baber/WOPTO huggingface dataset:
Patent DE-3016539-A1 (DE)
Title: Rounded end tile mfr. method - uses double extruded ceramic material strip with edges bent towards each other
IPC: B28B3/20
Filed: 1980-04-29
Abstract: The tiles are of beaver-tail shape. A ceramic mass in the plastic state is extruded from a nozzle in the form of a double flat strip, with the individual strips back to back and joined by ribs running in the extrusion direction, and bent over along one edge in each case. Pairs of plates, of the width of the tiles, are parted off from the strips. The bent-over edges on the strips are opposite each other, forming a supporting surface on extrusion onto a conveyor belt. Pairs of tiles of the desired shape are punched out of the strips by a tool acting from the side, after which they are tipped over onto their cut edges.
Patent DE-3017759-A1 (DE)
Title: Rectangular sail for surfboard - has forward tilting mast and spars from middle of mast to sail corners
Inventor: SCHAUB GEORG VON DIPL ING
IPC: B63B35/79
Filed: 1980-05-09
Abstract: The sail for a windsurfer has a long edge of the sail fitted along the mast (1) which is linked to the board with a flexible joint (6). The free corners of the mast are fitted with two spars (3,11) which run to the middle of the mast where they are secured with screw fittings. The spars run past the mast to a grip bar (8) by means of which the crew operates the sail. The sail shape and inclined mast provides simple control and good balance. The sail edge above the top spar can be unclipped from the mast to furl about the top spar for reefing. For storage the spars are unclipped and the sail folded about the mast. The spars are laid alongside the mast.
Patent DE-3018302-A1 (DE)
Title: Mode switching for video recorder - uses linkage mechanism to provide changeover between fast rewind and fast feed forward
IPC: G11B15/665
Filed: 1980-05-13
Abstract: The video tape recorder/player includes a simple mechanism for reliable changeover from fast feed forward to fast rewind modes of operation. The tape is transferred between spools and passes over a rotating head unit. Drive gears (2, 3) are mounted on the shafts of the cassette spool spindles. A belt and pulley unit transmits motion to a small drive gear (126) from an electric motor. With the fast feed (FF) engaged the gear is in mesh with an idler gear (129) and the left hand spool is engaged. When the rewind mode key (REW) is actuated, the roller is taken out of mesh and the main gear pinion engages the right hand spool. Whenever either mode is cancelled, a T elements with pads (132, 133) acts as a braking device.
Patent DE-3019331-A1 (DE)
Title: Material combination for vacuum evaporated thin film circuit mfr. - includes titanium, indium-doped cadmium selenide and vitreous mullite
Inventor: FISCHER ALBRECHT G PROF DR
IPC: H01L29/786
Filed: 1980-05-21
Abstract: A material combination is specified for the prodn. of vacuum evaporated thin film circuits through perforated masks, esp. for the operation of multi-component displays integrated with these. Evaporated Ti films are used for all metal connections, gate, source, drain and transparent electrodes. Predoped CdSe:In is used as evaporated semiconductor film, the In content being 0.1-3 mole;% before evapn. Vitreous Al2O3-SiO2 (mullite) films are used for the vacuum evaporated insulating layer for the gate insulator, X-Y-crossover insulator and insulating coating films. All these evaporated layers can be dissolved with HF, without flaking through 'Invar' (RTM) perforated masks. The number of materials used is minimised and better thin film transistors can be produced under optimised prodn. conditions.
Patent DE-3025832-A1 (DE)
Title: Air source heat pump system for heating buildings - has refrigerant charged bulb within air flow passing over outdoor coil for sensing ambient temp.
Inventor: SHAW DAVID NORTON
IPC: F25B1/047
Filed: 1980-07-08
Abstract: Air source heat pump system for heating a building comprises a refrigerant charged bulb within the air flow passing over the outdoor coil of the heat pump system to sense outside ambient air temp. The bulb supplies a variable satd. pressure which acts upon a bellows of a control unit whose opposite side is subjected via a second bellows to satd. suction pressure of the refrigerant returning from the outdoor coil to the inlet of the compressor. An electrical switch responsive to the pressure differential acts first to block unnecessary loading of the compressor and secondly to initiate unloading of the compressor. A further switch prevents excessive unloading of the compressor and ensures subsequent initiation of loading to prevent liq. logging of the evaporator coil. The satd. suction pressure of the compressor is never allowed to fall further than necessary to adequately heat the building and which prevents the satd. condensing pressure from exceeding that necessary to adequately heat the building under steady state conditions.
