baber/WOPTO huggingface dataset:
Patent DE-3928775-A1 (DE)
Inventor: BRAHMS MARTIN DIPL ING
IPC: H03G3/30
Filed: 1989-08-31
Abstract: For controlling the level of electrical signals a circuit arrangement is formed with two series connected amplifiers. A first amplifier containing a first variable resistor, operates at maximum amplification when a low input signal level is received. A second amplifier comprises a series connection of a second variable resistor and a current-controlled voltage source with two complementary outputs. The outputs of the voltage source are connected to a comparator and a controller with two separate outputs. One of the controller outputs transmits a control signal while the other output simultaneously transmits a blocking signal. A first output of the controller is connected with the first variable resistor, while a second output of the controller is connected to the second variable resistor.
Patent DE-3934255-A1 (DE)
Title: Pipe casing section - has insulated sleeve with inner cylindrical reinforcements and outer detachable pipe straps
Inventor: WERNER DIETRICH PROF DR SC TEC
IPC: F16L55/165
Filed: 1989-10-13
Abstract: The pipe casing section consists of a water-tight, electrically insulating sleeve which has inner, spaced apart cylindrical friction-resistant reinforcements, and outer spaced apart  detachable pipe-straps. The bottom of the pipe straps have rollers. A thermally-insulated, temperature-resistant  pipe with internal compressive strength and conveying the medium is enclosed by the detachable pipe-straps. At least three, staggered, sliding, temperature-resistant spacer-pieces are positioned on the pipe straps. USE/ADVANTAGE - The method of replacing and repairing inaccessible straight damaged sections of piping is especially for hot-water pipes.
Patent DE-3938802-A1 (DE)
Title: Worm drive for rotary valve - is used in IC engine and has tooth path incorporating straight and inclined sections
Inventor: GRAFFENBERGER WILHELM
IPC: F02B1/04
Filed: 1989-11-23
Abstract: The worm drive (1) is for rotary valve control in an Otto cycle IC engine. It is designed so that each tooth path along a circumferential section length is two thirds straight and one third offset at certain points. USE/ADVANTAGE - System for opening and closing valves in IC engine unloads the valve sealing surfaces during part of the rotational movements.
Patent DE-3939516-A1 (DE)
Title: Sales display counter with replaceable data carriers - has holder and locking device for carriers formed by gap and clamping lip
Inventor: SCHAEFER ORTWIN
IPC: B65D25/20
Filed: 1989-11-30
Abstract: The sales display unit has a goods area for storing and displaying the goods and a holder for the data carrier (4). The holder has a frame (5) formed from side parts and a back wall (7). Between a first side part (6a and 6c) of the holder and the back wall (7) there is a gap (8) whereby the data carrier, generally a printed plastics card can be pushed through the gap into the holder. A second side part (6b or 6d) has a device (9) for locking the data carrier, pref an outer clamping lip (10) which can be swivelled resiliently about an axis (11) which lies in a plane parallel to the plane of the back wall (7). USE/ADVANTAGE - The data carriers can be easily replaced and locked in position.
Patent DE-3939996-A1 (DE)
Title: Projection TV screen with wide-range extinction rate - incorporates Fresnel lens facing double-sided cylindrical lens array and scattering layer with enlarged extinction sections
Inventor: PARK HONG CHEOL
IPC: G03B21/62
Filed: 1989-12-02
Abstract: The screen is formed of two layers (20, 30) involving a Fresnel lens (10) facing prim. semicylindrical lens array elements (11) on the inside of the viewing side layer (30), whose outside has a number of sec.  lens array elements (12) sepd. by extinction sections (14). Scatterers (13) are mixed with the material of the cylindrical lens layer (30). Parallel beams from the projection and Fresnel lenses are focused by the prim. array (11) on to the sec. array (12) for scattering. ADVANTAGE - Extinction cross-section is esp. large w.r.t.  lens array facets, giving enhanced contrast in high ambient lighting.
Patent DE-3940996-A1 (DE)
Inventor: CHAUVIN JACQUES DIPL ING
IPC: H04N17/00
Filed: 1989-12-12
Abstract: It is known, besides the actual image, also to set up a grid model with intersections for which the raster corrections are found and stored. The purpose is to provide a process for adjustment which ensures a properly centred position of the actual image and grid model. First of all the image (2) is centred at its exact position on the screen (1). The time position of the control pulses generating the grid model (SH, SV) relatively to the deflection raster is set. Especially for convergence correction in a projection television set.
