baber/WOPTO huggingface dataset:
Patent DE-2124023-A1 (DE)
Title: Vinca rosea alkaloids - vinblastine, vinleurosine and vincristine selective isolation
IPC: C07D519/04
Filed: 1971-05-14
Abstract: Vinblastine (I), vinleurosine (II) and vincristine (III) or their salts, known cytostatic agents, are recovered in improved yields from Vinca rosea L by (a) extracting with neutral aqs. methanol, (b) dissolving the alkaloid mixture obtained in a known manner from the extract in ethanol contg. is not >10% acid and crystallising (I)-(III) from the ethanol soln. in the form of their acid addition salts; (c) chromatographing the mixture of acid addition salts, opt. after conversion into the free bases, on Al2O3 partially deactivated with water and fractionally eluting, and (d) recovering (I)-(III) or their acid addition salts from the eluate fractions and purifying them if required. The process involves less phase interchanges than prior methods and the chromatographic separation is less complicated.
Patent DE-2139599-A1 (DE)
Title: Insulation for electric cables - esp high-tension cables based on polyolefin and contng tert amine
Inventor: ARENDT ILSE DIPL ING
IPC: H01B7/02
Filed: 1971-08-03
Abstract: The insulation on an electric cable, esp. a high-tension cable, consists of a polyolefin, esp. an ethylene (co)polymer, contg. a small amt. of an aliphatic, aromatic or mixed aliphatic-aromatic satd. tert. mono-, di- or poly-amine in which the substnts. are solely hydrocarbon gps.
Patent DE-2154336-A1 (DE)
Title: Dry powder fire extinguisher - with polyamide or pvc sealing lips
Inventor: LEUTHNER GEORG
IPC: A62C13/00
Filed: 1971-11-02
Abstract: The actuating ram seals are plastic lip seals which form part of a single injection moulded body with the part of the extinguisher carrying them. Pref. the handle and/or the pressure gas cartridge holder are made of polyamide or PVC together with the adjacent moulded on lip seals.
Patent DE-2155879-A1 (DE)
Title: Continuously winding pipes - with advancing mechanism
Inventor: BRAUN ALFONS DR ING DIPL ING
IPC: B29C53/82
Filed: 1971-11-10
Abstract: An appts. for making continuously wire-wound pipes comprises a cantileveral mandrel or sleeve which holds one end of the pipe, and has moving support surfaces to advance teh pipe progressively as it is wound. These support surfaces comprise a number of radially and axially displaceable segments divided into two sets. One set advances the pipe while the other set moves radially inwards and does a rapid return motion; then the sets exchange their functions, thus providing a continuous forward motion.
Patent DE-2205270-A1 (DE)
Title: Oil-modified isophthalic alkyds - contg aromatic or cycloaliphatic glycols, with reduced tendency to gelation
Inventor: BLAGA AUREL
IPC: C08G63/668
Filed: 1972-02-04
Abstract: Isophthalic acid alkyds modified with 60% of oil are prepd. from a monocarboxylic component and a polyol; the synthesis is carried out completely by alcoholysis or acidolysis, and polyesterification is at 200-260 degrees C in the melt or in soln. 1-25% of a glycol contg. aromatic or cycloaliphatic rings is included to reduce the functionality of the resin. There is less tendency to gelation, without deterioration in the props. of the alkyd.
Patent DE-2214990-A1 (DE)
Title: Transport and storage tank - reusable without cleaning by use of plastic liner
IPC: B65D88/62
Filed: 1972-03-28
Abstract: The tank, for liquids or loose goods, comprises an outer rigid container inside of which is a sack-shaped film which fills out the whole container when charged, the container inlets being arranged such that either the actual tank or the liner can be filled. Pref. the outer container is of metal or plastic (e.g. polyethylene, PVC etc.), of fibre-reinforced plastic, rubber or flexible rubber or PVC coated fabric. The liner is e.g. of PVC polyethylene or polyamide film opt. reinforced with natural or synthetic fibres.
Patent DE-2216795-A1 (DE)
Title: Take up hopper - for dough portioner
Inventor: HUEBNER KARL
IPC: A21C11/16
Filed: 1972-03-16
Abstract: By rotation of the roller, which can be fitted like a spindle, with varied profiles, the dough filled into the hopper is pressed out though the openings. Specif. twin rollers can be fitted in the hopper.
