baber/WOPTO huggingface dataset:
Patent DE-4106623-A1 (DE)
Title: Cellulose acetate microspheres with surface hydroxyl gps. - by dispersing soln. of cellulose acetate in volatile solvent, in aq. medium, then evaporating and hydrolysing with aq. sodium hydroxide soln.
Inventor: LOTH FRITZ DR
IPC: C08B3/24
Filed: 1991-02-27
Abstract: Hydroxyl gp.-contg. cellulose acetate (CA) microspheres (I) consist of 0.1-50 micron spherical particles with a compact CA core and a mainly cellulosic surface layer making up 1-50% of the total wt. of the particle, with sedimentation vol. 0.5-4 ml/g on swelling in water and porosity below 0.4 ml/g for meso- and macro-pores. Also claimed is a process for the prodn. of (I), by dissolving CA and opt. other additives in a volatile, water-immiscible solvent, dispersing the soln. in an aq. medium contg. suitable protective colloids and/or emulsifiers, then removing the solvent in evapn. and hydrolysing the microspheres; hydrolysis is carried out with 0.05-1N aq. NaOH soln. for 5-360 mins. at 20-50degC (during or after evapn. of solvent), and is stopped by neutralising with mineral acid or AcOH or by washing out the alkali. USE/ADVANTAGE - (I) are useful for the prodn. of special sepn. and carrier materials for chromatographic and diagnostic applications in biotechnology, biochemistry and medicine. The invention provides OH-contg. CA microspheres with desirable properties such as sphericity, small particle size and porosity, in which the OH gps. are largely localised at the surface of the particles; (I) are produced by a simple, economical proces
Patent DE-4107367-A1 (DE)
Title: Prepn. of food ready for cooking - by doughing hard wheat grits, eggs and rolled oats, shaping to noodles and drying
Inventor: RUDOLF JOERG
IPC: A23L7/109
Filed: 1991-03-08
Abstract: In prepn. of dough goods ready for cooking, by doughing hard wheat grits and eggs, shaping the compsn. to noodles, and drying the noodles, rolled oats are added during the doughing.  Pref the hard wheat grits, egg and rolled oats are used in ratio by wt. of 6.5 : 3 : 2, and 8 eggs are used per kg of dough. ADVANTAGE - The food quickly rebuilds energy lost during bodily stress. It is rich in ballast material, proteins, essential fatty acids, and vitamins, and has a good effect on the cholesterol level. The oats supply minerals and carbohydrates, e.g. starch and sugars. The food is of partic. value to sportsmen and people doing heavy work.
Patent DE-4113388-A1 (DE)
Title: Flow regulating valve for hydraulic system - has actuator adjustment provided by stepping motor to rotate valve restrictor through angle to adjust restricting orifice and with electromagnetic brake to maintain position
Inventor: DAPPA EWALD
IPC: G05D7/06
Filed: 1991-04-24
Abstract: The valve has a flow restricting element (620) that is moved through an arc to control the flow to an outlet (208). The element is coupled (622) to a spindle (654) that receives input from a stepping motor (640). The spindle of the motor is coupled to a bush (660) with a flange (662) and an axial ball bearing (664) provides low friction support. The bush has an extension with a stop (690) to limit movement. Coupled to the motor is an electromagnetic brake (642) that maintains the set valve position. ADVANTAGE - Improved adjustment accuracy over range.
Patent DE-4119610-A1 (DE)
Inventor: JECK HORST
IPC: B60N2/06
Filed: 1991-06-14
Abstract: The aim of the invention is to improve the adjustment of a vehicle seat fitted on a rail. This is achieved by virtue of the fact that the rail slides on its surface on a drive nut, made preferably of plastic, in whose internal thread the spindle engages. Preferred embodiments of the invention are concerned with improving longitudinal control of the rail on the drive nut and preventing the rail from leaving the nut in a radial direction.
