baber/WOPTO huggingface dataset:
Patent DE-4102683-A1 (DE)
Inventor: FREYALDENHOVEN UDO
IPC: H01S3/081
Filed: 1991-01-30
Abstract: The invention relates to a pulsed gas laser, gas laser amplifier or wavelength converter (laser) filled with gas that is operated at ambient pressure, to which a laser gas supply is connected and which is equipped with a tubular window, opening into the environment, for a laser beam to be coupled in and out. The invention has the object of reducing the apparatus and operational cost for separating the laser gas and the environmental gas at the window in a laser of said generic type, by simple, design measures. 
<??>The following features serve to achieve this object: 
 
  a) the tubular window (5) has a volume which corresponds to a multiple of the change in volume of the laser gas during pulsed operation of the laser (1, 3); 
  b) the tubular window (5) is fitted with its longitudinal axis (5a) at right angles to, or approximately at right angles to, the laser (1, 3) and points with its mouth (5c) in the same direction as the lifting force of the environmental gas in the mixing zone (5b) of the window (5) which forms during pulsed operation of the laser (1, 3); 
  c) the quantity of laser gas (2d) which is supplied from the laser gas supply (2c) to the laser (1, 3) and flows out through the tubular window (5) is dimensioned such that the concentration of the environmental gas diffusing into the laser (1, 3) is less than a predetermined limiting value. 
 
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Patent DE-4103505-A1 (DE)
Title: Ring gap continuous filter, which is bearing mounted for rotational cleaning - has reduced frictional resistance due to pressure differential acting on the drive shaft
Inventor: GEISBAUER HEINZ
IPC: B01D33/073
Filed: 1991-02-06
Abstract: Rotatable, radial flow ring gap filter, which is bearing mounted in an enclosed housing, having at least one open end for fluid outflow and a pressure differential between the clean and dirty sides of the filter, is novel in that the ring filter (4) is open at both ends but sealed, against either the housing or the rigid connected cover plates to separate the clean and dirty chambers. USE/ADVANTAGE - Ring filter mounting/bearing arrangement reduces the frictional effect produced by the pressure difference acting along the rotation shaft and thereby avoiding impedance to rotation when the ring cage is required to be cleared against the fixed scraper blade.
Patent DE-4104501-A1 (DE)
Title: Appts. for identifying core and sap surfaces of timber pieces
Inventor: LARSSON STIG
IPC: B07C5/14
Filed: 1991-02-14
Abstract: The output signals from the sensors (20a, 20b) are fed to a comparator (21) which produces an output signal identifying the surface which has occasioned a looser or tighter signal pattern as the sap or core surface. The signals from the sensors are fed into both inputs of the comparator (21), the comparator is programmed and connected so that at its output it emits a signal indicating which surface in the investigated timber piece is facing the required direction, e.g. upwards. To enact the identification process, a cleanly sawn plank (11) is moved on a transversal transporter between the sensors (20a, 20b). The sensors are transmitters and receivers for visible or infra-red light, sensitive to the difference in the portion of reflected light arising from teh difference in surface structure lines and surrounding wood material reflection properties.
Patent DE-4114062-A1 (DE)
Title: Spinnerets for filament prodn. - have circular heat insulated head contg. several spinneret units
Inventor: HANISCH MICHAEL DR ING
IPC: D01D4/08
Filed: 1991-04-30
Abstract: Head has several spinneret units set horizontally in one head. The head has double walled heat insulation in circular form, with a series of units supplied from a central feed for the melt, with the units being sepd. by a top cover.  Each unit, in its own container, slides in from below. The outside circumference of the head is pref. double-walled, for heat insulation. A central space is also insulated, and a series of tubular openings are seen at the base. At the top is a one piece cover which fits inside the outer walls. It is recessed to accept the spinneret units, each one of which has a perforated bottom plate. The units screw in from below. ADVANTAGE - The separate spinnert units can be removed for service, without having to take the whole appts. apart.
Patent DE-4116758-A1 (DE)
Title: Vehicle storage space for small personal objects - which comprises recesses above the windscreen fitted with elastic pockets
Inventor: WOYACK WERNER
IPC: B60R11/00
Filed: 1991-05-23
Abstract: Storage space (4, 6) for small personal objects such as spectacles, calculators and notebooks, is arranged in the roof area of a vehicle immediately adjacent the windscreen and behind or between a pair of sun visors. The storage space may be a simple single piece recess in the interior trim, or it may be a separately insertable component with elastic pockets or press fit mouldings to hold the stored objects in position, and covered by a lid. ADVANTAGE - Storage system within easy reach of a vehicle occupant which does not interfere with the available headroom and which is visually acceptable.
