baber/WOPTO huggingface dataset:
Patent DE-2143174-A1 (DE)
Title: Welding nozzle replaceable insulation - in shielded arc arc welding process
Inventor: KLASSEN RUDOLF
IPC: B23K9/29
Filed: 1971-08-28
Abstract: Welding nozzle for use in shielded arc welding has a threaded sleeve for securing the nozzle body to the welding torch. The threaded sleeve is screwed onto the torch and has a recess at its outer periphery in which a stop member holds the nozzle body that is pushed onto the threaded sleeve. There is an insulation member inside the nozzle body, and the threaded sleeve may be of a nonconductive material such as plastic.
Patent DE-2151949-A1 (DE)
Title: Gas densified moulding box - with value set into entry port
Inventor: WASIL KOWSKIJ LEW FEDOROWITSCH
IPC: B22C15/00
Filed: 1971-10-19
Abstract: Moulding box for forming casting moulds wherein the moulding material is densified by means of air pressure via a valve built into the entry opening of the box or by means of gas pressure waves. The valve comprises an inner space with a roof, encased by the valve walls and communicates with the moulding box through adjustable openings which can be closed by contact between mating sloping surfaces. The lower mating surface runs freely inside the inner space in the moulding chamber which the upper part is fixed into the entry opening with sealing ring which fit into grooves in the outer surface of the valve. Appts. provides improved densification of mould walls.
Patent DE-2161992-A1 (DE)
Title: Interior etching of glass hollow ware - by total immersion etching into circulated etchant
Inventor: SCHMIDT ENGELBERT
IPC: C03C15/00
Filed: 1971-12-14
Abstract: The plant comprises a large etchant tank with motorised stirrer, into which is hung from the top into the etchant a smaller flase-bottomed tank, in which are lowered by means of a frame acting also as holder the inverted workpiece vessels so that they are totally submerged round upwards pointing nozzles projecting into the smaller tank, through which etchant streams are pumped. The etching process does not generate any waves or spillage and yields very even etching.
Patent DE-2236498-A1 (DE)
Title: Electrostatic precipitator - with louvered precipitator plates
IPC: B03C3/45
Filed: 1972-07-25
Abstract: Parallel plate electrostatic precipitator is made up of a no. of identical modular electrode units in the form of louvered plates having reinforcing ribs and projecting vanes mounted so that the vanes of one plate are interleaved with the vanes of an oppositely charged plate and so that the plates are in parallel and insulated from one another. The projecting vanes form a no. of open air passages and electrostatic fields across the passages.
Patent DE-2241232-A1 (DE)
Title: Gypsum slurry freed from phosphoric acid - by adding potassium hydroxide or carbonate
Inventor: EIPELTAUER EDUARD PROF DIPL IN
IPC: C04B11/024
Filed: 1972-08-22
Abstract: Solid, or aqueous soln. of KOH or K2CO3 is added to the plastic gypsum slurry before firing to ppte. the free acid, reducing efflorescence in the fired gypsum.
Patent DE-2258540-A1 (DE)
Title: Ceramic binders contg. barium oxide - in addn. to silica, alumina and other metal oxides, used for grinding tools
Inventor: BUROW WADIM S
IPC: B24D3/16
Filed: 1972-11-29
Abstract: Ceramic binders for mfr. of grinding tools, e.g. of corundum diamond or borazone, contain 1-7 wt. % BaO, in addn. to SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO and B2O3, pref., by wt., 55-62% SiO2, 16-200.1-1% TiO2, 0.1-1BaO, 0.1-0.6% F and 5-8% K2O, Na2O, Li2O. BaO lowers binder refractoriness, increases liquid phase formation at lower temps., adhesion to abrasive grains and even distribution of binder between abrasive grains.
Patent DE-2303213-A1 (DE)
Title: Highly basic trivalent metal complex sulphates - for use as self-neutralising mineral tanning agents
Inventor: ERDMANN HANS DR
IPC: C07F5/06
Filed: 1973-01-24
Abstract: Water-soluble complex sulphates of trivalent Cr, Al and/or Zr with a basicity of =70% are prepd. by reacting the sulphates of trivalent Cr, Al and/or Zr with inorganic bases (pref. Na2CO3, NaHCO3, CA(OH)2, MgCO3, Mg dihydroxocarbonate and/or dolomite, esp. Ca(OH)2) and trialkanolamines (pref. triethanolamine) in aqs. soln., the amt. of inorganic bases used being sufficient to impart of basicity of =50% to the complex sulphate soln. The reaction with the inorganic bases and trialkanolamine can be carried out in any order.
