baber/WOPTO huggingface dataset:
Patent DE-4003906-A1 (DE)
Title: Pipe collar through flexible roof surface - has clamping member on tubular casing sealed over upright pipe length
Inventor: FLECK OSKAR
IPC: E04D13/14
Filed: 1990-02-09
Abstract: The collar is for the passage of a pipe through a flexible roofing surface, which is sealed to it.  It comprises an upright length of pipe, a flange mounted on the pipe and installed below the roofing material, and a top clamping member gripping the edge of the perforation in the foof material between it and the flange. The clamping member (1) joins onto a tubular casing (3) fitting over the pipe (2) so as to leave a small intervening gap.  In the installed position the pipe and casing are sealed together. USE/ADVANTAGE - Improved sealing and easy installation due to absence of screwed clamping joints.
Patent DE-4004143-A1 (DE)
Title: Hay-making machine support wheels - are mounted on common frame with tilting axis
Inventor: PRENZLER JUERGEN
IPC: A01D78/10
Filed: 1990-02-10
Abstract: In a haymaking machine such as a swather, the supporting wheels (18,19,20) are on a common frame (17) which has support bearings (15,16) in the middlee between the front  supporting wheel (20) and the rear supporting wheels  (18,19). These bearings (15,16) have a common tilting axis, transverse to the direction of travel and parallel to the ground, to receive pins (13,14) of a frame (12) of the haymaking machine. USE/ADVANTAGE - System reduces the swinging and pitching of the swathing machine on uneven ground.
Patent DE-4007564-A1 (DE)
Title: MOSFET power amplifier for inductive loads - uses symmetrical bridge circuit with balancing inductors and free wheeling diodes
Inventor: IDELER KARL-HEINZ ING GRAD
IPC: H03K17/695
Filed: 1990-03-09
Abstract: A power amplifier feeds an inductive load (La). Four MOSFETs (T1...T4) are connected in a bridge circuit, each transistor being connected to a free wheeling diode (D1...D4). Four bridge circuits (I...IV) are connected between the power supply (V1,V2). Each bridge circuit includes a MOSFET in series with a free-wheeling diode. The load (La) is connected to the junctions of transistors and series diodes via inductances (Dr1...Dr4). ADVANTAGE - Higher efficiency and switching speeds, low cost.
Patent DE-4022544-A1 (DE)
Title: Method for degassing condensate - works in combined gas and steam turbine plant with heated part flow of condensate additionally degassed by temp. adjustment
Inventor: BRUECKNER HERMANN DIPL ING
IPC: F01K23/10
Filed: 1990-07-16
Abstract: Beyond the steam turbine (2) is connected a condensor (6). A boiler (8) is provided which is heated by the exhaust gas (a) from the gas turbine. In the boiler is a heater (10) which heats the condensate (k) from the condensor. Outside the boiler is connected a mixture container (24) in parallel with the heater (10) which receives a part flow of heated condensate. A regulator (64) adjusts the heated temp. (T2) of the condensate (k'). In the condensor or in its condensate collection tank (56) a pipe hose is fitted in which the leaked steam (c) coming from the steam turbine is condensed. The amt. of fill of the heated part flow (t) in the mixt. container is adjusted by a level regulator (62) dependent upon the extent of fill of condensate in the condensor. USE - To degas a condensate in a water-steam circuit of a combined gas and steam turbine plant when the gas content in the condensate exceeds a threshold value.
Patent DE-4027873-A1 (DE)
Title: Coil spring with variable characteristics - has single coil whose end and adjacent coils are fixed w.r.t. each other up to preset load
Inventor: WINTER INGO DIPL ING
IPC: B60G11/16
Filed: 1990-09-03
Abstract: The spring system with degressive characteristics supports one point (A) esp. a vehicle body, w.r.t. another point esp. a vehicle axle. The system consists of a single coil spring supported at these points via its first and last coils (1-4). At least one spring end is fitted with an arresting device (16), that prevents axial movement of the adjacent coil (5-8) w.r.t. the end coil (1-4) over a first load range. Above a certain spring force, the adjacent spring coil is released. USE/ADVANTAGE - Simpler provision of degressive spring characteristics for vehicle coil spring.
