baber/WOPTO huggingface dataset:
Patent DE-3150269-A1 (DE)
Title: Novel poly-N,N-hydroxyalkylamides of polybasic aromatic carboxylic acids, their preparation and their use as cell openers in the preparation of elastic polyurethane foams
Inventor: HAAS PETER DR
IPC: C07D307/24
Filed: 1981-12-18
Abstract: The invention relates to novel poly-N,N-hydroxyalkylamides of polybasic aromatic carboxylic acids of the formula <IMAGE> in which n is an integer from 2 to 6, X is an n-valent C6-C20-aryl radical which may contain one or more hydroxyl groups, A is a C2-C6-alkylene group which may contain OH groups. There is also claimed a process for their preparation from polybasic aromatic carboxylic esters and dialkanolamines and their use as "cell-opening" components in polyurethane foam recipes in amounts of 0.1 to 10% by weight. By virtue of these additives, open-celled, non-shrinking foams are made available.
Patent DE-3205461-A1 (DE)
Title: Photodiodes having a resonator structure to enhance absorption
Inventor: BOERNER MANFRED PROF DR
IPC: H01L31/0232
Filed: 1982-02-16
Abstract: The invention relates to a photodiode which is provided with additional means for enhancing light absorption and which is suitable for integration with other electronic or electro-optical elements. The invention is based on the concept that, due to reflections at the boundaries of the diode, the light passes through the absorbing path repeatedly and the absorbed light intensity is thus enhanced. An optical resonator enhances the absorbed light intensity in the photodiode at wavelengths with small absorption coefficients to an extent which ensures, or indeed makes possible, the usefulness of the overall integrated circuit in that wavelength region.
Patent DE-3206227-A1 (DE)
Title: Optical and ophthalmic glass having a refractive index of >/=1.56, an Abbe number of >/=40 and a density of </=2.70 g/cm<3>
Inventor: GLIEMEROTH GEORG DIPL ING DR
IPC: C03C3/093
Filed: 1982-02-20
Abstract: A glass which is suitable as spectacle glass and has a refractive index of >/= 1.56, an Abbe number of >/= 40 and a density of </= 2.70 and is distinguished by good UV absorption, chemical resistance, suitability for chemical curing and suitability for production in tanks, comprises (in % by weight): 47-75 SiO2, 1-20 B2O3, 0-10 Al2O3, 0-2.5 P2O5, 3-15 Li2O, 0-6 Na2O, 0-6 K2O, 0-20 CaO, 0-15 MgO, 0-5 ZnO, 1-15 TiO2, 0-8 ZrO2.
Patent DE-3209966-A1 (DE)
Title: Mechanical driving device
Inventor: PESCH KASPAR
IPC: F16H7/08
Filed: 1982-03-18
Abstract: The mechanical driving device comprises a driving wheel and a driven wheel, a working strand and an idle strand of a ribbon-shaped element, for example a belt, a chain or the like, extending between these two wheels. Two pulleys rotatably mounted on a movably guided pulley carrier spread the working strand and the idle strand apart or press the strands together. The pulley carrier is therefore moved as a function of the forces prevailing in the strands. This fact can be exploited by, for example, fixing a brake block on the pulley carrier, the said brake block braking the driving wheel when the working strand is not under tension, with the result that automatic braking takes place when the driving device is stopped.
Patent DE-3211647-A1 (DE)
Title: Device on fences or the like which serves for triggering a signal
Inventor: SCHULZ HANS JOCHEN DIPL KFM
IPC: G08B13/12
Filed: 1982-03-30
Abstract: The invention relates to devices on fences which have oblique or transverse jibs connected to one another by means of tension wires. In order, in these devices, to ensure that they respond even to only slight effective forces, the jibs are fastened in an articulated manner in such a way that a signal can be triggered as a result of a pivoting of the jibs. For this purpose, the jibs are fastened via a hinge having a horizontal pivot axis. There is advantageously provided for the jib a shearing or pinching device, by means of which an elongate wire-like signal body can be influenced during the pivoting of the jibs.
Patent DE-3215470-A1 (DE)
Inventor: BELTER LOTHAR
IPC: A44B11/12
Filed: 1982-04-24
Abstract: The fastener for waistbands on trousers or skirts has a detent rail fastened to one part of the waistband and a slide displaceable on the rail. The slide carries a pivotal lever which extends beyond its pivot axis into a detent projection. The slide or the lever is detachably connectable to the other part of the waistband. The other waistband part is provided on its inside with a hook which is engageable with an opening in either the slide or the lever. The opening is coordinated with a slide surface that facilitates this engagement even without looking. In this respect the slide surface is the outside surface of the lever, and it is located ahead of, with respect to the engagement direction, and lower than the opening.
