baber/WOPTO huggingface dataset:
Patent DE-1960157-A1 (DE)
Title: Alpha nitro acid amides or lactams, pharm - inters
Inventor: JENSEN HARALD DR
IPC: C07D205/095
Filed: 1969-12-01
Abstract: Alpha-Nitro-acid amides (I) or lactams (II) not accessible by known methods, are used as pharmaceutical intermediates. (In (I) (1): R1=H or hydrocarbon (is not >10C); R2 and R3 = alkyl or alkenyl (is not >10C); R2 may form a ring with R1 or R3. or (2) R1=H or lower alkyl); R2 and R3 = lower alkyl or jointly = alkylene (is not >4C). opt. substd. by Ph, Oalk, Oaryl or mercapto; R2 and R3 jointly with the N-atom can form an iso- or heterocyclic ring; and in (II) R'=H, lower(alkyl, Oalk, Salk), Ph, PhO or PhS; R" = H or CH3; R"' = lower alkyl). Preparation is by reacting R1CH2CO-NR2R3 in liquid NH3 with Na- or KNH2, then with a lower nitric acid alkyl ester and finally with NH4Cl between-80 and +30 degrees. In an example 31g trans-3-nitro-1,4-dimethylazetidinone-2, m.p. 82 degrees are obtained from 99g 1,4-dimethlazetidinone-2 and 70g isopropyl nitrate.
Patent DE-2003598-A1 (DE)
Title: Beta-aminoaryl ketones prepn
Inventor: KLOSA JOSEF DIPL-CHEM DR RER N
Filed: 1970-01-28
Abstract: Beta-Aminoaryl ketones of formula (I): (where R and R1 are H, halogen, alkyl, OH or alkoxy) are prepd. in good yield, by reacting Beta-dialkylaminopropiophenones (I): (where R2 is alkyl) with norephedrine in aqs. and/or aqs. alcoholic mixtures at room or raised temp. Pref. acid salts, such as HCl salts, are used for reaction, if necessary, in presence of alkali bicarbonates, such as NaHCO3, in aqs. and/or aqs. alcoholic media.
Patent DE-2012798-A1 (DE)
Title: Carpets with foamed polyurethane backing
IPC: D04H11/00
Filed: 1970-03-18
Abstract: Thermally insulating and noise suppressing carpets are mfd. by producing continuously a layer of foamed polyurethane on a jute or synthetic foil substrate, passing the so formed base layer through a calibrating nozzle, inverting the base layer so that the substrate is facing upwardly, coating the substrate with an adhesive and depositing electrostatically a pile on the substrate using selected staple fibres.
Patent DE-2015884-A1 (DE)
Title: Dispersion dyeing synthetic linear polyester
IPC: C09B1/58
Filed: 1970-04-03
Abstract: Polyester textiles are dyed by adding independently of the bath ratio 20-60% water (wrt. the textile) and using dyes of formula: (where R is -OH, or - S , R1 is H, - O-(CH2)n-OCONH or -O-(CH2)n OH and n is 1-6).
Patent DE-2017103-A1 (DE)
Title: Yarn for mfre backing materials
IPC: D02G3/02
Filed: 1970-04-10
Abstract: A stand of stiff synthetic fibres (pref. horse-hair) is enveloped by a spiral of binding yarn (e.g. of polyamide or polyester) which is pref. fused to the strand, and coated over parts, or all of its length by pref. a latex. The yarn is strong and economic to produce.
Patent DE-2032944-A1 (DE)
Title: Upward flow filter bed - with inlet nozzles in bed adjustable from below
IPC: B01D24/38
Filed: 1970-07-03
Abstract: An adjustable inlet nozzle for an upward flow filter bed, where a number of such nozzles are used for the incoming liquid, comprises an internally threaded sleeve, passing through the bottom plate below the filter bed, and an externally threaded inlet pipe inside this sleeve. Relative rotation between pipe and sleeve adjusts the level of the upper end (outlet end) of the pipe, the watertight seal between the outside of the pipe and inside of the sleeve being formed, e.g. by an O-ring, and the sleeve itself also being sealed to the bottom plate. Specifically, a n nozzle cap may be screwed onto an additional external thread on the outside of the sleeve, so that once the unit has been assembled, the inlet pipe can be rotated to vary the position of its upper, outlet end within the nozzle unit.