Patent DE-4028945-A1 (DE)
Inventor: SCHWABE KLAUS-PETER DR
IPC: A61K36/00
Filed: 1990-09-12
Abstract: Described is a dry kava extract with a total kavalactone content of at least 50 % by wt. and a flavokavin content of at the most 0.3 % by wt. The extract is readily soluble in water and has high bio-availability following oral administration. In order to increase the kavalactone content and decrease the flavokavin content of the extract, a method is proposed in which the raw extract is brought into solution and the flavokavin content reduced by cold precipitation or by solvent partition, after which the solution is concentrated to dryness. The dry extract can be used to prepare drugs.
Patent DE-4032266-A1 (DE)
Inventor: DOLLE VOLKER DR
IPC: C08F4/602
Filed: 1990-10-11
Abstract: Olefins of the formula  R<a>-CH = CH-R<b> (R<a>, R<b> = H or C1-C14-alkyl) are polymerised in the presence of a catalyst comprising a non aromatic solvent-soluble aluminoxane of formula (I) <IMAGE>  for the linear type and/or of the formula (II) <IMAGE> for the cyclic type, where, in the formulae (I) and (II), R<1> is methyl or a C2-C8-alkyl group, and n is an integer from 2 to 50, and from 0.01 to 40 % by weight of the radicals R<1> are C2-C8-alkyl groups, and a metallocene. Polymers of high molecular weight are obtained in high yield.
Patent DE-4100872-A1 (DE)
Title: Flange for fixture of tubular heating bodies - has flange outer plate fixed to container wall provided with non-rotatable earthing spring
Inventor: KERSCHBAUM HANS
IPC: F24H9/18
Filed: 1991-01-14
Abstract: The flange fixes the tubular heating bodies in an installation aperture of a container wall with at least one fixture means and a seal. The fixture means is a tension screw of the self-cutting kind, and a flange inner plate on the tubular heating body has a hole to accommodate the screw, and a flange outer plate fixed to the container wall is provided with a earthing spring. The flange inner plate set from the inner side of the container is fixed by the tension screw against the flange outer plate. For the installation of the tubular heating body in a container wall of plastic, a connection facility is provided on the flange outer plate for an earthing conductor. The earthing spring is secured against rotation, and is so fitted on the flange outer plate that it remains in contact with both tubular heating body ends fed through the flange outer plate. USE - For installation of tubular heating bodies in washing machines.
Patent DE-4103075-A1 (DE)
Title: Sealing system for space rocket booster - has annular springs to apply sealing force
Inventor: NENDL DUSAN DR ING
IPC: F16J15/02
Filed: 1991-02-01
Abstract: The sealing system is for segment connection for the booster of a space rocket. The sealing force is applied by one or more annular springs. Each spring has a parabolic cross section. An annular plug is placed on the edges of each spring, and the plugs connect two or more springs. The plugs fit into the groove, and there are metal sealing elements between plug and groove base. ADVANTAGE - Clear division between power transmission and sealing system.
