baber/WOPTO huggingface dataset:
Patent BG-51421-A1 (BG)
Title: Method for silver extraction from waste photomaterials
Inventor: LAKOV LAKO P
IPC: G03C11/24
Filed: 1991-06-25
Abstract: The method is used in the chemical industry for extraction and reuse of silver from photographic paper, films, plates, etc. The method is rapid, easily performed, and uses a readily available enzyme to break down the silver-containing gelatine layer, does not lead to disposal of toxic reagents into the environment, and provides extraction of over 95 percent of the silver with a minimum purity of 99.3 percent. The essence of the method consists of breaking down the silver-containing gelatine layer in the waste photographic materials using a proteolytic enzyme until a silver-containing slurry is obtained, with said enzyme being an alkaline protease enzyme. The gelatine layer can be broken down at pH 7-9 and temperatures ranging from 5 to 55 degrees C, and the resulting silver-containing slurry then undergoes pyrometallurgical processing at 1,100-1,150 degrees C, resulting in elemental silver. The flux used during pyrometallurgical processing consists of a mixture of sodium carbonate, calcium carbonate, borax, and a reducing agent in a 4:1:1:1 ratio.
Patent WO-02066372-A1 (WO)
Title: Oxydes extraits de matieres vegetales et procede
Inventor: DE SOUZA MILTON FERREIRA
IPC: C01B33/18
Filed: 2001-02-19
Abstract: La présente invention concerne un procédé d"extraction d"oxydes acides ou basiques contenus dans une matière végétale et, en particulier, d"extraction du silice présent dans les balles de riz.  L"invention se rapporte également à des oxydes purs extraits de matières végétales.  L"invention concerne un procédé d"extraction de compositions d"oxydes riches en carbone à partir de matières végétales et des compositions obtenues selon le procédé précité.
Patent WO-2004058599-A1 (WO)
Title: A tray, particularly for transporting vehicle wheels and/or wheel rims, and a support, particularly for use with a tray for transporting vehicle wheels and/or rims of vehicle wheels
Inventor: MARCAO MARCELINO
IPC: B65D85/06
Filed: 2003-12-23
Abstract: One describes a tray, particularly for transporting vehicle wheels and/or rims of vehicle wheels, comprising at least one support (2b) provided with at least one first frame (6) having at least one projection and defining at least one situation of interaction (100) with a first wheel configuration, the support (2b) being provided with at least one second frame (6’), the second frame (6’) cooperating with the projection of the first frame (6), defining at least one second situation of interaction (200) with a second wheel configuration. One also describes a support (2b) for use with the tray (1) for transporting vehicle wheels/rims of vehicle wheels.
Patent WO-9514116-A1 (WO)
Title: Preparation de surfaces en ceramique d'alumine en vue d'un depot chimique et electrochimique de metaux
Inventor: FLACKER ALEXANDER
IPC: H05K3/38
Filed: 1994-11-18
Abstract: Métallisation de substrats à 96 % en céramique d'alumine au moyen de solutions aqueuses. Afin d'améliorer les caractéristiques de liaison entre le revêtement métallique et la céramique, on nettoie la surface céramique, avant et après l'élimination par gravure d'une matière vitreuse, avec un mélange d'acide sulfurique et de peroxyde d'hydrogène, ce mélange étant chauffé jusqu'à environ 100 °C. Le revêtement métallique comporte plusieurs couches déposées de manière séquentielle sur la surface céramique, la première couche étant une couche de nickel-bore ou de nickel-phosphore formée par dépôt chimique et recouverte de couches de différents métaux formées par métallisation de manière à assurer une faible résistance, une aptitude élevée au soudage et une protection contre l'oxydation. Entre l'étape de dépôt chimique et les étapes ultérieures de métallisation, on traite les substrats aux ultrasons afin d'éliminer les flocons de la surface obtenue par dépôt chimique, ce qui améliore la fabrication des rubans étroits pour circuits imprimés, leur largeur étant inférieure à 50 microns.