Patent DE-2033974-A1 (DE)
Title: Grafting of triethylmethacryloxystannane onto polymeric - substances - using ionising radiation
IPC: B27K3/15
Filed: 1970-07-08
Abstract: A process of radiation chemically grafting an acrylic monomer onto polymeric materials e.g. polyolefines, polyamides, polyethylene terephthalate, PVC or wood is effected by immersing the materials (or articles) into a solution of triethylmethacyloxystannane (I) and subjecting the materials to ionising radiation so that the modified materials contain >=0.5% w.r.t. starting weight of the material of (I). The claimed treatment imparts fungal resistance on fungal attack without impairing the props. of the materials.
Patent DE-2038227-A1 (DE)
Title: Treating ores and concentrates containing - non-ferrous and rare metals
Inventor: P SYTSCHEW ANATOLIJ
IPC: C22B13/02
Filed: 1970-07-31
Abstract: Treatment of sulphurous ores and concentrates containing Pb 10-70%, Zn 7-40%, Cu 0-6% and at least S 14%, is by melting involving complete (or almost complete) desulphuration. The pulverulent fraction entrained by the fumes is constantly returned to the treatment charge.
Patent DE-2046433-A1 (DE)
Title: Composite pvc distribution panels
IPC: H02B1/048
Filed: 1970-09-21
Abstract: Panels are made from continuous extruded hollow sections provided along their lower longitudinal edges with interlocking grippers whichco-operate either with a separate locking rail whose flanges are received between respective grippers or with a locking bead formed along one of the longitudinal edges in lieu of a gripper.
Patent DE-2103142-A1 (DE)
Title: Crystalline catalyst for oxidizing alkylbenzenes - prepd from cobalt acetate, acetic acid and hydrogen bromide
IPC: C07C51/265
Filed: 1971-01-23
Abstract: Catalyst for oxidising alkylbenzenes to carboxylic acids (esp. p-xylene to terephthalic acid) with air or gaseous O2 is crystalline and contains Co, Br and acetic acid in 1:1:1 molar ratio. It is prepared by heating cobalt acetate tetrahydrate and HBr to boiling in the presence of glacial acetic acid, precipitating the catalyst by cooling to ca 20 degrees C and separating off from the mother liquor and opt. drying. The catalyst is markedly more active (esp. with respect to yield and purity of the end-product) than prior Co catalyst produced in situ from Co salts, acetic acid and HBr, since all deactivating impurities remain in the mother liquor during prodn.
Patent DE-2111000-A1 (DE)
Title: Textile knitted protective screens - with erection bars incorporated in the screens during manufacture
Inventor: ARNOLD ROLF
IPC: E01F7/02
Filed: 1971-03-08
Abstract: Textile knitted screens for protection of coasts against sand shifts, railways or roads against snow drifts and camps against wind gusts are provided with erection bars which may be coated with plastics materil having a high coefft. of friction and bars are knitted into the screen during prodn., so that on the left side they are interlocked by warp and weft of canvas and on right side held by shanks of looping stitches.
Patent DE-2117637-A1 (DE)
Title: Fly doubler - with paired winding bobbins for uncut yarn to run between bobbins
IPC: D01H1/04
Filed: 1971-04-10
Abstract: The bobbin mandrel is lengthened to take two bobbins so that when one is full, the bobbins are reversed for winding to continue, with the yarn passing over the bobbin flanges through a groove. This serves to double the length of uncut doubled yarn compared with fly doublers working with single bobbins.
