baber/WOPTO huggingface dataset:
Patent DE-4039253-A1 (DE)
Title: Hospital bed structure - has counterweighted mattress section turning in bearings in frame when locking mechanism is released
Inventor: STIRM HELMUT
IPC: A61G7/16
Filed: 1990-12-08
Abstract: The hospital bed has a free-standing bed frame (1) with self-supporting mattress section (8). The mattress section turns in bearings(2) in the frame, and a counterweight (7) allows it to be set in any inclined position up to 90 deg. after release of the locking mechanism (4). A damper reduces shock-load on reaching either end position. ADVANTAGE - Greatly aids nursing of severely-injured patients in particular.
Patent DE-4102606-A1 (DE)
Title: Metal detector for earth or walls - uses analogue multiplier to compare sinusoidal signal of frequency determined by oscillator with probe coil with set frequency
Inventor: TOMASCHEWSKI MATTHIAS DIPL ING
IPC: G01V3/10
Filed: 1991-01-25
Abstract: An LC oscillator is tuned by the probe coil to the metal detector. The sinusoidal frequency generated by the oscillator from a f.m. demodulator is compared with a stipulated  frequency. The comparison is carried out by an analogue multiplier. The output signal serves as the d.c. voltage delivered by the f.m. demodulator as the result of the frequency comparison. The d.c. voltage is amplified by an operational amplifier (3) and displayed by a voltmeter, LED line or other indicator (4).  The f.m. receiving circuit (2) includes a limiting amplifier, quadrature multiplier and a l.f.  amplifier. ADVANTAGE - Simple, single seeking coil. Simple circuit, battery-powered. Highly sensitive, easy to build and simple to calibrate. Light and small.
Patent DE-4105075-A1 (DE)
Title: Electronic control system with selector for IC engine - has A=D converter in control unit for translating divided voltage into memory address signal
Inventor: AKBARIAN TAGHI
IPC: G01R31/00
Filed: 1991-02-19
Abstract: The control unit (3) is based on a calculator (4) with input and output interfaces (6,7) and a memory (5). It is linked (8) to a selective input unit (2) in which a key (11) completes the path for current to a rotary switch (9) selecting one of a number of different resistances (10.1-10.n.). The source of current is a reference resistance (12) in the control unit, forming a potential divider with the selected resistance (10). The stepped-down voltage is digitised (13). ADVANTAGE - Alternative functions can be called-up easily and without interference, by selective memory address from unambiguous source of commands.
Patent DE-4109842-A1 (DE)
Title: Short wave direction finder for motor vehicle - has antennae mounted on left and right rear of vehicle, and compares antenna signals to determine direction
Inventor: MEYER DIRK
IPC: G01S3/18
Filed: 1991-03-26
Abstract: The short wave direction finder for a motor vehicle can be operated whereby the antenna voltage and intermediate frequency are simultaneosuly switched to enable two antenna voltages to be monitored quasi-simultaneously. The direction finding is based on focussing the short waves through the roof of the vehicle. Two reception lobes are formed by two antennas mounted on the left and right at the rear of the vehicle. The antenna signals are compared to determine the diretion. ADVANTAGE - When used in competitions, arrangement can result in time savings.
Patent DE-4113385-A1 (DE)
Inventor: WALKER MARK J DR
IPC: A61K39/00
Filed: 1991-04-24
Abstract: A hybrid transposon with a PT-operon, plasmids and bacterial strains (hosts) therefor are disclosed.
Patent DE-4115341-A1 (DE)
Title: Shortening claw for round linked chains - has bolt-like safety member supported by spring tongue in centre area
Inventor: MATHES KLAUS
IPC: F16G15/00
Filed: 1991-05-10
Abstract: The security bolt (24) is set in the central longitudinal plane of the L-shaped claw (3) at right angles to the central transverse plane (MQE) and extending over this plane to the sockets (22) which conform with the curved contour of the round chain link (21). The spring tongue (25) which is fixed on the centre section (15) extends over the security bolt towards the insert slit, with the extended section (27) being curved convex relative to the insert slit. The round chain link in the insert slit only presses against the bolt in the event of sudden impact without moving it against the resetting spring force. USE/ADVANTAGE - The security position can only be released by consciously pulling back the bolt by manipulating the extended section of the spring tongue by a finger.
