baber/WOPTO huggingface dataset:
Patent DE-2042609-A1 (DE)
Title: Silver colour bleach material - contg nitro-gelatin deriv to reduce colour bleaching
IPC: G03C7/28
Filed: 1970-08-27
Abstract: At most weakly coloured aromatic or heterocyclic nitro-substd. gelatin deriv. of formula: (NO2)n-A-(X)m-1-gelatin (in which A is aromatic or heterocyclic gp. with one or two 5- or 6-membered rings; X is -CO-, SO-2-, -CH2- or -NHCO-; m is 1 or 2; n is 1, 2 or 3 but n is 3 only if m is 1) is used in at least one coat of photographic material for Ag colour bleach process contng. azo dyestuff bleached by Ag in at least one coat. Cpds. have excellent compatibility with gelatin and can also be used as protective colloid instead of gelatin. They prevent redn. of dyestuff, acting as oxidants for the reduced colour bleach catalyst. Addn.
Patent DE-2118121-A1 (DE)
Title: Sensitising dye for electrophotographic product
IPC: G03G5/06
Filed: 1971-04-14
Abstract: Electrophotographic product comprising an organic photoconductor in a binder which is sensitised by 4-styryl-benzothiopyrylium salt of formula (where R1 is H, alkyl; R2 is H, alkyl, phenyl, halogen or nitro; R3 is H, alkyl or alkoxy, R4 is H, alkyl, phenyl opt. substd. by alkyl, alkoxy, alkylenedioxy or chloro, and styryl; R6 is H, phenyl; Q is phenyl opt. substd. by dialkylamino, alkoxy, alkyl, alkylenedioxy or chloride, 4-diphenyl, napththyl, opt. substd. by alkoxy; X is anion). Improved sensitisation of organic photoconductors results.
Patent DE-2123891-A1 (DE)
Title: Stopping power-driven sewing machine - in preset needle position
IPC: D05B69/22
Filed: 1971-05-14
Abstract: Device for stopping electrically driven sewing machine in pre-set needle position includes an intermediate shaft which is drivingly interconnected with the sewing machine main drice shaft on the one hand and with a brake assembly on the other hand under the control of an electric circuit including elements which produce signals inducing the rotation of the brake assembly.
Patent DE-2127458-A1 (DE)
Title: Tiltable filter centrifuge - in which acceleration on tilting distributes solids over wall sieve outlets
IPC: B04B3/00
Filed: 1971-06-03
Abstract: During rotation the centrifuge drum, which is fitted with a sieve casing and is tapered is subjected to a wobble frequency which tilts it, the tilt axis cutting the axis of rotation. If a sufficiently high wobble frequency is applied the acceleration is high enough for the material to be carried to the outlet points on the walls of the drum independently of the angle of tilt of the drum. The acceleration applied to the drum is pref. 10-20 g. Wear on the inner surfaces of the drum is reduced and the capacity of the centrifuge is increased.
Patent DE-2151193-A1 (DE)
Title: Constant ratio continuous mixer - for powder/granules with liquid esp ammonium nitrate with fuel oil
Inventor: KANACHER HERBERT
IPC: G05D11/13
Filed: 1971-10-14
Abstract: Mixed grain size powder is fed by a worm into an equalisation chamber above a closed cell paddle wheel dispenser below which is a pneumatically operated mixing chamber into which the oil is pumped. The speed ratio of the dispenser wheel and pump is constant due to gearing between them, bolt being drive by a common variable speed drive from the worm shaft, but independent of the speed of that shaft, the variable speed gear being regulated esp. by a level gauge in the equiliser chamber. Metering counters are fitted to the pump and to the paddle wheel solid material dispenser. Esp. for producing plasticised explosive for shot firing, a homogeneous mixt. is produced.
Patent DE-2152020-A1 (DE)
Title: Synthetic stone blocks with coloured facing - applied prior to their
Inventor: FEHST HANS
IPC: C04B41/45
Filed: 1971-10-19
Abstract: Production of coloured stones for the building industry consits of the preparation of a soft plastic mass made from limesand, quartz and water, its compaction into blocks, which are then placed on a conveyor for passing through a furnace for firing and hardening, a layer of colouring being applied to at least one side of the pressed blocks prior to firing, thus ensuring its ceramic bonding with the brick being permanent.
