baber/WOPTO huggingface dataset:
Patent DE-3844560-A1 (DE)
Title: Dental handpiece
Inventor: LOEHN GERD
IPC: A61C13/15
Filed: 1988-06-15
Abstract: In a dental handpiece for emitting radiation, which comprises a housing (2) having a light source (1), from which a light conductor (4) exposed to radiation by the light source (1) on its inner end (3) projects by its other end (5) emitting the radiation, the housing (2) having an actuation handle (6) with a switch (7) for switching on the light source (1) in the vicinity of its end on the light conductor side, the actuation handle (6) being arranged around the circumference of the housing (2) and contact surfaces (10) being arranged on the outer side of an insertion sleeve (12) provided in the housing (2), improved and simpler conveyance of the cooling air is to be achieved. For this purpose, the insertion sleeve (12) is provided so as to leave an annular gap (13) for passage of cooling air in the housing (2). <IMAGE>
Patent DE-3903362-A1 (DE)
Inventor: BRUECKMANN RALF DR
IPC: C09K23/30
Filed: 1989-02-04
Abstract: Chemically modified proteins obtainable by reacting casein, collagen, gelatin, albumin or mixtures thereof (a) with 0.5 to 15% by weight of chlorine or of a compound which liberates chlorine under the reaction conditions, in an aqueous medium at a pH of from 0 to 7 or (b) with 0.5 to 50% by weight of a non-aromatic mono- or disulfonic acid which contains in its organic radical one or more groups or structural features which react with nucleophiles, in an aqueous medium at a pH of from 6 to 14, are used as dispersants in colorant formulations.
Patent DE-3903521-A1 (DE)
IPC: H01L31/048
Filed: 1989-02-07
Abstract: The element according to the invention consists in a preferred embodiment of two panes (10, 12) assembled in the manner of a composite or laminate pane, a thermally insulating layer, for example an air or inert gas layer, formed between said panes, and a sheet-like photovoltaic unit (18) which is arranged between the one pane (10) and the thermally insulating layer and which can consist of a transparent semiconductor material. By this configuration of the element the solar energy is optimally available as light and thermal energy in accordance with its spectral distribution and after conversion by the photovoltaic element also as electrical energy.
Patent DE-3907292-A1 (DE)
Title: Stackable egg tray
Inventor: TUSKY GEB SPRINGENHEIDE
IPC: B65D85/32
Filed: 1989-03-07
Abstract: The invention relates to a stackable egg tray (1) for receiving a single layer of eggs in a mutually adjacent arrangement. The egg tray (1) has a multiplicity of receiving troughs (4) which have an opening corresponding to the meridian plane of an egg (3) to be placed in it. The trough depression (6) located below it is designed in such a way that one egg (3) is to be stored lying in each receiving trough. The receiving troughs (4) assume an oblique position of about 20@ relative to the plane. For this purpose, sloping elements (8) are disposed in each case on a basic plane of the egg tray, into which elements receiving troughs are recessed in each case. <IMAGE>
Patent DE-3911787-A1 (DE)
Title: Church air heater
Inventor: GOSSENS HEINZ
IPC: F24D5/04
Filed: 1989-04-11
Abstract: Church air heater has yop lengthwise opening narrower at outlet end and conduit forming air distribution chambers
Patent DE-3914604-A1 (DE)
Title: Vegetable slicer or grater - has runners on which blade frame slides set into motion by handle, gear wheels and connecting rods
Inventor: HEIDENESCHER FERDINAND
IPC: A47J43/25
Filed: 1989-05-03
Abstract: The vegetable slicer or grater consists of a stand (2) with a reciprocally moving frame (4), a flywheel (8), connecting rods (7), gear wheels (9,10), a  vegetable feeder (6) and a handle (11). The stand has runners (3) on which the frame slides. Exchangeable slicing or grating blades are inserted into the frame. The flywheel on each side of the stand has a connecting rod attached to the frame. When turning the handle the toothed wheels (9,10) are intermeshing, setting into motion the connecting rods which move the frame. USE/ADVANTAGE - Reciprocally moving vegetable slicer or grater offering safe and non-strenuous usage.