Patent DE-3218076-A1 (DE)
Title: Layered article
Inventor: SCHOBER OTTO
IPC: D04H1/498
Filed: 1982-05-13
Abstract: The invention relates to a layered article having two outer layers (1, 2) of a nonwoven fabric or a needlefelt and an active substance layer (3), for example of medicinal herbs, flowers, bark and the like, which lies on the outer layers (1, 2), the outer layers being joined to one another by needling with intermingling of the active substance layer and thus implanting of fibres (4) from the outer layer or layers (1, 2). <IMAGE>
Patent DE-3220922-A1 (DE)
Title: Power-assisted steering, in particular for motor vehicles
Inventor: LANG ARMIN
IPC: B62D6/00
Filed: 1982-06-03
Abstract: In a power-assisted steering system with variable reactive force, for the switching of the reactive spaces each reactive space (15, 16; 32, 34) is connected via a non-return valve (23, 24; 38, 39) to the working space, associated with the corresponding reactive space, of the servomotor (2). In order to vary the reactive force, a control element (22) is provided with choke point which can be varied as a function of the speed of the vehicle. The reactive spaces are separated from one another via this common control element (22) and via choke points (20, 21) and are connected to the return line to the container (4). <IMAGE>
Patent DE-3222185-A1 (DE)
Title: Apparatus for throwing back balls which have made contact with it
Inventor: ROSBACH THEO
IPC: A63B69/00
Filed: 1982-06-12
Abstract: The invention relates to an apparatus for automatically throwing back balls, which have made contact with it, having a deflecting surface. In order to provide a trainer wall for balls of large diameters, the invention provides a tube frame (1) which can be erected in a freely upright manner, is closed around its periphery and carries a net (4) which is fixed on the tube frame (1), in the inside thereof, in a resiliently elastic manner. <IMAGE>
Patent DE-3225412-A1 (DE)
Title: Mosquito trap with electrical connection
Inventor: SCHMELZ HELMUT DIPL PHYS DR RE
IPC: A01M1/20
Filed: 1982-07-07
Abstract: A mosquito trap (1) has a tacky surface (23) which is electrically heated (4) to a temperature corresponding to that of a warm-blooded animal and which disseminates an odour corresponding to that of skin.   <IMAGE>
Patent DE-3242378-A1 (DE)
Title: Dental instrument and device for producing it
Inventor: SCHNEIDER HANS KLAUS
IPC: A61C5/02
Filed: 1982-11-16
Abstract: The dental instrument which is particularly intended for root canal treatment comprises a treatment needle (1) terminating in a shaft (3) and an essentially cylindrical handle (5) which has an axial receiving duct (7) for the shaft (3) and can be fastened on the shaft (3) of the treatment needle (1) at a selectable distance from its tip (15) which is remote from the shaft. The handle is made of metal and is fixed to the shaft (3) by permanent radial deformation. A or an angled-off section (11) at the shaft end ensures connection fixed against rotation between the treatment needle (1) and the handle (5). A security cord (13) can also be pinched together with the shaft (3). Pincers are provided which fix the handle axially before the pinching operation therefor. <IMAGE>
Patent DE-3310411-A1 (DE)
Inventor: TEICH GEORG DIPL ING
IPC: H04N21/434
Filed: 1983-03-18
Abstract: Von einem Bewegtbildsignal (Videosignal) werden zur Einsparung von Übertragungskapazität nur diejenigen Teile eines Einzelbildes in digitaler Form übertragen, die sich gegenüber dem vorausgegangenen Einzelbild, soweit dieses dem Empfänger bekannt ist, geändert haben. Der Übertragungs-Kodiervorgang kann mit einer kontinuierlichen, durch die Datenrate des Übertragungsweges bestimmten Arbeitsgeschwindigkeit ablaufen, da für die Datenbearbeitung auf der Senderseite sowohl Änderungsentscheidungen als auch die zugeführten, unkodierten Bilddatenworte zwischengespeichert und nach einer variablen Verzögerung dem Kodiervorgang zugeführt werden. Eine kanalseitige Zwischenspeicherung kann sowohl beim Sender als auch beim Empfänger entfallen. Die empfangenen Bilddaten werden direkt dekodiert, und mit Hilfe der zugehörigen Adreßdaten erfolgt eine Aktualisierung der im Bildspeicher befindlichen Bildinformationen, die erst nach einer Verzögerungszeit - zwischen Null und einer Vollbilddauer - wiedergegeben werden.
