baber/WOPTO huggingface dataset:
Patent DE-2840958-A1 (DE)
Title: Telephone circuit with signal interchange over one pair - allows three levels to be transmitted at two voltage levels using threshold detector
Inventor: SEIDEL GUENTHER
IPC: H04Q1/38
Filed: 1978-09-20
Abstract: The telephone circuit permits the interchange of three signals at two voltage levels to take place between two equipment units using a single line pair. the first signal is sent from the first unit to the second at earth potential. The second signal is also sent at earth potential from the second to the first station. The third signal is seng from the first to the second station at a negative potential. The second signal overlaps the first and third switching signals. A detector in the second station operates as a threshold detector for the first and third signals. Two resistors in series are connected to the input of the detector. The second signal is fed to their junction point.
Patent DE-2854766-A1 (DE)
Title: Bonding two coachwork components with large surface tolerances - by adhesive strip with edging seals preventing material loss
Inventor: SCHAEPER SIEGFRIED DIPL ING DR
IPC: C09J5/00
Filed: 1978-12-19
Abstract: Before the adhesive applied to a slot between two workpieces forming part of the coachwork of a vehicle, sets to bond them tog., the slot is closed by means of a plastically deformable sealing agent, which enclosed the adhesive in the slot. Before the workpieces are joined tog., the plastically deformable sealing agent is laid on one workpiece at a distance apart corresp. to the width of the adhesive joint. The adhesive is then applied between the two sealing agents, and the two workpieces are pressed together to make a joint. To ensure that where large tolerance gaps between workpieces have to be bridged over, a slowing out or a washing out if the components are dipped, of the adhesive is avoided. The invention provides a suitable adhesive strip for carrying out the process.
Patent DE-2855310-A1 (DE)
Title: Concrete road bridge multi-span girder structure - has inbuilt steel unit stiffening in reduced height support area
IPC: E01D2/00
Filed: 1978-12-21
Abstract: The load bearing structure for a bridge, esp. road bridge, is made of reinforced or prestressed concrete, in the form of a continuous girder crossing two or more spans. The structural height of the load bearing structure (10) is considerably reduced in the support area, and here it is strengthened by one or more pieces of built-in steel (12). It may have slack reinforcement in this area, and can have prestressing applied to it here. It can be made up from prefabricated girder pieces joined together by site concrete. This enables a continuous through-effect to be attained, with min. effort.
Patent DE-2903028-A1 (DE)
Title: Poultry carcass packing system - has thruster delivering via tapering cowl into spring-loaded funnel jaws for pushing into gag (NL 11.2.80)
Inventor: MARKERT GEORG HENDRIK
IPC: B65B25/06
Filed: 1979-01-26
Abstract: The chicken (100) is placed between a mechanical thruster (6) and a funnel (12) formed by a number of hinging spring loaded jaws (13, 15) Initial movement of the thruster delivers the chicken into the funnel via a sprung cowl (17), the legs (102) extending rearwards, while the apex of the breast-bone hooks behind the cowl edge. The thruster then moves backwards for a first amount, allowing the extended legs of the chicken held by the cowl to fall together into a position opposite the front face of the thruster. A bag (23) opened by an air jet, is then thrust over the funnel jaws, and the thruster moves forward again, acting against the ankle joints, so as to fold the legs sharply against the breast cage as the chicken is delivered into the bag.
Patent DE-2904713-A1 (DE)
Title: Car theft protection device - comprises document of porous paper water marked and secured to window by brittle plastics
Inventor: WOLF OSKAR
IPC: B42D25/40
Filed: 1979-02-08
Abstract: Porous paper is used for the document, absorbing thin glue so as to form a sheet of foil, and passed between rollers obliquely downwards so as to lie against the glass and roll out any bubbles. The rollers are followed by a roller driven in synchronism and forming slits in the document, and to a lesser extent in its base. Thermal dyes and chemicals are then used to form watermarks in the paper under official supervision. Brittle-hardening plastic secures the document to the glass, so that it cannot be transferred elsewhere. The document is used in a soft polyethylene support which may be Teflon (RTM) coated.
Patent DE-2914160-A1 (DE)
Title: Lawn surface skimming and take up implement - has U=shaped blade carrier with skimming blade drawn by drag-line
Inventor: NUERNBERGER GUENTER
IPC: A01B1/24
Filed: 1979-04-07
Abstract: The device is for taking up grass sod from lawns, parks, stadiums etc. It ensures that sods are cut in equal thicknesses which is important when patches are to be renewed. The implement has a U-shaped blade carrier (1) with a skimming blade (3) between the shank ends (2) of the carrier. The blade carrier also carries a guide slide (5) and drive and steering elements (6, 7, 8). The guide slide can be adjusted vertically in guide slots (9) on the spars (10) of the guide slide (5). Guide pins (11) slide in these slots (9) and are arranged at the carrier shanks (4).
