baber/WOPTO huggingface dataset:
Patent CA-2013082-A1 (CA)
IPC: G10H7/00
Filed: 1990-03-26
Abstract: ABSTRACT OF THE DISCLOSURE         This invention is concerned with pitch shift apparatus for converting an audio signal into PCM digital data and then making a pitch shift, wherein the PCM digital data is written in a ring memory by a write address generator circuit, and read therefrom by two read address generator circuits which start to read at time points differing by an amount corresponding to 1/2 the ring memory at a certain pitch, in which case immediately before the read address on the now finally outputting side and the write address causes passing or cyclic delay, the read address on the switching-to side is stopped from increasing during the interval from a time point at which an audio signal on the switching-to side makes zero crossing to a time at which an audio signal on the now outputting side makes in-phase zero crossing, and switching is made at the zero crossing point, so that the connection of the audio signals can be smoothly made without such AM modulated component as caused in the cross fade method, enabling high-quality pitch shift to be achieved.
Patent CA-2013390-A1 (CA)
Title: Exchanges
Inventor: DYER NIGEL PAUL
IPC: H04Q3/68
Filed: 1990-03-28
Abstract: ABSTRACT            IMPROVEMENTS IN OR RELATING TO EXCHANGES      An electronic cross connect frame for an exchange or a multiple therefor is provided in which an analogue access matrix is provided for providing a limited number of spare cards or different cards to which any of the lines may be switched to provide a"sparing" or alternative services.
Patent CA-2013603-A1 (CA)
Inventor: PORTER ANTHONY
IPC: G01N33/98
Filed: 1990-04-02
Abstract: - ABSTRACT -A dual breath analysis device having a passive first mode of testing and analysing an exhaled breath sample without the use of a mouthpiece  and a second mode of testing and analysing a second breath sample through a mouthpiece apparatus when the first mode of testing indicates a substantially high level of alcohol in the first breath sample.     nas/28y
Patent CA-2014124-A1 (CA)
Title: Plop
Inventor: MALCOFF PEARL
IPC: B26B27/00
Filed: 1990-04-09
Abstract: ABSTRACT          The article which I, Pearl Malcoff, have invented and which is entitled "PLOP", an easy to remember name, which is an opener for small plastic-covered packages.  It is to be made of one-piece plastic 2?" long by ?" thick, and is formed somewhat in the shape of a grappling hook, with the very small sharp point turned in-wards, to avoid injury to the hands of the user, and damage to pockets, purses, etc.  It can be kept anywhere in the home or office, and can be carried anywhere by a person.  It has a small ring at the top, which can be attached to a key ring.  It would be a boon to small children whose hands are not sufficiently devel-oped to open small plastic-covered articles; to Senior citizens whose hands may be arthritic or trembling, or to those who cannot see well, and in fact to all average individuals to save time, breakage, and frustration.  The retail cost would be under $2.00, a price affordable to every individual.
Patent CA-2015555-A1 (CA)
Title: Method of treating human eyes and a composition therefor
Inventor: KASPAR HANS H
IPC: A61K31/195
Filed: 1990-04-26
Abstract: ABSTRACT A method for the treatment of the human eye and an ocular  lens  treatment composition wherein an aqueous solution having as an active ingredient an effective amount of D-penicillamine disulfide is utilized.   Such solutions are stable at room temperature for at least six months.
Patent CA-2016323-A1 (CA)
Title: Culvert attachment for water flow and beaver control
Inventor: NOONAN JOHN P
IPC: E03F7/06
Filed: 1990-05-09
Abstract: ABSTRACT           Highway and railroad culverts, with or without modification, have been susceptible of being blocked by the natural instincts and industry of beavers, causing flooding and conditions hazardous to human life.  In this invention, the culvert opening is modified by the up-stream excavation of a catch basin and the attachment of a beaver-proof water flow control device to the existing culvert.  This device consists of a vertical inlet pipe extending into the catch basin to a depth sufficient to conceal the bottom flow of the water from beavers.  The device also conceals the culvert opening where beavers usually start their dams. Sufficient water in the catch basin is maintained by the addition, as necessary, of stop blocks vertically inside the unit.  The flow of water is not restricted as the device allows water to flow through the existing culvert at its maximum capacity.  The device is adaptable to round or square culverts and can be insulated to control winter ice build-up.
