baber/WOPTO huggingface dataset:
Patent DE-2135992-A1 (DE)
Title: Fluorine-contg wood preserving composn - contg a metal fluoride
IPC: B27K3/32
Filed: 1971-07-19
Abstract: The protective compsn. contng. fluorine and which is hardening and water-sol. contains metal fluorides MexFy where Me = Al, Zn, Mg or mixtures of these. The metal fluoride is prepd. by the reaction of a sol. Al, Zn or Mg salt with an alkali fluoride in the presence of an alkali or acid solubiliser e.g. NaOH, alkali silicates, NaHSO4 or free acids. An example is: Al(NO3)3, 9H2O 1 mol., NaF 9 mols, NaOH 6.5 mols. The mixtures have a pH 13 and when wood is steeped in the soln. its acid components of pH is approx. 4 react to produce a cryolite compd. Na3(AlF6).
Patent DE-2136303-A1 (DE)
Title: Ferric chloride soln - for hydrogen chloride prodn by oxidising residual liquor from steel pickling
Inventor: KOVACS GEZA LOUIS
IPC: C01G49/10
Filed: 1971-07-20
Abstract: Ferric chloride is prepd. in the form of an aqs. soln. by intimately mixing an aqs. soln. of ferrous chloride with free oxygen, either (a) at 80 degrees C and a superatmospheric pressure, or (b) at an elevated temp. in the presence of a promoter contg. ammonium, Cr, Co, Cu, Mn, Ni and/or Zn ions. The process is used to convert FeCl2 in the residual liquor from steel pickling with HCl soln. into FeCl3. The FeCl3 soln. can be thermally decomposed to give gaseous HCl which is recovered in the form of hydrochloric acid.
Patent DE-2141541-A1 (DE)
Title: Molten metal transfer - by means of a hot a-stream
IPC: B22D17/30
Filed: 1971-08-19
Abstract: Molten metal transfer method employs a hot inert gas which is piped into the melt transfer device consisting of a nozzle for the gas which pulls the metal along and discharges together with it at the outlet end. Pref. gas is Ar and is best heated by running it's supply tube along the metal transfer pipe which is heated by the melt and by an external heating device to 650 degrees C when casting Mg or it's alloys. The device is intended for use in connection with the transfer of Mg alloys in die casting plant.
Patent DE-2153528-A1 (DE)
Title: R forms of 4-(acylamidoalkyl) phenylsulphonyl ureas - and - sulphonamidopyrimidines - with antidiabetic activity
Inventor: BIERE HELMUT DR
IPC: C07D239/69
Filed: 1971-10-22
Abstract: The R forms of cpds. of formula (I): (where CC atom in the R configuration; R is Me or Et; A is isoxazolyl opt. substd. by Me or Et, or phenyl opt. substd. by halogen adn/or MeO or EtO; X is R1NHCO, where R1 is 5-7C cycloalkyl opt. substd. by Me or Et, or X is 5-R2-2-pyrimidinyl, where R2 is 1-6C alkyl) have an antidiabetic activity 30-300 times greater than that of the S forms and ca. twice that of the racemates. (I) may be prepd. (a) by reacting the corresp. sulphonamide with R1NCO, or (b) by reacting the corresp. sulphonyl halide with 2-amino-5-R2-pyrimidine.
Patent DE-2161651-A1 (DE)
Title: Melt alloying - by passing melt jet through plasma jet
Inventor: ERDMANN-JESNITZER FRIEDRICH PR
IPC: C22B9/22
Filed: 1971-12-11
Abstract: The melt is run from the bottom of a crucible through a nozzle dispersing itself into droplets, which pass through a plasma jet, where alloying agents are added or alloyed with the droplets, which continue their fall into a crucible. The method effects complete alloying and results in a homogeneous melt.
Patent DE-2166248-A1 (DE)
Title: Ptfe insulating material - for use with impulse repeaters to control thyristors and preventing interference currents
Inventor: KUBLICK CHRISTIAN DIPL ING
IPC: H01F19/08
Filed: 1971-03-04
Abstract: The thyristor, cathodes are forced into a abrupt variations in potential and in order to lower the capacity of the impulse repeater an insulating material is used with a low inductive capacity and high insulating tension. Pref. the insulating material is PTFE.