Patent DE-2925653-A1 (DE)
Title: Key-pad coil spring press switch - has definite snap-action of one coil winding off another and onto contact
Inventor: WOLF HERIBERT DIPL ING
IPC: H01H1/24
Filed: 1979-06-26
Abstract: The press button, spring loaded snap action switch is suitable for keypad use as on pocket calculators. One contact is a spiral cone spring which can be pressed down onto a second contact mounted into the insulating base material of the switch unit. The spiral cone spring (1) rises above the flat base (2), made of insulating material, and is fixed to the base (3,5) to form one electrical contact. As the spring (1) is depressed an upper coil (4) comes down onto one side of the lower coil winding (3) and snaps down the side of it onto the base and make positive electrical contact with a second fixed electrical contact (6) fixed through the insulating base (2). A break contact is also provided by a side support (8) and cross arm (7) which makes contact with an upper spring winding of the coil spring (9). Depressing the spring (1) moves that part of the winding (9) away from the cross arm contact (7).
Patent DE-2928569-A1 (DE)
Title: Mine mineral extracting machine spur rack sections - have interlocking U=shaped holder flange protrusions and bar recesses
Inventor: JAHN DIETER
IPC: B61B13/02
Filed: 1979-07-14
Abstract: Holders (13) shared by adjacent ends of sections are U-shaped, the two flanges (14) being of the same height and thickness as the two flat bars (3) making up a section, in a spur rack for machines extracting minerals in underground mine working. The flanges lie between adjacent ends (7) of two sections (2), and have end face (15) protrusions (16) or recesses engaging corresponding ones (9) in the bar end faces. The stem face (18) of the holder linking the two flanges engages below section ends, and has an attachment engaging between the bars, of width matching the bar spacing in a section. Symmetrical configuration permits spur rack sections to be joined in varying positions, turned through 180 deg.
Patent DE-2929050-A1 (DE)
Inventor: REUTER HANS JUERGEN
IPC: H05K1/00
Filed: 1979-07-18
Abstract: The number N of intermediate planes of the base material are constructed as superimposed flat grids which are separated by insulating layers and are arranged to form a grid by displacement in each direction of the electrically conductive webs which are spaced apart by @, in such a manner that, proceeding from a first flat grid (a), which is adjacent to an outer plane, the other flat grids (b, c) are arranged successively and in steps in the sequence of increasing distance from the first flat grid in such a manner that one flat grid is displaced with respect to the flat grid preceding it in this sequence by the sum vector <IMAGE> where k designates a geometrical factor and H the number of different directions of the webs S. The invention is used to produce a multi-layer base material which can be used universally, is prefabricated and can hence be obtained from stock. <IMAGE>
Patent DE-2931924-A1 (DE)
Title: Pressing printed circuit laminates - energy is saved by moving cured material to separate press for cooling
Inventor: FASBENDER HELMUT DR
IPC: H05K3/02
Filed: 1979-08-07
Abstract: Laminated sheets, pref. non-decorative, are produced under heat and pressure in daylight presses. The pressing stages of heating/curing/cooling are divided into separate steps by heating/curing and cooling in separate presses; the material is thus transferred from a hot press to a separate cold press. Particularly suitable process for printed circuit laminates bare or copper-clad e.g. phenolic or epoxide-paper types, saves energy and time, improved punching properties and reduced shrinkage of laminates.
Patent DE-2932057-A1 (DE)
Title: Standardised carrier-wave supply for microwave relay station - has programmable frequency divider and comparator but no mixer (HU 28.7.80)
Inventor: HERPY MIKLOS
IPC: H04J1/06
Filed: 1979-08-07
Abstract: The carrier wave supply has its microwave oscillator (3), its programmable frequency divider (4)(coupled to the oscillator) and its phase or frequency comparator (5) forming a carrier wave stage (1) that forms the supply with a comparator unit (2). The microwave oscillator's first output (19) is connected to the carrier stage's output (29) and its second output (20) is connected to the input of the divider. The frequency comparator (5) compares the output of the divider with a reference received at the reference input (31) of the carrier stage and produces a control signal for applying to the control input (21) of the microwave oscillator.
