baber/WOPTO huggingface dataset:
Patent DE-4125903-A1 (DE)
Title: Water-gel for plant nutrition - comprising polyacrylic acid and sodium hydroxide
Inventor: HAERING LOTHAR
IPC: A01G27/00
Filed: 1991-08-05
Abstract: Water-gel (I) comprises 0.1-5 (pref. 0.6-0.7)% polyacrylic acid with m.wt. of up to 4,000,000 and is neutralised with sodium hydroxide to a pH of 6.5-7.5. (I) is pref. reacted with other salt-formers, e.g. alkali metals, alkaline earth metals, NH4OH or amines. (I) is not neutralised. Other gel builders are used e.g. cellulose and its derivs. (esp. carboxymethyl cellulose), alginate, agar-agar, gelatin, pectin, polysaccharide, silicic acid or montmorillonite. USE/ADVANTAGE - (I) is used in plant nutrition (claimed). Plants can be fed for up to four weeks using (I).
Patent DE-4135386-A1 (DE)
Title: Two=stroke opposed piston Diesel engine -  involves outlet piston remote from crankshaft with shorter stroke than inlet piston
Inventor: FISCHER BERND
IPC: F02B3/06
Filed: 1991-10-26
Abstract: The two opposed pistons are connected to a common crankshaft via connecting rods. The rotary axis of the crankshaft intersects and crosses the rotary axes of the pistons. The crankshaft has three crank pins, the central of which is connected to the piston near to the crankshaft, whilst the other two outer pins, displaced through a crank angle of 180 deg. to that central, are connected to the piston remote from the crankshaft. This latter piston is the outlet piston (3), and in dia. is smaller than or equal to the inlet piston (2) and shorter in stroke. The main bearing pins (4b, 4c) of the crankshaft, or at least one of them, are arranged between the central (4a) and outer (4d, 4e) pins. The stroke of the outlet piston is shorter than the dia. of the outer crank pins, partic. that (4d) on the drive side. USE/ADVANTAGE - In a two-stroke diesel engine with opposed pistons, to achieve a high quality of scavenging, using low amounts of air, and leaving a low amt. of residual gas in the cylinder.
Patent DE-4140982-A1 (DE)
Title: Continuous mfr. of surface faced chipboard
Inventor: GRETEN BERNDT DIPL ING
IPC: B30B5/06
Filed: 1991-12-12
Abstract: The loose particles of fibre or chips (12) are mixed with a bonding agent and fed into the gap (15) between an upper (13) and a lower (14) endless metal press band (16).Simultaneously a layer of synthetic resin impregnated paper (17) is pressed onto the surface of the bonded mixt. of chips or fibres. Glass balls are projected through a nozzle (28) on an air stream against the surface (18) of the metal press band (13).The mixt. passes between two hot plates (25, 26) and then between the rear rollers (20) of the press.
Patent DE-4201100-A1 (DE)
Inventor: HERGT PETER
IPC: G05D7/01
Filed: 1992-01-17
Abstract: A device is disclosed for regulating the flow rate of a fluid circulated in a closed network of pipes by a centrifugal pump, in particular for regulating the circulation of water in a heating system. In order to adapt the regulator to the different operational states of the network of pipes according to the needs, without expensive regulating devices, a centrifugal pump is used whose pump characteristic curve (1) has a falling characteristic in the direction of the zero-flow rate.
Patent DE-4202365-A1 (DE)
Title: Planetary mechanism, drive, etc. - consists of balls and rotating rings, with contact points on straight lines at right angles to ring axis
Inventor: GUSAKOVSKY VLADIMIR GEORG EVIC
IPC: F16H13/08
Filed: 1992-01-29
Abstract: The four-link drive, esp. antifriction bearing (1) with supports, has guiding and guided links in the shape of coaxial rings. Rows of intermediate links in the form of balls in separators, are located between the rings. The pitch lines of the balls on the rings are located in parallel planes. Balls and rings are located, so that the contact points of each ball on a movable ring, are located on a straight line. This is at right angles to the rotary axis of the rings. The contact point on the support, which is formed by a mainly non-movable ring, is offset relative to the polar axis. USE/ADVANTAGE  - Planetary drive mechanism with increased reliability and long lifetime.