Patent DE-2200478-A1 (DE)
Title: Alkyd resin compsns - and radiation sensitive printing inks
Inventor: FRANCIS ACKERMAN JOSEPH
IPC: C08G18/67
Filed: 1972-01-05
Abstract: Compsn. comprises a liquid vehicle polymerisable on exposure to actinic radiation comprising a major proportion of a resin obtained by reacting (a) a polyester having OH equiv. et. of 100-2500 prepd. from (i) a dibasic acid and/or anhydride (ii) a diol, triol and/or tetrol and (iii) a monobasic acid and (b) a reaction product of a diisocyanate with an Oh-contg. (meth) acrylate or allyl moiety. Compsn pref. also contains an actinic radiation sensitizer. (i) is pref. adipic terephthalic, maleic, itaconic, etc. acids and anhydrides, (ii) is pref. (di)ethylene glycol, butane diols ethylene oxide, trimethylol ethane etc. (iii) is pref. a 4-22C monobasic carboxylic acid. (b) is pref. reaction prod. of toluene dissocyanate and the acrylic acid ester of ethylene glycol.
Patent DE-2200663-A1 (DE)
Title: Gravity conveyor street - for transferring hot forging billets
Inventor: MYLAEUS ARMIN
IPC: B21B39/00
Filed: 1972-01-07
Abstract: Appts. comprises lightly constructed closely spaced ball being supported rollers. The rollers are stub axles supported in U-section girders, two of which are welded together along one upper edge to form an included angle of 90 degrees between their outer sides, the roller axes of rotation being at 45 degrees relative to the horizontal rollers fitted to each girder including 90 degrees. The system is flexible and can be easily moved. Only very slight inclinations are necessary to permit operation of the conveyor.
Patent DE-2205977-A1 (DE)
Title: Aligning textile spindles
Inventor: MCCOMBS C
IPC: D01H7/08
Filed: 1972-02-09
Abstract: A device for aligning a textile spindle on a spindle rail comprises a member which is a press fit over an intermediate portion of the spindle closely adjacent the rail against which the spindle is secured by a nut the member projecting radially from the spindle and having a number of adjustable devices about its circumference to tilt the spindle axis relative to the spindle rail and align it in a desired portion. The device is simple to fit and eliminates the need for skimming.
Patent DE-2221384-A1 (DE)
Title: Medium and low vi lubricating oils - produced from paraffinic materials
Inventor: GOOSWILLIGEN GERRIT VAN
IPC: C10M101/02
Filed: 1972-05-02
Abstract: The oils, with V.I. 90, contain (A) an aromatic extract from a de-asphalted vacuum distillation residue of a paraffinic crude oil and (B) an opt. dewaxed vacuum distillate fraction of a paraffinic crude oil. (B) is pref. a wax-contg. light or medium heavy machine oil distillate or esp. a wax-contg. spindle oil distillate, which is pref. dewaxed before blending with (A). A pour pt. depressant, consisting of a copolymer of ethylene with a 3-5 C aliphatic monomer contg. C=C bonds, or a 16-22 C alkyl (meth)acrylate polymer, is pref. included. The oils are produced from the same paraffinic raw materials as high V.I. oils, and (A) is a low value by-product from mfr. of such oils. The viscosity and oxidn. props. of the oils are comparable with those of naphthenic medium and low V.I. oils.
Patent DE-2235888-A1 (DE)
Title: Improving sliding props of metals - by combined grinding and plating process
Inventor: SCHOECKLE SIEGFRIED DIPL ING
IPC: B24B1/00
Filed: 1972-07-21
Abstract: A soln. or melt of bearing metla salts is fed into the gap between a grinding tool and a metal surface and metal is deposited electrolessly or electrolytically onto the surface. Ultrasonic vibration and/or elevated temps. can be used to increase deposition rate, and non-metallic particles (oxides, carbides, borides, etc.) can be incorporated for co-deposition. Method is used in surface finishing pistons, cylinders, sliding bearings and the like.
