baber/WOPTO huggingface dataset:
Patent DE-2220100-A1 (DE)
Title: Soft magnetic ternary alloys - consisting of iron silicon and chromium, vanadium, cobalt or nickel
IPC: C22C38/34
Filed: 1972-04-25
Abstract: Alloys contg. 6 to 10-11 wt.% Si, and Cr 1-10, or V 1-9, or Co 1-20, or Ni 1-10 (in. wt.%), balance Fe, have low eddy current losses, relatively high electric resistivity, good magnetic props and high abrasion resistance. Suitable for mfr. of magnet cores or heads.
Patent DE-2220291-A1 (DE)
Title: Acid extraction - from dimethyldioxan synthesis reaction liquid, by two-step electrodialysis and ion exchange filtration
Inventor: NEMSOW MARK SEMJONOWITSCH
IPC: C07D319/06
Filed: 1972-04-25
Abstract: Acids are extd. from aq. reaction liqs. of dimethyldioxan synthesis (leading to isoprene mfr.) from isobutylene and HCHO by (1) a 2-step electrodialysis, in which (a) 60-80% mineral acids, w.r.t. initial concn. in liq., and 20-40 % HCOOH are removed in first step and diluate obtd. is led to 2nd electrodialysis step (b) where inorg. acid extn. reaches 90-95% and that of HCOOH extn. reaches 70-80%, and (2) dilutate obtd. is passed through an ion exchange filter to remove the residual 5-10% inorg. acid. The initial HCHO soln is pref. used as concn. liq. in 1st electrodialysis step, while water is used in 2nd step.
Patent DE-2233089-A1 (DE)
Title: Vertical shaft agitator - for liq also executes vertical oscillating motion
Inventor: KATO SEI
IPC: B01F11/00
Filed: 1972-06-30
Abstract: A liq. stirring appts. comprises a vertical revolving shaft mounted in a frame and having the agitator blades fixed to its lower end; the shaft revolves and also executes a vertical oscillating motion. Both movements are provided by the same drive mechanism which is mounted in a housing fixed to the top of the vessel, and comprises a revolving horizontal shaft crank with a bevel gear fixed to the big end of the crank and engaging second bevel gear on the upper end of a shaft which is connected by a universal joint to the vertical shaft of the rotor. As the horizontal crank shaft is driven, the bevel-gear arrangement provides the rotational motion while the up and down movement of the entire mechanism provides the vertical motion.
Patent DE-2250507-A1 (DE)
Title: Sealed bag esp for biological fluids - opened by cutting off end strip thus giving access to open end of neck
Inventor: KROMER HORST
IPC: B65D75/58
Filed: 1972-10-14
Abstract: A closed bag with sealed edge, esp. for biological fluids, is made in one piece with its neck, which communicates with the body and narrows down, pref. tapering uniformly, towards the body. The whole unit is pref. made by welding together two superimposed sheets around their periphery. Prefd. materials are weldable thermoplastics, or a composite sheet of aluminium, oriented polyester and polyethylene. The lower part of the neck is resilient, to receive an inserted tapping tube.
Patent DE-2252597-A1 (DE)
Title: Sewage settling basin travelling bridge - has pylons for rope suspension of bridge sections
Inventor: BOTSCH BERTRAM DIPL ING
IPC: B01D21/04
Filed: 1972-10-26
Abstract: A travelling bridge for pushing mechanisms in several rectangular parallel settling basins for sewage consists of a central section which rests on two travelling gears. The outer sections are hinged to the central section and rest on an outside travelling gear. Pylons over the central travelling gears protrude in both directions of motion over the bridge and support each section by ropes which transform bending stresses into compressive forces.
Patent DE-2265266-A1 (DE)
Title: Double impeller centrifugal pump - produces finely dispersed mixtures of gas in liquid with stable pumping action
IPC: B01F33/40
Filed: 1972-07-27
Abstract: Double impeller mixing pump produces stable mixture of two immiscible fluids, partic. air in water. The primary fluid is pumped by a primary impeller while the secondary fluid is drawn in and mixed by a second impeller. The housing contains a mixing chamber leading into a spiral exhaust chamber and thence to the exit port. Auxiliary mixing chambers, agitator discs with further chambers through which the mixture must pass and vertical arrangements with an auxiliary air fan impeller mounted to the shaft, may each be also included.
