baber/WOPTO huggingface dataset:
Patent DE-3907167-A1 (DE)
Title: Process for producing a dehumidifier element
Inventor: KUMA TOSIMI
IPC: B01J20/28
Filed: 1989-03-06
Abstract: By alternating layering of a corrugated paper web and a planar covering paper web which both have low density and are composed of inorganic fibres such as ceramic fibres, a honeycomb matrix is formed having many small channels passing through their opposing surfaces. Paper webs, before or after the layering, are burnt with hot air in order to remove organic substances and, before or after layering, are impregnated with waterglass. The impregnated honeycomb matrix, after heating and drying, is moistened in aqueous aluminium sulphate or magnesium sulphate solution in order to precipitate out a metal silicate hydrogel on the paper webs and on the intermediate spaces between the paper fibres, whereupon the honeycomb matrix is washed and dried in order to convert the hydrogel into an adsorbent metal silicate aerogel which forms the main constituent of a mechanically firm dehumidifying element thus obtained. The metal sulphate solution is cooled in order to crystallize out and remove sodium sulphate. Further metal sulphate is added to the metal sulphate solution in order to repeat the process for producing a further dehumidifier element.
Patent DE-3921386-A1 (DE)
Title: Hanging and securing element - is for variable length hose system and has lateral projection with hole through it
Inventor: LEGROM FRIEDRICH
IPC: F16L3/12
Filed: 1989-06-29
Abstract: The basic element is for a variable length cooling and  lubrication hose system. It has a lateral projection (2) with a hole (3) through it, for either securing or hanging the hose. The hose may pass through a bore through the basic which can fit into a matching hemispherical cup at the other end of the adjacent element. USE - Support element for cooling and lubrication hose.
Patent DE-3922121-A1 (DE)
Title: Flexible circuit board for electrical connections - has strip formed conductors with contacts to provide interconnections
Inventor: POPPE EMIL
IPC: H05K3/34
Filed: 1989-07-05
Abstract: A flexible circuit board is produced to give connections for the front panel of electrical equipment. The foil has a centre section (7) with holes (4) for alignment of the foil on the front plate. Formed on the foil are a number of different fields (A,B,C,D). Connections between the fields are provided by conductor arms (23-39) that have contact pads at the ends (40). These can be used to provide multi pole connections. The foils is bonded into position on a panel or board. ADVANTAGE - Simple means of providing large number of connections.
Patent DE-3934144-A1 (DE)
Title: Operation control circuit for low voltage DC relay - has voltage from mains divided down by bias capacitor in series with rectifier
Inventor: RETTENMAIER HELMUT
IPC: H01H47/22
Filed: 1989-10-12
Abstract: The switching circuit has a bias capacitor (C1) and mains rectifier (GL) that are coupled in series with the a.c. mains that can be in the range of 98 to 240 V. Coupled to the output of the recitifier is a smoothing capacitor (C2), in parallel with a switch (S1) and the relay (REL), which is typically a 24V D.C. device. The relay together with the bias capacitor operates as a voltage divider to ensure that a minimum a.c. voltage is applied. ADVANTAGE - Simple means of providing operating voltage.
Patent DE-3936165-A1 (DE)
Title: Centrifugal separator drum - in two parts with specified side angles and radii for annular triangular grooves
Inventor: DIETRICH HEINZ
IPC: B04B1/10
Filed: 1989-10-31
Abstract: The drum for a centrifugal separator consists of two parts, an upper and a lower part, joined by a union ring. The lower part has above the centring cone a triangular groove with specified angles and specified radii. The upper part also has a triangular groove with specified angles and radii. ADVANTAGE - This absorbs the elongation due to centrifugal forces and prevents damage during the assembly.
Patent DE-3937011-A1 (DE)
Title: Driving mechanism for spindle - has inserts with rounded faces between outer races of ball-bearing units forming nut
IPC: F16H25/24
Filed: 1989-11-07
Abstract: The driving spindle mechanism comprises a screwed spindle (1, 2), against which eccentric ball-bearing units (3, 4) run, enclosing it to form a nut. Their outer races are joined together. To give greater rigidity, inserts (9) with rounded surfaces are fitted between the outer races, and between them and end-pieces (16, 17). The contact surfaces between the inserts and the races can be at the centre of the latter, and thus opposite to each other in relation to the central vertical axis. USE/ADVANTAGE - Easy adjustment of driving spindle mechanism.
