baber/WOPTO huggingface dataset:
Patent DE-2847391-A1 (DE)
Title: Contactless tap changer for distribution transformer - has unity ratio current transformer and having antiparallel thyristor pair connected across primary winding
Inventor: KRATZMAIR ERNST DIPL ING
IPC: G05F1/30
Filed: 1978-11-02
Abstract: In tap changers using anti-parallel connected thyristor pairs instead of moving contacts a change from a low to a higher tap occurs with natural commutation. However, in the reverse direction accurate and complicated timing and detection circuits are needed to ensure safe operation. The proposed modification incorporates a 1:1 current transformer (10) in the output line (3) with a common connection between windings at one end. The primary winding is bridged by an anti-parallel thyristor pair (11), and the free end of the secondary winding connected through a similar switch (12) to the lowest transformer tap (6). To tap down the switch (11) bridging the current transformer primary is turned off whereupon the secondary voltage rises rapidly until the series switch (12) is triggered. Trigger pulses to the high tap (7) are stopped and it commutates off. The lower tap (8) is then triggered, the current transformer primary short circuited again, and normal operation restored.
Patent DE-2900583-A1 (DE)
Title: Pressure resistant wallpaper substrate - mfd. by lining expanded polystyrene strip with extruded rigid polystyrene foam
Inventor: SEITNER JUN BERND
IPC: E04B1/78
Filed: 1979-01-09
Abstract: Webs and plates of expanded polystyrene which are to be used as insulating base of wallpaper have to be made pressure resistant to prevent premature denting. The webs or plates of sliced or cut expanded polystyrene are for this purpose lined with webs or plates or rigid extruded or blown polystyrene foam. This joint can be performed by thermal-fusion or by an adhesive. This allows wallpaper to be peeled off and relaid without the difficulties caused by the conventional cardboard lining. The white surface eliminates the effect of low-cost grey cardboard shining through the wallpaper.
Patent DE-2905263-A1 (DE)
Title: Vidicon tube front plate seal - is formed by heating solder ring between front disc and tube rim under pressure
Inventor: YOSHINO TSUNEKAZU
IPC: H01J9/26
Filed: 1979-02-12
Abstract: The front end of a vidicon tube has a glass disc (6) mounted on the open end of the glass vacuum tube (5) with a ring shaped signal electrode (7) around the joint region. On the inside of the disc is a transparent conductive layer (8) and an photo conductive layer forming photo electric converter/collector electrode behind a grid electrode. To form the joint a ring of solder (19) is included between the disc and the rim of the tube. This has lead and tin as its main constituents, and has antimony and zinc as lesser constituents. The ring is heated under pressure at which the liquid and solid phases of the alloy are formed simultaneously.
Patent DE-2907171-A1 (DE)
Inventor: BREIMESSER FRITZ DIPL ING
IPC: H02H3/347
Filed: 1979-02-23
Abstract: A method and apparatus for monitoring conductor currents for a fault current which changes the magnetic bias of a magnetic circuit in which the magnetization of the magnetic core is alternatingly reversed by sequences of magnetizing pulses and a determination made of the number of pulses up to which the pulse amplitude exceeds predetermined voltage reference value, with the change of this number of pulses used to derive an output signal.
Patent DE-2907318-A1 (DE)
Title: Centrifuge drum with cylindrical and conical zones - where worm profile is designed for efficient sepn. of solids from liquids, esp. from liquids with high viscosity
Inventor: BENDER WOLFGANG DR
IPC: B04B1/20
Filed: 1979-02-24
Abstract: The drum contains a worm possessing a single- or multi-start helical blade. The cylindrical zone of the drum is used as a clarification zone, in which the blade forms a belt worm, where the flank height (h) is smaller than the distance(s) between the internal wall of the drum and the outer edge of the overflow (8). The belt worm is pref. fixed on the outer edge of several, and at least three, radial plates (10) aligned in the axial direction and fixed on the core of the worm; and plates (10) pref. contain holes (12) in the inlet zone. The pitch of the worm pref. increases towards the conical zone of the drum. Provides rapid and simple sepn. of the liq. and solids in a suspension where the solids settle only slowly.
Patent DE-2907476-A1 (DE)
Title: Set of ski attachment elements - is used to fit ski equipment such as bindings or diverters and is built into ski upper surface during mfr.
