baber/WOPTO huggingface dataset:
Patent CA-2052250-A1 (CA)
Inventor: NAKAMURA MAKIO
IPC: G10L19/038
Filed: 1991-09-25
Abstract: In a speech encoder, high-frequency components of input digital speech samples are emphasized by a preemphasis filter (11). From the preemphasized samples a spectral parameter (ai) is derived at frame intervals. The input digital samples are weighted by a weighting filter (13) according to a characteristic that is inverse to the characteristic of the preemphasis filter (11) and is a function of the spectral parameter (aj). A codebook (18, 19) is searched for an optimum fricative value in response to a pitch parameter that is derived by an adaptive codebook (16) from a previous fricative value (v(n)) and a difference between the weighted speech samples and synthesized speech samples which are, in turn, derived from past pitch parameters and optimum fricative values, whereby the difference is reduced to a minimum. Index signals representing the spectral parameter, pitch parameter and optimum fricative value are multiplexed into a single data stream.
Patent CA-2052794-A1 (CA)
Inventor: DAVENPORT MARTIN F
IPC: F02D41/00
Filed: 1991-10-04
Abstract: A system and method for controlling operation of an engine wherein a fuel vapor recovery system is coupled between an air/fuel intake and a fuel supply system.  An air/fuel ratio indication is provided by a proportional plus integral feedback controller coupled to a two-state exhaust gas oxygen sensor. In response to the air/fuel ratio indication and a measurement of inducted air flow, a base fuel command is generated.  To compensate for purging of fuel vapors, a reference air/fuel ratio is subtracted from the air/fuel ratio indication and the resulting error signal generated.  This compensation factor represents a learned value which is directly related to fuel vapor concentration, and it is subtracted from the base fuel command to correct for induction of fuel vapors.  At initiation of fuel vapor purging, the rate of purge flow is incremented a predetermined amount with each change in state of the exhaust gas oxygen sensor.
Patent CA-2053644-A1 (CA)
Inventor: HOLMES-FARLEY STEPHEN R
IPC: C08F8/34
Filed: 1991-10-17
Abstract: Atty. Docket No. IR-19?EC) ABSTRACT     MODIFIED HALOGENATED POLYOLEFIN ADHESIVES     An adhesive composition useful for bonding thermoplastic elastomers to substrates such as metal that contains a halogenated polyolefin that has been chemically modified to contain a polyhydroxylic aromatic compound and/or a sulfur-containing compound. The modified polyolefin is preferably prepared by first reacting the polyolefin with an acid anhydride and then reacting the anhydride-modified polyolefin with the polyhydroxylic aromatic compound and/or the sulfur-containing compound.
Patent CA-2054132-A1 (CA)
Title: Inflatable bulkhead for a transportation vehicle
Inventor: HERMANSON JEFFREY K
IPC: B60P7/14
Filed: 1991-10-24
Abstract: ABSTRACT OF THE DISCLOSURE          INFLATABLE BULKHEAD FOR A TRANSPORTATION VEHICLE             An inflatable bulkhead for a rail car comprises a single  bag  formed  from  an  external   layer  of  a  woven polypropylene   material   and   two   inner   liners   of   high impermeability polyethylene, one inside the other.  The bag is rectangular in shape and dimensioned to extend across the full width and height of the rail car.   The bag is stitched around the edges and has a pair of tabs attached across the top edge for suspension of the bag across the vehicle by elastic cords attached to the ceiling.   The bag provides a bulkhead between goods  stored  in  an end portion  of  the  rail car relative to goods stored in a second portion adjacent a central door of the rail  car  to prevent damage of the goods by vigorous movement within the rail car.
