baber/WOPTO huggingface dataset:
Patent DE-4006355-A1 (DE)
Title: Anti-corrosion device for branch pipes - incorporates plastics sleeve body with protective mass in interspace
Inventor: ILG MANFRED
IPC: F16L58/18
Filed: 1990-03-01
Abstract: The anti-corrosion device is for a branch pipe which is connected to the pipe line by a short connecting pipe. It comprises two half shells which make up a sleeve body (5) which encloses at a distance the short connecting pipe (2) and a part of the branch pipe (4) attached thereto and which is fixedly connected to the pipe line (1) and branch pipe (4). The inside of the sleeve body after connection with the branch pipe can be filled compeltely with an anti-corrosion substance.  The two half shells of the sleeve body are pref hinged together. USE/ADVANTAGE - Easier economical way of protecting the pipe connection.
Patent DE-4007226-A1 (DE)
Inventor: WHITE ANTHONY DEREK
IPC: H04R3/00
Filed: 1990-03-07
Abstract: An adaptive noise cancelling arrangement for use with a beamformer comprising a target field and a self noise field. The cancelling arrangement is provided with a primary input 1 for receiving the target field beam and a reference input 2 receiving the self noise field beam. The primary input signal is subjected to a delay 6, passed to an adder circuit 7, and the reference input is processed by a finite impulse response filter 5. The delayed signal and the output of the filter are summed by adder circuit 7 which generates an output signal having the desired improved signal/noise ratio. <IMAGE>
Patent DE-4020192-A1 (DE)
Title: Phase error compensation system for quadrature phase modulated carrier - uses correction signals obtained from control signals related to sum of sine and cosine of phase errors
Inventor: BIRTH WINFRID DIPL ING
IPC: H04L27/00
Filed: 1990-06-25
Abstract: The phase error compensation system detects the orthogonal phase error at the transmission and reception side, the transmitted signal (s(t)) subjected to quadrature demodulation to provide 2 signal components (q(t),i(t)). A correction signal obtained from the product of a control signal (k,k') and one signal component (q(t),i(t)) is subtracted from each signal component (q(t),i(t)). The control signals (k,k') are provided by the sum of the sines of the transmission and reception phase errors and by the sum of the cosines of the transmission and reception phase errors. ADVANTAGE - Maintains low orthogonal phase error.
Patent DE-4020193-A1 (DE)
Inventor: DORDA GERHARD DR
IPC: H01L29/775
Filed: 1990-06-25
Abstract: MOSFET with longitudinally divided gate metal coating (1) and a minimum distance (1) between the parts (11, 12) of said gate metal coating, which corresponds essentially to the width of the current path in a two-dimensional electron gas on the surface of the semiconductor material in the gate region. In order to form in the channel zone an electron gas having a surface charge carrier density higher than 3x10<11> cm<-2>, the semiconductor material of the channel layer (7) is doped. Alternatively, it is possible in the case of a MOSFET to introduce doping atoms in the dielectric layer (8). It is also possible to cover the gate metal coating (1) with a dielectric layer and to apply thereon another gate metal coating that is subjected during operation to a potential in such a way that charge carriers are drawn to the surface. A FET with a gate metal coating that occupies a narrow band in the longitudinal direction of the channel and has a throat is further described. Preferably, these FETs are designed as MOSFETs.
Patent DE-4041428-A1 (DE)
Title: Ladder stability securing mechanism - has sprung telescopic bracket with hook, whose holders engage two adjacent rungs
Inventor: EBERL PAUL
IPC: E06C7/48
Filed: 1990-12-21
Abstract: The mechanism secures a ladder safely in a lean-to working position. It comprises a hook (5), protruding from a telescopic bracket (6), which retracts in opposition to one or more extension springs (11). The bracket has holders (7,8) at the ends facing away from each other, and by which it fits over two adjacent rungs, with holders typically of U-section. ADVANTAGE - Improved safety, and easy subsequent fitting.
Patent DE-4100236-A1 (DE)
Title: Wheeled vehicle with shock-absorbers esp. for forestry - has changeover valve allowing reciprocal flows of oil between reservoir and upper and lower damping chambers
Inventor: JAECKLE FRANZ
IPC: B60G17/08
Filed: 1991-01-07
Abstract: Each suspension (1,1a) incorporates an axle carrier (2) with a helical spring (3) and a hydraulic shock-absorber (4) with a piston (8) exerting pressure on oil in the upper chamber (9). The hydraulic circuit (P) includes a change over valve (13) which gives access via a line (14) to two smaller circuits (17,18) contg. a pressure-limiting valve(19) and a magnetic valve (20) respectively. The lower chamber (22) draws oil from the reservoir (21) via a non-return valve (24) and a connection (5) with a constriction (27) to the change over valve (13). ADVANTAGE - Simple installation adaptable with assisted springing to wide range of movements.
