baber/WOPTO huggingface dataset:
Patent DE-3913723-A1 (DE)
Title: Welding sheets of fibre reinforced thermoplastics - by welding lap joint under heat and pressure to give interlocking fibres and fused polymer
Inventor: WEISSFLOCH REINHARD DR ING
IPC: B29C65/00
Filed: 1989-04-26
Abstract: In welding together for faces of sheets of plastic, the sheets are clamped together under load and then heated until soft in the welding region after which they fuse together. The opposing areas to be welded have recesses formed in them such that an overlapping joint is created when they are placed together. After the areas to be welded are brought together, heat and pressure are simultaneously applied at right angles to the sheet plane. Appts. for welding consists of two opposing clamping-devices which form a gap between themselves and which can be moved relative to each other. A heating device extends along the length of the gap and is formed of two parallel fins perpendicular to the clamping plane.  The fins can be moved toward each other. USE/ADVANTAGE - For welding together flat components based in particular on fibre reinforced thermoplastic Sufficient weld strength, is obtd. even where higher processign temp. is required.
Patent DE-3916233-A1 (DE)
Inventor: MARKER HANNES
IPC: A63C9/08
Filed: 1989-05-18
Abstract: A safety binding for snowboards is to be provided, in which both ski boots are released synchronously in the event of a fall or of excessive loading acting on one or both legs of the snowboarder. For this purpose, a sole plate (2, 2'), fitted with releasable attachment devices for the ski boot, is provided for each of the ski boots. Said sole plate has catch recesses (3, 4) at any desired point on the opposite narrow sides, in which catch recesses there engages, on the one hand, a catch projection (5) which is movably or rigidly connected to the board (1), and, on the other hand, a catch projection (8) which is provided on a movable arm (9). Both catch projections (8) provided on the movable arms (9) are coupled to one another via a spring-loaded device (20) and, in the activated position, the spring-loaded device (20) holds the catch projections (8) provided on the movable arms (9) in the engagement position with the catch recess (4). When one of the catch projections (8) is disengaged, the other catch projection is advantageously released simultaneously by this ski binding so that both ski boots are released simultaneously. <IMAGE>
Patent DE-3919124-A1 (DE)
Inventor: HAJI-JAVAD MEHDI DR ING
IPC: B01D53/02
Filed: 1989-06-12
Abstract: The invention concerns a process for the removal of traces of pollutants from the exhaust gases from waste incineration plants. The invention calls for the gases, pre-cleaned in a gas purification plant to remove dust, acid gases (HCl, HF, SOx), heavy metals and NOx, to be freed of the remaining polycyclic hydrocarbons (e.g. dioxins and furanes) and heavy metals (e.g. Hg, Cd) by means of a combined adsorption/filtration process. To this end, the gases, at a temperature of about 70 to 160 DEG C, are mixed in a reactor (C4) with suitable adsorption agents (e.g. activated charcoal, molecular sieves or slaked lime) and subsequently passed through a fibrous filter (F2). The pollutants are bound to the adsorption agent in the reactor and subsequently in the filter cake on the fibrous filter.
Patent DE-3920856-A1 (DE)
Title: Remote removal of foreign material from heat of PWR exchanger - has preformed tube to position suction tube or gripper inserted through it
IPC: G21C17/003
Filed: 1989-06-24
Abstract: A process for the removal of mechanical items and solids from the base of the secondary part of a heat exchanger, has a preformed tube (21) inserted through a hole (16). The preformed tube (21) passes into an annulus (13) between the outer wall of the heat exchanger and a cylindrical guide tube (11) which has a gap (10) between its lower end and the base (3) of the secondary. A suction tube (22) or a gripper can be passed through the preformed tube (21) to remove foreign material. The outer end of the preformed tube (21) is grasped and turned to control the position of the suction tube or the gripper. USE/ADVANTAGE - Cleaning the base of the secondary part of a heat exchanger in a pressurised water nuclear reactor. The cleaner has the ability to reach the entire floor of the secondary part. Previous equipment using a single suction tube could clean only locally around the access hole.
Patent DE-3920995-A1 (DE)
Title: Halogen-free, flameproofed thermoplastic moulding composition
Inventor: ECHTE ADOLF PROF DR
IPC: C08L25/04
Filed: 1989-06-27
Abstract: A flameproofed thermoplastic moulding composition comprising   (A) from 30 to 90 % by weight of at least one halogen-free, thermoplastic styrene (co)polymer and (B) from 10 to 70 % by weight of cellulose, starch and/or sawdust particles coated with from 30 to 300 % by weight, based on their weight, of melamine phosphate, as a further, preferably the only, halogen-free constituent.
