baber/WOPTO huggingface dataset:
Patent DE-4000108-A1 (DE)
Title: Low voltage lamp overheating protector - compares lamp current with set manned current and set deviation outside given range
Inventor: BECK MARTIN
IPC: H05B37/03
Filed: 1990-01-04
Abstract: The arrangement has a variable resistor (5) and a setting switch (3) to set the wanted current, both located in the low voltage lamp's (1) circuit. The working current flowing in the lamp's circuit is measured (15). The measured current is compared (6) with the wanted current.  A current detector (7,8) following the comparator opens (2) the lamp circuit when overloading or underloading occurs. The setting switch (3) may be a pushbutton.  The variable resistor may be a potentiometer. The current detector has two circuits with different specified response thresholds. The outputs from these two circuits pass via a summation circuit (9) and a  start switch (10) to the breaker (2) that opens the lamp's  circuit. ADVANTAGE - Avoids overheating.
Patent DE-4000146-A1 (DE)
Title: Discharge nozzle in disposable hypodermic syringe is inclined - relative to cylinder end face
Inventor: HAUCK MARTIN
IPC: A61M5/28
Filed: 1990-01-04
Abstract: A throw-away hypodermic syringe for extracting blood or for injecting material into the vein has a standard cylindrical barrel holding a plunger. The discharge/collection nozzle, with its round cross-section for piercing the blood vessel is at an angle of less than 90 deg. to the end face of the barrel. ADVANTAGE - With the user holding the syringe in fountain pen manner as though writing on the patients skin, one-handed operation is simple.
Patent DE-4003506-A1 (DE)
Title: Machining method by swarf removal - uses cutting edges at different feed rates and cutting speeds
Inventor: SCHAEPERMEIER EGBERT DR ING
IPC: B23B51/02
Filed: 1990-02-06
Abstract: The method of swarf removal uses a tool with two or more cutting edges of predetermined length and fed forward at a predetermined speed. The edges engage with the work at different cutting speeds. Dependence of the feed force related to the edge length on the cutting speed is determined by a characteristic curve having a first flat portion for low cutting speeds, a second steeply rising one for medium speeds, and a third falling one for high speeds. There are different characteristic curves for different feed rates. The cutting edges are used at different feed rates (s). A first edge at low cutting speeds works over the first portion (15h) of a first curve (11h). A second edge works at high cutting speeds over the third portion (17e) of a second curve (11e). ADVANTAGE - No cumulative cutting action over entire cutting edge length.
Patent DE-4006547-A1 (DE)
Title: Welding plastic tube to moulding - uses appts. with moving grips to hold tube and moulding respectively and has heater which can be moved between them
Inventor: TROESCH PAUL
IPC: B29C65/20
Filed: 1990-03-02
Abstract: Appts. for welding a plastic tube to a plastic moulding has two locking devices which can be moved along slides to hold the tube or mouldings, and a heater which can be swung round into position between the two devices.  Device(s) has a replaceable support for the mouldings, the contour of this support being at least part of moulding(s). ADVANTAGE - System enables widely different mouldings to be positioned perfectly (also axially) without being deformed by the locking devices.
Patent DE-4006973-A1 (DE)
Title: Utilisation of the energy of sea waves - by devices which stir up sand to rebuild sand dunes
IPC: F03B13/00
Filed: 1990-03-06
Abstract: The device proposes to use the wave power to impart an oscillating motion to the piston of a pump. This pump is connected by a hydraulic circuit to a device which stirs up the sand and rebuilds the damage dunes. Several wave actuated devices may be connected to a common hydraulic circuit.
Patent DE-4011428-A1 (DE)
Title: Bio-catalyst substrate concn. determn. - based on potentiometric and amperometric cell with bio-tensions
Inventor: KUEHN MANFRED DR
IPC: G01N33/487
Filed: 1990-04-09
Abstract: An automatic quantitative determination of substrates in biocatalysts for use in chemistry, biochemistry, pharmacy, medicine and environmental protection is based on potentiometric and amperometric enzyme electrodes or biosensors. A computer-aided calibrating and differential measuring system (1) is joined by an A/D converter (2) to a control/evaluator (3) for a quantitative evaluation of potentiometric and amperometric measuring signals. The unit (3) has a clock (18), a timer (19), a procedure control (20), a sample identification (21), a calibration control (22), a readings recorder (23), a processor (24), a temporary storage (25), an ON-system for sensors (26) and a current supply (29). The unit (1) includes the test solution (11), a feed proportioner (10), the cell (5) with the system of biosensors (7), two sensors (15, 16) and a reference sensor (17). ADVANTAGE - This minimises manual labour for measuring and controling and evaluating; it also improves the precision, reliability and rapidity.
