baber/WOPTO huggingface dataset:
Patent DE-2004255-B2 (DE)
Title: Free-standing wooden step for staircase - consists of several parts fixed together and is without sides
IPC: E04F11/032
Filed: 1970-01-30
Abstract: The free-standing wooden steps for a staircase without sides consists of at least two wooden parts glued together to form one piece (20). The wooden step is wider on the outside of the staircase than on the inside. One wooden section extends the entire length of the step along the tread edge (28) with the wood fibres of this part running parallel to the edge of the tread (28). The second wooden part extends the whole length of the step, and the wood grain of the back wooden section runs parallel to the back lengthwise edge. The separate grains of the two wooden sections stuck together along a joint abut in herringbone fashion in the direction of the shorter wide side of the step at an acute angle.
Patent DE-2027767-B2 (DE)
Title: Massage couch with padded cover - has telescopic legs and braces with headrest and support frame
IPC: A61B5/22
Filed: 1970-06-05
Abstract: The two-piece, cushioned massage couch consists of a hinged frame with a flexible covering. The framework (2) is constructed from hollow frame sections of square or circular cross-section. Mountings for longitudinal slides for massage accessories are provided on the framework (2). Lockable, adjustable support leg frames of L-shape are provided which allow the flexible couch top to be varied in position and angle as required. Diagonal braces (7) and longitudinal struts (8) are provided, with transverse connections (6) between the four couch legs (6). The support frames are bolted into the framework sections (2). The couch has a headrest on an adjustable linkage bolted to one end.
Patent DE-2129380-B2 (DE)
Title: Automatic telephone exchange for data switching - with high speed data transmission, includes device for connection monitoring
IPC: H04L12/00
Filed: 1971-06-14
Abstract: An extremely short release time (5 ms) is achieved when a clearing signal appears. Time delay means are allocated to the switching means, so that a very long release time (5 s) is achieved in case of line faults; the time delay means can be disconnected by further monitoring and control switching means activated by a special signal transmitter before the clearing signal; the special signal is generated by a 1:1 keying ratio for pulses of a given frequency through a transmitter in a subscriber station pref. in the remote control unit. It is applied to the connection only for a limited time (20 ms) through a contact operated with a delay by a clearing key; after the contact operation, the polarity accepted as clearing criterion, e.g. start polarity, is applied to the line.
Patent DE-2133452-B2 (DE)
Title: Closure flap for flue gas ducts - has curved portion which bears against seals in housing to give tight seal
IPC: F23L13/00
Filed: 1971-07-06
Abstract: Rectangular closure flap for flue gas and air ducts has continuous planar sealing seats in the flap frame, and sealing surfaces on the flap wing. Disc segments are arranged at the ends of the flap wings which support at their curved porition the adjacent sealing surfaces. The planar sealing seats are arranged with the same curvature in the flap frame concentrically to the sealing surfaces. The rotary flap shaft is positioned eccentrically across the rear face of the flap wing. Safe closure of the ducts is ensured.
Patent DE-2136570-B2 (DE)
Title: Standard lamp base with discs - has radially slotted disc for cable and disc with column collar
IPC: F21V21/06
Filed: 1971-07-22
Abstract: The standard lamp has a tubular stand on a base with a round cover plate. The metal discs of the base are held by an inwardly turned edge of the cover plate. The upper disc has a threaded sleeve for the supply cable. The latter is fitted without significantly increasing the thickness of the base. One of the discs has a slot reaching up to the standard lamp column for carrying the flex. The top disc has an upwardly drawn central collr for holding the column. The bottom disc has a downwardly bulging radial part for accommodating the lower part of the flex in the slot. The flex is held with a coupling bracket.
Patent DE-2158445-B2 (DE)
Title: Piston seal for piston-operated engines working under high pressures - has piston ring closing gap between piston and cylinder when expanding under action of operating heat
IPC: F16J9/00
Filed: 1971-11-22
Abstract: A piston seal for piston-operated engines working under high pressures comprises at least 1 non-slotted (non-split) piston ring arranged, with radial tolerance, in an angular groove, the outer diameter of the piston ring being dimensioned in such a way that it seals the gap between piston and cylinder under the action of the operating heat. The piston ring has a groove extending about its periphery adapted to receive an auxiliary piston ring which seals the gap between cylinder and non-slotted piston ring until the latter is heated to operating temp. Use of a non-slotted piston ring which reaches its rated sealing efficiency when operating conditions (incl. operating heat) have been attained.
