baber/WOPTO huggingface dataset:
Patent DE-3110624-A1 (DE)
Title: Method and device for producing a concentric, multifocal, in particular bifocal contact lens
Inventor: HOEFER PETER
IPC: B24B13/04
Filed: 1981-03-18
Abstract: A method and a device for producing a concentric, multifocal, in particular bifocal contact lens, in which the change in the swivelling radius of the turning tool upon transition from one lens (distance - vision part or near - vision part) to the other lens portion (near-vision part or distance-vision part) is controlled by a template which corresponds to the respective difference in vertex dioptric power between the individual lens portions.
Patent DE-3115230-A1 (DE)
Title: Drilling and cutting device for dental purposes and the like
Inventor: KNOLL ERNST
IPC: A61C13/38
Filed: 1981-04-15
Abstract: The invention relates to a drilling and cutting device for dental purposes and the like which comprises an adjustable articulated arm for holding the processing tool the joints of which possess releasable locking devices. At the same time, the locking devices have fixable and releasable electromagnetic brakes or the like. With these, the joints can be quickly and conveniently blocked and released again, if appropriate, via a foot switch. In particular, blocking of the joints prevents the locking movement leading to an undesirable adjustment movement of the articulated arm.
Patent DE-3115436-A1 (DE)
Title: Method for reprocessing copper-etching waste solutions involving precipitation of the copper fraction as copper oxide and recovery of ammonia
Inventor: JAGUSCH WERNER DR
IPC: C01G3/02
Filed: 1981-04-16
Abstract: Published without abstract.
Patent DE-3122126-A1 (DE)
Title: "Process and appliance for areal bonding of two workpieces by brazing, especially for bonding by brazing of the layers of the sandwich bottom of stainless steel saucepans"
Inventor: LIMBURG HORST
IPC: B23K1/20
Filed: 1981-06-04
Abstract: Process for areal bonding of workpieces by brazing, especially of the layers of the sandwich bottom of stainless steel saucepans. A flux in the form of a non-hygroscopic powder is premixed with a pulverulent or granular brazing material and this mixture is sifted onto one of the bonding faces of the workpieces to be bonded. Then the bonding face of the second workpiece is placed onto the sifted-on layer, and the workpieces are together heated to a temperature at which the brazing material/flux mixture becomes molten. Upon subsequent cooling, an areal, adhesive bond is obtained. The appliance for carrying out the process has a sieve (24) which is charged with the brazing material/flux mixture (32) and is held above a workpiece seating face (14). By means of an impact or oscillation device, which can be made to act on the rim (28) of the sieve (24), a preset amount of the brazing material/flux mixture (32) can be sifted onto the bonding face of a workpiece (16) arranged below the sieve (24) on the workpiece seating face (14). <IMAGE>
Patent DE-3122422-A1 (DE)
Title: Device for producing local enlargements of anchor holes in concrete works and the like
Inventor: SCHUETZEICHEL JOHANNES
IPC: E21B7/28
Filed: 1981-06-05
Abstract: The invention relates to a device for producing local enlargements of anchor holes in concrete constructions and the like, the particular feature of the device consisting of the fact that a pivot bearing for a rotatably functioning drill tool is arranged on a holder in front of the opening of the anchor hole. By virtue of the articulated bearing effective in all directions, the drill tool can be swivelled during the drilling work in such a way that the anchor hole is widened in a spherical cap or cavernous configuration, the shape of this widening being dependent on the profile of the drill head.