Patent DE-4011835-A1 (DE)
Title: Still image signal generating circuitry using digital TV signal - has half picture memories and digital processing under central processor control
Inventor: RIBBACK RAINER
IPC: H04N5/937
Filed: 1990-04-12
Abstract: The still picture generator receives an analog TV signal from a TV tuner or video camera to supply an a-d converter (1) for alternate line storage in 'half picture' memories (2, 3) for output through an adaptive filter (5) to a change-over switch (6) cyclically switching the half-image  signals supplied from the memories. A processor (4) controls all the circuits except the a-d converter. Alternate lines are stored in the 'half picture' memories (2, 3). The adaptive filter (5) processes the data from the memories (2,3). Picture generation is achieved by the change-over switch (6). USE/ADVANTAGE - Still picture from TVs; better vertical resolution.
Patent DE-4012931-A1 (DE)
Title: Self programmable electronic ID card and programming device - allows user to limit time of usage and enter own pin no
Inventor: SCHREIBER HANS DR DR
IPC: G06K19/077
Filed: 1990-04-24
Abstract: The card (1) contains a keyboard (4), two microprocessor chips (2,3), displays (8,9) and a battery/solar cell (5). Like existing cards it could be used in cash dispensing machines and other devices. Users of the card can re-program their PIN number or limit the useage of the card by time. ADVANTAGE - Increased security.
Patent DE-4013488-A1 (DE)
Inventor: ZIEGLER HERBERT
IPC: G01R1/36
Filed: 1990-04-27
Abstract: 2.1 When checking devices of protection class II, the stray current must be measured between contactable conductive parts and earth. If there is a low-resistance connection to the mains, a current limiting element (R1, S1) protecting the measuring instrument will respond and there is then no display signalling the fault case. 2.2 In order to obtain an overcurrent indication in spite of the current reduced in the measuring circuit (R1, R2, V3, V4, R5), a shunt branch (V1, V2, R3, R4) is formed which bypasses the current limiting element (R1, S1) and, when a limit value is exceeded, supplies the input (C, D) of a measuring device (M) with a signal which produces an overflow indication. 2.3 The measuring circuit is basically suitable for all current measurements in which a hazardous voltage must be expected as is the case, for example, in stray current measurements. <IMAGE>
Patent DE-4013991-A1 (DE)
Title: Electrical appts. housing for circuit board modules - has U=shaped profiles providing opposing sidewalls receiving vertical guide rails
Inventor: WOERNER HELMUT E
IPC: H05K7/14
Filed: 1990-05-01
Abstract: The housing uses interchangable components providing a top wall (3), a bottom wall (4) and opposing sidewalls (2). Each sidewall has a U-shaped cross-section, the opposing side arms (11) providing profiled guide channels (15) for reception of guide rails (19). Pref. the sidewalls (2) are provided by metal or plastics material profiles. The housing may have a rear panel and a metal front panel which is held in place by magnetic catches. ADVANTAGE - Simple adaption for different requirements.
Patent DE-4020914-A1 (DE)
Title: Gas purificn. by converting ammonia to nitrogen using catalyst - contg. noble metal and transition metal oxide e.g. for purifying waste gas from soda mfr.
Inventor: BISCHOFF MICHAEL DIPL ING DR
IPC: B01J23/56
Filed: 1990-06-30
Abstract: Removal or redn. of the NH3 content of gas, with selective formation of N2, is carried out by contacting the gas at 20-500 deg.C with a catalyst (I) contg. a catalytically active mixt. (II) of noble metal (IIA) and transition metal oxide (IIB) in 1:(10-200) molar ratio, (IIA) being Pt, Pd, Rh and/or Ir and (IIB) Mo and/or V oxide. Pref. the gas contains O2 and ca. 100-40000 ppm NH3. (I) consists of 0.01-20 wt.% (II) on a SiO2, Al2O3 or aluminosilicate support. USE/ADVANTAGE - The process is economical. It is claimed for purificn. of waste gas from soda prodn. and gas obtd. by adjusting (waste) water contg. NH3 or NH4(+) ions to pH above ca. 10.5 and then expelling the NH3 present. The latter includes NH3 produced from agricultural waste, e.g. liquid manure, and sewage. The process is also useful for purifying waste gas from power stations.
