baber/WOPTO huggingface dataset:
Patent DE-3719989-A1 (DE)
Title: Method and device for dressing an abrasive element (wheel)
Inventor: LIERATH FRIEDHELM PROF DR SC T
IPC: B24B53/04
Filed: 1987-06-15
Abstract: The aim of the invention is to achieve high removing rates in rough grinding by suitable dressing of the abrasive element and hence to increase the effectiveness of the grinding. The object of the invention is to provide a method and a device which make it possible to produce, for the rough grinding, an optimal working profile of the abrasive-element cutting face and at the same time to minimise the dressing times and the technical complexity of the dressing. According to the invention, the object is achieved in that for the dressing of the cutting faces of the abrasive element for rough grinding in a multi-step grinding process, the adjustment of the dressing advance and the dressing feed is carried out such that a degree of overlap of less than 1 results and that after a first dressing stroke, a further dressing stroke with the same dressing advance and the same dressing feed takes place, the engagement of the dressing tool, upon each following dressing stroke, on the abrasive element being offset by a ratio of (sd)/n with respect to the preceding engagement of the dressing tool on the abrasive element. <IMAGE>
Patent DE-3725390-A1 (DE)
Title: Switching protection device
Inventor: STAERK KLAUS DIPL PHYS
IPC: H02H3/087
Filed: 1987-07-31
Abstract: The invention relates to a switching protection device for protecting electrical circuits, which protection device uses a fuse link and a circuit arrangement as well as two transistors. One transistor is connected such that it is switched on in the normal switching-on process, while the other transistor is switched off. In the event of an overcurrent or an overvoltage from the mains power supply, the second transistor switches on in the case of the switching protection device (which is bipolar overall), as a result of which the first transistor is switched off. In the event of the transistors being destroyed in the form of having a high impedance, an irreversible disconnection process is provided, and in the event of destruction in the form of low impedance, the fuse link comes into operation, so that an optimum protection function is achieved.
Patent DE-3727469-A1 (DE)
Title: Electrical heating torpedo with temperature control
Inventor: HILLINGER ERICH
IPC: B29C45/30
Filed: 1987-08-18
Abstract: The heating of heating torpedoes for tools and machines processing plastic is preferably performed by means of heating cartridges in which there is arranged a helical heating conductor embedded in highly compressed metal oxide. The very narrow tolerances in the operating temperature which apply in the processing of plastics require special controllers or temperature limiters, which of course represent additional expenditure. In addition, the construction of the torpedo must be designed such that all the parts which are in direct contact with the plastics composition are of the same temperature as far as possible. It is the object of the present invention to provide a heating torpedo which manages without any special complex control devices and in which exceeding of the permissible maximum temperature is reliably avoided with at the same time uniform heat distribution. This object is achieved according to the present invention by one or more PTC elements being mounted within an inner casing of highly heat-conductive metal in compressed metal oxide, which casing bears with its entire surface directly against the inner wall of the outer casing of the torpedo.
Patent DE-3729439-A1 (DE)
Title: Weighing machine for flowable material, in particular liquids
Inventor: WUERSCHUM MARTIN
IPC: G01G17/04
Filed: 1987-09-03
Abstract: A weighing machine for flowable material, especially liquids, is proposed, which is provided with at least one container (15) receiving the material to be weighed. The material is delivered via at least one delivery conduit (32, 33) to the container (15), which is guided vertically displaceably on a holding device (10). A weighing cell (23) is fixed to one of the two regions which are displaceable relative to each other and adjoins vertically a counter-mounting (24) fixed on the other region. At the lower end of the container (15), an outflow conduit (53) provided with a shut-off valve (50) is provided. This weighing machine allows the determination of very precise weight components of different types of material to be weighed in a very simple and rapid manner, especially also fully automatically, by the use of a low-cost, commercially available weighing cell. <IMAGE>
Patent DE-3729500-A1 (DE)
Title: Device for fault-finding in electronic circuits
Inventor: FUNKE DIETER DR ING
IPC: G01R31/315
Filed: 1987-09-03
Abstract: The invention relates to a device for fault-finding in electronic circuits which has an inductive probe, with which an impressed test current can be traced in the electronic circuit as far as the fault location. In order to achieve a rapid and reliable localisation of faults, the test current has a square-wave form, by means of which a phase-related evaluation for determining the direction of the fault current is made possible. The device may chiefly be used in automatic test devices for electronic modules. <IMAGE>
Patent DE-3734850-A1 (DE)
IPC: A01F15/07
Filed: 1987-10-14
Abstract: In the formation of tied rolled crop bales (R), the period of time between the closing of the tying means on the circumference of the rolled bale, the ejection of the rolled bale and the closing of the press chamber is critical, because the crop fed continuously in large quantities should not disrupt either the final tying or the ejection. With the new method and the apparatus suitable for carrying it out, a time buffer for this phase will be provided, without any appreciable outlay in terms of the construction of the apparatus. For this, intermediate storage is carried out in two steps one after the other, in the first step the crop also being compressed in the feed channel, and in the second step up to the closing of the press chamber the crop also being stored intermediately in the press chamber, each time being separated from the rolled bale. For this purpose, the apparatus has a press roller equipped with press blades and located in the feed channel, and a separating element (T) which, in a build-up position, can be moved with the crop (G) through the inlet (8) into the press chamber (4). 
