baber/WOPTO huggingface dataset:
Patent DE-3132605-A1 (DE)
Title: Invertor in a circuit with a neutral point
Inventor: HEINICKE HARALD
IPC: H02M7/519
Filed: 1981-08-18
Abstract: An invertor in a circuit with a neutral point contains a transformer (1) whose primary winding (1a) has a centre tap (A7) which is connected to one terminal of an input voltage source (UE). Both ends of the primary winding (A1, A2) are connected via in each case one main thyristor (2, 3) to a connection of an inductor (4) whose second connection is connected to the second terminal of the input voltage source. In order to switch the invertor off, the inductor (4) is connected in parallel with the series circuit formed from an additional turn-off capacitor (12), which is connected to a charging device (13), and a turn-off thyristor (11). If it is intended to switch the invertor off in the event of a disturbance (defect), then the drive pulses for the main thyristors (2, 3) are inhibited and the turn-off thyristor (11) is driven. No current therefore passes through the main thyristors (2, 3), and the current through the inductor (4) is taken over by the series circuit consisting of the turn-off thyristor (11) and the additional turn-off capacitor (12). As soon as this current reaches zero, the turn-off thyristor (11) is also turned off again. <IMAGE>
Patent DE-3133134-A1 (DE)
Title: Electrical switch, especially for motor vehicles
Inventor: BOETZ JAKOB
IPC: H01H13/02
Filed: 1981-08-21
Abstract: The invention relates to an illuminated electrical switch, especially to a switch having a lumination for finding it and for its operation. The switch has a handle which can be moved into two different positions and has a front wall with two regions which can be illuminated in a different manner depending on the position of the handle. Two light elements are provided for illumination, each of which is allocated to one of the regions which can be illuminated. In order to obtain particular shapes and allocations between the two regions which can be illuminated, at a design cost which is as low as possible, the two light elements are arranged one behind the other in the direction at right angles to the front wall. In addition, means are provided which guide the light emitted by the lower light element laterally past the upper light element to the region which can be illuminated and is associated with the lower light element. This arrangement is particularly advantageous if one of the regions which can be illuminated is located inside the other region which can be illuminated.
Patent DE-3133241-A1 (DE)
Title: Monitoring device for looms
Inventor: BELZ KARL-HEINZ
IPC: D04B35/20
Filed: 1981-08-22
Abstract: During the weaving, knitting and braiding of textile slivers, continuous fabric faults or variations in the sliver thickness and sliver width occur. It is therefore necessary to monitor the production of the slivers for faults and dimensional accuracy. The monitoring device according to the invention is characterised by a test head (2) slipped onto the sliver (1) to be monitored and by an analog memory (4) connected to the test head. The test head (2) has at least one light barrier (3), the optical axis of which is split by the sliver (1) into a part above the sliver (1) and another part below the latter. The analog memory (4) is connected to a receiver (32) of the light barrier (3). If a threshold value proportional to an adjustable fault of specific size is exceeded at the receiver (32), a signal is transmitted to the analog memory (4). When an adjustable memory value is obtained within an adjustable time unit, the analog memory (4) transmits a holding signal for the loom. <IMAGE>
Patent DE-3139069-A1 (DE)
Title: Method of producing patterned layers on the surface of a semiconductor
Inventor: FLOEDL HELMUT DIPL ING
IPC: H01L21/033
Filed: 1981-10-01
Abstract: According to the invention, which is intended, in particular, for fabricating solar cells, a mask is applied to a semiconductor surface. The semiconductor surface is then coated with a soot layer composed essentially of carbon. The mask is removed again and the semiconductor surface is then coated with a metal layer. This metal layer adheres well to the semiconductor material and poorly to the soot layer, with the result that the areas of the metal layer situated on the soot layer can easily be removed again, together with the soot layer.
Patent DE-3140919-A1 (DE)
Title: Speedometer for wheeled vehicles, in particular bicycles
Inventor: PABST KARL THEO
IPC: G01P1/04
Filed: 1981-10-15
Abstract: The speedometer is to be universally applicable for different tyre sizes without gear elements being changed. For this purpose, a crown gear which can be attached centrally to the axle of the vehicle is provided with at least two annular gears with a different diameter but the same gearing. Depending on the tyre diameter, a counter-wheel is brought into engagement in one of the annular gears of the crown gear. The rotational movement of the counter-wheel can be transmitted to the display device via a flexible shaft without further gear elements.
