baber/WOPTO huggingface dataset:
Patent CA-1040650-A (CA)
Inventor: AYCOCK DAVID F
IPC: C07C29/156
Filed: 1974-05-21
Granted: 1978-10-17
Abstract: ABSTRACT OF THE DISCLOSURE An improved process for recycling a cobalt hydroform-ylation catalyst from a hydroformylation reaction which comprises feeding a hydroformylation product into a mixing zone, adding water thereto, feeding the mixture of water and hydroformylation product into a settling zone where two phases are formed, the phase containing the cobalt hydroformylation catalyst is recycled into the hydrofor-mylation reaction.
Patent CA-1038396-A (CA)
Title: Process for the preparation of (1-oxo-2-phenyl, halophenyl or thienyl-2-methyl-6,7-dichloro-5-indanyloxy)acetic acid
Inventor: CHAMBERLIN EARL M
IPC: C07C45/00
Filed: 1974-10-03
Granted: 1978-09-12
Abstract: ABSTRACT OF THE DISCLOSURE         (1-Oxo-2-phenyl, halophenyl or thienyl-2-methyl 6,7-dichloro-5-indanyloxy)-acetic acid is prepared by reacting a 2,3-dichloroanisole or 2 3-dichlorophenoxy-acetic acid or ester with a suitable .alpha.-haloacylhalide or .beta.-haloacylhalide under Friedel-Crafts conditions to form an intermediate acylation product which undergoes dehydro-halogenation in the side chain followed by ring closure to give an intermediate or the desired 2-substituted indanone.          This latter compound is alkylated with a methylating or arylating agent to give the desired indanone.  Several novel intermediates are also claimed.
Patent CA-1070313-A (CA)
Inventor: DELARGE JACQUES E
IPC: A61P29/00
Filed: 1975-04-16
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE           New derivatives of pyridine are provided of the general formula:               the new derivatives have anti-inflammatory and diuretic properties; processes for preparing the new derivatives are also provided.
Patent CA-1058945-A (CA)
Inventor: KRUCK PETER
IPC: G03C1/85
Filed: 1975-08-06
Granted: 1979-07-24
Abstract: PROCESS FOR THE PREPARATION OF SLIDEABLE ANTISTATIC LAYERS         ABSTRACT OF DISCLOSURE          A slideable antistatic back coating for photographic materials is produced by applying to the back side of the material a mixture comprising substantially a polymeric electrolyte, a polyolefine dispersion of particles smaller than 0.5µ and a mixture of water and organic solvents which are miscible with water.
Patent CA-1051219-A (CA)
Inventor: VAN PUTTEN ANTONIUS F P
IPC: G01F1/68
Filed: 1975-10-03
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE       A device for measuring the flow velocity of a medium, comprising four thin film resistors, deposited on a semi-conductor chip with dimensions of about 0.06 inch by 0.06 inch, said resistors being connected into a bridge configuration of which two bridgepoints are con-nected to at least one amplifier which is formed as an integrated amplifier in the space on the chip inside the resistors.
Patent CA-1053835-A (CA)
Inventor: MIESSEN RALF
IPC: C08L33/20
Filed: 1975-11-13
Granted: 1979-05-01
Abstract: Abstract of the Disclosure The invention relates to dry-spun modacrylic filaments with improved coloristic properties based on a polymer mixture, which comprises at least one acrylonitrile-vinyl chloride copolymer and a chlorine-containing copolymer containing sulphonic acid ester groups or sulphuric acid ester groups.
Patent CA-1042811-A (CA)
Title: Process and apparatus for speech privacy improvement through incoherent masking noise sound generation in open-plan office spaces and the like
Inventor: WATTERS BILL G
IPC: G10K11/00
Filed: 1975-11-24
Granted: 1978-11-21
Abstract: Abstract of Disclosure The invention involves the use of a plurality of  incoherent noise generators distributed, in one embodi-ment, along ceilings in open-plan and partitioned office spaces and the like, to diffuse masking sound energy through acoustical tile and other false ceiling structures while tailoring the same for speech privacy results.
Patent CA-1050623-A (CA)
Inventor: BROMBERG MENASHE
IPC: H02G3/12
Filed: 1975-11-25
Granted: 1979-03-13
Abstract: ELECTRICAL RECEPTACLE     ABSTRACT OF THE DISCLOSURE:           An electrical receptable comprises an integrally molded body member and flanged face plate formed preferably as a duplex receptacle for the receipt of conventional two and three wire electrical plugs.  The interior of the body member comprises a series of selectively positioned contact supports for engagement with novel contact means suitably aligned therewithin.  A mating cover member designed to latch with the body member is provided with inwardly directed projections selectively aligned in a series of rows to provide discrete cradles for each of the conductors of a multiconductor electrical cable to be attached to the receptacle.