Patent WO-0063913-A1 (WO)
Title: Systeme et procede d'edition non lineaire dans lesquels des clips de reference sont utilises dans des sequences d'edition
Inventor: SHEASBY MICHAEL C
IPC: G11B27/34
Filed: 2000-04-17
Abstract: Un système et un procédé d'édition non linéaire (ENL) permettant de produire des séquences d'édition comprennent des clips de référence qui peuvent être utilisés dans les séquences. Les clips de référence contiennent une référence à des méta-données définissant une séquence subordonnée (fille). Le clip de référence est chargé dans une séquence parent dans le système ENL, plutôt que les méta-données relatives à la séquence fille et, étant donné que le clip de référence et sa référence ont un encombrement en mémoire beaucoup plus faible que les méta-données relatives à la séquence fille, les besoins en mémoire pour que le système ENL charge la séquence parent sont réduits de même que le temps nécessaire pour effectuer le chargement. De plus, les méta-données définissant les séquences filles peuvent être conservées séparément et distinctement des séquences parents et utilisées dans n'importe quelle séquence parent au moyen d'un clip de référence associé à la séquence fille conservée. Ceci permet également d'utiliser dans plusieurs instances des clips de référence pour une séquence fille, dans une seule séquence parent ou dans plusieurs séquences parents et par plusieurs utilisateurs.
Patent WO-0074956-A1 (WO)
Title: Reproduction d'oeuvre d art 3 d et son procede d'affichage
Inventor: KALEF HARVEY
IPC: G09F19/12
Filed: 2000-06-01
Abstract: Une forme artistique comprend: i) un cadre de support possédant deux éléments latéraux, un élément supérieur et un élément inférieur; et ii) une reproduction artistique d'une image sur un fond en toile montée sur ledit cadre de support, les éléments opposés présentant des courbes incurvées correspondantes.
Patent WO-0135478-A1 (WO)
Inventor: ZHANG JIUJUN
IPC: H01M8/04
Filed: 2000-10-24
Abstract: The measuring range of a fuel cell based concentration sensor can be extended by decreasing the load across the fuel cell terminals and by increasing the amount of oxidant supplied to the fuel cell. In this way, such a sensor avoids saturation, for example, when measuring methanol concentrations from 0 M to over 4 M in liquid aqueous solution. Such a sensor is suitable for use in measuring fuel concentrations in the recirculating fuel stream of certain fuel cell stacks (for example, direct methanol fuel cell stacks).
Patent WO-02069975-A1 (WO)
Title: Utilisation d'un oestrogene pour induire l'augmentation du nombre de cellules souches neurales
Inventor: WEISS SAMUEL
IPC: A61P25/28
Filed: 2002-02-27
Abstract: L'invention concerne un procédé permettant d'augmenter le nombre de cellules souches neurales à l'aide d'un oestrogène. Ledit oestrogène induit une augmentation du nombre de cellules souches neurales, ce qui produit un fonds de cellules souches neurales plus important pouvant être utilisé pour traiter ou atténuer des maladies ou des troubles neurodégénératifs. Selon un autre aspect, l'invention concerne un procédé permettant d'identifier des gènes régulant l'augmentation des cellules souches neurales induite par un oestrogène.
Patent CA-2002408-A1 (CA)
Inventor: SUZUKI SHOJI
IPC: B29C65/50
Filed: 1989-11-07
Abstract: ABSTRACT OF DISCLOSURE     Memory-shaped molded objects which can be deformed by application of heat and/or force and then restored to their original condition by heating above their restoration or memory temperature.  The molded objects can have on at least a portion of their surface a resilient layer made from an elastomeric material and an adhesive affixing said objects to structural members for the purpose of retaining, connecting, or sealing.   2195/1a
Patent CA-2004544-A1 (CA)
IPC: C10N40/32
Filed: 1989-12-04
Abstract: ABSTRACT            The invention relates to an aqueous lubricant solution based in part on a particular group of fatty alkyl amines, which aqueous solution is especially suitable for use as a belt lubricant for the lubrication of conveyor  belts  for  bottles.    The  aqueous  lubricant  solutions  in accordance  with  the  present  invention  exhibit  excellent  clouding behavior and very good gliding action.
