baber/WOPTO huggingface dataset:
Patent DE-4203433-A1 (DE)
Inventor: EHRHART PETER DR
IPC: G01D5/20
Filed: 1992-02-06
Abstract: A position detector determining the relative position of the rotor of an electric motor with respect to its stator has a power transmission device in the form of a coil (S1) at the stator end. The power is received in a coil arrangement (R1) revolving with the rotor. The current flows through another coil arrangement (R2) which has rectangular or sinusoidal sections distributed over the circumference. At the stator end, two coils with sinusoidal variation are arranged over the circumference of a circular track. In these coils (S2,S3), two signals with sinusoidal variation dependent on the rotor position are generated which are phase-shifted with respect to one another. These phase-shifted signals are processed in evaluating electronics (16) to form position signals. <IMAGE>
Patent DE-4205685-A1 (DE)
Title: New readily processable thermally stable polyamideimide ester] polymers - prepd. from new amide-imide bisphenol cpds. and bifunctional acid chloride gp. carboxylic ester cpds.
Inventor: GREBER GERD PROF DIPL ING DR
IPC: C07D209/48
Filed: 1992-02-25
Abstract: Amidoimidobisphenols (I) of formula (1), where Ar = o-, m-, or p-phenylene, bisphenylene, or naphthylene (opt. substd. by one or more 1-6C alkyl or 1-6C alkoxy, hydroxy, or halogen), or bridged bisphenylene gp. of formula (2) X = satd. or unsatd. 1-6C alkylene, -O-, -S-, -SO-, -SO2-, -CO-, -COO-, -CONH-, -NH-, -N-alkyl of 1-20 atoms, (sic, in text -N-(1-20 C alkyl)-), -N-(6-60 C aryl)-, or -N:N-. ADVANTAGE - (I) have high thermal stability and low glass temp. and are sol., e.g. in N-methylpyrrolidone (III), and/or fusible, so are readily processed. In an example, trimellitic anhydride (10g, 54.04 mmol) and 2.81 g (26.02 mmol) m-phenylenediamine were heated together in 150 ml anhydrous (III) at 60 deg.C for 1 hour then at reflux temp. for 2 hours. Reaction mixt. was poured into 800 ml acetone and ppt. was filtered off, washed with acetone, and dried. Field, 10.3g (87 %) 1,3-bis(1,3-dihydro-1,3-dioxo-5-carboxy-2-(1H)isoindolyl)benzene (IV), m.pt. 395 deg.C. Thionyl chloride (2.09g, 17.52 mmol) was added dropwise to suspension of 4g (8.76 mmol) (IV) in 100 ml dry (III) at 20 deg.C. After 1 1/2 hours the acid dichloride formed had dissolved, and soln. of 1.9g (17.52 mmol) 4-aminophenol and 1.4g (17.52 mmol) dry pyridine in 50ml dry (III) was added over 30 minutes. Reaction mixt. was stirred at -25 to -20 deg.C for 2 hours, warmed to room temp., reacted for 2 hours longer, then poured into 1l water. The ppt. was sepd., dried, washed with water, then freed from (III) by heating at 150deg.C. Yield 4.8g (86 %) 1,3-bis(1,3-dihydro-1,3-dioxo-5-(4-hydroxyphenyl)carboxamido-2- (1H)isoindolyl)benzene (V), m.pt. 333 deg.C. (V) (2 g, 3.13 mmol) was dissolved in soln. of 0.5g (12.5 mmol) NaOH, 1.10g N-cetyl-N,N,N-trimethylammonium bromide as phase transfer catalyst was added, followed by soln. (added rapidly) of 0.64g (3.13 mmol) terephthaloyl dichloride in 20ml dry CHCl3. The white ppt. was filtered off, washed with water, and dried. The (I) (yield 87 %) was sol. in (III) and had Tg 220 deg.C, decompsn. temp. (5% wt. loss in thermogravimetric analysis sample) 415 deg.C, inherent viscosity 0.51 dl/g.