Patent DE-2121819-A1 (DE)
Title: Continuous casting surface cleaning - by milling cutter in secondary roll sets
IPC: B22D11/12
Filed: 1971-05-03
Abstract: The sets of rolls for guiding a continuously cast metal section in the secondary cooling zone, which make contact with the workpiece on opposite sides, includes >=1 set of rolls on which is mounted a tool for cleaning the workpiece surface. The relevant roll(s) has (have) their own drive, and their distance from the workpiece surface is individually adjustable. The prefd. tools is a milling cutter with a number of offset blades and support spacers. The cutter provides in-process cleaning up of the workpiece surface.
Patent DE-2125153-A1 (DE)
Title: Cold box sand moulding catalyst - dispenser having piston - with adjustable travel
IPC: B22C9/14
Filed: 1971-05-21
Abstract: The dispenser comprises a dispensing piston with adjustable travel permitting alteration of quantity of catalyst. The travel of the piston is pref. controlled by means of an adjustable stop. The catalyst is pref. blown into the mould via a nebuliser, an ion-exchanger taking out any unused catalyst from the air emerging from the mould. The set up permits injection of correct quantities of catalyst minimizing health hazard arising from poisonous catalyst vapours entering atmos. The ion exchanger is a safeguard to make doubly sure of this not happening.
Patent DE-2131589-A1 (DE)
Title: Welding tubes in sockets - partic explosion welding of tubes in tube plates
Inventor: NAGUIB DIPL-ING BOUTARI ONSI
IPC: F28F9/02
Filed: 1971-06-25
Abstract: Tubes are explosion-welded into tube plates by an appts. incorporating a stop member positioned adjacent the plate recess, through which the electrical ignition circuit is fed and to which a pin is attached which protrudes into the hollow. The stop member rests on the edge of the recess of the holder-plate or of the hollow body, and the pin carries an insulating head which can be inserted into the hollow body and is located next to the interior wall of the hollow body. Between the head and the stop member there is a detonating sleeve with a primer ring, and the sleeve surrounds the pin. The appts. is inexpensive and dispenses with the need for filling in with a damming fluid.
Patent DE-2136479-A1 (DE)
Title: Concentrating coffee extracts - before freeze-drying by partial freezing and removing ice crystals
IPC: A23F5/30
Filed: 1971-07-21
Abstract: Coffee extracts contg. 15-30 wt.% of solids are concentrated to a 30-60wt.% solids content suitable for freeze drying, by partial freezing and removal of ice crystals. This process is improved by separating the ice crystals in a filter press cooled to -3 degrees to 0 degree C to prevent melting of the ice crystals.
Patent DE-2145931-A1 (DE)
Title: Foundry moulds and cores - allowing re-use of refractory materials
Inventor: MORGAN ALFRED DOUGLAS
IPC: B22C1/00
Filed: 1971-09-14
Abstract: Foundry mould or core compsn. comprises a refractory material and binder, >=20 vol.% and =80 vol.% of the particles of refractory material will not pass through a sieve with 1/8" (3 mm), dia holes, but the particles have a dia =1". Compsn. includes a surfactant and a liquid rendering it castable before it is solidified by the binder, >75% of the refractory material is recoverable and re-useable.
Patent DE-2149206-A1 (DE)
Title: Perishable goods handling plant - for storage or transport using continuous air extraction and optional refrigeration
Inventor: KIDSON CHRISTOFFEL
IPC: A23C3/00
Filed: 1971-10-01
Abstract: Ingress of damaging insects/microorganisms is prevented by the use of an air and moisture type container, cabinet, vehicle, etc. at ambient temp. or below, in which a partial vacuum is created and maintained by continuous air extraction either with built-in external vacuum pumps or using suction nozzles and detachable pumps. The resultant oxygen starvation prevents growth /activity of such vectors/agents. All perishable foods can be so handled/stored and in addition similar low pressure plant may be used in fruit/vegetable juice prodn. and in dairy product mfr., esp. cheese and milk powder.
