baber/WOPTO huggingface dataset:
Patent DE-2030124-A1 (DE)
Title: Treating magnesia based refractory objects
IPC: C04B41/91
Filed: 1970-06-18
Abstract: The objects is immersed adjacent to the cathode in an electrolytic apparatus having a mixture of phosphoric acid, isobutanol and water as the electrolyte, and electrodes inert to the electrolyte under operating conditions. Electrical current flows in one direction only and causes local dissolution of the object. The object is held next to the cathode until the desired grade of local dissolution is achieved. After this, the object is removed from the electrolyte.
Patent DE-2043111-A1 (DE)
Title: Lightweight cement panel with a facing - layer
IPC: E04C2/04
Filed: 1970-08-31
Abstract: A tongue and grooved panel carries an additional grooves along each edge to receive return flanges of the cladding layer. These flanges are forced into the grooves, secured by adhesive and wedged in position by inserts.
Patent DE-2054844-A1 (DE)
Title: Split shuttle - with opening located behind the shuttle tip
IPC: D03J5/00
Filed: 1970-11-07
Abstract: The side of the shuttle which contains the guide face for passage through the loom has the opening of the split located between the curve to the pointed tip and the tip itself. The split follows a light curve to the point of entry. The purpose is to present a smooth and unbroken guide surface, so that the shuttle is not deflected in its passage, and to prevent the risk of warp yarns fouling.
Patent DE-2106813-A1 (DE)
Title: Stable epoxide resin/hardener/pptd silica powder mixt - - strengthening additive for mortar and concrete
IPC: C08K3/36
Filed: 1971-02-12
Abstract: Strengthening additive, esp. for cement mortar and concrete is produced using liq. glycidyl polyether as resin and liq. hardener, both of which contain pptd. silica powder before they are mixed in stoichiometric ratio. The silica converts the components and the mixt. itself into powder form, which has unlimited storability in the absence of moisture. Addn. of this mixt. is not detrimental to the storability of cement and improves its mechanical strength, imperviousness and chemical stability.
Patent DE-2123420-A1 (DE)
Title: Porous flexible fabric - esp of high density
IPC: D04H13/00
Filed: 1971-05-12
Abstract: A porous-flexible fabric, for consumer or throw-away articles, comprises non-woven fabric, reinforced paper or composite material possessing a dislocation structure; the fabric structure is drastically displaced and fixed and has approx. doubled density; it may be combined with another porous and/or non-porous material to form a composite or sandwich material. Pref. materials include reinforcement of polyester, polyethylene, PVC or wire and bonded foam layers of polyethylene, polyvinyl acetate, cellulose sodium xanthogenate, formaldehyde condensation products, polystyrene and PVC and natural or synthetic rubbers.
Patent DE-2155542-A1 (DE)
Title: Opto-electronic signal generator contg liquid - crystal - having electrodes provided with protective coatings and car
Inventor: GRABE BERNT VON
IPC: G02F1/1343
Filed: 1971-11-09
Abstract: Deterioration of the electrodes is prevented by a protective coating made pref. of amorphous Se, As2S3, Al2S3, SiO, Teflon, Mylar (RTM), montan wax, paraffin wax or polystyrene. At least one of the electrodes has a perforated pattern (pref. in the form of a letter), and pref. consists of a number of segments. High contrast is achieved even at weak currents. These generators can be used in display devices.
Patent DE-2155747-A1 (DE)
Title: Vulcanising conveyor belt joint - in successive stages esp for jointing large belts on site
Inventor: SPAAR GERD
IPC: F16G3/10
Filed: 1971-11-10
Abstract: A method of joining together two ends of a cord-reinforced conveyor belt, uses successive vulcanisation of different portions of the joint region. Pref. the middle portion of the joint is first vulcanised then the two bordering zones. The method enables smaller plant to be used for a given size of belt.
Patent DE-2166093-A1 (DE)
Title: Forging and hammering machine - with punch for application of either action
Inventor: BACHMENN HORST
IPC: B21J11/00
Filed: 1971-06-30
Abstract: The machine is fitted with a sliding table on which are mounted the dies, which act in conjunction with the tools attached to the machine punch, a manipulating device is provided at either side of the slide. The dies may slide out from under the punch and the machine. The manipulating arms are vertically axis swivel mounted and are fitted with gripping elements. The prefd. machine permits the alternative forging or hammering to take place at will, the punch being connected to either mechanisms. The slide mounting of the tools permits the handling of long workpieces.
