baber/WOPTO huggingface dataset:
Patent DE-3704208-A1 (DE)
Title: Method and device for removing metal ions from aqueous solutions containing them
Inventor: HECKMANN KLAUS PROF DR
IPC: C01F17/235
Filed: 1987-02-11
Abstract: In the method, the metal ions are electrolytically converted, in at least one electrolysis cell, to an oxidation stage in which they form anionic complexes, one or more cationic surfactants are added to the solution, and the precipitates formed in this process are floated with the aid of a gas and thereby removed from the solution. The object of the invention is to avoid, with less effort than in the case of the methods belonging to the prior art, interfering chemical reactions, such as reoxidation of metal ions etc., to ensure complete complexing and precipitation and to render any use of chemical correction reactions superfluous. This is achieved by causing a flotation gas to be evolved, continuously or discontinuously, simultaneously at least at one of the electrodes and by establishing the oxidation stage necessary for the precipitation of at least one of the metal-ion components at least at one of the electrodes.
Patent DE-3706686-A1 (DE)
Title: Goniometer
Inventor: PAPENFORT HEINZ
IPC: G01B5/24
Filed: 1987-03-02
Abstract: In order to determine the angular position of a sectional strut (brace) which is to be inserted into a three-dimensional latticework formed from profiled sections, for the purpose of excluding defective cuts when cutting the mitre (bevel) or the required notches, a goniometer is proposed which is formed from two graduated arcs (15; 16) which are pivoted in a base frame (10) with pivoting axes extending at right angles to one another to lateral sections (11.1, 11.2; 12.1, 12.2) which are situated opposite one another in pairs in each case. The lateral sections (11.1, 11.2) of one pair (11) of lateral sections are penetrated at the centre by the pivoting axis (S1; S2) of one of the graduated arcs (15; 16), and the lateral sections (12.1, 12.2) of the other pair (12) of lateral sections are penetrated at the centre by the other, and both pivoting axes (S1, S2) form a crossing point situated at the centre of the rectangle of the base frame (10). The outer radius of one of the graduated arcs (15; 16) is at most equal to the inner radius of the other, and the pivoting axis (S1; S2) of one of the graduated arcs (15; 16) is formed by a shaft which is provided with a centrally arranged sighting device (unit) whose sighting beam (20) emanates from the crossing point of the pivoting axes (S1, S2) and permits a bearing to be taken on the point of impact of the sectional strut which is to be inserted. <IMAGE>
Patent DE-3716535-A1 (DE)
Title: Composite panel and process for the production thereof
Inventor: HEIL HEINRICH
IPC: B29C63/04
Filed: 1987-05-16
Abstract: The invention relates to a composite panel (1) with rounded front edge (F) and to a process for the production thereof. To form the rounded front edge (1F), an L-shaped component (4) is placed against the front edge (2F) of the support panel (2) which forms the core of the composite panel (1), the first leg (4A) of which component is inserted into a recess (6) in the support panel (2) and the second leg (4B) of which component (4) is rounded outwards at the free end and extended slightly above the surface (20) of the support panel (2). To form a work surface (5), the surface (20) of the support panel (2) is glued to a cover panel (3) which is guided over the rounded end (4E) of the component (4) as far as the lower edge thereof and is additionally glued to the component (4). <IMAGE>
Patent DE-3717258-A1 (DE)
Inventor: GEBALD GREGOR DIPL ING
IPC: D03J1/00
Filed: 1987-05-22
Abstract: In a device for changing the warp beam of a loom by means of a lifting transporter, the lifting transporter is designed as a transport carriage for fully automated removal of warp beams from the loom and replacement by full warp beams. The driverless transport carriage is controlled by a host processor. Control connection between transport carriage and processor is effected by data transmission by means of infra-red or radio signals or by an inductive cable in the floor.