Patent DE-3149827-A1 (DE)
Title: Arrangement for monitoring electrical circuits
Inventor: KEDERS THEODOR DIPL ING
IPC: G01R19/165
Filed: 1981-12-16
Abstract: The subject matter of the invention is an arrangement with a magnetically controllable resistor which monitors an electrical circuit for transgression of a predetermined instantaneous current value. This is done with the aid of an adjustable electronic constant-current source which feeds the magnetically controllable resistor. The voltage dropped across the resistor is supplied to the input of an electronic flip flop which supplies an output signal without delay when a particular input voltage value is exceeded. The output signal can be used for triggering a switching device, particularly an explosive isolator. The invention is particularly suitable for monitoring electrical DC circuits.
Patent DE-3201912-A1 (DE)
Title: Device for extraction of odours arising on expulsion of digested food and/or of flatulence
Inventor: HOELTER HEINZ DIPL ING
IPC: A61G7/05
Filed: 1982-01-22
Abstract: In an extraction device for hospital beds in which air is sucked in from under the bedspread, is passed through a filter, freed from unpleasant odours thereby and then led off, the constant removal of heated air from the space under the bedspread and the associated flowing-in of colder air from outside into this space may lead to an undesirable cooling of the patient. In order to avoid this, only part of the extracted air, having passed the filter, is led off while the other part is fed back into the space under the bedspread. <IMAGE>
Patent DE-3202489-A1 (DE)
Title: Gold-plating electrolyte and process for preparing it
Inventor: SEMJAKINA GEB SMOLJAK
IPC: C25D3/48
Filed: 1982-01-27
Abstract: The invention relates to the field of electrochemical deposition of metallic coatings, in particular to a gold-plating electrolyte and a process for preparing it. The gold-plating electrolyte has the following composition (in g/l): hexapotassium- mu -ethylenediamine tetraazetatobis(gold sulphite(I)) 10.5-210, alkali-metal salts of ethylenediaminetetraacetic acid 17.8-140, the remainder being distilled water. The electrolyte may also contain additives such as ethylenediaminetetraazetatocopper (II) bis(2-aminoethylammonium) or ethylenediaminetetraazetatocadmiumbis(2-aminoethylammonium) in an amount of 0.01 to 15 g/l. The process for preparing the gold-plating electrolyte is to react the reactants, the tetrachlorogold (III) acid, the alkali-metal salt of ethylenediaminetetraacetic acid, the alkali-metal sulphite, the potassium hydroxide and the ammonium chloride in one step in distilled water at a temperature of 80 to 90 DEG C with the following ratio of the reactants (in g/l): tetrachlorogold (III) acid 12.6-250, alkali-metal salt of ethylenediaminetetraacetic acid 39-1000, alkali-metal sulphite 6-190, potassium hydroxide 32-800, ammonium chloride 6.6-132; this reaction produces a gold-plating electrolyte and a precipitate of the chlorides and sulphates of the alkali metals, the latter being separated from the electrolyte by filtration. The present invention can be used in the electronics industry, in the watch and jewellery industry, and in radio engineering.
Patent DE-3207326-A1 (DE)
Title: Arrangement for lubricating saw chains on chain saws
Inventor: KRUG FRITZ
IPC: B27B33/14
Filed: 1982-03-01
Abstract: Arrangement on a chain saw for lubricating the saw chain, which has groove-like oil guides, and is made up of driving elements connected by chain studs, cutting tooth elements and connecting links which slide by their lower edges on the webs (formed by a guide groove) of a guide rail which has oil feeds to the guide groove, the groove-shaped oil guides of the saw chain being formed on at least one side face of the connecting links and preferably also of the cutting tooth elements. <IMAGE>
Patent DE-3208605-A1 (DE)
Title: Device for adjusting the height of inking and/or correcting ribbons in the typing region of typewriters or similar office machines
Inventor: RICKE HEINZ
IPC: B41J35/14
Filed: 1982-03-10
