baber/WOPTO huggingface dataset:
Patent DE-3732329-A1 (DE)
Title: Process for treating heavy-metal-containing waste waters
IPC: C02F1/52
Filed: 1987-09-25
Abstract: The invention describes a process for treating heavy-metal-containing waste waters (effluents) which is characterised in that fly ash from coal combustion plants is added to the waste water, the pH of which is adjusted to above 8, the heavy metal concentrations are decreased to drinking water values and the COD value of below 100 mg/l is achieved. Furthermore, the process is characterised in that the residue after waste water treatment is deposited as leach-resistant bodies, the fly ash is used from individual electrostatic precipitator stages or in various mixtures of the filter stages with each other, in that portions of unburnt fuel of 1-20% are co-used, sewage sludges or other materials predominantly containing finely divided silicates, clays, mica etc. are co-used and the salt concentrations are decreased.
Patent DE-3736408-A1 (DE)
Title: Load-bearing or suspension device for cables, pipelines and the like
Inventor: LENZEN KLAUS DIPL ING
IPC: F16L3/26
Filed: 1987-10-28
Abstract: A load-bearing or suspension device for cables, pipelines or the like exhibits shafts which are in the form of bars and each bear, on the end side, a transversely running, laterally projecting head plate which is provided with devices for fastening on protruding threaded bolts which are fixed to a wall and which are anchored in a floor, ceiling or wall of a building. In this arrangement, the shafts are configured as cylindrical tubes and bars which bear a head plate which is in the configuration of a cylindrical disc. Each shaft exhibits, in the region of the head plate, a threaded bore which is coaxial with respect to the longitudinal axis of the shaft; by means of said threaded bore, it is screwed onto a threaded bolt which is fixed to a wall. Finally, the load-bearing and/or fastening devices for the cable pipelines and the like or for channels, platforms etc. which support or receive the same, are fastened on the shafts by means of clamping devices which engage at least partially around said shafts.
Patent DE-3738220-A1 (DE)
Inventor: GEIST MICHAEL DIPL CHEM DR
IPC: C08J3/07
Filed: 1987-11-11
Abstract: The invention concerns a process for producing aqueous dispersions for subsequent processing to electro-dipcoat enamels with stoving temperatures less than 160 DEG C and stoving times less than or equal to 30 minutes. These dispersions contain binders in the form of modified epoxide and amine adducts and crosslinking agents in the form of polyisocyanates blocked with amino groups. In this process, polyepoxides and compounds containing one or more, preferably two, hydroxyl groups per molecule are converted at high temperatures by catalysis to epoxide-containing intermediate products. A solvent or solvent mixture is added under external cooling and a solution is boiled under reflux, if necessary under vacuum, until the temperature is reduced to between 95 DEG C and 20 DEG C. Amines are then added to the free epoxide groups still present in the epoxy resin and a dispersion is produced after addition of the crosslinking agent by addition of a water-acid mixture or a dispersion is first produced and a crosslinking agent then added.
Patent DE-3738883-A1 (DE)
Title: Repositioning device
Inventor: FUCHS VICTOR
IPC: A61G7/10
Filed: 1987-11-16
Abstract: In a repositioning device for patients with a displaceable plate and a transport belt covering the latter, the end of the transport belt which is remote from the winding-up device can be selectively anchored on the displaceable plate or on the plate guide or mounting, so that the top strand of the belt moves along with the plate when the latter is displaced, or else remains stationary.
Patent DE-3741784-A1 (DE)
Title: Circuit arrangement for overload protection of stabilisation circuits in rectifier arrangements
Inventor: LAUER WALTER DIPL ING
IPC: G05F1/573
Filed: 1987-12-10
Abstract: In known stabilisation circuits having short-circuit current limiting, even if these are configured for retrograde self-reducing short-circuit currents, a relatively high short-circuit current flows, in each case depending on the resultant resistance ratios, which causes a considerable power loss and, therefore, heat generation. Depending on the dimensioning of such a circuit arrangement, it can happen that a transition into the normal operating condition is not immediately possible upon removal of a short-circuit. Additional switching means are connected to the control transistor in order to reduce the short-circuit current further, and in order to make possible an automatic re-starting of the circuit arrangement, i.e. a transition into the normal operating condition. By this means, the control transistor is fully switched off, so that current no longer flows initially if a short-circuit occurs. These additional switching means are driven by means of a half-wave of the a.c. voltage on the input side, so that the control transistor can be switched through briefly at periodic intervals. By this means, the circuit arrangement can return into the normal working region when the short-circuit has been removed. The circuit arrangement effects such an extensive reduction of the r.m.s. value of a short-circuit current generating a thermal loss, that the costs of cooling measures can be significantly lowered. An automatic transition into the ... Original abstract incomplete.