Patent DE-2216412-B2 (DE)
Title: Control circuit for static inverter - uses carrier wave generator to fix thyristor trigger points to produce pulse-width modulated output
IPC: H02M7/539
Filed: 1972-04-05
Abstract: The control circuit has an auxiliary rectangular voltage of constant amplitude passed to an integrator whose output is a symmetric triangular voltage having an amplitude inversely proportional to the carrier wave's frequency. The carrier wave is derived from the static inverter's output. The reference voltage that aids in fixing the triggering points of the inverter's thyristors is a d.c. voltage whose magnitude is inversely proportional to an integral multiple of the basic output frequency from the inverter. The advantage lies in using the carrier to fix the trigger points whilst keeping the voltage/frequency characteristics constant.
Patent IE-S66316-B2 (IE)
Title: A container for fuel receptacles
Inventor: COLLINS MARTIN
IPC: F24B15/04
Filed: 1995-01-18
Abstract: A container for fuel receptacles is described, and comprises an outer container (1) of rectangular shape and having a lid (5). The container (1) has an inner horizontal partition (8) which is provided with two circular openings (9). A fuel bucket (10) is removably suspended in each of the openings (9).
Patent JP-H026876-B2 (JP)
IPC: D21D1/30
Filed: 1979-02-17
Abstract: A method and apparatus is provided for controlling the effect of centrifugal force on pulp stock while being ground in the grinding space of a defibrating apparatus defined between a pair of grinding discs which rotate relative to one another in a fluid environment under superatmospheric pressure and corresponding elevated temperature. The grinding space includes a central portion, a first outwardly extending grinding space and a second outer grinding zone extending at an inclined angle from the first grinding zone. Pulp stock to be ground is introduced into the central portion and accelerated through the first and second grinding zones by centrifugal force generated by the rotating discs. The inclined grinding zone serves to split the centrifugal force into a vector perpendicular to the direction of flow of the pulp material and a vector aligned with the axial flow to reduce the accelerating force on the pulp grist in the direction of outward flow. By reducing the outward acceleration, the dwell time of the grist in the second grinding space is increased, resulting in optimum utilization of the entire grinding space for optimum refining efficiency.
Patent JP-2855744-B2 (JP)
IPC: G01S17/04
Filed: 1990-01-30
Granted: 1999-02-10
Abstract: A reflective-type photoelectric switch projects emitted light from a light-emitting element toward a detection zone by a light-projecting optical system, and guides reflected light from an object to be detected in the detection zone to a light-receiving element by a light-receiving optical system. A special optical element is used in part of at least one of the two optical systems. The optical element functions to diverge light in a direction parallel to a plane containing the optic axes of the light-emitting and light-receiving elements, and condense light in a direction perpendicular to the same plane. As a result, it is possible to detect, with excellent sensitivity, both an object which is far from the switch and an object very near the switch.
Patent JP-4224629-B2 (JP)
IPC: C07C255/44
Filed: 1997-01-31
Granted: 2009-02-18
Abstract: Preparation of 4-oxo-imidazolinium salts of formula (I) comprises cyclisation of an  alpha -acylaminonitrile of formula (II) in a non-aqueous solvent in the presence of a lower alcohol and a strong acid of formula HA: where R1, R2 = 1-10C alkyl, 2-10C alkenyl, 3-7C cycloalkyl or optionally substituted aryl, arylalkyl, heteroaryl or heteroarylalkyl or CR1R2 = a 3-7 membered carbo- or heterocyclic ring; R3 = 1-10C alkyl, 2-10C alkenyl, 3-7C cycloalkyl, an optionally substituted aryl, arylalkyl or heteroaryl; and A<-> = anion of a strong acid.
Patent JP-S6019958-B2 (JP)
IPC: C11D3/39
Filed: 1981-03-20
Abstract: A bleaching detergent composition comprising a nonionic detergent active compound, an inorganic persalt e.g. sodium perborate, an organic peracid precursor and a fluorescent agent, is stabilized by the use of a "sacrificial" ingredient. The "sacrificial" ingredient is an organic compound having a relative reactivity towards peracid and hydrogen peroxide of the order of 50:1 and a solubility in nonionic detergent active compounds at 25 DEG  C. of at least 0.15 grams/liter, e.g. alkanolamines, and is used in relatively small amounts, generally from 0.1 to 5.0% by weight.