Patent CA-2056297-A1 (CA)
Title: Method and apparatus for counting particles
Inventor: KURODA TOSHIAKI
IPC: G01N15/10
Filed: 1991-11-27
Abstract: ABSTRACT OF THE DISCLOSURE    The particle counting apparatus is intended to count the number of particles such as blood corpuscles, by passing through a minute aperture, and detecting the particles electrically.  In this particle counting apparatus, the liquid specimen is passed into the minute aperture at a specific flow rate by means of the liquid specimen discharge means (C1), and the particles are counted preliminarily, and the dilution proportion of the liquid specimen is determined when the value of this preceding counting is over a specific value, and according to this dilution proportion, the liquid specimen discharge means (C1) and diluent discharge means (C2) discharge so that the flow rates may be as specified, and the mixture is passed through the minute aperture for main counting.  By thus composing, if there are many particles, simultaneous pass does not occur in the detecting region.
Patent CA-2057695-A1 (CA)
Title: Hydrosonically microapertured thin naturally occurring polymeric sheet materials and method of making the same
Inventor: COHEN BERNARD
IPC: B29C71/04
Filed: 1991-12-16
Abstract: ABSTRACT OF THE DISCLOSURE      A microapertured thin naturally occurring polymeric sheet material is disclosed.
Patent CA-2057969-A1 (CA)
Inventor: WINSTON ALEXANDER G SR
IPC: A61G7/10
Filed: 1991-12-18
Abstract: Abstract of the Disclosure Patient Transfer Apparatus A mobile patient lift and transport apparatus for lifting and moving an incapacitated or partially incapacitated person from one location to another in a substantially forwardly leaning and supported position.          The apparatus is provided with an elongate frame which pivots about the single rotational axis defined by the wheels thereof in order to facilitate lifting and transportation.  Foot rest means, leg support means, and a vertically elevated trunk support means are provided to support the weight of the person being carried in the forwardly leaning position with his center of gravity positioned substantially over the rotational axis of the wheels.
Patent CA-2058426-A1 (CA)
Title: Fire resistant hydraulic fluids
Inventor: BOHEN JOSEPH M
IPC: C10N40/08
Filed: 1991-04-09
Abstract: Fire resistant hydraulic fluid compositions comprising (a) one or more esters of polyhaloaromatic acids per se or in combination with (b) one or more hydraulic fluids independently selected from mineral oil, poly-.alpha.-olefins, alkylated aromatics, cycloaliphatics, esters of dibasic acids, polyol esters, polyglycols, silicones, silicate esters, phosphate esters, and halogenated compositions other than (a), and (c) one or more shear-stable polymers; a method for imparting fire resistant properties to known hydraulic fluids by adding one or more esters of polyhaloaromatic acids and one or more shear-stable polymers; and the use of the inventive compositions as fire resistant hydraulic fluids.
Patent CA-2058593-A1 (CA)
Title: Therapeutic benzazapine compounds
Inventor: CHAPDELAINE MARC J
IPC: A61P25/28
Filed: 1991-12-30
Abstract: ABSTRACT           A method for the treatment of neurological disorders, comprising administering to a mammal in need of such treatment an effective amount of a compound of formula I or of formula II, wherein I            II           R1, R2, R3 and R4 are independently selected from:    hydrogen, (1-3C)perfluoroalkyl, halo, nitro and cyano; R5 is a (1-5C)alkyl group; or a pharmaceutically acceptable salt thereof.           Also provided are compounds and pharmaceutical compositions suitable for the treatment of neurological disorders.
Patent CA-2062383-A1 (CA)
Title: Asymmetrical electro-mechanical device
Inventor: SZABO LESLIE I
IPC: H02K19/18
Filed: 1992-03-06
Abstract: ABSTRACT OF THE INVENTION         This  invention  relates  to  an  asymmetrical, electro-mechanical  device  comprising  a  geometrically-magnetically-asymmetrical stator and a rotor which move with respect to each other.   There is a stator air gap which makes the stator asymmetrical.   The magnetic flux passing from the rotor to the stator is interrupted when the rotor passes by the stator air gap.  The invention is able to achieve improvements over the prior art electro-mechanical devices, particularly in respect of efficiency.
