baber/WOPTO huggingface dataset:
Patent DE-4018824-A1 (DE)
Title: Securing refuse dump by underground sealing structure
Inventor: PAURAT FRIEDRICH WILHELM
IPC: E21C41/16
Filed: 1990-06-12
Abstract: Seepage from a refuse dump is prevented by a main drift (2) under the dump, which extends over the latter entire length. The main drift is connected to the ground surface on each side of the dump (1) by sloping trenches (3). The trenches extend at right angles to the direction of the main drift and are excavated by mining machinery and conveyors.  After the trenches have been excavated, they are filled with a sealing material which is injected through the open ends of the trenches.
Patent DE-4020723-A1 (DE)
Title: Fourdrinier vibrating roller - has honeycomb surface pattern formed by strips on their edges around the circumference following regular serpentine paths
Inventor: HOLZ EMIL
IPC: D21F1/60
Filed: 1990-06-29
Abstract: The vibrating roller, for the fourdrinier of a long fourdrinier papermaking machine, has a number of projecting strips (22) standing on their edges around the circumference, extending radially in a serpentine pattern. The projections (30) form the strip zones (221), which extend along the line of the roller axis (28). ADVANTAGE - The roller is made more simply than conventional plastic rollers.
Patent DE-4025841-A1 (DE)
Title: Capacitive measurement arrangement - uses partial electrodes for constant sensitivity across tube to measure conc. of fine grain dielectric moving in delivery tube
Inventor: WAGNER ROLF
IPC: G01N27/22
Filed: 1990-08-16
Abstract: The capactive mass conc. measurement arrangement  contains a capacitive probe with spatially opposite transmitter (4) and sensor (5) electrodes. Both measurement electrodes are arrange along the direction of flow of a medium and divided into two or more partial electrodes along defined tube arcs. The partial electrodes are electrically connected and separated by a distance (7) which is a multiple of the width of one partial electrode. USE/ADVANTAGE ) For technically simple, contactless, uniform measurement of the mass conc. of fine grain dielectric medium moving in delivery tube with constant  measurement sensitivity across the tube.
Patent DE-4025880-A1 (DE)
Title: Controllable hydraulic vibration damper for vehicle bodywork - has damping piston at piston rod in cylinder which has valve discs for variable passage openings and by=pass controlled by electromagnet
Inventor: WOERMANN THOMAS DIPL ING
IPC: B60G17/08
Filed: 1990-08-16
Abstract: The bypass for tension and compression operation of the vibration damper is controlled by the electromagnet (5) across a valve slide (6), so that the bypass flow results thorugh the throttle valve body, with the spring (32) pressing the valve slider downwards, and the opening (29) frees the pressure stage bypass duct (21). The valve slider (6) is designed as a tube, and the piston rod (2) or a piston rod extension (3) is arranged longitudinally movable inside a longitudinal bore (3). The switching position with no current supplied to the electromagnet (5), effects the shock absorber characteristic hard extension stage, soft compression stage. With current supplied to electromagnet (5), corresp. extension stage is soft and compression stage is hard. ADVANTAGE - Developed as small unit, which ensures that large flow cross section is attained for bypass.
Patent DE-4026165-A1 (DE)
Title: Constructional glass panel for noise damping walL - incorporates solar cell array and consists of 2 glass panes interposed with plastic e.g. EVA
Inventor: CHEHAB OUSSAMA DIPL PHYS
IPC: H02S20/21
Filed: 1990-08-15
Abstract: Panel for a noise damping wall consists of two or more glass panes with interposed plastics material (pref. EVA or polyvinyl butyral bonding foil), united as a bonded unit (1,2,3) and positioned in front of a solar cell (4) array which is covered by a sealing glass plate (6). Also claimed is a noise damping wall constructed (partially) of panels as in (A). ADVANTAGE - Panel combines good safety and sound damping properties with solar energy recovery, can be mfd. simply and efficiently and may be (partially) transparent. (6pp Dwg.No.1/4)
Patent DE-4031050-A1 (DE)
Title: Vehicular heating and air-conditioning temp. control system - incorporates internal air temp. controller and more inert air recirculation controller checked at regular intervals
Inventor: FRITZSCHE HANS-VOLKER DIPL ING
IPC: B60H1/00
Filed: 1990-10-01
Abstract: The transfer function of the entire system including the interior space of the vehicle is approximated by a Laplace equation corresp. to a dead-time element in series with a first-order delay. A common checking unit (KE) monitors the action of the temp. controller (RT) and recirculated air controller (RU). Desired values input via a keyboard (TS) are corrected (SU) by feedback of the actual interior temp. (Ti) to the microprocessor (P). ADVANTAGE - Parameters of overall system are caused to vary continuously instead of abruptly. Long-term drift of recirculated air control is easily corrected.