Patent DE-3926611-A1 (DE)
Title: Electronic run=up speed limitation esp. for drill - introducing brief delay with low-speed drive for centring purposes in prepn. for full-speed drilling
Inventor: FLIER GUSTAV
IPC: B23B47/06
Filed: 1989-08-11
Abstract: The motor (M) of an electric drill is supplied with current from two speed control circuits (1,2).  One circuit (1) is operative immediately to run-up the  motor for a drilling speed. of only a few rev/min during a delay (TV) of a few seconds until the other circuit (2) is actiavated. This allows the drill bit to be centred precisely for a preliminary drilling before the main hole is drilled at normal speed. ADVANTAGE - Easily mass-produced device reduces risk of tearing and blockage, and allows accurate centring for all kinds of holes.
Patent DE-3927289-A1 (DE)
Title: Welding of thermoplastic strip or sheet - in which resistance wires are located between strip edges which are protected by plastic film prior to welding
Inventor: ZICKERMANN HERBERT
IPC: B29C65/34
Filed: 1989-08-18
Abstract: Welding plastic strips or sheets to each other is carried out with the aid of resistance heating wires which are positioned between the overlapping edges of the palstic shees. The wires can be applied to the strip edges in the factory or later at the working location. In both cases a protective film is applied to the strip edges to prevent soiling or influence from u.v. light. The protective strip can if necessary cover the resistance wires if they are pre-located in the factory. Pressure can be applied to the two welding during welding by covering in sand or chalk or by creating a vacuum in the spaces between the wires. USE/ADVANTAGE - For welding together plastic sheets, typically in the building industry. Welding is achieved simply and quickly on site. Sheets can be covered over with sand or chalk before welding which prevents exposure to sunlight and consequent waviness.
Patent DE-3927453-A1 (DE)
Title: Permanent magnet machine with high efficiency transverse flux path - has high density airgap flux, low leakage and convenient construction for cooling of superconducting materials
Inventor: WEH HERBERT PROF DR ING
IPC: H02K21/38
Filed: 1989-08-19
Abstract: A rotating electrical machine with stator (J) and rotor (R) elements has ring shaped windings (Wa') concentric with the  machine's axis of rotation. Permanent magnets (Pv1 Pv2) of alter-nating polarity are set in the rotor (R) and provide the fixed field of the system. Soft iron polepieces (Pa') set up a flux in the airgap separting rotor (R) and stator (J) which is transverse to the direction of rotor movement and whose mutual reaction with the fixed field generates the output torque of the machine. USE/ADVANTAGE - Delivers increased power output per unit volume. Higher fux densuties in airgap obtainable within normal saturation limits of iron circuit. Overall iron and copper losses reduced . Superconducting materials using liq helium cooling can be conventiently employed. Weakage filds in interpolar regions are materially reduced by transverse plux path and shading devices.
Patent DE-3935787-A1 (DE)
Title: Spindle press with adjustable sliding clearance for ram - which is provided by hydraulic pistons which can be locked in required position
Inventor: CLAASEN KARL HERMANN
IPC: B21J13/04
Filed: 1989-10-27
Abstract: The press has a ram (2) which is driven by means of a screwed spindle which has a flywheel fixed to its upper end.  The ram (2) slides between the two pillars which form part of the press frame.  The clearance between the ram (2) and the pillars can be adjusted by means of hydraulic devices (20,20'). These hydraulic devices consist of a piston which can be moved towards or away from the surface of the pillars.  When this piston is in the position to provide the required operational clearance it can be hydraulically locked in that position. USE - Spindle presses.
Patent DE-3935901-A1 (DE)
Title: Doffer beam positioning - includes constantly monitoring motor rotary angle and beam position to give running corrections
Inventor: BRAND RUDOLF
IPC: D01H9/00
Filed: 1989-10-27
Abstract: To adjust the height position of a doffer beam, at a spinner, the total rotary angle of the motor drive is taken during the doffer beam movement, from the motor start when the doffer beam is in the start position, to give a proportional value A. The value A is compared with the preset proportional value B(asterisk) for a given doffer beam setting. If the two values A and B(asterisk) match the motor drive is stopped. The value C(asterisk) of the difference between the preset value B(asterisk) and the actual stopping position value A(asterisk) of the doffer beam is registered. On the next doffer beam movement, from the start position into the required setting, the motor drive is given a new preset value B(asterisk) for stopping, corrected by the difference value C(asterisk). ADVANTAGE - The technique moves the doffer beam into the required height setting with high accuracy.
