baber/WOPTO huggingface dataset:
Patent DE-2205063-A1 (DE)
Title: Therapeutic bandages prepn - from collagen dispersions by quick-freezing and vacuum - sublimation
Inventor: CIOCA GHEORGHE
IPC: A61L15/32
Filed: 1972-02-03
Abstract: Lyophilised collagen-based bandages with fine porosity, useful as temporary skin dressings, esp. in burns or accidents involving skin loss, partic. over large body areas, are obtd. by quick-freezing an ox leather collagen dispersion having a concn. of 0.66 - 2% at -65 to -70 degrees C for 2.5 - 3.2 hrs. and drying by vaccum sublimation under 10-3 to 10-5 Torr for 24 - 48 hrs., provide end temp. =35 degrees C. Bactericides and/or bacteriostatic materials, e.g. 1.5 - 2 g tetracyclin and/or 0.5 - 0.75 g. hydrocortisone, are pref. added to dispersion before freezing and sublimation.
Patent DE-2236555-A1 (DE)
Title: Polycyclic for dyes for hydrophobic fibres - prepd from aromatic dicarbox-ylic acids or anhydrides and aromatic diamines
Inventor: HEDERICH VOLKER DR
IPC: C09B57/12
Filed: 1972-07-26
Abstract: Sulphonic acid gp -free polycyclic dyes (I) (where A is arylene, pref. o-phenylene, o- or peri-naphthylene, and B-OAc is an acyloxy gp substd. arylene, pref. o-phenylene or peri-naphthylene; A and b may contain further nonionic substits and Ac denotes an alkane-, aryl-, heteryl-, alkoxy - or aryloxy-carbonyl, or alkane- or aryl-sulphonyl or alkyl- or dialkyaminosulphonyl gp) are useful for dyeing and/or printing synthetic esp hydrophobic fibres materials, in strong fast yellow, orange and scarlet shades. (I) are prepd by (i) reacting aromatic dicarboxylic acids or anhydride of formula: (HOOC)2 -B-OAc or CO-O-OC-B-OAc with aromatic diamines A(NH2) or (ii) acylating OH gp-contg. polycyclic cpds. of formula I; OAc is OH .
Patent DE-2236875-A1 (DE)
Title: Ring halogenated aromatic carboxylic anhydrides - by oxidizing aromatic halogen cpds with ortho aliphatic groups
Inventor: ENGELBACH HEINZ DR
IPC: C07C51/265
Filed: 1972-07-27
Abstract: Title cpds are made by oxidising aromatic cpds contg. >=2 neighbouring 1-4C aliphatic residues and >=1 halogen atom in the ring, in the gas phase at 250-550 degrees C in the presence of air and of catalysts contg. V. in oxidised form. Process is esp. useful for producing halophthalic anhydrides from 3- and 4-chloro-1,2-dimethylbenzene.
Patent DE-2241113-A1 (DE)
Title: Rotatable feed nozzle - for mixing/homogenizing systems has nozzle flow axis vertical to axis of rotation
Inventor: RICHTER PAUL
IPC: B01F33/40
Filed: 1972-08-22
Abstract: Solid, liquid or gaseous substances can be introduced into a moving material stream in a transport pipe or a tank through a nozzle for the purpose of mixing, homogenising and of chemical or physical reactions. The nozzle is mounted rotatably, in an enlarged section if necessary, and the nozzle has two aperatures at right angles to its axis of rotation. Extremely uniform distribution of substances introduced into moving material flow; rapid action; ideal for fluidized bed conditions.