Patent DE-2229294-A1 (DE)
Title: Organosilicon cpds isolation - by extn with solvent immiscible with reaction mixt,for textile/glass sizes
Inventor: KORISTEK STANISLAV
IPC: C07F7/20
Filed: 1972-06-15
Abstract: Organo-Si cpds of gen. formula: R-CH2COO(CH2)nSi-R'a(OR")b-a (in which R is H, halogen, alkyl, alkenyl, aryl, aralkyl (opt. substd) and R',R" are 1-4C alkyl, n = 1-4, a = 0-3, b = 0-3), obtd. by condensing the corresp. halogen derivs. contg. Si with Na salts of organic carboxylic acids, are isolated by treating the cooled reaction mixt. with a solvent which is immiscible with the reaction mixt. and isolating the prod. by repeated extn. Extn. is relatively quick and simple and eliminates polymers resulting from side reactions.
Patent DE-2235144-A1 (DE)
Title: Chopped meat prodn machine - with automatic injection of herbs spices etc
Inventor: LOOSE HEINZ
IPC: A22C7/00
Filed: 1972-07-18
Abstract: An inner core of stuffing, forcemeat or the like is fed to a central injector pipe within a tubular, closed top, extrusion mould to which an outer meat shell is fed via side pipes, to an upper enlarged mixing chamber. The stuffed meat roll is extruded past a sliding gate knife, with biconcave cutting edges, controlled by electromagnets in response to signals from a photo electric monitor so that controlled portions are produced. These pass into a deep fryer to seal the outer meat shell and then to a dry roaster oven.
Patent DE-2248066-A1 (DE)
Title: Continuous casting mould vibration mounting - comprises two horizontal leaf spring packs
Inventor: BROCK KLAUS DIPL-ING
IPC: B22D11/053
Filed: 1972-09-30
Abstract: The mould which is vibrateable in the casting direction is held by two parallel horizontal plane packs of leaf springs which are attached by means of horizontal axis rotatably adjustable holders. The leaf spring packs are pref. overhanging the mould and fixed to their free ends. The system allows the easy adjustability of the mould position in relation to the pulling-out train independently from their weight.
Patent DE-2251211-A1 (DE)
Title: Sewage sludge drier-processor - using partial incineration to provide drying heat for bulk
Inventor: BASTGEN WENDEL DIPL ING
IPC: F23G7/00
Filed: 1972-10-19
Abstract: The wet sludge is first drained on a perforated conveyor belt press to form a cake with max. water content is approx. 80%. This cake is fed into the inner channel of duplex, coaxial pipe, rotary drier in which pulverizing chain fluids break it up, during initial drying stage, into small granules which are dried in the return pass along the drier. From the drier it is discharged, part being bypassed into a vibratory grate, fluidized bed incinerator whose combustion gases are fed through the drying drum from the same end as the cake feed.
Patent DE-2264394-A1 (DE)
Title: Isomaltite - by hydrogenation of isomaltose
Inventor: SCHIWECK HUBERT DR
IPC: A23L27/30
Filed: 1972-04-12
Abstract: Title cpd. (I), useful as a low calorie sweetening agent, a medicament for chromic constipation and liver disorders and a diagnostic agent for determining kidney clearance, is prepd. by aerobic fermentation of sucrose to give isomaltose (II) which is subjected to catalytic hydrogenation in one stage. Thus sucrose is fermented aerobically with Protaminobacter rubrum to give (II) with some fructose and glucose, the latter are removed by fermentation with Saccharomyces cervisiae, then (II) is hydrogenated with Raney Ni to give (I).
Patent DE-2300278-A1 (DE)
Title: Bag-moulding hollow fibre-reinforced plastic articles - loading mould with dry body and preforming while dry with end cap before injecting resin
Inventor: WILTSCHIRE ARTHUR J
IPC: B29C53/60
Filed: 1973-01-04
Abstract: A fibrous preform body is loaded into the hollow mould. A preform cap with central hole is fitted in at the top end; the bag is inserted with its inlet fitting through the hole in the end cap. Pressure liquid is fed in to mould the fibrous material dry. This forces locating elements to engage in a corepiece which holds the bag inlet. Resin is then injected into the fibrous mass from the bottom. The mould is heated to cure and then opened.
Patent DE-2300614-A1 (DE)
Title: Optically active antipodes of substd aminophenylalkylamino - ethanols - from racemic mixts - selective activity on beta receptors
Inventor: KECK JOHANNES DIPL CHEM DR
Filed: 1973-01-08
Abstract: The D- or L-antipodes of cpds. of formula (I): hal = Cl or Br; R1 = H, Cl or Br; R = opt. branched 2-5C alkyl or 3-6C cycloalkyl. Pharmaceutically-acceptable acid-addition salts of the antipodes are included. The antipodes of (I) have selective activity on adrenergic beta-receptors. The D (+)-cpds. have selective blocking activity on the beta1-receptors; the L(-) cpds. have mimetic activity on the beta2-receptors. The selective blocking of beta1-receptors of D(+)-cpds. removes the risk of asthma attacks as side-effects. The beta1-blocking activity was tested as antagonism to N-isopropylnoradrenaline-induced tachycardia in cats. The beta2-mimetic activity was tested as antagonism to acetylcholine-induced bronchospasms in guinea-pigs. Acute toxicity (i.v.) in mice of the D(+)-form is 49.5 mg./kg; of the L(-)-form 42.5 mg/kg.