Patent DE-4101892-A1 (DE)
Title: Transconductance amplifier transfer admittance control circuit - has amplifier controlling transconductance amplifier output current according to reference voltage using feedback
Inventor: ECKERT JUERGEN DIPL ING
IPC: G05F1/56
Filed: 1991-01-23
Abstract: The circuit produces defined transfer admittance values for transconductance amplifiers and contains a reference voltage stage, a control amplifier and a reference resistor. The circuit sets the transfer admittance of the amplifier (1) to a value proportional to the conductance of the reference resistor (RRef1). Reference voltages (URef2, URef1) are applied to the inputs of the transconductance amplifier (1) and of a control amplifier (2) whose output controls the transconductance amplifier output current according to the transconductance amplifier reference voltage. The transconductance amplifier output has a reference resistor connected to a reference potential and is fed back to a control amplifier input. ADVANTAGE - Transfer admittance of transconductance amplifier can be defined accurately.
Patent DE-4107406-A1 (DE)
Title: Packing material arrangement, e.g. for waste water treatment - in which vertical packing plates or paths are held together by distance pieces and tensioning system to form self-supporting unit
Inventor: MARGGRAFF MARTIN
IPC: C02F3/10
Filed: 1991-03-08
Abstract: A packing material arrangement has at least two vertical plates or paths. Between each pair of plates or paths is at least one distance piece, and the arrangement has a tensioning system which holds the plates and distance pieces together to form a self-supporting unit. This tensioning system may be made up of at least one tie rod. As an alternative, the plates and distance pieces maybe pressed together by an external frameork. This framework may form part of the reactor construction, or may hold the plates and distance pieces together as an independent cassette. This cassette is provided with means for supporting or suspending it inside the reactor. USE/ADVANTAGE - Usd for example in reactors for the cleaning of waste water. Provides min. complexity of installation in the reactor and ensures that the cleaning of the liquid is an effective and as uniform as possible
Patent DE-4109388-A1 (DE)
Title: Support system for dental treatment - has sling for dentist's arm attached to winch cable suspended from ceiling
Inventor: SCHMITT SIEGBERT DIPL ING
IPC: A61C19/00
Filed: 1991-04-23
Abstract: The support system comprises a carrier frame (1) attached to the ceiling of the room allowing a support cable (3) suspended from the frame (1) to be displaced in 2 perpendicular directions. The support cable (3) has a cushioned sling (4) at its free end and is attached to a winch drum (2) at its upper end. An electric motor (7) rotates the winch drum (2) for adjusting the height of the sling (4). A brake (8) acts on the cable (3) between the winch drum and the electric motor (7). USE - For supporting arm of dentist during dental treatment.
Patent DE-4111203-A1 (DE)
Title: Clamping mechanism and integral safety curtain for plate saw - has multi-strip safety curtain which is itself part of material clamping mechanism
Inventor: JENKNER ERWIN
IPC: B23D47/04
Filed: 1991-04-06
Abstract: The safety curtain (52) consists of a number of strips, each of which are shaped in the form of the letter L with a hook shaped upper part (58) which hangs in a slot (64) in the clamping piece (46). The lower edge of the curtain strips (56) hands underneath the clamping piece, and when in the clamped position is held between the clamping piece and the material to be cut (28). The slot (62) in the clamping piece is sufficiently large to enable the curtain strips to hang freely to the level of the bed of the saw table when no material is being clamped below the individual curtain strip. USE/ADVANTAGE - Simplified mechanism for clamping sheet material or plates on the bed of a plate sawing machine.
