baber/WOPTO huggingface dataset:
Patent CA-2051738-A1 (CA)
Inventor: KALLANDER STEFAN E P
IPC: H04B7/26
Filed: 1991-09-18
Abstract: A method of reducing in a digital time multiplex mobile telephony system the risk of poor reception as a result of the occurrence of points of low signal strength, so-called zero points. Transmission from fixed stations is effected with a polarization direction which is changed stepwise between different parts of the transmitted information. This causes the fading patterns around receiving stations to change in time, and also causes any zero points to be moved in the geography, therewith making it improbable that more than a small part of an information frame will be lost. In the case of a GSM-type system, the polarization direction is changed for each. new TDMA-frame.
Patent CA-2051888-A1 (CA)
Inventor: MCLAUGHLIN PAUL F
IPC: G06F13/00
Filed: 1991-09-19
Abstract: A primary slave IOP, upon detecting an error, verifies the availability of a secondary slave IOP, and then sets an output control signal to indicate backup is requested.  The primary slave IOP then takes itself out of being the primary.  A secondary slave IOP, sensing that the output control signal from the other IOP has been set, assumes the role of the primary slave IOP.  A master controller, detecting an error with the primary slave IOP, interrogates the primary and secondary slave IOPs for a status input, and then arbitrates between the first and second IOP to determine the IOP that is to take on the primary role.  Finally the master controller awards the more operational IOP the role of the primary slave IOP, thereby completing the failover operation.     A primary slave IOP which fails sets the output control signal as part of its failure handling and watchdog timeout function.  The output control signal is also set to indicate backup for an unpowered IOP.
Patent CA-2052265-A1 (CA)
Title: Device for extruded string forming around the periphery of a glass sheet
Inventor: SCHOLL HEINZ
IPC: B29C48/12
Filed: 1991-09-30
Abstract: An extrusion nozzle 5, 55 with an outlet 6 calibrated in order to extrude a profile 3 directly into the peripheral zone of a window glazing 2 is equipped with a plate 22, 60 downstream of the outlet 6 which partially closes it off. The plate 22, 60 is alternatively a slide 22 actuated by a ram 16 or a disc 60 set into rotational movement. A nozzle of the preceding type enables profiles of various cross-sections to be produced. 
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Patent CA-2053358-A1 (CA)
Title: Supported silver catalyst, and processes for making and using same
Inventor: MINAHAN DAVID M
IPC: B01J23/68
Filed: 1991-10-11
Abstract: A SUPPORTED SILVER CATALYST, AND PROCESSES FOR MAKING AND USING SAME          Abstract of the Invention A process for preparing a supported silver catalyst for the production of alkylene oxide by the vapor phase oxidation of alkylene with an exygen-containing gas is disclosed and comprises  contacting  a  silver-containing  support with  a solution comprising a metal-containing promoter other than alkali metals or alkaline earth metals.   The solution is chosen so that the metal-containing promoter has an increased affinity to the silver-containing carrier relative to its affinity to the carrier without silver.  Alkene epoxidation catalysts and alkene epoxidation processes are also disclosed.
Patent CA-2054378-A1 (CA)
Title: Conveyor belt module drive surfaces for mating with sprocket drive surfaces in the hinging region
Inventor: HORTON PAUL L
IPC: B65G17/08
Filed: 1991-10-28
Abstract: This invention solves problems encountered in driving conveyor belts where mating belt drive engagement surfaces, sprocket drive surfaces, pivot rods and pivot rod surfaces all interact to cause wear and unreliablity in belt operation. Pivot rods are removably confined to prevent linear movement out of the belt due to conditions encountered in operation with corresponding interference or failure. Driving engagement is improved for variously shaped modular belt.links with drive surfaces extending from cylindrical structure about the pivot rod journalling aperture to form drive surfaces for mating with sprocket teeth. Dynamically moving sprocket drive surfaces interact between substantially radially disposed parallel drive planes on both the sprocket and the belt modules, thereby to avoid radially directed forces that drive the belt away from the drive sprocket to cause wear and unreliability. Trapezoidal shaped mating drive teeth upon the modules extend from a generally cylindrical body about the pivot rod. Sprocket drive teeth engage respective ones of such trapezoidal drive teeth on different end to end intercoupled modular links so that the belt may be driven in opposite directions. At the belt edge, one of two different pivot rod retention cap embodiments swivels elastically away from the normal pivot rod axis position retaining a pivot rod in place to permit pivot rods to be inserted or removed.
