baber/WOPTO huggingface dataset:
Patent BG-50788-A1 (BG)
Title: Preparation, stabilizing the carbohydrates of wood
Inventor: DRAGANOVA RAJNA J
IPC: D21C3/08
Filed: 1990-09-04
Abstract: This agent is used in the sulphate method for extracting cellulose. It enhances the output of cellulose and improves its physio-mechanical parameters. The agent is an alkaline-activated, hydrolysed lignin with MM 1,100, and contains (in %) : phenol OH groups (2.69), COOH groups (1.76), aliphatic OH groups (4.14), methoxyl groups (7.78) and carbonyl groups (2.70). Also, in some cases, oxidized, alkaline-activated hydrolysed lignin MM 1,050, which contains (in %) : phenol groups (5.25), COOH groups (2.60), aliphatic OH groups (4.16), methoxyl groups (6.62), carbonyl groups (3.72), and between 0.2 and 1% of dry timber.
Patent WO-0055337-A1 (WO)
Title: Plantes transgeniques resistant a une large variete de pathogenes
Inventor: MISRA SANTOSH
IPC: C07K14/46
Filed: 2000-03-16
Abstract: L'invention concerne des plantes transgéniques exprimant les peptides de dermaseptine et/ou de temporine. Dans certains modes de réalisation, ces plantes possèdent une meilleure résistance à un spectre plus large de pathogènes et sont utiles en tant que cultures agricoles et horticoles. Dans d'autres modes de réalisation, les plantes sont utilisées pour produire des quantités importantes de peptides de dermaseptine et/ou de temporine.
Patent CA-2000018-A1 (CA)
Title: Spectacular break-through in gas, isotope and liquid separations and a revolutionary advance in and a master key for membrane technology and science
Inventor: KHODAI JOOPARY ARASTOO
IPC: B01D67/00
Filed: 1989-10-02
Abstract: A B S T R A C T  SPECTACULAR BREAK-THROUGH IN GAS, ISOTOPE AND LIQUID SEPARATIONS AND A REVOLUTIONARY ADVANCE IN AND A MASTER KEY FOR MEMBRANE TECHNOLOGY AND SCIENCE.        A process is described for the permseparation of gases, iso-topes, and liquids by permselective membranes which comprise the use of membranes of solid materials with pores having a size, shape and length resulting in a microcapillary action which causes micro-phase separation on the molecular level of one component of the fluid, i.e. the component with the highest throughout, and the transport of that component across the membrane by flowing through the pores resulting in a complete or substantially complete separa-tion; said permseparation depends on the difference between the bulk properties of the components. The observations leading to the present invention such as large separation factors between the and helium, and hydrogen and air, and permseparation of butanol and water as well as special and general procedures of how to carry out the present invention which relates to all areas of science and technology concerning the separation by membranes are described. This also include improved methods of producing nuclepore micro-filters.
Patent CA-2000199-A1 (CA)
Title: Process for Preparing High Viscosity, Low Unsaturation Polyoxyalkylene Block Polyethers
Inventor: OTT ROGER A
IPC: C08G65/26
Filed: 1989-10-05
Abstract: Polyoxyalkylene block polyethers having high viscosity and low unsaturation are prepared by controlling catalyst level and temperature during ethylene oxide addition.
Patent CA-2000916-A1 (CA)
IPC: G02B6/42
Filed: 1989-10-18
Abstract: The present invention comprises a first interconnect assembly and a second interconnect assembly which detachably connects to the first interconnect assembly. One of the interconnect assemblies includes a shutter for blocking an optical path. The first and second assemblies have surfaces which mechanically co-act to drive the shutter away from the optical path. An optical fiber is connected to one of these assemblies. In the preferred embodiment, the first assembly (13) forms a plug and the second assembly (15) forms an adapter, such as a socket. The socket assembly includes a shutter (183) which is spring-biased to a normally closed position. In this normally closed position, the shutter blocks passage of laser light to an optical fiber (79). The plug assembly includes an appendage (25) having a camming surface (73) which co-acts with a camming surface (142) on the socket assembly so as to drive the shutter to an open position which permits transmission of laser light to the optical fiber.
