baber/WOPTO huggingface dataset:
Patent CA-2107172-A1 (CA)
Title: Compactors
Inventor: ABEL GUNTHER
IPC: B01D33/11
Filed: 1993-09-28
Abstract: ABSTRACT OF THE DISCLOSURE A compactor has a first feed auger section for advancing a mass of material which is to be compacted a compactor auger section for receiving and compacting the material from the first feed auger section, a second feed auger section for receiving and advancing the material from the compactor auger section, the first and second feed auger sections and the compactor auger sections having co-axial auger screws and a rotary head for receiving the material from the second feed auger section and deflecting the material radially outwardly of the rotary head.
Patent CA-2108267-A1 (CA)
Title: Catalyst and process for hydrocarbon dehydrogenation
Inventor: KAMINSKY MARK P
IPC: B01J29/06
Filed: 1993-02-12
Abstract: A catalyst and process are described which are particularly effective in the dehydrogenation of one or more C3 to C6 saturated hydrocarbons. The catalyst, made by a simplified preparation process, is a platinum-loaded aluminosilicate molecular sieve exhibiting the MFI structure. The supported or unsupported catalyst when used to dehydrogenate alkanes is long-lived; it also has an excellent conversion and selectivity to the corresponding olefin while exhibiting minimal coking.
Patent CA-2109094-A1 (CA)
Title: An organ specific emulsion
Inventor: NORRLIND BJOERN
IPC: A61K36/87
Filed: 1992-04-22
Abstract: Emulsions for intravenous administration based on lipophilic iodized and/or bromated substances with emulsifiers and containing derivatives of cyclopenta-phenanthrene, wherein the weight ratio between emulsifier and derivative in the emulsion is between 10:1 and 1:2. These emulsions are intended for use as X-ray contrast agent, particularly for visibilizing the presence of tumours, metastases and the like in liver and spleen. The derivative of cyclopenta-phenanthrene is preferably cholesterol, phytosterol, sitosterol, sigmasterol and/or campesterol. The invention also relates to a method for preparing the emulsion and to the use of the emulsion in the preparation of an X-ray contrast medium for computed chromatographic examinations.
Patent CA-2114156-A1 (CA)
Title: Elucidation and Synthesis of Selected Pentapeptides
Inventor: PETTIT GEORGE R
IPC: C07K1/16
Filed: 1994-01-25
Abstract: The sea hare Dolabella auricularia has yielded many structurally distinct peptides which possess antineoplastic activity. Presently the compound denominated "dolastatin 10" represents then most important of such peptides because of its demonstrated potential as an anticancer drug.      The present invention relates to the systematic creation of five unique pentapeptides by selectively coupling a tripeptide - trifluoroacetate salt with a preselected dipeptide-trifluoroacetate salt which provide active molecules capable of emulating the measured therapeutic effect of dolastatin 10. The pentapeptides hereof have the structure shown below:    wherein R is selected from the following group of substituents:
Patent CA-2114550-A1 (CA)
Inventor: WALKER ROBERT A
IPC: F02M35/14
Filed: 1992-07-29
Abstract: The combination apparatus (20) silences and filters air flow and separates air-contaminant mixtures. An air filter (100) joins an annular housing (22) which has an outer wall (24) and a channel (26) defining a central axis (28), the channel (26) having a primary gas inlet (30) coupled to the air filter (100) and a primary gas outlet (32) and a channel wall (34). The apparatus (20) has a secondary inlet port (42) passing through the outer wall (24). A secondary outlet port (46) defines an opening in the channel wall such that there is no straight line flow path between the secondary inlet and the secondary outlet. An air silencer (90) is contained within the channel (26). A passageway between the secondary inlet and the secondary outlet is defined exteriorly by the outer wall (24) and interiorly by the channel wall (34).
Patent CA-2116564-A1 (CA)
Inventor: SKONIECZNY JOSEPH P
IPC: B64C13/18
Filed: 1992-07-31
Abstract: A helicopter flight control system (21) includes a model following control system architecture which automatically provides a coordinating yaw command signal to the helicopter tail rotor to coordinate helicopter flight during a banked turn. The control system processes information from a variety of helicopter sensors (31) in order to provide the coordinating yaw command signal on an output line (72) to the tail rotor (20) of the helicopter.
