baber/WOPTO huggingface dataset:
Patent DE-3906065-A1 (DE)
Title: Method of stripping a landfill site
Inventor: KOEHLER KLAUS FRIEDRICH DR ING
IPC: B09B3/00
Filed: 1989-02-27
Abstract: In the method presented, to strip a landfill site, in particular for recovering toxic or explosive deposits in the landfill site, the landfill-site area to be extracted is provided with a cover layer which serves as a protective layer against the dangerous deposits in the landfill site and which is subdivided into adjoining sections. During each section-by-section extracting operation on the landfill site, an extracting container is used which is arranged above the respective section and from which all extracting work and feed work of materials is carried out. During each extracting operation, a trench is cleared under the exposed section. The trench is subsequently lined with plastic and closed again. The extracting container is then moved to the next section, where an extracting operation is again carried out. Thus the entire area of the landfill site can be extracted section by section in a first extracting plane and in the same manner in deeper-seated and following extracting planes.
Patent DE-3923339-A1 (DE)
Inventor: STERN ANNE DIPL BIOL DR RER NA
IPC: C07H21/04
Filed: 1989-07-14
Abstract: The tissue plasminogen activator (t-PA) derivative is not glycosylated and has the following amino-acid sequence: <IMAGE>
Patent DE-3927783-A1 (DE)
Title: Planetary gear with two sections and two sections an three shafts - has hydrostatic pump and motor, with transformer with drive and driven shafts
Inventor: INGELHEIM GRAF VON
IPC: F16H47/04
Filed: 1989-08-23
Abstract: The planetary gear consists of two parts with three shafts. One shaft (W3) is connected to a hydrostatic pump (H1) leading to a hydrostatic motor (H2) connected to one of the two other shafts (W1,W2). The transformer's drive shaft and driven shaft can be coupled separately by means of couplings with the drive shaft of a multi-stage gearing. USE/ADVANTAGE - The hydrostatic mechanical torque converter has three free shafts with rotational figures (n1,n2,n3) according to the equation n1-n2-i0.n3=0.
Patent DE-3929632-A1 (DE)
Title: Ferritic steel for use as baking trays - has good corrosion resistance against alkali and alkali-salt material
Inventor: GRAU FERDINAND
IPC: A21B3/15
Filed: 1989-09-06
Abstract: Ferritic corrosion-resistant steel comprises in wt. % 0.02C, 0.5 Si, 0.5-1.5 Mn, 0.04 P, 0.02 S, 10.5-12.5 Cr, 0.3-1.0 Ni, 0.03 N, balance Fe. USE/ADVANTAGE - As baking trays for alkali baking and baking with sugar-contg. fillings and/or icing. The residue from baking can be easily removed from the trays and the steel has good resistance to corrosion from alkali and a alkali satd. mixts. at high baking temp.
Patent DE-3929799-A1 (DE)
Inventor: LICHTMANNEGGER ERNST
IPC: B62J6/20
Filed: 1989-09-07
Abstract: The spoke-mounted reflector contains a first reflector element which is attached to spokes, with suitable attachment means, essentially parallel to the plane of the spokes and a second reflector element which is attached to the first reflector element in such a way that it extends from a reflector face of the first reflector element laterally with respect to the left-hand side of the bicycle. The second reflector element consists, on at least one reflector side, of at least two reflector face sections, which extend at an angle to one another, in such a way that the face section bordering the reflector face of the first reflector element encloses an angle > 90 DEG  with said face. As a result, the visibility of the bicycle in traffic in dark conditions is considerably increased. <IMAGE>
Patent DE-3941894-A1 (DE)
Title: Organic fume pollutants collection - by washing gas from refuse incinerators then removing pollutants by using adsorbent e.g. active coke
Inventor: KOESER HEINZ DR ING
IPC: B01D53/70
Filed: 1989-12-19
Abstract: Harmful organic cpds, esp polyhalogenated aromatic cpds as found in exhaust gas from refuse incinerators, are removed by washing gas with circulated liq, from which the dissolved pollutants are then adsorbed. Suitable adsorbents eg active coke, other cokes and  silicates like Kieselguhr may be finally dispersed in the washing liq or held in a bed incorporated in the circulation.  Activated carbon may be used as a pre-coat filter. When process includes treatment of inorganic composites, the organic cpd adsorbent may be dispersed in the washing liq for inorganic cpds eg SO2 which also contain sulphate forming additives. Sulphates eg gypsum are removed using density differences or differential wetting properties as deciding factor. ADVANTAGE - Process is simple and cheap.
