baber/WOPTO huggingface dataset:
Patent DE-3722227-A1 (DE)
Title: Apparatus for enriching water with oxygen
Inventor: HESTERMANN HORST DIPL ING
IPC: B01F13/00
Filed: 1987-07-04
Abstract: An apparatus for enriching water with oxygen by relative movement between the apparatus and the water and by vortexing the water is proposed. The apparatus has a plate arrangement arranged between floats transversely to the direction of flow and having a lower vortex plate tipping into the water, the plate surface of which is pierced with orifices for the passage of water, and having a top barrier plate with which a back-up pressure is exerted on the water. A plurality of plate arrangements can be provided, at a distance from each other, between the floats arranged in parallel, as a result of which a ladder is formed and, furthermore, it is possible to combine a plurality of ladders to form a field. The advantage of the novel apparatus is that enrichment of the water with oxygen is possible by simple means and without intervening in nature.
Patent DE-3723798-A1 (DE)
Title: Test apparatus for substances containing chlorine
Inventor: DULGER VIKTOR
IPC: G01N27/49
Filed: 1987-07-18
Abstract: A test apparatus (1) for substances containing chlorine has a housing (2) and an electrolyte chamber (5). The electrolyte chamber (5) is bounded by a membrane (6), contains two electrodes (8, 9) and is provided with a replenishing device (12) connected via a filler opening (17). In this way, the concentration of substances containing chlorine, in particular also of chlorine dioxide, can be measured in gases such as air. <IMAGE>
Patent DE-3733706-A1 (DE)
Title: Shaft coupling
Inventor: ECKEL HANS-GERD DIPL ING DR
IPC: F16D3/76
Filed: 1987-10-06
Abstract: A flexible shaft coupling comprising two inflexible and fluid-tight flanges (1, 6) which are fixed at the ends of the shafts to be connected, are rotatable relative to one another and together delimit an annular space (2) coaxially surrounding the axis of rotation. The annular space (2) is at least partially filled with a liquid and sealed by a dynamic seal (11) in the region of its inside diameter. The dynamic seal (11) is rendered inoperative by centrifugal force when the operating speed of the shaft coupling is reached. <IMAGE>
Patent DE-3735868-A1 (DE)
Title: Process for recovering pure ammonia from ammonia waste water containing hydrogen sulphide and/or carbon dioxide
Inventor: ROLAND KLAUS DIPL ING
IPC: C02F1/58
Filed: 1987-10-23
Abstract: The invention comprises the thermal recovery of pure ammonia from ammonia water containing hydrogen sulphide and/or carbon dioxide. The process is to be designed in such a way that it is not necessary to feed in pure water for the separation of the inert gas/ammonia mixture and for the ammonia scrub. This is achieved by, after distillative deacidification, passing the ammonia water to be processed or a part thereof in countercurrent to the inert gas/ammonia mixture. Another part of the deacidified ammonia water is used for scrubbing the ammonia removed in the thermal volatilisation of ammonia. The enriched ammonia water coming from the inert gas/ammonia separation is fed to the thermal volatilisation of ammonia and the ammonia water coming from the scrub is, after a large part of the ammonia has been driven off, fed to the distillative deacidification. The invention is used in the processing of waste waters which occur in the upgrading of petroleum and coal.
Patent DE-3740322-A1 (DE)
Title: Crosslinking agents for free-radical polymerisation
Inventor: CZECH ZBIGNIEW DIPL CHEM DR
IPC: C08F246/00
Filed: 1987-11-27
Abstract: The invention relates to salt-like crosslinking agents for the free-radical polymerisation of ethylenically unsaturated monomers, containing at least two unsaturated anionic groups and a polyvalent cation, where the crosslinking agent has the following general formula: <IMAGE> where R1 and R2 are identical or different and are H, Cl, F, Br or I; R3 and R4 are identical or different and can be a methyl group, a hydrogen atom, a halogen atom or -CN, m is an integer between 2 and 4, and K is a polyvalent central group containing a polyvalent metal atom from Group II, III, IV, V, VI, Ia, IIa, IVa, Va, VIa, VIIa or VIIIa of the Periodic Table, having the valency m + x, where x is an integer between 0 and 4, and some of the valences of the central atom can also be saturated by other atoms A, and to a process for the free-radical crosslinking of polymers prepared from ethylenically unsaturated monomers by means of this crosslinking agent, and to the use of the crosslinking agent.