<IMAGE>
Patent DE-3736347-A1 (DE)
Title: Delay circuit
Inventor: MERKLE PAUL
IPC: H03K17/284
Filed: 1987-10-27
Abstract: The delay circuit according to the subject matter of the invention is a special delay circuit with control input c and feedback. If this delay circuit is operable, the output b has H potential for as long as the control input c is activated with H potential. The control input c must be activated with H potential before the input a changes from H potential to L potential. <IMAGE>
Patent DE-3736534-A1 (DE)
Title: Leaf of a disc filter sector
Inventor: KOHONEN RAIMO
IPC: B01D33/00
Filed: 1987-10-28
Abstract: Leaf (6) of a disc filter sector, consisting of a flow-permeable hub with flow-carrying ducts located therein, and of a screen fixed on the hub, which admits the filtrate but, e.g. retains the fibre cake on its surface. One drawback of the existing disc filters is that the fibre cake does not readily detach from the surface of the leaf (6) which results in a reduction of the capacity of the disc filter. This drawback is overcome in the invention by there being arranged, above the screen, on both sides of the leaf and on at least one leaf edge, a strip (7) projecting from the plane of the screen, in order to facilitate scraping the cake off the surface of the leaf (6) in the discharge phase. <IMAGE>
Patent DE-3737151-A1 (DE)
Title: Two-leaf door
IPC: E05C7/04
Filed: 1987-11-02
Abstract: Two-leaf door having a fixed leaf and a through-passage leaf, which, with the aid of a closure-sequence regulator, are moved into the closed position in the order fixed leaf/through-passage leaf and exhibit a locking device which, in particular, can be opened manually and is designed, with the effect of simplifying and producing one of the leaves in as economical a manner as possible, such that it can be actuated, for the two leaves, exclusively from the through-passage leaf.
Patent DE-3737438-A1 (DE)
Title: Mandibular denture and method of producing it
Inventor: AICHHORN WILFRIED
IPC: A61C13/07
Filed: 1987-11-04
Abstract: The mandibular denture with a denture plastic body receiving the artificial teeth and a support layer whose shape is adapted to the individual mandible is characterised for improved durability and tolerability in that the support layer is made of a permanently soft natural rubber which is bonded via a connecting layer, preferably a metal plate, to the denture plastic body. According to the method, an impression of the mandible is used to produce a model of the support layer on whose upper side a thin metal plate is formed, and thereafter the support layer is built up on the underside of the metal plate and connected thereto. Thereupon, an impression of the denture plastic body placed on the individual mandible and comprising the support layer and the metal plate is made and bonded to the upper side of the metal plate.