Patent CA-1036334-A (CA)
Inventor: HANSON WALDO B
IPC: H01G13/00
Filed: 1975-12-17
Granted: 1978-08-15
Abstract: ABSTRACT     Electrical components having generally parallel leads extending in one direction from one side of their bodies, respectively, are successively trans-ferred to a conveyor means movable through sequential processing stations to prepare the leads for circuit board connection or sequencing preparatory to such connection.  Spaced load grippers on the conveyor means control lead portions adjacent to the bodies of the components.  The stations successively act to determine the standoff length of the leads from the bodies of the components, reform remaining portions of the leads in coaxial relation while maintaining the standoff length, check for omission of a reformed component from proper position in the series and, upon release from the grippers, tape the coaxial portions of the leads of adjacent components in parallel, side-by-side relation. Preferably, the means for checking reformed component presence also controls turning of a reel for storing the repackaged components.
Patent CA-1050477-A (CA)
Inventor: OLOMAN COLIN W
IPC: C25B1/30
Filed: 1976-01-12
Granted: 1979-03-13
Abstract: ELECTROLYTIC PRODUCTION OF ALKALINE PEROXIDE SOLUTIONS     Abstract of the Disclosure A novel electrolytic cell and process are described for producing alkaline peroxide solutions.  The cell has an anode and cathode in spaced apart relationship, with the cathode being in the form of a fluid permeable conductive mass e.g.  a packed bed of graphite particles, separated from the anode by a barrier wall.  This barrier wall can be either a cation specific membrane dividing the cell into separate cathode and anode chambers or an insulating mesh permitting free flow of electrolyte between the cathode and anode.  An aqueous alkaline electrolyte and oxygen are passed cocurrently through the cathode bed and the peroxide is generated in the solution within the cathode bed. The alkaline peroxide obtained is directly usable in wood pulp bleaching operations.
Patent CA-1061851-A (CA)
Inventor: HOSOKOSHI KAKUICHIRO
IPC: H01J29/51
Filed: 1976-01-23
Granted: 1979-09-04
Abstract: ABSTRACT OF THE DISCLOSURE         A color television tube assembly in which the aperture of a control grid of each electron gun is made in the form of an ellipse with its major axis in line with the vertical direction and the lengths of the vertical and horizontal axes of the aperture or actionspace of an electron lens electrode are selected different from each other, whereby the beam spot at the center of the screen may be in the form of a vertically elongated ellipse while the beam spots at the horizontal and vertical edges of the screen are in the form of a horizontally elongated ellipse.
Patent CA-1071366-A (CA)
Inventor: LYMAN RICHARD J
IPC: B29C44/34
Filed: 1976-05-27
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE A method for making an article such as a chair seat or the like is disclosed with the method including: releasably attaching a rigid insert comprising fiberboard to the first half of a mold, said rigid insert being of the general shape of, but smaller than, the article to be produced to leave a peripheral gap portion, said rigid insert and said first half of the mold having an air permeable material extending from between them outward toward the edges of the first half of the mold, said air permeable material being centrally discontinuous across essentially all of the rigid insert to be provided generally around a peripheral portion of the aperture of the second half of a mold; coating the cavity of said second half of the mold with a release agent; inserting a liquid foamable urethane plasatic material into said cavity of the second half of the mold, said cavity being of the shape of  the article being produced; placing the two mold halves together with the air permeable material extending from the peripheral portion of the aperture to the extending of the mold; allowing the urethane plastic material to cure and form a rigid hard structure throughout while expanding around the sides of the rigid insert; and removing the finished foamed plastic article from the mold with the rigid insert remaining in the foamed plastic to become an integral part thereof.
