baber/WOPTO huggingface dataset:
Patent CA-2001939-A1 (CA)
Inventor: TSEUNG LAWRENCE C N
IPC: H04L12/18
Filed: 1989-10-31
Abstract: ABSTRACT OF THE DISCLOSURE      A system that guarantees reliable data transmission for one-to-many and/or many-to-many communications amongst data processing stations includes several dedicated functions/stations distributed across a communications network.  One or more general participant stations connected to a shared communications facility (e.g., a communications network) serves as a source and/or destination of information.  A retransmission station receives input data from the general participant stations on a one-to-one basis, generates a special message header, and retransmits the message on the network. A designated recorder station ensures messages sent from the retransmission station are correct.  This designated recorder station effectively communicates with the retransmission station on a one-to-one basis over the network, detects missed or corrupted messages, and can request the retransmission station to resend again.  The designated recorder station also acknowledges reception of messages from the retransmission station.  A playback recorder station listens to and stores the messages from the retransmission station either entirely or selectively.  If this station detects missing or corrupted messages, it obtains the correct information from the designated recorder station using one-to-one communications.  If a general participant station detects missing or corrupted messages, it obtains the correct information from this playback recorder station using one-to-one communications.  A powered off general participant station can regain all the missed messages from the playback recorder station.  An optional management station controls orderly start and stop of group communications or conferences and may also handle secure, confidential communications. Examples are provided to show how this guaranteed, reliable, one-to-many or many-to-many system can be applied to overcome previously unsolved problems.
Patent CA-2004287-A1 (CA)
Title: Peptides
Inventor: DUNCAN RICHARD J S
IPC: C07K16/00
Filed: 1989-11-30
Abstract: ABSTRACT            A synthetic peptide of up to 30 amino acids which contains a  sequence of the formula X1  X2 WGC wherein  X1 and X2  each represent an  amino acid residue; which are capable of binding to antibody specific for  a type of HIV;  in which  the terminal  carboxy group  is optionally in amide form and the sulphydryl group of  the or each C is blocked,  and its use in diagnostic assays.
Patent CA-2007208-A1 (CA)
Title: Composite material with multiple interphases between refractory reinforcing fibers and ceramic matrix
Inventor: COTTERET JACQUES
IPC: C04B35/80
Filed: 1990-01-05
Abstract: A  layer  (16) forming interphase in a material having  a lamellar  structure is situated between the fibers of  the  texture and  the  matrix,  and  at least one  layer  (14)  forming  control interphase  is situated between the surface of the fibers (10)  and the  lamellar interphase (16) in such a way as to define, for those cracks which have spread through the matrix (18) and the  lamellar interphase  (16), a preferential propagation zone away from  direct contact with the actual fibers (10).
Patent CA-2009201-A1 (CA)
Title: Anti-inflammatory aryl derivatives
Inventor: JACKSON WILLIAM P
IPC: A61P9/10
Filed: 1990-02-02
Abstract: ABSTRACT                   Anti-inflammatory aryl derivatives The present inventions concerned with compounds of formula (I)                    (I) wherein Ar is 4- halophenyl;            Ar' is 1,3- or 1,4-phenylene;            Y is (E)CH=CH-; and R1 and R2 are independently selected from hydrogen and C1-4 alkyl; and base  salts and  physiologically functional  derivatives  thereof, processes   for   their   preparation,   pharmaceutical   formulations containing them and, optionally, one or more other pharmacologi-cally active ingredients and the use of these compounds in medicine.     WMD/JJ/12th January, 1990.
Patent CA-2010705-A1 (CA)
Title: Locomotive differential wheel slip control
Inventor: EVANS RAYMOND G
IPC: B61C15/08
Filed: 1990-02-22
Abstract: Abstract of the Disclosure LOCOMOTIVE DIFFERENTIAL WHEEL SLIP CONTROL           Differential wheel slip control is desirable in a locomotives having wheels driven by a plurality traction motors which receive power from an engine (16) driven generator.  Wheel slip control in known systems involves increased cost and complexity resulting from sensors required to determine an actual locomotive or individual traction motor speeds.  In the subject invention a microprocessor under software control is used to detect and control differential wheel slip.  A difference signal is generated in response to a difference between the highest and lowest individual traction motor currents.  A first-order-lag of the actual locomotive speed is calculated and compared to the difference signal.  If the compared signals differ by more than a preselected reference, a differential slip condition exists and the generator power is reduced by a preselected magnitude.  Generator power is continually reduced until the slip condition no longer detected.