Patent DE-3029024-A1 (DE)
Title: PBX with one incoming line - with facility of call transfer to selected extension or paging through all extensions
Inventor: BRAUN WILFRIED ING GRAD
IPC: H04M3/54
Filed: 1980-07-31
Abstract: The application is partic. intended for a PBX which does not permit internal connection for speech between extensions. In the normal operation the incoming call is directed to the required extension by the caller dialling the correct number. If the person answering the call is not the person being called two courses of action are possible by the operation of a selector switch. If the person answering the call knows the present extension through which the called person can be reached then the call can be rerouted in the normal manner through the exchange by dialling the new number and using the automatic transfer facility. The selector switch is in the normal position for this function. If the whereabouts of the person sought is not known the selector switch position is changed. The call is again redirected through the exchange, but all extensions ring. The ringing is coded. When the called person recognises his or her code he or she can then take the call at the nearest or any convenient extension.
Patent DE-3033292-A1 (DE)
Title: Shearing press for thick steel wire - supports projecting wire portion to be cut via shock damper to reduce noise generated
Inventor: FINZSCH ROLAND OTTO
IPC: B23D33/08
Filed: 1980-09-04
Abstract: The shearing press is intended for cutting off lengths of large-dia. (e.g. over 12 mm) wire (e.g. in high-grade steel). It comprises a round-section channel through which the wire is fed and a blade with a semi-circular cutting edge which is movable across the exit opening of this channel. The wire portion projecting from this opening rests on a contoured support which is movable e.g. via a pivoted lever in the cutting direction against the action of a shock absorber. The arrangement considerably reduces the noise generated by the cutting operation.
Patent DE-3034658-A1 (DE)
Inventor: SCHAUMANN WOLFGANG PROF DR
IPC: C07J19/00
Filed: 1980-09-13
Abstract: Cardioactive cardenolide-bis-digitoxosides of the formula   <IMAGE> in which R1 is a hydrogen atom, a hydroxyl group or an acyloxy radical containing up to 3 carbon atoms, and R2, R3 and R4 each independently is a hydrogen atom, an acyl radical containing up to 3 carbon atoms, with the proviso that the compound contains at least one alkyl radical. The compounds exhibit desirable rates of excretion, primarily extrarenally.
Patent DE-3035125-A1 (DE)
Title: Antistatic protection for micro-packs after test - has integral copper flap ready tinned for bridging cut earthing links
Inventor: FRITZ OTMAR DIPL ING
IPC: H01L21/60
Filed: 1980-09-17
Abstract: A simple method of restoring the earthing links in micro-packs after test, for protection against high static voltage, is achieved by the use of a conducting tinned flap, which is part of the micropack and which is placed over the converging earthing links where they were cut. In order to restore the earthing of all the conductors, the copper flap is cut at one edge (8), hinged round the opposite edge (9), the other two sides not being attached, and the tinned flap is soldered down to the tinned ends of the converging conductors by the re-flow process. A gold coating may be used if cheaper forms of tinning are to be avoided.
Patent DE-3036668-A1 (DE)
Title: Connector for hot water tank - has pipe drawn with sloping weld seam for smooth inner surface
Inventor: REHBERG BRUNO
IPC: F16L55/115
Filed: 1980-09-29
Abstract: The bottom end of the connector pipe has inwards drawn lips to run tangential to the side of the tank and to enable a smooth weld seam to be applied. No sharp edges or trapped voids are obtained with the weld so that a protective coating can be applied inside the tank to prevent corrosion. The outer end of the pipe has a lipped flange onto which the sealing plate is bolted, with a similar shaped flange and with bolt holes. An O-ring seal is clamped between the pipe flange and is located in prepared grooves.
