baber/WOPTO huggingface dataset:
Patent CA-1111157-A (CA)
Inventor: BABCOCK ALAN R
IPC: C02F1/52
Filed: 1979-03-30
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           A method is disclosed for treating aqueous effluents containing at least one of the elements arsenic and antimony in which said element is oxidized to the pentavalent stage, lime is then added to the effluent in excess, preferably 10 to 50% in excess, of the amount sufficient to precipitate a calcium compound of the element and maintain the pH of the effluent at a value of at least 12, and the precipitated compound and excess lime permitted to harden.  The resulting slurry mixture preferably is partially dewatered after precipitation of the calcium compound to a 10 to 40% by weight solids content prior to hardening.  A compound chosen from pozzolanic slag, pozzolanic fly ash, Portland cement, soluble silicates and lime or mixtures thereof in an amount in the range of 10 to 50% by weight of the partially dewatered slurry mixture may be added after dewatering.
Patent CA-1116446-A (CA)
Inventor: TROMBLEY WAYNE E
IPC: G02C7/04
Filed: 1979-04-18
Granted: 1982-01-19
Abstract: Abstract of the Disclosure The inner surface of a semi-scleral contact lens is shaped relative to the topography of an individual eyeball to achieve central contact and edge contact with tearfilm clearance therebetween.  The lens has improved centering properties.  The lens includes an optical zone which is the spherical equivalent of the radius of curvature of the cornea at its optical centerline and the corneal dimensional diameter.  The optical zone has a sagittal depth which is dependent on the topography of the cornea.  The lens also includes a conoid section which is tangent to the edge of the optical zone and which extends from the edge of the optical zone to a selected point over the limbus.  A peripheral curve having an individual radius of curvature extends from the selected point to the edge of the lens.
Patent CA-1159471-A (CA)
Inventor: KAY IAN T
IPC: C07C43/215
Filed: 1979-05-09
Granted: 1983-12-27
Abstract: ABSTRACT          Compounds of formula I, useful as intermediates in the preparation of insecticidal pyrethroid esters, wherein X is hydroxy or halogen, R3 and R4 are both halogen and R5 is hydrogen or cyano.                               (I)
Patent CA-1077319-A (CA)
Title: Apparatus for forming a convoluted container sidewall
Inventor: FARFAGLIA SILVIO T
IPC: B31B50/28
Filed: 1979-07-05
Granted: 1980-05-13
Abstract: APPARATUS FOR FORMING A CONVOLUTED        CONTAINER SIDEWALL                 Abstract of the Disclosure Apperatus for wrapping a sidewall blank about a mandrel utilizing two wrapping wings which are rotated about the mandrel axis by respective drive trains, each drive train comprising a shaft positioned coaxially with the mandrel, a lever arm connecting the wrapping wing to the shaft, a slide member positioned in a trans-versely extending slot in a common reciprocating carriage, and a crank arm secured to the shaft and pivotably connected to the slide member.  One of the wiping wings can be provided with an L-shaped blade with one leg of the L-shaped blade extending forwardly in the direction of travel of that wiping wing during the wrapping operation to lead the blade of the other wiping wing.
Patent CA-1127535-A (CA)
Title: Method of diagnosing cancer by detecting elevated  anti-t antibody activity
Inventor: KIM YUNG D
IPC: G01N33/574
Filed: 1979-10-05
Granted: 1982-07-13
Abstract: Canada - #3593 A B S T R A C T           This application discloses a method for diagnosing cancer by employing any of various immunochemical procedures to detect elevated levels of anti-(blood group T antigen) antibodies in a biological sample.
Patent CA-1122908-A (CA)
Title: Oxidation inhibiting cap for a carbon  friction disc
Inventor: ANDERSON BRUCE W
IPC: F16D69/02
Filed: 1979-10-18
Granted: 1982-05-04
Abstract: OXIDATION INHIBITING CAP FOR A CARBON FRICTION DISC               ABSTRACT OF THE DISCLOSURE           A series of cap members for covering the drive splines of a plurality of carbon friction discs in a wheel and brake assembly to protect the carbon from oxidization.  Each of the cap members have first and second tabs that project into the root sections on the carbon disc between the drive splines.  The first tabs on the series of cap members are connected to adjacent second tabs to form a continuous ring member which protects the carbon friction disc from degradation caused by oxidation. During a brake application, the carbon friction disc adjacent the cap member engage a portion of the cap member.  Thereafter, the cap member and/or the adjacent carbon friction disc are worn away to maintain the oxidation protection after repeated brake applications.