Patent CA-2011024-A1 (CA)
Title: Polybutadiene golf ball product
Inventor: GENDREAU PAUL M
IPC: A63B37/04
Filed: 1990-02-27
Abstract: POLYBUTADIENE GOLF BALL PRODUCT                  Abstract of the Disclosure The golf ball product is made from two polybutadienes, each having a Mooney viscosity of below about 50 and a cis-1,4 content of greater than about 40%.  One polybutadiene is nickel- or cobalt-catalyzed, while the other is lanthanide-catalyzed.  The golf ball product includes a mix of the two polybutadienes, a metal salt of an unsaturated carboxylic acid and a free radical initiator.
Patent CA-2013947-A1 (CA)
Title: Use of discrete (on-off) feather signal to govern propeller overspeed
Inventor: SCHNEIDER ROY W
IPC: F02C9/58
Filed: 1990-04-05
Abstract: ABSTRACT OF THE DISCLOSURE    A propeller overspeed governor  logic  and  control  is described in this invention.  A method is shown for providing a variable propeller pitch rate from a discrete pitch command to improve governing dynamic characteristics.
Patent CA-2015397-A1 (CA)
Title: Hair treatment composition
Inventor: KAJEE AMIRUDEEN
IPC: A61K8/65
Filed: 1990-04-25
Abstract: ABSTRACT                 Hair treatment composition A hair treatment composition is disclosed which comprises a detergent active compound, a cationic conditioning agent, and a reducing agent which is capable of breaking disulphide bonds in the hair.   The reducing agent is preferably chosen from thiols, mercaptans, sulphites, bisulphites or mixtures thereof.      The product may be a liquid shampoo composition or a solid bar product.
Patent CA-2017082-A1 (CA)
Inventor: YOSHIDA NORIYUKI
IPC: H01B13/00
Filed: 1990-05-17
Abstract: Disclosed herein is a method of and an apparatus for fabricating an oxide superconducting wire which comprises a tape-type long base material and an oxide superconducting film formed thereon. The oxide superconducting film is formed by laser ablation of applying a laser beam onto a target while translating a long base material along its longitudinal direction and depositing atoms and/or molecules scattered from the target on the base material.
Patent CA-2017190-A1 (CA)
Inventor: SPALECK WALTER
IPC: C08F10/02
Filed: 1990-05-18
Abstract: Process for the preparation of ethylene polymers The preparation of polyethylene and ethylene-1-olefin copolymers in the suspension or gas phase process with the aid of metallocene/aluminoxane catalysts whose metallocene component is a bridged biscyclopentadienyl complex offers particular advantages.      Depending on the structure of the complex, the use of these complexes gives, with high activity, products in a very broad molecular-weight range and permits the production of very varied grain morphologies of the products, such as high and low bulk density, extremely small and extremely large mean grain diameters and various grain shapes. The variety of grain morphologies which can be achieved opens up various possibilities for the use of such polyethylene powders in sintering processes.
Patent CA-2017566-A1 (CA)
Title: Ensemble de valve pour emballage de fluide sous pression et emballage equipe d'un tel ensemble
Inventor: POLITI JEAN-MARIE
IPC: F16K35/00
Filed: 1990-05-25
Abstract: L'ensemble de valve pour emballage perdu comporte un boîtier de valve renfermant un clapet principal et un clapet auxiliaire initialement maintenu en position d'ouverture par un verrouillage élastique qui est déverrouillé, en fin d'un premier remplissage, par un déplacement du clapet principal au-delà de sa position d'ouverture normale sous l'action d'un robinet de remplissage à course longue. Le clapet auxiliaire est alors plaqué en appui sur son siège par un ressort à faible tarage. Toute dépression de soutirage provoque l'ouverture du clapet auxiliaire, alors que toute surpression de remplissage se heurte au clapet auxiliaire en position de fermeture. Ce système élimine la possibilité d'un quelconque remplissage ultérieur par un utilisateur.
Patent CA-2018500-A1 (CA)
Inventor: ALDRICH CHARLES S
IPC: G03G15/08
Filed: 1990-06-07
Abstract: A developer apparatus for use in an electrostatic reproduction  apparatus  includes  a  large  reservoir  of toner.  The toner is located in a supply chamber and is metered to a developer roller chamber from which it is carried by a developer roller past a doctor blade to a photoconductor  drum  for  image  development.   A  toner metering roller  rotates with the developer  roller to provide a continuous  supply of toner from the  supply chamber to the developer chamber.  Once an equilibrium level  is  reached,  the  toner metering  roller  acts  to remove toner from the developer chamber to the supply chamber  to  insure  proper  operation  of  the  developer roller.