Patent DE-3312085-A1 (DE)
Title: Slide magazine
Inventor: BRAUN JUN CARL
IPC: G03B23/04
Filed: 1983-04-02
Abstract: In a slide magazine having receiving chambers in the magazine body formed by partitions and retaining springs for transparencies which project freely into the latter, the retaining springs being jointly arranged on a connecting strip, side by side and spaced, a frame (13) with retaining springs (22) arranged on a longitudinal strip (15) thereof is provided for the secure and simple fixing of the retaining springs on the magazine body and can be inserted into a receiving space between a lengthwise wall of the magazine body (1) and shortened chamber walls (12), and can be locked on the magazine body (1). <IMAGE>
Patent DE-3313316-A1 (DE)
Title: Convertible settee having a plurality of padded parts
Inventor: LIEBERKNECHT ARTHUR
IPC: A47C17/165
Filed: 1983-04-13
Abstract: The invention relates to a convertible settee having a pull-out part 3 and a folding back-frame 4 behind a back cushion 5.2. Arranged behind said back cushion is a second back cushion 4.3. In the seating position, the first back cushion 5.2 stands on the seat cushion 3.7 and is arranged on a resting frame 5 which has the same height as the folding back-frame 4. An intermediate pull-out frame 2, on which the pull-out part 3 is arranged in a sliding manner, slides in guides 1.2 arranged on the side walls 1.3 of the bed frame 1, the resting frame 5 being arranged on the pull-out frame 2 in the lying position. <IMAGE>
Patent DE-3314571-A1 (DE)
Title: Light signal for toy railways
Inventor: HERZER KUNO
IPC: A63H19/34
Filed: 1983-04-22
Abstract: In the signal for toy railways, one of the many circuit boards extends transversely with respect of the direction of travel from the signal indication carrier down to the base of the signal, with the advantage that manufacture is made as simple as possible. <IMAGE>
Patent DE-3321230-A1 (DE)
Title: Drive system for a high-voltage power circuit breaker
Inventor: KRIECHBAUM KARL DR ING
IPC: H01H33/32
Filed: 1983-06-11
Abstract: The application relates to a high-voltage power circuit breaker having switching-off springs (7) per pole column and a common drive (2) which tensions the switching-off springs during switching on. In order to create circuit breakers of this type with short ON-OFF switching times, the drive (2) is designed as a pneumatic drive which is provided with a rapid venting device (15-17). <IMAGE>
Patent DE-3330265-A1 (DE)
Title: Road train
Inventor: HELMER BERND
IPC: B62D13/02
Filed: 1983-08-22
Abstract: The invention relates to a road train having an at least two-axle traction unit and an at least two-axle trailer which has a bogey with a first rotary connection assigned to the chassis of the trailer and a second rotary connection bearing the front axle and therebetween an attachment element to which a forked drawbar is coupled so as to be capable of swivelling about a horizontal pitch axis whilst a connecting rod is mounted on the second rotary connection so as to be capable of swivelling about a first vertical coupling axis and steers the front axle as a function of the bending angle between the longitudinal centre axis of the trailer and the centre axis of the forked drawbar. The present invention is based on the object of providing a road train of the type mentioned at the beginning with a coupling system which, at the rear of the traction unit, only has a commercially available trailer coupling for the forked drawbar of the trailer and which is capable of staying behind the rear of the traction unit when going round a bend without the need for additional steering and control elements between traction unit and trailer of the trailer front end, and of preventing an extensive lateral migration both at the start and at the end of the bend. This object is achieved according to the invention in that the connecting rod is of a U-shape and has two legs which are rigidly connected to one another via a vertical connecting axis mounted on the attachment element, the lower one of which legs bears at its end a first coupling axis and the upper one of which ... Original abstract incomplete.
