baber/WOPTO huggingface dataset:
Patent DE-2057056-A1 (DE)
Title: Aq polymer soln - which does not undergo shear degradation when forcibly displaced
IPC: C09K8/588
Filed: 1970-11-20
Abstract: A water-soluble compsn. comprises (I) 2-92 wt % of a synthetic, water-soluble, solid polyamide or polyethylene oxide of ave. mol. wt >500,000, the polymer being useful in concns. of 20-50,000 p.p.m. and being dispersed in (2) 8-98 wt % of a liquid surfactant which comprises an oxyalkylated adduct of a hydrophobic polyol and selected from (a) a cpd. of formula: Y (C3H6O)n (C2H4O)m H x, where Y is the residue of a 2-6C organic cpd. and contng. x reactive H atoms in which x is >=2, n has a value such that the mol. wt. of the polyoxypropylene base is >=900 is not >4000 and m has a value such that the oxyethylene content of the molecule is 10-90 wt % (b) the adducts of 8-22C aliphatic alcohols with ethylene- or propylene-oxide or mixtures of these, the adducts comprising 40-80 wt % of ethylene oxide and having a mol. wt. of 400-1000, and (c) cpds. of formula: Y (- P - E - H)x where Y is the nucleus of an organic reactive H cpd. contng. x reactive H atoms and having =6, inclusive, C atoms, x is an integer, P is a hydrophobic polyoxyalkylene chain having an O/C atom ratio of is not >0.40, the mol. wt of P and the value of x being such that the molecule, excluding E, has a mol wt. of >=400-900 and =25,000 and E is a hydrophilic heteric polyoxyalkylene chain which (I) containsoxyethylene gps. and >=5 wt % of higher mol wt >=3C oxyalkylene gps. and (2) has an ave. O/C atom ratio >0.40, E being present in the compsn. to the extent that it constitutes 50-90 wt % of the total compsn. The aq. soln. can be forcibly displaced by a pump etc. without shear degradation of the polymer component, and is useful in waterflooding oil recovery processes.
Patent DE-2118943-A1 (DE)
Title: Bis (substd azabenzimidazolate) anti-fog agents
IPC: G03C1/34
Filed: 1971-04-19
Abstract: Bis substd. azabenzimidazolate anti-fog agents. Formation of fog during conventional photographic development is prevented by developing in the presence of an anti-fog precursor of formula (I), which can be hydrolysed by the compsn. A - X - A (I) (where each A is an anti-fog nucleus of formula (II), (III) or (IV), Z is N or CR, R is H or lower alkyl, F is the non-metallic ions required to complete the heterocyclic ring, and X is Cu, Zn, Hg, Pb, Sn, Ni, Cd, Co, Mn, Ca or Fe, the metal being joined to each anti-fog nucleus at posns. preventing an anti-fog action during fixing). Pref. the agent is a bis(substd azabenzimidazolate).
Patent DE-2131580-A1 (DE)
Title: Fitted shelves or boxes - simple fitting by connecting elements with mandrels in the corners with tubes or perforated plates
Inventor: JUERGENS WALTER DR-ING
IPC: A47B87/02
Filed: 1971-05-05
Abstract: Simple and easy building up of shelves or boxes above each other or sideways by fitting the mandrels on top and below the shelf or box into tubular columns or connecting them by perforated plates.
Patent DE-2145510-A1 (DE)
Title: Synthetic leather - using thermoplastic film which gives heat adhesion applied to carrier
Inventor: PANNENBECKER HEINRICH
IPC: D06N3/00
Filed: 1971-09-11
Abstract: The carrier is a woven or non-woven, natural or synthetic fibre material which can be embossed to give the pattern to simulate leather. The thermoplastic film is a self-supporting material, of 20-50 mu thick polyurethane or copolyamide which is applied by contact heat, e.g. with an iron, to develop its adhesive qualities to cling to the roughened outer surface of the carrier. Developes a cladding film which gives overall adhesion without stiffening the carrier which would detract from a leather-like appearance and supple feel.
Patent DE-2152868-A1 (DE)
Title: Chloridising roasting of ceramic and metallurgical materials - - using pvc waste as chlorine source
Inventor: HUMS DIETER DIPL ING DR
IPC: C22B1/08
Filed: 1971-10-23
Abstract: Ceramic and metallic raw materials and semi-products are subjected to a chloridising roasting to remove the Fe content using PVC waste material as the source of Cl and HCl. As the PVC is cheap there is no need to recover gases leading to a reduction in corrosion of equipment and reduction in the amount of ancillary equipment required.
