baber/WOPTO huggingface dataset:
Patent DE-4000278-A1 (DE)
Title: Inorganic sintered mouldings
Inventor: TER MAAT JOHAN HERMAN HENDRIK
IPC: B22F3/10
Filed: 1990-01-08
Abstract: Process for prodn. of an inorganic sintered moulding (I) comprises injection moulding or extruding a mixt. of a sinterable inorganic powder (II) and polyoxymethylene binder (III) to form a green moulding (IV), removing the binder (III) and sintering; the novelty is that (III) is removed by treatment of (IV) in a gaseous atmos. contg. an acid or BF3 gas.  Treatment of (IV) is carried out at 20-150 deg.C; acid is HNO3, Halogen and/or an organic acid with b.pt. below 130 deg.C, pref. formic acid. (II) is, e.g. alumina, zirconia, yttrium oxide, SiC, Si3N4, Si powder, Fe powder, etc.; (III) is a homopolymer or copolymer of trioxan with ethylene oxide, 1,3-dioxolan, butanediol formal (V), etc., with mol.wt. 25,000-75,000.
Patent DE-4006482-A1 (DE)
Title: Arrangement for retaining water which has been used in fire fighting - comprising rigid barrier with compressible open-celled foam layer of plastics underneath contg. impregnant filling cells in compressed state
Inventor: MUELLER WILHELM
IPC: C08J9/42
Filed: 1990-03-02
Abstract: Arrangement for inhibiting flowing away of the water consists of rigid barrier body provided on at least its underside with compressible foam article (I) comprising open-celled polyurethane and/or polyethylene and/or PVC, the foam cells contg. impregnant (II) which, when (I) is in compressed state, fills reduced cell vol.. (I) at 40% compression has compression hardness (DIN 53572) 0.01-0.02 MPa. (I) has tensile strength (DIN 53571) 0.2-0.3 MPa. Extension to break (DIN 53571) of (I) is 350-650%. USE/ADVANTAGE - Retaining water sprayed to fight fires which is not collected in channel system or in water courses or not absorbed in earth and which may be contaminated by polluting substances. Complete damming is obtd. despite uneveness or roughness of floor, and permeation of water through (I) is prevented.
Patent DE-4009380-A1 (DE)
Inventor: KAISER MANFRED DIPL PHYS
IPC: G02B6/42
Filed: 1990-03-23
Abstract: There is no problem to excite the fundamental mode in a single-mode optical waveguide, if a laser is used whose operating wavelength is above the cutoff wavelength of the guide. However, these lasers are presently very expensive. Especially for the use in the subscriber area, where the relatively short transmission lengths allow to accept a certain amount of attenuation, it is proposed to use an inexpensive laser (6) whose operating wavelength, however, lies below the cutoff wavelength of the coupled optical waveguide (10). The excitation of only the fundamental mode is, according to the invention, possible with such a laser (6). A single-piece metallic module housing (1) is provided in which the laser (6), being moved perpendicularly to the module housing axis (1), is aligned to it by adjusting screws (12). A magnifying optic (9) is provided. The magnification causes a decrease of the angle at which the laser light reaches the face of the optical waveguide (10). The optical waveguide (10), being coaxially centered in a cylindrical bore (5), is adjusted axially to an optimal coupling and then fixed.
Patent DE-4011142-A1 (DE)
Title: Stopper screwing into threaded sleeve - is used with gas pipe, and uses spanner with shaft and gas tight housing, with lock and pipe clamp
Inventor: HAGER HELMUT
IPC: F16L41/16
Filed: 1990-04-06
Abstract: The appliance for safely screwing in and out a stopper (7) into the threaded sleeve (1) of a gas-pipe (2) has a spanner (8) so that the spanner can be engaged with and disengaged from the lock. The spanner shaft (6) slides through the end of the lock facing away from the threaded sleeve (1) an elbow (11) has a locking-valve (5). A pipe clamp (3) fixes the housing (10) to the gas pipe (L). USE/ADVANTAGE - The closure stopper can be safely screwed in and out of the threaded sleeve.
Patent DE-4019021-A1 (DE)
Title: Belt drive transmission for lawn mower - makes use of Bowden cable to give stepless control
IPC: A01D34/69
Filed: 1990-06-14
Abstract: The small vehicle such as a lawn mower has a belt drive (7).  This can form a connection between a drive shaft and an output shaft (17). A differential gear (12) has two output elements (21,22) one of which forms the transmission element (21) of the differential (12) and the other is steplessly retardable as a control element (22) by a Bowden cable (20). USE/ADVANTAGE - Drive for a lawn mower which allows the output shaft to be accelerated smoothly over a large speed range from a stationary position.