Patent CA-2054760-A1 (CA)
Title: Bottom blade for grass cutting unit
Inventor: ALDRED EDWARD J
IPC: A01D34/42
Filed: 1990-05-04
Abstract: ABSTRACT             A wedge-shaped blade/block assembly for a reel-type grass cutter has a tongue (56) in the blade (50) engaging a groove (68) in the bottom block.  Abutments (58,60,70,72) above and below the tongue (56) resist vertical forces on the cutting edge (54).  A series of generally horizontal bolts acting through the tongue (56) and groove (68) hold the blade firmly in engagement with the bottom block yet permit ready replacement of the blade when worn.
Patent CA-2057098-A1 (CA)
Title: Fatigue-resistant wire belt coat composition
Inventor: SCHUR KENNETH M
IPC: C08L21/00
Filed: 1991-12-05
Abstract: ABSTRACT           A wire belt coat composition for tires in-cludes conventional antioxidant and antiozonant additive compounds such as a dihydro-trimethylquinoline and an alkyl-aryl  para-phenylenediamine,  respectively.    A hindered bisphenol of the type heretofore traditional-ly utilized as the sole antioxidant component in rubber polymer compositions, is added to the wire belt coat composition recipe already containing the aforementioned conventional antioxidant and antiozonant compounds, and unexpectedly improves fatigue resistance in the wire belt coat composition.  Adhesion properties of the wire belt coat composition to the brass-plated steel wire cords is retained.
Patent CA-2057971-A1 (CA)
Title: Apparatus for making reinforced fabric from a ribbon of uncured elastomeric material
Inventor: ELIA GERARDO P
IPC: B29D30/46
Filed: 1991-12-18
Abstract: A shuttle head which can be translated along a longitudinal axis between an assembly table and a lead-in table, wherein the shuttle head has a vacuum pick-up for picking up a ribbon of uncured elastomeric material. The shuttle head includes a pick-up plate having a plurality of apertures communicating with the source of vacuum. A cutting knife is provided on the edge of the assembly table for cutting the strip of ribbon, and the assembly table and cutting knife can be adjusted angularly with respect to the lead-in table. The pick-up plate has an inverted v-shaped edge at the leading end of the shuttle head immediate-ly adjacent the cutting knife, such as to allow a variety of angular displacements of the assembly table relative to the lead-in table without having to change the pick-up plate.
Patent CA-2058109-A1 (CA)
Inventor: DELMEE PETRUS H M
IPC: C25D3/18
Filed: 1991-12-19
Abstract: Described is a method for forming a sieve material (3) in which a sieve skeleton (2) is thickened in an electrolysis bath with metal; in the bath as used at least one chemical compound is present having properties of both a first and second class brightener in such concentration and added with such a rate in view of the Ah load that the internal stress in the finished sieve material (3) is reduced in comparison to a sieve material (3) produced in a bath comprising a conventional compound under conventional conditions. The invention also relates to a sieve material (3) formed with the method described. <IMAGE>
Patent CA-2058880-A1 (CA)
Inventor: FRIGIERE RENE
IPC: F23Q2/16
Filed: 1992-01-07
Abstract: Ce briquet est du type dans lequel les moyens de commande de l'ouverture de la soupape sont constitués par un levier basculant articulé sur un axe fixe orthogonal à l'axe du brûleur soupape et dans lequel les moyens de neutralisation du mécanisme d'allumage sont constitués par un poussoir, disposé sous l'extrémité d'actionnement du levier basculant, mobile parallèlement à l'axe longitudinal de ce levier basculant, entre une position active dans laquelle il est en saillie par rapport à l'extrémité d'actionnement du levier et une position effacée dans laquelle il est repoussé en direction de l'autre extrémité du levier basculant, une saillie d'actionnement étant portée par la branche transversale du poussoir. La saillie postérieure d'actionnement du poussoir est portée par un pilier solidaire de la branche transversale du poussoir et ce pilier est rendu suffisamment flexible pour que, compte tenu de la force de réaction des moyens s'opposant au déplacement du poussoir de sa position active à sa position effacée, le déplacement de la saillie postérieure dans le sens de son enfoncement ne soitcommuniqué aux branches latérales, transversales et centrale du poussoir que si la force exercée sur la saillie comporte une composante verticale, orientée de hauten bas et propre a rigidifier le pilier, et qu'il fléchisse en l'absence d'une telle composante.