Patent CA-1140809-A (CA)
Inventor: MARZ HORST F
IPC: F42B3/00
Filed: 1979-10-24
Granted: 1983-02-08
Abstract: Abstract:   Explosive Container A thermoplastic film package containing a blasting ex-plosive is provided having utility in secondary blast-ing operations.  The package comprises superimposed film panels joined along their periphery to form a bag and having closeable neck-like openings at opposite ends of the bag.  The package lends itself to fabrication from flat film or sheet by heat-sealing techniques and may be filled with explosives on continuous packaging apparatus.
Patent CA-1118339-A (CA)
Inventor: ROTHBERG ROBERT H
IPC: E21B23/03
Filed: 1979-12-04
Granted: 1982-02-16
Abstract: ABSTRACT A divertor tool is disclosed for diverting a pump-down tool (PDT) along various branches of a pipeline.  The diverter includes a flapper to redirect the PDT along an alternate conduit of a wye-section of the pipeline. The flapper is hydraulically operated by an actuation chamber at the lower end of the diverter.  The entire diverter tool is capable of being installed in a side-pocket mandrel of the pipeline adjacent the wye-section using such standard oil field equipment as a kickover tool.  The entire diverter is also easily removable for servicing using a standard kickover tool.
Patent CA-1144321-A (CA)
Title: In-mold coating of structural  foams
Inventor: GRIFFITH RICHARD M
IPC: B32B5/18
Filed: 1980-01-10
Granted: 1983-04-12
Abstract: ABSTRACT OF THE DISCLOSURE      A method is disclosed comprising in-mold coating a struc-tural foam part made from a thermoplastic aromatic polycarbon-ate resin or a thermoplastic ABS polymer resin with a thermo-setting in-mold coating composition at a pressure of from about 25 to 50 p.s.i. and at a temperature not in excess of about 200°F. for from about 1 to 10 minutes, preferably for from about 1 to 3 minutes, to provide hard, smooth and adherent coatings, said thermosetting in-mold coating com-position comprising an ethylenically unsaturated polyester resin and an ethylenically unsaturated monomer(s) catalyzed with an organic perioxide initiator including an accelerator for the initiator.
Patent CA-1126854-A (CA)
Inventor: YOSHIDA HAJIME
IPC: G01N21/956
Filed: 1980-01-31
Granted: 1982-06-29
Abstract: ABSTRACT           An inspection apparatus for defects on patterns is disclosed which has a television camera picking up an object with a pattern to be inspected, an inspection device receiving an output from the television camera to inspect the object, an optical mask having a reference pattern made of opaque material and transparent material and serving as a reference for in-spection of defects of the object, and a device for supporting the optical mask between the television camera and the object on the optical axis of the television camera in such a manner that the patterns of the object and optical mask are matched with each other on the optical axis of the television camera.
Patent CA-1145288-A (CA)
Inventor: VOLKAMER KLAUS
IPC: C07C7/08
Filed: 1980-03-05
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE:     A process for isolating a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises:  a) from 75 to 98 per cent by weight of an N-alkylsubstituted lower aliphatic acid amide or of an N-alkylsubstituted alicyclic acid amide having 5 ring members, boiling at from 140 to 260°C, or butyrolactone or methoxypropionitrile and b)  from 2 to 25 per cent by weight of acetonitrile.
Patent CA-1135928-A (CA)
Inventor: SALKELD STEPHEN A
IPC: E04B2/74
Filed: 1980-04-24
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE            A panel having means for interconnecting it to other like panels, said interconnecting means comprising hook and ring connector members which are longitudinally shiftable relative to the length of the panel and are substantially flat.
Patent CA-1125788-A (CA)
Inventor: SCHOUTEETEN ALAIN
IPC: C07C47/565
Filed: 1980-05-02
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE    The invention relates to sodium paraformylphenolate cry-stallised with two molecules of water, as a novel product. It is manufactured by:      a) condensing glyoxylic acid with an excess of phenol in water in the presence of sodium hydroxide at a temperature comprised between 30°C and 100°C ;      b) neutralising the solution thus obtained and then freeing it from the unconverted phenol by steam distillation or ex-traction with a water-immiscible organic solvent and then sub-jecting it hot under a pressure of oxygen, to a catalytic decarboxylating oxidising degradation in the presence of sodium hydroxide ;      c)allowing the aqueous solution so-obtained,after removal of the catalyst by filtration, and then concentration hot un-der vacuum to 60% plus or minus 10% of its initial volume, to crystallise ; and d) draining the precipitated crystals, washing them and then drying them to constant weight under vacuum of 1 mm of mercury at 20°C, to obtain sodium paraformylphenolate crystal-lised with 2 molecules of water or dried to constant weight under a vacuum of 1 mm of mercury at 100°C to obtain it in arhydrous form.  The product is useful for preparing parahy-droxy bepzaldehyde quantitatively and without other purifica-tion reactions.