Patent DE-3940050-A1 (DE)
Title: Conductive textile sheet of metallised glass filaments - for mfg. conductive plastics composite materials, comprise discontinuous metallised glass silk elementary filaments, etc.
Inventor: GROSS GISELA DIPL CHEM
IPC: H01B1/22
Filed: 1989-12-04
Abstract: Conductive textile sheet material consits of discontinuous metallised glass silk elementary filaments which are non-oriented and are consolidated by a chemical binder. The filaments are pref. metallised using an aluminium melt to give an aluminium layer of at least 3 microns thickness, the layer opt. coating half of each filament. The filaments pref. have a dia. of 13-30 (pref. 25) microns and a length of 25-100 (pref. 50) mm. USE/ADVANTAGE - The material is used for prodn. of conductive plastics (pref. thermosetting plastics) composite materials for electric, magnetic and electromagnetic screening and antistatic applications. The composites have electrical resistances of less than 1 x 10 power 8 ohm-cm.
Patent DE-3942792-A1 (DE)
Inventor: DAEMBKES GEORG DIPL CHEM DR
IPC: C07C29/80
Filed: 1989-12-23
Abstract: A process for the preparation of 2,2-dimethylpropane-1,3-diol by an addition reaction between isobutyraldehyde and formaldehyde in the presence of tertiary amines as the catalyst, hydrogenation of the reaction mixture, and subsequent distillation. Before the distillation, formaldehyde is added to the hydrogenation product to remove unwanted basic impurities.
Patent DE-4001669-A1 (DE)
Title: Control adjusting position settings e.g. of IC engine throttle - has retard device locking in position of adjusting drive appts.
Inventor: DENZ HELMUT DIPL ING
IPC: F02D41/22
Filed: 1990-01-22
Abstract: A control device provides adjustment capability for position settings (10), esp. rotary settings for adjusting angles of rotation of an i.c. engine throttle unit that determines the fuel injection direction.  An electric controllable adjusting drive appts. (11) is linked to the position setting.  A retard device (21) locks the position setting or the adjusting drive appts.  either directly or indirectly so as to guide the position setting into a first position, esp. into a safety running setting that releases a preset fuel injection, if the control device breaks down. To avoid breakdowns in making best use of the control device, an unlocking appts. (22) is fitted.  This is effective exclusively in the uninterrupted standard operation of the  adjusting drive appts. It produces an opposing force that  compensates for the retarding effects of the retard device. ADVANTAGE - Renders retarding adjustment ineffective during continuous normal running, minimises operational winding to reduce effect of battery voltage and external  temp. variations.
Patent DE-4004191-A1 (DE)
Title: Reducing acid losses in retardation plants - for sepg. acids and metal salts using acid-water-air boundary layer in column
Inventor: KLEIN KLAUS DIPL ING
IPC: B01J39/04
Filed: 1990-02-12
Abstract: Reducing acid loses in retardation plants for separating free acids and metal salts is claimed. The novelty is that an acid/water/air boundary layer is produced in the resin column. Before forming a new boundary layer, an existing layer is destroyed, this happens before each new cycle. At the end of a cycle or before re-introducing acid the resin column is dehydrated with compressed air, which is introduced into the upper section of the column. The amt. of water used is measured in such a way that the acid adsorbed by the resin is expelled from the resin. ADVANTAGE - Efficiency of the retardation plant is improved, eg. raising the percentage of recovered acids for reducing costs and environmental protection.
Patent DE-4005409-A1 (DE)
Title: Supporting device for plants - is for use in plant pots and has support surface or grid with spikes sticking into soil
Inventor: BERGMANN WINFRIED
IPC: A01G9/12
Filed: 1990-02-21
Abstract: The support for plants is designed to be stuck in the soil, esp. in plant pots or similar vessels. It consists of a circular, oval or polygonal frame (1) with one or more spikes (2) on one side to go into the soil. The oval or polygonal frame contains a number of wires or rods (3), crossing each other at right angles to form a grid or grating.  A solid surface may be used, divided into small areas (4) by ribs. USE/ADVANTAGE - The support is inexpensive, does not damage the plants, and ensures regular trouble-free growth of the plants in a flower pot.