Patent DE-4207012-A1 (DE)
Title: Bobbin exchange system - has operating sequence with bobbin carrier and loader to prevent empty loader movement
Inventor: TANAKA MASAYOSHI
IPC: B65H67/04
Filed: 1992-03-05
Abstract: The system to exchange fully wound bobbins from a textile machine, e.g, a rewinder, has a loader for the supply unit which takes the empty bobbins from the supply to be carried to the bobbin carrier (30) location. The bottin carrier (30) is rotated by 180 deg. round a vertical axis to present full bobbins to the loader which, when they have been transferred, takes them to the supply point and passes them over. At the same time, full bobibns are transferred by an auxiliary unit, such as a robot, from the bobbin store to the bobbin carrier (30) for the next bobbin exchange cycle with the loader. Pref. the bobbin holder assembly has a holder which rotates 180 deg. round a horizontal axis, and a pair of generally parallel shafts fixed to the holder while they lie on the horizontal axis. The shafts are at a gap from each other which is larger than the dia. of a spindle working with the bobbin holder unit. A pair or carrier arms are mounted radially to each carrier shaft, at a gap from each other along the horizontal axis. The carrier arms are positioned so that their outer displaced ends are closer to each other than their inner ends. ADVANTAGE - The productivity is increased by eliminating empty runs by the loader.
Patent DE-4209994-A1 (DE)
Title: Electric tea or coffee maker
Inventor: LIETZ MANFRED
IPC: A47J31/46
Filed: 1992-03-27
Abstract: The tea or coffee maker has a heat source (16) for heating the water in a fresh water container (1), the heated water supplied via a riser pipe (7) to a filter (11) containing ground coffee or tea leaves, supported above a reception jug (19). A valve (4) blocks the reverse flow of water to the fresh water container.The heat source is heated by a boiler (2) with a vol. which is a fraction of the vol of the fresh water container and is coupled to the base of the container via a coupling line (3) including the non-return valve (4), blocked when the boiler is filled and by the steam pressure in the boiler.
Patent DE-4212335-A1 (DE)
Title: Versatile high density polyethylene@ flat sheet extruder - has inlet fitted with plunger to pressurise and feed granules through bores and at right angles into main temp. controlled outlet bore
Inventor: BRADIC MARIJAN
IPC: B29C48/08
Filed: 1992-04-13
Abstract: Extruder has a feed/pressurising device and an outlet die of desired cross-section. The die is in a head fitted with temp. regulator and the extruder head is connected by a bored member with at least one plunger to feed and pressurise the material. Each outlet of the feed and pressurising device is connected to a system of bores whose outlets lie together in the direction of the length of the right angled entrance of the extruding bores. A thick-walled bush fits in a block and leads beneath to a bore of the same dia. The top of the bush widens out in its bore to the chamber in a head. The head is bored for temp. control. The bore extends to a short length in the block member before it divides into pairs of sec. bores in one plane. These lead to parallel bores, which are on the centre line of the hoizontal extruding passage between its top and bottom halves polyethylene granules, pref. with added organic peroxide, are fed in to the chamber. The centre plunger presses them out through the bores; from there they are sintered in the bore and expressed through the main passage; here the polymer is plasticated and crosslinked before being extruded as flat sheet. ADVANTAGE - The extruder can plasticate, separate out crystals, sinter, crosslink, and change the viscosity of molecular structure of the polyethylene. It can produce relatively thick sheets in high quality
Patent DE-4215366-A1 (DE)
Title: Suction cleaner esp. for ring frames - has suction head with opening quadrants which completely enclose spindle
Inventor: GUSE ROLF DIPL ING DR
IPC: D01H11/00
Filed: 1992-05-08
Abstract: Cleaner has a suction head which completely encloses the wharve region of the appropriate spinning position. Cleaning head can have a scraper, cutter or wharve knife. Annular suction nozzle has hinged, quadrant shaped closing sections. Inner circumferences has a channel leading to a suction connection and a movable guide plate has a slot and guide pin and is connected by links to the hinged quadrants. Suction head is opened and brought up to the appropriate spinning position then closed round the spindle by an overcentre spring to its working position. Recess can accommodate a wharve knife to remove yarn warps which are immediately sucked away by the nozzle. USE/ADVANTAGE - Suction cleaner is esp. for a ring frame and facilitates suction cleaning of fast moving machine components.
