baber/WOPTO huggingface dataset:
Patent DE-4011991-A1 (DE)
Title: Simultaneous sequencing of several DNA samples - by cloning into separate vectors, complementary strand synthesis from specific fluorescent labelled primers, electrophoretic sepn. etc.
Inventor: KAMBARA HIDEKI
IPC: C12N15/09
Filed: 1990-04-12
Abstract: Method for DNA base sequencing comprises, (1) cloning a no. of DNA samples in different vectors (1-4), (2) synthesising the complementary strands of the samples (5-8) in admixture with primers (9-12) each primer being able to hybridise with only one particular vector and each labelled with different fluorophores having different emission wavelengths, (3) prepn.  of 4 DNA-fragment gp. each with different end gps. from the resulting mixts. (i.e. 5-9, 6-10, 7-11, 8-12) and (4) electrophoretic migration of the fragment gps. and determination of fluorescence emission from the fragments in each gp. USE/ADVANTAGE - This method does not require complex sample pretreatments and, unlike the conventional multiplex DNA sequencing procedure, is not limited to samples which can be labelled with radiosotopes. Many samples can be processed simultaneously and no correction is required for differences in electrophoretic migration rates caused by different labelling dyes.
Patent DE-4012009-A1 (DE)
Title: Appts. for continuous electrochemical oxidn. of hetero-aromatic cpds. - esp. poly:pyrrole film prodn. with bubble barrier between cathode and rotary anode
Inventor: HERRMANN UDO DR
IPC: C08G61/12
Filed: 1990-04-13
Abstract: Appts. for continuous electrochemical oxidn. of heteroaromatic cpds. (I), esp. pyrrole (IA), consists of an electrolysis vessel (1) contg. the aq. electrolyte system (2), a vertical immersed cathode plate (3), parallel to the side wall, a cylindrical anode roller (4) with its axis parallel to the cathode, which is about half immersed in the aq. electrolyte, and a cylindrical roller (8) for winding up the polyheteroaromatic film (6) formed on the anode.  The novel features are that (a) the anode or its surface consists of corrosion-resistant stainless steel; and (b) an inert separator is placed between the cathode and anode in the electrolyte surface zone. USE/ADVANTAGE - The appts. gives high quality electroconductive (I) polymer, esp. polypyrrole films with a thickness of 2-100 microns and the results are reproducible. The films are smooth and glossy, with a surface roughness less than 25 microns, and have the required mechanical stability and electrical properties.
Patent DE-4014618-A1 (DE)
Title: Bactericidal cement conduits etc., for waste water - made using residual dust and ashes from burning refuse, bound in elution resistant form
Inventor: HOELTER HEINZ DIPL ING
IPC: F16L9/08
Filed: 1990-05-08
Abstract: Waste water conduits, containers, pits, clarifier basins and/or drains are made from residual dusts and/or ashes from the burning of urban refuse bonded in elution-resistant form. USE/ADVANTAGE - The dusts and ashes contain residual dioxins, furans, heavy metals, etc., which render them totally bactericidal and fungicidal, so that the cement pipes, conduits, etc., contg. these are resistant to attack by waste waters contg. various bacterial and fungal strains which previously caused surface attack and disintegration of conventional cement pipes etc., whilst the toxic components in the dust and ashes are bound in elution-resistant form.
Patent DE-4016877-A1 (DE)
Title: Swing conveyor with elongated conveyor channel - has leaf springs connected to conveyor channel and counter mass
Inventor: FROELICH BERNHARD DIPL ING
IPC: B65G27/08
Filed: 1990-05-25
Abstract: The swing conveyor has a support set underneath an elongated conveyor channel and several leaf springs and a swing drive.  The leaf springs (8) which are mounted spaced from each other underneath the conveyor channel are mounted with their longitudinal axes (9) parallel to the floor (10) of the conveyor channel (2) and with their broad sides inclined by the swing angle. The leaf springs are each connected at one end to the conveyor channel (2) and at the other end to a counter mass (17, 18). USE/ADVANTAGE - Swing conveyor with substantially reduced overall structural height.
