baber/WOPTO huggingface dataset:
Patent DE-4005996-A1 (DE)
Title: Joint on printing roller - uses undercut groove on bearing pin with shaped edge on tubular roller fitting into it
Inventor: KOPPERS MANFRED DIPL ING
IPC: B23P11/00
Filed: 1990-02-26
Abstract: The roller body, partic. for the printing industry, comprises a tube and two face-side bearing pins. The bearing pins (3) of the roller body contain transformation chambers (UK), and the face side (RS) of the tube has shaping formations (AF), which after coaxial joining of the tube (2) with the bearing pins (3) provide a satisfactory union. Between the bearing pins and the tube in the joint area is a press fitting excess height (PUM) between the tube inner dia. (DIR) and the bearing pin dia. (DZ). Over the tube outer surface in the joint area, the tube receives a radial distortion in relation to the roller body axis.
Patent DE-4010662-A1 (DE)
Inventor: NOE OSKAR DIPL ING
IPC: B21B31/32
Filed: 1990-04-03
Abstract: The invention relates to a screwdown device for adjusting the roll gap or rolling force in rolling stands. The screwdown device has two hydraulic screwdown cylinders (2) which act on both sides of a work roll (5) to be adjusted. The screwdown cylinders each have two or more piston faces, which can be supplied with pressure medium independently of one another, either individually, in any desired combination or all together. It is thereby possible to improve the control of the rolling force in the respective range in such a way that percentage fluctuations in the rolling force are minimised and, as a consequence, variations in the roughness and wall thickness are reduced to a non prejudicial level. 
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Patent DE-4012072-A1 (DE)
Title: Pliers guiding screws into position - can then tighten screws, using jaws pivoting on balls
Inventor: HABELE MICHAEL DIPL ING
IPC: B25B23/04
Filed: 1990-04-14
Abstract: The pliers are used for the automatic guidance tightening of screws. The pliers have two jaws (25, 26) with concave surfaces which grip a tubular housing which guides the screws. The two jaws (25, 26) pivot relative to each other pairs of balls (54b, 55b) which are retained in recesses in the jaws and when the jaws are in the closed position the jaws abut against each other. The jaws are connected to each other by a mechanism which, when either jaw moves towards the open position the other jaw moves over the same distance in the opposite direction. USE - Fitting and tightening screws.
Patent DE-4014802-A1 (DE)
Title: Ceiling lamp with ring in axially movable housing - for assembly with ring and retaining springs inserted into opening and checked for correctness of seating
IPC: F21V21/04
Filed: 1990-05-09
Abstract: Functional electric components and a reflector (2) are fitted into a cylindrical housing (1) with the ring (4) consisting of a cylindrical body (6) and a flange (7) held in position by bars (9) in diametrically opposed guides. The ring (4) is assembled to a unit with retaining springs (5) which grip parts of the ceiling. In the correct position of the ring (4), the housing (1) can be moved axially until the edge (13) of a flange lies against the flange (7) of the ring. ADVANTAGE - Mfg. cost reduced, assembly facilitated and lamp is easily accessible for repair and maintenance.
Patent DE-4015530-A1 (DE)
Title: Space-saving injection moulding machine - has usual fixed and moving mould clamping plates but injection unit is on side of moving plate remote from mould
Inventor: BRANDT MATTHIAS
IPC: B29C45/03
Filed: 1990-05-15
Abstract: An injection moulding machine for plastics has a main frame which mounts the injection and closure unit; the closure unit has one fixed and one moving mould clamping plate with the mould tools between them and is on columns through one such plate; when the mould is closed that plate enters components of the other plate, where those components provide the closing force; the injection unit is located on the side of the moving plate remote from the mould.
Patent DE-4018037-A1 (DE)
Inventor: DOETSCH WERNER DIPL CHEM DR
IPC: B01J2/04
Filed: 1990-06-06
Abstract: A process for making peroxoborate agglomerates with an active oxygen content of at least 14% by weight is described and entails subjecting amorphous peroxoborate primary particles produced by a spray-drying process to a compacting agglomeration under pressure. Briquettes, flakes and tablets can be obtained and can, where appropriate, be comminuted to peroxoborate granules of required particle size and apparent density. Advantageous, where appropriate also coloured, peroxoborate agglomerates, in particular peroxoborate granules, are produced. Preferred agglomerates or granules consist of sodium peroxoborates.