Patent DE-2305738-A1 (DE)
Title: Oil produced from coal - by non-catalytic process integrated with synthesis gas prodn
Inventor: TASSONEY JOSEPH PATRICK
IPC: C01B3/36
Filed: 1973-02-06
Abstract: Continuous process for converting coal into coal-oil in high yields comprises feeding coal (1/4-1/2 in dia. particles) as slurry in water (25-55 wt.% solids content) mixed with synthesis gas into a tubular retort at 600-950 degrees F and 1-400 atmospheres to produce an effluent which is in turn fed to the top of a fluidised bed (more synthesis gas fed at bottom of bed) operated at 600-950 degrees F and 1-400 (pref. 100-375) atmospheres. Product stream is cooled, and condensible coal-oil and water sepd. from the spent synthesis gas, carbon particles and gaseous impurities. The solid carbon material is fed to a synthesis gas generator, operated at 1200-3000 degrees F and 1-400 atmospheres, which yields synthesis gas product contg. 25-80 mole % H2. The gaseous impurities contain significant amts. of methane which, after removal of the acid gases and CO2, can be used as a non-polluting fuel gas. Also the H2-content of the synthesis gas made in the latter stages of the process may be increased by using a water-gas shift conversion system with CO and H2O at 1525-3000 degrees F and 1-400 ats. Process avoids the use of catalysts and the fine grinding and oxidn. pretreatment stages in the prior art. It may be applied to coal, oil-shale, tar sands and petroleum coke and yields coal-oil having reduced S and N contents (0.37-0.47% wt. max. respectively).
Patent DE-2306250-A1 (DE)
Title: Electrical heating element prodn. - by coating heat-resistant non-conductive support with mixt of organopolysiloxane, graphite powder and organic solvent
Inventor: ISHI NAOJIRO
IPC: H01B1/24
Filed: 1973-02-08
Abstract: Electrical heating element is produced by coating the surface of a heat-resistant electrically non-conductive support with a mixt. of an organo-polysiloxane (silicone resin) (I), graphite powder (II), and an organic solvent esp. for (I), and heating the coated support to 250-450 degrees C, e.g. for 80-300 mins., after drying. In a pref. modification, coating mixt. also contains powdered electrical insulator, esp. SiO2, mica, and/or MgO. Coating compsn. pref. contains by wt. 100 pts. (I), 80-250 pts. (II), sufficient solvent and opt. insulator. Pref. support consists of asbestos, heat-proof glass, ceramic, and/or heat-resistant fibre-reinforced plastic.
Patent DE-2314213-A1 (DE)
Title: Dough separator box - with inclined bottom flaps and detachable partitions in compartments
Inventor: GASKELL EDWARD STANLEY
IPC: A21C5/00
Filed: 1973-03-22
Abstract: A dough separator box for a dough sepg. and shaping machine has several dough reception compartments and two opposing bottom flaps across the full box width. The flaps can be turned from a closed posn. in which they are inclined 15-25 degrees downward from the horizontal, to an open posn. Tiltable partitions separate each compartment, additional partitions can be inserted between them.
Patent DE-2319574-A1 (DE)
Title: Succinic acid anhydride by dehydration of the acid - by boiling with hydrophilic solvent such as butyrolactone
Inventor: MESCH WALTER DIPL CHEM DR
IPC: C07C51/56
Filed: 1973-04-18
Abstract: Succinic acid is heated to boiling with a hydrophilic solvent which has a high dissolving power for succinic acid and its anhydride has a condensation temp. between 100 and 235 degrees C and does not form an azeotropic mixt. with H2O. The resulting vapour is condensed in a fractionating column, the H2O drawn off at the head of the column and the resulting succinic acid anhydride sepd. from the solvent by d tn. the process gives a frictionless continuous operation with full conversion to a pure prod. at low cost.
Patent DE-2330726-A1 (DE)
Title: Alignment jig for printed circuit production - is fitted with top and bottom adjusting plates for double-sided alignment
Inventor: SALA GEB FONTANA ANNA
IPC: G03B27/20
Filed: 1973-06-16
Abstract: Top and bottom transparent plates are held in rectangular frames which are fitted with screw thread adjusters to alter the alignment. The metal plate to be processed is held between the plates, and masks, and is aligned from both sides. Final processing is with the whole system being sandwiched together under vacuum and exposed. The printed circuit is produced by photoengraving, the circuit substrate plate being printed on both sides. Accurate alignment in the jig ensures that the images on both sides of the plate are always in the same relative alignment.
