baber/WOPTO huggingface dataset:
Patent DE-4118234-A1 (DE)
Inventor: WAGNER HERBERT
IPC: B29C33/02
Filed: 1991-06-04
Abstract: An aqueous external release agent for the production of tyres and of other rubber articles is described, which release agent contains 5 to 35% by weight of diatomaceous earth, 0.5 to 6% by weight of pyrogenic hydrophobic silicic acid, 0.1 to 2% by weight of non-ionic surfactant, 0.2 to 3% by weight of a binder, 0.1 to 3% by weight of colorant, 0 to 5% by weight of ethyl alcohol and the remainder water. Preferred binders are styrene/maleic acid or styrene/maleic anhydride copolymers and especially the ammonium salts thereof. These external release agents are used in processes for moulding and vulcanising tyres and other rubber articles, the release agent being sprayed onto the preform with the aid of air-atomisation pistols before moulding and vulcanisation are carried out. A very good release effect is thus obtained without the vulcanisation being impaired. Because only very small quantities of external release agent are required, cleaning of the compression mould and thus an interruption of the production process are necessary much more rarely than when using conventional external release agents.
Patent DE-4119342-A1 (DE)
Title: Isomerisation of alpha-ionone or beta-ionone to equilibrium mixt. - in homogeneous phase in presence of Gp=VIII-B metal salt in alcohol or N-methyl pyrrolidone, or in heterogeneous phase on alumina or alkali halide
Inventor: BECKER RAINER DR
IPC: B01J27/12
Filed: 1991-06-12
Abstract: Isomerisation of alpha-ionone or beta-ionone to the thermodynamic equilibrium between the 2 cpds. is at 60-300 (150-250) deg.C, (a) in homogeneous phase in presence of salts of a Gp. VIIIb metal, in alkanols or N-methylpyrrolidone, or (b) in heterogeneous phase in presence of alpha-Al2O3, gamma-Al2O3 or alkali halides. (a) Isomerisation is at 60-150 deg.C, in presence of salts of Rh, Ru or Ni, esp. in presence of RhCl3 hydrate, RuCl3 hydrated or (PPh3)3RuCl2 in a 1-5C alkanol, or of Ni acetonylacetonate in N-methylpyrrolidone. (b) Reaction is in presence of alpha-Al2O3 at 200-250 deg.C or of alpha- or gamma-Al2O3 contg. PdO, or at 100-200 deg.C in presence of a catalyst contg. KF on gamma-Al2O3. USE - Beta-ionone is a raw material for synthesis of vitamin A. Alpha-ionone and/or beta-ionone is a perfume and aroma.
Patent DE-4119381-A1 (DE)
Title: Ring spinning frame - has uncomplicated robotic mechanism to spin on following yarn break
Inventor: ENDRES JOACHIM DIPL ING
IPC: D01H15/00
Filed: 1991-06-12
Abstract: On a spinning frame, each unit is serviced by a robotic mechanism, so that when yarn is broken, the roving moving through the drafting rollers is drawn into a suction tube. The yarn from the cop is lifted by another suction unit on the robot, and an arm transposes it across the rollers of the drafting zone, to enable the unit to spin on. Pref. the roving (4) enters the drafting zone (2) at the roller pair (17) and in the event of a yarn break, the suction tube (3) draws the roving away from the output roller pair (15). The service mechanism (24) employs the suction tube (12) to lift the yarn (11) from the cop, and then the arm (13) which swivels at (A) on the cross bar (20) is driven by the controlled mechanism (18,19) to guide the yarn from one side or the other of the cots (26). The yarn then engages in the lappet guide (5) and spins on, drawing the roving (4) with it. A yarn shear is arranged to remove the trailing end. ADVANTAGE - The insertion of yarn into the drafting rollers is executed without complicated mechanisms, which are expensive.
Patent DE-4123463-A1 (DE)
Inventor: HUEBSER KARL DIPL ING
IPC: B22D17/14
Filed: 1991-07-16
Abstract: The proposal is for a process for producing castings by means of a diecasting machine (1) in which molten metal (6) is introduced into a filling chamber (9) from a reservoir (7) by means of adjustable pressure differences between the two and, after a filling and metering stage, a diecasting ram (14) presses the molten metal (6) into a hollow mould (5). In order to improve the quality of the casting over prior art processes, the process of the invention is characterized by the following steps: reduction of the pressure difference on completion of the filling and metering stage to one adequate to keep the head of molten metal in the filling chamber (9); maintenance of this reduced pressure difference ( DELTA p) for a predeterminable period of movement of the die-casting ram to fill the filling chamber completely; and subsequent increase in the pressure difference before the start of the mould filling stage.