Patent DE-4007634-A1 (DE)
Inventor: BUETTNER JOSEF
IPC: B62D61/12
Filed: 1990-03-10
Abstract: The invention relates to a suspension for a vehicle axle having a rigid axle beam, with at least one leaf spring arrangement on either side of the vehicle's longitudinal centre plane, which with its front end articulated on a pivot fixed to the chassis is braced with the axle beam at a distance from this, a supporting arm projecting in each case rearwards from the axle beam forming the bottom bearing of a pneumatic spring, on the upper side of which the chassis rests, and with an axle raising device. In order to achieve the greatest possible spring travel consistent with simple design and a low overall height, so that the vehicle can be used both as road vehicle and as rail waggon under widely varying conditions, the invention proposes that the respective pneumatic spring be supported upwards on the free end of a rocker arm, which can swivel preferably in one plane parallel to the vehicle's longitudinal centre plane about a pivot fixed to the chassis, and that the swivel position of the rocker arm be adjustable relative to the chassis by means of a control element. <IMAGE>
Patent DE-4007653-A1 (DE)
Title: Movement sensor esp. for bicycle tachometer - uses magnets on spokes generating alternating magnetic field w.r.t. fixed Wiegand element
Inventor: HAHLGANSS GUENTHER
IPC: G01P3/481
Filed: 1990-03-10
Abstract: A transmitter has its input electrically coupled to the output of the Wiegand element. A receiver is spatially and electrically separated from the transmitter. The latter (7) is composed entirely of passive components and includes an electric oscillating circuit excitable from a Wiegard pulse generated by the Wiegard element. The magnetic field generating arrangement (4,5) can be mounted on a vehicle wheel (1), e.g. on the spokes (3) of a bicycle wheel. The transmitter can be mounted on the fork (6) of the front wheel and the receiver (13) on the handlebars (14). USE/ADVANTAGE - Counting number of rotations of wheel for tachometer or antilocking system. Transmitter does not have to be made accessible and is insensitive to dirt.
Patent DE-4011461-A1 (DE)
Title: Electrical supply control for electric arc welding unit - avoids use of mechanical switch in signal circuit and has switch to select direct or alternating current supply
Inventor: FUTTERLIEB EHRHARD PROF DIPL I
IPC: B23K9/10
Filed: 1990-04-09
Abstract: Electric arc welding unit with a switch (U) for selecting direct or alternating current, has, in one design, in addition to two rectifiers (DW1,DW2), the novelty of a third rectifier (DW3) regulated by the control unit (ST). The rectifier has a transformer (T3) whose secondary connection is coupled via a diode (D3) to the secodnary connection of the welding current circuit and whose other secondary connection is linked to the secondary connections of two other transformers (T1,T2). The common secondary connections of all three transformers are joined to the cathode of the third diode rectifier (D3) via electronic switches (F1,F2). ADVANTAGE - The use of a mechanical switch with its inherent disadvantges, in the signal circuit is avoided.
Patent DE-4021913-A1 (DE)
Title: Salient pole machine rotor with two helical springs - coiled around screw which secures each pole spacer and winding former to freely-mounted coil support
Inventor: TAJIMA MASAAKI
IPC: H02K3/52
Filed: 1990-07-10
Abstract: Field coils (3) are wound on a conical former (5) between adjacent magnetic poles (1) which are sepd. by a holder (10) with two helical springs (9,11). These fix the position of the coils (3) and exert pressure on the former (5). The entire assembly is sepd. from the face of the rotor, ensures that the coils (3) are not subjected to different forces arising from variations of dimensions with ageing or heating. ADVANTAGE - Long-term dimensional changes are corrected automatically without need to dismantle the machine for tightening of the screws or renewal of the spacers.
Patent DE-4030229-A1 (DE)
Inventor: HURST KURT
IPC: G01B7/30
Filed: 1990-09-25
Abstract: The proposal is for an angle sensor, preferably of the contactless type, especially for use in motor vehicles, with a part (10) carried by the arrangement to be monitored and a measuring device (12) to determine the rotation angle (13,  phi ). The measuring arrangement (12, 14, 16) is hermetically encapsulated and has a magnetic coupling (22, 24) between the carried part (10) and the measuring arrangement (12, 14, 16).
Patent DE-4032119-A1 (DE)
Title: Absorbent pad for wearing during weak menstruation - is shaped to fit between small lips of vulva
Inventor: BORTZ GEB FREY
IPC: A61F13/15
Filed: 1990-10-10
Abstract: An absorbent pad (11,13,15) for wearing during weak menstruation has a triangular cross-section to enable it to be fitted between the smaller lips of the vulva. The pad may have rounded ends and rounded apex. - The pad is made of several layers of flexible material so that it easily conforms to the shape of the anatomy. The pad is intended for use outside the time of normal menstruation and is convenient for wearing under sports clothes or under a bathing costume.
