baber/WOPTO huggingface dataset:
Patent DE-1902063-A1 (DE)
Title: Controlling oil or gas fired furnaces over - wide feed-ranges
IPC: F23N1/02
Filed: 1969-01-16
Abstract: A constant regulator is used at high feed-rates and a two-point regulator at low feed rates, and a means is provided for interchange between the two regulators.
Patent DE-1931787-A1 (DE)
Title: Furnace for cross-flow firing in an inert- - gas atmosphere
Inventor: DANIEL DIOSZEGHY PROF DR
IPC: C21D1/767
Filed: 1969-06-23
Abstract: The decomposition hot-gas flow is directed over the charge-material in the lower part of the furnace and upwards along the wall opposite the heat-throat of the furnace and then allowed to flow-back in the upper part of the furnace. The temp. of the charge-material is raised by the increased rate of heat-exchange between the two branches of the U-shaped gas-stream.
Patent DE-1939173-A1 (DE)
Title: Selective acylation of cardiac active - steroids
Inventor: RUDOLF MEGGES DR DIPL-CHEM
IPC: H01R13/11
Filed: 1969-08-01
Abstract: Hydroxyl groups which are not to be acylated are protected as a borate or arsenate ester. After (opt. partial) acylation of the remaining OH groups, the protecting groups are removed under mild conditions.
Patent DE-1960212-A1 (DE)
Title: Transfer procedure for a core unit in a - nuclear reactor
Inventor: SANTEN AART VAN
IPC: G21C19/02
Filed: 1969-12-01
Abstract: Transfer procedure for the core unit of a nuclear reactor where the unit consists of a fuel cassette and a control rod and the fuel cassette contains a number of fuel cells and at least one guide tube for the control rod which is longer than the fuel elements. A special tool is guided to the core unit and engaged around a section on the control rod where this section projects out of the fuel elements during the transfer. The core unit is then pulled out of its exit position and guided to another positon while the fuel cassette rests on the control rod. The tool engagement is then released.
Patent DE-1962771-A1 (DE)
Title: Process and equipment for making shaped - bricks from swollen clay pellets
Inventor: BRINDLINGER OTTO
IPC: B28B7/42
Filed: 1969-02-15
Abstract: The swollen pellets are heated to a high temp. by pressing in an insulated mould. The mould has low thermal capacity, low pressure applied for a short time on it produces a moulding which is substantially free from stress which after a short period of surface cooling is stored for thorough cooling.
Patent DE-2013706-A1 (DE)
Title: Plate support frame for lead acid electro - conductive
IPC: H01M50/534
Filed: 1970-03-21
Abstract: The current collecting frame, either of lead or lead alloy, may be simultaneously a support for the active material of the plates or purely as a current collection joining a number of plates together and within it filler particles of a lightweight metal or a light alloy are embedded. These particles are of aluminium or of aluminium alloy. The relative volumes are between 10-70% of filler particles and 90-30% of lead or lead alloy. The frame may be manufactured by sintering particles of lightweight metal or alloy, coated with lead or lead alloy or by sintering a mixture of particles of the component metals. Weight reduction so achieved is not at the expense of performance.
Patent DE-2027523-A1 (DE)
Title: Yarn cladding by two bobbins on common spindle - in a two-for-one - twister
IPC: D02G3/36
Filed: 1970-05-29
Abstract: The bobbins for the core yarn and the cladding yarn are mounted on a common spindle, with their respective yarn brakes mounted above each other on the same axis. The core yarn is drawn up through its yarn brake, while the cladding yarn is drawn over the top of the bobbin, down through the yarn brake and into the hollow spindle to be allowed to baloon outside the two-for-one twister to give a consistent cladding effect. The ballooning relationship and the amplitude between the two yarns remain constant to give even results.
Patent DE-2038253-A1 (DE)
Title: Travelling polyurethane foam sprayer - with several nozzles travelling on one transverse rail
Inventor: RUDOLF DR-ING DEMPWOLF KARL
IPC: E01C23/03
Filed: 1970-07-31
Abstract: An appts. for spraying polyurethane foam in a layer on a sub-base, e.g. to form a frost-insulating layer between a sub-base and a road topping, comprises a transverse guide rail on which two or more spraying nozzles move; the control system ensures that, when one spraying nozzle has reached the end of its travel, the adjacent nozzle commenced its spraying travel away from the same point, while the first nozzle returns along its path, without spraying. By using several nozzles travelling on a single transverse guide rail, a large width of road can be continuously sprayed.
