baber/WOPTO huggingface dataset:
Patent DE-4015160-A1 (DE)
Inventor: BRECKWOLDT JOERN DIPL CHEM DR
IPC: C09D11/03
Filed: 1990-05-11
Abstract: The novel thermoplastic methylhydroxypropylcellulose ethers have a mean degree of substitution by methyl groups of from 1.5 to 2.9 and a molar degree of substitution by hydroxypropyl groups of from 1.4 to 1.9.
Patent DE-4024944-A1 (DE)
Title: Preventing triggering of explosive by armoured vehicle - using radiation reflecting and emitting system
Inventor: STOLZENBERG PETER GEORG
IPC: F41H11/00
Filed: 1990-08-07
Abstract: In the method: (a) reflection and non-interruption of an IR or normal light beam is ensured pref. by reflective pigments incorporated in the vehicle lacquer or plastics (glass fibre-reinforced plastics), the tyres or the tyre walls, and pref. by a reflective coating on the glazing; and (b) provision of an IR luminescent diode strip with intensifying lenses to emit ancillary radiation. ADVANTAGE - The vehicle has a relatively unnoticeable change in appearance and reflects explosive-triggering IR and light beams.
Patent DE-4040101-A1 (DE)
Title: Non-destructing contactless measuring of moisture content of solid body - using two sources of EM radiation of known power, one directed to measuring spot on sample surface and other to vapour bubble produced
Inventor: VETTERLEIN THOMAS
IPC: G01N25/56
Filed: 1990-12-14
Abstract: The heating beam (S1) emanating from the first source (L1) is directed onto a measuring spot (8) on the sample surface (1a) of, e.g. a rock or mineral specimen (1) for a set period. A definite quantum of heat energy is thus absorbed by the specimen. A vapour bubble (D) is consequently formed in the atmos. bordering the measuring spot. - The measuring beam (S2) emanating from the second source (L2, L2') is guided along part of the length of the sample nearly in parallel with it to penetrate the bubble to reach a sensor (4). The residual intensity of the weakened measuring beam measured by the sensor serves as a measure for the vapour density and thus the moisture content of the sample. The heating beam is pref. a laser beam of wavelength lying in the i.r. range. The measuring is a laser beam of wavelength lying in the visible range.
Patent DE-4105610-A1 (DE)
Title: Tractor-mounted implement for silage removal - has reciprocating blades connected by crank disks
Inventor: POHLMANN REINHARD
IPC: A01F25/20
Filed: 1991-02-22
Abstract: The tractor-mounted implement is used for removing silage from a silo. It has a frame with reciprocating blades. The connection of the blades on the side arms with the blade of the middle arm in the corners of the cutting frame is achieved via crank disks positioned in the arm ends. The crank disks are movably connected with each other. USE/ADVANTAGE - The design of the tractor-mounted implement is simple and reduces wear.
Patent DE-4111587-A1 (DE)
Inventor: FISCHER ARTUR PROF DR
IPC: F16B13/12
Filed: 1991-04-11
Abstract: 2.1 An expanding sleeve, which is equipped with longitudinal slots and a tapering internal hole, of an expanding dowel which can be expanded by an expanding pin is normally made from solid material by drilling out the tapering internal hole in the expanding sleeve. 2.2 A simplified and more cost-effective method of making the expanding sleeve is proposed in such a manner that a mandrel (4) which is provided with a tip is inserted into the expanding sleeve which has a continuously identical internal hole, and the front end of the expanding sleeve is jammed in a die (7) in such a manner that the internal hole of the expanding sleeve is formed plastically, corresponding to the tip of the mandrel. <IMAGE>
Patent DE-4115291-A1 (DE)
Title: Immobilised chiral polymers with chemically bonded metal - useful in chromatographic separations and analyses or in nuclear resonance analysis
Inventor: SCHURIG VOLKER PROF DR
IPC: B01J20/32
Filed: 1991-05-10
Abstract: Metal-contg. polymers (e.g., polysiloxanes, block polymers or smectic phases) are claimed which have a chiral coordination cpd. chemically bonded to the polymer chain and which are immobilised on glass, fused silica or silica gel (silica bead) surfaces. The metal coordination cpd. is pref. (a) a transition metal cpd., esp. an Mn(II)-, Co(II)- Ni(II)-, Cu(II)- or Zn(II)-bischelate of a chiral ketone; or (b) a lanthanide metal cpd., esp. an Ey(III)-, Gd(III)- or Yb(III)-tris-chelate of a chiral diketone. USE/ADVANTAGE - The immobilised polymers can be used: (i) in the sepn. of isomers, isotopes, enantiomers or complex mixts. by chromatography using liqs. or gases in normal or supercritical state as mobile phase (e.g., SCF) or by electrokinetic methods and ultra- or hyper-filtration; and (ii) in the analysis of isotopes, isomers and esp. enantiomers by high resolution nuclear resonance (both (i) and (ii) are claimed). The chemically bonded metal-contg. polymers show better heat stability and wash-out resistance when used as stationary phases on the inside of chromatographic columns than do prior art physical mixts. They can be synthesised from silane monomers and show up to 80% immobilisation after conditioning at 180 deg.C for 24 hrs. under an iner