Patent DE-3126107-A1 (DE)
Title: Insulating element made of rigid foam plastic or the like for roof coverings made of corrugated asbestos-cement sheets
Inventor: SERWANE KARL
IPC: E04D12/00
Filed: 1981-07-02
Abstract: For insulating such roof coverings, insulating sheets with a smooth surface on the underside and a surface corrugated approximately in accordance with the spacing of the corrugated sheets on the upper side have already been arranged underneath the corrugated sheets. In this case, condensation water can form between insulating sheets and corrugated sheets. Retroactive insulation of corrugated roofs requires, inter alia, the laborious recladding of the entire roof covering. A considerable simplification is afforded by an insulating element whose crowns of corrugation are so designed that, when laid on the upper side of the corrugated asbestos-cement sheets, they completely fill up the entire cross-section of their valleys of corrugation, even when taking into account the step at the overlapping point of two corrugated sheets. The corrugated lower part of the insulating element can consist of individual insulating bars which correspond to the valleys of corrugation of the corrugated sheets and on which is laid an insulating sheet which is smooth on both sides and of any desired thickness. The insulating bars can be connected, in the region of their ends, at mutual distances in accordance with the spacing of corrugation, in particular by adhesive strips which can stretch to a certain extent. <IMAGE>
Patent DE-3128376-A1 (DE)
Title: Modular building structure
Inventor: UMEZU HIROAKI
IPC: E04B1/348
Filed: 1981-07-17
Abstract: The subject of the invention is a module for a modular building structure, having a frame which exhibits a horizontal, lower, rectangular base frame and four vertical corner posts which are of the same length and are fastened on the four corners of the base frame. A first wall element is connected to two corner posts located one beside the other. A second wall element is connected to one of these two corner posts and to the corner post diagonally opposite the other corner post.
Patent DE-3128438-A1 (DE)
Title: Conveying apparatus for bulk materials with a tendency to bridging
IPC: B65G33/18
Filed: 1981-07-18
Abstract: Apparatuses for conveying bulk materials with a tendency to bridging have to be so designed that crushing or grinding of the individual particles of the bulk materials is avoided. This is only achieved if the bridging of the individual particles of the bulk materials is prevented. An apparatus is now proposed in which the bridging of the bulk material is utilised for conveying, especially in order conveyed to permit pumping of the bulk material from a lower pressure level to a higher pressure level. To this end, a propeller pump is used as a conveying apparatus for the bulk material with a tendency to bridging, the pump having at least two spindles with their axes lying in one plane, these having a mutually engaging screw profile and being driven in the same direction.
Patent DE-3134486-A1 (DE)
Title: Profiled claw
Inventor: GHIBELY BRUNO
IPC: E04F13/08
Filed: 1981-09-01
Abstract: Profiled claw having a first portion, which is to be brought into engagement with the edge profile of a workpiece which is to be fastened and consists of wood or the like, and having a second portion for fastening on a load-bearing structural part which exhibits at least one fastening hole for receiving a fastening means, first and second portions being arranged at right angles with respect to each other and spaced apart via a connecting portion. <IMAGE>
Patent DE-3136395-A1 (DE)
Title: Circuit arrangement for indicating binary signals using light-emitting diodes
Inventor: SCHOLLENBERGER LOTHAR ING GRAD
IPC: G01R13/40
Filed: 1981-09-14
Abstract: The circuit arrangement consists of a plurality of functional units (FE1 to FE4). The output of each functional unit is short-circuited or open-circuited depending on the input signal. A light-emitting diode (D1 to D4) which is supplied from a constant-current source (St) is connected in parallel with the output of each functional unit. The current now flows either through the output of the functional units or through the light-emitting diodes, depending on the input signal. <IMAGE>
Patent DE-3136866-A1 (DE)
Title: Tubular heat exchanger with flow-guiding internals (inserts)
Inventor: WERNER UDO PROF DR ING
IPC: F28F9/22
Filed: 1981-09-17
Abstract: The invention relates to a tubular heat exchanger having a heat exchanger jacket (shell) of round cross-section, inserted tube plates (sheets) and a multiplicity of heat exchange (transfer) tubes of round cross-section which are mounted in the tube plates and through which at least one heat exchange medium flows. The heat exchanger jacket has an inlet, an outlet and a flow chamber for another heat exchange medium. Arranged in the flow chamber are flow-guiding internals which are designed as plates and through which the heat exchange tubes penetrate. On their outer circumference, the plates form flow passages with respect to the heat exchanger jacket, and thereby improve the heat exchange in this region. <IMAGE>
Patent DE-3139309-A1 (DE)
Title: Internal combustion engine
Inventor: NAMBA YUZURU
IPC: F02M35/108
Filed: 1981-10-02
Abstract: An internal combustion engine has a plurality of main intake ducts which are connected to a single combustion chamber and provided in such a way that they can be opened or closed by different intake valves. In addition to the main intake ducts, a plurality of secondary intake ducts are provided, which are aligned in relation to the individual combustion chamber in such a way that the gases fed in by the secondary intake ducts during an intake stroke are swirled in an identical peripheral direction inside the same combustion chamber.   <IMAGE>
Patent DE-3141923-A1 (DE)
Title: 2-(2-Pyridyl)ethoxycarbonyl and 2-(4-pyridyl)ethoxycarbonyl compounds and pyridinium salts thereof; a process for their preparation and their use as protecting groups for amino and hydroxyl functions
Inventor: KUNZ HORST PROF DR
IPC: C07D213/30
Filed: 1981-10-22
Abstract: Compounds of the general formulae I and II <IMAGE> in which X is an anionic leaving group, serve for introducing 2-(2-pyridyl)ethoxycarbonyl and 2-(4-pyridyl)ethoxycarbonyl protecting groups into amino and hydroxyl functions of organic synthetic building blocks, specifically of amino acids. Compounds protected in this manner in turn belong to type I or II, in which X represents the amino or hydroxyl function of organic molecules, in particular that of amino acids and peptides. This protection according to the invention is stable under basic and acidic conditions used during peptide syntheses. It is likewise stable under hydrogenating conditions. This makes it possible to use amino acids and peptides protected according to the invention in a profitable manner for the synthesis of peptides, the increased water solubility of the building blocks by virtue of protecting groups I and II being a particular advantage. After conversion into the pyridinium compounds corresponding to I and II, the protecting groups can again be eliminated under very mild basic conditions.