Patent DE-3740460-A1 (DE)
Title: Self-drilling screw
Inventor: WEIDNER KARL
IPC: F16B25/00
Filed: 1987-11-28
Abstract: A screw for fastening boarding arrangements or the like at a distance in front of an underlying surface contains two threads which are of the same external diameter and the same pitch and are separated from each other by a thread-free portion. One thread portion extends from the tip of the screw, and the second thread portion reaches directly up to the screw head. The length of the thread portion directed towards the screw head is independent of the length of the screw.
Patent DE-3741655-A1 (DE)
Title: Method for producing welded joints
Inventor: MATTHECK C DR
IPC: B23K33/00
Filed: 1987-12-09
Abstract: A method for producing welded joints, consisting of a flute filled with welding deposit at the contact point of the parts to be joined, the flute being produced by bevelling the material edges from the welding side in the case of front joints or angled juxtaposition of the parts to be joined. After this, grooves, bulges or protuberances are introduced or formed on the sides of the flute or juxtaposed parts, which come into contact with the welding deposit or fuse with it. Finally, the flute is filled with molten welding deposit beyond the extent of the bulges or protuberances by at least once the width thereof.
Patent DE-3811291-A1 (DE)
Title: Circuit for protection against parasitic signals
Inventor: ZIERHUT HERMANN
IPC: H02H3/22
Filed: 1988-04-02
Abstract: The circuit for protection against parasitic signals, which is particularly advantageous for primary switched-mode power supply units, has a transistor mounted in emitter-follower mode on the DC-side outputs of a rectifier which is switched into the nonconducting state on appearance of spurious pulses because a Zener diode lying between the base of this transistor and earth becomes conducting on occurrence of a spurious pulse. This results in elimination of spurious signals which is very simple in terms of switching technology.
Patent DE-3811489-A1 (DE)
Title: Evaluation device for national-lottery ("Lotto") bets
Inventor: THIEL RUEDIGER
IPC: A63F3/06
Filed: 1988-04-06
Abstract: A national-lottery evaluation device (10) has a slider (20) which is guided displaceably above a panel (12, 16) which has a layout scheme from the national-lottery company. The slider (20) has a window (26) through which one column of the layout scheme can be seen at a time. By means of individual sliders (30) within the sliding panel (20) certain squares of the layout scheme can be covered so that only those squares of the layout scheme which correspond to the determined winning positions can be seen. The evaluation device allows a rapid and error-free evaluation of national-lottery betting games. <IMAGE>
Patent DE-3819724-A1 (DE)
Inventor: GERSTER STEPHAN
IPC: E06C7/08
Filed: 1988-06-10
Abstract: The invention relates to a method for producing rungs (10) consisting of profile sections and having supporting sections (12), for a step ladder having side rails, the end sections (14, 16) of the rungs which are connectable to the side rails possessing recesses (18, 20) for receiving the side rails. Rungs of the intended length are cut to length from profile members. Recesses (18, 20) for receiving side rails are then formed in the end sections (14, 16) of the rungs. Finally, the end faces (22, 24, 26, 28) of the supporting sections, facing the side rails, are rounded off at the corners and at least the end edges of the supporting sections are shaped to remove the angles. <IMAGE>
Patent DE-3820910-A1 (DE)
Title: Fibre-optic sensor system
Inventor: JOST MICHAEL
IPC: G01D5/26
Filed: 1988-06-21
Abstract: In a fibre-optic sensor system for motor vehicles having a plurality of sensors for physical variables, to which a light signal is fed via a common optical waveguide and which feed back in each case a light measuring signal adjusted to a corresponding measured variable via the optical waveguide to a central unit, each sensor generates a light measuring signal by reflection of at least a part of the light signal and the sensors occupy an individual, mutually different total light path which is composed by addition of the light paths for the light signal and the light measuring signal. In this way, a sensor system working in the manner of a multiplex is achieved, having a variable number of participants, with a simple construction and high reliability.
Patent DE-3823432-A1 (DE)
Title: Rail
Inventor: DETERDING MANFRED
IPC: B66C7/08
Filed: 1988-07-11
Abstract: A rail for trolleys is introduced. It has an opening for the purpose of facilitating maintenance of the current-collecting and control-signal-collecting parts of the trolley. By this means, access through the rail to the sliding contacts of the trolley is possible.
