baber/WOPTO huggingface dataset:
Patent DE-3938566-A1 (DE)
Title: Recovery of cleaning balls from coolant flow after heat exchanger - saves power with main flow produced vortex to lift balls and convey them to suction openings
Inventor: EIMER KLAUS DIPL ING
IPC: B01D29/11
Filed: 1989-11-21
Abstract: Separating cleaning balls from the coolant water flow downstream of a tube heat exchanger uses vortex producing vanes above a sieve to entrain the cleaning balls. A vortex rotating parallel to the sieve surface and streaching into the sieve is given an axial velocity parallel to the sieve. This axial velocity is induced by a small flow of water from the centre of the sieve to carry the entrained cleaning balls into an outlet tube. The vortex producing vanes are moved relative to the sieve to remove cleaning material and larger impurities removed from the heat exchanger surfaces. USE/ADVANTAGE - Cleaning and descaling of heat exchangers. Inexpensive, simpler, equipment using less water flow and less associated pipework and pumping power.
Patent DE-3940098-A1 (DE)
Inventor: STEPHANI DIETRICH DR
IPC: G11B5/31
Filed: 1989-12-04
Abstract: A thin-film head (2) contains a conductor of magnetic flux similar to an annular head with two magnetic arms (6, 7), which is partially embedded in a depression (12) in a non-magnetic substrate. Each arm (6, 7) has a magnetic layer (6a and 7a, respectively), which forms a magnetic pole (P1 and P2, respectively) at a pole point (8 and 9, respectively), and a magnetic amplification layer (6b and 7b, respectively). This magnetic head should be easy to manufacture and should allow high magnetic flux densities in its conductor. To this end, only the amplification layer (6b) in the magnetic arm (6) facing the substrate (12) is arranged in the depression (12) in the substrate (3) in such a way that its surface (13) lies in the same plane (E) as the surface (14) of the substrate.
Patent DE-4000764-A1 (DE)
Inventor: HERLITZE GERD DIPL ING
IPC: A61M39/04
Filed: 1990-01-12
Abstract: The valve device (30) for a connector (10) of a catheter (21) or the like consists of an open, beaker-shaped hollow cylinder (31) with a slotted base part (34) which is axially movable in a chamber (11) of the housing (20) of the connector (10). A helical spring (40) surrounding the hollow cylinder (31) forces it in the closure position with its opening edge against the inner end of a connector insert opening (13) of the housing whose diameter is greater than the inner circumference of the opening edge of the hollow cylinder (31). The base part (34) of the hollow cylinder (31) is in this case drawn into an adapted central opening (56) of a retention ring (50) fixed in the housing (20), from which opening the base part (34) can be pushed out axially in order to release its branches (43, 44) formed by the slot (42). 
<??>The rubber-elastic hollow cylinder is in this case at all times free from stress, so that the edges of the slot of the base part (34) do not deform. Nevertheless, the insertion of the retention ring (50) achieves an effective closure of the through-flow channel of the connector (10) both against air introduced from the outside and against blood seeping out from the inside.
Patent DE-4001079-A1 (DE)
Title: Radiation-cured coating materials without reactive diluents - by reaction of (meth)acrylic acid, acid chloride or isocyanato-alkyl ester with polycaprolactone-tri:ol or its adduct with di:epoxide
Inventor: KAMPS RAINER DIPL CHEM DR RER
IPC: C08G18/42
Filed: 1990-01-12
Abstract: A radiation-cured coating material without reactive diluents is claimed (I); (I) is a reaction prod. of (meth)acrylic acid, (meth)acryloyl chloride or isocyanato-alkyl (meth)acrylate with a polycaprolactone-triol (II) or with an adduct of (II) and a low-mol. wt. diepoxide (III); (III) is an aromatic diglycidyl ether or an aliphatic or cycloaliphatic diepoxide with mean mol. wt. not above 400, and (II) has mol.wt. below 1000. (III) is a diglycidyl ether of Bisphenol A, butanediol or hexanediol, or 1,2,7,8-diepoxyoctane or 3,4-epoxycyclohexylmethyl-3', 4'-epoxycyclohexanecarboxylate; (II) has two terminal prim. OH gps. and one sec. hydroxyalkyl gp.; the OH gps. of (II) or the adduct thereof are pref. partly or fully reacted with the above (meth)acrylic acid derivs. USE/ADVANTAGE - The invention provides liq.  coating materials with viscosity 5-60 Pa.s and high sensitivity towards electron beam radiation, due to the relatively large no.  or reactive centres; reactive diluents (e.g.  polyfunctional (meth)acrylates, which are volatile, toxic skin irritants are not required. (I) are cured with an electron beam (dose = 120 kGy; accelerating voltage = 165 kV) to give hard, tough coatings, soft flexible coatings, high-grade dielectric insulation, etc.