Patent DE-3039715-A1 (DE)
Inventor: BENEDIKT STEINLE DR PHIL
IPC: G01R15/20
Filed: 1980-10-21
Abstract: For the isolated conversion of a measurement current (Im) flowing in an electrical conductor (3) into a pulse sequence, the measurement current (Im) is linearly transformed into a magnetic measurement field (Hm). A magnetic-field comparator (7) is exposed to the magnetic measurement field (Hm) and a stochastic magnetic reference field (Hr) formed by a stochastic reference current (Ir). Magnetic-field comparators (7) can be based on various physical effects. It detects the zero crossing of the resultant magnetic field (Hm - Hr) and does not need to have a linear magnetic-field/output signal characteristic. <IMAGE>
Patent DE-3041732-A1 (DE)
Inventor: BREIDENBACH PETER DR
IPC: C08J3/18
Filed: 1980-11-05
Abstract: The present invention relates to solutions of isocyanato-isocyanurates based on mixtures of (i) 2,4- and/or 2,6-diisocyanato-toluene and (ii) 2,2'-, 2,4'- and/or 4,4'-diisocyanato-diphenyl methane in a molar ratio of (i) to (ii) of about 5:1 to 1:3, in plasticizers for polyvinyl chloride wherein the isocyanato-isocyanurates comprise about 1 to 50% by weight of the solution. The present invention also relates to a process for preparing these solutions which comprise partially trimerizing the isocyanate groups of the above diisocyanates using catalysts which accelerate the trimerization of isocyanate groups, the reaction either being conducted in the presence of plasticizers for polyvinyl chloride or the reaction product being dissolved in a plasticizer of this type, optionally after the separation of excess, unreacted diisocyanate. In addition, the present invention relates to the use of these solutions as adhesion-improving additives for coating compositions based on polyvinyl chloride. Besides improved adhesion, these compositions also demonstrate improved resistance to discoloration during thermal processing.
Patent DE-3042072-A1 (DE)
Title: Enhanced oil recovery by injecting emulsifying mixt. - of heat carrier, long chain carboxylic acid, and excess alkali
Inventor: MAKSIMOV VLADIMIR P
IPC: C09K8/592
Filed: 1980-11-07
Abstract: Oil is produced by drilling a number of wells into the oil bearing formation and injecting into them a mixt. of a heat carrier and a mixt. of naphthenic acids or synthetic carboxylic acids with excess alkali. The acids pref. have 15-30 C atoms and are added at a concn. of 0.5-6 wt.% of the heat carrier. Oil is desorbed from the formation and can be recovered at a prodn. well. The injection wells are pref. sloping, leading to the lower part of the productive formation, and well perforated at their lower ends. They may be used to form a channel, 50 to several hundredm long, along the productive part of the formation. More oil is recovered from the formation. The materials used are cheap.
Patent DE-3043856-A1 (DE)
Title: Cold setting alkali silicate binder for refractory mouldings - contains mixt. of alkali silicate(s), phosphate(s), boron cpds., silica and zeolite
Inventor: WEIAND WERNER ING GRAD
IPC: C04B28/34
Filed: 1980-11-21
Abstract: The binder sets at room temp. when it is mixed with water. The binder consists of a mixt. of various water-soluble alkali silicates; plus acid phosphates and/or boron cpds. which are not easily soluble in water; silica; and aluminium silicate ion exchange materials. The binder mixt. pref. contains 5-60% of Li-, Na-, and/or K- silicates; plus 5-50% acid phosphates of Ca, Ba, Mg, Zn, Fe and/or Al; and/or 5-50% of H3BO3, B2O3, borates or borophosphates. The binder mixt. pref. also contains 1-70%, esp. 5-40% silica; 1-5% aluminium silicate zeolite; and 0.1-80%, esp. 5-50% reactive alumina which forms a gel. All the components of the binder pref. have a particle size of 5 nm to 0.01 mm, esp. 10-1000 nm, which regulated the setting speed. The refractory prods. made using the binder have a higher strength than prods. made using conventional binders.
Patent DE-3044623-A1 (DE)
Title: Magnetic tape recording of digital signals - has multiplexing of signals to number of pick=ups to optimise data recording
Inventor: SOCHOR JOSEF DIPL ING
IPC: G11B15/14
Filed: 1980-11-27
Abstract: A magnetic tape recording system is intended to allow digital signals to be recorded at rates appropriate for video applications. The tape utilises angled information tracks and uses a number of pick-ups. is wound through 270 degrees around a rotating drum that carries four magnetic pick-ups. The tape follows a helical path as it contacts the drum. The signals to be recorded fed to a demultiplexer are distributed on three channels. Selectors are controlled to distribute the signals to the four pickups.