Patent DE-3918444-A1 (DE)
Title: Heat exchanger for coolant loops of nuclear waste storage - gives improved performance from shrouded tube bundle design
Inventor: KUMPF HERMANN DIPL ING
IPC: G21C19/07
Filed: 1989-06-06
Abstract: A tube heat exchanger separates the prim. and sec. coolant circuits for a nuclear waste storage chamber. The storage chamber is constructed of concrete with channels formed within it for cooling air flow. The heat exchanger is fitted as a seal above the storage chamber which contains spent nuclear fuel elements in boxes. Prim. coolant air circulates over the boxes and through the heat exchanger and returns. Secondary air is drawn from atmosphere  to circulate through the heat exchanger tubes and exhaust back to atmosphere through a chimney. ADVANTAGE - The use of a tube heat exchanger gives better performance than previous flat plates with ribs.
Patent DE-4000174-A1 (DE)
Title: Charge-transfer mesophase prodn. from coal tar and cyclic aromatics - by mixing isotropic aromatics with electron-donating or -accepting cpds. and treating, opt. at elevated temp.
Inventor: OESTE FRANZ D DIPL ING
IPC: C10C1/00
Filed: 1990-01-05
Abstract: In the prodn. of charge-transfer mesophases (I) from coal tar, coal tar pitch and similar polycyclic aromatics, the isotropic aromatics are mixed, in their molten or dissolved state, with electron-donating or electron-accepting cpds. and the mixt. treated, opt. at elevated temp. The mesophase produced from the charge-transfer complexes are sepd. from the isotropic phase in the usual way, e.g. by decanting. More specifically, the electron-accepting or electron-donating cpds. are mixed with the aromatic mixts. as inductors and the mixt. treated at above 350 deg.C until a liq. mesophase, produced from the charge-transfer complexes, is formed by polycondensation.  Nitrated aromatics are used as electron-accepting cpds. Pptn. of the charge-transfer mesophases occurs in several stages, opt. with different inductors, in which mesophases produced in each stage are removed. USE/ADVANTAGE - (I) can be further processed to C and graphite fibres, graphite foils and other highly pure carbonaceous mouldings. (I) have a low m.pt.
Patent DE-4001495-A1 (DE)
Title: Depth control of plough of agricultural machine - using three-bar linkage with variable length link dependent upon ground resistance
IPC: G05D15/01
Filed: 1990-01-19
Abstract: The hydraulically powered ploug is moved through the earth's surface with the depth regulated by a hydraulic system. The plough share is supported at the end of a 3 bar linkage that has the nominal depth set by a hydraulic power cylinder operating on the main linkage. A top link incorporates a second hydraulic cylinder that serves as a variable length element in the linkage. Thus cylinder adjusts the length dependent upon the external load generated by the ground resistance. An incremental position sensor feeds back pulses to the controller. ADVANTAGE - Adjusts actuator mechanism to suit load conduction.
Patent DE-4001717-A1 (DE)
Title: Multi-compartment container for recycling household rubbish - consists of outer receptacle with top rim, and inner partition
Inventor: HOFFEND MANFRED
IPC: B65F1/16
Filed: 1990-01-22
Abstract: The multi-compartment container for recycling household rubbish has an outer receptacle (2) on the top rim (3) of which has hinges or links (4) on one side for attaching a mechanically rigid, plastics flap-cover (8, 9). The opposite side has a clamping-rim for a collector-vehicle. At right angles to the axis of the hinge or link (4) is a partition dividing the rubbish into two compartments. The underside of each compartment lid (8, 9) has a mechanically absorbing wear-resistant, elastic plastic deflector plate (12) which has outwardly sloping conically shaped sides (13). USE/ADVANTAGE - The separate compartments of the refuse container can be emptied into a standard collector-vehicle, without the contents getting mixed.
Patent DE-4005397-A1 (DE)
Title: Car radio data transmission system - has transmission channels allocated to preset geographic directions of car travel
Inventor: WIESMEIER CHRISTIAN
IPC: H04B7/26
Filed: 1990-02-21
Abstract: The system has data transmitters operating on preset transmission channel. The latter in preset geographic travel direction are allocated to the car. Pref. four preset geographic travel directions of different carrier frequencies are unambiguously allocated. Such travel directions may have different TDM channels, or different data characteristics, or data coding. The transmitters are typically stationary for data transmission to cars over preset transmission channel. They may be in the form of road side beacons. The latter may have also data receiver for transmission channels, allocated to the geographic travelling directions.