Patent DE-2255624-A1 (DE)
Title: Sound and heat insulating compsn. - contg. mineral filler and bituminous binder
Inventor: SZABO EMILE
IPC: E04F15/10
Filed: 1972-11-14
Abstract: Title compsn. contains cork, sand, broken rock or expanded vermiculite and a binder comp. 70% bitumen and 30% hydrocarbon solvent. Also asbestos and CaCO3 can be present. The mixt. is applied cold and hardens in 3-5 days.
Patent DE-2302722-A1 (DE)
Title: Method for the surface hardening of steel - for structural components exposed to sliding friction
Inventor: BOETTNER ROLF
IPC: C23C8/80
Filed: 1973-01-19
Abstract: The method comprises (a) a nitriding treatment followed by (b) a flame or induction heat treatment. Pref. the steel is treated first in a fused salt bath contg. cyanate or cyanide at 570 degrees C and the thus treated surface is heated by using a flame, or by induction in known manner. The hardening treatment does not depend on the C content of the steel and gives a greater depth of the hardened zone than can be obtd. with either of the two methods alone.
Patent DE-2314242-A1 (DE)
Title: Dyestuffs and heterocycles inters - ie 3-substd 2-keto-4-hydroxy-1,2,3,4-tetra hydro quinazoline-4-carboxylic acid hydrazides
Inventor: PETERSEN SIEGFRIED PROF DR
IPC: C07D209/38
Filed: 1973-03-22
Abstract: Title cpds of formula (I): (where R1=opt. substd (cyclo)aliphatic, arylaliphatic, or aromatic gp; R2-5 are H or non-reactive gp. or together form a ring; and r5-8 are H, (aryl)aliphatic, or together form a ring) are formed by reaction at -10 to 150, pref. 0-50, esp. 20-40 degrees C of equimolecular amts of isatin-N-carboxylic acid amides (II) and hydrazines, R6NHNR7R8, pref. in a non-acidic solvent. Prods are inters for dyestuffs and heterocycle synthesis. When R7=R8=H, prods form derivs with ketones which are used in ketone isolation procedures.
Patent DE-2316465-A1 (DE)
Title: Pneumatic solids-conveying system - for eg dry, ready-mixed concrete for use in mining
Inventor: GEISLER ROLAND DIPL ING
IPC: B01D47/00
Filed: 1973-04-03
Abstract: In a conveyor system for dry concrete, etc., of the type comprising a pneumatic conveyor machine and pipeline and a cyclone upstream of a wet mixer, the exhaust air pipe from the cyclone is connected to an annular chamber-jet ejector-dust remover, the wet section of which is connected to the wet mixer.
Patent DE-2332887-A1 (DE)
Title: Arrangement for the rapid control of switching transistors - using an isolated base-emitter supply has inverters and isolating transformers
Inventor: BOEHRINGER ANDREAS PROF DR ING
IPC: H02M1/08
Filed: 1973-06-28
Abstract: The switching power transistor is used in the armature circuit of d.c. motors for speed control. A d.c. power source is fed to two inverters whose output is transmitted via isolating transformers. The inverters may be transistor oscillators, and are controlled by an external logic and control circuit. The transformer outputs are fed via diodes to the main transistor base-emitter circuit so that if the output is from the first inverter the main transistor is conducting, whilst if the second inverter is active the main transistor is blocking. The logic circuit and inverters permit the rapid change from one state to the other.
Patent DE-2337913-A1 (DE)
Title: Multiple rolling machine for wire sizing - pairs of rolls with alternating vertical and horizontal rotating axis
Inventor: BUEHLER MAX
IPC: B21B13/12
Filed: 1973-07-26
Abstract: A small light weight rolling machine has pairs of rolls which are arranged in series and alternate pairs of rolls rotate about vertical and horizontal axis. This forms a suitable gap for straightening and sizing the wire. The rolling stands of every other pair of rolls are mounted on an inclined plane so that they can be adjusted. This arrangement is used for aligning a number of different wire sizing grooves which are arranged in parallel in the rolls for bringing them into common rolling alignment. The inclination of the roll mounting plane is 45 deg. The rolling stands are adjusted by means of leadscrews. This machine is used at considerably higher working speeds and the changeover from one size to another is carried out rapidly.
