baber/WOPTO huggingface dataset:
Patent DE-4036408-A1 (DE)
Title: Hydraulic system for sheet metal press - has one-way valves to connect cylinder chamber, and includes pressure reduction valve
Inventor: REITTER ERHARDT
IPC: B21D24/14
Filed: 1990-11-15
Abstract: The hydraulic system is for tools or presses, to process sheet metal. It has two working cylinders (10,11), the chambers of which are in flow connection to charge pistons in the cylinders. One cylinder is formed as a forming cylinder, the other as plate holder cylinder. The rear cylinder chambers (16,21) are connected via two opposite parallel one-way valves (37,38), which permit a hydraulic medium flow in one direction only. The chamber (16) of one cylinder (10) is connected to a pressure accumulator (51), which is at a preset pressure, via one-way pressure reduction valves (44,57), with opposite flow directions. The valves are opened, when a pressure differential arises, which is larger than the set pressure level. Normally, the valves close the connection between accumulator and cylinder chamber.
Patent DE-4041346-A1 (DE)
Title: Plastic housing containing encapsulated semiconductor chips - has chips protruding on all sides beyond metal islands below
Inventor: PAPE HEINZ DIPL PHYS
IPC: H01L23/495
Filed: 1990-12-21
Abstract: The standard plastic housing contg. encapsulated semiconductor chips with integrated circuits on the active surfaces accommodates each chip on a metal base forming an island. The chips are enclosed in a frame formed by the conductor strips which act as the housing terminals. This is joined by thin ribs to the island until chip, island and inner strip portions are enclosed in plastic. Each island is of smaller surface than its chip, which protrudes for 300 microns at least beyond it on each side. At its ends below the chip, the island can be enclosed elastic beads, typically of filled epoxy resin or silicon glue. ADVANTAGE - Compact, without high mechanical stresses in pressed material.
Patent DE-4100055-A1 (DE)
Title: Storage and transport container for travelling - consists of bag divided up into compartments, and cover attached to it
Inventor: DEKANOVSKY WALTER
IPC: A45C7/00
Filed: 1991-01-03
Abstract: The storage and transport container, especially for hygiene and toilet articles for travelling, has at least one bag (11) divided up into compartments, and a bag-cover (12) joined to the bag. (11) by means of hooked-pile fastening strips (13-16). The bag (11) is preferably rectangular and has a front (18), back (17), top (19) and underside (20). The bag-cover (12) has especially hooked-pile fastening strips (42,43) along the edges. ADVANTAGE - The container can be used for various purposes and for objects of different sizes.
Patent DE-4100246-A1 (DE)
Title: Spectacle hinge assembly - comprises three parts at oblique angle to hinge axis
Inventor: HUBER ULRICH DIPL ING
IPC: G02C5/22
Filed: 1991-01-07
Abstract: The spectacle hinge is in three parts (1,2,3) joined together by a cylindrical spindle. These are not at right angles to the hinge axis, but instead at an oblique angle other than 90 deg. They so work together as to give a screw-tightening effect, and generate by radial forces and torque a self-locking pivoting movement, without great reduction in strength. Parts (2,3) can be secured together by a screw (5) on which no external release torque can act. ADVANTAGE - No risk of working loose.
Patent DE-4102090-A1 (DE)
Title: Medical ultrasonic tissue removal instrument - uses electrical oscillator to set ultrasonic vibrator in motion at end of rod with coaxial suction channel
Inventor: MUELLER WOLFGANG DR SC TECHN
IPC: A61M1/00
Filed: 1991-01-24
Abstract: The ultrasonic vibrator (11), driven by an electrical oscillator (12), is installed at the rear end of a metal vibration transferring rod (13) tapering towards the front so that the vibration at the tip has a large amplitude. A coaxial suction channel (15) inside the rod opens out at the tip (14) and can be connected to a suction hose (16) at the rear. A rinsing fluid supply channel (17) also leads to the tip and can be connected to a supply hose (18) at a position remote from the tip. This supply channel is axially arranged in the rod and suction channel by means of an axially installed tube (19) of small o.d. than the supply channel dia. USE/ADVANTAGE - Removing pathelogical, biological tissue, e.g. brain tumour, while protecting blood vessels and nerves selectively in narrow area. Prevents unintentional penetration in tissue to be treated.