Patent DE-4117534-A1 (DE)
Title: Measurement arrangement for motor vehicle - has sensor rotating proportionately to vehicle speed whose signal is converted into braking distance for display
Inventor: KRENZIN THOMAS
IPC: G01P1/04
Filed: 1991-05-29
Abstract: The measurement arrangement has at least one sensor (1) which rotates proportionally to the speed of the vehicle (2). The time to complete at least part of a rotation is measured and converted (3) into a speed value. The speed value is converted (4) into a braking distance taking into account at least one vehicle parameter by an element with a device (5) for changing the specification of the vehicle parameter. The element drives a display device (6) showing the braking distance. The arrangement can have sensor of the distance to the vehicle in front. USE/ADVANTAGE - Presents driver with additional information to allow him to assess driving situation.
Patent DE-4121020-A1 (DE)
Title: Control unit module e.g. for kitchen appliance, vacuum cleaner - has following D=A converter, with module inputs formed by digital counter inputs
Inventor: EDLER GERD
IPC: G05B19/07
Filed: 1991-06-26
Abstract: The module in an integral unit of a digital connector (1) with a following D/A connector (2). The module imputs (E1, 2) are formed by the counter inputs, while its output (A) in the D/A conector output. At the module imputs are switches (T1, 2) for changing the connector state. The output transmits an analog control magnitude, corresp. to the counter state. Pref. the module imputs are each coupled to a switch and linked to the connector. One switch (T1) serves for the connector state incrementing, while the other one (T2) serves for the connector state reduction. At the A/D connector output may be connected an analog connector (2a) where output forms the module output.
Patent DE-4124777-A1 (DE)
Title: DC=AC voltage converter esp. for solar power plants - holds peak value of AC voltage constant while reducing RMS voltage to minimise no=load losses
Inventor: SCHAUMBURG ANDREAS DIPL ING
IPC: H02M7/538
Filed: 1991-07-26
Abstract: A pulse-width modulator oscillates at 50 Hz and two semiconductor switches (26, 27) connect DC alternately to the two prim. windings (22, 23) of a transformer (21). The RMS output voltage is regulated by an auxilary winding (25) in conjunction with an actual-value detector (32). An automatic switching circuit (60) driving the switching regulator (45) incorporates a load-dependent voltage divider (70) to reduce the RMS voltage off-load, using DC shunt resistance 63) and threshold swiches (87, 71). USE/ADVANTAGE - With domestic appliances, power tools, and even low-power fluorescent lamps with electronic starters, no-load power losses and wastage are minimised.
Patent DE-4129298-A1 (DE)
Title: Data support guard - comprises cap and base screwing together via fine thread, used for bin contg. special waste material
Inventor: NOWAK REINHARD
IPC: B65D6/02
Filed: 1991-09-03
Abstract: The guard is for a data support in partic. and comprises a cap on a base. These screw together via a fine thread. There can be an external thread on the base and an internal one in the cap, or they can be held together by a circlip fitting in a groove. The cap and base can be of polyvinylidene fluoride and/or Teflon, and a mounting plate can be clamped between them. There can be a central recess in the base for the support. ADVANTAGE - For a bin contg. special waste material, etc. allowing reading by instrument without removing support.
Patent DE-4131678-A1 (DE)
Inventor: GOHLA SVEN DR
IPC: C09K23/42
Filed: 1991-09-24
Abstract: Stable multiple emulsions contain a mixture of emulsifiers consisting of (i) a first, hydrophobic emulsifier (emulsifier A) or several such emulsifiers mixed, having the following properties: it must be highly soluble in the oil phase of the emulsion at the manufacturing temperature of the emulsion; it may not be isotropically soluble in water below approximately 50 DEG ; it may be isotropically soluble in the water at temperatures between approximately 50 DEG  and the manufacturing temperature of the emulsion; it must act primarily as a W/O emulsifier at temperatures between approximately 50 DEG  and the manufacturing temperature of the emulsion; and (ii) a second, hydrophilic emulsifier (emulsifier B) or several such emulsifiers mixed, having the following properties: it must be isotropically soluble in water; its solubility at temperatures between approximately 50 DEG  and the manufacturing temperature of the emulsion must be substantially stable.
