baber/WOPTO huggingface dataset:
Patent DE-3819648-A1 (DE)
Title: Swirling pool for generating an unstable vortex in liquids
Inventor: BURCKHARDT JONAS
IPC: B05B1/34
Filed: 1988-06-09
Abstract: As an extension to the waterpools known in garden architecture, in which a constant vortex of water can be observed, this invention permits the observation and the interaction between centrifugal force and gravity and/or other forces acting on the water. According to the invention, this is achieved by a circular pool with a tangential inflow and central outflow, whose bottom contour narrows gradually towards the outflow in the manner of a funnel. The constantly inflowing liquid is initially held up above the outflow by the centrifugal force but then yields to the pressure of gravity, so that the vortex collapses and the pool empties completely; the process begins again. If the non-constant outflow from the pool is passed directly into a second, identical pool, the unstable moment is compensated there, so that in that case a constant vortex funnel can be observed. Thus, such pools can be arranged in cascades to form interesting water games as instructional and illustrative models, e.g. for garden installations.
Patent DE-3823883-A1 (DE)
Title: Cable cutter
Inventor: BIESTERFELDT HARALD
IPC: B03B9/06
Filed: 1988-07-14
Abstract: Published without abstract.
Patent DE-3825819-A1 (DE)
Title: Process for pressing and hardening moisture-containing mats during the manufacture of particle boards, fibreboards and similar wood-based material boards, and press designed for carrying out the process
IPC: B27N3/08
Filed: 1988-07-29
Abstract: Process for pressing and hardening moisture-containing mats during the manufacture of particle boards, fibreboards and similar wood-based material boards, in which process an endless mat is introduced into a continuously working throughfeed press with a pressing gap formed between pressing belts, and the mat is compressed and hardened in the pressing gap in accordance with a preset pressing-power diagram fixed along the pressing gap and also in accordance with a preset temperature diagram fixed along the pressing gap. The mat is introduced, on its way through the pressing gap, after a starting region of the pressing gap, into a steam-removal region in which the pressing-power diagram exhibits a pressing-power-reducing depression, the pressing power in the depression being reduced by at least 50% with respect to the pressing power before the start of the depression. After passing the depression, the mat is again exposed to a pressing power corresponding at least to the pressing power before the start of the depression. Presses for carrying out the process are also specified. <IMAGE>
Patent DE-3828431-A1 (DE)
Title: Frame saw
Inventor: KIVIMAA EERO MIKAEL PROF
IPC: B27B3/00
Filed: 1988-08-22
Abstract: The invention relates to a frame saw which is quick-moving and simple. A single set of blades (30) which is put together outside the machine is fixed to a light frame whose reciprocating movement is controlled by an actuating device (2). Guiding means (10, 20 and 5c) of the frame provide the saw blades with an expedient movement path, by means of which the stress peaks which stress the saw blades are avoided, and which is ensured laterally by means of guiding beams (7) and guiding pieces leaning thereon and blade guides (8). <IMAGE>
Patent DE-3828986-A1 (DE)
Title: Fastening element for connecting a load-lifting strap to a crane hook
Inventor: SCHWENGER WILLY
IPC: B66C1/18
Filed: 1988-08-26
Abstract: In a fastening element whose stirrup (1) to be put into the crane hook is designed in the form of a wire rope (3), the two ends of the wire rope (3), by means of a web (5) connecting them, are held at a distance from one another which is at least approximately as large as the width of the allocated load-lifting strap, so that the web (5) forms for the load-lifting strap a bearing surface (7) extending essentially over the entire width of the load-lifting strap. <IMAGE>
Patent DE-3829165-A1 (DE)
Title: Servicing traveller for a textile machine
Inventor: IGEL WOLFGANG DIPL ING
IPC: D01H13/00
Filed: 1988-08-27
Abstract: The invention relates to a servicing traveller (14), especially for supplying a ring-spinning machine (10). The servicing traveller (14) has an optical travel-direction indicator (29) in order to indicate its instantaneous travel direction (R) (Figure 1). <IMAGE>
Patent DE-3834024-A1 (DE)
Title: System for transmitting colour television signals
Inventor: HAUSDOERFER MICHAEL DR ING
IPC: H04N11/06
Filed: 1988-10-06
Abstract: In a system for transmitting colour television signals in which a chrominance signal is transmitted by carrier frequency outside the frequency range of a luminance signal, a number of auxiliary signals of constant amplitude and having different frequencies within the frequency range provided for the chrominance signal and a grey value are transmitted in a time segment not provided for the picture content. The frequency of a first auxiliary signal preferably corresponds to the frequency of a carrier provided for the transmission of the chrominance signal, a second and a third auxiliary signal exhibiting frequencies above and below the frequency of the carrier respectively.