Patent DE-4103991-A1 (DE)
Title: Plate for taking dental impression - is formed from two layers of wax with intermediate layer of textile
Inventor: VIGANO ARNO
IPC: A61C19/05
Filed: 1991-02-09
Abstract: The dental impression plate is used to indicate the relative positions of the upper and lower jaws, when in the biting position. It is made from a material such as a wax which is easily deformable but which hardens in a relatively short time. The plate is formed by two wax layers (3, 4) with a thin layer of textile material (5) between them. This textile layer is flexible but is not damaged when the wax layers are bitten between the patient's teeth. The textile is woven from fibres which cross over each other at right angles. USE/ADVANTAGE - Dental impression plate with an intermediate textile layer which prevents the patient from biting through the plate.
Patent DE-4106763-A1 (DE)
Title: Paper-making stock inlet - monitors gap between the moving channel wall and reference line for correction through heating fluid temp.
Inventor: WOLF ROBERT
IPC: D21F1/02
Filed: 1991-03-04
Abstract: The stock inlet for a papermaking machine, with a moving channel wall, has a control unit linked to a monitor which measures the actual gap (h + x) at a monitoring point between the channel wall and a generally rigid reference line horizontal across the channel width, at a given distance (h) from the unbent channel wall. The gap (a) between the monitoring point and the end of the channel width is at least close to 0.15 times the channel width. The temp. level of the heating fluid is set through a temp. control by the control unit to maintain a given gap (h) between the channel wall and the reference line at the monitoring point. ADVANTAGE - The system gives bending actions to the channel wall carrier to prevent the development of W or M bend faults in the channel wall carrier, which would form peaks and valleys
Patent DE-4107067-A1 (DE)
Title: Cam shaft phase control mechanism  for two camshafts - has control gear wheels displaced by cylinder or servo motor
Inventor: PLESEK DALIBOR
IPC: F01L1/348
Filed: 1991-03-06
Abstract: Cam shaft phase control mechanism for two cam shafts in which the control gear wheels (4) are so arranged that the belt or chain sections extending from the gear wheels run parallel or almost parallel to each other. The gear wheels are displaced by, for example, a hydraulic cylinder or a servo motor (7) and as a result of the displacement the inlet and outlet cam shafts are phase adjusted. ADVANTAGE - Phase control mechanism in which number of control and diversion wheels is kept to min.
Patent DE-4109150-A1 (DE)
Title: Local area communications network - feeds synchronisation information along lines extending between independently clocked nodes
Inventor: AMADA EIICHI
IPC: H04L12/42
Filed: 1991-03-20
Abstract: The communications network uses communication lines (1) extending between independently clocked nodes (2-8..2-11) for transmission of fixed length data frames. Transmission information for a synchronisation clock is provided in a given part of each frame. Each node provides a reference frame. The extracted synchronisation data is used to synchronise the node clock signal, and is inserted in the reference frame for subsequent transmission to the next  node. The received information is temporarily stored, with the quantity of information held in each frame increased when the stored information quantity reaches a given value. USE - For wide band office communications.
Patent DE-4110372-A1 (DE)
Title: Multiplexed communication system for vehicle - uses network nodes and gateways to allow common control and system monitoring
Inventor: HIRANO SEIJI
IPC: B60R16/02
Filed: 1991-03-28
Abstract: The vehicle based multiplexed communication system has three networks (10,20,30) and supporting modes (1-6, 21-28, 31-34). The networks are connected to a gateway mode (40) via circuits (52,50,51). The system comprises a first network (10) with multiplexed communication system linking all modes in groups. A second network (20) has a multiplexed communication system linking all modes in groups and a gateway network mode (40) to allow transfer of data between two groups. Preferably a plug/adaptor (60) allows connection of further network (30) esp. for diagnostic purposes. USE - Vehicle accessories and systems.
