baber/WOPTO huggingface dataset:
Patent DE-3839663-A1 (DE)
Title: Device for connecting two machine parts, in particular two tool parts of machine tools
Inventor: SCHEER GERHARD
IPC: B23B31/107
Filed: 1988-11-24
Abstract: A device for connecting two tool parts exhibits, on one tool part, a cylindrical adapter pin (2) and an annular surface (3). The other tool part (4) is provided, in order to receive the adapter pin (2), with an adapter bore (5) and an annular end surface, and it exhibits two diametrically opposite, radially running screws (14, 13) provided with in each case one ball (17) or a conical depression (15). In a transverse bore (6) of the adapter pin (2) there may be radially displaced a clamping bolt (7) which exhibits, at one end, a conical depression (8) which interacts with the ball (17) of one screw (14) and, at the other end, a ball (9) which interacts with the depression (15) of the second screw (13). The two balls (9, 17) are each rotatably mounted in a ball socket (10, 16) of the clamping bolt (7) or of the screw(s) (14). Upon tightening of one of the screws (13, 14), the latter act on the clamping bolt (7) with the effect of annular surface (3) and end surface (11) pressing upon one another. <IMAGE>
Patent DE-3905721-A1 (DE)
Inventor: TOMASEK JAN
IPC: A47K3/34
Filed: 1989-02-24
Abstract: The invention describes a sliding door (10) for showers, which has a frame and a plurality of sliding door leaves (11, 12, 13). The sliding door leaves (11, 12, 13), which are guided displaceably on the upper beam (15) of the frame, are all set obliquely relative to the longitudinal axis of displacement determined by the upper beam (15), such that only a small dimension results in relation to the transverse dimensions of the entire package of sliding door leaves (11 to 13) which have been pushed together. The overall design can thus be of relatively small and delicate construction. The frame profiles can be of correspondingly small dimensions without the risk of the sliding door leaves (11 to 13) projecting laterally beyond these frame profiles. <IMAGE>
Patent DE-3907383-A1 (DE)
Inventor: WAGNER HERBERT DR ING
IPC: C22B9/05
Filed: 1989-03-08
Abstract: The present invention relates to a gas-flushing installation for introducing gases into metallurgical vessels, consisting of
 a) a gas-bubble brick (1), provided with gas-bearing channels (2), in the form of two superposed circular truncated cones, of which one concentrically surrounds the other, of refractory material,
 b) a metal layer (6) surrounding the outer and inner shell surfaces of the gas-bubble brick and its base surface (5),
 c) a gas feed (7) arranged centrally on the metal-coated base surface (5) of the gas-bubble brick (1) in the form of a circular truncated cone,
 d) two mutually separate chambers, of which the inner one bears gas and the outer one does not bear gas, and
 e) a perforated brick (8) surrounding the metal-coated shell surface of the gas-bubble brick (1) in the form of a circular truncated cone. 
<??>The invention is characterised in that the upper end (9), not surrounded by the perforated brick (8), of the truncated cone protrudes beyond the ladle bottom lining (10) into the interior of the ladle, and that the perforated brick (8) and the gas-bubble brick (1) seated therein are provided with an outer envelope (11) of cast or tamped refractory material. 