Patent CA-2001238-A1 (CA)
Inventor: SATO TAKURO
IPC: G06T15/00
Filed: 1989-10-23
Abstract: ABSTRACT OF THE DISCLOSURE      A three-dimensional image generator generates a random signal which it filters in two dimensions generate a realistic three-dimensional image of a natural object such as ocean waves or clouds.  By performing the filtering operation repeatedly on overlapping intervals of the random signal, related images can be obtained to generate moving scenes at real-time rates.  Two or more partial image generators can be connected in parallel to generate different directions of motion, or different parts of a complex scene.  Within each partial image generator, two or more space filters can be connected in parallel to generate superimposed patterns, such as small ripples superimposed on large waves.  This image generator is much faster than previous, fractal image generators.
Patent CA-2003492-A1 (CA)
Title: Apparatus for and method of cutting joints
Inventor: GODFREY CHRISTOPHER M V
IPC: B27F1/00
Filed: 1989-11-21
Abstract: ABSTRACT          APPARATUS FOR AND METHOD OF CUTTING JOINTS  There is disclosed an apparatus (1) for machining at least one half of an interconnecting joint between the end regions of two components (A, B) comprising:   a support (2); a carrier movable on and fixable with respect to the support (2) and having a first clamping means (4) for clamping to the carrier a first component (A) for machining of that component (A), and a second clamping means for clamping a second component (B), having a previously machined end profile, to the carrier (3) in a predetermined position to act as a template to enable the end region of the first component (A) to be machined to a profile capable of co-operating with the second component (B); and cutting means mounted on the support (2) for machining the end of the first component (A) to a profile capable of co-operating with the profile of the second component (B).     Also disclosed is a method of machining at least one half of an interconnecting joint.     The apparatus and method of the present invention are particularly useful for machining dovetail joints.
Patent CA-2005059-A1 (CA)
Title: Tnf peptides
Inventor: BOEHM HANS-JOACHIM
IPC: A61P37/06
Filed: 1989-12-11
Abstract: ABSTRACT OF THE DISCLOSURE: Peptides of the formula X-A-Y, where A, X and Y are defined in the description, and the preparation thereof are described. The novel peptides are suitable for controlling diseases.
Patent CA-2005538-A1 (CA)
Inventor: KAWASAKI HIROTAKA
IPC: E02D29/02
Filed: 1989-12-14
Abstract: A fiber grid reinforcement is of a flat shape and has first and second directions perpendicular to each other.  The fiber grid reinforcement includes a plurality of first fiber bundles, a plurality of second fiber bundles, and a resin material.  The first fiber bundles are generally disposed along the first direction and generally parallel to one another.  Each of the first fiber bundles includes at least one first group of fibers.  The second fiber bundles are generally disposed along the second direction and generally parallel to one another.  Each of the second fiber bundles includes at least one second group of fibers.  The second fiber bundles intersect perpendicular to the first fiber bundles at intersecting sections so as to form a grid structure.  The first group and the second group of fibers are layered alternately at the intersecting sections in such a manner that at least one outermost layer is the second group.  The resin material bonds fibers in each group, and bonds the groups to one another.  Each of the first group has a plurality of fibers, the fibers being generally arranged along the first direction.  Each of the second group has a plurality of fibers, the fibers being generally arranged along the second direction.  Each of the second fiber bundles includes a greater number of fibers than each of the first fiber bundles.  Accordingly, the fiber grid reinforcement has a greater flexibility in the first direction than in the second direction.
Patent CA-2006041-A1 (CA)
Title: Process for producing a polyolefin
Inventor: SATO MORIHIKO
IPC: C08F4/657
Filed: 1989-12-19
Abstract: A process for producing a polyolefin, which comprises polymerizing at least one olefin in the presence of a catalyst system comprising (A) a  solid catalyst component (A) obtained by reacting to a uniform solution containing (i) at least one member selected from the group consisting of metallic magnesium and an organic hydroxide compound, and an oxygen-containing organic magnesium compound, and (ii) at least one oxygen containing organic titanium compound, (iii) at least one organic aluminum compound, (iv) at least one boron compound having an alkoxy group, and (v) at least one aluminum halide compound; and (B) at least one catalyst component (B) selected from the group consisting of organic metal compounds of metals of Groups Ia, IIa, IIb, IIIb and IVb of the Periodic Table.
Patent CA-2006669-A1 (CA)
Inventor: FUCHS JEAN-FRANCOIS
IPC: B29L23/00
Filed: 1989-12-27
Abstract: Procédé pour intégrer un embout métallique à un tube en matériau composite bobiné et tube ainsi réalisé. DESCRIPTIF On bobine en continu des fibres essentiellement longitudinales (1) à la fois autour d'un mandrin (4) cyclindrique et autour d'un embout métallique ayant la forme d'un double-cône, engagé sur le mandrin, en faisant retour sur des picots (9) répartis sur une bague (8) positionnée sur une partie filetée (11) prolongeant l'embout, puis on frette ces fibres longitudinales par des fibres circonférentielles (7) avant d'assurer une polymérisation finale du tube. Application aux tubes composites pour la recherche pétrolière en mer. Figure 1.
