baber/WOPTO huggingface dataset:
Patent CA-2055386-A1 (CA)
Title: Yellow dye mixture for thermal color proofing
Inventor: EVANS STEVEN
IPC: B41M5/39
Filed: 1991-11-13
Abstract: YELLOW DYE MIXTURE FOR                THERMAL COLOR PROOFING                 Abstract of the Disclosure A yellow dye-donor element for thermal dye transfer comprises a support having thereon a dye layer comprising a mixture of yellow dyes dispersed in a polymeric binder, at least one of the yellow dyes having the formula:           I          wherein:      each Rl independently represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms, a cycloalkyl group of from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; an aryl group of from about 6 to about 10 carbon akoms; a hetaryl group of from 5 to 10 atoms; acyl; arylsulfonyl; aminocarbonyl; aminosulfonyl; fluorosulfonyl; halogen; nitro; alkylthio; or arylthio;      or any two adjacent Rl's together represent the atoms necessary to form a 5- or 6-membered fused ring;      n represents an integer from 0-4; R2 represents hydrogen; a substitu ed or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for Rl; cyano; acyl; alkylsulfonyl; arylsulfonyl; or alkoxycarbonyl;      Z represents cyano; alkoxycarbonyl; acyl; nitro; arylsulfonyl or alkylsulfonyl;     Y represents hydrogen; a substituted or unsubstituted alkyl, cycloalkyl, allyl, aryl or hetaryl group as described above for Rl; amino; alkylamino; arylamino; acylamino; or sulfonylamino; and at least one of the other of the dyes having the formula:     I I                     wherein:        R3 represents the same groups as above;     R4 and R5 each independently represents hydrogen, R3; cyano; acyloxy; alkoxy of 1 to about 6 carbon atoms; halogen; or alkoxycarbonyl;     or any two of R3, R4 and R5 together represent the atoms necessary to complete a 5- to 7-membered ring;     R6 represents the same groups as R3; G represents a substituted or unsubstituted alkyl, cycloalkyl or allyl group as described above for R3, NR7R8 or OR9;     R7 and R8 each independently represents hydrogen, acyl or R3, with the proviso that R7 and R8 cannot both be hydrogen at the same time;     or R7 and R8 together represent the atoms necessary to complete a 5- to 7-membered ring;     R9 represents the same groups as R3; X represents C(R10)(Rll), S, O or NR10;     R10 and Rll each independently represents the same groups as R3;     or R10 and Rll together represent the atoms necessary to complete a 5- to 7-membered ring; and J represents the atoms necessary to complete a 5- or 6-membered ring which may be fused to another ring system.
Patent CA-2056075-A1 (CA)
Title: Preparation of ortho-phenylenediamine
Inventor: HERKES FRANK E
IPC: C07C209/68
Filed: 1991-11-22
Abstract: A vapor phase process for the dehydrogenation of 1,2-diaminocyclohexane to form o-phenylenediamine using a catalyst containing a palladium metal and an alkali metal hydroxide.
Patent CA-2056347-A1 (CA)
Inventor: SAKO KAZUYA
IPC: G10L15/06
Filed: 1991-11-27
Abstract: A speech recognizing apparatus compares a speech command from a user with one of registration patterns stored in a storage unit in turn.  Then if the speech command coincides with one of the registration patterns, that controls a predetermined electronic apparatus associated with an operation related to the registration pattern.  If the speech command does not coincide with any one of the registration patterns, that stores into the first storage unit the speech command as a new registration pattern in which the speech command is related to a manipulation of the electronic apparatus by the user immediately after speech command is produced.
Patent CA-2056369-A1 (CA)
Title: System and method for monitoring substances and reactions
Inventor: SCOTT BENTLEY N
IPC: G05D21/02
Filed: 1990-07-09
Abstract: A system and method for monitoring conditions in a fluid me-dium. A stream of the fluid medium is flowed through a fluid con-tainer which is electrically configured as a transmission line segment and which is electrically connected to load a UHF or microwave os-cillator. The oscillator is not isolated from the load, and is operated free-running, at a starting frequency which is chosen to provide a particularly strong shift in permittivity of the fluid medium, as the chemical reaction progresses. Preferably the frequency and insertion loss of the oscillator are monitored, to gauge the progress of the reac-tion.