Patent DE-4111397-A1 (DE)
Title: Real=time control equipment for building lighting - uses e.g. personal computer for bidirectional analogue control via low-voltage serial network connected to light units
Inventor: KEMLE ERICH DIPL ING
IPC: H05B37/02
Filed: 1991-04-09
Abstract: A transmitter (18), connected after the computer (10) is cable-connected at a specific distance (a) to a receiver (20), connected in turn to at least one light regulator (24). At least one luminescence carrier or light (26) is connected to the light regulator. The transmitter and receiver are provided with optically decoupled outputs. A digital to analogue convertor and a relay are connected after the receivers, the latter being in turn connected to a regulator (25) and a light (26). An electronic card installed in a computer converts the control signals of a program into standard levels for conversion into serial signals for transmission. The electronic card is also used to convert in-going serial signals from the receiver into parallel signals which are fed to the computer. ADVANTAGE - Computerised light regulating system optimises properties of each light, i.e. duration of useful life, light yield, and economy.
Patent DE-4111611-A1 (DE)
Title: Reverse flush filter for water in factories or power stations - in which short pipe provides reverse flushing pressure to each filter element and pipe is connected to each filter element in turn
Inventor: KUEHME ERNST
IPC: B01D29/11
Filed: 1991-04-10
Abstract: A housing incorporates a number of elements for filtration of process water used in mfg. operations or power stations. The novelty is that a short pipe provides the reverse flushing pressure to each filter element. The pipe is connected with each filter element in turn and the filter core is positioned outside the fluid within the housing during the flushing process. The filter cake to be removed is dried by an external jet of compressed air and lifted from the filter surface by the reverse flow of compressed air through the filter. The filter cake thus removed is collected in the reverse flow chamber and disposed before the filter is subjected to a final cleaning. The filter elements are removed from their normal operational positions and cleaned in turn. USE/ADVANTAGE - The filter cleans process water used in manufacture of power stations. Filter cake is removed in a dried form with minimal loss of process water. Disposal of dried filter cake is straightforward. Only a small vol. of reverse flush water is required.
Patent DE-4112528-A1 (DE)
Title: Spectrophotometer used as UV detector in HPLC - has light guide between light source and photodetectors, and sealing partition wall between light source and light guide
Inventor: RINKE GUENTER DR
IPC: G01N21/33
Filed: 1991-04-17
Abstract: A spectrophotometer, used as detector for high pressure liq. chromatography, has (i) a light source (2) comprising an UV discharge lamp: (ii) a measurement cell (14) comprising a flow-through cell with two parallel windows (25) spaced by a spacer (26) to form a cavity (26a), the spacer thickness, which determines the absorption path length, being less than the square root of the cavity cross-sectional area; (iii) a light guide (9,10,11) between the light source (2) and photodetectors (15,17); and (iv) a sealing partition wall (21) between the light source (2) and the light guide (9,10,11) for separating explosion-free and explosion-protected spaces. USE/ADVANTAGE - Useful as a UV detector in high pressure liq. chromatography. It has a low detection limit, which is independent of refractive index fluctuations, and is simple and inexpensive to produce.
Patent DE-4120158-A1 (DE)
Title: Manually operated wood felling truck -  has two interconnected wheels at outer ends of U=shaped bridge
IPC: A01G23/00
Filed: 1991-06-19
Abstract: The hand-operated wood felling and/or recovery truck comprises two interconnected wheels and a lever arm engaging with the wheel connection and provided if required with a handle and brake. The connection of the two wheels (1) is designed as a U-shaped bridge (4) wherein the wheels are mounted on the outer ends (19) of the U-arms (20). The lever arm (2) extends on one side at right angles to the bridge (4) and engages in the centre area (5) of its U arc. A nose (6) for holding the tree gripper is mounted perpendicular to the u-shaped bridge (4) in the centre (5) of the arc substantially at right angles to the lever arm (2). The bridge is pref. a tubular structure. USE/ADVANTAGE - The device for wood felling and recovery of timber can be effortlessly operated by one person and provides the necessary ground clearance for use on uneven ground.
Patent DE-4121141-A1 (DE)
Title: Hydraulically actuated building block system - is for workpiece clamping and has hydraulic interconnections moulded into clamping plate cast from mineral casting material
Inventor: VAJZOVIC SAFET
IPC: F16L39/00
Filed: 1991-06-26
Abstract: The workpiece clamping system has a clamping plate (1) with a rectangular or hexagonal array of locating holes (2) which accept hydraulically actuated clamping elements, adaptors and blanking-off plugs (3,4,5). The hydraulic fluid supply and interconnecting lines are moulded into the clamping plate, which is cast from a mineral casting material with a heat expansion coefficient equal to that of the workpiece material. The location holes are formed by casting in place bushes having oil passages and retaining undercuts. When the clamping elements, blanking-off plugs etc. are inserted in the location holes a direct connection is made with the interconnecting hydraulic lines in the clamping plate. USE/ADVANTAGE - Short set-up time. Accurate clamping. Simple design avoiding exposed hydraulic lines.