Patent DE-4017101-A1 (DE)
Title: Tube for transporting refrigerant - has polyamide inner layer, rubber interlayer, reinforcing fibre layer and outer layers, with phenolic resin between adjacent layers
Inventor: IGARASHI ICHIRO
IPC: B32B1/08
Filed: 1990-05-28
Abstract: Tube (I) for transporting refrigerant (II) has (a) an innermost layer of polyamide resin, (b) interlayer(s) of rubber material arranged radially outside layer (a), (c) a radial layer of reinforcing fibre outside layer(s) (b), (d) a radial outer tube with layer(s) contg. the outermost layer and (e) layer(s) of phenolic resin (III) with a total thickness of 5-100 microns; each layer of (III) is applied to an appropriate contact surface at the interface between two adjacent layers, i.e. layer (a), at least one layer (b), layer (c) and at least one layer of outer tube (d). Pref. total thickness of (e) is 10-60 microns; (e) consists of a single layer of (III), pref. between (a) and (b), or between (b) and (c) or between (c) and the outermost layer; (III) is mainly a phenol/aldehyde condensation polymer, pref. derived from phenol, zxylenol or resorcinol and formaldehyde, acetaldehyde or furfural; (III) is a phenolic resin adhesive; layer (e) is formed on innermost layer (a) by passing (a) through a hole made of a spongy structure impregnated with liq. (III).
Patent DE-4022003-A1 (DE)
Title: Dispenser for towel roll - provides automatic warning when towel is fully used and with release of standby unit
IPC: A47K10/28
Filed: 1990-07-11
Abstract: The discharger has a towel roll which supplies a loop for hand drying, either by pulling on the towel or by a sensor activated dispensing drive. When the towel is fully used a warning signal is activated and the dispenser blocked. The end of towel sensor is a tension monitor, contact set or other monitor. The end of towel signal can also be used to release to standby towel dispenser mounted alongside, and connected by control cables. The dispenser is switched to the operating condition by a servo released trapdoor. ADVANTAGE - Improved service, easy indication of end of towel availability.
Patent DE-4022658-A1 (DE)
Title: Coding electrical fuses and monitoring their transport during mfr. - involves testing individually after mfr. and applying machine readable code enabling automatic checking during mounting
Inventor: FRIEDRICH CLAUS DIPL ING
IPC: H01H85/34
Filed: 1990-07-17
Abstract: The electrical properties of individual fuses are tested after manufacture and the results are immediately printed on the fuse body in the form of a machine-readable code (4). The code is subsequently read to identify the fuse when delivered for mounting on a p.c.b. or in an electrical device. The machine-readable code is applied in addition to the legible code. USE/ADVANTAGE - During manufacture of p.c.b.(s) and electrical equipment. Eliminates possibility of erroneous fuse selection.
Patent DE-4025570-A1 (DE)
Title: Appts. for pasteurisation of fluids partic. milk - has pressure drop in outlet from switching valve prevented by second pump in section from cooler and with pressure side facing cooler
Inventor: RIEKEN GERD DIPL ING
IPC: A23C3/033
Filed: 1990-08-11
Abstract: Appts. for pasteurizing fluids, particularly milk, comprises pumps, heat exchangers, heaters and coolers. The invention describes two arrangements for avoiding an unwanted pressure drop on the pasteurized side which occurs when a switching valve behind the heater responds to an automatic control. One arrangement consists of a second pump the pressure side of which is connected to the section of an outlet pipe from the switching valve after it leaves the cooler. USE/ADVANTAGE - The arrangement is used is pasteurizing of fluid, particularly milk and avoids the pressure drop which occurs in the first outlet pipe when a switching valve is operated.
