baber/WOPTO huggingface dataset:
Patent DE-3903079-A1 (DE)
Title: Felling wedge with guide webs arranged on one wedge surface
Inventor: NITSCHMANN KARL
IPC: A01G23/099
Filed: 1989-02-02
Abstract: In a known felling wedge, the guide webs are provided as simple, continuous ribs which essentially guarantee guidance of the felling wedge during driving into a split. In the case of great vertical loading, there is the danger that the guide wedge will be pressed out counter to the driving-in direction. According to the invention, it is envisaged to design the guide web in a toothed manner and to hold it in the basic body of the felling wedge with a fastening section facing away from the toothing. Such a toothed guide web digs into the walls of the split, as a result of which pressing the felling wedge out of the split is reliably avoided. For driving into the sawing split in felling trees, splitting wood and the like.
Patent DE-3903499-A1 (DE)
Title: Tanning agent and method
Inventor: HINLEY JOHN JAMES
IPC: C14C3/04
Filed: 1989-02-06
Abstract: A leather tanning agent for use as sole tannage or with others includes Al(III) ions, Ti(IV) ions and an organic sequestrant in stated ratios. The ratio of Ti:Al, expressed as metal oxides TiO2:Al2O3, based on the weight, is between 0.6:1 and 2:1 and the amount of sequestrant is between 0.1 and 0.4 mol per mole of total metal oxides. Preferably SO4 ions are present. Other metal tanning agents such as zirconium salts may be included. The tanning agent is widely used and possesses enhanced stability.
Patent DE-3904623-A1 (DE)
Title: Filter in particular for a vehicle
Inventor: WEISS ANNA-MARIA
IPC: F24F8/183
Filed: 1989-02-16
Abstract: A filter is described, in particular for the purification of the air supplied to a passenger compartment of a vehicle, the filter having a particle filter layer (12) and an absorber filter layer (14) which are arranged one after the other in the direction of air flow. The particle filter layer (12) is arranged flat directly adjacent to the absorber filter layer (14) and, together with this, folded together in a zig-zag shape, that is pleated, in such a way that the pleat sections (18) of the absorber filter layer and the pleat sections (16) of the particle filter layer (12) lie in the direction of air flow (26) and mesh together. <IMAGE>
Patent DE-3905774-A1 (DE)
Title: Process for producing (vulcanising) articles of rubber or with rubber, here specifically rubber moulds, characterised by certain operations
Inventor: LADWIG MANFRED
IPC: B29C43/02
Filed: 1989-02-24
Abstract: Process for producing (vulcanising) articles of rubber or with rubber, here specifically rubber moulds. Rubber moulds are required in the jewellery industry, but not only there. For the production of wax parts (rings, brooches of wax). Rubber moulds have previously been produced with the aid of a vulcanising press (press with 2 electrically heated pressing plates) and a vulcanising mould. The vulcanising presses are expensive and dependent on electric power. The novel process is just as efficient as the known process. The procurement costs are much lower, particularly if it is wished to produce more than one rubber mould simultaneously. The devices which are required for this process are of a simple construction. The process is not dependent on electric power. Cheaper energy sources, for example natural gas or propane gas (gas oven) can be used for vulcanising the rubber moulds. The process is a particularly energy-saving process if a number of moulds are vulcanised simultaneously in an oven. The known vulcanising moulds are also used in this process.
Patent DE-3908469-A1 (DE)
Title: Cassette recorder
Inventor: HAYASHI HIDEKI
IPC: G11B15/44
Filed: 1989-03-15
Abstract: The invention specifies a cassette recorder in which a switching part, which has a cam part whose respective parts are assigned to the respective operating mode positions, is moved by means of a driving wheel, driven by a motor, the switching part moving a head plate and a loading-ejecting device, the respective operating mode positions being sensed furthermore with the aid of the cam part.