Patent CA-2008538-A1 (CA)
Inventor: IZUMI MITSUHIKO
IPC: C08L55/02
Filed: 1990-01-25
Abstract: Disclosed is a resin composition which comprises:          (A) a melt-workable liquid-crystal polyester resin obtained by polymerizing components selected from the group consisting of a dicarboxylic acid represented by the general formula (a) HOOC - R1 - COOH, a diol represented by the general formula (b) HO          - R2 - OH, and an oxycarboxylic acid represented by the general formula (c) HO - R3 - COOH wherein R1, R2 and R3 are each a divalent aromatic hydrocarbon group, -R4-X-R5 (where R4 and R5 are each a divalent aromatic hydrocarbon group and X is O, S, SO2, CO, COO, alkylene or a bond), xylylene or a divalent aliphatic hydrocarbon group, or by homopolymerizing the oxycarboxylic acid;          (B) a polycarbonate resin having a recurring unit represented by the general formula:       wherein R6 and R7 are naphthalene, phenylene, halogen-substituted phenylene or alkyl-substituted phenylene and R8 and R9 are H or hydrocarbon not containing an aliphatic unsaturation or R8 and R9 together with the carbon atom to which they are attached form a cycloalkane group; and (C) a polyolefin and/or an olefinic copolymer, and the polyolefin and/or olefinic copolymer (C) is contained in an amount of 1 - 15 parts by weight per 100 parts by weight of a resin consisting of 95 - 5 wt% of the liquid-crystal polyester resin (A) and 5 - 95 wt% of the polycarbonate resin (B).  This resin composition is balanced between various physical properties including mouldability, heat resistance, impact resistance, dimensional stability and stiffness; and is useful for moulding articles.
Patent CA-2010098-A1 (CA)
Title: Lead-free glass
Inventor: ROBERTS GORDON J
IPC: C09D11/03
Filed: 1990-02-14
Abstract: FERO-913 (CIP) Title: LEAD-FREE GLASS    Abstract of the Disclosure A lead-free glass composition comprising: from  about  30%  to about 51% by weight silicon dioxide,  from  about  19%  to  about 50% by weight boron oxide,  from  about  2%  to about 20% by weight zirconium oxide,  up  to 14% by weight sodium oxide, up to about 6% by  weight  potassium  oxide,  up  to about 19% by weight zinc  oxide,  and up to about 5% by weight lithium oxide; and  from about 2 to about 8 parts by weight fluorine per 100  parts  of  the other components in said composition. Additionally,  up  to about 8% by weight barium oxide and up  to  about  4% by weight titanium dioxide can be added to the foregoing glass composition.
Patent CA-2012584-A1 (CA)
Title: Microprocessor-controlled apparatus for detecting and guiding a web wherein right and left eyespots are formed to determine right and left edges
Inventor: KUECKER CHARLES A
IPC: B65H23/032
Filed: 1990-03-20
Abstract: MICROPROCESSOR-CONTROLLED APPARATUS FOR   DETECTING AND GUIDING A WEB WHEREIN  RIGHT AND LEFT EYESPOTS ARE FORMED  TO DETERMINE RIGHT AND LEFT EDGES                            ABSTRACT           An apparatus for detecting and guiding a web includes a web scanner bar unit that extends across the entire width of the web path for controlling a steering mecha-nism to maintain a more precise edge and/or center alignment.  The web scanner bar unit is formed of an infrared light-emitting diode array and a phototransistor array formed on opposite sides of the web.  A micro-processor-based controller unit is provided for control-ling the operation of the web scanner bar unit to form right and left eyespots in order to determine the respec-tive right and left edges of the web.  Further, the web scanner bar unit is capable of detecting a break in the intermediate area of the web.
Patent CA-2012697-A1 (CA)
IPC: G02B6/26
Filed: 1990-03-21
Abstract: The invention is an optical isolator. In one embodiment the optical isolator comprises two linear polarizers, one at the input of the isolator and the other at the output. Positioned between the input and the output linear polarizer is a gyrotropic medium located within a resonant cavity such as a Fabry-Perot cavity. Interposed between the linear polarizer at the input of the isolator and the resonant cavity is a first polarization conversion means for converting received plane polarized optical energy from said linear polarizer to circularly polarized optical energy and interposed between the resonant cavity and the linear polarizer at the output of the isolator is a second polarization conversion means for converting received circular polarized optical energy from said resonant cavity to plane polarized optical energy. In an embodiment, the resonant cavity comprising the gyrotropic medium becomes the filtering medium to block reflected optical radiation.