Patent DE-4027326-A1 (DE)
Title: Windscreen wash-wipe system with pump control memory -  adjusts amt. of liq.applied as function of duration of driver's latest operation of washswitch
Inventor: WOLFRAM BERTHOLD DIPL ING
IPC: B60S1/48
Filed: 1990-08-29
Abstract: The liq. is sprayed (W) on to the windscreen (F) from a reservoir (V) by means of a pump (P) driven by a controller (R) which starts the wiper motor (M) when the wipe switch (X) is closed (I). Operation (A) of the wash switch (Y) loads the memory (S) of the controller (R) with a value approximately correlated with the duration of this operation.  In subsequent washes the amt. of liq. pumped is approximately correlated with the value stored in the memory (S). USE/ADVANTAGE - For repeated intermittant wash and wipe action. The driver can easily vary quantity of liq. supplied esp. in dense traffic over damp and dirty roads.
Patent DE-4029407-A1 (DE)
Inventor: KIRSTEIN LOTHAR DIPL ING
IPC: B60T8/42
Filed: 1990-09-17
Abstract: A hydraulic dual circuit brake system with diagonally disposed brake circuits, an antilock brake system (ABS) and a drive slip control system (ASR) for motor vehicles has a four-channel hydraulic unit (16) with electromagnetic control valves (25-28) and a backflow pump (29) with two separate pump elements (32, 33) for each brake circuit. Braking pressure in ASR mode is supplied by an additional hydraulic unit (31) which comprises means for connecting one of the two pump elements (32, 33) to a brake fluid reservoir (14) and two reversing valves (41, 42). The two reversing valves (41, 42) are incorporated in the return lines (17, 19) from the two pump elements (32, 33) to the master cylinder (11). In ASR mode, the two reversing valves (41, 42) are reversed and each connects an output of the pump elements (32, 33) to the brake fluid reservoir (14). The pump element (33) connected to the brake fluid reservoir (14) develops a high braking pressure which is transmitted to the wheel brake cylinder (10) of the spinning driving wheel (VL, VR).
Patent DE-4031852-A1 (DE)
Title: Ground water level raising - using slit trench degassed by initial bottom supply of water
Inventor: SCHLEGEL WILHELM DIPL ING
IPC: B01D39/06
Filed: 1990-10-08
Abstract: (A) in the raising of ground water level by introducing seepage water via horizontal piping in a closed filled slit trench, the novelty is that initially seepage water is allowed to flow into the lower region of the trench until the water level has reached at least approximately the upper region so that the trench filling is simultaneously degassed. (B) equipment for carrying out the process is also claimed. ADVANTAGE - The initial water filling stage has a backflushing action, which removes any accumulated dirt particles from the trench filling.
Patent DE-4035247-A1 (DE)
Title: Medical electrode for physiotherapy consisting of two compact layers - has current conducting medical polymer forming elastic body with elastic metal grid between two layers
Inventor: ZVETKOV JORDAN KOSTADINOV
IPC: A61N1/04
Filed: 1990-11-06
Abstract: The metal grid (4) and the metal contact clip (5) are vulcanized together. The two layers (2, 3) are of current conducting medical polymer, e.g. rubber. The electrode is inserted in a cover mfd. from multilayered cotton material, which is soaked with a physiological soln. on the side, whcih is set ont he skin of the patient. This soln. responds to the treatment and the stimulation of the patient. USE/ADVANTAGE - Medical electrode for physiotherapy, developed so that ohmic resistance is uniformly distributed along its entire contact surface, and skin of patient is not harmed. Electrical parameters remain unchanged with multiple use. Gives possibility for carrying out steam sterilisation.