Patent DE-4116894-A1 (DE)
Title: Tracking signal input control for solar collector - uses photodiodes at corners of perpendicular cross carried by surface at right angles to incident radiation
Inventor: BROD MICHAEL
IPC: F24S50/20
Filed: 1991-05-23
Abstract: The tracking signal input control has electronic and mechanical parts, the mechanical part supported by a surface (1) lying parallel to the incident solar radiation with a right angle cross (2) projecting perpendicularly from this surface. The surface (1) has a photodiode at each right angle corner of the cross (2), the opposing diodes connected in pairs. Pref. the voltage differences between the photodiodes in each pair are used to control the tracking motors for the solar collector. ADVANTAGE - Low cost tracking system.
Patent DE-4118688-A1 (DE)
Title: Wheel lock on railway vehicle transporters - has locking rail and parallel inner contact rail, lock is pivoted against contact rail
Inventor: SCHOENBERGER PETER
IPC: B60P3/077
Filed: 1991-06-07
Abstract: The wheel lock with parallel guide rails is for use on railway wagons transporting motor vehicles. It is displaceable in the guide rails. The distance between the holder clamps on the device is larger than the distance between the guide rails. The lock is lockable in one guide rail, via a journal. An inner contact rail (4) with a vertical web (9) is located parallel to an outer locking rail (3). The contact rail has a top (10) with a head profile (11), having a surface, which is at an angle to the locking rail. The wheel lock is pivoted against the web, through an angle of alpha 90 degrees, with its end (17) facing the contact rail. ADVANTAGE - Change in construction permits use esp. with cars.
Patent DE-4122559-A1 (DE)
Title: Hollow cylinders prodn. from wire - involves winding wire around rotating mandrel to form overlapping coils
Inventor: KRUEGER HELMUT
IPC: B62D1/19
Filed: 1991-07-08
Abstract: Wire or a wire-likematerial is first bent to a continuous wave form and then formed into a hollow cylinder.  The hollow cylinder is formed by winding the wire (12) around a mandrel with the axis of the wire being inclined at an angle (alpha) to the axis of the mandrel. The wire (12) is held at the angle (alpha) by means of a guide plate (11) which has a corner angle equal to (alpha).  The wire (12) is pressed against one edge of the plate whilst the mandrel (13) is pressed against the other edge and at the same time rotated about its own axis and moved axially.  The angle (alpha) is chosen to produce the required amount of overlap of adjacent coils. USE - Hollow cylinders produced from wire.
Patent DE-4126335-A1 (DE)
Title: Surface acoustic wave resonator with interdigital converter - has continuously changing geometry period in reflectors and/or converter
Inventor: FLEISCHMANN BERND
IPC: H03H9/02
Filed: 1991-08-08
Abstract: The resonator has at least one interdigital converter (4) and several reflectors (2, 3) on a piezoelectric substrate (1). To suppress losses caused by geometry period changes actuating vol. waves, there are different geometry periods between the reflectors and the interdigital converters. The reflectors and/or the interdigital converter contain a continuously changing geometry period. Pref. a continuously changing geometry period is provided in the reflector edge region, facing the interdigital converter. Typically, a single continuously changing geometry period is contained in the interdigital converter. USE/ADVANTAGE - Also for surface wave resonator filter with several reflectors/converters. Reduced losses caused by mode conversion.
Patent DE-4127452-A1 (DE)
Title: Feeding device for fish - consists of inverted gutter floating on water surface fixed to rounded walls and with saucer-like bottom
Inventor: HINZ GABRIELE
IPC: A01K61/80
Filed: 1991-08-20
Abstract: The feeder consists of a frame floating on the surface of the water (1) and surrounding the fish food (2), and a submerged plate (5) to catch the falling food.The frame comprises an inverted gutter-like element (3), the half of which (4) forms a funnel to guide the sinking food (2) towards the middle of the catch plate (5). The upper edge (7) of the outer rim (6) of the gutter (3) is fixed to the rounded outward and downward diverging sides (8) with several cutouts (9). The sides (8) are clipped onto the saucer-like catch plate (5) on the bottom rim (10). The air filled space below the gutter (3) is sealed by a circular plate (12). USE/ADVANTAGE - Feeding device ensures that sinking fish food does not fall to the edges of the pond or aquarium floor to rot and poison the water.