Inventor: KUHBIER PETER
IPC: A63C9/086
Filed: 1979-02-26
Abstract: The set of ski attachment elements is used to attach ski bindings and other equipment to be fixed to the ski such as crossover protection elements. Attachment elements are formed into the ski itself during the production process on the layer of material making up the upper surface of the ski. These attachment elements are made to take corresponding connectors for the various items of equipment to be fitted on to the ski. The attachment elements have one reception groove each fitted with a dovetail profile into which fits an attachment shoe equipped with a corresponding profile and located on the equipment item to be attached.
Patent DE-2910953-A1 (DE)
Title: Depot ship for one-man submarines and similar small combat craft - is itself submersible and has servicing facilities with submerged lock and assorted munitions
Inventor: EICKMANN BODO DR ING
IPC: B63G8/00
Filed: 1979-03-20
Abstract: The depot ship for one-man submarines and similar small combat craft is intended for positioning offshore to ward off seaborne attacks, and is itself submersible. The submarine, comprising a cockpit unit with a periscope and snorkel between buoyancy chambers, start and finish their missions at the depot ship which is fully equipped to service them. Servicing takes place in a compartment embodying a tubular lock with watertight doors at both ends. Apart from standard torpedos, smaller ones suitable for carriage in tandem are available as well as other munitions.
Patent DE-2911477-A1 (DE)
Title: Cigarette-smoker fire prevention device - comprises capsule containing cigarette with suction cone in base for air
Inventor: LANGE WERNER
IPC: A24F13/14
Filed: 1979-03-21
Abstract: The fire-prevention device is for a smoker liable to fall asleep, and comprises a capsule (1), in the base of which of which a suction cone (2) is mounted, enclosing the cigarette. If air is not drawn in by the smoker, its absence extinguishes the cigarette automatically.
Patent DE-2913759-A1 (DE)
Title: Head injury protector for car driver - has plastics covered safety glass screen elastically spaced behind windscreen
Inventor: SUGA TOSHIHISA
IPC: B60R21/06
Filed: 1979-04-05
Abstract: The safety screen for inside a vehicle is held in front of the windscreen to prevent the heads of the front seat occupants from striking the windscreen. The safety screen is provided by a transparent plastics film coated on both sides with a thin layer of safety galss for maximum visibility. The plastics film is held under tension in a support frame, with the glass cover layers adhering to the plastics. Under impact the glass particles remain embedded in the plastics without causing injury. The space between the safety screen and the windscreen is ventilated by dried, filtered air.
Patent DE-2913890-A1 (DE)
Title: Steel cantilevered section assembled staircase - has screw holes in vertical tube tops and horizontal centre bars
Inventor: ZUNNER GEORG
IPC: E04F11/035
Filed: 1979-04-06
Abstract: Individual elements with a horizontal centre bar and a top vertical tube welded onto this, make up a cantilevered staircase (made of steel). The vertical tube (1) pref. quadrilateral, is closed at the top, and is fitted for screwing (2). The centre bar (3) has a corresponding fitting (5) on its bottom walling (4), to hold the screw (6). The tube top cover (7) pref. has a threaded central hole, and the bar has a corresponding hole. Stairs may be plastics coated. Structure is safe, simple and easily assembly, and there can be no excessive lengthways expansion.
Patent DE-2914654-A1 (DE)
Title: Valve with plug supported by diaphragm - has diaphragm formed by metal disc with narrow sealed slots
Inventor: DANDANELL HOLGER
IPC: F16K31/40
Filed: 1979-04-11
Abstract: The refrigerant valve has a plug supported by a diaphragm screwed in the housing by insertion of its edge into an annular groove. The diaphragm (9) is formed by a metal disc (17), which are narrow sealed slots emanating from the edge. It can be of stainless steel and with a thin sealing washer (19) on the side towards the plug (7). The washer can be secured to the disc at the centre only. The washer may be formed as a continuous lining on the disc, and may be of plastics. Alternately it may be in the form of slotted metal discs, whose slots are offset w.r.t the diaphragm slots.
Patent DE-2915268-A1 (DE)
Title: Flat wood chip cutting rotating shaft blade - has combing and continuous strip blades with edges enclosing acute angle
Inventor: HEIM EBERHARD
IPC: B27L11/00
Filed: 1979-04-14
Abstract: Strip-shaped angled blades are mounted with alternating inward and outward cutting edges, on a shaft, for producing set-length flat wood chips. The blade comprises a combing blade (1) and a strip blade (2) with continuous cutting edge (3). These are firmly connected so that the combing blade's cutting edges lie on the outer track circle and the strip blade's cutting edge on the inner one. The continuous cutting edge encloses an acute angle (alpha) with the straight lines of the combing one.
