baber/WOPTO huggingface dataset:
Patent DE-4019792-A1 (DE)
Title: Disc brake for motor vehicle - has brake pads which are made from materials with different friction characteristics
Inventor: BUEHL HORST DIPL CHEM DR
IPC: F16D65/092
Filed: 1990-06-21
Abstract: The disc brake has a disc (10) and two brake pads (12, 14) which operate on opposite sides (18, 16) of the disc. The brake disc and the brake pads are each made of different materials. The co-efficients of friction between each pad and the disc reaches a maximum at a defined temperature for each pad and then diminishes. The materials of the disc and for each of the brake pads are so chosen that the maximum co-efficient of friction between one pad and the brake disc is reached at a lower temperature than the temperature of maximum friction for the other pad. In this way, the effective braking force remains sensibly constant over a wide range of temperature. USE - Motor vehicle brakes and friction clutches.
Patent DE-4023497-A1 (DE)
Title: Continuous dual functional filter for slurry under pressure - also scrapes cake piled on filter medium, compresses and discharges precipitated cakes continuously
Inventor: KURI SETSUYA
IPC: B01D29/25
Filed: 1990-07-24
Abstract: Continuous dual functional filter for slurry fed under pressure which also scrapes the cake piled on the filter medium, compresses and discharges the precipitated cakes continuously, comprises (a) a filtering zone consisting of a filter medium, and a filtrate-collecting chamber and a chamber for contg. a slurry and a filtered cake; (b) a cake-compressing conical zone connected at one end of the filter chamber, where a rotating screw squeezes and moves downward falling cakes scraped and pulled off the filter zone; (c) a cake-discharging zone connected to the other end of the cake-compressing zone for discharging a compressed cake formed in the cake-compressing zone; (d) a slurry feed opening and closing valve arranged on the slurry feed mechanism; (e) a cake discharge control mechanism for detecting the cake-compressing degree in the cake-compressing zone and opening or closing the cake-discharging zone to control the discharge of the compressed cake; (f) a backwashing mechanism for peeling off the heel cake and washing the filter medium; (g) a slurry relief conduit and valve, for decreasing immediately the pressure in the filter chamber; and (h) a detecting mechanism of clogging up of the filter medium, such as checking the flow rate of the filtrate and measuring the pressure difference between the filter zone and the filtrate collecting chamber.
Patent DE-4023655-A1 (DE)
Title: Auxiliary switch for manual motor protective circuit breaker - has spring-loaded pawl lever and is fitted in housing secured to circuit breaker from below
Inventor: HILFIKER PETER
IPC: H01H71/46
Filed: 1990-07-25
Abstract: The auxiliary switch (7) has a spring loaded pawl lever (6), actuated by a delatching part (5) only in a faulty instance. The auxiliary switch is fitted in a U-shaped housing (13), inserted from below into the housing (14) of the protective circuit breaker (1). In the auxiliary switch housing bottom an actuating plunger (10) is fitted which is slidable in the bottom longitudinal direction. It is spring-loaded in the switching direction. In the rest position it can be held by the pawl lever. The plunger acts on the movable contact (17), and is reset by depression of the OFF key (3) of the protective circuit breaker via a link drive. ADVANTAGE - Easy fitting with relatively large tolerances to protective circuit breaker, without further space requirements.
Patent DE-4027776-A1 (DE)
Title: Microprocessor operating control for roller blind
Inventor: RUMP HANNS
IPC: G05B19/42
Filed: 1990-09-01
Abstract: The microprocessor operating control for a roller blind allows the blind to be adjusted automatically in dependence on the detected brightness to maintain a required light level using stored values representing the degree of light corresponding to different blind settings.  The opening and closing of the roller blind may also be initiated at specific times of day entered in a memory. Pref. the roller blind adjustment is controlled using a combination of detected brightness values and detected temp values.
