baber/WOPTO huggingface dataset:
Patent DE-3939894-A1 (DE)
Title: New 14 alpha,17 alpha-bridged oestratriene derivatives
Inventor: KIRSCH GERALD DR
IPC: C07J53/00
Filed: 1989-11-29
Abstract: New 14alpha, 17alpha-bridged oestratrienes of formula (I) are claimed. When OR3 is in the alpha-configuration: R1, R2, R3 = H, -CO-R4 or -(CH2)n-CO2H, where n = 1-4. R1 may also be benzyl, 1-8C alkyl or 3-5C cycloalkyl; R4 = an organic gp. with up to 11C atoms. When OR3 is in the beta-configuration: R1, R2, R3 = H or 1-12C acyl; R1 may also be 1-8C alkyl. In both cases, A-B is an etheno or etheno bridging bond.  18 cpds. are specifically claimed, including 3-benzyloxy-14alpha, 17alpha-ethano- 1, 3, 5(10)oestratriene-16alpha, 17beta-diol and 14alpha, 17alpha-ethano -1, 3, 5(10) oestratriene-3, 16alpha, 17beta-triol. Also claimed is a method of preparing (I), e.g. from 3, 16beta, 17beta-triacetoxy-14alpha, 17alpha-ethano-1, 3, 5 (10)-oestratriene-16alpha-carbonitrile.  For treating disorders involving oestrogen deficiency, unit oral dose is 0.001-0.05 mg. Solns. for intramuscular injection contain 0.01-1 mg (I) per ml, and vaginal salves contain 0.1-10 mg (I) per 100 ml. For contraception, tablets contain 0.003-0.05 mg (I) and 0.05-0.5 mg of a gestagen.
Patent DE-3940169-A1 (DE)
Title: Pressure change generator for recording material exchange processes - has calibration device compensating for vol. differences
Inventor: HAUL ROBERT
IPC: G01N7/04
Filed: 1989-12-05
Abstract: The arrangement contains a symmetrical difference measurement arrangement with two vessels, one contg.  the specimen and the other serving as a reference.  Vol. differences are compensated for, taking account of the vol. of specimen inaccessible to the gas, using a calibration device. The rate of an exchange of material is recorded by measuring the changes in press., mole fraction or temp. of the gas or specimen with devices for determining the difference measurement value. USE/ADVANTAGE - For recording material exchange processes with liq. or solids quickly, accurately and with high time resolution.
Patent DE-4000960-A1 (DE)
Title: Power wheel for bicycle - consists of one movable, and one stationary section, with drive engine
Inventor: STOLL KURT DIPL ING
IPC: B62M7/12
Filed: 1990-01-16
Abstract: The bicycle wheel consists of a section (9), which is fastened to the frame (1,2) and a second disc-shaped wheel section (15), connected to a running tyre (16) and rotatable relative to the first section. A drive unit (18) is located between the two wheel sections. The drive unit consists of an e.g. electric motor (19), fastened to the stationary wheel section and transmission elements (21), to move the rotating wheel section. The stationary section may also carry an energy accumulator (37) for the motor. USE - Power wheel for bicycle with electric drive.
Patent DE-4013445-A1 (DE)
Title: Water jug or watering can - fitted with permanent magnets for water treatment
Inventor: GRUBER BRUNO
IPC: C02F1/48
Filed: 1990-04-27
Abstract: A novel water jug or watering can has one or more permanent magnets which are fitted to a water inlet opening, an air space, a water outlet pipe or a water outlet slit or spout and which are arranged so that the magnetic field acts across or along the water flow direction. ADVANTAGE - The water is strongly magnetically treated so that it is esp. useful for watering plants, for sprinkling on cloth during ironing, for filling steam irons or for making coffee or tea.
Patent DE-4013916-A1 (DE)
Title: Bore outer surface shape determining appts. - has contactless inductive sensor element with coil generating electromagnetic field
Inventor: JACOB LOTHAR DIPL ING
IPC: G01M13/00
Filed: 1990-04-30
Abstract: An arrangement for determining the shape and quality of the surface of a cylindrical metal workpiece such as a bore, bolt or pin contains an inductive, contactless sensor element (6) which is moved along the measurement surface. The workpiece (11) and sensor element act like a fitting with play with the sensor element as the inner or outer element and guided concentrically w.r.t. the workpiece surface. The element contains a coil (9) which generates an electromagnetic field distributed about its surface which interacts with workpiece surface and influences the coil parameters. ADVANTAGE - Can detect threads and thread defects in a single measurement process.
