baber/WOPTO huggingface dataset:
Patent CA-2011107-A1 (CA)
Title: Lactam derivatives
Inventor: BAYS DAVID E
IPC: C07D513/16
Filed: 1990-02-28
Abstract: ABSTRACT LACTAM DERIVATIVES         The invention provides lactam derivatives of the general formula (I) (I)   wherein n represents 2 or 3; Im represents an imidazolyl group of the formula :                       or            wherein one of the groups represented by R1, R2 and R3 is a hydrogen atom or a C1-6alkyl, C3-7cycloalkyl, C3-6alkenyl, phenyl or phenylC1-3alkyl- group, and each of the other two groups, which may be the same of different, represents a hydrogen atom or a C1-6alkyl group: Y represents a group -(CH2)m-, wherein m represents 2, 3 or 4; or Y represents a group -X(CH2)p-, wherein p represents 2 or 3, X represents an oxygen or a sulphur atom or a group NR4, where R4 is a C1-6alkyl group, and X is attached to the benzene ring moiety of the molecule; and physiologically acceptable salts and solvates thereof.   The compounds of formula  (I) are potent and selective antagonists of 5-hydroxytryptamine at 5-HT3 receptors and are  useful,  for  example  in the  treatment  of  psychotic disorders, anxiety and nausea and vomiting.
Patent CA-2013176-A1 (CA)
Title: Poly(arylene sulfide) composites
Inventor: JOHNSON TIMOTHY W
IPC: C08L81/04
Filed: 1990-03-27
Abstract: 32411CA Abstract of the Disclosure Poly(arylene sulfide)/long carbon fiber composites containing small amounts of added crack inhibiting agent such as polyethylene have reduced levels of microcracking. The polyethylene can be introduced as a finely divided powder in a slurry prepreg process or can be compounded with the poly(arylene sulfide) and extruded as a film for stacking with carbon fabric.
Patent CA-2013704-A1 (CA)
Title: Anti-deicing compositions, and method for their manufacture
Inventor: GANCY ALAN B
IPC: C01F5/00
Filed: 1990-04-03
Abstract: ABSTRACT OF THE DISCLOSURE        Novel anti-icer/deicer agents are prepared by reacting active MgO with aqueous acetic acid containing methanol.  Agents can be formulated with densities greater than that of water ice, to ensure rapid melting of ice upon application.  Flash points of the methanol-containing agents are considerably raised above that of straight methanol, due to the high solute content of these agents.      An unexpected feature of these agents is their dramatic increase in viscosity as temperature is lowered into the practical winter ice-melting zone.  This reduces the tendency to spread, with the consequent significantly reduced evaporation of methanol.  Higher density and viscosity also promote penetration of the melting front into the ice.      A key feature of one class of the novel agents is the low evaporation rate of methanol therefrom under certain application conditions, due to the protective skin which automatically forms at the agent/air interface.
Patent CA-2014289-A1 (CA)
IPC: H05B6/56
Filed: 1990-04-10
Abstract: The invention concerns an equipment for drying of a web material (1) or for equalization of its moisture content by means of induction heating. The web is passed between the rolls in two or more pairs of rolls (2,3; 4,5; 6,7). High-frequency energy is passed to one of the rolls (2,4,6) in the pairs of rolls by means of a capacitive energy transfer member. One of the electrodes in this capacitive energy transfer member consists of the mantle of the roll (2,4,6) concerned. As the other electrode, a trough unit (8,9,10) which surrounds a part of the roll mantle is arranged. Alternatively, the trough unit may be substituted for by a rod electrode, which may be placed outside or inside the roll.
Patent CA-2017581-A1 (CA)
Title: Footwear and insole pad thereof
Inventor: SUGINAKA JUNKO
IPC: A43B7/24
Filed: 1990-05-25
Abstract: ABSTRACT OF THE DISCLOSURE   Footwear and an insole pad employed inside thereof, in which an arch extrusion being raised toward the outside thereof is provided at an outer periphery corresponding to an outside arch on the upper surface of an insole of the footwear or on the upper surface of the insole pad, so that the shift of weight rested on a foot upon walking toward the outside upon walking is supported by the arch extrusion and the weight rested on the foot is gathered to the center of a body, which improves a walking posture, reduces the fatigue of the foot and prevents the occurrence of bowlegs.
Patent CA-2017776-A1 (CA)
IPC: G01L1/22
Filed: 1990-05-29
Abstract: The loading cell (1) consists of a slightly flattened flexion bar (4) combined with a wide flat parallel secondary sheet (13) connecting a mobile upright (6) to a fixed upright (9). A plate (2) is firmly attached to the mobile upright (6) while a base plate (3) is firmly attached to the fixed upright (9). Strain gauges are distributed over the surface of the flexion bar (4) and are connected in a Wheatstone bridge for the measurement of the load. 
