baber/WOPTO huggingface dataset:
Patent DE-3936800-A1 (DE)
Title: Plate-type  heat-exchanger - has double plates in sections spaced apart held in packet by pressure plates
Inventor: FUNKE KARL-HEINZ
IPC: F28F3/08
Filed: 1989-11-04
Abstract: The heat-exchanger comprises heat-transfer plates spaced apart and held together by pressure plates in a packet.  Heat-emitting and receiving media flow through alternate gaps between the plates. Double heat-transfer platese (12) each comprise two plates (14,16) fixed together and spaced apart. These are held together in a packet (10) by the pressure plates (6,8) seals (4) being fitted between them. USE/ADVANTAGE - Easy cleaning, or replacement of heat exchanger plates when corroded.
Patent DE-3938078-A1 (DE)
Inventor: BINEK MARTINA
IPC: C04B28/02
Filed: 1989-11-16
Abstract: The use of a mixture of 20 to 50 parts wt. of a metallic soap and 40 to 80 parts wt. of finely divided quartz sand to which 0.5 to 10 % wt. of an anionic tenside is added as an air pore former for mortars based on salt-containing sand gives the surfaces coated with this mortar high mechanical stability and long useful life despite the salt content.
Patent DE-3942337-A1 (DE)
Inventor: HIRSCH MARTIN
IPC: C22B7/02
Filed: 1989-12-21
Abstract: Steel works residues containing zinc and lead are worked up by thermal treatment in a circulating fluidised bed, the heat required being met predominantly by combustion of solid carbon in the fluidised-bed reactor of the circulating fluidised bed. A reducing fluidisation gas which contains virtually no free oxygen is passed into the lower part of the fluidised-bed reactor. The content of solid carbon in the lower part of the fluidised bed is adjusted to 5 to 30%. Oxygen-containing gases are passed into the upper part, and CO2 formation is permitted to continue only to such an extent that metallic zinc is not reoxidised. The discharged suspension is substantially freed from solid in a recycle cyclone, and the solid is recycled. The gas is cooled to a temperature at which the metallic zinc is oxidised to ZnO, and the dust-like zinc and lead compounds are deposited from the gas.
Patent DE-4000280-A1 (DE)
Title: Optical measuring, evaluating and documentation - ascertaining tension-expansion ratio of material by filming by camera and evaluating by computer
Inventor: ZIMMERMANN WOLFGANG PROF DIPL
IPC: G01N3/06
Filed: 1990-01-08
Abstract: The expansion of a sample rod is recorded by a camera as it is subjected to tension in a expansion or bending test machine. The developed film can be enlarged allowing possible measuring errors to be kept small. Separate frames of the film strip can be selected for documentation of special results and characteristics. A computer evaluates the expansion behaviour using the film provided. The computer can deal with a row of  measurements, e.g. using sensors measuring  changes in dimensions of the sample at various applied forces. ADVANTAGE - No mechanical measuring errors.
Patent DE-4011629-A1 (DE)
Title: Electric material vaporisation device e.g. for perfume
Inventor: SCHIMANSKI GEORG
IPC: A61L9/03
Filed: 1990-04-11
Abstract: The vaporisation device has a housing (1) containing an electric heating element, attached to a container (3) holding the material to be vaporised. A wick (4) depends into the container (3), for supplying the material to the heating zone defined by the electric heating element enclosing the wick (4), with an annular gap (5) between them. The heating element comprises a ceramics block (2) and a resistance heating coil embedded in a channel which extends tangential to the annular gap (5) at one side of the latter.
