baber/WOPTO huggingface dataset:
Patent DE-3923684-A1 (DE)
Title: Drying carbon tetra:chloride using sodium-lead - esp. for use in treating waveguide preform tubes
Inventor: HAHN GERHARD DR
IPC: C07C17/38
Filed: 1989-07-18
Abstract: Drying of CCl4, esp. for use in the internal coating or collapsing of substrate tubes for optical waveguides, is carried out by adding Na-Pb to liq. CCl4, pref. in an 10g. NaPb per litre CCl4. NaPb in solid (tablet) form is added to liq. CCl4, in an amt. 10g. NaPb per litre CCl4 so that the Na reacts with any H20 in the CCl4. Any H2 which dissolves in the CCl4 is removed by bubbling with 02 or N2. The CCl4 is introduced into substrate tubes by passing e.g. 02 through the dried Ccl4 to form CCl4-enriched 02 which is fed, opt. with other reaction gases, into the substrate tubes. ADVANTAGE - Good drying of the Ccl4 is achieved without the need for a molecular sieve.
Patent DE-3924284-A1 (DE)
Title: Generating trigger pulse derived from input pulse - which is digitalised and obtained code words are sequentially compared for use as peak value
Inventor: GUTEKUNST JUERGEN DIPL ING
IPC: H03K5/153
Filed: 1989-07-22
Abstract: The 50% trigger pulse (T) is generated during a tipae fluid, during which the input pulse (P) is more than half of its peek value. The input pulse is digitalised and a code word of the plate value is determined, while a code word corresp(1/2 WB max) to the half peak value is generated and fed to an input (15) of a digital comparator (16) of suitable bit width. It is compared with an input signal delayed by a digital shift register (13). The comparator changes its state, when the value of the delayed pulse code word is at least half of that for the peek value. USE/ADVANTAGE - For DME systems, with low-cost equalising of voltage devider, without need for precision resistors, but with vehichle operations.
Patent DE-3933441-A1 (DE)
Inventor: SCHROETER HANS JUERGEN
IPC: B01D53/047
Filed: 1989-10-06
Abstract: Carbon molecular sieve (CMS) for breaking down air into nitrogen and oxygen by the alternating pressure technique (PSA) having the properties described below. These properties are determined in a quality test in which a 200 ml container is filled with a carbon molecular sieve and air is first allowed to flow through for 2 minutes at 760 Torr, and then is evacuated for 2 minutes or 1 minute at 40 mbar. The gas volume collected (1 gas/1 CMS-volume = relative volume RV) as well as the average and maximum oxygen concentration are measured in the evacuation gas: a) attainment of a relative volume (RV) of 2.6 to 3.2 l gas/1 CMS in the 2-minute test; b) acquisition of a relative volume (RV) of 2.0 to 2.6 l gas/1 CMS in the 1-minute test; c) attainment of an average oxygen concentration of over 37 % vol. and a maximum oxygen concentration of over 64 % vol. in the evacuation gas in the 2-minute test, d) attainment of an average oxygen concentration and of a maximum oxygen concentration in the evacuation gas in the 1-minute test, which are above the values for the average and maximum oxygen concentrations in the 2-minute test.
Patent DE-3933770-A1 (DE)
Title: Vehicular electric power assisted steering with planetary gear - incorporates servomotor geared to steering column via clutch mechanism with free-wheel action inhibited at parking spees
Inventor: AHNER PETER DIPL ING
IPC: B62D5/04
Filed: 1989-10-10
Abstract: The rotor (16a) of the servomotor (16) drives the sun wheel (13) of the planetary gear (20) whose planet wheels (14a, 14b) revolve within a hollow wheel (15), rotating a pinion (21) in mesh with a gear wheel (12) on the steering column (11). Ball or roller bearings (19) enable the hollow wheel (15) to be immobilised in its housing (17). The free-wheel mechanism is locked by reactionary torque from the motor (16) and released when the steering wheel (11a) is rotated slowly through a wide angle. ADVANTAGE - Clutch becomes effective automatically when driver turns steering wheel without activation of servomotor.
