baber/WOPTO huggingface dataset:
Patent DE-3907159-A1 (DE)
Inventor: JAEGER HUBERT DIPL CHEM DR
IPC: C01B31/04
Filed: 1989-03-06
Abstract: By the addition according to the invention of compounds of magnesium, calcium, strontium and barium, such as the carbonates, oxides, carbides and fluorides of these metals not soluble in binder pitches to "green mixtures" of coal tar pitch cokes and binders therefor before the shaping of the mixtures thus produced, shaped coke bodies are obtained after the shaping and firing which do not have any or have only a very slight irreversible thermal expansion in the temperature range of 1400 to 2000 DEG C.
Patent DE-3911933-A1 (DE)
Title: Print master preparation equipment - provides image to retain ink on hydrophilic substrate
IPC: G03G15/22
Filed: 1989-04-12
Abstract: The substrate of hydrophilic material is passed under a process roller (20) of electrophotographic processing. The image is prepared as a toner image on the roller and is transferred to the substrate. The image is thermally fixed on the substrate and is then ready for use. The toner traps ink/paint for the subsequent print processing. The process roller is cleaned as a conventional electrophotographic layer and can be reused. The substrates can similarly be reused. ADVANTAGE - Cost effective print master process; min. number of failure points.
Patent DE-3914564-A1 (DE)
Title: Sectional driving machine in shield - has swinging arm with cutting head designed to cut sloping face
Inventor: HALLER HERBERT
IPC: E21D9/08
Filed: 1989-05-03
Abstract: The shield driving machine comprises a sectional driving machine located in a shield which drives towards the face.  The machine has a cutting head on an arm which can swing at right angles to the shield axis in a carriage in a revolving cradle (15). The axis (22) of the cradle (15) forms an acute angle with the shield axis (9) in order to cut a sloping face. USE/ADVANTAGE - The machine is designed especially to cut a sloping face.
Patent DE-3916508-A1 (DE)
Title: LC medium contg. fluoro or di:fluoro phenylene cpd. - to induce smectic C-phase and suppress smectic phase with high order parameter of other cpds.
Inventor: REIFFENRATH VOLKER
IPC: C09K19/42
Filed: 1989-05-20
Abstract: Liquid crystal (LC) medium with a smectic C phase contains at least 2 LC components A and B. Component A consists of cpd(s). with an orthogonal smectic phase and/or smectic phases with higher order parameter and opt. a smectic C phase. Component B consists of one or more cpds., including cpd(s). with a smectic C phase if component A contains no cpds. with smectic C phase.  The novelty is that component B contains cpd(s). (I) with a 2-fluoro- or 2,3-difluoro-1,4-phenylene gp. to suppress the smectic phases with higher order parameter. (I) is of formula (IA): R1-2  = 1-15C alkyl or 3-15C alkenyl, opt. with a CN substit. or one or more F or Cl substits., in which one -CH2- gp. may be replaced by -O-, -S-, -CO-, mm or -O-CO-O- and one of R1 and R2 also contains an organic gp. Q asterisk with an asymmetrical C atom inducing chirality; A1-2  = 1,4-phenylene, opt. with one or two F, Cl, Me and/or CN substits., in which one or two CH gps. may be replaced by N; 1,4-cyclohexylene, in which one or two non-adjacent CH2 gps. may be replaced by O and/or S; 1,4-bicyclo(2,2,2)octylene; 1,3,4-thiadiazol-2,5-diyl; ; or 1,2,3,4-tetrahydronaphthalen-2,6-diyl; Z1-2 (i) or a single bond; X = H or F; m and n = 0, 1 or 2 and (m+n) = 1 or 2; Q asterisk pref. = a gp. of formula (II): Q1-2  = 2-4C alkylene, in which one CH2 gp. may be replaced by -O-, and/or -CH(CN)-, or a single bond; X' = halogen, CN, Me, CH2CN or OMe; R0 = H or a 1-10C alkyl gp. different from X and -Q2-R2; C asterisk = a C atom with 4 different substits.. The medium contains a chiral dopant with Ps greater than 5 nC/cm2. USE/ADVANTAGE - The medium has a spontaneous polarisation Ps greater than 1 nC/cm2 (claimed). It is claimed for use as dielectric in electrooptical systems. It is esp. useful for displays. It satisfies the requirements for an  phase existing in a wide temp. range around ambient temp., which is formed from chemically stable and pure cpds., and optimised LC material parameters,, e.g.  spontaneou
Patent DE-3917907-A1 (DE)
Inventor: ELLMANN SIEGFRIED DIPL ING
IPC: G01L23/22
Filed: 1989-06-01
Abstract: In a process for detecting and evaluating knock signals in the individual cylinders of an internal combustion engine, the signals from a pressure sensor arranged in a combustion chamber of the cylinder of interest are converted, after amplification and high-pass filtering inside a measurement window, to peak values of the knock pressure and/or knock strength values and the mean and variation are then calculated. Data for deriving a reference value for knock control and correction values for timing angle control signals stored in a characteristic field are then derived from these data and emitted by an engine management processing unit.