Abstract: The inking and correcting devices are arranged on a pivotable carrier (5) which can be pivoted by means of a single lifting magnet (38) into a first working position for lifting the inking ribbon and into a second working position for lifting the correcting ribbon. The pivoting movement of the carrier (5) is limited by stops. The control of the stops is to be simplified by means of the invention. For this purpose, the receiving device for the carrier (5) has a blocking member (35) with stop steps (32, 33, 34) arranged offset, in such a way that the carrier (5) can be blocked in the basic position by a first stop step (32), in the working position of the inking ribbon (11) by a second stop step (33) and in the working position of the correcting ribbon (23) by a third stop step (34). The blocking member (35) is controlled by means of a stepping motor (16) which is already present for lifting and transporting the inking ribbon (11), only its direction of rotation being reversed. No additional component is necessary for controlling the stop steps (32, 33, 34). <IMAGE>
Patent DE-3210922-A1 (DE)
Title: Clutch operator subassembly for pulled friction clutches
Inventor: LUTZ DIETER DR ING
IPC: F16D25/12
Filed: 1982-03-25
Abstract: The invention relates to a clutch operator subassembly for a pulled friction clutch, in which the revolving bearing ring engages behind the release elements of the friction clutch and the nonrevolving bearing ring can be acted upon in the release direction, i.e. away from the friction clutch, by a releasing force, this nonrevolving bearing ring for supporting the releasing force being, for example, mounted in the gearbox and arranged to allow displacement in the axial direction. To facilitate the assembly of the engine and gearbox a one-way lock is according to the invention arranged between the nonrevolving bearing ring and the component transmitting the releasing force, the said lock being in the release position during the assembly operation in the course of the insertion movement of the nonrevolving bearing ring. This one-way lock furthermore serves to transmit the releasing force to the nonrevolving bearing ring and to carry out the automatic adjustment for wear.
Patent DE-3213675-A1 (DE)
Title: Electrical plug connector
Inventor: HOERCHENS HELMUT
IPC: H01R13/53
Filed: 1982-04-14
Abstract: A measure is described by means of which the inadvertent release of the contact connection within a medium-voltage plug device is prevented. <IMAGE>
Patent DE-3215757-A1 (DE)
Title: Internal connection switch for in-house telephone or PABX telecommunications systems
Inventor: HORNBURG KLAUS
IPC: H04M9/00
Filed: 1982-04-28
Abstract: The subject matter of the invention is an internal connection switch of an in-house telephone or PABX system which is designed as an FET switch to whose channel output (D or S, Drain or Source) further analog switches, selectable in any number, can be connected, and to whose input (G, gate) the controller (St) of the internal connections of the individual telephone sets is connected. <IMAGE>
Patent DE-3217320-A1 (DE)
Inventor: ANDERKA HEINZ-J ING GRAD
IPC: G02B6/44
Filed: 1982-05-08
Abstract: Zur Aufnahme einer Vielzahl von Lichtwellenleiterspleißen (8) samt deren Vorratslängen (9) sind Spleißkassetten (1) vorgesehen. Die Spleißkassetten (1) weisen Führungsprofile auf, derart, daß die Spleißtaschen (10) in denen die Lichtwellenleiterspleiße (8) untergebracht sind, frei nach oben herausziehbar bzw. nach unten einschiebbar sind. Eine Aufteil- und Trägerplatte (2) dient zur Positionierung der auf sie zeilen- und/oder spaltenweise aufgesetzten Spleißkassetten (1).
Patent DE-3224124-A1 (DE)
Title: Rotary mowing machine
Inventor: KRONE BERNARD
IPC: A01D43/04
Filed: 1982-06-29
Abstract: The invention relates to a rotary mowing machine having a box girder located at the bottom, connectable to an agricultural tractor or suchlike traction engine by means of a mounting or trailing device and, in the operating position, running over the ground in a lateral position relative to the traction engine, with a number of disc-shaped knife carriers equipped on the circumference with cutting knives, and a tedding roller driven via a main gear, following the box girder and arranged in a hooded housing. The drive connection between the main gear and the tedding roller is made via a parallel crank mechanism. The drive connection can be released quickly and easily by means of the parallel crank mechanism, so that the tedding roller can also be removed from the rotary mowing machine in a short time.
Patent DE-3228482-A1 (DE)
Inventor: WAL WILLEM JOHAN JACOB VAN DER
IPC: B01J23/74
Filed: 1982-07-30
Abstract: Process for the reaction of carbon monoxide with steam, with formation of carbon dioxide and hydrogen at elevated temperature in the presence of iron-containing catalysts (shift reaction), in which a catalyst is used, which contains finely divided iron oxide on an inert, thermostable carrier having a high specific surface.