Patent DE-3839232-A1 (DE)
Title: Process for the recovery of copper from the effluent of poly(phenylene ether) synthesis
Inventor: BRANDT HERMANN DR
IPC: C02F1/52
Filed: 1988-11-19
Abstract: Process for the recovery of copper from the effluent of poly(phenylene ether) synthesis, which includes in a first step the oxidative linking of phenols to oxygen in the presence of a copper-amine catalyst in organic solvents and, in a second step, the separation of the catalyst with the aid of aqueous solutions of complexing agents and/or cation exchange resins, characterized in that the effluent from the catalyst separation step is treated at a pH of 4 to 14 with a compound of the general formula I <IMAGE> in which R<1> and R<2> are hydrogen, C1-C20-alkyl, an aryl, alkylaryl or aralkyl group having up to 20 C atoms and R<3> is hydrogen, ammonium, sodium or potassium, and then separating off the resulting precipitate.
Patent DE-3840674-A1 (DE)
Title: Device for linear movement of a slide, especially in the case of a tube weapon
Inventor: LANGOWSKI ANDREAS
IPC: F41A9/44
Filed: 1988-12-02
Abstract: In the case of a device for linear movement of a slide through an operating stroke (H), especially of a cartridge feed slide in a tube weapon by the amount of a ready-loading stroke, this movement is intended to be carried out in a simple, space-saving manner. For this purpose, a drive bush (4) for the slide (6) can be displaced on a guide tube (2). A cylinder part (7) and a drive piston (10) in it are mounted such that they can be displaced in the guide tube (2). The drive piston (10) is connected to the drive bush (4) through a longitudinal slot (19) in the guide tube (2). In the rest position, the drive piston (10) is pushed into the cylinder part (7). During the movement from the rest position, it drives the cylinder part (7) such that said cylinder part (7) covers the longitudinal slot (19) with respect to the pressure region (17). <IMAGE>
Patent DE-3841783-A1 (DE)
Inventor: BURNEY CHARLES F
IPC: B60K26/04
Filed: 1988-12-12
Abstract: A cable 19 is attached to the pulley 16 and the vehicle's throttle lever 20 so that pulley rotation by a motor 7 may control throttle position. The stop 32 on the pulley 16 is biased by a spring 25 to engage a fixed stop 26 and with the stops abutting the cable 19 sets the throttle idling position. Cable end 18 slides in the pulley slot 17 if the lever 20 is operated manually. The pulley surface (45, Fig. 2) engaged by the cable 19 is part of a spiral so that the relationship between motor rotation and throttle movement is non-linear. <IMAGE>
Patent DE-3902658-A1 (DE)
Title: Piston compressor
Inventor: SPURNY DIETER ING GRAD
IPC: F04B39/00
Filed: 1989-01-30
Abstract: In its piston 5, the piston compressor has a cavity 23 which can be connected by way of a non-return valve 27 to the compression chamber 19 and is connected to the outside of the piston jacket between the first and the second piston ring 6, 7 by radial holes 28 through the said piston jacket. On the inside, the cylinder 3 has axial grooves 31 which begin at its upper end and which communicate with the radial holes 28 only in the top dead centre position of the piston 5. By means of this device, a large pressure reduction in the compression chamber 19 is obtained in the top dead centre position by pressure equalisation taking place from the compression chamber 19 to the cavity 23, thereby avoiding a negative driving torque after passing through the top dead centre position of the piston 5. <IMAGE>
Patent DE-3904691-A1 (DE)
Title: Process for producing drive rollers for paper in sheet or web form, and drive rollers produced by the process, for printers of EDP installations or automatic typewriters
Inventor: KNOOP KARL
IPC: B29D99/00
Filed: 1989-02-16
Abstract: The invention relates to a process for producing drive rollers such as are used for the printers of EDP installations or automatic typewriters for transporting the paper in sheet or web form. These drive rollers comprise a hollow shaft which has two collars arranged one behind the other in the axial direction and are covered by a layer of plastic. The diameter of these collars resting on the paper must be produced with great dimensional stability, since the paper is not transported exactly in the desired direction if the individual drive rollers have different diameters. This object is achieved according to the invention by the drive rollers being produced in the following process steps and in the following sequence: First of all, the rings are produced by the injection-moulding process and these rings are placed in a further injection mould. In this further injection mould, the hollow shaft is moulded together with the two collars as one part. During this operation, the collars enter into an intimate bond with the two rings.