Patent DE-2934500-A1 (DE)
Title: Shooting practice target assembly - has disc group rotated about vertical axis, carrying two concentric, contra-rotating rings with target markings
Inventor: KLEIBOEMER WOLFGANG DIPL ING
IPC: F41J9/02
Filed: 1979-08-25
Abstract: The device for shooting practice consists of a ring with peripheral elements (3) and carrying two concentric rotating annular discs (1,2) at its centre. The whole can be rotated about a vertical axis so that either side faces the weapon, and the two inner discs can be rotated in opposite directions (5,6). Each disc carries a set of target markings (12 to 19; 20 to 29) equally spaced around it. The device is intended to be so operated, as to present friend or foe positions. The two rings carry discs.
Patent DE-2940074-A1 (DE)
Title: Mine air conditioning filter system - has duct assembly behind ventilator pressing air back by throttling
Inventor: HOELTER HEINZ ING GRAD
IPC: E21F5/20
Filed: 1979-10-03
Abstract: The filter is used for removing dust from large volumes of air in underground mines. The air is sucked in from a long working face of a forward driving area. Use is made of a duct assembly bringing back quantities of air, behind the ventilator. The desired volume of air is pressed back into the area concerned, by more or less throttling. The area is in the form of a duct assembly, pref. of the perforated sheet metal sheath type, sheathing part of the filter. This guarantees safe ventilation in the area of the filtering and ventilating assembly, where gases may emerge.
Patent DE-2941853-A1 (DE)
Title: Tiled stove wall construction method - presses tiles into resilient mat and pours concrete over rear faces
Inventor: EISENSCHINK ALFRED
IPC: A21B3/00
Filed: 1979-10-16
Abstract: The method constructs a stove wall from a number of tiles having fire-resistant concrete cast onto their rear faces. A resilient mat (14) of the size of the stove wall is inserted in a mould (8), followed by the tiles (3) with their outer faces pressed into the mat and leaving spaces between them for seams, so that beads (15) of the mat material protrude into these spaces. The concrete (9) is then poured onto the rear faces of the tiles, filling up the seam spaces as far as the beads, so as to leave a peripheral groove round the stove free of concrete.
Patent DE-2943923-A1 (DE)
Title: Electromechanical rotary drive switching - has shaped shaft operating microswitches in adjustable worm gear driven disc centres
IPC: H01H19/62
Filed: 1979-10-31
Abstract: Worm and gear driven switch unit of an electromechanical type and which can be adjusted whilst in motion. A motor (3) and gear unit (2) rotates a shaft (1) which is positioned through the centre (9) of several adjustable discs (8,8' etc.). The shaft (1) is half, or similarly, rounded (100) so that it can operate a switch (6,7) at each centre (9) of each disc (8). The switches (7) are microswitches with a top lever arm (6) depressed by the rotating shaft (1,100). Each switch (7) on the different discs (8) can be given a different operate point by adjusting the position of the switch around the shaft (1). Each disc (8) has a toothed centre (13) to engage a worm thread (14) adjuster bar (17) at the bottom. The discs are graduated to provide reference indicators. The discs (8) may be adjusted by their worm drive (14,17) mechanisms whilst the unit is in operation since there is no mechanical fixing between shaft (1) and disc (8) at the centre (9).
Patent DE-2946030-A1 (DE)
Title: Protecting nozzle and lining of metal refining vessel - by carbon di:oxide addn. to oxygen jet and pref. to hydrocarbon shielding gas
Inventor: WELLS WILLIAM
IPC: C21C5/35
Filed: 1979-11-14
Abstract: Method of protecting the bottom blowing nozzle and refractory lining of a vessel for refining molten metal, esp pig iron, the nozzle being of the type having at least three concentric pipes, oxygen-contg gas being passed through the central pipe and hydrocarbon and/or inert gas being passed through the annuli between the inner and outer pieps, comprises passing a mixt of oxygen and carbon dioxide gas through the central pipe and increasing the proportion of carbon dioxide in the mixt during the refining process, pref from 10 vol % to 100 vol%. The carbon dioxide causes a redn in the temp of the metal bath near the nozzle by endothermic reaction with carbon in the metal and reduces formation of iron oxide so that the life of the nozzle and lining is increased to 400 operational hours.
