baber/WOPTO huggingface dataset:
Patent DE-3929278-A1 (DE)
Title: Dental examination equipment, visualising and recording - uses fibre=optic cable for imaging and illumination and supplying personal computer and/or printer
Inventor: EBERWEIN FRITZ-PETER
IPC: A61C19/04
Filed: 1989-09-02
Abstract: The dental equipment calculates indices for parodontitis, gingivitis and incidence of plaque. An upper and lower jaw camera covers an imaging angle of 90 to 110 deg. as well as a fixed viewing direction of 45 minutes. The plaque index is calculated and expressed in a standardised form and schematic prototype. A standardised and schematic status formulation is given for number and condition of teeth (position and state of fillings, crowns, bridges, teeth necks, exposed root parts, fissures etc.), gingiva and parostatus. Observation can be made by a v.d.u. of the PC for mouth cavity, bite as well as focussing onto separate teeth. A synthesised image can be stored on a diskette for documentation. ADVANTAGE - Systematic and comprehensive.
Patent DE-3931340-A1 (DE)
Title: Pneumatically testing sheath of heavy current cable - by sending natural gas under pressure along certain length between sheath and insulation
Inventor: BIEWALD HARTMUT DR ING
IPC: G01M3/22
Filed: 1989-09-20
Abstract: The cable is polyethylene insulated and not waterproofed along its length and has hollow spaces between its insulation and sheath. Sheath faults are located by a test gas. another to For the the trolley of the testing time one end is temporarily pneumatically sealed to section off a length (3) of pref. 300 m. Earth gas is pref. introduced by mobile equipment with a pressure reducer for controlling the feed pressure from a max.  of 150 kPa in dependence on the cable temp. to take into account the permissible expansion of the sheath which should not exceed 3%. A gas detecting appts. guided along the cable section has a sensor detecting escaping earth gas.  Gas leaks are located and sealed gastight. USE/ADVANTAGE - For newly laid cables.  Non-toxic gas can be used. Cable can be in generation.
Patent DE-3938299-A1 (DE)
Inventor: SAGNES OLIVIER
IPC: H01Q17/00
Filed: 1989-11-17
Abstract: The invention relates to a structure absorbing electromagnetic waves, comprising at least one element (1) formed by an alveolar spacer sandwiched between two films (2, 3) having an electrical conductivity gradient in their thickness. Application to shielding in the field of centri-metric waves. The spacer may be of honeycomb form and may be formed from an aramide resin impregnated with epoxy resin. The films may be of styrene/butylacrylate latex with polypyrrole made conducting by doping. <IMAGE>
Patent DE-3939905-A1 (DE)
Title: Angular position sensor - has mirror or object deflecting light beam to annular sensor
Inventor: KUGEL UDO DIPL ING
IPC: G01B11/26
Filed: 1989-12-02
Abstract: The angle transducer for determining the rotation position of a component wrt. a fixed arrangement contains a fixed light source (1), a mirror (4) mounted on the component (6) which reflects the light beam and a sensor mounted in the reflected light beam which detects the light beam position. The beam (7) from the source is parallel to the rotation axis (5). The mirror surface is inclined wrt. the light beam so that reflected light falls on at least one CCD based annular sensor arrangement (2) concentric wrt. the rotation axis. ADVANTAGE - Achieves high resolution angular position measurement.
Patent DE-3940976-A1 (DE)
Title: Heating radiator control system - uses transmission of digital control signals via HF carrier fed along current supply network
Inventor: ANDREE REINER
IPC: H02J13/00
Filed: 1989-12-12
Abstract: The control system uses the current supply network (10) for transmitting digital control signals from a central control point (ST) to a reception stage (E) providing an output control signal for the radiator (H). The control stage (ST) incorporates a further reception circuit for comparing the signals to be transmitted with existing signals received from the network (10) to prevent collisions. Pref. the transmission from the control stage (ST) is interrupted when a likely collision is detected, with the transmission re-instated after a defined interval. USE - For centralised control of heating radiators.
Patent DE-4002103-A1 (DE)
Title: Dispenser for powdery or pasty materials - has round container, with vanes sliding on its bottom under shaft drive
Inventor: MESER GEORG
IPC: G01F13/00
Filed: 1990-01-25
Abstract: The dispenser has a circular container (1) and several vanes (6a) in a star pattern, fastened to a drive shaft (5), and sliding on the container bottom (1a). The shaft has a drive (3,4) and there are openings in the container floor such that one opening at a time is covered by a vane. The container also carries a stationary wiper and distributor (10). ADVANTAGE - Facility for very small vol. dispensing.