Patent DE-2312282-A1 (DE)
Title: Four stage olefin oxide prepn. - from olefin and aromatic hydrocarbon giving decarboxylated acid as by prod
Inventor: EISENLOHR KARL HEINZ
IPC: C07C409/30
Filed: 1973-03-13
Abstract: The oxides are prepd. by (a) 1 pt. aromatic hydrocarbon (toluene) is oxidised at 400-700 pref. 500-600 degrees C over a catalyst of U, Mo, K oxides in ratio 6:1:0.16 with 0.5-2 pref. 1 pt. 0 to give aldheyde. (b) Aldehyde, opt. diluted, is oxidised in liq. phase at 10-40 pref. 20-30 degrees C with a gas contg. 0 and 0.2-0.5 pref. 0.3-0.4 vol.% O3 to give peracid. (c) Peracid is reacted with olefin in liq. phase at 10-50 pref. 20-40 degrees C and 760-900 pref. 800-850 torr to bive olefin oxide and carboxylic acid (benzoic). (d) Carboxylic acid is decarboxylated or opt. oxidatively decarboxylated (benzoic acid gives phenol). Overall selectivity of process is toluene to propylene oxide 64% to phenol 58%.
Patent DE-2317611-A1 (DE)
Title: Exchangeable filter assembly - for a sample stream withdrawn from a main liquid stream
Inventor: HRSKA KARL DR
IPC: B01D35/00
Filed: 1973-04-07
Abstract: Filter assembly for sample side stream of liquid to be sent to an analyser, comprises (a) a rotary part fitted into a block and provided with >=2 bores having exchangeable filters (b) further bores in the block and rotary part, so arranged that in the appropriate position of the latter a smaller part of the main liquid stream entering a bore in the block flows away as a sample stream after passing through a filter, while the main stream flows away laterally at the level of the filter (c) further bores in the block which gives acces to the filter not in the liquid stream for cleaning and exchange.
Patent DE-2332537-A1 (DE)
Title: Direction finding signal processor with storage and indication devices - uses cross-correlation of voltage components with perpendicular phase relation
Inventor: BLACKERT HANNO DIPL ING
IPC: G01S3/14
Filed: 1973-06-27
Abstract: A better signal-to-noise ratio can be achieved in systems for the processing, storage, transmission and display of direction finding angular signals supplied by multi-channel receivers, by the application of a cross-correlation. The centre voltage of the direction finding aerial system is split into two components with a phase at right angles to each other. Each of the n direction finding bearing voltages is cross-correlated with each of these components. Electronic counting of a time period enables simple digitalisation of 2n direction finding bearing voltages.
Patent DE-2334886-A1 (DE)
Title: Leak detector method of operation - has tested samples connected to the leak detector vacuum system or placed in a sample space
Inventor: BEECK UDO DIPL-PHYS
IPC: G01M3/20
Filed: 1973-07-09
Abstract: The sample test space is connected to the detector vacuum system. The samples or the sample test space are flooded after testing with a gas free from the test gas. The free from test-gas stream flowing during sample change out from the connection flange for samples, or from the sample space, is maintained. A vessel is provided, to which through valves are connected a vacuum pump, a leak detector and a cylinder with the gas free from the test gas. The vessel has in addition a connection piece for the samples. It is arranged as a test space for small samples. This space is separated from the vessel by a partition preventing turbulence. The leak detector is a mass spectroscope.
Patent DE-2334971-A1 (DE)
Title: Temperature and corrosion-resistant springs - consist of carbon fibre-reinforced carbon
Inventor: BOEDER HORST DIPL-CHEM DR RER
IPC: F16F1/36
Filed: 1973-07-10
Abstract: A mechanical spring e.g. a torsion bar spring, spiral spring, plate spring etc., consists carbon fibre-reinforced carbon. The springs may be made by suitable laying up the C fibres and coating them with a liquid carbonisable binder, e.g. a resin or pitch and then carbonising the binder at 800-2800 degrees C depending on the binder and the intended use of the spring. The strength of the composite material may be increased by repeating the procedure.
Patent DE-2339870-A1 (DE)
Title: Improvement of sinter electrodes for batteries - is by ultrasonic treatment of the pressed electrodes or of the material before or during pressing
Inventor: SAEUFFERER H DR RER NAT
IPC: H01M4/00
Filed: 1973-08-07
Abstract: The electro-chemical storage system with at least one pair of electrodes uses at least one sinter electrode which has been produced under the effect of ultrasonic radiation. The ultrasonics may be applied to the pressed electrode or to the sinter material or before/and/or during sintering of the sinter material. Due to the ultrasonic process the quality of the one-material or of the multi-material electrodes is improved with regard to mechanical strength, resistance to corrosion, with regard to electro-chemical activity and to electrical conductivity.