Patent DE-4032686-A1 (DE)
Title: Roller bearing for sliding part of machine - has hollow roller with wall thickness chosen to provide deformation for zero play
Inventor: JURASCHKA ERNST ING GRAD
IPC: F16C29/12
Filed: 1990-10-15
Abstract: The machine has a sliding part (2) which slides relative to a fixed part (1) and is guided by three rollers (3,4,5) which roll in a guide groove in the fixed part (1). All three rollers have the same dia. and two of the rollers (3,4) are supported on roller bearings on spindles attached to the slide (2). The third roller (5) is hollow and has no spindle but is in contact with the other two rollers (3,4) and the upper surface of the guide groove. The wall thickness of this hollow roller is chosen so that when subjected to the operating load its deformation is such that there is no play between the rollers or between the rollers and the guide groove. USE/ADVANTAGE - Roller bearing for a slide with zero play.
Patent DE-4033139-A1 (DE)
Inventor: NERI FILIPPO
IPC: G01S7/38
Filed: 1990-10-18
Abstract: Radar signals A,B transmitted by a  DELTA / SIGMA  monopulse radar are received by antennae 11, 12 and are retransmitted after an appropriate delay 22,23 and phase shift 20,21 by antennae 12, 11 respectively. The delay will give a false range to the enemy radar, whilst the phase shift and "swapping around" the two signals distorts the wavefront to give false directional information. <IMAGE>
Patent DE-4034064-A1 (DE)
Title: Mixt. based on natural and styrene¨-butadiene¨ rubber for tyres - prepd. from rubber obtd. by incorporating carbon@ black in SBR latex during coagulation, improving wet-skid property
Inventor: STEVENS HENDRIK DIPL CHEM DR
IPC: B60C1/00
Filed: 1990-10-26
Abstract: Mixt. (I) for tyre running surfaces with at least limited suitability for winter use is prepd. by mixing together: (A) C black (II)-SBR rubber masterbatch or (II)-oil-SBR masterbatch obtd. by incorporating (II) in SBR latex during coagulation phase in rubber prepn. process, proportion of combined styrene in SBR being less than 20%; (B) natural rubber (NR); (C) conventional additives; and (D) amt. of (II) such that total (II) content on total rubber is over 50%. Specifically, (II)-SBR masterbatch contains 20-120 pts. (II) per 100 pts. SBR. (II)-oil-SBR masterbatch contains 20-120 pts. (II) and up to 70 pts. oil per 100 pts. SBR. Proportion of combined styrene in SBR in masterbatch is 14-17%. ADVANTAGE - Running surfaces have improved wet-skid properties without loss of abrasion resistance. (0/0)
Patent DE-4036521-A1 (DE)
Inventor: ADAMS JUERGEN DIPL ING
IPC: G02F1/133
Filed: 1990-11-16
Abstract: A device is described for visually checking standard liquid crystal displays (LCDs) for correct operation. For an LCD to be used in devices which must be calibrated, there are increased requirements with respect to the operational reliability. In accordance with the principle of influence due to coupling a test voltage onto defective points, interruptions in feed lines or segment electrodes interrupted on the glass supports, a case of a defect is made visible by a controllable flashing. The solution consists of coupling a test voltage (11, 27, 27, 51) onto the segments electrodes (1a, 21, 32, 41) by means of an electrode (10, 24, 34, 46) which is conductive throughout and which covers the rear of an LCD (6, 23, 33, 43). Application: display in taximeters, fuel pumps. <IMAGE>
Patent DE-4038950-A1 (DE)
Inventor: SONNABEND KARL HEINRICH
IPC: B21B31/32
Filed: 1990-12-06
Abstract: A piston-cylinder unit for producing and transmitting compressive forces onto adjusting elements which are guided so as to be slidable on a straight line. The piston-cylinder unit includes a push rod mounted so as to be capable of oscillating transversely of the direction of the compressive forces in a unilaterally open skirt-type piston. The push rod is slidingly movable from a centered position into an oscillating position. The centered position is determined by sealing members placed so as to face each other and mounted at an outer periphery of the push rod and an inner rim of the skirt-type piston. The push rod is movable into the skirt-type piston toward a fixed stop arranged in the skirt-type piston. The push rod is movable against the force of a spring element arranged at the bottom of the skirt-type piston.