Patent DE-4102108-A1 (DE)
Title: Hydraulically damped door-closing unit - has straight cylindrical base contained entirely inside cylinder and accommodating pivot pin
Inventor: BAECKER ARMIN
IPC: F16F9/32
Filed: 1991-01-25
Abstract: The hydraulically-damped door-closing unit has a tubular oil-filled cylinder containing a piston with valve on the end of a rod.  This is moved in opposition to a coil-type compression spring by an external force.  A base protruding into the cylinder is symmetrical in relation to it and has a supporting zone, a sealing one with peripheral groove for an O-ring, a clamping zone and a fixing one, the latter with a radial through drilling for a pivot pin working in a housing body. The base (1) forms a straight cylindrical body entirely accommodated inside the cylinder (12).  Its outer peripheral surface constitutes a combined clamping and fixing zone (29), bearing against the inside of the cylinder at the latter's end.  The pivot pin is accommodated in a radial bore (36) extending through this zone and the two cylinder walls. USE/ADVANTAGE - Low cost of bottom, at which there is no leakage over a long period.
Patent DE-4105070-A1 (DE)
Title: Valve with housing containing inlets and outlets - has two discs, one fixed and one rotary, with through holes, valve seating, and flange
Inventor: WAGNER FRIEDRICH DIPL ING
IPC: F16K27/04
Filed: 1991-02-19
Abstract: The valve has a housing (1) with inlets and outlets and inserted into fitments. The housing contains a disc (3) with at least one through-hole (12) across the lengthwise axis, as a valve seating. A shut-off device in the form of a rotary disc (4) with at least one through-hole is axially mounted on the valve seating. The rotary disc is held in a fixed position by a carrier (2) axially supported in the housing. The axially immovable disc is held on a flange (13) in the housing. Both discs (3,4) have a through-hole (30,40) near their central axis (10) and forming a duct to a counter-pressure chamber (20). ADVANTAGE - The valve has two discs positioned with a relatively low min. pressure applied so that in normal usage only little force is required for operating the valve.
Patent DE-4107952-A1 (DE)
Title: Radial piston pump assembly - is activated by eccentric on rotatable shaft with support body between eccentric and piston
Inventor: HERTELL SIEGFRIED DIPL ING
IPC: F04B1/04
Filed: 1991-03-13
Abstract: The pump has a body (1) with an inner chamber (22), radially directed cylinders and pistons (4.1) moving in the cylinders. The pistons move inwards under the effect of a spring (6.1) and outwards radially under the pressure of a rotatable eccentric. On the eccentric, pref. through the intermediary of an armoured bush, is located a support body which is made of bearing metal, and is rotatable against the eccentric. The body has a surface which locates against the face surface of the piston, the matching between the two surfaces being such that there is linear or point contact between them, with relative movability of the piston against the support body. USE/ADVANTAGE - As a radial piston pump in which only slight surface pressure applies between its eccentric and the piston face, obviating wear and providing low operating noise.
Patent DE-4113073-A1 (DE)
Inventor: SCHREIJAEG FRIEDRICH
IPC: B26D7/02
Filed: 1991-04-22
Abstract: The meat slicer (1) proposed comprises a housing (2), a rotating circular cutter blade (K), a sliding carriage (3) which may be driven either by hand or by motor to execute a reciprocating motion and which is designed to hold the meat to be sliced, and a pivoting gripping device (4) which can be displaced at right angles to the direction of motion of the carriage (3) and which holds the meat in place on the carriage and feeds it towards the cutter blade (K). Fitted on the carriage (3) so that it cannot rotate is a guide shaft (6) along which the pivoting meat-gripping device (4) can travel at right angles to the direction of motion of the carriage (3). Between the gripping device and its pivot shaft (7) is a coupling locking element (44) which is self-locking in one direction of rotation.
