baber/WOPTO huggingface dataset:
Patent CA-2005982-A1 (CA)
Inventor: HARRIS ARTHUR
IPC: D21C3/22
Filed: 1989-12-19
Abstract: A process for inhibiting the formation of calcium carbonate scale in wood pulp production comprises adding to the pulp liquor 1-100 ppm of a hydrolysed copolymer of (A) maleic anhydride with (B) at least one mono-ethylenically unsaturated monomer other than acrylic acid or methacrylic acid or with a mixture of (B) and (C) acrylic acid or methacrylic acid.
Patent CA-2006515-A1 (CA)
Title: Scalp treatment composition
Inventor: YU HUA WANG
IPC: A61K8/00
Filed: 1989-12-22
Abstract: SCALP TREATMENT COMPOSITION                  ABSTRACT OF THE DISCLOSURE      A scalp treatment composition which promotes scalp and hair health and growth was developed in China and approved by medical authorities of the Peoples Republic of China. The com-position consists essentially of ginger, saffron, root bark of shaggy-fruited dittany, the roots of red-rooted salvia, cypress leaves, xiang tong (cinnamornum camphora (linn) sieb.)  , Chin-ese angelica, Sichuan chili, bezoar, artemisia argyi or Chinese mugworth, royal jelly, the dried rhizome of rehmannia, bear's gallbladder, lard, dragon's blood, gypsum, loess, radix, salt, tuber of multiflower knotweed, Chuan poshi (cudrania cochino-hinensis (lour) kudo et masam), blended together in a skin per-meating agent, e.g., cudrania trienspidata (carr) bur. Through survey and clinical observation, it was found that the effect-iveness of this composition to various alopecia reaches 96.82% and to hair loss caused by adipose ooze, 89.82%. The composi-tion is non-poisonous, non harmful and has no side-effect. This composition was the first to pass the inspection of the Chinese Cosmetic Inspection Law since its enactment.
Patent CA-2007911-A1 (CA)
Title: Synthetic detergent bars
Inventor: STEER FRANK J
IPC: C11D3/10
Filed: 1990-01-17
Abstract: A synthetic detergent bar containing a lime soap dispersant such as sodium cocyl  isethionate and an amount of sodium bicarbonate effective to slow the rate of dissolution of the bar in water, the bar having a water content of from about 3.5 to about 8%, by weight of the bar.  The bar is especially suitable for incorporation in a spongelike article,  for use in cleaning hard surfaces such as dishes and, depending on the texture of the substrate, in bathing.
Patent CA-2009114-A1 (CA)
Title: Process and apparatus for recovering reusable water from waste drilling fluid
Inventor: CLIFFORD JAMES III
IPC: C02F1/52
Filed: 1990-02-01
Abstract: ABSTRACT           A dewatering process and apparatus for recovering water from waste drilling fluid for concurrent reutilization in an active drilling operation includes a storage area, an intermixer for introducing treatment chemicals into the waste drilling fluid and a centrifuge.  Flocculation is chemically induced in the waste drilling fluid as it passes through the intermixing means for introducing treatment chemicals into the waste drilling fluid.  The waste drilling fluid is then transferred to the centrifuge wherein it is separated into solid waste and clear reusable water.  The water is returned to the storage area and may be chemically adjusted prior to being returned to the drilling rig.
Patent CA-2012179-A1 (CA)
Inventor: GROSSMAN MARK W
IPC: G01N21/39
Filed: 1990-03-14
Abstract: ON-LINE METHOD OF DETERMINING UTILIZATION     ABSTRACT OF THE DISCLOSURE     The present invention is directed to a method for determining the utilization factor [U] in a photochemical mercury enrichment process (196Hg) by measuring relative 196Hg densities using absorption spectroscopy.
Patent CA-2014011-A1 (CA)
Inventor: FREDRIKSEN NILS
IPC: A01D41/12
Filed: 1990-04-06
Abstract: Agricultural Carrier Vehicle ABSTRACT           The present invention relates to an agricultural carrier vehicle combining the features of a harvesting unit that can be coupled to the front end of the carrier vehicle, a saddle unit that can be mounted onto the vehicle, a driver's cab that can be transferred to different positions and a conveyor connecting the harvesting unit and the saddle unit.  Through this inventive com-bination it should be possible to quickly and reliably convert the vehicle for its various tasks while maintaining for the driver visibility conditions that are always constant.
