baber/WOPTO huggingface dataset:
Patent DE-3917354-A1 (DE)
Title: Rim profile and blind frame extrusion - for easy joint to plastic foil webs and other fixtures
Inventor: NINTEMANN ANTON
IPC: E06B3/00
Filed: 1989-05-29
Abstract: A new extruded rim profile has been devised for a blind frame (10) with inside and outside shells carrying functional grooves. The grooves (1-4) can be used to join webs of EPDM foils by folding the selvedge over a core and pushing it into the groove with a snap fit. Other grooves (5-8) can be used similarly for other fixtures. Two insulating strips (12) keep the two profiles (15) apart. ADVANTAGE - This permits various fixtures to be connected with ease.
Patent DE-3926219-A1 (DE)
Title: Towel loom having adjustable towel weave - consisting of crank drive with adjustable cross-coupling of arms of different length
Inventor: STOERR HARALD ING GRAD
IPC: D03D39/22
Filed: 1989-08-08
Abstract: On a towel loom there is an adjustable double beat-up motion for the reed, which has a crank drive, with adjustable cross coupling to arms of different lengths, where the input shaft is at a different level, but parallel to the output shaft. The input drive shaft is coupled to the bar which has a lengthwise slot, in which a crosspiece allows movement of the bar in direction of the arrows, representing beat-up of the slay. ADVANTAGE - The loop for the towel weave is adjustable. A complicated and heavy slay is not necessary, with corresponding power economy. The equipment is durable and easily serviced.
Patent DE-3936179-A1 (DE)
Inventor: DIECKMAENNKEN FRANZ DIPL ING
IPC: H04N7/087
Filed: 1989-10-31
Abstract: Being discussed at present is the so-called "letter-box" method for the insertion of a 16:9 wide-picture format into existing standard systems (e.g. PAL, SECAM, NTSC) in 4:3 format. Format information is transmitted as auxiliary data in the so-called ultra-black region. The invention calls for an increase in black level to be inserted in the composite video signal (FBAS). This shifts the clamping reference value, thus shifting the black level. The additional information in the ultra-black region thus created can be transmitted at a high signal level.
Patent DE-3937834-A1 (DE)
Title: Backlash-free high-ratio reduction drive - has worm gear output stage preceded by one with belt drive
Inventor: ORLOWSKI BERNHARD
IPC: F16H37/02
Filed: 1989-11-14
Abstract: The high-ratio reduction drive has several stages, the output one comprising a worm (5) driven output shaft (3), while the preceding stage consists of a belt drive (1). The belt is pref. toothed, and the tooth thickness of the worm can increase continuously in the axial direction. On wear of the intermeshing teeth, it can be slid axially, to bring a  thicker portion into engagement with the worm  wheel (4). USE/ADVANTAGE - For positioning drives etc., with high precision operation.
Patent DE-4009094-A1 (DE)
Title: Time-delayed fault current isolator with electronic switch - incorporates thyristor for delayed shorting of output from DC supply circuit to polarised holding magnet trip
Inventor: WENGER DOMINIQUE
IPC: H02H3/33
Filed: 1990-03-21
Abstract: A holding magnet trip device (22) is connected by a capacitor (34) to the sec. winding (28) of a summation current transformer (24). A DC supply circuit (40) is connected to two main lines (P1, N1) for excitation of the trip device (22) by DC in the same direction through diodes (46, 48). A tert. winding (60) feeds an amplifier (54) associated with an electronic delay (56) in application of a short-circuit (50) to the output terminals.
Patent DE-4015984-A1 (DE)
Title: Eccentrically controlled rotary piston pump - uses eccentric spindle to control piston movement also suction and compression operations
Inventor: SCHAEDLER AXEL
IPC: F04C2/22
Filed: 1990-05-18
Abstract: The rotary pump incorporates an eccentrically mounted trachoidal p;iston (1). This rotates inside a double lobed chamber (8). These are projections on the eccentric spindle, controlling the movement of the piston and also controlling the suction and compression operations. Two opposed projections travel past three equally spaced inlet and outlet openings. USE/ADVANTAGE - Simple design of rotary pump with double lobed housing and trachoidal rotor.
Patent DE-4022815-A1 (DE)
Title: Topical preparation contg. omega-3-fatty acids - for prophylaxis and treatment of skin inflammation e.g. eczema, burns, acene, contact allergies etc.