Patent DE-3941685-A1 (DE)
Title: Vehicle restraining appts. for static stimulation test stand - has controlled mechanical restraining elements with force and measurement elements
Inventor: GANSOHR JOHANN ING GRAD
IPC: G01M17/007
Filed: 1989-12-18
Abstract: The appts. restrains a test object (e.g. a vehicle) at a defined position (centre of gravity), using one or more active restraining elements (12,12') acting mechanically on a fixed linkage or restraint with associated controllers. The controllers (60,60') detect static longitudinal and transverse forces which apparently continuously engage the object (9) via the controllers at the centre of gravity (s). The restraining elements (12,12') have associated force (70,70') and displacement (71,71') sensors feeding the controllers. USE/ADVANTAGE - To restrain vehicle at its centre of gravity whilst allowing freedom of lateral, vertical, longitudinal, pitch and roll motion.
Patent DE-3942340-A1 (DE)
Inventor: WEHRLE GERHARD DIPL ING
IPC: H01H50/58
Filed: 1989-12-21
Abstract: An electromagnetic relay with a return spring is described, where the relay consists of a solenoid coil with a movable armature as the drive and a contact spring assembly, and there is an actuating rod that starts from one end of the armature and engages with spiral springs by means of catches for actuation of the contact, whereby the return spring at the other end of the actuating rod returns the contact spring assembly to home position. In order to achieve a significant reduction in force with the contact spring assembly in actuating the relay, the reset spring here is designed as a top dead center spring such that when the relay is driven against the return spring, the force needed to bend the spring is reduced.
Patent DE-4007444-A1 (DE)
Title: Roof structure for conservatory - has anchoring device between eave purlin and wall allowing vertical free movement
Inventor: STROBEL RUDOLF
IPC: E04B7/04
Filed: 1990-03-09
Abstract: The roof structure is particularly for a conservatory. It has an eave purlin on which the bottom ends of the rafters are supported, together with an outer wall for the space covered by the roof, and preferably comprising door- and window-sections. Between the purlin (9) and the wall (17) is an anchoring device (19, 21, 23) allowing free movement in the vertical direction between the roof eave with purlin and the wall. USE/ADVANTAGE - The purlin can sag between the supporting points without additional load on the wall and consequence bursting of panes.
Patent DE-4009520-A1 (DE)
Title: Flap valve for vehicle heating system - with actuation using temp. responsive memory alloy
Inventor: MOELLER ROLF DR
IPC: F16K31/64
Filed: 1990-03-24
Abstract: The closure device is esp. a flap (3) on an air conduction channel (1). It is used in the heating or air conditioning unit of a motor vehicle. An element (7) which can change its shape in response to a change in air temp. is attached to the flap and opens a bypass (9) when the air temp. rises and closes it when the air drops. USE/ADVANTAGE - Control flap which ensures that cold air is not delivered to a vehicle windscreen, so causing misting.
Patent DE-4011441-A1 (DE)
Inventor: RUMPP GERHARD
IPC: E21B10/58
Filed: 1990-04-09
Abstract: The rock drill bit consisting of shank (1) and drill head (2) is provided with a cutting tip (4) as well as cutting pins (5) at the front end (3) of the drill head (2) pointing in the feed direction. The diameter on which the cutting tip (4) is arranged and the diameter on which the cutting pins (5) are arranged form an angle deviating from 90 DEG . An enlargement of the disposal flutes (6) is made possible by the deviation in the angle of both diameters. <IMAGE>
Patent DE-4014333-A1 (DE)
IPC: B01L3/02
Filed: 1990-05-04
Abstract: A pipetting device has a housing, at the upper end of which there projects an activation element which can be pressed in counter to a spring action. This activation element is connected by means of a rod system to a piston which can be moved in a cylinder in order to move an air volume. The cylinder communicates with an opening of a connection piece, in particular a connection cone, for attachable pipette teats which are open at the top and bottom. The piston 10 is designed as a hollow piston with an outer tubular skirt 23, which is held on an inner support 9 which is made especially of plastic and which is in communication with the activation element. It is possible to provide skirts 23 which are made of different materials and are exchangeable. <IMAGE>
Patent DE-4015336-A1 (DE)
Title: Device for purifying water by reverse osmosis - has control system to determine when filters need to be serviced and the reverse osmosis unit needs to be rinsed, thus improving reliability
IPC: B01D61/04
Filed: 1990-05-12
Abstract: In a new reverse-osmosis water purifying system, an initial activated-carbon filter (4) provided with a measuring device (19) connected an electronic unit (17) is used, and the device (19) determines the actual value of the degree of absorption of the filter (4). A control and switching device (10) is used to switch off the water supply to the reverse osmosis system when the conductivity of the pre-cleaned water leaving the filter (4) exceeds a predetermined value. A second similar filter (8) may be located downstream of the reverse osmosis module (2) in the direction of water flow (7), and may be provided with a water hardener for adding back minerals etc. to the treated water. USE/ADVANTAGE - The water purifying system is more reliable in operation and more user-friendly than similar devices which are now in common use. This is achieved by ensuring that the filters are serviced and the reverse-osmosis unit is rinsed at the required intervals with intervention by the operator being needed.
