baber/WOPTO huggingface dataset:
Patent DE-3129893-A1 (DE)
Title: Method for producing a waveguide
Inventor: GRIMM WILHELM GEORD DIPL ING
IPC: H01P11/00
Filed: 1981-07-29
Abstract: In order to produce a dimensionally accurate, flanged, non-metallic waveguide with a low structural weight and having cohesive metallisation internally and at the ends, according to the invention, at least one of the flanges and the waveguide base body are produced separately from one another from a fibre-composite material, the base body being provided from its inner surface with a metal layer which is applied to a moulded core electrochemically and is bonded to the fibre-composite material while it is curing, and, after attachment of the end flange to the base body, the end of the waveguide is locally metallised (initially using chemical means and then electrochemical means) by a cohesive, metallic conductive layer which engages over the inner metal layer. In order to improve the adhesion of the subsequent, local metallisation, the reinforcing fibres are exposed (by removing the epoxy skin) at the ends of the waveguide, before the chemical coating.
Patent DE-3134508-A1 (DE)
Title: Optical fibre with an end surface which forms images anamorphotically and method for its manufacture
Inventor: WEIDEL EDGAR DIPL PHYS
IPC: G02B6/255
Filed: 1981-09-01
Abstract: On an optical fibre, in particular a single mode glass fibre, an end surface which forms images anamorphotically is attached in a simple and cost-effective manufacturing method, the said surface corresponding for example to the surface of a halved rotational ellipsoid. A fibre of this kind can be applied in many ways, for example in coupling arrangements between a semiconductor laser and an optical fibre. <IMAGE>
Patent DE-3135912-A1 (DE)
Inventor: ZOELLNER DIETER H DIPL CHEM DR
IPC: C25C7/02
Filed: 1981-09-10
Abstract: An axially displaceable electrode holder for use in fusion electrolysis, for holding active parts of self-consuming or of slowly self-consuming material by a screw nipple or the like. The electrode holder can have a cooling means with an inflow channel and a return channel and at least partially and preferably in its lower area a protective layer. On its surface a contact arrangement is provided by means of which the electrode holder can be detachably connected to the power supply, while on said electrode holder a plurality of electrical and/or mechanical contact sites are detachably disposed, are made of pressure resistant material, and extend at least over one part of the area of axial displacement of said electrode holder. This electrode holder is distinguished by high operational capacity, flexibility in handling and good electrical properties.
Patent DE-3137508-A1 (DE)
Title: Process and equipment for producing road-building asphalt mix material
Inventor: KESSLER WERNER DIPL ING
IPC: E01C19/10
Filed: 1981-09-21
Abstract: The process is used for producing flowable normal road-building asphalt mix material, to which, however, only a fraction of the otherwise required bitumen must be added during the production. This is achieved by means of breaking up an asphalt road surface into coarse lumps to give tabular large lumps, collecting and introducing the large lumps into a funnel-shaped, large melting oven with a coaxial vertical stirrer, a heating coil system, heat-insulated from the outside, in the oven wall and with a heatable retaining grate, underneath which a batchwise-operating horizontal wave mixer is arranged which is to receive and mix the molten asphalt mix material emerging from the lower outlet port of the large oven and from which mix material is conveyed by a continuous inclined conveyor into a heatable tall silo.
Patent DE-3139265-A1 (DE)
Title: Circuit for lamp testing, for incandescent lamps operated from AC voltage
Inventor: NEUHAUS KLAUS
IPC: H05B37/03
Filed: 1981-10-02
Abstract: The invention represents a circuit with whose aid all incandescent lamps which are operated from AC voltage, such as warning lamps, indicating lamps and general light signals, can be tested with respect to their function. The circuit is characterised in that the incandescent lamps are connected together by means of a four-diode combination in the case of full-wave operation and a two-diode combination in the case of half-wave operation, and nevertheless remain decoupled from one another.
