baber/WOPTO huggingface dataset:
Patent DE-4007640-A1 (DE)
Inventor: KRIEGESMANN JOCHEN PROF DR
IPC: C03B11/08
Filed: 1990-03-10
Abstract: The use of AlN sintered ceramic as a material for a compression mould for manufacturing optical parts made of glass or glass ceramic permits polished moulded optical parts of high surface quality and high precision to be obtained. The material can be manufactured by processes known per se, such as hot processing, unpressurized sintering or by the sintering-HIP process. Subsequent compression of AlN by hot isostatic pressing (HIP) further reduces the residual porosity. The AlN ceramic manufactured by this process can contain up to 12 wt.% of alkaline earth oxides, up to 8 wt.% of aluminium oxide, up to 10 wt.% of rare earth oxides and up to 8 wt.% of carbon as sinter additives, the total content of which must not exceeded 15 wt.%. Preferably, the material has a residual porosity less than 2 %.
Patent DE-4008962-A1 (DE)
Inventor: HUMM SIEGFRIED
IPC: F16B25/10
Filed: 1990-03-20
Abstract: A screw for fixing a gypsum plaster board comprises a screw head (14), which has a truncated-conical region (15) adjacent to the screw shank (11), and a flat-cylindrical part, constructed as a plate (17), adjacent thereto. <IMAGE>
Patent DE-4011845-A1 (DE)
Title: Automatic rivet appts. for garment closures - has lateral feed of parts to punch head and die tongue
Inventor: KINZIG MANFRED DIPL ING
IPC: A41H37/02
Filed: 1990-04-12
Abstract: The appts. to give an automatic rivet operation to bond closures to clothing, esp. hook and eye closures, has a slide feed to deliver the parts to holders at the punch head and die tongue. They are sepd. through lateral travel to be ejected. The die tongue holds the parts for the waistband or clothing and swings them out for rivetting below the punch head and above an anvil. ADVANTAGE - The appts. is automatic and has a co-ordinated working, and allows two units to be deployed together to rivet garment closures in sequence.
Patent DE-4012408-A1 (DE)
Title: Electronically self-latching cylinder lock
Inventor: TZOU KAE MIN
IPC: E05B47/06
Filed: 1990-04-19
Abstract: A cylinder lock comprises a control pin which has an associated switch including a spike fixed on the pin and a resilient  conductor fixed on the cylinder via an insulator. This is disposed inside a bore formed inside the cylinder, with the lower end contacting a slot formed on the surface of the plug so that when the plug is rotated, the slot will be inclined and the control pin will be driven to have the spike contact the resilient conductor. The latch is so installed that when actuated by the electronic circuit, the latch will latch the plug and prevent the plugs from being rotated. The warning unit is so connected to the electronic circuit that when the latch is actuated, the warning is also actuated to send out a warning signal. The electronic circuit is so connected that when any one of the pin tumblers is moved to have the associated spike contact the associated resilient conductor, the latch and the warning device will be actuated if the spike of the control pin does not contact its associated resilient conductor in a given time interval to disable the electronic circuit.
Patent DE-4013142-A1 (DE)
Inventor: GEYER HANS-ULRICH DR
IPC: C12N9/20
Filed: 1990-04-25
Abstract: The description relates to a process for specific alteration of the properties of enzymes by chemical modification. In addition, novel chemically modified enzymes, their production and use are described.
Patent DE-4013572-A1 (DE)
Title: Suction cleaner with slider retaining dust bag cover - relieves stress on dust bag stiffening plate by compression of spring beneath pop-up sliding element
Inventor: SMITH ROY
IPC: A47L9/14
Filed: 1990-04-27
Abstract: The dust collection space (2) contains a holder (5) with parallel guides for a stiffening plate (6) to which the bag is attached for dust sucked in through an opening (7). The cover (4) of the space (2) is locked in position simply and reliably by a unitray slider (9) which can move parallel to the path of the cover (4) against the force of the spring (11) compressed into the base (10) of its compartment (8) by force on the protruding end (19) of the slider (9). ADVANTAGE - Substantial unloading of stiffening plate is achieved by simple structure with high functional security.