Patent DE-3907547-A1 (DE)
Title: Connection between an opto-electronic semiconductor component and an optical waveguide end
Inventor: GAEBLER WOLFGANG DR ING
IPC: G02B6/42
Filed: 1989-03-06
Abstract: The invention is based on the object of creating a connection between an opto-electronic semiconductor component and an optical waveguide end, which is of simple construction, can be assembled automatically and is self-centring during assembly. According to the invention, the object is achieved in that the opto-electronic semiconductor component (2) which is located on a cornered plate (3) is placed into a cutout (4) of a holder (1) and pushed into a holding angle (6). The holding angle (6) has the same size as one of the angles of the cornered plate (3), so that the cornered plate assumes a defined position inside the holder (1). As a result, the opto-electronic semiconductor component is reliably positioned inside the holder. The cutout (4) inside the holder (1) is designed in such a manner that, due to the positioning of the cornered plate in the holding angle (6) of the holder, the opto-electronic semiconductor component (2) is arranged centrally to the circular raised edge (7) of the holder. The pin (8) having the optical waveguide end (14) is positioned on this edge (7) and thus aligned relative to the opto-electronic semiconductor component. The invention is used in the series production of electro-optical modules. <IMAGE>
Patent DE-3909019-A1 (DE)
Title: Rotofin fine-shaving, levelling, smoothing and finishing apparatus for the fine-working of wooden and plate surfaces
Inventor: NIEDERGUENZL JAKOB
IPC: B27C1/00
Filed: 1989-03-18
Abstract: An apparatus for the fine-working of wooden surfaces has a support (1), on which there is mounted a hollow shaft (2) which bears a rotor (5) fitted with cutters (6a to 6d), the cutting edges of which lie in a cutter cutting-edge plane perpendicular to the axis of rotation (7) of the rotor (5). In addition, a table is provided, the plane of which runs parallel to the cutter cutting-edge plane and which consists of a disc-shaped inner table (14) on a spindle (16) reaching through the hollow shaft (2) and of an outer table (15) arranged at a distance from the inner table (14), the cutters (6a to 6d), which rotate between inner and outer table (14, 15), projecting beyond the table. An extremely smooth, splinter-free surface is obtained by the fact that the cutters (6a to 6d) are arranged with a negative cutting angle ( gamma ) and an angle with respect to the axis of rotation (7) of the rotor (5) such that, when the rotor (5) is rotating, their radially inner end (31) runs ahead relative to their radially outer end (32). The spindle (16), on which the inner table (14) is arranged, is designed to be height-adjustable in order to be able to adjust the chip thickness and allow for varied pressures of the workpiece (28) on the cutter cutting edges and the inner table (14). <IMAGE>
Patent DE-3909225-A1 (DE)
Title: Machine, in particular woodworking machine
Inventor: KEUSCH SIEGFRIED
IPC: B23Q1/01
Filed: 1989-03-21
Abstract: The machine consists of a base, which is cast as a concrete block and is covered at the periphery with a plate, and of a functional unit with drive devices, control devices and the like and a work rest which is arranged on and fastened to the base.
Patent DE-3911049-A1 (DE)
Title: Electromechanical lock-picking appliance
Inventor: SKIBA FRANK-ROMAN
IPC: E05B19/20
Filed: 1989-04-03
Abstract: Electromechanical lock-picking appliance for the damage-free opening of lock cylinders. The appliance, no larger in circumference and length than an average commercially available electric torch, has, at the upper orifice, an exchangeable sensing needle (11) which is fastened in the receptacle (1) of a sensing finger (2). By means of an axially eccentric drive and as a result of the mounting in the bearing bush (12), a sensing needle (11) is set in vibration-free up-and-down movements. The sensing needle (11) is introduced into the locking channel of the cylinder plug, and as a result of the brief actuation of the rocker switch (12) at intervals the tumblers, which can be small frame tumblers or tumbler pins, are brought, under the simultaneous pressure of a clip, into a zero position, whereupon the cylinder plug can be rotated in the locking direction. <IMAGE>
Patent DE-3915319-A1 (DE)
Title: Quat. hydroxyalkyl polyethylene glycol amine ether cpds. - used as surfactant
Inventor: SCHENKER GILBERT DR
IPC: C09K23/18
Filed: 1989-05-10
Abstract: Quarternised hydroxyalkyl polyethylene glycol amine ethers of formula R1CH(OH)CH2(OCH2CH2)xN+R2R3R4- are claimed, where R1 = 6-20C alkyl, R2, R3 = 1-4C alkyl, R4 = -(CnH2nO)y-H, n = 2,3 and/or 4, y = 1-10, x = 1-30, x- = anion or an (in)organic acid). USE - (I) is used as surfactants.
