baber/WOPTO huggingface dataset:
Patent DE-4010352-A1 (DE)
Title: Control system for cold-rolling process - has tension monitor to identify periodic fluctuations for feedback control of roller drive
Inventor: FINCK REIMAR DIPL ING
IPC: B21C47/00
Filed: 1990-03-28
Abstract: The cold rolling process has the rolled material pulled onto a take-up bobbin (2) after passing over a tensioning monitoring roller (3). The variations in the tension are identified and any regular variations are used to regulate the roller drive, as is the constant level tension. The rollers are driven to maintain the tension and ensure an even rolling process. The tension roller is mounted on a pressure sensitive support (Z). The tension is controlled by variation of the drive current to the bobbin enabling a simple processor control to be used. ADVANTAGE - Even rolling control, simple feedback correction for tension.
Patent DE-4011390-A1 (DE)
Title: Grinding spindle unit for profile grinding machine - has arrangement of sleeves between spindle and grinding wheel mounting to compensate for thermal expansion
Inventor: ULRICH HANS-JOACHIM DIPL ING
IPC: B24B41/00
Filed: 1990-04-07
Abstract: On profile grinding machines the effect of heat generated by the spindle on the axial location of the grinding wheel must be minimised. This is achieved by two sleeves, one (3) elastically bonded the spindle (1) and tapered on the outside, and the other (4) elastically bonded to the grinding wheel mounting (2) and having a matching taper in the bore. The sleeve is forced against the shoulder (5) on the spindle by spring washers (11) and screw (12), and sleeve (4) is forced against the shoulder (6) in the mounting and secured to the spindle by spring washers (13) and screw (14). By this arrangement of the two sleeves the axial position of the grinding wheel remains virtually constant irrespective of thermal expansion of the spindle. ADVANTAGE - High grinding accuracy.
Patent DE-4011609-A1 (DE)
Title: Prodn. of double glazing for cars - by injection moulding two sealing surrounds on to one pane, inner seal contg. dehydrating agent and pressing second pane on to it
Inventor: TRIER FERDINAND PROF DR ING
IPC: C03C27/12
Filed: 1990-04-10
Abstract: A thermally insulating glass window, particularly one for cars, is produced with at least two separate glass sheets with a gap formed by a plastic section. One pane has a plastic surround in two adjacent parts, one of which has a high content of dehydrating agent; the surround is injection moulded round one pane, and in a single operation; the insulating property is obtd.  by bonding the other pane to the first and its moulded surround. The single glass sheet (1) is surrounded by two materials (2,5), one (5) contg. the dehydrating agent. This material (5) can be distributed round the complete circumference or merely at partic. places such as near the bottom. To produce the insulating window the pane (4) is bonded directly on to the injection moulded surround (2). The bonding polymer shot (2) can be given a partic. profile if desired. The two sealing materials can also be moulded so as to fit together by their profiles. ADVANTAGE - The method of prodn. is inexpensive and rational.
Patent DE-4012563-A1 (DE)
Title: Hand knitting needle - has flexible rear section
Inventor: NEUL JUERGEN
IPC: D04B3/02
Filed: 1990-04-20
Abstract: Knitting needles, suitable for wool, are sectional. The rear section is made flexible, from metal, and may have a plastic coating. Pref. the rear, or bottom section of a knitting needle may have different heads attached. It may include some form of electronic device for the purpose of counting the loops, or stitches. It may have a built-up construction, from metal or plastic, and may incorporate other types of accessories, or designs. USE - The needle may be shaped to a comfortable position.
Patent DE-4015737-A1 (DE)
Title: Coupling system for selective coupling of different implements - has intermediate frame detachably mounted between ground roller and cultivator
Inventor: MISPEL ANDREA
IPC: A01B51/00
Filed: 1990-05-16
Abstract: The coupling system for selectively coupling different implements or machines to agricultural combines includes an intermediate frame (19) which is detachably mounted on the easily detachable coupling elements (14) in front of the ground roller (2) between this roller and cultivator. Feed distributors, fertiliser, distributors and/or shares can be mounted on the intermediate frame (19). The intermediate frame can have a structure (25) with three point coupling elements (26,27). USE/ADVANTAGE - Through the intermediate frame it is possible to adjust the spacing between the implements without altering the support arms which connect the ground roller to the cultivator.
