baber/WOPTO huggingface dataset:
Patent DE-4009754-A1 (DE)
Title: Solar concentrator - made of aluminised plastic foil and transparent plastic foil connected together at their peripheries
Inventor: PAUL SIEGFRIED
IPC: F24S20/30
Filed: 1990-03-27
Abstract: Solar concentrator comprises an aluminised plastic foil and a clear plastic foil which are connected together at their periphery, and along two inner circular lines to form, when blown up, two outer rings and a lentil shaped centre.  Eyelets are provided on the outer seam to allow the concentrator to carry a tripod having e.g. a cooking pot at the concentrators focus. A fresnel lens can be used to further concentrate the output. The outer dia. is about 1500 mm and the other circles about 1350 and 1200 mm dia. The aluminium may be paint or foil on top of a palstic layer or between two clear plastic layers. The foil is transparent and heat resisting to greater than 100 deg.C. A stripe is provided to indicate when the inner circle is correctly inflated. The outer circles can be filled with air, sand, concrete or soil to stabilise the whole device.
Patent DE-4013507-A1 (DE)
Title: Liq. container esp. for spirit lever - has phototransmitter and photoreceiver producing signal evaluated to determine container position w.r.t. vertical or horizontal
Inventor: SCHNEIDER HEINZ
IPC: G01C9/20
Filed: 1990-04-27
Abstract: A liq. filled container, esp. forming the bubble (2) of a spirit level, has a phototransmitter (4) which illuminates the liq. and an associated photoreceiver (7). The photoreceiver's output signal corresponds to the type, quality and/or level (6) of the liq. and/or the position of the container w.r.t. the liq. The phototransmitter and photoreceiver are positioned to enable evaluation of the container position relative to the vertical or horizontal. ADVANTAGE - Increased operating convenience and ease of use and expanded range of applications.
Patent DE-4015891-A1 (DE)
Title: Hurdle cross bar for reduced injury risk - comprises extruded aluminium lath-like base and extruded plastic edging strip
Inventor: ERHARD KURT
IPC: A63K3/04
Filed: 1990-05-17
Abstract: A cross-bar for a hurdle (1) is fixed to a supporting frame at a given height and comprises a lath-like base (2) with a shaped upper edging strip (5) which provides both weather resistance and reduced injury risk to the hurdler. The base (2) consists of an extruded aluminium profile (4) with an upper edge shaped to hold an extruded plastic profile (5) which is produced in a soft plastic, particularly PVC. USE/ADVANTAGE - The hurdle cross bar is for sports use, is inexpensive, has good weather resistance and reduces injury risk.
Patent DE-4017255-A1 (DE)
Title: Variable damping control system for vehicle suspension
Inventor: WADA SHUNICHI
IPC: B60G17/018
Filed: 1990-05-29
Abstract: The damping control (7) system allows the damping characteristic of each wheel suspension to be adjusted in stages in dependence on the detected vehicle acceleration. Pref. the damping control (7) can be used to alter the torsion, the damping force and/or the spring characteristic of each wheel suspension in dependence on the detected vertical or lateral acceleration of the vehicle, or the differential of the detected acceleration.
Patent DE-4020811-A1 (DE)
Title: DC voltage supply circuitry using parallel switching devices
Inventor: KOENIGSTETTER GERHARD ING
IPC: H03K17/082
Filed: 1990-06-29
Abstract: DC voltage supply circuitry using parallel switching devices provides two=stage regulation with current sensing to control output devices
Patent DE-4021277-A1 (DE)
Title: Hand operated machine tool unit
Inventor: DOHSE HANS-PETER DIPL ING
IPC: B25F5/00
Filed: 1990-07-04
Abstract: The hand-operated machine tool unit has two handles and a motor. The rear handle has a throttle lever and swings about a horizontal axis. The forward handle is fixed to the motor and the rear handle (3) is in a carriage in which there are latches (15, 17) to secure the handle in different positions.
Patent DE-4021940-A1 (DE)
Inventor: KOBLITZ RUDOLF DIPL ING DR
IPC: H04N5/63
Filed: 1990-07-10
Abstract: When a television receiver is switched on, the combinatorial circuit component passes from standby mode through startup mode to ON mode. The aim is to obtain a startup mode which eliminates the risk of damage to the switching transistor. During startup mode, the frequency of the pulses which control the switching transistor is continuously reduced at increasing switch-on time and constant switch-off time. At the start of ON mode, the synchronization is switched onto the line frequency and the system which controls the operating factor is switched on in order to stabilize the operating voltages produced. In particular for a television receiver with a Wessel circuit.
