baber/WOPTO huggingface dataset:
Patent DE-3936429-A1 (DE)
Title: Sealing gap in pump or compressor - involves use of fibre materials to form flocculation zones
Inventor: ROHS ULRICH DR ING
IPC: F16J15/3288
Filed: 1989-11-02
Abstract: The fluid handling machine, e.g. a pump or compressor, has a rotating part and a further stationary or movable machine part. The surfaces define a sealing gap. One of the two surfaces defining the gap has a flexible seal (5,6,7 etc.) made with fibre materials and contained in individual flexible seal zones. USE/ADVANTAGE - Type of sealing which gives a pump or compressor a long life without efficiency losses.
Patent DE-3936794-A1 (DE)
Inventor: NACHTKAMP KLAUS DR
IPC: C09D175/04
Filed: 1989-11-04
Abstract: An aqueous coating composition which contains a water-dispersible binder, aluminium pigments and optionally further assistants and additives, where the binder or the principal component of the binder comprises a water-dispersible polyurethane polyurea containing (i) at least 200 milliequivalents, per 100 g of solids, of chemically incorporated carbonate groups and (ii) not more than, in total, 320 milliequivalents, per 100 g of solids, of chemically incorporated urethane groups and chemically incorporated urea groups, and the use of these water-dispersible polyurethane polyureas as binders or binder components for water-borne metallic base coats (paints).
Patent DE-3936863-A1 (DE)
IPC: F17C13/04
Filed: 1989-11-06
Abstract: A valve cartridge (4, 5, 6, 7) for cleaning dust filter installations by means of compressed air is incorporated in the compressed air container (1) in order to increase the flow rate.
Patent DE-3940531-A1 (DE)
Title: Information encoding into PWM half-period sequence
Inventor: DIRR JOSEF DIPL ING
IPC: H04L27/24
Filed: 1989-12-07
Abstract: The output from a pulse width modulator (PDM) is gated and reversed in polarity (G5,G1,G2) for driving a counter (Z), the number of whose outputs corresponds e.g. to the interval between two amplitude-modulated pulses of the information to be encoded.  The frequency range corresponds to the max. and min.  amplitudes (gw,kw). The serial code elements are rearranged in parallel and then combined into a single codeword fro transmission as a continuous sequence of half-periods of alternate polarity.  The sign of the polarity for the next half-period is held by an electronic relay (ER) by which the pulse duration (PD) and spacing (P) are determined.
Patent DE-3942521-A1 (DE)
Title: Emptying system for drum containing viscous liquid - has plunger exerting pressure on liquid and drum protected from damage by tape wound around drum whilst on rotary platform
Inventor: SCHNEIDER FRIEDHELM
IPC: B65B43/54
Filed: 1989-12-22
Abstract: The system has the drum or barrel (31) attached to a rotary platform (32) by suction acting at the space (33) between the bottom of the drum and the platform.  Alternatively the drum may be held to the platform by a magnetic force generated by a magnetic coil (43) inside the platform - which in this case is designed as a pot-shaped magnet. Alternatively the magnetic tone may be generated by a stationary electromagnet.  The platform is made of magnetic material.  The electromagnet's winding is supplied via a slip-ring. USE/ADVANTAGE - For emptying drums, barrels or vats contg. highly viscous liquid.  Drum is held to platform by means other than usual hinged clamps.
Patent DE-4008844-A1 (DE)
Title: Volumetric counter with oscillating annular piston - has electronic module with lock for each receiver to prevent pulse counting
Inventor: MOOSMANN ROLF
IPC: G01F15/06
Filed: 1990-03-20
Abstract: The counter housing (10) contains a rotor (13) with a magnetic exciter (14). A stator with a receiver (17) and an electronic module are provided (18) for pulse counting, as transmitted from the exciter, with the receiver located near the rotor periphery. The electronic module has a lock for the receiver to prevent the pulse counting. The pulses are generated in response to the magnetic exciter, when the pulses do not corresp. to a preset pulse  train. The housing, contg. the receiver, has a closure plate (15). The receiver is fitted in a blind bore (16) formed in the plate thickness dimension. USE - For liq. or gas vol. meters, e.g. for fuel consumption, with high precision and suppression of interference pulses.