Patent DE-4113261-A1 (DE)
Title: Electroless application of copper@ base coat to reinforced teflon substrate - by removing copper@ lining on substrates with caustic ammonia etching bath, purifying substrate, catalysing substrate, chemical copper@ plating, drying and annealing
Inventor: SATTLER DIETER
IPC: H05K3/06
Filed: 1991-04-23
Abstract: Currentless coating of Cu-lined Teflon substrates (glass fibre reinforced or filled with ceramic powder) with a thin layer of Cu is effected by: (i) removal of the Cu-lining in a caustic ammonia etching bath, (ii) substrate purificn. using an alkaline purifying agent at 60-80 deg.C., (iii) catalysis of the substrate at 30-32 deg.C. for 12-14 min. using a Cu colloid-based catalyst, concn. 320-350 ml/l and pH 3.5 +/- 0.2, (iv) chemical Cu of the substrate at 220 +/- 1 deg.C. for 18-20 mins. using a Cu bath contg. 3 +/- 0.3 g/l Cu, 16-19 g/l Na0H and 16-18 ml/l 37% formaldehyde soln., and (v) drying and annealing the substrate at 140-180 deg.C. for at least 30 min. in an atmos. of N2. The substrate is rinsed between steps. Substrate purificn. is pref. at 60-62 deg.C. and drying and annealing pref. at 150 +/- 5 deg.C.. Rinsing of the substrate between steps by plunging into an overflow rinse both is at room temp. for 4-5 min.. USE - Used for mfg. of circuit line constructions having selected surge impendan
Patent DE-4114952-A1 (DE)
Title: Nonwoven material for use as filter fabric, etc. - has two layers consisting of spun-bounded or nonwoven material on which carded staple mat is placed
Inventor: HERMANS JOHANNES A H
IPC: B01D39/08
Filed: 1991-05-08
Abstract: A nonwoven material with two layers consists of a spunbonded or a nonwoven material on which a carded staple fibre mat is placed. The mat is joined to the spunbonded or nonwoven material by needling. The nonwoven material is made wholly or partially of continuous bicomponent filaments. The spunbonded material can consist of polyamide, polyester, polyethylene or poplypropylene. Akzo-Enka's Colback with a polyester core and a polyamide covering is a partic. suitable for the nonwoven material. ADVANTAGE - The material can be used in a wide variety of applications, including as filter fabric.
Patent DE-4116772-A1 (DE)
Title: Seed potato germination bags - have sections of suspendable air permeable sack and can be emptied or filled separately or in gps.
Inventor: WURR EGON
IPC: A01C1/02
Filed: 1991-05-23
Abstract: Germinating bags of air permeable material are formed from a sack with vertical divisions to form neighbouring sections (4, 5) in a row, but sepd. from each other and can be filled and emptied separately or in gps.. Suspensions (13,13'; 14,14'; 15,15') are distributed along the whole width of the sack. Filling wt. is distributed across the suspensions equally in the sections (4,5). Suspensions (13,13'; 14,14'; 15,15'), above and/or below the bag sections (4,5), are as gripping perforations, projecting loops above and/or below each bag section, or a hollow seam across the whole sack width with a rod (15) projecting at both ends. Openings to fill the bag sections are at the ends which become the bottom to be emptied at the other end. Sack, with the bag sections, is part of a continuous sacking web. Vertical divisions, to form the bag sections (4,5), leave a projecting flap running across only part of the sack height. Sack material is a leno of polyethylene, polypropylene and/or a mixed ribbon weave, or a Raschel of polyethylene, polypropylene and/or a mixt.. Sack is divided into three to five bag sections (4,5), and pref. four sections, all of equal width. USE/ADVANTAGE - For seed potatoes and similar plant crops. Bags are easily filled and emptied, and the material is undamaged while being moved in the filling and emptying stages and also during germination and resting.
Patent DE-4117007-A1 (DE)
Title: Processor-periphery control signal detector - has circuit providing continuous comparison of bus voltage with capacitor generated voltage to produce output when equal
Inventor: KIML HELMUT
IPC: H04Q9/06
Filed: 1991-05-24
Abstract: An interface used to connect peripheral equipment to a central processor is coupled to the communications bus (10). A comparator (12) receives the bus signal and generates an output whenever the voltage level equals that determined by a capacitor (C). The capacitor is charged by a unit that forms a constant current regulator that contains a current mirror stage (16) having a pair of PNP transistors (T1, T2). A second stage (18) delivers a sum current value (IS1). A difference amplifier (24) provides a control input. ADVANTAGE - Controls transmission to peripherals coupled onto long bus.
Patent DE-4125834-A1 (DE)
Inventor: KUNERT HEINZ DR
IPC: F24J2/04
Filed: 1991-08-03
Abstract: Window, arranged in a casement, turnable through 180 DEG  about a centre axis and having at least one window wing opening in the usual way, with an insulating-glass pane consisting of a white-glass pane and of a selective absorption pane, with a casement surrounding the insulating-glass pane on all sides, with bands arranged in the region of a side edge for swinging open the window wing, with a turning joint arranged on the casement along a vertical or horizontal centre axis, for turning the insulating-glass pane through 180 DEG , with a frame fixed to the building, and with a continuous seal between the frame fixed to the building and the casement for the insulating-glass pane.
