baber/WOPTO huggingface dataset:
Patent DE-3842991-A1 (DE)
Title: Aircraft integral tank composed of electrically conductive composite material layers
Inventor: WENTZEL HANS-PETER
IPC: B64D45/02
Filed: 1988-12-21
Abstract: In the case of an aircraft integral tank composed of electrically conductive composite material layers, especially of CFC, the layers are fastened to one another via screw connections, each nut having a cap as protection. In order to provide spark protection which is of simple construction and can easily be installed, each screw connection has an insulating and sealing lip, in the form of a collar, in the region in which the screw emerges from the composite material layers, which collar is constructed as an electrically insulating layer and is arranged at least in the contact region of the nut. The insulating and sealing lip consists of a tracking-resistance and pressure-resistant plastic and is integrated in the nut, except for an axial sealing attachment.
Patent DE-3901152-A1 (DE)
Inventor: HEIDEL PETER DR
IPC: D04H1/64
Filed: 1989-01-17
Abstract: A carrier web of a sheet-like fiber material consisting of a glass fiber mat and a mat of synthetic fibers, which and are needled together and are end-consolidated with a polymer-free low-formaldehyde melamine-formaldehyde precondensate, and a process for its preparation are described. The carrier web is preferably end-consolidated with a melamine-formaldehyde precondensate which is partly etherified and/or sulfamate-modified.
Patent DE-3906893-A1 (DE)
Title: Digital phase corrector
Inventor: VOLLNHALS FRIEDEMANN DIPL ING
IPC: H03H17/08
Filed: 1989-03-03
Abstract: Digital phase locked loops (PLL) require digital phase correctors which have previously contained a controlled frequency divider which was fed with a comparatively very high oscillator frequency. According to the invention, a digital phase corrector is proposed which contains a controlled change-over switch which switches between the inverse and non-inverse cycle of the oscillator frequency and, as a result, generates a phase shift in the output signal of half a cycle period of the oscillator frequency.
Patent DE-3909866-A1 (DE)
Title: Surgical instrument with grip part
Inventor: VOGEL MAX
IPC: A61B17/00
Filed: 1989-03-25
Abstract: Surgical instrument, especially microsurgical scissors or forceps, has a grip part and at least one gripping surface which extends over at least part of the grip part and has increased friction relative to the adjacent sections of the instrument. This instrument is improved in that the gripping surface (8) is designed as roughening with small protuberances and depressions of different dimensions arranged closely beside one another and arranged irregularly in the dimension.   <IMAGE>
Patent DE-3911588-A1 (DE)
Title: Device for shutting off gas supply lines to ensure safety
IPC: F16K17/38
Filed: 1989-04-08
Abstract: A device for shutting off gas supply lines, especially domestic supply lines, to ensure safety has a shut-off valve arranged in the line. This valve has a valve element, an operating shaft and a handle mounted on the latter. The handle consists of a part connected positively to the operating shaft and of a supported actuating part which is connected to the aforementioned part by way of a locking means that includes a thermal release element. The first part is subject to the action of an energy storage means that rotates the operating shaft into the closed position and the actuating force of which is released only on release of the locking means by the thermal release element. At least one sensor for recording a measured variable representing a safety risk is provided and the thermal release element is assigned an electric heating element which lies in a circuit controlled by the sensor.
Patent DE-3913822-A1 (DE)
Inventor: KOEHNK DIETHELM DIPL ING
IPC: C04B11/26
Filed: 1989-04-26
Abstract: Residues comprising sulphur-containing substances are made to react in a circulating fluidised bed in the presence of water and oxygen. This oxidises the sulphite portions to sulphate and simultaneously cleaves CaCl2 to CaO and HCl by pyrohydrolysis. The gaseous HCl is immediately taken away, due to the low gas residence times. CaO reacts with the sulphur-containing substances to give CaSO4. This prevents any reverse reactions. Under these conditions, high-quality gypsum products which are low in chloride are produced at temperatures of between 500 and 650 DEG C. Moreover, the process makes it possible to use waste materials as sulphur, H2O or energy carriers. These waste materials are utilised in a manner which is harmless to the environment. In this manner, gypsum anhydrite which is low in chloride is prepared from spray absorption residues. The gypsum anhydrite produced can be rehydrated in a subsequent process step to give  beta -hemihydrate gypsum.