Patent DE-2915531-A1 (DE)
Title: Energy recovery from high pressure pipe lines - using generator for battery charging and using stored energy for ancillary loads
IPC: F03B17/06
Filed: 1979-04-18
Abstract: In a pressure regulating station on a water main, the fall in pressure required is produced by driving a generator with the water flow. The generator charges a storage battery which in turn provides a constant power supply. The power supply is used to feed various electrical loads. The power supply can provide the electrical supplies for measuring instruments associated with the operation of the pipe line, provide local illumination where no main supply is available, or provide heating for the pipe ducts. In water feeds to domestic blocks of flats the generator may be employed to provide emergency lighting. The energy recovery system may be applied to practically any pipe line where operating pressure has to be reduced at some point.
Patent DE-2918245-A1 (DE)
Title: Continuous massecuite discharge mechanism - with contra-rotating smooth roller and vertical two-start worm
Inventor: ANDERS GERHARD
IPC: A23G3/04
Filed: 1979-05-05
Abstract: A continuous discharge of massecuite from a vacuum boiler is affected by a worm conveyor with a housing attached to the boiler. The part of the worm which extends freely into the housing contacts with its periphery a parallel smooth cylindrical roller which revolves in the opposite direction and is fitted with a stationary scraper. This ensures that the turns of the worm are kept filled with massecuite even at a very low level. A uniform and reliable discharge is thus achieved, maintg. a high vacuum and full capacity.
Patent DE-2921580-A1 (DE)
Title: Axial-piston hydrostatic submarine propulsion unit - has pressure pulses transmitted to surrounding water from one face of pistons
Inventor: WEGERDT FRITZ
IPC: B63H11/06
Filed: 1979-05-28
Abstract: The propulsion unit has rigidly mounted cylinders and uses pressure pulses transmitted to the surrounding water by one piston face. From the other face of the pistons in two sets (30, 31) differing in radial location (r, R) and/or dia. (d, D) arranged alternately, rods (32, 33) run to a swash plate (5) free to tilt universally within the casing (3), but rotationally fixed. An eccentric peg (8) on this plate turns coaxial camshafts (9, 15), one of which is adjustable and each serving one set of cylinders. These actuate radial piston valves (45, 50) controlling pressure medium flow to and from the piston rod end working chambers. The other end chambers communicate with water directly, or via nozzles.
Patent DE-2924475-A1 (DE)
Title: Metallising of semiconductor crystals - where semiconductor is covered with metal and then with metal oxide which aids the adhesion of photolacquer masks
Inventor: KOKKOTAKIS NICHOLAS DR RER NAT
IPC: H01L21/316
Filed: 1979-06-18
Abstract: A semiconductor crystal or wafer is covered by a layer of metal (I) and then with metal oxide (Ia). Layers (I,Ia) are next partly covered by a layer of photolacquer to leave bare zones of layers (I,Ia) which are removed. Layer (Ia) is pref. formed by oxidn. of metal (I), esp. by anodic oxidn. Alternatively, layer (Ia) is pref. formed by sputtering. In either case, layer (Ia) pref. consists of alumina. Used esp. in mfg. monolithic integrated circuits, where the formation of oxide (Ia) greatly improves the adhesion of the photolacquer.
Patent DE-2925465-A1 (DE)
Title: Microfilm container with multiple compartments - has facility for writing data together with data stored on tape section
Inventor: SCHUMACHER THEO
IPC: B42F7/02
Filed: 1979-06-23
Abstract: The protective container is for microfilm and is designed to provide secure retention coupled with a section on which details may be handwritten and a magnetic tape recorded section. The container has a number of compartments formed between plastic foil sheets with separating walls. The top edge of one cover is extended to provide a surface on one side for writing relevant data. A magnetic tape strip is bonded to the cover and contains recorded details for automatic transmission to a teletype.
Patent DE-2934121-A1 (DE)
Title: Individual seed drill mechanism - has hose from separator mechanism aligned along bisecting line between roller and ground
Inventor: BECKER REINHARD
IPC: A01C7/04
Filed: 1979-08-23
Abstract: The drill is designed to sow individual seed grains. The individual seed grains are transported pneumatically, and the drill mechanism has a front sowing share and a trailing pressure roller. A hose or pipe (7) is connected directly to the mechanism (3) separating the grains (8). This pipe is guided with the share (4), so that its lower end is aimed at the angle between roller and earth along the line bisecting it. The grains can be driven through the hose or pipe by compressed air from an annular nozzle (6) at its top end and the roller (5) can be guided directly behind the share.