Patent DE-3008767-A1 (DE)
Title: Power generation system - with coupling closed bio:physical and biochemical process circuits
Inventor: HOEFER CHRISTIAN
IPC: F03G7/00
Filed: 1980-03-07
Abstract: Energy generation system is based on a combination of solar heat, geothermal heat and biochemical digestion processes. Closed circuits for the biophysical and biochemical energy are coupled and used to produce mechanical work and generate electricity. Storage circuits are added to accumulate energy for peak periods. This turns municipal, agricultural and industrial waste into energy and prevents a pollution of the environment. It saves large amounts of primary energy such as coal, mineral oil or natural gas.
Patent DE-3011998-A1 (DE)
Inventor: SARAN HERBERT DIPL CHEM DR
IPC: C11D3/22
Filed: 1980-03-28
Abstract: This invention relates to a process for preparing bleach activator granulates comprising from about 90 to 98 percent by weight of bleach activator and from about 10 to 2 percent by weight of granulating adjuvant, based on the weight of the anhydrous components, which comprises the steps of: (a) mixing powdered bleach activator which has a mean particle size of from about 0.01 to 0.8 mm with from about 50 to 100 percent by weight of the total granulating adjuvant to be used, which granulating adjuvant comprises a water-soluble cellulose ether, starch, or starch ether in the form of a free-flowing powder having a mean particle size of from about 0.01 to 0.8 mm; (b) moistening the mixture from step (a) with water or an aqueous solution containing the remainder of the granulating adjuvant in a solution of from about 0.1 to 10 percent by weight, based on the weight of the total solution; (c) granulating the moist mixture from step (b); and (d) drying the moist granulate from step (c) until the moisture content is less than 2 percent by weight, preferably less than 1 percent by weight. Additionally, during steps (a) or (b), a polysiloxane defoaming agent can be added.
Patent DE-3019062-A1 (DE)
Title: Safety device for centrifuges - has protective pan surrounding rotor resting on motor base and held by three deformable legs
Inventor: SCHOLZ EDGAR
IPC: F16P1/02
Filed: 1980-05-19
Abstract: The centrifuge has a housing (1) with motor base (2) forming its bottom, on which three legs (4) are fixed, which carry the protective pan (3). The protective pan has a cylindrical upper part (10), which becomes tapered towards the motor shaft (5) and connects to the bottom (6) with an upside turned collar through which the shaft (5) penetrates. The protective pan is fixed to the three legs (4) in such a way that after a rotor failure they can be easily detached and replaced. If a rotor failure occurs, then the broken pieces are hurled tangentially against the inner surface of the protective pan and the impact is transmitted onto the legs, which deform at the weakened sections (11).
Patent DE-3026066-A1 (DE)
Inventor: GROLLA HERBERT ING GRAD
IPC: C22C3/00
Filed: 1980-07-10
Abstract: 1. A vacuum casting method using casting moulds which comprise a moulding sand consolidated by means of underpressure and a foil which forms the mould cavity and is held pressed against the moulding sand by means of the underpressure, characterized in that a material with a melting temperature below the casting temperature of the material to be cast is used as the moulding sand.
Patent DE-3027180-A1 (DE)
Title: Portable water treatment plant - with two back flushing filter tanks in ring main with two pressure vessels
Inventor: KLEIN HANS-ULRICH ING GRAD
IPC: B01D35/12
Filed: 1980-07-18
Abstract: A water treatment system is based on several filter tanks, contg. backflushing filters, which are joined by a ring main to several pressure vessels. The ring main can be separated at various points to allocate specific functions to the filter tanks. This creates a simple plant with a high performance. It is compact enough th be utilised as a portable plant.
Patent DE-3030355-A1 (DE)
Title: Fastening thermoplastics sealing webs to light metal sheet roof - involves generating vacuum between trapezoidal sheet metal upper side and heat insulating roof skin underside
Inventor: SPEIDEL KARL
IPC: E04D13/16
Filed: 1980-08-11
Abstract: Between the upper surface of the trapezoidal sheet metal and the roof shim underside is generated a moderate vacuum. This produces a surface ambient air pressure on the properly welded sealing webs of chlorinated polyethylene. Thus, providing resistance even for the highest wind forces and pressures. Even if any leakages should occur the system provides for warning indirection over part of the affected surface and starts operation of a centrally located pumping set, capable of maintaining the required differential pressure. The system tightness is improved by mixing hard foamed plastics plates and seals, and the pump may be controlled over a relay, acting on its DC motor under control of appropriate pressure sensors. A display or an acoustic signal may complete the arrangement.