Patent DE-2165932-A1 (DE)
Title: Carbide tipped tool - with an epoxy resin holder reinforced with embedded fibreglass etc
Inventor: WEITH WERNER
IPC: B23B27/18
Filed: 1971-12-31
Abstract: The tool holder is made of a casting plastic, pref. epoxy resin and steel wire, fibre glass or a hard alloy etc. is embedded into it during moulding as reinforcement.
Patent DE-2215369-A1 (DE)
Title: Finned tube condenser - with tubes fed from both ends and uncondensed gases extracted from centre
Inventor: KELP FRITZ DIPL ING
IPC: F28B1/06
Filed: 1972-03-29
Abstract: A tube condenser comprises finned tubes supplied with steam in parallel from headers at both ends of the tubes, with an open-ended, smaller dia tube projecting into each of these tubes to extract non-condensed gases, the upper steam header is sub-divided by a partition into two spaces, one being supplied with steam from an inlet pipe, and the other serving for extraction of the non condensed gases, which leave this space via a second pipe, the smaller dia. tubes projecting into the main tubes are all connected together at the top. Steam entering at both top and bottom flows from opposite ends into some of the tubes, is condensed and produces condensate which descends under gravity to leave from the bottom header, those tubes not supplied with steam from the top receive steam from the bottom only, the internal tubes, being all connected together at the top above the top ends of the finned tubes, pass the extracted gas from the finned tubes which are steam supplied at both ends into the finned tubes, which are steam supplied at one end only, these non-condensed gases then being removed from the opposite end of this finned tube.
Patent DE-2225452-A1 (DE)
Title: Chromatographic adsorption agent - by hydrothermal treatment of silicon dioxide xerogel
Inventor: KISELJOW ANDREJ WLADIMIROWITSC
IPC: C01B33/16
Filed: 1972-05-25
Abstract: Adsorption agent with large pores for use in chromatography is prepd. by (a) mixing finely divided, non-porous SO2 with a specific surface of 35-380 m2g-1, with water, (b) drying the aq. suspension at 100-450 degrees C to form a SiO2 xerogel, (c) granulating the xerogel, (d) subjecting the prodt. to hydrothermal treatment in an autoclave at 100-380 degrees C under a pressure of 1-300 atm., and (e) drying at 100-300 degrees C. Can be used to treat biopolymers and viruses.
Patent DE-2228084-A1 (DE)
Title: Column tray discharge shaft - for large dia process columns, with tension cords beneath shafts
Inventor: ZITZMANN HUBERTUS DIPL ING
IPC: B01D3/22
Filed: 1972-06-09
Abstract: A reinforced, self-supporting discharge shaft for the trays of distillation, rectification, absorption or desorption columns is constructed as follows: beneath each of the parallel discharge shafts underneath the trough there is a tension bar to increase the characteristic value for the permissable load in respect of strength and deflection. Pref., the tension bar is connected, e.g., welded, to the extended end plates of the shaft. In between the end plates, the distance between the tension bar and the trough is maintained by distance angle members. This arrangement enables the optimum height between successive trays, in large dia. columns, as determined hydraulically, to be maintained with adequate structural strength.
Patent DE-2313044-A1 (DE)
Title: System for breaking oil-in-water emulsions - by multistage multi effect evaporation
Inventor: ACKERMANN ULRICH
IPC: C10M175/04
Filed: 1973-03-16
Abstract: Break-up of oil/water emulsions, and particularly the separation of oil-in-water emulsions for cooling and lubricating purposes, by carrying out the separation in a number of stages, in such a way that in the first stage predetermined amounts of the original emulsion are heated in countercurrent followed by evaporation and vapour separation, the conc emulsion being separated and recycled to the original emulsion and the vapours condensed, the condensate then being passed to at least one subsequent evaporation stage in countercurrent with the vapours from a further stage, liquid and vapour then again separated the condensate therefrom being discharged.
Patent DE-2317022-A1 (DE)
Title: Multilayer printed circuits on alumina substrates - with metallic layers and dielectric layers with holes
Inventor: VOGLER FLORI
IPC: H05K1/03
Filed: 1973-04-05
Abstract: Printed circuits on ceramic substrates, esp. multilayer circuits on alumina, have resistance- metallic- and dielectric- layers made by silk-screen printing, the connecting holes in the dielectric layers being formed in the printing process. Solderable conductors of min. width of 200 mu m and surface resistance of only 5 milliohms per square can be obtd. and dielectric layers of matls. with dielectric constants from 5-500, 20 mu m thick and dielectric strength of 500 V/20 mu m, with trouble-free connecting holes of min dia. 0.3 mm made by printing. Holes can be provided in the top dielectric layer, through which the lower conducting layer can be tinned and a dual-in-line package with shortened legs soldered onto the conducting layer by reflow-soldering using flux or a neutral atmos.