Patent DE-3823994-A1 (DE)
Title: Switching device for a roller platen
Inventor: KIELING REINER
IPC: B41J11/24
Filed: 1988-07-15
Abstract: In roller platens of typewriters or similar office machines, selective switch-over from discontinuous feed to continuous feed and back again is required. For this purpose, a multiplicity of switching devices are already known, which still all have a fairly complicated construction and are not ergonomically favourable to handle. These disadvantages are avoided according to the invention in that the rotary knob element (3) of the roller platen is arranged on the roller-platen shaft (2) so as to be secured against rotation and axially displaceable and has a coupling surface (35) which is arranged integrally and can be engaged with and disengaged from a coupling surface (36) on a gearwheel (7) which can be driven in the case of discontinuous feed. As a result, a simple switching device is provided, which consists of few parts, guarantees clearance-free rotary transmission, and requires only little effort by the operator.   <IMAGE>
Patent DE-3827479-A1 (DE)
Inventor: COETZER JOHAN
IPC: H01M50/191
Filed: 1988-08-12
Abstract: The invention provides an electrochemical cell 10 having a cell housing 12 divided by a separator 20 into two electrode compartments for an anode substance 40 and a cathode substance 38 and electrolyte 36. The separator is compression sealed to the housing to separate the electrode compartments from each other, by compression seals 44, 48. Each compression seal comprises a close-wound radially resilient metal spring and a sealing strip of ductile metal, which is backed by the spring. The spring is radially stressed by a force sufficient resiliently radially to compress the spring and sufficient to cause plastic deformation of the sealing strip. The invention also provides a housing for such a cell and a method of sealing the separator to the cell to the housing. <IMAGE>
Patent DE-3827725-A1 (DE)
Title: Power-assisted clutch and gearshift device
Inventor: LEMP NORBERT
IPC: B60W10/02
Filed: 1988-08-16
Abstract: Power-assisted clutch and gearshift device for a motor vehicle transmission (6) with a gear preselect and a gear change controlled by the driver by way of the clutch actuation on the clutch pedal (1) and a feedback for the driver when after shifting in the transmission (6) a gear is engaged. A safety device (2), which holds the actuated clutch pedal (position 12) when a gear is disengaged for the purpose of shifting gear in the transmission (6), is arranged on the clutch pedal (1) and mechanically connected to this. The clutch pedal (1) is held until a gear is engaged in the transmission again. The driver can then complete the engagement process in a known manner. The safety device (2) primarily comprises a non-positive and/or positive holding device, which clamps the piston rod (34) of the master cylinder (3) by means of a compressed-air cylinder. A non-positive and positive connection can also be accomplished primarily by positive means by suitable forming of the clamping element in order to reduce the necessary clamping force. <IMAGE>
Patent DE-3828450-A1 (DE)
Title: Powered hand tool, in particular angle grinder or the like
Inventor: MAIER PETER DIPL ING
IPC: B24B55/05
Filed: 1988-08-22
Abstract: A powered hand tool such as an angle grinder or the like has a machine head (3) with a tool shaft emerging at the bottom and an essentially cylindrical fastening neck (4) which encloses the tool shaft and to which a protective hood (7) can be rotatably and releasably fastened. The protective hood (7) contains a fastening ring (8) to be put onto the fastening neck (4) and a hood part (9) attached to the fastening ring (8). The fastening neck (4) has an annular groove (14) at its outer peripheral surface and at least one connecting recess (17), extending up to the annular groove (14), at the end annular-groove wall (16). Arranged on the inner peripheral surface of the fastening ring (8) is a holding projection (22) which can be put through the connecting recess (17) and can slide in the annular groove (14). The inside diameter of the fastening ring (8) can be continuously adjusted in such a way that the fastening ring (8), in the slipped-on state on the fastening neck (4), is retained in a self-locking manner in the rotary position set by turning manually. <IMAGE>
Patent DE-3832109-A1 (DE)
Title: Luminaire
Inventor: MUNZ JUERGEN
IPC: B62J6/04
Filed: 1988-09-21
Abstract: A luminaire is proposed which is particularly suitable for use as bicycle rear luminaire (rear light, rear lamp). The luminaire comprises a light-emitting-diode arrangement having a control device connected upstream. Light-emitting diodes are connected up or disconnected as a function of the input power.