Patent DE-4030663-A1 (DE)
Title: Electro dipping lacquering of electrically non conducting substrate - carrying electrically conducting polypropylene layer obtd. by plasma polymerisation, for glass fibres reinforcing synthetics
Inventor: HOPPE-HOEFFLER MONIKA DR
IPC: B05D1/00
Filed: 1990-09-28
Abstract: Lacquering comprises (a) dipping substrate into an aq. electro-dipper lacquer contg. a cathodically or anodically separable synthetic resin, (b) connecting substrate as cathode to the anode, (c) sepg. film on the substrate by d.c., (d) removing substrate from the lacquer and (e) crosslinking sepd. lacquer film. Substrate is an electrically non-conducting substrate coated with an electrically conducting layer obtd. by plasma polymerisation. ADVANTAGE - Carrying thin metal layers is avoided. The layer obtd. by plasma polymerisation prevents diffusion of plasticisers from plastic parts and so prevents delamination of the lacquer layer. Substrates which could not be lacquered by the electro-dipping process,(e.g. glass fibres for reinforcing synthetics or for prodn. of light-conductors) can be treated. Lacquering non-polar substrates, e.g. polypropylene blends, are overcome. Parts of vehicle bodywork comprising synthetic materials can be given the same lacquer as metal parts. (4pp Dwg.No.0/0)
Patent DE-4030723-A1 (DE)
Title: Diesel cycle pile driver -  has sliding external sleeves to adjust length of working stroke
IPC: E02D7/12
Filed: 1990-09-28
Abstract: The pile driver operates on the principle of the Diesel engine cycle. It has a cylinder (10) with a hammer head (16) and a heavy piston (18) operates inside the cylinder. The cylinder has rectangular ports (28) formed in its wall. These ports are covered by an external sleeve (24) which has passageways (22,34) and which forms a seal with the cylinder wall. The sleeve (24) can be moved axially with respect to the cylinder by means of hydraulic cylinders (40) in order to adjust the length of the effective working stroke of the pile driver. USE/ADVANTAGE - Diesel cycle pile drivers with adjustable working stroke.
Patent DE-4035368-A1 (DE)
Inventor: MASSEN ROBERT PROF DR ING
IPC: H04N1/028
Filed: 1990-11-07
Abstract: A scanning system adapted to produce enhanced resolution in an optical scanning device includes means (21, 24) to generate a composite light spot by the superposition of a plurality of light (21, 22) spots of differing size and frequency, means (26) to direct the composite light spot towards a corresponding plurality of frequency selective photoreceivers (28, 29), the photoreceivers being so constructed or selected that each has a peak sensitivity response to only one of the light frequencies and signal processing means (32) to generate from a weighted (30, 31) sum of the response of said photoreceivers a response which corresponds to the scanning with a two-dimensional transfer function of predetermined shape.
Patent DE-4102542-A1 (DE)
Title: Inductive proximity switch with constant trigger distance - has oscillator producing magnetic field influenced by difference between field sensing coil voltages
Inventor: TIGGES BURKHARD DIPL ING
IPC: H03K17/95
Filed: 1991-01-29
Abstract: The inductive proximity switch has an oscillator (1) which supplies a transmitter coil (2) which generates an alternating magnetic field. The oscillations are affected by a metal trigger which penetrates the field. An evaluation circuit (8) derives a switching signal from changes in the oscillation state. Two sensor coils (12,13) in the field are connected in a direct difference circuit to detect the difference of the voltages (U1,U2) induced in them. Their relative spatial arrangement and numbers of windings are selected to give a null difference for a certain response state. The a.c. difference voltage is fed back to the input (16) of the oscillator amplifier (7) so that the oscillator state undergoes a step change for a null difference. USE/ADVANTAGE - For detecting proximity of metal trigger. Switch has single response distance which remains constant over wide temp. range, e.g. from -25 to 100 degree C.
Patent DE-4105798-A1 (DE)
Title: Tool used in rescue work following accident - has two hinged legs which are hydraulically actuated
Inventor: HERWIG PETER
IPC: A62B3/00
Filed: 1991-02-23
Abstract: The tool is for use in rescue work following an accident. It consists of two legs (2, 3) which are pivoted on links attached to the body of the rescue equipment. The legs can be swung outwards or vibrated by means of a hydraulic cylinder (7) which has a piston 6) which is connected to the legs (2, 3). An additional tool (8) is pivoted to the end of each leg and is actuated by a secod hydraulic cylinder (9). This additional tool (8) may be provided with a cutting edge or it may be used to expand an opening in the wreckage. USE/ADVANTAGE - Tool for use in rescue work. The tool can be used to grip or cut away wreckage.
Patent DE-4106797-A1 (DE)
Inventor: KOSCHER STEFAN
IPC: A61B10/06
Filed: 1991-03-04
Abstract: The invention concerns a surgical instrument, in particular a suction cutter for taking tissue samples, with a cutter mouth operated by means of a handle or similar device acting through at least one connecting rod or similar device. The connecting rod or similar device is connected to a drive unit (13). This drive unit (13) is an electric motor with clockwise/anti-clockwise transmission.