Patent DE-3920570-A1 (DE)
Title: Recovery of L-2-amino-4-methyl-phosphino-butyric acid - from prod. of enzymatic trans;amination of 4-(hydroxy)(methyl) phosphinyl-2-oxo:butyric acid by stepwise acid and pptn.
Inventor: KNORR HARALD DR
IPC: C07F9/30
Filed: 1989-06-23
Abstract: L-2-Amino-4-methylphosphinobutyrin acid (L-PTC) (I) is recovered from the reaction soln. obtd. in enzymatic transamination of 4-(hydrody)(methyl) phosphinyl-2-oxobutyric acid (III), and contg. (I), alpha-keto-glutaric acid (II), residues of (III) and L-glutamic acid (IV), by (a) concentrating the soln., (b) acidifying to pH 4.7-3.2 (4.2-3.7) with H2SO4, (c) sepg. the pptd. (IV), (d) acidifying to pH 2-1 with H2SO4, and extracting (II) and (III), (e) concentrating the aq. phase, bringing to pH 5-7 with NH3, with pptn. of (NH4)2SO4, and (f) recovering (I) from the filtrate by further concn. USE/ADVANTAGE - DL-PTC is a herbicide; (I) is the active form, whilst D-PTC is inactive. (I) is obtd. in high yield (94%).
Patent DE-3920933-A1 (DE)
Title: Cardboard box retaining bag for fine bulk goods - has one or more integral tongue portions folding inwards to form base layer
Inventor: ENGELS HENRICH
IPC: B65D5/44
Filed: 1989-06-27
Abstract: The container for transport and presentation of fine bulk goods comprises a non-rigid plastic bag within a cardboard box. The bix is formed from a cardboard blank (1) with at least one integral tongue-shaped cutout (14,15) which can be folded inwards to form an extra reinforcing base layer of the box.  There are pref. handle cutouts (8) in the other faces and moisture-repelling layers on the outer surfaces. USE/ADVNATAGE - Reusable lightweight box for powdered bulk goods is reinforced and allows view of inner bag.
Patent DE-3922582-A1 (DE)
Title: Reclining seat for RVs (motor homes)
Inventor: HOLONA GUENTER
IPC: B60N2/34
Filed: 1989-07-10
Abstract: A reclining seat for RVs has a seat frame (2) on which a backrest frame (4) is articulated in a manner such that it can be folded down into a horizontal position and secured, the frames each being upholstered. Articulated on the front side of the seat frame (2) is an upholstered subframe (6) for the feet, which can be pivoted into a horizontal position from a folded-away position. A lever arm (8), which is connected rigidly to the backrest frame (4), is connected to a hinge on the subframe (6) for the feet via a link rod (9) lying under the seat frame (2). <IMAGE>
Patent DE-3926146-A1 (DE)
Title: Electrical cable distributor housing foundation - has anchored platform providing sunken horizontal support surface for distributor housing
Inventor: GOEKELER WERNER
IPC: H02B1/50
Filed: 1989-08-08
Abstract: The foundation comprises a platform with a number of anchoring elements (2), used to maintain the support surface for the partially sunken cable distributor housing (3) in a horizontal plane, at the required depth. Pref. the platform is provided as a perforated rectangular grid, with an anchoring element (2) at each corner provided by a bolt fitted through a bore in the grid and clamped at the required height via a screw. The distributor housing (3) is pref. secured via metal fixing straps 5, extending horizontally across the grid. USE - For securing cable distributor housing within ground.