Patent DE-3918486-A1 (DE)
Title: Mineral wool felt prodn. - by treating fibre with polymeric phosphate, which is water-sol. before conversion to sheet, useful for high temp. insulation
Inventor: HOLSTEIN WOLFGANG DR
IPC: D04H1/4209
Filed: 1989-06-06
Abstract: Prodn. of a mineral wool felt involves producing mineral wool fibres (I) in a fibre sepn. aggregate, adding water and a water-soluble polymeric phosphate (II) and converting to sheet form. (II) may contain linear, branched and/or cyclic condensed phosphate units, pref. with an average chain length of ring size of over 3 phosphate units. Pref. (II) are linear phosphates with an average of 7 phosphate units and mixt. of phosphates with average chain length or ring sizes of 3-6 and with more than 7 phosphate units, adjusted to a pH not damaging the mineral fibres, esp. to pH 6-8.  (II) are in the form of alkaline earth and/or alkali, esp. Na salts. USE/ADVANTAGE - (II) acts as binder for (I). The felt is useful for insulation, esp. for high temp. applications, since it has good strength and contains little or no material leading to odour emission when first heated, in contrast to felts impregnated with organic additives and thermosetting resins.
Patent DE-3919628-A1 (DE)
Title: Capacitor start circuit for single phase induction motor - has two capacitors dimensioned to satisfy start and run condition with relay responding to rotor acceleration
Inventor: AKBAR SAMY
IPC: H02K17/08
Filed: 1989-06-15
Abstract: A single phase induction motor employs two phase shifting capacitors (5, 6) which collectively satisfy the differing requirements of a start and run condition via the action of a voltage operated relay (13, 14). A star connected motor winding (1, 2, 3) has a start capacitor (5) and auxiliary capacitor (6) connected in series across windings (1, 3). Relay operating coil (14) is de-energised at standstill leaving only capacitor (5) in circuit. As speed picks up, voltage (Uc) increases and relay (13, 14) operates to open normally closed contact (13) and thus insert capacitor (6). The reduced capacity of the combination is dimensioned to promoting a stable balance between full load torque and slip. USE/ADVANTAGE - Does not require customary capacitor switching devices, e.g., centrifugal or timer relays. Gives good performance, reliability and economy.
Patent DE-3923518-A1 (DE)
Title: Gear pump with externally meshing gears - incorporates control pipe for load sensing pressure
Inventor: WEIGLE DIETER DIPL ING
IPC: F04C14/26
Filed: 1989-07-15
Abstract: Gear pump with externally meshing gears (14,15) against at least one set of side surfaces a sealing body (26) lies in a slightly axially movable position, with the seal made of rigid material and following the contour of the inner space (11A). A control pressure (ps) acting as a load sensing pressure is transmitted via a control pipe to one (B) of two pressure fields (A,B) connectable by a set of valves with max. user pressure. USE/ADVANTAGE - Gear pump with a load sensing system which operates without the need for an expensive pressure balance.
Patent DE-3927713-A1 (DE)
Title: System for removing cylinder shaped articles - has motor driven extension arm with movable holders for articles
Inventor: SITTINGER WERNER
IPC: B65G59/06
Filed: 1989-08-22
Abstract: The system for automatically removing horizontally stacked goods such as bottles and cans from vertical magazine chutes uses a motor-driven, possibly remote controllable jib arm (14) with movable holders for the goods. The jib arm (14) contains two holders (15, 16) mounted vertically one above the other which alternately release the lowest article in the storage magazine whilst holding back the article above by a part of its circumference, and then vice versa hold back the lowest articles over a part of its circumference whilst releasing the article above same. Each of the two holders mounted vertically above each other at a smaller spacing than the cylinder diameter of the article rotates on a circular path set perpendicularly to the longitudinal axis of the cylinder whilst partially cutting the drop path determined by the gravitational force of the article.  The circular tracks are run thorugh synchronously but offset by 180 deg. USE/ADVANTAGE - Easy safe handling of the bottles and cans.
Patent DE-3928844-A1 (DE)
Title: Leaf spring for vehicle fixed axle with at least two leaves - has main leaf mounting loop lowered w.r.t. main leaf upper surface by kinking main and supporting leaf end sections
Inventor: RAUNEKER JOSEF DIPL ING
IPC: B60G11/12
Filed: 1989-08-31
Abstract: A leaf spring (16), supporting a vehicle fixed axle (18), has a main leaf (10) with one end rolled upwards to  form a mounting loop (20). At least one further leaf (12), extending to beneath this loop, supports the main leaf. Both leaves are kinked at their end sections (10',12'), to lower the loop axis (34) w.r.t. the upper flat surface (32) of the main leaf. USE/ADVANTAGE - The lower leaf spring mounting point improves the vehicle understeer.