Patent DE-4000790-A1 (DE)
Title: Colour signal processor for PAL video tape recorder - has signal reproducer contg. separate luminance and chrominance signals, and identifying signal, to residual chrominance component
Inventor: AIZAWA TOSHIRO
IPC: H04N9/82
Filed: 1990-01-12
Abstract: An electric signal from a recording medium is reproduced with a luminance and a chrominance signal, mutually separated. The reproducer (12) transmits also an identification signal corresponding to the residual chrominance component in the separated luminance signal on the recording medium. The luminance signal is reproduced by the luminance reprocer (13, 14) and the chrominance signal by a chrominance reproducer (15, 16) from the electric reproducing signal. A detector (16, 18) reproduces the identification signal.  To the detector output responds a luminance output device (17, 19) if the chrominace residual component is small.  In opposite instance the frequency components of the chrominance signal are removed. ADVANTAGE - Chrominance signal processing in a low-cost circuit.
Patent DE-4004768-A1 (DE)
Title: Electromagnetic radiator for localised hyperthermia treatment
Inventor: KOLMAKOV DMITRIJ NIKOLAEVIC
IPC: A61N5/04
Filed: 1990-02-15
Abstract: The electromagnetic radiator has a radiating electrode and a screening electrode (4) applied to opposite sides of a dielectric support (1). The radiating electrode has two individual plates (2, 3) coupled together via an electrical lead (5) which passes through the dielectric support (1) and the screening electrode (4), to act as a screened transmission line (7) at the rear of the latter. Each plate (2, 3) is rectangular with the plates (2, 3) arranged parallel to one another relative to the dielectric support (1).
Patent DE-4016847-A1 (DE)
Title: Electric heating device for space heating - has conductive coating applied to insulating substrate providing micro-spark gaps
Inventor: STADERMANN RUDOLF DIPL ING
IPC: H05B3/36
Filed: 1990-05-25
Abstract: The heating device uses a large area non-conductive substrate (1), evenly coated with a metal coating (2) of precise depth, contacted by an electrode terminal (3) at two opposite sides, the whole being enclosed by an air-tight encapsulation. The metal coating comprises a mixture of crystals of a conductive material, e.g. graphite, and a non-conductive material, with  small pore spaces between them acting as micro-spark gaps upon application of a voltage across the electrode terminals. USE - Overall room heating or for heating specific item.
Patent DE-4022006-A1 (DE)
Title: Profiled window or door leaf frame - has parallel profiled bars, forming mounting grooves for decorative strips
IPC: E06B3/30
Filed: 1990-07-11
Abstract: The leaf frame of profiled members has its outside surface covered by decorative strips, locking into mounting grooves, whose parallel edges are parallel to those of the outside surface. Each groove (16) is formed by parallel, profiled bars (18, 18') fixed to the respective frame member (2). - The bars are pref. of T-section, with the upright (21) fixed to the frame member, while the portion (22) of the bar furthest from the latter is L-shaped. The other portion (27) forms a flange bearing against the frame edge (19).
Patent DE-4022920-A1 (DE)
Title: Substd. cyclic multi-ring phenol] derivs. - prepn. and used in rubber as protectant against ageing
Inventor: EHRHARDT DIETER DIPL CHEM
IPC: C08K5/13
Filed: 1990-07-19
Abstract: Cyclic multi-ring phenols (calix(4)arenes) of formula (I) are claimed. R1 = Me; R2 = CH2-N(C2H5)2, CH2-N(CH3)2, (II)-(IV) or (IV); or R1 = (substd.) Ph; and R2 = OH or Br. USE/ADVANTAGE - (I) where R1 = H, alkyl or (substd.) aryl; R2 = H, alkyl, OH, Br, CH2-N(alkyl)2, (II), (III), CH2-N(aryl)2 of (V), esp. (I) of formula (Ia) are used an anti-ageing additives for rubber, opt. with mercaptobenzimidazole and/or substd. p-phenylene diamine giving protection against ageing, O3 and crazing. Obtd. in improved yield and with shorter reaction times in a simple reaction.
