baber/WOPTO huggingface dataset:
Patent DE-4030033-A1 (DE)
Title: Vehicle shock absorber with inner and outer movable pipe -  has gas compartment with pad, operating piston, separating piston, and three liq. compartments
Inventor: BONENBERGER HARTMUT
IPC: F16F9/06
Filed: 1990-09-22
Abstract: The vehicle shock absorber has an inner (1) pipe moving inside an outer (15) pipe. A gas-compartment (3) contains a high pressure gas pad and begins at the base of the sealed inner pipe (1) contg. a separating-piston (4). An operating-piston (12) is joined to the outer (15) pipe. The side of the operating piston (12) facing the second (11) of two liquid-compartments (6,11) has a third-compartment (14) connected to the second liquid-compartment (11) by means of a control. The outer pipe (15) is moved in relation to the inner pipe (1) by a defined axial amount from a basic position when the connecting valve (17) between the third (14) and second (12) liquid-compartment is opened. The second (11) and third (14) liquid-compartments near the operating piston (12) has grooves (18) in the wall of the inner pipe (1). USE/ADVANTAGE - The two relatively movable can be axially extended.
Patent DE-4037942-A1 (DE)
Title: Digital delay unit with high time resolution - couples equivalent outputs of memory matrices by OR wiring
Inventor: SCHULZ AXEL DIPL ING
IPC: H03K5/131
Filed: 1990-11-23
Abstract: The delay unit consist of counters and memories. The equivalent outputs of several memory matrices are interlinked by OR wiring. Specified memory materials are completely written by zeroes. To specified addresses of one memory matrix a bit trcin is applied enabling a timed position and width of the pulses to be generated. Rapid counters have a frequency corresp. to a cycle time period of a single memory component. Each counter is allocated precisely one memory component, whose output data appears in the raster of the phase shift of the generated addresses. USE/ADVANAGE - Digital, programmed pulse transmitting circuit, with adjustable delay and pulse width.
Patent DE-4040373-A1 (DE)
Inventor: TANAKA SHIGEHIRO
IPC: E01C19/10
Filed: 1990-12-17
Abstract: An asphalt recycling apparatus (1) of small size, which is capable of reusing waste asphalt pieces as they are obtained from the work place of repairing underground piping or wiring is disclosed. This asphalt recycling apparatus (1) comprises a rotatable and tiltable combustion drum (3) supported on a frame (6) disposed in a casing (2), a front opening provided with a pair of doors (21A, 21B) and disposed on the front side of the casing (2) such that the opening coincides with the location of the top opening (3a) of the combustion drum (3), a cross member (7), one end of which is rotatably connected to one (21A) of the doors (21) and the other end of which is detachably connected to the other one (21B) of the doors, a burner-supporting member (70) fixed to the cross member (7) so as to direct the flame of a burner (8) to the top opening of the combustion drum (3), and a shoot door (22) disposed below the front opening and hinged to the casing (2) and capable of acting, when downwardly rotated, as a shoot for guiding a regenerated asphalt discharged from the combustion drum (3).
Patent DE-4104073-A1 (DE)
Inventor: WINKELJANN ANTONIUS
IPC: B25B27/06
Filed: 1991-02-11
Abstract: The extraction tool (1) for expanding sleeves (2) of anchors consists of a shank (1a) which has a conical external thread (1b) tapering towards one, free end and carries a force-application means (1c) at the other end. The shank (1a) has a central passage bore (1d), extending in the longitudinal direction, for receiving anchor bolts (4). After relieving the expanding sleeve (2) by axially driving in the anchor bolt (4), the extraction tool (1) can be screwed, by way of its external thread (1b), into the gap between the anchor bolt (4) and the expanding sleeve (2). By screwing in the extraction tool (1), the external thread (1b) cuts into the internal wall (2b) of the expanding sleeve (2) and thus forms a positive connection. By applying an axial force to the force-application means (1c), the expanding sleeve (2) can be extracted from the drill hole (9) of the receiving material (3). 