Patent DE-2242966-A1 (DE)
Title: Alkaline solns of murexide - a stable reagent for titrimetric and/or automated detn of calcium
Inventor: RATHJE WERNER PROF DR
IPC: G01N31/22
Filed: 1972-08-30
Abstract: Murexide (0.01-2.0 g.l-1) is dissolved in a di- or poly-ol opt. contg. =30% alkanol, and contg. an alkali metal alcoholate (0.01-0.20 mole l-1) added, or prepd. in situ. The reagent has pH 10.5-13 and is stable. It is used in the detn. of calcium in the presence of 1-10 vols. H2O.
Patent DE-2258980-A1 (DE)
Title: Metal casting - under salt bath
Inventor: WILSON WENDELL B
IPC: B22D21/00
Filed: 1972-12-01
Abstract: The casting of the metal is done while this and teh mould or die, into which it is cat are below teh surface layer of a non-metallic inorg. melt. The prefd. system provide a metal melt filled tank below salt bath level into which the die is lowered. The method permits metal casting and subsequent heat treatment etc., away from atmos. and is cheaper and simpler than vacuum casting.
Patent DE-2262008-A1 (DE)
Title: Glazed ceramic crockery - is oven dried after decorating and glaze application
Inventor: KOBSCH ERWIN
IPC: C04B33/30
Filed: 1972-12-19
Abstract: The tableware is passed after the first firing both after decorating prior to and after glaze application through ovens at abt. 100 degrees C, where the moisture content is lowered to 1%. Tunnel ovens are pref. used the ware being positioned on revolvable trays on a moving chain belt.
Patent DE-2315318-A1 (DE)
Title: Water-filled fuel element storage tank - forming part of a safety vessel for a nuclear reactor pressure vessel
Inventor: KRIEGER RUDI
IPC: G21C13/00
Filed: 1973-03-27
Abstract: Assembly of a fuel element storage tank for a nuclear reactor with a cylindrical safety vessel, the wall of which projects above the upper end surface and upper boundary of the reactor pressure vessel and delimits the flooding chamber and the tank for depositing reactor core components, while the fuel element storage tank is suspended on the outer wall of the safety vessel in the form of an annular chamber. In particular, a fuel element transposing machine is provided running on a circular track above the fuel element transfer tank in addn. to the fuel element exchange machine. Arrangement provides improved safety against evolution of steam and radioactive gases should the pressure vessel be damaged.
Patent DE-2326743-A1 (DE)
Title: Foam generation for cleaning esp. carpets - by preparing gas for foaming up liquid from separately stored components
Inventor: ZIMMERMANN ERICH
IPC: A47L11/32
Filed: 1973-05-25
Abstract: Foam for cleaning textiles is generated by chemically prepg. the gas required to froth up a liquid through controlled content of >=2 separately stored components (A and B) which react on contact so as to release gas. >=1 of the components contains wash-active matls. Pref. (A) is a (di)carbonate and (B) is an acid e.g. H3PO4 or AcOH and >=1 of components is dissolved in water. A large foam vol. with high cleansing power can be obtd. spontaneously. Cleansing activity may be influenced by choosing reagents. Thus Na2HPO4 and NaH2PO4 (formed from NaHCO3 and H3PO4) support cleaning process. NaH2PO4 helps to revive colours.
Patent DE-2334768-A1 (DE)
Title: Methallyl sulphonate salts prepn - from isobutene and dioxan-sulphur trioxide adduct
Inventor: OKUMURA OSAMU
IPC: C07C67/00
Filed: 1973-07-09
Abstract: Isobutene and SO3/dioxan adduct are reacted in mole ratio isobutene : SO3 0.90-1.20 and dioxan : SO2 0.6-2.0 in an inert solvent at 10-65 degrees C and after evapn. of solvent, the reaction liquid is neutralised with alkali. These ratios and temps. give min. side reactions and improved yield and prod. purity.
Patent DE-2343042-A1 (DE)
Title: Piston-operated flexible hose diaphragm pump - has two coaxial hoses with intermediate space communicating with outside
Inventor: TUCHENHAGEN OTTO
IPC: F04B43/00
Filed: 1973-08-25
Abstract: The piston acts on a liquid filled annular space surrounding the outer hose. The impulse created by the piston action is transferred to the inner hose. The hose ends are secured at both ends in end covers of the housing which is integral with the pump cylinder in which the piston operates. There are ball check valves at inlet and outlet of the pump.
Patent DE-2350604-A1 (DE)
Inventor: GRIFFITHS EDWARD J
IPC: F16L21/08
Filed: 1973-10-09
Abstract: The ends of two axially aligned conduits have a cylindrical sleeve mounted thereon. An O-ring seal is mounted in an annular groove formed on the end of each conduit to abut the sleeve in sealing contact. Each end of the sleeve has a pair of clip members attached thereto which cooperate with a shoulder formed on a respective one of the conduits to prevent the conduits from moving axially away from the sleeve.