Patent DE-2338448-A1 (DE)
Title: Concrete smoothing vibratory device - forms shell structural elements on conveyor belt at intervals controlled by brake
Inventor: RIKER RUDOLF
IPC: B28B1/087
Filed: 1973-07-28
Abstract: The device for thickening concrete is esp. for the manufacture of light, sheet-shaped, smooth single or double shelled structural elements on long production belts. It comprises a guide-section on the belts and a vibratory device guided on it. The guide-section simultaneously forms the external edge-strengthening of the production bolt and is shaped as a vertical I-section with the lower third standing free and acting as a guide for a clamping-jaw-vibratory device which moves itself forward by the rotational movement of the vibrating motor. The speed of movement is controllable by a braking device coupled with the vibratory devicE.
Patent DE-2340978-A1 (DE)
Title: High-power flashing light barrier transmitter - has transistor controlled transmitting element using minimum energy
Inventor: RIMBRECHT PETER
IPC: H05B44/00
Filed: 1973-08-14
Abstract: The base of the transistor is connected to a voltage source via a resistor so that the current for changing-over the transistor to the conducting state is too low. The base continues to be connected to a capacitor charged via a resistor. Dependent on the charge, the transistor is changed-over to the conducting state, when the transmitting element is excited for emitting the light and the capacitor is discharged. During pauses between two successive light pulses, only a small amount of current is required, for charging the capacitor. Almost the only energy required, is used during the emission of the light pulses.
Patent DE-2342520-A1 (DE)
Title: HV gas-blast cct. breaker - has pressure chamber connected to electrode forming nozzle and expansion chamber for arc quenching
Inventor: BRUECKNER PAUL PROF DR ING DR
IPC: H01H33/985
Filed: 1973-08-23
Abstract: The nozzle is rated with respect to high light arc currents to be quenched in such manner that the light arc upsetting pressure causes its temporary clogging. During this clogging the light arc is stabilised in the direction of the nozzle axis. The current is caused to flow through the electrodes in opposite direction to the surrounding current leads, the latter being in the form of a hollow conductor surrounding the electrodes and the gap between the same in concentric manner. The metal hollow conductor may form a part of the quenching chamber wall which is directly exposed to the light arc radiation. The hollow conductor may form a part of the outer jacket of the switching pole and may have cooling ribs in the direction of current flow.
Patent DE-2343341-A1 (DE)
Title: Alumino-silicates septd. into components - by combination of extraction with sulphuric acid and pptn. with ammonia and caustic soda
Inventor: MELKONIAN GAREGIN SARKISOWITSC
IPC: C01F7/26
Filed: 1973-08-28
Abstract: The prior art process for prepn. of clay and co-prods. from natural alumino-silicane raw materials by digestion with H2SO4, filtration, and pptn. of Al and Fe hydroxides with NH3, followed by purificn. of Fe (OH)3 is now modified by using as raw material alkaline alumino-silicate obtd. by alkaline treatment of perlite, digesting with 80-90% H2SO4 and purifying the sludge obtd. by NH3 pptn. by extraction with NaOH. Mixts. obtd. in the process which are free of Fe and Al are mixed with perlite and chalk, the mixt. dried and granulated, and used as glass-making additive. Filtration of H2SO4 digest is rapid. Raw material contd. 38% SiO2; 29% Al2O3; 19; R2O; 1.68% Fe2O3; 1.62% CaO; 0.7% MgO; loss of wt. on fusing 10%; and was extracted with H2SO4 to give solid contg. 81.4% SiO2; 0.4% MgO; 1.2% Al2O3; 0.2% Na2O; 0.2% K2O. 0.6% CaO; traces Fe2O3; loss of wt. on fusing 16.0%. The filtrate was treated with 25% aq. NH3, filtered, and the solid extracted with 400-450 g/l Na2O. The extract after carbonation and calcining was 99.6% Al2O3; 0.25% SiO2; 0.14% Na2O; 0.01% Fe2O3.