Patent DE-4024946-A1 (DE)
Inventor: LINDENBACH ANDREAS DIPL ING
IPC: B29C45/14
Filed: 1990-08-07
Abstract: In order to provide a mould (1) for the production of coverings for line groups (4), in particular coverings of plastic or the like for cable sets, the said mould comprising an upper part (2) and a lower part (3), having at least one insert (5) for sealing off the emerging line group (4), the insert (5) consists of a material which has a Shore A hardness between 60 and 90. As a result, coverings for line groups (4) of different diameters (D1 to D2) can be produced. <IMAGE>
Patent DE-4025855-A1 (DE)
Title: Application of electric lighting esp. to various vehicle door locks - involves variety of doorway and keyhole or card-slot illumination devices and contacting or contactless switches
Inventor: WILKE PETER DIPL ING
IPC: E05B17/10
Filed: 1990-08-16
Abstract: Light-emitting diodes, filament lamps of neon lamps are used with various kinds of switches, magnetic cards, pushbuttons, contacts and proximity switches or ultrasonic or infrared detectors. The lighting is visible from inside and outside. The entire doorway is illuminated in addn. to the actual lock. The light is switched on by completion of a circuit through the cylinder lock and the light-emitting devices and switching elements cited. Corresp. graphical presentations could be produced after consultation with interested parties. USE - On e.g. motor vehicle and dwellinghouse door locks, padlocks.
Patent DE-4030488-A1 (DE)
Inventor: MELLOR ROBERT B
IPC: C02F1/72
Filed: 1990-09-26
Abstract: A process is disclosed for extracting reducible or oxydizable substances from an aqueous solution. The aqueous solution to be treated is contacted with immobilized oxidoreductases, possibly in the presence of co-immobilized electron carriers, and reduction or oxidation equivalents are at the same time supplied thereto. A potentiometric cell, in particular a throughflow cell is further disclosed, having an electrode body and immobilized oxidoreductases, and possibly co-immobilized electron carriers as well.
Patent DE-4030585-A1 (DE)
Title: Body stimulating appts. with applied electrode(s) - controlling current and/or polarity using gas FET acting as sensors
Inventor: ZIMMERMANN JOHANN DIPL ING
IPC: A61N1/26
Filed: 1990-07-12
Abstract: A single or several ion generators (3) are connected in series and/or parallel with one or more gas discharge lamps by at least one potentiometer. The lamp(s) is or are supplied by battery or mains power appts. via one or more leakage reactance transformers. Ion emitting or leading off electrodes (4) and at least one application electrode (1) are connected. The latter controls the stimulating current and/or the polarity. The basic level of the current or potential is set by the potentiometer(s) (5).  Current from the battery or mains appts. (6) to one or more frequency generators (7) supplying the leakage transformer(s) (8) and further to the gas discharge lamp(s) (9) connected to at least one MOSFET (10). A switch (12) changes the polarity of the stimulating current. ADVANTAGE - Robust for wide application, can be miniaturised.
Patent DE-4034710-A1 (DE)
Title: Bearing for steering column jacket - has pivoted jacket clamp element of U=shaped form pivotal about vertical axis
Inventor: ALBRECHT WILHELM
IPC: B62D1/184
Filed: 1990-11-01
Abstract: The bearing is for the jacket of a steering column of a motor vehicle, esp. a car. It has U-shaped clamp element, engaging around the jacket, which is fastened using a clamping device. The clamp element (2) is positioned, so that it may be pivoted about a vertical axis (5a), which extends at a distance to the longitudinal axis (1a) of the jacket (1). ADVANTAGE - Simplified, prevents axial displacement of steering column jacket during accidents.