Patent DE-4124620-A1 (DE)
Title: Disposal of hazardous waste e.g. asbestos - includes forming waste into concrete blocks opt. with colourants, water-glass or molasses
Inventor: KUSKE ERNST
IPC: B09B3/00
Filed: 1991-07-25
Abstract: A process is disclosed for the disposal of hazardous waste such as asbestos. The asbestos is finely comminuted, mixed with dry or liquid hazardous waste, and formed into a suspension with the addition of cement and water. This suspension is then formed into concrete products which comply with DIN B5. Additives such as colourants, waterglass or molasses are pref. incorporated in the suspension. These enable the products disposed of to be subsequently identified or controlled. The suspension can be produced in a rotating drum mixer in disused mine workings, to bond potentially harmful mine residues. The suspension is cast into blocks and then dumped. USE/ADVANTAGE - The object of the process is to provide a safe, common disposal method for hazardous waste of various types and origins, e.g. PCBs, chemical plant effluent, asbestos, etc., by forming the material into concrete blocks
Patent DE-4135495-A1 (DE)
Title: Equaliser for digital communication signals - uses transversal filter to adapt receiver for transmitted signals without use of test signal sequence
Inventor: FEYH GERMAN DR
IPC: H04L25/03
Filed: 1991-10-28
Abstract: The equaliser provides adaption of the communication receiver to match the transmittd signals, without using a test signal sequence, by using the mean values of successive communication pulses using a function of the second or fourth order. Pref. the received signal values are fed through a transversal filter (TF) with the filter coefficients obtained via interaction using a data processor (AK) reciving sampled values of the filter input and output signal (xn,yn). The transversal filter (TF) is pref preceeded by a complex low-pan filter (KTP) receiving the IF signal (U) multiplied with an orillator signal via a mixer (m). ADVANTAGE - Eliminates need for test signal sequence.
Patent DE-4136196-A1 (DE)
Title: Droplet collector and device for conducting fluid away - has one or more absorption surfaces with coating or consisting of open-pored capillary material
IPC: B64G1/50
Filed: 1991-11-02
Abstract: The absorption surfaces (A) are V-shaped, funnel-shaped or groove-shaped. A collection insert comprises fine-pore capillary material (FCS). An impeller pump (DP) conducts the collected fluid away. The pump is of the membrane type with several counterpoised or concentrically arranged cells, which one after the other are activatable with compressed air or hydraulic fluid. The cells enclose the open-pored, reversibly deformable capillary material. USE/ADVANTAGE - A droplet collector for use in a droplet radiator for removal of heat from coolants during space flight.
Patent DE-4138120-A1 (DE)
Inventor: EHLE JOACHIM
IPC: F27B3/08
Filed: 1991-11-19
Abstract: A melt-in aggregate has a furnace vessel (11) mounted on a furnace cradle (13) and closable by a lid (12), as well as stick electrodes (28) that can be lifted and lowered into the furnace vessel (119) by means of electrode lifiting means (30). The electrode lifting means (30) are supported on a portal (31). In a lowered position, the portal (31) lies on a support (33) of the substructure (14) of the vessel or cradle (13) and can be tilted in this position together with the furnace vessel (11). It may also be released from the furnace vessel (11) and swivelled aside by means of a lifting jack (43) of a stationary lifting/swivelling mechanism (40). When two vessels are arranged next to each other, the stick electrodes may be alternatively associated to the one or the other vessel by means of the lifting/swivelling mechanism (40).
Patent DE-4139551-A1 (DE)
Inventor: KIHN-BOTULINSKI MARTINA DR
IPC: C11D1/14
Filed: 1991-11-30
Abstract: A process for preparing powdery surface-active agent mixtures by spray drying aqueous suspensions of the ingredients should allow the normally used alkylbenzol-sulphonate to be replaced by alkylsulphate, without causing the spontaneous inflammation of the spray-dried goods but allowing pourable and flowable, non-clotting powdery products to be obtained. For that purpose, an amount comprised between 2 and 15 parts by weight alkylsulphate having the formula R<1>-OSO3X, in which R<1> stands for an alkyl residue with 10 to 20 C atoms and X for an ammonium ion possibly substituted by alkali, ammonium, alkyl or hydroxyalkyl, an amount comprised between 1 and 5 parts by weight alkylglycoside having the formula R<2>-O(G)n, in which R<2> stands for an alkyl residue with 8 to 22 C atoms, G stands for a glycose unit and n is a number from 1 to 10, the weight ratio between alkylsulphate and alkylglycoside being comprised between 8:1 and 1:1, and an amount comprised between 20 and 100 parts by weight of an essentially anorganic, phosphate-free excipient containing alkali carbonate and alkali alumosilicate in a weight ratio comprised between 2:1 and 1:3, are mixed with enough water to produce a flowable and pumpable mixture, which is then spray-dried using drying gasses at temperatures below 250  DEG C until so much water is removed that a powdery, pourable product is obtained.