Patent DE-4004248-A1 (DE)
Title: Seeing aid with head frame - has binoculars adjustable to different predetermined distances and for angle
Inventor: HEMMER FRANCISCUS GERARDUS MAR
IPC: G02C7/08
Filed: 1990-02-12
Abstract: The seeing aid comprises a frame placed on the head of the user and supporting a set of lenses such as adjustable binoculars. An adjustment sets the latter to two or more different distances, and a further angular adjustment for them is provided, so arranged that the optical axes pass in all settings through the centre about which the respective eyeball rotates.  A correction mechanism provides accurate focussing at each of the predetermined distances. ADVANTAGE - Usable both for reading and observation at a greater distance.
Patent DE-4004584-A1 (DE)
Title: Horizontal centrifugal slurry filter removes filtrate and cake - in sequence controlled by internal vibration-responsive sensors
Inventor: POESCHL SIEGFRIED
IPC: B04B3/00
Filed: 1990-02-15
Abstract: Slurry from a valved feeder enters one end face of a centrifuge filter rotating aobut a horizontal shaft, and builds up a bed of solids against the peripheral drum wall, detained by a filter fabric on a support mesh thorugh which filtrate travels to an integral colletor channel at the opposite end face. Collected filtrate is taken from the channel, to a container providing recovering liq. by a cranked pipe pivoted into suctional engagement with the channel contents. A sensor, pref. of source type, above the forming cake indicates that the supernatant liq. has reached its more-desirable height. Withdrawal of filtrate stops to be followed by extn. of the cake until the filter fabric is again exposed, whereupon the cycle re-commences. The sensors respond to vibratory changes in the pipes removing filtrate or cake. ADVANTAGE - Gases cannot enter below the filtration layers.
Patent DE-4014672-A1 (DE)
Title: Adamantane derivs. for cyto-protection of cells - protects infected and non-infected lymphocytes and other cells, and can be used in treating e.g. AIDs and ARC
Inventor: MUELLER WERNER E G PROF DR
IPC: A61K31/13
Filed: 1990-05-08
Abstract: The use of adamantyl derivs. of formula (I) and their acid addn. salts, for the ctyo-protection of non-infected and virus-infected lymphocytes and other cell types is claimed. In (I) R1 to R5 = H or 1-4C opt. branched alkyl. (I) are known cpds. (DE2219256, DE2856393, US4122193 and DE2232735). USE/ADVANTAGE - (I) is used to treat disease where lymphocytes suffer cytopathic changes (claimed). Diseases causing such damage include HIV and human T cell leukaemia/lymphotropic virus type III. Treatment is for patients with HIV, AIDS, ARC and lymphadenopathy-associated virus (LAV) infections. The dose is 0.01-100 mg/kg, pref. in an oral dosage form which reaches the intestines. (I) may be administered simultaneously with other antiviral agents, e.g. 3'-azido-3'-desoxythymidine. In an example, the rate of incorporation of 3H-dThd in mouse lymphocytes was measured after 5 days treatment with memantine (1-amino-3,5-diemthyladamantane), followed by killing the mice and incubating the lymphocytes in foetal calf serum. 3H-dThd was added to the culture medium. In untreated animals, the rate of incorporation was 1.47, with 1 mg/kg it was 1.98, and with 10 mg/kg it was 4.84, in units of 1000 counts/minute/million cells.
Patent DE-4024771-A1 (DE)
Title: Monitoring temp. of brake linings of motor vehicle - comparing measured lining temp. with limit value and associated stored values which are over-written if exceeded
Inventor: KLEIMANN ANDREAS DIPL ING
IPC: B60T17/22
Filed: 1990-08-04
Abstract: Monitoring the temp. of brake linings involves testing the temp.  of a first brake lining and comparing it with a predefined limit value. If the limit is exceeded an alarm signal is triggered. The measured temp. is compared with a value stored in a memory location associated with the tested brake lining set. The value in the memory location is overwritten if the value already stored is lower than the measured temp. value. The process is repeated for all brakes and the maximum temp. of each brake lining set stored. USE - Esp. for lorries. Enables detection of dangerous brake  lining operating temp.