Patent DE-4010359-A1 (DE)
Title: Conveyor system for objects of different sizes - with spool shifting ridges to adjust to carry any size of fragile objects on belt
IPC: H05K13/00
Filed: 1990-03-31
Abstract: The device for transporting sensitive or fragile objects comprises a conveyor belt (2) driven over rollers (1). At least two ridges (3,4) are braced to the conveyor belt (2) around the rollers. The ridges (3,4) rotate with the conveyor belt (2) in shaped blocks (5,6) which are positioned on a threaded spool (8), so that their relative positions can be altered. The spool may be a motor driven double spool with opposed windings. The ridges may be like fan belts. USE/ADVANTAGE - Simple construction, easily controllable. Especially for transporting two sided, layered, circuit boards through a drying furnace.
Patent DE-4010430-A1 (DE)
Title: Dyeing drum to ensure consistent contact between dyestuff and textile - has separate chambers supplied by dedicated distribution channels in the central feed tube to charge upper chamber
Inventor: SCHIRM GUENTER
IPC: D06B5/12
Filed: 1990-03-31
Abstract: The drum of the drum dyeing appts. is divided into separate chambers (5), with a dedicated distribution channel (13) in the feed tube (10) for each chamber (5). A distribution unit is at least at one end of the fed tube (10), to pass the dyestuff only into the distribution channel (13) for each upper drum chamber (5). The distribution channels (13) in the feed tube (10) are sepd. by dividing walls (12) as an extension to the walls (4) sepg. the drum chambers (5). Each distribution channel (13) extends as far as a journal at the end of the feed tube (10), where a radial entry opening and a supply chamber round the journal passes the dyestuff only to the channel in the upper position. Each drum chamber (5) has a peripheral wall (7) at the outer circumference (3) of the drum, with a loading opening (8) which can be closed by a perforated swing door (9). The tube wall (11) of the feed tube (10) has a number of outlet jets opening radially into the drum chamber (5) for the dyestuff to pass through. Deflection plates are near the perforation holes (14) at the feed tube (10) to give a radial deflection to the dyestuff flowing axially in the feed tube. ADVANTAGE - The system ensures a consistent and intensive movement contact between the dyestuff and the textile material, while retianing the advantages of a drum appts.
Patent DE-4014891-A1 (DE)
Inventor: VANCRAEYNEST YVES
IPC: E04C5/01
Filed: 1990-05-09
Abstract: The manufacture of bundles of steel wire pieces for the strengthening of building elements, comprises glueing together a number of stool wires into bundles, and then transversally cutting the bundle into short bundles. According to the invention the glue is applied in a molten state and is caused to solidify thereafter by cooling. This method allows an increase in production speed.
Patent DE-4015576-A1 (DE)
Title: Chamber length measurement device for workpieces - has measurement sensor and step edge adjustable w.r.t. each other by different chamber angles
Inventor: KAPPLER HANS-PETER
IPC: G01B5/00
Filed: 1990-05-15
Abstract: The arrangement for measuring the chamfer length of chamfered workpieces contains a support (2) for the workpiece (3) with a measurement sensor (6) connected to a distance transducer (4) and applied to one end of the workpiece. The sensor has a stop edge (7) for application to the chamfered surface (8). The length of the measurement sensor connected to the distance measurement device and/or the length of the stop edge can be adjusted wrt. each other to compensate for different chamfer angles. USE/ADVANTAGE - Esp. hand-held chamfer length measurement device is simple to operate and produces good measurement results at relatively low cost.