Patent DE-4017840-A1 (DE)
Title: Prefabricated support for railway tracks - comprises chest formed of plates with core of mortar mixed with finely milled, recycled hard plastic or elastic
Inventor: SCHROEDER KARL
IPC: E01B2/00
Filed: 1990-05-31
Abstract: Supporting construction for railway tracks (1) comprises a box-shaped prefabricated element which rests on a U-shaped concrete underlay (3). Supporting element (2) forms a platen and is covered by plates (2a,2b,2c) which improve rigidity. Core (9) within the plates consists of a dense mixt. of finely milled hard plastic or elastic particles bound together with a plastic-modified adhesive mortar. Particle hardness is equiv. to a medium hardness rubber and the particles are produced by a recycling process. USE/ADVANTAGE - Construction is used under railway tracks subjected to high speed and loads and improves an original invention by eliminating the need for precise fitting or separate fixing means for the supporting core.
Patent DE-4018454-A1 (DE)
Title: Stencil holder for silk screen printing - has edge regions of honeycomb pattern to accommodate distortion of frame
Inventor: BORNEMANN REINHARD
IPC: B41F15/36
Filed: 1990-06-08
Abstract: The frame for holding the stencil for silk-screen printing is of rectangular form with four sides (11-14). The stencil is held in place by a stencil holder (21) made from nickel plated sheet steel. Two opposite edges of the stencil holder are attached to the sides (11, 12) of the frame. The regions (31, 31') of the stencil holder adjoining the sides (13, 14) of the frame have rows of closely spaced holes which form a honeycomb pattern. These holes allow the stencil holder to accommodate any distortion of the frame without distorting the stencil. USE/ADVANTAGE - The printed product is free from distortion.
Patent DE-4022086-A1 (DE)
Title: Parallel capacitor circuit for AC=DC inverter drive - has capacitors arranged in pairs with coupling via plates to coaxial cable
Inventor: VOGEL XAVER
IPC: B60L9/24
Filed: 1990-07-11
Abstract: The a.c. supply network of a train system has a coupling to a vehicle mounted transformer that connects with a rectifier that is coupled via an intermediate circuit with 3 a.c. inverters delivery the supply to the d.c. drive motors. The intermediate circuit has at least a pair of capacitors (C1,C2) in parallel. Each capacitor has a pair of terminals that have threaded connections to metal plate strips. The ends of the plates are coupled to a coaxial cable. A number of such capacitor pairs can be used. ADVANTAGE - Requires limited space.
Patent DE-4022111-A1 (DE)
Inventor: KLEIN HERBERT DIPL ING
IPC: H05H1/34
Filed: 1990-07-11
Abstract: The present plasma torch has a central electrode (10), a nozzle end piece (11) concentric thereto and a concentric torch jacket (73). There is an annular gap (27) for the passage of plasma gas between the electrode (10) and the nozzle end piece (11), and there is an annular channel (75, 76) between the nozzle end piece (11) and the torch jacket (73), the inner wall of which annular channel (75, 76) is partially formed by means of an insulating tube (36, 39) which electrically isolates the two parts (11, 73). 
<??>In order that this plasma torch can also be operated in particular using alternating current, largely without the risk of forming parasitic arcs, the annular channel (75, 76) is drawn back between the nozzle end piece (11) and the torch jacket (73) at least to the level of the coolant inlet and outlet (61, 62) of the torch jacket (73). At its rearward end, the annular channel (75) is in line connection (55) with a source (56) of a pressurised, gaseous medium. Such a torch is safe in operation even in an atmosphere having electrically conductive particles, such as metallic or foundry dusts and achieves long lives.
Patent DE-4023265-A1 (DE)
Inventor: BOCKISCH KARLHEINZ
IPC: E05B15/00
Filed: 1990-07-21
Abstract: The invention relates to a bascule lock for doors with sections of a foam-filled door leaf which are connected to one another in an articulated manner. To guarantee a foam filling of the door leaf and also to make it possible to arrange the handle parts in a countersunk manner, by means of the invention the bolts located on the outside and the locking bars (16) located in the lock case (6) are connected via a compression-resistant and tension-resistant chain (14) which is arranged in a foam-inserted square tube (13). <IMAGE>
Patent DE-4024109-A1 (DE)
Inventor: JAKOBS WILLY
IPC: B02C4/28
Filed: 1990-07-30
Abstract: In previously known two-roller machines, in particular roller presses, which consist of two rollers which are rotatably mounted in a housing, driven in opposite directions and have gearing attached to the drive pins of the rollers, torque supports are provided to receive the reaction moments and are constructed as two-armed lever plates and, on the one hand, are connected securely to the gearing and, on the other hand, are connected in a rotationally movable manner to a torsion shaft via linkages and lever arms. Since in this arrangement the lever plate arms are of equal lengths, in each case only one lifting plate can be arranged on one side of the two-roller machine for reasons of space. However, this entails an increased space requirement. However, according to the invention the arrangement of both torque supports on one side of the two-roller machine and thus a considerable simplification and more compact design of the two-roller machine is achieved in that the lifting plate arms (16, 17) which are connected in a rotationally movable manner to the torsion shaft (13 and 14 respectively) via linkages (9, 10) and lever arms (11, 12) are of unequal lengths. 