Patent CA-1074530-A (CA)
Inventor: PARKER ALAN J
IPC: C22B15/00
Filed: 1976-07-16
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE Cuprous sulphate solutions, suitable for thermal or electochemical disproportionation to yield copper, are obtained by dissolving copper sulphites, such as Chevreul's salt or cuprous ammonium sulphite, in acetonitrile-water or 2 hydroxycyanoethane-water mixtures, preferably in the presence of cupric sulphate.  This discovery is capable of a number of applications, one of which is the recovery of copper from chalcopyrite by the following five steps. An oxidising roast of chalcopyrite such as to produce either cupric sulphate and/or copper oxide, leaching of cupric sulphate from the calcine, precipitation of Chevreul's salt and/or other copper sulphites with a soluble salt of sulphurous acid, including bisulphites, dissolution of the copper sulphite as cuprous sulphate, using cupric sulphate in an acetonitrile-water solution as oxidant; precipitation of pure copper by thermal disproportionation of the cuprous sulphate solution.  Acetonitrile and acidic cupric sulphate solution may be recycled.  Advantages over conventional processes, much as roast, leach-electrowin, or smelt, convert, electrorefine, include lower cost,  lower energy comsumption, sulplur removal as ammonium sulphate or gypsum, rather than as sulphur dioxide, and rapid throughput.  The nett reaction is: 2CuFeS2 + 4H20 + 2 02 + 8NH3 + 2Cu + 4(NH4)2SO4 + Fe203,
Patent CA-1121813-A (CA)
Inventor: ARATANI TADATOSHI
IPC: C07C67/00
Filed: 1976-07-30
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the production of an optically active alkyl chrysanthemate which comprises the reaction of 2,5-dimethyl-2,4-hexadiene with an alkyl diazoacetate of the formula:     wherein R is selected from the group consisting of (a) cyclo-alkyl group with or without alkyl substituent(s) whose total carbon atom number is 5 - 20, (b) tertiary aralkyl group whose carbon atom number is 9 to 20, and (c) tertiary alkyl group with or without alkoxy substituent(s) whose total carbon atom number is 4 - 20, in the presence of a copper complex coordi-natod with a chiral Schiff base of the formula:       wherein C* is an asymmetric carbon atom, R1 is selected from the group consisting of (a) alkyl groups whose carbon atom number is 1 - 10 and (b) aralkyl groups with or without alkoxy sub3tituent(s), whose total carbon atom number is 7 - 20, R2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7 - 30, each of X1 and X2 is selected from the group consisting of (a) hydrogen atom, (b) alkyl groups havins 1 - 10 carbon atoms, (c) phenyl group, (d) alkoxy groups having 1 - 10 carbon atoms, (e) halogen atoms and (f) nitro group, or (g) X1 and X2 together form a benzo group.
Patent CA-1073106-A (CA)
Inventor: GERGIS ISORIS S
IPC: G11C19/08
Filed: 1976-09-13
Granted: 1980-03-04
Abstract: CONSECUTIVE BIT ACCESS OF MAGNETIC BUBBLE DOMAIN MEMORY DEVICES                 ABSTRACT OF THE DISCLOSURE         A magnetic bubble domain chip layout or organization which achieves consecutive bit access is provided by arranging the device in two substantially identical halves or parts.  Each half contains half of the total number of storage loops, a separate access loop with its own generator, switches between the storage loop and an access loop, and a separate detector.          The separate detectors are connected together to form two arms of a single bridge wherein consecutive bit output is achieved.         The generators in each half of the device are located at different distances from the switches between the loops in one half of the device and the associated access loop.  In addition, each of the detectors is located a different distance from the switches in the respective halves or parts of the device.   The invention described herein was made in the course of or under a contract or subcontract thereunder, with the de-partment of the Air Force.
Patent CA-1057722-A (CA)
Inventor: SUTTON LESLIE J
IPC: F16M13/02
Filed: 1976-09-14
Granted: 1979-07-03
Abstract: TITLE         "Telephone Hand-Set Holding Means"        ABSTRACT OF THE DISCLOSURE           A telephone hand-set holding means is disclosed for supporting and maintaing a telephone hand-set relative to a table top, desk, or floor, or like surface, in a convenient user position adjacent to the mouth and ear of a telephone user, thereby leaving the user's hands free.  One embodiment fits about a telephone and has a means to locate with the telephone switch hooks to permit the ringing of the telephone for incoming calls and to disengage therefrom to permit user conversation.
Patent CA-1050782-A (CA)
Inventor: MACEMON JAMES H
IPC: G01J3/44
Filed: 1976-09-23
Granted: 1979-03-20
Abstract: Abstract of the Disclosure A system for plotting the total luminescence spectrum of a sample comprises a spectrofluorometer including excitation and emission monochromator stages having operating wavelengths dependent on applied stepping pulses, and an X-Y plotter having a marking pen synchronized for movemetn along X and Y axin with changes in the wavelengths of the monochromators.          A control circuit generates pulses to incrementally step the flourometer monochromator and horizontally scan the marking pen. level detection circuit monitors the output of the spectro-flourometer and activates the pen upon attainment of a desired contour level.  Limit circuitry incorporated in the control circuit momentarily actuates the excitation  monochromator following each horizontal scan to increase the excitation wavelength for the subsequent emission scan to complete the plot.