Patent DE-2253429-A1 (DE)
Title: Recovering urea dissolved in cresol - by adding an organic solvent
Inventor: SUDA HIDEAKI
IPC: C07C273/16
Filed: 1972-10-31
Abstract: Method for recovering urea dissolved in cresol, which comprises adding an organic solvent selected from the gp consisting of an aliphatic amide, an ether, carbon disulphide and dimethylsulphoxide to urea-dissolving cresol which is obtd in the refining process of mixt. cresol by the employment of urea, or the mixt. consisting of urea dissolving cresol and an organic solvent. The preferred aliphatic amides are N,N-dimethyl formamide, N,N-methylacetoamide, hexamethylphosphoric triamide and pyrrolidone and the preferred ethers are methylether, ethylether, propylether, isopropylether, dioxane and tetrahydrofuran.
Patent DE-2255944-A1 (DE)
Title: Clothes drying drum belt support - with tension roller axis pin held by looped spring mounting
Inventor: RETZLAFF WERNER
IPC: F16H7/14
Filed: 1972-11-15
Abstract: The axis pin for the tension roller of the drive belt is held in both ends of a spring which is looped round a holder, attached to the housing by an angle plate. This provides tension for the reversible belt drive which applies a constant pressure, and which will not allow the belt to jump clear on changes of direction.
Patent DE-2310388-A1 (DE)
Title: Contact heating device - for heating plastics tubes and profiles to elastic-deformation temperature
Inventor: MATUSZEWSKI KARL-HEINZ
IPC: B29B13/02
Filed: 1973-03-02
Abstract: In a contact heating device which is in design similar to a press, plastics-coated holding jaws are provided which snugly fit the tube or profile to be heated. The plastics coating is applied only at the surfaces coming into contact with the tubes or profiles, and an electric heating device is embedded in the holding jaws in close vicinity to the contact surfaces. The claimed device affords direct contact of the plastics article with the heating surfaces without risk of caking or thermal degradation.
Patent DE-2310420-A1 (DE)
Title: Dyeing keratin fibres, esp. human hair - gold-red-violet-brown shades with new reactive sulphur-contg. dyes
Inventor: LEON NICHOLAS HAY
IPC: C09B62/78
Filed: 1973-03-02
Abstract: The reactive dyes are of formula (I): X-CS-SR (I) (where X is a chromophore gp; R is -R'.COOH, -R'.COOCH3, -CH2CH2OH or -CH3, R' being 1,2 or 3C alkylene), more intense dyeings being obtained when the fibres are treated before or simultaneously with the application of (I), with a reducing agent reducing the S-S-bridges in the Keratin of the fibres to -SH- gps. Pref. dyes are of formula (II): (where R and R' are as defined; R2 is the residue of a coupling component; Y is opt. substd. phenylene; n is 1 or 2) prepared by reacting a diazonium salt of formula (II): Z- N+=N-Y-CS-SR with a diazo coupling component.
Patent DE-2320129-A1 (DE)
Title: Pipe fusion appts - having pipe clamps relatively movable by hydraulic rams
Inventor: MCELROY ARTHUR HAMILTON
IPC: B29C65/20
Filed: 1973-04-19
Abstract: Apparatus for fusing molten pipe ends has a fixed clamp on a support frame to retain a first molten pipe end, a movable clamp for supporting a second molten pipe end and mounted on guide rods which lie in a plane contg. the axes of the two pipe ends, and a hydraulic ram associated with each guide rod for moving the second pipe end into contact with the first. Pref. two movable clamps are provided and are connected by cylinders surrounding the guide rods which act as pistons.
Patent DE-2322759-A1 (DE)
Title: Clay based extruded building components - using tar addns, avoids conventional addn and removal of excess water
Inventor: ORTMAIER PETER
IPC: C04B33/13
Filed: 1973-05-05
Abstract: The process, typically used for brick or tile mfr. uses clay based raw materials to which water is added to form a plastic mass together specifically with is not >25 wt. % of tar, pref. hard coal tar. The tar may be added either as small pieces or as a liquid, the constituents pref. being heated to approx. 80 degrees C. More espec. 5% of tar is added, reducing the water requirements from 22 wt. % to 17 wt. %.
