baber/WOPTO huggingface dataset:
Patent DE-3007554-A1 (DE)
Title: Circuit matching HF transmitter or receiver to antenna - comprises changeover switch with variable capacitor and inductance with one acting as shunt
Inventor: IDSELIS MANFRED
IPC: H03H7/38
Filed: 1980-02-26
Abstract: The matchine circuit has two variable reactances. The first is between the HF source and the antenna. The second acts as a shunt path. A switch is in series with the second reactance and switches the second reactance in parallel with the antenna when in its first switch position and switches it in parallel with the series combination of the first reactance and the antenna when in its second switch position. The first reactance is an inductance and the second reactance is a capacitance, or vice versa. The advantage lies in being able to match the antenna simply by changing over the switch and adjusting the two reactances.
Patent DE-3011629-A1 (DE)
Title: Coated paper beaker with sealed thermoplastics lid - has weak filler material in hollow adjacent top of side wall seam
Inventor: SCHMIDT WERNER
IPC: B65D77/20
Filed: 1980-03-26
Abstract: Paper beaker of coated material has a lapped (vertical) wall seam which continues into the curled-over edge rim of the beaker. A thermoplastics cover is sealed onto the rim and the hollow corner between this cover and the rim in the region of the seam is filled with a thermoplastics material having a lower strength than the material with which the paper is coated. More specifically, this material has low viscosity when melted. Preferably it is a wax. This arrangement means that when the beaker is opened by pulling off the top there is less risk of the coating being pulled off the saturated paper or a saturated region of the rim kinking. A typical coating material (not claimed) for the paper is polyethylene.
Patent DE-3016862-A1 (DE)
Title: Fibre-reinforced plastic tyre rim - having high stiffness and low wt. combined by bonding together two moulded rings
Inventor: SCHINDLER RUDOLF ING GRAD
IPC: B60B5/02
Filed: 1980-05-02
Abstract: A tyre rim is made of fibre-reinforced plastics and carries a tubular tyre. The rim consists of two rings of curved sections which fit into each other, the outer ring takes the tyre and is semi-circular in section, the inner holds the nipple and is semi-elliptical in section; the two rings are bonded together at their edges with adhesive to form one hollow shape. The tyre used is pref. reinforced with high-stiffness aramide fibres and is bonded to the outer ring. This combination provides a very stiff construction when the tyre is inflated. The rings are produced first, trimmed, and bonded together with foam adhesive. They are made from a thick fabric core between two thinner fabrics, each layer being impregnated with resin and cured. Rim has high stiffness despite its plastic construction and hence low wt., it has no weak butt joint; good aerodynamic shape and its centre of gravity approaches its centre.
Patent DE-3018657-A1 (DE)
Title: Hot air circulating system for dutch oven - includes vertical ducts attached to sides, with restrictions to increase speed of flow
Inventor: ROBL MANFRED
IPC: F24H3/00
Filed: 1980-05-16
Abstract: The Dutch oven designed to burn a wide range of solid fuels including coal and wood waste etc., has sets of rectangular section ducts (1) attached to its sides. These can be of cast iron or fabricated steel and are vertical, with open bottoms to receive cold air and open tops to discharge warm air. Each duct has an upper section (21) behind which is an inner duct (22) which is heated by the combustion chamber behind it, with sloping ends at top and bottom communicating with the interior of the upper section. This gives a circulating flow of warm air, assisted by a restriction (18) just above the lower junction point (d). Another restriction (24) is incorporated in the top, at the discharge point (a). There is a refractory lining between the combustion chamber and the inner ducts.
Patent DE-3021369-A1 (DE)
Title: Crude tetra:fluoroethylene-per:fluoroalkyl vinyl ether copolymer - esp. for ram extrusion, has good particle size, flow, bulk density and particle stability
Inventor: SULZBACH REINHARD ALBERT DIPL
IPC: C08F214/26
Filed: 1980-06-06
Abstract: A granular, free flowing, non-melt processable crude TFE polymer powder contains TFE units and 0.004-0.075 mol.% perfluoroalkyl vinyl ether units of formula (I) CF2=CF-O-Rf (where Rf is perfluoroethyl-perfluoro-n-propyl or perfluoro-n-butyl) with a particle diameter d50 of 450-1400 micron, a bulk density of at least 570g/l, flowability of not greater than 5g/50g and a grain stability of not greater than 5.5g/50g. The prod. can be ram extruded directly without any pretreatment.
