns. - comprising complex-forming organic acids which prevent sludge formation
Inventor: DOERRENBACH FRANK DR
IPC: C23F1/18
Filed: 1991-06-07
Abstract: Etching Cu with etch solns. contg. HC1 and FeC13 as the oxidising agent. One or more complex-forming organic acids are added to the soln. Pref. the complex-forming acid is a di- or tricarboxylic acid, or a hydroxycarbonic acid. Alternatively, the organic acid is tartaric, citric, gluconic or other saccharic acids, malic, succinic, adipic or maleic acid. The organic acid content of the etch soln. is 5-50 g/l, most pref. 10-20 g/l. The soln. also contains a sugar and a polyethylene glycol. The soln. is most pref. a mixt. contg. 90% tartaric acid, 3 % citric acid, 3 % glucose and 4 % polyethylene 6000. USE/ADVANTAGE - The process is used in the etching of printed circuit boards. The invention claims to prevent the formation of iron hydroxide-contg. sludges. These are formed in conventional processes and lead to line blockages, vessel blockages, etc. Since no sludges are formed, no filtration stage is required here.