Patent DE-4007929-A1 (DE)
Inventor: BUTZ EUGEN OTTO
IPC: B60N2/48
Filed: 1990-03-13
Abstract: A headrest for a motor vehicle seat has an upholstery carrier (10) of plastic which is held on a seat backrest by means of a support bar. For adjusting the inclination, the support bar on its upper free end area has an adhesion element, especially an annular one, of plastic etc. which acts in concert with an adhesion surface present on an upholstery carrier wall (29). Constant friction conditions for the stepless adjustment of the upholstery carrier (10) in relation to the support bar are ensured in the case of an upholstery carrier (10) of relatively pliable plastic, for example one of polyethylene, in that on the upholstery carrier wall (29) in the area of the adhesion surface a supporting element (16) composed of metal etc. is held and positively fixed resistant to pressure on an abutment of the upholstery carrier wall (29) transversely in relation to the inclination adjustment plane (7) in at least both end areas. The supporting element (16) in the area of its backing surface stabilising the adhesion surface is resistant to bending under a normal force emanating from the adhesion element. <IMAGE>
Patent DE-4011109-A1 (DE)
Inventor: SKJAEVELAND MAGNE
IPC: A01B15/06
Filed: 1990-04-06
Abstract: There is disclosed a multi-share plough comprising a plough frame (2), a plurality of plough bodies (1) mounted on the frame for movement between a number of different positions in order to vary the ploughing width defined between adjacent plough bodies, in which each plough body mounting comprises: a first pivot (4) connected to the frame (2) and defining a first upright axis about which the plough body is adjustable; an eccentric adjuster (5) which is pivotable between a number of different angular positions in order to define a corresponding number of adjusted positions of the plough body; a second pivot (8) connected to the frame and defining a second upright axis about which the eccentric adjuster (5) is pivotable; and a socket provided on the plough body (1) or a plough body carrier (3) connected to the plough body (1), and arranged to receive the eccentric adjuster (5) and to hold it captive against rotation in any one of its positions of adjustment. <IMAGE>
Patent DE-4014461-A1 (DE)
Title: Valve drive mechanism for lifting valve in IC engine - has plunger, cam and guide sleeve in which is inlet duct
Inventor: VOIGT DIETER DIPL ING
IPC: F01L9/12
Filed: 1990-05-07
Abstract: The valve drive mechansim is for a lifting valve which has a closure spring (3) concentric with its shaft, esp as a load-changing valve for a an IC engine. It has a tapper (7) with a contact surface (10) for a cam (8) and sits on a fixed guide-sleeve (2) on which it moves axially. The guide-sleeve (2) wall (11) has at least one inlet-duct (13) for a pressurised fluid. The guide-sleeve (2) wall on the side facing the inlet-duct (13) is thinner than near the duct (13) which has a non-return valve (14). One end of the closure spring (3) rests on a shoulder (5) in the guide-sleeve (2) or on a cylinder head (6). USE/ADVANTAGE - The valve drive is smaller, especially lenghtwise, than before.
Patent DE-4015506-A1 (DE)
Title: High quality air prodn. using multiple filter - having mechanical, noble metal coated and varying pH filter elements, pref. with monitor and warning system
Inventor: RUMP HANNS
IPC: G01N33/00
Filed: 1990-05-15
Abstract: Process and appts. are for producing esp. high air quality and monitoring this involves passing the air to be purified consecutively by (a) a mechanical filter element effecting very high purificn. which consists of (non)-woven fabric or electrets; (b) an element of filter material coated with noble metal, pref. by electroplating; and (c) a filter with layers of different pH, the last stage being strongly alkaline and sealed by an absolute filter. The noble metal coating pref. consists of Au, Pt or Pd. The sequence of the elements may be varied. A sensor is placed in the outlet zone. This consists of SnO2, phthalocyanine and FETMOS bio-sensor elements, giving signals processed in a microprocessor, which controls a display element and/or audible warning system. The computer programme of the microprocessor is made so that it produces an additive effect of the individual sensor elements and opposite tendencies are compensated. USE/ADVANTAGE - The filter is useful in industry, laboratories and hospitals, e.g. for air conditioning, clean room technology in semiconductor mfr., gene technology, medical technology etc. It is reliable and ensures removal of dust, gases, e.g. SO2, organic cpds. and residues of protein mols., e.g. bacteria, house mites, bacteria, fungi etc.