Patent JP-S5652922-B2 (JP)
IPC: C09D11/00
Filed: 1973-04-17
Abstract: A process for preparing a resin suitable for printing ink use, using as the starting oil to be polymerized either a heat-reacted mixture of that fraction having a boiling point of 20 DEG  - 80 DEG C. of the thermally cracked product oil of petroleum fractions or a mixture of this heat-reacted mixture with that fraction of a boiling point 140 DEG  - 280 DEG C. of the foregoing thermally cracked product oil, which starting oil is polymerized in the presence of a Friedel-Crafts type catalyst, after which the resulting polymer is reacted with an unsaturated carboxylic acid or an anhydride thereof and, if necessary, the resulting reaction product is further reacted with a monohydric alcohol to obtain a resin having a softening point of above 100 DEG C. and soluble in the nonaromatic hydrocarbon solvents.
Patent JP-H0233025-B2 (JP)
IPC: B01J14/00
Filed: 1981-04-21
Abstract: Nitrobenzene and other aromatic nitro compounds can be obtained efficiently by the mixed acid nitration process by passing nitrogen or other gas inert to the nitration reaction through the reaction mass during reaction. The inert gas captures water, introduced for example with reaction feedstuffs, and so enables the sulfuric acid concentration to be maintained in an optimum range from 70-75% by weight to ensure sufficient generation of nitronium ions to act as nitrating agent.
Patent JP-2700164-B2 (JP)
IPC: C09K3/24
Filed: 1991-03-01
Granted: 1998-01-19
Abstract: A method for easily making an ice slab serving as the foundation of an artificial snow skiing field and artificial snow whose upper layer is powdery by flooding aqueous slurry made by adding water to granular wet water absorbent polymer on a slope of a natural skiing field or a slant or horizontal surface of a natural skiing field or indoor artificial snow skiing field equipped with a cooling system, obtaining the deposit layer of the granular wet water absorbent polymer in which water is separated from the slurry and freezing the deposit layer.
Patent JP-H0442464-B2 (JP)
IPC: C22C38/42
Filed: 1985-03-29
Abstract: The present invention presents a ferritic-austenitic Cr- Ni-N-Steel alloy with a stable austenite phase, high corrosion resistance and good weldability, said steel alloy consisting essentially of the following elements by weight; max 0.06%C, 21-24.5% Cr, 2-5.5% Ni, 0.05-0.3% N, max 1.5% Si, max 4.0 % Mn, 0.01-1.0% Mo, 0.01-1.0% Cu, the remainder being iron and normal impurities, the contents of said elements being balanced so that the ferrite content, a, amounts to 35-65%. The analysis of the steel is so optimized that it becomes especially useful for those environments where the steel is exposed to temperatures above 60°C and chloride amounts up to 1000 ppm whilstthe alloy being stable towards deformation from austenite into martensite at a total deformation of 10-30% in room temperature.
Patent JP-2545432-B2 (JP)
IPC: F01C1/02
Filed: 1988-03-24
Granted: 1996-10-16
Abstract: In a displacement machine for compressible media on the spiral principle, the rotor disk (2) terminates radially flush with the displacement strips (3, 3'). So that the disk (2) can pass through the housing, in the inlet region (12, 12') of the machine the inner web (18, 18') of one housing half (7) is lowered by the amount of the disk thickness. To prevent leaks during the operation of the machine, the transition (19, 19') between the raised web (17, 17') and the lowered web (18, 18') is made circular. The rounding cooperates with a clearance (20, 20') in the form of an arc of a circle in the disk (2). Machines of this type are especially suitable for the supercharging of internal-combustion engines.
Patent JP-H0568961-B2 (JP)
Inventor: DEBITSUDO JEI DOTSUJI
IPC: A43B5/04
Filed: 1988-03-24
Abstract: A ski boot has a lower part and an upper articulated on the lower part at two opposite points which coincide with the joint of the foot. The rear part of the upper has a rounded cutaway portion which permits ample backward tilting. This cutaway portion is preferably covered by an articulated stirrup-shaped shroud connected to the upper by a rigid linking member.