Patent DE-4016001-A1 (DE)
Title: Training munition, esp. tracer bullet - giving improved target pattern and reduced loading of pistol, with propellant charge sleeve in shell casing
IPC: F42B12/38
Filed: 1990-05-18
Abstract: Training munition, esp. a 40mm calibre tracer bullet, has a propellant charge sleeve (1) with an ignition cap (2) and a propellant charge (3), a shell casing (4) with a bullet tip (5), and a seal between the sleeve (1) and the casing (4). Sleeve (1) is inside the casing (4), extends to the sleeve base (6) and has, in front of the propellant charge (3), a cavity which is open to the bullet tip (5). ADVANTAGE - Design avoids overloading of the pistol and leads to an improved target pattern.
Patent DE-4016639-A1 (DE)
Title: Covered current path testing in integrated circuit - by measuring surface magnetic field distribution using sensor moving in raster pattern
Inventor: WELLER DIETER DR
IPC: G01R31/315
Filed: 1990-05-23
Abstract: The method tests covered current paths in a body which are insulated w.r.t. the body surface. The magnetic field distribution (H(x,y,z,t) at the surface (2a) of the body caused by the current in the current paths (2, 3) is scanned according to a defined raster pattern using a magnetic field sensor. The field distribution is electronically processed and fed to a visual display device. A drive mechanism is actuated according to the raster pattern and moves the sensor in two orthogonal directions over the body surface. USE/ADVANTAGE - Esp. for testing highly integrated circuit structures. Gives definite indications of positions and states of hidden current paths without damaging components.
Patent DE-4020787-A1 (DE)
Title: Producing actual flow value for gaseous medium control - by drawing calibrated flow of atmospheric air into parallel flow subsequently returned to flow channel
Inventor: WILL ANDREAS ING GRAD
IPC: F24F11/04
Filed: 1990-06-27
Abstract: A method of generating an actual flow value for controlling the flow of a gas involves extracting a parallel flow (3) of the gas from the flow channel (1) and feeding it back into the channel downstream. A calibrated (6) flow (8) of atmospheric air is drawn into the parallel flow (3) and this flow is detected (9) to produce the actual value for controlling the flow of gas in the flow channel. USE/ADVANTAGE - Controlling vol. flow in air conditioning systems. Prevents degradation of, or damage to, sensor by contaminants or corrosive substances in controlled flow whilst maintaining accurate control of esp. value in laboratory.
Patent DE-4023263-A1 (DE)
Title: Heat exchanger with cross-flow fan - has alignment of dividing wall in form of tongue
Inventor: THIEN GERHARD DIPL ING DR
IPC: F04D17/04
Filed: 1990-07-21
Abstract: The heat exchanger has a cross flow fan partially enclosed by a guide plate and an outlet housing formed by a dividing wall in the form of a tongue between the inlet and outlet channels. The boundary line (11) of the tongue (6) running in the longitudinal direction of the impeller (1) includes at least in part on acute angle relative to the parallel lines (12a) of the impeller axis (12). ADVANTAGE - Heat exchanger system with a high working efficiency and only very low noise generation.
Patent DE-4026951-A1 (DE)
Title: Planar commutator for electric motor or generator - has carbon segments set into through passageways in formed body of insulation
Inventor: BREMKES THEO
IPC: H01R39/06
Filed: 1990-08-25
Abstract: A planar commutator for use in electrical machines has a surface formed with carbon segments (3) located on metal laminates (4) to provide transmission to carbon brushes. The metal laminates have edges formed in hook shapes for connections by wires to the coils. The metal laminates are set into a base of insulating material (6). The carbon segments are shaped (7) to project into the main body of material. The projections are tapered for secure retention. ADVANTAGE - Firmer retention of carbon segments.
Patent DE-4027910-A1 (DE)
Inventor: SCHMIDTKE WOLFGANG
IPC: B65G39/073
Filed: 1990-09-03
Abstract: A support roller for a traction and/or support means is proposed which permits good rolling characteristics of the drive and/or conveyor belt and a large degree of self cleaning of the support roller. The support roller has a plurality of cylindrical support elements (8) arranged next to one another and spaced at intervals from one another on a shaft (1). The support elements (8) are provided on the outer circumferential surface with annular grooves (9) running parallel to the circumferential direction of the support roller. The end faces of the support elements (8) are arranged parallel to one another and inclined in the same direction. This produces sinusoidal roller tracks. <IMAGE>
Patent DE-4031771-A1 (DE)
Title: Fluidised bed waste gas cleaning for pollutant removal -  esp. for sulphur oxide obtd. from flue gases, by feeding to granulator, spraying reactant and removing prod.