Patent DE-4012630-A1 (DE)
Title: Copolymer or graft copolymer with unsatd. per:fluoroalkyl monomer - and unsatd. per:fluoroalkyl-free monomer on dispersion of polyurethane contg. per:fluoroalkyl backbone, used as dressing
Inventor: ROETTGER JUTTA DIPL CHEM DR
IPC: C08L51/08
Filed: 1990-04-20
Abstract: Aq. dispersions of copolymers and/or graft copolymers from (a) ethylenically unsatd. perfluoroalkyl monomers and (b) ethylenically unsatd. monomers free from perfluoroalkyl gps., are prepd. by polymerisation in presence of aq., emulsifier-free polyurethane dispersions as graft backbone, based on (c) cpds. contg. perfluoroalkyl gps. and with active H, (d) cpds. contg. ionic and/or nonionic hydrophilic gps. and with active H, and (e) polyisocyanates.
Patent DE-4017678-A1 (DE)
Title: Rocking bed for therapeutic treatment - has vertical shaft with end face cam running over fixed roller
Inventor: BELLMANN HANS DR
IPC: A61G7/057
Filed: 1990-06-01
Abstract: The mechanism  is for imparting a rocking motion to the mattress of a hospital bed for therapeutic purposes.  The mattress (6) is mounted on a plate (64) which is supported on a thrust bearing (62). The thrust bearing is mounted on an end face cam (52) fixed to the upper end of a shaft. The shaft is attached to a motor (30) mounted on the base of the supporting structure by a coupling (36) which permits limited angular and axial movement of the shaft.  The end face cam (52) is in contact with a roller and as the shaft rotates a rocking motion is imparted to the mattress (6). USE - Therapeutic treatment by imparting rocking motion the mattress of hospital bed.
Patent DE-4018362-A1 (DE)
Title: Hand luggage compartment for commercial aircraft - has roller shutter fitted to access opening and luggage support racks
Inventor: ROESSNER BERND
IPC: E06B9/11
Filed: 1990-06-08
Abstract: The commercial aircraft has luggage racks in which the passenger's hand luggage can be placed. The rack is divided into compartments with the access opening being closed by a roller shutter. The roller shutter is constructed from elastically flexible slats (16). Each end of each slat is attached to a toothed belt (11) which passes around guide pulleys (12) mounted on the side walls of the compartment. USE/ADVANTAGE - The shutter eliminates the risk of luggage falling from the racks when the aircraft encounters bad weather.
Patent DE-4019559-A1 (DE)
Title: Isolating pure white caffeine from impure soln. - by acidification, contact with active carbon, crystallisation, washing and drying
Inventor: HOFMANN GUENTER DIPL ING
IPC: C07D473/12
Filed: 1990-06-15
Abstract: In isolation of a pure, white caffeine from an impure soln. contg. caffeine, esp. from the wash waters from re-extn. of CO2 which has been used under supercritical pressure for the extn. of substances contg. caffeine, esp. coffee beans, the wash water is acidified and them contacted with active C, the pre-treated wash water is evaporated to a concentrate, caffeine hydrate is crystallised out from the concentrate, and the crystallisate is sepd., washed and dried and calcined. Active C is added to the wash water as a powder, in amt. of 0.1-2 g/l and is filtered off before evapn.. Acidification is with H3PO4 to pH 2-4. Crystallisation of the caffeine hydrate is by cooling, and the mother liquor after the sepn. of the crystallisate may be used to adjust the pH. The caffeine hydrate is crystallised from the acid soln., and adherent acid is removed with cold water. The process may be continuous. ADVANTAGE - Recrystallisation is avoided, and caffeine suitable for pharmaceutical use is obtd..
Patent DE-4021049-A1 (DE)
Title: Water-sol. cellulose sulphate with high soln. viscosity - by heterogeneous sulphation of high mol. wt. cellulose with mixt. of propanol and sulphuric acid at specific temp.