Patent DE-3718646-A1 (DE)
Inventor: SETZER HELMUT
IPC: B21B31/18
Filed: 1987-06-04
Abstract: The invention relates to a device for the axial shifting of rotating shafts, in particular rolling-mill rolls (1). The intention is to present a shifting device with which even high shifting forces can be reliably transmitted and which can be assembled rapidly and easily. The invention therefore provides that the axial shifting be effected by means of a clamping arrangement (3) which is in releasable operative connection with the roll journal (8) of a rolling-mill roll (1). The releasable clamping connection between clamping arrangement (3) and roll journal (8) is here of positively engaging design. It is particularly expedient if the clamping arrangement (3) is designed as a compact unit consisting of a clamping head (10), with at least one axially prestressed compression spring (13), which acts on the clamping discs (14) acting as clamping elements, the clamping discs (14) clamping a radially elastic clamping bush (15) to the roll journal (8), the clamping discs (14) being releasable from their clamping position by means of a hydraulic fluid counter to the action of the compression spring (13) and the clamping discs (14) being, on the one hand, supported axially against a housing part (10) and, on the other hand, braced against the compression spring (13) via an axially shiftable hollow cylinder (16), and the clamping bush (15) being provided in the region of the clamping discs (14) acting on it with an inner profiling (19) which, together with the complementary profiling (18) on the roll journal (8), forms the releasable clamping connection. 
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Patent DE-3720693-A1 (DE)
Title: Wall dispenser for gel-like or liquid personal hygiene products
Inventor: BAECKER WOLFRAM
IPC: A47K5/12
Filed: 1987-06-23
Abstract: In known wall dispensers, the form of the storage container is preset. It is not possible to use different commercially available bottles of personal hygiene products. The dispenser is pushed by the fastening spike (4) into the underside of a bottle of personal hygiene product made of soft plastic and is screwed tight by means of a thread. The dispenser is pushed by the wall bracket (5) onto the screw on the wall, by way of the groove (6). By pressing the fingers of one hand onto the pumping bubble (1), a metered quantity of liquid according to the pressure is delivered through the valve (2) into the inner surface of the hand. The wall dispenser is particularly suitable for the private sector.
Patent DE-3737472-A1 (DE)
Title: Backfilling apparatus for roadway support machines
IPC: E21F15/08
Filed: 1987-11-05
Abstract: To place the backfilling material during roadway driving, a backfilling apparatus is used which is connected in particular to roadway support machines. This backfilling apparatus with its discharge pipe is thus movable in the longitudinal direction of the roadway, to be precise it is expediently connected in a releasable manner to the roadway support machine. In this arrangement, the discharge pipe or the entire backfilling apparatus is allocated via a travelling carriage to a guide rail and is movable on the latter, the guide rail being curved in accordance with the curve of the support arch and being arranged with parallel axes at a distance from it. The backfilling apparatus or the discharge pipe can thus be moved around the support arch in such a way as to accurately follow the curve of the support arch in order to thus pump or blow the backfilling material uniformly and without re-setting or re-adjustment into the predetermined cavity. The guide rail itself is movable on the monorail conveyor rail in the same way as the entire roadway support machine so that it can also transport the backfilling apparatus at the same time. <IMAGE>
Patent DE-3800650-A1 (DE)
Title: Process for the preparation of foamed plastics
Inventor: STEFFENS JOACHIM DR
IPC: C08J9/12
Filed: 1988-01-12
Abstract: The invention relates to a process for the preparation of foamed plastics in which liquefied ammonia is employed as blowing agent.
Patent DE-3802798-A1 (DE)
Title: Process and apparatus for connecting structural elements, in particular purlins and wall crossmembers
Inventor: KAAL BERNARD
IPC: B21D39/03
Filed: 1988-01-30