Patent CA-2016750-A1 (CA)
Title: Wellhead joint and sealing ring
Inventor: SZYMCZAK EDWARD J
IPC: E21B33/00
Filed: 1990-05-14
Abstract: The improved joint of the present invention includes a wellhead housing and its complementary member forming the joint and they include surfaces which taper both inwardly and away from the joint surfaces together with straight cylindrical sealing surfaces extending away from the inner end of the tapered surfaces. One form of improved seal includes a sealing ring having a tubular body with an external flange or hub to be clamped between the joint surfaces of the joint members, tapered external surfaces which mate with and provide a tight sealing engagement with the tapered surfaces of the joint members and tubular rims extending away from the tapered surfaces and having sufficient length to protect the straight cylindrical sealing surfaces of the joint members. A modified form of improved seal includes a sealing ring having a tubular body with an external. flange to be clamped between the joint surfaces of the joint members, and tubular rims terminating in an external rounded portion having a short annular flat sealing surface thereon for engaging the straight cylindrical sealing surfaces of the joint members at a position spaced axially from the tapered sealing surfaces of the joint members.
Patent CA-2018530-A1 (CA)
Inventor: RAGLAND FRANK R JR
IPC: H01J31/20
Filed: 1990-06-07
Abstract: ABSTRACT          An improved color picture tube includes an evacuated glass envelope having a rectangular faceplate panel.  The panel includes a shadow mask assembly mounted therein by support means located at peripherally spaced positions within the panel.  The support means at each of the spaced positions includes a stud attached to the glass envelope, a spring and a plate.  The spring has an aperture therein that engages the stud.  The spring is attached to the plate, and the plate is welded to the mask assembly.   The improvement comprises the plate being welded to the mask assembly at only one location.  This location is on a line, perpendicular to the plate, that passes through the center of the aperture in the spring.
Patent CA-2019066-A1 (CA)
Inventor: YAGER PAUL
IPC: G01N21/64
Filed: 1990-06-15
Abstract: FLUORESCENCE-BASED OPTICAL SENSOR FOR  DETECTION OF LIPID-SOLUBLE ANALYTES             Abstract of the Disclosure A sensor, probe, system and method for detecting the presence of or concentration of lipid-soluble analytes such as anesthetics, which involve the use of fluorophore-containing lipid layers or similar amphiphilic structures as the sensor. The lipid layer is constituted such that it has a phase transition temperature equal to or close to the temperature at which the measurement of the analyte is conducted. Partitioning of a suitable analyte into the lipid layer results in a phase change which is then reflected in a change in a fluorescence characteristic, such as a shift in the wavelength of maximum intensity of fluorescence, of the fluorophore, in proportion to the amount of analyte.
Patent CA-2021946-A1 (CA)
Title: Determination and detection of antibody and its immunoglobulin class
Inventor: ITO MICHIO
IPC: G01N33/564
Filed: 1990-07-25
Abstract: ABSTRACT     This method can determinate and detect an antibody in a biological fluid sample against a specific antigen and its immunoglobrin class.  This method comprises the step of:          -----providing a first reagent of insoluble substrate particles carrying the antigen on the surface thereof and a second reagent of insoluble substrate particles carrying on the surface thereof a substance paticulary reactive to a specific immunogloblin class, the latter reagent containing a magnetic material;          -----reacting the sample with both of the reagents in a reaction system;          -----agglomerating the antigen-carrying particles together with the magnetic material-containing particles through the antibody;          -----separating both of the unreacted magnetic material-containg particles and the resultant agglomerate by applying a magnetic field to the reaction system; and -----visually or spectrophotometrically estimating an amount of the antigen-carrying particles which remains unreacted in the reaction system.