Patent DE-4038226-A1 (DE)
Inventor: HETTICH ALFRED DIPL ING
IPC: F16H3/54
Filed: 1990-11-30
Abstract: A hand-held rotary power tool, especially a rechargeable screwdriver, with an automatic torque-dependent two-speed drive has at least two planet gears (14. 15, 16) and a torque-dependent clutch (30) which short-circuits the first planet gear (14) below a predetermined torque so that the drive spindle (13) directly drives the second planet gear (15) and once more actuates the first planet gear (14) above that torque. The clutch (30) is actuated by an axial power derived from the reactive torque of the second planet gear (15) in such a way that it is engaged below the predetermined torque and disengaged above that torque and the annular gear (26) of the first planet gear is completely braked. In the engaged state the clutch (30) connects the annular gear (26) and the pinion cage (21) in the first gear (14).
Patent DE-4101322-A1 (DE)
Title: Edge-jointing systems for flat sheets - are edge features with cross=sections of equal thickness to complement each other when assembled and to be glued or screwed together
Inventor: FLICKER ALBERT
IPC: E04B1/61
Filed: 1991-01-18
Abstract: An assembly has at least two pref. flat sheets and a feature which enables them to be joined together at the edges. Each such sheet has at least one of the features; the join can be made from one given side, and the features of the two sheets complement each other. The join can include a silicon seal; the flat sheets and/or joining features are pref. made of acrylic plastics of GRP. ADVANTAGE - The sheets can be joined together from either side when installed. The means of joining are simple and are fixed together in a convenient manner.
Patent DE-4102041-A1 (DE)
Inventor: AHLBORN GUENTER
IPC: B61D39/00
Filed: 1991-01-24
Abstract: The invention concerns an enclosed railway goods wagon with hoods (4, 5) which lie in the same plane when closed, are fitted with joints (7) and are divided at the apex. The hoods can be lifted and swung out to open them and can each be slid over another hood (4 or 5) in the closed position. The aim of the invention is to make it possible to expose more than half, preferably two-thirds, of the loading surface of a goods wagon of this kind. This aim is achieved by virtue of the fact that the wagon has three hoods (4 and 5) whose adjacent ends are tightly joined to each other by labyrinth seals (6). To open the hoods (4 or 5), one of the outer hoods (4) and the middle hood (5) are lifted and swung out from the closed position into a sliding position, placing them on a common rail (13), and the middle hood (5) is slid over the outer hood (4) in the sliding position, or the outer hood (4) in the sliding position is slid under the middle hood (5), or the outer hood (4) in the sliding position and the middle hood (5) are slid over the outer hood (4) in the closed position.
Patent DE-4104698-A1 (DE)
Title: Heat exchanger with tubes with helical fins - which can be screwed into holes with radial slits
Inventor: GEUE WALTER DIPL ING
IPC: F28F9/18
Filed: 1991-02-15
Abstract: The heat exchanger has finned tubes which are supporte dby sheet metal plates arranged transversely to the tubes. The fins form a continuous helix around each tube. The tubes pass through holes in the sheet metal supports. Each hole has a dia. corresp. to the basic dia. of the tube. A radial slit in the edge of the hole extends to a distance corresp. to the tip dia. of the fins. The finned tube can thus be screwed through the hole with the fin engaging the radial slit. USE - For utilising the heat of the exhaust gases of an internal combustion engine. Heat exchangers.
Patent DE-4108096-A1 (DE)
Title: Keyboard arrangement for ergonomically designed typewriter - has separate keyboard blocks in linked housing enabling mutual relative tilting and separation
Inventor: BRAUN FRANZ
IPC: B41J5/10
Filed: 1991-03-13
Abstract: A keyboard arrangement consists of at least two spatially separate keyboard blocks (5,6) arranged in separate housings (2,3) and each operated by one hand of the user. The housings have at least one common linkage or a linkage (14,15) each in their upper facing corner regions to enable them to be tilted. The housings are also joined together by a transverse rod with elongated holes forming detents for the linkage to enable the housing separation distance to be varied. ADVANTAGE - Arrangement enables almost universal adjustment of individual keyboard blocks.