Patent DE-4042310-A1 (DE)
Title: High pressure mixing head - has coaxial annular spray jets and valves with separated supplies which can be recirculated
Inventor: FELKEL GEORG
IPC: B01F5/02
Filed: 1990-12-21
Abstract: A high pressure mixing head for at least two fluids, such as polyurethane components, has a housing, a middle part and an inner part which together form separately fed annular co-axial passages. There is no mixing chamber and the components are mixed outside the head where they expand into an intermingling jet. The head can be controlled pneumatically or hydraulically and the valve openings can be varied with adjusting rings . USE/ADVANTAGE - The mixing of highly reactive components can be interrupted when required and the fluids recirculated to the supply tanks without contamination. (4pp Dwg.No.0/3)
Patent DE-4102545-A1 (DE)
Inventor: WEISER JUERGEN DR
IPC: C14C3/16
Filed: 1991-01-29
Abstract: Disclosed is a method of self-tanning, pre-tanning and co-tanning skins and hides and for retanning leather and hides, using carbonyl compounds of formula (I), in which R<1> is hydrogen, C1-C8 alkyl groups, phenylalkyl groups with a total of up to 12 C-atoms or phenyl groups, wherein phenyl residues may also be substituted with one or two C1-C4 alkyl groups, C1-C4 alkoxy groups, hydroxyl groups, amino groups, carboxyl groups, sulfo groups or halogen atoms; n is 1, 2, 3, or 4; and x is an OH, SH, NH2 or PH2 residue when n = 1, a bridging O, S, SO, SO2, NH, NR<2>, PH or PR<2> group, where R<2> is C1-C4 alkyl, when n = 2, a tertiary N- or P-atom or the trivalent group P =O when n = 3, and a quaternary N-atom when n = 4. The corresponding acetals or ketals of the carbonyl compounds of formula (I) may also be used.
Patent DE-4106622-A1 (DE)
Title: Vacuum rotor valve with 4 ports - is used in extraction systems where heat and hot debris are present
Inventor: STUMPE HARALD
IPC: F16K11/085
Filed: 1991-02-27
Abstract: This vacuum rotor valve (6-11) is to be used in the operation of extraction systems where hot debris is to be removed. The valve body contains a butterfly valve rotor (10) and four inlet/outlet ports. The rotor is controlled using existing actuator types working an arm mounted to the rotor shaft. The valve has distinct advantages over existing ball, slide or cylinder valves. The wearing action of vacuum, heat and the hot particles is more pronounced on the above complex valve types than on this simpler unit. USE/ADVANTAGE - Vacuum rotor valve used with extraction systems where hot debris is to be removed.
Patent DE-4106877-A1 (DE)
Title: Flexible, gas-tight pipeline coupler
Inventor: HUZENLAUB PETER
IPC: F16L59/21
Filed: 1991-03-05
Abstract: The pipeline coupler has a bellows (3), whose each end  has a link (1,2) joined to a  pipe.  Inside the coupler is a jacketed, tubular insulating cassette (6) with a jacket of austenitic steel, filled with refractory insulate (9). The latter is pref. made of ceramic fibres.  Between the ends of the insulating cassette and the links may be sealing cord (7).  Strips of foil (11) are fixed to cassette jacket (10).
Patent DE-4106878-A1 (DE)
Title: Manual shower holder - has holder carrier, held spring-loaded on slide bar with release element
Inventor: SCHULZ HANS RICHARD
IPC: E03C1/06
Filed: 1991-03-05
Abstract: The device has a holder for a manual shower; a U-shaped body sliding on a bar, with a curved section enclosing more than half of the bar, and a turnable element for removal of the slide body from the bar. The body is formed as a clamp unit (3), and its curved section (2) is clamped to the bar (1) by spring action. The release element acts on the flanks (4,6) of the clamp unit, to expand these.  It is turnably located between the flanks. ADVANTAGE - Gives even clamp force on slide bar, requires only little force for release of slide body.
Patent DE-4107458-A1 (DE)
Title: Determining exact position of lower jaw - for production of dental prosthesis
Inventor: KOERBER SEBASTIAN
IPC: A61C19/05
Filed: 1991-03-08
Abstract: The appts. is used for determining the correct position of the lower jaw, in order to produce a dental prosthesis. It consists of a register plate carrier (11) which is fastened to one of the jaws, and a register element carrier (4) attached to the other jaw. The height of the register plate carrier is adjusted by means of a screw which passes between the lips of the patient. The screw (2) screws into a tapped hole in a bracket which forms part of the register element carrier (4). The end of the screw presses against the lower-end of a lever (7) which is swung upwards to adjust the height of the register plate carrier (11). USE/ADVANTAGE - Determining the correct position of the lower jaw with mechanism to adjust the position of the register plate.