Patent DE-4116219-A1 (DE)
Title: Perforated over-clay for guttering - allows later to enter through perforations prevents leaves from entering drainage system
Inventor: ROSBACH HANNELORE
IPC: E04D13/076
Filed: 1991-05-17
Abstract: To remove leaves and other such matter, a perforated overlay (4) is laid over the gutter (8). One edge of the strip clips over the outer rim (2) of the gutter and the other end (7) is supported on the inner curve of the gutter (1'). The perforations in the overlay allow the rainwater to drain through into the gutter. USE/ADVANTAGE - Prevents rainwater drainage systems being blocked by leaves.
Patent DE-4129445-A1 (DE)
Title: Green luminescent material with good high current density brightness - comprises zinc sulphide doped with aluminium, gold and copper and terbium activated material
Inventor: YANG JUN-MO
IPC: C09K11/64
Filed: 1991-09-04
Abstract: Material consists of a ZnS:Cu,Au,Al material and a Tb activated material (TAM).  The second component pref. consists of either Y3(Al,Ga)5O12:Tb or LaOCl:Tb.  The mixing ratio of ZnS-based material and Rare Earth element based material is 95:5 to 80:20, (pref. 95:5 to 85:15). USE/ADVANTAGE - Material saturates at a low current density, while the other material gives increasing brightness to a higher current density, but a lower starting brightness.  Mixt. optimises the current density dependence of the material, resulting in increased brightness at high current density.  Material is used in the mfr. of colour cathode ray tubes.
Patent DE-4136179-A1 (DE)
Title: Turning feed in cigarette packing machines - uses pressure forced acting on diametrically opposites in opposite directions for rapid turning
IPC: B65G47/244
Filed: 1991-11-02
Abstract: The packs (28) are passed in succession to a turning station (10) where the oppositely moving turning guides (14) act on the diametrically opposite corner or edge areas of the packs. The turning guides are attached to a continuously rotating turning conveyor (13) whose drive matches the incoming supply of packs to be turned. When the packs are flat with the front facing upwards and the back facing downwards the pressure or shear forces act in opposite directions in the area of the narrow long sides directly adjoining an endface on one side and a base face on the other. ADVANTAGE - The packs can turn in the smallest possible space.
Patent DE-4138562-A1 (DE)
Title: Micro-profilometer measurement head - has two polarisation dividers for measurement and reference beams produced from single light source and measures distance or relative speed variations
Inventor: NEUBERT JAKOB DR
IPC: G01B11/30
Filed: 1991-11-25
Abstract: The measurement head includes a source of interfering light and an evaluation device which evaluates phase shifts to determine displacement or Doppler frequency shifts to determine speeds. Light from the source is divided into mutually perpendicularly polarised measurement (3) and reference (4) beams. The measurement light passed via a polarisation divider (6) is focussed to a point on a reflecting surface (8). Reflected light passes via an imaging element to a second polarisation divider (12). The reference light passes to the second divider via a similar path including a reference surface (14). The divider  returns measurement and reference light via multiple reflections to an evaluation unit. USE/ADVANTAGE - E.g. for measurement of surface roughness of metallic and magnetic storage devices or ceramics. Phase errors caused by vibrations, local inclinations and refractive index variations are eliminated.
Patent DE-4140762-A1 (DE)
Title: Sheet guiding system for rotary printing machine - directs jet of compressed air to edge of sheet to deflect it from printing cylinder
Inventor: KITTSTEINER HANS-JUERGEN
IPC: B41F21/10
Filed: 1991-12-11
Abstract: A rotary printing machine has a guide cylinder (5) which guides the sheets on to the printing cylinder (4). The printed sheet is held against the printing cylinder by suction. In order to guide to sheet to the turn round drum a pneumatic guiding device (6) is installed below the printing cylinder (4). The guiding device consists of two parallel plates (7) which are inclined at an angle (beta) to the tangent (10) at the point of contact of the extension of the plane of the device (6) with the printing cylinder. Compressed air is supplied to the connection (14) and a jet of air issuing from the device directed at the edge of the sheet deflects the sheet away from the printing cylinder (4). USE/ADVANTAGE - Sheet guide for printing machine prevents smearing of the freshly printed sheets.
Patent DE-4143237-A1 (DE)
Inventor: GRAAF PETER VAN DE
IPC: B01D46/52
Filed: 1991-12-31
Abstract: The filter element (10) is provided with a reticular support structure (12) which is permeable to the fluid to be filtered and is connected to a filtering electret filter layer (14). The reticular support structure (12) is arranged before the electret filter layer (14) when viewed in the flow direction (18). Further, the arrangement of the filter element (10) is such that, when fluid is passing through the filter element (10), the electret filter layer (14) can freely expand in flow direction (18) so that the volume of the layer (14) available for filtering is enlarged. For holding the material of the electret filter layer (14) together, a cover layer (16) can be provided behind the electret filter layer (14) as seen in the flow direction (18).
