baber/WOPTO huggingface dataset:
Patent CA-2183400-A1 (CA)
Title: Low-odor, higher molecular weight polyether polyols, a process for producing them, and their use for the production of polymers, cosmetics and pharmaceutical products synthesized from polyether polyols
Inventor: GUPTA PRAMOD
IPC: C08G65/30
Filed: 1996-08-15
Abstract: Low-odor, higher molecular weight polyether polyols are produced by purifying the polyether polyols at temperatures of l10 to 150°C and pressures of 10 to 70 hPa with the addition of 5 to 30% by weight of water, wherein the water is passed in finely divided form, with a droplet diameter of about 5 to 100 µ, through the polyether polyols to be purified for a time of metered addition of 1 to 5 hours.
Patent CA-2190501-A1 (CA)
Title: Piperazine, piperidine and tetrahydropyridine derivatives of indol-3-ylalkyl as 5-ht1d-alpha agonists
Inventor: CASTRO PINEIRO JOSE LUIS
IPC: A61P25/06
Filed: 1995-05-18
Abstract: Compounds of formula (I), or a salt or prodrug thereof, wherein Z represents an optionally substituted five-membered heteroaromatic ring selected from furan, thiophene, pyrrole, oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole and tetrazole; E represents a chemical bond or a straight or branched alkylene chain containing from 1 to 4 carbon atoms; Q represents a straight or branched alkylene chain containing from 1 to 6 carbon atoms, optionally substituted in any position by a hydroxy group; T represents nitrogen or CH; U represents nitrogen or C-R2; V represents oxygen, sulphur or N-R3; -F-G- represents -CH2-N-, -CH2-CH- or CH=C-; R1 represents C3-6 alkenyl, C3-6 alkynyl, aryl(C1-6)alkyl or heteroaryl(C1-6)alkyl, any of which groups may be optionally substituted; and R2 and R3 independently represent hydrogen or C1-6 alkyl are selective agonists of 5-HT1-like receptors, being potent agonists of the human 5HT1D.alpha. receptor subtype, whilst processing at least a 10-fold selective affinity for the 5-HT1D.alpha. receptor subtype, relative to the 5-HT1D.beta. subtype; they are therefore useful in the treatment and/or prevention of clinical conditions, in particular migraine and associated disorders, for which a subtype-selective agonist of 5-HT1D receptors is indicated, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT1D receptor agonists.
Patent CA-2192060-A1 (CA)
Title: Device for coupling rail vehicles
Inventor: LOHMANN ALFRED
IPC: B62D47/02
Filed: 1996-03-26
Abstract: The invention relates to a device for coupling rail vehicles consisting of several interconnected first and second vehicle sections (1, 2) with a rotary coupling (3) having a live ring, in which in the coupling region (3) between two vehicle sections (1, 2) there is a rotation restricting device (4) essentially consisting of two sliders (12, 13) fitted at the periphery of the live ring of the rotary coupling (3), operating together under frictional contact and secured to one of the two vehicle sections (1, 2) coupled at the rotary coupling (3).
Patent CA-2192486-A1 (CA)
Inventor: WHITE MORRIS F
IPC: A61K38/00
Filed: 1995-06-08
Abstract: L'invention concerne un acide nucléique pratiquement pur comprenant une séquence codant pour un peptide pp60?PIK¿ c'est-à-dire présentant une activité de pp60?PIK¿.
Patent CA-2192872-A1 (CA)
Inventor: LAI I-TAI
IPC: F16D65/02
Filed: 1996-12-13
Abstract: A hub brake for bicycles including a cylindrical hub in which is fitted a screw rod extending therethrough, a driving device including a driving screw, a bearing, an adjusting nut, a bearing and an arm, a recovering device including a torsion spring, a helical spring and a nut, and a braking device including a brake block and a positioning plate, and a cover fixedly mounted on the positioning plate, whereby the hub brake for bicycles can effectively reduce speed or stopping motion of a bicycle.
Patent CA-2193425-A1 (CA)
Title: Processeur graphique et systeme graphique
Inventor: SUZUKI KATSUNORI
IPC: G06T15/00
Filed: 1996-12-19
Abstract: Processeur graphique comprenant : une table de source lumineuse supportant des données de source; une unité de conversion pour convertir, d'un type flottant (type de nombre réel à virgule flottante en simple précision) à un type entier, les données de source lumineuse à positionner dans la table lumineuse; une unité de calcul de produit scalaire pour calculer les produits scalaires des directions normales, des directions des sources lumineuses et des directions de lignes de vision aux sommets sur la base des données de source lumineuse; et une unité de calcul de couleur  pour l'exécution des calculs de source lumineuse sur la base des produits scalaires calculés afin de déterminer les couleurs des sommets.