Inventor: BOLL MICHAEL DIPL CHEM DR
IPC: A61K31/20
Filed: 1990-07-18
Abstract: The use of topical prepns. (A) contg. omega-3-fatty acids (I) or esters or salts for the prophylaxis and treatment of acute and chronic inflammatory skin disorders is new. (A) contain 0.2-25 wt. % of (I) as such or as a component of fish oils and can opt. contain an additional fat e.g. a medium contg. triglyceride. Pref. eicosapentaenoic acid (EPA) is used. USE/ADVANTAGE - (A) are used esp. against burns, neurodermatological conditions, e.g. allergic and endogenous eczema, acne, keloids, contractures, ulcerations, decubital ulcers, toxic degenerative eczemas and contact allergies. They are pref. applied as pharmaceutical or cosmetic prepns. esp. as lotions, creams, gels, solns. salves or on gauze or plaster. Treatment with (A) brings about rapid healing and is not accompanied by side effects as occur e.g. during corticosteroid therapy. Further, (A) avoid the unfavourable cost/benefit ratio and the side effects, e.g. increased blood coagulation time of enteral and parenteral preparations known e.g. from EP311091.
Patent DE-4025699-A1 (DE)
Title: Accumulator with acidic and alkaline electrolytes - uses selected semipermeable membrane materials to exclude alkali anions from positive, and acid cations from negative electrode
Inventor: VASSIL EV SERGUEIVLADIMIRIROVI
IPC: H01M2/16
Filed: 1990-08-14
Abstract: Individual cells with their positive electrodes (3) connected together and their negative electrodes (4) connected together by conductors (5) are wired in series (6). The groups of electrodes are separated by semipermeable membranes (8, 10) and surrounded by acidic and alkaline solns. of e.g. HF (7) and LiOH (9) from which salts (e.g. LiF) are formed by ion recombination in the inter membrane spaces (11). - In an alternative emobidiment the two membranes are replaced by a single H2-permeable membrane mfd. of Mn-Ni-Zr alloy.
Patent DE-4026528-A1 (DE)
Title: Method of securing rock face - involves insertion of concrete wedge and subsequent filling by sections with concrete plugs on either side
Inventor: HOLZER HORST
IPC: E02D3/00
Filed: 1990-08-22
Abstract: A method of securing the face when cracks in the overburden rock suddenly appear following the winning of coal or other minerals. The original rock stress capability is restored by building in a temporary wedge of concrete to the top five to six metres, and thereafter by filling in sections one step at a time. Concrete plugs are inserted left and right to secure especially threatened areas such as housing, roads or services. USE/ADVANTAGE - Dangerous areas are limited and relatively quickly secured.
Patent DE-4028891-A1 (DE)
Title: Appts. providing samples with required temp.-time profile -  has closed air circuit contg. heating and cooling elements, and change from heating to cooling is effected by slide valve
Inventor: LIEBISCH SIEGFRIED
IPC: B01L7/00
Filed: 1990-09-12
Abstract: Device has a closed air circuit in which the sample holder support (4) and the sample holder (5) are located in a zone (3) of equally distributed air flow. Upstream of this zone are a heater (7), and air mixing zone (6). Upstream of these are a warm air duct (21) and a duct (19) for air coming from the air cooler (17,18). These two ducts may be wholly or partly separated from each other. The outlet of the mixing zone (6) lies below the sample support (5). The zone (3) contains curved pivoted vanes (9) which direct the air flow onto the top surface of the sample holder. The heater is located in the mixing zone near its junction with the sample zone (3). The air moving element (24) is located in the mixing zone. The device has a cylindrical housing (1) with a spherical roof (2) which form the return duct for the closed air circuit. The internal air passages are formed by concentric cylindrical ducts (10,11). The inlets to these ducts can be closed off from each other by a valve, and their upper communicating openings (20) can also be closed. USE/ADVANTAGE - Used in the handling of test samples requiring a certain temp./time profile, e.g. in the enzymatic reproduction of specific DNA sequences. The required temp. profile is provided in a homogenous and reliable manner even when temp. changes of great rapidity are required.
Patent DE-4030068-A1 (DE)
Title: Optical information coupling to amplifier -  using coupling medium having higher refractive index than optical fibre, or optical fibre doped with rare earth element
Inventor: ALTMANN KONRAD DIPL PHYS DR
IPC: H01S3/067
Filed: 1990-09-22
Abstract: Part of the optical information is fed along an optical fibre (10) to a semiconductor amplifier (11) or a fibre amplifier using an output coupling medium (13) with a higher refractive index than the optical fibre, or using a further optical fibre respectively. - Pref. the semiconductor amplifier (11) is coupled to the optical fibre (10) by removing the optical fibre outer mantle (13) at a depried point and by insertion of the coupling medium (12), e.g. an epoxide which is hardened by UV light.