<IMAGE>
Patent DE-3909785-A1 (DE)
Title: Method for grinding a polygonal cone on a numerically controlled grinding machine
Inventor: WEDENIWSKI HORST JOSEF DR ING
IPC: B24B19/08
Filed: 1989-03-23
Abstract: A method serves for the grinding of a cone (14a), the radial cross-sectional area of which has the shape of an n-sided polygonal profile with preset eccentricity and preset arithmetic mean Dm of the diameters of the circumcircle and the incircle of the polygonal profile. A grinding wheel (40a) which is rotatable about a first axis (42a) acts along a common surface line (41a) on a workpiece blank (46a) which is rotatable about a second axis (43a). The axes (42a, 43a) intersect in an acute angle ( lambda ). The grinding wheel (40) performs an oscillating movement, whereby the surface line (41a) is translated in the plane defined by the axes (42a, 43a) with the n-fold frequency of the rotational movement of the workpiece blank (46a) and with an amplitude corresponding to twice the eccentricity. In order to be able to grind a polygonal cone (14a) using a grinding wheel capable of being industrially manufactured and having a straight surface line (41a), the radial cross-sectional areas of which polygonal cone are approximated as closely as possible to the orbiform-curve profile according to DIN 32711 which is ideal from the point of view of the strength of material, the amplitude is set with an eccentricity e' obeying the relation <IMAGE> where Dm2 is the arithmetic mean of diameters of the polygonal profile at the pointed end of the cone (14a) and  beta max is a preset angle of preferably 14@ (Fig. 12). <IMAGE>
Patent DE-3913143-A1 (DE)
Title: Automatic soldering or welding unit for small parts - has hydrogen oxygen gas mixt. plus alcohol gas, if required, fed under pressure to workpiece location
Inventor: DEUSCH HELMUT
IPC: B23K3/06
Filed: 1989-04-21
Abstract: Soldering or welding unit esp. for automatic processing of small components utilises a stream of pressurised heated gas, more specifically hydrogen and oxygen, which is fed via piping (4) to a torch nozzle (9) directed at the soldering or welding position. The tubular section of the nozzle is eccentrically mounted on the unit relative to its vertical axis (5) about which it is swivable. The solder in wire form (41) is fed from an exchangable magazine (37) via an automatic advancing unit (55). The nozzle  movement and solder wire feed are program controlled.  The gas mixte is produced by the electrolysis of mineral-free water. Hydrocarbon gas, e.g. alcohol gas, can be fed along with the combustion gas mixture in order selectively to adjust the flame temp.' ADVANTAGE - The soldering or welding head design facilitates compact, intensive action at the soldering or welding points, rapid progression of the individual processes, improved application of soldering flux and the elimination of oxydation reaction during working.
Patent DE-3915779-A1 (DE)
Title: Phase-shift keying signals identification system - using evaluation of statistical distribution of phase difference values obtained from sampled phase values of received signal
Inventor: JONDRAL FRIEDRICH DR
IPC: H04L27/22
Filed: 1989-05-13
Abstract: The identification system uses the statistical  distribution of the phase difference values for each pair of spaced sample values of the momentary phase of the received signal, converted into the base band. Pref the sample values of the momentary phase are obtained in synchronism with a sampling signal, which pref has a variable dock frequency. The phase difference values may be obtained by comparing each 2 successive sample values and the histogram for the obtained difference values is compared with that for a reference distribution. ADVANTAGE - Reduced complexity.
Patent DE-3917707-A1 (DE)
Title: Electronic chip module - with contacting provided by thickened chip connection regions opposite reed contacts
Inventor: ROHDE VOLKER
IPC: H01L23/498
Filed: 1989-05-31
Abstract: (A) An electronic module, used esp. in a chip card, has a semiconductor element fixed on a carrier including a plastic foil which has openings and a metallisation divided into read contacts, connection regions on one of the semiconductor element faces being contacted with the read contacts via the openings. The novelty is that the element (1) is fixed onto the side of the foil (2) opposite the read contact (3) side and its connection regions are thickened by bumps (8) which project into the openings (6). (B) Processes for prodn. of the module are also claimed. Contact between each bump (8) and the associated read contact (3) may be produced by a solder bridge (9) of Sn, Sn/Pb or In/Pb formed by a fusible solder paste. Alternatively, contact may be produced by electrolytically thickening the read contacts (3) with In (alloy) by directly contacting the bumps (8) with the read contacts (3) or by electrolytically thickening the bumps (8). ADVANTAGE - The module is mechanically robust, is readily produced in flat form and is inexpensive.
Patent DE-3918212-A1 (DE)
Title: Process and apparatus for recovery of nitrogen oxides from industrial plants
Inventor: ZUBIZARRETA ENRIQUEZ JOSE IGNA
IPC: B01D53/14
Filed: 1989-06-03
Abstract: The invention relates to a process and an apparatus for recovery of oxides of nitrogen formed in industrial plants. The oxides of nitrogen are here absorbed in concentrated sulphuric acid in a first stage. In a second stage, desorption of the oxides of nitrogen contained in the sulphuric acid takes place by means of entrainment of the oxides in a stream of air and/or steam.
Patent DE-3921268-A1 (DE)
Title: Tongs for manipulating circular or cylindrical objects - consists of three arms of equal length pivot on points triangular housing
Inventor: SCHMITZ HANS-JUERGEN
IPC: B25J15/10
Filed: 1989-06-29
Abstract: The tongs are used for manipulating circular or cylindrical objects. They consist of three arms (4) of similar length pivoted on the ends of an equilateral triangular housing. The inner ends of the horizontal arms (4) swivel on the pivots (6) and are driven in a synchronised movement by a motor. The free ends of the arms (4) are fitted with vertical spigots (7) for gripping the objects. USE/ADVANTAGE - By smiple diametric adjustment an equal centring of the object is ensured.