Patent DE-3046474-A1 (DE)
Title: Fork loader mounted root crop loading cage - has parts of base movable relative to ground, for soil removal
Inventor: KRINNER HERMANN
IPC: E02F3/40
Filed: 1980-12-10
Abstract: The appts. is used for harvesting sugar beet. It has a loading cage with an open bottom, rear and sides. The loading cage is raised, lowered and tilted by motor power, and pref. connected to the fork of a fork load truck. Parts (6,6') at least of the bottom (3) of the cage (1) are made so as to be movable in relation to the plane of the ground. The bottom can be a sieve-type vibrating bottom; or can consist of a series of parallel rollers, with the axis of rotation perpendicular to the longitudinal axis of the shovel and pref. with a drive (7) controlled from the driver's seat. Beet is more thoroughly cleaned while being picked up, with most soil removed.
Patent DE-3048532-A1 (DE)
Title: Variable friction damper for vehicle suspension - has electromagnetic damping brake excited by tachometer
Inventor: PIETZSCH LUDWIG DR ING
IPC: F16F7/04
Filed: 1980-12-22
Abstract: The friction damper (7-10) is controlled by auxiliary power generated by the movement of the vehicle (1) itself. The power needed to operate the frictional brake/damper is derived from an vehicle, auxiliary source and depends on the state of the i.e. its motion, its suspension, the number of occupants etc. The frictional brake/damper is an electromagnetic brake. A tachometer generates the current needed to operate the damping brake. The advantage lies in being able to vary the damper characteristics over a wide range during operation.
Patent DE-3103642-A1 (DE)
Inventor: DIEFENBACH HORST DIPL CHEM DR
IPC: C25D13/00
Filed: 1981-02-04
Abstract: A heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a crosslinking agent based on an organic compound which contains at least 2  beta -hydroxyalkyl ester groups. The binder mixture can additionally contain pigments, fillers, crosslinking catalysts, corrosion inhibitors and other paint auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by stoving.
Patent DE-3110011-A1 (DE)
Title: Infusion mixtures composed of medicinal plants and/or parts of plants
IPC: A23F3/34
Filed: 1981-03-11
Abstract: The invention improves the activity of infusion mixtures composed of medicinal plants and/or parts of plants by admixing with the plant constituents drugs and/or chemical substances whose content is such as to ensure very substantial therapeutic coverage of particular ranges of indications.
Patent DE-3111469-A1 (DE)
Title: Multi-stage compression cold-vapour machine with heat accumulator
Inventor: SCHWIND HERMANN PROF DR ING
IPC: F25B7/00
Filed: 1981-03-24
Abstract: A two-stage or multi-stage compression refrigerating installation is described, the characterising feature of which is the arrangement of a heat accumulator in the heat transmission between the individual stages. This heat accumulator, which is arranged between evaporator and condenser of the individual stages, can preferably also be a latent-heat accumulator which makes possible a stabilisation and optimisation of the operation by approximately constant temperature of the heat transmission. Even the temporally delayed setting in operation of its stages is brought about by the heat accumulation.
Patent DE-3115602-A1 (DE)
Title: Process for the preparation of polyamides and copolyamides based on 6-caprolactam
Inventor: KUBANEK VLADIMIR DIPL ING
IPC: C08G69/18
Filed: 1981-04-16
Abstract: The invention relates to a process for the preparation of polyamides and copolyamides based on 6-caprolactam, optionally mixed with lactams of  omega -amino acids having 4 to 13 carbon atoms, and derivatives thereof, by continuous, activated, anionic polymerisation of the lactams at above the melting point of the mixture of the monomer or monomers with the polymer under adiabatic or quasiisothermal conditions and subsequent polymerisation at below the melting point of the polymer. The process is characterised in that it is carried out in four steps: in the first step, water is removed from the lactam, usually in a thin-film reactor with an internal scraped surface. In the second step, the prepolymerisation and removal of water from the reaction mixture are carried out with stirring, while in the third step, the polymerisation is completed, likewise in a reactor with stirring device. In the fourth step, the post-polymerisation of the solid polymer at below its melting point is carried out.
Patent DE-3116645-A1 (DE)
Title: Device for detecting the respective position of the working piston of a pressure medium-actuated servo motor
Inventor: RYZNER CLEMENS
IPC: F15B15/28
Filed: 1981-04-27
Abstract: In order to be able to indicate end positions and intermediate positions of the working piston of a hydraulically actuated servo motor at the operating element, which is often arranged a long way from the servo motor, a valve controlled by the servo motor is arranged in its supply line, which valve influences the flow rate through the supply line, the change in the flow rate being detected at the operating element and converted into signals for the purpose of indicating the position. <IMAGE>
Patent DE-3118044-A1 (DE)
Title: Use of a film of polymer material
Inventor: BECKER FRITZ
IPC: A21B3/15
Filed: 1981-05-07
Abstract: It is proposed to use a film with, at least as a substantial component, a high-temperature resistant, anti-adhesive polymer material such as PTFE, possibly with a carrier, for example of glass fibre fabric, as supporting layer on baking trays for baking a wide variety of bread, cakes and pastries.