Patent DE-4136145-A1 (DE)
Title: Cast mouldings with area for bonding - are made from e.g. cement incorporating a rough surface area made of e.g. sand-filled resin film for bonding to each other
IPC: B29C39/10
Filed: 1991-11-02
Abstract: Mouldings produced from liquids or pastes are made with a prepd. adhesive area for bonding to another moulding. This area is formed by means of a film which is placed in the mould beforehand, both sides of the film have rough surfaces. The film is pref. a resin reinforced with e.g. glass or carbon fibres or wire etc. and is roughened with sand, flints, corundum, metal shot etc. ADVANTAGE - Provides cheap e.g. cement mouldings for the purpose. The adhesive areas are effective. In an example, the moulding has an exposed area (2) in the form of a film (3) with a rough surface on each side (4, 5). One side (5) is bonded to the moulding itself (1). The other side (4) takes an adhesive, so that it can then readily be bonded to another similarly constructed moulding which has the same type of area for the purpose. The general principle used is that a film is first coated with an e.g. sand-filled resin and allowed to cure; this is then inverted, coated on the other side, and placed in a mould.
Patent DE-4137644-A1 (DE)
Title: Approximate determination of useful signal from noise affected measurement values - dividing successively gathered signals in two, forming mean values and deriving weighting function
Inventor: ZIPPE WINFRIED DIPL PHYS
IPC: G01D1/02
Filed: 1991-11-15
Abstract: The method involves dividing the total quantity of measurement values gathered over successive measurement periods into at least two parts of optional composition. The arithmetic mean of each part is determined for each sampling point. The characteristic functions formed for each part are added to produce a weighting function which is used as the approximated useful signal for further processing. USE/ADVANTAGE- E.g. for use with biological, radar and sonar signals. Randomly distributed noise signals are eliminated to large extent with minimal cost in terms of measurement time. Drawings unsuitable for reproduction.
Patent DE-4141849-A1 (DE)
Title: Insulated jug with inner steel container and outer plastics container - has plate-spring clamping ring pressed between rims to hold them together
Inventor: VETTER KLAUS DIPL ING
IPC: A47J41/00
Filed: 1991-12-18
Abstract: The insulated jug has an inner refined steel container (1), and impact-resistant plastics outer container (2), between which is an insulating layer. A clamping-ring (4) in the form of a plate-spring is pressed over the inner container. The outer container has an inward-protruding rim (5), and, together with the clamping-ring, is pressed against an outward-protruding rim (6) on the inner container. Above the inward-protruding rim is an upward-tapering rim (8). The clamping-ring ID is smaller than the inner container OD. The top rim (8) of the outer container presses against a radially outward-pointing rim of the inner container. USE/ADVANTAGE - The insulated jug top rim is sealed between the inner and outer container top rim by a clamping ring.
Patent DE-4200550-A1 (DE)
Title: Cable screw fastener with clamp insert to hold cable - has clamp fingers with non circular curved inner surface and gap between neighbouring fingers greater than between others.
Inventor: GEHRING PETER
IPC: H02G3/06
Filed: 1992-01-11
Abstract: The screwed cable gland (1) has a screw sleeve (2) and a clamp insert (5) with non-circular curves or inner contour. To form the non-circular curve on the inner side of clamp fingers (6) of the clamp insert the fingers have shape deformations. These deformations are formed on the inner side of the fingers nearest the surface of the cable gland or on their outer side nearest a pressing surface (7) of a counter-sleeve or warp around nut (3). The fingers are deformed such that the inside of the cross section is non-circular. Also, a slit (9) running diagonally to the radius, between two adjacent fingers is broader than usual between fingers. This leads to the desired non-circular inner contour of the insert by repeated deforming. ADVANTAGE - Simple to mfr. but ensures good holding and prevents cable being pulled out.
Patent DE-4206258-A1 (DE)
Title: Vehicle screen wiper installation preventing simultaneous relay operations - uses semiconductor switches to cut off current from other relays when one relay is energised from battery
Inventor: PAULUS WILFRIED
IPC: B60S1/08
Filed: 1992-02-28
Abstract: A first relay (Rel1) connects the battery (B) to four other relays in control of various modes of wiper operation. Second and third relays (Re12, Re13) switch the necessary voltages for slow and fast speeds of the wiper motor (WM). A fourth relay (Re14) switches the supply to a fifth relay (Re15) for wiper motor braking. All the relays have only one contact each and the simultaneous energisation of more than one relay is prevented by transistor switches (T1, T2) protected by voltage-limiting zener diodes (D1, D2). ADVANTAGE - A simple and inexpensive structure improves mutual exclusion of relay operations and prevents damage to the relays or wiper motor.