Patent DE-3145720-A1 (DE)
Title: Hydraulic control device for controlling lifting gear
Inventor: HESSE HORST DIPL ING DR
IPC: A01B63/111
Filed: 1981-11-19
Abstract: A fully hydraulic control device (10) for controlling lifting gear having a control circuit (23) constructed as a bridge circuit is proposed, in which control device the actuation lever (43) of the mixing valve (33) serves simultaneously for switching off the control circuit (23). Upstream of the bridge resistors (29, 31) a connection (49) branches off to the tank (38), in which connection valve means (48) which can be controlled by the actuation lever (43) of the mixing valve (33) are connected. In the off position (55), the control oil pump (20) to the tank (38) is relieved as a result of which the energy requirement for controlling and the risk of restrictors being contaminated and thus of uncontrolled lifting gear movements is reduced. The switched-off control circuit (23) additionally provides a safety function in the event of undesired actuation of the reference value generator (32). <IMAGE>
Patent DE-3146163-A1 (DE)
Title: Radio-frequency rectifier
Inventor: HEINECKE WOLFGANG
IPC: G01R19/22
Filed: 1981-11-21
Abstract: In a radio-frequency rectifier, a mixer is provided which converts the RF signal to be rectified into an AF signal corresponding to the RF signal. Furthermore, an AF rectifier is provided which converts the AF signal into a DC signal.
Patent DE-3148047-A1 (DE)
Title: Use of alkylenediamine derivatives as antimicrobial active substances
Inventor: MAAK NORBERT DIPL CHEM DR
IPC: A01N37/36
Filed: 1981-12-04
Abstract: The antimicrobial active substances used are compounds of the formula I <IMAGE> in which R<1> is a straight-chain or branched saturated or unsaturated aliphatic hydrocarbon radical having 8 to 18 carbon atoms and R<2> is a hydrogen atom or a straight-chain or branched saturated or unsaturated aliphatic hydrocarbon radical having 1 to 6 carbon atoms, while n represents an integer from 2 to 6 and m an integer from 3 to 5, and addition products of ethylene oxide, propylene oxide and/or glycidol with compounds of the formula I.
