baber/WOPTO huggingface dataset:
Patent DE-3929537-A1 (DE)
Title: Heat ray reflector for solar cooker - consists of number of flexible discs perforated around edge to form parabola
Inventor: SITZER GERHARD
IPC: F24S20/30
Filed: 1989-09-06
Abstract: The heat ray reflector is for a solar cooker or similar device. It is made up of a number of individual elements forming a parabolic mirror assembly. The reflective elements (3) are flexible round discs with a series of holes around the perimeter, which overlap each other to receive fixing elements (6, 7, 8). USE/ADVANTAGE - Heat ray reflector for solar cooker can be constructed under primitive conditions with cheap materials which need not be preformed.
Patent DE-3933329-A1 (DE)
Title: Drill core extraction grab - has claws on arms with parallel links to central actuating rod
Inventor: ZIEGLER WERNER DIPL ING
IPC: E21B25/10
Filed: 1989-10-06
Abstract: The grab extracts a core formed by a trepanning drill, and incorporates a mechanism with screwed rods. Two or more claws (1) are fixed to grab arms (2), which are in turn each attached by a pair of parallel links (4) to a central actuating rod (3), on which a guide (5) slides in its axial direction. This is attached by links (6) to the grab arms. Movement of the actuating rod in the lengthwise direction is by a thrust mechanism, e.g. with a screwed spindle (7) and tapped handwheel (8) supported at the guide end furthest from the grab. USE/ADVANTAGE - Safety grips cores in very limited space and borehole depth, and is useable over a wide range of diametersa.
Patent DE-3935199-A1 (DE)
Title: Rotary wire cropping shears - has top blade head with shaft moved axially by ram inside hollow shaft
Inventor: HAASE HARTMUT DIPL ING
IPC: B23D25/12
Filed: 1989-10-23
Abstract: The rotary shears crop rolled wire, mould at high speed, and has two counter rotating blade heads. The top head (4) is rigidly coupled to the shaft (7) inside a hollow shaft (11). The head shaft piston rod (8) of a double-acting hydraulic ram (9), protruding inside the hollow shaft. The parting mechanism, comprising the head, its shaft, and the piston rod, is movable in the axial direction. ADVANTAGE - Faster working rate and improved reliability.
Patent DE-3937041-A1 (DE)
Title: Sheet delivery unit for photocopier or re=enlargement unit - has sheet turning system for selective single or double-sided printing of sheet material
Inventor: MUELLER THOMAS
IPC: G03G15/23
Filed: 1989-11-07
Abstract: In the double sided printing mode, the sheet already printed on one side is fed to the photo conductor drum (2). The sheet turning system is formed by an intermediate storage (20) lying in a transport plane of the sheet material from and to the photo conductor drum (2), rotatable respectively about 180 deg.  in this plane coordinated with the termination of the single sided printing. The intermediate storage is coupled with a stepper motor (17), adjusted for the acceptance of a selected number of copies and is provided with a stop for front narrow side of the single side printed sheets as well as with a spring base. USE/ADVANTAGE - Sheet delivery unit for photo-copier or re-enlargement unit. Compact suitable for table unit and ensures high copying speed in mode 'multi-copying'.