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Patent CA-2017953-A1 (CA)
Title: High density single pass heat exchanger for drying fragmented moisture bearing products
Inventor: RONNING RICHARD L
IPC: F26B11/04
Filed: 1990-05-31
Abstract: ABSTRACT OF THE DISCLOSURE   A high density, single pass heat exchanger is disclosed especially useful for drying fragmented moisture-bearing fibrous products such as bakery wastes, alfalfa, peat moss and wood products. A burner connected to the drum causes heated gases to be directed throughout the length of the heat exchanger for evaporation of water from the fragmented products while they are in the drum. A series of internal, circumferentially spaced, inwardly directed, product-conveying, showering conductive and convective heat transfer flights extend toward the center of the drum. The diameter of the drum (R) divided by the effective diameter (r) of the flight-free central zone is equal to an aspect ratio (R/r) of from about 2.4 to about 1.4. A sufficient number of the flights are provided and their dimensions are such that the total area of the heat conductive and convective flight surfaces is at least equal to the total heat transfer surfaces presented by the product to be dried when conveyed through the heat exchanger at the maximum rated throughput capacity of the latter.
Patent CA-2018235-A1 (CA)
Title: Infrared absorbing indene-bridged-polymethine dyes for dye-donor element used in laser-induced thermal dye transfer
Inventor: DEBOER CHARLES D
IPC: B41M5/392
Filed: 1990-06-05
Abstract: -i-INFRARED ABSORBING INDENE-BRIDGED-POLYMETHINE       DYES FOR DYE-DONOR ELEMENT USED IN LASER-INDUCED THERMAL DYE TRANSFER                Abstract A dye-donor element for laser-induced thermal dye transfer comprising a support having thereon a dye layer and an infrared-absorbing material which is different from the dye in the dye layer, and wherein the infrared-absorbing material is an indene-bridged-polymethine dye.  In a preferred embodiment, the indene-bridged-polymethine dye has the following formula:                  wherein: R represents a substituted or unsubstituted alkyl or cycloalkyl group having from 1 to about 6 carbon atoms or an aryl or hetaryl group having from about 5 to about 10 atoms; R1, R2, R3, R4 and R5 each independently represents hydrogen, halogen, cyano, alkoxy, aryloxy, acyloxy, aryloxycarbonyl, alkoxycarbonyl, sulfonyl, carbamoyl, acyl, acylamido, alkylamino, arylamino or a substituted or unsubstituted alkyl, aryl or hetaryl group; or any two of said R, R1, R2  R3  R4 and R5 groups may be joined together to form a 5- to 7-membered -ii-substituted or unsubstituted carbocyclic or heterocyclic ring, A represents -COR, -CO2R, -CONHR, -CONR2, -SO2R, -SO2NHR,  SO2NR2 or -CN; B represents A or hydrogen, -R, -SR, -OR or -NR; or A or B may be joined together to form a 5- to 7-membered substituted or unsubstituted carbocyclic or heterocyclic ring; Y represents a dialkyl-substituted carbon atom, a vinylene group, an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, NR, or a direct bond to the carbon at the R2 position; Z represents hydrogen or the atoms necessary to complete a 5- to 7-membexed substituted or unsubstituted carbocyclic or heterocyclic ring; and n is 0 to 3.
Patent CA-2020278-A1 (CA)
Title: Process for generaating chloric acid and chlorine dioxide
Inventor: BERRY RICHARD M
IPC: B01D61/44
Filed: 1990-03-14
Abstract: ABSTRACT          A  three  compartment  water  splitting  system comprosed of  repeating  cationic,   anionic  and bipolar membranes is used to remove alkali metal cations from an alkali  metal chlorate  solution  thereby  producing  an alkali  metal  hydroxide  and chloric  acid.     When  the chloric acid reaches a certain concentration,  chlorine dioxide is formed.  Alternatively the chloric acid can be used for the generation of chlorine dioxide.     #21-03/09/90
Patent CA-2022954-A1 (CA)
Inventor: JONES SCOTT
IPC: H04Q11/04
Filed: 1990-08-09
Abstract: The present invention provides a distributed architecture that includes multiple voice processing units.  A voice processing unit is designated as a home voice processing unit for a subscriber's messages.  An incoming call or access by a subscriber from a central office is preferentially switched to the home VPU by a digital switching system under the control of a master control unit.  If the master control unit determines that all lines to the home voice processing unit are busy or the voice processing unit is otherwise unavailable, the master control unit causes the digital switching system to switch the call to another or remote voice processing unit.  The remote voice processing unit then handles the call by either locally storing a message or retrieving a message from the home voice processing unit storage over an internal message bus.  If a message is stored remotely and the home voice processing unit is processing the subscriber request, the home voice processing unit can access the remote message over an internal message bus or the master control unit can switch the call routing through the digital switching system to the remote voice processing unit for processing of the remote message and return the digital switching system routing to the home voice processing unit when finished with the remote message.  Each voice processing unit stores both remote and home messages locally on local disc storage units.  The master control unit stores subscriber related information such as the home voice processing unit for each subscriber and the location of each message for that subscriber.          Communication between the master control unit and the voice processing units is over an internal network.  A hot standby master control unit is provided to take control of the system in the event that the primary master control unit fails.