Patent DE-4140406-A1 (DE)
Title: Aircraft guidance and navigation system - has read link with control tower so position of aircraft in vicinity of airport are displayed
IPC: G08G5/02
Filed: 1991-12-07
Abstract: The instrument landing system for use by aircraft has an onboard data processing facility with input/output units for sensors (5) coupled to a dynamic positioning module operates together with a graphics display processor accessing a ROM data base (11). This provides input to a head-up display (15). Flight data is entered into memory via a data link. Actual location of the aircraft on the runway is indicated (14) in the form of screen layout. A data link (12) exchanges information with the control tower. ADVANTAGE - Improved system performance in adverse weather.
Patent DE-4142078-A1 (DE)
Title: Yarn tension regulator - has bow spring tension and sensor to indicate loss of yarn, not affected by dust and lint
Inventor: BOSSARD ERWIN
IPC: B65H63/032
Filed: 1991-12-19
Abstract: A yarn tension regulator includes means for identifying the presence of yarn to indicate a broken or misdirected thread. Contained within a housing is a bow shaped flat spring pressing against a swivel lever with a forked end, to support the yarn. A casing (6) has two sides with cross rivets (33) and supported on a cross rail (16) to which it is attached by the screw (12). A flat plastic spring (20) is bowed between 90 and 180 deg., with one end held in the notch on the swivel (24) the other end in the adjuster (21). A gap (10) beneath the case allows a screwdriver to regulate the position of the adjuster (21) and spring. The adjuster swivels on the pin (22) held in the side plates. Similarly swivelling on the pin (25) the head (24) of the arm (3) contains a small permanent magnet, which aligns with a Hall probe (4). If the spring forces the arm (3) in direction (x) this maybe that the yarn (2) which passes under the guide pins (13,14), has failed to enter the fork (15) at the end of the arm (3), or is broken. The magnet leaves the location of the probe, which is suitably connected to an electronic alarm system. The arm (3) is able to rise, as there is a gap (9) in the front of the casing. ADVANTAGE - The tension is not affected by fly dust and lint, is eaily cleaned, and can quickly be adjusted.
Patent DE-4142144-A1 (DE)
Title: Determining the operating states of electron beam machines - by applying check voltages and comparing the response with given function values
Inventor: DOBMEIER ULRICH
IPC: H01J37/304
Filed: 1991-12-20
Abstract: The method is concerned with determn. of the operating states of electron beam machines. Various operating states of the electron beam machine (1) and/or functions of its individual elements are induced by application of check voltages. The resulting measurement values are established in each case and are pref. related a function which documents the operating capability of the electron beam machine (1). USE/ADVANTAGE - Can be used with electron beam machines employed for welding and surface treatment. In contrast to known methods (each of which only partially covers the problem area), it allows the operating capability of such machines and functioning of their individual elements to be comprehensively established.
Patent DE-4201344-A1 (DE)
Inventor: BEHR ARNO DR
IPC: C07C67/347
Filed: 1992-01-20
Abstract: Described is a method of preparing branched-chain fattymatter by reacting unsaturated fatty acids or their esters with compounds containing active CH groups in the presence of metal-salt catalysts. The products are suitable for use in the manufacture of, for instance, lubricants and plastics additives.
Patent DE-4203254-A1 (DE)
Title: NMR probes contg. per:fluoro-tert.butyl gps. - for NMR spectroscopy and nuclear spin tomography
Inventor: KALBITZER HANS-ROBERT
IPC: G01R33/58
Filed: 1992-02-05
Abstract: New NMR probes (I) are substances contg. a perfluoro-t-butyl gp.. Pref. (I) are 4-(perfluoro-t-butyl)phenyl cpds. of formula (Ia) or prods. obtained by labelling biomolecules, monomers or polymers with (Ia): R = NCS or NHCOCH2X; X = halogen, esp. I. USE - (I) are useful for 19F NMR spectroscopy and nuclear spin tomography, e.g. to study structural changes, enzymatic processes or molecular, interactions in biological systems, polymerisation processes, etc.. Antibodies labelled with perfluoro-t-butyl gps. are esp. useful for localising tumour or abscesses.