Patent CA-1133198-A (CA)
Title: Method of preparing a mixture of ion exchange resins
Inventor: BASS WALTER C
IPC: B01J47/04
Filed: 1980-06-03
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE      A method of preparing a mixture of cation and anion exchange resins in the size range of about 10 to 250 microns, comprising combining cation exchange resins and anion exchange resins of a size larger than 60 mesh and grinding the combination of anion and cation exchange resins to a size range of about 10 to 250 microns.
Patent CA-1145739-A (CA)
Inventor: BUNGER HEINRICH
IPC: B01J23/90
Filed: 1980-06-11
Granted: 1983-05-03
Abstract: ABSTRACT OF THE DISCLOSE:      A process for effecting the recovery and use of a heavy metal oxidation catalyst from a high-boiling distillation residue obtained during the Witten process for the production of dimethyl terephthalate involves the extraction of the high-boiling distillation residue with water or dilute aqueous solution of low molecular weight aliphatic monocarboxylic acids or alcohols and recycling of the extract into the oxidation stage of the Witten process.  In the extract the quantitative ratio of the sum of the amount of trimellitic acid and mono-methyl ester of trimellitic acid to the amount of heavy metal catalyst is controlled to be at a value of no more than 1.8: 1 and in the oxidation stage of the Witten process the catalyst concentration (c), expressed in p.p.m., is represented by the formula:                       wherein a represents the sum of trimellitic acid and mono-methyl ester of trimellitic acid, b is the amount of heavy metal oxidation catalyst within the extract, and d is in a range of from 60 to 300 p.p.m.
Patent CA-1096566-A (CA)
Inventor: KING FREDERICK D
IPC: B29D11/00
Filed: 1980-06-17
Granted: 1981-03-03
Abstract: APPARATUS FOR MAKING OPTICAL CABLES          Abstract of the Disclosure An optical cable has a grooved central filament, the grooves following helical paths, the helices changing hand along the filament.  In the manufacture of the filament, plastics is extruded past a fixed die and some way downstream, the filament is held and twisted first in one direction and then in the opposite direction so that the helical paths are introduced where the plastics exits the die.  Dielectric optical waveguides are disposed in the grooves and the whole is surrounded by an extruded plastic sheath to produce an optical cable.                             - i -
Patent CA-1158705-A (CA)
Inventor: HEINZL JOACHIM
IPC: B41J2/21
Filed: 1980-06-26
Granted: 1983-12-13
Abstract: ABSTRACT OF THE DISCLOSURE           An ink printing device for multi-colored printing of a recording medium utilizes a single ink printing head having a plurality of printing jets arranged in a pattern on the printer head body.  Printer jets are divided into groups vertically adjacent to one another having individual ink supplies with colors different from one another.  In a line-wise printing operation, recording medium is indexed perpendicularly to the printing direction at the end of a printed line by a vertical distance which correponds to printing width of each jet group.          Operation of the printer head affords superimposed printing to effect secondary, composite colors or half-tone shaded patterns.
Patent CA-1148547-A (CA)
Inventor: TOROSSIAN DIERAN R
IPC: C07C67/00
Filed: 1980-07-11
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE     Amino-ether oxides of formula :       in which R1 is lower alkyl, R2 and R3 which are the same or different are hydrogen or lower alkyl, R4 is a phenyl or phenoxy nucleus optionally monosubstituted to trisubs-tituted by substitutents which are the same or different, halogen or lower alkoxy, R5 is aphenyl radical optionally monosubstituted to trisubstituted by substitutents which are the same or different, halogen, lower alkyl, lower alkoxy or nitro, a pyridyl radical or a lower alkylk radical, n is equal to zero, 1 or 2 and p is an integer from 0 to 9, m and q are equal to zero or 1 .       Local and spasmolytic anaesthetics .