Patent CA-2063228-A1 (CA)
Title: Composite or asymmetric fluorine-containing polyimide membrane, a process for manufacturing the same and a method for the separating and concentration of gas using the same
Inventor: MATSUMOTO KENJI
IPC: C08L79/08
Filed: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE    A composite or asymmetric membrane for separating and concentrating a particular component  from a mixture of gases.  The asymmetric membrane is of a fluorine-containing aromatic polyimide resin of the 6FDA type.  The composite membrane has a thin film of an elastomeric polymer formed on a supporting film of a fluorine-containing aromatic Polyi-mide resin of the 6FDA type.
Patent CA-2063716-A1 (CA)
Inventor: ANTHONY PATRICK L
IPC: B27N3/04
Filed: 1990-07-23
Abstract: Sheeting in the form of fibre board comprising cellulose fibres and a thermosetting resin in an amount sufficient to bond the cellulose fibres together when compressed the sheeting having a density of 1100 kg/m3 or greater. The method of manufacturing the sheeting comprises the steps of combining the cellulose fibres and thermosetting resin together and forming a mat or web, and thereafter heating and compressing the mat or web to a density of at least 1100 kg/m3.
Patent CA-2063937-A1 (CA)
Title: Aqueous polyurethane-urea dispersions based on bis-(4-isocyanatocyclohexyl)-methane enriched in the trans,trans isomer and coatings or films prepared therefrom
Inventor: SENEKER STEPHEN D
IPC: C09D175/04
Filed: 1992-03-25
Abstract: Mo3593 AQUEOUS POLYURETHANE-UREA DISPERSIONS BASED ON BIS-(4-ISOCYANATOCYCLOHEXYL)-METHANE ENRICHED IN THE TRANS,TRANS      ISOMER AND COATINGS OR FILMS PREPARED THEREFROM                  ABSTRACT OF THE DISCLOSURE         The present invention is directed to aqueous polyurethane-urea dispersions wherein the polyurethane-ureas are based on the reaction product of a)   an isocyanate component comprising bis-(4-isocyanatocyclo-hexyl)-methane having an average trans,trans isomer content of at least 35% by weight, based on the weight of bis-(4-isocyanatocyclohexyl)-methane with b)   an isocyanate-reactive component.          The present invention is also directed to the films or coatings prepared from these aqueous polyurethane-urea dispersions.     Mo3593
Patent CA-2064598-A1 (CA)
Title: Twist correction device for pipe conveyor
Inventor: SUMINO SHINICHI
IPC: B65G15/08
Filed: 1992-04-01
Abstract: A twist correction device for a pipe conveyor having an endless transfer belt whose at least part is rounded in a pipe shape enclosing therein a material to be transferred.  The device includes a plurality of correction rollers obliquely inclined relative to the transfer direction of the transfer belt and in pressure contact with the outer circumferential surface of the pipe-shaped transfer belt to apply correcting force to the belt for correcting twisting of the belt.          The device further includes two roller support frames supporting the plurality of correction rollers and pivotally connected to a stationary support frame rotatably about axes perpendicular to the transfer direction of the transfer belt.  The device includes an angle adjusting device provided on the stationary support frame for adjusting rotated angles of the roller support frames about the axes, thereby correcting twisting of the pipe-shaped transfer belt.  The angle adjusting device is manually driven or automatically power driven.
Patent CA-2065180-A1 (CA)
Title: A drying section
Inventor: BEISSWANGER RUDOLF
IPC: F26B13/20
Filed: 1992-04-06
Abstract: Abstract of the Disclosure The invention relates to a web guiding structure in a drying section downstream from a coating device and having suspension and infrared dryers and with a directly preceding coating device for paper or board. The structure is characterized by a rigid beam-like chest-like web bend device with blowing elements adapted to produce a pressurized gas cushion for the web for contact-free bending of the web in its direction through an angle between 50° and 120° so that with an increase in its distance from the bending device the web also moves away from the coating device, following the bend device  a heating device or a suspension device having beam-like, chest-like blowing air guide devices in each case for producing a course of the web undulating in the direction of movement of the web (web valleys and crests extending in the transverse direction) on the upper and lower sides of the web and further dryers with radiation and/or a hot gas action and alternately arranged drying devices in the form of infrared dryers and suspension dryers alternating at least twice.