Patent DE-2333540-A1 (DE)
Title: Clarinet with improved tonal quality - diameter of bore changed in steps
Inventor: WERSCHNIK ALOIS
IPC: G10D7/06
Filed: 1973-07-02
Abstract: A clarinet has a bore with a series of sections of different stepped diameters in which the diameter of each wider section has a considerable effect on the duodecimals associated with the lower sections. The pure tonal quality and the modulation capability and tone quality are improved, and the duodecimals corrected by the expansion of the parts of the bore over the holes of the duodecimal sections.
Patent DE-2338886-A1 (DE)
Title: Exhaust gas cooling pipe - has uniformly corrugated metal sheet in interspace between like cylindrical or oval bodies
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/05
Filed: 1973-08-01
Abstract: Exhaust gas cooling pipe is as in 2329824; the common wall is of regularly corrugated sheet metal, and is fitted in the interspace between 2 like cylindrical or oval sheet metal bodies, such that it is alternately fast to the outer wall of the inner body and the inner wall of the outer body. Preferably, two uniformly-corrugated metal sheets are fitted in the annular space between the 2 like-shaped bodies of sheet metal, such that each metal sheet alternately always abuts fast to only the same wall part of the annular space and to the other corrugated sheet, so that there is formed a bundle of independent gas guiding channels, from walls of the corrugated sheets; these channels have after-burnt exhaust gas flowing through them and are in heat exchange with different air streams.
Patent DE-2340200-A1 (DE)
Title: Arc quenching in A.C. cct breaker by arc rotation and cooling - uses magnetic field in closed path with subsequent path rotation about specified axis
Inventor: GEBEL RUDOLF DIPL-ING
IPC: H01H9/44
Filed: 1973-08-08
Abstract: The light arc quenching is attained by a combination providing rotation of the light arc, with spatially separated quenching attained by wall cooling, as well as by automatic transition of the light arc from rotation to the wall cooling, as in 2224082. The light arc is rotated by a magnetic blast field in a closed circulation path, followed by rotation over a closed circulation path for quenching. The circulation paths whose axes are at right angles, intersect orthogonally so that the light arc is transferred at the intersection point by means of a magnetic blast field, phase shifted relative to the light arc current from the first circulation path to that for quenching.
Patent DE-2347085-A1 (DE)
Title: Axially spaced pressed soil cultivator disc harrow - has a horizontal axle with fixed toothed discs attached
Inventor: POEPPE FRIEDHELM
IPC: A01B29/04
Filed: 1973-09-19
Abstract: The axle, which is approximately horizontal, has a number of discs placed axially around it, at roughly equal distance from one another. The outer circumference of the discs has teeth bent in alternate directions. The base of each tooth is bent at a particular angle to the axle. The ends of the teeth are bent in a direction opposite to the base-bend, and extend beyond the first bend. The angle enclosed by two ends of teeth in opposite directions is less than a hundred and eighty degrees. The teeth may thus be formed by a press operation on a flat disc, with lightening apertures about the centre formed simultaneously.
Patent DE-2352474-A1 (DE)
Title: Soil-improving agents prodn from sewage sludge and refuse - by press moulding, drying and comminuting
IPC: C05F7/00
Filed: 1973-10-19
Abstract: Storage-stable, odourless, biologically active soil-improving agents are produced by (a) press-moulding a mixt of partially dewatered sewage sludge (pref. with a water content of 70%) and comminuted refuse (esp. from a disintegrator) to reduce the vol. of the mass to ca. 1/3 without loss of water, (b) drying the resulting briquettes by storing in air for 4 (pref. ca. 3) weeks until the C:N ratio is =20, and (c) comminuting the briquettes and screening the product to give a particle size of 6mm. The product (a high-quality compost giving extremely good root growth) can be used directly without the prolonged rotting procedures associated with prior art processes.