Patent DE-4016310-A1 (DE)
Inventor: SIEBENLIST BERND
IPC: C03B33/12
Filed: 1990-05-21
Abstract: The pincers (1) disclosed are designed particularly for severing tiles, glass, etc., and have two long handles (5), two short pincer arms (6) and, located at the end of each pincer arm (6), a pincer tool. For optimum pincer-tool design and ease of manufacture, the pincer tools consist of cutter wheels (7, 8) made preferably of hardmetal and fixed to the ends of the pincer arms (6). The cutter wheels (7, 8) are fixed with screws (11) and can be adjusted to any rotational position relative to the ends of the pincer arms (6).
Patent DE-4017162-A1 (DE)
Title: Ethanol based fuel additive for two=stroke engine - contg. n-heptane, water and lubricant, reducing emission of hydrocarbon(s), carbon mon:oxide, poly:cyclic and oxide(s) of nitrogen
Inventor: ZEPF WALTER
IPC: C10L10/00
Filed: 1990-05-28
Abstract: A fuel additive for 2-stroke engines contains (a) 55-90 vols.% of ethanol, (b) 5-10% of n-heptane, (c) up to 5% of water, and (d) 10-45% of a lubricant sol. in the additive and in the 2-stroke mixt. Pref. amts. are: (a) 65-75 vols.%, (b) 6-8%, (c) 1-4%, and (d) 20-25%. The water is introduced (partly) with the ethanol. The additive is used with opt. Pb-free normal gasoline, super or low-octane gasoline. The ratio of oil:fuel is 1:25-75 (1:40-50). ADVANTAGE - The additive reduces the emission of hydrocarbons, CO and carcinogenic polycyclics, and at least does not raise the emission of NOx.
Patent DE-4018064-A1 (DE)
Title: Toy revolver with spark trap - which is in form of ring fitted in end of munition drum
Inventor: MEIDENBAUER GEORG
IPC: F41C3/10
Filed: 1990-06-06
Abstract: The toy handgun is in the form of a revolver, and has a rotatable drum (3) which receives the ammunition. This drum is rotated by a drive connected to the trigger. so that each munition is in turn brought into line with the firing hammer. The drum is fitted with a spark trap in the form of a ring (21). This ring has a scalloped periphery to match the internal contour of the drum and has a ring of holes (22). When . the ring is inserted in the drum the outer face of the ring is set back from the front edge of the drum.
Patent DE-4021693-A1 (DE)
Title: Emergency OFF circuitry for transistor stage in emitter circuit - has output stage transistor collector coupled to cathode of thyristor formed by third and fourth transistors
Inventor: MICHEL HARTMUT DIPL ING
IPC: H03K17/0814
Filed: 1990-07-07
Abstract: The circuit uses a fuse wire between the emitter and earth, tripped by a thyristor igniting. A collector a first output stage transistor (T1) is coupled to a cathode (K) of a thyristor formed by a third (T3) and a fourth transistor (T4). The thyristor (T3,4) anode (A) is coupled to the positive terminal of a supply voltage (UB). The thyristor gate (6) is linked to a second transistor (T2) collector, the transistor comprising common emitter and base particles, but different collector particles with the output stage transistor. The thyristor anode adjacent pn-function, and its anode-gate path are bridged by resistors (R1,2) respectively. ADVANTAGE - No defective tripping on output stage transistor blocking.
Patent DE-4022989-A1 (DE)
Title: Mechanical securing catch for hooded headlamp of motor vehicle - has eccentric mounting for tightening and profiled locking surfaces
Inventor: SCHMETTE JOERG
IPC: E05C1/06
Filed: 1990-07-19
Abstract: The catch lever (6) is mounted on a cylindrical support (5) which is swivel-mounted on the housing via an eccentric stub (12). Rotating the cylinder moves the catch lever through eccentric displacement. The catch lever moves in a guide and has a toothed inner surface to grip a similar surface on the cylinder. The eccentric drive replaces the bulky dead point type of catch. The eccentric components are moulded and are simple to assemble. The locking action can also be provided by a tag on the stub running over a raised cam. ADVANTAGE - Compact, simple construction of few components.