Patent CA-2020484-A1 (CA)
Inventor: AIKAWA KAZUO
IPC: C22C45/00
Filed: 1990-07-05
Abstract: The present invention provides high strength magnesium-based alloys which are composed of a fine crystalline structure, the alloys having a composition represented by the general formula (I) MgaXb; (II) MgaXcmd (111) MgaXcLne; or (IV) MgaXcMdLne (wherein X is one or more elements selected from the group consisting of Cu, Ni, Sn and Zn; M is one or more elements selected from the group consisting of Al, Si and Ca; Ln is one or more elements selected from the group consisting of Y, La, Ce, Nd and Sm or a misch metal of rare earth elements; and a, b, c, d and e are atomic percentages falling within the following ranges: 40 ~ a ~ 95,5 ~ b ~ 60,1 ~ c ~ 35,1 ~ d ~ 25 and 3 ~ e ~ 25). Since the magnesium-based alloys have a superior combination of properties of high hardness, high strength and good processability, they are very useful in various industrial applications.
Patent CA-2024420-A1 (CA)
Title: Silver halide color photographic light-sensitive material
Inventor: NISHIJIMA TOYOKI
IPC: G03C7/392
Filed: 1990-08-31
Abstract: Abstract of the invention:       A  silver  halide  color  photographic  light-sensitive material  having an  improved  light-fastness  of  magenta  dye image is disclosed.   The photographic material has a silver halide emulsion layer containing a magenta coupler represented by the following formula  [I],  a compound by the following formula  [II]  and  a  compound represented by the  following formula [III]:           [I]            [II]           [III]
Patent CA-2026970-A1 (CA)
Inventor: FERNANDO QUINTUS
IPC: C01F17/00
Filed: 1990-10-04
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a process for the rapid, high yield conversion of select rare earth oxides or hydroxides, to their corresponding carbonates by contact with supercritical carbon dioxide.
Patent CA-2027937-A1 (CA)
Title: Substituted 5-¬ (tetrazolyl)alkenyl|imidazoles
Inventor: KEENAN RICHARD M
IPC: C07D403/14
Filed: 1990-10-18
Abstract: ABSTRACT OF THE DISCLOSURE SUBSTITUTED 5-[(TETRAZOLYL)ALKENYL]IMIDAZOLES          Angiotensin II receptor antagonists having the formula:                           which are useful in regulating hypertension and in the treatment of congestive heart failure, renal failure, and glaucoma, pharmaceutical compositions including these antagonists, and methods of using these compounds to produce angiotensin II receptor antagonism in mammals.
Patent CA-2029451-A1 (CA)
Title: Insecticidal toxins in plants
Inventor: BARTON KENNETH A
IPC: A01H5/00
Filed: 1990-11-07
Abstract: INSECTICIDAL TOXINS IN PLANTS                         Abstract Transgenic plants have been created which express an insect-specific toxin from a scorpion.  The chimeric inheritable trait produced conditions of toxicity in the plant cells of toxicity to certain insects upon ingestion of plant tissues.  The inheritable trait has also been cross-bred to plants transgenic to the Bacillus thuringiensis delta-endotoxin to produce plants having two independent insect-specific toxin traits.          Insect feeding trials revealed additive toxic effects.          A generalized approach for developing other insecticidal toxins as candidates for insertion into transgenic plants is also presented.
Patent CA-2029517-A1 (CA)
Inventor: SHOUJI HIROAKI
IPC: C08L83/04
Filed: 1990-11-07
Abstract: The present invention provides a silicone antifoaming agent composition excellent in the persistence of the foam controlling effect.  The silicone antifoaming agent composition comprises a polydiorganosiloxane and silica, which form an antifoaming agent to be improved, and 4 to 2,500 parts by weight per 100 parts by weight of the sum total of the polydiorganosiloxane plus silica of a modified silicone oil having at least one organic group bonded to a silicon atom and having at least one functional group selected from among epoxy, amino, amide, carboxyl, alkoxyl and hydroxyl groups and at least one substituted or unsubstituted polyoxyalkylene group bonded to a silicon atom.