Patent CA-2117911-A1 (CA)
Title: A process for preventing the formation of deposits in a construction drainage system
Inventor: WEGMUELLER MARCEL CHRISTIAN
IPC: E21B37/06
Filed: 1994-02-14
Abstract: Abstract In drainage systems in buildings and  excavations there is waste and ground water with a high dissolved material con-tent.  These mainly inorganic substances often cause the build-up of hard deposits in the water conveying parts of the drainage systems, e.g. waste water pipes. These depo-sits reduce the drainage cross section of the drainage sy-stems thus preventing the water from flowing freely and thus causing back-ups which can result in considerable da-mage.  The current processes fo removing these deposits are electro-mechanical cleaning and high-pressure rinsing or abrading with water.  These processes are laborious, expen-sive and cause interruptions in operation.  It is the aim of the invention to prevent the formation of such depo-sits.  To this end, a conditioning agent in aqueous form is added via a metering installation at one or more points in the drainage system.  The conditioning agent is mixed with the water arriving at the next channel and prevents the dissolved substances from separating out and causing depo-sits.
Patent CA-2118521-A1 (CA)
Title: Polymeric film-based electrochemical sensor apparatus
Inventor: NODING STEPHEN A
IPC: G01N27/49
Filed: 1993-04-15
Abstract: An apparatus for detecting an ionizable compound or changes in concentration of an ionizable compound by means of a detector assembly containing a substantially inert polymer film acting in an electrolytic capacity, electrodes attached to the polymer film, and apparatus operatively associated with the electrodes for measuring a change in voltage or current in the circuit responsive to the presence of an ionizable compound in an environment in which the film is generally situated or responsive to a change in the concentration of such compound in this environment from a basellin concentration.
Patent CA-2120094-A1 (CA)
Inventor: LAROSA CHRISTOPHER P
IPC: H03L7/085
Filed: 1994-03-28
Abstract: A radio receiver directly digitizes the phase of an intermediate frequency (IF) signal with a desired resolution The frequency of the reference oscillator (503) in the direct phase digitizer (403) is reduced when compared to the frequency previously required for the same resolution. The reduction in the reference oscillator frequency is accomplished by differentiating between IF zero-crossings that occur during the first half of a reference oscillator cycle and zero-crossings which occur during the second half of the reference oscillator cycle. The apparatus utilizes 2 zero-crossing detectors (503, 505), the first zero-crossing detector (503) is driven by a positive edge of the reference oscillator signal and the second zero-crossing detector (505) is driven by a negative edge of the reference oscillator signal. Depending upon the alignment of the negative edge zero-crossing indicator and the positive edge zero-crossing indicator, the N-bit phase signal is modified or shifted by one-half a phase sector.
Patent CA-2120582-A1 (CA)
Title: Process for the fabrication of a bipolar membrane and process for the fabrication of an aqueous solution of an alkaline metal hydroxyde
Inventor: POSAR FRANCESCO
IPC: B01D61/44
Filed: 1994-04-05
Abstract: Process for the manufacture of a bipolar membrane, according to which a cationic membrane is treated with a compound of a polyvalent metal and with an aqueous alkali metal hydroxide solution comprising lithium hydroxide and is then joined side by side to an anionic membrane. The bipolar membrane finds an application in the manufacture of aqueous sodium hydroxide solutions by electrodialysis. No figure.
Patent CA-2121086-A1 (CA)
Title: Closure with tamper evidence structure
Inventor: NEVERAS GEORGE J
IPC: B65D47/08
Filed: 1994-04-12
Abstract: Disclosed is a closure for a container, the closure having a lid hinged to a base. The base of the closure has structure for locking the closure on a dispensing nozzle of the container. The closure has tamper evidence structure, to indicate whether the lid and base have been separated (that is, whether the closure has previously been opened). The tamper evidence structure includes a tear band;  the closure cannot be opened without removal of the tear band. The closure is configured, and positioned relative to the dispensing nozzle, such that relatively little area of the closure contacts the material dispensed from the container as the material is dispensed, thereby reducing absorption of material components (e.g., flavors and/or oils of the material dispensed) by the closure. The top surface of the closure lid is configured such that the container and closure can be stably stood on end on the closure lid when the lid is in the closed position. The closure can be held at least two positions on the dispensing nozzle, a first position where the closure is locked on the dispensing nozzle and a second position where the closure is held on the dispensing nozzle but not locked thereon.