Patent DE-3149468-A1 (DE)
Title: Device for recovering heat from the waste gases of a heating boiler
Inventor: NOACK ROLF DR ING
IPC: F28D21/00
Filed: 1981-12-14
Abstract: The waste gas duct (2) of a heating boiler (1) is associated with two heat exchanger stages (3 and 4) which can be switched into the waste gas stream as a function of a fixed temperature value. The first stage (3) is subjected to the waste gases when the waste gas temperature is above the dew point of about 130 DEG C, i.e. it always remains dry. The second stage (4) is subjected only to waste gases below 130 DEG C, i.e. condensate precipitation occurs in this stage. Only this second stage (4) has to consist of corrosion-resistant material. <IMAGE>
Patent DE-3151093-A1 (DE)
Title: Group of directional couplers used as light switches for a switching system
Inventor: WIEDEBURG KLAUS DR ING
IPC: H04Q3/52
Filed: 1981-12-23
Abstract: A group (GK) of directional couplers (RK) used as light switches for a switching system with optical signals, produced in integrated technology, three optical fibres (A-A', B-B', C-C') and two light switches CRK1, RK2) having two optical signal inputs each (A/B, B/C) and two optical signal outputs each (A'/B', B'/C') being mounted on one substrate. The first light switch (RK1) is attached to the first (A-A') and second (B-B') optical fibre and the second light switch (RK2) is attached to the second (B-B') and third (C-C') optical fibre, each light switch (RK1, RK2) containing a coupling link with two parallel sections of the optical fibres (A-A'@B-B' and B-B'@C-C') which are arranged closely adjacently or are in close contact with one another, and at least a separate electrically controllable electrically conducting electrode (EA, EB) in each case being attached to its optical fibres along the coupling link, which electrode forwards (from A to A' and from B to B') the optical signal conducted in its two optical fibres (A-A', B-B') or forwards crossed over between the optical fibres (from A to B' and from B to A') depending on the electrical potentials at the electrodes (EA, EB) of the relevant light switch (RK1). These two light switches (RK1, RK2) are arranged to be mutually overlapping one another in such a manner that at least one electrode (EB), acting on the second, that is to say centre optical fibre (B-B'), of the first light switch (RK1) is identical to an electrode (EB), acting on this second optical fibre (B-B'), of the second light switch (RK2). <IMAGE>
Patent DE-3209862-A1 (DE)
Title: Power stage for two balanced-to-earth binary output signals
Inventor: SCHEMMEL HANS-ROBERT DIPL ING
IPC: H03K5/151
Filed: 1982-03-18
Abstract: The proposed power stage for two balanced-to-earth binary output signals is activated by a binary input signal whose logic levels are balanced to earth. The input signal arrives at the bases of a first transistor pair and the input signal inverted by an inverter arrives at the bases of a second transistor pair. Depending on the binary value of the input signal, the collector-emitter path is rendered conducting in each case in one transistor of each transistor pair and in this way a supply voltage source is applied with a polarity dependent on the binary value of the input signal to the output terminals of the power stage. The pole potentials of the supply voltage source are balanced to earth. The output voltages of the power stage are stabilised with resistors and a diode bridge.
Patent DE-3212609-A1 (DE)
Title: Device with sorption accumulator and compression-heat pump
Inventor: ALEFELD GEORG PROF DR
IPC: F25B25/02
Filed: 1982-04-05
Abstract: In the described device with sorption heat accumulator and compressor, which can serve for heating and/or cooling purposes, the condensation heat of a working fluid compressed in the compressor serves as desorption heat for expelling the working fluid from an absorption medium contained in the sorption accumulator. As the heat released during condensation is only under very special circumstances equal to the desorption heat, stable temperature and pressure conditions have not previously been guaranteed in the sorption accumulator during its charging. This disadvantage is avoided by a compensating vessel (28) which is connected between the sorption accumulator outlet for the gaseous working fluid and the inlet of the compressor (38) on the one hand and the outlet for the liquid working fluid from the condenser (12) and a storage vessel (35) for liquid working fluid. <IMAGE>
Patent DE-3217112-A1 (DE)
Title: Support wheel for side car
Inventor: WINTERHOLLER ERNST M
IPC: B62K27/10
Filed: 1982-05-07
Abstract: Riding a motor bike with side car requires a particular driving technique. The beginner experiences considerable difficulties particularly with driving around bends. Driving through a right-hand bend for example requires a different technique from driving through a left-hand bend. Here, it is unimportant on which side the side car is attached. When going around bends in which the side car runs on the outside, oversteering of the vehicle combination can lead to overturning. This danger can be avoided if a support wheel, which corresponds in its configuration to the weight of the motor bike with side car, is arranged on the outer front part of the side car. <IMAGE>
Patent DE-3219975-A1 (DE)
Title: Telescopic bar
Inventor: HONGANVIK RAGNVALD
IPC: E06B9/02
Filed: 1982-05-27
Abstract: The invention relates to a telescopic bar which can be securely fixed between two faces. The ends of the bar (1, 2) are fitted with rotatable discs (4, 5), at least one of these discs (4, 5) being fixed to the bar (1, 2) by means of a screw (6) in such a way that a relative rotary movement between bar (1, 2) and screw (6) adjusts the discs (4, 5) in relation to the bar (1, 2) in the longitudinal direction. The bar (1, 2) has a locking mechanism (11, 12) which prevents unscrewing of the fixed bar (1, 2). The outer faces of the discs (4, 5) are covered with layers (9, 10) of relatively soft material. <IMAGE>
Patent DE-3224778-A1 (DE)
Title: High-voltage switching chamber with an auxiliary arc
Inventor: SLAMECKA ERNST PROF DR TECHN
IPC: H01H33/915
Filed: 1982-07-01
Abstract: The problem of reducing the drive energy and switching-off time required by auto-compression switches for switching off large short-circuit currents is solved as follows: a movable cylinder is terminated at both ends by walls which slide in a gas-tight manner over tubes and nozzles. A stationary piston produces two spaces in the interior of the cylindrical hollow space. A first space section, in which the extinguishing gas is mechanically compressed, surrounds the nozzle arrangement. A second space section holds switching pieces for generating an auxiliary arc which drives the extinguishing gas into the first space section and from there into the nozzles, in order to increase the interrupting effect of said extinguishing gas.