Patent DE-3938101-A1 (DE)
Title: Pressure control valve for vehicle anti-locking braking system - has non-return valve providing shorter route to vent point for reverse press medium flow
Inventor: GOEBELS HERMANN DIPL ING
IPC: B60T15/02
Filed: 1989-11-16
Abstract: The press control valve has a 2-part outlet chamber (3, 7) for the press medium incorporating an electromagnetic outlet valve (9, 10) for coupling to a vent point (17) operated by a piston acted on by the press within a control chamber in the closed position of the valve (9, 10). The press medium from the press source is supplied via an electromagnetic inlet valve (47, 2) with a membrane (43) acting as the operating piston, with a further valve (50) lying behind the inlet valve (47, 2) in the direction of the press. medium outlet (4) and closing in the opposite direction. The further valve (50) is provided by a non-return valve. ADVANTAGE - Reduced vent time.
Patent DE-3941119-A1 (DE)
Title: Sprocket assembly for derailleur change speed gear - incorporates hub which can slide axially on wheel hub
Inventor: GREISS EGBERT
IPC: B62M9/14
Filed: 1989-12-13
Abstract: The bicycle has a derailleur-type change speed gear. It has three sprockets (1,2,3) attached to its rear wheel. The three sprockets are formed integrally with a common hub (4). The hub has a splined bore which fits over the matching splines (5) of the wheel hub. The sprocket assembly can drive the rear wheel but has a limited deg. of axial movement. This axial movement enables the sprocket which is being driven by the chain to align itself with the chain wheel. This feature reduces friction between the chain and chain wheel and sprocket, and improves the mechanical efficiency of the bicycle. USE - Bicycles with derailleurs-type change speed gear.
Patent DE-3941904-A1 (DE)
Title: Elastomer compsn. for hydraulic accumulator balloons - contains acrylonitrile]-butadiene] rubber, carbon black, DBP, zinc oxide, sulphur etc. and specified mixt. of accelerators
Inventor: SIMEONOVA MARIA JANAKIEVA DIPL
IPC: C08L9/02
Filed: 1989-12-19
Abstract: Filled, plasticised rubber compsn. or mixt. (I) for the prodn. of balloons for hydraulic accumulators contains 100 pts.wt. acrylonitrile-butadiene (AB) rubber, 1-5 pts.wt. ZnO, 1-3 pts.wt. stearic acid, 40-60 pts.wt. furnace black, 8-12 pts.wt. dibutyl phthalate (DBP), 0.5-1.5 pts.wt. N-phenyl-N'-isopropyl -p-phenylenediamine (II), 0.5-2 pts.wt. 2,2,4-trimethyl-1,2-dihydroquinoline (III), 0.5-2 pts.wt. 4- or 5-methylmercapto -benzimidazole (IV), 1-3 pts.wt. paraffin, 0.1-0.5 pts.wt. S, 1.5-2.5 pts.wt. thiuram and 1.5-2 pts.wt. N-cyclohexyl-2-benzthiazolyl sulphonamide (V). USE/ADVANTAGE - W.r.t. prior-art compsns., (I) gives vulcanised prods. with better physical/mechanical properties, good resistance to hydraulic oil and nitrogen and greater reliability in operation, combined with good rubber/metal and rubber/rubber adhesion.
Patent DE-3943506-A1 (DE)
Title: Vehicle heater vent pipe vessel - has valve in vent line, whose opening varies according to heater through flow
Inventor: FRECH STEFAN DR ING
IPC: F01P11/02
Filed: 1989-07-25
Abstract: The heat exchanger vent pipe (3), is esp. for a heater in a vehicle cooling circuit, extends from an upper region of the heater inlet (1) to an expansion vessel (9), where it ends beneath the coolant surface (10). A valve (7) in the vent line allows the through flow to be varied. Pref. the valve opening decreases as the heater flow increases. USE/ADVANTAGE - Heat exchanger in vehicle. Gas bubbles collecting in the heater are removed without unduly affecting the heater performance.
Patent DE-4002479-A1 (DE)
Title: Dental-impression spoon - has ductile biting plate between oral and vestibular portions
Inventor: GRABOSCH REINHOLD DR
IPC: A61C9/00
Filed: 1990-01-29
Abstract: The impression spoon for use in dentistry has rigid oral and vestibular portions, and a biting plate (4), the latter being of ductile material, typically plastics and with a memory characteristic. There can be a groove (10) in the vestibular portion (2) to accommodate the edge (8) of the plate, and also one in the oral portion for the other edge. The grooves can be chamfered at the edges to aid insertion. ADVANTAGE - Economy of material, and reduces time necessary for taking an impression.