Patent DE-4020456-A1 (DE)
Inventor: MARSCHNER MICHAEL DR
IPC: C08G18/08
Filed: 1990-06-27
Abstract: The invention concerns the use, in the dressing of leather, of an aqueous polyurethane dispersion containing 100 parts by weight of di- and/or polyisocyanates, 61 to 450 parts by weight (relative to the isocyanate content) of castor oil and/or epoxidized fatty-acid esters ring-opened with C1-8 alkyl alcohols.
Patent DE-4033379-A1 (DE)
Title: Plastics wall cabinet with lockable inner compartment -  has inner frame with door and shelf fixable as required
Inventor: LELLE HANS-DIETER DIPL ING
IPC: A47B67/00
Filed: 1990-10-17
Abstract: The plastics wall cabinet is provided on the inside wall with ribs (5) to take shelf bases to form the inner compartment which is to be closed by a lockable door. The front boundary face of the inner compartment is formed by a frame (9) whose lower longitudinal groove (17) embraces noses (13) provided on the cupboard base (2) and whose upper longitudinal groove (12) holds the edge (14) of the shelf base (6) which belongs to the cupboard compartment above and which forms the upper boundary face of the inner compartment. This shelf base fits by detent noses (8) onto ribs (5). The lockable door is peferably mounted by pins (15) on the frame (9). ADVANTAGE - The shelf bases can be fitted by the user according to his requirements.
Patent DE-4038510-A1 (DE)
Title: Index adjustment for printing unit with pref. three printing mechanisms - involves each mechanism having platen cylinder, and rubber sheet cylinder with inclined toothed drive gearwheels
Inventor: THEILACKER KLAUS DIPL ING
IPC: B41F13/14
Filed: 1990-12-03
Abstract: Shaft pins (12-15) for the platen and rubber sheet cylinders (4-7) are located in a side wall (11), and are driven by drive gearwheels (18-23). All gearwheels involved have inclined toothing, whereby the teeth of wheels interengaging have a counterposed angle of inclination. On the shaft pin (13) of the one rubber sheet cylinder (4), and on that (14) of the other such cylinder (6) are located two drive gearwheels (19, 20; 21, 22) acting as double gearwheels. With the drive gearwheel (20) of the one rubber sheet cylinder (4) engages the main drive gearwheel (10) which is connected via a shaft (36) with the main drive of the machine. The other drive gearwheel (19) on the shaft pin (4) of the rubber sheet cylinder (4) meshes with the drive gearwheel (18) on the shaft pin (12) of the platen cylinder (5). USE - As an index adjustment for a three-part printing unit.
Patent DE-4042011-A1 (DE)
Title: Play model of forklift truck - has simple structure and features providing close visual and functional similarity to real object
Inventor: WEINHOLD RUEDIGER
IPC: B66F9/06
Filed: 1990-12-28
Abstract: The children's play model is designed closely to reflect the visual and functional features of a full-sized working forklift truck. The child sits on an adjustable seat (35) and propels the model by foot operated cranks on the shaft of the front wheels. Steering is by swivelling (57) of the narrow-track pair of rear wheels (51), whose steering link is connected by bowden cable to a nut driven by rotation of the steering handwheel (62). The lifting forks (122) are raised and lowered on the front guides (114) by rotation of the crank and leadscrew (146, 144); movement of the nut (141) on the screw is transferred to the lifting forks via the lever arms (131). The framework of the model is made from welded steel tube. USE/ADVANTAGE - Close visual and functional similarity to real thing. Stable and safe to use. Simple to manufacture and maintain.
Patent DE-4104485-A1 (DE)
Title: Rotary angle sensor for relative motion of two components - has measuring track on foil radially, helically fitted inside or outside one component
Inventor: BAREISS MANFRED
IPC: G01D5/00
Filed: 1991-02-14
Abstract: The sensor processes several revolutions of a rotary component (1) w.r.t. a second component (2) with a measuring track coupled at one point, at least, to the first component. To the second component is firmly secured a scanner (5) for the measuring track values. The track is located on a foil (3), forming an external or internal spiral at one component. Between the foil turns is fittred a separator (4) such that a part of the turns lies radially inside, and another part of turns radially outside the separator. The number of turns is variable with the rotation of at least one component. ADVANTAGE - No need for transmissions, and precise measuring values with low hysteresis.
Patent DE-4104623-A1 (DE)
Title: Pretreatment of material contg. solids for biological decontamination - by forming pumpable compsn., opt. with addn. of water, homogenisation, and addn. of water absorbent substance, to form friable mixt.
