baber/WOPTO huggingface dataset:
Patent DE-3913800-A1 (DE)
Title: Accommodation of thermal expansion in pipework - has short branch pipe welded to main pipe forming cylindrical chamber enclosing sealed flexible metal bellows
Inventor: GRABIETZ JOACHIM DIPL ING
IPC: F17D5/00
Filed: 1989-04-26
Abstract: A pipe-work installation, in which a liq. circulates, is provided with an overpressure protection device to prevent damage to the pipework in the event of a pressure rise due to expansion of the liq. as a result of temp. changes. The device consists of a short branch pipe (2) which is welded to the main pipe (1). The branch pipe (2) forms a cylindrical chamber which encloses a sealed flexible metal bellows (3) which is filled with a gas, pref. air. The expansion of the liq. in the pipework is compensated by the compression of the bellows. USE - Accommodation of thermal expansion in pipework.
Patent DE-3915133-A1 (DE)
Title: Hair growth promoter compsns. - contain anti-androgenic agent and minoxidil
Inventor: LUDERSCHMIDT CHRISTOPH PROF DR
IPC: A61K8/49
Filed: 1989-05-09
Abstract: Topical compsns. for promoting hair growth contain at least one antiandrogenic agent (I) and minoxidil (II). (I) is ethisterone, norethisterone, a (nor)ethisterone alkanoate, 17 alpha-propylnesterlone, cyproterone acetate, chlormadinone acetate and/or ethynyl oestradiol. The comspn.  contain 0.1-1 wt. % (I) and 0.5-5 wt. % (II). The (I):(II) wt. ratio is 1:2-5. USE - The compsns. are useful for treating androgenetic alopecia.
Patent DE-3922024-A1 (DE)
Title: Battery-powered lamp for vehicular and domestic uses - has provision for recharging of nickel-cadmium cells via choice of alternative plug-terminated electrical leads
Inventor: BECH JAROSLAV
IPC: F21V21/002
Filed: 1989-07-05
Abstract: Twin fluorescent tubes supplied with current from Ni-Cd batteries give light with five times the conversion efficiency of filament lamps. An electronic circuit including a two-clock converter provides a capability of 20000 flicker-free starts. The lampholder encloses the electronic and batteries as well as a recharging portion into which alternative connectors are insertable for car and household applications. ADVANTAGE - More light is produced with higher efficiency in a compact device which is constantly ready for use, with a lifetime of 10000 hr (fluorescent tubes) and 1000 battery charge/discharge cycles.
Patent DE-3925105-A1 (DE)
IPC: B29C49/48
Filed: 1989-07-28
Abstract: In a blowmoulding process the parison is cooled, after extrusion into the mould but prior to blowing, to a temperature low enough to create inherent stress in the blown article but not so low as to prevent the material deforming plastically and without fracture during blowing. When used as a preform for subsequent moulding around a second, positive mould, the inherent stress results in substantial shrinkage during reheating. A blow pin used in the process has two passageways to allow cooling air to be passed into and out of the parison prior to blowing. A mould which may be used in the process has a recess in its internal wall adjacent to the knife line of the mould. During blowing plastics material flows into the recess thereby preventing the formation of an internal bulge along the knife line which is undesireable in certain applications such as limb prostheses.
Patent DE-3931841-A1 (DE)
Inventor: BACH ALFRED DR
IPC: C07K14/705
Filed: 1989-09-23
Abstract: New polypeptides are described which are dopamine D2 receptors. The polypeptides are produced by genetic engineering.
Patent DE-3933773-A1 (DE)
Title: Pocket calculator for e.g. restaurant waiter - has integral bill printer and operating system and acts as programmable menu
Inventor: JANOS SIPOS
IPC: G07G1/00
Filed: 1989-10-10
Abstract: The pocket calculator having built-in bill printer acts as an electronic menu and is preprogrammed with items, names and unit prices stored in groups.  The operating system enables the rapid selection of items according to name by group key selection and use of  forward and  reverse keys within groups. The selected items are multiplied by the entred quantities  and the results fed into the sum. When the total is complete the bill is printed. USE/ADVANTAGE - Simpler to operate than conventional calculators.