Patent CA-2195253-A1 (CA)
Inventor: GISKO JERRY A
IPC: B29C48/525
Filed: 1997-01-16
Abstract: An improved conveyer apparatus for processing and degassing a mixture of materials for forming solid surface end products, such as cultured marble and other polymer casting products.  The conveyer includes a conveyer housing with an internal passageway having a conically shaped upstream section and a downstream section.  A rotatable screw is located in the internal passageway and has a shape that corresponds to the shape of the internal passageway, so that an upstream section of the screw is conically shaped.  The upstream section of the passageway has an inlet that connects to a source of materials, such as a mixer, and the downstream section has an outlet that permits the mixture of materials to exit the conveyer apparatus.  A vacuum source is connected to the conveyer housing to remove gases from the mixture as it is being conveyed through the conveyer.
Patent CA-2196369-A1 (CA)
Title: Chemically induced stimulation of coal cleat formation
Inventor: RIESE WALTER C
IPC: E21B43/26
Filed: 1997-01-30
Abstract: A method for increasing the production of methane from a subterranean coal formation by chemically stimulating the formation of cleats in the coal formation in order to facilitate removal of formation water, and increase the rate of methaneproduction from the coal formation.   The method comprises injecting an aqueous oxidant solution into the coal formations to stimulate the formation of cleats in the coal formation; and thereafter producing methane from the coal formations at an increased rate. The aqueous oxidant solution preferably comprises hypochlorite, metaic salts of hypochlorous acid, hydrogen peroxide, ozone, oxygen and combinations thereof.
Patent CA-2198893-A1 (CA)
Title: Transmission of graphic images
Inventor: CLARK-SCHREYER VERONIKA
IPC: H04N5/45
Filed: 1996-07-01
Abstract: A method and arrangements for transmitting, receiving and displaying graphic images. The graphic images include dynamic icons (dynacons), i.e. graphic subpictures comprising two or more motion phases. By alternately displaying said motion phases, an attractive motion is created. They enhance the appearance of graphic images considerably. This is especially useful in the transmission of an electronic television program guide, e.g. to indicate the type of television programs to come.
Patent CA-2199470-A1 (CA)
Title: Allelic variation of the serotonin 5ht2c receptor
Inventor: LAPPALAINEN JAAKKO
IPC: C12N5/10
Filed: 1995-09-21
Abstract: Isolated DNA encoding the serotonin 5HT2C receptor with serine at amino acid position 23, antibody specific to such a variant receptor and the variant receptor protein itself are used in methods for detecting the presence of an allelic variant of the serotonin 5HT2C gene or receptor.
Patent CA-2205110-A1 (CA)
Inventor: ZADOR DAVID T
IPC: A41F9/02
Filed: 1996-12-06
Abstract: The present invention provides an improved material and method for . forming a tunnel in a product, such as a garment or other textile product, through which a drawstring can be operated. The present invention avoids the laborious and potentially damaging process of sewing-in a drawstring tunnel and replaces it with a pre-formed tape that is adhered in place to form the tunnel. The tape can be formed and attached through a variety of methods.
Patent CA-2207519-A1 (CA)
Title: Universal authentication device for use over telephone lines
Inventor: WILKES JOSEPH E
IPC: G07F7/10
Filed: 1997-06-10
Abstract: A method is provided for securely transmitting information from a telephone to a calling party over a telephone network. In accordance with the method, encrypted audio signals are received from the telephone over a communication path to an authentication mechanism that may be located in the telephone network. The communication path is then disabled by placing the telephone is a hold state. The encrypted audio signals are decrypted to yield decrypted audio signals. The decrypted audio signals are transmitted to the calling party while the communication path is disabled. Finally, a communication path is enabled from the telephone to the calling party subsequent to transmitting the decrypted audio signals. This method provides a high degree of security since the communication path between the user and the authentication mechanism is disabled when the decrypted message is transmitted to the called party. Accordingly, if a party were to intercept the communicationpath between the user and the authentication mechanism (such as a listener usinga receiver to intercept a wireless telephone transmission), the party could not intercept the decrypted message.