Patent DE-4204785-A1 (DE)
Title: Compact air conditioning system for motor vehicle - has flat profile unit under inside roof space with vents to front windscreen and to inside compartment
Inventor: MAYER HELMUT
IPC: B60H1/00
Filed: 1992-02-18
Abstract: The flat profile air conditioning unit has a flat heat exchanger (2) for cooling or for heating. The airstream is blown from the rear edge and split into upper and lower air streams, each side of the heat exchanger. The upper air stream is ducted to the top edge of the front windscreen. The lower air stream is ducted to the inside of the vehicle via grilles and to the side windows via side vents. The unit can incorporate a condenser for a cooling system. The air is drawn in via entry grilles over the rear windscreen and is blown by radial fans. Solar heating/power panels can be included on the roof. ADVANTAGE - Compact mounting, distributes air into comfort zones around head and shoulders area.
Patent DE-4207480-A1 (DE)
Title: Exhaustion dyeing esp. of cellulose@ - using recycled dyebath contg. salt which is neutralised and made up with salt, reactive dyestuff and water before reuse
Inventor: HOFFMANN FREDGAR DIPL PHYS DR
IPC: C09B62/36
Filed: 1992-03-10
Abstract: In dyeing materials contg. OH and/or amide gps. with dyebaths (I) contg. reactive dyestuff(s) (II) and salt by the exhaustion process by re-using a bath for previous dyeing without further purificn., (a) the spent alkaline (I) is neutralised with acid, treated with the required amts. of salt and (II) for the next dyeing and made up to the correct vol. with water; and (b) the new formulation is such that any loss of colour strength in later dyeing is compensated by increasing the salt concn. of (I) and/or increasing the amt. of (II) and increasing the alkali content. Pref. (II) is an azo, anthraquinone, formazan or triphenodioxazine dyestuff. Each (I) combination has the same (I) and/or salt compensation. Dyeing is carried out at 40-130 deg.C and pH 6-12. USE/ADVANTAGE - The process is used for dyeing cellulose materials (claimed). It saves salt and can be automatedgt
Patent DE-4207725-A1 (DE)
Title: Continuous packaging system for  groups of goods - has support elements for front and rear of each group in running direction during entire process.
Inventor: MARTI JEAN
IPC: B65B21/06
Filed: 1992-03-11
Abstract: After the goods have been grouped and before they are packed, the support elements (32,33) are moved into the interspaces between each individual group, with each two support elements associated with one group.  After the individual goods of one group are combined into one package unit, the support elements are removed from this unit and returned to the starting position. The front support element in the running direction moves from the side to in front of the relevant group, whilst the rear support element (33) in the running direction moves from above into the interspace. The goods move along on conveyor belts. ADVANTAGE - Fault-free processing without jamming.
Patent DE-4211488-A1 (DE)
Title: Fibre=optic ribbon cable with high density optical fibres - has fibres connected together in pile by intermediate layers with fracturing strength less than connecting medium
Inventor: OESTREICH ULRICH DIPL ING
IPC: G02B6/44
Filed: 1992-04-06
Abstract: The ribbon cable  has sections (BD1-BD4), each containing several optical fibres (LW1-LW4), held together in a pile. The optical fibres of each section are held together by a connecting material (VM1-VM4). The sections are respectively connected to each other by an intermediate layer (ZS1-ZS3). The intermediate layers are formed from a material whose fracturing strength is less than that of the connecting material which binds the optical fibres together in each section. ADVANTAGE - Has compact structure which permits higher packing density of strip conductors.
Patent DE-4211937-A1 (DE)
Title: Foreign body separator for cutting machines - has closable opening section allowing discharge without interrupting work process
Inventor: SCHUSTER SIEGFRIED
IPC: B07B13/05
Filed: 1992-04-09
Abstract: The closable opening section is a flap mounted in the slide wall where it can move about a rotary point and can be opened by the pressure of the foreign body. The opening part can be closed automatically by means of springs, weights, cylinders, eccentrics, levers once the foreign body has been discharged. The opening section can be closed by a pressure which is less than the max. opening pressure produced by the foreign body. The discharged foreign bodies are pref. collected up in a trough. ADVANTAGE - Autoamtic discharge of foreign bodies without stopping the material flow.