Patent CA-2016060-A1 (CA)
IPC: G10C3/18
Filed: 1990-05-04
Abstract: PIANO FORTE HAMMER AND METHOD FOR MAKING SAME    Abstract of the Disclosure A piano forte hammer has an elongated head with a nose defining side surfaces, and a felt body disposed to extend about the nose.  The felt body has a nose region for contact upon a piano string and first and second tall regions having surfaces affixed in contact upon the head side surfaces.  The felt body, in the tall regions only, contains a predetermined measured amount of acrylic copolymer, the felt body nose region being essentially free of the acrylic copolymer.  The hammer may be formed by a process including the steps of; providing a first volume of aqueous solution containing the predetermined measured amount of acrylic copolymer in a slot; disposing a first tall region of the felt body, prior to assembly about the nose, in solution in the slot; allowing the felt body to draw essentially all of the solution from the slot, into the first tall region only, by natural wicking action; and repeating the process for the second tall region of the felt body, the nose region being left essentially free of acrylic copolymer.
Patent CA-2016341-A1 (CA)
IPC: G11B11/10
Filed: 1990-05-09
Abstract: Abstract of the Disclosure A low-friction, corrosion-resistant substrate includes a substrate and a macromolecular Langmuir-Blodgett film in coating relationship with the substrate, the film having a multiplicity of macromolecules, each including a hydrophobic end and a hydrophilic end, wherein the hydrophilic end of substantially each macromolecule is bonded to a surface of the substrate and the hydrophobic end of each macromolecule resides at the interface of the film coating and the surrounding air.  The film may also include planar heterocyclic molecules.  A low-friction corrosion-resistant read/write head and/or recording medium includes a Langmuir-Blodgett film in coating relationship with the surface thereof.
Patent CA-2017841-A1 (CA)
Title: Digital transmission system using subband coding of a digital signal
Inventor: RAULT JEAN B
IPC: G10L19/00
Filed: 1990-05-30
Abstract: A digital transmission system is disclosed having a transmitter (3,6,9) and a receiver (13,16,19) for transmitting a digital signal, such as a digital audio signal, having a given sampling rate F S. The digital signal is subband coded into M subbands with sampling rate reduction. To that purpose the transmitter includes a first unit (3) for splitting up the digital signal into M signals having a sampling rate F S/M. These signals are available at the outputs (9.1 to 4.M) of the first unit (3), and are applied to M analysis filters (6.1 to 6.M), each filter (6.m) having one input (5.m) and two outputs (7.ma and 7.mb). The 2M filter outputs are coupled to 2M inputs (8.1 to 8.2M) of a signal processing unit 9 which has M outputs (10.1 to 10.M) for supplying the M subband signals (S1 to S M). Each filter (6.m) is adapted to apply two different filterings on the signal applied to its input and to supply the two different filtered versions of the input signal to its two outputs. The signal processing unit 9 is adapted to supply output signals on each of the M outputs, an output signal being a combination of at least a number of input signals applied to its 2M inputs. On the receiver side a signal processing is carried out which is largely inverse to the signal processing on the transmitter side, in order to realize a signal at the output (21) that is a nearly perfect reconstruction of the input signal.
Patent CA-2020102-A1 (CA)
Title: Screw nut
Inventor: SCHNEIDER RUDOLF
IPC: F16B37/08
Filed: 1990-06-28
Abstract: ABSTRACT            The invention provides a screw nut comprising a central inner thread and a radially extending slit, the width thereof essen-tially corresponding to the diameter of the central inner thread. Thus, a threaded bolt or a threaded stud can be radial-ly inserted into said screw nut body. In order to avoid that the screw nut is displaced away from the threaded bolt or stud during tightening of the screw nut, the central inner thread comprises a plurality of thread turns provided with axially extending recesses directed towards the end surface of the screw nut which is under load when the screw nut is tightened on the threaded bolt or stud.