Patent DE-4122405-A1 (DE)
Title: Waste weighing system with accounting for refuse containers - records wt. of discharged material and associates corresp. costs with users, and monitors for correct operation
Inventor: SCHAEFER THILO
IPC: B65F1/10
Filed: 1991-07-08
Abstract: The waste weighing system records the wt. of each quantity of the material during waste disposal for use as a basis for charging. The computed charges are associated with the user either in real time or subsequently. Appropriate use is monitored by comparing the measurement values at the beginning and end of the user process. If faulty use is detected and process is blocked by an electronic controller and this is indicated, e.g. visually or acoustically. The faulty operation is corrected and the block removed. USE/ADVANTAGE - For use with conventional or new types of refuse containers. Achieves correct collection, weather resistance, robustness etc.
Patent DE-4122648-A1 (DE)
Title: Tyre with built-in tread wear indicator - has thick rubber tread contg. embedded rubber inserts in e.g. contrasting colour to show up when wear reaches permissible limit
Inventor: DUBBEL SIEGFRIED
IPC: B60C11/24
Filed: 1991-07-09
Abstract: A vehicle tyre has a carcass inside a rubber layer which provides the tread and this has a pattern of ribs, grooves and/or cuts. The thicker part of the rubber to form the thread has at least one layer which shows up when the tread reaches the safety limit to the wear on its ribs. ADVANTAGE - The design enables the driver to know when the tyre tread has been worn too far and hence requires the tyre to be replaced.
Patent DE-4126327-A1 (DE)
Title: Brochure with wire binding - which is formed into loops which grip rail of special cross=section fastened to cover
Inventor: BIPPUS HUGO
IPC: B42B5/10
Filed: 1991-08-08
Abstract: A brochure has leaves (16) with a line of perforations near one edge. The leaves are held in a cover (22) by a comb formed from wire. The wire is formed into open loops which are connected to each other and spaced apart to correspond with the perforations in the leaves. The spine (20) of the cover (22) has an attached rail (18) with a relatively wide head (26) supported by a thin rib. The open ends of the wire loops fit over the head of the rail (26). The rail is fastened to the spin (20) by a rivet (42). USE/ADVANTAGE - Binding for a brochure by a low cost method.
Patent DE-4127391-A1 (DE)
Title: ABS braking circuit for motor vehicle -  has non-return valves shunting rear proportional valves for rapid pressure release
Inventor: KUBOTA HITOSHI
IPC: B60T8/1764
Filed: 1991-08-19
Abstract: The braking circuit has a diagonal control with the right front brake linked to the left rear brake and vice versa for the other wheels. The rear brakes are in line with proportional valves (13a,b) which reduce the rear brake pressures in proportion to the front brake pressures.  These valves are shunted by non-return valves (14a,b) which dump fluid back to the system if the brake modulation system (5) operates. The ABS brake modulation system is in the brake lines (11,12) between the master brake cylinder (2) and the two brake circuits.  The non-return valves are fitted into simple shunt lines and can be fitted to existing brake circuits.  They reduce the hysteresis in the brake response during ABS braking. ADVANTAGE - Allows proportional braking on rear brakes during ABS.
Patent DE-4130982-A1 (DE)
Title: Anchoring girder for machinery in roadways and tunnels - has stop box with vertical axis, about which pivot jibs with support shoes
Inventor: KROHM REINHOLD DIPL ING
IPC: E21F13/10
Filed: 1991-09-18
Abstract: The roof of a tunnel or mining gallery is supported by arches. Each arch is clamped in position by a two-arm jib (7,9) which can be swung about a central vertical axis (10). Each arm carries a shoe (6,6'), at its outer end, which is pressed against the vertical part of the arch at a point close to the tunnel floor. Each arm has an inner part formed by a hydraulic cylinder, and an outer part formed by the piston rod (12). The shoes are pivoted to the outer end of the piston rod, and the arms are swung outwards by a third hydraulic cylinder (22). USE/ADVANTAGE - For mining and tunnelling machinery anchoring, with high continuous force and security.