Patent CA-1057101-A (CA)
Inventor: CRABIEL WESLEY I
IPC: E02F9/28
Filed: 1976-09-30
Granted: 1979-06-26
Abstract: ROTARY CUTTER FOR A ROAD PLANER     Abstract of the Invention.  The invention is an improved rotary cutter for a road planer, particularly a cold planer.  The rotary cutter comprises a thick-walled metal drum fitted with improved cutter bits and bit holders, according to a pre-selected pattern.  The holders are attached on the drum surface, and each has a tapered socket extending through the main body thereof along a line parallel to the tangent of the drum surface.  The corresponding cutter bit has a shoulderless, tapered shank which fits in and is seated snugly in the socket of the holder and a cutting tip lying in a plane generally radial of the drum.  The cutting action maintains the firm, tight fit of the cutter bits in the holders and reduces the excessive wear experienced in prior cutters.  The invention provides a rotary cutter which is less expensive to make, is more effective in cutting modern paving materials, and which has a longer life span.   1a
Patent CA-1068459-A (CA)
Inventor: DAILEY CHARLES R
IPC: B29C33/02
Filed: 1976-10-29
Granted: 1979-12-25
Abstract: TIRE MOLD HAVING NAILS INSERTED IN THE VENTS               ABSTRACT OF THE DISCLOSURE       Nails with or without one or more washers positioned be-tween the nail head and the face of the  mold are inserted into the vents of tire molds.  The nails prevent rubber protrusion from forming in the vents during molding, but allow the escape of air.
Patent CA-1053047-A (CA)
Inventor: JUSTUS EDGAR J
IPC: D21F1/02
Filed: 1976-10-29
Granted: 1979-04-24
Abstract: Abstract of the Disclosure A method and mechanism for compensating for pressure fluctuations in a paper  machine stock flow system for conducting stock from a supply pump to a slice opening including providing a flexible diaphragm as one wall of the stock conduit with the diaphragm dampening pressure variations and being supported on its opposite side by air in an air chamber divided into compartments with a support compartment immediately opposite the diaphragm and a supply compartment being the support compartment and the com-partments divided a by an attenuator wall. Air is supplied con-tinuously at a reference pressure to the supply compartment, and a relief valve is positioned in the support compartment with the port opened or closed by movement of the diaphragm so that air is bled from the support compartment as the diaphragm moves toward the stock conduit with a drop of pressure therein. In another form, the structure included a diaphragm wall between a distribution chamber of a headbox and an air chamber with a valve controlling the release of pressure from the air chamber and controlled by the position of the diaphragm.
Patent CA-1041767-A (CA)
Inventor: MORRIS WILLIAM J
IPC: B24B19/02
Filed: 1976-11-23
Granted: 1978-11-07
Abstract: GRINDING MACHINE FOR CARBIDE CUTTING ELEMENTS     ABSTRACT OF THE DISCLOSURE       A grinding machine particularly for grinding the teeth on a carbide cutter.  The machine includes a carriage swingably mounted on a frame for oscillation about a pivot axis.  The carriage has a grinding wheel mounted thereon and rotatably driven by a motor which is also mounted on the carriage.  The wheel is rotatable about an axis which is approximately parallel to but spaced from the pivot axis.  A feeding mechanism projects outwardly from the front face of the grinding wheel at an angle of approximately 45° relative to the rotational axis.  The feeding mechanism releasably supports a carbide element.  The feeding mechanism is linearly advanced toward the grinding wheel in an intermittent steplike movement which is synchronized with the oscillating movement of the carriage so that the grinding wheel cuts a groove across the carbide element during both the forward and return swings of the carriage.  The grooves cut in the carbide element form cutting teeth therebetween, which teeth have a rounded convex configura-tion due to the engagement of the carbide element with the grinding wheel at a location between the pivot and rotational axes.