Patent DE-2151269-A1 (DE)
Title: Cellulosic textile treatment to impart flame retardant - props without loss of strength or hand-softness
Inventor: STOCKEL RICHARD FREDERICK
IPC: D06M15/431
Filed: 1971-10-14
Abstract: Flame retardant compn. for cellulosic textiles comprises a phosphine of formula : P(CH2OR)3 (where R is H or lower alkyl), and methylolated nitrogenous cellulose reactant e.g. mealmine, and opt. urea. The melamine is methylolated in situ by adding HCHO to an aqs. soln. of the compn. and at least partially reacting. There is no loss of textile strength or hand softness of treated textile.
Patent DE-2159916-A1 (DE)
Title: Semiconductor crystal puller - using axial audio-frequency vibration of bar for uniform radial resistance characteristic
Inventor: MUEHLBAUER ALFRED DR
IPC: C30B13/28
Filed: 1971-12-02
Abstract: The transducer is either a cooled magneto-strictive or piezo-electric device and operates at above 20kHz esp. up to 10MHz the vibrations being transmitted to the clamp at one end of the vertical bar by a metal esp. Pb-Sn alloy coupling or an acoustic damper esp. PTFE compounded with epoxy resins. The amplitude is regulated to a constant value by measuring the amplitude of the audio frequency modulation of the induction heater current at the vibration frequency as detected from the fusion zone in the bar. An electro-dynamic vibrator coupled to the bar by a liquid column and operating in the audible frequency band esp. at approx. 50Hz may be used, the amplitude regulation signal in this case being from a pick-off coil, a piezo-electric pick-off or a steel wire extensometer.
Patent DE-2160144-A1 (DE)
Title: Laying-up fibre-reinforced plastics - by mechanised process using heater between pressure rollers
Inventor: PFLEGER ALBERT
IPC: B29C63/02
Filed: 1971-12-03
Abstract: A mechanised lay-up process utilises a device which consists of (1) a feed roller supplies a web of resin-impregnated material to (2) a first pressure roller which is mechanically driven at constant speed, and (3) a second pressure roller. Between the two pressure rollers lies a spring-loaded heating arrangement which presses down on to the web. The device moves on the surface of the form, depositing the web on its surface, after which the heating arrangement both smoothes and cures the web.
Patent DE-2166168-A1 (DE)
Title: Synthetic wollastonite - from slag from phosphorus prodn by soaking in water and calcining
Inventor: STRASSEN HEINRICH ZUR PROF DR
IPC: C04B14/04
Filed: 1971-04-07
Abstract: A synthetic wollastonite is prepd. from the slag formed in the thermal prodn of P from crude phospahtes by soaking the slag in water and calcining, possibly after removing impurities, at least 1000 degrees C (1150-1200 degrees C) in an oxidising atmos. Before calcination there may be added, based on weight of slag, substances contg. 1-15% Al2O3 and/or 2-30% SiO2 and/or 0.5-10% alkaline oxide. Pigments may also be added. Uses incude ceramic objects, e.g. wall tiles, as additives in prodn of construction material based on Ca silicates, for brightening or marking road-surfaces, as fillers for plastics, paper or paints or as decorative gravel.
Patent DE-2243214-A1 (DE)
Title: Forming or renewing grooves in grinding disc - using a crushing roll rotat-ing with peripheral speed equal to that of disc
Inventor: MEYER HANS-ROBERT DR ING
IPC: B24B53/07
Filed: 1972-09-01
Abstract: Grooves in the working surface of a grinding disc contg. at least in its peripheral parts diamond and/or boron nitride grains in a brittle binder matrix, are produced or renewed by means of a crushing roll made from a high-speed steel or a hard metal and provided with corresp. projections. The crushing roll is pressed against the working surface of the grinding disc whilst both rotate in opposite sense with equal peripheral speeds (only one of them is driven by a motor). The roll exerts a crushing action on the brittle material of the grinding disc so that it is gradually removed, whilst there is no frictional effect (there is no speed difference at the contact point) so that the material of the crushing roll is not much affected.