Patent CA-2121857-A1 (CA)
Title: Bi-modal step exercise apparatus having user-selectable step mode
Inventor: BACALZO DEAN
IPC: A63B23/04
Filed: 1994-04-21
Abstract: ABSTRACT   A bi-modal step exercise apparatus includes a crossover pulley mechanism that permits the user to select a dependent mode of operation and an independent mode of operation.  The apparatus has a pair of step beams pivotally mounted to the frame of the apparatus. The pivotal mounting permits rotational movement of the beams in a vertical direction.  The apparatus has a resistive load mechanism which is secured to the frame and which generates a user resistive load.  The step beams are connected to the resistive mechanism by the crossover pulley mechanism which includes two pulleys, each of which is connected by a line to one of the two step beams.  The two crossover pulleys can rotate independently of each other to permit the independent operation of the two step beams.  The crossover pulley mechanism also includes a spring which causes one pulley to rotate with respect to the other, thereby elevating both step beams when no downward force is exerted on the step beams.  In addition, the crossover pulley mechanism includes an engagement mechanism which rotationally engages one crossover pulley to the other crossover pulley.  When the pulleys are rotationally engaged, the pulleys rotate synchronously such that the two step beams operate in a dependent mode.  The exercise apparatus may also include a flywheel constructed in part from electrically conductive material and a magnetic mechanism for providing a resistive load by creating eddy currents in the flywheel.  The magnetic mechanism is moved in a radial pathway relative to the flywheel by an associated motor-driven rack.
Patent CA-2122285-A1 (CA)
Title: Process for the preparation of 2(3h)-benzothiazolones
Inventor: FORSTINGER KLAUS
IPC: C07D277/68
Filed: 1994-04-27
Abstract: Abstract of the disclosure:           Process for the preparation of 2(3H)-benzothiazolones The process for the preparation of 2(3H)-benzothiazolones which are optionally substituted on the benzene ring by reacting a 2-aminobenzothiazole which is optionally substituted on the benzene ring with a diazothization agent in the presence of aqueous hydrochloric acid, if appropriate with addition of a chloride, to give a diazonium chloride, reacting the diazonium chloride directly to give a 2-chlorobenzothiazole, which is optionally substituted on the benzene ring, and hydrolyz-ing the 2-chlorobenzothiazole, without intermediate isolation, at 120 - 200°C under reaction pressure.
Patent CA-2123116-A1 (CA)
Inventor: GABAS CEBOLLERO CARLOS
IPC: F16K15/14
Filed: 1993-09-15
Abstract: The closure valve comprises a passage body (10) consisting of a truncated portion (14) which is coupled at its extremity of smaller diameter to a cylindrical portion (15) whose free end is joined to the internal extremity of the rod (3) of the device (D), and which also consists of a closure body (12) coaxial with said rod (3) and freely sliding on said cylindrical portion (15). The axial orifice (20) of the closure body (12) has at its extremity facing the passage body (10) a closure seat (21) of progressively increasing amplitude and sized correspondingly to the closure seal (11) of the passage body (10). The configuration of the closure seat (21) and of the closure seal (11) cause the progressive closure of the valve (VC) when the rod (3) is actuated in a traction mode, thus enabling, during the closure, the passage of liquid fluid (F) between both half-chambers (SC1, SC2) of the main body (1). Application to the motor vehicle industry.
Patent CA-2126808-A1 (CA)
Inventor: SAINFORT PIERRE
IPC: F27B17/00
Filed: 1994-06-27
Abstract: Plaques ou tôles en alliages d'Al à durcissement structural présentant une variation continue des propriétés d'emploi selon une direction (D) et un procédé et un dispositif. d'obtention de celles-ci. Le procédé est caractérisé en ce que le revenu final est effectué en portant un des côtés du produit selon la direction (D) à une température T et l'autre côté à une température t < T pendant une durée (d). Ce traitement peut être effectué dans un four à double chambre. Cette invention trouve notamment son application dans la fabrication des longerons pour voilures d'avions.
Patent CA-2126833-A1 (CA)
Inventor: CORNFORTH DAVID A
IPC: B05D7/24
Filed: 1994-06-27
Abstract: A process is provided whereby radiation curable compositions comprising N-vinylformamide and an oligomer selected from the group consisting of epoxy-acrylate resins, polyester acrylate resins, polyurethane acrylate resins, acrylic acrylate resins, silicone acrylate resins, unsaturated polyester resins, maleate ester resins, vinyl ether resins and mixtures thereof are applied to the surface of a substrate and subsequently exposed to a radiation source until an adherent dry polymerized film is formed on t he substrate. These compositions are useful for a wide range of applications including pigmented and unpigmented coatings, printing inks, adhesives and the like.