Patent DE-4106510-A1 (DE)
Title: Recycling process for PVC sealing strip - comprises reducing strip to chips, blowing them plus hot air and quartz sand into container, stirring, blowing out polluted sand and screening residue
IPC: C08J11/06
Filed: 1991-03-01
Abstract: In a process of recycling PVC sealing strips they are cleaned before being used again and are disintegrated before being dry cleaned with quartz sand. Uncleaned PVC strips are reduced to chips and stirred together with quartz sand which is supplied by air draught, the air being then vented and filtered. The sand is metered out and, at the same time, hot air from a burner is blown in. The now dirty sand is blown out into a silo from which the sand is cleaned and sepd. ADVANTAGE - The method of cleaning the material is economical and effective
Patent DE-4111570-A1 (DE)
Title: Globoid worm gear lubricated by viscous pressure fluid - has elastically deformable wheel tooth flanks automatically changing by reaction forces
Inventor: ARNDT FRANZ MARTIN
IPC: F16H1/16
Filed: 1991-04-10
Abstract: The worm gear has elastically shaped gearwheel flanks (13) for automatically adjusting the curvature as the gearwheel runs through. Each flank (13) is connected by a lubricating channel (16) to the control device by means of which the lubricant is supplied through channels in the worm wheel. The gearwheel flanks are straight and inclined to the wheel axis with these straight inclined faces (23) supporting the elastically deformable flanks (13) which designed as hollow bodies (12) supply the pressurised lubricant for building up the hydrostatic lubricant pressure. As the flanks adapt automatically so the middle gap width between the elastic flanks and worm flank is reduced and thus the amuont of lubricant and drive capacity of the lubricant pressure pump is minimised. USE/ADVANTAGE - An enlarged engagement area with increased hydrostatic support face so as to increase the spatial capacity and improve the efficiency.
Patent DE-4117868-A1 (DE)
Title: Semiconductor laser driving method optical for communications wavelength converter - being controlled by supplied light signal of different wavelength to initiate light emission
Inventor: WUENSTEL KLAUS DR
IPC: H01S5/10
Filed: 1991-05-31
Abstract: The optical communications device has a laser cavity (41), integrated in a semiconductor substrate (2), with a simple branch structure. The laser cavity (41) has a number of associated zones (8...11) at least one of which is supplied with light of a given wavelength, the semiconductor laser (1) emitting light of a second longer wavelength when the incident light level reaches a given optical threshold. Pref. a DC current which is greater than the transparency current flows in each zone (8...11) of the laser cavity (41). USE - For use as wavelength converter in conjunction with optical multiplexer or demultiplexer.
Patent DE-4118866-A1 (DE)
Title: Producing electrophotographic lithographic printing plate - controlling electrical conductivity of liq. developer during reversal process to audio generating and discharging static electricity
Inventor: SENGA TAKAO
IPC: G03G9/12
Filed: 1991-06-07
Abstract: An organic photoreceptor is formed by a photoconductive kinding with resin material on an electrically conductive carrier. The surface of the photoreceptor is evenly charged. The photoreceptor is exposed by a light image by forming an electrostatic, latent image corresp, to the photo image on the surface of the photoreceptor. The latent image is developed by a reversal process using an electrophotographic, liq. developer contg. charged toner particles. The developer has a conductivity within the range of 1 X 10 to the power of - 10 to 1 X 10 to the power of - 12 S/cm. Alternatively, the toner particles have a Zeta potential lying within the range + 3m V to + 120 m V or - 3 m V to - 120 mV. ADVANTAGE - Image information can be directly written onto the organic photoreceptor from an electronic output system.  Avoids toner avalanche effect.
Patent DE-4120255-A1 (DE)
Title: Locking arrangement for lid of nuclear waste container - secures lid by screw and hinge arrangement
Inventor: SULIC MILAN DIPL ING
IPC: B65D45/24
Filed: 1991-06-19
Abstract: Locking arrangement for transport container (2) for waste materials from a nuclear plant, consisting of a body (4) with a lid (6), consists of at least one hinge (16), one leaf (22) of which is fastened to the lid, and a clamping element (18) consisting of a screw device (34) and a U-shaped shackle (36). The screw device has an eye (38) which engages a hook (26) on the second leaf (24) of the hinge and is clamped in position by turning the shackle about an axis (40) against the body. ADVANTAGE - Simple and secure.