Patent DE-3916289-A1 (DE)
Inventor: UMLAUF NORBERT
IPC: B21B39/02
Filed: 1989-05-19
Abstract: Dirt particles such as scale, abraded zinc and tin etc. are prevented from penetrating into the chain case in a stand (1) for drawing or braking metal strips or sheets (6), in particular for a plurality of narrow strips which are to be wound on in common with a separate braking action for each strip, between two mutually opposite continuously revolving chain systems (2, 3) driven by chain wheels, in which a belt (13) is arranged between at least one chain system (2 or 3) and the metal strip (6). 
<IMAGE>
Patent DE-3917682-A1 (DE)
IPC: B30B5/04
Filed: 1989-05-31
Abstract: An endless pressure or conveyor belt made of metallic materials has its ends linked together by a weld seam. In order to prevent the belt from elongating or stretching during its use and to avoid premature breakage due to ruptures in or at the weld seam, the ends (9, 10) of the belt have interlocking mutually offset tongues (11, 12, 13, 14,1 5) flush to all outer delimiting surfaces and with curved corners. The tongues are linked together by a weld seam that follows their entire profile.
Patent DE-3918025-A1 (DE)
Inventor: KUBITZA KARL-HEINZ DR ING
IPC: B03D1/22
Filed: 1989-06-02
Abstract: A flotation cell (1) is provided with a gasifying means and has a foam overflow (15) as well as an outlet (11) for solid particles not affected by the gasifying. For gasification, a rotation body (3) is arranged in the bottom (2) of the flotation cell (1) and forms with the bottom (2) an annular gap (4) for the inflowing pulp supplied by conduit (5). The rotary shaft (6) of the body (3) acts also to convey gas to the interior of the body, from which it discharges into the annular gap (4) via orifices and passages (10, 9). The width of the gap (4) is adjustable by raising or lowering the body (3). <IMAGE>
Patent DE-3920315-A1 (DE)
Title: Fuel injection nozzle
Inventor: BUERGLER LUDWIG DIPL ING
IPC: F02B23/06
Filed: 1989-06-21
Abstract: In a fuel injection nozzle with two rows of spray holes for internal combustion engines with direct fuel injection and self-ignition and swirling of the cylinder charge, the spray holes (23, 24), according to the invention, are arranged in pairs so that the jet axes (4, 5) enclose a surface which during the injection lies in the peripheral area (8) of the combustion chamber (1), for example the combustion chamber cavity in the piston, parallel to the direction of the aggregate flow (10) of the cylinder charge resulting from the quench area flow (13) and the swirled flow (12). The said injection hole arrangement results in favourable values with regard both to the engine power and the exhaust emission. <IMAGE>
Patent DE-3921218-A1 (DE)
Title: Lifting tackle esp. for hot galvanised iron - has cable passing through sealed guides to prevent damage to lifting mechanism from escaping emissions
IPC: B66D3/18
Filed: 1989-06-28
Abstract: Lifting tackle for treated goods, esp. for hot galvanised iron has a travelling trolley (6) with cable drum (14) from which the cable (16) runs to the goods via a slit-shaped opening (64) located in an intermediary deck (790) and having a replaceable seal (66,68). Guides located between the opening (64) and the drum transpose longitudinal movement of the cable, as it is coiled and uncoiled, into vertical movement in the direction of lift through the opening. The guide has a roller (24) mounted with a vertical swivel axis such that the longitudinal axis of the cable leaving the guide roller (24) is aligned with the vertical swivel axis. The roller is movably mounted on a bearing bracket (26) with hinge-like projections through which pass a vertical bearing bolt (34). ADVANTAGE - The sealing method protects the lifting tackle from damaging emissions arising from the galvanised iron.
Patent DE-3924984-A1 (DE)
Inventor: HAUFFE DIETER
IPC: C23C22/83
Filed: 1989-07-28
Abstract: In a process for the passivating rinsing of phosphate layers on metals on which a coating or an adhesive is subsequently to be applied, aqueous solutions which contain aluminium fluorozirconate possessing a molar ratio of Al : Zr : F of (0.15 to 0.67) : 1 : (5 to 7) and have a total concentration of Al + Zr + F of 0.1 to 2.0 g/l, preferably 0.2 to 0.8, g/l and a pH of 3 to 5 are used. The rinsing solutions may additionally contain at least one of the anions benzoate, caprylate, ethylhexanoate and salicylate in a total concentration of 0.05 to 0.5 g/l and may preferably be adjusted to the required pH with cations of volatile bases, such as ammonium, ethanolammonium and di- and triethanolammonium. Subsequent coating is advantageously carried out using a cathodic electrocoating finish, a powder coating or a high-solid coating having a low solvent content.