Inventor: MAJCHERCZYK A
IPC: C02F11/12
Filed: 1991-02-15
Abstract: In pre-prepn. of material contg. solids, for biological decontamination processes, the material is converted, opt. with addn. of water, into a flowable, pumpable compsn. with total water content of 5-90 wt.%, w.r.t. dry matter, the compsn. is homogenised, and is finally solidified by addn., of solids with high water adsorption, to a friable structure with water content of 2.5-85 wt.%, w.r.t dry matter. USE/ADVANTAGE - The solid-contg. material is partic. difficultly homogenisable soil, or may be earth, sludge, mud or sediment. The pumpable compsn. can easily be transported, and decontamination may be ex-situ. Dust formation is avoided in treating dry earth, giving an enviroment-friendly proceD
Patent DE-4108110-A1 (DE)
Title: Retaining heat in buildings - involves sheep wool which is capable of breathing enclosed in retention zone
IPC: F16L59/02
Filed: 1991-03-13
Abstract: The retention zone (34) is limited by structural components of the building involved, and by a covering (32) which forms the wool (21) into a composite unit (30). The zone is divided into several chambers, and the wool is mixed with a binder which can be mineral, clay or plaster to form a fixed heat-retaining body, either in the shape of a tube or a plate. The sheep wool fleece is fitted sandwich-fashion between two layers of wool needle felt, the felt and the wool being joined to one another by needle work using their own fibres, such work being limited to selected areas. Such areas are sepd. by quilt seams. USE - For heat retention in walls, roofs and ceilings.
Patent DE-4116042-A1 (DE)
Title: Digital tachograph using data memory - recording speed and journey data on removable external recording medium with detector recording full-up state
Inventor: ISHIBASHI WATARU
IPC: G06F11/34
Filed: 1991-05-16
Abstract: A memory receives the data provided by a movement data generating stage, for recording it on an external recording medium inserted in the device. A detector provides a signal when no further space is available for recording the movement data on the external recording medium to allow the data relating to the journey start and end times and the journey distance to be recorded on a different part of the external recording medium. ADVANTAGE - Prevent loss of data when recording medium is fall.
Patent DE-4116130-A1 (DE)
Title: Extinguishing oil well fires and blowouts - uses hollow conical chamber and attached valve and fills chamber with quick setting concrete only after correct positioning
Inventor: KERFS EBERHARD DIPL ING
IPC: E21B33/02
Filed: 1991-05-17
Abstract: A means of extinguishing and sealing burning, oil or natural gas bore holes. The novelty is in the use of a two part appts. which allows accurate positioning over the bore hole, and allows heavy concrete to be poured and set only when the appts. is in position. The lower part of the appts. is a welded steel hollow cone into which is poured a quick setting concrete through several apertures. Once the concrete has set, typically several hours, the spring loaded piston valve in the upper section is closed by release of a retaining catch. Closing the valve extinguishes the fire and shuts down the blow out. A small hollow in the concrete is left, and through valves in the upper surface of the cone, allows oil to be released in a controlled way. ADVANTAGE - The relative light weight of the appts. allows for easy transport and alignment. The sudden closure of the valve shuts off the well completely so that re-ignition of the fire is not possible. Quicker and more certain than digging a shaft to the underground pipe.
Patent DE-4118103-A1 (DE)
Title: Shaped checker brick - has tongue side surfaces chamfered to run on to each other
Inventor: HOFMANN OTTO R DR ING
IPC: C03B5/237
Filed: 1991-06-03
Abstract: The checker brick, such as for regeneration chambers for glass kilns, is shaped so that the remaining side surfaces of the tongues are chamfered to run on to each other. Pref. the remaining side surfaces of the tongues form a common edge, with an equal chamfering, or the surfaces can be chamfered differently. The cover surface is offset from the base surface. One of the remaining side surfaces is an extension of the cheek surface of the shaped brick, and the other has the same positioning as one cheek surface of a shaped brick above it. The tongue height equals 0.3-1.0 times the cheek thickness, and the height of the opening is less than 1.5 times the cheek thickness. ADVANTAGE - The brick structure allows them to be assembled together easily, without allowing particles from the exhaust gas to build up on the tongues, which would affect the thermal transfer action.