Patent DE-4115090-A1 (DE)
Title: Determining optimal pump dimensions and parameters - for designing liq. jet gas pumps, jet scrubbers and Venturi scrubbers
Inventor: SCHACHT WOLFGANG DR
IPC: F04F5/54
Filed: 1991-05-06
Abstract: Determn. of the main dimensions and flow parameters, as well as the pump characteristic curves and transport data, of liq. jet gas pumps, jet scrubber units and venturi scrubbers is effected by calculation from equations describing the pump characteristic curves, by variation of values of mean droplet dia. (dT), droplet count (Zo), initial droplet velocity (Uo), mixer tube and diffuser length (y = LMR = LD) and mixer tube and diffuser inside dia. (Dy), starting from the desired operating point of the two-phase jet pump or jet scrubber unit (i.e. from the intersection of the pump characteristic curve with the pipeline characteristic curve), with the aim of increasing efficiency (eta = entrainment jet impulse/driving jet impulse) to a max. In the case of already existing liq. jet gas pumps, jet scrubber units and venturi scrubbers, the characteristic curves and transport data are determd. from the equations by insertion of the corresp. dimensions and flow and material parameters. USE/ADVANTAGE - The method is used esp. in the development and construction of two phase jet pumps or jet scrubber units for transporting, cleaning and cooling of e.g. noxious material-laden, aggressive and toxic gases, e.g. dedusting and desulphurisation of flue gases from a solid fuel-fired boiler plant. It employs a droplet model providing a very good description of the physical process of impulse exchange between the liq. driving medium (droplets) and the gaseous entrained medium in the mixer tube.
Patent DE-4115610-A1 (DE)
Inventor: GRIMM HERMANN DIPL ING
IPC: B65D51/16
Filed: 1991-05-14
Abstract: The venting device consists of a pipe nozzle (14) which is welded to the container wall (11) of a container (10) and onto which a screw cap (50) is screwed. Combined with this screw cap (50) is an excess pressure valve which is formed by a cylindrical portion (52) of the cap (50) with radial bores (54a, b) which are closed under normal pressure by a tensioned annular element (55) made of rubber-elastic material. To protect the inside region of the pressure compensating device from splashing in the region of the annular element (55), the pipe nozzle (14) is covered by a flat ring (16a) as a safeguard against gushing. <IMAGE>
Patent DE-4118489-A1 (DE)
Title: Skid for fixing to cutter of harvester - consists of rail parallel to ground fixed to cutter by inclined bearer with leaf spring between
Inventor: SCHUMACHER GUSTAV
IPC: A01D65/00
Filed: 1991-06-06
Abstract: The skid is distributed over the whole width in the direction of drive. It consists of a rail (7) parallel to the ground fixed by a bearer (5) attached to its rear end (12) and to a beam (3) linking the cutters (4). The bearer (5) and the rail (7) are separated by a supporting spring (6) rivetted at one end (18) to the bearer, and having a tongue which engages in a staple (9) fixed to the leading end (13) of the rail (7). In cross section the rail (7) is curved upwards and is restricted on the edges. USE/ADVANTAGE - It is narrow, it is lighter in weight and so it is easier for the harvester to lift off the ground.
Patent DE-4119653-A1 (DE)
Title: Adjustable die to extrude e.g. foam sheets - has sealing strips held tightly in horizontal slots on vertically adjustable blocks and standing slightly proud against face of holder
Inventor: VOGT HUBERT
IPC: B29C48/08
Filed: 1991-06-14
Abstract: An extruding system has a feed and preforming device with tapered flow bore whose profile is wider than its height. It has lips on its nozzle above and beneath the outlet, the lips being rectangular prisms fixed to an adapter block connecting the extruder to a holder to which the outlet bore projects. The two lips are positioned one above the other; at least one is adjustable in height and is thereby moved relative to the (pref. vertical) sealing face of the holder concerned; sealing strips are positioned in horizontal slots in the surface of the lips; the vertical width of the slots holds the strips tightly; the strips stand proud from the adaptor block and towards the adjacent face of the holder by max. 1/100 mm. ADVANTAGE - The system enables the thickness of the extruding gap to be altered easily and simply to suit the type and vol. of the material used (e.g. in extruding polystyrene foam sheets)`
Patent DE-4124305-A1 (DE)
Title: Valve drive, esp. intake valve, for IC engine - has cams, positioned mirror-fashion on camshaft and levers, moved together in opposite direction by pressure medium
Inventor: BARETZKY ULRICH
IPC: F01L13/00
Filed: 1991-07-23
Abstract: The valve drive is for an IC engine having two similar (intake and discharge) valves (1,2) per cylinder. The valves are loaded by a spring in closing direction. Each valve is actuated by a cam (4,5) of a cam shaft (3), via a lever (6,7). The lever is located on a shaft (8,9) in the cylinder head. Each cam has a part-cylindrical section (4a,5a), and a conical cam face (4b,5b), which extends in axial direction. The two cams are positioned mirror-fashion on the camshaft. The levers are positioned axially non-movable on separate aligned shafts. They are held with one end in bearing blocks (10), and the other ends are held on resp. in each other. The levers are moved together but in opposite directions, by a pressure medium. ADVANTAGE - Simultaneous similar stroke changes of esp. intake valves of a cylinder, simple and space-saving.