Patent CA-2014486-A1 (CA)
Title: Antitumor and antibacterial substituted disulfide derivatives prepared from compounds possessing a methyltrithio group
Inventor: MCGAHREN WILLIAM J
IPC: C07H15/20
Filed: 1990-04-12
Abstract: This disclosure describes disulfide analogs of the family of antibacterial and antitumor agents known collectively as the LL-E33288 complex.
Patent CA-2016644-A1 (CA)
Inventor: HALAMODA HANS-JOACHIM
IPC: D04B35/02
Filed: 1990-05-11
Abstract: ABSTRACT OF THE DISCLOSURE A knitting tool, such as a selector sinker or a needle for a knitting machine, includes a flat shank and a narrow elongate control spring projecting from a slot-like opening in a narrow side of the shank.  One end of the control spring has a broader anchorage section at one end which is inserted into a recess provided at an inward end of the opening in the shank.  The width of the recess, measured transversely to the longitudinal extent of the opening, is greater, at least at certain locations, than the width of the opening.  The thickness of the anchorage section or the control spring is less than or equal to the depth of the recess.  As a result, the control spring is rigidly anchored in the shank in a manner secure against rotation.
Patent CA-2018698-A1 (CA)
IPC: H04Q11/04
Filed: 1990-06-11
Abstract: PRIVATE BRANCH EXCHANGE SYSTEM WITH ATTENDANT CONSOLE                 ABSTRACT OF THE DISCLOSURE       A private branch exchange system having connected thereto a telephone line of a public telephone network, a plurality of extensions, and at least one attendant console, comprising: an attendant console control circuit corresponding to each of the attendant consoles in a main frame of the private branch exchange system. A speech signal from a speech path exchange circuit and control signals are multiplexed at the attendant console control circuit to be sent through a transmission line to the corresponding attendant console, and a speech signal and control signals from the attendant console are multiplexed at the attendant console to be sent through a transmission line to the corresponding attendant console control circuit.
Patent CA-2022574-A1 (CA)
Title: Transparent polyblends
Inventor: BLASIUS WILLIAM G JR
IPC: C08L51/00
Filed: 1990-08-02
Abstract: A polyblend of a copolymer of an alkyl (meth)acrylate and a vinyl aromatic grafted on to a low molecular weight conjugated diolefin polymer with a terpolymer of a vinyl aromatic, an alkyl acrylate, and an alkyl methacrylate grafted on to a di- or tri-block polymer of vinyl aromatic monomers and a conjugated diolefins in a weight ratio from 10:90 to 40:60 have good flow rates and impact resistance.
Patent CA-2023754-A1 (CA)
IPC: E04B2/34
Filed: 1990-08-22
Abstract: The building block comprises spaced apart outer and inner concrete walls and a pair of tie members for interconnecting these two walls.  Each tie member has a first T-shaped end embedded into the concrete of the outer wall.  A solid and cubic body is made of wood and is fastened to a second end of each tie member.  For that purpose, each body has a hole therein, and the second end of each tie member is forked to define first and second branches embracing a portion of the body and having respective free ends bent to penetrate the hole through its two ends, respectively.  The cubic body defines edges having a length equal to the thickness of the inner wall, and it is embedded in the concrete of this inner wall with a surface thereof exposed on the two sides of the latter wall.   Nailing and/or screwing through the cubic body is therefore enabled from the outer side of the inner wall with the nails and/or screws extending in the space between the outer and inner walls.  Also, a wall constructed with building blocks in accordance with the invention comprises an inner, empty space that can be easily filled with loose fill insulation.
Patent CA-2026976-A1 (CA)
Title: Universal lattice for magnetic-electronic article surveillance system
Inventor: RUBERTUS ROLAND W
IPC: G01V3/10
Filed: 1990-10-04
Abstract: Abstract of the Disclosure A universal lattice assembly for use in a magnetic type electronic article surveillance system is disclosed which comprises a frame formed of two identical molded plastic half-shells, a metal chassis within which specific electronic sub-assemblies may be positioned and a coil assembly including a drive coil and a sense coil. The housing is adapted to enclose and to interlock and index the chassis, while also rigidly anchoring the coil assembly within an extensive cavity to prevent unwanted movement of the coil. A null adjustment mechanism within the frame enables a slight precise displacement of a coil to enble nulling of the two coils with respect to each other. Upon insertion of the coil assembly and chassis within the half-shells, the two are permanently pinned and bonded together to form an exceptionally rigid and durable composite lattice.   4.1.6
Patent CA-2029293-A1 (CA)
Title: Filling assembly for ice trays
Inventor: CHATTERTON PHILIP
IPC: F25C1/22
Filed: 1990-11-05
Abstract: LLP/4.262 FILLING ASSEMBLY FOR ICE TRAYS          Abstract of the Disclosure A water filling assembly for ice trays including a reservoir disposed in water delivering relation to each of a plurality of vertically  stacked  ice trays within a housing wherein the reservoir and trays are cooperatively structured to successively fill each of said trays from an uppermost one in the stacked arrays to a lower most one upon the selective passage of liquid from said reservoir to said trays.