Patent DE-4001578-A1 (DE)
Title: Dishwasher with water softener - comprising cation and anion exchangers acting during final rinse but only anion exchanger acts during preliminary wash
Inventor: STAMMINGER RAINER DIPL PHYS DR
IPC: A47L15/42
Filed: 1990-01-20
Abstract: The dish-washing machine has a water softener that contains both a cation exchanger and an anion exchanger.  Only a part of the water passes over the anion exchanger and this part is the part need for one complete rinsing comprising at least one prelimininary wash and/or clean, rinse and dry.  The water for the last rinse is passed over both exchangers. The anion exchanger is lcoated downstream of the cation exchanger. The two exchangers are located in a shared container that has a connection pipe at the transition from oen exchanger to the other. That section of the container holding the anion exchanger has a by-pass line with a stop valve. ADVANTAGE - Avoids nitrate deposits on dried dishes.
Patent DE-4002042-A1 (DE)
Title: Power supply unit esp. DC supply unit - with converts DC input to HF power which is converted to several DC voltage outputs
Inventor: KURIYAMA SHIGEMI
IPC: H02M3/28
Filed: 1990-01-24
Abstract: The voltage maintaining circuit (12,6-9,14) carries out a feedback to the circuit (2,3) using the several DC voltages, so that the switching frequency and the key relationship of the circuit (2,3) are controllable in such a way that the voltage of one of the several output DC voltages is kept constant. An hysteresis element (15) alters the amount of feedback according to a load : current effecting the DC voltage output used, so that the voltage alteration effecting an alteration of the load current contains a predetermined hysteresis. The circuit (2.3) has a switching element (3) and a control circuit (2) for controlling the switching operation of the switching element (3).
Patent DE-4002259-A1 (DE)
Title: Threaded nut incorporating antenna for wireless security monitoring - has radio or ultrasonic alarm signal transmitter triggered by loss of contact on loosening of nut
Inventor: VETTERKIND DIETER W DR ING
IPC: G08B13/14
Filed: 1990-01-26
Abstract: A miniature radio transmitter (3) with a programmable encoder (14) is built into the nut, whose body (4a) itself constitutes the antenna radiating an alarm signal when an electric pressure contact (1) or torque sensor (2) responds to loosening of the nut. Metallic foil (6), wire (7) or film is embedded in the plastic sheath (5) of the nut to complete the antenna circuit. Power is supplied by a miniature rechargeable battery (12) or photovoltaic cell (13) and control unit (15). ADVANTAGE - Alarm signal is transmitted automatically as soon as nut is loose enough for contact to be broken.
Patent DE-4002299-A1 (DE)
Title: Dry spinning polyacrylonitrile fibres from di:methyl:acetamide soln. - uses high throughput process for spinning into superheated steam
Inventor: REINEHR ULRICH DIPL CHEM DR
IPC: D01F6/18
Filed: 1990-01-26
Abstract: Dry spinning of polyacrylonitrile fibres from dimethylacetamide solution into steam is carried out at improved throughputs of at least 20 kg/hours per spinning chimney from spinnerets with a large number of holes. Fault rates are below 10/100,000 filaments and the dimethylacetamide content is less than 30 wt.% and pref.  less than 20%. Conditions are: a) the hole density of the annular spinnerets is 10.5 holes/cm2 of spinneret surface; b) at least 225 deg. C, pref. at least 240 deg. C; d) the specific energy consumption is at least 0.09 kWh/m2 of heating surface/kg of polyacrylonitrile; e) the superheated steam has a temp. of at least 400 deg. C and is virtually free of water droplets f) the quantity of superheated steam is at least 40 kg/hours with cross flow and at least 40 kg/hour with parallel flow; g) a spin finish consisting pref. of water or an oil-water emulsion is applied within the spinning chimney; h) the min. moisture content is greater than 10 wt.% and is applied at convergence; i) the temp. of the filaments measured at the chimney exit is below 135 deg. C, pref. below 130 deg. C. ADVANTAGE - Conditions give a high throughput and the absence of oxygen permits high temps. while avoiding the dangers of high fault rates, discolouration and self-ignition.
Patent DE-4003591-A1 (DE)
Inventor: SPINDLER JOERG
IPC: G01N35/10
Filed: 1990-02-07
Abstract: The multi-channel pipette described has a very large number, in particular ninety-six, parallel pump cylinders with fitting plungers (20). The pump cylinders are designed as apertures (18) in a cylinder block (14). The plungers (20) are mounted in an array corresponding to the disposition of the apertures (18), in particular an 8x12 array, preferably with a degree of play about the vertical, on a plate (16) which can be raised and lowered along guide-bars parallel to the longitudinal axes of the cylinders.