Patent DE-3140723-A1 (DE)
Title: Method and apparatus for strand guidance
Inventor: HABELT WERNER DIPL ING
IPC: B29C48/04
Filed: 1981-10-14
Abstract: The invention relates to the field of the extrusion of thermoplastics. The aim of the invention is automation of the strand-pelletising process and reduction of the processing scrap. The object of the invention is restricted strand guidance for all extrudable thermoplastics. According to the invention, this is achieved by a method and an apparatus in which a melt discharged from an extruder is fed to a rotating cooling device having a horizontally lying shaft. The strands of the thermoplastic material are in this case cooled directly or indirectly and restrictedly guided. The invention is used with preference for the strand guidance of polystyrene, polyethylene and polypropylene, but can also be used for all other thermoplastics. <IMAGE>
Patent DE-3144311-A1 (DE)
Inventor: BACHL ROBERT DIPL CHEM DR
IPC: C08F4/68
Filed: 1981-11-07
Abstract: 1. A process for the preparation of a vanadium-containing catalyst component (1) for Ziegler catalyst systems, there being brought into contact with one another, (1.1) for the purpose of preparing catalyst component (1), (1.1.1) a particulate, porous, inorganic oxidic material (I) with a particle diameter of from 1 to 1 000 mu m, a pore volume of from 0.3 to 3 cm**3 /g and a surface area of from 100 to 1 000 m**2 /g and having the formula SiO2 . aAl2 O3 , where a is a number from 0 to 2, and (1.1.2) a solution (II) obtained by combining (IIa) 100 parts by weight of an alcohol of the general formula Z-OH, where Z is a saturated hydrocarbon radical of 1 to 8 carbon atoms, and (IIb) from 0.01 to 5 parts by weight (calculated as vanadium) of a vanadium trihalide, it being possible for halogen to be chlorine and/or bromine, a dispersion (III) being formed, with the proviso that the weight ratio of inorganic oxidic material (I) to vanadium in the vanadium trihalide (IIb) is from 1:0.01 to 1:0.2, and the dispersion (III) is evaporated to dry consistency, with the formation of a solid-phase product IV, at a temperature which is below 200 degrees C and above the melting point of the alcohol (IIa) used, wherein, in the preparation of the catalyst componente (1), (1.2) in an additional stage (1.2.1) the solid-phase product (IV) obtained in stage (1.1), and (1.2.2) an aluminium compound (V) which is dissolved in an organic solvent and has the general formula Al B3-p Yp , where B is a hydrocarbon radical of 1 to 18 carbon atoms, Y is chlorine, bromine, hydrogen or OR, R is a hydrocarbon radical of 1 to 12 carbon atoms, and p is a number from 0 to 2, are brought into contact with one another, with the formation of a dispersion (VI), with the proviso that the weight ratio of solid-phase product IV to aluminium compound (V) is from 1:0.05 to 1:10, the solid-phase product VII obtained as dispersed material thus forming the novel vanadium-containing catalyst component (1).
Patent DE-3149616-A1 (DE)
Title: Optical depolariser
Inventor: HILLERICH BERND DIPL PHYS
IPC: H04B10/25
Filed: 1981-12-15
Abstract: A fibre-optic depolariser, in particular, can be produced by means of a coupling point that can easily be produced between a monomode optical fibre and a multimode optical fibre.
Patent DE-3150798-A1 (DE)
Inventor: IVANFY BARTHOLOMEUS DIPL ING
IPC: B29C48/395
Filed: 1981-12-22
Abstract: 1. A thermoplastic, halogen-free, flame-resistant polymer mixture, particularly for cable sheathing having an elastomer component of ethylene copolymer or ethylene terpolymer with a proportion of at least 38 % od comonomer and a plastomer component containing at least 70 % of internal ethylene monomer, wherein, in relation to the weight of all the polymer components, the proportion of the elastomer component amounts to at least 15 % and the proportion of the plastomer component amounts to 40 % to 85 %, and having a mineral filling of from 180 % to 320 % of the weight of the polymer mixture, which filling contains at least one metallic hydroxide, and also having carboxyl groups, characterized in that the carboxyl groups are introduced in a form bonded on a polymer in such a manner that this polymer contains 0.5 % to 14 % by weight of COOH groups.
Patent DE-3201305-A1 (DE)
Title: Educational learning and testing device
Inventor: BERGMANN PAUL
IPC: G09B7/06
Filed: 1982-01-18
Abstract: The application relates to educational learning and testing devices for the self-monitoring of the level of education and of the instructional material absorbed from textbooks which are matched to the device, the pupil being required to identify as correct one answer from each group of answers offered to a number of questions in connection with the instructional material covered. The device produces, immediately and in clear text, an assessment of each individual answer. For particular tests, the advance assessment can also be concealed and then shown at the end of the set of questions as an overall assessment. <IMAGE>
Patent DE-3207580-A1 (DE)
Title: Fully decoupled acoustic nail and screw
Inventor: LINK GOTTLIEB
IPC: F16B15/00
Filed: 1982-03-03
Abstract: A fully decoupled acoustic nail and screw for avoiding body-sound links in all systems and application fields for nails and screws. The sense and purpose of this system solution is intended to be a prevention of body-sound links in future, primarily in the case of use of screws and nails. In consequence, the propagation of noise in specific systems in the future will be limited to the actual noise source, and time, costs and stress will be saved as a result of this primary noise treatment to all systems which are fixed by means of screws and nails.