Patent DE-4000231-A1 (DE)
IPC: F16D1/05
Filed: 1990-01-06
Abstract: This shaft coupling (10) is for connecting a first shaft (12) to a second shaft (14), each of said shafts having end flanges (16, 18), respectively, disposed in face-to-face relation. The coupling is provided with a key assembly (24) to transfer torque between the shafts, and a housing assembly to align and connect the shafts. The key assembly includes a key block (34) inserted into aligned peripherally accessible keyways (36, 38) formed in the respective flanges. The housing assembly includes a pair of semi-circular housing segments (28, 30) of generally U-shaped cross section which enclose the flanges, and diametrically opposed sets of pivotally mounted toggle bolt assemblies to facilitate quick connection and disconnection of the coupling. The housing sidewalls (48, 50) and the flange faces (40, 42) are compatibly tapered to facilitate face-to- face flange and arcuate alignment of the shafts. <IMAGE>
Patent DE-4001300-A1 (DE)
Title: Overhead conveyor with several buffer or transport monorail tracks - has transverse transfer mechanism for conveyor unit displacement from one to another parallel, buffer track
Inventor: MISCHLER ERNST
IPC: B65G1/04
Filed: 1990-01-18
Abstract: The overhead conveyor has a number of monorail buffer or transport tracks in parallel rows on the same plane, on which conveyor units move. A transfer mechanism moves one conveyor unit between parallel tracks at right angles in front of the tracks and consists of a carriage, on which a container moves towards the parallel tracks, when the transfer unit is stopped. The container has a rail (21) on a support (19), which is moved on ball bearings (16,17) on profiled bars (18), associated with the carriage. An electric drive-mechanism (12), fixed to the side (11) of the carriage plate (10) has a gear (13) cooperating with a toothed rack (14).
Patent DE-4001561-A1 (DE)
Title: Time-switched microwave equipment with electronic power controller - has opto-isolator in connection between time switch and mechanical switch operated by closure of door
Inventor: STUERZL WILHELM
IPC: G08C23/06
Filed: 1990-01-20
Abstract: A door interlock switch (22) is wired in series with an AC voltage capacitor (28), a rectifying diode (30) and a bias resistor (32) across the mains supply (UN). In parallel with the rectifier (30) an LED (34) transmits pulses at the mains frequency through a light-guide (36) to a phototransistor (38) in the time-switch circuit. The opto-electronic isolation prevents disturbance of the time-switching by peaks of voltage induced in the connection by switching processes taking place in the power control circuit. ADVANTAGE - Microprocessor is more surely protected by  avoidance of capacitive coupling to connecting light-guide.
Patent DE-4001595-A1 (DE)
Inventor: GEKE JUERGEN DR
IPC: C11D1/29
Filed: 1990-01-20
Abstract: PCT No. PCT/EP91/00039 Sec. 371 Date Jul. 20, 1992 Sec. 102(e) Date Jul. 20, 1992 PCT Filed Jan. 12, 1991 PCT Pub. No. WO91/10718 PCT Pub. Date Jul. 25, 1991.The invention is a demulsifying cleaning preparation comprising a mixture of nonionic surfactants, anionic surfactants, monocarboxylic acids having 8 to 9 carbon atoms, builders and auxiliaries. The particular proportions of surfactants permits demulsification and rapid separation of oily materials from the detergent mixture.
Patent DE-4002274-A1 (DE)
Title: Window lifting drive - has slide face of spring material snapping over guide rail rib
IPC: E05F11/48
Filed: 1990-01-26
Abstract: The drive is for a window-life travelling along a guide rail, and has slides working against the latter, and a chamber accommodating two driving-rope thimbles. The rope passes through slots in the chamber end walls. - The guide face (22) of one slide (2) at least is of spring material, to snap over one of the ribs (82) of the guide rail (8). The thimble chamber forms a rib (4) on the driving member, working between the ribs (82,94) of the rail.
Patent DE-4003134-A1 (DE)
Title: Position control for moving film or paper - uses pairs of photosensitive elements to monitor movement of sprocket holes or alignment markings
Inventor: FAUST PETER MARTIN DR
IPC: B65H23/02
Filed: 1990-02-02
Abstract: The edge of the moving film/paper has regularly spaced sprocket holes (101) to move the feed, or appropriate alignment markings. The film edge is passed under the sensing beam (102) while two equally large photosensitive surfaces (103, 104) monitor the movement of the holes. The surfaces meet along a line parallel to the feed direction. The variable part of the surface signals are processed to monitor the film edge position. Suitable filters remove the DC part of the output signals, leaving the variable components to be processed. The processing enables the control to exactly compute the position of the sprocket holes. USE/ADVANTAGE - Non-contact alignment monitoring, rapid film speed rate possible. High speed printers.