Patent DE-3832231-A1 (DE)
Title: Calculating device with rods and running bodies displaceable thereon
Inventor: KLEIN CLEMENS
IPC: G06C1/00
Filed: 1988-09-22
Abstract: A calculating device is proposed having a right-angled frame (1, 2, 3, 4), rods (6) running parallel to one frame arm (1, 2) and running bodies (7) held displaceably on the rods, which can also be used for multiplication and division in the decimal system by means of the application of ten running bodies (7) on each rod. On one frame arm (4) running transversely, symbols (12, 15), which are stationary or can be displaced in the transverse direction, are mounted. For vertical use, the running bodies have braking elements, for example in the form of plastic discs (13). <IMAGE>
Patent DE-3836438-A1 (DE)
Title: Securing device for a folding floor
Inventor: CORDES WERNER
IPC: B62B3/14
Filed: 1988-10-26
Abstract: The subject-matter of the invention is a securing device for the folding floor, which can be folded up from a horizontal working position into a vertical, space-saving rest position, of a preferably movable transportation frame which, when not in use, can be collapsed, for the transportation and storage of packages. A clip, which protrudes into the movement space of the folding floor and can be pivoted about a pivot, is pressed to the side by one edge of the folding floor as the folding floor is being swung up and automatically returns into its original position after the folding floor has been pivoted past due to a restoring torque, it securing the folding floor, which now stands vertically, against pivoting back.
Patent DE-3836490-A1 (DE)
Title: Ship loading and/or unloading apparatus
Inventor: TAX HANS
IPC: B65G67/60
Filed: 1988-10-26
Abstract: A ship unloading apparatus is proposed which, by a simple conversion, can be reset for different methods of operation, namely a first method of operation in which preformed large packages are offered, and a second method of operation in which individual packages are offered.
Patent DE-3838578-A1 (DE)
Title: Circuit for driving cooling devices
Inventor: HORSTMANN UWE
IPC: G06F1/20
Filed: 1988-11-14
Abstract: Published without abstract.
Patent DE-3843343-A1 (DE)
Title: Film-viewing device
Inventor: SCHMID GERHARD
IPC: G02B27/02
Filed: 1988-12-22
Abstract: The invention relates to a film-viewing device, in particular X-ray-film viewing device, consisting of a housing (1) having a transparent or translucent housing wall (3), which can be illuminated by a light source arranged in the housing (1), onto which a film (4) to be viewed can be placed, the housing (1) having a switching device (5) assigned to the light source (2), in the case of which switching device, for achieving the object of creating a control for such a device which obviates mechanical control means, such as a switch, and therefore requires no passage opening in the housing, the housing (1) has a sealed lid of integral and closed construction which consists of the housing wall (3), which can be illuminated, and a closed circumferential housing edge (1b), a light-switching device (30) for the light source, which responds to the placing of the film (4), is arranged inside the housing (1). <IMAGE>
Patent DE-3902031-A1 (DE)
Title: Substituted azolylmethylcycloalkane derivatives, their preparation and use, and medicaments containing these
Inventor: KIRSCH REINHARD DR
IPC: C07D233/60
Filed: 1989-01-25
Abstract: Substituted azolylmethylcycloalkane derivatives of the formula I <IMAGE> in which the substituents and symbols have the meanings indicated, possess an anticonvulsive and anxiolytic action and at the same time have low toxicity and neurotoxicity.
Patent DE-3902602-A1 (DE)
Inventor: HOLZBACH WOLFGANG DIPL CHEM
IPC: B60C1/00
Filed: 1989-01-28
Abstract: The invention relates to an automotive pneumatic tyre having belt layers which contain at most 8 % by weight of plasticiser and having a tread divided into two layers, the outer layer thereof containing at least 25 % by weight of plasticiser and being softer than the inner layer. In order to prevent unfavourable effects on the service life of the belt structure as a consequence of plasticiser diffusion, it is proposed according to the invention that the inner layer of the tread is thicker over the axial edges of the belt layers than in the centre of the tyre and contains at most 10 % of plasticiser. <IMAGE>
Patent DE-3904684-A1 (DE)
Title: Method for the correction of the trajectory (flight path) of an explosive projectile which is fired from a tube weapon or is self-propelled, as well as a projectile on which the method is used
Inventor: BERTHOLD RAINER DIPL ING
IPC: F41G7/34
Filed: 1989-02-16
Abstract: A method is described for correction of the trajectory of an explosive projectile which is fired from a tube weapon or is self-propelled. In the case of this method, the current speed of the projectile is measured at least at times and is compared with a predetermined required speed corresponding with the required trajectory. The trajectory of the projectile is corrected by means of control nozzles, controlled explosive charges, braking and/or accelerating devices depending on the errors between the current speed and the required speed (speed differences). <IMAGE>
Patent DE-3908461-A1 (DE)
Title: Pesticides
Inventor: GSELL LAURENZ DR
IPC: A01N53/08
Filed: 1989-03-15
Abstract: Novel cyclopropanecarboxylates of the formula <IMAGE>  in which     R1 and R2 independently of one another denote F, Cl or Br and   R3 denotes C1-C4-alkyl.   Processes for the preparation of these compounds, compositions containing them, and their use in pest control.