Patent DE-4006307-A1 (DE)
Title: Water sol. scouring powder - contg. powder or fine particles of water sol. inorganic cpd.
Inventor: SUGINAMI SHOJI
IPC: B24B37/00
Filed: 1990-02-28
Abstract: A water-sol. scouring powder for scouring and cleaning agents contains as active component a powder or fine particles of an inorganic cpd. with water solubility 0.1-80 g/100 of water at 25 deg.C. USE/ADVANTAGE - The material does not accumulate in, or contaminate, the drains. Such compsns. can be used to remove adherent films of oils and fats from industrial, cooking or medical appliances.
Patent DE-4010167-A1 (DE)
Title: Internal can-coating material - contains carboxyl gp.-contg. polyester, phenolic resin, thermoplastic resin, epoxy] resin, aminoplastic resin and solvent
Inventor: KLIER KONRAD DR
IPC: B05D7/16
Filed: 1990-03-30
Abstract: Process for coating the inside of metal containers (I) comprises applying and stoving a coating material (II) contg. (A) 10-30wt.% COOH gp.-contg. polyester(s), (B) 7-22wt.% phenolic resin(s), (C) 4-27wt.% thermoplastic resin(s), (D) 0-7wt.% epoxy resin(s), (E) 0-6wt.% aminoplastic resin(s) and (F) 30-70wt.% organic solvent(s). More specifically, amts. are 15-25wt.% (A), 10-15wt.% (B), 13-23wt.% (C), 0.5-3wt.% (D), 0.5-4wt.% (E) and 30-61wt.% (F); (A) has Mn 500-5000 and acid number 10-150mg KOH/g, and (B) has Mn 300-600 and OH number 80-400mg KOH/g; (C) has Tg above room temp., pref. 30-200 deg.C, mean particle size up to 1000nm, pref. up to 500nm, and pref. contains at least 1 (pref. at least 2) Oh or COOH gps./mol.; (D) has Mn 300-10,000; (II) is applied to the metal in the form of sheet and then stoved, and the coated sheet is processed into containers.
Patent DE-4014888-A1 (DE)
Inventor: STOLZ GERHARD
IPC: H02M3/335
Filed: 1990-05-09
Abstract: A DC converter having an electronic switch, which can be controlled to conduct by switch-on pulses, and having current limiting by reducing the duty cycle or suppressing control pulses. The duration of the control pulses is measured to facilitate a transition to suppression of control pulses without increasing the current limiting value. The converter is particularly suitable for supplying load resistors in which there is a risk of a low-resistance short-circuit.   <IMAGE>
Patent DE-4014892-A1 (DE)
Title: Bituminous concrete mix. with dispersed wire reinforcement - prepd. by adding wire in bundles held together by binder which disintegrates in hot bitumen
Inventor: NEMEGEER DIRK
IPC: B28C5/40
Filed: 1990-05-09
Abstract: A castable hot bituminous concrete mixt. contains a uniform dispersion of steel wire pieces for reinforcement. These are introduced in the form of bundles held together by a binder which loses its binding ability upon introduction with water when added to wet cementitious concrete, and which also melts or softens on contact with the hot bitumen mixt. In consequence the bundles disintegrate during mixing. Pref. the bituminous mixt. is prepd. by mixing at a temp. which is in the range 80-200 deg.C and 30 to 50 deg.C above the softening point of the binder.
Patent DE-4018283-A1 (DE)
Title: Clamp for sail of sailboard - consists of cable wound around roller which is rotated by handle
Inventor: SIZMANN RICHARD DR
IPC: B63B35/79
Filed: 1990-06-07
Abstract: The clamping and trimming assembly for the sail of a sailboard. The cable (5) attached to the sail passes through a hole (11) in the apex of the boom (1). The hole runs into a slot in which a roller is fitted. This roller (2) is mounted on a shaft (3) which can be rotated by means of a handle (4). The cable passes around the roller and then through a narrow slot with ribs projecting inwards which grip the cable, when the sail has been trimmed. Alternatively, the roller may be wide enough to receive two turns of the cable and thus maintain the cable tension.
Patent DE-4022188-A1 (DE)
Inventor: REBHAN DIETER ING GRAD
IPC: B29D30/00
Filed: 1990-07-12
Abstract: The invention relates to a tyre-holding device. It is proposed to arrange inflatable bellows (1) axially with respect to the tyre (4), which bellows bear against the tyre beads (6) in the inflated state. The bellows (1) are preferably fastened on a drum-shaped restraint (2).