Patent DE-2937870-A1 (DE)
Title: Tractor drawn sowing machine - has control shaft on in row of sowing holes direction carrying sowing holes closing plates to prevent overrun by tractor tracks
Inventor: JUNNILA LAURI JOHANNES
IPC: A01C7/08
Filed: 1979-09-19
Abstract: The tractor-drawn sowing machine can be raised into a transport position at the end of the sowing row, or can be lowered into the sowing position at the start of the next row by a double acting lifting device (10). The machine has a shaft (4) which can move reciprocally in the direction of the row formed by the sowing holes (7). Closing plates (1) are fixed to the shaft to close the horizontal sowing holes which line up with the tractor wheels. A control device is connected to the lifting device and allows the shaft to carry out the reciprocating motion so that the tractor tracks are at a desired spacing and do not run over the planted seeds.
Patent DE-2940008-A1 (DE)
Title: Prodn. of hollow sections with blind longitudinal holes - by fitting mandrels into drilled holes during drawing operation
Inventor: NIWIERA WOLFGANG DIPL ING
IPC: B21C37/15
Filed: 1979-10-03
Abstract: A hollow section with blind longitudinal holes is manufactured in copper or low alloy copper in the following way. A rectangular bar (1) of the metal has a number of blind longitudinal holes (2) drilled from each end so that the inner ends of the holes are separated by a transverse wall (3). A mandrel is fitted into each hole and the bar is then drawn through a die so that its cross-sectional area is reduced and its length increased. After the final drawing operation, the mandrels are removed from the holes.
Patent DE-2942635-A1 (DE)
Title: Hydraulic feed for drilled solids - has spiral-wound tubes connected to solids-laden and gear water flows via valves
Inventor: KRAENZLE KLAUS
IPC: E21F13/04
Filed: 1979-10-22
Abstract: The arrangement is intended for introducing solids, e.g. from shaft drilling operations, into a hydraulic transport line to move them to the surface. The solids are initially lifted by an ejector pump driven by clear water. A number, preferably three, of spiral-wound tubular chambers contained in a platform assembly within the shaft are at one end connected with the diffusor and at the other with the hydraulic lift line. High-pressure gate valves alternately admit solids-carrying water and clear water into the chambers.
Patent DE-2948046-A1 (DE)
Title: Service water heat exchanger in flue - has top and bottom plates evenly dished in flue gas flow direction
Inventor: MANTKE ERICH
IPC: F28F21/08
Filed: 1979-11-29
Abstract: The copper heat exchanger is mounted in a flue, in order to heat service water to a temperature appreciably below boiling point. It comprises a casing with top and bottom end plates, between which are tubes for the flue gas, while feed and discharge branches for water are provided for its circulation in the chamber formed between the casing and the outside of the tubes. The plates (1,2) are evenly dished in the flow direction of the flue gas. The casing (3) can be cylindrical and the end plates part-spherical. The casing can extend beyond the end plates and taper towards the outside.
Patent DE-2949086-A1 (DE)
Title: Leaf harvesting machine for turnips - includes heading blade and rotor with beater members
Inventor: WESTPHAL HERBERT
IPC: A01D23/02
Filed: 1979-12-06
Abstract: The leaf harvesting device is esp. for turnip harvesters. It has a heading blade held by a holder and controlled in height by a sensor wheel which has an ejector- or stripper device. After the heading blade there is a drive rotor which has a vertical rotor shaft. The rotor conveys the cut leaves towards the ejection side. There is an open rotor/beater rotor with beater tools. On the conveyor side facing the un-headed turnips is a vertical guide face for the leaves and the feeds sideways and acts with the beater rotor.
Patent DE-2949647-A1 (DE)
Title: Teeth polishing appts. for calcification removal - has rotary polishing bit fitted to head of motor housing
Inventor: SCHNEIDER DIETER DR DR
IPC: A61C17/00
Filed: 1979-12-11
Abstract: The device has an elongate housing (2,3) containing the electric drive motor and acting as a handle. The front end of the housing (2,3) has a reception head (11,12) fitted to it into which the polishing element, which is rotated about its longitudinal axis, is fitted. The polishing element has a shaft (14) in drive connection with the reception head (11,12) and a conical polishing head (15) made of a resilient material, e.g. rubber. Pref. the reception head (11,12) is angled at between 45 and 70 degrees to the longitudinal axis (1) of the motor housing (2,3). Regular use of the device prevents the build-up of calcification deposits which normally have to be removed by a dentist.