Patent DE-2343651-A1 (DE)
Title: Cover for plumbing shafts - internal trough with water drainage and ventilation channels
Inventor: LEUZE HANS DIPL-ING
IPC: E02D29/14
Filed: 1973-08-30
Abstract: Cover for plumbing shafts consists of a frame with a cover fitting into it. A trough hollowed out of the frame and connected with the surface by perpendicular channels, has lower water drain channels, leading outwards and upper ventilating channels leading to the shaft. Preferably the trough is upwardly fully open and covered with a cover which contains the perpendicular channels. The frame may consist of an outer frame and an intermediate frame which receives the cover, with the trough between them. The cover prevents entry of water, but permits ventilation of the shaft.
Patent DE-2344716-A1 (DE)
Title: Loose leaf binding strip attachment - using an adhesive coating to file accounting documents together with the corresponding statements
Inventor: BLOTTNER REINHARD DR
IPC: B42F5/00
Filed: 1973-09-05
Abstract: Binding strip attachment according patent application 2318100 for the binding of every type of receipt or accounting document, such as bank or post cheque statements, together with the documents belonging to them. Filing folders or quick filing sheets of format DIN A4 or DIM A5, either upright or across, are fitted with several horizontal binding strips marked for the filing of accounting documents, and extending from the holed binding edge with an adhesive coating of a height of 1 to 3 cms, which are glued over when used. The horizontal filing strips are made up with a coating of dried adhesive.
Patent DE-2345165-A1 (DE)
Title: Fabric-based laminates - using non-woven fabrics, having improved mechanical and electrical props
Inventor: WACHTER GUENTER
IPC: D04H1/498
Filed: 1973-09-07
Abstract: The fabric for impregnation has longitudinal and alteral threads which are scarcely bound together. The threads cross at an angle of up to 90 degrees and are connected by loops, by needling or enmeshing. They may be cotton or other fibres. The fabric is impregnated more readily and therefore produces improved quality of laminated articles.
Patent DE-2354045-A1 (DE)
Title: Metal wrapped wire with nickel-iron core and inter. layer - between copper sheath and outer silver layer preventing alloying
Inventor: SCHILLING WERNER DR
IPC: H01K1/40
Filed: 1973-10-29
Abstract: Metal wrapped wire with Ni-Fe core and a Cu sheath has an outer Ag layer over an inter. metal layer (I) preventing alloy formation between the Cu and the Ag. (I) pref. consists of Ni but can also be Cr, Pb or V and pref. is 1-4 um thick, whilst the outer Ag layer is 0.8-2 um thick. Prods. are used as lead-in wires for gas- and vacuum-tight sealing of electric lamps, esp. small lamps, e.g. socket-less miniature lamps or glass socket lamps. The finished lamps are resistant to oxidn., even when stored for long periods, so that there are no soldering or contacting difficulties and they remain reliable.
Patent DE-2364283-A1 (DE)
Title: Bathroom scale with lever system in housing - controls the movement of a scale graduated in units of weight
Inventor: WAIDA HIDEO
IPC: G01G19/44
Filed: 1973-12-22
Abstract: The scale comprises a fixed reference mark for the weight reading, and an illumination device for the scale. A common light conductor is allocated to the light source and the reference mark. The light conductor is U-shaped and one of its arms forms the reference mark, while the other faces the light source. The illumination device consists of a light source in a closed case through which passes the other arm of the light conductor. The light source case wall is cup shaped and provided with a reflecting coating.
Patent DE-2365897-A1 (DE)
Title: Washer pressing connecting branch fastening device for ball tap
IPC: F16K5/06
Filed: 1973-12-08
Abstract: "No further information has been published for this application".