Patent DE-3744771-A1 (DE)
Title: Device for expressing gaseous and/or liquid media out of bulk and/or pourable materials
Inventor: SCHOTTEN ALFONS DIPL ING
IPC: B01D25/30
Filed: 1987-11-28
Abstract: In a device for expressing media out of bulk and/or pourable material in a horizontal row of pressing chambers, each pressing chamber having a pair of pressing walls which extend in vertical planes and each delimit a gap between them, one pressing wall of a pressing chamber and one pressing wall of an adjacent pressing chamber in each case being formed at a distance from a pressure body which connects the two pressing chambers, it is proposed that at least one pressing wall (42) be composed of a pressing element (45) which is held on the pressure body (40) and can be displaced horizontally independently of the pressure body (40). <IMAGE>
Patent DE-3801867-A1 (DE)
Inventor: SCHAFHAUPT HORST DIPL ING
IPC: F16L55/02
Filed: 1988-01-22
Abstract: The sound deadening device inserted in a duct through which pass dust laden gases is made from sheet material and is divided horizontally from end to end into two equal halves (1,2) each containing a mineral fibre layer (8) with a metal wire mesh between the two layers. Inside each space above and below the two layers are sloping cross partitions (14) forming chambers (5) from front to rear. Each space is formed by two S-shaped side sheets (10), the inner horizontal flanges of the upper and lower side sheet being connected by bolts. All these elements are included between upper and lower end sheets (11) with horizontal top and bottom flanges to which are attached semicircular flow guiding sheets (22,23).
Patent DE-3806689-A1 (DE)
Title: Internal combustion engine with applied ignition
Inventor: KLAUE HERMANN DR ING
IPC: F02B33/06
Filed: 1988-03-02
Abstract: The invention relates to a two-stroke internal combustion engine with applied ignition, which has 2n cylinders and oscillating piston scavenging devices on both sides of each 2-cylinder bank. The scavenging pistons are driven by a crank drive, accommodated in the middle between the cylinders, in such a way that the said drive is provided for the oscillating piston of one side and the oscillating piston of the opposite side is driven by a linkage arranged between the working cylinders. <IMAGE>
Patent DE-3810778-A1 (DE)
Title: Grip binding for sports equipment
Inventor: ZINNER HANS
IPC: A63B60/14
Filed: 1988-03-30
Abstract: In order to improve handling, a grip binding is proposed for sports equipment, especially tennis rackets, in which the binding 1 is chamfered along one or both edges 2, 3 and is provided on its underside with an elastic layer 4. <IMAGE>
Patent DE-3814186-A1 (DE)
Title: Method for the production of delivery and/or guiding devices for hydrodynamic machines and a radial rotor, especially a coolant pump impeller for internal combustion engines, produced by this method
Inventor: SPINDELBOECK DIETER
IPC: F04D29/22
Filed: 1988-04-27
Abstract: In a method for the production of delivery and/or guiding devices for hydrodynamic machines, the delivery and/or guiding devices being produced with blades arranged on the outer circumference of a ring- or disc-shaped part by means of radial connecting webs, the blades are arranged relative to the blade carrier in a process which involves the permanent deformation of the connecting webs. To achieve a design of radial-flow delivery and/or guiding devices for hydrodynamic machines which is optimised in terms of efficiency and, at the same time, is of simple construction, the proposal is that the connecting webs should each be arranged on the blade carrier over as small as possible a cross-section and that the blades should be arranged in positions axially adjacent to the blade carrier to form a radial-flow delivery and/or guiding device, this being achieved by successively swivelling the connecting webs in different ways or three dimensionally by means of bending and twisting them at their smallest cross-sections. <IMAGE>
Patent DE-3814394-A1 (DE)
Title: Vertically adjustable lifting support for supporting the drive end or return end of a mining conveyor, in particular a conveyor for stowage material or the like
Inventor: DODT JUERGEN
IPC: B65G21/12
Filed: 1988-04-28