Patent DE-4007347-A1 (DE)
Title: Cutting tool for coal cutting machine - is retained in tool holder pocket by curved member with concentric surfaces
Inventor: RASSMANN CHRISTOPH
IPC: E21C35/19
Filed: 1990-03-09
Abstract: The cutting tool (2) is mounted in a pocket (4) of the tool holder (1).  The tool holder has a rear wall (7) with a projecting rib (12) which engages a recess (14) in the tool (2). The opposite side of the tool (2) has a semi-circular recess (15) which is supported by a curved member (18).  The curved member has concentric surfaces (19,20) with the outer surface (20) abutting against the tool (2) and the inner surface (19) being supported on a shaft (9) which is mounted transversely in the pocket (4).  The curved member (18) is locked by a radially aligned pin (23). USE - Coal mining.
Patent DE-4008393-A1 (DE)
Title: Screening display screen from HF fields - with earthed conductive grid in transparent sealing cpd. holding protective panel in front of screen
Inventor: WERNER HERMANN
IPC: H01J29/86
Filed: 1990-03-16
Abstract: Display screen is protected from interference by HF fields with a conductive grid (3) over the outer face of the screen.  The grid is embedded in a transparent sealing cpd. (4), with which a protective pane (5) is held in front of the screen. The edge of the grid projecting beyond the sealing cpd. is in contact with the whole periphery with a ground connection. ADVANTAGE - Screen characteristics are improved without affecting standard functions.
Patent DE-4010234-A1 (DE)
Title: Pipe connection esp. for cable protection conduits - has inner and outer side smooth wall course in region of pipe connection places suitable for transmitting traction
Inventor: WACHSMUTH PETER
IPC: F16L37/084
Filed: 1990-03-30
Abstract: One of the two pipe elements to be connected is provided with at least two elastic spring locating projections (9,9'), with at least one radially deflected away on the other pipe element, which is determined and formed to give an axially effective positive engagement, facilitating a tension force transmission, with a counter profile arranged in the surface of the other pipe element (2). The pipe elements are two pipe ends standing opposite each (1,2) other and are to be connected. One of the pipe elements can be a connecting part (18) enabling the connection of two identical pipe ends (1). USE/ADVANTAGE - Easy to manipulate at building sites, and esp. facilitates laying in ground.
Patent DE-4010310-A1 (DE)
Inventor: MAENNER OSWALD DIPL ING DR
IPC: H03H9/145
Filed: 1990-03-30
Abstract: Surface wave transformer with different positions and widths of the terminal fingers F1, F2 and F3 from those of the other transformer fingers for the purposes of suppressing reflections otherwise occurring at these terminal fingers.
Patent DE-4010879-A1 (DE)
Inventor: LIESENFELD BRITTA
IPC: C01B33/40
Filed: 1990-04-04
Abstract: The description relates to a simplified process for producing swellable laminated silicates of the smectite type by the hydrothermal pressure treatment of mixtures and/or co-precipitates of laminated silicate-forming components in the presence of water. In the novel process, a reaction mixture substantially free of an excess of bases and foreign bodies and containing at least predominantly oxidic and/or hydroxidic reactants in a stoichiometric ratio is introduced into the hydrothermal reaction stage. The reaction product obtained is dried to give the solid mineral product preferably without prior washing and more finely divided if desired. In a preferred embodiment, the invention provides for the introduction of the stoichiometrically required quantity of alkalising sodium compound in the form of water-soluble sodium silicate compounds.
Patent DE-4017084-A1 (DE)
Title: Compsn. for increasing stress tolerance of crops - contg. mono- or di:ethanolamide derivs. of fatty acid mixts.
