baber/WOPTO huggingface dataset:
Patent DE-3046392-A1 (DE)
Title: Current controller for inverter feeding motor - periodically suppresses on phase reference in turn using auxiliary signal
Inventor: HENTSCHEL FRANK DIPL ING
IPC: H02M7/525
Filed: 1980-12-05
Abstract: The pulse type inverter (2) supplies current, through a constant voltage intermediate d.c link, to a three phase motor without a star point connection. With this type of connection the current signal feedback (iXA,iXB,iXC) from transducers (3a,3b,3c) in the motor supply leads, tends to be imprecise, since lacking a per phase reference, the feedbacks tend to interact. The triggering instants as set by a regulator (1a,1b,1c) are thus not necessarily at the optimum point for efficient converter operation. This defect is overcome by adding an auxiliary signal to the individual current references (iWA,iWB,iWC). This signal alters the reference to prevent operation of the individual regulator over a defined period thus leaving at any instant only two operative regulators. Typically, this modifying signal lasts 60 electrical degrees around the normal current zero cross-over.
Patent DE-3046638-A1 (DE)
Title: Control switch with two opposite swivelling actuators - has hairpin shaped wire spring, secured to housing and engaging slider with one free end
Inventor: GRINGMANN KLAUS
IPC: H01H23/00
Filed: 1980-12-11
Abstract: The two rockers, or keys, of the switch are swivelably mounted on a common axis. Each cooperates with a switching swing member, mounted in a housing, via switching cams also pivoted in the swivel direction of the rocker(s). The swing members are coupled by a sliding latch reciprocally movable transversely to the movement direction of the cams. One switching cam can bring the slider in the movement path of the other cam, and vice versa, thus preventing simultaneous actuation of the rockers etc. A hairpin-shaped wire spring (12), secured in the housing (3) engages the slider (10) with one free end respectively. The spring ends preferably engage a recess (14) of the slider.
Patent DE-3049122-A1 (DE)
Title: Domestic appliance setting control with bit generator - has positive zero position using logic circuit to prevent input of further pulses
Inventor: SEYER REINHARD DIPL ING
IPC: H03K21/38
Filed: 1980-12-24
Abstract: The manual setting control has a bit generator (1) providing input pulses (I) representing a digital value corresponding to the rotation of the setting knob, used to index a digital counter (6). A logic circuit (12) detects the zero data value and prevents input of further input pulses (I) from the bit generator (1). Pref. the counter count value is fed to a digital zero comparator (13) controlling an electronic switch (5) inserted in the path (18) of the input pulses, the switch (5) being opened when the zero position is detected and reclosed in response to a reset signal (FKT). The count value may also be fed to a visual setting display (10) via a store (7). The setting control can be used for an electric oven.
Patent DE-3111206-A1 (DE)
Inventor: WIEMERS NORBERT DIPL CHEM DR
IPC: C08L7/00
Filed: 1981-03-21
Abstract: This invention relates to adhesive composition. More particularly, this invention relates to adhesive compositions comprising polyamide (I) prepared by condensing dimeric higher fatty acids and monomeric fatty acids with polyether diamines and aliphatic or cycloaliphatic diamines and polyamide (II) prepared by condensing dimeric higher fatty acids and monomeric fatty acids with aliphatic or cycloaliphatic polyamines.
Patent DE-3111630-A1 (DE)
Title: Water craft with pedal-wheel propulsion
Inventor: WEISHAAR FRANZ
IPC: B63H21/175
Filed: 1981-03-25
Abstract: Water craft for accommodating a two-wheeled vehicle with a pedal device for driving a paddle wheel mounted in a floatable frame, in which the front wheel engages in a pivotable channel provided with a rudder and the rear wheel engages in a channel arranged in a fixed position on the floatable frame, and in which the two-wheeled vehicle is mounted upright in the channels by bracing ropes.