Patent DE-4200611-A1 (DE)
Title: Exhaust gas manifold for vehicle IC engine - has branch pipes of equal length to minimise time between engine start and catalytic converter activation.
Inventor: HANSEN RAINER DIPL ING
IPC: F16L9/18
Filed: 1992-01-13
Abstract: The exhaust gas manifold is for an IC engine. The main pipe (11) consists of an outer tube (19) and a thin-walled inner tube (20), with an annular space (21) in between. The branch pipe sections (12,13,14) are relatively short and of roughly the same length such that the centre line axis of the main pipe runs parallel to the fastening flanges (15,16) and so to the engine block. USE/ADVANTAGE - Exhaust gas manifold where the time difference between starting the engine and activating the catalytic converter is relatively short.
Patent DE-4201523-A1 (DE)
Title: Optical scanning system to obtain surface profile information - has beam used to scan surface of object with signals reflected back to matrix camera
Inventor: STEIN NORBERT DR ING
IPC: G06V10/10
Filed: 1992-01-21
Abstract: The object (1) is moved at a controlled rate by a feed unit and passes through an optical scanning station. The scanner has a light beam (5) that is directed by a mirror (8) on to the object surface. Alternatively a moving beam can be controlled to line scan the surface of a fixed object. The optical signals are deflected from the surface and are received by a matrix camera (7) that records a surface pattern profile. The deflection of the beam from the surface depends upon the changes in surface characteristics. ADVANTAGE - Improved image acquisition.
Patent DE-4202989-A1 (DE)
Title: Workpiece clamp for machine tool - uses application or insertion of shaped elements, e.g. conical centring opening as artificial mfg. basis in workpiece for clamping
Inventor: TRUMMER ACHIM DR ING
IPC: B25B1/24
Filed: 1992-02-03
Abstract: The positioner-evaluator clamp (5) is respectively assigned a conical centring opening (2). The element (5) has a spherical curved surface making contact with the contact region (KB) of the conical opening (2). One or more conical centring openings (2), classified suitable for the system, depending on the number of the to be fixed degree of freedom, are applied at the workpiece (1). In which by a relative movement, the respective associated positioner-evaluator clamp element (5) penetrates, for transporting and/or aligning the workpiece, and subsequently simultaneously determining and clamping. ADVANTAGE - With small engineering cost functionally reliable determination and clamping of workpieces of any geometric and finished condition, esp. blanks.
Patent DE-4203472-A1 (DE)
Title: Screw conveyor for cutter in harvester - has toothed entrainment member connectable with screw winding
Inventor: RIEDINGER FRANZ
IPC: B65G33/24
Filed: 1992-02-07
Abstract: The entrainment member (12) can be brought into and out of an operating position and can swivel at one end about a bearing (20). The entrainment member is held in each position by force locking means. The entrainment member can have a stop. An oblong hole (28) can also be provided near the stop in the basic element (14) so that a screw defining the swivel movement can be inserted in the hole. ADVANTAGE - Owing to its movable arrangement the entrainment member can be brought more or less severely into engagement with the material being conveyed, thereby adapting to different requirements.
Patent DE-4204704-A1 (DE)
Title: Applying rust protection coating to tear line area of a steel pull-ring top - using a matrix printer with at least one applicator head and means of moving the can top relative to the head
Inventor: SLOMIANNY JAN
IPC: B05C11/10
Filed: 1992-02-17
Abstract: Equipment for applying a rust protection coating to the tear line area of a steel food can pull-ring top with a jet matrix printer, comprises (a) a control instrument and at least one applicator head (30) which directs droplets containing rust protection lacquer and (b) a means of moving the can top (22) relative to the applicator head (30) so that the tear line area is completely and continuously covered by adjoining droplet spots. USE/ADVANTAGE - The claimed invention provides equipment and a process for applying a continuous rust protective coating to the partially cut tear line of a steel can pull-ring for longer term rust protection.
Patent DE-4205412-A1 (DE)
Title: Respirator for assisting breathing using liquid respiratory gas - has flow-controlled pump for circulating atmospheric air to promote gas vaporisation and mixing sac with carbon-di:oxide removal.