Patent DE-3929474-A1 (DE)
Title: Setting video recording termination timing - using steps of timer selection, termination time sitting and termination in accordance with lapse of time
Inventor: SEONG WON JO
IPC: G11B27/34
Filed: 1989-09-05
Abstract: The system control microcomputer (107) executes a  stored main program (104) when the recording key or ERS function key of a remote controller (101) is actuated or the time and prevailing recording channel number are entered via a keyboard (109). The time of termination of the recording is shown on a Digitron electroluminescent display (108). If during execution of the main program the recording key or ERS function key is operated, the setting or variation is taken up by the ERS operating routine (105) and the termination time is stored in proper memory. The display (108) responds and a timer operation routine (106) is implemented. USE/ADVANTAGE - Duration of recording is easily altered at user's discretion by utilisation of ERS recording function.
Patent DE-3937705-A1 (DE)
Title: Integrated microelectronic resistance network contg. light resistors - replaces theoretical Ritter algorithm, e.g. for finding most direct, obstruction-free path between points
Inventor: BECKMANN JUERGEN DIPL PHYS
IPC: G06V10/10
Filed: 1989-11-13
Abstract: The integrated electrical resistance network has light sensitive resistors or resistors switched between conducting and non-conducting states by light. Two selected node points or one node point and the edge of the net can be set to two different voltages by electronic selection or addressing. The voltages of each selected node and its adjacent node can be applied to output signal lines by addressing. USE/ADVANTAGE - E.g. for robotic, for use in identifying most direct, obstruction-free path between two points in plane contg. obstructions. Theoretical Ritter algorith, is replaced by equivalent hardware implementation.
Patent DE-3938434-A1 (DE)
Title: Indirectly heated fluidised bed drier - has insulated chambers in housing forming heat exchangers connected to main one
Inventor: BECKMANN GEORG DIPL ING DR
IPC: F26B3/084
Filed: 1989-11-18
Abstract: The fluidised-bed drier is indirectly heated by a heat-exchanger. This is esp. of the straight-tube or plate type, through which a medium flows. The drier housing has at the bed chambers etc. forming heat-exchangers, and which are connected to  heating circuit of the main exhanger (3), which is mounted in the bed. The medium flows through them at constant temperature, and they are insulated, particularly on the outside, to prevent radiation losses. USE/ADVANTAGE - The fluidised - bed drier is indirectly heated and prevents heat losses and unnescessary heat stresses.
Patent DE-4005647-A1 (DE)
Title: Machine for comminuting wood residues - with knives on slowly running cylindrical rotor surface
Inventor: LINDNER MANFRED
IPC: B27L11/00
Filed: 1990-02-22
Abstract: A machine for comminuting wood residues has at least one slowly running cylindrical rotor on the surface of which are triangular or multi-angled knives (5) in the circumferential and axial directions. Counter-cutters are provided on the rotor carrier. The knives (5) are fixed on the rotor (2,2',2"), with one of their corner edges (7) running in the circumferential direction of the rotor. These point the way from the surface of the rotor (2,2',2"). USE/ADVANTAGE - Ensures good comminution of wood residues, and is relatively unaffected by nails or staples.
Patent DE-4025683-A1 (DE)
Title: Silicone paper bags for transportation of adhesives - have outlets in base and sides which are held away from container eliminating packaging residues
Inventor: JOISTEN JUERGEN JOSEF
IPC: B65D25/02
Filed: 1990-08-14
Abstract: Materials and partic. adhesives are transported in silicone-paper bags. Transporting containers have an outlet in the base and have an inserted component to hold the material, partic.  material which melts when heated and esp. adhesives. The sides of the inserted components are held at a set distance from the inside of the main container by a spacer material which when the material being transported is melted, changes into that material. Melting or softening pt. of the inner component material is above the temp. reached by it when it is filled with the transported material, the bases of the inner component and of the outer main container are sepd. by a spacer device. Pref.  material for transportation is a polymer mixed with a resin to form an adhesive. ADVANTAGE - Prod. dispenses with the use of silicone paper and eliminates packaging residues. Consequently handling is simple and disposal problems do not arise.