Patent DE-2335982-A1 (DE)
Title: Plastic container seal-snap off cap - is inverted and used as stopper
Inventor: YUECEL NIYAZI
IPC: B65D47/14
Filed: 1973-07-14
Abstract: The plastic cap which is screwed onto the neck of the container is preformed with a ring indent that is the female replica of projecting ring on the lower half. Between them the wall thickness is such that the top cap is readily sheared off. To re-seal the container, the cap is inverted and is pressed onto the open tip until the ring locates over the projecting ring. The ball shaped projection is then held firly against the open tip to provide an efficient seal. In the open state the cap is retained by a thin connecting loop.
Patent DE-2345619-A1 (DE)
Title: Building components with sealed in foam core - made with setting of core delayed after foaming to permit gas escape
Inventor: GOSSENS HUBERT
IPC: C08J9/34
Filed: 1973-09-10
Abstract: A method of making structural elements, e.g. panels, consisting of facing layers which are fully enclosed except for the adhesive overlaps and of a lightweight core, is as follows: the core matl. is first foamed, then hardened in two separate phases, thus allowing an interval of time before the overlaps are sealed. This time interval may be produced either by delaying the hardening stage, by accelerating the foaming period, or by a combination of both. Method is used esp. for external wall panels, where it is important to prevent ingress of moisture. Also for window and door frames. The method enables the gases generated during the foaming to escape before the expanded core of matl. has set, after which the edges can be sealed, thus enabling the panel to become fully enclosed.
Patent DE-2352284-A1 (DE)
Title: Antiseizing system for road haulage vehicle brakes - has hydraulic bypass valve which remains closed until pressures reduced on both sides
Inventor: LEIBER HEINZ
IPC: B60T8/50
Filed: 1973-10-18
Abstract: The anti seizing system for motor vehicle brakes has a bypass valve for the blocking valve in the hydraulic system. This is normally opened and when the antiseizing system is actuated then the bypass valve is closed. The bypass is hydraulically actuated with its chamber connected to the return flow line. When the actuating piston is moved this position is connected with the closing elements of the bypass valve so that the bypass valve is closed and the restoring force of the bypass valve is such that the bypass valve remains closed until the pressures on both sides of the valve become less than a specified pressure difference.
Patent DE-2354644-A1 (DE)
Title: Sulphur dioxide recovery - from gas mixtures using trialkyl phosphate absorbent
Inventor: FRYE ELROY E
IPC: B01D53/50
Filed: 1973-10-31
Abstract: The gas mixt. is passed countercurrent to a soln. stream of water soluble trialkyl phosphate, pref. triethyl phosphate contg. >=5% water and opt. a minor amt. of inorg. phosphate. The SO2-laden, soln. is regenerated using steam to boil the liquid and the SO2 reduced to S. Process is used for treating effluent gases from Claus-units, combustion of fossil fuels, and oil refinery catalytic cracking regenerators.
Patent DE-2356737-A1 (DE)
Title: Application thickness regulation of paper coating - by doctor blade vibrated perpendicularly to its plane
Inventor: SCHIKORRA GERD
IPC: B05C11/10
Filed: 1973-11-14
Abstract: Application thickness of a coating on paper is regulated with a smoothing doctor blade with its pressure controlled by pressure medium, and with vibrations imparted to it perpendicularly to its plane. Pref. the frequency and/or amplitude of the vibrations is regulated in dependence on the speed of the length. The apparatus has vibration generator(s) between the clamped and the free edge of the blade, on the side remote from the length to be coated, or on the mounting which claims the blade. Stripe free smooth coating is obtd.