Patent CA-2006361-A1 (CA)
Title: Method and apparatus for preparing thermoplastic foam
Inventor: KORB JEAN G
IPC: B29C48/08
Filed: 1989-12-21
Abstract: ABSTRACT     Thermoplastic foam is prepared by a continuous process comprising melt mixing thermoplastic resin; pressurizing the resin melt; introducing blowing agent; cooling and depressurizing the resultant gel; and either foaming and forming the gel to form a solid foam or forming the gel to form a foamable composition.  The process temperature is maintained substantially independently of the flow rate of the resin melt and gel at below that at which substantial depredation of the resin gel occurs.  The process has particular application to rubber-modified polystyrene or rubber-modified polyethylene resin foam compositions containing a fire retardant.     33,584-F
Patent CA-2006427-A1 (CA)
Title: Light-polarizing films or sheets containing stilbene dyestuffs
Inventor: CLAUSSEN UWE
IPC: C08K5/42
Filed: 1989-12-21
Abstract: Light-polarizing  films  or  sheets  containing  stilbene dyestuffs Abstract Light-polarizing films or sheets, preferably based on vinyl  alcohol  homopolymers  or  copolymers  contain dyestuffs of the formula   in  which  X  and  Y  have  the  meanings  given  in the description.           Le A 26 394 -US
Patent CA-2006815-A1 (CA)
Title: Fluid bed processes
Inventor: BRAUN JOHN F
IPC: B01J8/32
Filed: 1989-12-28
Abstract: 14-54(8511)A                          ABSTRACT OF THE DISCLOSURE        Solids losses and particulate catalyst losses in fluidized bed catalytic reactors using cyclone means to retain catalyst are significantly reduced by the presence of particulate inert fines.
Patent CA-2009785-A1 (CA)
Inventor: SLEZAK MILOSLAV L
IPC: E02B15/04
Filed: 1990-02-12
Abstract: La présente invention consiste en un appareil servant à récupérer de l'huile répendue sur un plan d'eau. Cet appareil est muni de roues, ainsi que de flotteurs, ce qui lui permet d 'évoluer aussi bien sur une plage qu'en eau plus ou moins profonde. Des éléments d 'aspiration flottants sur l'eau - qui sont fixes à l'avant de l'appareil - aspirent l'huile mélangée à une certaine partie d 'eau. L'orifice de ces éléments possède une ouverture variable, qui s'ajuste automatiquement à l'épaisseur de la couche d 'huile, ce qui minimise la quantité d 'eau aspirée. Ce liquide est dirigé dans un réservoir sans fond formé d'une jupe rétractable où le mélange se sépare. L'huile, remontant à la surface, est alors récupérée dans un second réservoir placé au centre du premier et dont le rebord supérieur est maintenu automatiquement, légèrement sous le niveau supérieur de l'huile, permettant à celle-ci de s'y écouler et, d 'où elle peut être pompée vers un réservoir flottant ou tout autre contenant.
Patent CA-2010305-A1 (CA)
Title: Extruding apparatus
Inventor: WELLMAN KEITH R
IPC: B21C25/08
Filed: 1990-02-19
Abstract: ABSTRACT      An apparatus for extruding stepped extrusions, e.g. of aluminium or aluminium alloy, comprises a die holder carrying a major die, and a split minor die arranged for abutment with the downstream side of the major die and having its two halves mounted on respective parts of a split holder.   The holder parts are movable towards and away from the line of extrusion to put together and separate the halves of the minor die.   The die holder and the container of an extruder and movable towards each other to press the minor die the major die and the downstream face of the container into sealing engagement about the die apertures, and are movable away from each other to permit the extrusion to be sheared off between the container and the major die.