Patent DE-4023856-A1 (DE)
Title: Piezo-transducer circuit providing lithotripsy pressure pulses - supplies transducer with current pulses of controlled width
Inventor: EIZENHOEFER HARALD DIPL PHYS
IPC: B06B1/02
Filed: 1990-07-27
Abstract: The circuit supplies the transducer (P) with current pulses having a pulse width dependant on the geometry and the material constants of the transducer and which is greater than the pulse width of the transducer characteristic oscillation. A diode (D) or a saturated inductance prevents a reverse charge flow from the transducer (P) to the circuit capacitor (C1). Pref the pulse width of the current pulses is determined by a controlled current source. ADVANTAGE - Prevents tissue damage.
Patent DE-4024362-A1 (DE)
Title: Evaluating amplitude classified signals e.g. ECG signals - using preprocessed classification signal to control direction of up=down counter
Inventor: GEISTERT WOLFGANG DR ING
IPC: A61B5/361
Filed: 1990-08-01
Abstract: The signal evaluation method involves using a preprocessed classification signal (F) to control an up/down counter's (Z) direction. A controller (ST) gates one of two counter clock signals (T1, T2) depending on its direction and blocks them when the maximum or minimum count is reached and the direction reversed. The counter state (N) is compared (K1, K2) with threshold levels (S1, S2) to set or reset an RS flip-flop (RS) whose output indicates whether the classification signal has a primarily high or low potential over a long period. USE/ADVANTAGE - The fully integrable circuit, esp. for evaluating ECG. signals, is insensitive to temp. and supply voltage fluctuations.
Patent DE-4024404-A1 (DE)
Title: Electric lamp with soffit light bulb - has bulb supported between two contact springs at opposite ends supported by common reception plate
Inventor: KOENEKE JOSEF
IPC: F21S8/00
Filed: 1990-08-01
Abstract: The lamp uses a soffit light bulb (10) supplied via current leads at one side and cooperating with a pair of contact springs (12), supported by a common reception plate (1), acting as the lamp holder. One contact spring is in the form of a frame and is fitted to the reception plate (1) at one longitudinal end, its opposite end (7) being bent over and provided with an opening for the light socket (9) aligned with an opening in the second contact spring (12) for the opposite socket. The sides of the frame are each bent about a line parallel to the longitudinal axis of the light bulb (10). ADVANTAGE - Stable support of light bulb.
Patent DE-4027009-A1 (DE)
Title: Gas chromatographic sepn. process
Inventor: GERSTEL EBERHARD
IPC: G01N30/18
Filed: 1990-08-27
Abstract: In gas chromatography a controlled flushing gas stream is passed through a sample release device contg. an evaporator tube for pick-up of a liq. sample consisting of solvent and test substances, while access to the sepn. column is blocked and the flushing gas stream, together with the entrained sample, is retained in the evaporator tube. When the sepn. column access is opened, the retained sample is heated by the evaporator tube and fed to the sepn. column by a carrier gas. The novelty is that at least one of the parameters of sample metering rate, evaporator tube temp. and flushing gas amount flowing through the evaporator tube per unit time is controlled in dependence on the other parameter (5) such that all of the solvent is evaporated in the evaporator tube and the discharged flushing gax stream is practically satd. with solvent vapour.  Appts. is also claimed.
Patent DE-4031811-A1 (DE)
Inventor: WOLF ELMAR DR
IPC: C08G18/10
Filed: 1990-10-08
Abstract: The invention relates to a process for the preparation of polyether urethane-urea-amines which is characterised in that the isocyanate prepolymer is reacted with the polyamine 
<IMAGE>
 in an NCO:NH equivalent ratio of from 1:2 to 12 at a temperature of 140-170 DEG C, preferably 150-160 DEG C, where 
 
  R is optionally alkyl-substituted C2-C12-alkylene or C4-C14-cycloalkylene, 
  R<1> is H, -CH2-CH2-CN, cycloalkyl or the 
<IMAGE>
 radical, 
  n is 1-5, 
  x is 2 or 3, 
  R<2> is as defined for R, 
  R<3> is [CH2-CH2-O]m, 
<IMAGE>
 
  or [-CH2-CH2-CH2-CH2-O]m, and 
  m is 5-200.