Patent CA-2031187-A1 (CA)
Title: Radar camouflage material
Inventor: LOFGREN PER-AKE
IPC: H01Q17/00
Filed: 1990-04-10
Abstract: (57) Abstract In the manufacture of PVC cellular plastic, a liquid plastic mixture is admixed with fibres in an amount of at most 1 per-cent by weight fibres, preferably carbon fibres having a length of about I cm, which fibres are distributed in the expanded cellular plastic isotropically with respect to both position and alignment. The cellular plastic is effective to dampen electromagnetic radia-tion within the radar range to at least 1-3 dB per cm.
Patent CA-2032522-A1 (CA)
Inventor: BERGKVIST JAN A
IPC: H04Q3/52
Filed: 1990-05-03
Abstract: Dans une unité multiplan comportant trois plans électriquement identiques ayant chacun une première section de circuits électriques et une section finale de circuits électriques, chaque section ayant une entrée et une sortie, chaque section étant connectée en série avec chaque plan, et chaque section étant électriquement identique aux sections correspondantes des autres plans. Un signal de données est traité dans les sections correspondantes des trois plans et un signal de données traité est produit pour chaque signal de données. Chaque signal de données traité, ou chaque signal de données, est comprimé dans les sections correspondantes des trois plans et un signal de données comprimées est produit pour chacune de ces sections. Les signaux de données comprimées provenant des sections correspondantes sont comparés et un signal d'alerte est produit quand une différence est détectée entre eux. Dans la concrétisation privilégiée de l'invention, un signal de données préparé est engendré pour représenter la majorité des signaux de données traités transmis par chaque section finale. La présente invention porte sur un commutateur temporel numérique dont le matériel est installé sur plusieurs plans de travail parallèles. Ce commutateur temporel numérique est incorporé à un système de télécommunication à modulation par impulsions et codage et à multiplexage temporel. Cette invention vise à résoudre le problème technique posé par la détection et la localisation précise des erreurs ou des défaillance dans les unités multiplan.
Patent CA-2035055-A1 (CA)
Title: Methods for suppressing fugitive dust emissions
Inventor: ROE DONALD C
IPC: C09K23/12
Filed: 1991-01-28
Abstract: ABSTRACT OF THE DISCLOSURE         An improved aqueous dust control solution which includes a polyvinyl alcohol.  The improved solution may be spray applied or applied as a foam.  The solution may include cross-linking agents, extenders, plasticizers or surfactants.
Patent CA-2035310-A1 (CA)
IPC: B27C1/00
Filed: 1991-01-30
Abstract: A method serves for flattening logs (10) showing a curved longitudinal center line (10a). The logs (10) are conveyed in horizontal position in their longitudinal direction, with their convex side (11) up and their concave side (12) down. The concave side (11) of the logs (10) is flattened from below in the area of their butt ends (27). In order to optimize the yield in wood, the logs (10) are measured, before carrying out the flattening step, in a position where they are supported on a reference plane (13) by the end points (20, 22) of their concave side (12) only. The geometrical position of a first point (26) of the log (10) is determined on the convex side (11) as its elevation above the reference plane (13). The butt end (27) of the log (10) is then lowered, while keeping the end point (20) opposite the butt end of the log constantly in contact with the reference plane (13), until the first point, which defines the lowest point between the said highest elevation (23) and the said butt end (27) on the said convex side (11), comes to lie at a level above the reference plane (13) which corresponds to the diameter (do) of the said log (10) at its end opposite the said butt end. Thereafter, the logs (10) are flattened in this lowered position up to the reference plane (13)
Patent CA-2035773-A1 (CA)
Inventor: WOODWARD WILLIAM S
IPC: G01F1/66
Filed: 1991-02-06
Abstract: Fluid flow along a fluid path is determined by measuring the travel time between two transducers of two oppositely travelling acoustic burst waves. A pair of phase reference signals in phase quadrature are compared with the signals received by each transducer to determine the phase difference therebetween. The phase difference values are used to calculate the flow velocity.      After each phase difference determination has been made, the transducer drive signals are adjusted so that the launch time of the next pair of burst waves reduces the phase difference between the previously received signals and the phase reference to zero in the absence of any changes in flow velocity. The duration of each acoustic burst is sufficient to ensure that a predetermined number of successively received cycles in each burst are used in the phase comparison process.