Patent DE-4021472-A1 (DE)
Title: Welding thermoplastic sections to give watertight welds - using joining strip with built-in electric heating wires
Inventor: ZICKERMANN HERBERT
IPC: B29C65/34
Filed: 1990-07-05
Abstract: Continuous lengths of plastic section are welded together so that their profiled edges interlock with the profile of a joining strip. Electric heating wires are built into the flanks of the profiles for welding them under heat and pressure.  The profiles are designed so that forces between adjacent sections can be transmitted via the joining strip and so that heating by means of the wires generates a pressure between the joint faces. A tag can be provided to hold the joining strip in place during assembly. USE/ADVANTAGE - The invention gives water tight welds which are more consistent then with previous methods of heating.
Patent DE-4022680-A1 (DE)
Title: Bale opener with cutter supported on parallel links - has overhead carriage movement corrected for horizontal displacement as cutter moves vertically
Inventor: HERGETH HUBERT A DIPL ING
IPC: D01G7/10
Filed: 1990-07-17
Abstract: A bale opener has a carriage (3) above the bales (6) which supports a cutting head (1) by means of a parallel motion mechanism with at least two arms (2). The carriage is driven electrically to compensate automatically for the horizontal movement of the cutting head (1) as it operates at different heights. USE/ADVANTAGE - Accurate positioning of the cutting head in a confined space is obtd.
Patent DE-4027083-A1 (DE)
Title: Trench-side walling system -  has rollers at panel corners accommodated for the most part inside pockets
Inventor: HESS WILHELM
IPC: E02D17/08
Filed: 1990-08-27
Abstract: The walling system supports the sides of a trench, having pairs of opposite vertical supports (1,1') at regular intervals along the trench and held apart by transverse stiffening members (3).  Guide channels (4,4') on opposite sides of the supports accommodate the edges of walling panels (5,6;5',6').  The latter are of large area, double-skinned and of steel plate, with rollers (7) on tranverse axes at their edges, running against the sides (2) of the supports. At the four corners of each panel pockets (11,11') are formed between the inner and outer skins (8,9) and open towards the narrow edges (10).  More than 60 percent of each roller is contained inside the pocket. ADVANTAGE - No jamming of panels between supports.
Patent DE-4028360-A1 (DE)
Title: Printed tubes with main part and fastening -  incorporate annular collar on neck, with fastening rim gripping behind it, and tongue=and=groove connection
IPC: B65D35/02
Filed: 1990-09-06
Abstract: The printed tubes consist of a main part (1) on which is a fastening (2). They are produced with the tube main part (1) being rotationally symmetrical to the tube axis (18) while the fastening (2) has a non-rotationally symmetrical shape. The tube neck (16) has an annular collar (17) behind which grips the rim of the fastening (20). Between the tube-neck (16) and the fastening is at least one axial tongue-and-groove connection. The tube-neck (16) has axial teeth in the gaps between which grip axial teeth (22) on the fastening (20). USE/ADVANTAGE - The position of the fastening can be positioned according to the alignment of the printed picture on the tube main part.
Patent DE-4035887-A1 (DE)
Title: Shaped recyclable articles from lignocellulosic material - by partially wet pulping dry chopped waste paper, dewatering in perforated mould, and drying
Inventor: EISENSTEIN RUBIN DR ING
IPC: C08L1/02
Filed: 1990-11-12
Abstract: The prodn. of environmentally friendly recycleable articles is claimed, using lignocellulosic material consisting of paper or waste paper which is dry cut or chopped to a length typically of 1 mm, partially wet ground to a pulp in this form, mechanically or vacuum dewatered in a perforated mould and subsequently dried. The stability of the prods. can be improved by incorporating small amts. of environmentally friendly binders such as latex, starch, waterglass or mixts. of these, without upsetting the dewatering properties. USE/ADVANTAGE - The prods. have good recycleability, do not cause environmental pollution if disposed of by burning or composting, and can be formed into articles of high strength and thickness. The moulded parts are useful e.g. as building boards, separating wall panels, chair seats and backs, cupboard and bookshelf parts, packaging materials such as containers and distancing pieces, gardening items such as trays for pot plants, etc.
Patent DE-4035930-A1 (DE)
Title: Digital inclination angle measuring instrument - uses capacitor providing analogue output representing inclination of measured object
Inventor: MESENHOELLER REINHARD
IPC: G01C9/06
Filed: 1990-11-12
Abstract: The instrument has a bearing surface brought into contact with a measured object and incorporates a verticality sensor (29) using a capacitor, exhibiting a capacitance which is dependant on the angle of inclination, with its vertical axis perpendicular or parallel to the bearing surface. The analogue inclination signal provided by the sensor (28) is fed to an electronic evaluation stage (31) with an A/D converter supplying an output signal fed to a digital display (7). Pref. the sensor (29) pref. comprises a capacitor with a liquid dielectric, the analogue output signal pref. fed via a pulse discriminator (32) and phase rectifier (33) to a comparator (34) for comparison with an adjustable reference signal, the obtained difference fed to an A/D converter (37). USE/ADVANTAGE - Simple, robust device with high measuring accuracy.