Patent DE-4124076-A1 (DE)
Title: Modular solar energy device, e.g. for mounting on flat roof of garage - has solar modules attached to angled surfaces of carrier elements supported by two spaced rings
Inventor: WEBER HELMUT PROF DR ING
IPC: H02S20/24
Filed: 1991-07-19
Abstract: The solar modules are supported at different angles to the vertical by angled carrier elements (1), which are arranged in a circle. Pref. the carrier elements are attached to a pair of concentric carrier rings (2,3) held at a given spacing by angularly spaced radical struts. Carrier elements forming a large apex angle have solar modules attached to both inclined surfaces, other just on the skywards surface. The device is rotatable about a vertical axis, and some of the external carrier elements surface function as reflection surfaces. USE/ADVANTAGE - For providing electrical energy from incident solar radiation. Modules need not track sun.
Patent DE-4125826-A1 (DE)
Title: Granulating unit and associated spiked roller - has roller with integrally machined triangular spikes in spiral paths with cutting edges aligned in axial rows
Inventor: ROSCHER FRIEDER CLAUS
IPC: B01J2/12
Filed: 1991-08-05
Abstract: The granulator has two smooth rollers producing sheet which is finally gripped by spikes on granulating roller. Spikes comprise triangular plates arranged around the roller circumference along spiral paths with the longer edge following the spiral line. Spikes also form parallel rows axially aligned across the roll surface, each row having cutting edges in common plane parallel to the roller axis. Spikes are machined from solid metal to ensure security. USE/ADVANTAGE - The granulator breaks up sheets of material with lubricating properties e.g. linoleum and has roller which prevents loosening or breaking of the granulating spikes.
Patent DE-4133114-A1 (DE)
Title: Conveying system for individual items using linear motor drive - with longitudinal stator defining closed conveying path for individual conveying rotors
Inventor: RUPP MICHAEL
IPC: B65G54/02
Filed: 1991-10-05
Abstract: The conveying system uses an asynchronous linear motor as the conveying drive, having a longitudinal stator (12) with stationary electrical and electronic components and brushless rotors (11), for conveying the individual items (28). Pref. each rotor (11) is made of Al or a magnetic material, for cooperating with the stator electromagnets, the electromagnets in each individual zone of the longitudinal stator (12) being controlled independently of the electromagnets in the remaining zones. Pref. the stator (12) defines a closed conveying path for the rotors allowing the individual items to be fed through a number of successive stations. USE - For bottle cleaning and filling plant.
Patent DE-4136190-A1 (DE)
Title: Recognising and diagnosing faults in airjet loom compression system - using subsidiary jets across loom, connected to air receiver, supplying signal to controller which can stop the loom
IPC: D03D47/30
Filed: 1991-11-02
Abstract: A process to recognise and diagnose faults in the compression system on an airjet weaving loom. The loom has a weft feed accumulator and main airjet to withdrawn the yarn from a cone, and insert it into the shed. Across the loom, working in conjunction with a reed confuser channel, is a series of subsidiary jets, supplied with compressed air through flexible tubes from a reservoir with magnetic or similar supply valves, and timing control. A connection is made, either separately to the supply line of each subsidiary jet, or centrally for all jets, to an air receiver, which emits analogue or digital signals to a controller which is capable of stopping the loom. The appts. is also claimed. ADVANTAGE - When faults arise in the airjet system, other faults are created in the weaving procedure. The diagnosis and recognition is normally made with the loom stopped, which may be time consuming. If the airjet fault is anticipated by lack of performance as indicated by the controller, the resultant weaving faults are eliminated, and down time is reduced.
Patent DE-4136386-A1 (DE)
Title: Plaster for producing structured wall coverings - comprises gypsum textured with foam-coated board
Inventor: FETTE BERNHARD
IPC: E04F21/16
Filed: 1991-11-05
Abstract: Structured wall coatings are produced in buildings by plastering with gypsum, using a board with a coating of a foamed material. The board can be moved e.g. in semicircles when pressed into the gypsum coating the wall. The covering can be painted. ADVANTAGE - Low cost, environmentally acceptable, saves time and material.