Patent DE-2354500-A1 (DE)
Title: Work table for drilling machines - has table section and enlarged working and location surface
Inventor: WEIDLICH HORST
IPC: B23Q1/74
Filed: 1973-10-31
Abstract: Drilling machine work table which comprises a table part, and a section for location of the work piece. This location section has an enlarged working and location surface and, with the table part, is movable and lowerable away from the working surface area. On two opposite sides of the table part a flat location surface which comprises the work and location surface is located. The table part is rectangular in basic shape, and is fixable to the drilling machine table by means of bolts, and engages with the drill machine table via a recess on the under side of its working and location surface.
Patent DE-2355793-A1 (DE)
Title: Juxtaposed textile web decatising appts - with three draw off rollers defining a meandering path for the webs
Inventor: HIRSCHBERG KLAUS
IPC: D06B7/08
Filed: 1973-11-08
Abstract: Juxtaposed knitted webs impregnating device including a set of webs draw off rollers followed by an impregnating bath and a set of webs squeezes rollers has the set of draw off rollers composed of two external rollers disposed in a common horizontal plane and a third roller disposed between and below two of the rollers, the rollers defining a meandering path for the webs and the third roller being driven. Used for decatising a number of juxtaposed webs. Roller assembly permits uniform shrinkage to all webs.
Patent DE-2358754-A1 (DE)
Title: Central heating plant output control - by altering flow, or bypass, of heat carrier in dependence on feed and return temp. difference
IPC: F24D19/10
Filed: 1973-11-26
Abstract: The power of the circulating pump for the heat carrier is controlled in dependence on the difference between the feed and return of carrier, being reduced as the difference becomes smaller. Preferably a pump of constant delivery is used, and behind it a partial stream of carrier is diverted and fed in again before the pump, with its amt. controlled in dependence on the temp. difference. The feed temp. is measured directly after the point where the partial stream is diverted. Automatic control may be effected in dependence on the external temp.
Patent DE-2358961-A1 (DE)
Title: Hyperboloid-shell natural-draught cooling-tower - containing vertically running hollow spaces over whole height
Inventor: ZERNA WOLFGANG PROF DR ING
IPC: E04H5/12
Filed: 1973-11-27
Abstract: The tower is for return cooling of the cooling water in high-output steam power plants, with cooling air led through by natural draught, and comprising a shell with supports enabling it to stand on a base. The shell, which contains the hollow spaces extending vertically over its whole length, is pref. double-skinned, with inner and outer walling mutually braced by means of continuous reinforcing elements running vertically from bottom to top, which may be formed in one piece with the two skins, or which may be prefabricated components with inner and outer edges led into the two skins. The shell may be of lattice-girder cross-section. Towers of increased size are practicable.
Patent DE-2359954-A1 (DE)
Title: Distributor tray for packed column - contg. expanded metal downpipes and peripheral skirt in widened out dia of column
Inventor: STAGE HERMANN DIPL CHEM DR
IPC: B01D3/00
Filed: 1973-12-01
Abstract: A distributor tray for packed or trickling columns described in the parent patent has all upstanding tubes on the tray machined to the same level after weld-distortion of the tray has taken place, each of these tubes carries a suspended internal tube esp. of expanded metal extending down to the packing or tickling unit below. The dia. of the column in the distribution region is greater than that in the packed or trickling regions. In present patent the distributor tray dia. is smaller than the local dia. of the column and the tray has a hanging skirt suspended from its periphery and formed of perforated material, esp. expanded metal, this skirt also extends to the packing/trickling surface. Used to reduce the flow resistance offered to the gaseous phase in the region of the distributor tray.
Patent DE-2406433-A1 (DE)
Title: Rear wheel suspension - with pivot mounting for tracking axle between mounting points of trailing arms
Inventor: BUFLER ERNST DIPL ING
IPC: B60G21/055
Filed: 1974-02-11
Abstract: The rear wheels are supported at the free ends of two trailing arms which are pivotted on the chassis by elastic bearings. The pivot points are joined by stabilising axle across the vehicle, with the ends of the axle pivotted at special joints. This ensures correct tracking when the vehicle rolls on cornering. The wheels are joined by a transverse leaf spring whose central section is joined to the chassis by diagonal struts hined at both fitting points. The stabilising axle produces a parallelogram motion in the hinged suspension points so that the track radius is always positive.
