baber/WOPTO huggingface dataset:
Patent CA-1243446-A (CA)
Inventor: DENZINGER WALTER
IPC: C08F222/02
Filed: 1982-09-27
Granted: 1988-10-18
Abstract: Abstract of the Disclosure:  In a process for the prepara-tion of copolymers which contain monoethylenically unsatu-rated monocarboxylic acids and dicarboxylic acids as co-polymerized monomer units, by copolymerizing the monocar-boxylic acids with the dicarboxylic acids or, where appropriate, their inner anhydrides, in an aqueous medium in the presence of a water-soluble initiator, the improve-ment that a) from 10 to 60% by weight, based on the sum of the mono-mers, of a monoethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms, its alkali metal salt or, where appropriate, its anhydride, b) from 90 to 40% by weight of a monoethylenically unsatu-rated monocarboxylic acid of 3 to 10 carbon atoms or its alkali metal salt and c) from 0 to 20% by weight of another monoethylenically unsaturated monomer, which is free from carboxyl groups and is copolymerizable with a) and b) are copolymerized in an aqueous medium in the presence of from 0.5 to 5% by weight, based on monomers, of the water-soluble initiator by introducing the dicarboxylic acid, its salt or its anhydride into the aqueous medium, adding the monocarboxylic acid together with the initiator over from 3 to 10 hours, completing the reaction at 60 - 150°C and, where appropriate, hydrolyzing the anhydride groups.
Patent CA-1221446-A (CA)
Inventor: TOENSMANN ARMIN
IPC: E06B3/67
Filed: 1982-10-27
Granted: 1987-05-05
Abstract: ABSTRACT The darkening device consists of a cell extending over the entire pane or over a part thereof.  The said cell comprises transparent electrode-layers arranged in parallel with each other, to which an electrical voltage may be applied.  At least one of these electrode-layers is provided on the inside with an electrochrome coating.  The internal chamber of the said cell is filled with an electrolyte containing ions.  When an electrical voltage of about 2 volts is applied to the said electrode-layers, the ions migrate to the said electrochrome coating which becomes coloured.  When the voltage is switched off, the positive ions return to the electrolyte and the said electrochrome coating becomes transparent again.
Patent CA-1226485-A (CA)
Inventor: FERBECK DANIEL
IPC: G01L17/00
Filed: 1982-11-01
Granted: 1987-09-08
Abstract: ABSTRACT            Apparatus for detecting deflation of a guide wheel tyre of a transporting vehicle A transportation vehicle for a transit system has a supporting structure provided with wheels moving on parallel tracks and inflated tyres in rolling contact with stationary guide bars for guiding the structure. An apparatus for providing an indication of deflated or flat rubber tyre is provided on the roadway.  It detects lateral offset of the support structure with respect to the tracks from a set position responsive to deflation of one tyre.          The sensors are connected to a circuit which provides an alarm when the amount of offset exceeds a predetermined value.
Patent CA-1208218-A (CA)
Inventor: VISCONTINI MAX
IPC: C07D475/04
Filed: 1982-11-10
Granted: 1986-07-22
Abstract: Abstract of the Invention A novel compound, 1',2'-diacyl-(6R,S)-5,6,7,8-tetrahydro-L-biopterin which is prepared by catalytical hydrogenation of a 1',2'-diacyl-L-biopterin in a solvent in the presence of a catalyst. The 1',2'-diacyl-L-biopterin is prepared from a 1,1-dialkylsulfonyl-L-rhamnose through an acyl derivative of 5-deoxy-L-arabinose and a hydrazine derivative of tetrahydro-L-biopterin without isolating the intermediate products. The 1',2'-diacyl-(6R,S)-5,6,7,8-tetrahydro-L-biopterin can be used for treatment of atypical phenylketonuria or dihydrop-terin-reductase deficiency and can readily cross the blood brain barrier without neurotransmitter precursors.
Patent CA-1191213-A (CA)
Inventor: SASAKI YUTAKA
IPC: H03F3/19
Filed: 1982-11-23
Granted: 1985-07-30
Abstract: Abstract There is described s transistor circuit which is capable of reducing power consumption in voltage dividing resistors used in biasing and of sup-pressing temperature dependent variations in transistor characteristics.  The transistor circuit has a first transistor for amplification or oscillation and a biasing circuit for supplying a D.C. biasing voltage to the base of the first transistor.  The biasing circuit comprises a voltage dividing resistor having an output terminal for providing a divided D.C. voltage, and a second transistor constituting an emitter follower circuit, whose base is connected to the output terminal and whose emitter is coupled to the base of the first transistor to provide the D.C. biasing voltage.  The second transistor is opposite in conductivity type from the first transistor.