Patent DE-4125918-A1 (DE)
Title: Composite bulletproof sheet - has metal or plastic skins and core of hard ceramic layers with matching prismatic type relief faces bonded together to absorb shock waves
Inventor: FICHT REINHOLD
IPC: B32B3/28
Filed: 1991-08-05
Abstract: A bullet-proof sheet has a composite structure with a hard ceramic core between two skins of metal or plastic material. At least the ceramic layer is designed so as to absorb shock waves and/or reflect them between the one skin and the ceramic sheet. Pref. ceramics are e.g. carbides, nitrides or aluminium oxide-zinc oxide types; pref. skins are aluminium or "Kevlar" (R.T.N.). ADVANTAGE - The constituent members of the sheet minimise the destructive effect of shock waves produced by the impact of high velocity bullets.
Patent DE-4128588-A1 (DE)
Inventor: BAUMGARTEN HANNELORE
IPC: C08G18/82
Filed: 1991-08-28
Abstract: The invention relates to dispersed liquids containing hydroxy and/or amino-functional compounds by causing polyurethane, polyurethane/polyurea and polyurea waste made by the PUR-RIM and/or RRIM process to react with at least one diamine compound. The dispersed liquids thus made are suitable for the production of polyurethanes, polyurethane ureas or polyureas.
Patent DE-4137456-A1 (DE)
Title: Cover for private car -  consists of shell supported on frame made of metal or plastic
Inventor: FREY KURT
IPC: E04H6/04
Filed: 1991-11-14
Abstract: The cover (1) for a private car is intended for use where no garage is available, but where there is a parking space for the car. The cover consists of a shell which is supported on a frame made of plastic or metal. The cover consists of a small front part which is fixed to the ground by anchor bolts. The main part of the cover is hinged to the upper rear edge of the front part and can be swung upwards to allow the car to be driven into the parking space. The main part of the cover is then swung downwards over the car. The joint line between the two parts is inclined at 60 deg. to the horizontal. USE/ADVANTAGE - Car cover for car for use where there is no space for a garage.
Patent DE-4137929-A1 (DE)
Title: Removing higher hydrocarbon(s), esp. aromatics, from crude gas - by withdrawing from pre-scrubber, subjecting to azeotropic distn. condensing vapour, water washing and regenerating washing agent in energetically favourable process
Inventor: BECKER HANS DR ING
IPC: C10K1/08
Filed: 1991-11-18
Abstract: Removal comprises (a) withdrawing the gas mixt. from the head of the prescrubber; (b) scrubbing the prescrubber to remove acidic gases and (c) regenerating washing agent from the mixt. contg. washing agent and higher hydrocarbons. The crude gas is obtd. by gasifying a C-contg. material using a prewashing stage employing a washing agent. The mixt. withdrawn from the sump of the prescrubber is relieved and is subjected to azeotropic distn.. The head prod. of the azetropic distn. is water washed, the washing agent vapour is back-washed and at the head is a vapour mixt. contg. light hydrocarbons and water vapour is collected. The vapour mixt. is condensed, the condensate decanted and a hydrocarbon-rich fraction and a water-rich liq. stream are obtd., the water-rich stream being fed to the azeotropic distn. stage or to the water-washing stage; The sump prod. of the azeotropic distn. is led to a distillative washing agent/water sepn. stage to recover the regenerated washing agent. ADVANTAGE  - The process is energetically favourable.
Patent DE-4138595-A1 (DE)
Title: Extractor for reducing emission of strong odours in exhaust air - comprises exhaust pipe with side perforations beneath ventilator housed in shaft wide enough to cover pipe perforations
Inventor: LANGNER MANFRED
IPC: F24F7/06
Filed: 1991-11-23
Abstract: The device consists of a shaft (3) with both sides open, which houses a ventilator (4) with large air throughput. The ventilator is set at a distance above an exhaust pipe (1) with outlets (5) along either side at an obtuse angle to each other. The shaft is wide to project over either side of the exhaust covering the outlets, and also projects upwards above the ventilator. The shaft has sound proof sides which at the bottom are open at the sides (8) and covered bulkheads (6) parallel to the shaft sides. ADVANTAGE - Cheap to produce and operate.