Patent DE-4214819-A1 (DE)
Title: Underpass sidewalls with recesses - involves side faces of trapezoidal form to give illusion of distance
Inventor: EISTERT THEODOR
IPC: G09F19/22
Filed: 1992-05-05
Abstract: The tunnel of an underpass for motor vehicles has recesses (1, 3) formed in its side walls. These recesses have two vertical faces which meet on a vertical line to form a triangular horizontal cross-section. The floor of the recess slopes upwards in the inward direction whilst the ceiling of the recess slopes downwards in the inward direction. The vertical faces are thus of trapezoidal form. The trapezoidal faces give the illusion of distance to the drivers of vehicles using the underpass. The transition from the unrestricted vision when driving above ground is thus made less abrupt and reduces the risk of accident during the time required to become used to the different driving conditions. USE/ADVANTAGE - Walls of underpasses designed to reduce the risk of accident.
Patent DE-4216878-A1 (DE)
Inventor: NARAYANAN PALLASSANA V
IPC: C08J7/04
Filed: 1992-05-21
Abstract: Polymeric surfaces of medical devices are provided that have enhanced biocompatibility properties. The biocompatibility enhancing agent which contains acid groups is secured to the polymeric substrate by a spacer molecule containing amino groups which is covalently bound to the internal polymeric surface which had been subjected to radiofrequency plasma treatment with a plasma medium of water vapor, oxygen or combination of water vapor and oxygen gas. Internal polymeric surfaces are treated by using a very low pressure plasma medium. The spacer amine is preferably albumin, urokinase, streptokinase or polyethyleneimine and the biocompatability enhancing agent is preferably heparin, hirudin, hyaluronic acid, streptokinase or urokinase. The polymeric surface presents an anti-thrombagenic, fibrinolytic or thrombolytic interface with body fluids such as blood flowing through medical device tubing during implantation for medical procedures.
Patent DE-4220971-A1 (DE)
Title: Fingerprint scanning system for identity checking - has optical beam reflected off surface of finger to be received by CCD array providing signals for Fourier transformation
Inventor: HAMADA TOSHIO
IPC: A61B5/117
Filed: 1992-06-26
Abstract: The finger print scanning system has the surface of the finger (11) illuminated by a light source (15) that passes through a prism (13). The light is reflected back from the surface and is received by a CCD array (17). The peaks of the finger print pattern are detected as dark regions and the associated signals are stored in memory as a pattern of digital values. A two dimensional Fourier transformation is carried out to generate a spectrum pattern for the print.  This is compared with stored values. ADVANTAGE - Simple method of obtaining and using finger print data.
Patent DE-4228647-A1 (DE)
Inventor: PRIMISSER NORBERT
IPC: H05B39/04
Filed: 1992-08-28
Abstract: A free-running inverter for a load, especially a low-voltage lamp, with a series circuit of two controllable switches (10, 11) which interconnects both inputs of the inverter connected to a rectified a.c. voltage, a control voltage having to exceed a given threshold to operate the switches (10, 11); and a trigger component (21) connected to one of the two control inputs of the switches (10, 11), the trigger component (21) having a voltage swing which is greater than the threshold voltage of the switches (10, 11), and the voltage excursion giving the voltage range between the breakdown voltage and the level to which the voltage returns after the breakdown.
Patent DE-4228902-A1 (DE)
Title: Movable cutter for removing folds and bubbles from soft roofs - has cutter roller on carriage in front of front wheels, with latter running within cutting surface.
Inventor: STEINBACH STEFAN
IPC: E04D15/00
Filed: 1992-08-29
Abstract: The cutter roller (1) on a carriage is mounted in front of the front wheels, running within the cutter surface. The roller teeth (2) are so positioned that they engage sequentially the material to be cut. The roller rotates against the travelling direction of the carriage. There is a cut-off edge (9), which communicates the received cut material, which is then collected in a container (7), due to the axial rotation of the roller. The container filling level is visible through the holes of a level indicator (10). The roller is driven by a belt drive (4) from a motor (3). USE/ADVANTAGE - Universal application for different types of flat roofs.
Patent DE-4244655-A1 (DE)
Title: Rotating airlock for dosing material into pressure chamber
Inventor: STAPP GEORG
IPC: B65G53/46
Filed: 1992-05-06
Abstract: The material is dosed into the controlled pressure chamber by a rotating airlock with radial walls forming cells and sealed between two sealing plates (9). The edge of each sealing plate rubs over a sealing ring (13) in a recess groove (15) and with an elastomer ring (16) inside the groove to provide pressure for the seal.Two sets of seals are provided to form an enclosed area on the edge of the plate. This can be washed by a recirculating fluid system to keep the bearings clean.