Patent CA-2127666-A1 (CA)
Title: Continuous oxygen sensor
Inventor: DUBREUIL ALAIN A
IPC: G01N27/409
Filed: 1994-07-08
Abstract: An oxygen and metal-in-slag sensor comprises a zirconia rod partially stabilised with either calcium oxide, magnesium oxide, or yttrium oxide, one end of which is exposed to the melt, typically in a lead blast furnace forehearth or a copper furnace discharge tundish, and the other end of which is exposed to an oxygen-containing gas, typically air. Thermocouples are provided to measure the rod temperature at least one point where it is in contact with the gas, and to measure separately the temperature in the melt adjacent to the probe. The cell is completed by a second electrode, which can be the casing in which the zirconia rod is mounted, and the thermocouple leads attached to the zirconia rod also function as part of the cell circuit. From a knowledge of the properties of the rod, the cell electrical behaviour can be used to obtain the melt oxygen potential, and the amount of metal oxide dissolved in the slag. The form of construction used is capable of surviving for an extended time period in a furnace environment.
Patent CA-2127742-A1 (CA)
Inventor: KHINKIS MARK J
IPC: F24H1/41
Filed: 1994-07-11
Abstract: A porous matrix, surface combustor-fluid heating apparatus comprising a combustion chamber, a cooled flow distributor proximate an inlet end of said combustion chamber and supporting a stationary porous bed within said combustion chamber, porous bed heat exchanger means embedded in said stationary porous bed and means for introducing a fuel/oxidant mixture into said stationary porous bed said fuel/oxidant mixture burning in said stationary porous bed.
Patent CA-2129263-A1 (CA)
Inventor: HAAVISTO SEPPO
IPC: F26B13/02
Filed: 1994-08-01
Abstract: A drying apparatus for drying a fibre web (5) between two air-tight bands (1, 2) moving in the same direction  One band (1) is heated by hot steam and the other band (2) is cooled by water, and the fibre web (5) is passed through a drying zone formed by the bands (1, 2) with at least one felt or wire (3, 4) so that the fibre web (5) 16 in contact with the surface of the heated band, and the felt or wire (3, 4) is between the fibre web (5) and the cooled band (2). In the invention the drying zone and the water chamber (14)  cooling the lower band  (2)  are in com-munication with each other for controlling the pressure difference between them by a simple connection,  such as a pipe (25) opening at a suitable height.
Patent CA-2129523-A1 (CA)
Title: Intermetallic alloys for use in the processing of steel
Inventor: MCDONALD ROBERT R
IPC: C21D9/56
Filed: 1993-02-08
Abstract: Described is a material handling apparatus for processing heated formed ferrous metal products and/or glass products comprising a face centered cubic crystal intermetallic alloy of a metal aluminide having the property of withstanding repeated thermal cycling from ambient temperature to about 1600 ° F wherein the metal is selected from the group consisting of a group VIII metal of the Periodic Table. Also described is an aluminide roll that also is characterized as retaining its ultimate tensile strength at 1600 °F of at least 75 % of the tensile strength the roll had at ambient room temperature.
Patent CA-2132066-A1 (CA)
Title: Magnetic resonance apparatus
Inventor: SALLOWAY ANTHONY J
IPC: A61B5/055
Filed: 1994-09-14
Abstract: ABSTRACT          Magnetic Resonance Apparatus In a magnetic resonance apparatus including an active noise reduction arrangement (9, 49, 51, 53) for use by a patient (5) undergoing examination in the apparatus the transducers (25, 31) of the arrangement are non-magnetic, e.g. are of the electret, piezoelectric or condenser type, and have no parts of ferromagnetic material.          (Fig.1)
Patent CA-2132141-A1 (CA)
Title: Drill for drilling rails and track rigs for railroad applications
Inventor: PERONI ENNIO
IPC: B23B41/00
Filed: 1994-09-15
Abstract: Drill for drilling rails and track rigs, in railroad applications, including a body which supports a motor driving a drilling tool through a reduction unit. Elements are provided for the translatory motion of the drilling tool with respect to the body. There are also elements for removably fixing the body with respect to the element to be drilled.