Patent CA-2208988-A1 (CA)
Inventor: HERRMANN WOLFGANG ANTON
IPC: C07D301/06
Filed: 1995-12-19
Abstract: L'invention concerne des composés de la formule générale (1): M¿x?O¿y?(L)¿z?, servant de catalyseurs d'époxydation sélective d'alcènes dans laquelle les indices x, y et z ont la signification suivante: x représente un nombre entier compris entre 1 et 3, y représente un nombre entier compris entre 1 et 2x + 1, y étant choisi de manière à ce que la somme de x + z produise un indice d'oxydation métallique de +5(vanadium) ou de +6(molybdène, ruthénium); z représente un nombre entier compris entre 2 et 2x; M désigne molybdène, ruthénium ou vanadium, et L désigne un ligand donneur N, O ou S. L'invention concerne en outre des catalyseurs hétérogènes utilisés pour l'oxydation sélective d'oléfines en présence d'oxygène contenant un matériau porteur organique ou inorganique et des composés de la formule générale (1), ainsi qu'un procédé d'époxydation sélective d'alcènes de la formule (a) avec de l'oxygène atmosphérique, en présence d'un catalyseur de la formule générale (1).
Patent CA-2209986-A1 (CA)
Inventor: QUAIFE CHESTER
IPC: A01K91/06
Filed: 1997-07-08
Abstract: A sport fishing flasher includes a first body and a second body. The first body has a female receptacle.   The second body has a male member. The male member is received in the female receptacle in friction fit relation,  detachably coupling the first body and the second body.  A fishing line is secured to the second body.   A force exerted by a fish hooked on a hook attached to the fishing line results in the second body detaching from the first body.
Patent CA-2213311-A1 (CA)
Title: Carbothermal production of alkali metals
Inventor: YOGEV AMNON
IPC: B01J19/12
Filed: 1997-08-19
Abstract: Production of metallic sodium and potassium by reaction of their hydroxides or carbonates with carbon.  The carbon may be produced in situ by pyrolysis of a pyrolyzable carbonaceous material.  There are further disclosed a process and installation for performing the production while using solar energy.
Patent CA-2213983-A1 (CA)
Title: Appareil et methode pour determiner les concentrations d'huiles ou d'autres contaminants non volatils dans des solvants de nettoyage
Inventor: OSMANSKI FRANK A
IPC: G01N33/28
Filed: 1997-08-25
Abstract: Appareil pour déterminer la concentration d'huiles ou d'autres contaminants solubles présents dans un solvant d'hydrocarbures de pétrole. L'appareil comporte un positionneur pour une feuille fibreuse à deux couches, ou deux feuilles séparées, avec dans chaque cas une couche supérieure de matière adsorbant les substances polaires et une couche inférieure adsorbant les liquides constitués d'hydrocarbures non polaires. Lorsque le liquide contaminé s'évapore, comme par chauffage, une tache caractéristique indicatrice du niveau de contamination, demeure sur la couche inférieure. La méthode consiste à appliquer un solvant contaminé, à séparer les particules dans la partie fibreuse supérieure et à laisser les matières solubles colorer la couche inférieure. Certaines versions de l'appareil comprennent un système de chauffage incorporé et un dispositif de circulation.
Patent CA-2214036-A1 (CA)
Title: Tobacco treatment
Inventor: DE GRANDPRE YVES D
IPC: A24B15/24
Filed: 1992-12-29
Abstract: This invention provides a method for reducing the protein content of tobacco material which includes extracting the tobacco material with a surfactant and optionally, a proteolytic enzyme.  The tobacco material may be first extracted with an aqueous solvent to produce an aqueous extract before being treated with the surfactant. This invention also provides a method for removing polypeptides from an aqueous extract of tobacco material which includes treating the extract with an insoluble adsorbent selected from the group comprising hydroxyapatite and a fuller's earth mineral such as bentonite.  Treatment of the aqueous extract with bentonite will produce an extract having a reduced pigment an polypeptide content.
Patent CA-2214148-A1 (CA)
Title: Extendable rearview mirror
Inventor: LEWIS JIMMIE
IPC: B60R1/078
Filed: 1996-02-01
Abstract: An exterior rearview mirror assembly (20) for a vehicle including an extendable mirror comprises a mirror housing (24), a mirror (26) disposed in the mirror housing (24). The mirror assembly (20) comprises a post (30) disposed in the mirror housing (24) and extending along a longitudinal horizontal axis which extends through a plane defined by the mirror (26). Mirror frame (28) includes detentes (40 and 41), one of which is selectively received in a notch (43).