Patent DE-4118245-A1 (DE)
Title: Suspended conveyor with carrier rail, chain , and trolleys - has chassis with opposite rollers moving on travelling rail, coupling housing with suspension gear
Inventor: WEBER MANFRED
IPC: B65G19/02
Filed: 1991-06-04
Abstract: The suspended conveyor consists of a chain (2), running in a carrier rail (1). The chain has couplings (4) with moveable coupling fingers (5). there are one or more trolleys (10), moving on a travelling rail (6). Each trolley has suspension gear (11), to carry goods, esp. textiles on hangers, a chassis (12), and a coupling housing (14). The chassis has two opposite rollers (13), each moving on one surface of the travelling rail. The coupling housing is located on the chassis, and carries the suspension gear. This is formed as a wire bracket, shaped like an upside down triangle. It is pivoted out of the direction of travel. The bracket is divided into three compartments, by two rails. ADVANTAGE - Light-weight, stable, safe, suspended goods centre automatically.
Patent DE-4121947-A1 (DE)
Inventor: MACK HELMUT DR
IPC: A61K38/05
Filed: 1991-07-03
Abstract: Described are 2-[3-(4-amidinophenyl)]propionic acid derivatives of formula (I), in which A, Ar and B are as defined in the description, and their preparation. These compounds are suitable for use in the treatment of illnesses.
Patent DE-4122940-A1 (DE)
Title: N-methylation of alpha-amino-beta-hydroxy-carboxylic acid derivs. - by reaction with formaldehyde to produce oxazolidine which is then reacted with hydride donor
Inventor: GROTH ULRICH DR
IPC: C07C227/18
Filed: 1991-07-11
Abstract: The prepn. of amino acid derivs. of formula (I) comprises reacting an amino acid deriv. of formula (II) with formaldehyde in the presence of acid to give an oxazolidine of formula (III) and treating this prod. with a hydride donor in the presence of acid. R1 and R2 = each H, 1-8C alkyl (interrupted by O or S, and/or contg. a double bond and/or with a terminal COOR3 gp.), or Ph or benzyl, R3 = 1-8C alkyl or benzyl. USE/ADVANTAGE - (I) are building blocks for the synthesis of biologically active peptides, some of which can be used therapeutically. The process overcomes the difficulty in finding a suitable protecting gp. for the OH gp. The process enables (4R)-4-(CE)-2-buteryl)-4-methyl-L-threonine methyl ester (a building block in the synthesis of the immuno-suppressive, cyclosporin A) to be prepd. which was previously not possible.
Patent DE-4127080-A1 (DE)
Title: Honing machine with guided honing tool - which is guided on both sides of workpiece for increased accuracy
Inventor: NAGEL WOLF DIPL ING
IPC: B24B33/02
Filed: 1991-08-16
Abstract: The honing machine has a rotating spindle (1) to which the honing tool (2) is fastened. The honing tool slides axially in a guide (3) which is mounted above the fixture (8) to which the workpiece (9) is attached. The honing tool passes through an opening (10) in the fixture (8) and through the hole in the workpiece (9). A second guide (11) is installed below the workpiece (9). This second guide has an upper part which slides telescopically in a lower part so that the honing tool is guided on both sides of the workpiece throughout the entire stroke of the honing tool. USE/ADVANTAGE - Honing tool which is guided on both sides of the workpiece to ensure a high degree of accuracy.
Patent DE-4131908-A1 (DE)
Inventor: WISSMANN ROLF BERNHARD
IPC: C08L51/06
Filed: 1991-09-25
Abstract: Blends of a polyamide and an olefin polymer such as polyethylene or polypropylene are compatibilized and toughened with a carboxylic acid (or derivative thereof) grafted olefin polymer such as polypropylene, either alone or in combination with a carboxylic acid (or derivative thereof) grafted ethylene-propylene-diene polymer. Delamination of the surface layer of injected molded articles made from these blends is improved by keeping the melt viscosity of the polyamide low relative to the viscosity of the unmodified polyolefin and preferably the other components as well.
Patent DE-4132744-A1 (DE)
Inventor: GRUBER MARTIN
IPC: B62D7/16
Filed: 1991-10-02
Abstract: Proposed is a ball-and-socket joint in which the socket (8/9) of the joint is slotted and turned through 180 DEG  when assembled. A helical pressure spring (12) holds the ball (2) in the socket (8/9), at the same time securing the joint correctly in rotation. The joint is intended for use in connecting jointed components in motor vehicles.