Patent DE-2332301-A1 (DE)
Title: Explosive tube connecting system - hollow muff around joint line houses explosive charge
Inventor: BIENIEK EDUARD
IPC: F16L21/00
Filed: 1973-06-26
Abstract: Around the joint between two pipes abutting end to end is fitted a hollow muff, the outer wall of the muff being thicker than the inner wall, and the hollow chamber being filled with liquid, and surrounding the explosive charge. The charge is externally detonated, and the two ends may be elastically joined. The method may be used to join plain tubes or helically wound tubes.
Patent DE-2337734-A1 (DE)
Title: Warp wiring pistol mounting for wiring machine - uses circular guide bracket on sliding carriage with electromagnetic controllable stop catches
Inventor: PROKASKY NORBERT
IPC: H05K13/06
Filed: 1973-07-25
Abstract: The permanently clamped pistol-like wiring tool of wiring machines especially of the wrap wiring type can swing sidewise so that the opening of the wiring piston remains close to the pin to be wrapped and without obstructing the visibility. The clamping device consists in its upper part of a guide bracket of circular shape to facilitate sidewise movement of the clmap holding the wiring pistol. The lower part of the clamping device can be fixed to a sliding carriage to obtain movement in the direction to the pin. The base of the sliding carriage is fixed to the table of the wiring machine. Stop-catches for different wrapping planes and for restricting the movement of the sliding carriage are controllable by electromagnets.
Patent DE-2338883-A1 (DE)
Title: Wireless transmission system - uses ferrite stub aerials and integrated ccts. as compact alarm system
Inventor: EBERHARD DIETER
IPC: G08B25/10
Filed: 1973-08-01
Abstract: A system for controlling alarm detectors within a given network, is implemented without using wires to interconnect the individual alarm stations. A carrier frequency below 10KHz is frequency modulated and used to link the individual stations. The transmission system uses a modulation-filter, whose bandwidth and centre frequency may be set using a potentiometer. The entrance within the system are ferrite stubs, and the receiver parts are mainly integrated circuits powered by a small battery. Consequently, the dimensions of the equipment are small.
Patent DE-2342522-A1 (DE)
Title: Editing and splicing system for sound striped cine film - has adjustably spaced magnetic play and re-recording heads
Inventor: BANTEL STUTTGART DR
IPC: G03B31/02
Filed: 1973-08-23
Abstract: The film editing jig has a replay head which feeds an amplifier. The output from this is taken to a recording head which is spaced from the replay head by a variable number of film frames. This distance can be set to that required by the user's projection equipment. The position of the magnetic heads can also be varied relative to the longitudinal centre of the film. A delay facility uses an endless sound tape loop in conjunction with a pair of magnetic heads and two-way switching. The arrangement simplifies film editing and ensures a continuous sound accompaniment.
Patent DE-2352692-A1 (DE)
Title: Heart pulse frequency meter - has meters for average frequency, flutter value, and drift
Inventor: LAUKIEN GUENTHER PROF DR RER N
IPC: A61B5/024
Filed: 1973-10-20
Abstract: Heart pulse frequency meter has a timer for the period between 2 or somewhat more successive heart pulses; the frequency is derived from the duration. Preferably at least one average value meter determines the average of the instantaneous heart pulse frequency within a given time interval. Flutter value meter(s) determine the difference between the instantaneous and the average heart pulse frequency, and has a unit for forming this difference or its square. A drift meter determines the difference between the mean values at 2 different times. The measurements are made in a very short time.
Patent DE-2357851-A1 (DE)
Title: 4H-inden(1,2-B)-thiophen-4-ones, prepn - sensitisers for organic photoconductor in electrophotographic material
Inventor: HASHIMOTO MITSURU
IPC: G03G5/06
Filed: 1973-11-20
Abstract: Title cpds. of formula (I):- (in which R1, R2 and R3 are H or NO2), are used in an amt. of 0.01-1.2 (0.1-1) mole per mole monomer or monomer unit of the organic photoconductive monomer or polymer. Unlike organic dyestuff sensitisers, they are not bleached, leading to rapid loss of sensitivity in the visible region. They are prepd. by reacting Cl, Br or I derivs. of the corresp. alkyl benzoate and thiophen, hydrolysis with aq. NaOH, ring closure in the presence of polyphosphoric acid and opt. nitration.