Patent DE-4110361-A1 (DE)
Title: Carburising iron@ workpieces in gas phase process - with carbon mon:oxide to hydrogen@ ratio increased during specific phases of process to optimise carbon transfer to iron@ surface
Inventor: STRIGL REINHARD DIPL ING
IPC: C23C8/22
Filed: 1991-03-28
Abstract: Carburising iron workpieces uses a carburising atmos. of gaseous H2 and Co at 800-1050 deg. C in which during a certain phase of the process the Co to H2 ratio is raised to above 1:2 by drawing off some of the atmos. and passing it through a gas sepn. plant from where the Co is recycled back to the carburising furnace. This may be enhanced by supplying fresh Co from a special fixed source or the special source can be used alone. The gas sepn. plant is a membrane gas sepn. plant. During certain phases of the process, 20-70% of the atmos. feed is drawn off. This gas is cooled, filtered, compressed and then fed to the gas separator with the Co amt. fed back to the furnace as the main gas feed is reduced. At the start of the process the atmos. is essentially N2-free Co from the special fixed source is fed into the furnace in a short phase at the start of the process (i.e. 10-36% of the total process time) N2 is added to the atmosphere during a later stage of the process. ADVANTAGE - The Co to H2 ratio is economically raised above 1:2 thus approaching the optimum 1:1 ratio required for good carbon transfer into the iron surfacee ga
Patent DE-4116499-A1 (DE)
Title: Screen frame for flat sifters - has cascade sifting action with numerous fall channels
Inventor: PAULITZ JUERGEN DR
IPC: B07B1/38
Filed: 1991-05-21
Abstract: The insert sieve (1) which has a geometrically regular shape is mounted inside the frame holder so that fall channels are formed between the frame and sieve. The sieve does does not contact the support strips (2) of the frame. Connecting webs (4) are mounted between the outer strips of the insert frame (3) and the support strips (2) of the frame holder and/or between the outer strips of the insert frame (3) and another connecting web (4) and/or between the support strips (2) of the frame holder and another connecting web (4). The connecting webs are pref set between the corners of the insert sieve and the support strips (2) of the frame holder and/or between the corners of the sieve and other connecting webs (4). The cross-sectional surface of all the fall channels (5) are preferably the same size. USE/ADVANTAGE - Greater variations are possible whereby 8 or 16 available guide channels are formed.
Patent DE-4118756-A1 (DE)
Inventor: SCHUNK ECKART
IPC: F27B3/08
Filed: 1991-06-06
Abstract: A process is disclosed for melting scrap metal. Threephase current is rectified to direct current by thyristors and is led through a cathode, through the material contained in a metallurgical vessel and through a bottom electrode designed as an anode. In order to actively influence the combustion by the electric arc and to attain the metallurgically highest possible power input by simple means, the power current is led through a group of at least two thyristors controlled by individually adjustable control currents; the negatively polarized power current is fed back to the melt by a common electrode and the positively polarized power current is independently fed back to the melt from the bottom of the vessel through at least two anodes.
Patent DE-4118773-A1 (DE)
Title: Position detector for magnetised scale or similar - has sensor contg. several magnetic sensor elements, each with magnetic resistance elements in series
Inventor: TADA JUNICHI
IPC: G01D5/245
Filed: 1991-06-07
Abstract: The position detector has a magnetisied scale (10) with several magnets (13) arranged in sequence with a defined grid separation and a magnetic sensor. The sensor is mounted opposite the magnetised scale so that the two parts are movable w.r.t. each other and it contains several magnetic sensor elements (12a-12h), each contg. several magnetic resistance elements (18, 19) connected in series. The magnetic resistance elements are so arranged as to not overlap each other when viewed in the longitudinal direction of the magnetised scale. USE/ADVANTAGE - For detecting position of speed of magnetised scale or similar. Suppresses harmonic omponents and is for very close packing of magnetic resistance elements.