Patent DE-3929615-A1 (DE)
Inventor: LINZENKIRCHNER EDMUND DIPL ING
IPC: G05B13/04
Filed: 1989-09-06
Abstract: When an adaptation request arrives in the form of an adjustment to a manipulated variable or a set point, the resultant settling processes of manipulated variable and controlled variable are sensed and stored. The manipulated variables are supplied to a model (MD), the parameters T,n of which are modified in such a manner that the simulated response of the model excited with the stored variation of the manipulated variable corresponds as closely as possible to the stored real process response. The parameters of a controller (RG) are corrected, for example in accordance with the principle of the optimum of the absolute value, on the basis of the model which has thus been approximated to the process. The invention is used in adaptive controllers. <IMAGE>
Patent DE-3929880-A1 (DE)
Title: Semi-self alignment HV MOSFET - has semiconductor body with source region of opposite conductivity extending towards body surface
Inventor: GARNETT MARTIN E
IPC: H01L27/092
Filed: 1989-09-08
Abstract: The structure has a semiconductor body of first conductivity, which contains a source region of second conductivity extending up to the body main surface. It also contains a drain.region of second conductivity, spaced from the source region and also extending to the main body surface.  The source region on the main surface is surrounded by a field region of the second conductivity, while a second such field region surrounds the darin region. The two field regions are covered by field oxide regions. Over the main body surface is formed a conductive gate, while a channel region has its effective width defined by the spacing between the two field oxide regions.  A date oxide film is of min. thickness of 2,000 Angstroms. ADVANTAGE - Improved mfg. process and structural design.
Patent DE-3933988-A1 (DE)
Title: Diapositive slide viewer for graphic advertising - has shutter arrangement allowing at least part of illuminated surface to be masked or dimmed
Inventor: BOJAN OPEKA
IPC: G02B27/02
Filed: 1989-10-11
Abstract: The slide-receiving housing encloses an illumination system. A glass plate on the front side presents a rectangular illuminated surface. A shutter arrangement (10) is assigned to at least part of the illuminated surface (5). The shutter is of single or several (15,16,24) parts under the glass plate and over the illumination system of the viewer (1). The operating arrangement for the shutter (s) is coupled via a rod and mounted above the illumination system. The generating system is provided by one or more setting knobs (19). A built-in operating hours counter, a dimming switch and a light protection hood to prevent reflection from the slide (11) can be provided. The light source can be from small fluorescent tubes giving a light intensity of 5,000 lux and a light colouration of 5,000K. ADVANTAGE - Matches illuminated area to slide and light level to suit observer allowing fine detail and subtle differences to be discerned.
Patent DE-3937091-A1 (DE)
Title: Gymnastics or playground bar with support beams - has better designed connections between uprights and bar without gaps
Inventor: STRASSER SIEGFRIED
IPC: E04B1/26
Filed: 1989-11-07
Abstract: The gymnastics bar has at least two support beams pref. made from wooden bars and mounted at an angle to each other and supporting a horizontal cross bar. The support beams (3,4,5,6) adjoins with its end face (14,15) a corresp. contact bearing face which is provided on the top beam (9) and is connected to this top beam (9) by an end connection (16). The contact bearing face is mounted in a recess adapted to the cross section of the support beam in the area of the end face. USE/ADVANTAGE - Gymnastics bar. The connecting joints are safer and stronger with no interspaces which would retain rain or catch children's hair or clothes.
Patent DE-3937921-A1 (DE)
Inventor: HELLDOERFER REINHARD DIPL ING
IPC: G01C21/28
Filed: 1989-11-15
Abstract: Proposed is a method of navigation for vehicles, in which an automatic correction is made for the magnetic declination at given distance intervals, thus obviating the need for the time-consuming use of declination tables. The declination correction is made at given intervals of distance travelled eastwards or westwards, the measured bearing or declination being increased or decreased by a given amount. The method of correction is based on the fact that the isoclines in the region of Germany and West Europe run North-South and are almost parallel. Furthermore, feeding in way points enables a correction factor to be determined which can be used to correct the declination for the next leg.
Patent DE-3940245-A1 (DE)
Title: Cooling system for vehicle cab - makes use of air compressor and heat exchanger
Inventor: RICHTER GUENTER
IPC: B60H1/32
Filed: 1989-12-01
Abstract: The method is for cooling the cab of a vehicle. It involves an air compressor in which the compressed air flows through a cooler and over an expansion valve in a heat exchanger. During the expansion of the air in the heat exchanger cooling takes place which removes heat from the cab. USE/ADVANTAGE - Cooling system for a vehicle which does not require a refrigeration unit.