Patent DE-3934348-A1 (DE)
Title: Electrical discharge lamp - has bulb mounted in holder with contact made against leaf spring elements
Inventor: ULLRICH BERND
IPC: H01J5/54
Filed: 1989-10-14
Abstract: The electrical discharge lamp has a quarz glass tube with internal electrodes permanently fixed to projecting contact pins (11) at each end. The lamp is supplied with electrical power by being inserted into a pair of sockets (19, 20) at each end. Within the sockets are contacts in the form of shaped leaf spring elements (21, 22) that are welded to the ends of projecting connection pins. The ends of the contact plates are flared to facilitate entry over the pins of the lamp. ADVANTAGE - Cost effective lamp and holder.
Patent DE-3941800-A1 (DE)
Title: Device for gripping workpieces - has guide channel in tension jaw and entrainment member for precision handling
Inventor: TRENNER ALBRECHT
IPC: B25J15/02
Filed: 1989-12-19
Abstract: The device for gripping workpieces has tension fingers provided on tension jaws and moveable in a longitudinal axis (A). At least one tension jaw (4,5) has a guide channel (30) which has a centre axis (C) inclined at an angle (w) to a transverse axis (B). An entrainment member engages in this guide channel and is guided axially parallel to the transverse axis (B). The entrainment member is pref. connects to a piston which slides in a cross bore a cross the longitudinal axis (A).  Either side of the piston in thee cross bore there are work chambers which can be impinged by the pressurised medium. ADVANTAGE - A highly accurate operation is achieved wherein the path which the entrainment member must follow is small compared to the adjustment path of the  tension jaw.
Patent DE-4003543-A1 (DE)
Inventor: NADER WERNER DR
IPC: B01D61/14
Filed: 1990-02-06
Abstract: To deplete viruses in organic material, the material to be purified is conveyed through an ultrafilter or an ultrafiltration unit the depletion rate of which is previously determined. The filter or filtration unit is charged with viruses of the family Leviviridae and the viral count is determined before and after filtration and used to derive the depletion rate. The virus depletion can be monitored during the process by following the depletion of a marker.
Patent DE-4005617-A1 (DE)
Inventor: METT JOACHIM
IPC: E02F3/24
Filed: 1990-02-22
Abstract: The invention relates to a fastening device for the buckets (3) and possibly also the skim coulters (4) on cutting wheels. The buckets and possibly also the skim coulters (4) on cutting wheels. The buckets and possibly also the skim coulters are replaceably fastened to the periphery of the cutting wheel by means of joining elements. Viewed in the cutting direction, the buckets and possibly also the skim coulters are clamped in their front region and supported in their rear region (19), where they are arrested by means of connecting elements. The front and rear regions of the buckets or skim coulters have shoulders; the front shoulders engage in pocket-like receiving elements and the rear regions can be supported on other receiving elements.
Patent DE-4006196-A1 (DE)
Title: Woven car seat belt - comprises antistatic warp thread contg. carbon fibre
Inventor: REITER ERICH
IPC: D03D15/00
Filed: 1990-02-28
Abstract: Seat belt has at least one warp thread which is antistatic, and is not interwoven with the weft.  Antistatic warp thread (10) pref. runs through the material without being bound in by the weft threads (6,8). Other warp threads have open and closed sheds alternatively (4a,4b), in the usual manner.  Antistatic thread (10) is a strong polyamid, and contains a proportion of carbon fibre. The carbon fibre may constitute a section of the thread on the exterior, or it may be a core fibre. USE - Prevents accumulation of dirt at particular places on the belt, and which would rub off onto clothing of the wearer.
Patent DE-4007835-A1 (DE)
Title: Ore suspension smelting furnace - comprising side nozzles directed upwards to cause turbulence with flow from concentrate burner at top of shaft
Inventor: KEMORI NOBUMASA
IPC: C22B5/14
Filed: 1990-03-12
Abstract: Suspension or flash smelting furnace consists of a reaction shaft (3) located towards a side wall of the hearth (6) with a concentrate burner (2) at its top and rotatable side burners (19) which direct reaction gas (X,X') upwards towards a point located on a central vertical axis (18) of the shaft. USE/ADVANTAGE - Esp. for smelting concentrates such as  sulphide ores. The gas blast from the side nozzles causes a turbulence effect which ensures efficient mixing of gas and are particles and maintains the ore particles for a longer time in the shaft.
Patent DE-4009403-A1 (DE)
Title: Pipe coupling with sealing device - including elastic sealing ring having projecting beads, allowing certain amt. of flexing
Inventor: DIETL STEFFEN
IPC: F16L27/02
Filed: 1990-03-23
Abstract: (A) in a pipe coupling comprising a coupling strap (2) with an associated clamping device and a sealing device (12) the sealing device (12) has a closed elastic insert ring (13) having inwardly projecting, circumferential seating beads (16,17) at least at its opposite edges (14,15). The strap (2) is made o.s. of plastics and the insert ring (13) may have a third bead (19) which is located between the two edge beads (16,17) and which is sheathed with PTFE foil.  (B) A pipeline and a method of assembling a pipeline, using the coupling, are also claimed. ADVANTAGE - The coupling allows a certain amt. of flexing of the pipeline without loss of sealing. The PTFE foil provides protection against corrosive media.