Patent DE-4020222-A1 (DE)
Inventor: DETZEL JOSEF
IPC: B65D5/60
Filed: 1990-06-26
Abstract: The packaging made of cardboard or the like has two side walls, two end walls and a bottom, and a vertically extending longitudinal sealing seam as well as an upper and a lower transverse sealing seam in each case, a plastic film (17) of tubular construction being provided in the interior of the packaging, which plastic film extends into the two transverse sealing seams and can be sealed therewith, and the plastic film being fixed at least on one side wall of the flat cardboard blank. <IMAGE>
Patent DE-4020315-A1 (DE)
Inventor: RISSE GEORG DR
IPC: A61C7/12
Filed: 1990-06-26
Abstract: The invention relates to rectangular wires and brackets for use in orthodontic treatment methods as well as to a system of treatment comprising these wires and brackets. The wires according to the invention have a smaller cross-section than conventional wires, and the cross-section of the slots of the brackets is also smaller than in conventional systems and can be so adjusted to the cross-section of the wires that the wires have sufficient play in the slots so as to allow selective three-dimensional tooth movement with biologically acceptable forces. The invention also relates to orthodontic methods using such wires and brackets.
Patent DE-4020727-A1 (DE)
Title: Combined arm rest and hand grip on vehicle door - provision for part of arm rest to be height adjustable
Inventor: HUELSO HANS
IPC: B60N2/75
Filed: 1990-06-29
Abstract: Vehicle arm rest with provision for adjustment in height comprising a conventional door mounted arm rest with a fixed grip to pull the door to. Part of the arm rest is height adjustable and the section which can be raised may be upholstered. ADVANTAGE - Arrangement which retainse the conventional combination of arm rest and grip but which offers the facility for adjustment to suit the needs of different users.
Patent DE-4024130-A1 (DE)
Title: Separating mixed plastic materials - by producing each type with its own markings, irradiating mixt., analysing characteristic emissions and using them to control sorting
Inventor: FOLKERTS KARL-HEINZ PROF DR RE
IPC: B03B9/06
Filed: 1990-07-30
Abstract: Mixed plastic materials are separated by giving to each type one or more characteristic markings at the time of its production, subjecting the mixture to thermal neutrons or electromagnetic radiation, and analysing the characteristic energy emanating from the markings in a detector system which controls a sorting device. The mixed material is first washed, and sorted according to item size; this is followed by sorting by shape, colour and transparency and then by deformability. When the material is then irradiated e.g. by thermal neutrons etc. its markings become activated. They therefore emit characteristic energy levels, and these are analysed. Automatic sorting is controlled by the data collected.  The final categories of material are then ready for use again. ADVANTAGE - The method can be cheaply mechanised so as to provide automatic separation and with a high degree of accuracy.
Patent DE-4024357-A1 (DE)
Title: Screen printer alignment rig - has movement of suction grip belt accurately monitored by sensor and impulse generator
Inventor: STEIGERWALD STEFAN
IPC: B41F15/10
Filed: 1990-08-01
Abstract: The substrates are successively placed on a moving suction belt (11) and moved into the screen printing position. To ensure accurate overlay of the colours the alignment/positioning of the substrates has to be accurate. This is achieved by measuring the actual displacement of the belt during positioning by a sensor (16) clipped to the belt and linked to the processor (15). The sensor (16) has a clamp fitting to the belt for each substrate loading. It is rigidly attached to a monitoring belt (14) which drives an impulse generator (19) linked to the processor. ADVANTAGE - Precise location of substrate, simple processing.
Patent DE-4024563-A1 (DE)
Title: Round-headed screw mfr. with thread and stop - starts with cylindrical pin from which head and shank are pref. cold-rolled before thread cutting
Inventor: ISENBERG RAINER
IPC: B21K1/46
Filed: 1990-08-02
Abstract: The screw (1) has a self-tapping threaded shank (3) and a spherical head (6) with a narrower neck (11) impeding removal of a plastic cap in which it enables the screw to rotate more  freely. A radially projecting step (10) on the middle of the shank (3) limits the distance through which the screw can be driven. It may serve as an abutment for a disc (17) or underlay pushed on before the thread (2) is cut. USE/ADVANTAGE - For adjustable mountings of vehicular headlamps. More robust screw can be mfd. at less cost of equipment and labour.