Patent DE-3941796-A1 (DE)
Title: Optical multilayer coating - with high anti-reflection, useful for glass and plastics substrates
Inventor: SZCZYRBOWSKI JOACHIM DR
IPC: G02B1/115
Filed: 1989-12-19
Abstract: An optical multilayer coating, esp. with high anti-reflection, comprises the following layer sequence starting from the front (viewing) side of the substrate: (i) a high refractive index layer (4), pref. of TiO2 and pref. of thickness 100 Angstroms +/-10%; (ii) a low refractive index layer (5), pref. of Al2O3 and pref. of thickness 400 Angstroms +/- 5%; (iii) a high refractive index layer (6), pref. of TiO2 and pref. of thickness 1040 Angstroms +/- 2%; and (iv) a low refractive index layer (7), pref. of SiO2 and pref. of thickness 940 Angstroms +/- 2%. Also claimed is prodn. of the coating by cathodic sputtering, esp. d.c. reactive magnetron sputter deposition, or by vapour deposition, (plasma-) CVD or pyrolysis. USE/ADVANTAGE - The coating is useful as an anti-reflection coating on glass, plastics foil or other transparent material, esp. substrate of refractive index 1.5-1.6. It has high light transmission, extremely low thickness (about 30% less than prior art coatings) and recuded prodn. costs since high thickness precision for the first two layers is not required.
Patent DE-4001202-A1 (DE)
Title: Ultrasonic microscope for testing surfaces of specimens mounted on rod
Inventor: OMURA YASUHIRO
IPC: G01H3/12
Filed: 1990-01-17
Abstract: A gas-tight chamber (23) in a casing (24) above a coupling liquid container (1) is connected to the container. A specimen rod (12) with an end-mounted specimen (8) is free to move up and down in the chamber and container. The specimen is sensed with an ultrasonic beam by a device in the container. A specimen insertion opening (26) in the casing is opened and closed by a valve (27). The specimen can be moved between sensing and replacement positions.
Patent DE-4001631-A1 (DE)
Title: Throttle butterfly for use in vehicle - has holes in butterfly and spindle overlapping for different amounts depending on how assembled
Inventor: HANNEWALD THOMAS
IPC: F02D9/10
Filed: 1990-01-20
Abstract: The spindle-mounted throttle butterfly contains a hole allowing a minimum amount of air flow in the idling position. The hole (7) is in a part of the butterfly (2) covered by the spindle (1), which has a corresponding hole (5). The two holes are on opposite sides of the spindle axis (6) and/or are offset to opposite sides of the transverse centre line of the butterfly. Thus the amount of overlap between the holes is variable by assembling spindle and butterfly in different relative positions.
Patent DE-4006206-A1 (DE)
Title: Stamp pad automatic re-impregnation system - has control body with distribution chamber preceding ink vessel outlets
Inventor: BLIESENER KNUT
IPC: B41K1/54
Filed: 1990-02-28
Abstract: The automatic re-impregnation system is for a stamp pad, having an ink vessel permanently connected via a capillary system to the pad. The ink vessel (10) has outlets in its underside, also one or more vent ports (20,22). The outlets are preceded by a capillary control body, adjacent to which is an ink-distribution chamber. From this distribution capillaries branch off to the underside of the pad cushion. USE/ADVANTAGE - Leakproof automatic ink re-impregnation system with metered ink supply to cushion.
Patent DE-4021248-A1 (DE)
Inventor: LIEBRICH NICOLE
IPC: A47B21/00
Filed: 1990-07-04
Abstract: A kit for making office desks with at least one desk top (2), bearers (4) to support the desk tops and supports (6) with footrests. There are bearing arms (20) for the desk tops (2). Connecting components (10) interconnect the bearers (4) with the supports (6) and the bearing arms (20) and possibly supporting arms (26) for additional components and/or superstructures. The bearers (4) are rectangular-section tubes. The connecting components have a lower section (12) with a rectangular recess (14) open at the top to fit a bearer (4). The lower part (14) has a channel (24) at the bottom, in its longitudinal direction, to take the upper end of a support (6) or the end section of one of the supporting arms (26). To close off the recess (14) of the lower part and to clamp the lower part to the bearer (4) there is a cover plate (16) or the end piece of a bearing arm (20) or a spacer (56). With such a kit it is very easy to set up an office desk an only a limited number of different parts is needed. It is possible to fit a horizontal cable channel (40) with a hinged cover (44) at the back of one of the bearers which is accessible only when the desk top is pulled forward and has a set of brushes (46) for taking cables out between the edge of the closed hinged cover (44) and the rear edge of the cable channel (40).