Patent DE-4205160-A1 (DE)
Title: Water-driven generation plant - has reservoir with input and output sluices and vertically moving float inside coupled to generator
Inventor: KETTLER ERICH
IPC: F03B13/18
Filed: 1992-02-20
Abstract: A water-driven generation plant, esp. applicable to small rivers,streams and tidal waves, has a reservoir in which a float can move vertically with minimal side play. The reservoir is open to the water on one side by a sluice gate and the water can exit by another sluice on the other side. The float is coupled to a gearbox and generator mounted on crossbeams above it so that, as it moves up and down with the water, electricity is generated. The inlet sluice slides vertically and the exit sluice tilts outwards. They are recontrolled so that one opens while the other is closed. The float has a narrower upper region. ADVANTAGE Requires only low water quantities to generate power and is therefore highly efficient.
Patent DE-4209072-A1 (DE)
Title: Stress free liquid crystal display system - embeds connections from conductors to printed circuit board leads in e.g. epoxy] resin which is cured in UV and unheated
Inventor: BITTER THOMAS DR RER NAT
IPC: G02F1/13
Filed: 1992-03-20
Abstract: A liquid crystal display has a liquid crystal layer between two cover plates, one of which is glass and is larger than the other; the projecting part of the latter has conductors which are connected to those of another circuit in the form of a PCB with integrated circuits; the connections between the conductors on the projecting part of the glass plate and those on the PCB are made by means of conducting particles embedded in an anisotropic adhesive which is cured in u/v. A preferred adhesive is an epoxy resin. The cross-section shown has a glass plate (1) with a number of segment electrodes (3), a smaller pref. glass back plate (2) with its electrode (5), and the projecting part (1a) of the first plate (1). This projection (1a) has the connections (3a) from the liquid crystal to the segment electrodes (3). The back plate (2) is bonded to the front plate (1) along a seal (6) to enclose the liquid crystal layer (4). The electrodes (3,5) and leads (3a) are conventional indium-tin oxide. The control circuits (12) are on a special PCB (13). The leads (7,3a) are connected in the anisotropic adhesive (8) cured in UV and containing conducting particles (9), which are e.g. externally metallised elastic microspheres. USE/ADVANTAGE - The system has minimum stresses on the bonds because they are not subjected to high temps. The absence of heating also simplifies the procedure.
Patent DE-4209976-A1 (DE)
Title: Folded paper tray to carry e.g. food - is cut from single blank, to be folded manually without using adhesive
IPC: B65D5/20
Filed: 1992-03-27
Abstract: The tray consists of paper or a similar material, and may be wrapped in transparent film, when filled. It has a base, two side walls, two end walls, and triangular corner walls. These are located between side and end walls, and each has a central fold line to divide into two. All sections are cut from a single blank. Each side and end wall is divided into two by a central fold line, which branches, to include a top horizontal surface. One side wall has a projecting surface, with a small wing, defined by a fold line. After folding, this engages on the base of the tray. Each end wall has a small end wing, limited by a transverse fold line. This is pushed between side wall and base, during folding. ADVANTAGE - Environmentally-friendly disposal, can be printed-on, is form stable.
Patent DE-4222118-A1 (DE)
Title: Coupler manufacture, e.g. for laser power monitoring coupler prodn. - melting two optical fibres together and drawing them longitudinally whilst feeding in and detecting light
Inventor: STIEB WERNER
IPC: G02B6/34
Filed: 1992-07-06
Abstract: Two adjacent, contacting glass fibres (1,2) are melted together and drawn out in the longitudinal direction whilst in the molten state. A light signal of wavelength longer than the operating wavelength is fed into one end of one fibre during the extension process and is detected at the fibre ends. For an operating light wavelength of 1300-1350 nm., the wavelength of the light used is 1500-1600 nm. If for use in manufacturing ring resonators, two gates (Tor2,Tor4) of the coupler are spliced together after drawing. USE/ADVANTAGE - E.g. for making monitoring couplers for laser power monitoring. Enables couplers with small coupling factors, i.e. less than 1 per cent, to be made.
Patent DE-4222903-A1 (DE)
Title: Ironing board with electricity supply - has service units, and longitudinal side extension with anti-slide edge
IPC: D06F79/02
Filed: 1992-07-11
Abstract: An ironing board is equipped with electricity supply and service devices, e.g. a sleeve board, lead guide, illuminating unit etc. The longitudinal side (15) of the ironing surface is equipped with a tiltable or insertable extension (16) adjoined by an antislide edge. On the transverse side (3), the ironing board has a support box (5) with an electric centre and a laundry support (25) which can be tilted above the electric centre. ADVANTAGE - All service units are integrated efficiently and large items can be iron with ease.