Patent DE-4208278-A1 (DE)
Title: Integrated optical component eg modulator or switch - provides polymer optical conductor running on polymer material filling positioning slanted trench at connection with glass fibre
Inventor: MAYER KLAUS-MICHAEL DR
IPC: G02B6/30
Filed: 1992-03-13
Abstract: The component includes an optical conductor (17) on a silicon substrate having an optical buffer layer with low refractive index. An anisotropic etching is carried out into the substrate, aligned to the light wave conductor aligned positioning trench (12). The positioning trench is filled in with a synthetic material (15) at the connecting side end area. The conductor stretches out on the synthetic material as far as a perpendicular to the axial direction fo the conductor running in the plane of the connecting end surface lying end surface (18) of the synthetic material. This end surface is outside a slanting end area (13) of the positioning trench. USE/ADVANTAGE - Eg for directional coupler, polariser or distributor. Enables self adjusting coupling of glass fibres or fibre arrangement on light wave conductor of optical polymer to be realised in simple way.
Patent DE-4214822-A1 (DE)
Title: Appts. for continuous determn. of oxido:reductase substrate(s) - contg. immobilised enzyme
Inventor: SCHUHMANN WOLFGANG DR
IPC: C12Q1/00
Filed: 1992-05-05
Abstract: Appts. for continuous determn. of substrates of oxidoreductase enzymes having O2, NAD, NADP or artificial redox mediators as acceptors comprises: a receiver (1) for standard solns., connected via a tube (2) with a sterilising filter (3) and hence with a sample injector (4); a manifold (5) connected via a tube (6) with the tube (2) between the receiver (10 and filter (3); a buffer soln. container (7) connected to the manifold (5) via a tube (ii) contg. an air bubble trap (12); at least one immobilised oxidoreductase enzyme located between the working electrode in the measuring cell (1) and the manifold; a waste soln. container (13) connected via tubes (14 and 14a) with the manifold (5) and measuring cell respectively; valves (V) between each of the standard soln. containers and the receiver (1), in each of the tubes (6,11 and 140 entering the manifold, and between the filter (3) and the junction between tubes (2) and (6); and a control device for controlling the pump (8) and all the valves according to a predetermined program. The tubes are plastics hoses. The tube (11) between the manifold and measuring cell has an oxidoreductase enzyme covalently immobilised on its inner surface. The measuring cell has a working electrode, a reference electrode, a counter electrode and potentiostat. A plastics (esp. polyamide) gauze bearing a covalently immobilised oxidoreductase is placed over the working electrode. For H2O2-forming or O2-consuming enzymes, the working electrode is a Pt, platinised glassy carbon, platinised graphite or Au electrode. For NADH- or NADPH-forming enzymes, the working electrode is a mediator-modified electrode with a potential below 200 mV (versus S,C,E.), esp. a polypyrrole-quinone-modified Pt or glassy carbon electrode or a mediator-modified carbon paste electrode. Alternatively, the measuring cell has photometric or fluorometric detector. ADVANTAGE - The appts. is simple than conventional continuous-flow injection systems.
Patent DE-4215423-A1 (DE)
Inventor: ERCKERT RICARDO
IPC: H03K3/023
Filed: 1992-05-11
Abstract: A Schmitt-trigger is idle except at the switching moments and has for this purpose two comparators (11, 13) with contrary behaviours. An upper comparator (11) which is responsible for the upper limit value of the Schmitt-trigger is idle below said limit value and attracts current above said limit value. A lower comparator (13) which is responsible for the lower limit value of the Schmitt-trigger is idle above said limit value and attracts current below said limit value. A RS-flipflop (15) whose S-input is connected to the output of the upper comparator (11) and whose R-input is connected to the output of the lower comparator (13) stores the change in switching state of the comparator having switched from the idle to the current-conducting state and furthermore switches the comparator having switched into a current-conducting state into an idle state as soon as said comparator has changed its switching state. The Schmitt-trigger is thus always idle, except during the short moments in which the switching state is changed.
Patent DE-4216464-A1 (DE)
Title: Use of opt. modified alkali-or ammonium humate(s) - to improve resorbability of hydroxy:apatite bone implants
Inventor: RIEDE URS PROF DR
IPC: A61K35/10
Filed: 1992-05-19
Abstract: Use of natural or synthetic, opt. modified ammonium or alkali humates (with a md. wt. of up to 50,000D), whose aq. solns. show no Tyndall effect and do not fluoroesce, for prepn. of medicaments for promotion of resorption of hydroxyapatite-based implants, is new. Agents contg. the humates are also claimed. The dotted line represents an opt. second bond; R1, R3, R4 = H or OH; R2 = CO or CH2; R5, R6 = H, OH or OMe; Provided that R5, R6 and R4 are not all H. USE/ADVANTAGE - The agents allow promotion of the resorption of hydroxyapatite implants without influencing the osteoconductivity of the implants. These implants have better pressure stability than tricalcium phosphate implants (which are often used due to their good resorbability properties). The implants are useful in bone transplant operations.