Patent CA-2010648-A1 (CA)
Title: Drill
Inventor: FISCHER ARTUR
IPC: B23B51/12
Filed: 1990-02-22
Abstract: 2.1. To produce drilled holes to a defined depth, drills can be used which have a depth stop on the shank. 
<??>2.2. To avoid damage to the wall surface when the depth stop bears against it, a depth stop with an elastic damping element is proposed. 
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Patent CA-2011254-A1 (CA)
Inventor: COHEN NORMAN
IPC: A24C5/00
Filed: 1990-03-01
Abstract: Procedures are described for self-manufacture of cigarettes.  In one procedure, a preformed cigarette tube having a charge of cut tobacco therein has a recess at one end into which a filter is inserted to provide the finished cigarette.  In another procedure, an inherently unsmokeable tobacco stick is coated with a material which renders the stick smokeable.  In a further procedure, a plurality of short inherently-unsmokeable tobacco sticks is inserted into the hollow interior of a preformed cigarette paper tube.
Patent CA-2011793-A1 (CA)
Title: Process for producing 1,3-substituted tetrahydro-1h-thieno [3,4-d]-imidazol-2(3h)-on-4-ylidene pentanoic acid ester
Inventor: EYER MARTIN
IPC: C07D495/04
Filed: 1990-03-08
Abstract: ABSTRACT OF THE DISCLOSURE          A process is disclosed for the preparation of 1,3-substituted  tetrahydro-1H-thieno-[3,4-d]-imidazol-2(3H)-on-4-ylidene  pentanoic  acid  esters,  which  are intermediate  products  for  the  production  of  the pharmaceutically active substances (+)-biotin.
Patent CA-2011817-A1 (CA)
Inventor: NISHIO MAMORU
IPC: G06F13/14
Filed: 1990-03-09
Abstract: A disc selecting and controlling method for selectively controlling at least one automatic disc changer adapted to selectively take out plural disc-shaped recording media to record and/or reproduce the recording media on at least one disc drive, and at least one disc recording and/or reproducing apparatus adapted to record and/or reproduce at least one disc-shaped recording medium, from a host computer by means of a means of a disc controller, is disclosed. The disc drive device or the disc-shaped recording and/or reproducing device is switchingly selected by a hardware technique by a selection signal transmitted over a selection signal line of the disc controller, and the automatic disc changer performing a switching selection by a software technique by a command from the disc controller deems the disc-shaped recording media to be virtual disc drive or disc recording and/or reproducing apparatus.
Patent CA-2013285-A1 (CA)
Inventor: BOGAERT YVAN A
IPC: C09J7/02
Filed: 1990-03-29
Abstract: Abstract The current invention provides a photopolymer-ized presssure-sensitive adhesive which adheres well to all common surfaces and has an outstanding ability to bond to plasticized vinyl substrates and to remain firmly bonded thereto even after remaining in contact therewith for extended periods of time comprising an acrylic copolymer and an ethylene vinylacetate copolymer or mixture of copolymers.  Preferred pressure sensitive adhesives of the invention comprise from about 10 to about 30 parts of the ethylene vinylacetate copolymer or a mixture thereof.
Patent CA-2015226-A1 (CA)
Title: Detachable guidewire extension
Inventor: FRASSICA JAMES J
IPC: A61M25/01
Filed: 1990-04-24
Abstract: AZB/dmc 0401b/5b DETACHABLE GUIDEWIRE EXTENSION                 ABSTRACT OF THE DISCLOSURE     A guidewire system for use in catheter exchanges avoids the need for a separate exchange wire by connecting an extension wire to the proximal end of the guidewire thereby increasing the effective length of the guidewire to permit a catheter exchange.  The proximal end of the guidewire is attached to the distal end of the exchange wire by a disconnectable, reattachable connection which avoids deformation of the connected joint.  The connection includes a male element in the form of a reduced diameter rod extending axially from the proximal end of the guidewire and a female element attached to the distal end of the guidewire.  The female element includes a helical coil receptive to the rod and dimensioned to receive the rod in an interference fit requiring the spring to expand.  Separation is effected by imparting a combined twisting and axial separation motion to the guidewire and extension wire.