Patent CA-2023035-A1 (CA)
Title: Dihalovinylbenzyl esters, their preparation, intermediates for their preparation and their use for controlling pests
Inventor: WOLF BERND
IPC: C07C255/39
Filed: 1990-08-09
Abstract: O.Z. 0050/41042 ABSTRACT OF THE DISCLOSURE: Dihalovinylbenzyl esters of the general formula I                                          ( I ), where R1 is hydrogen, cyano, C1-C4-alkyl, C2-C4-alkenyl or C2-C4-alkynyl, X1 is chlorine, bromine or fluorine, X2 is chlorine, bromine or fluorine, and A is the carboxylate radical of a pyrethroid-typical acid component, processes and starting materials for their manufacture, and their use for combating pests.
Patent CA-2024586-A1 (CA)
Title: Bogie-gripping transfer device
Inventor: SINKKONEN MATTI
IPC: B64F1/10
Filed: 1990-09-04
Abstract: (57) Abstract The object of the invention is a transfer device (2) for grip-ping bogie wheels (6), which is intended to move an aircraft (1) or other wheeled device on a base, which transfer device (2) includes a frame section (8, 18) and supported on this friction rollers (14, 15) that grip the bogie wheel (6) and motors (13) to rotate them, at least three friction rollers for each one, and pressure devices (20, 23) to press the friction rollers (14, 15) against the wheel (6), and which transfer device (2) inclu-des a power device and transmission devices to provide the motors  (13)  with power,  and devices to place the friction rollers (14) around the wheels and to remove them. The intention of the invention is to create a wheel-gripping transfer device In accordance with the invention the placing devices of the friction rollers (14) of the second wheels of the in-line wheels (6) on both sides are attached to horizontal slides placed on one or more frame beams (8), so that the friction rollers (14, (15)  are able to settle in a position corresponding to the distance between the axles of the set of bogie wheels (3).
Patent CA-2025147-A1 (CA)
Title: Preparation of sulphonated polyketones
Inventor: BROWN STEPHEN L
IPC: C08G61/12
Filed: 1990-09-12
Abstract: Case 7303(2) ABSTRACT OF THE DISCLOSURE            PREPARATION OF SULPHONATED POLYKETONES      Sulphonated polyketones are prepared by reacting a linear alternating copolymer of carbon monoxide and one or more olefins (polyketone) with a sulphonating agent (eg chlorosulphoric acid) in a solvent (eg dichloromethane) at a temperature in the range -20 to +40°C.  A molar excess of sulphonating agent is preferably used. The sulphonated polyketone produced contains one or more types of unit of formula -[COC(R1)2C(R1)2]- wherein the R1 groups are independently H, C1 to C10 alkyl or SO3H with the proviso that at least one R1 group is SO3H.
Patent CA-2025705-A1 (CA)
Inventor: AGARWAL KEDAR B
IPC: C10B53/00
Filed: 1990-09-19
Abstract: A process and apparatus for the continuous pyrolitic decomposition of a feed material having an organic and an inorganic component and recovery of the inorganic component, carbon-free, for reuse in essentially the same material as from which it originally emanated.  The apparatus includes a reactor assembly for receiving and pyrolitically decomposing the organic component of the feed material.  The reactor assembly includes a screw-type conveyer assembly wherein the flights which convey the residue through a housing have openings therein to allow gaseous decomposition products to pass therethrough to preclude pressurization of the housing by the decomposition products.  The inorganic residue has carbon thereon and is cooled to an oxidation temperature in a non-oxidizing manner in a first cooling assembly.  Without admitting ambient air into the cooling assembly the cooled residue is transferred to an oxidation assembly where the carbon is oxidized to form gaseous carbon dioxide and is liberated from the inorganic residue.  The inorganic residue is then cooled in a second cooling assembly and thereafter collected for reuse.  The decomposition products are further processed in a condenser assembly wherein all condensable material is removed and the gaseous products are collected for reuse.  The gaseous products are preferably used to fire the reactor assembly.