Patent DE-4009635-A1 (DE)
Title: Container store with rack system - is integrated in large movable container
Inventor: GRAEBER RAINER
IPC: B65G1/04
Filed: 1990-03-26
Abstract: The store for small containers has a rack system, located in one or more rows, and a driven storage/retrieval system, to deposit a container (12) in a defined place in the rack system. The store, together with rack system (6) and retrieval system (15), is integrated in a large container (14), suitable for transportation. The storage/retrieval system consists of a conveyor, passing along the rack system, and driven by motor, alternating in two directions. ADVANTAGE - Can be used in any required location.
Patent DE-4012007-A1 (DE)
Title: Reductive de-hydrohalogenation of hydrocarbon(s) or ether(s)
Inventor: STUEWE ARND DR
IPC: C07C41/24
Filed: 1990-04-13
Abstract: Process for the reductive dehydrohalogenation of linear or branched, open-chain or cyclic alkanes or alkenes, aromatic or araliphatic hydrocarbons, or aliphatic or cyclic ethers contg. one or more halogen atoms (I) comprises reaction of (I) with hydrogen in the gas phase at 200-700 deg C in the presence of active C, with formation of HHal. Pref. (I) are olefinic mono-halo cpds., vicinal di- or poly-halo-alkanes (esp. 1,2-dichloropropane (DCP)), vicinal di- or poly-halo- cycloalkanes and/or dihalo-dialkyl ethers; reaction is carried out at 0.5-10 (pref. 0.8-3, esp. pref. about 1) bar; the HHal produced is removed by absorption in water, and unreacted (I) or any halogenated hydrocarbons formed as intermediates are sepd. from the HHal-free prod. stream by distn. and returned to the reaction.
Patent DE-4013128-A1 (DE)
IPC: E03F3/06
Filed: 1990-04-25
Abstract: 2.1. It is known to mill the inner wall of a pipeline in accordance with the cross-sectional contour, the width of the milled region corresponding to the width of the milling head. Owing to the high forces to be applied or the enormous loads acting on the milling head, only a narrow milled region is possible during one milling-head rotation. Thereafter, the milling head rendered inoperative and the entire device is advanced by the milling-head width. Naturally, the interruptions to the actual milling operation are relatively lengthy in this case, so that only a limited output is possible. In contrast, with the novel method the output should be increased. 2.2. For this purpose, provision is made to cut in one rotation a plurality of adjacent grooves, to shear off the intermediate webs produced and to carry away the resulting waste. A device for carrying out the method is so designed that the milling head (1) has a plurality of adjacent teeth rows arranged at a distance from one another, that furthermore a cutting edge (2) pressed against the cross-sectional contour of the milled inner wall is provided, said cutting edge being fixed on a shield shell (3) extending over the periphery of the inner wall. Furthermore, the shield shell (3) is connected to an advancing device which can be clamped alternately, in cooperation with the shield shell (3), in the pipeline (4). To carry away the waste, a conveying device (6) is finally provided on the side of the shield shell (3) facing the bottom of the pipeline. 2.3. The method now permits a wider range of applications of the milling head, the subsequent advancing of the device or of the shield shell (3) effecting the shearing off of the intermediate webs produced. A considerable increase in output can be achieved by the method. <IMAGE>
Patent DE-4014645-A1 (DE)
Title: Extinguishing agent for non-self-igniting chloro-silane(s) - comprises inert gas contg. at least 1 per cent alkane, up to a limit determined by flammability of mixt.