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Patent DE-4106378-A1 (DE)
Inventor: HOMM KARL GEORG DIPL ING
IPC: F16L3/22
Filed: 1991-02-28
Abstract: The connection device has a connection body (12) with at least one connection nozzle (20) onto which the end section of the plastic pipe (14) which is to be connected can be plugged. The external diameter of the connection nozzle (20) is greater than the internal diameter of the plastic pipe (14). Before the plastic pipe (14) is plugged onto the connection nozzle, a compression sleeve (28) is pushed onto the plastic pipe. The internal diameter of the compression sleeve (28) is selected such that the compression sleeve (28) can be pressed onto the end section (24) of the plastic pipe (14) which is plugged onto the connection nozzle (20). At the same time, the plastic pipe (14) is displaced in the axial direction until its front end is immersed in a retaining groove (46) which surrounds the connection nozzle (20) in an annular shape and is open towards the plastic tube (14). The retaining groove (46) is inclined with respect to the axis (50) of the connection body (12), the diameter of the annulus of the retaining groove (46) reducing with increasing depth. <IMAGE>
Patent DE-4112701-A1 (DE)
Inventor: BELLER JACOB
IPC: B22C9/10
Filed: 1991-04-18
Abstract: A sand core bound with a synthetic resin for metal casting and formed in a core box is hardened by passing a hardener gas through the core. If the hardener gas is a component of a two-component resin, large quantities of hardener gas reactant are required to harden the resin binder. Conventionally, a very large excess of such a hardener gas in a mixture of hardener gas and carrier gas is passed through the sand core in a single pass and must then be removed, at considerable expense, from the waste gas, to prevent environmental pollution. In the invention, on the other hand, only a slight stoichiometric excess of hardener gas is used and therefore the waste gases can be vented directly to atmosphere. To this end, the hardener gas is pumped (12) in several passes through the core boxes (1) in a highly evacuated, closed-circuit line system (1, 11, 15). Before gassing is begun, a vacuum container (15) is evacuated by the pump (12). When air spontaneously enters the vacuum container (15), the core box (1) is evacuated and sucks in the hardener gas as a mixture of hardener gas and air or, preferably, the liquid hardener substance sprayed into an evaporator. In practical series operation of a core shooter for producing sand cores weighing 5 to 22 kg using resol as the resin binder and methyl formate as the hardener, the quantity of excess hardener used was 0 to 70 %.
Patent DE-4115853-A1 (DE)
Title: Atomising nozzle for oil burner - has second nozzle which injects steam into oil outlet nozzle
Inventor: EFFENBERGER HELMUT PROF DR ING
IPC: F23D11/10
Filed: 1991-05-10
Abstract: The burner has an atomising nozzle which has a central duct (4) for oil which is surrounded by parallel passageways for steam. The fuel flows out through a nozzle (7) in which it is atomised by a jet of steam from a second nozzle (8). This second nozzle (8) is fitted in an annular chamber (6) which is supplied with steam. The steam flows into the second nozzle (8) through radial holes (10) in the nozzle wall. Some fuel flows into this second nozzle through passageways (14,15) which connect it to the central duct (4). USE/ADVANTAGE - The nozzle can atomise fuels with a high viscosity.
Patent DE-4116399-A1 (DE)
Title: Piston and cylinder unit for hydropneumatic vehicle suspension - has piston rod with internal plunger fitted inside cylinder
Inventor: RUNKEL WALTER DIPL ING DR
IPC: F15B15/14
Filed: 1991-05-18
Abstract: The cylinder (2) contains a piston (4) with a hollow projecting rod (6). At the other end of the cylinder the piston divides off a variable volume compartment (10) filled with hydraulic medium. A connection (14) for a hydropneumatic spring loaded unit (16) opens into the chamber (10). A hollow internal cylinder (32) in the piston rod has a plunger (34) sealed against the inner wall of the rod and rigidly mounted to the closed end of the cylinder (2a) by a connecting element (40) extending axially through the bore (38) in the hollow piston rod. USE/ADVANTAGE - Piston and cylinder assembly in vehicle suspension provides good stability against lateral forces, but the piston stroke effects only a relatively small flow of hydraulic medium; avoids high internal friction in lines and the resulting overheating of hydraulic medium.
Patent DE-4121937-A1 (DE)
Title: Battery operated balance for explosive zones - has removable module contg. rechargeable battery and data memory for weighing and/or other data
Inventor: MELCHER FRANZ-JOSEF
IPC: G01G23/00
Filed: 1991-07-03
Abstract: A battery operated balance for explosive regions contains a weighing pan (2) with a display (3), a keyboard (4), digital signal processing unit (5) and a data memory (9) for weighing and/or other data. The data memory is mounted in a special removable module (6) with a rechargeable battery (10). The module can be inserted in a charging and programming station (11) in which the battery is recharged and the data memory can be read and filled with new data. USE/ADVANTAGE - Balance can be operated in explosive area with no cable connections at all yet enables data to be transferred to equipment outside the explosive area. The convenience of battery power is also provided.