Patent DE-4135890-A1 (DE)
IPC: E05F15/44
Filed: 1991-10-31
Abstract: 1. Needle contact element for a safety contact rail. 2.1 Known safety contact rails are produced, for example, from a hollow rubber profile and a rib resembling a knife edge, arranged in the hollow rubber profile, both having electrically conductive zones. In known versions, these zones are connected via rivets, clips or screws to switching lines which transmit electrical switching pulses during the deformation of the hollow rubber profile and the connection of the hollow rubber profile and rib caused thereby. The known connection devices of switching lines and electrically conductive zones have not proved sufficiently reliable. 2.2 According to the invention, this disadvantage is avoided in that there can be inserted into the electrically conductive zones of the rib 2 and of the hollow rubber profile 1 needle contact elements 10, 11, to which the switching lines 8, 9 can be fastened, for example via a screw-type clamping device. At the same time, the needle contact elements have increasing conicity towards their free end and a needle tip 18 which forms an angle of approximately 70 DEG . <IMAGE>
Patent DE-4200245-A1 (DE)
Title: Tracing leakage gas flow emanating from surface - converting associated acoustic signal into electrical form for evaluation with detection threshold
IPC: G01M3/24
Filed: 1992-01-08
Abstract: The method involves converting an acoustic signal caused by a gas flow into an electrical signal. The electrical signal is amplified, frequency selected, added to an envelope signal and compared with a threshold value to detect a leakage. A high frequency component is extracted from the envelope signal, subjected to additional selection and processing and used as a comparison value with the specially formed threshold value. The separated HF component of low amplitude and duration envelope signals is released, amplitude and duration normalised and formed as equal voltage values considering frequency. ADVANTAGE - More sensitive method with minimal probability of measurement error.
Patent DE-4203698-A1 (DE)
Title: Permanent magnet assembly for moving coil instrument - has composite core incorporating moulded magnetic plastic ring ensuring homogeneous flux distribution
Inventor: KRZYWINSKI JACEK DIPL PHYS
IPC: G01R5/06
Filed: 1992-02-08
Abstract: The permanent magnet assembly (1) for a moving coil instrument having a linear scale has a composite core formed by a central boss (6) of ferromagnetic material which in the preferred construction is surrounded by a ring (2) of moulded magnetic plastic which may either have isotropic properties or may be magnetised radially to provide a bipolar flux. The core (6.2) is concentric with a soft iron ring (3) which provides the return flux path leaving a uniform annular air gap (4) for the coil, and two slots (7) are moulded in the core (2) to enable its correct orientation within the instrument. ADVANTAGE - Provides homogeneous flux distribution of uniform density in air gap. Moulded core has inherently precise dimensions, obviating need for machining, and fixing means, together with type member etc., are readily moulded-in, giving reduced manufacturing costs.
Patent DE-4208891-A1 (DE)
Title: Liquid cooled power semiconductor component - has ring-shaped outer housing gripping inner insulating housing to form liquid cooling channel with inlet and outlet
Inventor: ZENGERLE MANFRED DIPL ING
IPC: H01L23/473
Filed: 1992-03-19
Abstract: The power semiconductor component (1) has a disc-cell construction. A semiconductor crystal wafer (2) is contacted on both sides by metal discs (5, 6) having good thermal and electrical conductivity. A ring-shaped insulating housing encloses the semiconductor crystal wafer and both metal discs. A ring-shaped outer housing (12) grips the inner insulating housing in such a way that at least one liquid cooling channel (16) is formed. The cooling channel has a liquid coolant inlet and a liquid coolant outlet. ADVANTAGE - Has a small volume and can be economically manufactured.
Patent DE-4213559-A1 (DE)
Title: Mounting plate for pipes and conduits - has rows of regularly-spaced holes and slots of different sizes in repeating pattern
Inventor: LEIFELD HEINRICH
IPC: F16L3/223
Filed: 1992-04-25
Abstract: A girder used in mounting conduits and pipes for waste water, heating or ventilation is made from flat steel plate with several rows of holes parallel to the edges. The holes can be round or elongated and of different sizes but are regularly spaced to form a grid, a particular pattern of holes repeating after about eight holes in line. The rows of identical round holes have the holes spaced every 20 mm, displaced from adjacent holes by 10 mm. The slots are elongated by 6.5 mm compared with the round holes and the repeatable section length is 153 mm. The round hole diameters are 8 mm or 4 mm. ADVANTAGE Allows fastening of conduits and pipes of different diameters.
Patent DE-4225912-A1 (DE)
Inventor: TRAUTNITZ FRIEDR-WILH DIPL ING
IPC: H05K9/00
Filed: 1992-08-05
Abstract: Prefabricated absorber elements for cladding EMC test chambers consist of absorbers (1) which are fitted on a carrier panel (2). The carrier panel (2) is suspended in a substructure (3) which is fastened to a wall or ceiling. <IMAGE>