Patent DE-2340746-A1 (DE)
Title: Commutatorless D.C. motor with permanent magnet rotor - has semiconductor for control of its stator winding
Inventor: MUELLER ROLF DIPL-ING
IPC: H02K29/12
Filed: 1973-08-11
Abstract: The disadvantages of high operating temperatures are overcome by an additional stator winding which has a voltage induced by the rotor with a phase shift of 70 to 110 deg., pref. 90 deg. compared with the voltage in the normal stator windings. This voltage is fed to an integrator and its output is used for the control of the semiconductor for the stator winding current. The number of turns of the winding provided for the phase-shifted voltage is high and about the same as for the stator winding.
Patent DE-2342217-A1 (DE)
Title: High speed grinding disc - has a zone of increased strength up to two thirds ring width in part of disc adjacent to disc bore
Inventor: BOGUSCH ERICH DIPL-ING DR
IPC: B24D5/04
Filed: 1973-08-21
Abstract: Grinding disc for high speed grinding with a zone of increased strength in the part of the disc adjacent to the bore of up to 2/3 the ring width where in this zone are regions of different strength in the radial direction and at least one region has the strength and compsn. of the grinding layer. At least one region of increased strength has the same type of binding as the grinding layer and different filler matl., which may be resin impregnated as fibre reinforced.
Patent DE-2343773-A1 (DE)
Title: Hydrolyzed diels-alder adducts of ocimenol - as perfumes
Inventor: BLEDSOE JAMES ODELL
IPC: C11B9/00
Filed: 1973-08-28
Abstract: Aldehyde mixts. of formula: where R = H, R' and R" = H or CH3 (but both of R' and R" are not CH3), and Q = -CH2CH2C(OH) (CH3)2, are produced by reacting ocimenol with (meth)acrolein or crotonaldehyde and acid-hydrolysing the inter. formed.
Patent DE-2365554-A1 (DE)
Title: Satin white filler prodn. from silicate, aluminate and sulphate - by hydration of industrial cpds., for use in paper, paint and plastics
Inventor: BAUDOIN JAQUES
IPC: C09C1/40
Filed: 1973-11-12
Abstract: In the prodn. of a filler based on Ca trisulphoaluminate (I) (3CaO.Al2O3.3CaSO4.32H2O), a prod., contg. silicates (II) contg. Ca, aluminates (III) contg. Ca and CaSO4, is hydrated to give a mixt. of 80-90% ettringite, i.e. (I) and 20-10% tobermorite (IV) (xCaO.ySiO2.zH2O, in which 0.85 x/y 2 and 1 z/y 4). Pref. (II) is Portland Cement, (III) a refractory alumina cement and the CaSO4 is in the form of powdered gypsum. (II) can be hydrated first to a prim. hydrate and then mixed with (III) and CaSO4 in an amt. corresp. to the available (III) or the starting materials can be hydrated together. Used esp. in paper, paint and plastics mfr. The filler can be produced in all forms (dry powder, solns. or suspensions of almost any concn.) from various industrial cpds.
Patent DE-2405575-A1 (DE)
Title: Low-noise rotary sliding vane pump for liqs - has each vane bounding face asymmetrical w.r.t. an axially-parallel vane midline
Inventor: MELCHINGER WILHELM
IPC: F01C21/08
Filed: 1974-02-06
Abstract: Low-noise vane pump for liqs. has a rotor with parallel-walled radial slots for sliding vanes and a cam path which surrounds the rotor and with it encloses radially, sickle-shaped working space(s), and radially guides the vanes. Pressure acts on the ground of each rotor slot and the bounding face toward the slot ground of each corresp. vane. Each bounding face is asymmetrical w.r.t. an axially-parallel vane midline such that the liquid press. acting from the slot ground via the bounding face on the vane results in a drive disc, running vertical to the slot, on the vane. Pipe noise is eliminated.
Patent DE-2408562-A1 (DE)
Title: Measurement of closed system leaks - involves test gas fed at constant flow after initial filling with check if leakage exceeds feed rate
Inventor: ARNOLD KARL-HEINZ
IPC: G01M3/26
Filed: 1974-02-22
Abstract: A method for measurement of leakages in closed systems, especially in a low pressure gas system, involves the introduction of a test gas into the system; in which the system is first filled with the gas, after which additional gas is fed at rates corresponding to an upper and a lower limiting value and the variations in gas pressure recorded. If any leakage rate is less than the rate of additional feed the pressure will rise, and if the leakage is greater than the rate of feed it will fall; the limiting feed rates are chosen to correspond with limits of tolerance for the leakage in using the system.