Patent DE-4021455-A1 (DE)
Title: Optoelectronic device for measuring deflection magnitude and direction - sends light with variable intensity to sensor with several receiver surfaces, microprocessor deriving deflection signal
Inventor: DRISSLER FRIEDRICH DR
IPC: G01P15/08
Filed: 1990-07-05
Abstract: A light source which emits a beam with intensity varying perpendicularly to the propagation direction can be transversely deflected relative to a receiver connected to an evaluation device. In each deflection position, each of several receiving surfaces (70,72,74,76) only receives a partial beam. - The receiver element (16) contg. the surfaces generates a signal corresp. to the total intensity of incident light. A microprocessor derives the deflection from the signal produced by the evaluation device according to the intensity distribution and the receiver surface geometry.
Patent DE-4033304-A1 (DE)
Title: Glass melting furnace - for vitrifying esp. toxic filter dusts of variable compsn. has waste and/or slag discharge device spatially sepd. from tapping part
Inventor: GROB ALFRED
IPC: C03B5/00
Filed: 1990-10-19
Abstract: In a glass melting furnace for vitrifying noxious materials (esp. toxic filter dusts), has a melting portion, a product tapping portion and a discharge device, waste and/or slag discharge device (5) is spatially sepd. from the tapping portion (2). Discharge device (5) pref. has a height adjustable partition wall (14) and an overflow edge (15) spaced from the partition wall. ADVANTAGE - Uniform furnace operation with good vitrification quality is maintained in spite of variations in compsn. of the charge, esp. filter dust from waste incineration plants.
Patent DE-4034850-A1 (DE)
Title: Framed support for access to trees - comprises horizontal tube fastened to tripod at one end and to tree at other end
Inventor: MAYER HEINZ
IPC: E06C1/34
Filed: 1990-11-02
Abstract: The framed support is used to give better access to medium sized trees. A horizontal tube (2) is fastened at one end to a branch of the tree by a fastener (1), and at the other end rests on a bipod (6) which is hinged together at the top (5), and is bolted to the hinge (5). A third support (14) is attached to the bipod (6) by a bell screw (15), and the two legs (6) of the bipod are stabilized by a cross brace (7) fastened by wing nuts and bolts (8). A ladder can be leaned against the horizontal tube (2) and fastened to it at any point along its length, thus giving greater access to the tree. USE/ADVANTAGE - Gives access to the tree from lower branches right through to the top and can be easily moved from one position to another.
Patent DE-4035213-A1 (DE)
Title: Electronic module housing with cooler - has aerating duct with ventilation ports coupled directly or indirectly to module ports for cool air stream flow
Inventor: WEISS HARALD
IPC: H05K7/20
Filed: 1990-11-06
Abstract: The housing (10) with a cooler retains at least one electronic module, e.g. a 19 inch insert casing for electronic modules. At least one aerating duct (22,23) has ventilation ports (26,27), directly or indirectly coupled to ports (18,19) in the module for flow connection on the module insertion. Air circulators generate a cooling air flow through the aerating duct(s). Pref. the air circulates contain a heat exchanger. The air, flowing via the ducts and modules, in hermetically sealed from ambient air. Separate ducts may extend over the entire depth and width of the module(s). USE/ADVANTAGE - Electronic module cabinets etc, with simple and effective cooling.
Patent DE-4035807-A1 (DE)
Title: Differential pressure control valve with two pressure chambers - has diaphragm control action with compensation for fluid supply line pressure
Inventor: PILSL JUERGEN DIPL ING
IPC: F02M21/02
Filed: 1990-11-10
Abstract: The valve is used to control the supply of gas from a pressurised tank to gas i.c. engine. The gas is received by a tube (8) that connects to a supply duct (15) feeding a nozzle (16) in the inlet manifold. The inlet to the duct is via an annular orifice (27) formed by the position of a diaphragm plate (23) that respond to a pressure difference. The fluid supply pressure (P3) is applied to the underside of a control diaphragm. Movement takes place to maintain in a constant difference (P1-P2). ADVANTAGE - Maintains constant pressure difference.
Patent DE-4035912-A1 (DE)
Title: Module-built heat exchanger - effects indirect heat transmission between media fed in pipes and has stacked module structure with serpentine pipe arrangements
Inventor: SCHILLING HEINZ
IPC: F28D7/08
Filed: 1990-11-12
Abstract: Each of the medium flows passes through its own meander-form pipe serpentine circuit, the circuits being arrnged in two or more aprallel planes to one another. Meat transmission is produced indirectly via a number of single-part heat conductive plates fitted transversally to the pipe circuits. The heat-associating pipe pairs are so assembled that for the pipe pairs in front of and behind them a heat flow obstruction in the form of a material narrowing occurs in the connecting plate. Dependent upon the volume flow extent of the media, several heat exchangers are connected parallel to distributors and collectors via blockable and releasable unions. The extent of heat exchange is determined by the overall lengths of the meander-form pipe serpentine circuits. USE - For the indirect heat exchange between media.