Patent DE-3739069-A1 (DE)
Title: Security device on a vending machine
Inventor: GRUENIG DIETER
IPC: G07F1/02
Filed: 1987-11-17
Abstract: To secure a vending machine against use by persons unauthorised for this, the insertion slot (4) for the coinage is covered by the pivotable bolt (8) which is connected to the lock (5). Authorised persons have an appropriate key which, when turned, releases the slot (4) for the insertion of a coin. After the desired product has been extracted and the key has been turned back, the insertion slot is covered again. Expediently, the key can be withdrawn only in this initial position. <IMAGE>
Patent DE-3739539-A1 (DE)
Title: Embossing apparatus suitable, in particular, for manual operation, for engraving symbols or the like into the surface of an article
Inventor: ARNIM LOTHAR VON
IPC: B44B5/00
Filed: 1987-11-21
Abstract: The invention relates to an embossing apparatus for engraving symbols or the like into the surface of an article. It contains a housing (1) with an embossing die (2) which is mounted to be movable in and counter to the embossing direction (5). The back of the embossing die has an impact surface (9) which lies opposite the striking surface (10) of a striking piston (14) which is displaceably mounted in the housing. An expansion chamber (18) which, in the position of rest of the device, is filled with a pressure medium, is interposed between the striking piston (14) and the embossing die (2). It can be evacuated via a valve (19), designed as a break, the actuation of the valve being initiated by the displacement of the embossing die counter to the embossing direction. The striking piston (14) has a working surface (16) facing in the opposite direction to the striking surface (10) and capable of being subjected to the action of a working medium. When the expansion chamber (18) is filled with air, the piston (14) executes a striking stroke, so that its striking surface (10) impinges on the impact surface (9), as a result of which a type character (6) connected to the die (2) is able to impress a symbol into an article (7). <IMAGE>
Patent DE-3743339-A1 (DE)
Title: Electroacoustic transducer, particularly for underwater application
Inventor: REHBOCK ALFRED DIPL ING
IPC: H04R17/00
Filed: 1987-12-21
Abstract: An electroacoustic underwater transducer exhibits a resonator, preferably of piezoceramic, and a sound radiating plate coupled thereto. To generate large amplitudes of vibration of the sound radiating plate with little drive power from the resonator, a first piston having a large piston area is permanently connected to the latter and a second piston having a small piston area is permanently connected to the radiating plate. The two piston areas delimit a closed water-filled pressure space so that an hydraulic transformer, which converts the small excursion of the resonator into large vibration amplitudes of the radiating plate at the ratio of the piston areas is inserted between the resonator and the radiating plate.
Patent DE-3800364-A1 (DE)
Title: Method for recovering an analog signal from a digital signal, particularly for digital telephone devices, and circuit arrangement operating in accordance with this method
Inventor: NICOLLINI GERMANO
IPC: H04B14/04
Filed: 1988-01-08
Abstract: A method for recovering an analog signal (6) from a digital signal, preferably a PCM signal, particularly for digital telephone devices, in which method, in a first phase, a first reconstruction (9) of the analog signal (6) is obtained in a digital/analog conversion, an amplitude distortion component (7) decreasing with the signal frequency being introduced into the frequency spectrum, and in which a low-pass filtering is carried out with the aid of a filter (4), which is equipped with integrators and has a given cut-off frequency (ft), in a second phase. The said distortion component (7) is used for substituting the frequency response of one of the integrators of the filter (4). This simplifies the architecture of the circuit arrangement operating in accordance with this method so that the area covered by the integrated circuit and the power dissipation are reduced. <IMAGE>
Patent DE-3800620-A1 (DE)
Title: Valve coupling for connection of injection, puncturing and indwelling cannulas to syringes and tubing lines for use in human and veterinary medicine
Inventor: SCHIKORSKI MICHAEL M DR MED
IPC: A61M39/26
Filed: 1988-01-12
Abstract: Valve coupling for connection of injection, puncturing and indwelling cannulas to syringes and tubing lines for use in human and veterinary medicine, intended to be fitted into conical connections in the form of a conical sleeve (1) whose narrower end terminates in a tip (3) provided with a slit opening. At its open end the valve coupling has an outwardly pointing edge reinforcement (4) with which it is elastically clamped in a corresponding groove (5) in the receiving conical sleeve provided with a rigid or flexible cannula. The inner cone which terminates in a tip has a bead-like reinforcement (6). <IMAGE>
Patent DE-3800883-A1 (DE)
Title: Package to receive scatterable and pourable products