Patent DE-2359913-A1 (DE)
Title: Mobile concrete road surface stripper - with beater chisels in transverse row on height-adjustable mounting
Inventor: WIRTGEN REINHARD
IPC: E01C23/12
Filed: 1973-12-01
Abstract: For removal of road surfaces damaged by spiked tyres, frost or other vehicle and weather effects, the machine comprises a self-propelled chassis with a demolition assembly mounted on it. The latter is in the form of a series of beater chisels set close together on a line running across the direction of travel, with a holder mechanism that can be adjusted for height relative to the level of the road. The vehicle frame may also be height-adjustably connected to at least one end pair of wheels, with one of two hydraulic cylinders provided for this. There may be a hydraulically height-adjustable support wheel on each side in the chisels' operating area. Eccentrics may activate the chisels. Hard concrete top surfaces can be removed without damaging the substructure, using a simple and inexpensive machine.
Patent DE-2360838-A1 (DE)
Title: Sporting gun cartridge - with explosive projectile
Inventor: CHAVEE RENE
IPC: F42B7/04
Filed: 1973-12-06
Abstract: Cartridge for use in shotguns when using the gun as an antipersonnel weapon has a moulded body with a rear obturating and stabilizing skirt, a central buster charge surrounded by a mass of round shot and a front impact fuse using a shuttered percussion cap and striker pin. The effectiveness of the cartridge is independent of distance.
Patent DE-2362856-A1 (DE)
Title: Stretch matting mfr process
Inventor: STAPP HANS
IPC: D04H3/03
Filed: 1973-12-18
Abstract: The process to develop a stretch matting matl., from extruded amorphic filaments which coil when immersed in a water bath, the extruder being located 4-20 cm. above the water surface, has angled surfaces passing through the water surface at an angle of 10-80 degrees between themselves and the filaments, the filament interval and filament row interval being 4-8 mm. The process gives a stretch matting matl. with smooth surfaces on either side.
Patent DE-2363729-A1 (DE)
Title: Triforine fungicides - in purified active forms by synthesis or fractionation
Inventor: OST WALTER DR
IPC: C07D295/12
Filed: 1973-12-21
Abstract: Conventionally produced triforine (I) consists of 3 optical forms, differing in fungicidal activity viz(-)(-)>> mes >(I) (-), in the ratio 25:50:25. The racemate ((-)(-), (+)(-)) is generally more sol. than the meso and is pref. extd. e.g. with 10% H2O in Me2Co or with DMF, giving (I) with >60, pref. 70-95% racemate. Alternatively the (-)(-) form may be synthesised by: (a) condensing piperazine with (+)(-)- CCl3CHClNHCHO (II), (b) resolving e.g. via. the l(+)-tartrate, (c) basifying (NaOH) to isolate the (-)-inter. (d) condensing with another mole of (II) (e) fractionation by solvent extn. as above, to give the pure (-)(-) and (+)(-) forms. Meso form, obtd. by either route, may be isomerised by heating at 40-110 degrees C in a solvent e.g. DMF and recycling.
Patent DE-2364738-A1 (DE)
Title: Gas liquid contacting method - combining high intensity with low hydraulic resistance
Inventor: KOLEV NIKOLAJ NIKOLAEV DIPL CH
IPC: B01J19/32
Filed: 1973-12-27
Abstract: Efficient transfer between a liquid and gas, e.g. in an absorption apparatus, is achieved by causing the liquid to flow through horizontal plates arranged above one another at a set distance. Specif. the plates have a checkered arrangement of slots produced by slitting and stretching of the plates, the slots forming an angle with the surface of the plate. The free cross-section for passage of the gas is >50%.
Patent DE-2402091-A1 (DE)
Title: Signal delay line for overload protection ccts. - has input switch as comparator feeding trigger via integrator
Inventor: VUKASOVIC IVICA DIPL ING
IPC: H02H3/093
Filed: 1974-01-17
Abstract: The signal delay line, for overload protection circuits, has an integrator coupled by its inputs or two transistors and to the input signal line, and by its output to a trigger with adjustable threshold. The current requiring monitoring is coupled over the transformer to a rectifier whose output is passed to a second trigger. This triggers output forms the input to the timing circuit which contains the integrator and first trigger. The two transistors in the timing circuit form a two stage input switch. The first transistor is off when the monitored current is less than a reference, and conducts when it is greater.