Patent CA-2058628-A1 (CA)
Title: Electromagnetic antenna collimator
Inventor: ANDERSON DONALD E
IPC: H01Q13/02
Filed: 1991-04-08
Abstract: A dielectric inset (26) mountable within a conical horn antenna (1) for focusing an impinging electromagnetic wavefront as a planar wavefront at an attached waveguide (12). In one construction a homogeneous inset (29) having an ellipsoidal forward surface (32) and conical aft surface is fitted into a double flared conical antenna body (1) including a cylindrical, hybrid mode matching section (8). In various alternative compound constructions, materials of differing dielectric constants and geometrical shapes are arranged to facilitate a site and weight reduction of the inset (29) and focus the incident wavefront relative to the waveguide (12). In other embodiments, still lower density materials, including suspended metallic particulates are used.
Patent CA-2058970-A1 (CA)
Title: Weather-durable polyacetal resin composition
Inventor: KATSUMATA TORU
IPC: C08K5/17
Filed: 1991-05-07
Abstract: ABSTRACT      A weather-resistant polyacetal. resin composition which comprises (A)  100 part by weight of a polyacetal resin, (B)  0.01 to 5 parts by weight of a weathering (light) stabilizer and (C)  0.5 to 60 parts by weight of a graft copolymer comprising (a) an olefin (co)polymer and tb) one or more vinyl (co)polymers which are chemically bonded to each other to form a branched or crosslinked structure.          The surface of a molded article made from the composition is excellent in weathering resistance, so that it undergoes less crack and reduced discoloration.
Patent CA-2059629-A1 (CA)
Title: Simmering and warming stand
Inventor: MACKLING EARL W
IPC: F24C15/12
Filed: 1992-01-20
Abstract: SIMMERING AND WARMING STAND       ABSTRACT            In a gas stove operation, an elevated metal stand is placed above the gas burner in such a manner that food within pots or pans may be kept simmering or warm as desired.
Patent CA-2060745-A1 (CA)
Title: Novel formulations of crop protection agents
Inventor: HEINRICH RUDOLF
IPC: A01P3/00
Filed: 1992-02-05
Abstract: The invention relates to water-emulsifiable granules of crop protection agents composed of the pesticidal active substance in liquid or dissolved form and an at least partially water-soluble shell-forming structural material, to the use of these granules as novel, advantageous formulations of crop protection agents, and to processes for their preparation. It furthermore relates to the general use of polyvinyl alcohols as shell-forming structural materials in the preparation of water-emulsifiable granules which contain organic compounds dissolved in a high-boiling solvent or solvent mixture.
Patent CA-2060807-A1 (CA)
IPC: F04C29/00
Filed: 1992-02-04
Abstract: A swing-link radial compliance mechanism for scroll compressors which minimizes the damage and wear caused by chattering vibrations.  The eccentric crankpin has a planar surface and a wedge is disposed in the bore of the roller, between the planar surface of the crankpin and the arc surface of the roller.  The wedge has a flat surface for transferring chattering vibrations focused on an axial line of force to the planar surface of the crankpin.  Also, an arcuate surface of the wedge engages the arc surface of the roller and allows for rocking movement of the wedge.
Patent CA-2063869-A1 (CA)
Inventor: NELSON MARVIN D
IPC: H02P7/00
Filed: 1992-03-24
Abstract: The tendency of a motor-driven actuator driving against a dynamic (non-frictional) load to return upon reaching the limit switch sufficiently to again close the limit switch and create a persistent oscillation at the limit position can be prevented by planing a positive temperature coefficient thermistor across the limit switch involved. Such loads typically arise in actuators having spring-driven return capability, and can also arise when positioning air dampers and other loads where the actuator force is opposed by a spring or gravity.
Patent CA-2064857-A1 (CA)
Title: Dispositif servant a preparer une dispersion particulaire
Inventor: SINCLAIR COLIN S
IPC: A61M11/00
Filed: 1990-08-02
Abstract: Nébuliseur de liquides, de substances particulaires ou de suspensions liquides ou solides comprenant un récipient (10) à l'intérieur duquel se trouve un réservoir (11), un tube vertical (13) percé sur sa circonférence d'une multitude d'orifices d'évacuation espacées (20) et enfermant un conduit coaxial (14) qui alimente en air plusieurs gicleurs (16) dûment placés d'alignement avec les ouvertures d'évacuation du tube (13), de manière à aspirer du réservoir (11) une colonne annulaire de substance appelée à se disperser par entraînement dans les courants d'air provoqués par les gicleurs (16). Les gouttelettes de grosse dimension peuvent retourner au réservoir (11), tandis que la fraction plus petite est évacuée du récipient par un orifice (20). Le diamètre des orifices d'évacuation et la section de la colonne de substance sont suffisamment grands pour empêcher que la tête du nébuliseur ne s'obstrue.