Patent DE-4131372-A1 (DE)
Title: Deforming element for automobiles
Inventor: THUM HOLGER MICHAEL DIPL ING
IPC: B62D21/15
Filed: 1991-09-20
Abstract: Along the longitudinal axis of a hollow beam (1) is a tubular deforming member (2) of smaller diameter. The front face of this member (2) is supported on the beam face by a collar. The hollow beam (1) also has on its front face a collar, the two collars being joined together.     Under the action of a force the element is shorted by returning the deforming member (2) towards the inside of the beam (1). The deforming member reduces conically as the distance from the hollow beam increases. The beam is supported in the deformed state by a fold (9) on the deforming member (2).
Patent DE-4133265-A1 (DE)
Title: Protective oversole for climbing boots - grips at side, back and front round and is made of tough elastic profiled rubber.
Inventor: BAUN JOACHIM
IPC: A43C13/12
Filed: 1991-10-08
Abstract: The protective oversole (4) for climbing boots grips round the entire sole as well as the side, back and front frictional surfaces of the boot. The sole has a profiled tread and is thicker than the remaining frictional protective surface. The sole is made of a single piece of tough elastic rubber and is fastened to the climbing boot by two quick-fastening clasps, or by eyelets on the boots through which the protective oversoles are hooked. USE/ADVANTAGE - Climbing boots are prevented from slipping by an added oversole which is quickly and easily attached.
Patent DE-4138793-A1 (DE)
Title: Process and appts. for coating substrate - uses current source connected to cathodes in evacuated coating chamber
Inventor: SZCZYRBOWSKI JOACHIM DR
IPC: C23C14/00
Filed: 1991-11-26
Abstract: Process for coating a substrate (7), esp. with non-conducting layers, of electrically conducting targets (3,4) in reactive atmos., uses a current source (12,13,14) connected to cathodes (1,2) in an evacuated coating chamber (15), which act electrically together with the targets (3,4) that are then sputtered. The sputtered particles form on the substrate (7). The novelty is that the ave. freq. voltage is chosen at a lower figure that the plasma discharge occurs at each zero througput of change in voltage and is ignited in each semi-wave of voltage change as soon as the voltage of the transformer (12) rises sufficiently. The exits (12a,12b) of the sec. coil of the transformer (12) are connected to one of the cathodes (1 or 2), the transformer being connected to a generator (13). Supply lines (20,21) are connected via a branch line (22), in which a resonant circuit is arranged. Each of the lines (20,21) is connected not only via a first network (16 or 17) to the coating chamber (15) but also via a corresponding second network to each anode (5 or 6). ADVANTAGE - During the coating process using magnetron sputtering source in reactive atmos., arcs disappear or the tendency or arcs to appear is reduced.
Patent DE-4205508-A1 (DE)
Title: Controlled feed device for infusion and transfusion - comprises lower conical and upper cylindrical space sections forming valve chamber
Inventor: THIELE ERWIN
IPC: A61M5/168
Filed: 1992-02-24
Abstract: The controlled feed device has a housing in which is a valve chamber. It has two connections extending radially from the housing in the area of the valve chamber and a rotary valve body in the chamber. The valve chamber comprises a lower conical section (4) and an upper cylindrical section (5) and likewise the valve body (2) comprises a lower conical body section (11) and an upper cylindrical body section (12). The cylindrical body section (12) extends over the valve chamber and is provided with a threaded muff (14) coaxial to the valve body and connected to it non-rotarily. A further threaded muff (10) is provided coaxial to the valve chamber and rigidly fixed to the housing (1). USE/ADVANTAGE - A controlled feed device for infusion and transfusion techniques which is simpler and more favourable cost-wise to produce.