Patent DE-4109473-A1 (DE)
Inventor: KLEEBERG HUBERTUS
IPC: A61K36/58
Filed: 1991-03-22
Abstract: The invention discloses a process for producing a storable azadirachtin-rich insecticide from sperm nuclei of the neem tree. The insecticide consists of sperm nuclei of the neem tree which are crushed, dissolved and extracted. The solvent used is water, and the aqueous extract is mixed with an organic solvent which is incompletely miscible with water and in which the azadirachtin has a higher solubility than in water. Following phase separation, the solvent containing the azadirachtin is concentrated and finally removed. The elimination can also be carried out by adding a tenside to the aqueous extract containing the azadirachtin, mixing, heating to a temperature above the cloud point, separating the phases and then isolating the azadirachtin-rich tenside phase.
Patent DE-4111740-A1 (DE)
Title: Loader for piece goods, with three conveyor belts - has trolley with two-part projecting arm, and one belt, pivoted through 180 deg.
Inventor: KAYSS MANFRED DIPL ING
IPC: B65G67/08
Filed: 1991-04-06
Abstract: The loader is esp. for sacks, and has three conveyor belts. One belt is located on a movable trolley, with a pivoted arm at one end, on which the second belt is located. The third belt is held pivoted on the other end of the trolley. The transfer point between belts is always located above the pivot axis. The projecting arm (12) has two sections (16,18), which are pivoted relative to each other about a vertical axis (22). The second conveyor (24) is held on the second arm, so as to be pivoted through 180 deg. about a vertical axis. This belt is height-adjustable, and telescopically extendable. One end of the first conveyor (8) is adjustable towards the second conveyor, to extend over the pivot joint (14) of the arm on the trolley. Locking elements (42,44) lock the second arm section (18) to the first, or to the third belt (36).
Patent DE-4122042-A1 (DE)
Title: Wall fixture for fitment with baseplate - has fixture screw holes, stop piece, holder and load bearing part
Inventor: HUBER MANUELA
IPC: A47K10/10
Filed: 1991-07-03
Abstract: The wall-fixture has a screw-operated part and cover possessing the other part of the fixture. The base-plate is bent at an obtuse angle on the top and bottom edge towards the cover. The top edge has a guide for the cover along a lengthwise centre plane. There is a stop for the cover crosswise to the lengthwise plane. The top, inner side of the cover has a holder, and the underside has a hole for a load-bearing part consisting of the elastic load-bearer, a threaded sleeve and the fixture. The base-plate contains at least one compression-spring set in a sprung setting. ADVANTAGE - Absorbs static and dynamic loads and is in the form of a covered system-holder.
Patent DE-4124309-A1 (DE)
Title: Valve seat ring for IC engine - has seat ring faces in cylinder head base oval, when new
Inventor: HAAS ECKHARD
IPC: F01L3/22
Filed: 1991-07-23
Abstract: The valve seat ring is for an IC engine. The engine has a crankshaft with connecting rod, in a crankcase. The rod is connected to a piston, moving in a cylinder with head, containing valves. The valve plate has a circular valve seat face, which in rest positions, engages on seat ring faces in the cylinder head base. The valve seat ring faces are oval, when new. The larger ovality is inclined through 1-20 degrees, pref. 10 degrees, relative to the longitudinal cylinder head axis, extending through several cylinders. ADVANTAGE - Acceptance of new engines can take place without delays, simple assembly of valve seat rings.