Patent DE-3908711-A1 (DE)
Title: Device for measuring the permeability of textiles and other porous materials to vapour, especially water vapour
Inventor: HES LUBOS
IPC: G01N15/08
Filed: 1989-03-16
Abstract: The invention relates to a device for measuring the quantity of vapour which passes per unit time through a porous material, by measuring the quantity of heat which is necessary for evaporating the corresponding quantity of the solid or liquid medium from a vessel (1), whose opening is covered with a sample material (6). For measuring the heat, a surface sensor (4) for the heat flow is used for increasing the accuracy and sensitivity on the bottom inner surface (3) of the vessel (1). The peripheral wall (2) of the vessel (1) can, in this case, be insulated thermally by means of an insulation from the heating effect of the air which flows during measuring of the sample material (6). A porous layer (12) is applied to the surface of the surface sensor (4) for a uniform distribution of the evaporated medium. The vessel (1), and possibly its separable bottom (3), forms a part of a metallic block (7), which has a heater (8) and devices (9, 10) for measuring and regulating the temperature required. At least one part of a tubular conduit (13) passes through the metallic block (7), and connects the vessel (1) with a metering device (11) of the evaporating medium. The device is suitable mainly for objectivising the clothing-physiological properties of textiles. <IMAGE>
Patent DE-3917295-A1 (DE)
Title: Lightweight information display for exhibitions - which can be rolled up are made of e.g. photographic plastic coated paper bonded by flexible adhesive to strips of magnetic foil
Inventor: KIENZLE HERBERT
IPC: G09F15/02
Filed: 1989-05-27
Abstract: A thin display carrier material has a size of up to some square metres, a thickness of paper which can be readily cut with a knife, etc. and a flexibility to allow it to be rolled up in rolls of dia. less than some decimetres the material carrying its information on the one side. Its other face has a flexible coating of adhesive which combines the data-carrying layer with a magnetic film whose surface is at least 20% that of the data-carrying layer; and the magnetic film is located at least in the edges of the information-carrying layer. The information-carrying layer is a photographic paper made of plastic film or plastic-coated paper, the polymer being preferably PVC or polyethylene. ADVANTAGE - The products are light-weight and hence easily transported. They are easily repaired. They are particularly suitable for use in exhibitions, where they can be modified when necessary. They can be applied to e.g. curved columns.
Patent DE-3917876-A1 (DE)
Title: System for loading surgical instrument sets - has control unit connected to reader of bar codes on instruments and holder
Inventor: TASCHNER WOLFGANG
IPC: A61B90/96
Filed: 1989-06-01
Abstract: Each surgical instrument (3) carries a data carrier (4) which is read by a read head (5) connected to a control unit (7) via a data line (6). The ocntrol unit compares the signals produced by the read head with data stored in the control unit and/or activates a display. The data carriers can be bar codes on the instruments and the read head a bar code reader. The control unit has an associated data memory and the instrument holder also has a data carrier. USE/ADVANTAGE - For simple loading of the appropriate instruments into a surgical instruments set.
Patent DE-3919255-A1 (DE)
Inventor: FROBEL KLAUS
IPC: C07D405/04
Filed: 1989-06-13
Abstract: The present invention relates to 7H-dibenzo[1,5]-dioxocin-5-ones of the general formula (I) 
<IMAGE>
 in which R<1> - R<8>, R<14> and R<15> have the meaning given in the description, to their use in medicaments, and processes for their preparation, in particular their use in medicaments having a circulatory activity.
Patent DE-3923126-A1 (DE)
Inventor: KRANEFELD WERNER
IPC: H04R1/20
Filed: 1989-07-13
Abstract: Loudspeaker enclosure in the form of a preferably three-sided sprung pyramid narrowing towards the top, inside which a downwardly-directed woofer and an upwardly-directed tweeter are arranged to be invisible from the outside.