Patent DE-3910010-A1 (DE)
Title: Vacuum disconnecting switch
Inventor: OUCHI SHIGETOSHI
IPC: H01H33/28
Filed: 1989-03-28
Abstract: The fixed electrode and the movable electrode (6, 7) of a vacuum disconnecting switch are arranged in a vacuum vessel (3) and are connected to a fixed and a movable bar (8, 9), respectively which extend outwards out of the vacuum vessel (3). In the region of the fixed electrode (6), the vacuum vessel (3) is externally surrounded by an electromagnetic repulsion winding (17) and a short-circuiting ring (16) which is coupled to the movable bar (9). An electromagnetic repulsion force produced between the short-circuiting ring (16) and the repulsion winding (17) is used for driving the movable bar (9) in such a way that the electrodes (6, 7) are disconnected. The magnetic flux generated in this case in the short-circuiting ring (16) produces a magnetic field which is parallel to the arc and opposes movement of the arc away from the electrodes (6, 7). <IMAGE>
Patent DE-3910037-A1 (DE)
Title: Electrochemical cell for use as oxygen sensor - uses an alkaline medium with opposite reactions to ensure cell-conditions remain constant
Inventor: DOBOS KAROLY DR
IPC: G01N27/49
Filed: 1989-03-28
Abstract: The oxygen sensor, based on an electrochemical cell with 2,3 or more electrodes, and pref. a water based electrolyte, features oxygen reduction at the measurement electrode which passes the ions into solution and oxidation of ions to oxygen which is passed out of the cell. The measurement electrode pref. consists of Pt, Au, Ag or other nobel metal or noble metal alloys or of Cd/Cd-oxide, Ag/Ag-oxide, Hg/Hg-oxide, Ni-oxide, Mn-oxide (both at a defined discharge level) or Pb/Pb-oxide. Both the counter electrode and the reference electrode may also consist of any of these constituents. The cell has a filler opening allowing electrolyte to be added. The oxygen pumping action pref. is carried out using up electrolyte. Also claimed is the use of a solid electrolyte, an organic or water-free electrolyte. USE/ADVANTAGE - The cell does not degrade due to contamination with reaction productsm as current sensors do. The reactions which govern its operationm are equations (1) and (2). Adjustment of the electrode potential occurs using a poten and l or m, more reference electrodes.
Patent DE-3912187-A1 (DE)
Title: Chip conveyor
Inventor: STOEHR ALBERT
IPC: B65G43/00
Filed: 1989-04-13
Abstract: The invention relates to a chip conveyor in which, for the overload protection of the drive unit, a torque support, a control switch actuable thereby, a reversing contractor and a time-delay relay are provided, so that in the event of a fault the conveying member is quickly switched to reverse motion.
Patent DE-3922197-A1 (DE)
Title: Self sealing valve, especially non-return valve - consists of piston in tubular housing with compression spring
Inventor: VOSS RICHARD
IPC: F16K15/02
Filed: 1989-07-06
Abstract: The self-sealing valve, consists of a piston (10) which moves in a tubular housing (2). A compression spring (17) presses the piston against a valve-seating (8) in a hole (3) in the housing, against the flow direction. The part of the piston near the sealing surface (11) corresponding to the valve-seating is flexible. The valve cone (12) of the piston (10) is flexible. The piston has a flexible preferably plastic coating (23). USE/ADVANTAGE - Especially non-return valve for pressurised fluids. The valve is completely sealed, even with non -mineral oil hydraulic fluid.
Patent DE-3925798-A1 (DE)
Title: Overheating protection for district heating system - supplies cooling water from pressurised tank to heating network in case of control failure
Inventor: WALTHER KONRAD DIPL ING
IPC: F24D10/00
Filed: 1989-08-04
Abstract: A district heating system has a primary circuit, controlled by valves (1,2) which supplies heat to a secondary circuit through a heat exchanger (3). A heating medium is circulated through the secondary circuit by an e.g. electrically driven pump (5). In the event of an electric, or other energy failure, the pump stops to operate and the valves in the primary circuit remain open.  To prevent overheating of the system, cold water from a pressurised tank (7) flows into the system to lower the temp. until the valves can be closed. ADVANTAGE - Improved protection, preventing steam  generation.