Patent CA-2133803-A1 (CA)
Title: Apparatus and method for milling clay without substantial generation of powder
Inventor: TEPPO MAYNARD
IPC: B28C1/18
Filed: 1994-10-06
Abstract: An apparatus and method for crushing clay to reduce the size of the clay to a uniform particle size distribution without generating a substantial percentage of undersized particles.  Oversized clay particles are fed to a first roller mill between a first pair of counter-rotating, adjacent, grooved rollers.  The particles exiting the first roller mill that have the desired particle size distribution are separated from the undersized and oversized clay particles exiting the first roller mill, prior to crushing the oversized particles in a second roller mill.  The oversized particles from the first roller mill then are fed to the second roller mill between a second pair of counter-rotating, adjacent rollers that are separated by a roller gap that is smaller than a roller gap of the first roller mill.  By providing grooves in the outer surfaces of at least the first pair of rollers, in the first roller mill, and by removing the on-size particles prior to sending the over-size particles to the second roller mill, about 85% to about 95% of the clay feed is crushed to the desired particle size.  It should be noted that the particle size distribution is set between a top screen and bottom screen, the product being recovered between the two screens, and the particle size distribution can be fixed by adjusting the roller gap between the rollers of one or more roller mills of the apparatus to achieve a specified particle size distribution.
Patent CA-2139361-A1 (CA)
Title: Process for enantioselective hydrogenation of the oxo c=o double bond
Inventor: GENET JEAN-PIERRE
IPC: C07D307/33
Filed: 1993-06-30
Abstract: An enantioselective method for the catalytic hydrogenation of the secondary alcohol function ketone C=O bond. The method uses a neutral ruthenium complex as the catalyst and a compound with a C=O  functionality as the substrate to be hydrogenated, and is characterized in that it includes the hydrogenation of the substrate of a diallyl compound of (diphosphino)ruthenium of formula (I), wherein al is preferably CH2CH=CH2 or CH2C(CH3)=CH2, Q is a hydrocarbon bridge with at least two catenary carbon atoms and possibly 1-4 catenary heteroatoms selected from O, S, N and Si, and each of R1-R4, which are the same or different, is a C1-18 alkyl, C5-7 cycloalkyl or C6-12 aryl group.
Patent CA-2140484-A1 (CA)
Title: Methode et appareil de transmission de donnees modulees multiniveau par codage concatene
Inventor: HUANG ZHENG
IPC: H04N21/438
Filed: 1995-01-18
Abstract: Un code de correction d'erreur de symbole externe est concaténé avec un code de treillis multidimensionnel perforé pour fournir un mécanisme optimal pour communiquer les signaux de télévision numérique dans un canal de bande passante standard (par exemple, environ 6 MHz) à travers un réseau de télévision par câble ou similaire. Un signal d'entrée est codé à l'aide d'un code de correction d'erreur de symbole externe pour produire les blocs successifs. Chaque bloc est composé de symboles N codés de 7 bits dont M représente les renseignements à communiquer et les autres symboles codés N-M comprennent des renseignements de correction d'erreur. M/N est égal à 120/126, 121/127 ou 122/128. Les blocs sont entrelacés et peuvent être complétés de symboles de contrôle qui incluent un modèle de synchronisation pour M/N = 121/127 ou M/N = 122/128. Les blocs entrelacés sont codés de façon convolutive en utilisant un code de treillis interne ayant un taux de perforation 4/5 (64 QAM) ou 3/4 (16 QAM). Les symboles de sortie sont modulés à plusieurs niveaux pour la transmission sur un chemin de communication en utilisant, par exemple, 16 ou 64 QAM. Les symboles transmis sont décodés à l'aide d'un décodeur de treillis, désentrelacés puis encore décodés dans un décodeur d'erreur de symbole externe concaténé avec le décodeur de treillis interne.
Patent CA-2141439-A1 (CA)
Inventor: FULUHATA NAOTO
IPC: C12N15/09
Filed: 1993-07-26
Abstract: A method of highly purifying human serum albumin (HSA) which comprises bringing a fraction containing HSA pro-duced by gene manipulation into contact with a chelate chromatography carrier having copper ions combined therewith and elut-ing the HSA adsorbed on the carrier by using a buffer having a pH of 5 to 7 and containing ammonium chloride as an antagonist.   This method can provide a highly pure HSA free from yeast-origin components which have been dificult to remove satisfactorily by the conventional method of purifying HSA produced by gene manipulation.