Patent DE-4016646-A1 (DE)
Title: Spacing elements for shuttering panels for concrete structures - have U=shaped cross=section and are supported in anchor elements
Inventor: ALBANESE GIULIO
IPC: E04G17/07
Filed: 1990-05-23
Abstract: The shuttering panels used for forming a concrete structure are held at the required spacing by means of U sections.  Each U section is supported at each end by an anchoring element (5). This anchoring element (5) has a central stiffening rib (8) and a U shaped slot (4) at its upper end. The central tongue (3) formed by the slot has a hole (6) for a nail (7) to enable the element to be fixed to the shuttering panel. The U section may have an extension consisting of a second narrower U section which fits inside the first U section. USE - Concrete structures.
Patent DE-4017097-A1 (DE)
Title: Digital adder circuit - has inputs received by stage that effects bit shift prior to processing
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1990-05-28
Abstract: A digital electronic circuit for the addition of two 54321 decimally coded numbers (A,B) generates a result in the same code. The inputs are received by a circuit that has 5 stages (25) formed from AND gates that allow different bit shifts to be made dependent upon the code combinations. The generate signals are received by an arithmetic unit that has a full adder and logic circuitry to generate a sum output in 54321 code. An alternative version handles numbers in 51111 code. ADVANTAGE - Simplified system for decimally coded numbers.
Patent DE-4020859-A1 (DE)
Title: Heat accumulator mfr. process - with component protection during baking or evacuation of insulation area
Inventor: SCHATZ OSKAR DR ING
IPC: B60H1/08
Filed: 1990-06-29
Abstract: The process is esp. for the mfr. of a latent heat accumulator for vehicle heating systems supplied by engine waste heat. It has a double casing (10), enclosing an insulation area; an accumulator core; and an inlet and outlet for the heat carrier, connected to a flow path. After mechanical fabrication of the casing, the insulation area is baked for degasifying, and evacuated. Baking takes place at a temp. above the operational temp. of the heat exchanger, and the components of the accumulator core are protected against temp. dependent damage. USE - Latent heat accumulator for vehicle.
Patent DE-4020881-A1 (DE)
Inventor: BROSOW JOERGEN
IPC: B06B1/06
Filed: 1990-06-29
Abstract: A resonance oscillator comprises an active, e.g. disk-shaped, oscillator part (2) which is brought into contact, forming a couple oscillator, with a passive, relatively long oscillator part. This oscillator part, which basically determines the resonance frequency, consists of a variable-length solid column or liquid column (11) the length of which can be varied continuously in the direction of the sound vector in order to change the resonance frequency. The active oscillator part (2) is mounted on the base of an elongated resonance container (6) which contains the liquid that forms the liquid column (11). The length of the liquid column is varied by sliding a piston (5). The resonance container (6) is bounded by a corrosion-resistant, high-strength covering disk (7) of minimal thickness and is connected to an equalizing container (9) which receives the liquid displaced by the piston from the resonance container and returns the liquid to the resonance container.
Patent DE-4024092-A1 (DE)
Title: Height adjustable dentist's chair - consists of foot operated control for gas spring, with control valve, and support disc
Inventor: MEY JOACHIM
IPC: A47C9/02
Filed: 1990-07-28
Abstract: The height-adjustable dentist's work-chair has a gas-spring (4) and a foot-operated control (14) operating a control-valve for the gas spring (4). The control (14) beneath the moving carriage (9) has several protuberances or segments (18) extending upwards into the free spaces (13) between two adjacent arms (10) of the travelling frame (9). The control (14) is in the form of a coaxial annular disc moving freely on a support disc (21) on the outside of the upright (6).  The annular disc has a contact cam (16) in contact with the plunger (17) of the control valve. ADVANTAGE - The work-chair can be easily, securely, accurately and comfortably adapted to different sitting positions by foot action.
Patent DE-4029375-A1 (DE)
Title: Control or switch unit for container level -  admits fluid to control chamber to operate switch by lifting float
Inventor: KOCH HANS-HELMUT
IPC: G01F23/64
Filed: 1990-09-15
Abstract: A control chamber (10) is formed in the base of a processing plant and receives a fluid that can be produced by machine spillage, e.g. liquid fat. Within the chamber, a control unit is based upon double tanks (12, 13), the latter contg. a float (14). The entry of the liquid into the chamber raises the level (16) in the outer tank. Holes (15) provide a connection between the units. As the level rises, the float moves  until a rod (18) operates a switch to signal an alarm condition. ADVANTAGE - Provides reliable signalling of presence of difficult fluid in control chamber.