Patent DE-3119422-A1 (DE)
Title: Hybrid process having damming material as the final product with utilisation of the waste heat prior to the flue gas desulphurisation
Inventor: HOELTER HEINZ ING GRAD
IPC: C04B28/14
Filed: 1981-05-15
Abstract: In the purification of flue gases from power stations using fossil fuels, in particular coal, dust is only incompletely removed from the flue gas, thus reducing the capital and operating costs for the electrostatic precipitators. In a flue gas desulphurisation plant provided downstream, there results therefrom a widely applicable mixture of calcium sulphate and fly ash. Calcium chloride, likewise resulting from the flue gas desulphurisation, and cement can be added to this mixture. The waste heat from the gas stream to be purified can be used for drying the mixture. The final product is highly suitable for use as a damming material in underground mining operations.
Patent DE-3121697-A1 (DE)
Title: Method of producing a conical tool part by electrical discharge wire cutting
IPC: B29C48/32
Filed: 1981-06-01
Abstract: The invention relates to a method of producing a conical tool part by wire cutting (PA P 3104152.3), where the plane faces of the tool part have different geometrical constructions, and the geometrical constructions can be rotated relative to one another at a predetermined angle.
Patent DE-3129700-A1 (DE)
Title: Wishbone boom for a rig of a windsurfer
Inventor: GERG BLASIUS
IPC: B63B35/79
Filed: 1981-07-28
Abstract: In a wishbone boom for a rig of a windsurfer, with two curved spars which are arranged next to one another and are connected to one another at their ends in each case by means of a U-shaped or V-shaped fitting, the legs of which are in each case provided with an insertion opening for the ends of the spars, the forward fitting in the direction of use being provided with a device for fastening to the mast of the surfboard, and the aft fitting being provided with a device for tightening the head earing of the sail, the legs (S1 and S2) of at least the front fitting (1) are connected to one another by means of a joint in order to avoid a fracture of the spars or the fittings during extreme loads. <IMAGE>
Patent DE-3137225-A1 (DE)
Title: Sensing device for machines for the counting and sorting of hard cash
Inventor: ALLGEIER HANS KURT
IPC: G07D3/14
Filed: 1981-09-18
Abstract: The invention relates to a sensing device for machines for the counting and sorting of hard cash. Machines of this type are capable of automatically sorting cash to be counted according to its value and counting it and of ejecting foreign cash. The criterion for this is the size of the coins which has hitherto been recognised on a running rail by sensing the coins running past by means of mechanical levers. These levers act on electrical switches, via which a signal passes to an electronic unit, in order to actuate the corresponding ejector element for the identified coin. According to the invention, there are used as sensing elements contact springs which are connected electrically conductively to the electronic unit and to which an electrical voltage is applied opposite the running rail. When a spring comes into contact with a coin, a current then flows and an electric signal passes directly, and no longer via an additional switch, to the electrical unit which actuates the corresponding ejector element.
Patent DE-3137511-A1 (DE)
Title: Coupling for track sections of electrically operated toy railways
IPC: A63H19/30
Filed: 1981-09-21
Abstract: The rail joint consists of coupling and current-conducting sheet metal strips which extend displaceably below the foot of the rail and are therefore advantageously invisible, as in the original rails.
Patent DE-3137959-A1 (DE)
Title: Holder, in particular for fastening tarpaulins and panels and covers made from linen or synthetic fibres, and belts
Inventor: BENKENDORFF BERNHARD DIPL ING
IPC: B60J7/10
Filed: 1981-09-24
Abstract: Published without abstract.
Patent DE-3150290-A1 (DE)
Title: Propellent charge powder with a smoothing surface coating
Inventor: STOCKMANN GREGOR DIPL ING
IPC: C06B23/04
Filed: 1981-12-18
Abstract: The particles of a single-base or multi-base propellent charge powder for ammunition are coated with a titanium chelate complex, for example titanium acetylacetonate. The coating is effected by spraying with the dissolved titanium chelate complex and subsequently moving the propellent charge powder at an elevated temperature. As a result of the coating, the bulk density of the propellent charge powder is markedly increased over that of a propellent charge powder surface-treated only with graphite. In addition, the coating also has an effect inhibiting barrel erosion and, in the case of multi-base propellent charge powders, an effect inhibiting exudation. The proportion by weight of the titanium chelate complex is about 2% by weight, relative to the uncoated propellent charge powder.