Patent DE-4020424-A1 (DE)
Title: Electronic upper pan scales - has parallel guide for control levers and corner load setting with EM force compensation
Inventor: DOSCHEK HELMUT DIPL ING
IPC: G01G21/24
Filed: 1990-06-27
Abstract: Two similar parallelogram controls form a coupling between the load carrier and the system carrier. The latter (1) is in flat form. The corner load setting lever (2) is supported at the load-carrying end of the system carrier via bending springs (3). Both springs (4a) at the system carrying end of the upper parallelogram control (5a) are fined on the corner load setting levers (2) directly next to the setting screws (6a,6b) determining the positions of the corner load setting levers. The springs of the latter are in a plane with those of the upper parallelogram control. The reception point (7) of the weighing pan (14)-correspn. to the middle point of the latter is at the vertical coupling line of the connecting points (8,9) on the coupling (11) between the load carrier (15) and the measuring element (10). ADVANTAGE - Optimum measuring accuracy with simple, economic construction.
Patent DE-4022278-A1 (DE)
Title: Glass pane bending assembly - has suspension conveyor for glass panes to be carried vertically through the work stations
Inventor: ERDMANN HANS
IPC: C03B27/052
Filed: 1990-07-12
Abstract: Appts. has a suspension conveyor for the glass panels to be suspended vertically from holding nippers. The vertical and suspended glass panes are carried by the conveyor through the work stations. - The loading the unloading stations and the bending and blowing station are on a horizontal plane. The kiln station is vertically below the bending and blowing station, for the glass panels to be lowered vertically into it and lifted clear. A combined loading and unloading station is on each side of the bending and blowing station. Both halves of the bending shaper have the same arrangement of bending units and a number of corresp. adjustable blower jets, where the shaper half sections are vertical and the bending units are adjustable horizontally. The bending units are as pins distributed pref. in a screen pattern over the bending surface, or parallel to each other across the full width of the bending surface. A carrier for the bending units, in each shaper half, is parallel to the starting plane of the flat glass pane, and the extension of each bending unit is adjusted at right angles to the carrier and the starting plane of the glass.
Patent DE-4023870-A1 (DE)
Title: Electric tooth-brush with brush head on side of rod - penetrates deeper between teeth by having longer and/or thicker and/or harder and/or denser brushes in central region
Inventor: SCHUMACHER HORST DIPL PHYS DR
IPC: A61C17/26
Filed: 1990-07-27
Abstract: The electromotor driven toothbrush (1) has a brush rod (6) in which the brushes (7), pref. in a central region (7`), are longer and/or more densely arranged and/or harder and/or thicker or otherwise formed for deeper penetration in the gaps between teeth of the user. The brushes remaining on either, side are normal. The brushs head is mounted on a circumferential line or region of the rod for rotation by the motor. A protective surface (2") covers a radial region of the brushes by extending parallel to the brush rod. ADVANTAGE - Less subject to wear. Effective even at low r.p.m. of motor.
Patent DE-4026280-A1 (DE)
Title: Plastics grip for carrying carrier bags - has two side parts holding bag opening between them
Inventor: HUSEMANN HENDRIK
IPC: A45F5/10
Filed: 1990-08-20
Abstract: The carrying handle is for one or more bags or cases. It has a plastics grip (1) conforming with the shape of the hand and provided with two side parts (2) between which the carrying openings of the bag(s) are placed. The side parts can carry advertising. USE/ADVANTAGE - Carrier bags etc can now be easily carried without cutting into the hand.