Patent CA-2065927-A1 (CA)
Inventor: MARTENS RUDOLF J
IPC: C11D17/06
Filed: 1992-04-13
Abstract: Concentrated detergent powder compositions having a bulk density of above 600 g/l, preferably at least 610 g/l, more preferably from 650 g/l to 1200 g/l, and comprising a surfactant, a detergency builder, enzymes, a peroxygen compound bleach, and a manganese complex as effective bleach catalyst are disclosed.            Specifically preferred manganese complexes are: 1) [MnIV2(µ-O)3(Me-TACN)2](PF6)2 and 2) [MnIV2(µ-O)3(MeMe-TACN)2](PF6)2 Use of these catalysts can make the detergent powder more compact, i.e. reduce the pack volume, without loss of performance or even with a much better bleaching and washing powder.
Patent CA-2066527-A1 (CA)
Inventor: BURKE TERRENCE R
IPC: A01N25/06
Filed: 1992-04-21
Abstract: A water-based or solvent-based, or combinations thereof, aerosol insecticide is provided. Dimethylether (DME) is used both as a solvent and a propellant. The DME holds the ingredients of the aerosol in a homogenous liquid solution while it is in an aerosol bomb. Upon release of the aerosol, the DME flashes off and the remaining ingredients separate into two phases: a liquid phase, and a solid or oil phase having the active insecticidal ingredients.
Patent CA-2067709-A1 (CA)
Title: Process for the manufacture of printed circuits using electrophoretically deposited organic resists
Inventor: JOHNSON JAMES A
IPC: H05K3/00
Filed: 1992-04-30
Abstract: Copper surfaces upon which organic resins are electrophoretically deposited to serve as, e.g., plating or etch resists in the course of manufacturing printed circuits, are preliminarily provided with a uniformizing/ passivating coating layer,  such as a layer of copper oxide or phosphate conversion coating,  over which the organic resin is electrophoretically deposited, resulting in the organic resin being deposited with substantial uniformity in thickness and properties.
Patent CA-2069301-A1 (CA)
Title: Framed stencil apparatus
Inventor: CASAGRANDE CHARLES L
IPC: B41N1/24
Filed: 1991-06-27
Abstract: ABSTRACT The present invention is a framed stencil apparatus (10) which can be releasably secured to an upper surface of a substrate (14).  The framed stencil apparatus (10) comprises a stencil material (16) which is deformable to accept impression of indicia and also enables the reproduction of the impressed indicia on another surface. The present invention further includes a substantially continuous frame (18) which defines an opening (17) and is attached to a marginal portion of the stencil material.  The opening (17) is large enough to permit the stencil material to contact the substrate (14) in an unobstructed manner for transfer of the impressed indicia onto the substrate (14). The present invention is cleanly and releasably secured to the substrate (14) through the frame (18).  The apparatus (10) attaches such that objectionable residues do not remain on the substrate (14) and the frame (18) after the frame (18) is released therefrom.
Patent CA-2069651-A1 (CA)
Title: Stabilization of dichlorotrifluoroethane-containing mixtures
Inventor: SCHUETZ CLAUDIA
IPC: C07C17/42
Filed: 1992-05-27
Abstract: Abstract of the disclosure:            Stabilization   of   dichlorotrifluoxoethane containing mixtures The invention relates to a mixture which essentially comprises  2,4-diphenyl-4-methylpentene,  4-tert.-butyl-pyrocatechol and at least one of the two dichlorotri-fluoroethanes CF3-CHCl2 and CClF2-CHClF, and to a process for the stabilization of mixtures containing at least one of the dichlorotrifluoroethanes CF3-CHCl2 and CClF2-CHClF and at least one aminopolyol and/or amine, which com-prises adding an effective amount of 2,4-diphenyl-4-methylpentene  and 4-tert.-butylpyrocatechol  to  the mixtures.