Inventor: LUKANOFF BRIGITTE DR
IPC: C08B5/14
Filed: 1990-06-29
Abstract: A process is claimed for the prodn. of cellulose sulphate with high soln. viscosity (I), by heterogeneous sulphation of high-mol. wt. cellulose starting material (II) in a mixt. of propanol and sulphuric acid, opt. in the presence of toluene as dispersant; the novelty is that sulphation is carried out for 90-150 mins at (-) wo-10 deg.C with mol. ratio propanol:H2SO4 = (1:1.75)-(1:2) and bath ratio (sulphating mixt.);:(II) = (1:20)-(1:35), after which the reaction prod. is converted into an alkali salt by known methods and the water-soluble fraction is isolated. Pref. N-propanol is used for the above mixt.; (I) is produced as the Na salt, and (II) is added to a sulphating mixt. which, after its prodn., has been aged for 0.5-24 hrs. at -5 to 30 deg.C. USE/ADVANTAGE - The method provides a process for the heterogeneous sulphation of (II) under technically acceptable conditions, without pre-activation (contrast prior-art methods using aggressive and/or toxic reagents and/or involving difficult work-up procedures), and with much less redn. of chain length. (I) is useful as an auxiliary substance for biotechnical and medicinal applications.
Patent DE-4024197-A1 (DE)
Title: Wallpaper length or wall paper length collection - has repeat pattern which extends over at least two lengths for increased designpossibilities for large patterns
Inventor: ABEND WERNER
IPC: B41M3/18
Filed: 1990-07-31
Abstract: A wallpaper or wallpaper collection has pattern(s) applied in a repeat pattern. The wallpaper lengths are produced in a rotary printing process with similar or different patterns applied in a repeat pattern in the case of at least two lengths to be joined together. These lengths have, on the lateral boundary edges, patterns that are unsymmetrical to the edges and have similar or matching colours or shades of colour. ADVANTAGE - The direction of the colour and lines of the pattern continues over a large area during the hanging of the wallpaper lengths in such a way that the pattern repeat does not correspond to the size of a single length but extends at least over two lengths.
Patent DE-4026035-A1 (DE)
Inventor: BANASKIWITZ HORST
IPC: B65D1/24
Filed: 1990-08-17
Abstract: The invention relates to a bottle crate (1) with a framework having at least one insertion compartment (10), a bottle being insertable from above into each insertion compartment (10) and the bottle being surrounded in the insertion compartment (10) by compartment walls (13) and being held by at least one holding element (20), provided on at least one of the compartment walls (13). This bottle crate (1) is simple to produce by virtue of the fact that at least one compartment wall (13) has a wall section extending from the vertical centre line of the compartment wall, that the wall section is designed resiliently in a substantially radial direction with respect to the centre axis of the insertion compartment (10) and that the holding element (20) is arranged on this resiliently designed wall section at a distance from the vertical centre line of the compartment wall. <IMAGE>
Patent DE-4026738-A1 (DE)
Inventor: GRAEFER RAINER
IPC: A01B45/02
Filed: 1990-08-24
Abstract: The invention relates to a verticuor 1, in which the wheels 4, by means of which it is moved on the lawn surface 7, are arranged fixed in place on the housing 2. The knives 10, which are arranged on a knife shaft 8 driven to rotate by a motor 9, can be moved, via a rocker 11 on the ends of which they are mounted, in relation to the lawn surface 7 into a lifted-out position A1 or a working position A2. For this, there is an adjusting mechanism which allows a rapid lift-out or rapid transfer into the working position, but which also allows a depth regulation. The lifting-out takes place via a tension spring 23 which so loads a tension roller 18 that, via this and the belt pulleys 16, 17 of the motor 9 and knife shaft 8, a force is generated with the effect of reducing the distance between the knife shaft 8 and motor belt pulley 16. This measure allows an easy rapid lift-out at the turning points of the lawn surfaces to be tended. <IMAGE>
Patent DE-4035316-A1 (DE)
Title: Recovery of nickel@ from wastes esp. those from nickel plating baths - in simple, effective method without prodn. of damaging chlorine@ gas by=product
Inventor: KUEBLER EBERHARD DIPL ING
IPC: C25C1/08
Filed: 1990-11-07
Abstract: An electrolytic process for recovering Ni waste (I) is claimed esp. from Ni plating baths. In this method, an electrolytic cell is set up contg. I in the cathode compartment and there are anodes sepd. from one another and the cathode compartment by anion impermeable membranes (II). The analyte is an alkaline soln. (esp. NaOH) with concn. 0.1-2M and the II is a PTFE fabric coated with sulphonic acid copolymers. USE/ADVANTAGE - A simple and economic way of recovering I. The galvanic arrangement ensures that no environmentally damaging Cl2 gas is evolved. (0/1)
Patent DE-4036424-A1 (DE)
Title: Detecting device for contours in flat ground - detects and digitally stores mutually independent rotations of two measurement wheels
Inventor: HOSEIT HELMUT DIPL ING
IPC: G01C7/04
Filed: 1990-11-15
Abstract: The device has two measurement wheels (4) with parallel, possibly coaxial, rotation axes which turn independently as they are rolled over the ground and which are connected to a detection arrangement. The measurement wheel rotation angles are measured digitally and mutually independently by incremental rotation transducers.  The transducers are connected to an electronic unit (6) contg. a microprocessor, a non-volatile memory, a data interface and a display (7). ADVANTAGE - Enables rapid, accurate two-dimensional  digitisation of contours which are then available for further processing.