Inventor: KRAUTTER HERMANN
IPC: B65D5/70
Filed: 1988-01-14
Abstract: The invention relates to a package (1) made of cardboard or the like in a cuboid shape to receive scatterable and pourable products, consisting of a blank with side surfaces (2, 2', 3, 15), onto which covering surfaces (4, 4', 14, 14') and bonding flaps (12, 13, 16, 16', 17) are moulded, a delivery opening (9), which can be closed by means of a lid (6), being arranged within one side surface (3) and adjacent to the upper covering surface (4, 4') to deliver the product. The upper part of the side surface (3) having the delivery opening (9) is designed as a sloping face (5) over its width (62), which sloping face is directed projecting obliquely downwards from the covering surface (4) and merges into the side surface (3). The delivery opening (9) can be closed by means of a pull flap (6) as a lid which can be lowered onto the sloping face (5). The sloping face (5), the side surface (3) extending as a continuation thereof, the adjacent side surfaces (2, 2') moulded onto the latter, and at least the upper covering surface (4) having the pull flap (6) as well as the pull flap (6) moulded onto said covering surface are integral constituents of the blank of the package (1). <IMAGE>
Patent DE-3801558-A1 (DE)
Title: Tube mail station
Inventor: WALTHER JUERGEN
IPC: B65G51/32
Filed: 1988-01-20
Abstract: The invention relates to a tube mail station having a housing which has an upper wall on which one connection piece is arranged in each case above two passage holes and a lower wall having two passage holes and downwardly leading connection pieces at the holes, there being rotatably arranged between the upper and the lower wall a rotary drum having an upper circular disc and a lower circular disc having in each case two aligned passage holes, and the holes of the upper circular disc being connected to the holes of the lower circular disc via tubes, there being situated between the lower wall (6) and the lower circular disc (29) and/or between the upper wall (5) and the upper circular disc (28) a rotary disc (18) rotatable about a vertical axis (17). <IMAGE>
Patent DE-3803818-A1 (DE)
Title: Device for contactless optical distance measurement in accordance with the static triangulation method
Inventor: KOPPERS MANFRED ING GRAD
IPC: G01S7/481
Filed: 1988-02-09
Abstract: Device for contactless optical distance measurement in accordance with the static triangulation method with power supply and measuring instrument, laser in the power supply and, on the one hand, laser beam extractor and, on the other hand, lens with a focal length of f and measurement beam pickup in the measuring instrument. The distance to be measured corresponds to about twice the focal length 2f. Power supply and measuring instrument are optically connected by a plurality of optical fibres in the form of glass fibres and/or plastic fibres. In addition, a measurement beam receiver with a plurality of receiving elements, for example photodetectors in the form of photodiodes, is provided on the image side at a distance of about twice the focal length 2f. The measurement beam receiver is also arranged in the measuring instrument, the spatial coordinates (length, height, width) of which are all smaller than the focal length f. In the measuring instrument, a plurality of deflection mirrors, the distances of which complement each other to form about twice the focal length and which are set up both for the deflection of beams close to the axis and for the deflection of beams remote from the axis, is arranged in the beam path of the measurement beams between lens and measurement beam receiver. At least one of the deflection mirrors, preferably the one in front of the measurement beam pickup, is constructed as translating convex mirror. <IMAGE>
Patent DE-3809255-A1 (DE)
Title: Process for the recovery of nontextile absorbent materials such as shredded cellulose and/or gel-forming granules or powder from the production scrap from the manufacture of cellulose hygiene articles
Inventor: STEFFENS BERT
IPC: D04H1/4258
Filed: 1988-03-19
Abstract: In brief, the invention introduces discontinuous and continuous processes for the recovery of nontextile absorbent materials, such as shredded cellulose and/or gel-forming granules or powder, from the production rejects from the manufacture of cellulose hygiene articles, such as disposable nappies, sanitary towels, sick-bed underlays or the like, with separation of the textile coatings of such cellulose hygiene articles, such as plastic films, tissue, adhesive strips, elastic tapes, adhesive paper or the like, such cellulose hygiene articles being treated, precomminuted as a material mixture, in a preferably turbulent working airstream, in a working space composed of a screen surface or a plurality of screen surfaces and the nontextile absorbent materials passing with the air through the screen orifices of the working space into a discharge space and being there disposed of and the textile coatings remaining in the working space and being discharged there.