Patent DE-4023727-A1 (DE)
Title: Camshaft drive chain hydraulic tensioner and adjuster oil
Inventor: TRZMIEL ALFRED DIPL ING
IPC: F01L1/348
Filed: 1990-07-26
Abstract: The hydraulic system tensions and adjusts the camshaft drive chain. The relative angular positions of the two camshafts are altered by a ram moving the tensioning mechanism at right angles to the chain, lengthening the return run and shortening the working one or vice versa.  Engine oil is used as the hydraulic fluid, its pressure increasing with the engine speed. The pressure is pref. used to act directly on the spring-loaded ram piston (8), displacing it against the spring force.
Patent DE-4026368-A1 (DE)
Title: Method of successive excavation of tunnel - involves cladding face of new excavation and supporting face with gap between them
Inventor: MESSLER PETER DIPL ING
IPC: E21D9/04
Filed: 1990-08-21
Abstract: Successive excavation of a tunnel involves supporting the face (22) with horizontal baulks (24) with props (18) immediately behind them. Between the prop (18) and cladding elements (10) which support the face of previously excavated tunnel, is a gap (34) which allows cladding elements (20) to be driven into the working face (22). A temporary layer of concrete (32) is wedged between cladding elements (10) of the previously excavated tunnel section and the baulks (24) before the succeeding cladding elements (20) are driven. The gap between the two sets of cladding (10,20) is then filled with concrete (36) against the first wedge of concrete (32). USE/ADVANTAGE - The tunnel face is reliably supported before and during the successive operations.
Patent DE-4026682-A1 (DE)
Title: Analogue normalising circuit - carries out logarithmic and hyperbolic functions of two signals
Inventor: LOGE HANS DIPL ING
IPC: G06G7/24
Filed: 1990-08-23
Abstract: An analogue electronic circuit carries out a normalising operation on two analogue measurement signals. The circuit provides an output x = A-B/A+B = Tanh (lnA-lnB), where A and B are the signals and are greater than zero. The logarithmic values are each generated by operational amplifier circuits that has feedback including a switched transistor. The voltages provided by two such circuits are received by a hyperbolic tangent generating circuit having an operational amplifier (OP3) and a pair of transistors (TR3, TR4). ADVANTAGE - Provides means of accurate calibration of signals.
Patent DE-4027200-A1 (DE)
Title: Arrangement for measuring position of moving body - has measurement body moving between short circuit tube and body of main magnetic circuit
Inventor: PAUL BERNT DIPL PHYS DR
IPC: F15B15/28
Filed: 1990-08-28
Abstract: An arrangement for measuring the position of a moving body has a radially magnetised ring magnet with magnetic flux  divided between a main magnetic circuit (10) and a reference circuit (8), each of which contains a magnetic field detector (15,14). The main circuit contains a short-circuit tube (24) of weakly magnetic material concentrically enclosing a cylindrical short-circuit body (24) with an intervening annular air gap (28) whose size varies with movement of a measurement body (26). USE/ADVANTAGE - Esp. for measuring position of piston in a hydraulic cylinder for mining applications.  Continuous direct measurement is achieved.
Patent DE-4028771-A1 (DE)
Title: Stripping membrane coverings from parasites by shear force - developed during turbulent flow in restricted bore
Inventor: SOBOLEWSKI BERT
IPC: C12M3/08
Filed: 1990-09-11
Abstract: Parasites, organelles, or the like are sepd. from their surrounding biological membranes, pref. after preliminary lysis in a soln., when the soln. undergoes turbulent flow, applying shear stresses which strip away the membrane. The soln. may be pressure-fed into a bore into a plastic block. discharging into a container from which the mixt. of parasites and membrane portions is removed for sepn. Added detachment action is provided if the moving stream impinges on a battle surface before discharge.