Patent DE-4001824-A1 (DE)
Title: Tap fitting for container - incorporates plastics skirt and shaped plastics grip rings to fit onto container opening
IPC: B65D47/06
Filed: 1990-01-23
Abstract: The container has an opening with a lipped pipe section onto which is fitted a ring shaped grip with inner- (10) and outer (11) flanges. The inside of the ring has a grip shape to secure onto the opening. The remainder of the tap has a flexible skirt (2) which allows the tap fitting to be stored folded into the container and which has a rotating tap (9, 8) at the end. The ring-shaped grip is secured by a hardened insert ring (24) and an L-shaped outer mounting ring (12). The latter is sealed to the grip ring.
Patent DE-4002674-A1 (DE)
Title: Carbon mon:oxide redn. in waste gas - by oxidn. in waste heat boiler
Inventor: DIRRIGL ALBERT
IPC: B01D53/86
Filed: 1990-01-30
Abstract: In the redn. of the CO content in waste gases esp. from waste incineration e.g. in a rotary kiln, in which the waste gases are passed through a waste heat boiler and then a cleaning unit, the novelty is that combustion gases from burners, esp. high speed burners, are injected together with an oxidant and/or catalyst into the boiler. ADVANTAGE - Combustion of CO to CO2 is greatly improved to provide high Co content redn..
Patent DE-4005171-A1 (DE)
Title: Facsimile appts. coupled to telephone terminal
Inventor: YAMAMOTO KAZUHITO
IPC: H04M11/00
Filed: 1990-02-19
Abstract: The terminal, contg. the facsimile appts. identification is transmitted to another telephone terminal, together with an image signal, generated by a document scanner. A discerning code identifies the terminal to which the signals are to be transmitted. The facsimile appts. has a memory (2) storing the terminal identification signals in a number of different languages for various countries, together with corresponding country symbols. A control unit discerns the country code and allocates to it the stored terminal identification signal in the appropriate language. The read-out terminal identification signal is added to the image signal to be transmitted by the control unit.
Patent DE-4005366-A1 (DE)
Title: Extn. process using immiscible liq. phases - improved by bonding one of the phases on the surface of chemically inert solid carrier bodies
Inventor: MISTLER MANFRED
IPC: C12P1/00
Filed: 1990-02-21
Abstract: An extn. process using two immiscible or only slightly miscible liq. phases esp. for isolation and enrichment of microbial metabolic prods. from aq. phases using organic phases is improved by bonding by adhesive power, one of the two phases during a conventional extn. step on the surface of carrier bodies consisting of a chemically inert, solid material. USE/ADVANTAGE - The process can be used for liq. extns. even in systems which tend to form stable emulsions. The process is rapid and completee and clear phase sepn. is achieved. In particular, the work up and prepn. of natural substances prepd. by fermentation are facilitated. The process uses simple materials.  Previously necessary measures associated with loss of yield and high demands on energy and appts. are avoided. Thus the process is suitable for continuous operation on a large scale.
Patent DE-4007279-A1 (DE)
Title: Connecting fixture for single branch gas meter - comprises shut=off valve, pressure regulator and overpressure safety valve in feed line
Inventor: JESCHKE IMMANUEL
IPC: G01F15/18
Filed: 1990-03-08
Abstract: A connecting piece with at least three short feed pipes is joined to the supply line. One short feed pipe is connected to the gas meter, another to the consumer and the third to a gas stop cock whose blocking member is adjustable to blocking and open positions by a rotatable lap. The latter (23) has a bore (26) with a closure (29,32). The latter can be in the form of a stop (29) which can be threaded, a valve (32) operatable from outside, or a pressure measuring appts.. In the case of a valve a rod (36) can project from the valve body (34). The bore (26) can be threaded (27) and have an extension piece (28). ADVANTAGE - Reduced space. Connection to pressure measuring appts. simple and easily accessible. Pipeline can easily be made pressureless.
