baber/WOPTO huggingface dataset:
Patent DE-4114793-A1 (DE)
Title: Fixed blades for a document shredding machine - are formed from a metal strip mounted by the side of the rotor
Inventor: MEIER KLAUS
IPC: B02C18/00
Filed: 1991-05-06
Abstract: The document shredding machine has a rotor (3) with circular blades which are equally spaced along the length of the rotor. These rotating blades cooperate with a row of fixed blades which are mounted along the side of the rotor. The fixed blades are formed from a sheet of metal (11) in which rectangular holes are stamped. The holes are equally spaced and arranged in a row with a bar of metal which forms a fixed blade, separating adjacent holes. ADVANTAGE - Document shredder with fixed blades which are easily made and installed.
Patent DE-4114823-A1 (DE)
Title: Collapsible roof for cross country vehicle - consists of separate front and rear sections, each with their own covering
Inventor: HOPF INGO
IPC: B60J7/12
Filed: 1991-05-07
Abstract: The collapsible roof consists of a front section (4) covering the forward portion of the vehicle, and a separate rear section (5), each with their own covering. The front hoop (7) of the front section pivots on the roll bar (2), and the centre hoop (11) and rear hoop (12) of the rear section pivot by longitudinally adjustable connecting pieces (15,13) on the upper edge (3) of the vehicle in the region of the roll bar. ADVANTAGE - The roof can be just partially opened.
Patent DE-4115416-A1 (DE)
Inventor: KLEILE ARMIN
IPC: G02C9/00
Filed: 1991-05-10
Abstract: The combination spectacles proposed comprise a frame and an attachment which can be mounted on the front of the frame, the front of the frame having, in the front surface at each end, a cavity designed to accommodate a projection on the attachment. Cavity and projection together form a snap-in joint, the cavities being slightly longer in the direction of the longitudinal axis of the frame front piece than the projections which engage in them.
Patent DE-4116543-A1 (DE)
Title: Pressing multilayer circuit board without creasing copper@ foil - separating packets of layers for lamination between sheets of steel undergoing comparable thermal expansion
Inventor: MAYER HEINRICH
IPC: H05K3/46
Filed: 1991-05-21
Abstract: Circuit boards are mfd. by hot-pressing of packets of internal layers (1) alternating with prepreg layers (3), each packet being overlaid and underlaid with Cu foils (2) and sepd. from its neighbours in the stack by steel sheets (4). Conventional steel having an expansion coefft. of 10 ppm/dec.C when heated to the lamination temp. (180 deg.C) creases the foil. An increase to 16 ppm/deg.C comparable with the coefft. of the Cu, eliminates this differential expansion problem. ADVANTAGE - Prod. quality and yield are improved with temporally and spatially uniform thermal expansion of steel sepn. sheets and Cu foils.
Patent DE-4116940-A1 (DE)
Title: Fastening clamp held in grooved profiled rod - has two articulated spring-tensioned swivel arms allowing infinite adjustment
Inventor: HEUSER HANS-JOERG
IPC: B65H19/30
Filed: 1991-05-24
Abstract: The two arms (37,38-) swivel towards each other against the action of the spring (36). One of the arms (37) is supported against the side face (40) of the profiled rod (41) having the T-groove (39) and the other arm (38) supports on a pin (43) a head (44) which engages in the T-groove (39). The pin (43) engages through an opening (45) in the arm (37) adjoining the profiled rod (41) so that the pin with the head (44) is supported with play in an opening (46) of the second arm (38) and swivels on a cross pin (47). The head (44) swivel mounted on the second arm (38) is thereby reliably guided in the T-groove. USE - The clamp is adjustable by pressing together the two arms. It can be secured automatically on the profiled rod by releasing the two arms.
Patent DE-4122442-A1 (DE)
Title: Interlocked floppy disc drive in computer system - uses unit inserted into loading slot with key-operated latch that cannot be removed without use of key
IPC: G11B33/00
Filed: 1991-07-06
Abstract: The entry slot to a floppy disc drive on a computer system is interlocked against unauthorised access using lockable insert. The latter is in the general form of a floppy disc with a lock unit (A) located along the centre line. The lock has a coupled bar (B) that can be turned through 90 deg. such that a profiled hook element (C) prevents removal. The unit is operated by a key.