Patent DE-4036313-A1 (DE)
Title: Circular knitting machine - has needle movement provided by eccentric drive with levers attached to cylinder sliding on tubular machine body
Inventor: ARNOLD ROLF
IPC: D04B25/02
Filed: 1990-11-12
Abstract: A small circular knitting machine has a needle movement connected by a ring and lifter rods to a cylinder ring which slides along the central tubular body of the machine. An eccentric drive and levers actuate the cylinder ring. USE/ADVANTAGE - The machine is simplified to produce tubular net sheathing for packing purposes. The absence of ball bearings, or roller bearings which attract dirt etc. mean simple maintenance and trouble free running. The machine is compact and runs smoothly.
Patent DE-4041175-A1 (DE)
Title: Car door etc. rubber seal - has outwards open groove(s) in region of abutting side
Inventor: PFADENHAUER DIETER
IPC: B60J10/86
Filed: 1990-12-21
Abstract: The seal between a car door and the bodywork has a rubber elastic profile (6) with a connecting strap (8) attached to a retaining band (9) made of a material which is harder than that of the profile. - The contact side (9') of the band is fixed to an adhesive strip (12) and two outwards open grooves (10,11) are formed parallel to the contact surface.
Patent DE-4042317-A1 (DE)
Title: Light conductor identification method - measuring intensity of light passing through from non-ordered end to ordered end
Inventor: ANDERS KLAUS-PETER DR ING
IPC: G02B6/06
Filed: 1990-12-28
Abstract: A method of indentifying light conductors when light conductors are freely accessible at both ends of a light conductor cable involves using a light source (4) at one end and a receiver at the other. At one end (1.11) the conductors are not in an ordered arrangement and are illuminated in sections via masks (2). At the other end the positions of the individual conductors is determined, the light intensity or transmissivity measured and recorded and used to identify the individual conductors. USE/ADVANTAGE - For printing, textile, film industries. The individual light conductors in a cable can be selected and ordered rapidly and at low cost.
Patent DE-4100727-A1 (DE)
Title: Measuring analyte concn. with enzyme electrode sensor - by applying voltage pulse to disturb equilibrium, then measuring rate of relaxation, esp. useful in medicine and bio-technology
Inventor: KLEIN KARL-DITTMAR DR
IPC: G01N27/49
Filed: 1991-01-09
Abstract: Determination of the concn. of an analyte uses an enzyme electrode (EE) sensor at which electrochemically active substances, detectable by the sensor, are generated or consumed by reaction of analyte with the enzyme of the sensor. The new features are (1) EE, in the electrochemical equilibrium state, has applied to it (via a potentiostat) a voltage impulse of defined time duration and intensity so as to generate an external, cathodic or anodic electrical current pulse; (2) the potential of EE is allowed to return to its equilibrium value spontaneously, without any interference; (3) the rate of potential change in step (2) is measured potiometrically (up to a suitable point in time and over a suitable time interval after the end of step (1)) to provide a measure of analyte conc. Alternatively, the progression of the potential in step (2) is integrated over a suitable time interval to provide a measure of analyte concn. USE/ADVANTAGE - Compared with the usual amperometric approach, this method has better selectively and permits long-term, repeated measurements, esp. for monitoring and control of analyte concn. in medicine and biotechnology. The influence of interferants is significantly reduced; the electrode is only briefly in the non-equilibrium state; multiple measurements can be made on the same sample without having to remove the sensor between measurements, and results are available quickly.
Patent DE-4107797-A1 (DE)
Title: Electrical cable or lead retaining device - has orthogonal shaped elements securing circular wound cable or lead bundle
Inventor: SCHILLING WERNER DIPL ING
IPC: B65H75/36
Filed: 1991-03-11
Abstract: The retaining device has at least 2 identical elements (1, 2) with a common axis point, at which they are joined together at right angles via fixings, the outer arms of each element (1, 2) providing bearing and retaining surfaces (5, 6) for a circular wound cable or lead bundle. Pref. the elements (1, 2) are made of injection moulded plastics or a sheet metal band and are secured together at their centre in mirror symmetry with aligned bores (8) for fitting to a rotational axis. ADVANTAGE - Prevents damage to cable or lead bundle during transport.