Patent DE-2258817-A1 (DE)
Title: Moisture expulsion from wet hides - by stacking in perforated tray acting as bottom die of hydraulic press
Inventor: PUTZ HELMUT
IPC: D06B15/00
Filed: 1972-12-01
Abstract: The moisture absorbed in hides during the wet treatment of furs is expelled by stacking them in a perforated tray with wheels. The tray is rolled under the top die of a press and serves as its bottom die. The bottom of the tray is lined with a material which can yield to the pressure of the top die, alternatively it is supported by a set of disc springs. The top of the stack is similarly protected.
Patent DE-2328414-A1 (DE)
Title: Protective layer prodn for metallurgical fittings - by simultaneously cooling in liquid nitrogen and dipping in liquid slag
Inventor: BLOCK F R DR RER NAT
IPC: C21B7/10
Filed: 1973-06-01
Abstract: Coating is produced on blast furnace blow moulds, cooling rings, LD-nozzles and the like, which are exposed to heat. The fitting is removed from the container of molten slag or other layer-forming matl. af ter a given time, depending on the required layer thickness. Pref. damage, down-time, and repairs are reduced.
Patent DE-2331414-A1 (DE)
Title: Glass bonding - by thermoplastic film by heat and pressure
Inventor: BARTFAI JOHN JOSEPH
IPC: G02F1/1339
Filed: 1973-06-20
Abstract: Designed to bond two layers of glass for use as liquid crystal display devices, the thermoplastic film to form the bonding seal is e.g., selected from polyester of dicarbonic acid with glycolene or phenolene, polycarbonate, polyurethane and acrylic bonds. The purpose is to give an even and consistent bonding, without uneven zones, which will not dissolve with the liquid crystal material.
Patent DE-2333379-A1 (DE)
Title: Printing pastes contg. reactive or vat dyes - for transfer printing cellulose-contg. textiles e.g. cotton, rayon
Inventor: WIRTH HANS
IPC: D06P1/613
Filed: 1973-06-30
Abstract: Aqs. printing paste for the transfer printing of cellulose contg. material, e.g. cotton, rayon, contains, calc. on the printing paste, (a) 1-30%, pref. 5-15%, of reactive or vat dyes, (b) 1-50%, pref. 10-30%, of a water-sol. polyethylene oxide of pref. m. wt. 3000-6000 and having structure, and opt. (c) an emulsion thickener, pref. composed of heavy gasoline (b.pt. 140-200 degrees C), water, on emulsifier of the oil-in-water type and opt. a thickener swelling in water. Sharp outlines are obtd. with no sublimation of the dyestuff, and a wide range of dyes may be used. The pastes contain little or no solvent and may be applied conventionally onto the dyestuff carrier strips in the usual way.
Patent DE-2336556-A1 (DE)
Title: Switching arrangement for direct voltage powered vehicle - has motor located in bridge diagonal of the semi-conductor valves
Inventor: CIESSOW GUENTER
IPC: B60L7/22
Filed: 1973-07-16
Abstract: The vehicle operates with a mixture of network and rheostatic braking. The bridge comprises switch elements and partly controllable semiconductor valves. The rheostatic braking is accomplished via a series arrangement connected to a diagonal point of the bridge and a braking resistance. A part of this resistance is used for an auxiliary heater whereby this part is connected on one side via a decoupling diode between the actual resistance and the additional controllable valve and on the other side to a pole (+) of the direct voltage network. A switch is located between the negative pole of the network and the resistance part and decoupling diode.