Inventor: GRUNERT LOTHAR DR
IPC: B01D53/50
Filed: 1990-10-06
Abstract: Pollutant removal comprises (a) feeding waste gases to a fluidised bed granulator having a material recycle system, classifying discharge-, spray- and side feed-device(s) above the fluidising grating; (b) sprying reactant or sorbent in liq. form through the spray device; and (c) withdrawing obtd. waste product through the classifying discharge device. USE/ADVANTAGE - Esp. for SOx removal from flue gases. Improved pollutant removal and reduced bulk of obtd. waste prod.
Patent DE-4032164-A1 (DE)
Title: Analogue read=out processing circuitry for vertical magnetic recording - employs flip=flop and two univibrators for suppression of insignificant zero-crossings only of read=out signal
Inventor: GOTTFRIED NORBERT DR
IPC: H03K5/153
Filed: 1990-10-10
Abstract: The D input of the flip-flop (FF) is addressed by the threshold value signal (TS) from a threshold detector (DET1) with negative feedback (R2). The clock pulse (CK) is provided by a locking network (LN) operating on the unipolar output (UZS) of an Exclusive-OR gate (EXOR 1) opened by delayeed (t1) and undelayed signals from the zero-crossing detector (DET2). A similar univibrator combination (EXOR2,t3) following the flip-flop (FF) produces the data signal (DS). ADVANTAGE - With reasonable amt. of circuitry distinguishes between significant and insignificant zero-crossings and produces largely error-free data, without preliminary signal transformation or signal/noise ratio degradation.
Patent DE-4033111-A1 (DE)
Title: Tool magazine plate for machine tool - is loaded and unloaded by means of special machine
IPC: B23Q3/155
Filed: 1990-10-18
Abstract: A machine tool, which is computer controlled, has a tool magazine plate (16) in which the required tools are stored and which can be transferred to and from the machine tool. This magazine plate (16) is loaded by means of a machine with a base plate (1) which supports a carrier plate (20). This carrier plate (20) has rows of holes (25) which support the tools (33) with their shanks (32), which fit in the machine tool chuck, held uppermost. The magazine plate (16) has rows of holes with each hole having a groove for an O ring. When this plate (16) is pressed downwards onto the tool shanks (32) the shanks are gripped by the O rings and the tools are lifted clear of the carrier plate (20). The magazine plate is unloaded by a plate (11) fitted with rods (37) which is pressed against the tool shanks. USE - Computer controlled machine tools.
Patent DE-4038936-A1 (DE)
Title: Cpd. needle for stitch-bonding with unsymmetrical point - has inclined surface to reduce force required to penetrate fabric
Inventor: BOBE ANETTE DR ING
IPC: D04B35/06
Filed: 1990-12-06
Abstract: A cpd. needle for warp knitting and esp. stitch bonding machines has an incline positioned near the needle point. The needle point itself is nearer to the centre line than the surface which guides the tongue. The incline makes an angle DELTA of between 3 to 10 degrees with the guide surface. An imaginary line drawn through the needle point parallel to the guide surface is only displaced by a very small distance. The incline can be straight or curved and need not necessarily intersect the circumference of the needle point tangentially. ADVANTAGE - The force required to penetrate the fabric is reduced because the effective angle presented by the needle point when in a deflected position is less than that of a conventional needle. Due to the forces imposed on the needle it always deflects and the needle angle BETA is increased by angle ALPHA to give an effective angle GAMMA. The needle according to the invention has an effective angle EPSILON.