Patent DE-3026134-A1 (DE)
Title: Torque spanner with flexible rod - has tube parallel to rod connected to spanner head and coupled to slider, movable in long direction of rod
Inventor: HECKMEIER PETER
IPC: B25B23/142
Filed: 1980-07-10
Abstract: The flexible rod of the torque spanner has on one side a spanner head and on the other side a handle. It contains a contacting system which transmits an optical and/or acoustic signal, on attainment of a torque adjustable on a scale, the signal being transmitted via an electric current source. A retaining tube (2) is connected to the spanner head (4) in parallel spacing to the flexible rod (1). The tube extends along the rod and is fitted with a slider (6), movable in the rod longitudinal direction. On the side facing the rod the slider carries a contact strip (8), at a distance (b) from the rod, with the latter in rest position. Preferably between the rod and the strip the spacing is adjustable. The retaining tube may surround the rod with a radial clearance. It may have a long slot (5), axis-parallel to the rod and extending almost to the tube end. The slot edges carry a scale for different torque values.
Patent DE-3030953-A1 (DE)
Title: Die forge handling mechanism - has suspended travelling gear with lifting unit connected to cantilever carrying joined manipulating arm
Inventor: BACHMANN HORST ING GRAD
IPC: B21J13/10
Filed: 1980-08-16
Abstract: The handling mechanism is suspended from an inverted T-shaped beam and consists of a trolley with wheels travelling on the top surfaces of the T flange. The edges of the flanges are provided with toothed tracks engaging pinions driven by thrust mechanism comprising an electric motor supplied with power via drag cable. The trolley carries on its underside a structure with two column-type, vertical guide units, on which blocks are slidably fitted. The blocks are connected to a cantilever. The blocks work together with a lifting mechanism which moves up or down the blocks and over the cantilever, provided on its free end with a joint with horizontal axis, from which the supporting structure is suspended.
Patent DE-3034741-A1 (DE)
Inventor: HIRT MAX
IPC: E01H1/02
Filed: 1980-09-15
Abstract: A mechanical sweeper attached to a carrier vehicle comprises a sweeping assembly (2) which is attached laterally to the frame of a carrier vehicle (1) between the front and rear wheels. The sweeping assembly is attached as one unit to a carrier frame (26) which is movably connected to the vehicle in order to shift the sweeping assembly (2) into a position outside the lateral profile outline of the vehicle (1). In the case of a mechanical sweeper having an interchangeable body (6), which, on a body frame (8), includes devices for picking up and storing the dirt and is arranged as a whole above the rear wheels (4) of the carrier vehicle (1), the carrier frame (26) is fastened to the body frame (8) of the interchangeable body (6) so that it can be pulled out laterally. The lateral pulling out movement is facilitated by a supporting device which comprises a leg (11) fastened to the carrier frame (26), this leg being supported on the ground (9) by means of a support roller (12), on the side of the sweeping assembly (2) opposite the vehicle.
Patent DE-3037702-A1 (DE)
Inventor: AMSLER BRUNO
IPC: E06B9/302
Filed: 1980-10-06
Abstract: The tilting strand (5) for gatherable lamellar blinds is provided with metal elements for absorbing the tensile forces in the lowered state of the lamellar hanging as well as with connecting arrangements (32) for the lamellae. In order that the extension of the tilting strands remains as small as possible even in the case of great loads, it is envisaged that the tilting strand (5) is made in the form of a fabric band, the warp threads (33) of which, which support the connecting arrangements (32), are metal wires, and that the weft thread (34) is a textile material thread. <IMAGE>
Patent DE-3039177-A1 (DE)
Title: Environmental heat recovery system - uses air current through roof gaps drawn in by cooled-water shower
Inventor: SCHROEDTER ROLF DR ING
IPC: F24S90/00
Filed: 1980-07-15
Abstract: The system recovers heat from the environment via a roof surface, in which gaps are formed, through which a current of air flows from above, absorbing the heat generated in the roof by radiation and convection in the process. The air is drawn into a circuit by a shower mounted in a shaft and supplied with cooled water. The water absorbs heat from the air and is delivered into a trough, from which heat is extracted by the evaporator of a heat pump, and delivered by a compressor and condenser to a heating circuit. The cooled and thus dried air is returned to the roof surface and thus to the environment, after discharging the water onto the roof surface.The latter moistens the incoming air to saturation point and thus increases its heating capacity. The temp. of the heating water is raised further by a heat exchanger connected to the condenser of the first heat pump, and by a second heat pump.