Patent DE-4126599-A1 (DE)
Title: Liq. level meter for stationary or moving containers - exploits medium frequency signal attenuation evaluated by processor which gives proportional output after preliminary learning phase
Inventor: REICHERT CURT
IPC: G01F23/26
Filed: 1991-08-12
Abstract: Two transmitting electrodes (3) arranged on either side of the container (1) are supplied (9) with sine waves in phase at typically 2 MHz. The quantity of the contents affects the strength of signal reaching the receiving electrodes (4) connected by oscillatory filter circuits (6) to amplifiers (7) and rectifiers (8). The receiving electrodes (4) are positioned above the transmitters (3) and near that part of the container (1) in which liq. level can vary. A signal processor produces an output proportional to the deg. of filling. USE/ADVANTAGE - Esp. with galss or plastics material containers, partic. precise measurement is achieved cheaply and contactlessly.
Patent DE-4128864-A1 (DE)
Title: Fastening for additional cylinders to printer - has auxiliary frame at each side which is bolted to main frame
Inventor: ERFURT EBERHARD
IPC: B41F13/00
Filed: 1991-08-30
Abstract: The rotary printing machine (2) has a main frame with side frames (11). In order to print in additional colours additional cylinders mounted in auxiliary side frames (4) can be bolted to the main side frames. The main side frame has two joint faces at right angles to each other. The vertical joint face has two tapped holes in the floors of the recesses with semi-circular cross-section whilst the horizontal joint face has one tapped hole and one recess. USE/ADVANTAGE - Adapting a printing machine to increase the number of colours which can be printed.
Patent DE-4141681-A1 (DE)
Title: Overvoltage protection device e.g. for telecommunication equipment - has plastic web projecting into spark-gap between two vertical electrodes which releases electronegative gas when arc strikes
Inventor: SCHEIBE KLAUS PROF DR ING
IPC: H01T1/20
Filed: 1991-12-17
Abstract: An overvoltage protection device for the discharge of transient overvoltages has at least two cylindrical, preferably vertical, electrodes and an airgap between them. There is an element to assist the abrupt discharge in the airgap which projects into the gap like a web. It is made from plastic with low resistance to surface creep currents. Under the effect of an arc, the plastic releases electronegative gases. One electrode is surrounded by the other and there are preferably three such plastic webs between the electrodes. There may be an additional third electrode around the whole assembly with preferably three webs between the this electrode and the one immediately inside it, staggered with respect to the innermost webs. ADVANTAGE - Better arc striking and extinction properties.
Patent DE-4142300-A1 (DE)
Title: Telecommunication terminal with simultaneous voice and data connection - incorporates electronic speech circuit linked to handset and control unit operative also on data network termination
Inventor: LOETZSCH JUERGEN DIPL ING
IPC: H04M11/00
Filed: 1991-12-20
Abstract: A so-called TEMEX interface (TSS) of a network termination (TNA) is integrated into the terminal (TE) and linked to its controller (SE), which produces acoustic signals and/or optical displays when data transfer takes place. For reproduction of the acoustic signals and display information the proper electroacoustic converter (EAW) and display device (AE) already at the terminal are used. The same user interface and operating procedures are employed. ADVANTAGE - Optimal common use is made of existing operational controls and displays so that data can be accepted and conventional speech communication established without additional indicators, keys or acoustic signals.
Patent DE-4206679-A1 (DE)
Title: Procedure for disposal of rubbish - using large skip emptied into larger container on carrying vehicle and made available for refilling, larger container being moved to deposit when filled
Inventor: MINSEL KAI
IPC: B65F3/04
Filed: 1992-02-28
Abstract: The carrier vehicle (1) reverses with a large collection container on board (3) to the filled large skip (4), the pick-up device is pivoted backwards, and the attachment chains are suspended in the skip to be emptied. The large filled skip is then lifted, describing a circular path until hooks (2) on the skid of the skip and at the end of the collection container engage. Through a further pivoting movement of the pick-up device, the skip is moved out of its paprallel position, executing a tipping motion. After the contents of the skip have been fully discharged into the collection container, the pick-up device is pivoted further downwards, setting the skip in its former position, ready for refilling. The carrying vehicle can now empty further skips and, utlimately, when the large container is full, proceed to the deposit for discharge of all the contents of the large container. USE/ADVANTAGE - To optimise on the usage of rubbish skips by having them almost continuously available for loading, and to minimise the use of carrying vheicles.
Patent DE-4209368-A1 (DE)
Title: Hydroxy-functional radically curable polyether prodn. - by reacting alpha, omega-di:epoxide with alpha, omega-diol and then with sub-stoichiometric amt. of unsatd. isocyanate or acid chloride, etc.