Patent DE-4025177-A1 (DE)
Title: Electrophotographic printer for continuous fanfold paper - has control stopping transporting equipment when front edge of perforated paper web is detected
Inventor: MONMA YOSHIO
IPC: G03G15/20
Filed: 1990-08-08
Abstract: The printer, e.g. laser for blank form endless paper web separable into individual sheets of set length by transverse perforations has an image forming section (1-6) for the paper web (20). The latter is moved along a predetermined path by transporting transporting equipment (9). A fixing unit (8) fixes the image produced. A sensor (30) is installed in the transport path in front of the fixing unit to detect the front edge of the paepr web. A control is assigned to the  transporting equipment to stop it when the front edge is detected.  The transporting equipment is a tractor belt type with two endless rotating belts equipped wtih projections to engage the transporting holes of the paper web. ADVANTAGE - Prevents loss of paper sheets.
Patent DE-4026654-A1 (DE)
Title: Suction loaded vehicle for bulk material and liq.
Inventor: ALWES DIETER
IPC: B60P3/22
Filed: 1990-08-23
Abstract: A motor vehicle for transporting a liq. or a bulk material has a cylindrical tank (16) to contain the load. The tank is fitted with a suction branch (22) for loading and a branch (24) for a discharge fan.  A combined suction and blow pipe (20) is mounted on the vehicle chassis and can be connected either to the suction or the blow branch. The two branches are of the same dia. to enable the use of the combined pipe.
Patent DE-4027536-A1 (DE)
Title: Coin operated games machine e.g. fruit machine -  has symbol carrying discs operated in pseudo random cycle with odds change facility
IPC: G07F17/32
Filed: 1990-08-31
Abstract: The coin operated gaming machine has three disc shaped elements (5-7) that have symbols on the surface and are rotated in a pseudo random cycle.  The unit is operated by a control unit (2) that is based around a microcomputer (3). The microcomputer module has a pseudo random signal generator operating with a unit (16) determining the odds, memories (31-53) and I/O units (10) coupled to indicators (12), operator inputs (11) and display panel (13). ADVANTAGE - Allows the odds to be changed within cycle.
Patent DE-4029306-A1 (DE)
Title: External visual examination system for aircraft - uses camera supported by mounting foot attached to aircraft by magnetic fixing
Inventor: HAAS JAN TOMAS
IPC: B64D47/08
Filed: 1990-09-15
Abstract: The visual examination system uses at least one camera positioned on the outside of the aircraft. The mounting for the camera (1) is secured to the body of the aircraft via a foot (3) which has a magnetic fixing using two cooperating magnets mounted within the foot and on the inside face of the aircraft outer skin. Pref., the camera is contained within an aerodynamically shaped housing. ADVANTAGE - Prevents image impairment due to vibration.
Patent DE-4035206-A1 (DE)
Title: Agglomerating fine-grained coal for use in grate firing - by rotating in concrete mixer or other drum, avoiding expense of briquetting
Inventor: UNGER GUENTHER
IPC: C10L5/14
Filed: 1990-11-06
Abstract: In mfg fine-grained coal suitable for grate firing, mixts. with 50-80% with grain size below 1 mm and 10-18% moisture, with at least 1% (pref. 1.5%) starch, are rotated in a revolving drum. Opt. the rotational speed of the drum is such that the centrifugal force on the charge in an inclined or vertical drum is less than the gravitational force of the charge mixture and/or agglomerate; regulation of moisture by adding water or dry coal; spraying agglomerate with at least 0.5 litres of light oil per tonne of coal. USE/ADVANTAGE - The coal is agglomerated so that it is suitable for grate firing without the expense of briquetting. This is an expense which, in particular, may be difficult or impossible to cover in developing countries. The agglomerate dia. is about 10 to 100 mm, increasing with the moisture content. The revolving drum may be a concrete mixer, which is likely to be available in developing countries as well as elsewhere.
Patent DE-4037891-A1 (DE)
Title: Fluid filled elastomeric absorber - has inner and outer sleeve with between compartment divided by prestressed part into three
Inventor: TAKEGUCHI HAJIME
IPC: F16M7/00
Filed: 1990-11-28
Abstract: The fluid-filled elastomeric absorber has an inner and outer sleeve (12, 14) with space between containing an elastic, axially and radially pre-stressed part (16) joining the sleeves (12, 14) and dividing the space into three. One of the compartments has an operating-chamber (22) between the elastic part (16) and the outer sleeve (14) and containing a fluid. The other operating-chambers (30, 34) filled with fluid are contained in the other compartments. Between the outer sleeve (14) and the elastic part (16) are two restricting fluid-ducts (32, 36) forming connections to two compensating chambers (30, 34).