Patent CA-2026154-A1 (CA)
IPC: H01L35/22
Filed: 1990-09-25
Abstract: LOW-TEMPERATURE REFRIGERATING DEVICE USING CURRENT-CARRYING SUPERCONDUCTING MODE/      NONSUPERCONDUCTING MODE JUNCTIONS                ABSTRACT OF THE DISCLOSURE        A  refrigerating  device  (34 or 46) is formed using  a  refrigerating  unit  (10)  having a hot end (32)  at  which  heat  is  transferred to a heat sink (22),  a  cold  end (30) at which heat is transferred from  a cooling  load (28) to the unit (10), a first junction  (14) of a material (16) carrying electrical current  in  a  nonsuperconducting mode to a material (12)   carrying    electrical    current    in    a superconducting  mode  nearest  the  hot  end (32), a second  junction  (18)  of  a  material (12) carrying electrical  current  in  a  superconducting mode to a material   (20)  carrying  electrical  current  in  a nonsuperconducting  mode  nearest  the cold end (30), and  an  electrical current source (24) that forces a flow  of electrical current in the direction from the flrst   junction  (14)  toward  the  second  junction (18).    As  the  electrical  current  flows, heat is transferred  from the cooling load (28) into the cold end  (30),  and expelled to the heat sink (22) at the hot   end   (32).     Preferably,  a  number  of  the refrigerating  units  (10) are connected electrically in  series,  to  form single stage (34) or multistage (46) refrigerating devices.
Patent CA-2027222-A1 (CA)
Title: Calibrated fluid injection system
Inventor: WILLIAMS JAMES F
IPC: G01F11/02
Filed: 1990-10-10
Abstract: PATENT     ABSTRACT            A fluid injection system is disclosed.  The fluid injection system incorporates an injection pump comprising an adjustable restriction device that is used to control the extent of the movement of the pumping mechanism in the injection pump.  An adjustable gauge and an adjustable marker are used to accurately calibrate and accurately position the adjustable restriction device.  When the adjustable restriction device is accurately calibrated and correctly positioned, a precise amount of additive is injected into the pipeline.
Patent CA-2029161-A1 (CA)
Title: Method and apparatus for rolling continuous material
Inventor: LINK CHRISTOPH
IPC: F16C13/00
Filed: 1990-11-01
Abstract: ABSTRACT OF THE DISCLOSURE    Apparatus  and  process  are  provided  wherein pressure is exerted on a web by at least two rollers. One roller includes a roll shell which is rotatable around a stationary beam, wherein the roll shell is supported against the beam by hydraulic operational support elements on the side of the press, as well as by counterpressure elements exerting pressure in the opposite direction.   A particularly rapid and safe opening of the roller device, without damaging the supporting elements or the roll shell because of detached supporting elements, is achieved because the hydraulic pressure medium from pressure areas of at least part of the operational support elements is routed as directly as possible without detours to the pressure areas of counterpressure elements, such as by a multiple sliding valve located at the beam end.
Patent CA-2031434-A1 (CA)
Inventor: FACCIOLI GIOVANNI
IPC: A61B17/56
Filed: 1990-12-04
Abstract: A process and apparatus is disclosed for the mixing and direct emplacement of a bone cement formed from  two  components,  one  liquid  and  one  powder, comprising  the  steps  of  storing  the  two  components separately  in  a  multichamber  container,  opening  the liquid phase container within one of the said chambers which  is  not  in  communication  with  the  outside atmosphere,  setting up a negative pressure within the chamber containing the powder phase, causing aspiration of the liquid into the chamber containing the powder, mixing the two phases,  compacting the paste obtained, injecting the paste into a cannula and extruding the paste with direct emplacement of the cement.
Patent CA-2031683-A1 (CA)
Title: Artificial eye, scleral shell, contact lens or the like
Inventor: ROY ABHIJIT
IPC: B29D11/02
Filed: 1990-12-06
Abstract: ABSTRACT            Title: "Artificial eye, scleral shell, contact lens or the like"   The invention provides a process of manufacture of an article such as an artifical eye (10, 110, 210), scleral shell, contact lens or the like, wherein a portion (16) of the article is provided by producing a photograph of a corresponding portion of a natural eye, and incorporating that photograph in the article so as to constitute that portion of the article. The invention also provides an article manufactured by such a process.
Patent CA-2033195-A1 (CA)
Title: Aortic graft and method for repairing aneurysm
IPC: A61M25/00
Filed: 1990-06-15
Abstract: An aortic graft and system (10) and method for implanting the aortic graft are provided. The aortic graft (18) comprises a substantially cylindrical graft material with attachment means (22) which comprise a plurality of post (24) and hook (25) assemblies which are implanted with a double catheter system (35) to penetrate the aorta wall (11) above and below the aneurysm (12) to provide firm attachment of the aortic graft (18) and, thereby, exclude the aneurysm (12) from the circulatory system.