Patent DE-3200373-A1 (DE)
Title: Process and device for the laying of textile material
Inventor: SCHUIERER MANFRED
IPC: D06B3/26
Filed: 1982-01-08
Abstract: The invention is concerned with the laying of textile material (1) which is wet-treated in strand form. So that, during this wet treatment, the textile material can be relaid at least once in a relatively simple and yet extremely effective way, the strand-shaped textile material (1), before or after being dipped into a liquid bath (5), is subjected to air from below (blowing device 6), with the result that it is laid. In this case, only a relatively small quantity of liquid is needed in the liquid bath. <IMAGE>
Patent DE-3202958-A1 (DE)
Title: Three-phase winding in a mixed star-delta circuit for an electrical machine
Inventor: AUINGER HERBERT DIPL ING DR
IPC: H02K3/28
Filed: 1982-01-29
Abstract: In a fractional-pitch three-phase winding in a mixed star-delta circuit for stators or slipring rotors of an electrical machine, in order to reduce the harmonic components and the copper losses, the inner winding sections are connected by means of equalising conductors in a delta circuit to which in each case two parallel, outer winding sections are connected, in the form of a star, which are offset by 30 DEG  electrical with respect to the delta sections and are connected to the terminals. The spatial splitting of the winding sections is carried out in this case such that a twelve-zone winding arrangement is produced within each pole pair.
Patent DE-3204053-A1 (DE)
Title: Shower cubicle
Inventor: BAUS HEINZ GEORG
IPC: A47K3/00
Filed: 1982-02-06
Abstract: The invention relates to a shower cubicle having a trough, which is pivotable from a horizontal position of use to an at least approximately vertical position of rest, and having side walls which can be pivoted with vertical axes and are preferably hinged to a frame. A shower cubicle of this type requires comparatively little space in its collapsed position of rest. In the position of use, however, the side walls and the trough are pivoted out, resulting in particular difficulties in terms of good sealing. If a shower cubicle of this type is not used in a wet room, but in living areas, for example in conjunction with other built-in furniture, water leaking out of the interior of the shower cubicle must be reliably avoided. On the other hand, a shower cubicle of this type is also to be easy to use and allow expedient adaptation to the respective site of use. It is therefore proposed according to the invention that a front-opening door is arranged on at least one side wall for closing or exposing the entry into the shower cubicle and is preferably hinged on, and that the side walls and the front-opening door can be engaged with the trough in their position of use, and/or means are provided, in such a way that water can drain from the side walls and/or the front-opening door into the interior of the trough. <IMAGE>
Patent DE-3214999-A1 (DE)
Title: Drive device for a double walking-beam furnace
IPC: F27B9/20
Filed: 1982-04-22
Abstract: The invention relates to a drive device for a double walking-beam furnace, e.g. for annealing sheets or other steel products. This drive device has two walking-beam systems lying inside one another which can be lifted and moved forward and subsequently lowered and moved back alternately in relation to one another. For the lifting and lowering movement on the one hand and the forward and backward movement on the other hand, an individual movement mechanism is in each case present. These movement mechanisms can according to the invention be driven via crank gears, the crank gear for the forward and backward movement being equipped with a speed control. This speed control is according to the invention constituted in such a manner that with it the speed of the last-mentioned crank gear can be adjusted downwards or upwards temporarily in one half of its crank circle in such a manner that as a result, in association with the circulating movement of the crank, there is an essentially uniform forward movement of the relevant walking-beam system. In this connection, it can be expedient that the crank gear for the lifting and lowering movement is essentially stoppable temporarily during the forward movement, but possibly also during the backward movement, of the walking-beam system. <IMAGE>
Patent DE-3219431-A1 (DE)
Title: Tennis racket with isotonic strings and hydrodynamic vibration damping
Inventor: SCHAEFER HANS DR MED
IPC: A63B60/54
Filed: 1982-05-24
Abstract: The main cause of chronic illness in the striking arm of tennis players is not the faulty technique of the player, but is to be found in the manner of conventional stringing. This is characterised in that all the strings are of different length and each individual string is fixedly anchored, and this can lead to vibrations in accordance with the laws of vibration and to abrupt fluctuations in tension which act unphysiologically on the striking arm and prepare the way for illness or initiate irreparable damage in the case of continuing effect. The solution is seen in departing from the fixed individual strings, using a single string and the stringing net thus being able to vibrate as a whole, to balance differences in tension immediately, to extend the vibration path or waves and to keep the tension even over the entire net, that is to say to allow an isotonic mode of operation analogously to the working muscle fibre. This is guaranteed technically by the manner of suspension of the net on rings, guiding via a ball joint and damping of the vibrations or filtration of the transverse waves by the interposition of a liquid core.