Inventor: PORTZ HENRY DR ING
IPC: A62D1/02
Filed: 1990-05-08
Abstract: Extinguishing and inerting agent (I) for extinguishing chlorosilanes (II) which do not undergo spontaneous ignition consists of inert gas(es) contg. at least 1% methane, ethane, propane, cyclopropane, n-pentane, iso-pentane, n-hexane, iso-hexane or a mixt. thereof, the upper limit of the amt. of alkane (III) being determined by the flammability of the mixt. USE/ADVANTAGE - The invention provides a cheap, halon-free fire extinguishing agent for chlorosilanes which are difficult to extinguish, the concn. of (I) required to extinguish burning (II) (esp. HSiCl3) is so low that it can be used outside a closed container (contrast prior-art mixts. based on CO2 or nitrogen and contg. halo-hydrocarbon or certain organosilicon cpds. In an example, a mixt. of (I) and air was passed through a vertical glass tube, in the middle of which was a small cup (dia. 10 mm.) contg. HSiCl3, with a wick to bring the chlorosilane in contact with the gas stream, when the gas concn. was constant, the vapour was ignited electrically and was extinguished again by the gas stream after time T. The concn. of (I) in the gas stream required to produce this effect in the same time was 81% for N2 alone, and 56% for a mixt. of methane andN2 in the vol. ratio 0.06, corresp. results for CO2 and propane/CO2 (ratio 0.05) were 73% and 51%. The max. possible concn. of the above hydrocarbons (vol.% of (I)) below which the mixt. is non-flammable at any dilution in air, was in the range 4-13% in N2 and 6-18% in CO2 (depending on the alkane).
Patent DE-4017847-A1 (DE)
Title: Suspended acoustic ceiling incorporating lighting and ventilation - includes ventilation ducts, heat exchangers and fans for forced air circulation
Inventor: KARL KURT DIPL ING
IPC: E04B9/00
Filed: 1990-06-02
Abstract: The suspended ceiling incorporates ventilation and lighting devices for the work space and is fitted beneath the original ceiling (1) to leave a space for housing ventilation ducts, associated heat exchangers (19) and fans (17) supplying the room air to the latter. Pref., the heat exchangers correspond in length and height to the length and height of the lighting eloements used for the strip lighting (10) alternating with the heat exchangers. ADVANTAGE - Provides better working conditions by reduced air flow and working surface and cross-section.
Patent DE-4020934-A1 (DE)
Inventor: OETTINGER ROLF
IPC: F16K31/06
Filed: 1990-06-30
Abstract: The proposal is for an electronic control system for magnetic valves which are operated individually or in cascade which is automatically switched over from solo or cascade operation by means of a changeover logic. The changeover logic recognises the presence of an actual value signal from a main valve of a valve cascade so that in this case the electronic control system is automatically set to cascade operation. If there is no actual value of the main valve, a cable breakage is recognised and the final stage is locked. At -14 volts at the main stage actual value input, the electronic control system is set to the solo operation of a magnetic valve.
Patent DE-4030391-A1 (DE)
Title: Air-tight seal for storage container -  is formed by two discs with C=shaped sealing ring fitted between them
Inventor: THOENE HERMANN
IPC: A47G19/32
Filed: 1990-09-26
Abstract: The airtight seal for a storage container, is formed from two discs (1) and a sealing ring (9). Each disc has a raised edge in which a circumferential groove is formed. The sealing ring (9) has a C shaped cross sectoin with two lips (15) which fit in the circumferential grooves of the disc. Each disc has a central square hole to receive a bolt with a square neck. A wing nut engages the bolt thread and presses the two discs together causing the ring to bulge radially outwards and form a seal with the inside surface of the container (14). USE/ADVANTAGE - Cover which forms an airtight seal with containers of different sizes.
Patent DE-4030848-A1 (DE)
Title: Machine for cutting meat -  consists of tray with spring steel clamps equipped with dampers to hold cutlet
Inventor: REIFENHAEUSER UWE
IPC: B23D47/04
Filed: 1990-09-29
Abstract: The cutter cuts chops and cutlets into vertical slices. It consists of a trough like container with spring steel clamps (4,6) fixed laterally to the front (4) and rear (5) sides respectively of the trough. The clamps press against the sides of the cutlet (2) to hold it firm, and are equipped with a damper (7) at their free ends. The damper consists of a plastic block in a sleeve attached to the clamp and on the other side of the block is a spring loaded activator. USE/ADVANTAGE - The cutlet is completely stabilised so that the cuts are made parallel to each other with a constant thickness of slice.
Patent DE-4032765-A1 (DE)
Title: Stroke limiting system for hydraulic cylinder-piston unit -  has arrangement for engaging and disengaging projection in recess
Inventor: ABELS THEODOR DIPL ING
IPC: B66F9/22
Filed: 1990-10-16
Abstract: Cylinder-piston unit with a device to limit the stroke of the piston in which the device has an axial projection (7a) which can fit into an axial recess in the cylinder liner (4a). By rotating the piston (5) about the central axis of the unit the recess can be brought into and out of engagement with the projection, and when out of engagement a stroke-limiting stop is formed. ADVANTAGE - Rapid and simple method of adjusting the piston stroke in a hydraulic cylinder.