Inventor: BERGMANN HANS DR SC NAT DR
IPC: A01N37/20
Filed: 1990-05-26
Abstract: Compsn. for increasing the stress-tolerance, esp. the dry-tolerance of crops, esp. cereal crops, comprises: (a) mono-or diethenolamide derivs. of fatty acid mixts., of formula (I), esp. derived from fatty acids of plant origin, such as Brassica naps ssp. napus and Brassica rapa ssp. oleifera, with a C22:1, C18:1, C18:2 and C18:3 fatty acid content greater then 50%; and (b) conventional carriers and auxiliaries. R1 = plant fatty acid residue with 13-21C atoms; R2 = H or CH2CH2OH. ADVANTAGE - The compsn. is toxicologically favourable to known compsns. which inhibit transpination but which also inhibit photosynthesis on plant metabolism. Prepn. of the compsn. is economical. (5pp Dwg.No.0/0)
Patent DE-4017250-A1 (DE)
Title: Adjustable plaster edge lip and tongue profile - is for shutter box and compensates deformed edges in functional unit as locating rabbet for inspection cover
Inventor: DUBIEL WERNER
IPC: E04F19/08
Filed: 1990-05-29
Abstract: To the base (1) of a U-profile (15) which encompasses the box wall (16) is connected a lip profile (2). The base forms a long groove (7) in connection with the lip profile and in this groove is integrated a movable tongue profile (3) which has a point (6) which is the reason for the introduction tolerance in the open side of the groove. - The tongue profile has a somewhat triangular or rounded stop nose formation (5) on its underside near to the point and a counter stop nose formation (4) is provided on the upper side of the lip profile (2). In front of the counter stop (4) is a stabilising nose formation (14) which is near to the open upper side of the lip profile (2) and supports the tongue profile (3) in its withdrawn end position.
Patent DE-4018616-A1 (DE)
Title: Frequency converter for quadrature modulator or demodulator - using heterodyne signal generator providing quadrature signals with 90 degree phase-shift
Inventor: TRAENKLE GUENTHER DIPL PHYS
IPC: H03D7/14
Filed: 1990-06-11
Abstract: The frequency converter for a quadrature modulator or demodulator uses a heterodyne signal generator (TG). An associated regulating circuit stabilises the 90 degrees phase shift between the 2 quadrature heterodyne signals (TI,TQ). Pref. the heterodyne signal generator (TG) contains an amplifier, controlled by an oscillator signal (LO), a further regulating circuit containing a symmetry detector for the pulse ratio of the amplifier output signals, for maintaining a pulse ratio of 0.5. A quadrature phase divider pref. uses a frequency doubler and a master slave flip-flop in series, the outputs of the master stage and the slave stage providing here 2 quadrature signals (TI,TQ).
Patent DE-4020554-A1 (DE)
Title: Device for equalising imbalance in washing during spinning - in drum washing machines, with chambers filled with imbalance liquid
Inventor: STAMMINGER RAINER DIPL PHYS DR
IPC: G01M1/32
Filed: 1990-06-28
Abstract: Device for equalising the imbalance of the washing during the spinning process in program-controlled drum washing machines is equipped with chambers, each of which is connected to a feed groove located on its rear end. The chambers are positioned on the rear end of the washing drum and run in succession in the peripheral direction of the drum. The chambers can be filled radially with an imbalance liquid. ADVANTAGE - The unit has been simplified and can be integrated into standard washing machine for a reasonable cost.
Patent DE-4025550-A1 (DE)
Inventor: WAECHTLER ANDREAS DR
IPC: G02F1/13
Filed: 1990-08-11
Abstract: New phenylcyclohexanes are disclosed, having formula (I), in which n is 0 to 7, Q<1> and Q<2> represent H, or one of these residues may also represent CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluor-1,4-phenylene or a single bond, X is F, Cl, -CF3, -CN, -OCF3 or -OCHF2, and Y and Z represent independently of each other H or F, provided that when A is a single bond, Q<1> = Q<2> = H and at the same time X = CN and Y and/or Z represent F.