Inventor: FEUCHT HANS-DIETER DIPL CHEM D
IPC: C08G59/14
Filed: 1992-03-23
Abstract: The hydroxy-functinal polyethers have formula (I), where n = 0, 1, 2, 3 or 4; X = H or Z; if n = 0, X = H only; if n = 1 or more, not above 30% X = Z; Z = CH2=CR4-COO-R3-NHCO-, CH2=CR4=CO-, Ph-CH=CH-CO- or gp. of formula (II) (with R3 = -(CH2-m-(with M = 1-10); R4 = H or Me); R1 = -(CH2)o- (with o = 0-18) or -CH2-O-R5-O-CH2- (with R5 = -(CH2)p-, Phe, naphthylene, -(CH2)qO)r-, -(CH2CHMeO)s-CH2CHMe-, -(CH2)q-(O(CH2)q)t-O-Ar-O-((CH2)qO)e-(CH2)q-, -(CH2CHMe-(OCH2CHMe)t-O- Ar-O-(CHMeCH2O)t-CHMeCH2- (with p = 2-20; q = 2-4; r = 1-50; s = 0-50; t = 0-25; Phe = phenylene; Ar = Phe, naphthylene, -Phe-CH2-Phe- or -Phe-CMe2-Phe-, -CH2)3-(SiMe2O)u-SiMe2-(CH2)3- (with u = 0-150), or the corresp. gp. derived from 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate (ECH-ECH); R2 = -(CH2)v- (with v = 2-10). Also clained is a process for the prodn. of (I), by reaction of alpha,omega-diepoxides of formula CH2-CH=R1-CH-CH2 (II) with alpha,omega-diols of formula HO-R2-OH (III) in the mol. ratio (1:1.2)-(1:2) at up to 20 deg. C in the presence of a catalyst, followed by reaction of the polyhyroxy-polyether obtd. (IV) with a sub-stoichiometric amt. (w.r.t. OH gps.) of a cpd. (V) suitable for introducing gp. Z, in the presence of a catalyst. USE/ADVANTAGE - (I) are new, OH-functional, radically-curable polyether resins; the hardened resins have the desirable properties of polyethers and also (if urethane gps. are present) those of polyurethanes. The OH gps. in (I) can be modified (e.g. by coupling with functional substrate gps.) to give prods. with applications as biocompatible plastics, membranes for biosensors and chemical sensors etc..
Patent DE-4214021-A1 (DE)
Title: Vacuum fluorescent display panel under drive circuit control - switching heating current on half cycle basis to avoid interference with control signals
Inventor: KOEHL KARL
IPC: G09G3/06
Filed: 1992-04-29
Abstract: A microcomputer (1) is coupled to a vacuum fluorescent display element (2) and receives data (6) processed to generate control signals for the display. The anodes receive one signal via a control channel (4), a separate channel (5) being provided for the grating signals. Heating current is provided by lines (7) handled by a switching stage (3). The anode signals are in the form of a constant frequency, grating signals for the segments of the display being generated in sequence at a related rate. The heating signal alternates between on and off over the full period. ADVANTAGE - Avoids interference between heating and control signals.
Patent DE-4215113-A1 (DE)
Title: Waste disposal and opt. reuse of styrene] foam - by degassing using low mol. wt. alkane(s) and/or alcohol(s) to cause redn. in vol. followed by re-expanding
Inventor: JASCHING WOLFGANG DR
IPC: B29B17/02
Filed: 1992-05-07
Abstract: Solid polystyrene foam (I) is treated with a degassing agent (II), liq. low mol. wt. alkanes (IIa) and/or alcohols (IIb) with a simultaneous redn. in vol. by degassing. (II) is then at least partially sepd. from the polystyrene which may be opt. reused. Pref. (IIa) is a 5-7C alkane, pref. pentane and (IIb) is a 2-5C monoalcohol, pref. ethanol. (II), pref. in small amts., is a solvent for (II) and is pref. a volatile solvent. Degassing of (I) is at room temp. to 40 deg. C and the sepn. of (II) may opt. occur at normal pressure. (I) is at least partially comminuted, pref. by milling to approximately the size of the initial foam beads. Moisture arising from water washing of (I), prior to treatment may be sepd. from the water immiscible (II). Polystyrene is reused by thermal processing, opt. in an admixture with fresh polystyren to form moulded foam articles. Foaming is by addn. of a low mol. wt. alkane, pref. pentane. Residual alkane content of the polystyrene following the defoaming step (less than 10 wt.%, pref. 4-8 wt.%) may be used for refoaming. Refoaming is after defoaming with ethanol at its b.pt. or with liq. alkanes at 15-25 deg. C without addn. of a solvent for polystyrene. Solvents for polystyrene are added at less than 10 vol%, pref. 3-5 vol% (w.r.t. alkane). (I) with a relatively large particle size is initially degassed and at least partially sepd. from (II) followed by further comminution to the primary bend size whereupon it is subjected to the effect of the appropriate liq. alkane as a propellant. Deactivated polystyrene that is propellant free or contains low amt.s of propellant is refoamed to its original capacity by the influence of the appropriate liq. alkanes as propellant. USE/ADVANTAGE - For the disposal and opt. reuse of solid polystyrene foam (I), partic. of moulded waste foam. Process is energy efficient and operates below 100 deg. C.