Patent DE-4034336-A1 (DE)
Title: Halogen-free, fire-resistant poly:carbonate moulding materials - contain poly:carbonate, graft copolymer, styrene] copolymer, organic phosphate and fluoroalkane-sulphonic or -carboxylic acid deriv.
Inventor: NEUMANN RAINER DR
IPC: C08K5/521
Filed: 1990-10-29
Abstract: Chlorine- and bromine-free, fire-resistant thermoplastic moulding materials (I) are claimed, contg. (A) 40-85.99 wt.% halogen-free polycarbonate, (B) 5-25 wt.% halogen-free graft copolymer, (C) 5-40 wt.% halogen-free thermoplastic copolymer, (D) 4-20 wt.% halogen-free phosphorus cpd(s). of formula (II), (E) 0.01-5 wt.% perfluoro- or polyfluoroalkane-sulphonic acid or -carboxylic acid deriv. of formula (F-(CF2CF2)x-(CH2CH2)y-X)mM (III) and (F) 0-50 wt.% fibrous and/or particulate fillers; (B) consists of (B1) 40-80 wt.% rubber polymer base with Tg below 0 deg.C grafted with (B2) 20-60 wt.% copolymer of (B2.1) 50-95 wt.% opt. substd. styrene of formula (IV) and/or MMA and (B2.2) 5-50 wt.% (meth)acrylonitrile, MMA and/or maleic anhydride; (C) is a copolymer of (C1) 50-95 wt.% monomer of type (B2.1) and (C2) 5-50 wt.% monomer of type (B2.2); (I) contain no PTFE. R = H or 1-8C alkyl; R1 = 1-8C alkyl; R2-R4 = 1-8C alkyl or 6-20C aryl, opt. substd. with 1-2 1-4C alkyl gps. n = 0, 1, 2 or 3; X = -SO3 or -COO; M = H, alkali or alkaline earth metal; x = 1-6; y = 0 or 1; m = valency of M. Also claimed is a process for the prodn. of (I), in which component (E) is used in the prodn. of (B) in emulsion, pref. by adding (E) to an aq. dispersion of (B), precipitating the mxit., removing water and drying, and then adding the other components. Amts. are 50-85 wt.% (A), 5-25 wt.% (B), 5-40 wt.% (C), 4-15 wt.% (D), 0.01-2 wt.% (E) and 0.05-30 wt.% (F); (B1) is a crosslinked butadiene polymer or a copolymer of (B1.1) 70-99.9 wt.% (1-8C alkyl) acrylate(s), (B1.2) 0-30 wt.% mono-unsatd. comonomer(s) and (B1.3) 0.1-5 wt.% polyfunctional crosslinking comonomer, in which case (B) consist of 30-70 wt.% coarse graft copolymer with d5o 200-700 nm and 70-30 wt.% fine graft copolymer with d5o 50-180 nm. USE/ADVANTAGE - (I) are useful for the prodn. of fibres, film and mouldings (claimed); also claimed are moulded prods. obtd. from (I). The invention provides halogen-free polycarbonate moulding materials with good fire resistance and high multiaxial impact strength at low temp.
Patent DE-4034621-A1 (DE)
Title: Serial clamp terminal carrier for switch - has support mounting at each end of transverse carrier beam allowing angular adjustment
Inventor: SAUER WOLFGANG
IPC: H01R9/24
Filed: 1990-10-31
Abstract: The terminal carrier comprises a transverse beam (1) supported between 2 mountings (2) at its opposite ends, which allow the beam (1) to pivot between a number of alternate positions. Pref. the beam (1) has a pivot pin and a cam wheel (5) at each end cooperating with a seating provided by each mounting (2), to lock the beam (1) in a required annular position. Each cam wheel (5) pref. fits within 2 diametrically opposing curved seating sections, exhibiting a complementary cam profile. ADVANTAGE - Simple assembly.