Patent DE-4120430-A1 (DE)
Title: HV coaxial cable suitable for pulsed current - has sleeve surfaces and retaining collar forming contacts which can serve as plug
Inventor: WINKELMANN GUENTHER
IPC: H01R9/05
Filed: 1991-06-20
Abstract: The h.v. cable (10) has at least one outer conductor (11,12) surrounding an inner conductor (13) and contacts (18,25) for connection between the conductors (11,12,13). At least the outer conductor (12) is connected around its circumference to its contact (18,25) for electrical contact such that the contact contributes a relatively small share of the inductance of the conductor and the conductor can act directly as a plug without additional components. ADVANTAGE - Reduced inductance.
Patent DE-4133480-A1 (DE)
Title: Corrosion resistant chrome-alloy steel exhibiting improved tensile strength and weldability - is used in mfr. of moulds in plastics industry and has compsn. having specified carbon and chromium@ contents
Inventor: WILMES SIEGFRIED DIPL ING
IPC: C22C38/18
Filed: 1991-10-09
Abstract: Corrosion-resistant chrome-alloy steel used for moulds in plastics industry, exp. boxes, exhibits good weldability and better strength and corrosion resistance due to undergoing heat tempering to produce tensile strength of 900-1200 N/mm in damp air, esp. in fitting areas in multipart moulds. The compsn. consists in wt.% of; max. 0.28 C, 15.5-17.5 Cr, min. 0.05 N, with value of (C+N) 0.25-0.36. Pref. steel compsn. in wt.% is: max. 1.0 Si (pref. 0.15-0.5), max. 1.6 Mn (pref. 1.0-1.5), max. 0.18 S (pref. 0.09-0.16), 0.4-0.75 Ni (pref. 0.45-0.6), max. 0.35 Mo (pref. 0.1-0.2), balance Fe (including impurities produced during mfr.). The value of (C+N) is 0.27-0.35 wt.%, pref. 0.28-0.34. Mn content is between 8 and 14 times, partic. 10 times that of S, which is pref. 0.1-0.15 wt.%. ADVANTAGE - Heat tempering produces complete martensitic structure, leading to low tendency of ferrite pptn. Limiting C content prevents localised redn. in Cr content.
Patent DE-4139126-A1 (DE)
Inventor: FOBBE HELMUT DR
IPC: C09D5/44
Filed: 1991-11-28
Abstract: The invention relates to a process for preventing or reducing the discoloration after stoving of enamel coatings produced by the cathodic separation of aqueous electro-dip enamels polluted with iron ions and containing as the binder: A-1 at least one cationic amine-modified epoxy resin containing active hydrogen atoms; or A-2 at least one cationic polyacrylate resin containing active hydrogen atoms; and, as the cross-linking agent: B at least one aliphatic or cycloaliphatic blocked polyisocyanate present as part of the amine-modified epoxy resin or part of the cationic polyacrylate resin or as a separate component. In the process, an ester of 3-(3,5-di-tert.butyl-4-hydroxy-phenyl) propionic acid and a polyalcohol is incorporated into the electro-dip enamels.
Patent DE-4140979-A1 (DE)
Title: Mechanical-hydrostatic transmission for vehicle diesel engine - incorporates two hydrostatic machines with shaft of non-driven sun wheel coupled to rotor of hydrodynamic retarder
Inventor: HAGIN FAUST DIPL ING
IPC: B60K17/10
Filed: 1991-12-12
Abstract: The transmission (2), inserted between a diesel engine and the axle drive (8), has a planetary gearing (9), with at least 4 shafts, at least 2 sets of planetary wheels (13, 14), 2 sun wheels (10, 12) and input and output shafts (6, 7). A pair of hydrostatic machines (3, 4), selectively operated as a pump, or a motor is associated with respective shafts of the planetary gearing. One of the hydrostatic machines (4) is switched from the output shaft (7) to the non-driven sun wheel (12), upon switching the function of the other hydrostatic machine (3), via a switched coupling (WSK). The shaft (11) of the non-driven sun wheel (12) is coupled to the rotor (38) of a hydrodynamic retarder (36) of relatively small weight and size. USE/ADVANTAGE - For commercial vehicle, e.g. omnibus with reduced retarder weight and size.