Patent DE-3345395-A1 (DE)
Title: Fertilizer spreader
Inventor: AVERDIEK-BOLWIN HEINZ
IPC: A01C15/00
Filed: 1983-12-15
Abstract: Fertilizer spreader having a funnel-shaped supply container, in the lower region of which are formed closeable outflow orifices, through which the material located in the supply container is fed by discharge members arranged under the outflow orifices, an agitator member active at least in the lower region of the supply container being mounted on the fertilizer spreader. In order to provide a simple and gently working agitator for discharging granular discharge materials which flow sluggishly and which are easily crushed by pressure, the agitator member (11) is a pneumatic agitator, and a gaseous substance can be blown into the lower region of the supply container (2) by means of the agitator (11) (Figure 1). <IMAGE>
Patent DE-3400442-A1 (DE)
Title: Cuvettes for carrying out and projecting chemical experiments
Inventor: KUHNERT RUDI PROF
IPC: G09B23/24
Filed: 1984-01-09
Abstract: The invention relates to cuvettes, in which chemical experiments can be carried out and, with the aid of a photographic projector, at the same time can be demonstrated to a wider audience. The object of the invention is to reduce the effort in terms of equipment, time and chemicals in demonstrating or executing chemical experiments. According to the invention the object is achieved in that the particular shape of a reaction vessel or a whole apparatus is incorporated into cuvettes, this part of the cuvettes being transparent. The apparatuses incorporated into cuvettes can be used directly for projection without any further preparation, such as, for example, the assembly of conventional demonstration apparatus from individual components. Apart from demonstration purposes, they are also suitable for the direct execution of chemcal experiments.
Patent DE-3401335-A1 (DE)
Title: Vapour extraction hood with an automatic switching device
Inventor: HOMEIER MAX
IPC: F24C15/20
Filed: 1984-01-17
Abstract: In the case of vapour extraction hoods, expecially kitchen vapour extraction hoods, which have switching devices for switching different operating conditions, the individual switching devices are assembled to form a module which can be inserted as a plug-in unit into a frame which is mounted with the hood. Allocated to the switching devices is an automatic switching device which has a thermostatic switch or a heat sensor and is coupled to the extraction switching device. The extraction device has a run-on switching stage which is coupled to the automatic switching device such that the extraction switching device is not disconnected until the temperature has fallen below the set temperature range.
Patent DE-3406214-A1 (DE)
Title: Adjustable vibration damper
Inventor: WOESSNER FELIX DIPL ING
IPC: F16F9/48
Filed: 1984-02-21
Abstract: By means of the present invention an adjustable vibration damper is to be created, the stroke-dependent damping force of which can be easily adjusted. This is achieved in that an electric motor is provided in the compensating space of the vibration damper which turns a sleeve supported on the outer surface of the cylinder. This sleeve has at least one axially running duct, opened to the outer wall of the cylinder and closed to the compensating space, whilst a bypass cross section is formed by a plurality of radial bores arranged in the cylinder.
Patent DE-3411402-A1 (DE)
Inventor: BLAUHUT REINHOLD
IPC: F02D41/24
Filed: 1984-03-28
Abstract: 1. An arrangement for the intermittent actuation of a control member on an Otto engine, in which the beginning of the actuation operation can be controlled during each crankshaft period, wherein characteristic values are stored in address locations of a characteristic family storage means (18) which can be called up by rotary speed values and by other operating conditions,wherein during each crankshaft revolution angle pulse (line, 5, 21) which are synchronous in respect of crankshaft angle, and a reference pulse (line 9, 23) are produced, from which a trigger pulse for the beginning is derived, wherein an address counter (20) is connected with its reset input to the reference pulse line (23) and with its counting input to the angle line (21), wherein the characteristic family storage means (18) is connected on the one hand to the multi-bit address line array (22) of the address counter (20) and on the other hand to a multi-bit-line of an operating condition selector (19), wherein a time base counter (28) is connected to the cut-in input (26) of the characteristic family storage means (18) and prepares the storage means (18) during a predetermined time base, wherein a trigger pulse is applied to the reset input of a counter (12) for actuation of the control member and therein the O-output (15) of the counter (12) directly controls a control stage (16) for the actuating member, characterized by the following features : a) the actuating member is a valve control stage (16) for the injection system ; b) an overflow output (25) of the address counter (20) is connected to the blocking input (24) thereof ; c) the characteristic family storage means contains multi-bit storage words for representing the injection duration ; d) connected on the output side of the characteristic field storage means (18) is an intermediate storage means (13) into which the selected multi-bit storage word of the characteristic family storage means (18) is transferred upon expiry of the time base ; and e) the intermediate storage means (13) supplies a preload value for an injection counter (12) and a clock oscillator supplies counting pulses for the injection counter.
Patent DE-3411925-A1 (DE)
Title: Apparatus for separating an easily deformable product in the form of a sheet, a felt or the like from a coating
Inventor: VRIESEMA HEINRICH ANTONIE
IPC: B26D3/28
Filed: 1984-03-30
Abstract: The invention relates to a technique for separating a coating (2) from a light and deformable product onto which the coating (2) is stuck. 