Patent DE-2330907-A1 (DE)
Title: Stabilising resistance jump of 'cold conductor' - contg. ferroelectric barium titanate rendered semiconductive by doping
Inventor: SEEBACHER BAERBEL DIPL PHYS
IPC: H01C1/14
Filed: 1973-06-18
Abstract: Resistance jump at temps. above the Curie point of a 'cold conductor' consisting of a ferroelectric barium titanate-base material having perovskite structure, rendered semiconductive by doping with e.g. Sb, and provided with fired-in Ag contact layers applied onto thin In or In-Ga layers, is stabilised by etching the ferroelectric material before the application of the contact layers with an inorganic or organic acid, an alkali metal hydroxide or H2O2. By this method, the undesirable decrease of the resistance jump at temps. above the Curie point of a material having good conductivity at normal temps (up to about 120 degrees C), which might result from the application of the contact layers, is prevented.
Patent DE-2333086-A1 (DE)
Title: Valve for pipes and containers for bulk material - has inflatable tube which seals against edge of swivel closure plate
Inventor: DENNENMOSER FRANZ
IPC: B65D90/62
Filed: 1973-06-29
Abstract: The circular tube inset in the wall of the coke-pipe is inflated and expands inwards to seal against the edge of the closure plate. Alternatively the tube is in the edge of the plate and seals against the grooved inner face of a ring set inside the pipe. The tube inflates after the plate closes and deflates before the plate opens. This delayed action is effected by a slotted joint in the linkage between the plate and its operating air-piston, since the piston-movement actuates a switch which controls tube inflation.
Patent DE-2334580-A1 (DE)
Title: Equipment for towing away motor vehicles - lightweight frame strapped onto vehicle
Inventor: ZIMMERMANN KARL
IPC: B60P3/12
Filed: 1973-07-07
Abstract: The system is based on the stretcher principle, whereby the vehicle is firmly strapped to an adjustable framework and towed either with the use of a pair of its own wheels or, if more appropriate, on a pair of special wheels arranged on stub-axles. The frame is assembled by inserting two main longitudinal members, carrying wheel locating pegs, into T-shaped end mounting tubes on a cross member which also carries the two bar. Locating buckles are carried on the longitudinals on which a main fixing strap is fastened over the top of the immobilised vehicle. With the frame firmly located under the chassis, the two bar is attached to the towing vehicle.
Patent DE-2335685-A1 (DE)
Title: Anti erosion of slopes or banks - eventual self teraccing system without special excavations or contouring
Inventor: SCHIECHTL HUGO MEINHARD DR
IPC: A01G1/00
Filed: 1973-07-13
Abstract: Prefabricated three dimensional skeleton frames made from wire or self rotting material, the latter strong enough to hold until the plant roots have taken over, are anchored across the slopes or banks. The three dimensional skeleton frames can be produced in square, roll, or cylindrical shape. Plants, set into this skeleton frame system, once they have taken root, will form their own terrace.
Patent DE-2339209-A1 (DE)
Title: Electromagnetic valve for vehicle automatic gearbox - operated by pivoted flap closing magnetic circuit
Inventor: KOCH ARWED V DIPL ING
IPC: H01R31/08
Filed: 1973-08-02
Abstract: An electromagnet has a magnetic circuit completed by two end plates and an arm pivotally attached to one plate to engage a contact on the other plate. The arm has connected to its mid point an operating shaft for a spool valve normally held in an on position by a first spring acting directly on the valve and a second spring acting on the arm for completing a hydraulic circuit. The valve lifts under pressure from a pump completing the magnetic circuit and disconnecting the pump. The valve is held closed magnetically until the pressure falls and spring forces open the valve. Moving parts have low inertia.
Patent DE-2347137-A1 (DE)
Title: Wrapped item suction lifting head - has boss inside sealing ring set back from level of plate
IPC: B66C1/02
Filed: 1973-09-19
Abstract: The mechanism is for handling items enclosed in a sheet of airtight plastic to avoid scratching, e.g. radio and television sets, having a ring-shaped seal protruding from the suction plate. In the space inside the seal are one or more bosses, pointing towards the surface of the item and set slightly back from it, to prevent the sheet being pulled off the item. The boss can be fitted in a widened portion in the suction plate connected to the vacuum pipe, or in a perforated plate accommodated in the widened portion. The latter can be of round section and situated in the centre of the suction plate.