Patent CA-2070649-A1 (CA)
Title: Recovery of bt endotoxin protein from lysed cell mixtures
Inventor: ENGLISH LEIGH H
IPC: C12P21/04
Filed: 1990-12-04
Abstract: ABSTRACT OF THE DISCLOSURE            Purified endotoxin protein is recovered from aqueous suspensions containing lysed cells and Bacillus thuringiensis crystalline endotoxin protein in a multistep process.   The aqueous suspension, e.g.,  concentrated fermentation culture, is first treated under strongly basic or acidic conditions to solubilize the crystal protein and the solution is then separated from residual solids. Endotoxin protein is precipitated from the separated aqueous solution, by adjusting its pH to the isoelectric point of the protein, and recovered by centrifugation or the like.
Patent CA-2071284-A1 (CA)
Inventor: IINO AKIRA
IPC: C03C25/24
Filed: 1992-06-15
Abstract: In the optical fiber, the concentration of fluorine doped in the core portion is made nonuniform in the radial direction to be greater at the center portion of the core portion and less at the outer circumferential portion of the core portion. As a result,  the distribution of the refractive index of the core portion  and  the  cladding  portion  before  the  process  of transparent glassification becomes a profile which is high at the outer circumferential portion of the core portion and which is low at the center portion.  The reduction of the refractive index at the outer circumferential portion of the core portion due to the dispersion of the GeO2 etc., the oxide included in the core portion,   in   the   cladding   portion   in   the   transparent glassification processed is and as a result, the profile of the refractive index of the core portion becomes one which sticks out in a step form with respect to the cladding portion.
Patent CA-2074560-A1 (CA)
Inventor: SABATIER LOUIS
IPC: B65H3/12
Filed: 1992-07-23
Abstract: La  présente  invention  concerne  un  dispositif  de dépilage d'objets plats en particulier de plis de courrier comportant un chemin d'amenage d'une pile de plis sur chant en butée contre une rive de taquage, un organe de dépilage disposé devant la face libre du premier pli de la pile et constitué d'un organe de translation à une vitesse V1 perpendiculaire à la pile, un dispositif de transfert du pli dépilé à une vitesse V2 et un organe antiprise double intercalé entre l'organe de dépilage et le dispositif de transfert.  Le dispositif de dépilage est caractérisé en ce que l'organe antiprise double est un organe de retenue agissant sur l'autre face du pli, activé dès qu'un pli est pris en charge par le dispositif de transfert et dont l'effort  de  retenue  est  inférieure  à  l'effort  de translation du dispositif de transfert et la vitesse V1 de l'organe de translation est inférieure à la vitesse V2 du dispositif.
Patent CA-2076038-A1 (CA)
Title: Poly.beta.hydroxyalkanoates for use in fibre constructs and films
Inventor: MARCHESSAULT ROBERT H
IPC: D21H19/28
Filed: 1990-02-21
Abstract: A latex comprises a colloidal suspension in water of essentially non-crystalline particles of a polymer or copolymer or .beta.-hydroxyalkanoates; for example .beta.-hydroxybutyrate and .beta.-hydroxyvalerate; the latex may be employed to produce self-supporting films or papers which are biodegradable and also readily recyclable.
Patent CA-2076467-A1 (CA)
Title: Skin whitening preparations
Inventor: STERN MEIR
IPC: A61K8/49
Filed: 1992-08-20
Abstract: ABSTRACT OF THE DISCLOSURE        A cosmetic fade composition for topical application to brighten skin and reduce skin spots.  The composition comprising a physiologically effective quantity of a flavonoid (preferably 0.l wright-% to about 30 weight % in purified form) and a DOPA-quinone reducing agent selected from ascorbic acid or a suitable derivative thereof.  The flavonoid can be produced from a group consisting of Achillea millefolium, Candula, Sage, witch hazel, Mulberries and combinations thereof.   A sun filter can be added to suppress tyrosinase activity of a tocopheryl derivative.       Patents 6 4956B
Patent CA-2079075-A1 (CA)
Title: Battery analyzer
Inventor: MAC FAN
IPC: G01R31/385
Filed: 1992-09-24
Abstract: This newly invented load bank, called BATTERY ANALYZER, is compact and mobile. It is about one third the size of a conventional load bank but it is four to six times more efficient than its counterpart. Its compactness and portability allow it to be employed on-site in very cramped quarters. On average, the analyzer requires one hour to more accurately analyze the condition of one battery while the conventional load bank would require four to six hours. It detects battery cell deficiencies from 2 volts and up and has a drawing power of 25 amps to 250 amps. It is able to draw more amps in less time because of advanced, low electrical resistance and high heat resistant components. This new analyzer is powerful, reliable and accurate and has been designed to take the "guess work" out of battery maintenance.
