baber/WOPTO huggingface dataset:
Patent DE-3138574-A1 (DE)
Title: Process for the preparation of copolymers from monoethylenically unsaturated mono- and dicarboxylic acids
Inventor: DENZINGER WALTER
IPC: C08F222/02
Filed: 1981-09-28
Abstract: A process for the preparation of copolymers which contain monoethylenically unsaturated mono- or dicarboxylic acids as copolymerised monomer units, by copolymerisation of the monocarboxylic acids with the dicarboxylic acids or optionally the internal anhydrides thereof in aqueous medium in the presence of water-soluble initiators, where   a) from 10 to 60% by weight, based on the sum of the monomers, of a monoethylenically unsaturated dicarboxylic acid having 4 to 6 carbon atoms, an alkali metal salt thereof or optionally the anhydride thereof, b) from 90 to 40% by weight of a monoethylenically unsaturated monocarboxylic acid having 3 to 10 carbon atoms, or an alkali metal salt thereof, and c) from 0 to 10% by weight of another carboxyl group-free, monoethylenically unsaturated monomer which can be copolymerised with a) and b) are copolymerised in aqueous medium in the presence of from 0.5 to 5% by weight, based on the monomers, by introducing the dicarboxylic acid, the salt thereof or the anhydride thereof into the aqueous medium and adding the monocarboxylic acid and the initiator over the course of from 3 to 10 hours, allowing the reactants to react at from 60 to 150 DEG C, and, if appropriate, hydrolysing the anhydride groups.
Patent DE-3206264-A1 (DE)
Title: Method for the operation of internal combustion engines, especially vehicle engines, and device for carrying out this method
Inventor: LINK WALTER
IPC: F01N13/08
Filed: 1982-02-20
Abstract: The backpressure acting on the exhaust pipe (1) of an internal combustion engine, especially on vehicles, is reduced by positive measures, to which end on the one hand a fan can be inserted directly into the exhaust line or the exhaust gases at the exhaust end are accelerated by a bypass flow, the speed of which is greater than that of the emerging exhaust gas flow. For generating this an ejector may be used with a bypass nozzle (6) formed between bypass sleeve (5) and a diffuser sleeve (3), which nozzle narrows in the direction of the flow and thereby accelerates the bypass flow carried by backpressure when running. In addition the inner exhaust gas flow in the diffuser cavity (34) is reduced from the inlet velocity v1 to the outlet velocity v3, which then at the annular edge (38) forming the exhaust end is again reduced to less than the outlet velocity v4 of the bypass flow if the inlet velocity v2 of the bypass flow is more than five times greater than the inlet exhaust gas velocity v1. In order to increase performance and to improve fuel efficiency with a reduced quantity of exhaust gas, this is released into the atmosphere with less harm to the environment. In the case of too low a speed of travel or when at a standstill a fan delivering directly into the inlet opening (61) of the bypass nozzle can also be switched on. <IMAGE>
Patent DE-3210495-A1 (DE)
Title: Method of producing bearing surfaces
Inventor: GRIMM HANS ING GRAD
IPC: B23P15/00
Filed: 1982-03-23
Abstract: In the method of producing bearing surfaces, in particular the inner surfaces of cylinder liners for internal combustion engines, first of all the bearing surfaces are fine-machined to the desired size and the geometric form by honing, whereupon the bearing surfaces fine-machined in this way are blasted with loose abrasive grain. Particles are thereby exposed at the surface which considerably improve the sliding properties and/or the strength of the running surface.
Patent DE-3211773-A1 (DE)
Title: Hypoallergic jasmin oil, process for the preparation thereof, and product containing the hypoallergic jasmin oil
Inventor: OHTA SABURO
IPC: C11B9/02
Filed: 1982-03-30
Abstract: The hypoallergic jasmin oil can be obtained by removing coniferyl benzoate and coniferyl acetate from natural blossom jasmin oils by distillation, molecular distillation, preparative gas chromatography, preparative column chromatography, alkaline treatments or combinations of such processes.