Patent DE-4041340-A1 (DE)
Title: Vehicle door hinge - has lockable rotary pin with eccentric bearing trunnion
Inventor: SMIEJA JOHANNES DR
IPC: E05D5/10
Filed: 1990-12-21
Abstract: The hinge-system is for a section of bodywork, particularly a vehicle door, having two hinges spaced apart. Each of these contains a pin, one at least of which can be turned and locked in position. This pin (8) has an eccentric bearing trunnion (10), and is turned so as to adjust the door. It can be offset for 2mm or more from the mounting trunnion (9), and can have a hexagon spanner head the free end. ADVANTAGE - Easy adjustment after installation, painting and repair work.
Patent DE-4100309-A1 (DE)
Title: Cleaning unit for long basins or mine channels - comprises floating sludge tank joined to pump assembly by flexible linkage, for sludge removal at fixed intervals
Inventor: SCHMIDT PETER
IPC: B01D21/24
Filed: 1991-01-08
Abstract: Sludge is discharged into and temporarily stored in a tank which is pushed immediately in front of the abstractor assembly and floats in the water; and the collecton tank is joined to the sludge pump assembly by a flexible or articulated linkage. Pref. sludge remover assembly (1) moves on rails (4) along a long basin which collects water and mineral sludge behind a wall (2) within a mine shaft (3). The pump assembly sucks up sludge which is discharged via a pipe (20) into a floating tank pushed through an articulated linkage (14) which raises and lowers tank. The tank is stabilised by buoyancy chambers (16). Abstractor pipes (26) mounted on the mine shaft ceiling are lowered into the tank at convenient intervals to remove the sludge. USE/ADVANTAGE - Complex pipe fittings are not required for repeated connection and disconnection.
Patent DE-4108818-A1 (DE)
Title: Geometric arrangement for single gate multi-source and drain FET - comprises central insulated gate surrounded by concentric ring of individually isolated source and drain regions
Inventor: EICHFELD HERBERT DIPL ING
IPC: H01L29/06
Filed: 1991-03-18
Abstract: The single gate, multi-source/drain field effect transistor comprises a highly-doped segmented toroidal (or square-plan) diffusion region (contg. at least three segments) set within a substrate of a second doping type and covered with an insulating oxide layer. Each segment (G1 to G8) is isolated (ISO) from adjoining segments and features an individual source (S1,S2) or drain (D1 to D5) contact formed from a metallic layer (K) inset into the oxide insulator. The central gate contact (GE) overlaps the inner edge of each segment (AD1,AD2,AS2) and completely covers the central channel region (KG). ADVANTAGE - Unique geometric arrangement allows size of source and drain areas and channel resistance to be defined in relation to one another.
Patent DE-4109729-A1 (DE)
Title: DC motor fitted with magnet ring sectors for field excitation - has radially magnetised main pole on each side of which is vertically magnetised and has auxiliary pole forming turning field
Inventor: ROTTMERHUSEN HANS HERMANN
IPC: H02K15/03
Filed: 1991-03-25
Abstract: The DC motor has permanent magnets on a stand forming a magnetic conclusion, and an armature carrying a winding and a collector which rotates inside the stand, or with permanent magnets on a runner and with a rotating magnetic field on the stand. The magnetic ring sectors (1) have a radially magnetised main pole, on each side of which is an auxiliary pole (6) magnet is vertically to the pole surface, main and auxiliary poles being limited by a vertex line (11). The auxiliary pole on the run-out edge is commonly, and on the run-in edge uncommonly magnetised with the main pole. Through the angle of inclination of the auxiliary pole to the armature, the power take-off, degree of effect and commutation can be regulated and influenced. In order to achieve an absolute demagnetisation strength of the magnetic ring sectors (1), the auxiliary poles (6) in a geometrical neutral zone (4) have on the run-out and run-in edges uncommon pole fields with the armature cross field. ADVANTAGE - Strong power, permanent magnet-excited DC motor high demagnetisation strength, and good commutation at high speeds.