Patent DE-2165903-A1 (DE)
Title: Regular rectangular plastic foam blocks - continuous prodn
Inventor: PROKSA FERDINAND DR
IPC: B29C44/46
Filed: 1971-12-31
Abstract: Continuous rectangular block of plastic foam are produced by a free foaming process in which the plastic mixture is fed on to a laterally enclosed conveyor belt and its movement and expansion aided and controlled. The surfaces of the two enclosing sides and of the conveyor belt are covered by moving foils unwinding from rolls, whilst the plastic material itself may be covered by a gas-permeable sheet and a further covering to impede the escape of fluids, both of which wind off from assemblies supported over the foaming area. On the covers there is a levelling device comprising a roller and heavy metal grill. This mechanism is supported in a conveyor and is adjustable horizontally and vertically.
Patent DE-2166208-A1 (DE)
Title: Moulding reinforced plastics - with controlled temp extruder to prevent premature curing
Inventor: RIZZI MARC A
IPC: B29C48/03
Filed: 1971-12-28
Abstract: The dry fillers and additives are mixed with liq. resin in an arrangement which has two sets of blades at different angles and a screw. The materials are effectively mixed and moved to a similar arrangement below, which feeds and works in conjunction with an extruder. From there the material is injected into a heated mould. The extruder pitch and its jacket are designed to control the temp. of the mix so as to restrain cure until the material enters the mould.
Patent DE-2211504-A1 (DE)
Title: Synthetic wollastonite prodn - by firing phosphor slag with additives
Inventor: RAUSCHENFELS E DIPL ING DR
IPC: C09C1/28
Filed: 1972-03-10
Abstract: The molten slag is water-cooled, ground and mixed with minerals contg. SiO2, Al2O3 or alkali oxide, and slowly fired up to 1200 degrees C in an oxidising atmos.
Patent DE-2220912-A1 (DE)
Title: Injection moulded foam plastic - with closed smooth outer surface
Inventor: TRIER LOTHAR
IPC: B29C44/14
Filed: 1972-04-28
Abstract: The inner wall of the mould is coated at a temp. well below the foaming temp. of the plastic, with a lacquer contg. no solvent and which polymerises or oxidises in the air. The plastic is then injected into the mould. Pref. the lacquer has an acrylic or polymsn. lacquer basis or is a powdered sinter lacquer of fine thermoplastic particles.
Patent DE-2229131-A1 (DE)
Title: German caviar-contg salad prepn - improved by washing away excess dye from roe-corn surface
Inventor: CHRISTENSEN JOERGEN
IPC: A23L17/30
Filed: 1972-06-15
Abstract: Cleaned roe of sea hen (Cyclopterus lumpus) is mixed with a binder, a taste-improver, seasoning agents, an edible dye and salt; subsequently the roe is washed with water for 5-20 mins, and only then mixed with usual salad components, scuh as finely cut fruits, vegetables, fish, shellfish, eggs and opt. a salad sauce. These salads can be stored for some time (under usual conditions) without being grey-black coloured by the dye used for colouring the roe, as its excess is removed from the surface of roe-corns, whilst this part of the dye which has penetrated into the corns does not diffuse to the surface.
Patent DE-2249677-A1 (DE)
Title: Bitumen-plastic-amine mixt - for binding rail track gravel, contg ethylene copolymer and N-3-aminopropyl derivs of fatty acids
Inventor: HEROLD GERHARD DIPL CHEM
IPC: C08L95/00
Filed: 1972-10-11
Abstract: Binder mixt. for rail track gravel, esp. for fast sections, e.g. where trains travel at >=200-220 km/hr., and which does not stick 50 degrees C and does not crack up to -20 degrees C, contains by wt. (a) 90-98% bitumen having a 90-130 degrees C ring and ball softening point, 2-10 penetration at 25 degrees C, and 1-1.05 g/cc density at 25 degrees C, (b) 1-9% mixt. of an ethylene copolymer and (a) or another bitumen, and (c) 1-9% >=1 N-3-aminopropyl- derivs. of 14-18C fatty acids.
Patent DE-2251265-A1 (DE)
Title: High pressure filter with sintered metal filter plates - permitting thorough scraping of cake and high back flushing pressures
Inventor: KOSLOWSKY BERND
IPC: B01D25/21
Filed: 1972-10-19
Abstract: A high pressure, large filter has a membrane, actuated by pneumatic or hydraulic action to press the filter cake and is designed for filtering pressure up to 15 atm and subsequent pressing up to 100 atm. The filter medium is a smooth-walled, sintered metal plate of block having a pore diameter of 5-30 micron. Pref. the filter cake can be removed by scrapers or similar devices which move over the surface of the filtering medium.