Patent DE-3210170-A1 (DE)
Title: High-voltage power switch with carriage
Inventor: RAHMANN FRANZ J DIPL ING
IPC: H02B1/24
Filed: 1982-03-19
Abstract: The invention is concerned with a power switch for railway operations which is arranged on a carriage. In addition, a test section switch with a separate storage drive is accommodated on said carriage. Power switches and test switch poles are constructed in the same way; they are bypassed on the power-output side and have there a common isolating contact element.
Patent DE-3212591-A1 (DE)
Inventor: BARTH HUBERT DIPL CHEM DR
IPC: C07D409/04
Filed: 1982-04-03
Abstract: The present invention provides compounds of the general formula I <IMAGE>  (I)  wherein R1 and R2, which are the same or different, are unsubstituted or substituted aromatic rings, Alk is a straight-chained or branched lower hydrocarbon chain and Z is a hydrogen atom, with the proviso that when Alk is a straight-chained hydrocarbon chain, Z can also be a lower alkylamino radical of the general formula II    <IMAGE> (II)  in which R3 and R4 are the same or different and are hydrogen atoms or straight-chained or branched lower alkyl radicals or R3 and R4, together with the nitrogen atom to which they are attached, can also form a ring optionally containing further hetero atoms; and the pharmacologically acceptable salts thereof. The present invention also provides an inventive process for preparing these compounds, as well as pharmaceutical compositions containing them. The compounds I may be used in the therapy of inflammations and they are free of gastrointestinal side effects.
Patent DE-3212790-A1 (DE)
Title: Internal combustion engine with cylinder cut-off
Inventor: LUTZ DIETER DR ING
IPC: F02D17/02
Filed: 1982-04-06
Abstract: The invention relates to an internal combustion engine with cylinder cut-off, in which an auxiliary shaft is provided which in the area of each group of cylinders is rotationally connected to the crankshaft. In order to obtain as stable a construction as possible in the case of such an internal combustion engine it is proposed that each group of cylinders have its own crankshaft, the first crankshaft being connected directly to the output and the second crankshaft also being connected to the first crankshaft by way of the auxiliary shaft of one-part construction and a controllable coupling being provided between the second crankshaft and the auxiliary shaft. By means of this arrangement, in which the auxiliary shaft may be designed as a camshaft, the power output of the second crankshaft is performed by way of this auxiliary shaft and it is easily possible, with a stable construction, to separate this second crankshaft from the auxiliary shaft and also from the first crankshaft.
Patent DE-3215946-A1 (DE)
Title: Abrasive rotor body
Inventor: STRAHL GERHARD
IPC: B24D9/00
Filed: 1982-04-29
Abstract: Screwed onto a machine screw (M12) which is provided with a longitudinal slot is a round, cylindrical steel drum which is likewise provided with a continuous longitudinal slot to the drum centre, and, after abrasive cloth or sand paper has been inserted into the drum and shank slots and has been firmly tightened by turning the drum about the screw shank, and shank and drum have been firmly connected by a nut (M12) on the flat surface of the steel drum, the abrasive rotor body is ready for use. The inexpensive, easy self-covering of the used abrasive surfaces of the abrasive rotor body is advantageous for the user.
Patent DE-3224281-A1 (DE)
Title: Method of operating a magnetic bubble memory as a voice memory, in particular in a telephone answering machine
Inventor: BURGHARDT HARTMUT DR
IPC: F26B23/00
Filed: 1982-06-28
Abstract: Method of operating a magnetic bubble memory as a voice memory with delta-modulated voice recording. The rotating-field frequency is between a maximum of eight times and a minimum of twice the upper voice-frequency band upper limit. The magnetic bubble memory contains a write path, loops, equivalent loops, a read path and a skipping circuit, which allows defective loops to be skipped, only some of the defective loops being skipped by means of this skipping circuit. A particularly good sound quality of the recorded voice in spite of unskipped defective loops is achieved by skipping with preference those defective loops in the vicinity of which there are other defective loops in considerable number lying particularly closely together on the chip.