Patent DE-4101677-A1 (DE)
Title: Determn. of activity of drug dosage forms - takes into account effects of additives and includes standardising drug and assessing the influence of any additives
IPC: G01N33/15
Filed: 1991-01-22
Abstract: A process for determining the quality and activity of a drug dosage form is characterised as follows: (a) the pure drug is standardised against the pure physiological reference factor; (b) in the drug-reference factor determn., the results are expressed as a percentage concn. dependence within precisely defined time limits; (c) the direct influence of additives used in the mfr. of the dosage form on the concn. of the drug-reference factor prod. is determined by adding the pure additives in amts. directly proportional to those used in the mfr. of the dosage form, the additives being added individually, in various combinations and in the combination corresp. to the dosage form; (d) in the case of dosage forms contg. a combination of drugs, the direct effect of each drug on the respective drug-reference factor prod. concn. is determined analogously, also taking additives into account; (e) in order to provide a general specific determn. of activity, the tests are performed on the isolated cells of the drug-reference factor medium after disease induction
Patent DE-4103263-A1 (DE)
Title: Very fine needle shaped ferrite particles with low coercive strength - made by pptn. of ferric oxide in a suspension with needle-shaped ferric oxy-hydroxide particles of added ferrous salt by oxidn. with air
Inventor: KLINGELHOEFER PAUL DR
IPC: C04B35/26
Filed: 1991-02-04
Abstract: The low coercitive strength ferrite has the general compsn. AxByFe2+zO4 in which A and B are a bivalent ion from the group Ni, Cu, Mn, Mg, Ca and Zn and the sum of x,y and z is 1. The feature is that the ferrite particles are needle-shaped with a dia. of less than 0.5 micron, and a ratio of length to width of 2-20, and have a coercitive strength of less than 1 KA/m. The saturated magnetism of the material, measured in an external magnetic field of 400 KA/m, is greater than 70 nTm3/g. A mfg. process is also claimed. A watery suspension of needle-shaped ferricoxyhydroxide, with a specific surface area of 15-100 m2/g and a length to width ratio of 5-30 is held under a N2 ambient. Then a watery soln. of a ferrous salt and a watery soln. contg. salts of the elements A and B is added at a temp. of 20-100 deg.C. By the addition of a base the pH is adjusted to a value between 5 and 11. By passing air through the ferrous-ions are oxidised until the concn. of the ferrous ion has been reduced to 25% of its original value. The resulting solid is filtered out, washed, dried and ground. The powder is then heated to 700-1000 deg.C. USE/ADVANTAGE - The process results in smaller particles of ferrite with a more suitable crystal structure than currently available. The particle size distribution is controlled and the Curie temp. can be adjusted by variation of the parameters x,y and z. The material has a low coercitive strength and a high saturation magnetism. It is used for the absorption of electromagnetic radiation, esp. radar waves, or as absorption medium for electromagnetic radiation in medical hyperthermic treatment of tumours.
Patent DE-4104319-A1 (DE)
Title: Reversibly crosslinkable polymethacrylate moulding compsn. - comprising methyl-methacrylate, furfuryl (meth)acrylate, vinyl] monomer(s) and bis:maleimide cpd.
Inventor: KNEBEL JOACHIM DIPL CHEM DR
IPC: C08F8/30
Filed: 1991-02-13
Abstract: A polymer compsn. thermoplastically workable at above 200 deg.C comprises (A) a vinyl polymer of Mw less than 500,000 g/mol, comprising (1) 50-99.9 methyl methacrylate (MMA); (2) 0.1-15 wt.% furfuryl methacrylate (FMA) and/or furfuryl acrylate; (3) 0-49.9 wt.% other vinyl monomers; and (B) a bismaleimide cpd. of formula (I). R = aliphatic and/or aromatic gp. with 4-3C which can further include other heteroatoms or atom gps. The wt. ratio of (A):(B) is 99.8-90:0.2-10. The compsn. contains under 100 deg.C stable cross-linking bridges through the reaction of the furyl gp. and (I). Pref. (A) comprises 90-99 wt.% MMA, 0.1-5 wt.% FMA and 0.1-5 wt.% 1-5C alkyl acrylates. (A) has a Mw of 50,000-200,000. USE/ADVANTAGE - Provide compsns. which can be covalently crosslinked, giving improved properties and which, on heating, give the reversal of crosslinking resulting in newly thermoplastic compsns. The compsns. have relatively low mol. wt., are easily formable and can be used many times. They have higher temp. stability and good mechanical stability. They can be recycled. A mixt. of 97.5g MMA, 2.5g FMA and 300g methylene chloride was heated to 70 deg.C, mixed with AIBN, kept at 70 deg.C for 15 hrs., the polymer recovered and 88.7g polymer of Mw 68,600 was obtd. The polymer was dissolved in methylene chloride to give a 30-50% soln. to which was added 4,4-bis(maleimido) diphenylmethane. The soln. was applied to a glass plate, and crosslinked at 50 deg.C. . (
Patent DE-4105166-A1 (DE)
Title: Self closing, time delay valve for fluids - has valve seat controlling fluid flow operated through elastic membrane by hydraulic accumulator and spring
Inventor: SCHULMEYER DIETER
IPC: F16K21/12
Filed: 1991-02-20
Abstract: A valve (10) for controlling fluids has an inlet side (22) fed with fluid under pressure, an outlet side (24) and a valve seat (26). The valve seat (26) is closed and opened by a moving piston (140 allowing the fluid to flow from inlet (22) to outlet (24). Operation of the piston (14) is by a hydraulic accumulator (32) coupled with a spring (36). The accumulator (32) operates the valve closure piston (14) through an elastic membrane (16), the accumulator oil, typically silicone, being separate from the fluid passing through the valve (10). USE/ADVANTAGE - The valve functions in particular as a self-closing time delay valve e.g. for showers, allows valve closure force to be varied and play due to mfg variation can be compensated.