Patent DE-4007700-A1 (DE)
Inventor: MEYERROSE KLAUS-DIETER
IPC: E05F15/56
Filed: 1990-03-10
Abstract: An electro-pneumatic door-operating system in passenger transport vehicles, in particular for outer swing doors of buses. A drive cylinder (3) which can be acted upon on both sides can be connected to a compressed air source (1) via a reversing valve (2). The reversing valve (2) can assume three valve positions for the closing movement, the opening movement and a powerless state in which the drive cylinder (3) is acted upon on both sides. The powerless state is triggered by actuation of an emergency release (4). An emergency control device for triggering an opening movement of the door has a bistable relay (5) with a first relay contact (5.1) which effects the closing movement in a "CLOSED" position and effects the opening movement in an "OPEN" position and is connected to a voltage source (SP) on the one hand via the driver's pushbutton (S1) and on the other hand via a second relay contact (5.2) and an opening switch (S2) which closes in the event of an attempt at opening. The relay (5) has a T input (5.3) which is connected to the driver's pushbutton (S1) and an S input (5.4) which is connected to an emergency switch (S3). When the emergency switch (S3) is actuated, the first relay contact (5.1) is placed in the "OPEN" position and the second relay contact (5.2) closed. When the opening switch (S2) closes, the opening movement of the door is effected. <IMAGE>
Patent DE-4009185-A1 (DE)
Title: Dishwasher or washing machine with storage container - filled to pre-set level, emptied into work container and connected to recycling water chamber
Inventor: KAEFFERLEIN HEINZ
IPC: A47L15/42
Filed: 1990-03-22
Abstract: A dishwasher or a washing machine incorporates a storage container which can be filled up to a predetermined level and emptied into the work container and is connected to a recycled water chamber. The chamber has a top opening fed by leaked water from a free flow stretch. The lower chamber section features a controllable outlet leading to a salt container of a water softener. During the emptying of the storage container into the work container and before the achieving of the predetermined work level, a circulating pump can be switched on. ADVANTAGE - The surface filter of the machine is already rinsed free of dirt particles before the filling of the work container has finished.
Patent DE-4010319-A1 (DE)
Title: Liq. hydrocarbon mixt. of mineral oil fraction and aromatic polymer - useful as modifier for printing ink and as plasticiser for rubber
Inventor: ZICK HANS-JUERGEN
IPC: C09D11/03
Filed: 1990-03-30
Abstract: A liq. hydrocarbon mixt. comprising 30-90 wt.% of a mineral oil fraction with a boiling range of 200-450 deg.C and 70-10 wt.% of one or more aromatic polymers. Pref. the mineral oil has a boiling range of 300-400 deg.C and generally has an aromatic content of up to ca. 30%, a density at 20 deg.C of 0.8-1.2 g/m3 (sic) and a flash point of over 60 deg.C. The polymer component is e.g. a styrene- or alpha-methylstyrene resin or an aromatic hydrocarbon resin, pref. with a softening point of 30-120 deg.C, esp. 60-90 deg.C.
Patent DE-4015462-A1 (DE)
Inventor: PIEFENBRINK WILFRIED DIPL ING
IPC: E21D9/11
Filed: 1990-05-14
Abstract: To excavate drifts, tunnels, stopes, caverns or the like, tools operating in an undercutting manner are mounted on radially pivotable tool arms, which are located on a rotary working head. With at least one tool (54) on a tool arm (51), a central region (Z) of the rock face is cut radially from the outside inwards by pivoting of the tool arm (51), and with at least one other tool (45) on a tool arm (32), an outer region (A) surrounding the central region (Z) of the rock face is cut radially from the inside outwards by pivoting of the tool arm (32). Pivot drives (30) for at least some tool arms (31, 32, 33) can be controlled in such a manner that cross-sections with contours deviating from a full circular shape can be cut. Muck removing devices (27, 28) are used for collecting and transporting away the muck produced by the cutting operation.