Patent DE-2054605-A1 (DE)
Title: Uniformly mixing three constituents - where two do not react esp in foamed polyurethane prodn
IPC: G05D11/00
Filed: 1970-11-06
Abstract: An apparatus for mixing three components in absolutely uniform proportions, esp. for the starting mixture of a foamed polyurethane, consists of 3 storage vessels for the components, mixing vessels in which 2 non-reacting components are premixed, and a feed line for the third component leading to a mixing head; the third component and the mixture of the first two are separately injected into this mixing head. Typically, the third component is diisocyanate, the other two are polyol and activator.
Patent DE-2058600-A1 (DE)
Title: Rotary piston storage head - for thermoplastic fusions for moulding tubular blanks for blow moulding
Inventor: WULSCHNER JOHANNES
IPC: B29C48/475
Filed: 1970-11-28
Abstract: An annular collection chamber is arranged between the outer housing of the head and the inner concentric mandrel and the axially displacing rotary piston positioned in it in which the discharge channels feed into the upper end of the chamber at the mandrel perimeter, also the internal dia meter of the piston is greater than the outer diameter of the mandrel all along the section containing the storage chamber to ensure free flow.
Patent DE-2121397-A1 (DE)
Title: Production of alkaline protease from bacillus licheni - formis
IPC: C12N9/56
Filed: 1971-04-30
Abstract: Alkaline protease (I), for use in prepn of foodstuffs, washing powders, textile industry and in leather production, is prepd. by the following method: Bacillus licheniformis is grown aerobically in a suitable medium for 40-72hr. at 30-35 degrees to pH 7.0. The product is isolated by the usual techniques viz. filtration, concn. salting-out, dialysis, decolourisation, ion exchange chromatography and gel filtration. (I) has max. activity (caseine, haemoglobin, or albumin substrate) at pH 10-10.5 in denatured at 50-60 degrees and doubles its activity in presence of Ca(OAc)2 (5.10-3m).
Patent DE-2152608-A1 (DE)
Title: Continuous benzotrichloride prodn - giving uniform prod of high purity
Inventor: BOECKMANN WALTER DR
IPC: C07C17/14
Filed: 1971-10-22
Abstract: Title cpd. is prod. by chlorination of toluene in a cascade process of several stages in which excess chlorine is only allowed to react, diluted with an inert gas, in the last stages of the process. Formation of nucleus-substd. by prods is lowered.
Patent DE-2202235-A1 (DE)
Title: Transfer mechanism for linear conveyance of workpieces - - between successive forging machines which can grasp inside the oper
Inventor: LUCKE CARL
IPC: B25J9/10
Filed: 1972-01-18
Abstract: Workpiece transfer mechanism operating between two linearly positioned forging machines e.g. between a preforming press and a drop-forging hammer, comprises a stand with a vertical drive shaft to which a swivel tong is connected. This incorporates a rocker arm and a hinged tong arm, also with an upright shaft. Swivelling of the tong arm is derived from the rocker arm by means of a chain drive consisting of a chain drive wheel on the arm shaft, a control chain wheel, mounted on the rocker arm, and a control lever connected with the latter on its shaft, which is in turn mounted in a stand connecting link guide.
Patent DE-2208136-A1 (DE)
Title: Foodstuff prodn - by simultaneous lactic-acid-fermentation of milk products and vegetable substances
IPC: A23B7/10
Filed: 1972-02-22
Abstract: Simultaneous fermentation of milk prods. (e.g. skimmed milk or whey) and vegetable substances (legume, fruit) leads to an increased fermentation degrees cpd. with separate fermentation of these materials; in particular the L (+) - lactic acid content is increased. Suitable bacteria producing mainly L (+) - lactic acid include Streptococcus lactis, Streptococcus thermophilius, Streptococcus casei and Thermobacterium bulgarism. Prods of high nutrient value, good taste and good storage stability are obtd.
Patent DE-2233026-A1 (DE)
Title: Winning of magnesium silicate contg material in several extn stages each yielding a by-prod for further use
Inventor: GIESICKE HANS-JOACHIM
IPC: C01B33/22
Filed: 1972-07-05
Abstract: The starting material in the form of a preconcentrate is chosen from the following ores, olivin and antigorite, or hornblende, in particular tremolite, crocidolite, amphibole and amosite, and is treated mechanically and/or by screening, flotation, by fluidisation bed method, chemically and/or by using electric field forces, and/or by a photoelectric extraction method. In each extraction stage addns. are made of inorganic and/or organic substances. The by-products are in fibrillated form and metals.