Patent DE-3928725-A1 (DE)
Title: Purifying liq. by vacuum pumping of gas - into drying and absorbent filters via multi-way valve
Inventor: FREIMUTH FRIEDRICH
IPC: B01D53/34
Filed: 1989-08-30
Abstract: Gas contg. materials with an undesirable odour are sucked from the space above the liq. in a container by a vacuum pump connected to a multi-way valve. After passing through a filter with layers of saw-dust and/or peat to remove moisture, the gas is transferred to a filter with material for smell-absorpotion, e.g. active carbon and/or molecular sieves. The transfer means may respond to pressure measurements in the container. Cooling for the vacuum pump is provided by collected condensate drawn e.g. through bores in one ore more filters made of sintered metal, esp. Cu. The container normally receiving contaminated liq. can be periodically flushed. USE - For process gases contg. enviromentally undesirable materials and contained in liq.
Patent DE-3930990-A1 (DE)
Title: Roofing sheets placing machine - runs on wheels on roof girders and has pick=up device for corrugated sheets
Inventor: LEININGER FRANZ
IPC: E04D15/04
Filed: 1989-09-16
Abstract: The independent free standing lifting and placing machine is used to place roofing sheets with trapezoidal corrugations onto the rafters of a steel or concrete framed building. The machine may be powered either by an electric motor or hydraulically operated and dispenses with the use of expensive craneage and unsafe working practices. The main vertical support arm (7) is attached to a counterweight and placed inside the building area. Part of the counterweight can be the power unit motor or generator. The lifting and placing attachment (5) is attached to the main vertical support arm (7) with a swivel and slew bearing arrangement. An electro-magnet or vacuum suction cup assembly (10) is at the end of the installation arm (9). The lifting and placing attachment performs a traverse movement (12) using running wheels (13) powered by the motor unit and is attached to a frame arm (6) with a guide wheel mechanism (14) to ensure correct location on the roof truss component or portal (2). A crane uses the access way (3) and off-loads the roofing sheets onto a stockpile (4). The lifting appliance lifts the sheets from the stockpile and places the sheets to the required position on the roof so that the construction personnel only have to secure the sheets. USE/ADVANTAGE - Industrial and warehouse building with frame construction and safety for site fixing personnel.
Patent DE-3939515-A1 (DE)
Title: New substd. 3-amino-sydnonimine derivs.
Inventor: SCHOENAFINGER KARL DR
IPC: C07D271/04
Filed: 1989-11-30
Abstract: Substd. 3-amino sydnonimine derivs. of formula (I) and their pharmaceutically acceptable acid addn. salts are new.  In (I), A= S or SO2; R1= COR2 or H; R2= 1-4C alkyl, 1-4C alkoxy (1-4X)alkyl, 1-4C alkoxy, 5-7C cycloalkyl, Ph (this last opt.  mono, di or tri-substd. by halogen, 1-4C alkyl and/or 1-4C alkoxy). 3 cpds. (I) are specifically claimed, namely 3-(3,3-dimethyl-tetrahydro -1,4-thiazin-4-yl)-sydnonimine hydrochloride, N-p-arisoyl-3-(3,3-dimethyl tetrahydro-1,4-thiazin-4-yl sydnonimine (and its pharmaceutically acceptable salts, esp.  hydrochloride) and 3-(3,3-dimethyl)-1,4 -tetrahydro-thiazine-1,1 -dioxid-4-yl)sydnonimine hydrochloride (Ia).