Patent DE-4107834-A1 (DE)
Title: Hollow displacement auger - has drive shaft extending longitudinally through its centre, with pointed tip, and has anti-buckling discs fitted at intervals along drive shaft, requiring minimum torque for control
IPC: E21B10/44
Filed: 1991-03-12
Abstract: A displacement auger is hollow (12) with a pointed tip (26) and a drive shaft (22) passing longitudinally through its centre, which terminates in the pointed tip (26). Displacement segments (12.1;22.1) of hollow tube (12) and drive shaft (22) are of the same length (L), while basic segments (12.0;22.0) of the hollow tube (12) and drive shaft (22) are of different lengths (LO,L). There are positioning discs (48) fitted to the drive shaft (22) between segments (22.1) with a little radial play inside the tube (12) as an anti buckling device. USE/ADVANTAGE - The support device for the drive needs only a min. torque to control it.
Patent DE-4109237-A1 (DE)
Title: Electronic digital circuit for division of coded numbers - has control circuit for control of decimal point position using shift register moves
Inventor: MERKLE PAUL
IPC: G06F7/52
Filed: 1991-03-18
Abstract: The electronic circuit is provided for the division of numbers in 5211 weighted code. The position of the decimal point is controlled by a circuit (60) that generates a number of outputs (1-5) that are used to control shift operations of the various shift registers in the system. The circuit has a number of flip flops (61-63) set by inputs from the processing circuits. A general control input provides reset Logic gates (91-94) which provide output signal generation. ADVANTAGE - Provides control of output decimal point position.
Patent DE-4109404-A1 (DE)
Title: Spindle-type press with flywheel and clutch - has friction blocks in elastic bushes in support
Inventor: EGGELS HEINZ
IPC: B30B15/10
Filed: 1991-03-22
Abstract: The spindle-type press has a flywheel and a screw drive mechanism to which a clutch ram and a clutch plate forming the ram piston are coupled. Friction blocks are fitted in recesses in a support between the flywheel and clutch plate. Bushes of elastic material are fitted in the support recesses, bearing on the outside against the surrounding portions. The blocks are a close fit in the bushes, which can be of plastic such as polyurethane or polytetrafluoroethylene. The recesses and bushes can form elongated holes, and the blocks can be of corresp. shape. ADVANTAGE - Longer life of blocks and support.
Patent DE-4109487-A1 (DE)
Title: Spinner sliver delivery - has a feed tube leading from raised sliver can to a lower spinning station
Inventor: STAHLECKER FRITZ
IPC: D01H5/00
Filed: 1991-03-22
Abstract: The sliver feed tube (18), to carry sliver from a can (6) above the spinner down to a spinning station (2), has its entry positioned at a level above the height of a sliver can (6) at its holding point (10). The tube has an entry sliver guide, at least near the centre of the sliver can holding point (10), to take the sliver (4). The can holding point (10) has a drive (12) to rotate the can (6). ADVANTAGE - The assembly is suitable to deliver fine sliver material from a can supply.
Patent DE-4114428-A1 (DE)
Inventor: HELLBUSCH DIETER
IPC: F16L3/22
Filed: 1991-05-03
Abstract: A spacer for two or more cables 32, 34, 36 or cable cores, the spacer having an annular outer portion and a star-shaped inner portion, with the portions forming together openings for the support of the cables or cable cores extended therethrough, wherein an integral body of plastic material is provided comprised of at least two portions 12, 14, 16 interlinked through a hinge portion 18, 20. In another embodiment (Figures 3 & 4) the star portions (82, 84, 86) lock together at the centre and the body is provided with holes (72) for the injection of resin. Another embodiment (Figure 5) receives three sector shaped cables and retains them in the recesses with pairs of fingers (114). <IMAGE>
Patent DE-4116865-A1 (DE)
Title: Porous composite bodies prodn. - by coating ceramic particles with silicon carbide and joining together with silicon solder
Inventor: BRENNFLECK KARL DR
IPC: C04B37/00
Filed: 1991-05-23
Abstract: Method of producing composite bodies made of particulate graphite or ceramic material coated with silicon carbide consists of soldering the particulate material together using an elementary silicon or silicon-silicon carbide dispersion material containing free silicone as the solder. USE/ADVANTAGE - Producing composite ceramic bodies with pores which are sealed from outside gas and liquid sources. The final body has good dimensional accuracy and no internal stresses are produced which could lead to mechanical deformation