Patent DE-4129075-A1 (DE)
Title: Extn. of long-chain paraffin hydrocarbon(s) from methanol-synthesis effluent - by extracting, stripping and using extract in carbon@ black removal, etc.
Inventor: DOMMASCHK VOLKER
IPC: C07C29/151
Filed: 1991-09-02
Abstract: Extn. of long-chained paraffin hydrocarbons from effluent resulting from the synthesis of methanol, mfd. from synthesis gas based on partial oxidn. of oils or residues of crude oil processing, comprises extracting with a gasoline fraction boiling at 40-220 deg.C, stripping the extracted effluent and using the long-chained paraffin hydrocarbon-contg. extract of the gasoline fraction in the removal of C black. ADVANTAGE - Additional materials are not required. In an example, effluent from methanol distn. at 127 deg.C and 0.25 MPa contg. 0.1 wt.% methanol, 0.08 wt.% higher alcohols and 500 ppm long-chained 11-28C paraffin hydrocarbons (5.5 m3/h) was mixed with 280 l/h gasoline fraction (boiling range 55-155 deg.C) from C black processing. Phase-sepn. occurred and the aq. phase contg. 0.095 wt.% methanol, 0.079 wt.% higher alcohols, 90 ppm lighter components of the gasoline fraction and 7ppm long-chained paraffin hydrocarbons was fed into the effluent stripper at 32 m3/h with the effluent from the carbon black processing. Stripping was carried out with 6.6 t/y steam
Patent DE-4132940-A1 (DE)
Title: Drawing unit with built in digitisation function - has pen used to produce lines which are also produced with templates and comprises with digitising panel built into board.
Inventor: DOELLING BERND DIPL ING
IPC: B43L7/00
Filed: 1991-10-04
Abstract: A drawing board unit (12) has a main slide (22) unit that moves horizontally on guide (20) and supports a vertical carriage assembly to which is attached a hand grip unit (42) that allows vertical and horizontal scale units (28, 29) to be moved through an arc for drawing angled lines on paper (26). A pen (45) may be used for this purpose. Additional aids in the form of a template (28b) a compass (48) may be used to generate curved lines or circles. Located beneath the surface is a digitising unit generating coordinate data. ADVANTAGE - Provides automatic activation of digitisation unit.
Patent DE-4139700-A1 (DE)
Title: Surgical bone fragment anchor ball joints - has recesses across faces of T-shaped top jaw and vertical bottom jaw, for securing anchorage screws
Inventor: STURTZKOPF ROBERT DR
IPC: A61B17/66
Filed: 1991-12-02
Abstract: The external clamp for bone fragments, which also forms a connection with screws inserted in the fragments, has a cross member (1) at the top of an elongated stem consisting of sections which include two ball joints (15). At top and bottom are jaws clamped together by screws (7) and with rounded recesses across their clamping surfaces, forming openings (10, 12) for the screws to be clamped. The jaws have borings arranged so that the canal inlet openings for the bone screws are arranged in a triangle. ADVANTAGE - Good sealing action and optimum control of the ball joints.
Patent DE-4203081-A1 (DE)
Title: Helicopter rotor drive system - has electric motor which rotates rotor arm about its own axis
Inventor: SCHMIDT EDWIN
IPC: B64C23/08
Filed: 1992-02-04
Abstract: A helicopter rotor has radial arms (1) which support blades and the rotor is provided with means to vary the blade pitch. Each arm (1) is mounted in a bearing (8) at the end of an inner arm (7) which is fastened to the driving shaft (2). An electric motor (4) is mounted on the inner arm (7) and rotates the radial arm 91) about its own axis. A fan rotor (6) is attached to the end of the radial arm (1) and generates a radial air flow which causes the rotor to rotate. It is claimed that this method of driving the rotor reduces friction in the driving shaft bearing so that no tail rotor is required to resist friction torque transmitted to the helicopter. USE/ADVANTAGE - Helicopter rotor transmission system which obviates the need for a tail rotor.
Patent DE-4203949-A1 (DE)
Inventor: KOEPPEL NORBERT
IPC: F16B17/00
Filed: 1992-02-11
Abstract: The self-boring fastener (1) described includes a fastening element (2) and a plate-shaped bit (3). The lateral peripheral surfaces (7) of the bit (3) have recesses (8) which extend over the whole width of the bit (3). Pressed into these recesses are the edges of protuberances (5, 6) which define a slot (4) designed to accommodate the bit (3), so that locking lugs (9) are formed. The invention thus prevents even particularly long bits (3) from tilting to one side during the boring operation.