Patent DE-3939917-A1 (DE)
Inventor: WINNER HERMANN DIPL PHYS DR
IPC: B60R16/023
Filed: 1989-12-02
Abstract: A device for determining the adhesion between a tyre (13) rolling on a road (15) and the road surface (14) has a plurality of measurement buttons (10) arranged in the tyre sculpture (11) which are associated, by virtue of their geometry, with graduated coefficients of adhesion ( mu button). A sensor unit (16) detects those measurement buttons (10) which slide relative to the road surface (14) as the tyre (12) rolls over it. An evaluation unit (17) determines the measurement buttons (10) associated with the highest coefficients of adhesion ( mu button, max) from the number of sliding measurement buttons (10) and calculates the instantaneous adhesion ( mu R/S) between tyre (12) and road surface (14) from these coefficients of adhesion.
Patent DE-3943311-A1 (DE)
Title: Portable data input terminal - has input panel that allows alpha numeric and analogue graphical signal entries
Inventor: SANO SHIGEAKI
IPC: G06F1/26
Filed: 1989-12-29
Abstract: The portable data input terminal (1) is powered by built in rechargable batteries that receive energy from a separate charge unit (60). Energy transfer is via an inductive coupling (62). The terminal has an acoustic coupler (12), an LCD display, a membrane pushbutton panel (11) and a field for input of hand-written characters. Within the unit is a control circuit that receives the  keyboard data directly and produces coded output. The analogue signals produced by hand-written characters are sampled and digitised before being converted into code. Coded values are entered into a buffer before being processed and corrected. USE/ADVANTAGE - For reading hand-written Japanese Katakana characters. Allows input of analogue graphical data as well as alphanumeric
Patent DE-4003333-A1 (DE)
Title: Holder for silent safe storage of glasses and bottles - is moulded part of resilient material with recesses adapting to different diameters
Inventor: PETZ GUENTHER
IPC: B65D81/107
Filed: 1990-02-05
Abstract: The holder for glasses (1) and bottles is a moulded part (2) of resilient material to take glass stems of different diameters in the same sized recesses. A high grade material such as the form can be used to make the holder. The quality of the material is such that it is shape retaining once the glasses have been removed. It should also be strong so as not to split with constant insertion and removal of the glasses.  The holder should also be made for easy cleaning. USE/ADVANTAGE - Glasses holder is esp. useful for caravans etc. whereby glasses can be held without danger of rattling during movement of the van.
Patent DE-4004918-A1 (DE)
Inventor: AMELUNG-ZIELKE HELMUT
IPC: A47G1/06
Filed: 1990-02-17
Abstract: In a board-shaped publicity support (11), i.e. a device for holding and presenting publicity material in sheet form, e.g. placards, announcements and the like, constituting a device with a back board (12) and a frame (13) of strip sections for the back board (12), on which spring-loaded clamping strips (14) are arranged to swivel to secure the publicity material held by the back board (12), the strip sections forming the frame (13), especially in a model with several sub-divisions like recesses, grooves, channels, slots or the like in the direction of the strips, have guides (134) accessible from at least one outer side of the frame (13) which lie outside the swivelling range of the clamping strip (14) or the components secured to it and can be inserted into the connecting components preferably taking the form of cylindrical rods, brackets or the like, by means of which two or more publicity supports may be joined together.
Patent DE-4007485-A1 (DE)
Title: Lightweight water skis - made of closed-celled high pressure polyethylene foam
Inventor: ONDRASINA JOSEF
IPC: B63B34/56
Filed: 1990-03-09
Abstract: Personal transport equipment for travel on water comprises a pair of skis made of a multi-ply, hygienic foam material which is non-irritating to the skin and which consists of closed-cell expanded high pressure polyethylene. - The skis may be used with ski-sticks (7) of light metal, wood or plastics, pref having closed-celled high pressure polyethylene foam plates (9) joined to their ends by light metal plates. (7pp Dwg.No.1/1)
Patent DE-4008124-A1 (DE)
Inventor: KANO TETSUHIRO
IPC: F21V29/00
Filed: 1990-03-14
Abstract: In a lighting fixture (10) equipped with a cold-light reflector (18), there is provided behind the cold-light reflector (18) a further reflector (32) which reflects infrared radiation onto a housing wall (14) of the lighting fixture (10). <IMAGE>
Patent DE-4019569-A1 (DE)
Title: Sectional gate with hinged sections - has sections guided in running rails at their ends and fitted with sealing lips
Inventor: GUTTMANN HERBERT
IPC: E06B3/48
Filed: 1990-06-20
Abstract: The surface of each long side of each section facing an adjacent section is cylindrical in shape with its central point in the hinge axis. The cylindrical surface (8) is formed as an attachment (6), and the section (1, 1'), connecting to the attachment part has an extending lip (9) which works in conjunction with the cylindrical surface (8) of the attachment part. The extending lip is also formed on a further attachment part.  The cylindrical surface formed as an attachment part (6) has a seal (10) which when the gate is closed locates on the adjacent section (1'). USE - As a sectional gate, with sections connected to each other by hinges.