Patent DE-4113245-A1 (DE)
Title: Power supply for simultaneous DC to AC generation for large computers - has AC-DC input converter coupled to three phase AC inverter stae follower by DC converter with smoothed output
Inventor: SACHS KLAUS DIPL ING
IPC: H02M1/42
Filed: 1991-04-23
Abstract: The power supply unit has an AC/DC input converter (12) coupled to a circuit (18) generating a regulated a.c. output and a further circuit (16) that provides d.c. output with a low harmonic content. Transistors (22,44,46) have emitter-collector paths controlled by the signals applied to the base (20) and which are generated by a microprocessor controller. The d.c. output is generated via a smoothing capacitor (42). The a.c. circuit has pairs of transistors (44,46) coupled to provide a three phase (R,S,T) output (50). The transistors may also be replaced by gate turn off thyristor devices. ADVANTAGE - Provides relatively high power output levels for AC and DC.
Patent DE-4121006-A1 (DE)
Title: Decontamination system based on a sequence of compartments - is used for examining harmful chemical or biological specimens, etc ., or for exit-access facilities for workers in dangerously contaminated areas
Inventor: STORBECK KLAUS
IPC: A62B31/00
Filed: 1991-06-21
Abstract: Decontamination/cleanroom system consisting of an arrangement of individual compartments, novel in that, in each compartment a constant over-pressure is maintained in stepwise relationship to each other in accord with the principle that the cleaner, the designation of the room, the greater the over-pressure, so that a standing air flow is maintained from a 'white' area to a 'black' area, and where the tolerance limits on the over-pressure in the individual compartments are fixed so that the pressure gradient always exists. A basic decontamination site comprising: a medical room compartment (1), where a doctor may work to provide emergency treatment or monitor workers health and exposure; a cloakroom compartment (2), a 'white' area shower room (3), a 'black', or dirty area, shower room (4), with the greatest over-pressure existing in the medical room (1) and progressively step-wise decreasing via the cloakroom (2); 'white' shower room (3), to the 'black' shower room (4). A compressor (10) maintains the necessary over-pressure by taking air from the external environment via inlet (5), filter (9) and distributing it via the duct system (6), and outlet slits (7) which are controllable to open and close depending on the directions from the individual compartment set-pressures. USE/ADVANTAGE - Personnel decontamination site of progressively cleaner pressurised rooms, which may comprise mobile units, and is constructed to serve workers in toxic or unhygienic environments, e.g. asbestos contaminations.
Patent DE-4132360-A1 (DE)
Title: Internal lining for ceiling area of rail vehicles - has removable pivot bearing to mount cover panel on longitudinal profile on roof
Inventor: DOMPKE THOMAS DIPL ING
IPC: B61D17/18
Filed: 1991-09-27
Abstract: The internal lining uses cover panels, which are located behind each other in longitudinal direction of the vehicle. The longitudinal edges of the panels are removably fastened to the vehicle body via longitudinal profiles, located on roof and side wall. The cover panel (4) is fastened to the profile (5) on the roof, via a pivot bearing (7). After loosening of the fasteners in the area of the sidewall (1), and pivoting of the panel towards the longitudinal centre plane of the vehicle, the bearing is released. ADVANTAGE - Reduced simplified mounting and removal.
Patent DE-4138771-A1 (DE)
Title: Electroconductive film prodn. on plastics surface - esp. for electromagnetic screen by impregnation with monomer and oxidant to form conductive polymer
Inventor: OSTWALD ROBERT DR ING DR
IPC: C08J7/16
Filed: 1991-11-26
Abstract: Prodn. of electroconductive films on plastics surfaces (I) is carried out by diffusing monomers (II) and oxidant (III) into the region near (I), so that polymerisation takes place in this region. The polymers (IV) formed are intrinsically conductive and may be enhanced by other intrinsically conductive polymers and/or by metals. Pref. (II) are pyrrole, thiophene, furan, acetylene and aniline and (II) is Fe-III or Cu-II salts, I2, Br2 or anil. (II) and (III) are applied as liquids or solns. or in the gas state and pref. are absorbed by the plastics, causing it to swell. (II) and (III) may be applied separately, in either sequence, or simultaneously. The polymer film may be enhanced by repeated treatment with (II) and (III), by anodic polymerisation of (II) or other monomers or by chemo-electroplating with Cu, Ni or Au. USE/ADVANTAGE - The process is claimed for producing electroconductive films on polyolefins, polyamides, polyacrylates, polycarbonates, PVC, polystyrene, ABS, SAN and epoxide resins. It is useful for making housings acting as electro-magnetic screens, without greatly increasing their weight or impairing their impact strength. No additional corrosion protective is necessary.