Patent DE-3212186-A1 (DE)
Title: Device for storing a yarn during its feed to the shed of a weaving machine
Inventor: REDIN ALEKSEJ ALEKSANDROVIC
IPC: B65H51/22
Filed: 1982-04-01
Abstract: To store the yarn during its feed to the shed of a weaving machine, there is used a device with a stationary current-conducting yarn-storage drum (8), with a yarn guide (4) mounted rotatably in relation to the drum (8) and with a current-conducting probe for checking the number of yarn turns, which can come into contact with the surface of the drum (8) and which is coupled electrically to a control unit (14) of the rotary drive of the yarn guide (2). The device has a stationary ring support (10) which surrounds the drum (8) and which has a radial groove (10a). The probe is at least one elastic ring (9) which is seated freely in the groove (10a) of the ring support (10) and which is arranged to bear under prestress against the drum (8). This allows a more exact check of the number of yarn turns on the drum during the winding of the yarn onto or its unwinding from the drum. <IMAGE>
Patent DE-3213698-A1 (DE)
Title: Pneumatic sound generator
Inventor: STOLL KURT DIPL ING
IPC: G10K1/068
Filed: 1982-04-14
Abstract: A pneumatic bell contains a bell element (20) and a hammer (38, 40) which is resiliently mounted via a leaf spring (44). The drive is provided by a single-acting diaphragm motor (22-36) which can be connected to a compressed air source (74) via a pneumatic microswitch (52). The microswitch (52) has an actuating member (58) which can be actuated by the striking body (38, 40), which is mounted in an oscillatory fashion. <IMAGE>
Patent DE-3213856-A1 (DE)
Title: Process for delignifying a cellulosic half-stuff
Inventor: SAMUELSON HANS
IPC: D21C9/10
Filed: 1982-04-15
Abstract: When gaseous oxygen and alkali are used to delignify and bleach a chemical cellulosic half-stuff, it is not possible to remove more than about half of the quantity of lignin remaining in the cellulosic half-stuff after digestion, since there exists the danger of an intense and uncontrollable decomposition of the carbohydrates in the cellulosic half-stuff. According to the invention, it is now possible to remove three-quarters of the quantity of the residual lignin while retaining good half-stuff properties; the present invention is concerned with a process for delignifying a chemical cellulosic half-stuff in which the half-stuff is brought into contact with a gas phase containing NO2 in an activation stage, and gaseous oxygen is fed to the activation stage so that the nitrogen oxide formed as an intermediate product is used to activate the half-stuff and the activation stage is performed under severe conditions, characterised in that the half-stuff is then subjected in a half-stuff/water mixture to an oxygen gas/alkali treatment process, the partial pressure of the gaseous oxygen during the oxygen gas/alkali treatment process being kept to 0.005 to 0.18 MPa, and the partial pressure of the gaseous oxygen does not fall below the lower partial pressure limit in any portion of the treatment process.
Patent DE-3216427-A1 (DE)
Title: Device for guiding two rod- or/and tube-like elements movable axially one inside the other
Inventor: WINGERTER FRANZ ING GRAD
IPC: F16C29/02
Filed: 1982-05-03
Abstract: The subject matter of the invention is a device for guiding two telescopic elements movable axially one inside the other, of which the inner element can be tube- or rod-shaped and both of which have cross-sections which differ from one another. Here, either the cross-sectional shape or the cross-sectional size differs. The telescopic elements are designed and guided in one another in such a way that the telescopic unit is capable of accepting large forces and the sliding means are easily replaceable. The telescopic unit is preferably suitable for lifting or transport units but can also be embodied as a cylinder with a piston.
Patent DE-3216463-A1 (DE)
Title: Process for producing a flexible district heating pipe
Inventor: NOACK GEORG DR ING
IPC: B29C48/151
Filed: 1982-05-03
Abstract: The invention relates to a process for producing a flexible district heating pipe having a media pipe (1) of metal and a foam insulation (2) in a plastic jacket (3), the latter being formed continuously around the media pipe. It achieves the object of providing such an endless production process which permits the continuous production of pipes of this type with or without spacers (4) and outstandingly meeting all modern quality requirements in one cycle and with relatively little expenditure. For this purpose, it is envisaged that the plastic jacket (3) is extruded as a tube concentric to the media pipe (1) and, directly thereafter, is cooled intensively, the foam insulation (2) being enclosed by the said tube or formed in it. <IMAGE>
Patent DE-3217549-A1 (DE)
Title: Heart cannula for external blood circulation
Inventor: GRBOVIC VLADIMIR
IPC: A61M1/36
Filed: 1982-05-10
Abstract: The hose (1) of the cannula has, on its end to be inserted into the ventricle, a top part (2) with a basket (4, 5) the arched webs (5) of which project beyond the hose end. The hose end forms an annular outwardly projecting bead (6) which surrounds a ring (4) of the basket to which the arched webs (5) are fixed. The basket prevents the hose opening from being wholly or partially covered by the heart wall, and the bead (6) permits accurate positioning of the cannula in the heart. <IMAGE>
Patent DE-3218429-A1 (DE)
Inventor: FABIAN PETER
IPC: C25B11/04
Filed: 1982-05-15
Abstract: 1. Methode for the production of a cathode for chloro-alkali electrolysis, in particular electrolysis by the diaphragm or membrane methode, comprising an underlayer (3) of nickel having a minimum thickness of 30 mu m applied on a carrier (2) of mild steel or steel, and an overlying Raney nickel activating covering layer (4) from which covering layer the aluminium is dissolved subsequently, the carrier (2) having sprayed on to it a dense nickel underlayer (3) of a thickness of up to 60 mu m, the latter having sprayed on to it a covering layer (4) of a thickness of 20 to 60 mu m formed by a mixture of nickel and aluminium powders having a proportion of aluminium of 10 to 50%, by means of plasma jet methods in each case, the covering layer having a porosity within the range from 10 to 50%.