Patent DE-2316152-A1 (DE)
Title: Conductive bearing e.g. for plating barrels - with sealing roll to prevent toxic liquid leakage
Inventor: SCHREYER KARL
IPC: C25D17/16
Filed: 1973-03-31
Abstract: The bearing has a bearing shaft and a bearing roll, and is provided with a sealing roll which rotates in a fixed cylinder, through the bottom of which the shaft passes. The sealing roll is fixed on the bearing roll which rotates on the shaft. O-rings are provided on both sides of the sealing roll to seal it against the cylinder bottom and the cylinder lid. The shaft is connected to an external electrical supply lead, and the sealing roll, the cylinder and the O-rings are made of non-conductive material which is resistant to toxic liq.
Patent DE-2318354-A1 (DE)
Title: Replacing pulled threads in cloth - using needle with tail of rippled synthetic filaments to grip thread and pull it back
Inventor: BUZZI CARLO
IPC: A41H31/00
Filed: 1973-04-12
Abstract: A device for replacing drawn or pulled threads in textiles, comprises a bundle of rippled or curled plastics filaments joined together at one end in a needle. Prefd. arrangements comprise a bundle of filaments integrally joined to a needle of the same material a bundle joined to or inserted into the end of the needle, a bundle welded or glued to the end of the needle, or a bundle inserted into a hollow needl.
Patent DE-2318582-A1 (DE)
Title: Pneumatic cushion packaging material - with one self adhesive coating
Inventor: REINICKE MARTIN
IPC: B65D81/03
Filed: 1973-04-12
Abstract: The self adhesive layer coating one side or face of the material is in the form of a fleece which itself is coated on both faces with adhesive so that it sticks to the pneumatic cushion material proper esp to the dimpled side of that pneumatic cushion material. The adhesive on the pneumatic cushion material side of the fleece has a higher bond strength than that on the other side of the fleeve. The fleece is of cellulose wool with a surface density of approx 15 g/m2 and the adhesive used in esp. of the dispersed polymer-in-water type.
Patent DE-2327775-A1 (DE)
Title: Deep drawing die - simultaneously forming a flange on the workpiece
Inventor: SCHENK KARL-HEINZ
IPC: B21D22/21
Filed: 1973-05-30
Abstract: The die is for drawing without a pressure pad and in which the generatrix of the rotation symmetrical workpieces is conical, sinusoidal, elliptical or quarter circular so that the drawing surface is pref. succeeded in the last third by a deviating expanding generatrix.
Patent DE-2330879-A1 (DE)
Title: Upholstery tufting fasteners - pronged washer under conventional button head prevents tearing in use
Inventor: SHEPHERD STEPHAN C
IPC: B68G7/08
Filed: 1973-06-14
Abstract: Tufting of upholstery fabric for ornamentation or to secure padding, is done with a conventional button-headed fastener pushed through and secured on the rear. A special washer fitted under the head has a number of axially extending barbed prongs which penetrate the fabric. Pref. the washer is moulded in glass reinforced nylon and concealed by being of slightly smaller dia. than the head. The pin is allowed some relative movement whilst the prongs hold in the fabric and spread the load. Tearing in use is less likely even with cheaper fabrics.
Patent DE-2335238-A1 (DE)
Title: Air separator in tanker discharge line - has conical surface adjacent vortex to promote expulsion of air
Inventor: POPKEN HERMANN
IPC: G01F15/08
Filed: 1973-07-11
Abstract: A separator for removing gases from the liq. being discharged from a tanker comprises a vortex chamber in the discharge line fitted with a lid having a normally closed extract opening. The vessel is cylindrical and the central region of the lid is shaped as a downward and inward tapering cone. The effect of the cone projecting downwards into the vortex of liq. passing through the chamber is to retard the surface flow of the vortex, resulting in a pressure rise which promotes expulsion of entrained air or gas from the liq.
Patent DE-2344867-A1 (DE)
Title: Large ship's hull or aircraft fuselage erection and maintenance equip. - has working platform on travelling crane jib moving vertically
Inventor: RUTTKAMP HORST WERNER
IPC: B64F5/10
Filed: 1973-09-06
Abstract: The equipment is for use with bodies tapering towards the bottom, particularly the hulls of large aircraft and ships in dry dock. It comprises a crane travelling alongside the hull, with a working platform moving vertically and horizontally on the jib. The crane can have an angled travel chassis, with wheels running on guide rails on the dock wall etc., a mast being mounted on the chassis up and down which a truck carrying the jib travels. The jib can be arranged to slew on the truck, and it can be in the form of a lazy-tongs mechanism. The mast can move up and down on the chassis.