Patent DE-2414479-A1 (DE)
Title: Plastic pet collar - based on vinyl resin, carbamate and plasticizer
Inventor: GRUBB LARRY M
IPC: A01K27/00
Filed: 1974-03-26
Abstract: A pet collar for the control of ticks and fleas consisting essentially of a solid vinyl resin, 0-(2-isopropoxyphenyl)-N-methylcarbamate, and plasticizer.
Patent DE-2422094-A1 (DE)
Title: Self locking nut for fastening - uses nut base periphery to apply clamping whilst relieving adjacent threaded bore
Inventor: SCHMID LEOPOLD F
IPC: F16B39/28
Filed: 1974-05-07
Abstract: The nut has a central threaded bore and driving flats on its outer surface. A conical relief is machined into the nut so that the clamping force is applied to the component by the periphery of the base of the nut. An annular counterbore separates the driving flats from the central threaded portion. The self locking properties are improved because of the greater radius of the point of contact of the base of nut on the component. Radial grooves are optionally provided in the base of the nut to improve the stress distribution in the nut. In one embodiment the nuts are precision cast by pressure diecasting in light alloy. Nuts are especially useful for motor cars and aircraft.
Patent DE-2425414-A1 (DE)
Title: Aromatic thiocarboxylic acid amides prepn - from aromatic hydrocarbons and thiocyanic acid or thiocyanates in hydrofluoric acid, by single-stage process
Inventor: LUEBBERS HENNING DR
IPC: C07C/
Filed: 1974-05-25
Abstract: Prepn. of aromatic thio carboxylic acid amides (I) of formula Ar-C(=S)NH2 (where Ar is an aromatic hydrocarbon gp., or di-phenylene oxide or diphenylene sulphide gp. pref. substd. 1-3 times by alkyl, cycloalkyl, alkylene, alkoxy or alkylthio gps. with 1-18C esp. 1-4C, OH, phenyl, phenyloxy or phenylthio gps. which may be the same or different, the alkyl, cycloalkyl, alkylene, alkoxy or alkylthio gps. themselves being opt. substd. by aliphatic, cycloaliphatic or aromatic gps. and the alkylene gps. opt. being members of multi-, esp. double aromatic ring systems; the total of non-aromatically linked C atoms is not >18 and that a geomatically linked C atoms is not >20) comprises reacting an aromatic hydrocarbon of formula Ar-H with thiocyanic acid or a salt thereof in at least 90% HF. Cpds. (I) are obtained in a single stage process from easily available starting materials (I) are useful in the prepn. of nitriles, amides, carboxylic acids, heterocycles, plant protection agents and pharmaceuticals.
Patent DE-2437800-A1 (DE)
Title: Metal tunnel lining segment - pads incorporated inside flanges form flat seatings for telescopic clinders or wedge blocks
Inventor: TIMM UWE DIPL ING
IPC: E21D11/14
Filed: 1974-08-06
Abstract: Tunnel lining segments for the walls of a tunnel which have been cut by a tunnelling shield, are made of steel or cast iron designed for insertion of removable telescopic cylinders. In one design, the segment is shaped in cross section is shaped as a double S, i.e., a C shaped portion faces unwards between two C shaped portions facing outwards, and the outer facing portions have flat pads (3) inside, forming parallel seating surfaces for the cylinders (2). In an alternative design, the segment is of C section with similar pads inside for the cylinders. In alternative cylinder designs, the ends of the cylinders carry pivot mounted heads, and the cylinders may be hydraulically operated or operated by screw action. A further design of the segment uses tapered blocks instead of cylinders.
Patent DE-2448335-A1 (DE)
Title: Drawer guide with two guide rail system and rollers - has extra guide channels sufficiently deep for securing standard shape rollers
Inventor: GREEB MARTIN
IPC: A47B88/493
Filed: 1974-10-10
Abstract: The drawer guide comprises guide rails (8) which are fixed to the wall of the supporting furniture carcase (10) and guide rails (7) which are mounted on the side of the drawer wherein the opposite side walls of the U-shaped channel formed by the furniture guide rails (8) and at least one side of the engaging arm (25) of the drawer rails (7) are provided with guide channels or grooves (19, 20, 27) which engage laterally round the rollers (40 to 45) to provide a secure hold for the latter. The rollers can be of a standard, preferably cylindrical shape with no special safety notches or the like. The rails are preferably made of sheet metal sections so that the guide channels (19, 20, 27) are easily obtained to the necessary depth by turning the edges of the sheet metal blank.