Patent DE-3234363-A1 (DE)
Inventor: GAETZSCHMANN HORST
IPC: C23C18/24
Filed: 1982-09-16
Abstract: The pretreating of thermoplastic substrates containing carbonamide groups and an inorganic, fine-particulate adhesion filler, is improved to produce strongly adhering metal coatings thereon, by combining the following steps: the pickling is divided in at least two partial steps, where the first partial step comprises predipping in a pickling solution such as 50 to 96% sulfuric acid where the surface tension is lowered to at most 25 mN/m at 20 DEG  C., and the pretreated plastic is dried at 70 DEG  to 110 DEG  C. before the actual galvanic metal deposition.
Patent DE-3235421-A1 (DE)
Title: Transducer housing, particularly for railway purposes
Inventor: GEHRI ANDRE
IPC: H01F38/22
Filed: 1982-09-24
Abstract: The invention indicates a transducer housing for railway purposes, having connections for a measurement electronics unit and through openings for busbars or cables, which has a cover (4) which can be placed on which has cooling ribs (5) externally on its top and a fixedly installed circuit board (6) internally with electrical switching elements which are connected to the transducer via a connector (7). In addition, there is an incline (9) provided with webs (8), which incline (9) corresponds to the incline (10) of the two-piece housing lower part (11) and between which the connections for the measurement electronics unit are passed. Two holes (12), arranged on the sides, are provided for attachment of the housing (1). The through openings (3, 18) are designed such that they firmly hold the cables (19) and the busbar (17) by pressing in and by means of screws respectively. 
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Patent DE-3243794-A1 (DE)
Inventor: DRAWERT MANFRED DIPL CHEM DR
IPC: C08G69/34
Filed: 1982-11-26
Abstract: Polyamides which are alcohol-soluble at room temperature, are useful in formulating printing inks, and which comprise dimerized fatty acids, at least one aliphatic unbranched monocarboxylic acid and at least one aliphatic branched monocarboxylic acid as the acid component, and ethylenediamine and hexamethylenediamine as the amine component, and printing inks formulated therefrom.
Patent DE-3245635-A1 (DE)
Title: Process for producing a ferromagnetic oxide
Inventor: KARASAWA TADAYOSHI
IPC: C01G49/00
Filed: 1982-12-09
Abstract: In the production of ferromagnetic oxides, use is made of a suspension obtained by adding iron oxide to a solution containing sulphates, nitrates and/or hydrochlorides of Mn, Ni, Mg, Cu, Ti, Al and Co. The suspension is roasted at a temperature of up to 1450 DEG C, but above the point at which the acid groups of the acids are decomposed and evaporate. The process according to the invention substantially reduces energy costs. <IMAGE>
Patent DE-3248522-A1 (DE)
Title: Foil cable for the wiring of electrical apparatuses
Inventor: DOERFLINGER KARL DIPL ING
IPC: H01R12/77
Filed: 1982-12-29
Abstract: Prefabricated foil cables are in general used, at least as far as highways are concerned, for the wiring of Series 7 telecommunications racks. These foil cables are folded at the connection panel, and the folds engage, for example, into the end profiles of the bent rails. In order to achieve protection for the foil precisely at this point, a plastic sheet (4) is provided in the interior of the curve, which plastic sheet (4) is bent in a U-shape and against which a plastic part 12 is pressed (which extends partially over the region of the bend), with the interposition of the foil on that limb which is opposite the solder tags. <IMAGE>
Patent DE-3303200-A1 (DE)
Title: Direct-current amplifier circuit arrangement with negative feedback
Inventor: BUDNICK NORBERT
IPC: G01R15/00
Filed: 1983-02-01
Abstract: In this arrangement, the negative feedback branch contains rectifiers exhibiting the threshold value and the amplifier input is decoupled from the feeding input-voltage source by a decoupling resistor, and it is characterised by the fact that the negative feedback branch contains at least one parallel circuit of a diode with a resistor. This simple circuit arrangement allows, for example, load currents to be measured in several measuring ranges with the appropriate indication. When diodes with the same threshold value and resistors which in each case have a ratio of 1:9 are used, a logarithmic measuring range division with linear display is achieved within the respective measuring range.