Patent DE-3219707-A1 (DE)
Title: Conveyor line
Inventor: LACHMANN HANS-PETER DR ING
IPC: B65G15/42
Filed: 1982-05-26
Abstract: A conveyor belt is provided with flights disposed at intervals one behind the other. These flights consist of a level flat structure of elastic material, the two ends of which are folded or bent over and connected to the conveyor belt so as to be detachable, in such a manner that they cannot twist. The folding or bending points of the flight together with the side edges of the conveyor belt form an angle such that the flights adapt with their lower edge to the curvature of the conveyor belt. The flights are attached to the conveyor belt in such a manner that they face with their opening alternately in the direction of conveying and counter to this direction. <IMAGE>
Patent DE-3220118-A1 (DE)
Inventor: IPPEN JOACHIM DIPL CHEM DR
IPC: C07D417/14
Filed: 1982-05-28
Abstract: The invention relates to guanidinothiazol derivatives of Formula (I) as defined herein, said compounds being useful for influencing lipid metabolism, as antithombotic agents and as antimycotic agents. Also included in the invention are compositions containing said guanidinothiazol derivatives of Formula (I) and the use of said compounds and compositions for treatment of the above-mentioned conditions. In addition, the invention includes methods for the manufacture of the guanidinothiazole derivatives of Formula (I).
Patent DE-3224928-A1 (DE)
Title: Process for the preparation of salts of acrylic or methacrylic acid
Inventor: BESECKE SIEGMUND DIPL CHEM DR
IPC: C07C51/41
Filed: 1982-07-03
Abstract: The invention relates to a process for the preparation of metal salts of methacrylic or acrylic acid by reacting the acids with the oxides or hydroxides of metals from main group I, II and IV and sub-group I, II, IV and VIII of the Periodical System of the Elements at an oxidation level of the metals of not higher than divalent, the reaction being carried out with at least 1.5 times the stoichiometrically required amount of methacrylic or acrylic acid relative to the amount of the metal oxides or hydroxides, and without addition of a solvent.
Patent DE-3225426-A1 (DE)
Title: Process and apparatus for the drying of veneers
Inventor: SCHULTE GERHARD DIPL ING
IPC: F26B23/10
Filed: 1982-07-07
Abstract: The invention relates to a process for the drying of veneers. Known processes, such as convective drying or contact drying, have specific problems as well as advantages. The advantages are to be united and the problems eliminated by the process according to the invention. According to the invention, the free water is removed in a first drying stage, drying thus being to about the range of fiber saturation, and final drying takes place in a second drying stage. Thereby a pre-drying without encasing is achieved in the first drying stage, e.g. by convective drying, and a flat veneer, free from shrinkage cracks, is attained in the second drying stage by contact drying below fibre saturation.
Patent DE-3227509-A1 (DE)
Title: Composite profile, especially for frames of windows, doors and facade elements
Inventor: ENSINGER WILFRIED DIPL ING
IPC: E06B3/263
Filed: 1982-07-23
Abstract: The invention relates to a composite profile, especially for frames of windows, doors and facade elements having a metallic inner part, a metallic outer part and at least one plastic insulating web which connects these parts together to form a thermal insulation bridge. In order to reduce the thermal conductivity of the insulating web it is provided according to the invention that this consists at least partially of foamed plastic with a porous or cellular structure.