Patent DE-4206583-A1 (DE)
Title: Ultrasonic welding of thermoplastic components - using tool tip which penetrates both components and guides displaced material to fill groove left by tool tip
Inventor: WAGNER THOMAS DIPL ING
IPC: B29C65/08
Filed: 1992-03-03
Abstract: Two thermoplastic components (4,5) are welded by an ultrasonic welding tool (1) which moves relative to the components. The tool tip (3) penetrates the components (4,5). The molten material which is displaced can be guided round the tip (3) to form the seam, esp. in a way so as to fill the groove behind the tip (3). Stationary components (4,5) are welded by a tool (1), which moves in the direction of the arrow (6) and is vibrated ultrasonically so that the material softens. The tool tip (3) penetrates both components (4,5) and has a step (8) in line with the top surface (9) of the upper component (4). A forward facing taper (14) pushes the displaced material into a channel within the tool tip (3) and guides it to the rear of the tip to fill the groove left by the tool. USE/ADVANTAGE - Allows thick walled components to be welded ultrasonically with simple equipment.
Patent DE-4211352-A1 (DE)
Title: Swivel fitment for movable furniture parts, e.g. for slatted bed, or lounger - has top and bottom pair of levers, links, torsionless connections, and mechanical or electrical linear drive
Inventor: SCHMID KURT DIPL ING
IPC: A47C20/04
Filed: 1992-04-04
Abstract: The swivel fitment for furniture with movable parts (19), especially beds of loungers, consists of a bottom pair of rocking levers (1) linked to a fixed (2) and movable (19) furniture part. The top pair of levers (3) has a torsionless connection (6) between the links (4,5). Between the links is a downward pointing lever part (7) on which is mounted by means of links (9,10) a mechanical or electrical linear drive (8). The top pair of levers is supported on a downward pointing lever (11), and is rigidly supported on a torsionless connection (12) between the bottom pair of levers. When the linear drive is extended, a momentum (20) on the axle (4) is simultaneously produced on the bottom (1) and top (3) pair of levers. USE/ADVANTAGE - Furniture such as slatted beds can be adjusted vertically and horizontally by a centrally driven linear drive.
Patent DE-4213159-A1 (DE)
Title: Automatic charging system for electrically powered road vehicle batteries - has front bumper engaging contact coupled to coin or card operated machine to automatically control charging
Inventor: KRUSE ERNST OTTO DIPL ING
IPC: H02J7/00
Filed: 1992-04-22
Abstract: The batteries of an electrically powered road vehicle may be recharged by driving the vehicle into the parking bay of a coin or card operated (9) station. The front bumper (1) of the vehicle is driven against an elastic stop (7) which causes an electrical switch (8) to be operated. Electrical connections (3) to the vehicle batteries are built into the bumper. When the coin/card operated control unit is actuated, a pivot mounted arm (5) moves to connect the vehicle battery to the supply and charging proceeds. USE/ADVANTAGE - Automatic unmanned vehicle battery charging.
Patent DE-4215902-A1 (DE)
Title: Folded cardboard box assembly - has secondary blank marked out by bending lines to convert box into second shape after initial use
Inventor: MUELLER THOMAS
IPC: B65D5/462
Filed: 1992-05-14
Abstract: Two of the box parts adjoining one another along a folded edge have an integrated secondary blank (46) in the form of  areas defined by printed and/or pre-marked bending or separating lines.  At least one of the folded edges forms at the same time a bending line (52, 68) between two of the blank areas of the secondary blank. The secondary blank can be arranged on the inside of the box parts so that the areas adjoining the fold edges can be set up in opposite directions. The outer box which may contain advertising on the outside can then be turned inwards and the inner box turned outwards. USE/ADVANTAGE- Longer life before disposal.
Patent DE-4219400-A1 (DE)
Inventor: SEDLMEYER ROBERT
IPC: H04H20/88
Filed: 1992-06-13
Abstract: The invention concerns a method of detecting and, if necessary, correcting or masking errors in a digitized data-reduced audio signal consisting of a sequence of data blocks which are to be transmitted or stored, the individual data blocks being, for instance, bit-allocation data, scale-factor selection data, scale factors or encoded sampling values from part-band filtering or transformation in the spectral region, such as Fourier transforms. In this method, one or more received bit patterns for the data units of a data block are graded by their probability of occurrence and, if the probability is low, declared to be erroneous and, if necessary, corrected or masked.