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Patent DE-4024204-A1 (DE)
Inventor: HOFFMANN PETER DR
IPC: C09D167/00
Filed: 1990-07-31
Abstract: The invention concerns coating compounds based on binders containing hydroxyl groups and cross-linking agents containing isocyanate groups, characterized in that I) the binder consists of A1) 5-80 % by wt. of at least one polyester or alkyd resin with a hydroxyl number of 0-200 mg KOH/g and an acid number of 0-200 mg KOH/g, A2) 95-20 % by wt. of at least one polyacrylate with a hydroxyl number of 30-250 mg KOH/g and an acid number of 0-50 mg KOH/g, the sum of the proportions of components A1 and A2 being 100 % by wt. and II) the binder is made from 1) at least one polycondensation resin whose acid component includes 5-100 mole % of cycloaliphatic polycarboxylic acids and/or esterifiable derivatives of such acids, 2) at least one polyacrylate produced at least partly in the presence of the polycondensation resin obtained in the first process step and 3) optionally at least one other polyaddition and/or polycondensation resin.
Patent DE-4031177-A1 (DE)
Title: Fan rotor mfr. esp. for motor vehicle alternator - involves sectioning and bending of metallic strip to form integral blades and connections in polygonal annulus
Inventor: BOURGADE BRUNO
IPC: F04D29/28
Filed: 1990-10-03
Abstract: The disc of the rotor is mfd. from a generally rectangular strip (1) of metal which is subdivided at acute angles (4) into an even number of trapezoidal section (2a,2b, etc.) to form the connections between neighbouring blades (8) of the fan. The intermediate trapezoidal sections (3a,3b,3c etc.) are bent  along their midlines (7a, etc.) after removal of  V-shaped cutouts (12,16) to form the blades themselves.  The strip (1) is bent into a ring and its two ends are bonded together (F) e.g by welding or riveting. ADVANTAGE - Rotor with larger disc and enhanced cooling capacity can be mfd. more cheaply.
Patent DE-4038780-A1 (DE)
Title: Missile with detachable propulsion plug - has connecting body between detached by relative movement in axial direction, detaching body from plug whilst in barrel of gun
Inventor: REUTER INGOLF DIPL ING
IPC: F42B14/00
Filed: 1990-12-05
Abstract: The missile has a tubular body with detachable propulsion plug. A connecting body is inserted in the body and the plug, being detachable from both by relative movement in the axial direction. On firing, propulsion gases pass through an opening in the plug and strike the connecting component, detaching and ejecting this from the body. Coupling can be by shear pins or a snap-connector. ADVANTAGE - Detaches body from plug while still in gun barrel.
Patent DE-4039161-A1 (DE)
Inventor: LUGER SIEGFRIED
IPC: H05B41/38
Filed: 1990-12-07
Abstract: A variable frequency inverter (30) supplies a load circuit (40), incorporating two fluorescent lamps (LA1, LA2). An integrated control circuit (17) includes a transceiver (10), to which commands are addressed for adjustment of the brightness and operational mode. With the lamps switched off, the inverter (30) is switched by a driver circuit (31) into SLEEP mode either immediately or after a preset delay, to be reactivated by reception of a fresh brightness command. It is fed from the mains via an on/off switch (S1) and a rectifier (20).
Patent DE-4101057-A1 (DE)
Title: Immersion-tube level detector for vehicular engine sump -  gives stabilised readings by damping oscillations of float having perforated flange at end of stem
Inventor: BURGHOFF HEINZ-GEORG DR
IPC: G01F23/76
Filed: 1991-01-16
Abstract: The cylindrical tube (1) encloses a float chamber (3) around a coaxial pipe (6) on which an end stop (8) limits the descent of the plastic float (5) as the liquid level (4) falls. The narrow stem (11) of the float (5) is terminated with an annular flange (13) through which bores (18) connect the space (17) surrounding the stem (11) to the underspace (19). Vertical oscillations are damped by the effects of the bores (18) in conjunction with the annular gap (15) between the flange (13) and the wall (2) of the chamber (3). ADVANTAGE - Erroneous gauge indications caused e.g. by sloshing and foaming during cornering are avoided.