Patent CA-2215276-A1 (CA)
Title: Method and apparatus for detecting burner blowout
Inventor: ST ONGE KENNETH JOHN
IPC: F02C9/00
Filed: 1996-03-14
Abstract: Method for detecting burner blowout comprises the follow-ing steps: periodically measuring the actual pressure of ignition at successive intervals of time; periodically measuring the actual rotational speed of the generator shaft at the successive intervals of time; calculating the rate of change in the actual pressure over a successive interval of time; calculating the rate of change in the actual rotational speed over the successive interval of time; comparing the rate of change in the actual pressure of ignition over the successive interval of time to a reference pressure rate of change value; comparing the rate of change in the actual rota-tional speed over the successive interval of time to the reference speed rate of change value; and closing the fuel valve in response to the reference pressure rate of change value being greater than the rate of change of the actual pressure of ignition over the suc-cessive interval of time, in the presence of the rate of change of actual rotational speed over the successive interval of time being less than the reference speed rate of change value, thus stopping the fuel flow to the burner.
Patent CA-2215346-A1 (CA)
Title: Sample collection device
Inventor: CHANDLER HOWARD MILNE
IPC: B01L3/00
Filed: 1996-03-13
Abstract: A sample collection device (10), particularly for use in collection of faecal samples for occult blood detection, comprises a collection member having at least one absorbent matrix (12) thereon, and a protective cover member (14) for the collection member, the protective cover member being adapted to receive and shield at least the or each absorbent matrix of the collection member when the collection member is assembled therewith.
Patent CA-2218050-A1 (CA)
Title: Method for preventing fouling and sheeting in gas phase reactors
Inventor: NUMMILA-PAKARINEN AULI
IPC: C08F2/00
Filed: 1996-04-10
Abstract: A method for preventing sheeting problems in a gas phase reactor in such multi-phase polymerization process, which comprises at least one loop reactor followed by a gas phase reactor, where the polymerization is continued in the presence of added monomers, and in which process a fouling preventive agent is used to prevent fouling or sheeting in the reactors. According to the invention 30-70 % of the end product is polymerized in the loop reactor, where the whole amount of the fouling preventive agent is added, the amount of the fouling preventive agent being higher than necessary to prevent the fouling in the loop reactor.
Patent CA-2218223-A1 (CA)
Title: Reduced complexity signal transmission system
Inventor: WUPPERMANN FRIEDHELM
IPC: G10L19/12
Filed: 1997-01-31
Abstract: In a CELP coder a comparison between a target signal and a plurality of synthetic signals is made. The synthetic signal is derived by filtering a plurality of excitation sequences by a synthesis filter having parameters derived from the target signal. The excitation signal which results in a minimum error between the target signal and the synthetic signal is selected.      The search for the best excitation signal requires a substantial computational complexity. To reduce the complexity a preselection of a small number of excitation sequences is made by selecting a small number of excitation sequences resembling the most a backward filtered target signal.      With this small number of excitation sequences a full complexity search is made. Due to the reduced number of excitation sequences involved in the final selection the required computational complexity is reduced.
Patent CA-2218345-A1 (CA)
Title: Novel hydroxamic acid and amino-carboxylate compounds as metalloprotease and tnf inhibitors
Inventor: DECICCO CARL PETER
IPC: A61K31/426
Filed: 1996-04-17
Abstract: The present invention provides novel hydroxamic acids and carbocyclic acids and derivatives thereof and to pharmaceutical compositions and methods of use of these novel compounds for the inhibition of matrixmetalloproteinases, such as stromelysin and other matrix metalloproteinases, and also inhibit the production of tumor necrosis factor (TNF), and are therefore useful for the treatment of arthritis and other related inflammatory diseases. These novel compounds are represented by Formula (I).
Patent CA-2218794-A1 (CA)
Title: Safety gear
Inventor: TYLLINEN JUHA
IPC: B66B5/18
Filed: 1997-11-06
Abstract: A safety gear (1) comprising a frame provided  with  a  braking  surface, which, when the safety gear is braking,  is  pressed  against  a  first guide  surface  of  a  guide  rail. Mounted in  the  frame  is  a roller (3),  which moves along a track in the safety gear. The track comprises at least a first gradient and a second  gradient,  the  first  gradient having a larger pitch angle than the second  gradient.   The  roller  is pressed against a second guide surface  of  the  guide  rail  when  the safety gear is braking. The roller (3) has a stronger grip on the track on the first gradient than on the second gradient.