Patent DE-4218212-A1 (DE)
Title: Shaping sandwich plates - with support material temporarily filling hollow spaces of the plate
Inventor: EBERT FRANK DR
IPC: B21D22/20
Filed: 1992-06-03
Abstract: The method for shaping sandwich plates (1) provided with stiffening ribs (2c) (in partic. plates made of steel or light metals) is characterised by the following steps: (a) hollow spaces of the plate, at least within the regions affected by the shaping process, are filled with a support material (4) before application of the shaping process; b) the support material is removed after completion of the shaping process. b) the support material is removed after completion of the shaping process. USE/ADVANTAGE - For mfr. of objects incorporating shaped sandwich plates. It allows shaping processes (including deep drawing) to be carried out on sandwich plates without damaging their stiffening ribs.
Patent DE-4219901-A1 (DE)
Inventor: HOTEA GHEORGHE
IPC: G02B6/42
Filed: 1992-06-17
Abstract: A terminating sleeve (1) for optical waveguides, having disposed at its distal end (3) an optical waveguide insertion opening leading into an optical waveguide receiving channel (8) disposed in the longitudinal direction in the terminating sleeve (1), the terminating sleeve (1) being formed integrally with a coupling means (6) disposed at the proximal end and serving for coupling and uncoupling light, the optical waveguide receiving channel (8) extending from the optical waveguide insertion opening up to the coupling means (6) and the terminating sleeve (1) inclusive of the coupling means (6) being made from an optically transparent material. The optical coupling means (6) has a convexly curved surface (61) on the side directed towards the terminating end of the terminating sleeve (1). This provides the optical effect of a convex lens by a light beam (15). However, it is also possible to provide other optical effects by a different design of the optical coupling means (6) directed towards the terminating end. For example, thi surface may be a concavely curved surface, e.g. when the optical area of a complementary connector has a larger diameter than the optical coupling means (6) e.g. in case of an optical coupling with a light-emitting diode or a phototransistor in the complementary connector. The surface of the optical coupling means (6) located at the terminating end of terminating sleeve (1), however, may also be a planar surface oriented either perpendicularly to the OWG axis or at an angle thereto. An inclined planar surface may be used when reflections of the light coming from the OWG are to be avoided or at least reduced on the planar surface.
Patent DE-4223518-A1 (DE)
Inventor: KLEINE WERNER
IPC: B23B31/22
Filed: 1992-07-17
Abstract: The smallest radial distance (r) of the spline faces (4a) running radially to the centre (z) of the shank (1) is greater than half the diameter (d) of the shank. In the body of the tool adjacent to shank are splines (4) having an open end towards the shank and lying outside the diameter of the shank. The spindle has a socket bush (8) with a corresponding internally splined region (5) and an interior bore (6) with driving and locking members (9, 11) for the tool shank. The splines (4) of the tool engage in the socket and allow high torques to be transmitted.
Patent DE-4233615-A1 (DE)
Title: Dental prosthesis drift dowel with shaped block - has guided surface contour in mirror symmetry to centre line orthogonal to longitudinal axis of tooth
Inventor: MENSE HOLGER
IPC: A61C13/265
Filed: 1992-10-06
Abstract: The block (10) has a base face (1) with a web, whose ends have thick portions. It has a top face (12) parallel and identical to the base face. Between the two faces is a jacket surface (13), whose contour is the same as that of the base face. The jacket surface is mirror symmetrical to a centre line (B) orthogonal the longitudinal axis (A) of the web. The contour regions (14, 15) at the centre line sides are each the same as an inner contour of the drift matrix for mirror symmetrical insertion onto the block. The latter has a spreader, actuatable from the top face, for exciting a force against two insertable matrices. USE/ADVANTAGE - For dental bridges etc., with releasable connection for implant superstructure.
Patent DE-4235081-A1 (DE)
Inventor: FALK OTTO
IPC: B02B1/04
Filed: 1992-10-17
Abstract: The invention pertains to a method of treating whole-grain cereals, wherein the grains are spray washed. The process uses only slightly more water than is needed to cover the surface of the grains. A countercurrent of air is directed at the grains and excess water is eliminated. Grains treated in this way are subjected to impact turbulence.