Patent DE-4203993-A1 (DE)
Title: Set of outdoor park seats with metal supporting frame - has crossbars attached to stands anchored in ground by vertically pivoting links.
IPC: A47C11/00
Filed: 1992-02-12
Abstract: The outdoor set of seats has a metal supporting frame and a metal lattice seat. The separate park seats (20) are attached to cross bars (30) by means of the supporting frame. The crossbars are attached to stands (10) anchored in the ground by means of links which have vertical pivot axles. The supporting frame of one set of park seats (20) consists of two V-shaped flat sections (21,23) between which is fixed the seat (22). The flat sections are open at the back and end in two mounting strips (24,25) on the back of the seat. The mounting strips are fixed, eg. screwed to the two parallel, spaced apart, crossbars. USE/ADVANTAGE - The set of outdoor seats can be installed in various positions and added to by having crossbars attached to stands by means of links which have vertical pivot axles.
Patent DE-4204772-A1 (DE)
Title: Ventilation system for rooms of a building - involves ventilation unit under window in breast area with sections for conducting away output air and input of input air
Inventor: BAUER GERHARD
IPC: E06B7/12
Filed: 1992-02-18
Abstract: The ventilation unit (12) has an inlet (34) on the outside of the building for outside air and an outlet (35) for used air. On the building inside is an outlet for input air and an inlet for output air, together with a blower. In the corner area between a lower frame part (21) of the window (10) and an upper covering of the ventilation unit (12) extending into the room (25) or a window ledge (15) is located a room interior output air inlet connected to the output air inlet aperture of the ventilation unit. On both sides of the output air inlet in the corner area of the window issue outlet apertures of at least one thermic channel. USE/ADVANTAGE - A satisfactory system for ventilating and heating the rooms in a building with a ventilation unit located beneath a window.
Patent DE-4208093-A1 (DE)
Inventor: ENSINGER WILFRIED
IPC: E06B3/26
Filed: 1992-03-13
Abstract: A compound profile member (1) consists of two metal profile parts (2, 3) and two plastic insulating webs (4, 5) which interconnect these parts and which are held in grooves (7) of the metal profile parts. The inner sides of the metal profile parts (2, 3) and the plastic insulating webs (4, 5) delimit a chamber (9) which runs continuously in the longitudinal direction of the compound profile member (1) and which is filled with a heat-insulating material. A bulk material in the form of spherical grains (11) made of mineral or plastic materials is used as heat-insulating material. <IMAGE>
Patent DE-4209360-A1 (DE)
Title: Phosphorus contg. alkoxylation prods. prepn. - by reacting alkylene oxide with phosphorus halide(s), then adding magnesium silicate
Inventor: GUETTES BERND
IPC: B01J27/135
Filed: 1992-03-23
Abstract: Prepn. of phosphorus-contg. alkoxylation prod. comprises reaction of phosphorus tri- and/or oxyhalides with lower alkylene oxides, esp. ethylene and/or propylene oxides. Reaction is at 40-100 deg.C and a pressure of at most 0.5 mPa above atmospheric pressure. The catalyst is esp. a halide of Gp IV b, pref. titanium chloride and/or zirconium chloride. The reaction prod. is treated with magnesium silicate during or after working up. The magnesium silicate is a synthetic material, and is esp. a colloidal magnesium silicate. ADVANTAGE - Avoids side reactions and prod. cleavage while giving good space-time yields.
Patent DE-4212160-A1 (DE)
Title: Rear doors arrangement for four-door car - has rear doors sliding inside car by rotation about vertical axis on centre line when opened
Inventor: MAID LUDWIG
IPC: B60J10/80
Filed: 1992-04-10
Abstract: The door arrangement has sliding rear doors which rotate about a vertical axis on the centre line of the car. They are supported from this axis by radial struts at top and bottom and open by sliding back from the car sides into the region behind the rear seat. The struts are in bearings mounted in the car roof and car floor. The doors can be opened by hand or by an electric motor (7,10). There are sealing strips between the doors and the car panels behind which they slide. The rear screen is necessarily of semicircular shape. ADVANTAGE - Easy door to open and close, perfect passenger egress and suitable for confined parking spaces.