Patent CA-2080329-A1 (CA)
Inventor: GRIMES JOHN R
IPC: B24D11/00
Filed: 1992-10-09
Abstract: Disks far heavy grinding are made by stamping uncoated backing material to provide a plurality of interconnected disk shapes. The shapes are notched or weakened for separation. The inter-connected shapes are then covered with abrasive embedded in adhesive.
Patent CA-2082156-A1 (CA)
Title: Colonic drug delivery system
Inventor: SINTOV AMNON
IPC: A61K47/36
Filed: 1991-05-02
Abstract: A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer.  According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.
Patent CA-2082369-A1 (CA)
Title: Roll with separate shell and roll core
Inventor: STEINER KARL
IPC: D21F3/08
Filed: 1992-11-06
Abstract: A roll, especially for press rolls in paper machines includes an elastomeric shell separated from a roll core. The roll is characterized by the fact that, in the region of the axial end of the roll core, there is a large reduction in thickness of the roll shell, with the reduced thickness provided substantially at the axial end of the roll shell or in an annular transition region spaced from and near the end of the shell. An advantage of the present invention is that it provides an improved method for securing the roll shell wherein minimal or no proturbances occur beyond the radially outer circumference of the roll shell.
Patent CA-2083125-A1 (CA)
Title: Optical device for measuring ground current of a metal casing
Inventor: DUPRAZ JEAN-PIERRE
IPC: G01R15/24
Filed: 1992-11-17
Abstract: An optical transformer designed to equip a grounded metal-clad installation, wherein the transformer includes a disk which is disposed transversely to the axis of the cladding and which is provided with openings via which the conductors pass, optical fibers being disposed at the periphery of said openings and being connected to an associated optical interface placed outside the cladding.
Patent CA-2092401-A1 (CA)
Title: Quaternary ammonium salts derived from chitosan
Inventor: CHANDLER CHARLES EDWARD
IPC: A61K31/715
Filed: 1991-08-16
Abstract: Quaternary ammonium salts of chitosan possessing hypocholesterolemic activity of formula (II) in which A represents the monomer unit of a chitosan, m is a whole number between 100 and 1,000.  R1 is C1-C4 linear alkyl and Xn- is a physiologically acceptable water soluble polyanion, where n is at least 10 but not greater than about 10,000, and any remaining positive charges are balanced by nonpolymeric anions.
Patent CA-2093048-A1 (CA)
Title: Benzo¢b!thiophen-5-yl derivative and process for producing the same
Inventor: NAKANO JOJI
IPC: C07D333/54
Filed: 1993-03-31
Abstract: Prodn.of an optically active benzo(b)thiophen-5-yl dialkylamino-ethoxy-ethanol deriv., of formula (VIA), (VIB) or their salts, comprising: (a) inoculating a supersatd. soln. of a dioxolo of formula (I) with seed crystals of the optically active dioxolo (IIA) or (IIB), depending on whether (VIA) or (VIB) is the objective, in the presence of a racemisation catalyst, to crystallise optically active (IIA) or (IIB) preferentially; (b) subjecting to alcoholysis or hydrolysis in presence of an acid catalyst; (c) protecting the free OH gp. to give (IIIA) or (IIIB); (d) reducing to diol deriv. (IVA) or (IVB); (e) reacting with a dialkylaminoethyl halide of formula (V); and (f) removal of the OH protecting gp., if desired, is new. In the formulae, R2 = H or a protecting gp.; R4,R5 = 1-6C alkyl; R2a = a protecting gp.; R3 = H or a protecting gp.; and BT = benzo(b)thiophen-5-yl; and X = a removable gp.. Specifically claimed are cpds. (-)-1-(Benzo(b)thiophenyl -5-yl)-2-(2- (N,N-diethylamino) ethoxy)ethanol; and (-) or (+) 2,2-dimethyl-(benzo(b)thiophen-5-yl)- 1,3-dioxolan-4-one.