Abstract: The vertically adjustable lifting support (1) according to the invention serves as a telescopic substructure for the drive end or return end (11) of a mining conveyor, in particular a conveyor for stowage material suspended on the powered support of a coalface. The lifting support comprises the supporting base (2) which is supported on the floor (4) and is formed, for example, from an outer box, and at least one telescope stage (5, 6) which can be extended upwardly from the supporting base (2) and is formed by an inner box or the like. The extendable telescope stage is mechanically locked against lowering with the aid of a mechanical locking apparatus (12 to 17). The locking apparatus comprises preferably locking catches (falling catches 14) which engage in bolt recesses (elongate holes 12) in the telescope stage and thus lock the extended telescope stage. When there is a plurality of telescope stages (5, 6), every single telescope stage is assigned a mechanical locking apparatus. <IMAGE>
Patent DE-3829682-A1 (DE)
Title: Device for removing the shavings during the trimming of a stack of books or unbound books in three-knife trimming machines
Inventor: SCHAEFFER JOHANNES
IPC: B26D7/18
Filed: 1988-09-01
Abstract: The invention relates to a device for removing the shavings 19 during the trimming of a stack 1 of books or unbound books in three-knife trimming machines by means of blown air, characterised in that immediately behind the cutting strip 7 there is arranged at least one nozzle 8 for blown air. <IMAGE>
Patent DE-3832445-A1 (DE)
Title: Device for low-loss switching-load reduction in pulsating operation
Inventor: POTAKOWSKYJ PETER
IPC: H03K17/0814
Filed: 1988-09-23
Abstract: A switch-off unloading network (AEW) for an electronic switch (S) is formed by a series circuit of a parallel capacitor (CP) and a parallel diode (DP) in parallel with the switch (S), the output of which switch is connected via a bridge capacitor (CB) and a bridge diode (DB) in parallel to a freewheel diode (DF). A series circuit of a charging diode (DL) and a charging coil (LL) connects the parallel branch with the bridge branch (CP, DP; CB, DB). The capacitors (CP, CB) are effective in parallel during the switch-off. During subsequent switch-ons, they (CP, CB) are recharged and are connected in series. The switch-off unloading network (AEW) is thereby again prepared for switching off and no intrinsically associated losses arise. In pulsating operation, the current through the freewheel diode (DF) is zero if the switch (S) is not yet switched on. A blocking diode (DS) prevents the parallel capacitor (CP) from being recharged from the difference of the input voltage (U) and the load voltage and the bridge capacitor (CB) from being charged from the load voltage. In the event of subsequent switching on, the parallel capacitor (CP) would otherwise no longer be discharged and a voltage deteriorates the efficiency of the switch-off unloading network (AEW) or makes it ineffective for the switch (S). <IMAGE>
Patent DE-3834719-A1 (DE)
Title: Device for adjusting the gap of a nozzle arrangement
Inventor: POECKENTRUP THOMAS
IPC: B29C48/08
Filed: 1988-10-12
Abstract: The nozzle gap (16) of a nozzle arrangement is adjusted by means of air-cooled and electrically heated thermal bolts (5) which have a claw (4) at one end and an adjusting screw (2) at the other end. The adjusting screws (2) of the thermal bolts are screwed into a threaded block (8) which in turn is screwed to a collar (13) of the nozzle body (12). The claws (4) of the thermal bolts (5) enclose a latch-like nozzle projection (22) close to the top nozzle lip of the nozzle arrangement and are connected to the nozzle projection (22) by means of releasable tapered pins (6). <IMAGE>
Patent DE-3844699-A1 (DE)
Title: Built-up shaft
Inventor: AMBORN PETER DIPL ING
IPC: F16D1/08
Filed: 1988-09-14
Abstract: The invention relates to a built-up shaft with pieces of tube or hollow journals and driving or bearing elements fixed positively or non-positively thereon, especially a crankshaft. A plug matched to the cross-section of the through opening in a coupling or guiding element is inserted under radial prestress and in axial alignment with the coupling or driving elements at least at one open end, in each case, of a hollow journal or piece of tube. <IMAGE>
Patent DE-3903015-A1 (DE)
Title: Testing device for the insertion of cartridges
Inventor: HAEUSER HERBERT PHILIPP
IPC: B41J35/28
Filed: 1989-02-02