Patent CA-1171901-A (CA)
Inventor: WALKER LOREN H
IPC: H02P1/26
Filed: 1980-07-11
Granted: 1984-07-31
Abstract: APPARATUS AND METHOD FOR HIGH SLIP OPERATION OF AN AC ELECTRIC MOTOR AT SUBSTANTAILLY ZERO     ROTATION AND SUBSTANTIALLY ZERO TORQUE     ABSTRACT OF THE DISCLOSURE Apparatus and method for high slip operation of an AC electric motor at substantially zero rotation and substantially zero torque in an AC electric motor drive system is disclosed.  The electric motor produces a rotation in response to an outgoing signal, such as a drive current, of variable magnitude and frequency supplied by the drive system.  An idle control signal is furnished when the drive system is in a substantially zero rotation and substantially zero torque state, where the frequency of the current is approximately zero.  The idle control signal causes substantially simultaneously an adjustment of the magnitude of the current to a predetermined magnitude level and a rapid raising of the frequency of the current to a higher frequency value to produce per-unit slip s =   greater than 0.1, where n1 is the synchronous rotation of the stator field of the motor, n is the rotation of the rotor of the motor, and nb is the synchronous speed of the stator field at motor rated rpm.  The adjustment of the current causes the motor to produce substantially zero rotation and substantially zero torque because the motor is operating in the high slip region of its torque-rotation curve.  The apparatus and method of the present invention allows the motor to accelerate rapidly on command from the substantially zero rotation and substantially zero torque high slip mode.
Patent CA-1145802-A (CA)
Inventor: POUBEAU PIERRE
IPC: F16C39/00
Filed: 1980-07-29
Granted: 1983-05-03
Abstract: ABSTRACT OF THE DISCLOSURE :        A stator and rotor lightened pivoting device for satellite. It comprises two passive magnetic suspension means, each of which consists of a radially magnetized crown fastened to the rotor and of a radially magnetized crown fastened to the stator. These suspension means generate axial magnetic fields producing two contrary forces. A third means of the pivot-stop type is used so that the resulting force between said contrary forces is itself balanced by reaction of said pivot upon said stop. A pivoting means for the rotor comprises a motor responsive to the angular positioning of said rotor. The invention is particularly adapted to masts serving as connecting supports for orientable solar panels producing energy on board of a satellite.
Patent CA-1143848-A (CA)
Inventor: WONG WILSON T
IPC: G06F7/52
Filed: 1980-07-30
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE           This invention is directed at an apparatus and method for detecting zero operand information and which also serves to detect trailing zeros.  This circuit has application in computer circuitry, systems or the like wherein elongated information trains represented by multiple words of multiple bits are multiplied by equally long information trains.  In many cases, the trains comprise a plurality of trailing zeros which, in accordance with the operation of this circuit, can be detected whereby the multiplication operation can be significantly speeded by avoiding unnecessary multiplication by zeros without loss of accuracy.
Patent CA-1150837-A (CA)
Inventor: NAM BILLIE
IPC: B41M5/44
Filed: 1980-09-30
Granted: 1983-07-26
Abstract: Abstract of the Disclosure A laser recording medium in which the metal recording layer is completely encapsulated between an intermediate layer of solvent resistant plastic material formed on a substrate and a protective layer of solvent-based plastic material formed on the recording layer.  In some examples the solvent resis-tant plastic material is a cross-linked polymeric material formed in a solvent coating process and in other examples the solvent resistant plastic material is a vapor deposited polymeric material.
Patent CA-1152482-A (CA)
Inventor: CHU CHIN-CHIUN
IPC: C07C1/00
Filed: 1980-10-02
Granted: 1983-08-23
Abstract: ABSTRACT     A method for prolonging the useful life of para-selective modified zeolite catalysts, said zeolites having a silica to alumina mole ratio of at least about 12, a constraint index of about 1-12 and having been modified by the addition thereto of a minor proportion of a difficultly reducible oxide.  The selective catalyst is maintained at temperatures of at least about 50°C or, alternatively, in an atmosphere substantially free of moisture.
Patent CA-1145663-A (CA)
Inventor: HENDRICKSON JAMES D
IPC: E21B23/00
Filed: 1980-10-09
Granted: 1983-05-03
Abstract: ABSTRACT    A crossover tool for use with concentric tubing strings.  The apparatus disclosed provides the ability to treat and/or gravel pack a producing zone in a well, and is particularly suited for use in a multiple-zone well.  The crossover tool may be locked in any one of three positions:  a circulate mode, a closed test mode, or a closed bypass mode to facilitate movement of the tool within the well bore.  All operation of the cross-over tool is effected by reciprocation of the pipe string to which it is attached.  Alternative embodiments are also disclosed which dispense with the closed test mode.