Patent CA-2064289-A1 (CA)
Title: Developing unit for use in electronic printing apparatus
Inventor: FUJIMOTO TETSUYA
IPC: G03G15/09
Filed: 1992-03-27
Abstract: A bracket having a large stiffness is provided.  A magnet roller is rotatably mounted on the bracket and a doctor blade is fixed to the bracket.  A bracket assembly comprising the bracket, the magnet roller and the doctor blade is fixed to a frame of a developing unit.  A gap g between the magnet roller and the doctor blade is maintained at a predetermined value even if the frame is deformed due to an external force, and thus printing at a constant density is ensured.
Patent CA-2067191-A1 (CA)
Title: Gem-diphosphonic acids, a process for the preparation thereof and pharmaceutical compositions containing them
Inventor: TOGNELLA SERGIO
IPC: C07F9/564
Filed: 1990-10-11
Abstract: Diphosphonic acids of formula (I), wherein R1 and R2 are hydrogen or C1-C4 alkyl; (A) is hydrogen, halogen, hydroxy or C1-C12 alkyl; (B) is a bond, a C1-C8 alkylene chain, a cycloalkylalkylene chain, an alkylene chain substituted by cyclohexyl or cyclopentyl groups, or an aralkyl chain, an alkyl chain containing an heteroatom (O, S or N-CH3) or an ureido residue -(CH2)n1-NHCONH -(CH2)n- with n ranging from 1 to 5, R3 is hydrogen, C1-C9 alkyl, C3-C6 cycloalkyl, benzyl, phenyl or p-methoxybenzyl; (C) is C1-C5 alkyl, phenyl or an aralkyl chain; R4 is hydrogen, C1-C4 alkyl or an amino group optionally substituted by alkyl, phenyl, benzyl, p-methoxybenzyl, acyl, amminoacidic or peptide groups; R5 and R6 are 2-haloethyl or together form a 1-aziridinyl residue, are useful as antitumor agent.
Patent CA-2067388-A1 (CA)
Title: Process and device for cleaning exhaust gases
Inventor: GELLERT BERNDT
IPC: B03C3/00
Filed: 1991-08-08
Abstract: ABSTRACT OF THE DISCLOSURE          Process and device for cleaning exhaust gases For efficient generation of electrical power, de-dusted hot gas (10) is led to a gas turbine.   Dust-laden hot gas (1) is generated by a pressurized fluidized-bed firing system or by coal gasification at a temperature of 850°C and a pressure of 16 bar and then cleaned in a de-dusting plant (4, 8, 9).  The dedusting plant comprises a coagulator (4) for mutual deposition of dust particles and 2 downstream cyclones (8, 9) for separating the dust (13, 14).  The coagulator (4) has a bundle of coagulator tubes (5) with attached vibrators (6).  A 1st cyclone (8) is fitted with a cyclone electrode (11) for more effective dust  separation.   Granular bed filters  or devices  for chemical injection can be provided before, in, or after the coagulator  (4)  in order to reduce greenhouse gases and/or corrosive gases.                        (Fig. 2)
Patent CA-2068153-A1 (CA)
Title: Tapped-inductor boost convertor for operating a gas discharge lamp
Inventor: NERONE LOUIS R
IPC: H05B41/282
Filed: 1992-05-07
Abstract: LD 10,096 AN IMPROVED TAPPED-INDUCTOR BOOST CONVERTER     FOR OPERATING A GAS DISCHARGE LAMP                  ABSTRACT An improved tapped-inductor boost converter for operating a gas discharge lamp is disclosed.  The converter includes a pair of input terminals connected to a power source supplying an input voltage, a pair of output terminals for providing an output voltage greater than or equal to the input voltage to the lamp, or other load, a tapped-inductor having first and second windings, an active switch for controlling current flow through the first winding for variably controlling the output voltage, a passive switch for controlling current flow through the second winding, and a first capacitor.  The converter further includes an arrangement for varying the clamping voltage at the active switch in response to variations in the output voltage and also includes a clamping capacitor for transferring energy stored in the leakage inductance of the tapped-inductor to the load for improved efficiency.  In the preferred  embodiment, the first and clamping capacitors are interconnected to form a first filter, and the converter includes a second filter connected to one of the output terminals.  The respective time constants of the first and second filters are predetermined for obtaining relatively high lamp ripple current during the run mode of the lamp, and relatively low lamp ripple current during the start mode of the lamp.