Patent DE-3223038-A1 (DE)
Title: A movable and adjustable clavichord tangent
Inventor: TROESTER IMMANUEL
IPC: G10C1/06
Filed: 1982-06-19
Abstract: A movable and adjustable clavichord tangent which - in contrast to that fixed in the playing key in the conventional manner - is connected to the key by means of a rotatable pin. During the entire sound duration, it adapts automatically to each string position and key position as it is clamped between these. Irrespective of the relationship of the respective string and key directions to one another, the new tangent always presses the string from the bottom to the top and in no way rubs against the string. The vertical and horizontal starting position of the tangent in relation to the string can be finely adjusted by hand. The unlimited height of the tangent and the optional string direction make possible for the first time the construction of multi-manual clavichords and even clavichords in "grand" form, as a result of which the art of clavichord playing in public receives a considerable boost. In the opinion of the inventor, the new tangent even increases the degree of direct transmission of each touch nuance from the finger to the string.
Patent DE-3225025-A1 (DE)
Title: Device for transferring green split tiles on green tile carriers, especially pallets
Inventor: WIELIGMANN FRIEDRICH ING GRAD
IPC: B65G49/08
Filed: 1982-07-05
Abstract: A device for transferring green split tiles on green tile carriers, especially pallets, consists essentially of a feed belt for the green split tiles, which are disposed longitudinally to the conveying direction, a loading belt disposed at right angles to the feed belt and a transfer station disposed adjoining the loading belt, which transfer station is provided with holding strips for the green split tiles. The holding strips are designed so as to be displaceable back and forth between the loading belt and transfer station, raisable and lowerable and movable horizontally away and towards each other. An immersion table, which can be raised and lowered, for receiving a pallet and a lateral conveyor are disposed below the transfer station. A feed belt for the pallets that are fed to the immersion table after immersion in the lateral conveyor is disposed at the side of the immersion table in the vicinity of the lateral conveyor.
Patent DE-3226037-A1 (DE)
Title: Back-pedalling brake for a cycle with derailleur gears
Inventor: PAESELT ARTUR
IPC: B62L5/00
Filed: 1982-07-12
Abstract: In these cycles, customary manual brakes sometimes operate very inadequately; the foot can apply more force to the brake. In road traffic, better behaviour is possible because one hand can always remain permanently on the handle bars and, if a hand signal is to be given, a foot can always be kept prepared to perform braking or can actually perform braking. This back-pedalling brake takes up power from the large gear wheel with a thread-in mechanism, applies it, after the pinion stops, to the existing brake and can be used without modification of the commercially available design in almost all cycles.
Patent DE-3227686-A1 (DE)
Title: Eyelet
Inventor: KRUEGER LEONHARD
IPC: F16B19/08
Filed: 1982-07-24
Abstract: An eyelet for a flat material (3), consisting of a base body (1) in the form of a disc (2) which can be fitted on one side of the material (3) and has a hollow-cylindrical projection (4) which [lacuna] closing disc (7) which is pushed onto the projection (4) through an opening (5) in the material (3), the free end of the projection (4) which projects over the closing disc (7) being deformed, can be produced very easily and can absorb very large forces if the base body (1) is produced from polycarbonate and the end of the projection (4) is cold formed. <IMAGE>
Patent DE-3234484-A1 (DE)
Title: Process for producing a pull-off resistant cap-sealing at the pulling-in end of a multi-core optical cable
Inventor: HAAG HELMUT DIPL PHYS
IPC: G02B6/44
Filed: 1982-09-17
Abstract: A process for producing a pull-off resistant cap-sealing at the pulling-in end of a multi-core optical cable is intended to permit the cap-sealing of the cable end concerned to be made in such a way as to rule out the risk of fibre fractures caused by strains which occur when pulling in the cable. This is achieved according to the invention by isolating the optical fibres from the effect of the filling compound and by the mechanical frictional contact over the entire cross-section of the cable being effected exclusively by the strain-relief and other elements of the cable mechanically connected to the filling compound.