Patent DE-4027902-A1 (DE)
Title: Visual testing of PCB with mounted components -  using cross-stable, video camera and monitor reduces operator fatigue by showing sections of board contg. whole components
Inventor: HELMA HANS
IPC: G01R31/309
Filed: 1990-09-03
Abstract: A method of visually testing flat assemblies (1) with mounted components involves using a video camera (2), a monitor (4) and a cross-table (5) which positions the assembly under the camera under program control so that at least one section is shown on the monitor. Each section remains displayed on the monitor at least until the table has positioned the next section to be displayed beneath the camera. At least one component with its connectors is fully displayed in each section. USE/ADVANTAGE- The method reduces the likelihood of operator fatigue and hence the number of undetected faults. Tolerance checking is simplified.
Patent DE-4028917-A1 (DE)
Title: Rubbish bin lock with integrated fastening part -  has hinged clamp holder orscrew-on plate with lock
Inventor: ULSMID FRANZ
IPC: B65F1/16
Filed: 1990-09-12
Abstract: The method of measuring conductivity, esp. at defined points on the human skin, involves attaching electrodes, pref. to the extremities or to the body, and displaying the conductivity between the electrodes on a display and/or recorder. The inductive, capactive and Ohmic conductivity values are measured between pref. three generators and selective amplifiers. A common measurement value is integrated and the integral is displayed. ADVANTAGE - Considerably improved reproducibility and accuracy of indication of conductivity values to be achieved.
Patent DE-4033930-A1 (DE)
Inventor: BENECKE JUERGEN
IPC: F16J1/12
Filed: 1990-10-25
Abstract: The description relates to a device (10) for the intermittent application of a fluid to a substrate with a valve actuated by a pressure medium which opens a fluid chanel leading from an inlet (30) to an application nozzle (38) or the like in a controlled manner and has a valve needle (70) co-opoerating with a valve seat (36) which bears in coaxial array a piston (80) movable to and fro in a cylinder (42) in the direction of the axis of the valve needle (70) and having a central drilling through which the valve needle (70) passes. Thereby the piston (80) is shrunk on the valve needle (70) and there is a further intimate connection between the piston (80) and the valve needle (70) which is produced after the shrunk joint has been made.
Patent DE-4040295-A1 (DE)
Title: Fluid actuated lifting cylinder - has compressed air operated cushion located between two interconnected plates which are relatively parallel in quiescent condition
Inventor: JANSEN HORST
IPC: B66F3/35
Filed: 1990-12-17
Abstract: The compressed air operated cushion (3) located between two pressure plates (1,2) which are interconnected and lie parallel to each other in their quiescent condition. Between the cushion and plate edges is an edge section on both sides in which lift limiters (4) are fitted in addition to retractors (5) of equal length for returning the plates to their original position after release of pressure medium. USE/ADVANTAGE - Wood working, material handling, off-shore applications. Construction is simplified and the cost of precision machining is reduced without impairing functional performance.
Patent DE-4041462-A1 (DE)
Title: Continuous flow electrophoresis appts. - has coolant pipe for bottom electrode chamber running below elution chamber to dissipate heat generated
Inventor: PSARROS NIKOLAOS DIPL CHEM DR
IPC: G01N27/447
Filed: 1990-12-11
Abstract: The continuous-flow electrophoresis appts. has a cooling system for the bottom electrode chamber. This comprises a coolant pipe with unions, running below the elution chamber. ADVANTAGE - Dissipates heat generated when working and prevents excessive elution chamber temp.
Patent DE-4042445-A1 (DE)
Title: Machine tool observation window - generates higher air pressure between rotary pane and fixed frame surface
Inventor: REINHARD HEINRICH
IPC: B63B19/04
Filed: 1990-12-01
Abstract: The observation window is particularly for use in the protective cladding around the working area of a machine tool, having a fixed pane in a frame and a power-driven rotary circular one. A gap is formed between the panes, through which air flows when working. Means are provided (55, 58) to generate higher air pressure in the gap (56) between the rotary pane (5) and the adjacent frame surface (39). The pane edge can be mounted in a bursting or ballast ring (55), which has means (58) for generating an air current at the side towards the frame surfaces. ADVANTAGE - Simple, reliable, and reduced sensitivity to coolant, lubricant or flying chips.