Inventor: PASTERNACK ADALBERT DR
IPC: A62B7/00
Filed: 1992-02-22
Abstract: The respirator has a storage container (1) for an absorbed liquified gas (7) e.g. oxygen, and internal conduits for transferring heat from atmospheric air to promote vaporisation of the gas (7). The external air is drawn in via the inlet (23) and circulated by an electric blower (22) controlled by a regulator (30) which responds to the differential pressure sensors (25 28) to maintain a preset flow rate of vaporised gas for mixing with air in the sac (3). The user inhales the mixture via the tube (5) and exhalations (6) pass through the cartridge (2) for carbon dioxide removal and re-circulation. An electric heating element in the container (1) may replace the blower (27). USE/ADVANTAGE - Ensures adequate induction of atmospheric air for efficient vaporisation of respiratory gas under all conditions of surrounding environment and user breathing characteristics. Flow-rate of respiratory mixture is automatically regulated to eliminate need for user adjustment.
Patent DE-4207467-A1 (DE)
Title: Suspended file for accommodating single loose sheets or individual dossiers - comprises rip-proof cardboard-type base which at its ends turned away from centre fold is provided with suspension rail, self-adhesive strip and inlay pockets.
Inventor: HAFNER INGO DIPL ING
IPC: B42F15/00
Filed: 1992-03-10
Abstract: The suspended file (1) is made from olefin fibre-plastic-sheeting formed under pressure and temp. and sprayed on to a surface and at its end areas formed with or without fold is provided with at least four incisions or approximately 2 mm wide slots (1.3) equally or unequally spaced apart, arranged over the file width crosswise to the longitudinal direction. The centrally folded suspended file (1) in its end areas has a 5 - 15 mm wide glued or welded fold with slots (1.3). In the incisions or slots the plastic, steel plate or other material suspension rail (2) is alternately threaded engaging over and under. The oppositely arranged end pockets (1.4) are adhered to the suspension rail (2). USE/ADVANTAGE - To enable essentially more files to be accommodated in a suspended filing system.
Patent DE-4207479-A1 (DE)
Title: Shaft sealing ring for divided housing sealing - engages from outside over housing to produce radially inwardly directed force components preventing housing halves from expanding
Inventor: STEPHAN BERND DIPL ING
IPC: F16J15/3252
Filed: 1992-03-10
Abstract: The inner circumferential face of the axial arm of the housing ring forms the seat face (8) for the shaft sealing ring (7).  At least the region of one housing half (2') of the sealing ring (7) has on the outer circumference a groove (12) for centring a cover. The groove can be formed from a bead-like elastomer thick bead. Both the inside and outer circumferential face of the axial arm can have a wavy section. USE/ADVANTAGE- For IC engines,without spreading of the housing parts,and with low-cost sealing ring mfr.
Patent DE-4208327-A1 (DE)
Inventor: NUMRICH UWE
IPC: C08J7/04
Filed: 1992-03-16
Abstract: The invention relates to articles formed from a mixture of from 70 to 99.9 parts by weight of a polymer A containing from 20 to 100% by weight of styrene units with from 0.1 to 30 parts by weight of an A-compatible flameproofing agent B as core material, which is provided with a coating of a poly(meth)acrylate C which is compatible with the mixture of A and B and contains from 10 to 100% by weight of monomers of the formula I <IMAGE> in which R1 is hydrogen or methyl, R2 is an optionally substituted cycloalkyl radical having 5 to 8 carbon atoms or a non-aromatic, ring carbon-containing heterocyclic ring having 4 to 12 ring atoms and at least 2 heteroatoms X = O, S or NH, where the heteroatoms must not be adjacent to one another, the polymer A containing less than 10% by weight of polar monomers from the group consisting of (meth)acrylonitrile, maleic anhydride and maleimides.
Patent DE-4216177-A1 (DE)
Title: Overcurrent protection device for power semiconductor - uses control signal amplifier with opto-coupler for voltage separation
Inventor: NISHIZAWA YUJI
IPC: H03K17/08
Filed: 1992-05-15
Abstract: The overcurrent protection device uses a control circuit (3) providing a control signal for switching the power semiconductor (1) in and out, supplied to the gate (G) of the semiconductor (1) via a control signal amplifier (2), which provides potential separation. Pref. the amplifier (2) has an input photocoupler (10) receiving the power semiconductor control signal and a photodiode (18A) between the amplifier current source (9) and the gate (G) of the power semiconductor (1), for limiting the gate voltage. A measuring stage (18) coupled to the power semiconductor gate (G) and the amplifier (2) controls the signal provided by the control circuit (3) in response to an overcurrent in the amplifier (2). USE - For insulated-gate bipolar transistor, power MOSFET, or bipolar transistor.