Patent DE-4221541-A1 (DE)
Title: Braking assembly for trolley castor - uses bolt-activated lever with profiled engagement section for castor
IPC: B60B33/02
Filed: 1992-07-01
Abstract: The braked castor has a braking lever (13) which can swivel about a line (15) between fork shanks (3a) on the trailing side of the castor and parallel to the roller axis (8). A bolt (12) movable in the vertical swivel axis (6) can be pressed against the brake lever to cause it to engage the castor with the profiled contact section (16). A spring (24) is arranged between the roller fork (3) and the braking lever. USE/ADVANTAGE - Braked caster for trolleys in stores and supermarkets in which the braking lever is easily actuated with optimal effect.
Patent DE-4221753-A1 (DE)
Title: New polysaccharide derivs. from Sedum telephium
Inventor: WAGNER HILDEBERT PROF DR DR
IPC: C08B37/00
Filed: 1992-07-02
Abstract: New polysaccharides have a basic structure of formula (I) or (II) and (a) a mol. wt. of 13000 D (I) and 14000 D (II), (b) a uronic acid content of 55% (I) and 35% (II), (c) a protein content of 7% (I) and 4% (II), (d) an optical rotation of +140 deg. (I) and +65 deg. (II) and (e) a neutral sugar content of 5% rhamnose, 4% arabinose, 8% galactose and 0.5% glucose (I) and 11% rhamnose, 7% arabinose, 1% xylose, 6% galactose and 1% glucose (II) and (a)-(e) are average values. R1 = (a); R2 = (b); R1' = (alpha-(1-4)-alpha-GalpA)n-R3, R3 or -(1-3)-Rhap-1Rhap; and R3 = (c).
Patent DE-4226153-A1 (DE)
Title: Furniture especially recliner, armchair, bed, table or part thereof - has framework of constituent parts linked together and held taut by tension piece consisting of cable pulley
Inventor: HAENSEL DIETRICH
IPC: A47C20/04
Filed: 1992-08-07
Abstract: The framework's constituent parts (1) have one tension piece with cable pulley. The constituent parts can be re-formed to form a recliner and/or table and/or bed. Two rows of adjacent constituent parts are joined by linked arms (2). A canvas covers the constituent parts. Each link arm has at least one cog (5). The constituents part have holes (7) in for tension cables to go through. ADVANTAGE - The piece of furniture can be adjusted to different positions and consists of few constituent parts which are held taut by a tension piece.
Patent DE-4229123-A1 (DE)
Inventor: LORENZ BERND DR
IPC: B21H1/18
Filed: 1992-09-01
Abstract: A rolling device for producing corrugated workpieces made of a metallic material has two flat jaws which can be synchronically moved towards each other in parallel planes, tangentially to a workpiece revolving around its longitudinal axis. The object of the invention is to provide a device for purposefully shaping non rotationally symmetrical sections in the corrugated workpieces with respect to their longitudinal axis. For that purpose, at least one rolling block (3), whose width is smaller than the total length of the workpiece (1), whose length rolling in the circumferential direction on the workpiece (1) is smaller than or equal to half the circumference of the workpiece, and whose height corresponds to a predetermined eccentricity, is provided on a flat jaw (2b). When the flat jaws are moved, the rolling block (3) displaces the material of the workpiece (1) heated up to an appropriate forging temperature of the material. The displacement of the material leads to the formation of a non rotationally symmetrical section and at the same time to a change in the length of the workpiece, or when the workpiece is laterally limited, to corrugations of the workpiece.
Patent DE-4233266-A1 (DE)
Title: Heater for vehicle - has valve in heat-carrying circuit activated by bimetallic strip and which closes at predetermined maximum temp.
Inventor: SCHLAUDRAFF ERNST
IPC: G05D23/02
Filed: 1992-10-02
Abstract: A heat-carrying circuit has a temp.-controlled valve with a maximum temp. at which it closes. It is activated by a bimetallic strip or memory-effect alloy. The valve is controlled so as to be dependant on the temperature of the heat-carrying circuit and/or that of a critical component, like the heat exchanger, and/or that of the air flow through the heat exchanger. ADVANTAGE- A preset temp. limit cannot be exceeded.