Patent DE-4021260-A1 (DE)
Title: Grid rotor wind turbine - has control flaps cooperating with rotor openings for permanent rotor variability
Inventor: FREUDENAU GUENTER
IPC: F03D3/06
Filed: 1990-07-04
Abstract: The wind turbine has a rotor axle positioned perpendicular to the wind direction supporting the grid rotor which has control flaps (5) for the rotor openings, allowing permanent variability of the rotor parameters. Pref., the variation of the rotor characteristics is effected via a tension cable system and hinges, hinges and levers, or levers and springs, or by the flexibility of the rotor itself. ADVANTAGE - Optimal matching of rotor characteristics to flow variations.
Patent DE-4022828-A1 (DE)
Title: Hinge for door or window - consists of hinge-pin fitted to door and socket fitted to door-post
Inventor: TRYBA JOHANNES
IPC: E05D3/02
Filed: 1990-07-18
Abstract: The hinge for a door or for a casement window consists of a first part (1) which includes the hinge-pin and a second part (2) which has a socket to receive the hinge pin. This second part (2) is rigidly attached to a plate (3) which is fixed to the doorpost or the fixed window frame. - The first part (1) with the hinge pin is attached to the door or to the moving part of the window. The height of the fixing plate (3) is equal to the sum of the heights of the two parts (1) and (2) of the hinge.
Patent DE-4025429-A1 (DE)
Title: Hollow waveguide coupling with three axes of movement - has two end flanges bridged by intermediate waveguide sections and telescopic centre section
Inventor: PITSCHI FRANZ XAVER DR
IPC: H01P1/06
Filed: 1990-08-10
Abstract: The waveguide coupling has 2 relatively spaced hollow waveguide flanges (1a,1b) each of which is formed with a hollow spherical inside face (11a,11b). The flanges (1a,1b) are bridged by 2 intermediate waveguide sections (2a,5a;2b,5b) and a centre waveguide section (4) with telescopic extensions (41a,41b) fitting within end sections (22a,22b) provided by the 2 intermediate waveguide sections (2a,5a;2b,5b). A halfwave choke (31a,32a;31b,32b;23a,23b;51a,51b) is provided between each 2 relatively movable parts. ADVANTAGE - Allows relative sliding, tipping and rotation.
Patent DE-4026549-A1 (DE)
Title: Washing machine with front-loading drum - in which drive motor bearing plate forms part of extension of support star arm
Inventor: WETZEL BERND
IPC: D06F37/20
Filed: 1990-08-22
Abstract: A washing machine incorporates a laundry drum which is loaded from the front, is surrounded by a washing soln.  container and is carried in a support star carrying the container. A drive motor features a bearing plate which is connected detachably to the motor housing. The motor is fastened on an extension of a support star arm, extending beyond the jacket outline of the washing soln. container and the bearing plate is a constituent part of the arm extension. ADVANTAGE - The motor fastening system is improved through a further reduction of components.