Patent CA-2035939-A1 (CA)
Inventor: MEUNIER CHRISTIAN
IPC: G01S7/02
Filed: 1991-02-07
Abstract: Microwave system for remote data transmission, of the type comprising at least one reader (L) associated with a plurality of transponders (R), the reader (L) including means of generating a microwave having a certain linear polarisation, whereas each transponder (R) is provided with a flat rectangular retransmission antenna (1) able to receive the said microwave and retransmit it in accordance with an orthogonal polarisation with a two-state phase modulation representing the information to be transmitted to the reader (L), characterised in that the phase modulation is obtained by means of two transistors (Qa, Qb) connected respectively to two adjacent corners (a, b) of the antenna (1), these two transistors being alternately blocked and saturated in time with the information to be transmitted, by complementary control signals output by an appropriate processing unit (4), so as to alternately short-circuit the corresponding corner of the antenna. 
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Patent CA-2040798-A1 (CA)
Title: Facilitated liquid membranes for olefin/paraffin gas separations and related process
Inventor: TSOU DEAN T
IPC: C07C11/02
Filed: 1991-04-18
Abstract: ABSTRACT OF THE DISCLOSURE A facilitated liquid membrane for the separation of olefins from a gaseous feed stream comprises a porous support structure (10, 15) and a liquid membrane which comprises an aqueous solution containing a metal salt facilitatorcapable of coordinating with olefin gases, and an alkyl carbonate co-solvent. A process for the separation of olefins from gaseous feed streams comprises the steps of passing a gaseous feed stream over one side of a facilitated liquid membrane according to the present invention and collecting the olefins on the other side of the membrane.
Patent CA-2041276-A1 (CA)
Title: Easy adaptor
Inventor: WATERMAN JOHN S
IPC: F02B61/04
Filed: 1991-04-25
Abstract: ABSTRACT          In  the  line  connection  from  an outboard engine to a gasoline supply tank, all connectors at the  gas tank  have the  same size thread (1/2  inch).  All present auxiliary gas cans or jerry cans have the same size outlet regardless of capacity.  This invention is a specially designed adaptor which connects an outboard engine to its fuel supply.
Patent CA-2042260-A1 (CA)
Inventor: YAMADA MITSUTAKA
IPC: H05K7/20
Filed: 1991-05-09
Abstract: IMMERSION COOLING COOLANT AND ELECTRONIC         DEVICE USING THIS COOLING     ABSTRACT OF THE DISCLOSURE      A coolant for cooling a semiconductor element by direct immersion, cooling, which has an improved cooling capability, is disclosed.  The coolant comprises a low boiling point fluorocarbon having a boiling point of 30°C to 100°C and a high boiling point fluorocarbon having a boiling point higher than that of the low boiling point fluorocarbon by at least 100°C; an amount of the high boiling point fluorocarbon being less than 20% by volume, based on the volume of the low boiling point fluorocarbon.
Patent CA-2043001-A1 (CA)
Title: Cover assembly and pre-filter for a respirator
Inventor: POUCHOT THOMAS D
IPC: A62B23/02
Filed: 1991-05-22
Abstract: ABSTRACT OF THE DISCLOSURE           The  present invention provides a cover assembly and pre-filter for use with a high-efficiency  particulate filter  of  a  respirator.   The semi-rigid cover assembly fits  easily   and   snugly   over   the   high-efficiency particulate  filter  and  remains in place due to friction between the edges of the ribs located on the inside of the cover  housing  and  the  sides  of  the  high  efficiency particulate filter.  In this position,  the  ribs  hold  a removable  pre-filter  against the front face of the high-efficiency particulate  filter  while  the  cover  housing protects   both   the   pre-filter   and   high-efficiency particulate   filter.  This   arrangement   allows   the inexpensive   pre-filter   which   traps   large  diameter particulate matter, thereby extending the life of the more costly   high-efficiency   particulate   filter,   to   be frequently and easily replaced.