Patent DE-3234616-A1 (DE)
Title: Method and device for the magnetic detection of material faults
Inventor: SEILER DANIEL
IPC: G01N27/84
Filed: 1982-09-18
Abstract: The method employs marking of the leakage fluxes caused by faults with dry magnetic powder, a yoke magnetisation with a magnetic field extending perpendicular to the longitudinal direction of the bar and parallel to the surface of the workpiece and also near to the surface inside the workpiece being applied, in contrast to the current flow magnetisation technique usual in this connection with its contacting problems. The markings can furthermore be transferred in accordance with position or shape to an imaging medium, in particular by photoelectric scanning and data storage of the fault signals. After the imaging, the marking means can be removed, which makes it possible to use marking means which are free of binders or fixers. A controlled secondary marking of the faults can then be undertaken as a function of the fault imaging without removing the initial fault marking and, optionally, also a selective fixing with corresponding saving of fixer. The device comprises a magnetisation yoke arrangement (J, MP) embodying an alternating flux exciting device and a repeating traversing device with rotating device for covering various circumferential areas of the workpiece. Instead of the latter, a sequence of a plurality of treatment stations (I, II) with marking and detecting devices rotated with respect to one another is suitable. <IMAGE>
Patent DE-3235730-A1 (DE)
Title: Method for monitoring a digital tone generator
Inventor: NAGLER WERNER
IPC: H04M3/24
Filed: 1982-09-27
Abstract: As test receiver, signalling receivers ET or pushbutton receivers existing in any case are used which initiate a comparison of the characteristic codes sent out during the testing of tone generator TG with a corresponding uncorrupted code.
Patent DE-3238250-A1 (DE)
Title: Transformer for thyristor turn-on pulses
Inventor: KOMMISSARI KARL DIPL ING
IPC: H01F19/08
Filed: 1982-10-15
Abstract: Transformers for thyristor turn-on pulses are used in converter circuits for potential isolation between a pulse generating device (6) and a thyristor (7) which is at high-voltage potential. During the changes in the potential difference which occur in use between the primary and the secondary of the transformer (5), a displacement current flows between the windings (1, 2, 3, 4) via the coupling capacitance. In order to avoid interference pulses, an arrangement of additional windings (2, 3) is proposed with whose aid the influence of interference currents (istör) is compensated for such that interference pulses remain safely below a critical threshold. <IMAGE>
Patent DE-3238586-A1 (DE)
Title: Cross-tube cooler
Inventor: BIRKNER ANDREAS
IPC: F28C3/06
Filed: 1982-10-19
Abstract: The invention relates to a cross-tube cooler for cooling gases containing condensable vapours, into which cooler the medium to be cooled is introduced at the top and from which it is extracted at the bottom, the gas flowing around horizontally arranged tube bundles to which the cooling medium is fed at the bottom and from which it is extracted at the upper end of the cooler. According to the invention, the free cross-section, available for the through flow of the gases to be cooled, of the cooler is reduced in the lower part thereof, preferably in the lower half, by drawing in the cross-section to preferably 50 or 40% of the flow cross-section in the upper part of the cooler to the extent of the reduction of the volumetric flow of the gases by cooling and condensing. The drawing-in of the cross-section is performed in a preferred embodiment by constructing a free space (7), which is arranged in the lower part of the cooler and is formed by two walls (10, 11), which extend in the longitudinal direction of the cooler and through which the gas to be cooled flows from the bottom to the top with a two-fold change in the direction of flow by 180 DEG  upon entry to and exit from the space. Furthermore, the tube spacing in the tube packets (a, b, c) in the upper part of the cooler is reduced in steps starting from the gas inlet as far as the section with drawn-in cross-section, and the tube spacing in the cooling spaces (8, 9) of the lower part of the cooler is larger than in the lower tube packets (c or b, c) in the ... Original abstract incomplete. <IMAGE>