Patent DE-2348683-A1 (DE)
Title: Installation unit with printed circuit - has one side of circuit board carrying conducting strips, and other side carrying electrical components
Inventor: ROLLINGER FERDINAND
IPC: H05K3/34
Filed: 1973-09-27
Abstract: The installation unit has an insulating spacing plate between the components which is common for several components; its surface is adapted to the components to be supported; its surface facing the circuit board is given a roughened surface, the surface which faces the components has formed supporting features which engage with the components. The components may be standard resistors, capacitors chokes and other elements which occupy considerable volume. The connectors for these components are printed on the other side of the plate and the connectors link up with pegs passing through the plate to contact the components.
Patent DE-2354424-A1 (DE)
Title: Saw-tooth voltage generator - has a large time constant and a capacitor charged through a constant current source
Inventor: KRUMREIM GERHARD
IPC: H03K4/502
Filed: 1973-10-31
Abstract: The capacitor is discharged through a discharge path. A switch alternately connects and disconnects the constant current source. An additional current source is connected to the discharge path, to whose current the constant current source current is added when capacitor voltage reaches a certain value. Only the sum current is sufficient to ignite the discharge path. The switch consists of a first transistor made alternately conductint and blocked by an A.C. voltage applied to its control electrode. This transistor controls a transistor in the constant current source.
Patent DE-2360255-A1 (DE)
Title: Eliminating nitrogen oxides from ammonia combustion gases - by catalytically splitting ammonia and reducing nitrogen oxides in effluents
Inventor: SCHMIDT REINHOLD DIPL ING
IPC: F01N9/00
Filed: 1973-12-04
Abstract: Nitrogen oxides are eliminated from gaseous effluents from internal combustion engines, or other devices using ammonia as a fuel, by passing the ammonia before the burning through a zone heated with effluent gases over an ammonia splitting catalyst and, after the burning, adding some ammonia to the effluent gases to reduce the nitrogen oxides over a catalyst. High degree of ammonia utilisation is achieved (>40%). The effluent gases are adequately purified. The burning temp. should not exceed 1500 degrees C as otherwise excessive formation of nitrogen oxides takes place.
Patent DE-2360704-A1 (DE)
Title: Bending tool for installation of hinge assembly - has spring loaded location pins for positioning hinge plates
Inventor: JORDAN KLAUS
IPC: B21D53/40
Filed: 1973-12-06
Abstract: Sheet metal hinges are used to equip a suitcase or trunk with a lid. Anchor lugs, which are attached to the hinge plates at right angles, are simultaneously pressed into the lid and trunk support frame and then bent over to provide secure location. This is done with the help of the tool in such a way that on installation of the hinge the trunk and the lid are forced into close contact thus avoiding the formation of an undesirable gap between trunk and lid.
Patent DE-2364252-A1 (DE)
Title: Modifying gypsum-rich cements e.g. high alumina cements - by addn. of stearic acid, and opt. sodium aluminate and citric acid
IPC: C04B24/08
Filed: 1973-12-22
Abstract: Setting of gypsum-rich cements is retarded and their early strength is increased by addn. of 0.03-0.5 wt.% of stearic acid and opt. 0.05-1 wt.% sodium aluminate and/or 0.01-0.2 wt.% citric acid. This method is esp. suitable for treatment of cements contg. e.g. 15% of gypsum and/or anhydrite and/or hemihydrate., to which the the high alumina content (e.g. alumina-belite cement); the 'regulated set cements' (rapid cements) must have also a high gypsum content. Adequate strength is obtd. even after one hour by the introduction of the additives specified above.
Patent DE-2365924-A1 (DE)
Title: Card grinder with motor driven disc - has disc moved on two guides while disc supporting slide is held by one guide
Inventor: BOVENSIEPEN HANS-FRIEDRICH DIP
IPC: D01G15/38
Filed: 1973-04-07
Abstract: The card grinder has a disc driven by an electric motor, whee the disc can be moved over the working width on two guides lying in the same plane. One of the guides passes coaxially through the grinding disc. A slide which serves as a bearing for the grinding disc is also supported on the second guide. The slide is held loosely and guided on the second guide through its own natural weight. The slide weight is carried only by the second guide. The electric motor is fitted to the side of the second guide opposite to the first guide and serves as counterweight to those parts of the slide lying between the first guide and the second guide.