Patent DE-4024939-A1 (DE)
Title: Contact material compsn. for use in electrical switches - consisting of silver tin oxide for one of contacts and pure silver silver with low nickel or with copper contact for other contact
IPC: H01H1/023
Filed: 1990-08-06
Abstract: Electrical contacts made of silver and tin-oxide, and possibly other additives are used in combination with an opposing contact of Ag with 3% Cu. Also claimed is the use of pure Ag and of Ag with not more than 1% Ni as the opposing contact. USE/ADVANTAGE - The performance of the Ag/SnO2 contacts is pref. to that of the current Ag/CdO contacts. This is because of the environmental damage which can result from the use of Cd-cpds. Other advantages are that the Ag/SnO2 contacts are thermally more stable which shows in its reduced burn-off rate and longer life. The material is also easier to make and to machine.
Patent DE-4038915-A1 (DE)
Title: Pen with ball point - is curved like user's fingers for ease of holding
Inventor: SCHNEIDER HELMUT
IPC: B43K23/004
Filed: 1990-12-06
Abstract: The ballpoint pen (1) consists of a housing with writing cartridge. The pen is curved in axial direction, over its complete length. The curvature corresp. approx. to that of a slightly bent, relaxed index finger. The radius of curvature, measured along the body axis, is approx. 12cm. USE/ADVANTAGE - Curved pen with ball point prevents tiredness and cramp.
Patent DE-4101823-A1 (DE)
Title: Printing press gear train - has gear taking up backlash in bearing sliding in frame
Inventor: HEFFTLER VICTOR DR ING
IPC: B41F21/05
Filed: 1991-01-23
Abstract: The gear train is particularly for driving the vibratory feed of a rotary sheet-printing press, and comprises driving, feed drum and printing cylinder gears. A gear (25) taking up backlash is provided, working in a bearing (26) sliding via a drive in the frame.  The bearing can be in an eccentric lever (27) turned in opposition to a tension spring (29). ADVANTAGE - Compact, with low rate of wear and improved quality of printing.
Patent DE-4104596-A1 (DE)
Title: Self-hardening water soluble mixt. for chemically and biologically resistant cement - includes cation forming salts, oxide(s) or hydroxide(s) and complexing agents
IPC: C04B28/26
Filed: 1991-02-14
Abstract: Self-hardening water soluble mixture contg. an inorganic binder system based on water soluble silicate and/or reactive silicic acid and an hydraulic setting binder system based on aluminate cement also contains fully or partially water soluble salts, oxides or hydroxides of multivalent metals which form multivalent cations in aqueous alkali solution and inorganic or organic complexing agents which form complexes of the metal cations in alkaline situ. USE/ADVANTAGE - For producing mouldings, coatings and injection moulded bodies after pressing. End product has high resistance to chemical, mechanical and biological attack. It can harden between 5 min. and 2 hr. depending on the technological demands
Patent DE-4105935-A1 (DE)
Title: Wind vane for turbine or wind power plant with backwardly curved lateral parts - automatically picks up wind force, with vibration-reducing additional bodies incorporated, vane side edges having cross-set fillets
Inventor: SCHUBERT WERNER DR MED
IPC: F03D1/06
Filed: 1991-02-26
Abstract: The additional bodies fitted to all vanes of a turbine for oscillation and vibration redn. are made of resistant material, such as metal, plastic or material contg. aramid- or carbon- fibres. Such bodies serve to collect wind force at the peripheral surface of the vane in amplification of the turbine power. A fillet or a raised formation against the wind is incorporated on the side edge of the vane for collection of wind energy. Such fillets are aerodynamically fixed on the front surface of the vane, and the pre-formed expandable additional bodies tangentially vibrate with the vane, having a feed line for pressure gas which passes through the vane and at least one part of the axis. Pressure bottles for the gas used for the expansion of the additional bodies and of hollow variably expandable cross fillets on the turbine vane are also available. ADVANTAGE - To restrict the strong oscillations and vibrations which can occur on the vanes of a turbine or wind power plant. . r
Patent DE-4106728-A1 (DE)
Title: Acousto=optical modulator for speech analysis - has line grating in front of ends of incoming and outgoing optical fibres
Inventor: WUERZBERGER HEINZ
IPC: G01L9/00
Filed: 1991-03-02
Abstract: The acousto-optical modulator has an objective lens (1) with the ends of 2 optical fibres (3, 4) lying at equal distances on either side of its optical axis in the focal plane (F) of the objective lens (1). A mirrored membrane (5) lies on the opposite side of the objective lens (1) perpendicular to the optical axis. A line grating (2) lies in front of the ends of both optical fibres (3, 4) with a line spacing corresponding to the line width, the lines extending at right angles to a line extending through the centre of the membrane and the point of intersection between the optical axis and the membrane. USE/ADVANTAGE - For sound emission analysis in speech range and as differential pressure pick-up for small pressures. High sensitivity with reduced complexity.