Patent CA-1195827-A (CA)
Inventor: CHRISTNER LARRY G
IPC: C04B35/532
Filed: 1983-01-13
Granted: 1985-10-29
Abstract: HEAT TREATING                 Abstract of the Disclosure Heat treating of a material containing a carbon degradable content is carried out by segmenting the temperature range of heat treating into at least two intervals, a first one of which is able to support heat treating without blistering of the material at a first maximum rate and a second one of which is able to support heat treating without blistering at a second maximum rate different from the first rate, and the material is heated at a first rate equal to or less  than the first maximum rate in the first interval and at a second rate different from the first rate and equal to or less than the second maximum rate in the second interval.
Patent CA-1209248-A (CA)
Inventor: WEIR WALTER F
IPC: H01Q19/02
Filed: 1983-03-25
Granted: 1986-08-05
Abstract: ABSTRACT OF THE DISCLOSURE         A parabolic, collapsible rooftop microwave antenna for direct satellite-to-consumer TV transmission pivots in the direction of the aperture axis about a horizontal pivot axis in response to excessive wind forces.  The antenna has a cross-head theodolite-type mount adjustable for azimuth and elevation, with a horizontal pivot that provides axial displacement if the axial wind force exceeds a predetermined threshold force.  This limits the torque transmitted to the roof on which the antenna is mounted to a reasonably low level.  Various torque sensitive horizontal pivots are des-cribed including a torqued pivot bolt, torqued slide bolts disposed in arcuate slots for limit-stop action, shear pins for quick release action, and biased springs for collapse and self-restoration to the initial vertical position in response to transient wind force exceeding a threshold force set by the spring bias.
Patent CA-1187624-A (CA)
Inventor: GANDINI MARCO
IPC: H01L27/02
Filed: 1983-04-11
Granted: 1985-05-21
Abstract: ABSTRACT            A basic cell for integrated circuit gate arrays comprises four field effect transistors in pairs having complementary polarity.  Two complementary transistors, symmetrically located with respect to a central point of the cell, have their gate electrodes connected by a polycrystalline silicon path traversing spaced metal power lines.   A second polycrystalline silicon path connects areas on oppo-site sides of a zone defined between the metal power lines. Contacts associated with the transistor electrodes are arranged in groups inside and outside the zone defined between the power lines so as to minimize the cell surface, contacts associated with electrodes not already intercon-nected within the cell being duplicated inside and outside the zone defined between the power lines.
Patent CA-1226906-A (CA)
Inventor: GEDDES LESLIE A
IPC: A61B5/00
Filed: 1983-04-20
Granted: 1987-09-15
Abstract: Cardiac output is measured utilizing an indicator, such as saline, which alters blood resistivity, and an electrically calibrated conductivity cell positioned at the tip of a catheter.          The catheter with the tetrapolar conductivity cell at the top is inserted into a blood vessel for current injection to develop a potential which is proportional to blood resistivity for inscribing the dilution curve occurring due to injection of the indicator, which curve is utilized to determine blood flow or cardiac output.
Patent CA-1188815-A (CA)
Inventor: CAREY RICHARD A
IPC: G06F13/28
Filed: 1983-04-28
Granted: 1985-06-11
Abstract: ABSTRACT     An interactive terminal computer  system is disclosed having a system  bus for communicating between  elements of the computer system  which  has apparatus  for permitting  the execution  of a maximum number of concurrent bus cycles without interference with each other.