Patent DE-4104290-A1 (DE)
Title: Adjustable spring device on reversible ploughs - protects plough-bodies when they encounter stone
Inventor: LAUMANN BERNHARD
IPC: A01B61/04
Filed: 1991-02-13
Abstract: The device is for protecitng each pair of plough-bodies (2, 3) mounted on the tubular beam of a reversible plough against damage. It enables it to yield or tilt if it encounters a stone.  It involves a pre-tensioned compression spring which creates an adjustable withdrawal force, and which is supported on a pressure piece (10) in the front of the tubular beam. The pressure piece (10) is axially adjustable in the tubular beam (5) by means of adjusting elements (31). USE/ADVANTAGE - The spring pre-tensioning is easy and simple to adjust.
Patent DE-4108558-A1 (DE)
Inventor: REIME GERD
IPC: H04N7/08
Filed: 1991-03-15
Abstract: In a method for transmitting television signals, the phase of the carrier signal modulated with a video signal is changed by 180 DEG C from line to line of the video signal. The consequence of this measure is that the interference signal from a common-channel transmitter has the opposite effect from line to line of the displayed image, that is to say in a first line, for example, as brightening and in the next one as darkening. These disturbances which are oppositely directed from line to line are cancelled out by the visual faculty of the viewer or by electronics designed for the purpose, so that the image information generated by the interfering transmitter is no longer perceived.
Patent DE-4111174-A1 (DE)
Title: Using electromagnet to vibrate continuous ferromagnetic wire - as it is passed through electrocoating bath to improve current density
IPC: C25D5/20
Filed: 1991-04-06
Abstract: Method of increasing the current density during electro-coating of rod-shaped continuous ferromagnetic workpieces (b) consists of using a plastic coated electromagnet (3) whose alternating magnetic field causes the rod to vibrate. The electromagnet may be a DC magnet which is activated by a rectified AC or an AC magnet which is connected and disconnected to the current source at variable frequencies. USE/ADVANTAGE - Esp. for coating wire. Hydrogen bubbles are removed from the wire surface and the treatment solution is circulated in a more efficient manner to improved current density
Patent DE-4120564-A1 (DE)
Title: Chenille yarn mfg. appts. - has channels in sliding surfaces round carrier walls to hold cut effect material with core yarns
Inventor: BECHERONI PETRUCCIOLI LEDA
IPC: D02G3/42
Filed: 1991-06-21
Abstract: In the appts. for mfg. chenille yarns, where the chopped effect yarn material is carried by two curved sliding surfaces around the carrier rollers with the core yarns, channels in the sliding surfaces are defined by holding walls. They run along where the cut effect yarn material travels along the rollers for the effect yarn to be formed. The channels are pref. extended to come closer to the carriage rollers. The sliding surfaces are formed from two cut and stamped plate sections to be shaped and bonded symmetrically to each other. The taper, with its blade to give the cut effect material, forms the sliding surfaces around the carrier rollers with the channels and extensions. The passage for a core yarn has a chamfer to ensure that the core yarn is gradually fed into the channel. ADVANTAGE - The system improves the precision of chenile yarn mfg., making the material more consistent and with an improved effect which is reflected in the fabric when worked.
Patent DE-4121268-A1 (DE)
Title: Spring core mattress and bed - are demagnetised to eradicate harmful static field effect on human biological organism
Inventor: STORZ JOERG
IPC: A47C21/00
Filed: 1991-06-27
Abstract: The mattress with steel spring inserts has its static magnetic fields and nodes neutralised by continuous passage through a demagnetising machine with a magnetic alternating field directed at mattress height. The bed is passed through a multi-phase magnetic alternating field generator. In an access window the size of the mattress cross-section, between two parallel opposing magnetic pole surfaces, a magnetic alternating field with straight force field lines is produced in the direction of the height of the mattress. With the passage of the spring cores or ready-fitted mattress, all supporting springs are penetrated in the winding direction by induction. ADVANTAGE - Avoids physiological effects of permanent magnetic fields in steel mattress.
Patent DE-4126067-A1 (DE)
Title: Piston type heat engine
Inventor: BOINET JEAN-LUC
IPC: F02G1/04
Filed: 1991-08-02
Abstract: The heat-engine comprises cylinders with pistons, equipment successively heating and cooling the medium in them, and an output drive linkage. A large number of cylinders (105) are mounted on a frame (104) turning on a non-rotating eccentric shaft (101).     The heating and cooling units are mounted at diametrally-opposite points round the rotary cylinders and frame. The output links (110) from the pistons (106) are supported from the eccentric shaft by a bearing bush rotating on it. The frame and bush rotate on different parts of the shaft.