Patent DE-2237094-A1 (DE)
Title: Embossing - with engraved wheel with grooved rim to stamp still-soft cable insulation
Inventor: HOSE FRITZ
IPC: B29C37/00
Filed: 1972-07-25
Abstract: The insulated cable, with its elastomeric or plastomeric insulation, emerges from the extruder or other injection moulding process to pass into the grooved rim of the freely-rotating embossing wheel, with its interrupted embossing cavities. The purpose is to allow the insulation to be stamped with identification while the material is still soft allowing cable speeds of over 200 m/min without distorting the symbols.
Patent DE-2237550-A1 (DE)
Title: Liquid epoxy resin prepn - from diglycidyl ethers of diphenols and drying oils, catalysed by metal chelates
Inventor: EDELMAN LEONARD E
IPC: C08G59/70
Filed: 1972-07-31
Abstract: Hardenable liquid mofidied epoxy resins, useful as embedding and casting compsns. e.g. for prodn. of coatings, are prepd. by reacting 20-80 wt.% of a diglycidyl ether of a diphenol of formula O-CH2-CH-CH2-(R'-CH2-CHOH-CH2)nR'-CH2-CH-CH2-O (I) (where R' is a diphenol gp. and n 1 on av) with 20-80 wt.% of >=1 drying oil, in the presence of 0.1-1.5 wt.% (w.r.t. wt. of (I) and drying oil) of >=1 catalyst having the formula (where M is Ti, Al or Si; R1 is an ethylene-, propylene- or isopropyl gp. R are 1-6C aliphatic or cycloaliphatic gps. or where R2 is H or 1-4C alkyl) up to clear-point stage, esp. by heating to 200-250 degrees C for >0.5 hrs. under inert gas.
Patent DE-2250311-A1 (DE)
Title: Inhibited projectile propellant - contg cellulosic binder and coated with polyisocyanate/polyol reaction product
Inventor: FLANAGAN JOSEPH EDWARD
IPC: C06D5/00
Filed: 1972-10-13
Abstract: Inhibited solid propellant for projectiles contains a cellulosic binder and has an inhibiting coating consisting of the reaction pdt. of a polyfunctional isocyanate and a polyol. Specif., the isocyanate is polymethylene-polyphenyl polyisocyanate and the polyol is polyethylene or polypropylene glycol. The inhibiting coating has a thickness of 1-150 mu. The binder is nirocellulose. High projectile speeds are obtained at moderately low chamber pressures.
Patent DE-2258375-A1 (DE)
Title: Medical syringe with plastics finger grips - fitted on polypropylene sleeve over end of glass tube
Inventor: TISCHLINGER EDWARD ANDREW
IPC: A61M3/00
Filed: 1972-11-24
Abstract: Glass tube with finger grip from plastic material, esp. for packing and dispensing chemicals, including sleeve from polypropylene tightly fitted over the end of the glass tube. One end of the sleeve is provided with two outwardly projecting opposite, flanges for holding and handling the tube and the other end of the sleeve has its leading ring shaped surface chamfered toward the sleeve bore to facilitate easy insertion of the glass tube. The leading end of the tube is either chamfered at an angle to its axis or the chamber forms part of the widened and rounded end of the tube. The sleeve has, inside its bore, projecting ring shaped shoulder positioned opposite the outwards projecting flanges against which the end of the inserted glass tube is located.
Patent DE-2309771-A1 (DE)
Title: Bioassay of fertility and contraceptive drugs - using mice
Inventor: MINTZ BEATRICE
IPC: A61K49/00
Filed: 1973-02-27
Abstract: Method comprises mating female and male test mice which are heterozygous +/t12, introducing a test drug into the females within a time which begins before mating and ends within a few days after mating, flushing out the contents of the oviducts and of the uterine horns separately, examining all embryos to see whether they have been transported into the uterus precociously, examining any pre-morula stage embryos and t12/t12 homozygous lethal morulae to determine whether the zona pellucida has been lysed and whether the cells have been dissociated, and counting and examining the normal blastocysts (+/+ and +/t12 genotypes) to see whether attachment to the uterine wall has been initiated.
Patent DE-2314778-A1 (DE)
Title: Plastic coated wallpapers which are permeable - due to perforation by arcs or residual water droplets
Inventor: LANGER WALTER
IPC: B26F1/28
Filed: 1973-03-24
Abstract: Plastic coated wallpapers rendered permeable to water vapour by perforations induced by spark discharge or by incorporating water droplets suspended in the resin solution or paste used to coat the paper. Arc perforation should be effected at 3000-15000, pref. 4000-6000 arcs/m2. Water droplets are employed at a loading of 1-5, pref. 1.5-3% wt. on total liquid content. Makes papers which are effectively washable and greaseproof, yet can be hung using traditional water-based pastes and will allow freshly plastered walls to dry out through the paper.