Patent DE-4206576-A1 (DE)
Inventor: SCHLECHT KARL DIPL ING
IPC: G01F3/16
Filed: 1992-03-02
Abstract: A process and device are disclosed for determining by a measurement technique the flow rate of a substance conveyed by means of a thick matter piston pump (1) through a delivery pipe (22). The thought at the basis of the invention is that the filling level of the delivery cylinder, which is required for accurately determining volumetric flow, may be inferred from the variations of the pressure in the delivery pipe. Feeding pressure in the delivery pipe (22) is thus continuously or periodically measured at predetermined time intervals by means of a pressure sensor (54). The interval between successive pressure strokes, used to determined the number or frequency of strokes, as well as the filling level of the delivery cylinder, used to determine the actual delivery volume per pressure stroke, are both derived from the time-dependent amplitude characteristic of the measured delivery pressure.
Patent DE-4217808-A1 (DE)
Title: Removal of exposed cords when slitting belts during mfr. - using shaped grindstone which removes cords without grinding side of belt
Inventor: NAGAI TAKAJI
IPC: F16G1/28
Filed: 1992-05-29
Abstract: Exposed cords on the sides of a drive belt are removed by running the belt on a continuous path and grinding off the cord to prevent fraying, without grinding the whole of the side of the belt. During the process the presence of the exposed cord is detected and grinding is confined to the indicated positions. V-belts are made by forming a tube on a drum with reinforcing cords in a spiral pattern and slitting off individual belts. Any exposed cords are ground off on a machine with a grindstone with a curved surface so that a U-shaped recess is left but no material is removed from the side. The cord is ground away to prevent fraying which can cause running disturbances and vibrations in use. USE/ADVANTAGE - Improved method of dealing with cords exposed when drive belts are slit from tubular blanks during manufacturra
Patent DE-4221425-A1 (DE)
Title: Throttle device for IC engine - has housing containing throttle channel and throttle valve shaft extending across throttle channel and rotatably located in housing
Inventor: NORGAUER RAINER DIPL ING
IPC: F02D9/10
Filed: 1992-06-30
Abstract: The throttle valve shaft has a slot which is located inside the throttle channel and in the slot is fixed the throttle valve. The throttle valve is formed from two part throttle valves (16,17) and each part throttle valve has a fixture tab (13), which extends into the slot (4). The length of the slot in the throttle valve shaft (3) is smaller than the dia. of the throttle channel. Each fixture tab (13) has a recess (14) open towards the other, through which a connecting component engages. Two or more connecting components are used for fixing each fixture tab to the throttle valve shaft (3). The throttle valve shaft (3) on both sides of the slot (4) has axial grooves (15) displaced through 180 deg. to accommodate the part throttle valves (16,17). USE/ADVANTAGE - To reduce the amount of leaked air through the throttle of an IC engine.
Patent DE-4222538-A1 (DE)
Title: Spatial acoustic and optical effect producing system - has optical waveguides and loudspeakers arranged behind picture wall provided around inside of closed room
Inventor: MALINOWSKI ROMAN
IPC: H04N5/225
Filed: 1992-07-09
Abstract: The system produces spatial acoustic and optical effects in a closed room of any shape and size. All of the inside of the room is provided with a picture wall (1). In the background, the wall (1) has optical waveguides (6) for conveying the picture information. The waveguides (6) are connected to a computer controller. Loudspeakers are arranged behind the wall all around it. These are controlled by amplifying systems and computers. A camera for recording pictures to be placed over such a system is formed in a three sided housing (7). Lenses are provided all over the inner surface of the housing (5). Inside the surface formed by the lenses are image sensors (9), a control element (10), an electric energy supply (11) and a transmitter (12). USE/ADVANTAGE - For cinema etc., e.g. using three optical fibres to form 3-colour pixel. Provides many special effects and illusions effectively. Audience can be transported to an imaginary world using such effects.
Patent DE-4230655-A1 (DE)
Inventor: RAVEN AXEL VON DR
IPC: D06L4/657
Filed: 1992-09-14
Abstract: Addition of photosensitising compounds to wood fibre substances and mixtures thereof in order to improve their degree of whiteness, their brightness and their colour location, and the fibrous substances obtained thereby, and their use.