Patent JP-H0146768-B2 (JP)
IPC: F24D3/00
Filed: 1984-04-07
Abstract: PURPOSE:To obtain comfortable heating by installing a radiating panel having an area corresponding to a floor area, by a method wherein along with installation of a large number of through holes of hot water within the titled heater the radiating panel provided with a hot water inlet pipe and a hot water outlet pipe is provided. CONSTITUTION:A heat exchanger 11 possesses a countless number of fins 29 turning a thermal medium liquid 14 flowing in the inside of a circulation pipe 55 into a hot temperature by performing heat exchange with hot air to be emitted from a heat source chamber part 6. A radiating panel 4 is a device to be obtained by connecting several sheets of flexible panels or metallic panels provided with a plurality of through holes of hot water with each other and mounting a rug 41 on the upper part, which can be stored by rolling in the same when the same is unnecessary, possesses elasticity as a whole and is a device to be obtained further by making a floor heater far effective. The flexible panels are connected with each other through a connecting pipe according to an area of the floor surface 19, a bent pipe and a discharge pipe piece are fixed to the flexible pipe and mount molding of a hot water inlet pipe 2 and a hot water outlet pipe 3 is performed.
Patent JP-3254035-B2 (JP)
IPC: D21F1/02
Filed: 1993-04-02
Granted: 2002-02-04
Abstract: The invention concerns a mixing system for mixing two liquids at the inlet to the headbox of a paper machine with: an inlet line (A) for the first partial volume flow (a); an inlet line (B) for the second partial volume flow (b); an outlet line (C) for the mixture volume flow (c) with the flow resistance (W); a mixing angle ( alpha ) with the inlet line (A) and the inlet line (B); a main flow angle ( beta ) between the inlet line (A) and outlet line (C); a valve (S) installed in the inlet line (B) for control of the partial volume flow (b). The mixing angle ( alpha ) is selected so that the mixture volume flow (c) remains constant, independent of the partial volume flow (b).
Patent JP-H07107018-B2 (JP)
IPC: C07C53/132
Filed: 1993-03-22
Abstract: Compounds of formula 
<CHEM>
 wherein
 Ar represents an optically substituted aryl group,
 R represents a C1-C4 alkyl;
 R1 and R2, equal to or different from each other, represent hydroxy, O<->M<+>, OR3 or 
<CHEM>
 R3 represents a C1-C24 alkyl, a C3-C6 cycloalkyl, a phenyl or a benzyl;
 M<+> represents the cation of an alkaline metal;
 R4 and R5, equal to or different from each other,
 represent a hydrogen atom, a C1-C4 alkyl, a C5-C6 cycloalkyl, a (CH2)n-CH2OH group with n=1, 2 or 3, or R4 and R5 together are group (CH2)m  with m=4 or 5, a group -CH2-CH2R6-CH2-CH2- in which R6 is an oxygen atom, an N-H or N-(C1-C4) alkyl group;
 X represents a chlorine, bromine or iodine atom, an hydroxy, acyloxy, alkylsulphonyloxy or arylsulphonyloxy group; the carbon atoms marked by an asterisk are both contemporaneously in the R or S configuration, are described. 
<??>The preparation of the compound of formula I by ketalization or by trans-ketalization with tartaric acid derivatives and their rearrangement into alpha-arylalkanoic acids is described too.
Patent EP-1280541-B2 (EP)
Inventor: RENAUD MICHEL
IPC: A61K35/742
Filed: 2001-05-11
Granted: 2010-03-17
Abstract: A method of modulating the microbial balance of the digestive ecosystem in a mammal comprising administering to a mammal in need thereof a composition comprising at least one nonpathogenic, hydrogenotrophic, acetogenic bacterial strain, along with a pharmaceutical and related methods, are described.
Patent EP-1590362-B2 (EP)
Inventor: BERGMANN FRANK
IPC: C01D5/14
Filed: 2004-01-28
Granted: 2015-01-14
Abstract: The present application is directed to a method for performing a bisulfite reaction to determine methylation positions in a nucleic acid, i.e. methylated and non-methylated cytosines, whereby the nucleic acid is incubated in a solution comprising the nucleic acid for a time period of 1.5 to 3.5 hours at a temperature between 70 and 90° C., whereby the concentration of bisulfite in the solution is between 3 M and 6.25 M and whereby the pH value of the solution is between 5.0 and 6.0 whereby the nucleic acid, i.e. the cytosine bases in the nucleic acid, are deaminated. Then the solution comprising the deaminated nucleic acid is desulfonated and preferably desalted. The application is further related to a solution comprising bisulfite with a certain pH and uses thereof as well as a kit comprising the solution.