Patent CA-2220369-A1 (CA)
Title: Casino card game
Inventor: HSU JAMES
IPC: A63F3/00
Filed: 1997-11-06
Abstract: A method for playing a card game having a dealer and at least one player, wherein the dealer deals two cards facing up to each player and at least two cards to the dealer, one card dealt face up and the other card or cards dealt after the playing of the players' hands.      Each player arranges his cards within a boxed-in area located in front of the player having four rectangles therein. The four rectangles define two rows and two columns to provide four lines of chances for matching a winning number. The winning number is determined by the addition of the dealer's two cards and may also include a second winning number determined by the difference of the dealer's two cards. The game provides conditions for a second chance game for players who do not win with the dealer's first two cards.
Patent CA-2225198-A1 (CA)
Inventor: HATCH ROBERT P
IPC: B01J27/10
Filed: 1997-12-18
Abstract: L'invention concerne une méthode de synthèse chimique de la désoxypyridinoline (DPD). Cette méthode comprend la préparation de 3-hydroxypyridinium protégé à partir de N alpha(protégé)lysine et d'un 5,6-époxy-2-N(protégé)-O(protégé)- (2S)-2-aminohexanoate avec déprotection subséquente pour produire la DPD.
Patent CA-2227207-A1 (CA)
Title: Multiwavelength laser source
Inventor: VESELKA JOHN J
IPC: G02F1/225
Filed: 1998-01-19
Abstract: A light source for generating many precisely spaced wavelength channels, based on the periodic modulation of light. CW light is periodically amplitude modulated and then coupled to a non-linear fiber where it undergoes additional modulation by the process of self-phase modulation or other non-linear effects. In a general embodiment of the multi-wavelength source (MWS), an optical modulator driven by a periodic electromagnetic signal imposes periodic amplitude modulation on light from a single longitudinal mode CW laser. The light is then coupled to a non-linear medium with an intensity dependent refractive index where it generates higher order spectral sidebands by the process of self-phase modulation and/or other non-linear effects. The frequency spacing between the spectral components is equal to the repetition rate of the modulation. The shape of the spectrum (i.e. the relative amplitudes of the spectral components) can be modified by adjustments to: the amplitude modulated waveform; the optical power of the waveform. when coupled to the non-linear medium; and/orcharacteristics of the non-linear medium such as the non-linear refractive index, the length and the dispersion.
Patent CA-2229954-A1 (CA)
Inventor: OSKAM HERMAN
IPC: E06B9/323
Filed: 1998-02-19
Abstract: A window covering assembly having first and second rails adapted to be secured to first and second sides of a window frame, at least one resiliently tensionable cable member (16) extending between the first and second rails, a flexible covering material (14) being supported and guided by the tensionable cable members between extended and contracted conditions of material. Tensioning means (18) are provided to tension the cable members (16), the tensioning means comprising a slider (18) manually longitudinally slidable along one of said rails, to which said at least one cable member (16) is attached, and a clamp, preferably a self-locking clamp formed on said slider to clamp the slider at a desired location on the second rail (12).
Patent CA-2230378-A1 (CA)
Title: Lice treatments and insect repellent blends, lotions, and sprays
Inventor: BELDOCK DONALD T
IPC: A61Q17/02
Filed: 1996-08-27
Abstract: Insect repellent blends, lotions, and sprays are provided. The insect repellent blend includes crystalline 3,8 P-menthanediol (Chinese crystal), and at least two of citronella, geraniol, terpineol and rhodinol. For mosquito and tick repellency, the blend is dissolved or dispersed in a conveying medium so that the resulting product preferably has weight percentages of approximately 0.05 % citronella, approximately 0.06 % geraniol, approximately 0.08 to 0.5 %  crystalline 3,8 P- menthanediol approximately 0.06 % terpineol and/or approximately 0.08 % rhodinol. For lice treatment, the blend is preferably dissolved or dispersed in a water based conveying medium so that the resulting product has weight percentages of approximately 0.36 % citronella, approximately 0.43 % geraniol, approximately 2 % crystalline 3,8 P-menthanediol, approximately 0.43 % terpineol and/or approximately 0.57 %  rhodinol.