<??>According to the invention, the product is arranged on a conveying device (3), the coating (2) resting on the conveying device (3). The conveying device (3) is designed to be gas-permeable. A suction apparatus (4) below the conveying device (3) holds the product on the conveying device (3), while cutting tools (5) separate the coating from the rest of the product by making a cut parallel to the conveying device (3). 
<??>This technique permits in particular separation of fibreglass felts from their coating (2) for re-use. 
<IMAGE>
Patent DE-3412296-A1 (DE)
Title: Hybrid circuit using a multilayer technique
Inventor: SCHMIDT CONRAD DIPL PHYS DR
IPC: H05K7/20
Filed: 1984-04-03
Abstract: In the case of this hybrid circuit which is to be used in the field of microelectronics, a metal substrate (2a, 6) with or without a thin insulation layer (2b, 7) is provided for hybrid mounting of discrete electronic components (1, 8). A plurality of plastic films (3, 4, 9, 10, 16) for accommodating conductor path networks and passive components both in discrete form and in thin-film technology are used as further levels of the multilayer device. As a result of the use of the metal substrate, which is optionally provided with the insulation layer, good heat dissipation of the heat losses occurring in the discrete electronic components is ensured, with good electrical insulation at the same time, while the plastic films which are provided with circuits make possible a high packing density. The metal substrate itself is preferably used as the base of a housing which surrounds the hybrid circuit. <IMAGE>
Patent DE-3415055-A1 (DE)
Inventor: GROOS HEINRICH
IPC: B23H7/08
Filed: 1984-04-21
Abstract: To increase the cutting performance of a wire electrode for electroerosive cutting, the surface of the wire electrode is provided with projections and recesses created by twisting the wire electrode of polygonal cross section about its axis.
Patent DE-3423231-A1 (DE)
Title: Applicator for applying cosmetic preparations
Inventor: MUELLER LIESELOTTE
IPC: A61M37/00
Filed: 1984-06-21
Abstract: In order to simplify the application of these cosmetic preparations to the face, two applicator heads 1, 2 are provided with a kidney-shaped cross-section, whose underside is curved in such a way that optimum adaptation to the surface of the face is possible. These applicator heads 1, 2 can be fixed on the face by holders 5, 6 and connecting sections 3 so that the user has her hands free during the treatment and, if desired, can always treat the same areas to be treated. <IMAGE>
Patent DE-3424664-A1 (DE)
Title: Ground-working machine
Inventor: FLECK ALFONS
IPC: A01D57/01
Filed: 1984-07-05
Abstract: In a ground-working machine (11) with mowing tools (13, 14) which are inserted in a movable housing (12) and which can be driven in rotation, the housing (12) is made virtually closed all-round and there can be introduced into this one or more air streams (31) which are directed at least partially onto the mowing tools (13, 14). This ensures that the mowing material is brought positively out of the region of the mowing tools (12, 13), and that grass, pushed down, for example by the housing (12), is erected by the air streams (31) immediately before being cut and can therefore be mown down cleanly. Furthermore, the mowing tools (12, 13) are cleaned during the mowing operation, and the danger of accidents is reduced by the housing (12) closed virtually all-round. <IMAGE>
Patent DE-3425805-A1 (DE)
Title: DC motor of disc-rotor construction, without a commutator
Inventor: AUER WERNER DR ING
IPC: G02B26/12
Filed: 1984-07-13
Abstract: A DC motor without a commutator is proposed, especially for driving an optical deflector. The motor is constructed as a disc rotor. A two-pole permanent-magnet ring 7 is arranged on the rotor. A winding on the stator side consists of two winding strands 9, 10, which can be driven successively and each consist of two approximately semicircular winding halves. In order to produce a constant e.m.f. in both winding strands 9, 10, the characterising data of the winding strand 10 are not identical to the characterising data of the winding strand 9. For example, the winding strand 10 has a higher number of turns. <IMAGE>
Patent DE-3427888-A1 (DE)
Title: Process for the immobilisation of biological material
Inventor: EGERER PETER DR
IPC: C12N11/08
Filed: 1984-07-28
Abstract: The invention relates to a process for the immobilisation of biological material by entrapment in polymerised compounds. Aqueous solutions or dispersions of the biological material are mixed with an aqueous solution of high molecular weight polymerisable compounds which are readily soluble in water and have 2 or more polymerisable functional groups per molecule and a molecular weight above 400. The mixture is subsequently polymerised.