Patent CA-2034632-A1 (CA)
Inventor: FUERST CARLTON D
IPC: H01F1/058
Filed: 1991-01-21
Abstract: Anisotropic permanent magnets consisting essentially of RE2TM14C are prepared by hot working suitable iron-neodymium/praseodymium-carbon containing alloys so as to produce deformed fine grains of the above essential magnetic phase.
Patent CA-2034711-A1 (CA)
Title: International authorization system
Inventor: TEJADA GEORGE
IPC: G06Q40/00
Filed: 1991-01-22
Abstract: A network system is disclosed for handling telephone requests for authorizing financial transactions between a merchant (10) and the issuer (20) of the transaction card presented for the transaction.  The network system includes an intelligent switch (14) for receiving an incoming call from a merchant.  The switch includes a Voice Response Unit (VRU) (16) which generates a request for the merchant to enter the account number of the transaction card.  The switch then determines the issuer based on data contained in the account number received from the merchant (118).  The switch then initiates a call to the issuer (120).  The switch then connects the merchant and issuer to enable the issuer to obtain additional information, directly from the merchant, for evaluating the transaction (132).  Once the information has been received, the issuer will generate an approval code which is relayed by the switch to the merchant (146, 148). The switch will also keep a record of the transaction parameters (154).  If the merchant and issuer are located in different countries, the switch can add a bilingual operator to the call for translating the verbal communications between the merchant and the issuer (232).
Patent CA-2035828-A1 (CA)
Title: Trans-1,4-polybutadiene synthesis
Inventor: CASTNER KENNETH F
IPC: C08F36/06
Filed: 1991-02-06
Abstract: Trans-1,4-polybutadiene is a thermoplastic resin by virtue of its high level of crystallinity. Because traps-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and cocured with rubbers. Even though traps-1,4-polybutadiene is a thermoplastic resin, it becomes elastomeric when cured alone or when cocured with one or more rubbers. By utilizing the catalyst system and techniques of this invention, traps-1,4-polybutadiene can be synthesized continuously to a high level of conversion with only minimal amounts of gel formation. This invention specifically relates to a process for synthesizing trans-1,4-polybutadiene in a continuous process which comprises continuously charging 1,3-butadiene monomer, an organocobalt compound, an organoaluminum compound, a para-substituted phenol, carbon disulfide, and an organic solvent into a reaction zone; allowing the 1,3-butadiene monomer to polymerize in said reaction zone to form the traps-1,4-polybutadiene; and continuously withdrawing the traps-1,4-polybutadiene from said reaction zone. It is highly preferred for the para-alkyl substituted phenol utilized in this process to contain from about 12 to about 26 carbon atoms.
Patent CA-2037038-A1 (CA)
Inventor: BOISVERT JACQUES
IPC: E04B1/12
Filed: 1991-02-25
Abstract: Dans une brique de matériel conventionnel,on sait que le temps de montage pour un mur extérieur est long et ne contient aucun isolant. Dans la présente invention,la brique est fabriquée de matière plastique soufflé et est rempli d'isolant.dû à la légèreté des matériaux utilisés on diminu le temps de pose tout en permettant un surcroit d'isolation pour le batiment. Ladite brique peut avoir des dimensions,des fini de surface et des couleurs variées.
Patent CA-2037124-A1 (CA)
Title: Colorimetric process for monitoring impurities on aluminium hydrate
Inventor: DABLAINVILLE RAYMOND
IPC: G01N21/84
Filed: 1991-02-25
Abstract: Continuous monitoring of the impurity content in a product travelling past in bulk and with a nonuniform thickness on a conveyor belt. The monitored impurity giving a colour reaction with a suitable reagent. 
<??>The invention consists of the combination of three means: 
 
  - a means for levelling the upper surface of the product on the belt at least in a certain region, 
  - a means for spraying the reagent on the surface of the product which is thus levelled, in order to develop the colour by reaction with the impurity 
  - a means for colorimetric determination of the intensity of the colour obtained with the aid of the reagent. 
 
<??>The invention applies in particular to the monitoring of the residual sodium hydroxide content in alumina trihydrate obtained in the Bayer process before it is calcined. 