Patent CA-1055459-A (CA)
Inventor: BOSTROEM THEODORE
IPC: B65H75/24
Filed: 1976-12-29
Granted: 1979-05-29
Abstract: Application of THEODORE BOSTROEM          Title:   WINDER DRUMS FOR STRIP SLITTING LINES     ABSTRACT OF THE DISCLOSURE        Apparatus for winding a plurality of metal strips on a non-collapsible drum to form a plurality of coiled strips.          In one form of the invention, the drum is formed with spaced slots in the periphery thereof in which are positioned rail members and interconnected wear members.  Core members are positioned loosely around the periphery of said drum for receiving the individual slit strips, and expansible hoses are positioned in each slot radially inwardly of the rail.  Fluid pressurization of the hoses functions to expand the same and force said rail and wear members radially out-wardly into frictional contact with the core means thereby creating tension in said metal strips and consequent tight winding of the narrow strips on the core means.  The pressure can be partially reduced to permit the tightly wound strip coils to slip on the drum surface and the loosely wound strips to continue rotation so as to remove the slack from the strips, thereby compensating for unequal thicknesses of the marginal and median strips.  In a further form of the invention, the hoses are positioned in the drum for direct pressure contact with the core members.
Patent CA-1091600-A (CA)
Title: USE OF CYCLIC CARBONIC ACID ESTERS AS SOLVENTS FOR POLY-(.beta.-HYDROXYBUTYRIC ACID)
Inventor: LAFFERTY ROBERT M
IPC: C07D317/36
Filed: 1977-01-13
Granted: 1980-12-16
Abstract: Abstract of the Disclosure The use of cyclic carbonic acid esters of the formula:                     wherein R1, R2, R3 and R4, which may be the same or different, are hydrogen or alkyl with 1 to 6 C-atoms, as a solvent for racemic or optically active poly-(.beta.-hydroxybutyric acid).         The preferred embodiment uses hot (120 to 150°C) ethylene carbonate or 1,2-propylene carbonate to extract poly-.beta.-hydroxybutyric acid) from moist or dry fermentation masses. These solvents have the advantage that the extracted poly-(.beta.-hydroxybutyric acid) is precipitated in good yield from them on cooling. In addition they may be recycled without the need for a solvent regeneration step.          These cyclic carbonic acid esters may also be used as the solvent in the processing of poly-(.beta.-hydroxybutyric acid) by e.g. wet spinning.
Patent CA-1077198-A (CA)
Inventor: BUJADOUX KAREL
IPC: C08F4/60
Filed: 1977-02-18
Granted: 1980-05-06
Abstract: A B S T R A C T      Ethylene is polymerised by contact at a temperature of between 180°C and 340°C and under a pressure of between 200 and 2,500 bars in at least one stirred reaction zone, with a catalyst system comprising (a) an activator which is an alkyl-aluminum or an alkylsiloxalane, and (b) a compound of the formula (TiCla) (MgCl2)y (AlCl3)z (RMgCl)b in which 2?a ?3,  y?2,  0?z ?1/3 and 0 ?b ?1, and R is an aliphatic or aromatic hydrocarbon radical, and the proportions of (a) and (b) are chosen so as to give an atomic ratio Al/Ti of between 1 and 10.
Patent CA-1054408-A (CA)
Inventor: LIPPACHER W
IPC: F16B13/12
Filed: 1977-02-18
Granted: 1979-05-15
Abstract: ABSTRACT OF THE DISCLOSURE           An impact dowel for insertion into a prepared bore hole in receiving material consists of an axially extending expansion sleeve and a spreading element insertable into the bore in the sleeve.  The expansion sleeve and spreading element each have a first end and an oppositely directed second end with the first end being inserted first into the bore hole.  The bore in the expanding sleeve has a pair of axially spaced restrictions which limit the axial displacement of the spreading element through the bore.  The second end of the sleeve has an outwardly directed shoulder and a connecting section adjacent to the shoulder.  The connecting section absorbs substantially only tensile forces.
Patent CA-1087994-A (CA)
Inventor: DULGER VIKTOR
IPC: B01D35/04
Filed: 1977-03-11
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a dirt filter for water pipes of the type used for carrying water for household and industrial use.  The filter defines inlet and outlet chambers with an apertured dividing wall there-between,  An upper lid and a lower dirt collecting container are attached with threaded connections to the housing.  A filter insert is disposed between the lid and the dividing wall and the insert has a carrier with upper and lower cylinder rings which respectively engage the lid and the chamber dividing wall.  The interior of the filter has fluid communication with the inlet chamber through the opening in the chamber dividing wall.          An annular, cup shaped insert keeps the flow in the inlet chamber away from the interior of the dirt collecting container but permits the drop of dirt into this container.