Patent DE-4103540-A1 (DE)
Title: Producing profiled fusible e.g. PTFE tapes - by subjecting flat paste extruded sheet to machine with transverse series of profiled cutting rollers on top and plain roller beneath
Inventor: EILENTROPP HEINZ
IPC: B29C48/35
Filed: 1991-02-06
Abstract: A banding tape of non-rectangular cross-section is produced from a high temp.-resistant fusible plastic material, and from fluoropolymer such as PTFE in particular, by paste-extruding the polymer and rolling out the extrusion into a strip. The strip width is at least double that required in the banding tape; it is then cut longitudinally by a pressure cutter so that the cut edges are made with a permanent taper. ADVANTAGE - The procedure produces banding tapes with non-rectangular profile in a reliable and inexpensive manner.
Patent DE-4105674-A1 (DE)
Title: Roller cleaner - has open-pored fibre material round a hollow body charged with a cleaning fluid, used in e.g. calenders, polishers
Inventor: SCHMID OTTO E DIPL ING
IPC: B21B28/04
Filed: 1991-02-22
Abstract: The roller cleaner (6) is a hollow body (14) with an open-pored fibre material (16) on the outer side, at least where in contact with the roller (2) being cleaned. The side of the fibre material (16) away from the roller (2) being cleaned is charged with a cleaning fluid, at least at times. USE/ADVANTAGE - The cleaner assembly is for rollers used in calenders, polishers, to support cladding and coating rollers, glue presses and the like. The cleaning roller has the dual action of dissolving matter adhering to the roller and drawing it through the fibre material.
Patent DE-4107242-A1 (DE)
Inventor: ORTH WINFRIED DR
IPC: C07C39/17
Filed: 1991-03-07
Abstract: The invention relates to an improved process for the preparation of 9,9-bis-(4-hydroxyphenyl)fluorene by condensation of phenol and fluorenone and to the subsequent process for isolating the pure product.
Patent DE-4112064-A1 (DE)
Title: Contactless inductive energy transfer system
Inventor: HIRRLINGER KLAUS
IPC: G08B13/04
Filed: 1991-04-12
Abstract: The energy transfer system allows supply energy and signals to be transferred from a primary circuit to a secondary circuit, using a bandpass filter (1) which is periodically short-circuited on the secondary side. Pref. the periodic short-circuiting of the bandpass filter is effected at a clock frquency which is less thant he transfer frequency, with an unsymmetrical pulse ratio.  Pref. the primary circuit (3) of the bandpass filter (1) is pref. coupled to an oscillator (9), the short-circuiting of the bandpass filter (1) effected via modulator.
Patent DE-4112933-A1 (DE)
Title: Inhibiting microbial leaching of metal sulphide(s) - by treatment with microbicide, used for inhibiting leaching of heavy metals or radioactive metals from waste tips in e.g. mining industry, etc.
Inventor: GLOMBITZA FRANZ DR
IPC: A01N59/10
Filed: 1991-04-17
Abstract: Microbial leaching is inhibited by treating the material with a biocide or microbial growth inhibitor. The biocide is a substance toxic to Thiobacillus spp., esp. a paraffin sulphonate or an inorganic fluoride. In the latter case, a barrier layer of carbonates or hydroxides is used to prevent leaching of F ions. USE/ADVANTAGE - The process may be used to inhibit leaching of heavy metals or radioactive metals from waste tips in the mining, metallurgical or chemical industries. In an example, application of a technical fluorspar soln. (500mg/l F) to a mine spoil heap reduced the U leaching rate from 0.45 to 0 kg/day and the Fe leaching rate from 28 to 0 kg/day.
Patent DE-4114426-A1 (DE)
Title: Moisture application to surface of printing plate cylinder - by devices which control quantity of moisture being sprayed
Inventor: SCHNEIDER BERNHARDT DR ING
IPC: B41F7/36
Filed: 1991-05-03
Abstract: The offset printing machine has a printing plate cylinder (1) which is supplied with ink by ink applying rollers (2,3,4,5). The ink is moistened by spraying water onto the plate cylinder in at least two places. The water is sprayed by devices (14, 15,16) which are positioned between the ink applying rollers and which control the quantity of water being sprayed. Instead of the water being sprayed directly on to the plate cylinder it may be sprayed on to moisture applying rollers which then transfer the water to the plate cylinder. USE/ADVANTAGE - Application of moisture to a printing plate cylinder with accurate control of quantity of water supplied.