Patent DE-4026722-A1 (DE)
Title: Making soldered connection between component and PCB - locating discs on terminal pins to improve contact with soldering pads of flexible board
Inventor: SIEGEL HEINZ ING GRAD
IPC: B60T8/36
Filed: 1990-08-24
Abstract: A flexible circuit board (15) has conductor tracks formed between foils. The tracks have formed eye pads that provide the location for the pins (13) of mounted components. For a vehicle braking system the magnetic valves (12) used have pairs of connecting pins. - Soldered connections are made using discs (25) which are a press-fit onto the pins. These provide an increased area for forming the soldered joint (31).
Patent DE-4028233-A1 (DE)
Title: Vehicle engine heat exchanger -  has water tank and tube rib block with tube end ring union-type deformation
Inventor: ENGELHARDT DIETER DIPL ING
IPC: F28F9/16
Filed: 1990-09-06
Abstract: The ring union-type deformation (8) of the tube end (3') is formed by a direct compression of the tube end material using a stamp tool (7), and apertures (2) on the side of the tube base (1) turned away from the tube rib block (5) are widened in cross-section. In the thus widened apertures are provided plastics rings (11) which enclose the tube end deformation (8). The plastics rings are tensioned in their position by ultrasound effect, and the pipe ends are additionally fixed to the plastics rings by surrounds. The ring union-type deformation is fixed to the tube base (1) by a caulked ring convolution. USE - As a heat exchanger for a vehicle engine.
Patent DE-4040119-A1 (DE)
Inventor: HEYDECKE JENS
IPC: B05C1/10
Filed: 1990-12-13
Abstract: Disclosed is a process for throughplating bores in plate-like workpieces, in particular circuit boards, and a device for carrying out the process. The aim of the invention is to make it possible to carry out bore throughplating in a continuously operating installation. The invention calls for a fluid to be fed concentrically to a driven roller with valves which open apertures only during contact with the circuit board. A second roller holds the circuit board against the first roller. This device enables roller-gap losses to be minimized, thus giving controlled throughplating and hence reducing considerably the required pump rating.
Patent DE-4107345-A1 (DE)
Title: Pressure measurement arrangement with improved linearity - has capacitive electrodes on measurement membrane with additional reference and pressure dependent electrodes
Inventor: BENZEL HUBERT DIPL ING
IPC: G01L9/00
Filed: 1991-03-07
Abstract: A press. p measurement arrangement contains a press. sensor with a membrane whose press. dependent deflection is measured capacitively using a measurement electrode (112,12). It also contains a press. independent reference electrode (15,16) and an evaluation circuit. The sensor also contains a further electrode (13,14) forming a further press. dependent capacitance. The evaluation circuit has the following transfer function:- F = (Cs(p) - Cr)/Cf(p) where Cs is the measurement capacitance, Cr the reference capacitance and Cf the further press. dependent capacitance. USE/ADVANTAGE - The press. measurement arrangement achieves improved linearity.
Patent DE-4108210-A1 (DE)
Title: Drill coulter which removes obstacles in its path - automatically retains its position and formation, and is composed of drills attached to spiral spring mounted on cross bar
Inventor: GUETTLER FRITZ
IPC: A01C7/20
Filed: 1991-03-14
Abstract: A drill coulter which removes obstacles in its path and automatically retains its centering during the grain sowing process. The drills are arranged in a row on a transverse bar a set distance between each, or in several rows similarly mounted one row behind the other. Each drill (1) is attached to a spiral spring (3) in turn mounted on the cross bar (2), so that it is both vertically and laterally sprung. USE/ADVANTAGE - Provides a continuous sowing operation without a jamming or blocking of the drill coulters.
Patent DE-4109138-A1 (DE)
Title: Input keyboard for use by blind person - uses braille inputs with decoding by microprocessor to control signal generator
Inventor: GOEKEN KLAUS DIPL ING
IPC: B41J3/32
Filed: 1991-03-20
Abstract: The input device has Braille characters entered using a key element that has 6 elements arranged in a group. Mounted on the remote controller is an indicator panel (5) that allows the entered characters to be sensed by the finger. Typically 5 characters will be provided on the panel. The entered inputs are transmitted by operating an enter key (4) and the microprocessor (6) provides decoding and code conversion of the information. A control code generator (7) is activated to transmit signals to the unit being controlled. ADVANTAGE - Control of equipment such as CD player, radio or cassette recorder by Braille remote controller.