Patent DE-2321796-A1 (DE)
Title: FETs with higher limiting frequencies - produced using highly-doped zone in semi-insulating gallium arsenide substrate
Inventor: BENEKING HEINZ PROF DR RER NAT
IPC: H01L29/812
Filed: 1973-04-30
Abstract: The substrate is insulating or semi-insulating GaAs, contg. a highly-doped n+-type zone with impurity concn. of 1018 atoms/cm3. An n-type epitaxial layer of GaAs is then deposited, 0.5-0.8 mu thick, with impurity concn. 1016atoms/cm3. Above this layer, and between the source and drain electrodes, a control electrode is mounted which sits over the highly-doped zone in the substrate; this electrode consists of a Schottky contact whereas the source and drain are barrier-layer free ohmic contacts. An insulating layer of SiO2 is provided round the three electrodes with a hole in the SiO2 and in the epitaxial layer so that a fourth electrode is connected to the highly-doped zone in the substrate. The high-frequency signal is then superposed on the D.C. voltage between the control electrode and the highly-doped zone. As a result of the variable cross-field, the current flow between source and drain is directed into a highly-doped zone, thus altering the resistance. The object is to lower the series resistance in the input circuit by a substantial amt., thereby increasing the limiting frequency.
Patent DE-2325196-A1 (DE)
Title: Standardisable protein-free extracts of haemolysed blood - by extraction with an aq. natural acid and heating
Inventor: BOETTGER WOLFGANG JULIUS EMIL
IPC: A61K35/14
Filed: 1973-05-18
Abstract: A standardisable protein-free extract, which promotes vesicular respiration and RES activity, is produced from haemolysed blood or corresp. treated marrow or parts of the organs of mammals by (a) adjusting the haemolysate to a weakly acidic pH by adding a soln. of an acid, present in the organism, or its salt; (b) heating the stirred mixt. on a water bath (pref. at 50-95 degrees C for 5-30 min.); (c) filtering and centrifuging to remove proteins and enzymes; and (d) evaporating to dryness in vacuo. The acid is pref. lactic, ascorbic or or acetic acid.
Patent DE-2332372-A1 (DE)
Title: Pressure cooker with removable elastic sealer ring - recessed ring gutter and expanding concave conical lid
Inventor: GROSSMANN HANSJUERGEN
IPC: A47J27/09
Filed: 1973-06-26
Abstract: The pressure vessel has a conical shape and supports the food trays above the floor without a spacing tray. The bottom of the cooker has radiating reinforcing ribs. The upper edge is shaped as an annular gutter to receive the elastic sealer ring which is of circular cross section with spaced finger tabs. The ring is pushed into the gutter using both hands at diametrically opposite points. The conical lid has a radiused flange which, under pressure, beds into the sealer ring with radial and axial force components. The concave lid expands slightly in diameter under pressure to adapt to various conditions. A central safety and pressure release valve is fitted. The design is claimed to be safe, robust and economical.
Patent DE-2339167-A1 (DE)
Title: Multiple rotary resistor assembly - has single and tendem resistors engaged selectively via cogs by axially sliding setting shaft
Inventor: HINDERMAYR MARTIN
IPC: H01C10/20
Filed: 1973-08-02
Abstract: The multiple rotary resistor assembly has a first rotary resistor varied by rotating a first shaft, and second and third rotary resistors varied by rotating a common second shaft. The two shafts are coaxial and the ends which face one another have gear wheels fixed to them. Each cog engages an intermediate gear wheel. The multiple resistor spring-loaded setting shaft is located in one side of the housing axially parallel to the other shafts, and has a single gear wheel which meshes selectively with either of the two intermediate gear wheels. Sliding the setting shaft axially engages either the single rotary resistor or the two tandem-coupled resistors. The gear wheels may have rounded teeth.
Patent DE-2344076-A1 (DE)
Title: Non-destructive ultrasonic tester of workpieces - has electrically conductive surface for quality control and thickness measurement
Inventor: SCHKARLET JURY MICHAILOWITSCH
IPC: B06B1/04
Filed: 1973-08-31
Abstract: The tester comprises a generator and a recorder. The generator passes pulses to an electromagnetic, acoustic transducer including one or more inductance coils. The workpiece is positioned in the effective zone of the coil. The recorder receives the signals from the transducer. An element with an electrically conductive surface, forming a closed circuit, is arranged between the inductance coil and the workpiece. One part of the surface is connected to the inductance coil, whilst the other is in the proximity of the surface of the workpiece. The element consists of mechanically solid material to protect the coil against mechanical damage.