Patent DE-4116609-A1 (DE)
Inventor: BALLEWSKI HEINRICH DIPL ING
IPC: B22C1/16
Filed: 1991-05-22
Abstract: The invention relates to a process for producing ceramic chills as casting moulds in which: a) a fusible or removable pattern of a part to be cast is made; b) the pattern is immersed in a dipping consisting of a slurry of a fireproof material and a binder containing a colloidal, aqueous silica sol and polymers in order to form a damp coating on the pattern; c) a coarse, fireproof powder is sprinkled thereon; d) the coating is dried; e) steps b), c) and d) are repeated until the chill is of the desired thickness. To produce fast-drying dip coatings with a drying time comparable to that of chills made on the basis of alcoholic binders, the dipping compound contains a dispersion of aqueous colloidal silica sol as a binder to which are added synthetic high polymers and/or an emulsion from the group of silicon-organic compounds to give a coating which, after drying, is waterproof but water-vapour-permeable.
Patent DE-4120582-A1 (DE)
Inventor: HESSE WOLFGANG DR
IPC: C08L99/00
Filed: 1991-06-21
Abstract: The preparation of binder resins having improved flow properties in the production of curable fibre composites from natural or synthetic fibre materials based on thermocurable novolaks which contain crosslinking agents, but virtually no free monocyclic phenols involves admixing the novolaks in the melt with polyglycols and/or polycarboxylic acids or anhydrides thereof and/or acidic esters made from polyglycols and polycarboxylic acids, preferably in total amounts of up to 20% by weight, cooling the mixture to room temperature, powdering the mixture and mixing the mixture intimately with the required amount of pulverulent crosslinking agent.
Patent DE-4122558-A1 (DE)
Inventor: BRUMME RUEDIGER
IPC: B64D17/72
Filed: 1991-07-08
Abstract: The parachute proposed has a chute-opening device in the form of a tubular hose extending along at least one edge or seam of the parachute and inflated by compressed air. In order to improve the opening behaviour of the parachute, while at the same time ensuring high reliability, the invention calls for the hose or a section of the hose (4 or 4') to be made of polyurethanes produced using polyethers.
Patent DE-4128368-A1 (DE)
Title: Rechargeable battery powered pocket torch - has movable cover displayed to allow plug element to engage supply with block preventing engagement if cover is open
Inventor: HOCHE GUENTER
IPC: H02J7/00
Filed: 1991-08-27
Abstract: A pocket torch unit is powered by sec. cell batteries (3) enclosed in a housing having a clip (13) for retention in the pocket of a coat. The lower section has a standard plug unit (4) that can be released from the housing when a top cover (2) is swung clear. In normal use the cover encloses the plug element and the complete assembly is in the form of a flat pack. For charging, the cover is moved to an extended position (W). ADVANTAGE - Prevents contact with live parts during charging.
Patent DE-4128670-A1 (DE)
Title: Method for fluid atomisation - has parallel courses for working fluid and atomisation fluids, at constant speed, until atomisation
Inventor: BUERGER MANFRED DIPL PHYS
IPC: B05B7/16
Filed: 1991-08-29
Abstract: The method is for atomization of a continuously flowing working fluid, using a flowing gaseous or liquid atomizer fluid. The working fluid (12) and atomizer fluid (20,40) are brought into contact in an atomization zone (14), while executing a relative movement. Both fluids are moved parallel to each other, along an atomization path (22), until the working fluid is completely atomized. The path extends within the atomization zone, in direction of flow. The relative speed of the two fluids, in the area of their contact zone is maintained. ADVANTAGE - Simple and reproducible setting of degree of atomization and particle size.
Patent DE-4129751-A1 (DE)
Title: Visibility improving equipment esp. in motor vehicle - contains optical illumination system operating during successive intervals and receiver system acquiring images of illuminated region during and between illumination intervals for
Inventor: WEIDEL EDGAR DIPL PHYS
IPC: G01S17/88
Filed: 1991-09-09
Abstract: An optical system illuminates a spatial angular region during recurring illumination intervals. An optical receiver system acquires an image of the illuminated region. The receiver system acquires images during and between the illumination intervals. The images acquired during at least one illumination interval and one intervening interval are combined either in the optical receiver system or in an image processing device. ADVANTAGE -Reduces effect of stray light.