Patent CA-1199129-A (CA)
Title: Procede et dispositif de reglage du ph de l'eau de  refroidissement d'un reacteur nucleaire a eau sous  pression
Inventor: TROTTIER JEAN-PIERRE
IPC: G21D3/08
Filed: 1983-05-02
Granted: 1986-01-07
Abstract: Procédé de réglage du pH de l'eau de refroidissement d'un réacteur nucléaire à eau sous pression et un dispositif de réglage correspondant. Selon l'invention, on mesure en continu la concentration de l'eau de refroidissement en acide borique et l'un des deux paramètres : pH à température ambiante et concentration en base de conditionnement. On calcule la concentration en base de conditionnement nécessaire pour obtenir une valeur de pH à haute température égale à une valeur prédéterminée. On détermine la quantité de base de conditionnement à enlever ou à ajouter et on effectue une injection ou un prélèvement correspondant dans le circuit primaire du réacteur. Le dispositif comporte un appareil de mesure de la teneur en acide borique, un appareil de mesure de pH et une unité de calcul. On utilise un robinet à plusieurs voies pour la mise en circulation de l'eau de refroidissement dans une unité de déminéralisation et un circuit d'injection de base de conditionnement. L'invention s'applique, en particulier, à la régulation des caractéristiques chimiques du fluide primaire, pour limiter la radio-activité du circuit primaire.
Patent CA-1234200-A (CA)
Inventor: KEZNICKL EDUARD
IPC: G01K13/00
Filed: 1983-06-08
Granted: 1988-03-15
Abstract: ABSTRACT OF THE DISCLOSURE   A switch for portable electronic instruments which can be totally enclosed in and made part of the device which includes a switching unit for changing the electric connection with at least one operating element in the device and which also includes a mass movable with at least one degree of freedom so that it can cooperate with the switching unit for changing it from a first to a second condition upon movement of the mass relatively to the switching unit under inertial or gravitational effects of the mass. The switching unit may comprise electrical contacts but may also include piezo electric crystals, pressure sensitive semi-conductors, and inductive and capacitance generators.  The device may be under the control of a program, and the switching unit provide more than one or differing outputs, so that the function of the device can be controlled by way of the switch and the programs concerned.  An electronic fever thermometer incorporating such a switch is specifically described.
Patent CA-1174857-A (CA)
Title: Recovery of cerium from ion exchange resin
Inventor: SPEAKMAN EDWIN L
IPC: C22B59/00
Filed: 1983-06-28
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to removal of cerium (III) adsorbed on an ion exchange resin by releasing the adsorbed cerium (III) as a precipitate and thereafter separating the precipitate from the resin. The invention also relates to simultaneously regenerating the resin.
Patent CA-1204632-A (CA)
Inventor: KALT DAVID
IPC: A01M23/26
Filed: 1983-07-18
Granted: 1986-05-20
Abstract: ANIMAL TRAP SIGNAL APPARATUS               ABSTRACT OF THE INVENTION        A signal apparatus for use with an animal trap positionable underwater includes an open ended housing adapted to be secured in a substantially vertical posi-tion to a stationary portion of the trap.  A movable cover releasably closes the open end of the housing.  A connecting member connects the cover to a movable portion of the animal trap to uncover the open end of the housing when the trap is sprung.  A buoyant float is disposable within the housing.  An elongated attaching member con-nects the float to the housing enabling it to rise to the surface of the water when the trap has been sprung to provide an indication of the condition of the trap.
Patent CA-1206614-A (CA)
Inventor: FREEMAN EDWARD J
IPC: H04N5/76
Filed: 1983-08-15
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE           A video disc record of the constant angular velocity type (CAV) includes a spiral groove of constant pitch formed in a band on a surface thereof.  The groove has a substantially constant nominal vertical dimension and vertical displacements which taper monotonically from an outer radius of the band to an inner radius.  One component of the vertical displacement of the groove conveys an FM carrier wave of constant amplitude and relatively high frequency representative of picture information.  A second component of the vertical dis-placement conveys one or more lower frequency FM carrier waves representative of sound information. The amplitude of the second component varies monotonically as a function of the groove radius within the record band to provide a disc having an improved audio FM carrier-to-noise ratio with no substantial perceptible increase in undesirable sound beat effects in images displayed when the disc is played.  A mastering system exemplary of the method of forming the grooved disc includes variable gain units in an audio FM carrier wave processing path of the system.
Patent CA-1208565-A (CA)
Inventor: MORTON ANTHONY J
IPC: A61Q11/00
Filed: 1983-09-13
Granted: 1986-07-29
Abstract: ABSTRACT OF THE DISCLOSURE           A dental cream containing high viscosity hydroxyethyl cellulose gelling agent, a calcium phosphate polishing agent and a binary source of fluorine of sodium fluoride and sodium monofluoro-phosphate.