Patent DE-2360595-A1 (DE)
Title: Iron ore-based pellets for blast furnaces - contg. a blend of iron ore with cement-iron powder mixture and water
Inventor: SHIMADA SHUNSAKU
IPC: C22B1/243
Filed: 1973-12-05
Abstract: Pellets for blast furnaces are made by blending 98-60 wt. % iron ore with 2-40 wt. % of a mixture comprising 95-15 wt. % cement and 5-85 wt. % iron contg. powders 100 mesh, with addition of 9-20 wt. % water on the bases of the mixture. The iron-contg powder may be made by cuiting iron scrap, or from atomised Fe powder, reduced Fe powder or ferruginous scale and is pref. 300 mesh (Tailor). The cement may be Portland, pozzolan slag or aluminate cement, pref. 20-60 wt. %. The mixture is blended with 90-70% of an iron ore, 2-10% of the ore pref. has a grain size of 0.25-1mm. 5;-200 mesh cutting scrap, 10% alumina cement, 50% iron sand of +.25 mm an 6% of average size 0.19 mm and 35%-200 mesh sinter dust were blended and 12% water was added. The mixture was peletised and hardened for 1 month. The pellets had a crushing strength of 143.2 kg/pellet Fig. 3 shows the properties of the pellet (2) compared with standard Wayara pellet (1) and Grancold pellet (3).
Patent DE-2361332-A1 (DE)
Title: Shutoff device for fluids and gases - has housing, connection pipe and operating mechanism for sphere with ring sealing
IPC: F16K5/06
Filed: 1973-12-08
Abstract: The design is particularly intended for spherical seated ball valves. There is an inherently stable ring seal that operates efficiently against the sphere and the housing under high loads. Only slight leakage occurs with seal erosion. The ring seal fits in a metal ring with fire resistant edge and presses against the sphere. Behind the metal ring are laminated seals that act against the housing. The laminae are supported on their inner circumference by a plate spring with wave configuration. The pipe connections to the valve are of bayonet type with locking pins. They have bearing surfaces that support the wave shaped plate spring.
Patent DE-2362402-A1 (DE)
Title: Drying air supply system for agriculture implement - has larger holes in pipes attached at lower regions of carrier
Inventor: BUCK KONRAD DR
IPC: F26B9/10
Filed: 1973-12-15
Abstract: Pipe system for introduction of drying air into agricultural appts. uses pipes releasably attached to a carrier and each upstanding from it, with a point at the free end. The pipes, fastened at the upper region of the carrier, have small holes on their long part outside the carrier. The pipes in the middle region of the carrier have medium large holes, and those fastened in the lower region of the carrier have large holes. The carrier has a sealed, elastic layer on the side facing the points. The appts. emits most of the crying air in the interior or lowermost part of the appts.
Patent DE-2402991-A1 (DE)
Title: Waste heat coil for central heating boiler - coil housed in flue gas outlet adds flow to main flow
Inventor: GRUENWALD ROBERT
IPC: F28D21/00
Filed: 1974-01-23
Abstract: A central heating boiler e.g. of domestic type, has a coiled pipe located inside the flue gas tube which extends from the side, so that water passing through the coil is heated by waste heat from the combustion chamber. This coil can be connected between the hot water output line and the return line, or in another system, water pumped through the coil from a swimming bath is heated. The coil is made from tube having a good heat conductivity e.g. copper tube, and the ratio between its length and diameter is about 10,000 to 10.
Patent DE-2405246-A1 (DE)
Title: Acoustic calling signal generating telephone circuit - uses a frequency generator and a low frequency voltage applied to the circuit
Inventor: MARTIN ERWIN DIPL ING
IPC: H04M19/02
Filed: 1974-02-04
Abstract: One terminal of the alternating voltage is connected through a diode and two resistors to the base of an input transistor in the frequency generator in the form of an R.C. generator. The transistor emitter is connected to the other terminal of the low frequency voltage source, and its collector is connected to its base through the generator capacitors and one of the above resistors, and also through the cradle switch contact in the rest state, an electro-acoustical transducer, line resistance and the above two resistors.
Patent DE-2408796-A1 (DE)
Title: Four wheel drive control for agricultural vehicle - with extra gate on first gear to select four wheel drive
Inventor: SCHULZ WILFRIED
IPC: F16H3/32
Filed: 1974-02-23
Abstract: The agricultural vehicle has a transmission which enables the driver to select four wheel drive in first gear only. The first gear shaft has a second gear wheel mounted on it to engage the gear train for the front wheel transmission. The gear lever is fitted with a modified gate in which the first gear is selected as normally for two wheel drive. To select four wheel drive the clutch is depressed, and the gear lever moved into a special setting, next to the first gear setting. Both sets of gear wheels on the first gear shaft engage their respective gears and four wheel drive is obtained. The driver can thus select the four wheel drive using the same gear lever and clutch as for the other gears.