Patent DE-3816111-A1 (DE)
Title: Container closure for drop-by-drop dispensing of liquid container contents
Inventor: DEUSSEN HEINO
IPC: B65D47/18
Filed: 1988-05-11
Abstract: A container closure for drop-by-drop dispensing of liquid container contents, for example medicament, has a closure cap (56) which is to be mounted in a sealing manner on the container outlet, and a dropping insert (1), to be mounted in the container outlet, with a liquid outlet opening (55) arranged in the edge region and a central air inlet arrangement (7). In order to achieve easy dropping and drops which reproduce well, it is envisaged that the liquid outlet opening (55) is screened at least towards the circumferential edge of the dropping insert (1). An axially outwardly extending tubular liquid guiding element (56) is preferably provided, which screens the liquid outlet opening all around. The air inlet arrangement has an axially inwardly directed tubular or chamber-shaped air guiding element (7) which is closed towards the container interior by a closing wall which has the air inlet opening (9), and into which a sealing pin (39) projects, which is mounted in the closure cap (56) and in the closed state engages in a sealing manner into the region of the closing wall (8). <IMAGE>
Patent DE-3830862-A1 (DE)
Inventor: WEHRMANN ROLF DIPL CHEM DR
IPC: B05D1/20
Filed: 1988-09-10
Abstract: Substrates coated with a very thin single or multilayer film of an organic polymer material have been found in which the polymer employed is a polyester having the structure 
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 in which A is the structure of an aliphatic, araliphatic or aromatic diol, B is the structure of an aliphatic, araliphatic or aromatic dicarboxylic acid, n is a value from 2 to 80, and at least one of the substituents R<1> to R<4> is an essentially normal- chain aliphatic radical, and each of the other radicals is hydrogen or methyl, the aliphatic radical having at least 8 C atoms, and it being possible for the bonding of the essentially normal-chain aliphatic radical to the structure A or B to also take place via groups containing hetero atoms, and, if two essentially normal-chain aliphatic radicals are on one structure, these being identical, and it furthermore being possible for R<1> and R<2> together and R<3> and R<4> together to form an alkylene chain. 
<??>Coated substrates of this type can be prepared by the Langmuir- Blodgett technique. The polyesters mentioned are novel intermediates for these coated substrates.
Patent DE-3835244-A1 (DE)
Title: Process for the polymerisation of vinyl chloride in the aqueous phase
Inventor: KLIPPERT HEINZ DR
IPC: C08F2/20
Filed: 1988-10-15
Abstract: The invention relates to a process for the preparation of homopolymers, copolymers or graft copolymers of vinyl chloride in the aqueous phase in the presence of at least one oil-soluble, free-radical-degradable catalyst and in the presence of a mixture of at least two suspending media and optionally in the presence of further polymerisation auxiliaries at from 30 to 80@C. The suspending medium mixture comprises at least one primary, water-soluble suspending medium and at least one secondary suspending medium. According to the invention, the water-soluble suspending medium contains a partly acetylated polyvinyl alcohol having the following properties: hydrolysis (saponification) number from 10 to 300, viscosity from 3 to 100 mPa.s (4 % by weight aqueous solution) at 20@C, absorbance (extinction) of UV light at 320 nm of >/= 0.18 (0.1 % by weight aqueous solution). The polymers produced have a favourable combination of properties which cannot be achieved by the previous prior art.
Patent DE-3836436-A1 (DE)
Inventor: FROIDEVAL PATRICK
IPC: B65G47/84
Filed: 1988-10-26
Abstract: Device for turning an elongate article such as, for example, a folding box, during transport by 90 DEG  by means of a chain (2) running in the longitudinal direction, which has carriers (3, 4) for transporting the article (1) lying thereon in the longitudinal direction. A further, inclined chain (8) is provided on which downwardly protruding fingers (9) are provided which engage with a longitudinal side wall (10) of the article (1) in the front portion of the latter, and thereby turn the article. A further transport chain (5) can be provided for further transport, the carriers captives (6, 7) of which continue the turning of the article. <IMAGE>
Patent DE-3839641-A1 (DE)
Title: Wood preservative
Inventor: GOETTSCHE REIMER DR
IPC: B27K3/52
Filed: 1988-11-24
Abstract: Wood preservative containing a quaternary ammonium compound, a water-soluble phosphoric acid and BCM, and methods for preserving wood from fungi using this wood preservative.