Patent DE-4030654-A1 (DE)
Title: Re-fitting of motor vehicle wheel -  involves dowel to ensure fitting in correct angular position to maintain balance
Inventor: VENDEL KARL-HEINZ
IPC: B60B29/00
Filed: 1990-09-28
Abstract: When changing the tyre of the wehel of a motor vehicle the wheel is removed from the vehicle and after the tyre has been changed the wheel is replaced. The wheel has usually been dynamically balanced and in order to maintain this balance the wheel must be replaced in its original angular position with respect to the brake disc or drum. To ensure the correct refitting of the wheel it is proposed to fit a dowel (3) in the wheel hub with a matching hole in the wheel. Alternatively an additional hole may be provided in hub and wheel to receive a fitted bolt. USE/ADVANTAGE - Changing wheel tyres without altering the balance of the wheel.
Patent DE-4032151-A1 (DE)
Title: Defect-free mouldings from finely divided polyurethane particles -  by compression moulding with at least intermittent application of vacuum below 1 bar
Inventor: LIMAN ULRICH DR
IPC: B29C37/00
Filed: 1990-10-10
Abstract: The prodn. of moulding prods. (I) from small particles of PUR material (II) based on polyisocyanate-polyaddn. prods., by compression moulding (II) at up to 10,000 bar and up to 230 deg. C; the novelty is that, during the moulding time, (II) is subjected to at least intermittently to a vacuum of below 1 bar. Pref., the applied vacuum is below 0.5 bar and the moulding time is not above 10 mins.. USE/ADVANTAGE - The process enables the prodn. of (I) without surface defects and blowholes, and without prolonging the moulding cycle time by delaying mould closure (contrast prior-art process), other advantages are that (II) is less readily degradable (enabling higher moulding temps. and shorter moulding times or lower pressures), the prod. has a higher degree of surface gloss and there is better bonding between the particles of (II).
Patent DE-4039868-A1 (DE)
Title: Upholstered body for vehicle seat - makes use of U=shaped connecting strip embedded in foam core
Inventor: BAERTELE HELMUT
IPC: A47C31/02
Filed: 1990-12-13
Abstract: The upholstered body (1) is for a vehicle seat. It has a core (2) made of foam material and enclosed at the sides and at the leading surface directed towards the user by a cover (7, 8). A U-shaped plastic, strip (12) is embedded in the core and serves to join adjacent sections of the cover together with a pasteboard insert (11). USE/ADVANTAGE - Upholstered body which can be pre-manufactured for assembly as a whole to the seat frame.
Patent DE-4041729-A1 (DE)
Title: New reactive dyestuff with alkenyl or alkynyl sulphonyl aryl gp.
Inventor: MARSCHNER CLAUS DR
IPC: C09B62/44
Filed: 1990-12-24
Abstract: New reactive dyestuffs (I) contg. alkenyl- or alkynyl- sulphonylaryl gps. are of the formula     X-L-Z1Z2Ar-SO2-Rg (I)     In (I), Rg = -CH(Z3)-C(U)=CZ4Z5 (IIA) or -CH(Z3-CC-Z4) (IIB); Z1-2 = H, 1-4C alkyl (opt. substd. by amino or 1-4C alkanoylamino), (substd.)phenyl, 1-4C alkoxy, COOH, 1-4C alkoxycarbonyl, CN, halogen or SO3H; Z3-5 = H, 1-4C alkyl (opt. substd. by OH or 1-4C alkoxy) or (substd.)phenyl; U = a gp. released under alkaline conditions; X = (a) a chromophore gp., opt. contg. other reactive gps. and derived from an opt. metallised mono- or disazo dyestuff, triphenodioxazine, anthraquinone, metallised formazan or metallised phthalocyanine; or (b) a gp. derived from a coupling component, opt. linked to another diazo component gp. by an azo bridge and opt. contg. other reactive gps.; L = (a) a bridging gp. of the formulae -Q1-N-A- or gp. (i) (where Q1-3 = H or 1-4C alkyl; Q4 = a protecting gp.; A = a chemical bond or 1-4C alkylene); or (b) an azo bridge.