Patent DE-3043880-A1 (DE)
Title: Roll lifter for transfer of drums or winding rolls - moves drum from one position to another axis parallel to it with mechanical lever system swivelled by drive
Inventor: FRITSCH WOLFGANG
IPC: B65H19/30
Filed: 1980-11-21
Abstract: The roll lifter is for the transfer of an empty drum or a winding roll from one position to another axis parallel to the first at a winding or unwinding station. One position is determined by a winding or unwinding bearing which can be adjustable and the other position by a carriage or frame movable in an axial direction of the winding roll. The bearing (7) is formed on a first lever (5). It has a swivel bearing relative to the pair of levers (1) connected by a coupling to a second lever (12) swivelled by a drive (13) in such a way that the first lever can be swivelled into a levering out position permitting the swivelling of the pair of levers past the drum pin (8).
Patent DE-3045456-A1 (DE)
Title: Oxygen absorption of polymers esp. for insulators measurement - by feed of measured oxygen vol. through precision valves to test chamber
Inventor: HOFFMANN KLAUS-WERNER
IPC: G01N7/04
Filed: 1980-12-02
Abstract: An appts. is described for measuring the oxygen absorption of polymers, where the polymer specimen is contained in an evacuatable, thermostatically controlled chamber and the reduced oxygen volume is replaced and measured at each measuring operation by means of a metering device. The metering device comprises a thermostatically controlled vessel of known vol., connected to a high-accuracy pressure measuring device; the vessel is connected by precision valves with an oxygen supply unit and also by a precision valve with the specimen chamber. Used in particular for testing of polymers to be used in insulation of electrical components, where the deterioration of the material under oxygen attack and temp. over long periods is of great importance. The appts. is accurate and simple in construction, contains no moving parts apart from the shut-off valves, and does not contain any Hg. It is suitable for automatic control and monitoring, partic. where a large number of measuring points are used.
Patent DE-3046192-A1 (DE)
Title: Un-encapsulated compact integrated circuit carrier - incorporated into automatic machine readable identity cards and has device joined by film conductors to contact pads through windows
Inventor: HOPPE JOACHIM
IPC: H01L21/60
Filed: 1980-12-08
Abstract: The device is fixed by a contact system on the support. The conducting paths are fixed at one end to the device and at the other to contact pads. The contact pads are on one side of the supporting plate and the device on the other. Contact is established through windows cut in the plate with the connecting pads of the device. The windows may be directly aligned with the connecting pads and the conducting paths joined direct or extended conductors overlapping the windows joined to the connecting pads by their underside by gold filament wire. The conducting tracks may be inserted through the windows and lapped over the underside of the device which is glued to the plate or lapped over the underside of the plate and connected to the upper face of the device. Unencapsulated integrated circuits are incorporated in e.g. identity cards submitted to daily usage in automatic machines where a minimum contact area of 1 to 2 mm2 is required. The small dimensions of the integrated circuit carrier allows a small surface area to be subject to mechanical constraints.