Patent DE-4218310-A1 (DE)
Title: New polyfunctional reactive symmetrical azo dyestuff and precursor cpds.
Inventor: HERD KARL-JOSEF DR
IPC: C09B62/507
Filed: 1992-06-03
Abstract: Polyfunctional reactive symmetrical azo dyestuffs which are bis(4-amino-3-vinylsulphonyl- or -(beta-sulphatoethylsulphonyl)-phenyl)-mono- or dis-azo cpds. of the formula A1-N=N-(D-N=N)n-A1 (I), are new. A1, = di=substd. phenyl gps. of formula (VIIA); n = 0 or 1; X = CH=CH2 or CH2CH2OSO3H; Y and R = H, 1-4C alkyl (opt. substd. by Cl, OH, CN, COOH, OSO3H, SO3H, SO2X or 1-4C alkoxy), allyl or benzyl (opt. substd. by COOH, OSO3H or SO3H); or Y = cycloalkyl (opt. substd. by OH, COOH or SO3H); or NR-Y = a satd. heterocycle; and D = a divalent (hetero)aromatic gp.
Patent DE-4221472-A1 (DE)
Inventor: BAHRMANN HELMUT DR
IPC: C07C29/16
Filed: 1992-06-30
Abstract: Mixtures of isomeric decyl alcohols are obtained by oligomerisation of propylene in the presence of deactivated zeolites as catalysts, separation of the C9 olefins from the oligomer mixture, hydroformylation of the C9 olefins to give C10 aldehydes and hydrogenation of the C10 aldehydes. The mixtures afford, esterified with phthalic acid, a mixture of isomeric didecyl phthalates, which are used as plasticisers.
Patent DE-4228383-A1 (DE)
Title: Ball joint for connecting piston cylinder units to structures - has specially designed socket to receive ball head with access for screwdriver and with secure engagement even under great force.
Inventor: MAURY HORST DIPL ING
IPC: F16F9/54
Filed: 1992-08-26
Abstract: A ball socket (16) has an outside surface (18) and socket channel (20). This channel has a channel axis (P-P), an insert opening (22), inner circumferential face (24), inner end support (26) and security elements (32). The ball socket (16) can either be made in one piece with the security cams (32) and/or have a passage (30) allowing a tool access to the ball head (10) in the socket (16). The ball head then has a tool engagement area (10b). The ball joint can be fitted on a piston cylinder unit such as a gas spring which can be attached to a superposed vehicle structure with a horizontally swivelling swivel member. The ball head for engaging with the ball socket can be prefitted on the superposed structure. The ball socket can be made from hard elastic plastics material. USE/ADVANTAGE - Simplified prodn. and fitting of ball joint for connecting piston cylinder units to structures using corrosion-resistant materials.
Patent DE-4237227-A1 (DE)
Inventor: WEICKERT HANS-J DIPL ING
IPC: B01F5/04
Filed: 1992-11-04
Abstract: Apparatus in which a gas and a liquid are rotated and swirled in a conical vessel (3) to absorb the gas into the liquid such that the gas:liquid saturation ratio exceeds the normal gas:liquid saturation ratio. The vessel (3) is pressurized, and the liquid is stored in a low pressure reservoir (18) before being transferred to the vessel (3). After passing through the vessel (3) the liquid is stored in a reservoir (6). The vessel (3) and the reservoir (6) are pressurized to approximately equal pressures. The liquid can be pre or further oxygenated at various points by coupling tunnel oxygenator devices into the apparatus at such points and coupling the gas supply to the tunnel oxygenator devices. The treated liquid is transferred from the storage reservoir (6) into bottles or similar containers which are then sealed in a gas-tight manner to preserve the increased gas:liquid saturation ratio during subsequent commercial transportation of the containers to consumers.