Patent DE-4126762-A1 (DE)
Title: Discharge lamp arrangement esp. for motor vehicle headlamp - includes relay circuit for both main-beam and dipped headlamps, safeguarding supply circuit against unloaded operation
Inventor: SHIMIZU KATSUNORI
IPC: H05B41/292
Filed: 1991-08-13
Abstract: A combination of connection terminals (CN1, CN2) and signal lines (SG1, SG2) provides a check on whether or not the cables (CB1, CB2) feeding the electrodes of the two discharge lamps (HV1, HV2) are connected to the power supply circuit (10). The control circuits (11, 13) of the dipped and main-beam lamps respectively are activated to switch off the power using a two-contact relay (Ry) if the check finds the headlamp cable connection to be broken or irregular. ADVANTAGE - Damage by overvoltage to power supply circuit in absence of any connection to lamp cables is prevented.
Patent DE-4130545-A1 (DE)
Inventor: BAYLINK DAVID J PROF
IPC: A61K33/24
Filed: 1991-09-13
Abstract: The invention concerns a bone-growth-stimulating composition containing at least one substance selected from the group comprising the growth factors FGF, TGF- beta , IGF-II and PDGF and biologically active mutants and fragments thereof, plus at least one salt selected from the group comprising physiologically tolerated vanadates, molybdates and fluorides, except for the combination IGF-II and fluoride. The invention also concerns the use of such compositions.
Patent DE-4130994-A1 (DE)
Title: Subterranean garaging system in column-like structure - with vehicles loaded and stored on paternoster-like arrangement located around edges in cells of circular structure
Inventor: REUSS RITA
IPC: E04H6/18
Filed: 1991-09-18
Abstract: The garage for parking cars consists of a circular or oval-section shaft (1) which extends downward into the ground. Vehicle storage carriers (6) are arranged around a central core. Walls between the shaft segments and inner walls (2) and cross floors (15) in the internal space (16) provide support and stiffening to the circular shaft. Vehicles are loaded at the top of the shaft and stored using the paternoster lifts. USE/ADVANTAGE - Economic usage of space in a circular arranged subterranean car park.
Patent DE-4131398-A1 (DE)
Title: Insertion method for pipe into concrete receptacle's wall -  involves making circular hole with annular protuberance around it, and two annular stepped holders
Inventor: GUITONEAU HANS
IPC: F16L37/00
Filed: 1991-09-20
Abstract: The method of inserting a pipe (3) into the wall (1) of a concrete receptacle consists of making a circular hole (2) of the same diameter as the outer diameter of the pipe (3). The hole (2) in the side of the receptacles inner wall has an annular proturberance (9) forming a stop for the end (5) of the pipe (3). On the side of the receptacles outer wall, the hole (2) has two annular, multi-stepped holders (6,7) for an annular seal (8) and for a closure-ring (9). USE/ADVANTAGE - The metal, plastics or other pipe, esp. collector-pipe for rain-water, can be attached to a cistern for example.
Patent DE-4135029-A1 (DE)
Inventor: BUSS ENNO DR
IPC: C23F15/00
Filed: 1991-10-23
Abstract: The invention relates to a method of controlled passivation of the inside walls of a carbon-steel cooling circulation system which is open to the air and/or closed, with an aqueous coolant circulating therein and containing alkali metal bicarbonate and alkaline earth metal bicarbonate, and to the use of this method for determining the passivation state of the metallic contact surfaces, for controlling the corrosion inhibition and for checking the quality of the coolant, especially water. <IMAGE>
Patent DE-4136286-A1 (DE)
Title: Hydraulic drive for movement control of incrementally variable camshaft adjustment - adjusts relative rotary angle between camshaft and drive wheel and uses pump and valve arrangement
IPC: F01L1/344
Filed: 1991-11-04
Abstract: The pump and valve arrangement is activated via the control chambers of the camshaft dependent upon positioning signals. A valve-controlled piston-pump system (22-28, 60, 54, 56) is provided with an impeller pump arrangement (22,26,24,28) for each control chamber, with which the corresp. suction valves (54,56) of the impeller-pump arrangements (22,26,24,28) are controllable selectively individually or in common by means of a positioning mechanism (60) working against a rear position. The activation of the control chambers (12,14) is achieved by unblockable check valves (34,36), which are unblocked by the system pressure in the supply line in the other control chamber as soon as that pressure exceeds a threshold valve. USE/ADVANTAGE - A hydraulic drive for incrementally variable camshaft adjustment which is compact in formation, provides high dynamics and a reduced power loss in the rest condition.