Patent DE-4106957-A1 (DE)
Title: Resilient guide for floating-caliper type, partially lines disc brake - has sheet metal spring securely hooked on caliper against accidental release
Inventor: WEILER ROLF
IPC: F16D65/097
Filed: 1991-03-05
Abstract: The resilient guide for a brake calliper has recesses (29) cast in the area of the bores on the inside of the brake calliper (10) facing the brake disc and designed to hold the hooks (31) of fingers bent out of a middle section. The bores are designed as stepped bores (27,28) with a restriction adjoining the recesses (29). The size and shape of the hooks are such that they can only be pushed through the restriction when the incline of the fingers (22) deviates from the final installation position. The hooks can have on their rear side a projection (32) offset in the direction of the longitudinal axis of the finger relative to the hooks by an amt. corresponding to the axial length of the restriction. ADVANTAGE - Spring can be securely fixed on the calliper without danger of accidental release.
Patent DE-4110625-A1 (DE)
Title: Catalyst for oxidative dehydro:dimerisation of lower hydrocarbon(s) - contains praseodymium, neodymium and lead on aluminium oxide
Inventor: WENDT GERHARD DR
IPC: B01J37/02
Filed: 1991-04-02
Abstract: A catalyst (I) comprises 1-5% of a mixt. of Pr and Nd and 15-25% Pb on eta- and/or gamma-aluminium oxide. (I) is prepd. by impregnating eta- and/or gamma-aluminium oxide with salt solns. contg. Pr(3+)/Nd(3+) and then drying, tempering at 450-950 deg.C for 1-10 hrs., cooling to room temp. and then impregnating with salt soln. of Pb(2+), drying at 750-950 deg.C for 1-10 hrs. and tempering in a stream of air or inert gas. Vol. ratio of Al2O3 and impregnating soln., (pref. didym soln. produced on sepg. the rare earths), is 1:0.85-1 at an impregnating time of 0.1-24 hrs. USE/ADVANTAGE - (I) can be used for the oxidative dehydrodimerisation of lower hydrocarbons to higher hydrocarbons, e.g. ethene or ethene/ethane mixts. It has a high thermal stability, activity and selectivity and is not prone to deactiv
Patent DE-4112301-A1 (DE)
Title: Gas sensor reference electrode contg. alkali cpd. - for partial pressure determn. of e.g. nitrogen oxide(s), used in multiphase equilibrium avoiding escape of e.g. liq. sodium at high operating temp.
Inventor: LIU JUN
IPC: G01N27/30
Filed: 1991-04-15
Abstract: Reference electrode contg. an alkali cpd. (I) is a multinary multiphase equilibrium is claimed, esp. for gas sensors consisting of an electrochemical cell with reference electrode. Pref. (I) is a Na cpd.. The equilibrium is a 2-phase equilibrium of a binary alkali/metal cpd., pref. with Sb or Bi; a ternary equilibrium or an alkali/metal/oxide cpd., pref. with a transistion metal, Co and/or Ni or an intercalation cpd. of the formula AxMX2; where A = Li, Na, H or H; M = Ti, V, Cr, Mn, Fe, Co, Ni, Y, Nb, Mo, Lh (sic), Th, W or Re; x = between O and the saturation region of the intercalation cpd. with A, pref. x = 0.5-1.2. In particular, (I) is NaxCoO2, NaxNiO2 or NaOCoO2. USE/ADVANTAGE - The electrode is for determining the partial pressure of NOx, CO2, SO2, SO3 and O2. It avoids the danger of liq. Na escaping at high temps.. In an example, the bronze cpds. Na2CO2 and NaxNiO2 were prepd. by heating a mixt. of Na2O2 and Co3O4 in air for 1 day at 900 deg. C or from Na2O2 and NiO at 800 deg. C.
Patent DE-4116434-A1 (DE)
Title: TV power supply blocking converter with auxiliary winding only at primary transformer side - has transistor switching stage controlled by comparison of regulator input with measured value
Inventor: FESKE ANDRE
IPC: H02M3/335
Filed: 1991-05-18
Abstract: The blocking converter has a primary circuit having a switching transistor (1) coupled via the primary winding to the supply (3). The emitter connects via a current sensing resistor (5) to a mains network (6) to provide a turn off voltage. A voltage controlled current source (12) connects with a primary side auxiliary winding (13). A switching stage (14) is coupled to the transistor base. A regulator (18) output is compared (15) with the measured value and controls switching of the turn off phase. Diodes (22, 23) control the blocking phase of the converter, together with a decoupling diode. ADVANTAGE - Avoids need for secondary side feedback.