Patent DE-3227525-A1 (DE)
Title: Friction wheel mechanism for driving a rotating or longitudinally adjustable part
Inventor: MUELLER WILFRIED DIPL ING
IPC: F16H13/02
Filed: 1982-07-23
Abstract: The invention relates to a friction wheel mechanism for driving a rotating or longitudinally adjustable part. It is the object of the invention to prevent the contact pressure of the friction wheels from being transmitted to the bearing and the guide system for the part to be moved. This object is achieved according to the invention by virtue of the fact that the forces are taken up by two equidistant rails (7, 10) firmly connected to the displaceable part. The invention can be used in precision drives, particularly those for image carriages, slides or compound tables of coordinate measuring machines or high-accuracy machine tools. <IMAGE>
Patent DE-3228326-A1 (DE)
Title: Self-propelled combine harvester
Inventor: HEMKER HEINRICH DIPL ING
IPC: A01F12/44
Filed: 1982-07-29
Abstract: The present invention discloses a self-propelled combine harvester with a threshing device consisting of a threshing basket and of a threshing drum, the threshing basket being followed by a conveying floor which guides the threshed grain mixed with chaff to the winnowing device. This conveying floor consists of a plurality of individual part floors which are arranged above and offset relative to one another, thereby forming a plurality of fall stages, through which air is blown. A separation of the chaff from the grain thus takes place even before the grain/chaff mixture has reached the winnowing device. A conveying floor designed in this way results in a higher throughput and better cleaning.
Patent DE-3231184-A1 (DE)
Title: Method for time-controlled data transmission
Inventor: HOLM JOERGEN DIPL ING
IPC: H04L12/407
Filed: 1982-08-21
Abstract: To increase the efficiency of the data transmission between a plurality of stations, a method is proposed which dispenses with the conventional selection of stations by a central station. According to this method, the transmitters of the stations connected to a data transmission system are controlled by sufficiently accurate and synchronised clocks. The transmission times are determined by absolute times or by relative values which are referred to real time.
Patent DE-3234197-A1 (DE)
Title: Device with an artificial penis
Inventor: TERSTEGEN HEINZ
IPC: A61H19/00
Filed: 1982-09-15
Abstract: The present invention entitled "device with an artificial penis" relates to a device which is used, in particular, for temporally limited, medically necessary application in the intimate field. According to Fig. 1, the device comprises a motor-driven lifting and pushing device connected to an artificial penis. At the same time, the device is constructed such that the subject to be treated can adjust the device individually so as to suit her personal circumstances and the intended application. It is thus possible to help the patient to overcome her disorder and thus to experience, for example, natural sexual satisfaction. <IMAGE>
Patent DE-3237389-A1 (DE)
Title: Crystalline aluminium silicates and gallium silicates, process for their preparation and their use as catalysts in the preparation of lower olefins
Inventor: KOTOKU YASUHIKO
IPC: C01B39/36
Filed: 1982-10-08
Abstract: The invention proposes a new class of crystalline aluminium silicates and gallium silicates having a crystal structure differing markedly from the conventional silicates with respect to the X-ray diffraction diagrams. The novel crystalline metal silicates are prepared hydrothermically by heating an aqueous mixture, which contains the starting materials for silicon dioxide, aluminium oxide or gallium oxide and alkali metal ions in defined proportions and additionally an aliphatic alcohol, for example n-propyl and n-butyl alcohols, in a defined amount. The crystalline metal silicates prepared in this manner are, in particular after conversion into the proton form by ion exchange techniques, usable as catalysts for the catalytic conversion of methyl alcohol or dimethyl ether in the gaseous form into lower olefins, such as for example ethylene and propylene with high yield and high selectivity.
Patent DE-3239504-A1 (DE)
Title: Process for the preparation of a stable perlite particle
IPC: C04B20/06
Filed: 1982-10-26
Abstract: Published without abstract.