Patent DE-4218806-A1 (DE)
Title: Mesa LED with n-doped semiconductor substrate - has depressions formed over surface of p-doped epitaxial layer, pref. in edge region and extending to mesa flank
Inventor: BIRKENSTOCK GERHARD
IPC: H01L33/02
Filed: 1992-06-06
Abstract: The LED pn junction (3) is formed by the n-doped substrate (1), on which a p-doped epitaxial layer (2) is deposited. In the latter surface distributed depressions (5) are formed, pref. in the edge region of the epitaxial layer, reaching as far as the mesa flank (6). The depressions may be directly adjacent and may be of a hemispherical shape. Alternately they are formed as strips and grooves. They are typically formed by chemical or physical material removal from the epitaxial layer surface (4). ADVANTAGE - Increased light yield.
Patent DE-4218964-A1 (DE)
Inventor: UPGANG HUBERT
IPC: B05B14/462
Filed: 1992-06-10
Abstract: In the spray-processing of water-based paints, a water-based paint coagulate or filtrate is produced containing 50 to 80% by weight of water, 10 to 30% by weight of binder, 1 to 25% by weight of pigments/fillers and 0 to 15% by weight of organic solvents. In order to recover the individual components, the coagulate or filtrate is mixed with organic solvent, the solvate formed is filtered, the retentate is dried, the permeate is distilled, the residue of the distillation is dispersed in deionised water, the dispersion is distilled, the vapours produced on drying of the retentate and the distillation of the permeate and the distillation of the dispersion are condensed, the condensates are separated into a solvent-rich phase and an aqueous phase, the aqueous phase is divided into a solvent-rich phase and water and the two solvent-rich phases are returned to the circulation. <IMAGE>
Patent DE-4225220-A1 (DE)
Title: Constant current solid state ionising radiation detector and transducer - includes semiconductor or insulator radiation sensor, connected to feedback control circuit and light emitter
Inventor: SCHULZ REINER F DIPL PHYS DR R
IPC: G01T1/24
Filed: 1992-07-30
Abstract: A solid state radiation transducer (1) having a radiation detector (2) to convert incident radiation into an electrical signal. The signal is transmitted to a switching arrangement (4). The switching arrangement (4) controls a light emitter(s) so that its emitted light (6), which is also incident on the radiation sensor (2), maintains the electrical signal from the sensor (2) constant is a feedback loop. The output signal from the switching arrangement (4) is desirable from the control signal to the light emitter(s) and is proportional to the radiation incident on the radiation sensor (2). USE/ADVANTAGE - The radiation transducer is intended for use is measuring and detecting radiation. The radiation transducer is easy to produce and relatively cheap.
Patent DE-4227910-A1 (DE)
Title: Removable carpet tiles having antistatic property - comprises textile top surface, thermoplastic material and (non)woven fabric base
Inventor: OLNHAUSEN HEINZ VON
IPC: E04F15/024
Filed: 1992-08-22
Abstract: Removable carpet tiles suitable for boarded floors have a textile top surface joined to a base of woven or non-woven fabric by an elastomeric adhesive. There is a heavy layer of thermo-plastic body material attached to the fabric. The elastomeric adhesive has anti-static properties, as has the thermo-plastic body material, which is mechanically bonded, at least in parts, to the fabric. Pref. the surface (2) of the tile (1) is tufted nylon on a polyester fabric (3). This may be coloured or patterned by a spray printing process. The textile surface is backed (4) with liquid latex which has an addition of powdered chalk and a dispersion of carbon black. When dry, a further open wove, or non-woven net (6) is pressed on with adhesive (5), which is non-conductive, but does not cover the latex (4) completely. When a heavy layer (7) of thermo-plastic is laid on, this mechanically bonds to the fibres of the net (6) and makes contact with the latex (4) to ensure conductivity. The thermo-plastic may be polypropylene which has an addition of powdered chalk, dispersed carbon black and anti-oxidant, with small quantities of other additives as necessary. ADVANTAGE - The tiles have anti-static properties, and the process of tile production is practical, by reason of the intermediate open fabric which allows the bonding of the anti-static materials.