Patent DE-4016753-A1 (DE)
Title: Poly:hydroxy:alkan:amino-bis(methylene:phosphonic acid) cpds. - useful as complexing agents, and prevent scaling e.g. machine cleaning and washing plant
Inventor: BLUM HELMUT
IPC: C07F9/38
Filed: 1990-05-25
Abstract: Polyhydroxyalkanamino -bis(methylenephosphonic acids) and their salts, of formula (I) R(CHOH)nCH2N(CH2PO3M2)2 are claimed. Where M = H, alkali metal, NH4 or tetraalkylammonium; R = H or 1-3C alkyl; n = 2-6. USE/ADVANTAGE - Use of (I) as complex-formers with threshold activity is claimed. (I) are also sequestering agents. Applns. are prevention of scale, e.g. in machine cleaning and washing plant (e.g. bottle cleaning), in steam prodn., in treating cooling water, in recovering petroleum, and in coal mining. Only small amt. of (I) are needed, giving protection of the environment. (5pp Dwg.No.0/0)
Patent DE-4018769-A1 (DE)
Title: Cover for beds and pillows with press studs - has all round symmetrical pattern of press studs for different combinations
IPC: A47G9/02
Filed: 1990-06-12
Abstract: The bed cover or pillow has the complementary spring parts (3) and ball parts (4) of press studs (2) fixed on the circumferential edge on one side of the cover (1) or pillow in a symmetrical position relative to the longitudinal axis and/or transverse axis. The spring and ball parts (3, 4) are pref. set in a complementary symmetrical position relative to both axes (5, 6) of the quilt or pillow. The spring parts and ball parts can be arranged in alternation. USE/ADVANTAGE - Similar or different covers and pillows can be connected in various combinations.
Patent DE-4019794-A1 (DE)
Title: Optical angle transducer with rotating coded disc - interrupting light path between light emitting optical conductor and light receiving conductor of greater fibre dia and numerical aperture
Inventor: KUROSAWA YOSHI
IPC: G01D5/347
Filed: 1990-06-21
Abstract: An optical angle transducer consists of a light barrier whose light path is intermittently interrupted by peripheral optical encoding on a rotating disc. This generates optical pulses corresp. to the disc rotation angle. - The light barrier's light source and receiver contain a light emitting (6) and a light receiving (7) optical conductor respectively. The light receiving conductor has a larger fibre dia., and numerical aperture than the light emitting conductor.
Patent DE-4019994-A1 (DE)
Title: Goods display carrier with detachable securing device - has loop running round goods and closed by paper strip but leaving visible area
Inventor: SCHLICHT RAINER DIPL ING
IPC: A47F1/14
Filed: 1990-06-22
Abstract: The goods display unit has at least one support (10) and a detachable transport security element in the form of a loop (14,16) which runs round the articles (12) and is closed by at least one paper strip (16) in order to secure the goods on the support. The loop runs free at least over a visible surface of the display unit and the loop closure is produced by an adhesive layer (18) which is restricted to the relevant closure area of the paper strip (16). The loop can be formed inpart by the display support (10) or by a lid (14). The paper strip pref has a fibre adjustment in the loop circumferential direction. USE/ADVANTAGE - Goods display unit adhesive is only applied to the closure area the rest of the paper can be recycled after use.
Patent DE-4023793-A1 (DE)
Title: Nuclear sepn. from fission prods. - in nitric acid soln. using pure tri:butyl-phosphate extractant
Inventor: STOLL WOLFGANG PROF DR
IPC: G21C19/46
Filed: 1990-07-26
Abstract: Nuclear fuel (esp. U and Pu) is sepd. from fission prodts in nitric acid soln. by countercurrent contact of the soln.  with solvent free tributyl phosphate. Pref. the two streams are maintained at 50-300 deg. C. and at a pressure above the corresponding boiling pressure of the nitric acid. ADVANTAGE: Omission of diluent (usually perosine) allows higher vol. throughout of the nitric acid soln. through the extn.  vessel and avoids the flammability problems of kerosine so tributyl phosphate can be heated to reduce its viscosity and to accelerate nuclear fuel transfer to the tributyl phosphate, thus minimising radiolytic decomposition of the tributyl phosphate.
Patent DE-4034582-A1 (DE)
Title: Transport system for ship sections - has alternate operating lifting rams and sliding supports
Inventor: POENISCH ACHIM
IPC: B63C3/00
Filed: 1990-10-27
Abstract: The ship's section (1) is supported on a set of cross frames (2) linked by longitudinal frames (3) supported on pairs of vertically lifting rams (4). Each ram supports a sliding foot (6). The frame can be slid onto a series of flaps (7) divided into vertically stacked sections. Alternate operation of the pairs of rams lowers the structure down, the alternate vertical sections swung aside when not in the support position. One of the upper sections (11) is shorter, eliminating a pivot s action. The stepwise vertical movement of the structure can be operated in either direction ie. to raise- and lower the hull section. USE/ADVANTAGE - Launching hull sections, drydock operations. Simple slide and hoist action. Supports heavy weights.