Patent DE-4109278-A1 (DE)
Title: Prodn. of statistical aromatic co-polycarbonate - by anionic copolymerisation of ortho- and para-bisphenol carbonate monomers and para-bisphenol carbonate oligomer with organo-alkali metal initiator
Inventor: KEUL HELMUT DIPL CHEM DR
IPC: C08G64/30
Filed: 1991-03-21
Abstract: Prodn. of statistical aromatic copolycarbonates (I) comprises polymerisation of a mixt. of 5-95 pts.wt. cyclic aromatic carbonate monomers based on ortho-bisphenols (II) and 95-5 pts.wt. cyclic aromatic carbonate oligomers based on parabisphenols (III) in the presence of aprotic organic solvents and in the absence of atmos. moisture and oxygen, with organo-alkali metal cpds. as initiators. Wt. ratio (monomers and oligomers)/(solvent) = 2-35 pts.wt./100 pts.wt. solvent, and polymerisation temp. is between -50 and +100 deg.C. Pref., reaction is carried out with 10-90 pts.wt. (II) and 90-10 pts.wt. (III) in polar, aprotic organic solvent at -20 to +50 deg.C (absence of moisture and oxygen) with organo-K initiators, and with 8-25 pts.wt. (monomers + oligomers)/100 pts.wt. solvent. USE/ADVANTAGE - The process enables the prodn. of (I) by `living' anionic polymerisation; the prods. (I) are useful esp. for the prodn. of mouldings with good thermal dimensional stability.
Patent DE-4110564-A1 (DE)
Title: Alignment control for patterns of material web for printing press - monitors material flow near input rollers and provides correction signals for print rollers
Inventor: MARKERT KLAUS
IPC: B41F13/02
Filed: 1991-03-30
Abstract: The material for printing is pulled off a supply reel (2) by a pair of input rollers (3,4). A sensor (6) near the input rollers measures the movement and alignment of the material. A controller generates correction signals for the material drive to ensure correct application of the print stages (8). Simple perforation markings in the material provide the alignment control. The correction control is simply generated by an electronic processor. USE/ADVANTAGE - Simple alignment control, corrects for changing reel dia. Printing of bags etc. of paper, plastics material, metal foil or similar.
Patent DE-4116410-A1 (DE)
Title: Rock striker valve mechanism - works on piston O=ring principle with adjustable spring acting on piston via spring plate
Inventor: QUANTE HEINRICH
IPC: F16K17/04
Filed: 1991-05-18
Abstract: The piston axial bore in the closed state evolves into radial holes ending beneath the O-ring. A start arrester is provided on the piston (6) and the radial holes (10) have a cross-section which grows larger with the piston path. The piston has a ridge or ball socket, in which are guided balls or a ring spring in a connecting piece (4) at right-angles to the piston bore (5) and against the force of an adjustable positioning spring. The radial holes are long (10), running pref. inclined at an angle, widening from the inside outwards with a radial inclination and/or radially displaced. The piston (6) has long grooves distributed around its periphery and formed with a rise angle, which in the closed state of the valve are formed arc-shaped beneath the O-ring (7). USE/ADVANTAGE - For hydraulically operated rock boring equipment, to provide a fluid output quantity which is high, and as far as possible without any flow resistance.
Patent DE-4124945-A1 (DE)
Title: Lever device for measuring very small distance without hysteresis - has elongated plate with fixed points attached to measuring device and object being measured and has sprung plate curvature and flexing detectors
Inventor: KRANZ WALTER
IPC: G01B5/25
Filed: 1991-07-27
Abstract: The lever device has an elongated plate with at least two fixed points on either side of at least one slot. One point is fixed w.r.t. the device and the others to the measurement object. The plate attached to the measurement object is bent in a direction perpendicular to its plane and sprung at a defined distance. For measurement the plate with fixed points connected to the measurement object is moved parallel to the plane of the plate with fixed points attached to the measurement device. The plate end deflection approximately perpendicular to the plane of the plate is detected by sensors (8). USE - For measurements of fractions of a millimetre.
Patent DE-4128628-A1 (DE)
Title: Moving colour image generator - has luminance screen for sequential lighting in basic colour, red, green and blue
Inventor: ALIUS VIOREL
IPC: G09F13/34
Filed: 1991-08-26
Abstract: A diffusion screen, fitted over the luminance surface, has a layer switchable into a transparent state in a punctiform manner. Pref. each basic colour lights up 20 to 40 times per second. The transparently switchable layer may consist of points, arranged in a raster and transparently switchable. Typically the transparently switchable layer is formed by a liq. crystal screen. The frequency of the basic colours may be variable. USE/ADVANTAGE - For TV, video recorders, computer monitors, and commercial displays, with simple design based on optical retina retension.