Patent EP-0032581-B2 (EP)
IPC: B61L21/00
Filed: 1980-12-22
Granted: 1989-01-18
Abstract: The signal term to be transmitted to a railroad traction vehicle is formed in a signaling system in that each element, from a destination element back to a start element has a respective top speed assigned thereto as an identification. The identification is transmitted element-by-element back to the start element and is devalued during relaying thereof when the identification is greater than that prescribed for a travel path element having a lower assigned top speed so that the identification received at the start element indicates the top speed admissible for the route. The admissible top speed is then converted into a corresponding signal term.
Patent EP-0097561-B2 (EP)
Inventor: BIRAT JEAN-PIERRE
IPC: B22D11/12
Filed: 1983-06-07
Granted: 1993-12-08
Abstract: In a continuous-casting method molten steel is continuously introduced into a continuous-casting mold to form therein a strand having a free surface in the mold, a pair of relatively wide faces, and a pair of relatively narrow faces. The mold and the steel therein are continuously cooled to externally solidify the molten-steel strand while leaving same internally molten and the externally solid and internally molten strand is continuously withdrawn from the lower end of the mold. The core of the strand solidifies increasingly as it moves from the mold and terminates downstream of the mold at a pool bottom. At each of a plurality of locations spaced apart about 1 m to 2 m longitudinally along the strand between the mold and the pool bottom a respective magnetic field is formed with the fields passing through the strand from between about 3 m to 7 m beneath the free surface to about 2 m to 6 m from the pool bottom. These fields are displaced transversely of and generally parallel to the side faces of the strand with each field moving opposite to the adjacent field or fields so as to magnetically transversely and oppositely displace respective portions of the molten core of the strand.
Patent EP-0324406-B2 (EP)
Inventor: HAGEL RAUNO
IPC: D21G1/00
Filed: 1989-01-09
Granted: 1995-07-05
Abstract: The invention concerns an equipment in the system of rolls in a supercalender for equalizing the profiles of linear loads between the rolls. In the normal way, the system of rolls comprises an upper roll, a lower roll, several intermediate rolls placed between the upper roll and the lower roll, as well as lifting spindles (40) placed at both sides of the system of rolls. The equipment in accordance with the invention comprises lightening means (10) acting upon the bearing housing at each end of at least one roll, said lightening means being arranged to eliminate the distortions caused by the weight of the bearing housings and the auxiliary devices attached to same in the lateral areas of the profiles of linear load between the rolls. The lightening means (10) are provided between brackets (39) or equivalent attached to the bearing housings of the roll and spindle nuts (44) mounted on the lifting spindles (40) and placed underneath the said brackets so as to lift the bearing housings (38) while resting on the spindle nuts (44).
Patent EP-0513780-B2 (EP)
Inventor: GRAHAM ANDREW T
IPC: C08F6/00
Filed: 1992-05-14
Granted: 2007-03-14
Abstract: A process is described for recycling dry aqueous fluid absorbent polymer fines into a process that includes a polymerization step for making the aqueous fluid absorbent polymer. The process requires recovering the dry polymer fines, mixing the fines with a polymerizable monomer solution for making the aqueous fluid absorbent polymer and polymerizing the mixture of fines and monomer to form the aqueous fluid absorbent polymer. In the process the fines are incorporated into the new polymer gel and becomes indistinguishable therefrom. The gel may then comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The fines portion is then recycled up to about 30 percent by weight based on gel solids may be recycled for the preferred polyacrylate based aqueous fluid absorbent polymer.
Patent EP-0596032-B2 (EP)
Inventor: RAYCHAUDHURI SYAMAL
IPC: A61K/
Filed: 1992-07-24
Granted: 2004-04-07
Abstract: A compsn. is new, and comprises an antigen (I), except an albumin, mixed with an antigen formulation (II) consisting of: a stabilising detergent; a micelle-forming agent; and a biodegradable and biocompatible oil. (II) is a stable oil-in-water emulsion. Also new is a method for inducing a cytotoxic T-lymphocyte response in a human or animal comprising administering (I) and (II), (II) lacking an immunostimulating peptide component. (I) may be antigenic portions of HIV gp120, malaria antigens, CS protein and Sprorozoite surface protein, influenza antigens, carcinoma P21, etc. (I) also may not include a B-cell lymphoma anitgen.