Patent DE-4201887-A1 (DE)
Title: Building fence with pedestrian covering - comprises width-adjustable support frame with roof component width unalterable
Inventor: DRESSLER PETER
IPC: E04G21/32
Filed: 1992-01-24
Abstract: The building fence has a roofed passage for pedestrians, width-adjustable and reinforced grip unions for roof and wall surfaces. Through the height adjustment of the support frame bearer column, the angle (alpha) to the roof bearer (E) and the distance (F) between the parallel support frame columns (C+D) are altered. The fixture points (L) which join the roof carrier (E) with the support frame columns (C,D) are of a hinge-type, so that the required angle displacements and an assembly to bearing points is possible. USE/ADVANTAGE - As a fence running alongside a major building site, between it and the highway, which affords passage to pedestrians with adequate overhead cover, and which takes account of varying width restrictions.
Patent DE-4202256-A1 (DE)
Inventor: KIESEL GERD H DR ING
IPC: B60H1/00
Filed: 1992-01-28
Abstract: An air duct arrangement for the ventilation or air conditioning of a motor vehicle interior compartment is described, which compartment is provided with multi-layer moulded lining elements. In this arrangement, air ducts are bounded in the region of the lining elements by means of two wall parts which are bonded to one another in a permanently elastic manner by means of a connecting flange. One of the said wall parts is respectively formed directly by the lining element itself and the other wall part is formed by a thermoplastic moulded part which is arranged on the rear of the lining element. <IMAGE>
Patent DE-4204531-A1 (DE)
Title: Air ventilator, esp. radial type - has vanes connected to hub fitting central shaft by elastic mountings
Inventor: VOGEL JUERGEN
IPC: F04D29/28
Filed: 1992-02-15
Abstract: A ventilator (10) has a hub (14) which fits onto and rotates around a central shaft. Vanes (30) for creation of out flow during ventilator (10) rotation are connected to the hub (14) by elastic mountings. The ventilator components are moulded in PP, PBT, PET, PVDDF or a polyamide e.g. PA 6.6. The polymer is pref. reinforced with a fibrous or powdered filler. USE/ADVANTAGE - For air ventilation, e.g. of electric motors used in high pressure piston pumps. Cheap, simple construction with long life.
Patent DE-4205726-A1 (DE)
Title: Airbag mounting on steering wheel - has clamping plate securer onto grooved nut in centre of wheel mounting
Inventor: CUEVAS JESS A
IPC: B60R21/203
Filed: 1992-02-25
Abstract: The airbag container has a shaped mounting (14) which is secured onto the control nut (99) by a mounting ring (94) and a clamped grip. A clamping plate (110) secures the air bag module and is clamped into the mounting. No separate fasteners are required. A single fastening (116) enable the module to be secured or replaced. The module comprised the folded, encapsulated airbag and the charge. ADVANTAGE - Simple fitting, simple replacement.
Patent DE-4209488-A1 (DE)
Title: Ectogenic particles with smooth surface and/or concave segments
Inventor: ZOTZ RAINER DR
IPC: A61K49/22
Filed: 1992-03-24
Abstract: Echogenic particles contg. a gas and a substance or mixt. of substances to give shape that are biologically degradable and/or can be excreted and which can pass the lungs in the circulating blood of vertebrates have essentially smooth surfaces and a shape made up of no or 1-10 concave surface segments, or have surfaces which are not smooth and a shape made up of 1-10 concave surface segments.