Patent DE-4219064-A1 (DE)
Title: Glow protection device for stator winding of electronic machine - has 1st layer penetrable by impregnation resin and superimposed 2nd textile layer impregnated by resin-repellant cpd., opt. pretreated with silicon resin or paint
Inventor: HERZOG KURT
IPC: H02K3/40
Filed: 1992-06-11
Abstract: The groove part of the stator winding is provided with a 1st glow protection layer (8) penetrable by impregnation resin and soaked in it, on which a 2nd layer (9) is applied which is provided with an impregnation resin-repellant medium. This 2nd layer locates directly on the groove wall. The 2nd protective layer (9) is pretreated with a Si resin or Si paint filled with graphite powder. USE/ADVANTAGE - Used to protect the stator winding of an electrical machine against glow.
Patent DE-4222622-A1 (DE)
Title: Pressure receiving probe esp. for brick chimney and oven - has tube having open end as nozzle having mouth for outlet of pressure medium which is smaller than internal dia. of tube
Inventor: MARON GREGOR
IPC: G01L19/00
Filed: 1992-07-10
Abstract: The probe has a straight tube with a small internal dia. in proportion to its length and a connector on one end for attachment to a measurement instrument and pressure medium source. The other end is open and has a section with the same or slightly smaller internal dia. than the remainder. The open end forms a nozzle (3) with a mouth bore (12) for outlet of the pressure medium smaller than the reduced internal tube dia.. The length (13) - dia. (14) ratio of the mouth bore is between 0.05:1 and 50: 1. The nozzle can be a mouthpiece rigidly and permanently fixed to the tube. USE/ADVANTAGE - Probe prevents blockage of tube end and has long operating life.
Patent DE-4225076-A1 (DE)
Title: Flexible coating for protecting rock and fittings in mining operations - comprises sand, cement flame-retardant e.g. organo:phosphate, liq. component e.g. latex or rubber and other additives
Inventor: WEBER ADOLPHE
IPC: E02D31/02
Filed: 1992-07-29
Abstract: The coating consists of a powdered mixt. of quartz sand, cement, a flame retardant, a viscosity enhancing agent, metal oxides, a crosslinking agent and a liq. component. The grain size of the quartz sand is 0.05-1 mm. The cement is most pref. Portland cement, Type CP 345 or 55. The flame retardant is an organophosphate, SbO3, alumina hydrate, sodium tetraborate or a halogenated deriv. thereof. The viscosity-enhancing agent is bentonite, sodium polyacrylate or cellulose. The antistatic cpd. is a quat. ammonium cpd. The crosslinking agent is a mixt. of a polyethoxylated fatty alcohol and a polyethoxylated fatty acid. The liq. component is an aq. dispersion of a butyl acrylate/styrene copolymer or a latex or a rubber, plus inert fillers such as carbonates or colourants. USE/ADVANTAGE - The coating is used in underground operations, especially in mining, to protect rock and fittings from the effects of water, air and gas, thus preventing the risk of e.g. corrosion or explosion, etc. The coating material does not have to be applied as thickly as a cement coating, and is much less likely to crack than is a cement/phenol resin coating. The coating is flexible, antistatic and non-combustiblerr
Patent DE-4230409-A1 (DE)
Title: Detector of objects with high conductivity using zero or max. coupled system - contains additional coil mechanically coupled to, and operating as, either transmitter or as receiver to suppress primary field effects
Inventor: WALTL BERND DR
IPC: G01V3/11
Filed: 1992-09-11
Abstract: A receiver coil located at a distance from a transmission coil receives the signals from the transmission coil. An evaluation unit processes the useful signal component of the received signals which also contain an unknown, primary field effect component caused by the uncontrollable deviations of the receiver coil from a defined position in relation to the transmission coil. An additional coil is rigidly connected to the transmission coil as an additional transmission coil or to the receiver coil as an additional receiver coil. The evaluation unit uses the signals from the additional coil unit to suppress the primary field effect. USE/ADVANTAGE  - E.g. for searching for metal objects underground. Eliminates primary field effects and enables detection threshold to be minimised.