Patent DE-2350186-A1 (DE)
Title: Adjustable directional coupler for coaxial cables - uses bendable metal strip as coupling line with screw adjustable attenuation
Inventor: PERNUTZ PETER
IPC: H01P5/18
Filed: 1973-10-05
Abstract: The directional coupler uses as a coupling line a metal sheet strip in axial direction of the coaxial cable between inner and outer conductor. The ends of the coupling line are connected to the inner conductors of two coaxial connection pillars. The coupling line is held to the outer conductor by means of one or several screws of synthetic material. The screw operating knobs are accessible from the outside of the outer conductor. The screws are held in the outer conductor and are fixed to the coupling line in such a way that activation of the screws changes the distance between the elastic bendable coupling line and the outer conductor. The coupling line is mounted on a base plate.
Patent DE-2351251-A1 (DE)
Title: Substitute natural gas continuous prodn - by mixing two or more separate gaseous components at high pressure
Inventor: BUHMANN HEINRICH
IPC: B01F23/10
Filed: 1973-10-12
Abstract: Supplements to natural gas supply or substitute natural gas is made by continuous mixing of >=2 separate gaseous components in a high pressure mixer to give a mixt, with properties equiv. to natural gas (i.e. C.V. and Wobbe No.) This can then be injected directly into the natural gas supply line. Butane, propane, H2 or other fuel gas are stored in a vessel and mixed with air, compressed up to the necessary pressure. The quantity of supplement or substitute depends on the demand on the gas supply, and a metering device is provided to make additions as demand on the gas supply increases and passes a certain predetermined level. Process can be used (a) in new areas where a gas supply is not yet available but where equipment is installed to accept natural gas pending introduction of supplies, and (b) where the natural gas supply is limited to a certain level because of supply line size.
Patent DE-2356327-A1 (DE)
Title: Water tap with relatively rotatable washers - filters reduce water flow speed so reducing overall noise
Inventor: DELKER WILFRIED DIPL ING
IPC: F16K11/078
Filed: 1973-11-10
Abstract: The body has distributors made of two superimposed washers. One is fixed and has entry holes connecting to the supply. The other face of this washer faces the moving washer and in between the two can be one or more filters of a sound deadening type, placed at predetermined distances. Above the filters can be a space, either gas filled or empty. The filters reduce the speed of water flow, with some sound reduction. The sound is further reduced by the gas (or vacuum) filled space. The filters may be clamped between rings in contact with the wall of a flow channel.
Patent DE-2357536-A1 (DE)
Title: Concrete or plastic paving stone for sports areas - covered with layer of rubber granules bonded by adhesive
Inventor: SCHUMACHER DIETER
IPC: B29C70/68
Filed: 1973-11-17
Abstract: Paving stone of concrete and/or plastic material e.g. rigid polyurethane foam, for use in parking areas, playgrounds, and esp. sports areas has an elastic layer that consists of adhesive-bonded, compressed rubber cuttings or granules, and is bonded to a wide side of the stone so that its upper side forms the visible side of the stone. The material provides an elastic surface with a good resistance to wear and weather. Easily and cheaply manufactured, esp. as the roller may be scrap material.
Patent DE-2363743-A1 (DE)
Title: Electrostatic printer with heater for developing printed web - lifts web from heater when web feed is stopped
Inventor: KIRCHHOFF ROLF
IPC: G03G15/20
Filed: 1973-12-21
Abstract: The printer, e.g. for data processing machines, feeds the web past a printing station into a toner chamber in which toner powder is applied to the web and from which the web passes over a heater body and thence to a pair of draw rollers which effect the feed movement of the web. The rollers are driven by an electric motor automatically adapted to be driven for a short period in the reverse direction if for any reason the forward drive energisation of the motor is stopped. Thereby the web is caused to arch away from the heater body and overheating of the web is avoided.
Patent DE-2401189-A1 (DE)
Title: After-treatment of pickled steel - in heated acid bath contg. ferrous sulphate or chloride, potassium permanganate and nitrate
Inventor: HEIMBERGER WALTER DR ING
IPC: C23G1/08
Filed: 1974-01-11
Abstract: Steel, preliminarily pickled in H2SO4 to remove mill scale and rust, is after-treated, without intermediate rinsing, for 1 min., in a pickling bath heated to >=80 degrees C, which consists of 0.4% FeSO4 oxidised to Fe2(SO4)3 with a stoichiometrically determined addn. of K permanganate (about 0.1%) with a small excess of H2SO4 (about 0.4%); and then set to pH 2-3 by addn. of 0.3% nitrate. In a modified process, steel is preliminarily pickled in HCl and after-treatment is effected by using FeCl2 and HCl.