Patent DE-2404249-A1 (DE)
Title: Concreting formwork comprising wide surface elements joined together - with straps on abutting edges supporting or engaging behind adjacent elements
Inventor: ULLRICH GEORG
IPC: E04G17/14
Filed: 1974-01-30
Abstract: The system is for use in assembling formwork for concreting walls or ceilings where special attention must be paid to the abutment of immediately adjacent large-surface form elements where the form membrane must be in exact alignment and esp. where this is of steel. The meeting edges of the elements are overlapped by straps fitted on their surface, one group of straps being fastened at one end to one edge and the other to the other edge, while the open ends of the straps, which project beyond the edges, support the adjacent element by engaging below or behind it. The open ends of straps may be serrated for interlocking together smooth transition from one element to the next can be readily achieved.
Patent DE-2406897-A1 (DE)
Title: Solar cells responsive to UV light - with a non-absorbing antireflective coating, pref. of amorphous tantalum pentoxide
Inventor: LINDMAYER JOSEPH
IPC: H01L31/0216
Filed: 1974-02-14
Abstract: A solar cell responsive to short-wavelength light (wavelength 0.k mu) has an antireflective coating on its surface which allows practically all the short-wavelength light to penetrate into the solar cell, this coating pref. consisting of amorphous Ta2O5 with a refractive index of 2.25. The Ta2O5 coating neither absorbs nor reflects UV radiation, thus increasing the yield (i.e. the ratio of output to input power) of the solar cell; e.g., a silicon cell with the Ta2O5 coating has a yield of 13.3%, compared with 10.8% for a conventional SiOx coating.
Patent DE-2407035-A1 (DE)
Title: Belt drive disc diameter adjustment - has internal swing lever to vary setting of outer segments sealing the disc
Inventor: DVORAK JAROSLAV
IPC: F16H55/52
Filed: 1974-02-14
Abstract: The system to alter the diameter of a belt drive wheel, particularly for use in a circular knitting machine, has a swing lever with one end in an adjustable mounting on the fixed component of the disc, the other end having a swing segment under spring tension. The design allows the diameter to be varied, in a form which does not allow the ingress of dirt into the operating components as the segments present a closed body, with a low mass.
Patent DE-2409824-A1 (DE)
Title: Rotating catch lock for metal framed glass doors - has two locking plates for pivoted latch
Inventor: KLEINDIEK MANFRED
IPC: E05B63/00
Filed: 1974-03-01
Abstract: The lock mechanism is protected by the lock housing and hence it is protected against tampering. The locking catch which is made up of a number of riveted or welded plates incorporates a hardened circular bolt which floats in its seat within the catch and hence it cannot be sawn through. The locking catch is pivoted by a locking member which is directly actuated by a key or a locking cylinder projecting lug or by means of a key housing sleeve. This plate has gear teeth which are in engagement with those on the rotating latch plate. The locking catch is held in the given position on locking by a separate locking lever within the housing. This lock can also be used for sliding doors and for double wing doors. The lock is highly compact and can be fitted into profiles of relatively small cross section.
Patent DE-2412502-A1 (DE)
Title: Rotor for small motor - has central region of shaft roughened by arcing process to ensure grip between shaft and rotor packet
Inventor: ZUCKMANTEL LOTHAR
IPC: H02K1/28
Filed: 1974-03-15
Abstract: The rotor, for a small electric motor has the central region of its shaft that accepts the rotor packet roughened and increased in diameter relative to the rest of the shaft by means of an arcing process. The arcing process uses the discharges between a large number of pointed electrodes and the shaft itself to produce craters in the central region of the shaft. The shaft is rotated in front of the electrodes. This roughened central region ensures a firm grip between shaft and rotor packet. The advantage of the rotor lies in its simple construction.
Patent DE-2413530-A1 (DE)
Title: Electric switch under rail head of railway rails - is fitted on rail into housing boltedon rail web and is actuated by flange on wheel
IPC: B61L1/04
Filed: 1974-03-21
Abstract: The switches are actuated by depressing a plunger and are placed under the heads of adjacent railway or tramway rails so that a pair of switches are located on a common centre line at right angles to the rails. This ensures that at least one switch is actuated if for example both switches cannot be actuated due to differential wear or tolerances of the wheels and rails. These switches are used for generating railway system control signals. The rail has a switch which is fitted into a separate housing which is held by transverse bolts in the rail web. These switches are fitted on the inner side of the rails and the housing can be made from plastics and the switch is adjusted and clamped by vertical and horizontal adjusting bolts.