Patent DE-2400288-A1 (DE)
Title: Single track roller skate - has four wheels with each pair of wheels having mutually perpendicular axes
Inventor: HEITKOETTER WALTER
IPC: A63C17/06
Filed: 1974-01-04
Abstract: The frame of the roller skate is of triangular section with the base uppermost. Each pair of wheel spindles project at right angles to the sides of the triangle and carry the wheels. The wheels have a central bore to suit the spindle and the cross section of the wheel is formed by a circular arc struck from a centre which is at the intersection of the axes of the spindles. The rim of each wheel is bevelled so that there is a small parallel gap between the wheels of each pair. This arrangement of the wheels runs on only a single line track.
Patent DE-2401891-A1 (DE)
Title: Joint between drill and drilling machine - with profile of joint formed by un-interrupted gradually joining mathematical lines
Inventor: KLEINE WERNER KURT MAX
IPC: E21B17/03
Filed: 1974-01-16
Abstract: Joint between stone drill and drilling machine is especially used for connecting a percussive drill and a drilling machine. It consists of a shaft end of the drilling tool located in a sleeve of the drilling machine. The profile of the shaft end projecting in the sleeve consists of a three lobed shape whose sides are gradually joined together without sharp transition points. The opening of the sleeve in which the shaft end is located has a corresponding profile. The shaft end and the sleeve profile are formed by an ellipse or by a curve similar to an ellipse on or by a polygon. The profile of the shaft end and the sleeve is made from injection moulded or cast plastics.
Patent DE-2403505-A1 (DE)
Title: Welding cable with twisted strands - individually coated with wear resistant material
IPC: H01B9/00
Filed: 1974-01-25
Abstract: A welding cable, esp. for a spot welding machine, consisting of twisted strands inside a sheath and sealed at the ends in ferrules with cast tin, is improved by each strand being sheathed in an elastic, esp. wear resistant material. Wear of the individual strands is reduced and denting of the strands in the ferrules is avoided. The wear-resistant material may be chloroprene or polyurethane applied before or after cutting the strands to length.
Patent DE-2405146-A1 (DE)
Title: Fluid volume flow meter with rotor inside chamber - has measuring cavities receiving flow of liquid for measurement
Inventor: FRIEBEL EBERHARD DIPL ING
IPC: G01F3/06
Filed: 1974-01-31
Abstract: The flow meter has parts which execute a lifting movement in the rotor and are guided by means of a control device on a path eccentric tot he axis of the rotor. The measuring cavities are separated from one another by fixed partitions of the rotor. The parts executing a lifting movement are designed in the form of pistons and one piston is assigned to each measuring cavity. Each piston can be connected to a guide roller which, together with a stationary cam plate, makes up the control device. Opposing pistons can be connected together by rods, each of which can be connected at one end to the guide roller.
Patent DE-2416574-A1 (DE)
Title: Combined pressure regulator for twin brake circuits - with common support spring and compensating valves to increase pressure in good circuit
Inventor: THOMAS ALFRED WILLIAM
IPC: B60T8/26
Filed: 1974-04-05
Abstract: The rear wheels are braked by two separate circuits using separate brake pressure modulators. The two modulators are combined in one housing, in a series configuration, with a spring holding them apart. In the case of failure of one system the braking effect of the remaining circuit is automatically applied to the two rear brakes, with full compensation of brake pressure using two sets of control valves in the side of the housing. The piston within the housing is sealed by a resilient material ring which separates the high and low pressure chambers.
Patent DE-2418240-A1 (DE)
Title: Electro-static photocopying process - uses developer which is introduced onto back of copy while it is on the drum
Inventor: WEIDKUHN GERT
IPC: G03G15/10
Filed: 1974-04-13
Abstract: While the paper on which the copy is to be produced is on the charged Se-drum, developer is introduced onto the back of the copy by several introducing and rehousing jets. A developing unit is preferably provided at the point where the copy is in contact with the charged drum. Uncoated paper can be used and the drum does not need to be cleaned. The photosensitive film is typically of selenium. The technique enables coloured photo copies to be obtained.