Patent DE-4116760-A1 (DE)
Title: Vehicle instrument panel with polarising layer - which reduces reflection to avoid overlay images on windscreen
Inventor: HOFELE GUENTER
IPC: B60K37/00
Filed: 1991-05-23
Abstract: The vehicle instrument panel (2) is positioned in the region of the windscreen (1), the surface of which in part or in whole is provided with a non-reflecting or low reflectance coating. The surface of the panel is so formed that the light reflected on it is linearly polarised by a polarising layer. The polarisation planes run parallel to the incidence planes formed by a beam of light and the path (4 or 5) of a beam of light from the screen to the driver's eye (3). ADVANTAGE - Instrument panel arrangement which avoids a distracting overlay image on the windscreen.
Patent DE-4122906-A1 (DE)
Title: Divested bacteria prepn. for vaccines - by binding partially oxidised polysaccharide to surface, and coating modified bacteria with viral or bacterial protein or polypeptide
Inventor: VARGA ANDRAS DR
IPC: A61K39/21
Filed: 1991-07-08
Abstract: Prodn. of vaccines against viral or bacterial antigens or epitopes comprises (1) binding partially oxidised polysaccharides (A) to the surface of bacteria; (2) coating the modified bacteria with viral or bacterial proteins and polypeptides (B), then (3) opt. combining the resulting suspension with additives. Also claimed are; (i) vaccines contg. bacteria to which first (A) and then (B) have been attached; and (ii) these bacteria ("directed bacteria") themselves. (A) are esp. from dextran, but may also be from starch, glucomannan, pectin, cellulose, chitosan or lipo-polysaccharides. The bacteria are Mycobacteria (esp. BCG strain) or Bordeletla pertussis. USE/ADVANTAGE - These vaccines provide stronger humoral and cellular immune responses compared with use of weakly immunogenic (B) along. The vaccines are useful in human or veterinary medicine, or in the pharmaceutical industry. They require no adjuvant.
Patent DE-4126367-A1 (DE)
Title: Torque control of IC engine with two parallel throttle valves - has servo drive coupled to secondary throttle valve for idling speed control
Inventor: GOEHRING FRANK
IPC: B60K26/04
Filed: 1991-08-09
Abstract: The main throttle valve (5) is operated by a linkage (3) controlled by the throttle pedal (1). The secondary throttle valve (13) is operated by a coupling to the first throttle, to provide additonal fuel flow. The secondary throttle can also be controlled by a control element (12) linked to the vehicle parameters. A servo drive (17 to 19) can be linked to the secondary drive by a coupling (20). The servo drive provides control settings for the throttle to regulate the engine torque, idling speed etc. and uses an electric motor (17) for the setting control. The secondary throttle is also mechanically linked to the main throttle linkage by a geared drive. ADVANTAGE - Both throttle valves regulated over full control range.
Patent DE-4130748-A1 (DE)
Title: Heating and cooling building using fluid media - involves common forward and rear flow conduit switchable between heating and cooling functions
Inventor: ROSENAU BERND DIPL ING
IPC: F24F11/06
Filed: 1991-09-16
Abstract: To the heat transmitter (2) forward flow connections (14,16) and those of the cold transmitter (3) a conduit (18,19) is connected. To the back flow connections (15,17) of the heat (2) and cold transmitters (2,3) a conduit (29,30) is connected. The forward flow conduits (18,19) are connected alternately with one of the other distributor conduits (6,7) for the connection of the heating/cooling elements (8). By effective engagement of a regulator (21) on switch units fitted to the heat and cold transmitters, with heat operation the heating medium forward feed is connected to the one connecting conduit (5) of the heating/cooling element (8) and with cooling operation the cooling medium forward feed is connected to the other connecting conduit (4) of the heating/cooling element (8). USE/ADVANTAGE - To regulate simply heating and cooling of a building, reducing the risk of faulty switching and the use of cables.
Patent DE-4133206-A1 (DE)
Title: Automatic measuring system for refractive index of out-of-line optical system - uses detector arrangement positioned on optical axis to form at least three scanning apertures for emergent light
Inventor: CAMPBELL CHARLES EDWARD
IPC: A61B3/103
Filed: 1991-10-07
Abstract: An i.r. light source (30), pref. a LED, illuminates a condenser lens (32). An aperture (34) limits the dia. of the emergent beam. This impinges a relay lens (36) selected and positioned such that the aperture is imaged in the plane of the pupil (1) of an eye (E). The beam emerging from the relay lens is rotated by 90 deg. by a polarising beam splitter (40). The beam from the latter enters the eye to illuminate a small stationary spot on the retina. This spot serves as a well-defined sec. light source used to detect refracting faults of the eye under examination. A chopper disc or movable boundary-defining component (l) is provided in the optometer space. This disc comprises a transparent and an opaque part. USE - Determining power of refraction of lens ophthalmology.