Patent DE-2409473-A1 (DE)
Title: Applicn. and fixing of dyes and chemicals on textiles - using aq. baths contg. polar cpds. and exposure to air contg. halohydrocarbons
Inventor: SCHUIERER MANFRED
IPC: D06M13/08
Filed: 1974-02-28
Abstract: Application and fixing of dyes and chemicals on textiles by (A) treatment in an aq. bath contg. the dye or chemical and a polar solvent which swells the fibre, (B) exposure to air contg. halogenated hydrocarbon vapour consisting of methane, ethane or ethylene derivs. with 2 halogen atoms and with b.pt. below 85 degrees C. Ised esp. for dyeing and fixing polyacrylic, polyamide, wool and cellulose fibres. Rapid and complete fixing is achieved even with dyes which are fixed wtih difficulty or very slowly by usual methods. The fixing can be carried out at ambient temp. and without previous drying of the dyed fabric.
Patent DE-2411278-A1 (DE)
Title: Indicator for fuel consumption measuring instrument - gives relative petrol consumption and is mounted on instrument panel of car
Inventor: SCHIWECK HEINZ
IPC: G01F9/02
Filed: 1974-03-06
Abstract: The two measurement quantities of the speed of travel and the flow volume of petrol are supplied to the instrument by mechanical means and by electrical means respectively. The measured quantities influence the X or Y axis of a coordinate system. The transmission elements of the mechanical and electrical sections operate on the principle of a tachometer. An orifice plate connected to the petrol supply serves as a volume flow meter. The plus or minus side of the orifice plate is connected to the ends of a U-tube which is filled with mercury. The U-tube contains a calibrated, electric resistance coil. The instrument may be separately or may be integrated with an engine rev. counter.
Patent DE-2411649-A1 (DE)
Title: Holder for insertable tip boring tool - has tip mounted in holder adapted to clamp around boring spindle
Inventor: MORHARD FRANZ
IPC: B23B29/02
Filed: 1974-03-12
Abstract: The holder for a boring tool or for a tool for use in a milling machine is adapted to clamp around the boring or machine tool spindle. The holder basically comprises a first portion to which the tool is clamped and which has a half circular groove which matches the curvature of the spindle and which supports via longitudinal hinges two arcuate hinged portions one extending from either side of first portion around the back of the spindle and which are joined together and tensioned by a setscrew and eccentric clamping arrangement.
Patent DE-2412258-A1 (DE)
Title: Flowmeter for moving object typically powered cement - has a deflector plate mounted obliquely to a vertical stream of material
Inventor: BARTEN HANS DIPL ING
IPC: G01F1/30
Filed: 1974-03-14
Abstract: A component in a certain direction of a force exerted by the material on the plate is measured. The deflector plate is connected to a bridge hinged to two angle levers whose arms connected to the bridge are shorter than the others which are connected with and guided parallel to each other. The plate axis of rotation lies in the plane passing through the axes of rotation of the two angle levers. Projections on this plane of the distance between the goods highest point of impact and the plate axis of rotation is longer than that between the goods lowest point of impact and the above the axis. The length of one of the angle lever arms hinged to the bridge bridge is adjustable.
Patent DE-2417245-A1 (DE)
Title: Water filtration and aeration - by annular filter floating above aerator nozzle
Inventor: KAMMERL ANTON DR ING
IPC: C02F3/20
Filed: 1974-04-09
Abstract: Water in aquaria, fish ponds, swimming pools and reservoirs can be filtered and aerated by an annular filter which floats on the surface above an aerator. The air bubbles pass through the centre of the filter, and reach the filter edges by mutual repulsion. They burst and drop any impurities into the filter. The clean water leaves the filter through peripheral openings at the bottom of the filter. The filter can be produced cheaply and can be thrown away when clogged. This system combines aeration with filtering in a single plant. The filters require no pipe connections and are easily installed or removed.
Patent DE-2424677-A1 (DE)
Title: Passive distance determination - using rotating antenna at specified distance from sender
Inventor: PRICHODJKO ALEXANDER
IPC: G01S11/10
Filed: 1974-05-21
Abstract: The antenna rotates always in the same plane, in the same direction and at the constant speed at a specified distance from the sender. It transmits to the receiver a specified signal with a specified constant frequency. The receiver determines the duration of half or of a full period of the antenna rotation, and the time intervals between the maximum positive and negative Doppler frequency shifts. The distance is then determined from a specified formula, related to the distance to be determined, the distance of the antenna from the sender, the rotation speed of antenna, and the time interval between two sequential time points.