Patent DE-4238130-A1 (DE)
Title: Car lamp casing free from any sprue point on visual face - prepd. by two-part injection moulding process
Inventor: SAND HORST
IPC: B29C45/16
Filed: 1992-11-12
Abstract: A car lamp casing is produced with a visual protective cover in a two-part injection moulding process. One polymer shot is injected into a mould to form the main casing, and a second shot is injected to form an elastic protective member on the rim. Alternatively (or in addition) a polymer coating is injected on to the surface which is to be the visual face. The first polymer shot is injected from the side where light emerges. When this shot has sufficiently solidified the casing is demoulded and turned through 180 deg. about an axis at right angles to the direction of demoulding. It is then placed in a second injection mould and the second shot is injected so as to form the protective cover from the side opposite to that where the light emerges; the coating is thereby injected through an opening in the moulding wall on to a surface of the casing. The example shown produces a car rear lamp as seen from the illuminating side. Its main body (1) is given a protective transparent cover on that side; the casing (4) is ABS, with protection of (e.g.) polyurethane elastomer. In the first stage two (here) main bodies (4) are moulded and then laid in their mould, having been injected through the gate (13) on the light-emitting side. ADVANTAGE - A gate for the main body is on the side where light emerges. The covering which is injected is free from any sprue point on the visual face.
Patent DE-4300785-A1 (DE)
Title: Expandable caravan or trailer
Inventor: ZOSEL RALF
IPC: B60P3/34
Filed: 1993-01-14
Abstract: The caravan or trailer is expanded to about three times the original size by using sliding walls. The central section (3) has fixed walls and there is sliding shell section (1) on either side. At the corners of the walls of the central section are pulley wheels with a transverse axis, around which an endless belt runs. If the belt is driven around, the pulleys are rotated and threaded spindles rigidly attached to the sliding sections are screwed outwards, bringing the sections along. The whole mechanism is concealed from the interior by a partition. Very little torque is needed to perform this operation.
Patent DE-4301546-A1 (DE)
Title: Continuously transported workpiece surface testing arrangement
Inventor: REUSCHENBACH MATTHIAS DR RER N
IPC: G01N21/88
Filed: 1993-01-21
Abstract: The testing arrangement contains at least one video camera for detecting at least one part of the workpiece surface and an illumination device. The illumination device contains at least one linear projector for generating a line pattern on the workpiece surface. The line thickness and separation are less than the minimal surface aperture to be covered.The video camera (7) observes the line pattern from the side and is connected to a digitizer which is connected to a number of image evaluation processors via a video bus and data communications channel. The processors are controlled by an evaluation processor which evaluates their results.
Patent DE-4303489-A1 (DE)
Title: Thrust release bearing for friction clutch - has additional spring element to secure thrust release bearing parts without rattling
Inventor: RIESE WALTER DIPL ING
IPC: F16D23/14
Filed: 1993-02-06
Abstract: The thrust release bearing is joined to the main clutch via a snap fitting for simple assembly. The additional sprint elements (11) hold the system under constant axial pressure to prevent loosening when worn. The additional spring element is secured by notched profiles on the release bearing sleeve (9) and is formed by a wire loop pattern. ADVANTAGE - Compact assembly, secure grip for thrust release bearing, reduced rattles.
Patent DE-4304339-A1 (DE)
Title: Device for simplifying the installation (assembly) of electrical service (installation) articles such as switches, plug sockets and the like, especially of flush-mounted design
Inventor: PAWELLEK HANS GEORG
IPC: H02G3/14
Filed: 1993-02-13
Abstract: In order to simplify the installation of electrical service articles such as switches, plug sockets and similar apparatuses, especially of flush-mounted design, which are equipped with a perforated supporting plate on one of whose sides the electrical functional parts are mounted, which electrical functional parts project into a depression in a building wall in the installed state, the supporting plate areas which surround the perforation which is provided for the accessibility of the functional parts covering the opening edge region of the depression, an element is provided which can be placed onto the supporting plate, can be locked to it in a predetermined contact position and has a level (spirit level) which can be seen from the outside. The element has adjusting elements which project towards the supporting plate and engage in the supporting plate by means of recesses in the case of an element which rests against the free outside of the supporting plate. The level is arranged to be aligned in a predetermined manner with respect to the adjusting elements.
Patent DE-4305297-A1 (DE)
Title: Texturing pickle for semiconductors, and use thereof
Inventor: GRAFF KLAUS DR
IPC: G01N33/20
Filed: 1993-02-20
Abstract: The invention relates to a texturing pickle (texturing etchant) for semiconductor materials. The texturing pickle consists of a mixture of hydrofluoric acid (HF), nitric acid (HNO3) and acetic acid (CH3COOH) and serves for the detection of metallic impurities and lattice defects (dislocations) in the semiconductor material, especially in silicon. The composition of the texturing pickle follows the formula:  [CH3COOH] = B . exp (C . [HNO3]/[HF]) . (1 +/- A/10)     where B = 58.086, C = -0.06   and A  APPROX  1 for [HNO3]/[HF] </= 6   or A  APPROX  2 for [HNO3]/[HF] > 6. A texturing pickle of this type can be used to detect impurities of cobalt, nickel, copper, rhodium and palladium. Since the novel texturing pickle is free of chromic acid and of heavy-metal salts, it can be disposed of without additional cost and effort.