Patent DE-4034574-A1 (DE)
Title: Thermoplasts modified with cyclic arylene sulphide oligomers - having lower melt viscosity and improved UV resistance, used for prepn. of shaped articles, films and fibres
Inventor: HEINZ HANS-DETLEF DIPL CHEM DR
IPC: C08L67/02
Filed: 1990-10-31
Abstract: Cyclic oligoarylene sulphides (I) are used to modify thermoplasts (II). ((I) are obtd. by reacting p-dihalo-aromatic cpd. with opt. hydrated Na sulphide in dipolar aprotic solvent then extracting (I) and, depending on reaction conditions, minor amt. of linear oligoarylene sulphides into, e.g. toluene, from the arylene sulphide polymers obtd.). Mixts. (III) comprise (A) 99.99-85% (all pts. wt.) (II) (B) 0.01-15% cpd. of formula (I), where Ar = 6-24C arylene; n = 3-25; ((I) opt. occurring as mixt. and opt. contg. linear oligoarylene sulphides with Ph, chlorophenyl, or mercaptophenyl end gps.), and opt. (C) 1-150, on (A) + (B), other additives with proviso that if (II) is a polyarylene sulphide, Ar in formula (1) does not correspond to arylene residue in (II). (II) is pref. polyamide, partic. polyamide 6 or polyamide 66 or copolyamide based on these; polyester, partic. PET (IV) or polybutylene terephthalate; copolymer of (alpha-methyl)styrene, (meth)acrylonitrile, butadiene, and opt. an acrylate; or polycarbonate, partic. bisphenol A polycarbonate. USE/ADVANTAGE - (III) for prepn. of shaped articles, films, fibres, opt. reinforced semifinished prods. and composites. (III) have lower melt viscosity than (II), increased UV stability. (0/0)
Patent DE-4038043-A1 (DE)
Inventor: WALTER MANFRED DR
IPC: C08J9/00
Filed: 1990-11-29
Abstract: Expandable styrene polymers, containing 
 
  a) a styrene polymer 
  b) from 1 to 10% by weight, based on a), of a saturated C3- to C6-hydrocarbon as blowing agent, and optionally 
  c) conventional assistants in effective amounts, 
 characterised in that the benzene content is less than 1 ppm and the styrene content is less than 2000 ppm.
Patent DE-4038516-A1 (DE)
Inventor: JENKNER ERWIN
IPC: B26D7/06
Filed: 1990-12-03
Abstract: A method is described with the aid of which closely juxtaposed stacked workpieces can be moved on a low-friction work support surface without said workpieces being displaced with respect to one another under inertia influences. 
<??>For this purpose, the stack is pressed onto the work support surface and subsequently a pressing and transport unit which generates the pressing force is controlled in the movement direction. 
<IMAGE>
Patent DE-4039258-A1 (DE)
Title: Therapeutic device for strengthening walking muscles of invalids - has horizontal flat seat with incline adjustable swivel foot rest with feet loop
Inventor: ARETZ WERNER
IPC: A63B23/04
Filed: 1990-12-08
Abstract: The device for treating muscle weakness has a horizontal flat seat surface with a vertical backrest and a foot rest swivel fitted at the foot end of the seat surface whereby the inclination of the foot rest can be set between 0 and 90 deg. relative to the seat surface by means of retaining rods which can hang at the sides in stages on holders attached to it. The foot rest is provided with loops for fixing the feet and in the knee area of the seat surface there is a strap for the legs of the patients.
Patent DE-4041704-A1 (DE)
Title: Method of producing blocks of wood for pallets - involves feeding suitable lengths of round wood into rectangular framed splitting block
Inventor: JEGLER KARL
IPC: B27M1/04
Filed: 1990-12-24
Abstract: A method of producing blocks of wood, particularly for pallets, involves cutting round wood into suitable lengths with parallel swan faces and subsequently splitting them into squared timber. The offcuts are discarded. The splitting device consists of four blades (5) which are set in the form of a square or rectangule and mounted on a frame (2), forming a rectangular hole through which the wood is forced. Backing plates (4) are bolted on to the frame (2) to secure the blades (5). USE/ADVANTAGE - All sorts of odd timber which would normally be waste can be used.