Patent DE-2363409-A1 (DE)
Title: Automatic star-delta starting switch for motor windings - has only one other contactor apart from supply contactor and timing relay
Inventor: TESCH KLAUS
IPC: H02P1/32
Filed: 1973-12-20
Abstract: The automatic star-delta switch for motor windings switching during starting has a timing relay with contacts switching over from star to delta operation such that, apart from the supply contactor, only one other contactor is needed. The additional contactor has its main contacts switching from star starting to delta running during the break caused by the opened supply contactor without current application. The automatic switch meets all present day requirements for star-delta starting, such as high switching speed to prevent short circuiting, but requires fewer and less expensive components than existing switching circuits.
Patent DE-2400663-A1 (DE)
Title: Low-extract nylon-6 fibre mfr - using vertical suction airstream between squeeze rollers and drying unit
Inventor: EL SHAFIE DARWISH AHMED B E DI
IPC: D01D10/06
Filed: 1974-01-08
Abstract: Low extract nylon-6 staple fibres, for use in carpetings, are prepd. by laying the fibre strands in serpentine layers on a carrier to pass through a washing fluid, to be squeezed, and passing them through a vertical air suction stream to remove any residual fluid, the same drying system being also used after the brightening phase. The process reduces drying costs by about one-third, in comparison with conventional squeeze drying methods.
Patent DE-2403900-A1 (DE)
Title: Pre-sintering powders for electro-ceramic components - by spraying aq. suspension into high temp. reactor
Inventor: GIESEKE WALTER DR RER NAT
IPC: C04B35/626
Filed: 1974-01-28
Abstract: The thermal pre-treatment of ceramic powders, which are subsequently formed into parts and sintered, comprises spraying a suspension contg. >=1 metal oxide, metal carbonate or metal hydroxide into a gaseous atmos. which has been heated to the reaction temp. The gaseous atmos. may be oxidising, with an adjustable degree of oxidn., or it may be reducing with an adjustable degree of redn.; alternatively, an inert gas atmos. may be used. The process is suitable for the prepn. of mixed powders used to make eg ferrite cores and/or piezoelectric filters used in the electronics industry. Used for the prepn. of a pre-sintered, homogeneous mixt. of metal oxides contg. eg. Fe2O3, Mn2O3, NiO, ZnO, and/or carbonates, eg. for ferrite cores. The spray drying plus reaction process eliminates or drastically reduces the fine milling operation normally employed after pre-sintering, thus providing savings in cost and reduces the pick-up of impurities.
Patent DE-2407060-A1 (DE)
Title: Chipboard material mixture control - has an equalising screw feed unit between mixer and measurement control scale
Inventor: SCHMITT HEINZ
IPC: B27N1/02
Filed: 1974-02-14
Abstract: The chips, bonding agent and other additives used in the mfr. of pressed chipboard and similar sheets, are delivered to a measurement scale, using an equalising screw feed between the mixer and the scale, operating at a coupled speed with a pump unit so that the intermittent action of the scale is controlled by the speed of the pump and feed actions. The system ensures that the components are delivered to the press in the required ratio so that the adhesion within the material is constant and there is a good surface appearance to the finished prod.
Patent DE-2412476-A1 (DE)
Title: Timing switch with electric clockwork - has minutes and hours setting discs combined with drive and current transmission elements
Inventor: SCHLENKER WALTER
IPC: G04C23/18
Filed: 1974-03-15
Abstract: The timing switch is intended for programmable household appliances and has electric clockwork. The switching on and/or off switching instances can be separately adjusted by setting discs with digital indication. One disc is used for setting the hours, while another one for setting the minutes. Each such disc pair closes a circuit via slip rings with associated contact strips. Each such pair forms with associated contact strips. Each such pair forms with all adjusting and drive elements and contacts a switching unit, functioning as an independent presettable time switch. At least two such switching units are arranged axially adjacent and have a common drive. Each switching unit actuates a current circuit, on attaining of the preset switching time, which affects a heavy load current circuit breaker.
Patent DE-2423877-A1 (DE)
Title: Coloured coating prodn on stainless steels - using aq. soln. contg. sulphuric acid and one or more chromates
Inventor: BUSER WILLY
IPC: C23C22/24
Filed: 1974-05-16
Abstract: The chromates are alkali (ne earth) metal or ammonium chromate, pref. Na or K chromate added in amt. 30-800 (60-400) g/l or ammonium chromate added in amt. 30-700 (240-550) g/l and soln. is used at 50-120/130 degrees C. A whole range of colours can be produced on Cr, Cr-Ni or Cr-Ni-Mo stainless steels without post-treatments, etching of the steel or loss of coating adhesion.