Patent DE-4025281-A1 (DE)
Title: New organo-poly:siloxane prods. with terminal siloxane units
Inventor: STEPP MICHAEL DIPL CHEM DR
IPC: C08L83/04
Filed: 1990-08-09
Abstract: Organo(poly)siloxanes (I) with terminal siloxane units having organyloxy and hydrogen gps. are claimed.  Organo(poly)siloxane compsns. (II) crosslinkable to form elastomers by splitting off an alcohol, contg. at least one (I).  (1) Prepn. of (I) by reacting alpha, omega-dihydroxy organo(poly) siloxane of formula (1) with silane of formula (2).  In the formulae R, R1, R2 (same or different) = monovalent, opt. substd. hydrocarbon gp.; X = gp. readily split off; n = at least 2; a = 1 or 2. (2) Crosslinking (I) through moisture.  (3) Prepn. of (II) by (a) mixing together all constituents in any desired order (b) stirring at 15-80 deg C and 900-1100 hPa pressure for 20-90 mins.. (c) stirring further at 0.01-100 hPa pressure for 3-60 mins. rate of stirring being such that temp. of mixt. rises to level in range 15-80 deg C without addn. of heat.  (4) Prepn. of organopolysiloxane elastomers by crosslinking compsn. crosslinkable through addn. of Si-bound H in SiC-linked organic gp. with aliphatic C-C multiple bond and contg. at least one (I).
Patent DE-4026797-A1 (DE)
Title: Forming recombination centres in semiconductor component - irradiating semiconductor by ions of preset energy and diffusing recombination atoms
Inventor: WONDRAK WOLFGANG DR
IPC: H01L21/22
Filed: 1990-08-24
Abstract: The recombination centres are formed in a semiconductor component body by ion implantation. First the body is irradiated by ions of preset energy, followed by diffusing atoms as recombination centres into the body at least to the penetration depth of the ions. Pref. the diffusion temp. is so chosen that, in a preset semiconductor vol., the number of grid defects to be repaired is less than the number of diffused atoms.. Protons on helium cores may be used, and gold on platinum atoms may be used for diffusion. The ion energy is typically so chosen that the produced grid faults in vertical direction lie in a preset zone of the semiconductor body. USE/ADVANTAGE - For thyristors, diodes. Adjustment of minority change carries service life, with controlled recombination level and temp. stability.
Patent DE-4028304-A1 (DE)
Inventor: BARTELS ROBERT-JAN DR ING
IPC: B25D9/00
Filed: 1990-09-06
Abstract: Rotary impact drilling devices possess, as main components, an impact mechanism and a rotary mechanism, which can be operated individually or jointly as a function of the working conditions. To prevent unnecessary wear in particular on the impact piston and its sealing elements during purely rotary operation, the use of a stop element (31) is proposed, by means of which the impact piston (3) can be lifted off from the tool-insertion end (12) after the impact mechanism (1) has been switched off. The stop element (31) displaceable in the longitudinal direction of the impact piston is constructed and controlled in such a way that it assumes, as a function of the influenceable pressurisation, either an impact-operating position which is displaced in the direction of the impact-piston tip (3a) and in which the impact piston (3) can act on the tool-insertion end (12), or is displaceable, when subjected merely to a control pressure, in the direction of the return-stroke movement (arrow 21) of the impact piston (3) to such an extent into a rotary-operating position that the impact piston is gripped, carried along and thereby freed from the tool-insertion end (12). <IMAGE>
Patent DE-4028794-A1 (DE)
Title: Measuring installation choking waste water throughput - contains inductive flow meter, electrically driven slider and electronic controller
Inventor: BACHHOFER BRUNO
IPC: G01F1/58
Filed: 1990-09-11
Abstract: An arrangement for measuring and choking a waste water flow in the feed system of a cleaning plant contains a non-siphoning inductive flowmeter (5), an electrically driven slider (6) and an electronic controller. A rising pipe acting as a ram threshold arranged after the slider in the direction of flow is connected to the slider during operation or can be separated from it to free the entire flow cross-section. ADVANTAGE - Prevents formation of deposits which are difficult to remove. Minimises slider wear and enables continuous, accurate measurement.
Patent DE-4031668-A1 (DE)
Title: Reflector difference electro-optical measurement - reducing difference of propagation times from max. likelihood estimate of reflected and time-shifted signals
Inventor: ZIMMERMANN THOMAS DR
IPC: G01S17/10
Filed: 1990-10-05
Abstract: The computer (1) generates a pseudo-random binary sequence of pulses, whose min. width is given by the reciprocal of the chip frequency, for conversion (2) to analogue form for modulation of an optical transmitter (3). The reflections from both objects (M1,M2) are detected (7), digitised (8) and stored (10). The computer (1) performs its approximation by summing time-shifted versions of the signal corresp. to reflection from a single object in order to obtain the propagation times of the pulses. ADVANTAGE - Precise and unambiguous measurements are achievable even when transmitted pulse sequence has large subsidiary correlation peaks.