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Patent CA-2039215-A1 (CA)
Inventor: HENDRIKS EMERY F M
IPC: B60W10/10
Filed: 1991-03-27
Abstract: A B S T R A C T            Electronically controlled continuously variable transmission.            An electronically controlled continuously variable transmis-sion (1) provided with a driving belt (7), which is disposed between a primary pulley provided on a primary shaft (2) and a secondary pulley provided on a secondary shaft (8), whereby each pulley has corresponding conical pulley halves and at least one of said corresponding pulley halves is axially movable by means of primary (29) and secondary (74) moving means connected to a primary pulley half (3, 4) and a secondary pulley half (9, 10) respectively, characterized in that the transmission is provided with primary electronic control means (6) coupled to the primary moving means (29), and with secondary electronic control means (12) coupled to the secondary moving means (74).
Patent CA-2039805-A1 (CA)
Title: Manual adjust having oppositely toothed fitting
Inventor: MOORE BRUCE H
IPC: F16C1/22
Filed: 1991-04-04
Abstract: MANUAL ADJUST HAVING OPPOSITELY TOOTHED FITTING               ABSTRACT OF THE DISCLOSURE         A  motion  transmitting  remote   control assembly (10) including a conduit (12), and a motion transmitting core element (14) moveably supported by the conduit (12).  A terminal (22) is attached to one end of the core element  (14)  for attachment to a member to be controlled.   The terminal (22) adjusts the effective length of the core element  (14)  by manually locking the terminal  (22)  into any one of various locking positions and includes three members. The  first member  (24)  includes  a  first  (46)  and second  (48)  plurality of teeth  (50)  inclined away from one another and is attached to the core element (14).   The second member  (26)  is attached to the control member.   The third member  (28)  includes a first  (46')  and a second  (48')  plurality of teeth (50') adapted for matingly interconnecting the first and second members (24, 26) and is moveable between an  unlocked position,  allowing  relative  movement between the first and second members (24, 26) and a locked  position   for  preventing   such   relative movement.   An alternative assembly (110)  includes a mid-conduit  (112)  adjustment device  (121)  having a first member (124) and third member (128).  Two rows of oppositely  inclined teeth  (146',  148')  on  the third  member   (128)   are  moveable into  locking engagement with two rows of oppositely inclined teeth (146, 148) on the first member (124).
Patent CA-2042918-A1 (CA)
Inventor: STAWITZ JOSEF-WALTER
IPC: D06P3/60
Filed: 1991-05-21
Abstract: Dyestuff mixtures Abstract Dyestuff mixtures containing one or more dyestuffs of the formula            (I) and one or more dyestuffs of the formula                 (II) in which the substituents have the meanings given in the description are highly suitable for producing green cotton dyeings.            Le A 27 662- US
Patent CA-2043354-A1 (CA)
Title: Poste telephonique a specifications adaptables
Inventor: VEISLINGER YVES
IPC: H04M1/738
Filed: 1991-05-28
Abstract: : Poste téléphonique à spécifications adaptables Poste téléphonique, à spécifications adaptables, comportant au moins un microcontrôleur (3), un générateur de signaux de numérotation téléphonique (4), une mémoire non volatile (5), notamment de type E2PROM, apte à conserver des données d'information, telles que celles de numéros de téléphone privilégiés ou des spécifications du poste, dans des portions correspondantes réservées de cette mémoire non volatile. Le microcontrôleur est programmé pour commander une émission, sous forme de signaux de numérotation par le générateur, des données de spécification contenues dans la portion réservée correspondante de mémoire volatile, suite à la réception d'un signal caractéristique applique au poste, mis à l'état décroché. FIGURE A PUBLIER : Fig 1
Patent CA-2044810-A1 (CA)
Title: Agents to prevent polymer scale deposition and a method therefor
Inventor: USUKI MASAHIRO
IPC: C08F2/00
Filed: 1991-06-17
Abstract: "AGENTS TO PREVENT POLYMER SCALE DEPOSITION AND A METHOD THEREFOR"                 ABSTRACT OF THE DISCLOSURE    Scale  deposits  during  polymerization  of  monomers containing ethylene-type double bonds are prevented by coating the reactor walls and parts with cationic dyes oxidized with hydrogen peroxide.