Patent CA-2025917-A1 (CA)
Title: Bush fire protection of buildings
Inventor: HAYES GARY D
IPC: A62C35/62
Filed: 1990-09-21
Abstract: ABSTRACT   A fire control system for buildings, wherein the building is provided with a sprinkler system around the perimeter of the building. The sprinkler system sprays water inwardly against the walls, windows and doors of the building.
Patent CA-2030752-A1 (CA)
Title: Shaped articles and photographic element supports made from orientable polymers and polymer microbeads
Inventor: MAIER LARRY K
IPC: C08J5/18
Filed: 1990-11-23
Abstract: Disclosed are shaped articles and photographic elements having reflective or diffusely transmissive supports shaped from a continuous oriented polymer phase having dispersed therein microbeads of a polymer which are at least partially bordered by void space, the microbeads being present in an amount of about 5-50% by weight based on the weight of the oriented polymer, and the void space occupying about 2-60% by volume of the support. Preferably, the microbeads are cross-linked to an extent they will be resilient and elastic at the orientation temperature, and are coated with a slip agent.  Such shaped articles and supports have excellent physical properties.
Patent CA-2031084-A1 (CA)
Title: Contoured rotor blade shroud segment
Inventor: NICHOLS HERBERT E
IPC: F01D5/22
Filed: 1990-11-29
Abstract: CONTOURED ROTOR BLADE SHROUD SEGMENT          Abstract of the Disclosure A shroud segment adapted to mount to fixed support structure  of the casing of the turbine or compressor of a gas turbine engine has an outer face and an inner face formed with end portions having a first radius of curvature which are located on either side of a center portion having a second radius of curvature.   A  temperature  differential  between  the inner and outer faces of the shroud segment during operation of the gas turbine engine causes the shroud segment to chord or straighten out circumferentially so that a combined,  substantially uniform radius of curvature is formed on the inner face which closely conforms to the path of motion of the rotor blades of the gas turbine engine.
Patent CA-2031721-A1 (CA)
Title: Safirex
Inventor: TAYLOR MAURICE
IPC: A62C35/58
Filed: 1990-12-07
Abstract: Abstract An apparatus to extinguish a fire that occurs on a cooking stove.         Many fires are caused by an unattented pot or pan left on a stove.Also by failing to turn the element off IN many cases not only damage to the kitchen but frequently the entire house is set ablaze causing many injuries,and a few fatalities. My invention activates the fire extinguisher automatically;extinguishing the fire and turning off the power to the stove.
Patent CA-2031901-A1 (CA)
Title: Magnetic element with magnesium coil for filter
Inventor: HEBERT ALFRED M
IPC: B01D35/06
Filed: 1990-12-10
Abstract: The specification relates to machine and engine lubrication oil filters, and spin on type filters generally used on heavy duty equipment hydraulic systems, transmissions and the like. There is disclosed an element for spin-on filters for removing metallic fines from a medium being filtered and for neutralizing sulphuric acids therein, comprising a base element having a lower recess therein for a magnet and an upper recess larger than said lower recess. Extender elements are stackable on said base element, and an upper container within which are placed magnets spaced apart by flux spacer elements is nesting in the uppermost extender element, and a magnesium coil is on the exterior of said container.
Patent CA-2034384-A1 (CA)
Title: Disubstituted aromatic dianhydrides and polyimides prepared therefrom
Inventor: JASNE STANLEY J
IPC: G03F7/075
Filed: 1991-01-17
Abstract: K-17926/17927/+/CGC 1462 DISUBSTITUTED AROMATIC DIANHYDRIDES AND       POLYIMIDES PREPARED THEREFROM       Abstract of the Disclosure Aromatic dianhydrides being substituted in the positions ortho to the bridging moiety, said substituent groups including halogen, alkyl, hydroxy, nitro, cyano, ester, alkoxy, perfluoroalkyl, mercapto and thioester groups, said dianhydrides providing certain beneficial properties to polyimides prepared therefrom.
Patent CA-2034940-A1 (CA)
Title: Pneumatic tools
Inventor: ALLAN DAVID T
IPC: B25D17/12
Filed: 1991-01-25
Abstract: ABSTRACT           "Improvements in or relating to Pneumatic Tools"           A pneumatic reciprocating tool comprises a cylinder body (12) and an air-operated piston (110) which reciprocates within said cylinder body during sustained use of said tool, air being exhausted from an exhaust port (24) in said cylinder body during such use.  The pneumatic tool includes a silencer arrangement (126) substantially totally surrounding said cylinder body and formed of a length of metallic structural hollow section.  Mounting means (128), (130) for mounting said silencer arrangement on said pneumatic tool are also provided and optionally include a vibration reducing arrangement.