Patent DE-4033093-A1 (DE)
Title: Recharging nickel-cadmium battery from fully-discharged condition - determining discharge state from voltage-independent residual current for timing of recharge duration
Inventor: EDLER GERD
IPC: H01M10/44
Filed: 1990-10-18
Abstract: The battery (31) is connected in series with a current-measuring resistor (32) which supplies actual values of discharging or charging current to respective regulators (11,12). The discharge regulator (11) drives a fast switching circuit (12) with a monitor (41) and feedback control logic (42). The charging regulator (21) is timed (43) to pass a charging current within externally preset limits (E2). During discharge the residual current capacity is deduced from the measurement (32), and a prescribed quantity of electricity is supplied during the recharge period. ADVANTAGE - Discharge and recharge processes are simplified with currents measurable irrespective of the number of cells.
Patent DE-4038301-A1 (DE)
Title: Suppressing motor vehicle bodywork vibration by alternator excitation - pulse width modulating field current supplied by proportional controller comparing measured and desired accelerations
Inventor: MASHINO KEIICHI
IPC: F16F15/18
Filed: 1990-11-30
Abstract: The vibrational wave detected by an accelerometer (31a) is filtered (31b) with a passband of e.g. 5.5 Hz for comparison with a preset desired acceleration value.  The difference gives rise to proportional control (40) of the field current of the alternator (10) by pulse-width modulation (40a). The field current varies approximately in phase with the vibration so that the alternator (10) generates electric power to absorb the mechanical energy.  Loading (29) is regarded as an external disturbance of the driving system. ADVANTAGE - Vibration esp. under acceleration is suppressed effectively by absorption of energy in alternator.
Patent DE-4039363-A1 (DE)
Title: Lock for bolting cabinet push doors - has spring clack nut firmly connected to lock
Inventor: GEMUENDEN RENE
IPC: E05B65/08
Filed: 1990-12-10
Abstract: The spring clack can be produced with a length as required, and can accommodate the lock at any desired position. It ensures that multiple-doored push door cabinets can be closed with a min. number of locks as typified by the following table:- 2 door push door cabinet 1 lock 3 -do- 1 lock 4 -do- 2 locks 5 -do- 2 locks 6 -do- 3 locks 7 -do- 3 locks The spring clack guarantees an easy operation unhindered by frictional resistance, is adaptable to any type of cabinet push-door arrangement, and can be fitted in a door clearance of 6-8 mm. USE/ADVANTAGE - For single and multiple-doored push door cabinets, as a lock arrangement which is secure against break-in, even with high doors.
Patent DE-4039985-A1 (DE)
Title: Contact bridge esp. for vehicular steering-column switch - guarantees reliable contacts at ends with relatively high pressure in central region of semi-rigid bridge
Inventor: VOGEL XAVER
IPC: H01H1/36
Filed: 1990-12-14
Abstract: A two-armed leaf spring (35) has inner and outer contact surfaces (47,48) on each arm (39,40). Its central section (38) is bent in the opposite direction and both of its longitudinal edges (e.g.51) are curved towards the contact surfaces (47,48) to merge into the bends (49,50) in the longitudinal edges of both arms. A central hole (37) enables the bridge to be secured to a pin extending at right angles from the end of a support. ADVANTAGE - Bridge is sufficiently rigid to avoid deflection of outer contact surfaces, but elastic enough to maintain the necessary pressure.
Patent DE-4100148-A1 (DE)
Title: Pallet for transporting cylindrical workpieces - incorporates pairs of sliding jaws to grip workpieces
Inventor: HOLY FRANZ
IPC: B23Q3/10
Filed: 1991-01-04
Abstract: Cylindrical workpieces, such as parts of chucks, are transported between work stations on pallet. Each pallet is provided with a number of pairs of jaws which can be moved relative to each other by means of a screw drive. One member (6) of each pair of jaws has V-shaped recesses with an included angle (alpha) which is pref. equal to 60 deg. The other member (5) of the pair has flat topped projections which press the workpiece (17) into the V-shaped recess of the first jaw (6). The jaws can grip workpieces of different diameters and the workpiece centre-lines are held in the same position irrespective of the diameter of the workpiece. This is achieved by moving the first jaw (6) through twice the distance moved by the second jaw, when adjusting the positions of the jaws to suit workpieces of a different dia. USE - Transport of workpieces.