Patent DE-3227360-A1 (DE)
Title: Process for continuous production of sheets from short capillary pieces
Inventor: DIETZSCH HANS-JOACHIM
IPC: B29C69/00
Filed: 1982-07-22
Abstract: Process for continuous production of sheets from short capillary pieces, characterised in that successive leaves of capillaries lying adjacent to each other are formed from a continuously supplied capillary strand. These leaves are successively superimposed to form layers, in which preferably a part of the superficial extent of the leaf last superimposed is covered by the following leaf in a staggered manner. A block is produced from the layers, which is cut into sheets in a further processing stage.
Patent DE-3229689-A1 (DE)
Inventor: HOCHREUTHER KARL
IPC: G01R1/06
Filed: 1982-08-10
Abstract: Portable measuring device, including a measuring instrument, a carrying strap fastened to the measuring instrument for hanging the measuring instrument around the neck, measuring lines electrically connected to the measuring instrument and passing through at least part of the carrying strap, measuring probes connected to the measuring lines, the measuring lines being in the form of flexible spiral cables between the carrying strap and the measuring probes, and at least one mounting disposed on the measuring instrument for fastening unused measuring probes hanging on the measuring lines.
Patent DE-3229952-A1 (DE)
Title: Electrical capacitor
Inventor: WEEKS RONALD DEREK
IPC: B23K35/22
Filed: 1982-08-12
Abstract: In an electrical capacitor, in particular a tantalum capacitor with solid electrolyte, a connection layer (15) of a conductive mass is provided which consists of lamellar and non-lamellar copper particles, a binder, a solvent and, if appropriate, a wetting agent. Such a conductive mass prevents a deterioration in the loss factor of the capacitor when a lead (16, 17) is soldered by means of a tin-containing solder (18) to the conductive mass (15). <IMAGE>
Patent DE-3235235-A1 (DE)
Title: Method for determining the status or the type of banknotes in a cash dispenser and device for implementing the method
Inventor: GRAEF HARRY THOMAS
IPC: G07D7/00
Filed: 1982-09-23
Abstract: In a cash dispenser, overlapping or folded banknotes are detected using detectors which measure the banknote length and thickness. The detectors generate a first signal when the banknote thickness corresponds to the thickness of at least one standard banknote, and a second signal when the banknote thickness corresponds to at least twice the standard banknote thickness. A third signal is generated when the banknote thickness corresponds to at least three times the standard banknote thickness. The first and the second signal are fed, together with a fourth signal corresponding to the banknote length, to a computer which identifies single, double, overlapping or folded as well as stuck banknotes. The count of a banknote counter is increased as a function of the identification of single or dispensable double banknotes. Overlapping, folded, non-dispensable double, treble or suspect banknotes are separated into a separating container. <IMAGE>
Patent DE-3235693-A1 (DE)
Title: Process for the re-extraction of indium from an organic solvent phase
Inventor: OGATA TAKASHI
IPC: C01G15/00
Filed: 1982-09-27
Abstract: Process for the re-extraction of indium from an indium-containing organic solvent phase based on a monoalkyl alkylphosphonate. The extractant used is an aqueous solution containing hydrochloric acid and a chloride of a metal which is more electropositive than indium. Suitable metal chlorides are in particular alkali metal chlorides and alkaline earth metal chlorides. <IMAGE>