Patent DE-2403066-A1 (DE)
Title: Liquid-ring gas pump - has axially displaced, radially inward inlet and outlet to each impeller cell and concentric control ribs
Inventor: BAEKER GERHARD
IPC: F04C19/00
Filed: 1974-01-23
Abstract: The pump has an eccentric impeller with externally open-ended cells contained between two end discs, the open ends being in contact with the liquid ring. Each cell has a suction orifice and a pressure orifice, the orifices being arranged in its radially inward bottom and displaced in axial direction. The control rib on the pressure side of the impeller extends from the area just before the point where the impeller is closest to the internal housing wall to the area of advanced compression, whilst the control rib on the suction side extends from the area of advanced suction to shortly beyond the point of nearest approach to the housing wall.
Patent DE-2405096-A1 (DE)
Title: Rubbish removal equipment - has monorail-mounted container rotated by drive at rear, travelling on monorail
Inventor: ALTVATER JAKOB
IPC: B65F9/00
Filed: 1974-02-02
Abstract: The rubbish is discharged from the collector vehicle for onward transport into a large-volume container, travelling by means of bogies on a monorail, and rotating on them about its axis. The container is rotated by a drive at its rear end, which travels on the monorail, and is engaged and disengaged with the container by a mechanism supported on the rear bogie. The drive rotates the container in either direction by means of a detachable clutch, driven by a motor via a flexible coupling. The drive can incorporate an upright disc in bearings on a frame travelling on the monorail, and having rollers engaging with radial ribs on the rear of the container. The frame can be coupled by a hydraulic ram to the rear container bogie.
Patent DE-2415510-A1 (DE)
Title: Sector magnet coils switching device - designed for magnets operated with working current or with closed circuit working
Inventor: SIEBER MANFRED ING GRAD
IPC: B23Q3/15
Filed: 1974-03-30
Abstract: Magnets are arranged into a movable unit, and current is supplied through a strip with contact bars, and through brushes mounted on each magnet. They are magnetised in clamping areas, and demagnetised in neutral areas. Subdivided contact bars have a run-out area between each clamping area and a neutral area in the magnet direction of movement. A voltage corresponding to the clamping area is applied to the contact bars in the run-out area by an electronic switch. Control elements detect position or movement of brushes and control the electronic switch which disconnects the voltage in the run-out area without sparking, when the brushes are entirely in the run-out area. They reconnect the voltage in the run-out area when the brushes are in a neutral area.
Patent DE-2419989-A1 (DE)
Title: Axially floating axle in bogie frame - has inclined pivoting links for guiding axle in bogie frame
Inventor: KOCH WILHELM
IPC: B61F3/02
Filed: 1974-04-25
Abstract: The axially floating axle is used for transverse adjustment of wheel sets for curves. The axle bearings in a bogie are connected to horizontal rods. The other end of a rod is connected on the vehicle or bogie frame. The pivoting points of these rods form corner points of an equilateral trapezium where the distance between the pivoting points on the frame is shorter than that between the pivoting points between axle bearings. In the case of trasverse movement of the wheel set due to centrifugal forces in curves this movement is accompanied by a relative angular displacement between the wheel sets of a bogie. Travelling in curves is improved because the wheels are able to adjust correctly to the given curvature.
Patent DE-2420324-A1 (DE)
Title: Rolling mill idler hydrostatic bearing - is supported on pistons with oil temperature controlled by built-in heat exchanger
Inventor: CHRIST ALFRED DR
IPC: D21G1/02
Filed: 1974-04-26
Abstract: The driven roller is supported in bearings located in a machine frame that carries the idler roll on bearings supported on a stationary shaft from an auxiliary bracket. The gap between the idler roll and the shaft is part filled with hydraulic oil. Located between the shaft and roll on the top side is an hydrostatic bearing that consists of pistons with fluid pockets on the topside at the interface with the roll. Oil is pumped through orifices in the pistons to the hydrostatic pockets. The centre of the hollow shaft carries a cylindrical heat exchanger that receives either hot water or steam through an inlet and discharges through an outlet. The temp. at the rolling interface may be thus adjusted to suit the processed material requirements.
Patent DE-2424139-A1 (DE)
Title: Tetra-amino-pyridine oxidn. hair dye developer - avoids dermatological/allergy problems
Inventor: ROSE DAVID DIPL CHEM DR
IPC: C07D213/74
Filed: 1974-05-17
Abstract: Oxidn. dyestuff-based hair-dyeing compsn. contains a pyridine deriv. of formula (I): (where R1-4 are each H or 1-4C alkyl), or its (in)org. salts as the developer and the usual couplers. (I) avoids the dermatological/allergic reaction often observed when (substd.) p-phenylene diamines are used as developer. (I) also produces satisfactory dyeing when coupled in the presence of atmospheric O2, thus preventing hair damage (due to the presence of oxidants, previously).