Patent DE-4039619-A1 (DE)
Title: Measurement of position radioactive source in space - uses four sensors with variable geometry to find exact source-to-sensor distances from calculation of energy decay in medium
Inventor: KONSCHAK KLAUS
IPC: G01T1/29
Filed: 1990-12-12
Abstract: A process to give bearings on a radioactive source measures the radiation impulse rate from 4 detectors placed within the range of the ionising radiation from the source.  The position of the sensors is varied according to a redn of error condition to assess the distances of the detectors from the source and enable calculation of coordinates. Pref the medium between the source and the detectors is homogeneous and allows the redn of intensity to be calculated.  The coordinates are pref calculated as time dependant functions of a source moved on tracks in a space. USE/ADVANTAGE - Used in nuclear medicine and engineering, isotope prodn military intelligence and civil defence. The  location of a radioactive source is in a convenient coordinate system without additional energy sources or equipment.
Patent DE-4040032-A1 (DE)
Title: Pressure diecasting filling bush prodn. - by hot isostatic pressing of tungsten alloy or ceramic lining or body
Inventor: HOFER BEAT
IPC: B22D17/20
Filed: 1990-12-14
Abstract: Prodn. of a filling bush for a pressure die casting machine involves lining the melt-contacting inside of a hollow steel cylinder with an at least 0.2 mm. thick W-contg. or ceramic protective layer by powder metallurgical hot isostatic pressing.  Alternatively, the entire filling bush is sintered by hot isostatic pressing of a metal powder, of compsn. 30-60% W, 0.5-5% Co, 0.2-20% Mo, 10-20% Cr, 2-10% V, less than 2.5% C and balance Fe, in a cylindrical metal die. The lining is pref. about 2mm thick and may consist of (i) an alloy of compsn. 80-99.5 wt.% W, 0.5-5 wt.% Co, 0.01-20 wt.% Mo and less than 2.5 wt.% C, (ii) an alloy of compsn. 30-60 wt.% W, 0.5-5 wt.% Co, 0.2-20 wt.% Mo, 10-20% Cr, 2-10 wt.% V, less than 2.5 wt.% C and balance Fe; or (iii) a ceramic selected from SiAlON, AlN, AlON or Al2TiO5. The lining or bush is pref.  hot isostatically pressed at at least 10 (pref. 100) MPa and at least 1200 (pref. 1300) deg. C. The total prodn. cycle time is about 9 hrs. the sintering time being 3 hrs.. ADVANTAGE - The filling bush has long term resistance to attack by molten Al or Zn and the lining is resistant to exfoliation.
Patent DE-4100992-A1 (DE)
Inventor: KUTKA ROBERT DR
IPC: H04N13/30
Filed: 1991-01-15
Abstract: The geometry of three-dimensional scenes may always be exactly reproduced independently from the size of the screen by mutually shifting corresponding image points, for example in stereo images, according to the size of the screen. The viewing angle during reproduction must coincide with the viewing angle during recording.