Patent CA-2069112-A1 (CA)
Title: Carboxyalkylcarbonyl aminoacid endopeptidase inhibitors
Inventor: NEUSTADT BERNARD
IPC: C07C233/47
Filed: 1990-11-20
Abstract: Carboxyalkylcarbonyl aminoacid inhibitors of endopeptidases of formula (I), or pharmaceutically acceptable salt thereof, wherein R1 is H, alkyl, arylalkyl, aryl or aryloxyalkyl; R2 is alkyl, alkenyl, alkynyl, alkoxy or alkylthio, wherein the alkyl portion is substituted with 0-3 substituents independently selected from the group consisting of hydroxy, alkoxy, alkoxyalkoxy, alkylthio, aryl, alkoxyalkylthio, arylalkoxy and arylalkylthio; R3 and R4 are independently alkyl or arylalkyl; or R3 and R4 together with the carbon to which they are attached form an optionally substituted 5-, 6- or 7-membered ring wherein said ring comprises 0 to 1 heteroatoms selected from the group consisting of sulfur and oxygen; R5 is H, alkyl, alkoxyalkyl, alkylthioalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, arylalkoxyalkyl or arylalkylthioalkyl; R6 is H, hydroxy, alkoxy, alkyl, arylalkoxy, alkoxyalkyl, alkylthioalkyl, arylalkoxyalkyl, arylalkylthioalkyl, aryl or heteroaryl; R7 is hydroxy, alkoxy, aryloxy, arylalkoxy, amino, alkylamino or dialkylamino; m is 0 or 1; and n is 0, 1, 2 or 3, use of the compounds, alone or in combination with an ACE  inhibitor or an ANF, in the treatment of cardiovascular disorders such as hypertension, congestive heart failure, edema and renal insufficiency, use of the compounds in the treatment of nephrotoxicity and pain conditions, and pharmaceutical compositions containing said compounds are disclosed.
Patent CA-2069292-A1 (CA)
Title: Page weight
Inventor: DRUZIN BRYAN H
IPC: B42D9/00
Filed: 1992-05-22
Abstract: ABSTRACT OF THE DISCLOSURE          A device for holding open the pages of a book comprises a transparent band with two endpieces attached to the distal ends of the band.  The endpieces' weight holds the band downward across the book.  The device acts as a strap that lies over an open book.  The device holds open the pages of a book in a simple fashion.
Patent CA-2069877-A1 (CA)
Title: Ethynylphenyl derivative substituted by pyridazinone and medicament for circulatory disease containing the same as an effective ingredient
Inventor: NAKANISHI MICHIO
IPC: C07D401/12
Filed: 1991-09-30
Abstract: ABSTRACT           There are disclosed an ethynylphenyl derivative substituted by pyridazinone having the formula (I):                        (I) wherein R1 is hydrogen atom, a C1-6 alkyl group, a C1-4 alkoxycarbonyl group, a substituted amino C1-6 alkyl group, a hydroxy C1-4 alkyl group or a phenyl group substituted by an alkyl group, an alkoxyl group, nitro group or a halogen atom, R2 is hydrogen atom, a C1-4 alkoxyl group, or a halogen atom, R3 is a C1-4 alkoxyl group, a C1-6 alkylamino group or a C1-4 alkoxy C1-4 alkoxyl group, R4 is a C1-4 alkyl group or amino group, R5 is hydrogen atom or a C1-4 alkyl group, R6 is hydrogen atom or a C1-4 alkyl group, and R7 is hydrogen atom or a C1-4 alkyl group, which may be a racemic modification or an optical isomer, or a pharmacologically acceptable salt thereof, a medicament for a circulatory disease comprising the above-mentioned ethynylphenyl derivative substituted by pyridazinone or the pharmacologically acceptable salt thereof as an effective ingredient, a medicament for thrombosis comprising the above-mentioned ethynylphenyl derivative substituted by pyridazinone or the pharmacologically acceptable salt thereof as an effective ingredient and a medicament for a kidney disease comprising the above-mentioned ethynylphenyl derivative substituted by pyridazinone or the pharmacologically acceptable salt thereof as an effective ingredient.