Patent DE-4108028-A1 (DE)
Inventor: BECK ERHARD DIPL ING
IPC: B60T8/36
Filed: 1991-03-13
Abstract: The invention discloses a hydraulic aggregate for hydraulic control or regulating devices, in particular for braking pressure regulating devices in antilock braking systems or drive slip control systems for motor vehicles. To effectively reduce the noise level, which depends on the operating positions of the solenoid valves (3, 4), and propagation of the noise, the volume of hydraulic fluid which flows from the hydraulic fluid source (6) to the hydraulic fluid consumer (16) when the solenoid discharge valve (4) is opened is limited by a slide valve (2) incorporated in the valve holder (1). The slide valve (2) has an effective control edge (9) which reduces the flow of hydraulic fluid as a result of the lifting movement, which depends on the difference in pressure.
Patent DE-4108915-A1 (DE)
Title: Hydraulic medium supply device for servo steering - has variable displacement pump for normal supply, and smaller volume constant pump
Inventor: ALTMANN UWE DIPL ING
IPC: B62D5/32
Filed: 1991-03-19
Abstract: The device is for supply of pressure medium to a priority primary load circuit, and at least one auxiliary load circuit, e.g. servo steering in a motor vehicle. It has a first and a second fluid source, and associated priority valves. The first fluid source is formed by a variable displacement pump (16), which has a larger volume the constant pump (17), forming the second source. The control pressure connection (19) of this is charged by a second load pressure signal (43), and additionally by a first signal (36, 42) from the primary circuit (11). The second pirority valves (45) are regulated dependant upon the differential load pressure signal, which regulates the flow volume requirements in the primary circuit. The active pressure differential (32), to control the fist priority valves (23), is larger than the pressure differential (55) to control the second priority valves. USE - Hydraulic power supply for vehicle servo steering.
Patent DE-4114278-A1 (DE)
Inventor: ZICH EGON
IPC: B01D3/32
Filed: 1991-05-02
Abstract: The invention relates to a liquid distributor plate in heat exchange or mass transfer equipment or reactors having roughly horizontal liquid distributor channels arranged in the plate, which channels deliver the liquid downwards via orifices to fingers, from which the liquid flows off and/or drips off, in which 
 
  - one pot (5) or a plurality of pots, which receive the liquid exiting from the channel (1), are below the channel base (2), 
  - the fingers (11), which bend outwards, are attached or integrally formed at the bottom edge (9) of the pot wall, and 
  - above the fingers (11) in the pot wall, there are openings (6) through which the liquid passes outwards and flows downwards on the pot exterior wall to the fingers (11). 
 
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Patent DE-4114668-A1 (DE)
Title: Pulp supply on paper making machines - has distributor in pulsation damper with individual supply lines to narrow sections across machine
Inventor: SCHULTZ HANS-JOACHIM DR ING
IPC: D21F1/08
Filed: 1991-05-06
Abstract: A pulp supply is regulated to control the weight profile by incorporating a pulsation damper which divides the flow into separate streams across the width. A sufficient number of pipes are provided to give the required profile control, e.g. a separate pipe for 5, 100 or 150 mm width. Other distances can be chosen provided the pipes are of equal length. The usual dilution of the pulp at the mixing pump can be omitted. USE/ADVANTAGE - The invention improves the prod. uniformity in paper making machines and reduces the amt. of liq. which has to be removed on the wire.
Patent DE-4116155-A1 (DE)
Title: Heat quantity meter for heating or hot water system - has throughput meter and temp. sensor which responds to temp. changes with changes in shape or dimensions
Inventor: PRECH VACLAV DIPL ING
IPC: G01K17/06
Filed: 1991-05-17
Abstract: The heat quantity meter has a throughput meter (3) for the medium carrying the heat, with a shaft (4) rotating in proportion to the throughput. A temp. sensor (12) responds to temp. variations with changes in its dimensions or shape. One free end of the shaft acts rotationally on a cone wheel (7) and the variations in the dimensions or shape of the temp. sensor are transferred as translation motion of a thrust rod (10) carrying a rotor wheel (8). Rotations of the cone wheel are converted into rotations of the roller which is connected to a counter mechanism (17). USE/ADVANTAGE - Esp. for household radiator heating systems or systems which use hot water. Meter operates self-sufficiently and contains robust, simple, durable parts.