Patent DE-4121468-A1 (DE)
Title: New use of cpds. isolated from Streptomyces - for treatment of HIV infection
Inventor: BACH GABRIELA DIPL CHEM
IPC: A61K31/35
Filed: 1991-06-28
Abstract: Use of cpds. (I)-(III) isolated from Streptomyces as antiviral agents is new. In the formulae R1 = R2 = H or R1 = OH and R2 = a gp. of the formula (a) and R = 1-6C alkyl. (Ia) (R1 = OH and R2 = (a)) (actinorhodin) is known from Chem. Ber. 83 (1950) 161-167; (Ib) (R1 = R2 = H) is known from Liebigs Ann. Chem. 1983, 471 and 510; (II) (deisovalerylblastmycin) is known from J. Antibiotics XXIX (1976), 804-808; and (III) (aureothin or mycolutein) is known from Tetrahedron 14 (1961), 252. USE/ADVANTAGE - (I)-(III) are esp. useful for the treatment of HIV infections. (I)-(III) do not have the side-effects of AZT.
Patent DE-4135378-A1 (DE)
Inventor: MUELLER MARTIN DIPL ING
IPC: F01M9/10
Filed: 1991-10-26
Abstract: The invention concerns a hydraulic control device for turning the camshaft (10) of an internal-combustion engine. A sprocket wheel (15) driven by the engine is linked, by means of a linkage element (20) and helical gearing (25, 26) plus straight-tooth bevels (22, 23), with the camshaft (10). Translational motion of the linkage element (20) produces relative rotational motion between the drive sprocket (15) and the camshaft. The translation motion of the linkage element is produced by a hydraulic piston (29) acted on by an axial-piston pump (36 to 40) which is located in the control device and which aspirates hydraulic fluid from a reservoir located in the engine and feeds it through outlet valves (50) to the pressure space (32) in front of the hydraulic piston (29). Connected to the hydraulic piston is an electromagnetically operated proportional-action pressure valve (65) which is controlled by appropriate actuation of the electromagnet, thus increasing or decreasing the pressure in the pressure space (32). Controlling the pressure in this pressure space causes the linkage element (20) and the camshaft (10) to rotate relative to the sprocket wheel (15).
Patent DE-4135591-A1 (DE)
Title: Prodn. of copies only readable under UV-A light - by using light-sensitive copying material based on cellulose@ substrate and cis-isomers of 4,4'-di:amino-stilbene 2,2'-di:sulphonic acid derivs.
IPC: G03C1/73
Filed: 1991-10-29
Abstract: In the prodn. of copies, which can be read only with UV-A light, from transparent originals, the light-sensitive copying material consists of a cellulose substrate (I), e.g. chromatography papers, machine-glazed, 70-140 g/sq.m, thin cellulose plates for thin layer chromatography (TLC), without fluorescent indicator, fine-fibre nettle cloth from bleached, unbrightened cotton or regenerated cellulose fibres, ca. 100/ g/sq.m, without optical brightener, or parchment paper, ca. 40 g/sq.m, without optical brightener; and a cis-isomer of 4,4;-diaminostilbene-2,2'-disulphonic acid derivs. of formulae (IIA-IIC) (where R = gp(a) in (IIA) and R = gp. (b) in (IIB) or mixts. of these. Sections of (I) are impregnated with 1-10 g/l aq. (II) soln. and dried. ADVANTAGE - Sharp copies are obtd. by a simple process and flash exposure can be used, since the cis-trans change is very rapid on cellulose. The latent image can be developed by washing out the unexposed areas of cis-isomer or erased completely by exposure. The legibility (150 test characters no. 1) is 50-70, i.e. latter sizes of 0.5-0.7 mm, and the resolution 8.8-6.3 (line pairs in mm).