Patent DE-4100584-A1 (DE)
Title: Speed-measuring arrangement for miniature DC commutator motor - employs proportionate AC component of commutated current in speed regulation circuit with adjustable set-point value
Inventor: FISCHER KLAUS
IPC: H02P7/298
Filed: 1991-01-11
Abstract: The motor terminals (3,4) are connected by  polarity reversal relay (9) to a DC isolating transformer (13) through  the AC component of motor current switched by a power transistor (10) is taken to the circuit. The desired motor speed is set by choice of Zener diode (19) inserted between the rectifying circuit (14-17) and DC amplifier (22).  The set-point device (21) in its simplest form is a step switch. The gain of the control circuit determines the constant speed maintained with variable torque. ADVANTAGE - Motor itself serves as speed sensor requiring no additional wiring.
Patent DE-4111108-A1 (DE)
Title: Fibre-reinforced hollow profile for knitting machine - has female threaded inserts in foam mandrel around which fibre-reinforced plastic bands are wrapped
Inventor: MOELLER BERNHARD DIPL ING
IPC: D04B27/24
Filed: 1991-04-05
Abstract: A closed, hollow profile section is mfd. in fibre reinforced plastic which forms a support with attachments for various other components. The profile comprises resin impregnated bands of woven or similar fibre mat which are wrapped on top of each with overlapping ends. Wrapping occurs over a shape defining mandrel. Mandrels with arc retained in the profile after mfr. are formed in rigid foam and have recesses holding fixings with female threads. Openings in the hollow profile correspond with the threaded components. USE/ADVANTAGE - The profiled section is used as a support bar in a knitting or weaving machine and has increased stiffness compared to bars reinforced with short fibres
Patent DE-4112535-A1 (DE)
Title: Maleimide copolymers prepn. by imidising maleic anhydride copolymer - through reaction with prim. amine in a phenol, used for crosslinking amine(s) having more than one prim. amine gp.
Inventor: FRIEDEL PETER
IPC: C08F8/32
Filed: 1991-04-17
Abstract: The copolymers (I) are prepd. by reacting a maleic anhydride copolymer (II) with prim. aliphatic or aromatic amine in opt. substd. phenol (III) as solvent. More specifically, (III) is a cresol. Amine is formed in reaction mixt. by hydrolysis, partic. from azomethine. (III), which may be a diphenol, is incorporated as polymer building block in subsequent reaction, partic. as phenol-HCHO resin or polycondensate. ADVANTAGE - Method does not require use of special appts. or pressure, and is of wide application for e.g. (1) crosslinking (II) using amines contg. more than one prim. amino gp., and (2) prepn. of anionic (I) using aminoacids of (I) contg. alcoholic or phenolic OH gps. in side chains by using aminoalcohols or aminophenols, and of unsubstd. maleimide-contg. (I) using NH3 instead of prim. amine.rea
Patent DE-4116648-A1 (DE)
Title: Self-cutting trocar insertable in sleeve for penetrating abdominal wall - has manual or motor driven cutting tool so hat power which is normally not used for inserting trocar is considerably reduced and insertion can be controlled
Inventor: WURSTER HELMUT DIPL ING
IPC: A61B17/34
Filed: 1991-05-22
Abstract: The cutting tool (3,29,36) cuts the tissue in the longitudinal direction of the trocar. A circular shaped cutter (3) is fitted in the conical part of the trocar (1), which can be moved in the longitudinal direction of the trocar axis, and in the rest position the cutter lies completely in the slot (4), and a return spring (11) with non-operation automatically brings the cutter in to its rest position. The circular cutter (3) with its drive forms a unit, which can be moved longitudinally in the trocar, and is driven by a removable motor unit (10). One or more openings (12) end in the distal conical part of the torcar, which lead proximally to a gas supply connection (20), to which a gas flow sensor (60) can be connected for penetrating the abdominal wall. ADVANTAGE - Further jerky type penetration of trocar by force of operator still maintained after piercing of abdominal wall is prevented. Wounding danger existing with still used trocar is lowered by reducing force acting on trocar.
Patent DE-4117901-A1 (DE)
Inventor: STECKEL HORST
IPC: B65G21/00
Filed: 1991-05-31
Abstract: A supporting framework (1) for belt conveyors (11), especially for closed belt conveyors (11), which can be interconnected. Each section (1) which is formed from a multiplicity of sections (1) is formed from a tube (3) which may be continuous or composed of a plurality of segments connected to one another and the end regions (21, 30) of which are provided with supports (4) which are displaceable on floor foundations. Above the tube (3) a continuous catwalk (14) is provided, which is displaced in relation to the tube (3) by means of gusset plates (25, 28). In the free region of the catwalk (14), a multiplicity of vertical rods (10) are provided, which serve to receive the sets of support rollers (12) for guiding the belt conveyor (11), especially the closed belt conveyor (11). The tube (3) is provided with undertensioning (2) or overtensioning (19) to permit great lengths. <IMAGE>