Abstract: The invention relates to a device for testing the proper association of cartridges or the like with machines operating with said cartridges. To achieve a simple and expedient constructional form, it is proposed that a projection on the cartridge be subdivided into individual regions of different inclination, which regions must correspond to blocking elements which can be pivoted individually and are under the effect of a spring in each case, so that, when the projection corresponds to the blocking elements, the latter move out of a blocking position and assume a pivoted position which allows them to be displaced longitudinally. <IMAGE>
Patent DE-3903221-A1 (DE)
Title: Foot-pedal yoke for foot pedal and hi-hat
IPC: G10D13/00
Filed: 1989-02-03
Abstract: The foot-pedal yoke serves as an addition for all single-pedal foot pedals and hi-hats and is easy to mount (1). The foot-pedal yoke consists of a non-resilient steel band and is in a wider sense bent in an S-shape. The tip has a raised treading point (3) and has on the opposite side a small bearing surface in order to produce low friction on the foot pedal. At its end, the foot pedal yoke is fastened easily movably on the pedal bearing by means of plastic bushes (2). As a result of a necessary rocking movement of the foot, the foot-pedal yoke is operated alternately with foot toe and heel so that, with the pressure on the pedal, it brings about a rapid sequence of two or more blows, or pulls in the case of the hi-hat. <IMAGE>
Patent DE-3917016-A1 (DE)
Title: Safety tube for connecting dishwasher etc. - connection fitting contg. valve with inflow and outflow nipple and pressure tube on outflow nipple
Inventor: SANDT BURKHARD DIPL ING
IPC: D06F39/08
Filed: 1989-05-24
Abstract: Safety tube is for connecting a water conducting household machine eg. a washing machine, by means of a pressure tube covered by an envelope tube and a connection fitting. The fitting contains a valve inside a housing. The valve has inflow- and outflow-nipples, the pressure tube mounted on the outflow nipple and connecting sleeve of the envelope tube. The outer jackets of the inflow nipple and the connection sleeve have annular raised points and/or notches, which engage in corresponding annular notches and/or raised points in the housing surrounding the connection fitting. ADVANTAGE - Keeps traction and pressure forces away from the tube connections.
Patent DE-3918857-A1 (DE)
Title: Binder for sand cores and moulds esp. for light metal casting
Inventor: GARDZIELLA ARNO DR
IPC: C08G18/18
Filed: 1989-06-09
Abstract: Moulding materials are made from a granular material and a binder comprising (i) a phenolic novolak with a mol.  ratio phenol:formaldehyde of 1:0.25 1:0.5 and having formula (I) in which R, R1, R11 (same or different) = H, 1-12C (cyclo)alkyl gp(s), OH or a condensed ring, x = 0 or a whole number (1-4) such that the mol. distribution based on the variation in x is 20-55%, x = 0, 15-30% x = 1, 10-30% x = 2, 0-50% x = 3 and 0 2.5% x greater than or equal to 4 and (ii) a polyisocyanate, and are hardened with the addn. of amine catalysts.
Patent DE-3927329-A1 (DE)
Inventor: MOST EGBERT
IPC: B05C11/04
Filed: 1989-08-18
Abstract: In an apparatus for coating a material web (2), in particular a web of paper or cardboard which is guided about an opposite roller (3) and has a scraper blade (6) which can be pressed against the opposite roller (3), piezotranslators (16) arranged over the width of the cutter are used in order to set the contact pressure in individual areas. 
<??>The piezotranslators (16) preferably act indirectly on a support strip (7) with a path transmission ratio of between 1:1 and 10:1, in particular approximately 4:1. 
<IMAGE>
Patent DE-3930039-A1 (DE)
Title: Catheter infection prophylaxis - by flushing with mixture of antibiotics and protease
Inventor: PALM UELO-AARNE
IPC: A61M39/16
Filed: 1989-09-06
Abstract: It is estimated that 20000 patients die in the USA every year due to infection caused by catheters. A drastic redn. of this hazard is achieved by using a device (1) made of plastic material, for filling the catheter before every use with an antibiotic agent mixed with a protease. The device has two spaces. The first (3) is filled with a protease, e.g. alpha-chymotrypsin and is temporarily closed by a membrane (8) at the female thread (6) and cone (77) for joining to the catheter. An intentionally weak spot (13) in the partition (2) between this space and the second space (4) is burst by retracting the plunger (16). This results in mixing with the contents of the second space, e.g. an antibiotic or chemotherapeutic agent such as gentamycin. ADVANTAGE - This disposable device has been proved to be nearly 100% successful in animal experiments.