Patent DE-4035391-A1 (DE)
Title: Optical scanning unit with variable intensity - has separate image generators for forming different intensity images in different regions of scanned surface
Inventor: YAMAZAKI TATSUYA
IPC: H04N1/04
Filed: 1990-11-07
Abstract: A variable intensity optical scanning unit has a scanning device for a light beam from a source (15) and a first image generator (2,3) converting the beam into an image with a first point dia. relative to a scan direction within a defined region of a scanned surface. A second image generator using the first generator and part of an optical system (11,12) converts the beam into an image with a second point dia. within a different region of the scanned surface (5). USE/ADVANTAGE - Simple arrangement can vary point dia. and scanning region to form variable intensity images.
Patent DE-4035594-A1 (DE)
Title: Plant for burning coal dust with reduced fresh air input - has air amt. lowered in cold air aspiration channel, leading from upper area of boiler housing to fan
Inventor: BUDE FRIEDRICH DR ING
IPC: F23C7/08
Filed: 1990-11-06
Abstract: The combustion chamber (1) is equipped with main burners (2) and their air boxes (3) together with flue gas return suction (4). The cold air aspiration conduit (5) leads from the upper area of the boiler housing to a fan (6) outside the housing. The pressure line from the fan issues in a air pre-heater (7). Beyond the pre-heater is a hot air conducit (8) which passes through the boiler housing side wall (20), and with corresp. distributors (9) to the air boxes. Between the cool air aspiration conduit and the hot air conduit the ambient air line (10) has a clack valve. In the hot air conduit is a cover (11) which issues in the combustion air conduit (12), which passes through the wall of the cold air conduit where it is retained by connectors (13,14). USE - To burn coil dust with reduced fresh air input.
Patent DE-4040105-A1 (DE)
Title: Hot rolling of strip from thin cast sections and process plant - uses several casting lines with compensating and swivelling ovens permitting casting transfer from separate lines to single rolling line
Inventor: SEEBOTH ARNO DR
IPC: C09K19/54
Filed: 1990-12-12
Abstract: The liquid crystal light valve has a transparent, planar substrate (13) in which thermotropic liquid crystal droplets are embedded as a distribution of separate, finely dispersed points. Two electrode surfaces are disposed on the surface of the substrate, both electrode surfaces being transparent, or one being transparent and the other reflective. The above layers ae arranged between two crossed polarisers. One of the electrode surfaces may be replaced by an electron emitter which forms a corona on the side of the substrate not having an electrode. The liquid crystal molecules (11) in the separate droplets have a homogenous preferred orientation without the application of an electric field. The substrate comprises a high-ordered structure. The liquid crystal molecules may have a positive or negative anisotropy. USE/ADVANTAGE - For LC display. Switches quickly with low threshold voltage; high contrast with simple cell layout.
Patent DE-4040246-A1 (DE)
Title: Descending bed reactor for treating combustion fumes - has conical base section of overlapping slats through which fumes pass into reactor to give no dead zones
Inventor: KRAMBROCK WOLFGANG DIPL ING
IPC: B01D53/74
Filed: 1990-12-15
Abstract: Combustion fumes, esp. from power stations, are purified for discharge into the atmos. while rising in a reactor column in counter flow with a descending bed (3) of reaction material. To ensure uniform distribution of fumes over the entire cross section of the descending bed, which is itself unobstructed by internal guides or deflectors, the conical lower section (7) of the column consists of a series of overlapping slots (14) between whose gaps (17) the fumes enter. Slots may be individually adjusted for optimum fume distribution. Fumes may enter the slatted column section via an unslatted surrounding conical chamber (18) of larger conical angle. A member of purification reactors may be disposed side by side and at different vertical levels. At intermediate levels a similar slatted conical structure may deliver further gases into the reactor, e.g. NH3 for denitrification. ADVANTAGE - The entire mass of solids descends uniformly, with no dead zones.
Patent DE-4041303-A1 (DE)
Title: Telescopic drill rod with insertions of absorbent materials - for reducing noise and vibration
Inventor: HABERER JOHANN
IPC: E21B17/00
Filed: 1990-12-21
Abstract: Telescopic drill-rod has an inner pipe surrounded by at least one outer pipe that has a double wall whose inner space is available for a sound-absorbing material. In addn., or alternatively, spaces not used can be at least partly filled with vibration-absorbing materials and impact surfaces can have buffer areas for impact damping. USE/ADVANTAGE - Telescopic drill-rods (Kelly rods) can cause a high level of noise affecting the neighbourhood (which may be residential) as well as the drill personnel. The design reduces noise emissions by constructional and acoustic means