Patent CA-2030454-A1 (CA)
IPC: C21D9/56
Filed: 1990-11-21
Abstract: Strip elongation in a continuous annealing furnace is controlled by passing the strip around a first driven roll, thence through a portion of the furnace, thence around a second driven roll, wherein the amount by which the peripheral speed of the second roll exceeds the peripheral speed of the first roll is controlled in order to control strip elongation.  Strip elongation is determined by sensing strip width decrease between separated locations within the furnace. This eliminates the need to measure the strip load.
Patent CA-2031332-A1 (CA)
Title: Process for measuring and controlling the concentration of alumina in the electrolytic cells for aluminum production
Inventor: GREGU FRANCA
IPC: G01N31/00
Filed: 1990-12-03
Abstract: PROCESS FOR MEASURING AND CONTROLLING THE CONCENTRATION OF  ALUMINA  IN  THE ELECTROLYTIC  CELLS  FOR  ALUMINUM PRODUCTION   ABSTRACT Process  for  the rapid measurement and control of  the concentration of alumina in the electrolytic bath  used for  the production of primary aluminum,  which process consists  in mixing a finely ground and metered  sample of bath with graphite,  heating the so obtained mixture up  to a temperature of at least 2050°C in the  absence of   oxygen  and/or  oxygen-containing   products   and quantitatively measuring the content of CO contained in the  gases  developed  by the  reaction,  which  CO  is univocally   correlated   with  the  concentration   of alumina. Said  process is also accomplished in continuous  mode, and  makes  it possible an automated operation  of  the electrolytic cell to be accomplished.
Patent CA-2034264-A1 (CA)
Title: Method for identifying hydrocarbon-bearing zones in subsurface formations
Inventor: WILLIAMS DONALD M
IPC: G01V1/28
Filed: 1991-01-16
Abstract: A B S T R A C T      METHOD FOR IDENTIFYING HYDROCARBON-BEARING       ZONES IN SUBSURFACE FORMATIONS      A compressional-to-shear wave velocity ratio is measured in a subsurface sandstone formation.  Ratios of compressional-to-shear wave velocity are determined over a plurality of shear wave travel times in water-bearing sandstone and shale.  The subsurface sandstone formation is identified as being hydrocarbon-bearing when the measured compressional-to-shear wave velocity ratio in the subsurface formation is less than an identified minimum of the compressional-to-shear wave velocity ratios determined for water-bearing sandstone and shale.
Patent CA-2034534-A1 (CA)
Title: Blood testing and fingerprint identification method and device
Inventor: GUIRGUIS RAOUF A
IPC: G01N33/94
Filed: 1991-01-18
Abstract: ABSTRACT OF THE DISCLOSURE A  method  and  device  for  tasting  for  the presence of  substances such as drugs in the blood while simultaneously positively identifying the test subject.  The device  comprises  an  absorbent  pad  and  a  nitrocellulose membrane  mounted  to  the  absorbent pad  containing  a plurality  of  separated  areas  provided  with  different absorbed  antibody  having  a  specific  receptor  site  for specific antigens produced by  different predetermined drugs and a base area without antibodies.          The method of testing comprises the steps of:          (a)  puncturing the finger of a test subject to obtain a quantity of blood on the finger,  (b) covering the finger with  a thin film of blood,  (c)  placing the finger on a membrane containing antibodies specifically selected to bind antigens produced by the substances being tested for in the blood so that blood is deposited from the finger on the membrane;  and (d) adding color development solution to the membrane  to  bring  out  a   color  indicating  presence  or absence of a substance.
Patent CA-2035783-A1 (CA)
Title: Articles of play for use in the game of catch
Inventor: LEE MIRYOUNG
IPC: A63B67/00
Filed: 1991-02-06
Abstract: ABSTRACT       Articles of play for use with the game of catch including a ball covered with VELCRO like material and a multi-layer catcher's mitt with a front layer also covered in mating VELCRO like material.  The multi-layer mitt includes a rigid concave rear layer, a first intermediate flexible layer, a second intermediate flexible layer, and said front layer of VELCRO like material.