Abstract: The invention proposes a process for connecting structural elements, in particular purlins and wall crossmembers, which is characterised in that the structural elements (1, 2) which are to be connected are each provided with at least one bead (3, 4) which is dimensioned such that the bead of a first structural element (1) engages into that of a second structural element (2), which is to be connected to the first structural element, and in that, once the structural elements have been fitted together, the bead of the first structural element is deformed or cut, at least in a sub-region, such that a positively locking connection between the structural elements is produced, mutual displacement of the structural elements counter to the direction in which the beads run and perpendicularly to the beads being prevented. In order to produce this special connection of two structural elements, use is made of an apparatus (20) which exhibits a head (21), which can be introduced into the bead (3) of the first structural element (1) and whose length is greater than the furthest point of the bead (4) of the second structural element (2), and an element (22) which is connected to the head and via which the torque which is necessary for deforming the beads can be transmitted onto the head (21). The head is provided with a slope (26), by means of which the lugs which have been cut out of the walls of the beads with the aid of the cutter (28) are bent over. <IMAGE>
Patent DE-3803791-A1 (DE)
Title: Arrangement for dispersing fog from a runway
Inventor: HENTING HANS
IPC: E01H13/00
Filed: 1988-02-09
Abstract: Arrangement for dispersing fog from a runway - having blowers which are arranged on both sides of the runway and each possess a blower drive motor. The blowers with their blower drive motor are arranged in the blowing-in pipes or in front of the blowing-in pipes of air conduits, which are closed off at the end faces and possess, along the runway, blowing-air outlet nozzles with a blowing-air outlet direction running parallel to the plane of the runway and substantially transversely to the direction of the runway. The blowing air is heated by the waste heat of the blower drive motors. <IMAGE>
Patent DE-3805016-A1 (DE)
Title: Centrifuge drum
Inventor: BRUENING PAUL DIPL ING
IPC: B04B1/08
Filed: 1988-02-18
Abstract: The centrifuge drum 1 is provided with a plate insert 5 whose riser ducts 8 are connected to the distributor 2 via the riser holes 4. In the riser holes 4 of the distributor 2, inserts 9 in the form of baffles 10 are arranged, which baffles suppress inlet swirling of the material to be centrifuged, in the inlet area of the riser holes 4. The same effect is brought about by baffles 13 in the discharge channels 11. It has become apparent that, as a result, the flow resistance of the riser holes 4 and of the discharge channels 11 is substantially reduced. The diameters of the riser holes 4 and of the discharge channels 11 can therefore be of smaller design. The diameter of the holes 7 in the plates 6 of the plate inset 5 can therefore be reduced and the number of plates 6 increased, as a result of which the clarifying area of the plate inset 5 available is increased. <IMAGE>
Patent DE-3805389-A1 (DE)
Title: Crankcase for a multi cylinder in-line internal combustion engine
Inventor: BAUDER ARMIN
IPC: F02F7/00
Filed: 1988-02-20
Abstract: A crankcase for a multi cylinder in-line internal combustion engine with flange-mounted oil sump 17 is designed so that a separate crank chamber 12 is assigned to each crank pin 5 and the connecting rods 7, 8 arranged thereon, which chamber is separated from the other crank chambers and connected to the oil sump 17 by a periodically opening valve 19. In this way a displacement of the air masses in the crankcase and the power loss thereby occasioned is avoided, largely preventing the occurrence of oil foaming. <IMAGE>
Patent DE-3807489-A1 (DE)
Title: Fungicidal interior plaster or filler
Inventor: HOELTER HEINZ DIPL ING
IPC: E04B1/72
Filed: 1988-03-08
Abstract: The invention describes a plaster layer, preferably for a room, which is characterised in that it is composed such that it has a pH of greater than 13 or less than 3.5 and an elastic natural substance is preferably added for the elastic shaping of the plaster layer composition and, depending on the degree of contamination, a duplex layer having a neutral separating layer in contrast to the first layer is applied either in strongly alkaline form with a pH of greater than 13 or in acidic form with a pH of less than 3.5.
Patent DE-3812189-A1 (DE)
Title: Quick-acting connector for pipes
Inventor: BAUER ALOIS
IPC: F16L41/12
Filed: 1988-04-13
Abstract: The quick-acting connector for pipes is intended rapidly to connect gas-channelling or liquid-channelling pipes, for example consisting of metal, plastic or even glass, in a frictionally locking and sealed manner. The aim is to avoid laborious screw-connections, welding connections or adhesive connections directly at the point of connection between the two pipes. The device avoids accidents, particularly also in the case of subsequent installation of pipe branches in gas pipes or lines which channel aggressive substances. The quick-acting connector for pipes can be mounted easily and more quickly, but also even more reliably. It is more environmentally friendly than anything provided by the prior art, in particular in plastic.