Patent CA-2045138-A1 (CA)
Title: Process for the introduction of exogenous dna in somatic and germ animal cells
Inventor: SPADAFORA CORRADO
IPC: C12N15/87
Filed: 1990-01-08
Abstract: PROCESS  FOR  THE INTRODUCTION OF EXOGENOUS DNA IN SOMATIC AND  GERM          ANIMAL CELLS                              ABSTRACT          A  process  is described for the introduction of exogenous DNA  into somatic  and  germ animal cells:  the  DNA,  exogenous  or  modified according to known techniques of recombinant DNA, is introduced into the animal spermatozoa which are to be modified and said spermatozoa are  employed  for egg fertilization according to  usual  artificial fertilization techniques.
Patent CA-2045256-A1 (CA)
Title: Chalcone, their preparation process and the pharmaceutical compositions containing them
Inventor: LESIEUR DANIEL
IPC: A61P3/06
Filed: 1991-06-21
Abstract: Anti-inflammatory and antioxidant compounds of formula (I): 
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 in which:
 R1 represents a hydrogen atom or a lower alkyl radical,
 X represents:
  &cirf&  an oxygen or sulphur atom,
  &cirf&  a CH group, on condition that, in this case, Y represents an oxygen or sulphur atom,
 Y represents:
  &cirf&  a single bond or a group CR7R8, where R7 and R8, which may be identical or different, represent, independently of one another, a hydrogen atom, a lower alkyl group, a phenyl group, a substituted phenyl group, a phenylalkyl group or a substituted phenylalkyl group,
  &cirf&  an oxygen or sulphur atom, on condition that, in this case, X represents a CH2 group,
 Z represents either a hydrogen atom, and in this case T also represents a hydrogen atom, or Z forms with T an arrangement -(CH2)-CH(E)- or (CH2)n-CH(CH2E') with n an integer equal to 0, 1, 2 or 3, on the understanding that, in this case, Z is attached to a carbon atom next to the carbon atom to which the acyl group is attached, and E or E' represents a hydrogen atom, a lower alkyl group, a phenyl or heteroaryl group, or a substituted phenyl or substituted heteroaryl group,
 R2, R3 and R4, which may be identical or different, represent, independent of one another, a hydroxyl or lower alkoxy group or a lower alkyl group.
Patent CA-2045453-A1 (CA)
Title: Condensed heterocyclic compound and psychopharmaceutical composition containing same
Inventor: TATSUOKA TOSHIO
IPC: C07D401/06
Filed: 1991-06-25
Abstract: A condensed heterocyclic compound having the formula (I):    wherein A and B are both carbonyl groups or one thereof represents a methylene group and the other represents a carbonyl group; Z represents an oxygen atom, a sulfur atom, a substituted or unsubstituted nitrogen atom, or a methylene group; n is an integer of 2 to 6; and R represents a group having the following formula:    wherein R1 represents a hydrogen atom or a hydroxyl group; R2 represents a substituted or unsubstituted phenyl or 2-pyridyl group or salts thereof. The compounds according to the present invention exhibit a strong affinity to the .sigma.-receptor and are useful as psychopharmaceuticals.
Patent CA-2049543-A1 (CA)
IPC: E06B9/11
Filed: 1991-08-22
Abstract: A track system for an operable wall includes carriage assemblies for partitions or operable wall sections including at least four wheels per assembly, the wheels being mounted on vertical shafts and having beveled lower surfaces for cooperating with beveled riding track surfaces integrally and conformably supported by support brackets.
Patent CA-2049826-A1 (CA)
Title: Method for reducing scalp staining
Inventor: BROWN KEITH C
IPC: A45D19/00
Filed: 1991-08-26
Abstract: ABSTRACT OF DISCLOSURE     The present invention provides an improvement in a process for dyeing hair on a live head wherein the hair is treated with metal  ion  in a pretreatment  step to accelerate subsequent dyeing of the hair and the treated hair is then subjected to an oxidative or autooxidative dyeing step.  The invention serves to reduce staining of the scalp occasioned by the dyeing step.   The improvement comprises: (1) between the pretreatment step and the dyeing step the scalp of said live head is subjected to vigorous massage, rubbing, combing or brushing, for a time sufficient to reduce staining of the scalp occasioned by the dyeing step; or (ii) sufficient time is permitted to elapse between the pretreatment step and the dyeing step to reduce staining of the scalp occasioned by the dyeing step: or (iii) between the pretreatment step and the dyeing step the scalp of said live head is subjected to vigorous massage, rubbing, combing or brushing, and time is permitted to elapse between the pretreatment step and the dyeing step, the duration of the massage rubbing, combing or brushing coupled with the duration of the elapsed time between the pretreatment and dyeing steps being sufficient to reduce staining of the scalp occasioned by the dyeing step.