Patent DE-4128434-A1 (DE)
Title: Ascertaining timing point of magnetic valve of fuel injector of motor vehicle IC engine - comparing timing response relay signal of solenoid of valve  with control signal to generate timing correction
Inventor: LUTAT MARTIN DIPL ING
IPC: F02B3/06
Filed: 1991-08-27
Abstract: A fuel injection controller generates control signals (ST) for operation of the solenoid valve of the injector. The injection point (TEin) will depend upon an operational parameter. The signal is generated in advance (TTVn) in order to achieve the correct timing and the solenoid valve responds accordingly (MV). The response delay of the valve (TTI(n)) is compared with the entered value (TTV(n)) to generate a timing difference (TD(n)). The following value (TTV(n)) generated by the controller may be corrected based upon this difference to achieve the correct timing. USE/ADVANTAGE-Ascertaining time point of operation of magnetic valve of fuel injector of i.c. engine, esp. diesel. Can correct injection timing signals. Can also be applied for precision detection of time point at which an event should occur, e.g. braking pressure control in antilocking system, robot control.
Patent DE-4130686-A1 (DE)
Title: Outlet valve system for radial reciprocating pumps -  has parallel spring strips which close alternate outlet orifices in two radial planes
Inventor: MERZ JOHANN
IPC: F04B1/04
Filed: 1991-09-14
Abstract: The pump housing (1) has several cylinder bores (6) for plungers (7). The bores are plugged by inserts (13) with outlet orifices (15) which are closed by a band-shaped vlave element consisting of two spring strips (16,16A) located side by side. The outlet (15,15A) are staggered so that only every alternate orifice is covered by the same spring strip (16,16A).  Each insert (13) has a cross bar (17) which serves as a guide fro the spring strips (16,16a). USE/ADVANTAGE - Cheap to produce; prevents piston interaction due to premature overflow of pressurised oil from adjacent outlet orifices.
Patent DE-4132411-A1 (DE)
Title: Tanning skins and fleeces with thermally balanced liq. recycling - using liq(s). from closed rotating treatment vessel, recycled through flotation systems which separate fats, salts and chromium hydroxide
Inventor: SUESSE HARALD DIPL ING
IPC: C14C15/00
Filed: 1991-09-25
Abstract: Appts. for tanning skins and fleeces consists of a horizontal vessel which rotates inside a closed container. Temperature controlled vessels serve for recycling and disposing of the tanning liquids and are connected to the tanning vessel. These vessels are arranged so that removal of sulphur dioxide, fats, solids, proteins and salts as well as chromium hydroxide is achieved. A sealable filling chamber for the skins or fleeces, with an emptying opening, is provided at the open end of the inner vessel. This filling chamber may be mounted on a pivoting support. The vessel is kept at an even temp. by the insulating layer of air between it and the outer container, and is provided with inlets for the tanning liquid and additives. External scrolls on the rotating inner vessel ensure that impurities are moved towards an outlet point. Treatment of soaking water, lye-water and pickling water is achieved in flotation containers which are connected directly with the storage containers for the respective liq(s). USE/ADVANTAGE - For curing and treatment of skins and fleeces. Damage to the environment due to the disposal of the undesirable elements in the tannery waste water is avoided in economically and energy-efficiently. The consumption of chemicals is also reduced and operation costs are decreased.