Patent DE-4101781-A1 (DE)
Title: Multi-pocketed air mattress - has different shaped air chambers to match body shape
Inventor: KOLB RAINER DIPL ING
IPC: A47C27/10
Filed: 1991-01-18
Abstract: The air mattress has several inflatable chambers forming the surfaces of the top and bottom sides. These surfaces can adapt to the shape of the human body and are formed by chambers with variable air volumes forming different cross-sectional profiles. The surfaces can be formed from irregular chambers whereby the top side can be designed as chambers forming a flat surface whilst the bottom side can have chambers forming a convex surface. The chambers of the top and bottom sides can have variable extension properties. USE - Especially useful for travelling whereby strange beds can be adapted for the personal shape by using the intermediate air mattress.
Patent DE-4103201-A1 (DE)
Title: (R)-alpha-sulphonyloxy-nitriles, useful for stereospecific synthesis - obtd. by reaction of corresp. (R)-alpha-cyanohydrin with sulphonic acid halide or anhydride in inert solvent in presence of organic base
Inventor: EFFENBERGER FRANZ PROF DR
IPC: C07C255/29
Filed: 1991-02-02
Abstract: (R)-alpha-sulphonyl oxynitriles of formula (I) are new. In (I), R1 = 1-20C alkyl, cycloalkyl or aryl; R2 = toluyl, Me, CF3 or F. Also claimed is a process for the prodn. of (I), by reaction of the corresp. (R)-alpha-cyanohydrin of formula R1-CH(OH)(CN) (II) with a cpd. of formula R2-SO2-X (III) (with X = Hal or =OSO2R2) in inert organic solvent and in the presence of an organic base. Pref., solvent is, e.g., CH2Cl2, CHCl3, hexane, toluene, ether, THF, etc., and base is, e.g., pyridine, picoline, lutidine, piperidine, imidazole, Et3N, etc. USE/ADVANTAGE - For the prodn. of (S)-alpha-acyloxynitriles, (S)-alpha-phthaloylaminonitriles, (S)-alpha-azidonitriles and (S)-aziridines. The invention extends the synthetic potential of optically active cyanohydrins, esp. since the above further reactions of (I) proceed with a high deg. of stereoselectivity to give Walden inversion prods. contg. the original CN gp.
Patent DE-4104693-A1 (DE)
Inventor: BENCKERT HARTMUT DR
IPC: F04B15/02
Filed: 1991-02-15
Abstract: The invention relates to a device for conveying dense substances, muds and the like with a dense substance pump (14), a conveyor line (12) connected to the pressure side of the dense substance pump (14) and a retainer (10) arranged in the conveyor line (12), allowing the conveyed substance to advance in the conveying direction and at least partly preventing travel in the opposite direction. According to the invention, the retainer (10) has an aperture (32) automatically widening elastically under the effect of the conveyed substance flowing in the forward direction and narrowing if the substance stops or goes into counter-flow which is preferably limited by several sprung blades (30) tensioned on one side in the region of the inner surface of the conveyor line (12) and extending at their free ends obliquely in the conveying direction to the inside of the conveyor line (12).
Patent DE-4112201-A1 (DE)
Title: Multipole electrical connector
Inventor: MORITZ HANS-PETER
IPC: H01R13/422
Filed: 1991-04-13
Abstract: The multipole electrical connector has one half of the unit produced as a moulded block (13) that has a number of formed apertures that receive the connectors (30) attached to the ends of wires. Each connector is produced as a metal pressing that is crimped onto the wire. The end is formed with rolled contacts between which a connecting pin may be forced.     The side of the metal connect is formed with a contact shoulder (34) that engages a latching surface (28) in the housing. The latching element deflects during assembly. Once the connector is inserted it is securely retained.