Patent DE-4201795-A1 (DE)
Title: Method for increased power output from hydrogen- air fuel cell - requires auxiliary compressor for supplying an air storage tank with valve allowing boost to normal compressed air supply
Inventor: STRASSER KARL DIPL ING
IPC: H01M8/04089
Filed: 1992-01-23
Abstract: Hydrogen-air fuel cell power output is increased by boosting the partial pressure of the oxygen in the air supply by increasing the total pressure of the air supply. This involves having a compressor in the air-line with an auxiliary air-line and compressor feeding an air storage tank, with valves between the first air compressor and the fuel cell, between the second compressor and the tank and also between tank and fuel cell. The compressed air in the tank is kept at a minimum pressure by the second compressor. In the event of increased load demand, this air is used to boost the normal air supply to the cell from the first compressor. ADVANTAGE - Allows the cell to meet peak load requirements above the normal loading.
Patent DE-4205872-A1 (DE)
Title: Contact thermometer for fishing water testing and fish temp. measurement - measures temp. of caught fish with needle of high thermal conductivity in contact with thermometer bulb
Inventor: OFFERGELD GERD HUBERT
IPC: G01K5/04
Filed: 1992-02-26
Abstract: The contact thermometer consists of a body (12) made of transparent material, containing a thermometer bulb (14) and a capillary (16), and a scale (18) covering a range of 0-30 deg.C in steps of 0.5 or 1 deg. At the top is a clip (20) for attachment to a fishing line, at the base the bulb (14) is fixed in sealing compound (26), which also contains ballast pellets of lead or other material. The sealing compound is a heat insulator. The base cap contains a spike (32) and metallic heat path (36,42) which fits on to the thermometer bulb. A protective cap (44) shields the spike (32) when not in use. USE - Determination of suitable depth of water/temp. for fish angling.
Patent DE-4207044-A1 (DE)
Title: Duct for leading combustion gases from water heater - has metal outer housing lined with thermal insulation
Inventor: MUELLER MAX
IPC: B21D51/52
Filed: 1992-03-03
Abstract: The burner of a water heater has a duct for the outflow of the combustion gases. This duct has an outer housing of metal with a lining of thermal insulation. The metal housing is formed from a blank (2) with tags (3) projecting from the edges. Two opposite sides (9) of the blank are folded at right angles along the fold lines (8). The tags (3) along one edge are than folded over parallel to the main surface. The panel of insulation is then fitted and the tags (3) on the other edge are then folded over to hold the insulation in place. USE/ADVANTAGE - Duct for combustion gases from a heater. The thermal insulation panels are easily attached to the duct housing.
Patent DE-4207684-A1 (DE)
Title: Housing for computer tape spools - has housing formed by two half sections that wave central registration features and self latching action
Inventor: LUDERER HEINZ
IPC: G11B23/027
Filed: 1992-03-11
Abstract: The housing for enclosing computer tape spools is produced from two parts, a base and a lid, (12,14) that latch together. Both halves of the housing are of a general cylindrical form and create an internal annular space for the tape spools. The centre sections both have locating surfaces, coaxial inner rings, (24,26) for the tape. One centre projection is produced with a small central aperture (32) that acts as a location surface for a projection (34) formed on the other housing half. A projecting lug with a claw section (40) passes through a formed slot and latches against the other half to secure the sections together. USE/ADVANTAGE - Simple construction, low cost. Latching parts are produced from one part each on base and lid, so no separate components are needed.
Patent DE-4211188-A1 (DE)
Title: Joint design for extending wooden beams in formwork - using cheek plates over length of joint with inserts into groove of main section and secured by through wedge.
Inventor: PIELMEIER ALBERT
IPC: E04G17/02
Filed: 1992-04-03
Abstract: The timber members to be jointed have an I-cross-section at the area to be jointed. A pair of timber planks stretch longitudinally over the joint area on either side. The planks have a strip mounted on their inner face which is sized to fit into the I-section timber side channels. A set of tie rods (13) and wedges (15) extend through transverse openings, and are used to secure the joint. USE/ADVANTAGE - Joint design used for extending timber beams used in concrete formwork.