Patent DE-4041732-A1 (DE)
Title: Rapid heater for liquids and polymer melts - has large number of tubes or heating elements with enlarged cross=section before exit
Inventor: LIERKE ERNST-GUENTER DR
IPC: B29B13/02
Filed: 1990-12-24
Abstract: Device has one or more exit pipes preceded by a pipe of much larger cross section which contains heat diffusion paths appropriate to short heating times. The heating arrangements are pref. longitudinal heating wires spaced at the appropriate distance. Alternatively they can consist of a large number of smaller pipes in parallel which incorporate heating elements. Pref., polymer melt at 130 deg.C. is fed to about 1000 tubes, each about 1mm dia. and 10cm long. The tubes can be formed of a solid heated copper block or heating wires can be embedded in a bundle of separate tubes which are joined together. The polyemr temp. is raised to 200 deg.C. with a residence time of less than 4 secs. and is at a suitable viscosity to be fed to a sprayer. USE/ADVANTAGE - Polymer melts may be heated rapidly without hardening to achieve the temp. and viscosity needed for ultrasonic atomisation
Patent DE-4041772-A1 (DE)
Title: New bis:imidazolyl carbinol cpds. - prepd. via imidazolyl-lithium cpd., used in sepg. platinum gp. metals, e.g. from used catalysts
Inventor: KREBS BERNT PROF DIPL CHEM DR
IPC: B01J23/96
Filed: 1990-12-24
Abstract: C1-bridged (a)symmetric bisimidazole cpds. of formula (I) (or their mixts., acid addn. salts or quaternised prods.) are new. In (I) R3 = opt. branched 2-20C alkyl, halo- or Ph-substd. opt. branched alkyl, aryl (esp. Ph), halo- (esp. Cl)-substd. aryl (esp. p-halophenyl) or tolyl, R4 = lower alkyl (pref. Me, Et or Pr) or lower alkylene (pref. vinyl or propylene) and R5 and R6 = H or 1-3C alkyl or together form -(CH2)3-, -(CH2)4-, -CH=CH.CH=CH- or -CH=C(Me).C(Me)=CH-. Cpds. (I) are specifically claimed e.g. bis(N-methylimidazol -2-yl)nonylcarbinol. Prodn. of (I) by reacting 2 mols. of an imidazolyl-Li cpd. (or mixt. of such cpds. of the imidazolyl gps. in (I) are different) with 0.9-1.1 mols. of an ester of formula R3.COOR7 (R7 = 1-6C alkyl) and then hydrolysing the intermediate with a protonic cpd. esp. water. USE/ADVANTAGE - (I) are esp. useful in recovery of Pt gp. metals from aq. solns. or from used catalysts such as ammoxidn., reforming, isomerisation or car exhaust gas treating catalysts, cpd. (I) being contacted with the aq. soln. to effect selective pptn. or liq-liq. extn.
Patent DE-4101575-A1 (DE)
Inventor: GSCHWENDTNER HORST DIPL ING
IPC: F15C5/00
Filed: 1991-01-21
Abstract: The proposal is for a multilayer microvalve for switching or controlling fluid flows having an inlet and a shut-off component. The inlet is formed as at least one aperture in a first layer. The shut-off component takes the form of a second layer applied to the first. This second layer (15) has at least one further aperture in the region of the shut-off component. The shut-off component can be moved substantially parallel to the first (25) and second (15) layers, especially by electrical actuating means, so that, in at least a first position of the shut-off component, at least one inlet aperture together with at least one further aperture in the second layer (15) forms at least one through-flow aperture. The cross-section of the at least one through-flow aperture can be changed by actuating the shut-off component.
Patent DE-4104253-A1 (DE)
Title: Additional flashing-light warning system for motor vehicle - is activated automatically by overturning or collision causing centrifugal switch to complete held-in relay circuit
Inventor: KAEHLER BURKHARD
IPC: B60Q1/44
Filed: 1991-02-13
Abstract: A steel ball (5) rests normally in the base of a centrifuge in a housing with Cu plates (3, 4) on its top and underside. Abrupt deceleration on impact drives the ball (5) outwards to complete an electrical circuit between annular Cu plates (1, 2) wired to an electronic control unit (6). A relay (7) flashes the four warning lamps (L1-L4) and is held-in against the possibility of the ball (5) reverting to its rest position. USE/ADVANTAGE - In darkness or poor visibility, to indicate vehicular breakdown or driver incapacity. warning is also given automatically on impact with obstacle.