Patent DE-2951722-A1 (DE)
Inventor: POLLE HUBERT DR RER NAT
IPC: H01B7/28
Filed: 1979-12-20
Abstract: 1. An electric cable, the sheath of which surrounds a core which consists of synthetic resin-insulated conductors, wherein the cavities between the individual strands of the core, or between the core and the sheathing, are at least partially filled wiht a powdery mixture, which consists of a large portion of dielectric high-value, highly-cellular polyolefines, in particular polyethylene, or polystyrene, and a smaller portion of substances which are capable of swelling in the presence of moisture, characterised in that the highly-cellular polyolefine either has a surface which is highly fissured by grinding, or is so produced as to have open pores.
Patent DE-3000159-A1 (DE)
Title: Tilt and turn window assembly - has narrow guide rail screwed above draw unit section with lockable extending arm
Inventor: LANG OTTO
IPC: E05D15/52
Filed: 1980-01-04
Abstract: A draw element, led round the four frame corners and force-locked to a ring, is rigidly connectable to metal components mounted in frame-fixed guideways, in furniture on a turning or tilting window, or similar. The element (3,4) is made up from two or more parts, the first having an extension device, with an arm (10) held on a retaining rail (5) and optionally lockable on the window wing (1) by a bolt (21) through the rail. The rail is mounted above this part, and fixable on the wing by screws passing through slots (16-19) in the part. The protruding ends of the part are connectable to the second and any further parts, closing the force-transfer ring. The rail is narrow enough to be mounted in any esp. wooden window with normal rebate, providing firm anchorage.
Patent DE-3005446-A1 (DE)
Inventor: FISCHER WERNER ING GRAD
IPC: C08F8/44
Filed: 1980-02-14
Abstract: This invention relates to gels consisting of the reaction product of water-soluble polymers of poly(meth)acrylic acid derivatives and multivalent metal salts, in which connection such gels are characterized by the fact that they consist either of the reaction product of a W/O dispersion of the water-soluble polymers with water-soluble solutions of the metal salts, or of the reaction product of aqueous polymer solutions with W/O emulsions of the metal salts. Further, the invention relates to a process for the production of the gels, as well as their use to seal or consolidate permeable soluble materials and to form mortar type combining masses.
Patent DE-3006126-A1 (DE)
Title: Harvested produce multiple stage dryer - has stacked conveyors with flaps permitting hot air circulation and discharge onto conveyor below
Inventor: LINDNER HEINZ
IPC: F26B15/14
Filed: 1980-02-19
Abstract: The multiple stage dryer for harvested material has a set of e.g. four endless conveyors (14, 16, 18) one above the other, and above a discharge conveyor (20) at the bottom. These conveyors, except the discharge conveyor, have swinging flaps so that air can pass through the gaps, to the material carried by them. At each return drum (24, 28, 32) at one end, the flaps swing down, so that the material falls through onto the return strand below. This causes the material to travel along a zig-zag path between a feed hopper (40) at the top, and the receiving end of the discharge conveyor. Warm air blown horizontally along the discharge conveyor through a bottom opening (46) travels along a zig-zag path from bottom to top, against the direction of travel of the conveyed material and is discharged through a duct (52) at the top, at the end remote from the feed hopper. Alternative designs include one with a different hot air circulating system.
Patent DE-3006783-A1 (DE)
Title: Stainless steel mesh insert for smoothing iron steam chamber - gives improved steam production and can use undistilled water
Inventor: PFEFFER GERHARD DIPL CHEM DR
IPC: D06F75/18
Filed: 1980-02-22
Abstract: The steam-production chamber of a steam smoothing-iron contains one or more layers of a woven wire mesh. The mesh is pref. of stainless steel wire about 0.4 mm in diameter, with a clear separation of 0.6 mm between adjacent wires. It may be cast-in with the sole-plate, or be a separate addition, having a turned-up edge to ensure correct positioning. The mesh may consist of a single layer deformed into a zig-zag shape. In comparison with inserts of asbestos cloth, the mesh inserts improve the steam production rate; does not shed particles which block the steam channels; and is easy to clean, permitting the use of un-distilled water.