Patent DE-4230727-A1 (DE)
Title: Linear inverter for power supply to sensitive measuring appts. - employs multiplying D=A converter for sync. adaptation of control voltage to maintain output within tolerances
Inventor: ANTOHI NIKOLAUS DIPL ING
IPC: H02P13/06
Filed: 1992-09-14
Abstract: A linear amplifier (1) incorporating a driver (2) and push-pull output stage (3a,3b) is fed from a battery (4). It is excited by an oscillator (5) and the output voltage level is adjusted by means of a transformer (6) with tap-changing by battery-voltage threshold discriminators (7) and relays (8) which simultaneously switch the signal voltage supplied from read-only memory (12) via a multiplying D/A converter (11). A capacitor (10) across the load caters for the intervals between breaking and making of the relay contacts. A variant embodiment uses a clock generator and counter to address the ROM. USE/ADVANTAGE - For vehicular measuring appts. or uninterruptable power supplies, efficiency of inverter is increased with output transformer ratio varied stepwise inversely w.r.t. input voltage.
Patent DE-4231732-A1 (DE)
Title: Multi=cell battery charging method - connecting cells to diagnostic device and regulating charge voltage according to highest clamp voltage
Inventor: RETZLAFF WERNER
IPC: G01R31/36
Filed: 1992-09-22
Abstract: A micro-controlled charging device contg. a charger and voltage-free recharger analyses the state of charge of a battery contg. several sub-batteries (1.1, etc.). At least one sub-battery can be switched (2.1,etc.) in connection with one of a network of double lines (3.1, etc.) connected to a diagnosis circuit. A voltage measurement device (10) produces a charge current signal for the battery charger computed using a control algorithm so that the voltage of the cell with the highest clamp voltage is changed to and maintained at a desired voltage level. The desired voltage is pref. the manufacturer's voltage limit for the optimum charge characteristic. USE/ADVANTAGE - Enables multi=cell batteries to be charged while reliably preventing overcharging of individual cells and enabling extension of battery life.
Patent DE-4232258-A1 (DE)
Title: Capacitive sensor for mechanical to electrical magnitude conversion - has central planes of triple stacks in measuring sections connected to active and earthed planes respectively
Inventor: BRANDL MANFRED DIPL ING
IPC: G01D5/24
Filed: 1992-09-25
Abstract: Three conductive planes (1-3) arranged one above another are insulated to form a combination of a reference capacitance (CR) and a subdivided measuring capacitor (4,5). The outer planes (1,2) of the reference capacitance are earthed. One section (4) of measuring capacitor has its centre plane (3) earthed in common with the lower plane (2). The other section (5) has only the lower plane (2) earthed and the other two planes (1,3) connected together to the top (1) of the first section (4). USE/ADVANTAGE - Esp. for measurement of distances or positions. Device can be mfd. by available integrated circuit technology.