Patent DE-4007538-A1 (DE)
Title: Cutting tool with two blades - has one steel and one ceramic blade or blade inserts
Inventor: BORKOTT RUDOLF
IPC: B23D29/02
Filed: 1990-03-09
Abstract: The cutting tool has two knife or scissor blades travelling past each other. One (6) of the blades is steel, and the other(5) of ceramic material. The steel blade can have a sharp cutting edge (15) of 30 deg to 60 deg angle, while that (14) of the ceramic one can be less sharp, typically from 60 to 90 deg. The tool can comprise a glass-fibre-reinforced plastics scissor frame with inserted blades. USE/ADVANTAGE - Scissors or cutting tool give good cutting and long life.
Patent DE-4012030-A1 (DE)
Title: Hydrocarbon blowing agents with b.pt. above 38 deg. C - used for foamed plastics mouldings esp. polyurethane integral foams
Inventor: LEITNER HORST DIPL CHEM
IPC: C08J9/14
Filed: 1990-04-13
Abstract: Hydrocarbons with a b.pt. of greater than or equal to 38 deg C are used as blowing agents in the prodn. of articles moulded from foamable plastics, esp. flexible polyurethane integral foam. USE/ADVANTAGE - The hydrocarbons, esp. a higher boiling petroleum fraction, are more environmentally friendly than halogenated hydrocarbons, and with polyurethane integral foams give an outer skin of improved quality.
Patent DE-4012319-A1 (DE)
Title: Prodn. of lectin from Chondrilla nucula - has lymphocyte cyto-protective activity and is useful in treatment of e.g. AIDS or related diseases
Inventor: MUELLER WERNER E G PROF DR
IPC: C07K14/435
Filed: 1990-04-18
Abstract: Prodn. of lectin from the fungus Chondrilla nucla is new. USE/ADVANTAGE - The lectin may be used in pharmaceutical prods. It has a cytoprotective effect on non-infected lymphocytes and may therefore be used for treating AIDS or AIDS-related diseases. Dose is 2-20 (6-7) mg/kg for 4-8 weeks, administered orally, parenterally or rectally. The lectin, which imparts a specific colour to cells, may also be used in histology. In an example, lectin has a strong inhibitory activity on the expression of HIVp24 and p15 in infected CEM cells. Expression of the proteins is assessed by IFA. Cells incubated with 0.03 microg/ml of lectin produce 75% of p15 and 81% of p24 (100% in control cells) and cells incubated with 1 microg/ml of lectin produce 36% of p15 and 28% of p24.
Patent DE-4015557-A1 (DE)
Title: Fuel injection system for IC engine - has high pressure chamber connected permanently with pressure operated injection valve which is defined by piston surface
Inventor: WESTPHAL CHRISTIAN DR ING
IPC: F02M59/32
Filed: 1990-05-15
Abstract: The pressure piston has three control surfaces (14, 15, 12), with a surface (12) lying opposite the high pressure surface (7) to define a permanently non-pressurised third control chamber (22). The control surface (14) is continuously acted upon by the fuel supply pressure. The second control surface (15) lies in a second chamber (18), which is intermittently acted on by the fuel pressure across a multiway valve (20) and a throttle (32), and intermittently is not under pressure. The multiway valve (20) is controlled, so that it only connects the second control chamber (18) with pressure conducting fuel supply (6) across the throttle (32) during the metering phase of the fuel. The bodies (29, 30) of the valve (20) connect the second control chamber (18) with the non-pressure fuel return line (21), for the purpose of an activation of the fuel injection operation. USE/ADVANTAGE - Fuel injection system for IC engine. Maintains advantages of existing design with redn. of constructional cost and improves accuracy of fuel metering.
Patent DE-4024547-A1 (DE)
Inventor: KAPL GERHARD
IPC: F16D69/02
Filed: 1990-08-02
Abstract: A friction lining consists of a binder matrix into which additives have been integrated. In order to obtain improved mechanical properties, in particular higher heat resistance, it is proposed that the binder matrix be an inorganic silicate-containing binder matrix.
Patent DE-4029001-A1 (DE)
Title: Rotary iron@ cleaning cloth -  has cleaning strips held by contact locking strips to give easy exchange
Inventor: WORTMANN ERNST W
IPC: D06F67/00
Filed: 1990-09-13
Abstract: Cleaning cloth with lateral cleaning strips on the upper and/or lower side, has at least one of the cleaning strips held to the fabric length by contact locking strips for exchange. Pref., each contact locking strip is in a ribbon strip. Each of the cleaning strips extends over the whole cleaning cloth width at equal and/or different intervals from each other in the direction of travel. At the entry side of the fabric, the cleaning strips are at the upper and/or under side of the material, composed of emery material or steel chips, held by contact locking strips for quick release. ADVANTAGE - The cleaning strips are easily attached to the fabric, without requiring stitching and the associated wear and damage to a sewing machine. The cleaning strips can be detached at will for the cloth to be washed.