Patent DE-4034227-A1 (DE)
Title: Deposited sediment preparation in waterway
Inventor: KREYENBERG HEINER DIPL ING
IPC: B03B5/02
Filed: 1990-10-27
Abstract: Material dredged from the bed of a canal, river etc is delivered to a sieve (2) which removes the larger stones and deposits them on the pile (10) for subsequent crushing. The finer particles are delivered to a cleaning machine (4) which removes lumps of clay and similar material.     The slurry, produced by the cleaning process, is delivered to a container (6) from which it is pumped to a washing drum (9). The material passes through several such washing and cleaning steps to produce clean gravel in graded sizes.
Patent DE-4038410-A1 (DE)
Title: Extraction of baker's wares, partic. waffles from baking-tool - using extractor consisting of tapered parallel bars with cutting ends in grooves in tool to lift, retract and drop waffle
Inventor: GROSSMANN DIETER
IPC: A21B3/07
Filed: 1990-12-01
Abstract: Appts. is described for withdrawing waffle-like bakers wares from a forming tool. The device comprises an extractor grid formed from wedge shaped bars whose free ends taper to a cutting edge. A power unit pushes the grid bars into the side of an open forming tool contg. the waffles and the cutting edges run along grooves between raised areas of the tool. Waffles are thus loosened and lifted from the tool base. Following retraction of the grid bars they are lowered again below the level of a series of bars forming a transfer grid. Waffles are therefore located on the transfer grid. USE/ADVANTAGE - The relatively inexpensive appts. is used to lift deep-profiled waffle-like bakers wares from a tool and transfer them to a conveyor without damage.
Patent DE-4038525-A1 (DE)
Inventor: VITZTHUM OTTO G DR
IPC: A23F5/18
Filed: 1990-12-03
Abstract: The invention relates to a process for preparing soluble coffee in which, to eliminate off-flavour substances, one or more extracts occurring during the aqueous extraction of roast coffee are extracted fully or partly at a temperature of approximately 20 to 120  DEG C and a pressure of approximately 60 to 400 bar with supercritical or liquid CO2.
Patent DE-4038892-A1 (DE)
Title: Measuring and/or working jaw models - using measuring probe or instrument movable along model by coordinate table for dentistry or orthopaedic work
Inventor: GEIS BERNHARD DR
IPC: A61C13/38
Filed: 1990-12-06
Abstract: The jar model is mounted on a carrier plate and is probed by a rod movable in parallel and/or vertically. The upper and/or lower jaw model is orientated in its length centre axis (46) on the base support (37). The latter is inserted in a holding shoe (35,36) of a work-top (2). A measuring probe or instrument is movable along a height-adjustable guide rod (17). The relative length movability (X-axis), the transverse movability (Y-axis) and the height movability (Z-axis) of the probe or instrument are ascertained by assigned digital or other type of measuring device (22,23). The guide rod can be electrically or pneumatically driven. USE/ADVANTAGE - Utmost precision of tooth geometry in three-dimensions.
Patent DE-4102470-A1 (DE)
Title: Equipment accommodating used stackable plastics cups
Inventor: MANKE WOLFGANG
IPC: B65F1/14
Filed: 1991-01-28
Abstract: The container has parallel tubes of slightly larger cross-section than the largest portions of the cups, connected to openings in an end plate, and forming a unit suitable for insertion in a refuse bin. The tubes (1) are of flexible material, or formed by a honeycomb insert or oblong curved strips (10, being inserted in undercut recesses in opeinings in intermediate plates (3") and top and bottom end plates (3,3').
Patent DE-4108293-A1 (DE)
Title: Coordinated controller for servomotors - uses gain valves stored in ROM table for improved performance
Inventor: NIIMI YOSHIHIRO
IPC: G05B19/18
Filed: 1991-03-14
Abstract: The coordinate table control has servomotors (Mx, y, z) with coupled position encoders (E) and tachogenerators (TG). The piston command generator (1A) provides an input to an interpolator (3) that generates command pulses to a distrbutor (5) issuing inputs to velocity control stages (7x, y, z). The outputs of the control stages are multiplexed (11) through to the drive stages (13x, y, z). The control loop gains are set dependent upon the difference between current and target positions for each axis. The gain setting is fixed by information contained within a RAM memory (32). ADVANTAGE - Improved axis coordination using look up gain values.