Patent DE-2344265-A1 (DE)
Title: Concrete reactor pressure vessel cover - incorporating flexible seal band and screw jack restraints
Inventor: EICK HENNING
IPC: G21C13/073
Filed: 1973-09-01
Abstract: Demountable cover for concrete reactor pressure vessel in which the seal between the cover and vessel is effected by a semi-circular flexible band attached at one end to the cover and at the other to a flange held against the vessel face by hydraulic jacks. The cover is supported at its periphery by a circumferential inner lip integrally constructed with the vessel inner liner. Axial and radial internal forces are restrained by external screw jacks mounted between the cover and the profiled upper face of the vessel. Used for reinforced concrete reactor pressure vessels. Utilises existing constructional techniques and is quickly mounted or demounted.
Patent DE-2347541-A1 (DE)
Title: Plastic fitting for fresh air duct in car - with radial securing tongues clip into holes in duct and removed by twisting
Inventor: TRUBE HANS
IPC: B60H1/34
Filed: 1973-09-21
Abstract: The inside of the fresh air duct is provided with holes near the outlet. The covering grille, with or without distribution flaps, has a double walled construction with the outer wall stamped with ratchet claws held outwards on springy tages. The inner wall hides the ratchets and provides a smooth appearance. The grille is inserted so that the ratchets clip into place to secure the grille. To remove the grille it is twisted so that the sloping edges of the ratchets are pressed inwards by the shoulders of the holes until the ratchets disengage. This enables the plastic grille, and distribution duct to be removed without damaging it or the dashboard.
Patent DE-2350201-A1 (DE)
Title: Prealloyed nickel-free steel powder - for structural parts fabricated by die-forging
Inventor: IDEDA OSAKA
IPC: C22C33/02
Filed: 1973-10-05
Abstract: The prodn. of structural parts having improved mechanical strength and which can be carburized and heat treated, is described in the parent patent. The addition of Ni to the prealloyed steel powder is not necessary as the Ni content of 0.3% is provided by the Ni impurities introduced during prodn. The steel powder consists of =0.5 wt. % C, 0.8-5.0 pref. 1.0-5.0 wt. % Cu, 0.1-0.7 wt. % Mo, =0.6 wt. % Mn, balance being Fe and usual impurities.
Patent DE-2354527-A1 (DE)
Title: Diffusion coating steel - in molten lead using a rotating drum
Inventor: RAUSCH JOHN JACOB
IPC: C23C10/22
Filed: 1973-10-31
Abstract: The Pb bath contg. the coating element is sealed together with the workpieces in a vaned cylindrical barrel to give a minimum of free space, and the barrel is then rotated in an orientation between horizontal and 60 degrees therefrom until coating is complete. The process is espec. applied to chromising.
Patent DE-2356106-A1 (DE)
Title: Plastic carrier bags with closure flaps - and carrying handles fastened to two bag inner walls
Inventor: KRATZERT FRIEDRICH DIPL KFM DR
IPC: B31B70/00
Filed: 1973-11-09
Abstract: Plastic carrier bags with a closure flap welded to one of its side-walls, an upper front wall that can be pushed under the flap, and carrying handles fastened to the two bag inner walls are produced by (a) forming a sheet into semi-tubular shape, in which are lengthwise edge extends over the other lengthwise edge, (b) intermittently transporting the sheet, (c) making openings in the overlapping part of the wider sheet part, (d) welding carrying handles to the inner faces of the upper and lower sheets, (e) moving the sheet upper and lower parts away from each other, (f) pressing the handle on the long side through the openings, (g) inwardly folding the edge strips of the sheet lower part that is to be from the flap so that the fold edge is situated at about the height of the upper edge of the sheet upper side, (h) making openings or cuts in the sheet upper side, (i) bringing together the sheet upper and lower parts, and (j) sepg. the individual sheet upper and lower parts by cross welds and cuts. Process gives rapid fixing of carrying handles of thicker flexible sheet matl. without difficulties.
Patent DE-2356349-A1 (DE)
Title: Support ring for sealing piston rings - has interlocking ends to withstand tension and compression
Inventor: HOLMBERG BO WALDEMAR
IPC: F16J15/16
Filed: 1973-11-12
Abstract: The support ring is used in conjunction with 'O' rings and similar rings, to prevent these rings being pressed out of their groove. The support rings are mounted at either side of the sealing rings in the groove of e.g. a piston, to enable them to be assembled. As these rings are made from a harder material than the sealing rings, they are split. The ends have square or swallow tail shaped interlocking ends, so that they cannot move relative to one another when subjected to tension e.g. when the ring expands or to compression when the ring is assembled.