Patent DE-4032749-A1 (DE)
Title: Constructional system for buildings -  uses large wall plates joined via splicing plates of flat material engaging through plate vertical face side apertures
Inventor: HAAS WERNER DIPL ING
IPC: E04B1/61
Filed: 1990-10-16
Abstract: Apertures (2) in at least the vertical face sides of the wall plates enable the latter to be joined by connectors with splicing plates of steel provided at least on one face side with ring parts. The connectors with their splicing plates are so inserted in the wall plates that they extend out of the wall body on the face side (4), with the ring parts symmetrical to the vertical face side of the wall plate. The ring parts are made of solid steel material, and the splicing plates are pref. of holed steel strip. The rings can be circular, but not necessarily, oval, elliptical or other geometrical shapes being permissible. USE - For building construction, using large wall plates, suitably joined.
Patent DE-4042015-A1 (DE)
Title: Road vehicle-heating system - has thermal generator supplying energy for transport of heat-transfer medium
Inventor: HANSEN FRIEDRICH
IPC: F24H1/06
Filed: 1990-12-28
Abstract: The heating system is partic. for vehicles, motor caravans, boats etc. It has a combustion chamber (3) for the fuel, and a passage (6) with transport system (4) for the heat-transfer medium. A thermal generator (7) supplies energy to the transport system, its contact points (8,9) being between the hot and cold sides of the heater (1). The hot contact point can be at the combustion chamber or flue. USE/ADVANTAGE - Vehicle heating system safe, reliable, and quiet in operation, and requires no external electric supply.
Patent DE-4042112-A1 (DE)
Title: Drive mechanism for front-load video cassette recorder - has cassette holder guided to its rest position where cam loses contact with switch turning motor off
Inventor: OH TAEK SEUNG
IPC: G11B15/675
Filed: 1990-12-28
Abstract: The cassette holder (c) is shown in the open position. After a small movement inwards a switch (11) is put into the ON position by an arc shaped cam (9) on the driver arm (6). The motor then drives a screw gear (7), and a gear pair (4,8) which operates the driver arm (6). - The cassette holder is guided (2) to its rest position where the cam (6) loses contact with the switch (11) turning the motor off.
Patent DE-4107203-A1 (DE)
Title: Nail scissors with clippings container - has collecting tray attachable to both blades to cover gap between them
Inventor: LAZAR DUMITRU
IPC: A45D29/02
Filed: 1991-03-04
Abstract: The nail scissors has a collecting tray (11) held on the two blades (7,8) to collect the nail clippings. The tray widens out as the scissors are opened. The tray can be pushed detachably onto the blades of the scissors and can have a section which beginning in the area of the scissors joint (4) is directed inclined away from the blades. A second section adjoins the first section and runs up to the points of the blades. ADVANTAGE - Since tray is attached to both blades the space between same is always covered.
Patent DE-4109442-A1 (DE)
Title: Steel syringe for spinal anaesthesia - has external and passage diameters tapering to insertion point and aperture
Inventor: SYDOW FRIEDRICH-WILHELM DR
IPC: A61M5/32
Filed: 1991-03-22
Abstract: The steel syringe for spinal anaesthesia comprises a straight cylindrical tube into which a removable stylet is inserted, an insertion point, and a front aperture for the tube passage. The external tube dia., and the dia. of the passage taper steadily at the forward end on which the point is situated, the latter and the aperture being at the apex of the cone formed. The stylet fills the taper end all round the periphery. The cone apex can have an oblique long ground face, with or without front or rear facet. The end of the ground face can be curved at the axis of the tube. ADVANTAGE - Easy use without risk or breakage inside bod s
Patent DE-4112320-A1 (DE)
Title: Injury protection padding for small children - comprises cover of foam material protect-head and spine and held by straps
Inventor: PONS ANDRE
IPC: A41D13/05
Filed: 1991-04-16
Abstract: The equipment protects small children, particularly of the crawling age or when learning to walk, from injury to the head or spinal column and the back and sides of the head from shock or injury. ADVANTAGE - Minimum risk of injury to head and back.