Patent DE-3921878-A1 (DE)
Title: Multi-rod deep earthing device for lightning conductor - consists of sections of rod jammed together with double tapered coupling pieces having partly milled edges
Inventor: KRAUSE WINFRIED
IPC: H02G13/00
Filed: 1989-07-04
Abstract: The ends of the respective rods (1,2) facing each other incorporate deep tapered recesses (3) shaped to fit the ends (5) of the coupling piece (4) which is inserted between them. At the ends of the tapered portions (5) where these meet the central cylindrical portion of the coupling (4), the entire circumference is milled with striations (6) inclined at an angle, advantageously of 30 deg. to the lengthwise axis. The coupling (4) is driven home by an impact on the free end of the upper rod (2). Successive rods may be added and coupled in the same manner until a sufficient length is attained for burial to the required depth. ADVANTAGE - Reliable electrical interconnection of individual elements of earthing device is guaranteed and cannot be broken by impact. (5pp Dwg.No.1,2/4)
Patent DE-3923463-A1 (DE)
Title: Lift up hanging tab for containers - has hole in plastics element for fitting onto attachment on container
Inventor: MANA REY CESAR
IPC: A61M5/14
Filed: 1989-07-15
Abstract: The lift-up hanging tab for plastics containers, e.g. as used for dispensing serum, medicines etc. is basically a one-piece plastics member which has a flat tab with at least one hole (4) through which it is connected by welding, gluing, riveting or the like on at least one attachement base (E) of the container. The tab is provided on at least one edge with an arcuate wing (2) which extends to form the actual hanging tab of the container.  The tab can have two sections (1,2) divided by a partition (3). USE/ADVANTAGE - The lift-up tab can be easily fixed to the attachment on the container which in turn can be formed as the container is produced.
Patent DE-3926829-A1 (DE)
Title: Capsule holds chemically active materials under water - until progressive discharge enables float to overcome residual wt.
Inventor: BORN GUENTER HEINRICH
IPC: E02B15/04
Filed: 1989-08-14
Abstract: A capsule with a beaded lower rim round the hole in its base is charged with material such as lime or algae-killing material and sunk to the bed of the sea, lake, canal, harbour etc. so that material can dissolve and seep out to produce desirable effects on bed and/or at intermediate levels. The capsule is topped by a float which when sufficient internal material has escaped can take the capsule to the water surface, esp. to be collected and recharged. The capsule base may instead hold microphones, cameras, meters, transmitters or other appts. for underwater observations. ADVANTAGE - Varying dimensions can alter time spent by capsule under water.
Patent DE-3942668-A1 (DE)
Inventor: CUSTRO SERGIO
IPC: C08L53/02
Filed: 1989-12-22
Abstract: Block polymer compositions comprise:   (a) a linear copolymer constituted by four alternating blocks, represented by formula (I) or (II> B1-T-A1-B2-A2 (I> or  B1-A1-B2-T-A2 (II> wherein:  B1 and B2 are polydienic preferably polybutadienic blocks;  A1 and A2 are polyvinylaromatic, preferably polystyrenic blocks; T is a portion of random copolymer formed by dienic and vinylaromatic monomer units; (b) a linear copolymer consitituted by two blocks, represented by formulae (III) or (IV> B3-T-A3 (III> or  B3-A3  wherein:  B3 is a polydienic block;  A3 is a polyvinylaromatic block;  and  T has the above meaning.   The polymeric composition, which can be blended with polystyrene, can be obtained both by blending the individual components, and by means of novel and original synthesis processes which make it possible both (A) and (B) components to be obtained simultaneously. The compositions have good impact strength, transparence and processability.
Patent DE-4005962-A1 (DE)
Title: Straightening machine for anode rods - has straightening jaws and rotating unit to turn the rods in the straightening position through 90 deg.
Inventor: COLLET ERWIN
IPC: B21D3/16
Filed: 1990-02-26
Abstract: Machine for straightening anode rods suspended from an overhead track has the novelty of a rotatable unit (14) positioned with its drive (15) below the straightening jaws (6,7) The unit can rotate the anode rods through 90 deg. A rotating table (18) vertically adjustable by a lift cylinder has forked projections (26) whose openings can be aligned with the spade ends (4) on the lower ends of the anode rods. The jaws (6,7) are moved by a drive (8) comprising a double-acting hydraulic thrust-piston system which is coupled to the jaws by a toggle joint arrangement.