Patent DE-3038024-A1 (DE)
Title: Eye lens capsule opening instrument - has cutter head with annular guide track for axially-protruding blade
Inventor: SCHLEGEL HANS-JOACHIM PROF DR
IPC: A61F9/007
Filed: 1980-10-08
Abstract: The instrument opens the lens capsule vessel in the eye of a live creature during an extracapsular cataract operation. It has a cutter head (13) with an annular guide track (15) for a knife blade (16) protruding in the axial direction and making a circular cut. Inside the track there can be a flat trough (27) connected to a vacuum source, and the track can run along the periphery of a disc-shaped head, to which the coaxial bore of a stem (12) carrying the head is connected, while a wire (18) moving the blade works in the track and in the bore.
Patent DE-3045773-A1 (DE)
Title: Gas-developing chewing gum - contg. carbonate salt in granules to protect from premature reaction
Inventor: OGAWA KOICHI
IPC: A23G4/02
Filed: 1980-12-04
Abstract: 92-97 Pts. of carbonate and/or bicarbonate salt is granulated with 0.5-2.0 pts. sodium sulphate and/or anhydrous Na2SO4 and with 0-5 pts. of polyphosphates, sugars and/or organic acid salts. 5-50 pts. of the granules are mixed with 50-95 pts. acid component contg. fruit acid, fruit powder, sugars and/or flavouring agents to form a gas developing compsn., and 5-20 pts. of this are combined with 80-95 pts. chewing gum. The (bi)carbonate is protected from premature reaction with the acid, so the compsn. retains its gas developing capacity during storage.
Patent DE-3048022-A1 (DE)
Title: Antifreeze for compressed air brake - is mixt. of isopropanol, propylene glycol and rust inhibitor
Inventor: MORANT JUN MAX
IPC: C09K3/18
Filed: 1980-12-19
Abstract: Antifreeze for compressed air brakes consists of a mixt. of i-propanol (I), propylene glycol (II) and rust inhibitor (III). Pref. (III) is an N-contg. condensn. prod. of an alkanolamine salt or benzenesulphamyl- N-methyl-amino carboxylic acid. The compsn. contains ca. 3% (III), ca. 5% (II), rest (I). The antifreeze passivates the surface and prevents frost (partly) blocking the pipes or valves, which can impair the operation of the brakes, and also prevents corrosion in the system.
Patent DE-3048274-A1 (DE)
Inventor: ZETTL OTTO
IPC: B23B31/12
Filed: 1980-12-20
Abstract: A drill chuck consists of a two-piece housing, a two-piece insert and a cage for a plurality of jaws. The two pieces of the housing are threaded together. The rearward piece thereof is a fastening sleeve. The two pieces of the insert are in threaded driving engagement. The front piece is held against rotation and is only shifted axially in order to open or close the mouth formed by the jaws. The rearward piece of the insert is held against axial displacement and can be rotated by inserting a key through a bore of the housing from the rearward side thereof. A drill can be clamped in the chuck and then the chuck with the clamped drill can be inserted in a driving shaft of a drilling machine.
Patent DE-3104898-A1 (DE)
Title: Electrophotographic copying device
Inventor: LENHARD MYRON JAMES
IPC: G03G15/22
Filed: 1981-02-11
Abstract: Electrophotographic copying device, in which a photoconductive element is arranged in such a way that a set of image zones is present on it. Each image zone of the same set is essentially of the same size, successive image zones being separated from one another by an image-free zone. The photoconductive element is of a size such that at least two sets, having image zones, of different size can be constructed on its surface.
Patent DE-3108007-A1 (DE)
Inventor: BRUNSCH KLAUS DIPL ING
IPC: F16D3/78
Filed: 1981-03-03
Abstract: 1. An elastic shaft coupling which allows axial and angular displacement, with two flange parts (14a, 14b) lying axially opposite one another and with at least one coupling element (12, 13) which consists of fibre-reinforced plastics material and which is built up from radially arranged continuous layers (17) and layers (16) with air slots (21), which are connected together to one another by bolts (4) arranged at the periphery, characterised in that the flange parts (14a, 15a) consist of fibre-reinforced plastics material and two coupling element parts (12, 13) are present which are each composed of layer packs (12a, 12b) of at least two layers (16, 17), the one layer (16) of which has a centre part (18) and three outer parts (19) separated from the centre part (18) by intermediate spaces (air slots 21) and the other layer (17) consists of a single part, in that the fibre orientation in each layer (16, 17) extends in two directions perpendicular to one another, in which respect the fibre directions in the layers lying axially side-by-side are in each case rotated through 45 degrees, and in that the flange parts (14a, 15a) are pressed together with the layer packs (12, 13a) and hardened.