Patent DE-4112559-A1 (DE)
Title: Liq. container with hydrostatic level sensor, esp. fuel tank - has jet pump for emptying measurement tube with blocking valve and differential pressure sensor and requiring no additional power
Inventor: NUSSER HERMANN
IPC: B60K15/06
Filed: 1991-04-17
Abstract: A liquid container with a hydrostatic level sensor has a return connector (19) opening into the container, a small dia. measurement tube (24) extending from above the max. liquid level to the container floor, a pressure difference sensor (24), a blocking valve, a device for emptying the measurement tube and an evaluation unit. The instantaneous level is determined from the difference between the pressure difference sensor signals for the filled and empty tube. The emptying device has a jet pump (23) at the lower end of the tube which operates on the venturi principle. This generates suction in the tube which can be randomly connected to the return connector. USE/ADVANTAGE - Esp. for motor vehicle fuel tank. Uses very simple pump for emptying measurement tube which requires no additional power source.
Patent DE-4113144-A1 (DE)
Title: Partial heat storage device - consists of hollow tile which is filled with water and exposed to solar radiation
Inventor: KNEIFEL WOLFGANG
IPC: F24J2/34
Filed: 1991-04-23
Abstract: A partial heat storage device which utilises heat storage effects, thermo-siphon effects, and temp. drop effects, is in the form of a hollow roof tile. The hollow tile has an upper part (2), which has a relatively large internal volume, and has a quasi-capillary lower part. The interior of the tile is filled with a heat transfer medium such as water. The lower part of the tile is exposed to solar radiation so that the heated water rises and flows into the upper part (2). Heat is transferred from the upper part by circulating air around it or the heat may be radiated into the interior of the building. USE/ADVANTAGE - Utilising solar radiation to heat a building thus saving energy.
Patent DE-4118794-A1 (DE)
Title: Lubricant-free, toothed belt drive planetary motion mixer, for pastes and viscous prods. - has central, vertical drive shaft terminating above mixing container and bearing spacer rotatable around drive shaft axis etc.
Inventor: BERKER KARL-A
IPC: B01F7/30
Filed: 1991-06-07
Abstract: Vertical paste mixer with a cylindrical container and planetary motion rotating agitator shafts in addn. to a drive motor for the rotational and circulatory motions of the agitators, has a central, vertical drive shaft terminating above the mixing containers at least one agitator shaft entering the mixing vessel and arranged parallel to the drive shaft (26), a bearing spacer rotatable around the axis of the drive shaft supporting and journalling the agitator shafts as a planetary carrier mechanism and toothed belt drives connecting the drive shaft with the agitator shafts and the bearing spacer. USE/ADVANTAGE - Low dead-space, planetary motion, toothed belt driven mixer which is essentially lubricant-free in the mixing area, to avoid contamination of products with lubricant residues
Patent DE-4119023-A1 (DE)
Title: Sample magazine for head-space gas chromatography - has large step size for increased sample throughput
Inventor: BOEGE DIETRICH HERMAN
IPC: G01N30/18
Filed: 1991-06-10
Abstract: Virtual size redn. of the sample magazine for headspace gas chromatography is achieved by replacing 'n' individual steps of the magazine by 'm' large steps of size 'ss'. In appts. for carrying out the process, the sample magazine is round and the sample locations are arranged in a circle or several concentric circles, or the sample magazine has a rectangular shape. When the sample magazine is rectangular, it pref. has a guide for linear transport of the sample holders in several directions. ADVANTAGE - Higher sample throughput is achieved, even when the needle downtime is greater than or equal to the temp. hold time divided by the number of sample locations, while maintaining the large number (n) of sample locations.
Patent DE-4123902-A1 (DE)
Title: DC generator with armature transverse field compensation - has compensation coil enclosed by slotted and pref. laminated rotor and wound on core which is fixed w.r.t. stator
IPC: H02K23/22
Filed: 1991-07-18
Abstract: The coil (12), pref. of insulated Cu wire, is wound on an iron core (13) and immobilised against rotation within the rotor (14) which pref. is of laminated iron rotating between poles (16, 18) of a pref. steel stator (20). The armature windings are set into slots (15) and the main magnetic field is produced by stator windings (17, 19). The position of the core (13) can be adjusted for max. generator efficiency with transverse field reduced by the compensation winding in series. ADVANTAGE - Efficiency of generation is improved by compensation of transverse field of armature.
Patent DE-4141261-A1 (DE)
Title: Pneumatic support for paper feed in process printer - has pairs of air jets angled to support paper and maintain suction hold
Inventor: KOCH MICHAEL
IPC: B65H5/22
Filed: 1991-12-14
Abstract: The pairs of pneumatic jets (14) are at different angles and arranged in a pattern to provide a cushion support for the paper feed. The relative angles of the jets leaves a central region of lower pressure to hold the sheet. The supports are positioned on both sides of the paper feed. The paper is held at a wider spacing than conventionally and is not damaged by mechanical guides. ADVANTAGE - Improved guidance of paper through processing, no separate suction lines required.