Patent DE-4133151-A1 (DE)
Inventor: BAUMGAERTL ULRICH
IPC: G01R31/58
Filed: 1991-09-30
Abstract: The invention relates to a device for earth-conductor monitoring for supply leads of mobile electrical equipment (MB) for low-voltage networks in underground mining, consisting of a basic apparatus (GG) which monitors condition and an output element (EG) which controls the power supply of the electrical equipment (MB), the output element (EG) being connected to the basic apparatus (GG) via an earth conductor (PE) and a monitoring conductor (ÜL) having a suitable series resistance (RS). A second sub-voltage (UT2), which has a sawtooth wave form and is used with a first sub-voltage (UT1) of the basic apparatus (GG) to determine the operating state of the earth conductor (PE), is produced in the output element (EG) by means of a control device which can be controlled using zener-breakdown voltages. Such devices are used for monitoring conductors of low-voltage networks in underground mining. <IMAGE>
Patent DE-4137361-A1 (DE)
Title: Electro-optical signal transmission installation - has transmit diode(s) in transmitter(s), emitting wavelength pref. in 830 mm. range
Inventor: LASSER OTHMAR DR PHIL
IPC: H04B10/114
Filed: 1991-11-13
Abstract: The electro-optical signal transmission takes place in a face space and has at least are transmitter and receiver. In the transmitter(s) (1) at least one transmit diode (3) has an emission wavelength range of between 800 and 900 mm, pref. 830 mm. In the receiver (8) at least one receiver diode (4) respond. only to wavelength below 900 mm, pref. 830 mm. Pref. the receiver diode is of gallium arsenide type. It may be fitted with a daylight filter, several receiver diode may be fitted with a lens with a lens with a metal sensor ring inside the lens body. USE/ADVANTAGE - For digital or analogue IR signal transmission in free space, with reduced reception, interference.
Patent DE-4138343-A1 (DE)
Title: Electrophotographic photoreceptor with adhesive coating - of epoxide] resin contg. phosphorus cpd. or PVA contg. cyclic boron cpd. for stable properties
Inventor: AIZAWA KOICHI
IPC: G03G5/14
Filed: 1991-11-21
Abstract: Electrophotographic photoreceptor has an electroconductive substrate with a laminated adhesive layer and then laminated photosensitive layer. The novelty is that the adhesive layer is based on (a) a resin (I) and P in an amt. of ca. 30-500 wt. ppm w.r.t. (I); or (b) PVA and 1.5-10 wt.% w.r.t. PVA of a B cpd. of formula (II). Pref. (I) is an epoxide resin. Layer (b) may also contain max 50% alcohol-soluble polyamide w.r.t. PVA. ADVANTAGE - The photoconductor has high sensitivity, good charging properties, low residual potential and little variation of these properties with environmental changes, hence always gives copies of good quality
Patent DE-4200082-A1 (DE)
Title: Magnetisable marking element detecting device - includes signal analyser for analysing receiver output signal, having a band pass filter and comparator
Inventor: SANETRA JUERGEN DIPL ING
IPC: G08B13/24
Filed: 1992-01-03
Abstract: The detecting device includes a transmitter (10) which generates an exciter-magnetic alternating field to magnetise the marking element. A receiver (26) in the magnetic field generates a corresponding output signal (U2). A signal analyser (30) which analyses the receiver output signal includes a band pass filter (28) whose output (U3) consists of a superposition of the signal portion whose frequency is a multiple of the bottom frequency of the receiver output signal, and a comparator (24). The comparator generates a first signal when the magnitude of a time interval (Tx,Tz) is equal to a half cycle period (To/2) of the exciter-magnetic alternating field or is within a predefined tolerance. A display device (46, 48) generates a first display signal in response to the comparator output signal. USE/ADVANTAGE - For use in protecting against, e.g. shop-lifting or theft of object, e.g. book, CD, video. Has simple structure and produces high degree of sensitivity to interference.
Patent DE-4203898-A1 (DE)
Title: EKG electrode patch with cable-connected silver electrodes - has metallic plates fixed in easily manageable positions and carrier soaked in electrolyte or medicament for iontophoresis
Inventor: BERGNER MARIO
IPC: A61N1/04
Filed: 1992-02-11
Abstract: The electrodes (4, 4') of two such patches (5, 5') are connected together by an electrically conducting cable (8). More than two treatment electrodes of different construction and electrical interconnection are used. A carrier (11, 11') soaked in electrolyte is laid between the skin contact electrodes (1, 2') and the skin. The plates (2, 1') of different metals or electrode materials have insulated edges (3, 3') and are connected to the patches by bars (10, 10'); the edge insulation may be eliminated from a double electrode arrangement. ADVANTAGE - Compatibility with skin of patient is improved, mfr. is simplified and consumption of material is minimised.
Patent DE-4205666-A1 (DE)
Title: Simple joint shaft for connecting two shafts - using intermediate shaft whose ends are joined to shafts via toggle joint couplings
Inventor: KIRSCHEY GERHARD DIPL ING
IPC: F16D3/28
Filed: 1992-02-25
Abstract: A joint shaft is for joining two shafts by means of an intermediary shaft, whose two ends are connected to one end of each shaft via a toggle joint coupling. The toggle joint couplings are identical on both sides of the intermediate shaft, i.e. the number and size of toggle joints are the same. The joints adjoining the intermediate shaft are connected by means of joining bolts and cylindrical, elastic bearings. The other joints of the toggle joints are connected to flange hubs adjoining the shafts. This connection is effected by means of joining bolts and spherical, elastic bearings. Each cylindrical bearing is associated with an axial pressure bearing in order to support the toggle joint against centrifugal forces affecting the joint. ADVANTAGE - The joint shaft is simpler than prior art units.