Patent CA-2015848-A1 (CA)
Title: Polyacetal copolymers of trioxane and trimethylolpropane formal derivatives
Inventor: BROUSSARD JERRY A
IPC: C08G2/00
Filed: 1990-05-01
Abstract: ABSTRACT      Cationic copolymerization of trioxane and trimethylolpropane (TMP) formal or its ester derivatives yields acetal copolymers having pendant functional groups.  The TMP formal or ester derivatives of TMP formal may therefore include functional groups selected from hydroxyl or ester moieties which are protected and thus survive the copolymerization with trioxane.  These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
Patent CA-2015952-A1 (CA)
Inventor: VU TUAN M
IPC: A61K8/81
Filed: 1990-05-02
Abstract: A substantially clear, anhydrous suspension-type antiperspirant product includes an effective amount of an active antiperspirant component in particulate form suspended in an anhydrous vehicle such that there is no significant dissolution of the active antiperspirant ingredient in the vehicle, and the refractive indices of the active antiperspirant component and the vehicle are matched.
Patent CA-2016962-A1 (CA)
Title: Polypeptide-antibody conjugate for inhibiting cell adhesion
Inventor: CHERESH DAVID A
IPC: A61K38/00
Filed: 1990-05-16
Abstract: ABSTRACT           A polypeptide-antibody conjugate is disclosed that contains an integrin-binding polypeptide operatively attached to an antibody molecule that immunoreacts with adhesitory cell surface antigens. Therapeutic compositions and methods using those compositions are also disclosed whereby the polypeptide-antibody conjugate can be used to inhibit cell adhesion and cell adhesion-dependent processes such as tumor growth and platelet aggregation.
Patent CA-2017049-A1 (CA)
Title: Synergistic sweetening compositions containing dipeptide sweetening agents and methods for preparing same
Inventor: FAUST STEVEN M
IPC: A23L27/30
Filed: 1990-05-17
Abstract: ABSTRACT OF THE DISCLOSURE     SYNERGISTIC SWEETENING COMPOSITIONS CONTAINING DIPEPTIDE SWEETENING AGENTS   AND METHODS FOR PREPARING SAME           The present invention pertains to a synergistic sweetening composition which comprises L-alpha-aspartyl-D-alanine N-(2,2,4,4-tetramethyl-3-thietanyl)amide and N-L-alpha-aspartyl-L-phenylalanine  l-methyl  ester.    The synergistic sweetening composition may be used in a wide variety of  ingestible products  such as hard and  soft confections, chewing gum compositions and the like.  The present invention also pertains to methods for preparing the   synergistic   sweetening   compositions   and   the ingestible products in which they may be used.
Patent CA-2017363-A1 (CA)
Inventor: HAMADA YOSHIKAZU
IPC: E05B65/12
Filed: 1990-05-23
Abstract: The actuator for a door locking apparatus for a vehicle has an output shaft rotatably mounted on the body thereof, a cylindrical worm designed to be rotated by a motor, and a shaft tube having an internal toothed portion that is brought into mesh engagement with the cylindrical worm and designed to move between locked and unlocked positions along the axial direction of the worm when the worm is rotated.  An elongate hole is formed in the arm fixed to the output shaft, and the pin of the shaft tube is brought into engagement with this elongate hole.          A projection is provided on the shaft tube at such a position as to be closer to the output shaft than the pin is.  The actuator has a torsion spring for returning the shaft tube from the locked or the unlocked position to a neutral position as an intermediate position between the two positions when the motor is switched off.  The coil portion of the torsion spring is wound around the outer circumference of the output shaft, and the two legs of the torsion spring are crossed each other, and are thereafter brought into engagement with the projection and a fixed locking piece.