Patent DE-4035565-A1 (DE)
Title: Networked computer system - has job server connection to number of service computers acting as unit
Inventor: LIESMANN JUERGEN
IPC: G06F15/16
Filed: 1990-11-08
Abstract: A networked multiprocessor system has multiple computer terminals (1-3) that are coupled to a file server (10). The connection to multiple service computers (31-33) is provided by a job server (20) coupled to the file server. - The job server provides either a direct or indirect connection with the terminals and the service computers. Service computers can be of the Intel 386 or 486 types.
Patent DE-4037264-A1 (DE)
Title: Scan protection for triangular window - comprises inclined upper rail, pivotable lower rail, and intermediate folded sheet
Inventor: WOLF HOLGER
IPC: E06B9/24
Filed: 1990-11-23
Abstract: A cord (17) extends through apertures in the protective sheet (8) along the greatest height (H). At the upper end, the cord enters the upper rail (4) where it is bent over, and then emerges again as operating cord (18). Whilst the one end of the cord is fixed to the upper side of the pivotable rail (6), its other end (18) forms a hanging loop (19) from the under side of the pivotable rail. To pivot the triangular sheet (3), the operating cord (18) is pulled downwards. During the upwards movement, the pivotable rail (6) is drawn apart, and the folds of the sheet match the rail angle, in that the material of the sheet slides on the tension wire (5) beneath the upper rail (4). USE - As a sun protection for a triangular window.
Patent DE-4040789-A1 (DE)
Title: Head-holding instrument used during brain surgery - has part hinging and lockable on two axes at right angles
Inventor: BIEDERMANN JENS
IPC: A61B90/14
Filed: 1990-12-15
Abstract: Instrument holds a patient's head during brain surgery and comprises a two-part holder with frame and two-part datum system. One part of the holder is fixed to the operating table and works with one part of the datum system and the other part hinging on two axes at right angles to each other, is lockable in position. Frame contains two adjustable and lockable ear cups with supports, a nose socket with forehead plate and a holder for the rear of the head. Components in the area of the skull to be mapped can be pref. PMMA. USE - For computer-controlled positioning and guidance of instruments when taking samples of tissue for examination or removing tumours.
Patent DE-4103615-A1 (DE)
Title: Eye cornea surface surgical treatment system - has laser light source with which integrator is used for homogenising light intensity distribution in beam cross=section, to divide in several, beam segments
Inventor: BECK RASMUS DIPL PHYS DR
IPC: A61F9/008
Filed: 1991-02-07
Abstract: A light optical unit is provided for directing the laser beam on to the corneal surface. The beam segments are formed overlapping in the image plane and the shutter unit (7) has several different apertures (a-1), which are movable selectively in the image plane, at the imaging place of the overlapped beam segments. The integrator (6) has segmenting elements (16,17,18,19) of circular cross section. A zoom optic (8,9) is connected in the circuit after the shutter unit (7). The segmenting elements (17,18,19) of the integrator (6) are designed as wedge plates, which are arranged in such a manner that they deflect the beam segments, for the overlapping place in the image plane. ADVANTAGE - System of known type, designed so that with simple auxiliary means, beam formation and beam homogenising are achieved.
Patent DE-4105188-A1 (DE)
Title: Di:methylamine prodn. - by reaction of methanol with excess ammonia at 250-450 deg. C in presence of a siloxane-treated acid ZK-5 zeolite catalyst
Inventor: FETTING FRITZ PROF DR
IPC: C07C209/16
Filed: 1991-02-20
Abstract: Dimethylamine (I) is produced by reaction of methanol or mixts. of methanol and dimethyl ether (DME) with excess ammonia at 250-450 deg.C and 0.01-50 bar in the presence of an acid zeolite catalyst (II); the novelty is that (II) is a siloxane-trated ZK-5 zeolite. (II) is produced, e.g, by reaction of a Cs/K-aluminosilicate (ZK-5) with ammonium salt, followed by pyrolysis of the NH4-ZK-5, treatment with a silanising agent (e.g, soln. of Si(OMe)4 in toluene) and pyrolysis to form a layer of SiO2; selectivity for (I)/MMA can be varied by varying the SiO2 layer thickness. USE/ADVANTAGE - Provides a selective process for the prodn. of (I), which is useful for the prodn. of solvents and pharmaceuticals; prior-art processes give mixts. of (I) with MeNH2 (MMA) and Me3N (TMA) which are difficult to separate by distn. due to the formation of complex azetropes.