Patent DE-2414883-A1 (DE)
Title: Starter and operating cct. for D.C. operated fluorescent lamp - has feed voltage source and HV igniting source coupled to AC mains
IPC: H05B41/04
Filed: 1974-03-27
Abstract: The D.C. operated fluorescent lamp has a starting and operating circuit fed from A.C. mains. A supply circuit delivers operating voltage and current, and at least one ignition circuit delivers high, low power ignition voltage. The supply circuit and the ignition circuit are combined into one voltage multiplying circuit consisting of several cascade connected voltage doubling stages containing rectifier diodes and capacitors. A change-over switch is provided between the voltage multiplying circuit and the lamp, which automatically and periodically reverses the direct voltage applied to the lamp. Preferably the change-over switch contains a temperature responsive bimetal switching element.
Patent DE-2418430-A1 (DE)
Title: Transportable washer for ready-mixed concrete - with water tank allowing regeneration of used water
Inventor: MOLL WERNER
IPC: B03B9/06
Filed: 1974-04-17
Abstract: Washer for ready mixed concrete comprises a centrifuge for separating cement sludge and water and discharging them separately, the water being returned to a water tank which is integral with the cleaning plant. The mixing through comprises a perforated plate through which the washing water flows into a collecting channel, from which it is supplied to a pump which conveys it via a pipe to the centrifuge. The apparatus may be used to clean concrete transport vehicles. Preferably an excess pressure valve is built into the system to avoid excess pressure being developed in the line back to the water container.
Patent DE-2419778-A1 (DE)
Title: Regenerative heat exchanger for high temperature gases - contains spherical heat carriers in ceramic or steel formed elements
Inventor: RAJAKOVICS GUNDOLF DIPL ING DR
IPC: F28D19/02
Filed: 1974-04-24
Abstract: The heat exchanger is esp. fo gases at a temp. of 600 deg. C or more. it contains ceramic spherical heat carriers, with a dia. of 1-10 mm., pref. 3-5 mm. The heat carriers are positioned in or between ceramic or steel formed members, for the gas conduct. The formed members are of a v- or U-shaped cross-section, and are positioned above ach other. The lower part of each member is immersed into the store of spherical elements. The V-shaped members may be perforated at the bottom part.
Patent DE-2426642-A1 (DE)
Title: Sudden dimension alteration detector - has measuring device supplying parallel short- and long-term data stores
Inventor: STOCK KLAUS
IPC: B65H7/06
Filed: 1974-06-01
Abstract: The system is particularly for use in the paper industry, where alterations in thickness of sheet material indicate the lack of, or duplication of, a sheet, having a measuring device supplying an evaluator unit. The device (4) is followed by two parallel analogue data stores or integrators (7, 8). The first of these (7) is a short-term store with a time constant (T1) matching the set control time of the system. The second is a long-term one with an appreciably greater time constant (T2), and the outputs of both are connected to the inputs (I1, I2) of a comparator (9), producing a signal representing the discrepancy between them. The measuring device can be in the form of a Beta radiation detector working with a radiation source on the other side of the measuring zone, the sheet material (3) being radiation-absorbent.
Patent DE-2428129-A1 (DE)
Title: Extraction of copper from copper anode sludge - by treating with a sulphuric acid soln. contg. ferric ions
Inventor: IMAMURA TATSUO
IPC: C25C1/12
Filed: 1974-06-11
Abstract: Copper anode sludge, which contains the valuable metals Au, Ag, Se and Te, apart from Cu, is leached for 0.5-8 hr. with a sulphuric acid soln. contg. Fe (III) ions in an amt. >=0.3 equiv. referred to the Cu in the sludge. The leached solid substance is sepd. by filtration and the Cu contg. soln. is treated electrolycally for the sepn. of Cu whereby at the same time the ferrous ions in the soln. are converted into ferric ions used for recycling to the sulphuric acid leaching soln.