Patent DE-4230999-A1 (DE)
Title: Motor vehicle sensor for detecting inadequate ambient light - contains illumination intensity detector sensitive to amt. of cloud by using polariser, to increase value for threshold switch with greater cover
Inventor: RUEGER BERNHARD
IPC: B60Q1/14
Filed: 1992-09-16
Abstract: The sensor contains a detector of illumination-intensity followed by a threshold switch which changes its switching state when there is insufficient ambient intensity. The detector output signal is evaluated according to the degree of cloud cover. For heavier cover, the illumination intensity value required to trigger the switch is increased. The degree of cloud cover is detected using the polarisation of the ambient light. The degree of polarisation is determined using a polarisation filter arranged before the detector and vertically adjusted and inclined wrt. the horizontal according to the inclination of the front of the vehicle. USE/ADVANTAGE  - Automatically switches on driving lights when appropriate according to ambient light intensity.
Patent DE-4237602-A1 (DE)
Inventor: BRUECKNER BELINDA
IPC: H01M8/2425
Filed: 1992-11-06
Abstract: In joining a high-temperature fuel cell stack there arises the basic problem of the contact over a large area of the electrode-dipole plate boundary areas. Owing to the residual ripple of the electrolyte and the electrodes fitted thereto and the resultant formation of poorly electrically conductive inter-diffusion layers at contact gaps, the overall efficiency falls owing to the resultant rise in the internal resistance of the stack. To remedy this problem the invention provides for the arrangement in a high-temperature fuel cell stack (2) of at least one functional layer (20, 22) between the electrode (10, 12) and the dipole plate  (16, 18), said functional layer being electronically conductive and easily deformable at the operating temperature of the stack (2). The invention is applicable to all high-temperature fuel cell stacks.
Patent DE-4239061-A1 (DE)
Title: Rear obstruction warning transceiver system for goods vehicle - has pulsed infrared laser and scanner contg. rotary prism and scan position detectors, with electrical interface to ignition which is cut=out when measured distance to obstacle crosses min. sepn. threshold
Inventor: WALL RUDOLF DE
IPC: G01S17/931
Filed: 1992-11-20
Abstract: The transceiver (1) installed at the rear of the vehicle is provided with interface connections for the ignition system (3), reversing lights (4) and a high-resolution display (5) within for the driver. An electronic evaluation microprocessor (11) controls a semiconductor laser (7), rotating (9) optical prism (8), and lens assembly with integral concentric photodetectors (10) and self-test device (6). The ignition is switched-off automatically when the vehicle encroaches within a fixed min. distance from any obstacle. ADVANTAGE - Driver can reverse safely into area divided into zones of different importance, within which several obstacles or hazards are reliably distinguishable.
Patent DE-4242877-A1 (DE)
Title: Motor-driven locking device for emergency door of building
Inventor: GEIGER JOSEF
IPC: E05C9/18
Filed: 1992-12-18
Abstract: The door (1) is hinged to its frame (2) at one side (1') and secured at the opposite side (1") by a number of locking elements (4) pivotable about parallel horizontal axes and actuated together by a vertical rod (6) connected to a driving mechanism (9) on the inside.An electric motor (11) fixed to a plate (10) rotates a disc which is coupled eccentrically to the connecting rod (20). A locking lever (not depicted) holds the plate in the locked position against a gas pressure spring (14).
Patent DE-4302060-A1 (DE)
Title: Use of bromelain as CD44 surface molecule modifier
Inventor: RANSBERGER KARL
IPC: A61K38/54
Filed: 1993-01-26
Abstract: Use of bromelain (I) for treatment of cancer and/or prevention of metastases. The effect of bromelain may conveniently be enhanced by the combined admin. with: (a) a further plant protease, pref. papain: (b) a lipase, pref. triacylglycerol lipase, amylase, pref. alpha-amylase, trypsin, chymotrypsin and/or pancreatin. (c) rutoside, and/or (d) Serratia peptidase.Esp. good results are obtd. using a dosage unit contg. (mg) bromelain (20-100, pref. 45), papain (40-100, pref. 60), triacylglycerol lipase (5-50, pref. 10), alpha-amylase (5-50, pref. 10), trypsin (10-30, pref. 24), chymotrypsin (1-10, pref. 1), pancreatin (50-200, pref. 100) and opt. 10-100 pref. 50) rutoside trihydrate.