Patent DE-4111805-A1 (DE)
Title: Liq. crystal mixt. with wide nematic phase range etc. - contg. one or more opt. substd. alkyl 1,4-cyclohexylene bis-phenylene cpds.
Inventor: HITTICH REINHARD DR
IPC: C09K19/44
Filed: 1991-04-11
Abstract: A liq. crystal mediuma based on 2 mixt. of polar cpds. with positive dielectric anisotropy contains at least one cpd. of formula (I) where X = F, Cl, CF3, OCF3 or OCHF2; one of L1 and L2 = F and the other = H,; and R = alkyl, aralkyl, fluoroalkyl or alkenyl, each with up to 7C. USES/ADVANTAGES - The medium can be used in matrix-, twisted nematic- or super-twisted nematic cells and has compared with prior art compsns.(34pp Dwg.No.0/0)
Patent DE-4121189-A1 (DE)
Inventor: GLEIM HARALD
IPC: A61F13/02
Filed: 1991-06-27
Abstract: Packaged plasters, especially wound plasters with a wound covering or dressing materials or adhesive materials for medical purposes each comprising one plane carrier (1), the carrier being provided with a layer of pressure sensitive adhesive (2a, 2b) and, where appropriate, with a wound covering, which are covered and protected by a cover strip (3), the cover strip adhering to this layer of pressure sensitive adhesive, and these plasters or materials being surrounded and enclosed by two packaging leaves (6, 7) forming a package, one packaging leaf (6) lying over the outer side of said cover strip and being provided on the inside with an adhesive composition or a sealing mass (5) and being bonded to or sealed with the outer side of the cover strip, as a result of which the cover strip adheres more firmly to the packaging leaf than to the layer of pressure sensitive adhesive, and the two packaging leaves being bonded to or sealed with one another in a region going beyond the surface of the cover strip (5a, 5b) and the two packaging leaves being separable from one another, the packaging leaf (7) not provided with the adhesive composition or the sealing mass also being completely removable, where appropriate, and said plasters or materials adhering with the cover strip onto the other packaging leaf provided with the adhesive composition or the sealing mass in such a manner that the layer of pressure sensitive adhesive and, where appropriate, the wound covering, are covered and protected. <IMAGE>
Patent DE-4122752-A1 (DE)
Title: Video imaging of eye to determine line of sight - using infrared flashes during open period of electronic shutter in CCD video camera
Inventor: SCHERBARTH STEFAN DR
IPC: A61B3/113
Filed: 1991-07-10
Abstract: An image of the eye is recorded in a predetermined spectral region by a conventional infrared-sensitive CCD video camera equipped with an electronic shutter for a min. exposure time of up to 0.1 ms. When the camera shutter is opened by a synchronisation pulse, the eye under examination is irradiated by a source of infrared radiation, such as a conventional stroboscopic flashlamp, through an infrared filter. ADVANTAGE - Video image unaffected by external light e.g. sunshine. Subject eye strain minimised.
Patent DE-4128492-A1 (DE)
Inventor: HELLWIG VOLKER DR
IPC: B27K3/50
Filed: 1991-08-28
Abstract: The composition or concentrate according to the invention consists of a mixture of A) 1-(2-(2%,4%-dichlorophenyl)-4-propyl-1,3-dioxolan-2-yl-methyl)- 1H-1,2,4-triazole and B) 2-ethylhexanoic acid in a non-polar and/or polar organic chemical solvent or solvent mixture and at least one emulsifier or in a mixture of water and an organic chemical solvent or solvent mixture, preferably dissolved in a polar organic chemical solvent or solvent mixture and at least one emulsifier.
Patent DE-4131019-A1 (DE)
Title: Workpiece transporter for deburring machine - has two outer fixed rails, and movable centre conveyor rail, with movable workpiece transfer units
Inventor: SCHMIDT RAINER
IPC: B65G25/02
Filed: 1991-09-18
Abstract: The device has two outer fixed rails (3) with stacker plates (5) for the profile parts. It also has a conveyor rail (4) between the two, with transfer units (6) for the profiles. The conveyor rail is moveable, so that the transfer units move from an initial position below the plates, upward and forwards (8), to receive the profiles from the plates. The profiles are then moved, unit with a backward downward movement (9) into the initial position, they are deposited into the following plates. ADVANTAGE - Contact-free transportation, problem-free transfer.