Patent CA-2069951-A1 (CA)
Title: Ice-preventive covering
Inventor: PERSSON STURE
IPC: C08L23/02
Filed: 1991-11-15
Abstract: ABSTRACT      An anti-icing surface covering comprising at least one polymeric material which itself is comprised of polyole-fins or polydienes, i.e. hydrocarbon rubber material. For the purpose of obtaining an extraordinary anti-icing covering, the polymeric material is comprised of a polymeric hydrocarbon material or a mixture of polymeric hydrocarbon materials, and each polymeric hydrocarbon material present lacks polar groups but is polymerized and vulcanized with the aid of a vulcanizing agent comprised peroxides, sulphur, sulphur derivate or metal oxides or a combination of sulphur and sulphur derivate.
Patent CA-2070473-A1 (CA)
Inventor: NOHR RONALD S
IPC: D04H1/54
Filed: 1992-06-04
Abstract: Abstract of the Disclosure A melt-extrudable thermoplastic composition is provided which includes a thermoplastic polyolefin and an additive system made up of a first component and a second component, in which (A) the first component is a defined polysiloxane polyether having a molecular weight of from about 350 to about 18,000 and which is present in an amount of from about 0.1 to about 3 percent by weight, based on the amount of thermo-plastic  polyolefin;  and  (B)  the  second  component  is  a hydrophobic fumed silica, in which the weight ratio of the first component to the second component is in the range of from about 20 to about 300.  Such composition yields, upon melt-extrusion,  either nonwoven webs having significantly increased tensile strengths when compared to nonwoven webs prepared from the thermoplastic polyolefin alone, or wettable webs requiring an amount of first component which is signifi-cantly less than that required in the absence of the second component.
Patent CA-2071837-A1 (CA)
Inventor: DEIHL JOSEPH A
IPC: A61K9/00
Filed: 1990-10-16
Abstract: A new use is provided for a particularly specified spray composition. Such spray composition includes at least one of a soluble vitamin, (e.g., Vitamin C) and a soluble mineral, and a non-toxic zinc compound as an essential active agent, as well as, optionally, a soluble flavouring agent, and a non-toxic solvent for the soluble vitamin or for the soluble mineral, or for the optional flavouring agent. Such new use is for introducing at least one of a soluble vitamin and a soluble mineral as well as the non-toxic zinc compound, into an animal through the oral cavity. Methods of preparing such spray compositions for such use are also provided.
Patent CA-2072332-A1 (CA)
Title: Dispersing agents, their use and solids coated therewith
Inventor: QUEDNAU PETER H
IPC: C09K23/52
Filed: 1992-06-25
Abstract: Title: Dispersing agents, their use and solids coated therewith.     ABSTRACT OF THE DISCLOSURE    The present invention relates to dispersing agents or their salts, comprising A    the reaction product of one or more polyisocyanates having an average functionality of from 2.0 to 5, with B    at least a monohydroxyl compound, C    at least a dicarboxylic acid compound and D    a compound containing at least one basic ring nitrogen and an isocyanate-reactive group, in which of the isocyanate groups about 30-70% are reacted with B and C together and about 30-70% with D.
Patent CA-2072624-A1 (CA)
Title: Treatment of obesity with an alpha-2-adrenergic agonist and a growth hormone releasing peptide
Inventor: MUGICA JESUS DEVESA
IPC: A61K38/25
Filed: 1991-09-06
Abstract: Obese patients may be effectively treated by cojointly administering an alpha-2-adrenergic agonist, such as clonidile, and a growth hormone releasing peptide, such as GHRH, to restore or substantially enhance growth hormone release in such patients.