Patent DE-4123008-A1 (DE)
Title: IR cordless telephone system - uses cooperating IR transceivers with duplicated transmission and reception elements for improving transmission quality
Inventor: STEIN KARL-ULRICH DR
IPC: H04B10/114
Filed: 1991-07-11
Abstract: The IR telephone system has at least one base station (Bn) and at least one associated sub-station (SuBnx). Each base station (Bn) or sub-station (SUBnx) has a stationary optical transceiver (OFSE) for transmission of IR signals to and from a cooperating transeciver (OUSE) within a portable telephone handset (4). The base station (Bn) and/or the sub-station (SUBnx) and each handset (H) has a number of transmisson elements (SS1,..SSM; HS1..HSM) and reception elements (SE1..SEM; HE1...HEM) covering the same space (Rn), exhibiting similar spatial transmission and reception characteristics. ADVANTAGE - Improved transmission quality of interface between adjacent reception zones.
Patent DE-4124178-A1 (DE)
Title: Superfinishing machine for cylindrical workpieces - has workpiece supported between two rotating drive rollers causing opposing moment of drag to that in processing area so increasing friction force
Inventor: NAGEL WOLF DIPL ING
IPC: B24B35/00
Filed: 1991-07-20
Abstract: The workpiece (2) is centrally supported in drive rollers (8,9) which have a gap slightly less than the workpieces diameter. To permit high finishing speeds, especially in the presence of cutting fluids, methods of increasing the friction force must be applied. The surface (3) of the workpiece is in contact with the drive rollers forming a friction contact area (10). A moment of drag is defined here which is higher than that in the processing area (5). Due to the opposing moments of resistance, the friction force is increased. ADVANTAGE - Higher machining performance and better work quality.
Patent DE-4130042-A1 (DE)
Title: Catheter guide wire for drainage or perfusion - has manipulatable spring coils to allow fluid passage
Inventor: IMHOF HANS A
IPC: A61M25/00
Filed: 1991-09-10
Abstract: Guide wire, partic. for a drainage or perfusion catheter, has a tip (1) and a tubular section (2) attached to the end remote from the tip, through which a manipulating unit (4) passes. The guide wire tip comprises a spiral wire spring to which a hemispherical end (7) is welded at the tip. External manipulation, the spring windings are relaxed to allow fluid to pass through. ADVANTAGE - Precise control of drainage or perfusion of fluids.
Patent DE-4130827-A1 (DE)
Title: Electrical rocker activated electromechanical switch - has movable contact at tip of arm support on U=shaped spring providing high contact force
Inventor: BIRK ANDREAS
IPC: H01H23/12
Filed: 1991-09-17
Abstract: An electromechanical switch has a circuit board (10) with locations for mounting the main body (2) of the switch. A pivot pin location is provided for a rocker pad (A) used to open and close the contact (21,20). One of the contacts (21) is a fixed pad of the surface of the circuit board, while the other is at the end of a carrier plate (17) supported on a U-shaped spring (26). When the rocker tip (16) is on one side of the support (30) the contacts are held closed. In the other position the contacts are open. ADVANTAGE - Few components, high contact engagement. Lays down welding even after many switching operations.
Patent DE-4135015-A1 (DE)
Inventor: HOGUE JOHN H
IPC: G10C9/00
Filed: 1991-10-23
Abstract: The invention relates to a method for constructing and tuning a musical instrument. It relates to the tuning of a musical instrument having a sound board which is excited by a string, as for example a guitar, or by a percussive instrument, as for example a drum. The sound board is tuned by holding it in a position such that it can vibrate, it is struck to determine the real audible sound at the point struck and compare it with the desired sound, and material is added to or removed from the struck point in order to produce the desired sound. Application to the tuning of musical instruments. <IMAGE>
Patent DE-4142858-A1 (DE)
Inventor: SIMON MICHEL
IPC: H05H7/04
Filed: 1991-12-23
Abstract: The invention relates to an undulator or wiggler, i.e., a device generating a sequence of transverse magnetic fields along the path of an electron beam and allowing, in a free-electron laser, the direct conversion of a portion of the energy of a beam of relativistic electrons into light energy. The undulator comprises a magnetizing circuit constituted by an electrical conductor which forms meanders along the path of the electron beam and in which a high excitation current flows, and a cooling system that evacuates the thermal energy dissipated by the excitation current in the meanders of the electrical conductor. Advantageously, the electrical conductor with meanders is made up of two superposed parts (210 and 211) forming meanders with a  pi -shaped rectangular contour, and the cooling system is formed by an array of pipes with a flowing fluid. <IMAGE>
Patent DE-4143209-A1 (DE)
Inventor: HOEFFLINGER BERND
IPC: H01L27/02
Filed: 1991-12-30
Abstract: The description relates to an integrated circuit with at least two active components such as transistors, having the following features: there is a highly conductive substrate connected to one pole of a power supply; on one main surface of the substrate is applied a semiconducting layer which is electrically insulated from the substrate and divided into individual regions by lateral insulating regions; an active component, e.g. a transistor of any type of conductivity, is fitted in each of the regions; lateral deep diffusion regions in a semiconducting layer form a conductive connection between the highly conductive substrate and the corresponding regions of the active components.