Patent DE-4228168-A1 (DE)
Inventor: KOPP-HOLTWIESCHE BETTINA DR
IPC: C12S9/00
Filed: 1992-08-25
Abstract: Described is a nutrient concentrate for use as a growth promoter in stimulating the reproduction rate of oil-eating microorganisms intended for use in the biological decomposition of organic materials. The concentrate contains water-soluble and/or oil-soluble compounds of phosphorus (P) and nitrogen (N) which are mixed with other water-soluble and/or oil-soluble organic constituents possessing, at least in part, nutritive characteristics producing growth of the microorganisms. The invention is characterized in that this nutrient concentrate is a storage-stable solution, emulsion and/or dispersion of nutrients containing N and P in a mixed liquid phase comprising as constituents biologically compatible, water-soluble carriers made from glycerin and biologically compatible oil-soluble carriers made from glycerin esters. In another embodiment, the invention concerns the use of these nutrient mixtures in combination with concentrates of microorganisms which are capable of decomposing hydrocarbons, preferably naturally occurring microorganisms. These tools can be used to clean soil, fresh water and/or salt water and in particular to remove and/or accelerate the removal of oil pollution and/or other pollution caused by hydrocarbons on land and/or in water. A specialized application of the invention concerns the use of the nutrient mixtures in combination with appropriate microorganisms for the removal of oil-impregnated cuttings from geological borings on land or in the sea.
Patent DE-4230736-A1 (DE)
Title: Ring spinning frame has equipment to change travellers on rings - by replacing old traveller, when it reaches a specific position, with new traveller, then re-threading yarn
Inventor: KOGA TOSHIAKI
IPC: D01H17/02
Filed: 1992-09-14
Abstract: A process to change the travellers on a ring spinning frame may progress in stages or in one manoevre. When the yarn has been removed, the old traveller is brought to a certain position and removed. The new traveller is fixed in a certain position, and the yarn rethreaded. The travelling changing equipment is mounted on a trolley which runs along the front of the ring frame. It is necessary to locate the equipment alongside each of the series of spinning positions on the frame. This is achieved by locator wheels running along the ring rail to a position where the plate can locate the ring. Controls in the housing then actuate the arm to lift the yarn between the roller pair and the guide, in the gripper to retain a length of yarn. Then the lever in housing is lifted to lift the brake lever on the spindle. ADVANTAGE - The mechanical and automatic process reduces the manual and technical, time consuming and expensive attention required.
Patent DE-4231225-A1 (DE)
Title: Mobile plastic film shredder - has device to continuously press film against rotating blades
Inventor: TWACHTMANN HEINRICH
IPC: B29B9/04
Filed: 1992-09-18
Abstract: A film shredder has a pressure device which continuously presses the film to be cut against a driven cutter. A single drive can drive the pressure device and also the cutter so that it can rotate in either direction, or separate drives can be used. A moistened fabric ring can prevent the build-up of electrostatic charges. The pressure device is moved up and down by a rack and pinion arranged to remain out of contact with the material to be shredded. The upper and lower limits of the rack movement are determined by sensors. The cutting knives are mounted on a horizontal rotating cylinder. USE/ADVANTAGE - Compact, mobile shredder for dealing safely with large volumes of plastic sheet packing material used in horticulture
Patent DE-4235727-A1 (DE)
Title: Waterproof termination for electrical tube heater - has heat resistant insulating body around terminal, pressing against internal seal and crimped by outer tube
Inventor: NEUSER HORST
IPC: H05B3/48
Filed: 1992-10-23
Abstract: The termination for electrical tube heater, where a heating element is embedded in insulating material (3) within an outer tube (1) and connected to terminals (2), has an insulating body (6) held against the seal (5) under pressure. The end of the outer tube is tapered so as to grip the insulating body against the terminal. The insulating body is made from heat resistant plastic. The seal is made from elastic material. It is also both heat resistant and water resistant, eg made from silicon. ADVANTAGE - Design of termination is suitable for automatic (ie, machine-made) assembly process.