Patent DE-3241825-A1 (DE)
Title: Tool-change chuck
Inventor: MIYAKAWA EIJI
IPC: B23B31/107
Filed: 1982-11-11
Abstract: The invention relates to a tool-change chuck for the interchangeable mounting of a change shank (23) which in turn carries a tool, e.g. a drill or a tap. The shank part (24) of the change shank (23), while being locked, can be inserted into a location bore (3) in a tubular part (2) of a spindle (1). A longitudinally displaceable sleeve (11) is slipped onto the tubular part (2), while a plurality of balls (10) are arranged in the tubular part (2), which balls (10) enter into the location bore (3) upon displacement of the sleeve (11) and are able to come out of the location bore (3) and, when they have entered into the location bore (3), interact with the change shank (23) while preventing the same from being pulled out. An ejector (17) constantly preloaded in the forward direction by a helical spring (19) is inserted into the bottom or inner part of the location bore (3). The ejector (17) displaces the change shank (23) in the forward direction during a change operation. An annular recess (21) is provided at the front end of the ejector (17) at its outer peripheral surface. The annular recess (21) merges into a bearing step (22) against which the balls (10) are able to bear with their radial inner parts in order to prevent the ejector (17) from sliding out unintentionally in the forward direction. <IMAGE>
Patent DE-3244204-A1 (DE)
Title: Housing for an automatic safety-belt reeling mechanism
Inventor: ERNST HANS-HELLMUT DIPL ING
IPC: B60R22/34
Filed: 1982-11-30
Abstract: The invention relates to a housing for an automatic safety-belt reeling mechanism which is made of plastic in order to save weight and cost. Force transmission takes place essentially by means of a bent wire part embedded in the wall. This bent wire part surrounds the shaft bores for force absorption and for force transmission is guided into the rear wall to the fastening bore. The plastic housing forms essentially the functional structure, whilst the embedded bent wire part takes over the load transfer. <IMAGE>
Patent DE-3245013-A1 (DE)
Title: Process for the drying of fibre material
Inventor: KARRER FRITZ
IPC: D06B5/12
Filed: 1982-12-06
Abstract: Textile fibre material 82 is dried after a dyeing or liquid impregnation in the treatment vessel 70. For this, the fibre material 82 is first predried, for which purpose a vacuum is applied to the vessel and air is conveyed through the fibre material. After this mechanical water extraction, finish-drying is carried out by boiling off the remaining residual moisture, for which purpose the pressure in the vessel is appropriately reduced and heat is supplied to the fibre material, this being possible by radiation, convection or high-frequency heating. <IMAGE>
Patent DE-3303183-A1 (DE)
Title: Paper machine
Inventor: DAHL HANS DIPL ING DR
IPC: D21F1/48
Filed: 1983-02-01
Abstract: The paper machine has an endless wire (1) for guiding a paper web to be drained, and a second wire (2) which is taken over guide rollers (11, 11a, 12) and which is guided in a drainage region (M) together with the endless wire (1) over at least one draining element (5, 6) against a separating roller (14) at which the two wires (1 and 2) separate. In the draining region (M), at least one contact roller (guide roller 11a) is provided which can be pressed via the two wires (1 and 2) against a guide surface (separating roller 14). By means of this arrangement, a drainage intensity enhanced as compared with prior designs is achieved on an advantageously short drainage length.   <IMAGE>
Patent DE-3305067-A1 (DE)
Inventor: REISS KURT DIPL CHEM DR
IPC: B41N3/04
Filed: 1983-02-14
Abstract: Disclosed is a sheet, foil or strip material comprising aluminum or an alloy thereof, which is first mechanically and then electrochemically roughened on one or both surfaces to produce the following parameters: (a) from about 60 to 90% of the surface comprise a basic structure, in which the arithmetic mean of the distribution of diameters Da1 of the pits is in the range from about 1 to 5 microns, (b) from about 10 to 40% of the surface comprise a superimposed structure formed of elevations having an average base F from about 100 to 1,500 microns2, in which the arithmetic mean of the distribution of diameters Da2 of the pits is in the range from about 0.1 to 1.0 micron, (c) the center line average roughnesses Ra of the entire surface are at least 0.6 micron, and (d) the contact area tpmi of the entire surface is not more than about 20% at a stylus working depth of 0.125 micron and not more than about 70% at a stylus working depth of 0.4 micron. Also disclosed is a process for the production of this material and offset-printing plates which comprise a layer of this material provided with a radiation-sensitive coating.
Patent DE-3305863-A1 (DE)
Title: Mobile sanitary unit
Inventor: TUST WERNER
IPC: A47K3/28
Filed: 1983-02-19
Abstract: The invention relates to a mobile sanitary unit, as shown in Figure 2, having a sealing closure, situated marginally on the floor side, between walls and floor. The floor rests on a peripheral frame constructed in the manner of a grid internally and having a slab lying on it. The joint between the rising walls (10) and the floor part (20) consists of a uniform GRP laminar part (30) reaching up to the frame edge (21), the narrow side (12) of the walls (10) lying marginally on the GRP wall composite. Arranged marginally above the floor slab (23) and the GRP part (30) is a U-section (11) for receiving the lower narrow side (12) of the slab (10). <IMAGE>