Patent DE-4006453-A1 (DE)
Title: Electrical vacuum switching tube - has actuator mechanism with electrical power transmitted to spindle via spring contact element
Inventor: HOEGL VITUS
IPC: H01H1/58
Filed: 1990-03-01
Abstract: The electrical vacuum switching tube (4) has an axially movable shaft (40) that connects with the internal contact elements. The operating mechanism has an outer sleeve (24) that provides a pivot point support (22) for a power carrying element (18) with a pivoted link (20) that can be moved to select switch states. Good electrical contact between the element and the actuator spindle is provided by a bush with contact fingers that have profiled tips. Springs (34) provide a bias force. ADVANTAGE - Ensures that good electrical contact is obtained.
Patent DE-4010347-A1 (DE)
Inventor: JURJEVIC IVAN DIPL ING
IPC: H01R43/20
Filed: 1990-03-28
Abstract: The invention concerns a device for the production of connectors, in particular for leads for use in motor vehicles. The ends of the leads are each fitted with contact elements which can be inserted in at least one plane into a connector device to form force-locking connections. The wire-assembly device has a symmetrical belt conveyor (BT) running at right angles to the insertion plane (STE) and parallel to the central axis (MA) of the device, by means of which first and second workpiece carrier housings (GHx, y, z) and (GHa, b, c) can be displaced independently of each other into the insertion plane (STE). Wire-assembly devices of this kind are used for the production of connector leads.
Patent DE-4010996-A1 (DE)
Title: Hydraulically actuated roll bar for motor vehicle - are synchronised by opening and closing supply valves at same frequency
Inventor: JOST MICHAEL
IPC: F15B11/22
Filed: 1990-04-05
Abstract: The motor vehicle is fitted with two hydraulically actuated roll bars (1). Each roll bar is actuated by an individual hydraulic cylinder (3, 4). Both hydraulic cylinders are supplied with hydraulic fluid from a common pump (6) but each hydraulic cylinder is supplied through a separate flow control valve. These valves (10, 11) are operated so that each valve is alternately opened and closed with the duration of the opening period being the same for both valves and the frequency of opening and closing also being the same for both valves. In this way the operations of the two roll bars are synchronised with each other. USE - Roll bars for motor vehicles.
Patent DE-4011535-A1 (DE)
Title: Piston for IC engine - has several compression ring below which is oil scraper ring with pressure unloading holes leading from its groove to piston interior
Inventor: GENTSCHEFF JORDAN DIPL ING
IPC: F01M1/06
Filed: 1990-04-10
Abstract: Below the oil scraper ring, there is an oil catchment groove (10) with oil conduit holes leading to the piston interior, and arranged in each of the two quadrants in front of the piston pin face sides. The pressure unloading holes (7) are only provided in the central area of the two quadrants (a) in front of the piston pin long sides, the oil catchment groove (10) runs completely around the piston, and in each of the pressure unloading holes (7) is a section (9) of smaller dia. At least one pressure unloading hole (7), and at least one oil conduit holes (11) issue into a common discharge hole (8) running in the longitudinal direction of the piston, and leading to the space on the piston underside. USE/ADVANTAGE - IC engine piston in which a very adequate oil feed is ensured to the piston rings and to the piston exterior.
Patent DE-4014404-A1 (DE)
Title: Vehicle propelled by muscular power - uses two pedal cranks divided by rotary link into two arms
IPC: B62M1/12
Filed: 1990-05-04
Abstract: The pedals (2, 2') do not execute a circular movement, but perform in the following ways according to the make-up of the vehicle. Firstly, their movement can be elliptical with the two crank arms (5, 5', 4, 4') being of different lengths. Second, with the arms having the same length the movement of the pedals is in two straight lines. The circulating path of the pedals is produced by a fixing gearwheel with its central point in the centre of the circular movement of the inner pedal crank arm (5, 5'). A second gearwheel is fixed on the rotary pin of the second pedal crank arm with its centre point in the rotary link. A closed chain (12) runs around both gearwheels. A closed chain line is produced with two straight and two circular segments by connecting the pedals directly to the chain. USE - As a road vehicle propelled by pedals operated by the user.
Patent DE-4017211-A1 (DE)
Inventor: PRUECHER HELMUT
IPC: A61P25/20
Filed: 1990-05-29
Abstract: Novel oxazolidinones of the formula I   <IMAGE> I  in which R1, R2, R3, R4, Z and n have the meanings defined herein, and their salts have effects on the central nervous system, in particular calming effects.