Patent DE-3813453-A1 (DE)
Inventor: GOTOH YOSHIHIKO
IPC: C07C17/269
Filed: 1988-04-21
Abstract: Chlorinated bisbenzotrifluoride derivatives of formula (1A) [wherein R<1> is -CCL2CCL2- or -CCL=CCL-] are obtained by subjecting trichloromethylbenzotrifluoride or dichlorofluoromethylbenzotrifluoride to dehalogenating coupling reaction in a hydrogen gas atmosphere. The reaction is carried out at a moderately elevated temperature in the presence of a palladium catalyst. Bis-(trifluoromethylphenyl) acetylene of formula (1B) is obtained by heating chlorinated bisbenzotrifluoride derivatives of formula (1A) at a temperature above 50 DEG C in the presence of a metal which acts as a dehalogenating agent, such as zinc or magnesium. <IMAGE>
Patent DE-3813925-A1 (DE)
Title: Valve
Inventor: MARSONER HERMANN DIPL ING DR
IPC: F16K31/122
Filed: 1988-04-25
Abstract: In order to achieve a very simple construction of a valve with a valve seat and a driveable valve element, particularly one for controlling a sample channel of a measuring cell for the analysis of liquid or gaseous sample materials, while at the same time ensuring a very high degree of leak-tightness and low wear, the valve element is formed by an elastically deformable diaphragm (4) which seals off an opening (3) in the wall (1') of the sample channel (1) to be controlled and can be pushed through the opening (3) into the sample channel (1) in the closing direction by means of a driveable piston (9, 9'), in which arrangement the wall (1') of the sample channel forms the valve seat (3') (Fig. 1). <IMAGE>
Patent DE-3815814-A1 (DE)
Title: Feeding device on a tool
Inventor: STOEGER LORENZ
IPC: B23P19/00
Filed: 1988-05-09
Abstract: If, by mistake, not only one but two screws are inserted into the screwing device by the feeding tube, the feeding tube is unable to perform a pivoting movement, so that the screwing device is blocked. Until now, in such cases it was necessary to screw off either the screw head of the screwing device or the mounting of the pivoting arm in order to remove the screws. In the arrangement according to the invention, the feeding tube is detachably suspended in the mounting in such a way that it can be inserted by its end section laterally, i.e. in the radial direction, through a cut-out opening into the mounting and withdrawn therefrom. For this purpose, there are formed in the inner wall of the remaining part of the mounting guiding channels which end in offset locking indentations, while in bores in the outer wall of the feeding tube there are seated bearing balls which project beyond the outer wall and via the guiding channels enter the locking indentations. A spring-loaded sleeve lies against the rear boundary edge of the feeding tube and secures the installed position.
Patent DE-3819436-A1 (DE)
Title: Process for the preparation of sulphur-free iron-oxide- and chromium-oxide-containing catalysts
Inventor: AMBACH EBERHARD DR
IPC: B01J35/10
Filed: 1988-06-08
Abstract: The application relates to a process for the preparation of sulphur-free iron-oxide- and chromium-oxide-containing catalysts having BET surface areas of 20 to 100 m<2>/g and in which more than 80% of the pore volume is in the pore radius range of 30 to 100 nm, an iron(III) oxide prepared from iron carbonyl having a mean grain size below 10  mu m and a BET surface area of greater than 50 m<2>/g and chromium(III) oxide having a mean grain size below 40  mu m and a BET surface area of more than 30 m<2>/g being mechanically mixed as powder or suspension and then tableted.
Patent DE-3822319-A1 (DE)
Title: Planetary power-shift transmission
Inventor: HILL FRANZ
IPC: F16H37/04
Filed: 1988-07-01
Abstract: The invention relates to a planetary power-shift transmission, particularly for motor vehicles, with an automatic transmission control system and with a plurality of coupled planetary gear sets and with (gear-change) clutches and (gear-change) brakes for the formation of different ratios. The basic transmission (base transmission) is in the form of a RAVIGNEAUX set, which is expanded by an additional external planet wheel in such a way that four forward gears (without overdrive) are possible. A rear-mounted range-change transmission allows the forward gears of the basic transmission (base transmission) to be doubled. The basic transmission (base transmission) can be expanded by means of (gear-change) clutches and (gear-change) brakes in such a way that independent 6- and 8-speed transmissions are formed. <IMAGE>
Patent DE-3822334-A1 (DE)
Title: Domestic vibratory appliance, especially electric razor
Inventor: BERTRAM LEO
IPC: B26B19/28
Filed: 1988-07-01
Abstract: The invention relates to a domestic vibratory appliance, especially an electric razor or a haircutting appliance, in the case of which movements of a bipolar, permanently magnetised rotor generates, in a stator arrangement which is excited by coils, a vibratory movement of a vibratory tool via a lever system (12b) which is coupled to the movements of the rotor (9), a restoring resilient force acting on the lever system (12b). To the rotor (9) there is fastened a lever (12) which can be moved together with the rotor about the axis (10) of the latter and is coupled by its free end (13), which projects beyond the rotor (9), to a working tool. The restoring resilient force acting on the lever (12) pretensions the drive, which is composed of the lever (12) and the rotor (9), in such a way that the rotor (9) executes oscillatory movements about its rest position. <IMAGE>
Patent DE-3822640-A1 (DE)
Title: Drive assembly of a motor vehicle with rigid connection between engine and axle transmission
Inventor: BOLL WOLF DR ING
IPC: B60K17/22
Filed: 1988-07-05
Abstract: In order to improve the crash behaviour of a vehicle which is equipped with a drive assembly in which the engine-transmission unit is rigidly connected by way of a connecting pipe to the axle transmission driving the wheels, the rigid connection between the abovementioned assembly parts is of flexible design. The flexibility of the connecting parts leading to a shortening of the rigid connection in the event of a vehicle impact may be designed so that in the event of shortening due to impact deformation energy is developed to absorb the impact energy. The rigid connection is formed by a pipe, which by way of toothed end areas engages in the drive assembly parts to be connected so that it is torsionally rigid but axially displaceable. In the event of a vehicle impact, the deformation energy can be absorbed in the area of the rigid connection between engine-transmission unit and axle transmission, especially in the connecting areas of the pipe with the engine-transmission unit and/or the axle transmission.