Patent DE-4103675-A1 (DE)
Title: Voltage increasing circuit producing erasing or control pulse potential
Inventor: RAUTER WILHELM
IPC: H02M7/10
Filed: 1991-02-07
Abstract: The circuit is supplied by an AC voltage input signal at two inputs. One component (1) consists of two capacitors (C1,C2) connected one behind the other, and a switch element (S1). The first connections (A11,A21) of the two capacitors are joined to one another via the switch component. The input signal is fed via two signal lines (SL1,SL2) to the second connections (A12,A22) of the two capacitors. Between the connections (A11,A21) of a capacitor connected to the switch element (S1) and the connections of the other capacitor connected to the signal lines an output voltage is applied, the amplitude of which is greater than that of the input signal.
Patent DE-4106147-A1 (DE)
Inventor: BECHER KLAUS
IPC: A45B19/04
Filed: 1991-02-27
Abstract: A sunshade, in particular a sunshade with stand, parasol, garden umbrella, and the like, has a frame, a canopy construction and a fabric. The ribs (5) are articulated to a shaft part (2) which supports a crown (3) and slides telescopically with the shaft (2). A runner (4) to which stretchers (6) are articulated slides along the shaft (1). The crown (3) and the runner (4) move in opposite directions when the sunshade is opened and closed. To facilitate opening of the sunshade and stretching of the fabric, an auxiliary stretcher (8) is articulated above the runner (4) between the shaft and at least one rib (5) and the runner (4) has a locking device (12) for stopping the runner in its upper position and stretching the fabric.
Patent DE-4112253-A1 (DE)
Title: Bearing with concentric inner and outer bearing rows - has outer row and inner row, outer races supported on elements, flexible in direction of smallest operating load
Inventor: HILLMANN REINHARD DR
IPC: F16C27/04
Filed: 1991-04-15
Abstract: A bearing unit, with concentric inner (4,8,9) and outer (3,5,6) bearing rows, assembled in individual inner (9,6) and outer (8,5) races, supports a shaft (2) in a housing (1). The outer row inner race (6) and inner row outer race (8) are supported on inner and outer support elements (18,24) respectively, arranged on opposite sides of the bearing unit. The inner and outer support elements are flexible in the directions of first and second components (F1,F2) of a smallest operating load (F). ADVANTAGE - The bearing unit can accommodate large tolerances in the individual components.
Patent DE-4116303-A1 (DE)
Title: Mixer chamber IC engine
Inventor: STAN CORNEL DR
IPC: F01L7/12
Filed: 1991-05-14
Abstract: The mixer chamber engine works in accordance with the Otto principle. The mixer chamber (6) is formed as a rotating shaft (7) and is associated with a cylinder (8). During rotation, the slots in the shaft open/close the connection channels to the cylinder. The engine is of the two-stroke type, with inlet (4, 5) and exhaust (3) ports at the lower end of the cylinder. The ports (1) connected to the mixing chamber are situated higher up towards the top of the cylinder. Fuel is injected (9) into the chamber and forms a fuel-rich mixture with exhaust gases before being released into the cylinder.