Patent DE-2449156-A1 (DE)
Title: Tooth arrangement for parting saw - has hard cutting elements applied to inner edge by gas discharge
Inventor: WINTER ERNST MICHAEL DIPL KFM
IPC: B24D5/12
Filed: 1974-10-16
Abstract: The disc-shaped holder (1) of the saw is provided with a central hole which on its cylindrical main cutting surface and in the region of the two adjoining cutting surfaces is provided with cutting elements. The inner hole saw comprises evaporated cutting elements (3, 4) applied through cathodic gas discharge and by means of a pattern on the holder. The cutting elements are at an even distance from each other, and extend at an equal height of 0.5 to 10 pm above the basic body. The cutting elements have a geometrically uniform contour, and can be of diamonds and/or cubic crystalline boric nitride, or of wear-resistant carbides.
Patent DE-2459456-A1 (DE)
Title: Exposure control during copying of colour photographs - density of original scanned by points in three primary colours
Inventor: GROSSMANN WALTER DR
IPC: G03B27/73
Filed: 1974-12-16
Abstract: Area densities in the three primary colours are derived and evaluated for exposure determination. Points which satisfy at least two out of three specified conditions are selected from the scanned points. Those points which do not satisfy these conditions are not taken into consideration for area density determination. The copying installation has basically two stations. The first station scans the film i.e. negative roll for copying. In the second station a copy is prepared on a strip of photo-sensitive paper, normally the colour paper to be used. The scanning station comprises a light source, optics, a reflecting wheel driven by a synchronous motor, a condenser, a beam divider, and three colour sensitive photo receivers.
Patent DE-2461768-A1 (DE)
Title: Equipment for rapid engine oil change - has separate tanks for pumped used, fresh and flushing oil supplies
Inventor: BONHOFF JULIUS CAESAR
IPC: F01M11/04
Filed: 1974-12-28
Abstract: The rapid oil change equipment for he vehicle comprises three tanks; one, for used oil (3), one for fresh oil (7) and one for a flushing oil (5). The old oil is drawn out of the engine sump (19) by a connecting line through the dipstick hole, while compressed air is blown in through the filler pipe (16). In order to ensure complete removal of the used oil a warm flushing oil is pumped in through the dipstick hole and then pumped out again the same way. Fresh oil is then pumped into the sump. The flushing oil is compatible with the fresh oil so that any residues are assimilated. The equipment provides a rapid clean oil change even in cold weather.
Patent DE-2502774-A1 (DE)
Title: Invisible hinge mounting system for doors - has additional cam and fork to inhibit door movement path and support door weight in closed position
Inventor: RUCK REINHOLD
IPC: E05D3/06
Filed: 1975-01-24
Abstract: A hinge for invisible mounting on doors or flaps has two link sections on the wall and two link sections on the door section of the hinge allowing door opening to 160 deg. extent, has a cam (10) attached near the wall mounting of linkage (1) and a support fork (2a) attached to linkage (2) on the side facing linkage (1). These extra sections allow contact and engagement between linkages (1 + 2) in the closed portion. Cam (1a) and fork (2a) are designed so that they form an inhibiting device (wedge 5) which supports the door weight in the closed position and restricts the path of the door in the opening direction.
Patent DE-2502876-A1 (DE)
Title: Fuel suction unit for carburettor engines - uses slots in the suction channel, to determine combustion air speed
Inventor: AUGUST PAUL DIPL ING DR
IPC: F02M23/12
Filed: 1975-01-24
Abstract: The fuel suction unit is for carburettor engines, resp. engines with central fuel injection. It supplies combustion air downstream of the throttle flap of the carburettor, esp. the injection unit, using two slots, facing each other in the suction channels. The slots are dimensioned, so that due to the low pressure in the suction system of the engine, the combustion air escapes fromt he slot at almost the speed of the sound, in the idling-and/or partly loaded/transmission condition of the engine. The direction of air flow is at right angles, or almost at right angles, to the direction of suction. The slot for the partly loaded/transmission engine condition has an associated throttle flap (5), the opening of which is dependent upon the opening of the carburettor throttle flap.
Patent DE-2503064-A1 (DE)
Title: High speed rotary component bearing - has two or more bearings in series between rotary and stationary components
Inventor: BONGARD RUDOLF
IPC: F16C17/18
Filed: 1975-01-25
Abstract: Between the rotary (1) and the stationary (2) component there are two or more ball or plain bearings, so that the speed diffence is divided evenly between the bearings. These can be arranged between the two components, or there can be a shaft between the latter, running in a bearing at each end. The stationary component can be fork-shaped the rotary component being accommodated between the fork prongs. The shaft is carried in bearings in both. The design is particularly for use in high-speed wire - and thread-coiling machines.