Patent DE-3100758-A1 (DE)
Title: Switching device
Inventor: MUELLER HELMUT ING GRAD
IPC: H01H37/48
Filed: 1981-01-13
Abstract: The invention relates to a switching device (2), especially for cookers having a glass-ceramic hotplate, for switching a signalling device and the circuit of the hotplate heating element, having a carrier (9) which is clamped in on one side and can be deflected by an expansion element (3, 3a) and to which two switching contacts (6, 7) are coupled which switch at significantly different temperatures. In this case, in order to keep the hysteresis of the two switching contacts within desired required values in each case at a low cost, the switching contact (7) for the lower temperature is coupled to the carrier (9) at a greater distance from the clamped-in end than the switching contact (6) for the higher temperature. <IMAGE>
Patent DE-3103264-A1 (DE)
Title: Street-watering slide valve
Inventor: STOLL JOHANN
IPC: E03B9/08
Filed: 1981-01-31
Abstract: Street-watering slide valve for actuating gas and water sluice valves with a telescopic linkage which is to be connected, at the lower end, to the slide-valve stem in a rotationally fixed manner and which - surrounded by protective tubes - terminates at the top in a surface box which is provided with a releasable cover. The telescopic portions of the telescopic linkage can be displaced freely with respect to one another in the longitudinal direction and the uppermost telescopic portion is suspended in the surface box in the same way as the upper portion of the protective tube, it being possible for at least the telescopic portion to rotate freely with respect to the surface box.
Patent DE-3104402-A1 (DE)
Title: Zip fastener with woven support band and method for the production
Inventor: STONE ERNEST ALAN
IPC: A44B19/34
Filed: 1981-02-07
Abstract: The invention proceeds from a zip fastener with woven support band and rows of closing links fastened thereto. In order, when sewing a zip fastener of this type onto an associated article, to ensure that the sewing process does not cause wavy deformations of the support bands, the invention teaches that the support band has edge zones in 1 and 1 construction, which are separated from each other by a central zone in 2 and 2 construction. The sewing seam is arranged in the central zone. <IMAGE>
Patent DE-3104449-A1 (DE)
Title: Electroacoustic transducer
Inventor: MATSUMOTO TOYOSAKU
IPC: H04R9/04
Filed: 1981-02-09
Abstract: In an electroacoustic transducer having a plate-shaped nonmagnetisable diaphragm, a flat oscillating coil is constructed on at least one side, which coil can be activated via electrodes arranged in the clamping areas with plate magnets. The oscillating coil is constructed in the form of an endless conductor track with parallel part tracks comprising a multiplicity of coil windings which are conducted as concentric circular arcs in a surface area covering more than half the diaphragm. The plate magnets arranged on both sides of the diaphragm have a corresponding pole pattern, extending along the circular arcs, with a polarity changing in the radial direction, the transition zones located between the poles extending opposite to the conductor track.
Patent DE-3104585-A1 (DE)
Title: Motor home
Inventor: BAUHOF KARL
IPC: B60P3/38
Filed: 1981-02-10
Abstract: The invention relates to a motor home based on a minibus or like vehicle, having a bed which can be extended, in the region of a roof cutout, by a movable bed board part and is situated on the roof of the basic vehicle and having benches which are arranged within the body of the vehicle and can be converted into beds. In order to make it possible to use furnishing parts of the vehicle fittings independently of the vehicle, it is proposed that the board which is used as the extension of the bed arranged on the vehicle roof be provided with extendable support feet and furthermore that the back rests, which can be folded up and removed, and form part of the seats, also be provided with extendable support feet such that they can be used as seats or reclining furniture, independently of the vehicle. <IMAGE>
Patent DE-3104802-A1 (DE)
Title: By-pass relief valve
Inventor: BEINE FRANZ
IPC: F16K17/10
Filed: 1981-02-11
Abstract: A by-pass relief valve for hydraulic systems with slide adjustment responding during excess-pressure conditions is proposed which requires little mounting space and spring space and works constantly and free of hysteresis in its response to excess-pressure conditions. To this end, the slide (1) contains in its interior a pilot valve (13) which opens above a limit pressure and at the same time relieves a damping chamber (11) in the opening direction of the slide (1). The piston-controlled pilot valve (13) is kept closed under normal conditions by a compression spring (6) supported on its piston (5) and in the interior of the slide. Entering fluid passes via a bore (7) to the top side of a stepped piston (4), through which the bore (7) passes, and forces the stepped piston (4) downwards, as a result of which the slide (1) closes the valve outlet (9). In the event of excess pressure, the pilot valve opens, and the slide (1) lifts from the valve outlet (9) so that more fluid leaves the valve. <IMAGE>
Patent DE-3112575-A1 (DE)
Title: Circuit arrangement for continuously controlling the brightness of signalling lamps
Inventor: LAUBE ROLF DIPL ING
IPC: G08G1/095
Filed: 1981-03-30
Abstract: These signalling lamps are used in traffic light systems. The aim of the invention is a circuit arrangement which automatically adapts the brightness of the signalling lamps to the ambient brightness. On the one hand, distinct recognisability of the signalling lamps is to be achieved without there being a blinding effect and, on the other hand, the life of the incandescent lamps is to be increased and electrical energy saved. The essence of the invention consists in that the incandescent lamps are driven with a lower power system voltage. To generate this low power system voltage, the values of the ambient brightness and the magnitude of the power system voltage are processed in a microcomputer. The microcomputer uses these values to program a programmable timing element which is started at the zero crossing of the power system phase and outputs a signal for driving the signalling lamps in the rising phase. Depending on the time programmed, the current flow angle in the signalling lamp changes and with it the brightness. The field of application is traffic light systems for controlling road traffic at junctions.