Patent DE-4100966-A1 (DE)
Inventor: DROTT PETER
IPC: B60T8/32
Filed: 1991-01-15
Abstract: A self-contained wheel brake subassembly for motor vehicles has a hydraulic wheel brake (12), a hydraulic pump (42) for generating the actuating pressure which recovers the energy required for actuating the wheel brake (12) from the kinetic energy of the vehicle, via the vehicle wheel, a pressure accumulator (6) and electrically controllable valves (9, 10, 11) for regulating the braking pressure. The wheel brake subassembly supplies itself with energy, saving fuel and relieving the vehicle's electric supply system. All essential components of the subassembly can be pre-mounted together with the stub axle (16) of the vehicle and can be incorporated as a unit into the vehicle, preferably in a fully automatic manner by means of a robot, advantageously reducing final assembly costs.
Patent DE-4104866-A1 (DE)
Title: Energy coupling for relatively rotating systems - has rotatable carriage supporting overlying supply leads extending between stationary and variable input and output points
Inventor: HERKENRATH KARL
IPC: H02G11/00
Filed: 1991-02-17
Abstract: The energy coupling for relatively rotating systems uses a carriage (5) displaced peripherally around a guide path (3, 4) with an inner and outer ring. This supports axially stacked lines (22, 23, 24) for coupling stationary input point with a variable output point. The lines (22, 23. 24) are supported directly above one another by guide elements (21) supported by guide rails (11, 12) attached to the carriage (5), allowing relative movement of the guide elements (21) in the peripheral direction. The guide elements (21) are provided by flexible elastic bands (25, 26) coupled via a pair of holders (29, 30) supported by opposing clamps (32). USE - For electrical supply of underground mining plant.
Patent DE-4105407-A1 (DE)
Inventor: LANDES KLAUS PROF DR
IPC: H05H1/42
Filed: 1991-02-21
Abstract: The plasma spray gun contains an indirect plasmatron for generating a long arc, having a plasma channel (4) between the cathode arrangement (1, 20) and the anode ring (3). The cathode arrangement has a central insulation body (21) which projects into the cavity (22) of an inlet nozzle (5) of the plasma channel (4). The plasma gas is introduced into the inlet nozzle (5) through an annular channel (23) between the insulation body (21) and the nozzle wall. A plurality of rod-shaped cathodes (1) which are embedded in the insulation body (21) run parallel to one another and are arranged distributed in the circle around a central axis (2) whose active ends (63) project out of the insulation body (21) into the nozzle cavity. The spray material (SM) is supplied to the cathode-side end of the plasma channel (4) through a tube (24) which extends along the central axis (2) through the insulation body (21) and opens into the nozzle cavity, the cathode ends (20) projecting beyond the mouth (25) of the tube. By means of a high energy concentration in the nozzle cavity, energy is supplied to the spray material in this region and through the long arc along the entire plasma channel, so that the spray material emerges from the gun in the fused state with high acceleration. The anode ring has no nozzle function and can therefore be wide enough for the spray material not to impinge on it. <IMAGE>
Patent DE-4105751-A1 (DE)
Inventor: HEINEMANN ULRICH DR
IPC: A01N25/30
Filed: 1991-02-23
Abstract: Substituted pyridylpyrimidines have formula (I), in which A and Ar have the meaning given in the test of the description. Also disclosed are their preparation, their use and new initial products. The compounds having formula (I) may be prepared from appropriate salts of 2-pyridylamidine with appropriate enamines; said enamines are also new and disclosed by the invention, and may be prepared from appropriate ketones with appropriate formaldehyde derivates.