Patent DE-3930861-A1 (DE)
Title: Position controller for gear grinding machine - uses sensor to accurately position grinding head in gear tooth groove
Inventor: BORCHARDT FOLKER DR SC TECHN
IPC: G05B19/18
Filed: 1989-09-15
Abstract: The gear grinding head has a double cone construction (5) and is mounted on the machine with a proximity sensor (6).  This aligns the grinding tool into each gear teeth gap and ensures that the edges of the teeth are accurately processed.  The processor control operates on the two output signals from the sensor using a differential amplifier, a rectifier and a programmed signal. The position control is by servo drives in three axes. One of the drives rotates the gear wheel.  The programmed control is updated by the values of the position settings to allow subsequent position movements with a minimum of delay. ADVANTAGE - Fully automatic position control, no manual control required, minimum risk of tool/workpiece damage.
Patent DE-3932847-A1 (DE)
Title: Safety razor with self-driven blade oscillation - has swashplate driven by friction wheels resting on skin to oscillate blade sideways
Inventor: GRUENBERG KARL FRIEDRICH VON
IPC: B26B21/38
Filed: 1989-10-02
Abstract: The razor blade (2) is held in the carrier (1) which can move from side-to-side on the sliding surface (6) of the razor head (7). Protruding through an aperture (5) is an inverted U-shaped bracket (3) attached to the carrier and engaging with the rim of a swashplate (10) on a through shaft (9). On the ends of the shaft are secured friction wheels (8) of dia. sufficient to allow contact with the skin.  When the razor is drawn over the skin the swashplate is rotated and causes the blade to oscillate from side-to-side. USE/ADVANTAGE - Safety razor with oscillating blade gives greater shaving comfort.
Patent DE-3934803-A1 (DE)
Title: Dental cement with adhesion to dentine - comprises two-component system with inorganic cpd. and acid component and contains unsatd. polymerisable monomers
Inventor: KACHOLDT HELMUT DR
IPC: C08F2/00
Filed: 1989-10-19
Abstract: The prodn. of a self-curing or self- and light-curing compsn. (I) by mixing 2 components, comprising (a) an inorganic cpd. and (b) an acid component; the mixt. contains polymerisable cpds. with at least 1 double bond (II). Pref. component (a) is metal oxide or a mixt. or melt of metal oxides, silicate or fluorosilicate; (II) are (meth)acrylate esters, pref. hydrophilic (meth)acrylate esters or corresp. hydrophobic esters with a solubiliser (pref. a hydrophilic (meth)acrylate ester); acid component is H3PO4 or an organic acid, e.g. polyacrylic acid or a co- or ter-polymer of (meth)acrylic acid with maleic, fumaric, tiglic, itaconic acid, etc., (I) is produced by mixing a powder and a liq. or by mixing 2 pastes. USE/ADVANTAGE - (I) is useful as a dental cement (for filling cavities and cementing plastic, ceramic or metal attachments onto teeth) and as a surgical repair and bone-replacement material. The combination of glass-ionomer cement and chemically-cured or light-cured polymer gives a fast-setting composite system with long working time, which bonds to dentine by means of the GI component and to composite filling materials by means of the polymerisable component, the system is therefore useful esp. as a lining material under composite restorations, since the bond strength between (I) and composite is in the range of enamel-composite bond strengths obtd. by using the acid-etching technique.
Patent DE-3935672-A1 (DE)
Title: Flow measurement arrangement for medical infusion devices - has transparent flow chamber contg. flat spring and deflection measurement arrangement
Inventor: BREIMEYER DIRK
IPC: G01F1/22
Filed: 1989-10-26
Abstract: The flow measurement arrangement has a transparent housing (24) with an inlet on one side, an outlet on the other and a chamber between. The top of the chamber is curved and a flat spring (36) of nontransparent material is fixed to the bottom. The spring fills the entire height of the chamber and its free end reaches almost to the top. An electrical measurement device (46) detects and indicates the bending of the flat spring. USE/ADVANTAGE - For flow measurement in medical infusion devices simple and cheap to make yet achieves high measurement accuracy.
Patent DE-3936656-A1 (DE)
Title: Release device for electrically-operated lock - uses key card with iron inserts cooperating with permanent magnets in current circuit
Inventor: SCHREIBER HANS DR MED DR MED
IPC: G07C9/00
Filed: 1989-11-03
Abstract: The release device  has a key card (1) with a number of iron inserts (2,2') used for closing a current circuit associated with individual magnets.  The current circuit has closing and opening devices (38,39) supported in a holder (11), each associated with a  respective permanent magnet (3), each of which is abutted by a insert (2,2') of the key card (1).  The electrical terminals of the current circuit are coupled to an electromagnetically operated locking bolt. Pref. the permanent magnets (3) are blocked by a cover plate (8) which defines an insertion recess for the key card (1). USE - For automobile car door lock.