Patent DE-3824073-A1 (DE)
Title: Oil cooler
Inventor: KALBACHER KLAUS DIPL ING
IPC: F16N39/02
Filed: 1988-07-15
Abstract: An oil cooler has a housing through which water is conducted, and in the housing a tube stack made from disc-shaped flat tubes through the interior of which the oil to be cooled is conducted via oil ducts connected thereto. On its axial extent, each oil duct has guide elements which are shaped and directed in such a way that the incoming oil is fed at least partially firstly to the end region, adjacent to the oil duct, of the flat tubes and is led from there at right angles through the interior of the flat tubes, or the oil flowing out of the flat tubes is fed before it passes into the draining oil duct at least partially firstly to the end region, adjacent to the lastmentioned oil duct in the transverse direction, of the flat tubes and is introduced from there into the draining oil duct. The result of this is a pinpointed distribution of flow of the oil accompanied by uniform loading of the entire heat exchange surface and thus an improved cooling effect.
Patent DE-3831202-A1 (DE)
Title: Process for the mass coloration of synthetic polyamides
Inventor: KAUL BANSI LAL DR
IPC: C08K5/3447
Filed: 1988-09-14
Abstract: Process for the mass coloration of synthetic polyamides, characterized in that there are used dyes of the formula I or II <IMAGE> where the symbols R1 to R4, Me, m and n are each as defined in Claim 1.
Patent DE-3833243-A1 (DE)
Title: Control device for the control of a desired angular position of the output axle of a servomotor
Inventor: BAREN ARIE VAN
IPC: G05D3/14
Filed: 1988-09-30
Abstract: A control device for the control of a desired angular position of the output axle of a servomotor as a reaction to a control signal to be fed to the motor. A feedback loop for the mechanical conversion of the axle angular position into a feedback signal corresponding thereto is connected between the output axle of the motor and the control input. The feedback signal is compared with the control signal in a comparator for the maintenance of the desired axle angular position. The feedback loop consists of an inductive loop whose coil core is coupled, movable in the direction of its axis, to the output axle of the motor, so that a displacement of the coil core corresponding to the angular position of the output axle is attained and an induction voltage corresponding to the displacement is thus generated in the coil as feedback signal.
Patent DE-3838372-A1 (DE)
Title: Device for producing decorative and/or informative planar representations
Inventor: MOLL WALTER DR
IPC: G02B27/28
Filed: 1988-11-11
Abstract: A device for producing a decorative and/or informative planar representation has two linearly polarising polariser layers (1, 2) between which a liquid-crystal layer (3) having twisted-nematic liquid-crystal structures is arranged. Moving or rotating the one polariser layer (1) results in changing colour effects, subdividing the one polariser layer into planar regions of different polarising direction results in different colour textures. <IMAGE>
Patent DE-3840066-A1 (DE)
Title: Drilling device for making undercut drill holes
Inventor: FISCHER ARTUR PROF DR
IPC: B23B51/00
Filed: 1988-11-28
Abstract: Drilling devices for making undercut drill holes are known which have a conical shaped portion. In order to take into account the increased stress on the drill shank on account of the pivoting movements performed during the drilling operation and prevent increased wear of the drill shank of concave design, a wire-shaped element is enclosed in the drill shank in the area of the largest diameter of its concave arched portion.