Patent DE-2430824-A1 (DE)
Title: Knitting machine tilting sinker - has a side support projection made in a single-stage stamping to give precise location
Inventor: APPRICH HARRY
IPC: D04B15/06
Filed: 1974-06-27
Abstract: Appts. for the control of needles in a knitting machine, comprises a tilting sinker mounted with the needle in the guide paths of the needle cylinder or needle bed, and a side supporting member for the tilting sinker. The design allows the tilting sinker to be located precisely in the centre line between two needles, and to give a single-stage mfg. process for the sinker.
Patent DE-2433785-A1 (DE)
Title: Zero re-setting of counters in registers with number barrels - using toggle joint cam mechanism
Inventor: PFEIFER KURT
IPC: G06M1/30
Filed: 1974-07-13
Abstract: The mechanism for restoring the counters of a register to zero has a return slide which is pressed in, so as to move a transmission lever around the number barrel shaft. The transmission lever cam therby carries a ratched drive and bridge out of contact from the number barrel cog. An engaging dog on the lever is also brought by a cam past a toggle joint, one pivoting section of which is based on the number barrel shaft and the other on the restoring bridge. The latter is moved against the number barrels, which are reset by a claw. The latter springs back slightly and is restored by a re-setting cam.
Patent DE-2436047-A1 (DE)
Title: Simplified program control for welding processes - using rotating, slotted disc and photoconductive cells
Inventor: MAREK ADOLF ING
IPC: G05B19/12
Filed: 1974-07-26
Abstract: The device consists of a carrier on which interchangeable master programme discs or plates can be mounted and moved w.r.t. a scanning unit so that signals are obtd. which result in pulses being generated, thus altering the welding parameters; after striking the arc the control unit is set in motion and adjusts the individual parameters in accordance with the pre-determined programme. The method avoids the complex and expensive modern techniques such as numerical control and permits rapid and simple programme change when the welding work is changed.
Patent DE-2436476-A1 (DE)
Title: Hydroconversion of coal-derived oils - using molybdate catalyst with narrow particle size range
Inventor: WOLK RONALD HOWARD
IPC: B01J35/10
Filed: 1974-07-29
Abstract: The process is used for treating a coal-derived oil contg. >50 (pref. 70-90)% boiling >975 degrees F and >=0.4 (esp. 1.5-2.5) wt.% ash by converting >60 (pref. 80-95)% of the high-boiling fraction to a fraction boiling at 975 degrees F. A liq. upflow ebullated bed reactor is used with a microspheroidal catalyst of Co and/or Ni molybdate on an alumina support. The particle size range is 40-325 mesh >=75 (pref. >=85)% being within the range 50-200 mesh and >=50(pref. >=70)% being within the range 50-140 mesh. The total pore vol. is 0.3-0.7 (pref. 0.4-0.55) cm3/g of which 0.2-0.4 (pref. 0.25-0.35) cm3/g is in pores of dia. >250 A degrees.
Patent DE-2436797-A1 (DE)
Title: Spray grid device for underwater massaging assembly - has two types of tubes with spray nozzles and compressed air source divider with cut-offs
IPC: A61H33/02
Filed: 1974-07-31
Abstract: A spouted grid unit for an underwater massaging device has air supply pipes with air outlet openings arranged longitudinally at a distance from each other. These are connected to a pressurised air divider (30) with a cut off device and is constructed such that the grid has a first group of air input channels (20) with large massaging air output openings (21) and a second group of air input channels (20) with small bubble type air outlets (22). The group of input channels (20) having the large air output managing openings (21) can be shut off or disconnected. Cut off devices (33) at least one for each air input pipe (20) with massaging openings (21) are situated in the air divider (30).