Patent DE-4234627-A1 (DE)
Title: New 3-fluorophenyl-piperidine and -piperazine and precursor cpds. - used in liq. crystal medium, esp. for electro-optical display
Inventor: EIDENSCHINK RUDOLF DR
IPC: C07D211/14
Filed: 1992-10-14
Abstract: New (3-fluorophenyl)-piperidines and -piperazines are of formula (I), where R1=1-18C alk(en)yl, opt. with halogen substit(s). or a CN substit. in which 1 or 2 non-adjacent CH2 gps. may be replaced by -O-, -CO-O-, -O-CO- or -S-; A1=1,4-phenylene, opt. with 1-2F substits., in which 1 or 2 CH gps. may be replaced by N; 1,4-cyclohexylene, opt. with a CN substit., in which 1 or 2 CH2 gps. may be replaced by O or S; thiadiazole-2,5-diyl; or 1,4-bicyclo(2,2,2)- octylene; L1-3=H or F; Z1-2=-CO-O-, -O-CO-, -CH2O-, -OCH2-, -CH2CH2-, -C=C- or a single bond; W=CH or N; X=CN, NCS, halogen or a 1-8C alk(en)yl or alk(enyl)oxy gp., opt. with F and/or Cl substit(s)., in which 1 CH2 gp. may be replaced by CO; and m and n = 0, 1 or 2. USE/ADVANTAGE - Cpds. with a 1-(3'-fluoro- or 3',5'-difluoro-phenyl)-piperidin-1,4'-diyl or -piperazin-1,4'-diyl gp., esp. (I) are used in liq. crystal (LC) media, which are used in electrooptical displays (claimed). (I) are esp. useful in twisted cell, guest-host, deformation aligned phase or dynamic scattering type LCDs. (I) are stable LC or mesogenic cpds. with relatively low viscosity and high dielectric anisotropy. Media contg. (I) are stable and have relatively low viscosity, a wide mesophase range, favourable optical and dielectric anisotropy and very good low temp. properties.
Patent DE-4239135-A1 (DE)
Title: Positively chargeable liq. electrophotographic developer - based on non-aq. resin dispersion stabilised with copolymer of macro:monomer and unsatd. monomer
Inventor: HORIE SEIJI
IPC: G03G9/13
Filed: 1992-11-20
Abstract: Positively chargeable liq. developer for electrophotography contains a non-aq. solvent (I) with a specific resistance of at least 10 power 9 ohm.cm, and dispersed synthetic resin particles (II) contg. a dispersion-stabilising resin (III), which is dissolved or colloidally dispersed in (I). (III) consists mainly of a graft copolymer of (1) macromonomer(s) with Mw = 1 x 10 power 3 to 1 x 10 power 5, obtd. by binding a terminal COOH gp. on the main chain of a polymer, contg. polymer component(s) of formula (IV), to an epoxide cpd. with polymerisable double bond(s), using a quat. ammonium salt as reaction catalyst, and (2) monomer(s) of formula (V): XO and X1 = -COO-, -OCO-, -(CH2)k-OCO-, -(CH2)k-OCO-, -(CH2)k-COO-, -CO-, -CONHCOO-, -CONHCO-, -SO2-, -CO-, -CON(Z1)- or -SO2N(Z1)- or X1 = Phe (Phe = 1,2-, 1,3- or 1,4-phenylene); Z1 = H or hydrocarbyl; k = 1,2 or 3; a1-2 and b1-2 independently = H, halogen, CN, hydrocarbyl, -COO-Z2 or hydrocarbyl--COO-Z2; Z2 = H or (substd.) hydrocarbyl; QO = a 4-22C aliphatic gp.; Q1 = H or a 1-22C aliphatic or 6-12C aromatic gp. USE/ADVANTAGE - Charge control is better than usual. The developer is suitable for developing printing plates. It has good chargeability, dispersion stability, redispersibility and fixability.