Patent DE-3229318-A1 (DE)
Title: Thermal insulating element made of a highly disperse insulating material and compacted by pressing, as well as process for the manufacture thereof
Inventor: KUMMERMEHR HANS
IPC: B32B19/04
Filed: 1982-08-05
Abstract: A thermal insulating element made of a highly disperse thermal insulating material and compacted by pressing, to which mineral fibres and an opacifier are added, has even with the addition of a curing binder a mechanically sensitive surface, which has especially low abrasion resistance and tends to crumble away, if the pressed material (4) is not pressed in a covering, for example of glass fabric. In order to avoid this disadvantage at least one of the surfaces (4a) of the thermal insulating element (1) is provided with a laminated web (2) or a cover layer (2a). The laminated web (2) can be anchored especially by an adhesive on the surface (4a) of the pressed material (4), which adhesive penetrates into the surface and there forms an adhesive layer (3). Unevennesses of the surface (4a) of the thermal insulating element (1) can be compensated by means of a cover layer (2a) of suitable thickness (d'). When using a cover layer (2a) that ceramises at high temperatures, a hard, erosion-resistant and mechanically strong covering of the thermal insulating element (1) results at high temperatures. In order to aid the handling of the thermal insulating element (1) before the formation of the ceramic bond, this cover layer (2a) can be used in the manner of an adhesive layer (3) below a laminated web (2). The laminated web (2) can then consist of a cheap material that volatilises under the effect of heat, such as paper, the adhesive effect of which can be improved, if required, by the addition of an organic binder or inorganic, glass-forming binder. <IMAGE>
Patent DE-3230735-A1 (DE)
Title: Method for the mass production of cannulas, cannula, device for carrying out the method and applications
Inventor: LUCKERT MANFRED
IPC: A61M5/32
Filed: 1982-08-18
Abstract: Published without abstract.
Patent DE-3232648-A1 (DE)
Title: Apparatus for the combustion of exhaust air containing combustible materials
Inventor: LUZ WERNER
IPC: F23G7/06
Filed: 1982-09-02
Abstract: The mixing of the exhaust air with combustion gas takes place in a Venturi tube to which a diffuser is connected. A very rapid and intensive mixing thereby results which permits the apparatus to be operated at lower temperatures than hitherto. In addition, the dimensions of the apparatus can be considerably reduced in comparison with conventional apparatus.
Patent DE-3237639-A1 (DE)
Title: Mercerising process
Inventor: GOTTSCHALK KARL-HEINZ DIPL ING
IPC: D06B7/08
Filed: 1982-10-11
Abstract: The invention concerns a process for mercerising transversely and longitudinally guided woven and knitted cloth and seeks to simplify the state of the art by making it advantageous to mercerise grey or brown state cloth without soiling the liquor and by making it possible for the cloth to be stored for any desired length of time prior to further treatment at a later date. According to the invention, it is proposed for this purpose that the cloth, after impregnating with mercerising liquor having a caustic concentration of 20-25 DEG  Bé in the case of cotton or 12-20 DEG  Bé in the case of viscose or blend fabrics, initially be subjected to a dwell treatment in a slightly tensioned or relaxed state, then dried in the transversely or longitudinally tensioned state at a treatment medium temperature in the end phase of the drying of not more than 110 DEG C to a residual moisture content in the region of the natural moisture content of the fibres, thereafter cooled down to a temperature of about 40 DEG C or below and finally plaited.
Patent DE-3239824-A1 (DE)
Title: Device for securing a wheel cover
Inventor: KRETSCHMER PAUL
IPC: B60B7/10
Filed: 1982-10-27
Abstract: Device for attaching a wheel cover in the wheel disc of a wheel rim with a groove running around the base of the wheel disc, composed of a holder in the wheel cover for bearing a spring-mounted clip, the wheel cover being held in a spring-mounted, unsupported fashion in the wheel disc by several, preferably six clips, in which case the attachment takes place by means of spring-mounted tongues which are arranged on the wheel cover, with a length corresponding to the depth of the wheel disc and are provided at their free ends with a bead which fits into the groove and is held engaged in the groove under the effect of the spring force of the clip. The bead can be constructed on the clip itself or on a strap arranged on the cover.