Patent DE-4115064-A1 (DE)
Title: Part-lined disc brake with fixed yoke
Inventor: WEILER ROLF
IPC: F16D65/092
Filed: 1991-05-08
Abstract: The part-lined disc-brake comprises a fixed yoke (1) immovably fixed to the vehicle and gripping over the brake-disc outer rim and possessing a radial shaft (2). Axial brake blocks (5, 6) positioned on each side of the brake-disc, move axially on the brake yoke. Brake pistons (4) press the brake blocks on the brake disc and slide axially inside brake-cylinders (3) on each axial side of the fixed yoke.     At least one brake block has a support plate (7, 8) to which are detachably fixed one or more friction-lined brake pads. The fixed yoke side in the brake-disc peripheral direction has axial arms (10) which have support surfaces (11, 12) for the plate which has pref. L-shaped protuberances (9).
Patent DE-4116497-A1 (DE)
Inventor: NEHER PAUL
IPC: B65H51/22
Filed: 1991-05-21
Abstract: A yarn feeding device which can be switched between positive feed and intermittent feed comprises a yarn guide element (31) associated with the lower edge (30) of a storage drum (3) and which can be displaced by means of an electromagnetic setting member (32) selectively to a first position (solid lines) allowing the intermittent feed and a second position (broken lines) producing the positive feed. The element (31) may be pin-like as shown or formed as a hook pivoted by means of a rotary electromagnet or it may comprise an eye which is displace able along an inclined path between its first position on the drum axis (8) and its second position adjacent the drum edge (30). <IMAGE>
Patent DE-4118292-A1 (DE)
Inventor: KLIMPKE REINHARD
IPC: F16K27/04
Filed: 1991-06-04
Abstract: The invention relates to a slide guide for a gate valve which can be inserted into the casing (1) of the gate valve. An easily interchangeable slide guide which can easily be suited to special requirements is provided by a tube section (3) with two guide strips (4) which partly surrounds with recesses (6) the seat rings (2) arranged in the casing (1) of the gate valve.
Patent DE-4118770-A1 (DE)
Title: Preparing antibodies against unstable antigens, esp. active anaphylatoxin - by direct contact of immunogen and spleen cells, useful diagnostically and for treating elevated complement activation
Inventor: BURGER REINHARD PROF DR
IPC: C07K14/47
Filed: 1991-06-07
Abstract: Antibodies (Ab) are produced by directly contacting splean cells with at least one unstable immunising antigen (Ag). Also new are (1) anti-anaphylatoxin antibodies (Ab1), specific for the active form of anaphylatoxin (I) and prepd. by this method and (2) cell lines able to produce Ab1. More specifically, Ag is a material which undergoes rapid enxymatic metabolism in the body of the animal being used for Ab prodn.. Partic. it is a protein and/or peptide, specifically the active forms of anaphylatoxins C3a,C4a and/or C5a. USE/ADVANTAGE - Ab1 are used (1) therapeutically in cases of enhanced complement activation (esp. admin. by intravenous injection); or (2) diagnostically for quantitative determn. of the active forms of (I). Ab1 do not react with either inactive (I) or native complement factors.
Patent DE-4123417-A1 (DE)
Title: Multiple optical fibre coupling - encloses central fibre by outer fibres and receives primary optical fibre in opposite ends of glass capillary
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/28
Filed: 1991-07-15
Abstract: The coupling has a central optical fibre (4) surrounded by a number of outer optical fibres (6), arranged in a circle. The optical fibres (4,6) are contained within a glass capillary (7), with the central fibre (4) welded to a primary optical fibre (5) extending from the opposite side of the glass capillary (7) to the central optical fibre (4) and the surrounding optical fibres (6). Pref. the length of the central optical fibre (4) within the glass capillary (7) is shorter than the outer optical fibres (6), so that the inner end of the primary optical fibre (5) is surrounded by the latter. ADVANTAGE - Accurate positioning of optical fibres for min. signal attenuation.
Patent DE-4124637-A1 (DE)
Title: Sprung belt tensioning assembly - has freewheel also acting as friction brake to dampen arm without separate friction sleeves
Inventor: GIESE PETER DR ING
IPC: F16H7/12
Filed: 1991-07-25
Abstract: The belt tensioner has a spring-tensioned arm and damper with a free wheel whose clamping strips (15) are shaped so that, in the locking direction of the freewheel they are in slide friction contact with at least one of the facing clamping tracks (13,17). One of the clamping tracks (13,17) can be formed on the locally fixed housing (4).The opposing track is formed on the rotatably mounted tension arm end (2). One clamping track (17) can be cylindrical and the other can be formed by circumferentially sequential grooves (14). ADVANTAGE - The damper can be formed  integrally in the tensioner.