Patent DE-4219098-A1 (DE)
Title: Conveyor transporting coal in underground mine - has frames joined end to end by pivoting joints to support conveyor belt
Inventor: PAURAT FRIEDRICH WILHELM
IPC: B65G21/20
Filed: 1992-06-11
Abstract: The conveyor is used for transporting bulk material, such as coal in an underground mine. It is so designed that it can follow a curved path. The conveyor belt is supported on a number of frames (3) which are joined end to end by a pivoted joint which enables each frame to swing about a vertical axis relatvie to the adjoining frames. Each frame is supported on wheels which run on guide rails. The frames support a chain and driving gear which drives the conveyor belt. The frames are moved to and from the work station by tractors (6) which are supported on endless tracks. The separate frames are swung relative to each other by means of actuators controlled by infra-red rays emitted from a control device (23) to enable the frames to negotiate the required curves. USE/ADVANTAGE - Conveyor for transporting coal from coal-cutting machine along curved path.
Patent DE-4223647-A1 (DE)
Title: Electronic unit cooling appts. for use in camper van - has cool air carrying system which draws cool air over underfloor equipment to leave below cooling ribs of electronic units
Inventor: KOLK WILFRIED DIPL ING
IPC: B60R16/02
Filed: 1992-07-17
Abstract: The electronic units form part of an underfloor energy supply equipment and are respectively equipped with a cooling unit. The latter has cooling ribs (22,24) which rise out of the frame construction (10) of the underfloor equipment (8). The latter contains a cool air carrying system (42), through which cool air under the floor of the van is drawn in over the equipment. The cool air leaves from the underfloor equipment below the cooling ribs of the electronic units. ADVANTAGE - Avoids soiling of cooling ribs of electronic units.
Patent DE-4225536-A1 (DE)
Title: Hook to hold purlin on rafter in building roof - consists of flat metal bar with apertures at its ends, accommodating ends of circular section rod bent into U-shape, with hook member fastened to one corner of U-shaped rod to hold purlin
Inventor: WITTRICH DIETER
IPC: E04G3/26
Filed: 1992-08-01
Abstract: The fastening element is used on the roof of a building. It may be adapted to hold purlins or laths resting on the rafters of a normal roof structure. The fastening element (1) has a flat metal bar (5) with apertures (16,17) at its ends, accommodating the ends of a circular section rod (4,7,6) bent into a U-shape. This element is fitted round a rafter, one of the apertures (17) being slotted so that the bar and rod arrangement may be opened up. A hook (8) is fastened to one corner of the U-shaped rod to hold the purlin. USE/ADVANTAGE - Simple, cheap and easily fitted hook to hold purlin on rafter in building roof.
Patent DE-4226361-A1 (DE)
Title: Fuel-air mixt. compressing IC engine - has remaining space during compression varied w.r.t. mixt. feed quality in direction of best compression ratio
Inventor: ZIMMER ALEX
IPC: F02B75/04
Filed: 1992-08-10
Abstract: In a piston engine, the compression determining piston end position is variable, pref. by an eccentric (15) acting on adjustable crankshaft bearings (4) in the engine block (1) alternately an eccentric may act on a hydraulically variable big end bearing in the connecting rod. Hydraulic, telescopic position adjustment of the connecting rod may be also used for varying the piston end position. The eccentric may be in the form of a drive forming a circular piston with at least one protruding radial piston section (16), slidable in a radial widening (18) of the eccentric drive bearing. USE/ADVANTAGE - Increased performance and efficiency of fuel-air mixt. compressing IC engine.
Patent DE-4228317-A1 (DE)
Title: Fastening element for artificial joints - using synthetic resin to press compatible metal foil on to joint
Inventor: MAYER EBERHARD DR
IPC: A61F2/48
Filed: 1992-08-26
Abstract: Artificial joint is fixed in place by a fastening element consisting of a basic body (1) with the joint head and a metal foil (2) attached to the shaft. The foil is pref. of a number of layers, for compatibility, e.g. Ti, and adhesion, e.g. Fe, embossed with a fine pattern and applied in small folds. The fastening element is filled with liquid polymerisable synthetic resin (7), expanding the foil. ADVANTAGE - Adapts to the required shape and can be mfd. cheaply as standard.