Patent CA-1247211-A (CA)
Inventor: CINZORI ROBERT J
IPC: G08B17/12
Filed: 1983-09-19
Granted: 1988-12-20
Abstract: DISCRIMINATING FIRE SENSOR WITH THERMAL OVERRIDE CAPABILITY                          ABSTRACT A fire sensor apparatus (10) of the type having a discriminating fire sensor portion (12, 14) for detecting radiation in at least different spectral bands associated with a fire and for providing an output signal in response to predetermined amounts of radiation in those spectral bands associated with a particular size and type of fire to be detected.  A novel heat sensor channel (50) is provided, which provides a further output signal in response to an amount of detected heat radiation greater than that associated with the fire of the type and size to be detected.  A heat override function is thereby provided to permit the generation of an output signal even when contaminants block the action of the discriminating fire sensor portion.
Patent CA-1207865-A (CA)
Inventor: GUSCOTT JOHN K
IPC: G01V8/14
Filed: 1983-11-23
Granted: 1986-07-15
Abstract: A B S T R A C T   A ceiling mountable passive infrared intrusion detection system is disclosed having a mirror assembly providing a first protective curtain which is relatively narrow in the horizontal plane and which substantially encompasses the vertical space of a protected facility, and providing a second protective curtain which is relatively narrow in the vertical plane and which substantially encompasses 360° of horizontal space of a protected facility. A temperature stabilized and shock insensitive infrared detector is disposed along the optical axis and at the focal point of the system to provide electrical signals in response to received radiation from the field of view of the protective curtains. The electrical signals are electronically processed to provide an output indication of intruder presence when in motion about both the floor area and the space between the floor area and the ceiling of a protected facility.
Patent CA-1208199-A (CA)
Inventor: PREW STANLEY R
IPC: B01F11/00
Filed: 1983-11-24
Granted: 1986-07-22
Abstract: Abstract A method and apparatus for mixing granular, particulate or pulverant material is disclosed.  An unhomogenous mixture of two or more such materials is introduced into and moved through a preferably inclined trough structure having rigid side walls and a flexible floor member.  At one or more isolated positions on this floor member it is subjected to relatively intense vibra-tional motion.  It is found that such restricted use of vibrational motion results in a thorough yet gentle mixing of granular, particulate or pulverant materials.
Patent CA-1214943-A (CA)
Title: Recovery of metal values from a pulp containing such values in dissolved form
Inventor: DAVIDSON RAYMOND J
IPC: B03B5/60
Filed: 1983-12-01
Granted: 1986-12-09
Abstract: ABSTRACT          A method of recovering metal values,e.g. gold and silver values from a pulp containing such metal values in dissolved form includes the steps of forming a bed comprising a randon mass of particles of a material such as activated carbon which is capable of removing the metal values from the pulp, in a column having a feed end and a discharge end, and passing a stream of the pulp through the column from the feed end to the discharge end so that the particles of the bed are suspended in a substantially stationary non-fluidised state between the feed end and the discharge end.The stream of pulp is periodically stopped so that the particles of the bed move back toward the feed end of the column.
Patent CA-1206453-A (CA)
Inventor: EUBANKS BOBBY G
IPC: B60R3/00
Filed: 1983-12-21
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE        A platform is supported on a ladder structure for selective elevation on a post arrangement supported on a trailer provided with outrigger devices.  The ladder is part of the elevating pole structure which is pivotally elevated by a small manually operated winch.  The bottom of the pole is moved into a guide comprising opposed plates.          The platform may be partly enclosed and provided with a top.
Patent CA-1208923-A (CA)
Inventor: KELM JAMES S
IPC: F02C5/00
Filed: 1983-12-22
Granted: 1986-08-05
Abstract: FLOW MODIFYING DEVICE ABSTRACT OF THE DISCLOSURE     A swirler for a gas turbine engine combustor is disclosed for simultaneously controlling combustor flow rate, swirl angle, residence time and fuel-air ratio to provide three regimes of operation.  A first regime is provided in which fuel-air ratio is less than stoichometric, NOx is produced at one level, and combustor flow rate is high.  In a second regime, fuel-air ratio is nearly stoichometric, NOx production is less than that of the first regime, and combustor flow rate is low.  In a third regime, used for example at lightoff, fuel-air ratio is greater than stoichometric and the combustor flow rate is less than in either of the other regimes.