Patent DE-4307148-A1 (DE)
Title: Hydraulically damping rubber mount
Inventor: VERMAERKE FREDDY
IPC: F16F9/348
Filed: 1993-03-06
Abstract: Hydraulically damping rubber mount with two rigid end walls situated opposite one another in the axial direction and at least two chambers arranged axially in series and containing damping fluid, the dividing wall containing a continuously open through passage and, in addition, a pressure-dependent bypass passage. To provide a simple bypass and economical division, the dividing wall is of one-piece design and the bypass comprises openings and a one-piece elastic diaphragm that can be fastened in the dividing wall.
Patent DE-4309520-A1 (DE)
Title: Withdrawal-bearing coupling to clutch diaphragm spring - has removable distorting insert securing coupling circlip in collared member
Inventor: LASSIAZ PHILIPPE
IPC: F16D23/14
Filed: 1993-03-24
Abstract: The coupling transmits a tension load from a withdrawal bearing to a clutch diaphragm spring, having a coupling member (30) with collar acting against the spring on the opposite side to the bearing. Inside the sleeve portion of the member is a coupling circlip(40) distorting elastically in the radial direction and locking into engagement with the bearing. The circlip is positioned in the member by an open clip portion passing through a slot in the latter. A removable distorting insert(80) in the member holds the circlip in position in conjunction with the latter. The insert can be split and with a grip(81) protruding from the rear side, by which it can be pulled out. The grip can comprise an axial tongue inserted near the slot in the insert, and with a boss(84) at the free end for easy gripping. ADVANTAGE - Circlip will not work free during engine testing prior to the gearbox being fitted to it.
Patent DE-4313912-A1 (DE)
Title: System for protecting against theft
Inventor: BERNARD WILLI
IPC: B60R25/01
Filed: 1993-04-28
Abstract: The present invention relates to a system for protecting against theft, which system is intended in particular for motor vehicles and consists of at least one sensor (1) which detects an attempt at theft, and one electronic system (10) which processes the sensor signal in order to trigger a measure which at least makes theft more difficult. In order to provide a system for protecting against theft, which system makes it impossible, with an effect comparable to that of a mechanical steering wheel locking device, to use and drive, or control, the vehicle normally but at the same time does not require complicated installation for each securing process but instead can remain installed permanently without interfering with normal driving, it is proposed according to the invention that the electronic system (10) is connected to a triggering device (10) for an air bag (3, 3') in such a way that when an attempt at theft is detected by the sensor (1) an air bag (3, 3') is inflated which dimensioned such that it prevents normal use of the object to be protected. <IMAGE>
Patent DE-4316846-A1 (DE)
Title: Chair seat
Inventor: ERKER CHRISTIAN
IPC: A47C7/18
Filed: 1993-05-19
Abstract: Upholstered seats are producible, in conventional processes for the covering of a base material with covering material and foam insert, only by hand, rationalisation or automation scarcely being possible. The process developed by me involves pressing the cushion insert between two plates, so that the cushion emerges from holes in the upper plate, and makes possible:     1. fully automatic production;   2. replacement of worn covering materials; 3. use of smaller pieces of leather (utilisation/avoidance of remains); 4. production of concavely shaped seats without any great expense.
Patent DE-4328711-A1 (DE)
Title: Method and device for testing elongated objects having a cross-section which deviates from the circular shape
IPC: B21C51/00
Filed: 1993-08-26
Abstract: A testing head (11) through which an object (17) to be tested passes has at least one testing probe (18) which is guided around the object to be tested on an orbit. Seen in the direction (16) of passage of the object (17) to be tested, the shape of the orbit of the testing probe (18) deviates from the circular shape. The driving of the rotor (15), which guides the testing probe (18) on a circular track and whose axis of rotation can be tilted with respect to the direction (16) of passage, is performed via a belt drive (13) which runs in a transmission element (12) which carries the testing head (11) and connects it to a drive unit (14) arranged to the side on a baseplate (20). <IMAGE>