Patent DE-4119549-A1 (DE)
Title: Emptying of liq. separators, in separator system - where water is pumped from one separator into another operating in parallel, before first separator is emptied of sepd. material
Inventor: KESSEL BERNHARD
IPC: B01D17/02
Filed: 1991-06-13
Abstract: In emptying of separators in an system consisting of a number of separators operating in parallel, the cleaned water is pumped from the separator which is to be emptied into one of the other separators, and the separated contaminant/water mixtmm is then removed. The cleaned water is introduced into inlet section of the second separator. After emptying, the separator is refilled at least in part with water taken from one of the other separators. The system pref. consists of at least two separators whose inlets are connected to the waste water supply and whose outlets are connected to a drain channel. Each separator has a solid material collector and a separator section. Connection pipes (QA.QB) are provided between the separators (A,B) and link the separator sections (D) of each separator to the inlet section (U) of the other separator. A pump (15) is located in each pipe for transferring clean water from one separator to the other. A single supply pipe (23) supplies water to the separators via valved pipes (5,8), and the delivery ends of the connection pipes may be deliver water into these inlet pipes. The connection pipes are connected directly or by way of multi-way valves (27) to the pumps (15), and these valves have an operating position in which the suction pipe (17) from the sump of the separator section is connected via the pump to the connection pipe, and the rising pipe (18) is sepad from the connection pipe (20). The connection pipes may be rigid or be in the form of hoses with quick-release couplings. A stop valve or check valve is provided in each of the connection pipes. A control unit operates the pumps and valves on a time cycle. USE/ADVANTAGE - Used in the sepn. of contaminants, and esp fatty contaminants, from waste water. The cost of emptying the separators is reduced and the efficiency of use
Patent DE-4123853-A1 (DE)
Title: Aq. polymer dispersions, useful as binders for coating materials - are prepd. by two=stage emulsion copolymerisation of N-butyl acrylate] with other monomers, esp. N-methylol-(meth)acrylamide] and (meth)acrylamide]
Inventor: EINWILLER ANDREAS DR
IPC: C08F2/24
Filed: 1991-07-18
Abstract: Aq. polymer dispersions (I) are claimed; (I) are obtd. by emulsion polymerisation of a mixt. of (A) 50-99.5wt.% n-butyl acrylate; (B) 0.5-10wt.% N-alkylolamide(s) of 3-10C alpha,beta- mono-unsatd. acids or corresp. 1-4C alkyl ethers or monomer(s) with 2 double bonds, and (C) 0-49.5wt.% other mono-unsatd. monomers, in the presence of surfactants and radical initiators; the process is carried out at 0-60 deg.C, the polymer obtd. (II) has Tg (-10) to (-5) deg.C, and the polymerisation is carried out in 2 consecutive stages, involving polymerisation of 40-99.5wt.% of the total amt. of monomers in stage 1 and 0.5-60wt.% in stage 2, with addn. of the whole of monomer (B) in stage 2 and with n-butyl acrylate making up at least half of the monomers used in stage 1. Also claimed is the above process as such. More specifically, the monomer mixt. contains at least 75 (pref. 90-97.5) wt.% N-methylol- (meth)acrylamide and 1-5wt.% (meth)acrylamide; stage 2 is carried out with monomer (B) only, or with (B) and above 10wt.% (A) and/or (C) (at 0-30 deg.C), or with (B) and below 10wt.% (A) and/or (C) (at 40-60 deg.C). USE/ADVANTAGE - (I) are useful as binders for coating materials (claimed). W.r.t. prior-art materials, (I) enable the prodn. of coating materials with increased elongation at tear and low surface tackiness, and are therefore esp. useful in paint and plaster for use on cracked exterior surfaces
Patent DE-4124216-A1 (DE)
Title: Colour television signal transmission system - uses quadrature-modulated carrier for transmitting light density and sequential colour signals
Inventor: SEEGERT BERNHARD DIPL ING
IPC: H04N9/81
Filed: 1991-07-20
Abstract: The colour television signal transmission system uses quadrature modulation of a carrier signal (T) for transmission of the light signal (T) for transmission of the light density signal (Y) and the sequential colour signals, with frequency modulation of a further carrier used for recording the quadrature modulated carrier. Pref. the colour television signal is fed to a separation stage (1) dividing it into a light density signal (Y) and a colour mode signal (C), and fed to a demodulator (2) for providing the colour difference signals (R-Y,B-Y). The latter are fed to the quadrature modulator (3) together with the light density signal (Y). The quadrature modulated carrier (T) is fed to a FM modulator (4) before recording. USE - For camcorder system.