Patent DE-4036444-A1 (DE)
Inventor: GEIGER PETER
IPC: E01C9/00
Filed: 1990-11-15
Abstract: In a slab-shaped paving element having a smooth middle section and tab-shaped attachments extending transversely to the plane of the middle section at the lateral edges of the middle section, provision is made, in order to permit different laying distances and forms of laying, for the lateral surfaces (3) each to have two attachments (4', 4'') side by side but at a distance apart, of which, in each case, one attachment (4') is arranged at diagonal corner regions (5) of adjoining lateral surfaces (3), and for the other attachment (4'') in each case of each lateral surface (3) to be formed with diagonal corner regions (6) in the lateral surfaces (3) at a distance from the other two. <IMAGE>
Patent DE-4041015-A1 (DE)
Title: Compact sorter for sheets from photocopier - has positioning arrangement enabling stack to be stapled in correct number side sequence
Inventor: CHUNG JAE HEON
IPC: B65H39/11
Filed: 1990-12-20
Abstract: The copier has several storing trays for photocopy sheets arranged singly in sequence w.r.t. the ejector unit in a loading position to receive the sheets by means of a positioning arrangement conveying them from a first stand-by position to a second via a loading position. By each positioning of the ejector unit (5) in the loading position (P) through the positioning arrangement (1,2), the separate storing tray (3) is movable in the vertical direction and simultan-eously horizontal to the ejector unit. The storing tray can be fixed in the loading position for a predetermined time interval. ADVANTAGE - More accurate and reliable reception of sheets in order.
Patent DE-4109291-A1 (DE)
Title: Durable seal for manhole cover of e.g. kettle - has PTFE chamber section sideways, open on its outer side,  and filled with ring between combined steel and resilient material rings
Inventor: BAJOHR EMIL
IPC: F16J15/06
Filed: 1991-03-21
Abstract: The opening in a (e.g.) kettle for use as a manhole, or for introducing fittings or simply for filling the kettle, and which is closed off with a lid, has a protective seal made of plastic material in a U-shape with a sealing covering which is open on the radially outer side; the two sides of the U-section are joined by a radially inner part and they provide sealing faces on the kettle and lid sides; they also have a spacer between them; devices for fixing the seal on the kettle side engage this spacer. The sealing covering is pref. PTFE; the structure of the seal also preferably contains compressed cellulose with inorganic fillers and elastomer binder. The seal for a manhole in the example shown has the two sides (6,7) of its U-section joined by the radially inner part (5), so that the U is open on the outside. The lower side (6) is pressed against the flange of the manhole, the top side (7) is closed against the sealing face fo the kettle lid. The space between the sides (6,7) is filled with a ring or boiler place spacer (8) which, however, leaves intermediate spaces (9) where flat sealing rings are inserted, together with stainless steel shaft rings (10). The sealing rings (9) are made of resilient material so as to take up any unevennesses in the faces of the flange and lid, and also to protect the sides (6,7) from mechanical damage. ADVANTAGE - The seal is inexpensive. It is fitted and removed simply and quickly. It provides a reliable and durable seal even when the kettle has been opened and closed many times.
Patent DE-4109863-A1 (DE)
Title: Connector for termination of screened conductors - uses conducting plastic material to connect individual screens at end of housing
Inventor: KIRMA SAFA
IPC: H01R13/658
Filed: 1991-03-26
Abstract: The screened conductors (1) are all brought into a housing (5) with an extension (7) held on a cap (13). The extension is filled with a conducting plastic material (e.g. a plastic dough with embedded metal particles) which is in electrical connection with the individual conductor screens. USE/ADVANTAGE - As electronic equipment plug. Space saving.
Patent DE-4109964-A1 (DE)
Title: Vibration absorber for chimney - consists of ball rolling on concave floor of housing containing liquid
Inventor: TRAETNER ARNULF DR ING
IPC: F16F7/10
Filed: 1991-03-22
Abstract: The vibration absorber for reducing the wind excited vibrations of structures, such as chimneys or observation towers. The vibration absorber consists of a cylindrical housing (1) which is partly filled with a damping liquid. The floor of this housing is covered by a replaceable plate with a concave upper surface. A ball (2) is placed on this concave surface and is surrounded by a damping ring (7). The concave surface of the plate (3) is defined by a circular or cycloidal arc. Several such absorbers with different masses and frequencies may be attached to a structure. USE - Absorption of structure vibrations.