Patent CA-1212663-A (CA)
Inventor: ALLEN JOHN
IPC: B63B27/18
Filed: 1984-04-27
Granted: 1986-10-14
Abstract: ABSTRACT     A payload can be transferred between two relatively movable stations for example two ships using a winch system having an inhaul winch and an outhaul winch.  The barrel of the outhaul winch is driven by an outhaul motor through a torque convertor such that the outhaul winch provides pull on the trolley 16 regardless of the sense of rotation of the outhaul winch barrel.  A control system is used to control the speed of the inhaul winch barrel either to retrieve cable or to pay out cable.  Thus, the speed of the trolley 16 is controlled by the speed at which the inhaul winch barrel is driven.  The outhaul winch either can be at same station as the inhaul winch or can be at the opposite station to the inhaul winch.
Patent CA-1205634-A (CA)
Inventor: BHAGAVATULA VENKATA A
IPC: G02B6/10
Filed: 1984-05-01
Granted: 1986-06-10
Abstract: Abstract of The Disclosure A process for manufacturing a preform from which is drawn an optical fiber, the core of which comprises layers  of  different  glass  composition.   Layers  of glass,   adjacent   ones   of   which   have   different composition, are deposited on a substrate.  A process is  preferred  whereby  layers  of  glass  soot  are deposited.  The soot is consolidated and the resultant laminated  glass  structure  is  severed  to  form  an elongated   azimuthally   asymmetric   laminated   core structure.  A layer of cladding glass is added to the core structure, and the resultant preform is drawn into an optical fiber.
Patent CA-1204938-A (CA)
Inventor: BHAGAVATULA VENKATA A
IPC: G02B6/10
Filed: 1984-05-01
Granted: 1986-05-27
Abstract: Abstract of The Disclosure A process for manufacturing a preform from which is drawn an optical fiber, the core of which comprises layers of different glass composition.  Layers of glass soot are  deposited  on  the flat,   longitudinally extending sides of a thin, elongated mandrel.  Adjacent soot coatings have different refractive  indices.   A preliminary coating of cladding glass soot is deposited on  the  laminated  soot  structure.   The  resultant composite body is consolidated and stretched to form a rod or core structure upon which the final coating of cladding soot is deposited.  The resultant composite body is consolidated and drawn into an optical fiber. In a modification of the this method, the mandrel is removed after the planar soot coatings and preliminary coating of cladding soot are deposited thereon.  The resultant soot body is  consolidated and processed as described previously.
Patent CA-1246610-A (CA)
Inventor: MURASE KIYOSHI
IPC: C07C49/245
Filed: 1984-05-02
Granted: 1988-12-13
Abstract: Abstract of the Disclosure A process of producing a catechol derivative represented by the formula   The compounds of this invention are useful for the prophylaxis and treatment for various allergic diseases, ischemic heart diseases and inflamations caused by slow reacting substance of anaphylaxis (SRS-A), since the compounds inhibit very potently the formation and release of SRS-A.
Patent CA-1233751-A (CA)
Title: Visually clear dentifrice
Inventor: HAYES HARRY
IPC: A61K8/00
Filed: 1984-05-15
Granted: 1988-03-08
Abstract: ABSTRACT "VISUALLY CLEAR DENTIFRICE COMPOSITION"           A visually clear pigmented dentifrice comprising a liquid vehicle having a refractive index of about 1.36 to 1.47, up to about 10% by weight gelling agent, about 5-50% by weight of a polishing material having a refractive index similar to that of the liquid vehicle, such that the dent-ifrice is transparent or translucent when the polishing agent is dispersed in the liquid vehicle, and about 0.001% to 1% by weight of colour-intensive insoluble conjugated pigment dispersed homogeneously through the dentifrice.
Patent CA-1217261-A (CA)
Inventor: DOUGHTY CAROLYN A
IPC: H04M1/57
Filed: 1984-06-26
Granted: 1987-01-27
Abstract: METHOD AND APPARATUS FOR SENDING A DATA MESSAGE TO A SELECTED STATION DURING A SILENT INTERVAL BETWEEN RINGING           Abstract For use with a telephone switching system serving a plurality of stations and having a central processor for generating data messages and a ringing circuit for generating ringing signals to a selected station, method and apparatus are disclosed for sending a data message to a selected station during a silent interval between ringing signals.  The apparatus includes a detector and a sender. Responsive to a first ringing signal, the detector generates a status signal representative of the silent interval between ringing signals.  During the silent interval, the sender sends to the selected station a frequency shift keyed signal representative of the data message.  (FIG. 1).