Patent CA-2019064-A1 (CA)
Inventor: HORST ROBERT W
IPC: G06F7/52
Filed: 1990-06-15
Abstract: In a data processing system, a multiplication operation is immediately followed by a redundant multiplication operation, using the same, albeit altered, operands, to check the initial result.  The initial result is immediately available for use, but the check is not performed until some time later.  The original operands are altered for the redundant multiplication operation by shifting one operand 1 bit, and swapping them before multiplication.
Patent CA-2020075-A1 (CA)
Title: Image enhancing surgical staple
Inventor: MILLS EARL J
IPC: A61B19/00
Filed: 1990-06-28
Abstract: ABSTRACT IMAGE ENHANCING SURGICAL STAPLES    A biocompatible metallic surgical staple formed from a non-magnetic components and comprised of more than 50% titanium by weight is described.  The staple is formed from at least 90% titanium and includes a 6% aluminum and 4% vanadium.  It has been found that the low density, high strength and non-magnetic properties of the present staple make it desirable for magnetic-resonance imaging scanning.
Patent CA-2020396-A1 (CA)
Title: Paper sizing agent containing a new cationic dispersing agent
Inventor: BUNG JOSEF
IPC: C09K23/52
Filed: 1990-07-04
Abstract: ABSTRACT OF THE DISCLOSURE    A cationic dispersant consisting of a copolymer made up of the monomers N,N'-dimethylamino(meth)acrylate, (meth)acrylic acid ester of a C10 to C22 fatty alcohol, methacrylate, acrylic and/or methacrylic acid. It is suitable for producing stable dispersions of sizing agent which may be used equally well for internal or surface sizing. The new dispersions of sizing agent may also contain aluminium salts.
Patent CA-2020733-A1 (CA)
IPC: G01R31/311
Filed: 1990-07-09
Abstract: Electrical devices are characterized by optically triggering an electrical signal onto the device and then optically sampling the electrical signal waveform on the device.
Patent CA-2024152-A1 (CA)
Title: Method of and an apparatus for testing large area panes for optical quality
Inventor: ERBECK RALF
IPC: G01M11/02
Filed: 1990-08-28
Abstract: ABSTRACT OF THE DISCLOSURE     A method of testing large area panes of a transparent material for optical quality, especially automotive windshield, uses a light box having a uniformly illuminated wall along which a planar grating is provided.  The grating has an area at least equal to that of the windshield which is spaced from that grating. An objective in line with the windshield and the grating forms an image of the grating through the windshield on a plane having a reference grating of much smaller size to form a Moir?-pattern superposition which is picked up by a video camera and subjected to phase shift analysis.
Patent CA-2028059-A1 (CA)
Title: Process and reactives for sensing of microorganisms
Inventor: MONGET DANIEL
IPC: C12Q1/18
Filed: 1990-10-19
Abstract: The invention relates to reagents for detecting microorganisms. According to the invention, a marker consisting of resorufin or any compound having a similar chemical structure is used in a reaction medium in an aqueous phase containing a carbon source and a nitrogen source. The invention is used, in particular, in the identification of microorganisms, and in obtaining antibiograms and antifungigrams.
Patent CA-2028117-A1 (CA)
Title: Substance trehalostatin and process for the preparation thereof
Inventor: MURAO SAWAO
IPC: A01N63/20
Filed: 1990-02-28
Abstract: Trehalostatin is a new substance with the following properties: soluble in water, sparingly soluble in hexane, ether, benzene or petroleum ether. No UV absorption maximum above 220nm. Positive Rydon-Smith colour reaction. Negative Elson-Morgan, ninhydrin and 3,6-dinitrophthalate colour reactions. TLC on Merck Kieselgel 60F254 using butanol/acetic acid/water 3:1:2, Rf = 0.37. HPLC on a YMC PA03 column (0.7x27cm) using aq acetonitrile (65% v/v) at 1.0ml/min; Rt = 11.0 Mol wt 366; (alpha)D + 115 degrees. The NMR spectra (1H and 13C) are given, and are consistent with trehalostatin having structure (I) or (II): (where R = alpha-D-glucopyranosyl).