Patent CA-2037055-A1 (CA)
Title: Method for filling compressed gas packages as well as a compressed gas package
Inventor: MAIER HANS E
IPC: B65D83/34
Filed: 1990-07-19
Abstract: A B S T R A C T :     The invention concerns a method for filling compressed gas packages, aswell as the compressed gas packages themselves, which consist of a casing (1) which contains a pressure medium and of at least one flexible bag (2) located therein which is used for holding the substance to be inserted, whereby the inside of the flexible bag (2) is sealed by means of a valve (6) which is placed in the area of the orifice (4) of the casing (1). In order to further improve the above method as well as the accompanying compressed gas package to the extent that not only any pressure medium desired, in particular air, can be used, but also conventional commercial containers, and the entire filling operation can be carried out in a comparatively short time and, as a result, at correspondingly slight expense, it is proposed by the invention that the flexible bag (2) be mounted in the casing (1) in such a way that there is a space (5) between the bag's opening edge (3) and the orifice (4) of the casing (1), that the pressure medium is inserted through the space (5) between the opening edge (3) of the bag (2) and the orifice (4) of the casing (1), that the opening edge (3) of the bag (2) together with the valve (6) is tightly sealed with the orifice (4) of the casing (1), that the valve (3)[sic] is operated to evacuate the interior of the bag (2) and that, after the valve (6) is again operated, the contents are filled into the bag (2) under pressure.  To evacuate the bag (2) interior, a vacuum is attached to it.  The flexible bag (2) is made like a bellows in such a way that its folds fold inward (Figure 1).
Patent CA-2037288-A1 (CA)
Inventor: YOSHIDA IKIO
IPC: H04B1/16
Filed: 1991-02-28
Abstract: A power source control system for an automobile telephone. The system allows the telephone to be used even when the engine of an automobile carrying it thereon is in a halt, with no regard to the kind of the ignition switch, i.e., whether the ignition switch has an accessory position or not.
Patent CA-2037330-A1 (CA)
Inventor: GOETZ WOLFGANG
IPC: B30B7/02
Filed: 1991-02-28
Abstract: A forming and feeding assembly for a sheet material press is disclosed.  The assembly is intended for use in the production of decorative or industrial laminates of fibre-reinforced resin systems and for the finishing of chipboards, fibreboards and the like with a layer of synthetic resin.  The apparatus includes an assembly table for layering the laminate components to form a mat of material to be compressed, the mat having a generally rectangular layout.  The assembly further includes a selectively hoistable transfer platform that is positioned between the assembly table and the sheet material press and feeder arms that are reciprocally movable along the opposite edges of the sheet material press and the transfer platform.  A transfer bridge is reciprocally movable between the assembly table and the transfer table for moving a mat from one to the other.  Mats of material to be compressed are assembled on the assembly table. The layering of the mats is easily carried out on the assembly table without interference by the feeder arms.  Cycle times are no longer dependent on the time required for assembling a mat, but rather on the pressing time.
Patent CA-2037571-A1 (CA)
Title: Seal for civil engineering works and process for manufacturing it
Inventor: BECKER ANNETTE
IPC: E04B1/66
Filed: 1991-03-05
Abstract: ABSTRACT OF THE DISCLOSURE:            A seal for civil engineering works such as industrial basins, tubs, industrial floors, or the like with a sealing layer cemented to a solid structural sublayer such as concrete with a fine layer, made of plate-like elements of corrosion-resistant metals, with the seams of adjoining elements being made with expansion areas and being tightly connected together continuously and possibly having tubular test lines for monitoring leaks in the expansion area.  The expansion areas of the plate-shaped elements formed at seams and lengthwise seams being made differently and by at least crosswise  seams  being  laid  in  element  plane  and corresponding expansion area below the element plane and lengthwise seams and crosswise seams being welded under a protective gas.   In the expansion areas formed by edge strips of elements bent upward or downward, there are perforated test lines or, in the lengthwise seams disposed in the element plane below the element plane, there is a strip with a hat-shaped cross section abutting elements with a middle rib and covering lengthwise seam.  The strip is made of corrosion-resistant material with two mutually parallel lengthwise grooves formed on middle rib,  forming test lines.
Patent CA-2038465-A1 (CA)
Inventor: CULP GORDON W
IPC: H02N2/10
Filed: 1991-03-18
Abstract: ABSTRACT OF THE DISCLOSURE    A rotary motor uses a plurality of radially acting piezoelectric actuators to impart rotation to a motor shaft having surface undulations.  Electrical charge distributed to the actuators causes radial actuator motion resulting in contact between the actuators and the sloped sides of the shaft undulations.  The slope of each undulation transforms the radial force into tangential force that rotates the shaft.  The slope of the shaft undulations provides a mechanical advantage that transforms the slow radial speed of the actuators into greater shaft rotational speed.  The shaft undulations can be made in any desired or easily fabricated shape.  The electrical actuation control signals can be modified electrically to produce appropriate radial actuator motion to match the undulations of the shaft.  Electric charge can be shared among actuators by using switches or other circuitry.  Efficiency can be increased further by using acoustic excitation and by using rollers for contact between the actuators and the shaft.