Patent CA-2035634-A1 (CA)
Title: Skid rail using fe/cr dispersion strengthened alloys
Inventor: TSUKUTA KENJI
IPC: C21D1/00
Filed: 1991-02-04
Abstract: ABSTRACT OF DISCLOSURE     A skid rail for use in a furnace operating at high temperature is prepared by using an oxide-dispersion strengthened type heat resistant alloy, which consists essentially of about 10-40% Cr and the balance of Fe and contains about 0.1-2% of fine particles of high melting point metal oxide such as Y2O3 dispersed in the ferrite matrix.   The alloy optinally further contains up to about 5% Al, or up to about 5% Al and up to about 5% Ti.       The skid rail exhibits excellent properties of anti-hot deformation, oxidation resistance, abrasion resistance, sulfidation resistance and thermal shock resistance.
Patent CA-2036401-A1 (CA)
Inventor: ANDERSEN HAROLD W
IPC: A61L2/26
Filed: 1991-02-15
Abstract: A method for maintaining hydration of the contents of the water-impermeable packages containing items to be sterilized includes placing a moisture-releasing humidifying device into the package with the items to be sterilized, hermetically sealing the package, and releasing moisture from the moisture-releasing humidifying device into the package before the package is exposed to the gaseous sterilant. The moisture-releasing humidifying device includes an absorbent material and a cover about the absorbent material. The cover is made at least partially of a hydrophobic and vapor-permeable material such that moisture absorbed by the absorbent material passes through the vapor-permeable material to effect humidification within the package.
Patent CA-2036951-A1 (CA)
Title: Using a conventional flat drawing or a flat mosaic style paste-up of a design to produce open faced casting molds or vaccuum forming molds
Inventor: NEWTON JOHN
IPC: B29C33/42
Filed: 1991-02-22
Abstract: The invention relates to a method of using a flat two dimension drawing or a flat two dimensional mosaic style design and etching the drawing or design into the surface of a photoengraving plate, to a predetermined depth, in a positive or negative aspect; using the photoengraved plate and placing a centrally opened frame onto the surface of the photoengraved plate and casting into the area of the frame a pourable, non-thixotropic, silicone based compound, to produce a flexible membrane; using the membrane in conjunction with cast epoxy, polyester or acrylic based compounds to produce open faced casting molds or vacuum forming molds that reproduce the form and details of the drawing or design in a three dimensional form, in a positive or negative aspect, to be used in the production of massive castings or thin vacuum formed replicas of the drawing or design.
Patent CA-2037082-A1 (CA)
Title: Stable dispersions of polyureas and/or polyhydrazodicarbonamides in relatively high molecular weight compounds containing at least one hydroxyl group, a process for production andtheir use for the production of polyurethane plastics
Inventor: GANSEN PETER
IPC: A43B3/16
Filed: 1991-02-26
Abstract: Mo-3539 LeA 27,530 STABLE DISPERSIONS OF POLYUREAS AND/OR POLYHYDRAZODICARBONAMIDES IN RELATIVELY HIGH MOLECULAR WEIGHT COMPOUNDS CONTAINING AT LEAST ONE HYDROXYL GROUP, A PROCESS FOR      THEIR PRODUCTION AND THEIR USE FOR THE PRODUCTION OF  POLYURETHANE PLASTICS               ABSTRACT OF THE DISCLOSURE    This invention relates to a stable dispersion of polyurea and/or polyhydrazodicarbonamide in a relatively high molecular weight compound having a molecular weight of 200 to 16,000, and containing at least one hydroxyl group which is a reaction product of polyisocyanate with a polyamine containing  primary, and/or secondary amino groups and/or a hydrazine and/or a hydrazide in a relatively high molecular weight compound containing at least one hydroxyl group,the improvement comprising the stable dispersion of low viscosity wherein the polyisocyanate is characterized in that it is a mixture of diphenyl methane diisocyanate and a polyphenyl polymethylene polyisocyanate consisting of 50 to 95% by weight 4,4'-diphenyl methane diisocyanate 5 to 60% by weight 2,4'-diphenyl methane diisocyanate 0 to 4% by weight 2,2'-diphenyl methane diisocyanate, and 0 to 30% by weight of a polyphenyl polymethylene polyisocyanate.