Patent DE-3313791-A1 (DE)
Title: Multi-way valve, in particular 4/2-way valve
Inventor: DEICHL KLAUS DIPL ING
IPC: F16K11/10
Filed: 1983-04-15
Abstract: The multi-way valve, in particular a 4/2-way valve, is of a sandwich type of construction and includes a plurality of valve units (6-9), designed as diaphragm valves, in a parting plane between two housing parts (3 and 4), which is sealed off by a sealing plate (2). An individual valve unit is formed by a thickened section (13; 14; 15; 16) of the sealing plate 2 with valve-piston function and an elastically extensible annular section (97) of the sealing plate (2), between the thickened piston section and the sealing plate, with pure sealing function, the annular section (97) having a spring-like restoring function in the direction of the valve seat. <IMAGE>
Patent DE-3315627-A1 (DE)
Title: Device for removing bristles from slaughtered pigs
Inventor: SCHULZ PAUL
IPC: A22B5/08
Filed: 1983-04-29
Abstract: The invention relates to a device for removing bristles from slaughtered pigs, with a rotating shaft which is fitted with radially projecting beaters which brush over the body surface of the slaughtered pigs, in which elastomerically crosslinked polyurethane is used as material for the beaters.
Patent DE-3320160-A1 (DE)
Title: Device for thickness control when coating flat articles, preferably when applying a glazing layer to ceramic plates
Inventor: SCHROEDER KLAUS-JUERGEN DIPL I
IPC: G01B11/06
Filed: 1983-06-03
Abstract: An improved device for thickness control when coating flat articles, for example when applying a glazing layer to ceramic plates, is provided, which device has two optical thickness-measuring devices in order to measure the thickness of the article before and after coating and to compare the difference in thickness determined therefrom with a set value for the coating thickness. The deviation of the determined difference in thickness from the set value is used for activating control devices for the application devices and, if appropriate, a transport device carrying the article past the application device. The thickness measurement is preferably performed by two optical scanning devices on either side of the article. For this purpose, a light spot with a focused infrared light beam is preferably projected onto the respective surface and this light spot is optically recorded in a direction lying obliquely to the incident beam and is imaged on a position-sensitive photodetector.
Patent DE-3323421-A1 (DE)
Title: Lining for drive and deflection drums in belt conveyor systems
Inventor: SIMONSEN HARALD DIPL ING
IPC: B65G39/02
Filed: 1983-06-29
Abstract: Replaceable friction linings for conveyor belt drums according to the invention are manufactured from thin steel sheet coated on both sides with rubber and/or an elastic plastic material, the outer layer being many times thicker than the inner layer. To fix it to the drum surface, the three-layer lining is only tensioned in a circumferential direction, so that there is no need for positive locking with the drum.
Patent DE-3324517-A1 (DE)
Title: Emergency call system
Inventor: RUFF GUENTER DIPL ING
IPC: H04M11/06
Filed: 1983-07-07
Abstract: The invention relates to an emergency call system, the emergency call subscriber unit being connectable via subscriber lines of a dial- up switching network and via data lines and telephone connection lines to a central emergency call station. The subscriber lines of the emergency call subscriber station are used in this case in duplicate by providing, in addition to the AF speech path, a data transmission channel via which not only the emergency call telegram and acknowledgement and control signals are exchanged between the emergency call subscriber unit and the central station, but text communication between the subscriber and operating staff is also enabled. To match the communication capabilities of the respective persons seeking help, various input and output devices such as a keyboard, VDU or talk/listen device are provided in the subscriber unit. Advantageously, the telephone channel can thereby be kept free for telephone operation only.
Patent DE-3326140-A1 (DE)
Title: Force/pressure converter
Inventor: BADER HORST DIPL ING
IPC: G01L1/08
Filed: 1983-07-20
Abstract: A force/pressure converter, having a control element which preferably consists of one or two pistons and a guide rod and on which the force which is to be converted acts, having an air supply, an outlet opening and an opening for the output pressure. The special feature of the invention is that the output pressure is fed back to the control element and acts thereon in the opposite direction to the force which is to be converted. Two preferably variable restrictors can be provided in order to set the feedback factor. However, the feedback can also be implemented by means of a simple hole. If the force acting on the control element is applied by an electromagnet through which an electrical current flows, the invention can also be used as a current/pressure converter.