Patent DE-3113437-A1 (DE)
Title: Audio-tape cassette
Inventor: SCHMIDT HARRY
IPC: G11B23/087
Filed: 1981-04-03
Abstract: The invention relates to an audio-tape cassette having two rotatably mounted hubs (4, 5), which are in each case assigned to a roll of tape (11, 12) and onto which the audio tape (13) can be wound up by unwinding it from the other hub. The cassette housing has two cover parts (1), running parallel to each other at a distance corresponding approximately to the width of the audio tape and having a peripheral rim (2) projecting towards the other cover part. For sound transmission by means of a magnetic head on the tape recorder, the audio tape is taken past an opening (14) in the housing between the two rolls of tape (11, 12). On both sides of the opening (14) in the housing there is arranged in each case a fixed deflecting point (16, 17), at which the audio tape is deflected towards the facing hub. On each side, a deflecting element (18, 19), which is resilient in the plane of the cassette, protrudes between the deflecting point (16, 17) and the facing hub (4, 5) into the path of the audio tape in such a way that the tape is inflected at the deflecting element (18, 19), enlarging the angle of wrap of the fixed deflecting point (16, 17), and the resilience is directed towards the tape. The resilient deflecting element (18, 19), acting on one side against the audio tape, is mounted on a bearing pin (20, 21), protruding from the cover part, and is supported on the other side against the peripheral rim (2) of the cover part. The bearing pin (20, 21) is formed by a pin which is present in any case and previously served as a deflecting pin. <IMAGE>
Patent DE-3121805-A1 (DE)
Title: Internal combustion engine
Inventor: MAIER KARL
IPC: F02B75/26
Filed: 1981-06-02
Abstract: Internal combustion engine, the stator of which has a rigid spindle (axle) projecting from it on both sides and at least one through bore running parallel thereto with an axially displaceable piston. Circular discs with circular segmental compression spaces and turbine discs connected to these, through which ignited combustion gases can escape into the compression spaces, thus driving the turbine discs, are seated on the spindle on both sides of the stator. The circular discs and turbine discs lying opposite one another are positively coupled by a suitable method.
Patent DE-3123110-A1 (DE)
Title: Electrochemical analytical method
Inventor: LEDJEFF KONSTANTIN DIPL PHYS D
IPC: G01N27/42
Filed: 1981-06-11
Abstract: An electrochemical method of determining the content of alloying elements in a metal melt uses the oxygen equivalent required to completely oxidise the particular metal in a voltammetric titration as a measure of the quantity of the element. For the titration end product, the oxygen concentration in the melt rises sharply to a higher value corresponding to the Me/MeO equilibrium of the next nobler alloying metal, with the result that an O-sensitive solid electrolyte probe, for example ZrO2 can be used to indicate it, it being possible to connect the probe and an unchanging reference electrode so as to form a galvanic cell  [O]reference/ZrO2/[O]melt having a measurable EMF. For example, a test melt to be analysed is continuously drained from a casting pot (1) and, while a known amount of oxygen, which can be checked by means of a gas meter (4), is injected, it is fed to a measuring tube (2) which is heated by a furnace (8). In the measuring tube, a probe (7) measures the O concentration in the flowing melt. Deviations from a set EMF which is kept constant correspond to deviations of the test melt from the specified concentration; their magnitude can be determined by changing the flow rate with the regulator (3). <IMAGE>