Patent DE-4221158-A1 (DE)
Title: Loom warps - roughened during weaving to give soft handle
Inventor: MUSTERER ROLF
IPC: D03J1/02
Filed: 1992-06-27
Abstract: To increase the warp cover during weaving, the warps are roughened by suitable units. The warps are roughened by the to-and-fro movement of a modified reed using the forwards and/or backwards motion, such as through a brush on the reed which acts on the warps at cycled intervals from the sley beating-in point to the rear dead point of the reed. The roughening movement can be in a combination of directions. The roughening brush is cleaned before or after in the working position. USE/ADVANTAGE - When weaving with warps of spun yarns, the roughening action gives the warps increased bulk and volume. The roughening action converts yarns with a hard character to give a soft woven fabric with slight transparency.
Patent DE-4224604-A1 (DE)
Title: Electronic prevention of calcareous deposits in water systems - by applying pulses of current between electrodes, independent of water flow rate and conductivity.
Inventor: STRAUB JUERGEN
IPC: C02F1/48
Filed: 1992-07-25
Abstract: An electronic device for preventing calcareous deposits in water pipes has two electrodes (3,4) between which the water flows. These electrodes are provided with flow guide vanes (8) and are connected to a control system (7). The control system is provided with a frequency wobbulator and that current and flow measurements are used to keep the electrode current constant in spite of changing water flow rate and degree of hardness. USE/ADVANTAGE - Used for preventing calcareous deposits which disrupt the operation of hot and cold water systems, boiler systems, heaters, cooling towers, etc.. The control system produces current pulses which are independent of water flow rate and conductivity, and the prevention of deposits is therefore more effective and more reliable.
Patent DE-4224665-A1 (DE)
Title: Hedge trimmer blade holder - comprises light metal upper guide with recess and bearing for nuts and bolts which secure blade
Inventor: KLOEPFER HANS
IPC: A01G3/053
Filed: 1992-07-25
Abstract: The upper guide (10) is a hollow rod open along its underside which faces the upper cutter blade (8). The hollow space (13) extends the full length of the guide rod with a uniform cross section, and provides a seating for the heads (16) of the bolts (14, 16) which secure the two cutter blades (8, 9). The bolt heads are saw toothed on the underside to provide a grip against the edges of the light metal guide rod (10). The trimmer blades (8, 9) are held between the guide rod (10) and a spring steel rod (11). The guide rod is of extruded aluminium with rounded top surface, and the steel rod (11) has projections at intervals along its length which press against the top guide rod. ADVANTAGE - Greater stability due to lighter weight.
Patent DE-4228801-A1 (DE)
Inventor: BERGLER FRANK DIPL ING
IPC: H04Q11/04
Filed: 1992-08-29
Abstract: A subscriber terminal for ISDN networks in the form of an ISDN telephone set (11) is provided with a key panel (15, 16), a display (14) and with a connection socket (19) for another application terminal (21-24) such as a printer and/or keyboard and/or computer, for example a PC. To provide an inexpensive facility for connecting an application terminal, an interface is integrated in the ISDN telephone set (11), by means of which the communication capability between the application terminal (21-24) to be connected and the ISDN network can be established. <IMAGE>
Patent DE-4229075-A1 (DE)
Title: Over head fitted, horizontally movable handicapped person lifter - has fully insulated mains fed spindle motor on elongated base frame, with lifting member coupled to movable roller head
Inventor: RECK ANTON
IPC: A61G7/10
Filed: 1992-09-01
Abstract: The handicapped person to be lifted is suspended in a support strap fitting, and a cable (14) is used for the lifting. A fully insulated, mains connectable spindle motor (15) is set on an elongated base frame (1,2), with its lifting member (16) coupled to a movable roller head (9) of a pulley block. The pulley block other roller head (10) is normally fixed on the base frame. The cable is alternately looped round the pulleys of the roller heads. One cable end is secured to one roller head. Pref. a manual pull spindle fitting (21) is provided on the base frame for moving the motor, or the fixed roller head, closely together. USE/ADVANTAGE - For hospitals, sanatoria etc., with an operational facility in case of electricity failure.