Patent DE-4127874-A1 (DE)
Title: Clock with display of hours and minutes - has gear wheel with minute hand fixed to eccentre and external gear ring with Nx13 teeth
Inventor: SCHOELER-BISSMEIER ECKHARD DR
IPC: G04B19/20
Filed: 1991-08-22
Abstract: The clock includes a gear wheel with a multiple of 12 teeth which is rotated about an excentric axis by engaging with an outer gear ring (2). The gear wheel rotates hypocyclically about its own and the eccentric axis and covers a twelfth of a turn for each complete turn of the outer ring. A minute hand (4) is fixed to the excentre (1) for display of minutes. The outer ring has a multiple of 13 teeth so that the rotation of the excentre about its drive axis (11) and the rotation of the gear wheel (3) about its axis are in opposite directions. ADVANTAGE - Simplifies reading of minutes.
Patent DE-4132536-A1 (DE)
Title: Adjusting water content of electrolyte in fuel cell - using gases entering cell to transport water vapour over water surface, pref. membrane
Inventor: KOHLMUELLER HANS DIPL ING
IPC: H01M8/04119
Filed: 1991-09-30
Abstract: Adjusting the water content of the electrolyte (8) in acidic or alkaline fuel cells (1) is claimed. At least one of the gases entering the fuel cell is used to transport water vapour and led over a tempered water surface (36). ADVANTAGE - The water content can be adjusted to the required amts.
Patent DE-4133200-A1 (DE)
Inventor: LAPOINTE LARRY PATRICK
IPC: A47C1/124
Filed: 1991-10-07
Abstract: A chaise lounge recliner chair (300) which incorporates an intermediate leg support member (312) for providing support to the thighs and areas behind the knees of the legs of an occupant of the chair. The intermediate leg support member (312) is connected to a portion of the seat (306) of the recliner chair and a portion of the leg rest member (310) of the chair. When the leg rest member (310) is in an extended position the intermediate leg support member (312) provides a normal slightly convex support surface. As the seat back (302) of the chair is reclined, it causes the seat member (306) to be extended outwardly which causes the intermediate leg support member (312) to assume a pronounced convex surface. A plurality of elastic straps (324) are further included and disposed between the seat (306) and leg rest members (310) to prevent the intermediate leg rest member (312) from crowning downwardly relative to the chair frame when the leg rest member (310) is in it extended position. <IMAGE>
Patent DE-4134219-A1 (DE)
Title: Gear tooth pump with variable volumetric flow - has additional gears which are disconnected from driving shaft as pressure rises
Inventor: BOLZMANN JOERG DIPL ING
IPC: F04C2/08
Filed: 1991-10-16
Abstract: A gear tooth pump has three pairs of meshing gears (3,4)(5,6)(7,8) which are mounted side by side in a housing (1). The gear (3) is formed integrally with the driving shaft (9). The driving shaft has an axial bore which receives a piston (6). This piston has splines on its outside surface which can engage splines in the bores of the gears (3,5,7). A compression spring (24) acts on the piston so that its driven into the bore of the gears (5) and (7) so that they are driven with the gear (3). The bore of the gear (7) is connected by a passageway (22) to the pump outlet so that pump delivery pressure acts on the piston and disengages it from the gears (5) and (7) and so reducing the pump flow. USE/ADVANTAGE - Gear tooth pump for lubricating oil for an engine. The volumetric flow is reduced as pressure rises.
Patent DE-4138857-A1 (DE)
Title: Non-jamming coupling for rotary part of agricultural attachment
Inventor: BODO PAL
IPC: A01B71/04
Filed: 1991-11-26
Abstract: A non jamming coupling for the rotating part of an agricultural attachment allows the cylindrical journal (2) of the rotary element (5) can rotate in the bearing casing (4).     The shoulder (7) of the casing (4) penetrates axially inside the collar (8) of the rotary element (5) a distance may times greater than the gap (10) between them, and the gap (10) is a minimum of 0.5 and a maximum of three millimetres, preferably two millimetres wide.