Patent DE-4200287-A1 (DE)
Title: Item-mounting arrangement for painting - has profiled guide for travelling component with support for item
Inventor: LEU ERNST
IPC: B05B13/02
Filed: 1992-01-08
Abstract: The mounting is partic. for securing items to be painted. Its support comprises one or more profiled guides (2) fixed to the supporting portion (1,1'), and inside whhich one or more guide components (4) travel. Each of these has a holder (10) with supporting surface for the item to be painted. The holder can be a C-shaped bracket with connecting component to the guide component. The guide can have a central slot in one of its horizontal faces, running parallel to its axis. ADVANTAGE - Accommodates items of different sizes and largely avoids their contamiantion by paint residue.
Patent DE-4201843-A1 (DE)
Title: Polyethylene@ bottle for transporting heating  oil - is dipped in sealing fluid and used as fuel additional to contents
Inventor: WOLF OSKAR
IPC: B05D1/18
Filed: 1992-01-24
Abstract: Bottles for transporting heating oil are gripped at the neck on a continuous conveyor and dipped into a sealing fluid to make them gas tight. The fluid container is pref. raised to the bottles but for small bottles the conveyor can be lowered towards the fluid. The bottles have a conical base to allow close stacking. Polyethylene bottles for transporting heating oil are gripped by the neck and dipped into a sealing fluid such as lacquer or wax. They have a conical base so that they can be closely stacked in a container which takes up little room when returned empty. The bottles are regarded as additional fuel which is available in addition to their contents. The prod. is considered economical for selling in retail outlets. USE/ADVANTAGE - The bottles are intended to be burnt together with their contents so that their calorific value is utlised and the costs of recycling are avoided.
Patent DE-4203665-A1 (DE)
Title: Poly:halogenated dibenzo:dioxin and dibenzofuran cpds. removal from solids - with prods. obtd. in powder or granule from by extn. with inert organic solvent and dehalogenation and redn. with alkali metal
Inventor: NOLDE JUERGEN
IPC: C07D307/91
Filed: 1992-02-08
Abstract: Dehalogenation and redn. of polyhalogenated dibenzodioxins (IA) and polyhalogenated dibenzofurans (IB) present in powdery and/or granular solids (II) is carried out by reaction with alkali metal, pref. Na. The process comprises: (a) suspending (II) in an inert organic solid (III); (b) continuously extracting (I); (c) removing (II) by filtration and washing with (III); (d) mixing the filtrate and washings and drying by heating and/or chemically; and (e) mixing and reacting the dry organic soln. with the alkali metal (IV). Pref. (II) is milled. (II) is suspended in (III) in a circulating reactor at 10-80 deg.C, with a stirrer operating at 1-5 in/s. Extn. is carried out in the presence of an extn. aid. USE/ADVANTAGE - (I) are destroyed in the liquid phase and any water extd. can be sepd. by azeotropic distn. before dehalogenation or by reaction with excess (IV). The process is suitable for long-term continuous operation and is very safe. It avoids the prodn. of waste gases or waste liquor requiring purificn./or
Patent DE-4211679-A1 (DE)
Title: Lifting forks for suspension from crane hook - has collars holding forks on cross-beam strengthened by welding U=section reinforcing piece between front and rear walls of collar
Inventor: KINSHOFER ALFRED DIPL ING
IPC: B66C1/24
Filed: 1992-04-07
Abstract: The forks (8,9) have collars (10) fitting round a rectangular section cross-beam (2). The cross-beam forms part of a welded triangular frame with inclined struts (3,4) and a top bracket (5). A pillar (6) with a top cantilever (7) can be fixed in the bracket at an adjustable height from the forks. To strengthen the collar, which is a weak point in the conventional design, an inverted U-section reinforcing piece is welded between the front and rear walls of the collar. In an alternative design the reinforcing piece is secured by bolts. ADVANTAGE - Life of forks is increased.