Patent CA-2093050-A1 (CA)
Title: Hydrodisintegratable material and products formed thereby
Inventor: COHEN BERNARD
IPC: C08L101/00
Filed: 1993-03-31
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention is directed toward a material which, in the presence of water, rapidly disintegrates when subjected to standardized agitation testing. The material includes from about 7.5 to about 85 weight percent of a water dispersible polymer; from about 7.5 to about 85 weight percent of a xerogellant and from about 7.5 to about 20 weight percent of a plasticizing agent. The material may be formed into a thin film. The film is useful in the formation of disposable diapers and feminine care products which may be flushed down the toilet.
Patent CA-2095487-A1 (CA)
Title: 1,2,4-trioxygenated benzene derivatives useful as leukotriene antagonists
Inventor: SOFIA MICHAEL J
IPC: A61K31/085
Filed: 1993-05-04
Abstract: Abstract This invention provides 1,2,4-trioxygenated benzene derivatives which are leukotriene B4 antagonists, formulations of those derivatives, and a method of using those derivatives for the treatment of conditions characterized by an excessive release of leukotrienes.
Patent CA-2095971-A1 (CA)
Title: Anti-counterfeit latent image formation object for bills, credit cards, etc. and method for making the same
Inventor: TANAKA TOSHINORI
IPC: G03G21/04
Filed: 1993-05-11
Abstract: An anti-counterfeit latent image formation object for bills, bank notes, security papers, credit cards, passports, valuable printing matters, and the like comprising a main body, a plurality projections or recesses means formed on the main body in such a manner as to exhibit various kinds of patterns, in which the various kinds of patterns comprise straight image lines forming a pattern, a relief pattern, or a combination of the pattern and the relief pattern; a plurality of straight lines printed on at least one surface of the main body at predetermined spaces, the straight lines being printed in a different color from that of the main body itself.  The patterns consisting of letters, figures, etc. can be visually recognized only when the anti-counterfeit latent image formation object is viewed from an adequate angle.   A method for making the anti-counterfeit latent image formation object is also disclosed.
Patent CA-2098248-A1 (CA)
Title: Electron Acceptor Substituted Carbons for Use as Anodes in Rechargeable Lithium Batteries
Inventor: DAHN JEFFREY R
IPC: H01M4/133
Filed: 1993-06-11
Abstract: A battery using carbonaceous materials with a graphite or disordered graphite structure wherein boron atoms are substituted for carbon atoms in the structure. The electrochemical potential of the carbonaceous materials is shifted as a result of such substitution, and the electrochemical capacity is increased.  Both effects are desirable for anode materials in lithium ion type batteries.
Patent CA-2100840-A1 (CA)
Title: Valve operating mechanism for an internal combustion engine
Inventor: CHOW JOHNNY
IPC: F01L13/00
Filed: 1993-07-19
Abstract: ABSTRACT OF THE DISCLOSURE         A valve operating mechanism for an internal combustion engine is described which includes a valve activating cam follower linkage and an elongate cam having a profile in contact with the valve activating cam follower linkage.  The valve activating cam follower linkage follows the cam profile upon rotation of the cam.  The elongate cam has a first end and a second end.  The profile of the cam varies between the first end and the second end thereby providing multiple rotational contact profiles. Upon relative axial movement of the elongate cam and the valve activating cam follower linkage selections of alternative rotational contact profiles are effected.
Patent CA-2102015-A1 (CA)
Title: Signature feeder for a binding line
Inventor: CRABTREE ROGER L
IPC: B65H39/042
Filed: 1993-10-29
Abstract: IMPROVED SIGNATURE FEEDER FOR A BINDING LINE               ABSTRACT OF THE DISCLOSURE In order to avoid ergonomic problems such as carpel tunnel syndrome while improving productivity, an apparatus for feeding signatures to a patent bound binding line is disclosed. The apparatus includes a pocket adjacent a binding line for receiving signatures to be delivered to the binding line. It also includes a signature feeder for feeding signatures from a source in a generally vertical direction to a signature receiving and transferring mechanism. The signature receiving and transferring mechanism has a signature receiving end positioned in generally vertically spaced relation to the source and a signature transferring end positioned generally adjacent to the pocket. The signature receiving and transferring mechanism has asignature conveyor for conveying signatures in a continuous stream from the signature receiving end to the signature transferring end for delivery into the pocket. There also is provided a signature invertor for inverting the signatures from a first up position to a first down position as the signatures are being conveyed to the pocket. Advantageously, the signature invertor includes a double belt having a twist which is carried on sets of rollers each at an angle to the next in order to invert the signatures during travel from the signature feeder to the pocket.