Patent DE-4135973-A1 (DE)
Title: Protective disposable glove for public places - has grip part impregnated with damp and germ repellent substance, and slit opening with adhesive paper strips
IPC: A41D19/00
Filed: 1991-10-31
Abstract: The protective, disposable glove is made of particularly tear-resistant paper. The grip-part of the glove is impregnated with damp and germ-repellent substance. The finger-tip parts of the glove have no perforations which the finger-nails might penetrate. Both sides of the slit opening have paper strips. Near the wrist opening is a small paper strip with adhesive action. Both sides of the slit have a suitable adhesive coating so that they can overlap and stick to the wearer. USE/ADVANTAGE - The protective glove is for wearing in public transport and other busy public places, and protects the hand from touching door-handles, bannisters, bars etc.
Patent DE-4139533-A1 (DE)
Title: Manually controllable wheelchair for handicapped persons - has electrical steering brake drive for at least one axle and control switch for switching from middle position to forwards or backwards and left or right
Inventor: KERCMAR IVAN
IPC: A61G5/10
Filed: 1991-11-30
Abstract: The handgrip for additional manual manoeuvring of the wheelchair is movable (26,28) and held by springs (60,62) in a middle position. It is connected with at least one control switch (24), the connection being such that a movement of the grip affects a like travel position in the control switch (24). It is also telescopically displaceable on the vehicle frame. The handgrip has two parts (26,28) connected to each other by a crossbar (46) which in its middle carries a steering lever (48) connected to the control switch (24). The crossbar is connected with the two grip parts via links (42,44). USE/ADVANTAGE - To improve the manoeuvrability of an electrically propelled wheelchair.
Patent DE-4139860-A1 (DE)
Title: Drying device for electronic components e.g. multilayer capacitors - uses container with mesh base lying in hot air circulation path
Inventor: OKANE MASAAKI
IPC: F26B21/02
Filed: 1991-12-03
Abstract: The drying device has a container (15) holding a number of electronic components (16) through which hot air is passed, the base (17) of the container (15) provided by a mesh for passage of the drying air. The air circulation is facilitated by suction or pressure. Pref. the container (15) is placed in a closed housing (12) connected in a closed circulation path with a suction device (19), a dehumdifier (20), a heating device (21) and an air filter (22). USE - For drying multi-layer capacitors.
Patent DE-4142486-A1 (DE)
Title: Rubber conveyor belt with non-central drive
Inventor: KETTERER JAN
IPC: B65G15/60
Filed: 1991-12-20
Abstract: The curve-going belt is esp. for use in underground mining and tunnel construction. It is driven by non-central drive units, located in a frame carrying the roller blocks. The relatively pivoted drive rollers of the units engage in a T-shaped guide bar under the belt. The belt (9) and the guide bar (14) consist of elastic, pref. hightly-elastic rubber (15). The roller blocks (16) supporting the belt, each include a central roller (18) with a recess. The deflection rollers have a recess, corresponding to the central rollers.
Patent DE-4142587-A1 (DE)
Title: Auxiliary frame for vehicle front suspension - makes use of three-cornered cross-member displaceable in relation to bearing bolt
Inventor: SCHRIMPF HOLGER
IPC: B60G3/06
Filed: 1991-12-21
Abstract: The auxiliary frame (1) is for a vehicle suspension with a displaceably attached three-cornered cross member (2) for the front wheels (5) having leading bearings (3) spaced from rear bearings (4) with elastic bearings element (42). The rear bearings are so formed and dimensioned that the three cornered components are displaceable in relation to the rear bearing bolts (41) which are rigidly attached to the auxiliary frame and/or the vehicle bodywork. USE/ADVNATAGE - Method of improving the deformation behaviour of the front section of a vehicle structure without adversely affecting the running dynamics.
Patent DE-4202357-A1 (DE)
Inventor: ZUR STEEGE WOLFGANG
IPC: F16K1/44
Filed: 1992-01-29
Abstract: The valve has a butterfly (2) which is arranged in a housing (1) such that it can rotate and is fastened to a hub (3) arranged in its plane. The said hub serves to accommodate a shaft (4) pushed through a housing opening (5). The said opening forms the outlet of a sealing-air chamber (8) surrounding the shaft. The housing has two stop strips (6) which each extend around one half of the butterfly and are provided with a sealing-air duct (7). A sealing-air bore (9) passes through the shaft (4), opens into the interior of the hub (3) and conveys sealing air into the gap between the shaft and the hub. In addition, the sealing-air bore supplies two sealing-air guides (14) which blow sealing air against the edges (13) of the butterfly (2), which extend as far as the shaft. All of the crossing points at which the possibly poisonous medium could pass from one side of the butterfly to the other are thus shielded by sealing air. <IMAGE>