Patent DE-4212582-A1 (DE)
Title: Prodn. of gravure printing cylinders - comprises providing a metal (alloy) protective layer on the cylinder surface before the gravure process
Inventor: SERMUND GERALD
IPC: B41N3/00
Filed: 1992-04-15
Abstract: Prodn. of printing cylinders (especially for intaglio printing) involves use of an electron beam to produce surface hollows on cylinder blanks. Before the gravure process the surface of the cylinder is provided with a mechanically resistant protective layer (40) within which the hollows (40) are produced. The hollows (41) penetrate through the protctive layer (40) into the cylinder surface region. The protective layer is made of a metal, preferably chrome, or a metal alloy such as a chrome-vanadium alloy. After the gravure process the cylinder surface is smoothed by removal of the material (42). The cylinder underneath the protective layer (40) is provided with a copper layer (39). USE/ADVANTAGE - An improved and simplified process is provided.
Patent DE-4219352-A1 (DE)
Title: Two-shell gripper mechanism - has shell side walls swivelable in support and has shell support side walls formed by hollow profiles
Inventor: KINSHOFER ALFRED
IPC: E02F3/413
Filed: 1992-06-12
Abstract: The gripper has two shells whose side walls are pivotally mounted in a shell support (28). The shells carry actuating levers, on whose ends are linked the piston rod and the cylinder respectively of a hydraulic ram. The support side walls (32) are formed by hollow profiles (34). Pref. a coupling rod extends in one hollow profile. The shells are coupled each to a connecting tube via lever between the support side walls. They are pivotally mounted bolts (36) at the shell support side. USE/ADVANTAGE - For cranes, excavators etc. with simple, stable design.
Patent DE-4223532-A1 (DE)
Inventor: MEYER PETER
IPC: G11C29/00
Filed: 1992-07-17
Abstract: The memory has storage elements located at the intersection points of rows and columns (15,19) and addressed via a multi-bit address fed to a decoder circuit having row and column decoders (12,14), controlling selection switches (16). Each row line (15) is coupled on the side of the matrix opposite to the row decoder (12) to a different line of a test bus (21). Each column line (19) is coupled to one line of the test bus on the side of the memory matrix opposite to the selection switches (16). Pref. the row and/or column lines are coupled to the test bus via respective test switches (20,22), controlled via a common test signal.
Patent DE-4226253-A1 (DE)
Title: Protective cover for refuse container - provides outer display surface round container to protect against damage and allow labelling.
Inventor: LOEBBERT FRANZ-JOSEF
IPC: B65F1/14
Filed: 1992-08-08
Abstract: The cover has a large display surface (10) covering and protecting the container walls (2,3). The cover can be transparent set at a distance from the walls. It can engage round several vertical walls like a sleeve. An upper seal (11) can be provided between the lid wall and display face. The cover pref. has a holder for a name plate. The cover can be designed in figure shapes, can be made in one piece and can fit over the container lid as well as over the walls. USE/ADVANTAGE - Protective cover for wheeled refuse bins provides decorative appearance.
Patent DE-4226661-A1 (DE)
Title: Optical information input esp. for electronic music prodn. - involves control of instrument by photoreceiver of signal from reflector movable within sweep of deflected laser beam
Inventor: FOERSTER FRIEDRICH
IPC: G10H1/34
Filed: 1992-08-12
Abstract: The data input method involves deflecting the beam (2) from a laser (1) by a pivotable mirror (3) at high speed within a predetermined spatial angle including a rod (7) or similar object. The retroreflection is diverted by the mirror instantaneously to the photosensitive element (6) of a receiver (5). The mirror is pivoted by e.g. a galvanometer movement subject to a controller which knows at every instant the positions of the mirror and beam. The relationship between the position of the rod and the command issued to the electronic musical instrument is stored in a look-up table or data bank. ADVANTAGE - The instrumentalist enjoys more freedom in the type of input and can play without contact with the instrument.