Patent DE-4038402-A1 (DE)
Title: Device for sealing expansion seam between metal plates - has sealing strip and longitudinally running U-profiled pressure profiles
Inventor: RENTE JOST
IPC: B09B1/00
Filed: 1990-12-01
Abstract: The pressure profiles (14,15) are welded with a first U-arm (14,15) to the metal plates (3,4), and press with the other, second deformable U-arms (27,28) for sealing the sealing strip (7). The first U-arm is pref. tightly welded on the inside (10,12) along its length, whilst on the other side is spot-welded. A folding bellows plate located beneath the sealing stip (7) covers the expansion joint (5) and the edge areas of the metal plates (3,4), and is tightly welded to the upper sides of the plates (3,4). The transition from the first (25,26) to the second (27,28) U-arms presents a rounded formation, and the material thickness of the first and second U-arms is reduced in the region of this formation. USE - To seal expansion joints between metal plates in building construction.
Patent DE-4039308-A1 (DE)
Title: Poly:isocyanate-based foam prodn. - by reaction of poly:isocyanate(s) with poly:ol(s) etc., using 4-6 carbon fluoroalkane as part of blowing agent
Inventor: BEHME KLAUS-JUERGEN DIPL ING
IPC: C08J9/14
Filed: 1990-12-07
Abstract: Prodn of polyisocyanate-based foams (I) is effected by reaction of polyisocyanates, cpds with at least 2 reactive H atoms, blowing agents and opt other additives; the novelty is that at least 10 mol% of the blowing agent consists of fluoroalkane(s) of formula CaHbFc (II) (with a = 4-6; b = 1-12; c = 2-13). At least 20 (pref 50-80) mol% of the blowing agent consists of (II), at least part (pref all) of the remainder being the C02 produced by addn of water to the reaction mixt; one or more cpds (II) are used, with a, b and c as above, pref with a = 4-6, b = 1-5 and c = 5-13. USE/ADVANTAGE - The process is useful esp for the prodn of rigid PU and polyisocyanurate foam. (II) are more environmentally acceptable than CFC blowing agents, and give foam with considerably lower thermal conductivity than that of foam produced with C02 alone (even when the proportion of (II) is relatively low).
Patent DE-4039713-A1 (DE)
Title: Room light fitting suspension with variable lamp height - has manual or electric drive for winding light suspension up or down to enable maintenance or repair
Inventor: NATHANAEL HARTMUT
IPC: F21V21/16
Filed: 1990-12-13
Abstract: A drive operates a winding system, for winding the light fitting suspension up and off to raise and lower the single light or strip lighting. The drive is designed manually, with an electric motor or electronically, corresp. to the application. An automatic holding system is connected to the drive. A pulley system is incorporated, which stores the adjustable length of the suspension element. A unit is arranged between the drive and the light fitting, which by translation facilitates the required height setting. With manual adjustment of the light fitting height, a crank drive with self locking spindle drive is used. USE/ADVANTAGE - Light fitting suspension which can be altered in height for installation and/or subsequent service and possible replacement of light fitting or bulb. Lowers cost of service and repair, with service units no longer required. Expert personnel not required and storage room saved.
Patent DE-4041228-A1 (DE)
Title: Cellulose board formed into laminated absorbent hygiene prod. - is first treated with aq. soln. of known super-absorber
Inventor: MALCOMESS HANS-JUERGEN DR ING
IPC: A61F13/00
Filed: 1990-12-18
Abstract: A hygienic prod. e.g. sanitary towel, baby's napkin is made  by mechanically breaking down a continuous band of cellulose board into flakes and continuing these flakes into a fluffy web which is laminated with a band of clothing protection material before the assembly is enclosed by cellulose fabric and fleecy material. To increase absorption in the final prod., the initial band of cellulose board is given a coating of an aq. suspension of super-absorbent material of known type, e.g. sodium cellulose acetate sulphate, applied by spraying or spreading. Normal stages such as adhesive appln., trimming to length and stamping are unaffected. ADVANTAGE - With super-absorber applied as a preliminary step, there is no subsequent time lost in drying and process speed is maintained.