Patent DE-3119907-A1 (DE)
Title: Wood pulp, process for its production, and its use
Inventor: BREESE JOHN A
IPC: D21C1/00
Filed: 1981-05-19
Abstract: Cellulose pulp having a reduced tensile strength [sic] and excellent hydrophilic properties, which is prepared using a hydrophilic debonder of the general formula <IMAGE> in which: R1 denotes methyl, ethyl, propyl, hydrogen or hydroxyethyl, R2 denotes methyl, ethyl, propyl or (ethylene oxide)n, in which n represents an integer from 1 to 50, R3 denotes an aliphatic chain having at least 4 carbon atoms, R4 denotes (ethylene oxide)n or (propylene oxide)n, in which n represents an integer from 1 to 50 and X denotes Cl, I, Br, SO4, PO4 or CH3CO2.
Patent DE-3120095-A1 (DE)
Title: Height-adjustable suspension device
Inventor: GUTERMUTH PAUL
IPC: E04B9/20
Filed: 1981-05-20
Abstract: A height-adjustable suspension device (74) for false ceilings, which consists of two preferably identically constructed base elements (84, 86), between which the supporting elements (92, 94) receiving the false ceiling can be clamped, makes it possible to check whether pre-assembly or final assembly has been carried out by means of correspondingly arranged elements (116, 120) which can be knocked off or sheared off. In this case, the base elements with the received holding elements are arranged, after final assembly has been carried out, preferably non-positively and positively with respect to one another. <IMAGE>
Patent DE-3124851-A1 (DE)
Title: Holding device for a cord plug
Inventor: SATO TADASHI
IPC: H01R13/74
Filed: 1981-06-24
Abstract: A holding device for a cord plug for use on an acoustic apparatus comprises a bushing hole (2), which is constructed in the housing of the acoustic apparatus and into which a portion of the cord plug can be inserted. An engagement attachment (3) is arranged on the housing of the acoustic apparatus, close to the bushing hole. A locking or connecting mechanism (13, 14) on the plug can be connected to the attachment on the housing of the acoustic apparatus in order to connect the plug to the housing. <IMAGE>
Patent DE-3125878-A1 (DE)
Title: Circuit for generating a frequency-modulated sound subcarrier in a video recorder
Inventor: KLUTH HANS-JUERGEN ING GRAD
IPC: G11B20/06
Filed: 1981-07-01
Abstract: In a video recorder, a sound subcarrier which is frequency-modulated with the scanned AF sound signal must be generated during replay. The sound subcarrier is generated in an oscillator (4) which is controlled by a crystal oscillator via a phase locked loop (3, 5, 6). The AF sound signal is superimposed on the control voltage. This results in a sound subcarrier with particularly stable frequency. This is of importance, particularly in the case of two sound subcarriers for stereorecording.
Patent DE-3130359-A1 (DE)
Inventor: HUSSMANN PETER DR
IPC: B01D11/02
Filed: 1981-07-31
Abstract: According to the extraction method, for example for coffee, a plurality of extract solution quantities, separated from each other, having different concentrations, contained in a battery of containers (5), are successively mixed, each with a certain amount of base material, in a flat base filtering extractor (12), and thereafter are again separated. First, highly concentrated solutions are used and the low concentration solutions are used at the end. The relatively low concentration solutions are heated whereas the relatively highly concentrated solutions remain cool.
Patent DE-3133079-A1 (DE)
Title: Circuit arrangement for the improved reproduction of a close succession of echoes in an echo sounder
Inventor: DRENKELFORT HANS DR RER NAT
IPC: G01S7/527
Filed: 1981-08-21
Abstract: For the improved reproduction of a close succession of echoes of different intensity in an echo sounder, the gain is reduced as soon as the input signal exceeds a predetermined threshold. The duration of the gain reduction is determined by a preferably adjustable timing element which is triggered by a pulse produced when the threshold is exceeded and supplies a decaying output voltage controlling the degree of gain reduction.