Patent CA-2070580-A1 (CA)
Title: Storage rack systems
Inventor: ALLEN DONALD R
IPC: B65G1/02
Filed: 1992-06-05
Abstract: Storage rack systems having a plurality of storage bays adapted to store pallet loads that are three, four and five pallets deep are disclosed.  Each of the systems includes a pair of outer tracks extending the full depth of the storage rack and a pair of inner tracks located inside of the outer tracks and extending for a short distance.  A lower part for each of the three, four and five deep systems is provided with a pair of front wheels which ride on the outer tracks and a pair of rear wheels which ride on the inner tracks.
Patent CA-2070870-A1 (CA)
IPC: E21B37/10
Filed: 1992-06-09
Abstract: A stop for an oil well swabbing device which is economical to use, is readily positioned in the well casing at the desired level, and is readily removable with a conventional fishing tool.
Patent CA-2071239-A1 (CA)
Inventor: MCELROY LUCIAN G
IPC: B60S3/00
Filed: 1992-06-15
Abstract: A drying apparatus (10) for a vehicle washing system maintains blower air bags (18) a predetermined distance from the vehicle without contacting same providing forced air against the vehicle.  Ultrasonic sensor (66) are provided on front and back sides of the nozzle (26) for sensing objects within a predetermined distance  in combination  with control circuitry.  The control circuitry controls a motor (42) to retract a cord (36) to in turn raise or move out of the path of the vehicle, the air bag (18) maintaining the predetermined  distance from the vehicle.   The signals from each of the  sensors (66) are each combined to control the  motor.   Releasable connections are provided between the air bag and support structure to allow releasing of control of the cord in case of emergency.
Patent CA-2071377-A1 (CA)
Inventor: ZAD PARVIZ P
IPC: E03D9/08
Filed: 1992-06-16
Abstract: In a device to wash the anus area after defecation, it is known that a jet of water from a nozzle installed under a toilet bowl seat can be used, (US Patent, 276 2058 & 346 2766). This device consists of a rigid nozzle that is connected to the water supply line of toilet water tank by means of a flexible hose and a Tee connection. Tee connection will be installed on the water tank supply line to branch water supply to the device. A valve will also be installed between the rigid nozzle and the flexible hose. The rigid nozzle will be mounted underneath the toilet seat by means of two clamps. The nozzle discharge opening remains blocked by a simple cover when the device is not in use and it is exposed only when the water valve is turned open for washing.
Patent CA-2074241-A1 (CA)
Inventor: LOEPPERT PETER V
IPC: G01L9/12
Filed: 1992-07-20
Abstract: ABSTRACT           An improved diaphragm sensor employs silicon-on-silicon technology and has monolithic integrated signal conditioning circuitry.  The support circuitry minimizes the effects of stray capacitance and may be configured to provide either analog or digital output to external terminals.  It has a wide band of linearity and is particularly useful for accurately measuring pressure less than 0.5 PSI.  The sensor is constructed by joining a silicon top plate having a mechanical pressure stop, a reduced thickness  silicon diaphragm and a back plate having CMOS circuitry thereon.  These components are bonded together by eutectric soldering.
Patent CA-2075576-A1 (CA)
Title: Depolymerization of polymers and their use in thermoset compositions and composites
Inventor: BISWAS ATANU
IPC: C08G75/0286
Filed: 1992-08-07
Abstract: DEPOLYMERIZATION OF POLYMERS AND THEIR     USE IN THERMOSET COMPOSITIONS AND COMPOSITES               Abstract of the Invention The present invention is a novel process of preparing a reactive reduced molecular weight polyarylene polyether from a starting polyarylene polyether, wherein said reduced molecular weight polyarylene polyether has a lower molecular weight than said starting polyarylene polyether.  The process comprises the steps of first contacting said starting polyarylene polyether with a nucleophilic reagent for a period of time sufficient to reduce the molecular weight of said starting polyarylene polyether, and then recovering said reactive reduced molecular (Abstract cont'd.) weight polyarylene polyether.  The reactive reduced molecular weight polyarylenes produced by such process can be used in combination with various other resins.  This process produces many novel reactive polyarylene polyethers represented by the formula   wherein Ar is a bivalent aromatic residue of a polyarylene polyether, Ar may vary within said reactive polyarylene polyether, at least a portion of Ar comprises an aromatic ether or an aromatic thioether group that is ortho or para in position to at least one SO2 group; E represents reactive groups having at least one reactive site, that are located at chain termini, along a chain, or both; z is the number average reactive sites per chain, 0.1 ? z ? 10., and n is the number average repeating units ArSO2.