Patent DE-4125786-A1 (DE)
Title: Prodn. machine for shoe last toe and heel parts - makes curved-out parts, holes, links, expander piece, pull strap, and wedge and levers, with stops
Inventor: SCHAAF KLAUS-JUERGEN DR
IPC: A43D3/02
Filed: 1991-08-03
Abstract: The last parts for the heel and toe (4) have curved-out parts (9) and holes bored through for holding and attaching a link joining the heel and toe parts. A pull piece (12) consists of a pull-strap (15) and an expander-piece (13). The pull piece in the curved-out part is fixed to the toe or heel part and is attached by a bolt (18) fitting into a hole, on the toe or heel part. The expander piece consists of a wedge (14) and two levers (16,17) joined by another link (19), and joined to the pull-strap. USE/ADVANTAGE - The shoe-last is precision-mfd. with few fixtures.
Patent DE-4127621-A1 (DE)
Title: Injection mould for e.g. toothbrush(es) - has revolving inner tool so that first shot is injected into one end before it is turned and second shot enters e.g. other end of cavities
Inventor: SENN ALEXANDER
IPC: B29C45/16
Filed: 1991-08-21
Abstract: A machine for the production of brushes has an injection mould to make the bodies of the e.g. toothbrushes or similar, where the bodies concerned consist of a number of successively injected parts (particularly away from their heads); for the purpose the mould has a revolving tool and impressions which are preferably arranged on opposite sides of the centre plane running through that revolving tool; the system has a fixed mould plate on the gate side, another plate on the ejector side and a centre revolving component with a shaft passing through the centre of the latter plate; this component has a device to hold the punches for the bristle holes made later in the head of the brush; and the punches provide a holder for the bristles when the component revolves. The ends of the mould impressions for the head or holding part face together the plane through the centre line and also the revolving component; the part of the impressions to produce the brush head where a second shot of material is injected in a further operation faces outwards away from the centre line plane in the plate on the ejector side. ADVANTAGE - The machine has a simple design. It simplifies production. Its mould has a long service life. The whole machine is compact
Patent DE-4127681-A1 (DE)
Title: Total thermal energy exchange element prodn. - by bonding siccative particles e.g. silica gel to plate with adhesive, corrugating plate and laminating with planar plate
Inventor: KUMA TOSHIMI
IPC: F28F21/00
Filed: 1991-08-21
Abstract: A novel mixed oxide catalyst is claimed which is formed by thermal activation at 300-700 deg.C of a VOH-PO4.0.5H2O precursor and which has P and 4-valent V in an atomic ratio of 1.00-1.03. Claimed reactions using the catalyst are (i) prodn. of methacrylic acid by oxidative dehydrogenation of isobutyric acid and/or isobutyraldehyde; (ii) prodn. of lower alkyl methacrylates by (a) oxidative dehydrogenation of a lower alkyl isobutyrate or (b) oxidative dehydro-esterification of isobutyric acid with a lower alcohol. ADVANTAGE - The catalyst shows high activity in reactions (i), (iia) and (iib), giving high conversion of the isobutyric acid and high selectivity towards the required prods. Also, the catalyst has good thermal stability and the required prods. are easily isolated.
Patent DE-4136845-A1 (DE)
Title: Level meter esp. for wells, pipes or boreholes - has measuring probe on end of cable wound around limited width of drum in well mouth
Inventor: HEEL HELMUT
IPC: G01F23/00
Filed: 1991-11-08
Abstract: The level meter has a measuring cable (7) wound on a rotary drum (5). The drum carries an electrical measuring probe (11) at its free end which is lowered into a well (31). Contact with the liquid surface triggers a signalling device (17) which indicates a change of conductance between two axially-spaced annular electrodes (15). A flat tubular frame (1) around the drum is terminated in a foot (23) with guidance supports (29) which partly enclose the cable, and project for a short distance into the mouth of the well. ADVANTAGE - More easily managed device with better protection against damage to measuring cable.
Patent DE-4201728-A1 (DE)
Title: Identification and coding for handling mail - using terminal for entry and printing of code data on letters together with franking.
Inventor: CHAUD DANIEL
IPC: B07C3/18
Filed: 1992-01-23
Abstract: A coding machine for post has a display field (3) for entered or derived data. Below this, a keyboard stage (4) allows entry of postal code data. A further keyboard (6) has function keys (7) and an entry for alphabetic symbols (8). The function keys consists of a postage charge key (10), print key (11), correction key (12), on-off key (13) and a search key (14). The latter allows the code for a geographic region to be determined. Built into the unit, a reader is provided for entry of a charge card. The coded data are printed and the letter is franked. ADVANTAGE - Mainly automatic sorting of written material, reducing costs on both technical and personnel investment.