Patent DE-4105868-A1 (DE)
Title: Regulating AC motor for balanced interphase currents - using two parallel supplies with coupled current feedback
Inventor: OKUYAMA TOSHIAKI
IPC: H02P27/06
Filed: 1991-02-25
Abstract: An AC motor (2) is supplied via centre-tapped reactors (27, U, V, W) to its windings from two three-phase V/I converters (1A, 1B) controlled from reference current levels (istar, u, v, w).  The output currents from 1B are fed back into both summing-junction sets (8, 9, 10, A & B) such that the motor current is controlled from the mean value of the converter currents and the difference between them used to correct any interphase current imbalance in the motor. In other applications the reactors may be replaced by a second pair of motor windings, velocity feedback added and the rotating field coordinates modified. ADVANTAGE - Uses low reactance for close control of individual current phases.
Patent DE-4110750-A1 (DE)
Title: Negative lift generator for racing or sports car - applies hydrodynamic paraxodon to exhaust and car underbody
Inventor: BERZHEIM HANSBERND
IPC: B62D37/02
Filed: 1991-04-03
Abstract: The device generates negative lift on the underbody of esp. Formula 1 cars. It applies the process known as 'hydrodynamic paradoxon', to the exhaust gases coming at high speed from the exhaust system of a racing car, and the completely flat underbody. The underbody is completely flat, esp. at its rear end. The rear end is not curved upwards, as in conventional racing cars, and the underbody extends to the max. permissible length. The underbody is parallel to the road surface, and as close to it as permissible. It has openings, into which the ends of the exhaust tubes extend, at right angles to the underbody plane, or pref. at an acute angle in a reverse direction. The connection between the two is gas-tight
Patent DE-4110894-A1 (DE)
Inventor: KNOBL KARL-HEINZ
IPC: B23B31/12
Filed: 1991-04-04
Abstract: In a chuck the jaws (22; 122) can be moved axially in a gripping and a release direction by an internally threaded sleeve (38; 138) of a spindle drive (37; 137). When moved in the gripping direction, the jaws (22; 122) are shifted radially inwards by the interaction with a jaw taper sleeve (16; 116); when radially moved in the release direction, the jaws (22; 122) are shifted radially outwards by the interaction with jaw spreaders (28; 36a; 128) fitted inside the jaw taper sleeve (16; 116). The internally threaded sleeve (38; 138) is centred in a guide sleeve (90; 190). One end of the guide sleeve (90; 190) takes the form of an expansion cage (28; 128) for the jaws (22; 122) inside the taper sleeve (16,116) and centred by a contacting sleeve extension (32; 132) in the basic body unit (10; 110). The internally threaded sleeve (38; 138) is centred both inside the expansion cage (28; 128) and inside the sleeve extension (32; 132) on the guide sleeve (90; 190).
Patent DE-4111147-A1 (DE)
Inventor: BRUNKE HEINER
IPC: G01C21/26
Filed: 1991-04-06
Abstract: Digital local geographical data which are specific to a place, for example the local city map, are emitted by a local emitter (16) and received, decoded, buffer stored and presented on a display by appropriate receivers of a motor vehicle (10). The geographical data specific to the place are completed or modified by the local emitter (16), that adds information specific to the city, such as occupancy of multi-storey car parks. The receiving and displaying means of the motor vehicle (10) allow the received local geographical data to be displayed in their totality or as partial resolutions.
Patent DE-4113641-A1 (DE)
Inventor: HAEUSSLEIN FRIEDRICH ING GRAD
IPC: B24B55/05
Filed: 1991-04-26
Abstract: A power tool, in particular an angle grinder, has a housing (12) from which a drive spindle (13) with tool holder (14) projects. The drive spindle (13) is mounted in a bearing flange (15) with a projecting clamping collar (151). A guard (10) which at least partially covers the tool gripped in the clamping collar (151) is retained on the clamping neck (151) so as to remain fixed when the tool rotates. The guard (10) can be fastened to, and removed from, the clamping collar (151) without using additional tools. To this end, the guard (10) has a sleeve-shaped slip-on collar (17) which is pushed onto the clamping collar (151) and engages by means of radial projections (18) in an annular groove (19) in the latter. Axial grooves (22) in the clamping collar (151), which open into the annular groove (19), allow the slip-on collar (17) to be pushed onto the clamping collar (151) in a slip-on position which is rotationally different from the operative position of the guard (10). The radial projections (18) slide in the axial grooves (22). The guard (10) is locked in its operative position by mating members of a manually operated locking device (23) arranged on the slip-on collar (19) and on the clamping collar (151).