Patent DE-4130521-A1 (DE)
Inventor: FLUHRER MANFRED DIPL ING
IPC: B23D65/00
Filed: 1991-09-13
Abstract: A band saw blade consisting of a joined, in particular butt-welded, section of a saw band has a joining zone (11) which is arranged outside the deepest point (9) of the tooth root (7). <IMAGE>
Patent DE-4131287-A1 (DE)
Title: Powder spray coating installation - vertically displaces spray head within spray booth relative to coated items fed in curved path
Inventor: SEILER DANIEL
IPC: B05B14/41
Filed: 1991-09-20
Abstract: At least one spray head (2) is contained within a spray booth (4) having at least one vertical slit (10) in one sidewall (12), via which the items (8) to be coated are fed to and from the spray booth (4). These items (8) are fed along a curved path of more than 180 degrees around the spray head (2), with a motor allowing vertical movement of the spray head (2) relative to the coated items. The motor lies outside and beneath the spray booth (4), with a coupling arm (16) projecting through the vertical slit (10) and aligned with an open section of the curved path. The spray device (2) is supported at the centre of the latter. ADVANTAGE - Allows reduced booth height and rapid colour changing.
Patent DE-4132562-A1 (DE)
Title: In-situ determn. of thin electrically conductive films resistance - includes elimination of distorting plasma effects
Inventor: FRANK WOLFGANG DIPL ING
IPC: G01R27/00
Filed: 1991-09-30
Abstract: Two voltage or current sources are used to produce a current in a circuit consisting of two current branches bracketing a film whose resistance is to be determd. in situ as a part of process control. The noise current I induced by plasma in the film is fed in equal parts into the two current branches which have equal resistances. The resultant currents I and I are measured directly or as voltage drops over known resistances. The average in these values is used to determine the measuring current I - which is independent of the plasma effect - and hence the true film resistance. The voltage or current sources pref. generate a direct current or an alternating current with a definite frequency. There are two symmetric current branches each with its own voltage source and measurement resistor. These resistors are chosen so that they and the film are subjected to about the same voltage. The measurement resistors are adjusted, in partic., stepwise to the varying resistance of the film in the course of its mfr. Four-point measurement in accordance with the Van der Pouw method is used to obtain measurement signals. The two current branches without voltage or current sources are short-circuited to determine the ion flow or the internal resistance of plasma. USE/ADVANTAGE - The invention can be used in the semiconductor circuit industry. In contrast to known methods, it allows the distortion of the measurement results by plasma effects to be completely eliminated and the film resistance to be determd. with a high deg. of accuracy.
Patent DE-4133851-A1 (DE)
Title: Arrangement for dosing and feeding component into mixing container - has reservoir container and periodically driven dosing element, can be pivoted into maintenance position for application of weighing device
IPC: G01G19/30
Filed: 1991-10-12
Abstract: The arrangement (4) for dosing and feeding a component into a mixing container has a reservoir container and a periodically driven dosing element. The arrangement can be pivoted from a delivery position into a maintenance position. In the maintenance position a weighing device (9) can be applied to the arrangement. A pivoting casing is pivotably mounted on a support (7) and the outlet side has a guide (8) for applying a receiving container with a built-in balance (10). USE/ADVANTAGE - E.g. for dosed delivery of inks, hardeners and activators. Enables simple automatic adjustment of components.
Patent DE-4200746-A1 (DE)
Title: Machine readable identification information in hologram bar=code - having fixed and variable code section formed by combination of two diffraction angle materials and blanked out section
Inventor: FRIES EBERHARD-ULRICH DR
IPC: B42D25/328
Filed: 1992-01-14
Abstract: The bar code pattern is produced in a hologram form that has +45 and -45 degrees diffraction elements. The pattern is formed in 2 layers and consists of a fixed and a variable code structure. A light source (1) is directed vertically onto the surface and the top layer has both +45, -45 or blanked out sections. The reflected beam is received by one of two detectors (2,3). For the variable coding bar code is formed in blanked out sections, such that the beam reflects off the lower layer. ADVANTAGE - Provides protection against falsification.