Patent DE-4116389-A1 (DE)
Title: Drive for tractor with stepless chain converter - includes bridging coupling to maintain power during gear changes
Inventor: REISCH JOHANN
IPC: F16H37/02
Filed: 1991-05-18
Abstract: The drive system is for a vehicle, esp. a tractor. It has a stepless chain converter (4) and a selection lever in which the input side of the converter is connectable with the take-off shaft (24) of the group drive (5) by means of a bridging coupling (33) and a drive connection. The converter (4) and the switching coupling (17) of the group drive are so bridged that on their adjustment and disengagement the force flow to the drive wheels (7) is correctly maintained via the bridging coupling (33). USE/ADVANTAGE - Tractor drive system which ensures that tractive effort is not lost during gear change operations.
Patent DE-4117418-A1 (DE)
Title: Sliver transport from can to drawing unit at spinning station - has continuous belt with final belt deflection roller as part of drawing unit feed roller pair
Inventor: STAHLECKER FRITZ
IPC: D01H5/00
Filed: 1991-05-28
Abstract: The sliver material is carried from the cans to each drawing unit at each spinning station by a continuous belt above each can. The belt passes round a deflection roller near the drawing unit which, together with another roller forms the paired feed rollers to the drawing unit. The rotary speed of the feed roller pair is slower than the surface speed of the following pairs of rollers in the drawing unit. The deflection roller for the continuous belt has a larger dia. than the other roller of the pair and has a direct drive, while the other roller is a pressure roller. The pressure roller has adjustment towards the belt deflection roller. Alternatively, the pressure roller is powered by a roller along the length of the assembly and the belt deflection roller is part of the pressure carrier at the drawing unit. A three-cylinder drawing unit is after the deflection roller and pressure roller pair or the drawing unit is a double cylinder system. The level of the continuous belt which carries the sliver is covered by sliding runners. ADVANTAGE - The system gives a simple sliver supply and delivery operation, and gives a defined ratio in the transfer of the sliver to the drawing units.
Patent DE-4119577-A1 (DE)
Title: New bis(3-cyano-3,5,5-trimethyl-cyclohexylidene)-azine
Inventor: HUTHMACHER KLAUS DR
IPC: C07C209/30
Filed: 1991-06-14
Abstract: The new cpd. is obtd. by reaction of 1,3,3-trimethyl-5-oxo-cyclohexanecarbonitrile (IPN) with a source of hydraxine (Hz) in a solvent of a low alcohol or ether at a mole ratio of Hz:IPN 1:2 min. to give IPN-azine. The latter is then hydrogenated in a solvent under pressure in presence of liq. NH3 at a temp. of 5-150 deg.C. using a catalyst and if necessary a cocatalyst. The catalyst is chosen from (a) a Co or Ni contg. Raney catalyst and a cocatalyst chosen from the series of salts of the elements Al, Co, Ni, La, Y, Ce, Ru, Rh, Pd, Ir and Pt, or carrier based elements chosen from Ru, Pd, or Pt, or (b) carrier based Ru, Pd, or Pt catalysts at 3-30 MPa of H2 and 50-150 deg.C.
Patent DE-4120061-A1 (DE)
Title: Conversion of industrial and domestic waste into useful prods. - by dry pyrolytic distn. to give molten slag residue, conversion into a high temp. melt using energy from the pyrolysis gas and conversion by casting, spinning, etc. into useful non-toxic, ceramic-like prods.
Inventor: KISS GUENTER H
IPC: C10B53/00
Filed: 1991-06-18
Abstract: Complete conversion of unsorted waste material of all types contg. a variety of toxic components, such as industrial waste, specialist waste, domestic refuse and industrial scrap is claimed in which the whole of the solid residual material resulting from thermal decomposition of the material to be disposed of is discharged in molten liq. form at temps. of ca. 1300 deg. C and opt. granulated in a water bath. The discharged molten liq. residual material obtd. by thermal dry distn. is well mixed and, opt. after sepn. of at least part of the metallic components, converted into a 2nd high temp. melt which eliminates the non-homogeneous structures and elutible residues, using the energy of the gases recovered during the degassing. Completely inert high value industrial prods. in semi-finished or final form are recovered from the melt with large part of their inherent energy. USE/ADVANTAGE - The homogenised high temp. melt may be collected and its inherent energy utilised for converting the molten material into useful prods. e.g, by casting, spinning, moulding, etc., to give materials useful in building, roadmaking, as cement additives, etc., and fibres and rockwool-like prods. useful as thermal insulation, asbestos substitutes for reinforcment of building panels, etc. The prods. are homogeneous ceramic-like materials contg. no elutible materials and thus cause no environmental pollution or toxicity effects w.r.t man, animals or plan