Patent DE-4220196-A1 (DE)
Title: Error correction system for semiconductor memory - uses syndrome signal to provide correction signal for each stored data group
Inventor: MAKIHARA HIROYASU
IPC: G06F11/10
Filed: 1992-06-19
Abstract: The error correction system uses a correction circuit for error correction via Hamming matrix operation. Each memory field holds quantity of data divided into 2 data groups and priority data, used with these data groups to provide syndrome signals via a syndrome signal generator. A correction signal generator sequentially provides correction signals for the two data groups in synchronism with the operation of a data group selector, in response to the supplied syndrome signal, with corresponding correction of the stored data via a data correction stage. USE - For read only semiconductor memory.
Patent DE-4221916-A1 (DE)
Title: Monitoring circuit for switch status in electrical power circuit - has switch coupled to additional AC source and circuit elements forming resonance circuit
Inventor: UEBEL HELMUT DIPL ING
IPC: H01H47/00
Filed: 1992-07-03
Abstract: An electrical switch (S) controls the connection of a load (L) to a DC supply (G). When closed the current flows through the primary winding of a transformer (U). An AC voltage supply (W), coupling capacitors (C1, C3), a resistor (R) and a current limiting resistor (Rb) are also coupled to the transformer. Together they form a switch status monitoring circuit (US). The AC signal is superimposed on the DC and causes an induced AC component to be transmitted by the transformer. This signal produced by the resonance circuit indicates the switch status. The circuit may be adapted for use with two series switches. ADVANTAGE - Allows switch to be monitored independently of mechanical construction and characteristic.
Patent DE-4222412-A1 (DE)
Title: Conveyor belt for food industry - comprises plastic sections joined to form endless belt in which one or more permanently magnetic or non-magnetic bars are inserted
Inventor: AMSTAD KURT
IPC: G01V15/00
Filed: 1992-07-08
Abstract: The transport belt is used to convey confectionary articles and comprises a polyester weave which has a number of spaced apart warp threads (2) which extend parallel to the transport direction together with a number of spaced apart weft threads (3). The warp and weft threads form a kind of grid, whereby the distance between adjoining warp threads is greater than that bewteen adjoining weft threads. In the belt, at least at one point one or more, permanent-magnetic or non-magnetic metal bars (4) are inserted, the thickness of which is smaller than that of the belt and whose longitudinal axis extends vertically to the transport direction of the belt. The bars extend from the edge of the belt over a part of the entire width. One end of each bar is adhered to the belt. The belt is made of a polyester or plastic weave and the bars are inserted in the weave in the place of several warp threads. The magnetic field induced in the vicinity of the bars is detected (5) by a sensor (5) positioned above or lower the belt to control the speed, retardation, acceleration, positioning, etc. of particular sections of the belt. USE - A conveyor belt for the food industry which is endless and composed of joined sections.
Patent DE-4224051-A1 (DE)
Inventor: HEIL MICHAEL
IPC: B60H3/06
Filed: 1992-07-21
Abstract: It is known to fit the front hood (1) of a motor vehicle with a filter (5) to clean the fresh air supplied to the interior of the vehicle. According to the invention, the fresh air is taken in through a shared intake aperture (4) and it passes through two separate filters (6). The fresh air cleaned in each filter (6) is then taken separately to a shared air manifold (13) in which is fitted the blower of a heating and/or air conditionning installation. The cleaned fresh air is taken on from there in the usual way.
Patent DE-4225751-A1 (DE)
Title: High accuracy positioning appts. for different colour print modules - uses carrier having pivoted mounted latches engaging locating pins on each module
Inventor: BOEHMER GEORG
IPC: H05K7/14
Filed: 1992-08-04
Abstract: A number of printer modules (3A-3D) are built into a machine to provide different colours and operate on a thermal transfer process. Each module operates with a print roller that spans the width of the printer, and paper is transported by a transfer belt unit (44). The units are precisely spaced along the bed of the printer in order to provide high accuracy print registration. The location of the modules is obtained using pivot (24) mounted latch elements (2) that engage with pins (32) on the modules. USE/ADVANTAGE - High accuracy multi-colour print registration.