Patent DE-4236538-A1 (DE)
Title: Encapsulated spark gap for overvoltage discharge - has two electrodes with collar-shaped edges forming dish shape, and glass insulator welded to collar edge
Inventor: BOY JUERGEN DIPL ING
IPC: H01J17/40
Filed: 1992-10-22
Abstract: The spark gap consists of two electrodes (1,6) gas-tightly interconnected by a hollow cylindrical glass insulator (3) in their external region. The flat electrode faces are spaced by a thin, perforated insulating layer (4). The electrodes are dish-shaped with a collar-shaped edge (2) and abut with their faces both sides of the insulating layer. The glass insulator has its front side welded into the collar-shaped edge of the electrodes. Pref. the electrodes are of an iron-nickel-chromium alloy, and the insulator is of soft glass with a transformation point between 450 and 500 deg.C. The thin insulating layer is a mica foil. ADVANTAGE - Simple design and mfr. with reliable protection of spark gap gas atmosphere.
Patent DE-4236656-A1 (DE)
Inventor: ZIEGLER BODO DIPL ING
IPC: H01T21/02
Filed: 1992-10-30
Abstract: A metal housing (10) for spark plugs, heater plugs, sensors, is produced in several shaping steps by a cold extrusion process. In a known manner, this metal housing (10) has a longitudinal bore (11), a first end section (16) arranged at its outer side in the longitudinal direction and designed as a key polyhedron with a width E across corners, an adjacent cylindrical central section (17) with a diameter D and then a second cylindrical end section (18) whose diameter d is smaller than the diameter D of the central section (17). In order to simplify shaping during the cold extrusion process and to increase the service life of the tool, the outer side of the metal housing (10) is designed in such a way that the width E across corners of the first end section (16) is as large as the diameter D of the central section (17).
Patent DE-4236796-A1 (DE)
Title: Protective door with mechanical accident preventer - is resiliently coupled to holding elements, with spring force holding it in frame on meeting obstacle
Inventor: WALENTA ALEXANDER GEORG
IPC: E06B9/80
Filed: 1992-11-01
Abstract: On encountering an obstacle, the protective door is held in a frame automatically by the spring force of the holding elements. The door holding is carried out by compression sheet metal plate engaging catches in the frame. The plates are fitted on a shaft and are actuated by a tensile spring via a cable and a lever coupled to the shaft. The door locking is secured by a spring force on the plate engagement. The holding elements are typically belts. ADVANTAGE - No need for proximity sensor, as the door itself as a contact probe.
Patent DE-4238295-A1 (DE)
Title: Cellular mobile radio communication network with simpler fixed stations - employs frequency re-use in sub-cells each limited to range of particular transceiver among several at their base station
Inventor: BOEHM MANFRED DR
IPC: H04W16/00
Filed: 1992-11-13
Abstract: Each cell (C1-C4) of the network contains one fixed base radio station (e.g. BTS1) and is divided into a number of concentric sub-cells (SC11 etc.), each of which is served by a different transceiver with constant transmission and reception parameters. To avoid co-channel interference the overlapping outer sub-cells (e.g. SC13,SC23) of adjacent cells do not utilise the same pair of HF carriers. The depicted embodiment shows how five channels (A-E) are sufficient for allocation among the 12 sub-cells of a network of four cells. ADVANTAGE - Received signal level within a sub-cell can fall only by less than 10 dB so that base stations need no technically complex dynamic regulation of transmission level.
Patent DE-4238878-A1 (DE)
Title: Hollow rotationally symmetrical ceramic article prodn. - by centrifugal casting of chemically bonded ceramic material
Inventor: HEATH GARY DR
IPC: B28B21/32
Filed: 1992-11-19
Abstract: Prodn. of a hollow rotationally symmetrical article is effected by casting in a mould which is rotated about a longitudinal axis during and/or after filling to produce a centrifugal action. The improvement is that (a) the mould is a closed centrifugal casting mould, (b) the casting material is an organic additive-free, chemically bonded ceramic material which chemically hardens at 50-200 deg.C and (c) the centrifugal force is sufficient to cause air bubble transport out of the viscous material towards the centre and thus out of the cast article before the material hardens. ADVANTAGE - The article has high strength, without requiring a high sintering temp., and can be fibre reinforced.