Patent DE-3926344-A1 (DE)
Inventor: BEHLER ANSGAR DR
IPC: C07C303/02
Filed: 1989-08-09
Abstract: A process for preparing light-coloured oleic acid sulfonates by continuous sulfonation of an industrial oleic acid with an oleic acid content of 65 to 85 wt.% and a linoleic acid content of up to 13 wt.% with gaseous sulphur trioxide in a molar ratio of industrial oleic acid to sulphur trioxide of 1 : 0.8 to 1 : 1.0, neutralization and hydrolysis of the acidic sulfonation product with aqueous bases and bleaching of the neutralized and hydrolysed sulphonation product, yields oleic acid sulfonates with Klett colour indexes not greater than 100.
Patent DE-4000955-A1 (DE)
Inventor: VOOSEN ERNST
IPC: E04D3/28
Filed: 1990-01-16
Abstract: 1. Light panel for polyurethane foamed roof elements, preferably in the cross-sectional shape of a trapezium with or without a covering layer according to DIN 18 164 and DIN 4102. 2.1 The roof elements produced from rigid or flexible form can be provided with an aluminium, steel or plastic covering. To introduce translucent regions, they are cut out at the desired point and profiled light slabs for sealing against rain and double-web slabs for heat insulation are inserted therein. In this method, leaks occur in the joint region. Even if additional sealing materials are used, small quantities of water are able to penetrate after a while as a result of capillary forces. Furthermore, there is the disadvantage that the profiled and insulated light panels consist of two parts. 2.2 A light panel with a high insulating action and at the same time absolute raintightness is to be produced. The light panel is characterised in that it is provided as a three-layered, loadbearing building element with a recess (4) in the form of a step on a supporting rib (5), descending towards the centre of the slab, of the trapezium element arranged at the connection end A and with a sealing lip (8) at the opposite connection end B. 2.3 The light panel is used for large-span roof coverings of self-supporting design. <IMAGE>
Patent DE-4004732-A1 (DE)
Title: Non-dazzle rear view mirror - has mirror plate of transparent plastics coated with reflective surface
Inventor: ALTMANN OTTO
IPC: B60R1/08
Filed: 1990-02-15
Abstract: The non-dazzling rear view mirror for a motor vehicle, has a mirror plate (3) of transparent plastics, such as  polycarbonate. The rear face of this mirror plate (3) is coated with a coloured reflective surface. The mirror plate (3) has a flat surface and either the mirror plate, or its reflective surface, or the mirror plate combined with the reflective surface have a light transmission factor between 0.6 and 0.77. The reflective coating or the mirror plate may be provided with a scratch protection coating (4). USE - Rear view mirrors.
Patent DE-4004830-A1 (DE)
Title: Holder for sets of small hand tools - has cavity divided into compartments by small ridges so that tools can be sandwiched by screw
IPC: B25H3/00
Filed: 1990-02-16
Abstract: The holder (1) is intended for sets of small hand tools such as punches which have a shaft section (5) greater in cross-section than that of the tool end. The holder has a rectangular section cavity (3) into which the tools can loosely slide. Running down the sides of the cavity are small ridges (8) dividing the cavity into compartments which each contain the shaft (5) of a tool and prevent it from tipping when a neighbouring tool is withdrawn. The dimensions of the compartments are such that the tool set can be sandwiched together and held by a clamping screw (10,11) at the end of the holder. USE/ADVANTAGE - Tools are easily inserted and removed. Tool set is held securely in correct order.
Patent DE-4006020-A1 (DE)
Title: Seat belt lock system in vehicle - uses Bowden cable to connect release button to lock
Inventor: NATZSCHKA ULRICH DIPL ING
IPC: A44B11/25
Filed: 1990-02-26
Abstract: The lock is for a seat belt system having a tightening device acting on the lock carrier.  It has a lock tongue and locking mechanism, and a release button acting on the locking mechanism. The release button (12) is arranged and secured separately from the movable lock body (11) and is coupled to the locking mechanism (26) of the lock by means of a Bowden cable (35). USE/ADVANTAGE - Safety belt arrangement in which after the completion of the tightening process the release button is in an accessible position for the occupant.