Patent DE-4019611-A1 (DE)
Title: Transport unit for PCB(s) - has retainer formed from individual support members with guides, in combined plug configuration
Inventor: SCHAEFER FRANZ-W
IPC: B65G17/32
Filed: 1990-06-20
Abstract: The unit can be coupled to a belt conveyor etc. via fastening elements. Vertical retainers for the circuit boards in a common body are formed by interconnected support members. The retaining body thus consists of individual, plug-connected support member (12) with guide elements. Pref. the support elements consists of a plastics body to which hinges are connected over its entire length and distributed over its sections. The hinges may be embedded over the entire length of the plastics body. One hinge of the support member is fitted with a guide groove in the region of its underside in each side. ADVANTAGE - Modular design for easy removing and resetting.
Patent DE-4021112-A1 (DE)
Title: Bubble-free prepregs from poly:isocyanate-polyepoxide prod. - by application of prod. from soln. with beta-tri:halide-tert. amine addn. complex as latent catalyst
Inventor: MUELLER HANNS PETER DIPL CHEM
IPC: C08G18/18
Filed: 1990-07-03
Abstract: Prodn of bubble-free prepregs is effected by impregnating a reinforcing material with a latent catalyst-contg.  reaction prod. (I) obtd. by incomplete reaction of an organic polyisocyamate and a polyepoxide at equiv.  ratio NCO gps:epoxy gps. of 1.2-500:1 using a tert. amine catalyst so as to give oxazolidinone and isocyanurate gps. on (I) are that; (i) (I) is used in the form of a soln. for the impregnation; (ii) the latent catalyst in (I) is a B trihalide/tert. amine addn. complex; and (iii) the impregnated material is dried. USE/ADVANTAGE - Prepregs have good storage life and can be pressed to give mouldings, heat shields or conductor base plates, the reinforcement pref. being of glass, plastics of C fibres or strips, and the final hardening by the latent catalyst pref. being at 60-150 deg. C.
Patent DE-4022745-A1 (DE)
Title: Mirror patterning - uses laser beam directed through glass pane to evaporate the reflection layer partially
Inventor: LANG HEINRICH
IPC: B23K26/40
Filed: 1990-07-18
Abstract: To apply a pattern to the reverse side of a mirror, such as lettering or graphics or a picture, the reflection layer (7) is at least partially evaporated by a laser beam (2). The laser beam (2) is directed through the leading side (5) of the glass pane (4) at the reflection layer (7). The mirror (3) is at least held in a partial surrounding (9) which at least covers the area of the reverse side (6) of the glass pane (4) where the patterning is to lie. The reflection layer (7) and the protective layer (8) are evaporated by the laser beam (2) passing through the leading side (5) of the glass pane (4). After the pattern has been applied, the reverse side (6) of the glass pane (4) is coloured at least at the patterned zone. A YagDyn is the pref. laser appts. (1). ADVANTAGE - The method gives a decoration to the mirror at high speed, without damage to the glass layer or roughening it.
Patent DE-4024085-A1 (DE)
Title: Vehicle body cleaning for painting - uses fine mist water sprays to prevent the fluid droplets drifting into rinsing zone
Inventor: RENZ DIETER
IPC: C23C22/00
Filed: 1990-07-28
Abstract: To clean and bonderise metal workpieces before painting, especially vehicle bodies, the mist of bonderising fluid caused by scrubbing and spraying is blocked from drifting into the rinsing zone against the direction of travel by separating the flying droplets from the bonderising zone. The workpiece is covered by a film of water on all sides directly before entering the scrubbing stretch of the bonderising zone. The temp. of the rinsing water is left so that the raised temp. of the cleaning water through the workpiece can be set freely below the temp. of the cleaning fluid. ADVANTAGE - The method gives a total cleaning of the vehicle body, so that faults do not occur in subsequent paint spraying, and raising the temp. of the rinsing bath water saves energy.
Patent DE-4025582-A1 (DE)
Title: Chain guard for sports bicycle - has two=part fastener for adjustment of guard plate
Inventor: MICHEL KLAUS
IPC: B62J13/02
Filed: 1990-08-11
Abstract: The chain guard has a flat guard plate and a fastener, for fixing to a lower tube of a bicycle having pref. several chain wheels.  The section of the fastener (3) facing the guard plate (2) consists of a clamp section (6), and a carrier section (5), fastened by two screws (8) to a tube bracket (7). Clamp- and carrier sections have a toothing, parallel to the guard plate. The rear side of the guard plate facing the carrier section, has two parallel guide rails (10). The guide rails, and the sides of the carrier section over which they engage, have a longitudinal toothing. The rails are pushed onto the carrier section into a secured end position. USE - Chain guard for sports bicycle.