Patent DE-2343700-A1 (DE)
Title: Protecting metals against corrosion - by applying intermediate metal layer more electropositive than heat-sprayed outer metal layer
Inventor: LANGLET RAINER
IPC: C23C4/18
Filed: 1973-08-30
Abstract: Metals (I) are protected against attack by corrosive materials by coating surface of (I) with a first layer of a second metal (II) which is more electropositive than a metal (III) subsequently applied, by heat-spraying, as a protective layer. The process is used for protecting base metals, e.g. Fe, against sulphurous materials, e.g. industrial atmos. contg. traces of H2SO4. On attack by corrosive materials, (III) is corroded and "blooms", thus closing micropores formed in heat-spraying. The process allows use of (III) which are more electropositive than (I) without risk of corroding (I). (II) can be applied electrolytically or by heat-spraying and is pref. sealed, e.g. by waxes, water-glass, resins or lacquers, in order to prevent acid penetration to (I) until (III) has formed a closed structure.
Patent DE-2344165-A1 (DE)
Title: Rotating shaft with pneumatic engageable switch coupling - has oil pressure produced in enclosed part-filled system, with compressed air feed to ring space around shaft
Inventor: CHIVARI ILIE
IPC: F16L27/087
Filed: 1973-09-01
Abstract: Pneumatic engageable switch is for connecting a rotating shaft to a rotatable component, in which compressed air is fed to the coupling via a channel in the rotating shaft itself. The compressed air channel opens into the outer surface of the shaft, the shaft is enclosed in a stationary housing, which forms a ring shaped space in the region of the compressed air channel exit. Compressed air can be introduced into this ring space and on both sides of it, between the housing and the rotating shaft, air tight shaft seals are fitted which are in contact with oil pressure on the outside. The oil pressure is adjustable for the limitation of the pressure difference effective on the shaft seals dependent upon the pressure of the compressed air. The oil pressure is statically produced in an enclosed, partly oil-filled system which is connected above the oil level with a compressed air feed line to the ring space. The oil used is of high viscosity.
Patent DE-2346967-A1 (DE)
Title: Powdery or granular material flow measuring device - has oblique baffle plate in path of falling material
Inventor: SPRINGHART WULF
IPC: G01F1/30
Filed: 1973-09-18
Abstract: A dynamometer measures a component of the force applied to the baffle plate by the material falling mass. The baffle plate consists of several oblique plates so arranged at the same level, that their projections on a horizontal plane cover an uninterrupted area. These plates are firmly joined together and connected to a common dynamometer. They are parallel to each other, at the same or at different angles to the material fall. The angle(s) are adjustable. The plates are mounted rotatably on a support, and their angle is adjusted by a rod system. The latitude of error due to the differences in height of fall of the substance is lessened without narrowing the flow.
Patent DE-2349378-A1 (DE)
Title: Pre-fabricated treads for internal staircases - consists of chip board body with electro-statically applied fibre coating
Inventor: SCHULTE KURT
IPC: E04F11/16
Filed: 1973-10-02
Abstract: Each tread consists of a prefabricated element, fastened to the support construction of internal staircases. The basci tread body consists of chipboard, an upper and lower adhered board of moulded fibre, and a decorative surface for walking on. The tread surface and/or the lower surface of the basic body may be electrostatically coated with a synthetic fibre flock. The fibres are applied via a layer of permanently elastic and electrically conductive adhesive. The coating is applied to an elastomeric plank, adhered to the basic body. The visible sides of the tread are also coated.
Patent DE-2353912-A1 (DE)
Title: Wheel flange lubrication system for rail vehicles - incorporates centrifugal and mechanical switch to actuate a solenoid valve
Inventor: FRAHM PETER
IPC: B61K3/02
Filed: 1973-10-27
Abstract: The system contains a lubricant reservoir, a supply conduit to a nozzle at the lubricating point, and an air pressure conduit. The air conduit is connected to a pressurized air source; it opens into the nozzle, and it contains an electrically actuated solenoid valve. To transmit impulses to the valve the rail vehicle has a centrifugal switch and a parallel mechanical switch. The latter is actuated by a projecting member of the vehicle in bends of the track, or similar. The solenoid valve is controlled by an electronic control unit, which receives the impulses from one or bothe of the switches. The control is dependent upon the driving current, and contains a time-dependent impulse-transmitter.