Patent CA-2022951-A1 (CA)
IPC: B65H54/76
Filed: 1990-08-07
Abstract: An automatic startup device includes a roll assembly for discharging the fiber web; a web transporting arrangement situated under the roll assembly for gathering and advancing the web; and a trumpet situated under the web transporting arrangement.  The trumpet has separable parts between which the web is introduced.  In a first position the two trumpet parts are at a relatively large distance from one another, whereby the web is discharged by the trumpet in a substan-tially unaltered state and in a second position the two trumpet parts are at a relatively small distance from one another, whereby the web is compressed and discharged by the trumpet as a sliver.  There are further provided a web delivery arrangement under the trumpet for receiving and removing the web; and a calender roll pair arranged under the trumpet for receiving and advancing the sliver discharged by the trumpet.
Patent CA-2024003-A1 (CA)
IPC: B29C48/12
Filed: 1990-08-29
Abstract: An extruded buckling-resistant longitudinally insertable drain or venting hose of PVC or a similar thermoplastic material which can be mounted in inaccessible hollows of a conveyance, especially a motor vehicle body, has longitudinally-extending radial ribs coextruded with the PVC body and composed preferably of chlorinated polyethylene.  As a result, the hose has improved sound-damping properties and can be more readily inserted into place.
Patent CA-2024576-A1 (CA)
Title: Hmg-coa reductase-inhibiting substituted amino-pyridines
Inventor: FEY PETER
IPC: C07D213/73
Filed: 1990-09-04
Abstract: ABSTRACT OF THE DISCLOSURE    HMG-CoA reductase-inhibiting compounds of the formula                   (I) in which X -  represents  a  group  of  the  formula  -CH2-CH2-  or -CH=CH-, R -  represents a group of the formula    or     R1 _ represents optionally substituted aryl, R2 - represents -CH2OR8 or -X-R, and R5  -  represents  straight-chain  or  branched  alkyl having up to 10 carbon atoms, or and their salts.     Le A 27 158
Patent CA-2029138-A1 (CA)
Title: Ring trip detector for a solid state telephone line circuit
Inventor: PATEL LALIT O
IPC: H04M3/02
Filed: 1990-11-01
Abstract: A RING TRIP DETECTOR FOR A SOLID STATE TELEPHONE LINE      CIRCUIT                          ABSTRACT A ring trip detector for a solid state line circuit is disclosed that includes, a logic interface circuit connected to a central controller.  The logic interface circuit is arranged to receive signals from the central controller for applying an ac ringing current to the subscriber loop and to transmit status signals from the ring trip detector to the central controller.  A resistor, connected to the subscriber loop through a ringing current conductor, detects and develops a differential voltage that is proportional to the ac ringing current.  A voltage convertor circuit, connected to the resistor, divides down the differential voltage and converts the differential voltage to a ground referenced voltage signal.  An active filter circuit, connected to the voltage convertor circuit, receives the ground referenced voltage signal and filters out an ac voltage component leaving a dc voltage component that is drawn into the subscriber loop from the central office battery, when a subscriber instrument goes "off-hook".  A comparator circuit, connected to the active filter circuit, develops and transmits to the logic interface a ring trip signal when the dc voltage component is less than the threshold voltage, terminating the ringing current and providing a status signal to the central controller indicating that a ring trip has occurred.
Patent CA-2029163-A1 (CA)
Inventor: RITTER ANN M
IPC: C23C4/08
Filed: 1990-11-01
Abstract: RD-19,096 SILICON CARBIDE FIBER-REINFORCED TITANIUM BASE      COMPOSITES OF IMPROVED TENSILE PROPERTIES     ABSTRACT OF THE DISCLOSURE           A method of altering the crystal form of an alloy is disclosed.  To accomplish this change in crystal form, the concentrations of the more volatile constituents of the alloy are reduced and the concentration of the less volatile constituents is increased on a relative basis.  The process may be carried out in forming a reinforced structure.  For this purpose, an improved reinforced matrix and a method of forming it are taught.  The reinforcement may be silicon carbide filaments or other reinforcing filaments.  The matrix is a titanium 1421 alloy nominally containing 14 weight percent of aluminum and 21 weight percent of niobium.  The matrix is formed by plasma-spray forming a powder of the alloy to impart to the alloy particles a superheat during the plasma-spraying as the particles traverse the plasma plume. As a result of the superheat, the alloy is changed in its composition to reduce the aluminum concentration and to increase the niobium and titanium concentrations on a relative basis.  As a result of the change in composition the crystal form of the spray deposited matrix is altered to increase the amount of the beta-phase crystal form of the alloy which is present and to decrease the amount of the alpha-2 crystal form of the alloy which is present.  The result is the formation of a matrix which is less subject to cracking and which has greater strength.