Patent CA-2077363-A1 (CA)
Inventor: CLARK LESLIE E
IPC: B29C44/34
Filed: 1992-09-02
Abstract: A novel method of molding an article includes providing a mould with a vent of a pre-determined size such that, due to the difference in viscosities, gases to be vented from the mold may easily pass through the vent while the material to be molded cannot quickly pass through the vent. In fact, the vent is designed such that the material to be molded which enters the vent, does not exit the end of the vent. In the most preferred embodiment, the vent is in the form of a thin ribbon-like groove so that the material to be molded which does enter the vent forms a thin ribbon of extruded material which need not be removed prior to a finish cover being applied to the molded article.
Patent CA-2080218-A1 (CA)
Title: Overload warning apparatus for internal combustion engines
Inventor: PARNITZKE WILLIAM A
IPC: F02D41/24
Filed: 1992-10-08
Abstract: ABSTRACT     An overload warning apparatus for an internal combustion engine, wherein a switch is mounted adjacent the throttle control plate of the carburetor such that an outwardly extending leg of the plate engages and depresses a switch upon movement of the plate into its wide open position. Once depressed, the switch closes an electrical circuit to energize an indicator to alert an operator of the wide open throttle condition. Alternatively, the switch is located adjacent the governor lever of the engine such that the governor lever depresses the switch upon movement of the lever to a position causing the throttle plate to be moved into its wide open position.
Patent CA-2083181-A1 (CA)
Title: Mobile continuous mining machine
Inventor: SUGDEN DAVID B
IPC: E21D9/10
Filed: 1991-05-17
Abstract: Mining apparatus is disclosed in which a cutting wheel (36) supporting a plurality of roller-cutters (44) rotates about a horizontal axis and is supported on a slewing boom (17) for cutting a tunnel with a flat floor (80) and roof (81) and elliptical walls as it slews across a mining face. The slewing boom is supported on a main beam assembly (14), the front end of which rests on powered crawler tracks (60) and the rear end of which passes through a gripper assembly (24) which may be clamped between the floor (80) and roof (81) of the tunnel, and against which the main beam assembly (14) may be urged forward for engaging the roller-cutters (44) with the mining face. A preload crawler (22) is urged against the roof (81) of the tunnel above the powered crawler tracks (60) to locate the main beam assembly (14) rigidly relative to the tunnel such that the roller-cutters (44) may cut the rock in the mining face with minimal loss of cutting force due to vibration.
Patent CA-2083443-A1 (CA)
Title: Refrigeration apparatus and method of refrigeration
Inventor: MILLER JEREMY P
IPC: F25D16/00
Filed: 1992-11-20
Abstract: ABSTRACT REFRIGERATION APPARATUS AND METHOD OF REFRIGERATION Supplementary cooling for a mechanical refrigera-tion plant using ammonia as a refrigerant is provided by placing a tube in the vapour space of a buffer vessel and introducing liquid nitrogen into the tube. Although ammonia solidifies at -78°C and liquid nitrogen enters the tube at -196°C no ammonia solidifies on the tube even after extended operation. The present invention also provides a method of refrigeration which comprises introducing liquid nitro-gen into the heat exchanger of a refrigeration apparatus in accordance with the invention and condensing refri-gerant therewith. Preferably, the refrigerant is selected from the group consisting of ammonia and fluorocarbon R22.
Patent CA-2083689-A1 (CA)
Title: Heterocyclic compounds
Inventor: TURNBULL MICHAEL D
IPC: A01N43/54
Filed: 1992-03-17
Abstract: Compounds of formula (I) wherein R1 and R2 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, halogen, haloalkyl, alkoxy, alkenoxy, alkoxyalkyl, haloalkoxy, alkylthio, cyano, nitro, amino, NR4R5, hydroxy, acylamino, -CO2R3, -O(CH2)mCO2R3, phenyl, phenoxy, benzyl or benzyloxy, the phenyl group or phenyl moiety of the benzyl group being optionally substituted in the ring; or R1 and R2 when taken together form a 5- or 6-membered ring; m is 1 or 2; R3 and R5 are hydrogen or C1-4 alkyl; R4 is C1-4 alkyl; n is 0 or 1; X  is oxygen or sulphur; Y is hydrogen when n is 0; or Y is oxygen or sulphur when n is 1; are useful as nematicides.