Patent DE-2433480-A1 (DE)
Title: Stepwise power control by repeated AC supply disconnection - involves connection and disconnection at voltage zero passage
Inventor: HECK ERICH
IPC: G05F1/66
Filed: 1974-07-12
Abstract: The repeated disconnection operation is controlled by a bistable multivibrator which is fitted with an electronic switch connected between the load and the supply. the two multivibrator inputs are connected to separate outputs of an electronic pulse counter which is used to count square-wave pulses. the square wave pulses are obtained by converting the cycles of the load supply voltage and converts the pulses into digital output signals. To control a given number of power control stages the multivibrator inputs can be connected by multipole switches to each of the counter outputs giving reliable automatic control.
Patent DE-2433870-A1 (DE)
Title: Oxyacetylene attachment for use with a burner mounting - has burner nozzle held in place on burner head by a clamping device
Inventor: ROEDER GEORG ING GRAD
IPC: F23D14/46
Filed: 1974-07-15
Abstract: An oxyacetylene burner, partic, a machine type burner, with a burner shaft to attach it to a burner mounting and a burner head with attachments for the working gases as well as a nozzle attached to the burner head has the burner nozzle (16) held in place on the burner head (14) by means of at least one clamping device (18). The clamping device consists of a block whose narrow sides (22) have slits (24) cut in them. A central hole (20) to accommodate the burner nozzle (16) is situated between the slits n24). Screw fastenings (30) are inserted into the slits (24) of the clamping device and are used to clamp the sections together.
Patent DE-2440176-A1 (DE)
Title: Weldable low alloy steel - for concrete reinforcing rods
Inventor: LETMARK AKE
IPC: C22C38/00
Filed: 1974-08-22
Abstract: The steel has a yield limit of at least 60 kp/mm2, good notch toughness at -20 degrees C and good weldability. Its compn. is 0.15-0.22% C, 0.10-0.60% Si, 0.90-1.60% Mn, 0.05-0.40% Cr, 0.05-0.40% Ni, 0.01-0.40% Cu, 0.06-0.12% V, 0.02-0.05% Nb. 0-0.10% acid soluble Al, 0.013-0.025% N, balance Fe and usual impurities, and a C equiv. following the relation C+mn/6 + (Cr+V)/5+ (Ni+Cu)/15, and depending on the dia. of the rolled bar across section lies pref. between 0.38-0.50. The alloying elements are chosen in amts. so that after the rod is cooled in air from the rolling temp., the structure of the steel is fine-grained ferrite and pearlite. Used for concrete reinforcing rods or bars with a dia. of up to about 20 mm.
Patent DE-2444349-A1 (DE)
Title: Purificn. of coke-oven gas with hydrogen sulphide removal - by scrubbing with alkali metal carbonate soln. regenerated with carbon dioxide
Inventor: HOELTER HEINZ
IPC: C10K1/10
Filed: 1974-09-17
Abstract: The purificn. of coke-oven gas is carried out by (a) cooling and removing tar from the gas; (b) removing NH3 by scrubbing with H2O, opt. with added H2SO4; (c) removing H2S by scrubbing with a circulating soln. contg. Na2CO3 or K2CO3; (d) treating the soln. from (c) with CO2 to remove the H2S; and (e) introducing NaOH or KOH soln. into the H2S-scrubbing circuit while withdrawing a corresp. amt. of the scrubbing liq.; and pref. also (f) mixing the withdrawn scrubbing liq. with the waste water from step (b) to displace the bound ammonia present therein. Practically complete (up to 99.9%) desulphurisation of the gas can be achieved together with removal of HCN and related impurities; the CO2 needed is cheap and readily available and the inclusion of step (f) removes harmful alkali metal sulphides from the waste water, leaving only (NH4)2SO4 (useful as a fertiliser) and harmless alkali metal salts.
Patent DE-2446445-A1 (DE)
Title: Resilient seal for door or coking or sintering furnace - allowing sealing of recesses at short intervals and of varying depths
Inventor: SUDO OSAMU
IPC: F24C15/02
Filed: 1974-09-28
Abstract: Resilient seal for furnace door, of which the dimensions are adaptable to the contours of the furnace door, comprises a heat-resistant elastomeric cover. pref. of silicone rubber material with a metal coating or film on its surface forming a closed tube of which the inner cavity is filled with a fluid medium. The latter may be at a pressure above atmospheric pressure, may be constantly replaced for the purpose of cooling, and may be supplied via appropriate connectors to a heat exchanger. The resilient seal is mounted on a support attached to a steel seal which prevents excessive heat of radiation from reaching the resilient seal.