Patent DE-4240030-A1 (DE)
Title: Bowden cable window lifting mechanism - has enclosed pulley wheels for sharp changes in direction and recessed fastenings for frame
Inventor: KLITZSCH HANS-JOACHIM
IPC: E05F11/48
Filed: 1992-11-28
Abstract: The window pane raising and lowering device uses a Bowden cable (1) which may run in a groove in a frame (10) which may act as a guide surface for a sliding member on the glass pane. Fastenings (7) for the frame are located in recesses (600) of a depth (T) sufficient to avoid the fastenings fouling the sliding member. At the top and bottom of the frame the Bowden cable changes direction by the wire being passed round enclosed pulleys on bearings (18'). These bearings are made by deforming metal sheet to make a hollow cylinder which may be spread at its top end to prevent the pulley wheel falling off. USE/ADVANTAGE - Simple guidance system for window pane raised and lowered using Bowden cable
Patent DE-4302486-A1 (DE)
Inventor: RACHID NABIL
IPC: F01K7/44
Filed: 1993-01-29
Abstract: A method of operating a water/steam cycle of a thermal power station, for example a steam power station, combined heat and power station or combined cycle power station, having a preheating section for condensate, a steam generator, a steam turbine with a condenser, a condensate treatment system downstream of the condenser, and at least one condensate pump upstream of the condensate treatment system. The treated condensate is subjected to tapped steam from the steam turbine and/or from a steam reheat system in the preheating section and is heated thereby before it is supplied to the steam generator. The condensate is subjected to a pretreatment before reaching the preheating section and its degasification is dispensed with when it subsequently flows through the preheating section. A water/steam cycle of a thermal power station includes a preheating section, a steam generator, a steam turbine downstream of the steam generator, a condenser and a condensate treatment system downstream of the condenser. The preheating section has at least one low-pressure and/or high-pressure preheater and at least one feed pump for feeding condensate from the preheating section into the steam generator.
Patent DE-4305556-A1 (DE)
Title: Rotary stacking container
Inventor: BANASKIWITZ HORST
IPC: B65D21/04
Filed: 1993-02-24
Abstract: The invention relates to a rotary stacking container having a cross-section which tapers from the top downwards. The invention consists in the fact that at least one side wall is stepped. <IMAGE>
Patent DE-4308850-A1 (DE)
Title: Hollow-thread mat
Inventor: RIESOP PETER
IPC: B01D46/54
Filed: 1993-03-19
Abstract: The invention relates to a hollow-thread mat segment, in which the hollow threads (2) are arranged essentially parallel as weft threads and are tied in and connected to one another by means of stitch-forming warp threads (1), characterised in that the weft thread is an endless hollow thread which is not cut off. The invention also relates to a hollow-thread mat produced from this and to a process for producing it.
Patent DE-4310055-A1 (DE)
Inventor: HUNGER WALTER DR ING
IPC: B60D1/02
Filed: 1993-03-27
Abstract: The coupling bolt 5 of the proposed trailer bolt coupling is moved upwards into its release position by actuating a hand-operated hydraulic pump 35. For this purpose, it has a blind hole which serves as a hydraulic cylinder space 15 and into which a rigidly attached piston rod 19 with piston 17 projects, the actuation pressure of the hydraulic fluid being introduced into the rod space of the hydraulic cylinder through a hole 21 which extends in the piston rod and opens above the piston. A release valve 55 which is triggered by the drawbar rod of a trailer when it is being hitched allows the hydraulic fluid to flow off again so that the coupling bolt moves back down again to its coupled position under the effect of a coupling spring 25. <IMAGE>
Patent DE-4312971-A1 (DE)
Title: Process and apparatus for aerating waters
Inventor: UHLENBRUCK CLAUS
IPC: B01F3/08
Filed: 1993-04-21
Abstract: The invention relates to a process and an apparatus for aerating waters.