Patent DE-2417405-A1 (DE)
Title: Electrical cable with insulated conductors in foamed sheathing - has decreasing pore sizes in outward direction towards smooth skin
Inventor: LINDEMANN WALTHER
IPC: H01B7/18
Filed: 1974-04-10
Abstract: The electrical cable cnsists of a number of metallic conductors insulated in individual thermo-plastic sheaths, and a surrounding outer sheathing made of foamed synthetic material with a smooth outer skin. The size of the pores in the foamed synthetic material decreases with increasing distance from the cable centre. The thin surface skin may also be obtained by application of an extremely thin coat of unfoamed synthetic material. The foamed sheathing may be produced by extrusion of polyethylene or polystyrole. The change in pore size from the centre to the surface may be obtained by rapid cooling of the surface immediately after extrusion.
Patent DE-2419678-A1 (DE)
Title: Jib crane or other lattice mast structure - incorporating light metal girders with end weld-on flanges
Inventor: HUBER MAX ING GRAD
IPC: E04H12/10
Filed: 1974-04-24
Abstract: The lattice mast structure, esp for crane jib arms, and similar units, assembled from various shaped bars, includes girders of light metal, and of U or rectangular cross-section, with their end joint positions fitting flat against the component to be welded on, pref. here in the shape of weld-on flaps or flanges. The struts pref. consist of rectangular-section light metal tubes between the upper chord and the lower chord concerned. Aluminium alloy is a suitable material for these components. The structure is light in weight, and easily transportable by road.
Patent DE-2429257-A1 (DE)
Title: Connection forming between silicon substrate and wiring in MOS FETS - uses insulating film over substrate surface with connecting layer on top
Inventor: KAWAMOTO HIROSHI
IPC: H01L23/485
Filed: 1974-06-19
Abstract: Connection part between the silicon substrate and an aluminium connection or wiring is provided in MOS field-effect transistors by forming first an insulating film over the entire main surface of the semiconductor substrate. Then parts of this film are removed to form window apertures. A second insulating film is formed over the entire surface and is partly removed in the window apertures and over the first film in contact with the aperture. Then the connecting layer is so formed as to contact the substrate through the window apertures, reaching from the first to the second insulating film. The insulating films are formed of silicon dioxide or phosphor silicate glass, and the apertures are preferably formed by photoetching.
Patent DE-2431983-A1 (DE)
Title: Silica-free catalysts giving reduced carbon deposn. - and used for steam-reforming, partial oxidn. or cracking
Inventor: TOMITA TADAYOSHI
IPC: B01J23/02
Filed: 1974-07-03
Abstract: Sintered catalyst are made from Ca aluminate powder virtually free from silica, opt. mixed with an oxide of Al, C, Ca, be, Mg, Sr or substance forming such oxides on heating, and contg. 10-60 wt. % CaO, 0-30% of >=1 oxide of Br, Mg or Sr, remainder Al2O3, and 0.2 wt.% silica. Used for steam forming of hydrocarbons at 850-1100 degrees C to hydrogen-rich gases, catalytic cracking at 650-900 degrees C to gaseous olefines, or partial oxidn. at 850-1100 degrees C to hydrogen-rich gases. Carbon deposn. causing de-activation is almost eliminated, and light oils may be used as the feed, instead of fractions lighter than naphtha.
Patent DE-2450791-A1 (DE)
Title: Appts. for qualitative detection of carbonates - by absorption of carbon dioxide in soln contg barium or calcium hydroxide
Inventor: DORNER STEFAN DIPL ING DR
IPC: G01N31/00
Filed: 1974-10-25
Abstract: Appts. for qualitative detection of carbonates comprises a test tube contg. the sample to be analysed and a smaller inner test tube contg. an acid (e.g. 1 M H2SO4). The outer test tube is closed with a stopper in which tube is fixed leading to a two-bulb absorber (I) contg. a Ba(OH)2 or Ca(OH)2 soln., topped with another two-bulb absorber (II) which also contains a Ba(OH)2 or Ca(OH)2 soln. When the appts. is assembled, some acid is splashed onto the sample; the CO2 evolved (if a carbonate is present) is absorbed in (I) and produces turbidity in the soln. therein. Absorber (II) prevents the access of atmospheric CO2 to absorber (I). Method is simple and reliable.