Patent DE-2436064-A1 (DE)
Title: Mine gallery roof support with actuator cylinder - roof support wider than sledge saddles sledge when lowered to floor
IPC: E21D23/00
Filed: 1974-07-26
Abstract: The hydraulically operated mine roof support with a sledge (1) resting on the floor, secured to a mine conveyor (5) and with the roof support member (8) raised and lowered to tilt so as to match the slope of the roof, has a single actuator cylinder (2) between them, with pivot hinges (7) between roof support and the sledge, so that the roof support can be lowered completely to the ground so that the horizontal portion rests on its side flanges (9) to straddle the sledge underneath, the roof member being approximately two to three times the width of the sledge. The cross members of the roof support are sufficiently shallow to leave a clearance underneath in the lowered position.
Patent DE-2437636-A1 (DE)
Title: Nematic liquid crystal indicator cell - has soda glass electrodes coated with silica to reduce cost and improve stability
Inventor: NAGATA MITSUO
IPC: G09F9/35
Filed: 1974-08-05
Abstract: The molecules of the nematic liq. crystals are aligned between two electrodes, and an arrangement is included so that an electric field can be generated perpendicular to both electrodes; polarising filters are also provided. The novelty is that at least the surfaces of the transparent or semi-transparent electrodes in contact with the liq. crystal layer contain a max. of 7% alkali-metal oxide; this can be achieved by the vapour deposition of SiO or SiO2 on the electrodes, or by the immersion of a soda-glass plate in fluorosilicis acid supersatd. with SiO2. The stability of the rotational orientation of the liq. crystal layer is improved.
Patent DE-2438239-A1 (DE)
Title: Cutting tool with modular teeth - has narrow teeth relatively offset across width to reduce power consumption
Inventor: BILLUPS JAMES OTIS
IPC: B23D43/02
Filed: 1974-08-08
Abstract: The overall width of the module (15) is equal to the width (W) of the cutting edges of the conventional cutting tool for given feed per cutting tool. The cutting edges of the module are such that two cutting edges of the multiple module are arranged neither parallel nor at right angles to the direction of the relative movement of the workpiece (14). The width of each cutting edge is reduced to a fraction of its total width and the feed per tooth is increased. This is equal to the specified number of cutting edges so that the cross section area of a chip cut (14") has the same width as the total width of the cutting edges.
Patent DE-2438671-A1 (DE)
Title: Rotating cutter for circular silos - has drive element to produce tangential and radial component for the support
Inventor: SCHAUMEIER ERWIN
IPC: A01F25/20
Filed: 1974-08-12
Abstract: The rotating cutter is for silage removal from the top in a circular silo. It has a frame, carrying a continuous cutter chain. The frame may be rotated about the silo axis via a rotating drive element, which is positioned near the end of the frame facing the internal silo wall. A support unit engaging on that wall maintains the frame (6) in a horizontal position. The drive element (9) is constructed and positioned, so that the drive power it produces, has a component, acting tangentially to the silo wall, and a radial component, to press the support against the internal silo wall. When projected onto a horizontal plane, the axis of the drive encloses an adjustable angle with the frame axis of 15-50 deg., pref. 25-40 deg.
Patent DE-2439981-A1 (DE)
Title: I.C. engine starter motor pinion drive - has free wheel keeping pinion in mesh with flywheel when respective speeds are unequal
Inventor: REICHARDT WOLFGANG DIPL ING
IPC: F02N11/08
Filed: 1974-08-21
Abstract: The starter pinion is fixed to a sleeve (5) able to move axially along the starter motor drive shaft (2) and turn with it in the usual way. The pinion has a flange (7) which acts as the inner race for a free wheel (8) whose ratchet (38) is moved into the locking position by a solenoid (42) when the starter switch is closed. The starter relay is actuated at the same time and the pinion moves forwards along the shaft by virtue of its pressure spring (32) and the spiral section on the drive shaft (5) until it reaches the stop (20) and engages with the fly wheel ring (22). The free wheel ratchet (38) drops out of mesh with the teeth (29) when the pinion sleeve moves forwards to slide inside a groove (30) between the free wheel and the brake disc (37).
Patent DE-2442256-A1 (DE)
Title: Anaesthetising tooth nerves by applying positive potential - with current stabilising cct. for providing reversible pulses
Inventor: HOERAUF GEB SCHOENBERGER SEBAS
IPC: A61N1/34
Filed: 1974-09-04
Abstract: Anaesthetising apparatus for tooth nerves comprises only a current stabilising circuit in which reduction of the negative pulse is carried out by a constant resistor (8) which is connected to the output of a current-measuring amplifier (3) consisting of capacitor and voltage-measuring amplifier and to the output of a monostable flip-flop (4). Pref. the resistor is connected to the input of the output electrode for the cathode and to the output of an electronic switch.