Patent CA-1148204-A (CA)
Inventor: LITCHFIELD LEON G
IPC: A47B88/04
Filed: 1980-10-22
Granted: 1983-06-14
Abstract: ABSTRACT OF THE DISCLOSURE A drawer has a pair of members mounted one at each of rear corners of a drawer which are moveable between extended and retracted positions.  Rotary actuating means are accessible from within the drawer and operable to effect movement of the members between said positions.
Patent CA-1149768-A (CA)
Inventor: PARKINSON RONALD
IPC: C25C1/08
Filed: 1980-11-12
Granted: 1983-07-12
Abstract: ABSTRACT         When the electrodeposition of nickel is carried out in the presence of sulphur, it is desirable to control the content and the distribution of the sulphur in the deposited nickel.  Sulphur-bearing nickel is deposited onto a multiplicity of cathodes in an electrolytic cell.          The electrolyte contains nickel and chloride as principal ions and at least one thiocyanate compound.  The oxidation of the thiocyanate ions within the cell by the chlorine gas generated at the anodes, is almost completely avoided by directing the flow of the electrolyte from the cathode compartment through diaphragms into the anode compartments.          The unidirectional flow of the electrolyte is ensured by continuous removal of chlorine and chlorine containing electrolyte by suction from the anode compartments, through a manifold.  Back diffusion of chlorine to the cathode is further prevented by means of a weir outside the diaphragm enclosed anode compartments.
Patent CA-1163595-A (CA)
Inventor: CHORNET ESTEBAN
IPC: C10B53/02
Filed: 1980-12-18
Granted: 1984-03-13
Abstract: A B S T R A C T          . .     A process is provided for subjecting a ligno-cellulosic material to primary pyrolysis which comprises: introduction of air-dry lignccellulosic material into a reaction chamber where it is subjected to a temperature variation of from room temperature to a temperature within the range of from 350 to 950°C at a heating rate of from at least 1°C/min. while maintaining the reaction zone under a vacuum lower than 100 mm/Hg (absolute pressure) whereby as the primary thermal decomposition products are formed they are rapidly removed from the reaction zone thus yielding primary decomposition products containing at least 24% by weight of organic condensable products.
Patent CA-1159635-A (CA)
Inventor: MARTIN PAUL W
IPC: B21D39/12
Filed: 1980-12-30
Granted: 1984-01-03
Abstract: IMPROVED TUBING EXPANDER FOR   BOILER TUBES OR THE LIKE       Abstract of the Disclosure An improved expander of this invention is used for ex-panding tubes into tube sheets and flaring the ends extend-ing therefrom, such as is common practice in the manufacture of boilers.  The improved expander includes both straight rolls for expanding the tubes and tapered rolls for flaring the tube ends.  The rolls are carried by a cage that en-circles a tapered mandrel, which when forced through the cage, causes the rolls to move relatively outwardly to de-form or expand the tube.  The expander also includes a thrust member that has an end that is engageable with the face of the tube sheet and a stop member carried by the cage that engages the thrust member, when the rolls have entered the tubing to the proper distance, to deform the tube the desired amount as well as flaring the ends to the proper position.
Patent CA-1158223-A (CA)
Title: Catalyseurs de polymerisation de l'ethylene, leur  procede de fabrication, et un procede de  polymerisation utilisant lesdits catalyseurs
Inventor: BUJADOUX KAREL
IPC: C08F4/64
Filed: 1981-01-20
Granted: 1983-12-06
Abstract: Catalyseurs de polymérisation de l'éthylène, leur procédé de fabrication et un procédé de polymérisation utilisant lesdits catalyseurs. Les catalyseurs ont pour formule : (TiC13,?AlCl3)x(MCl3)x (MgX2)y dans laquelle 0,3 ? x ? 3, 0 ? y ? 20, M est un métal de transition des groupes VB et VI B de la Classification Périodique et X est un halogène, et sont préparés en mettant en contact le trichlorure de titane syncristallisé avec le chlorure d'aluminium, le trichlorure de métal M et, le cas échéant, l'halogénure de magnésium anhydre et en soumettant ces chlorures à une étape de broyage au cours de laquelle l'énergie de broyage est au moins égale à 3 KWh par kg de matière solide traitée. Les catalyseurs permettent de polymériser l'éthylène sous une pression de 300 à 2 500 bars et à une température de 180.degree. à 300.degree.C, en présence d'un activateur choisi parmi les hydrures et les composés organométalliques des métaux des groupes 1 à III de la Classification Périodique, le rapport atomique du métal de l'activateur à la somme Ti + M étant compris entre 0,1 et 10, et le temps de séjour moyen du système catalytique dans le réacteur de polymérisation étant compris entre 2 et 100 secondes.