Patent DE-3240622-A1 (DE)
Title: Metering device for engine fuel injection system
Inventor: ITO SHINZO
IPC: G01F17/00
Filed: 1982-11-03
Abstract: The device has a measuring chamber filled with fuel and coupled to a gas press chamber held at a constant pressure. The measuring chamber is attached to the fuel injection device for providing the fuel to be injected, with a sensor providing a signal representing the movement of a piston incorporated in the measuring chamber during the injection phase, to allow the injection rate to be measured.Pref. the fuel injection rate is calculated by an arithmetic unit coupled to the sensor monitoring the piston movement and also receiving a signal from the control circuit controlling the fuel injection cycle. The output of the arithmetic unit is fed to a display, e.g. incorporated in the dashboard. The device has a high accuracy and is not affected by vibration etc
Patent DE-3243700-A1 (DE)
Title: Device for the reliable intermittent detection of occupied status
Inventor: SCHIWEK LUTZ-WERNER DIPL ING
IPC: B61L23/08
Filed: 1982-11-23
Abstract: The invention relates to a device for the reliable intermittent detection of occupied status of rail sections with automatic direction detection and follow-on locking. It is characterised by the following measures:   - at least two probes are arranged serially at the limits of each rail section, - the probes at the limit of a rail section are connected to a circuit arrangement for occupied status detection and to a circuit arrangement for direction detection, - the occupied signal is fed to reliable AND elements (5n-1, 5n, 5n+1,...) which are assigned to adjacent rail sections, - the reliable AND elements (5n-1,...) are connected to the R-input of a reliable occupied status memory (6n-1,...) assigned to a rail section, - the S-input of a reliable occupied status memory (6n-1,...) is connected to the output of a reliable OR element (7n-1,...) which receives signals from other reliable AND elements (4n-1,...) which are assigned to adjacent rail sections, - the other reliable AND elements (4n-1,...) form signals from the backwards and all-clear signals or forwards and all-clear signals of the next but one rail sections.   <IMAGE>
Patent DE-3246382-A1 (DE)
Title: Stove with viewing panel
Inventor: STACHEL FRANK-PETER
IPC: F24B5/02
Filed: 1982-12-15
Abstract: The aim of the invention, which relates to a stove which can be closed with a viewing panel, is to design the latter in such a manner that the smoke gases are to a great extent kept at a distance from the viewing panel, which until now became sooted up quickly by the smoke gases flowing past it, so that the viewing panel only needs to be cleaned of soot at long time intervals. According to the invention, this aim is achieved in that there is arranged behind the air-inlet opening, which can be closed by slides, in the front of the stove a combustion-air distributor box, into the upwardly directed wall of which there is let in, for the passage of combustion air, a row of holes which extends over the entire width of the viewing panel and is itself not closable, while the wall of the distributor box, which faces towards the combustion chamber, has a combustion-air supply opening which can be closed by slides. Only when, after completion of the ignition process, the air slide in the front of the stove is closed, does no air flow rising behind the viewing panel flow. However, as long as smoke gas is given off by the fire, the air flow behind the viewing panel protects the latter from the soot-bearing smoke gases.
Patent DE-3246953-A1 (DE)
Title: Process for recovering chlorine from chlorine-containing off-gases
Inventor: KOENIG GUENTER DR
IPC: C01B7/07
Filed: 1982-12-18
Abstract: A process is described for the recovery of chlorine from chlorine-containing off-gases (exhaust gases, waste gases) which comprises, first of all, passing these into alkali metal hydroxide to prepare, in a conventional manner, a bleaching liquor of defined ClO<-> concentrations, which is then reacted with concentrated hydrochloric acid in continuous flow in a packed column (packed trickle column) while maintaining a pH of from 2 to 5. The chlorate present in the bleaching liquor is not decomposed under these conditions, so that the chlorine escaping at the column head is free of chlorine dioxide.
Patent DE-3305398-A1 (DE)
Title: Device for grinding saw blades
Inventor: WALKE PAUL
IPC: B23D63/14
Filed: 1983-02-17
Abstract: The invention relates to a device for grinding saw blades, in particular circular saws, comprising a holding device for the saw blade and a grinding wheel driven in rotation by a driving motor. The object of the invention is to provide a device for grinding saw blades which is simple and very economical to produce and on which even inexperienced operatives can sharpen the teeth of saw blades easily and rapidly by grinding. The invention solves this object by virtue of the fact that a holding device for the saw blade is arranged pivotably and displaceably on a stand which carries a holding device for the driving motor of the grinding wheel and the grinding wheel itself. In order to be able to sharpen even set saw blades or saw blades provided with alternating teeth, a wedge corresponding to the set can be inserted transversely between the carriage and the saw blade in order to bring the saw blade into a tilted position. <IMAGE>