baber/WOPTO huggingface dataset:
Patent CA-1086448-A (CA)
Title: Process for the preparation of foams characterized by  isocyanurate and urethane linkages
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/10
Filed: 1978-05-04
Granted: 1980-09-23
Abstract: PROCESS FOR THE PREPARATION OF FOAMS CHARACTERIZED BY ISOCYANURATE           AND URETHANE LINKAGES                    Abstract Of The Invention Foams characterized by isocyanurate and urethane linkages are prepared by condensing: (a) an organic poly--isocyanate with a polyol or (b) a quasi-prepolymer in the presence of a blowing agent and a catalytically effective amount of an alkali metal salt of an organic sulfinic acid.          The catalysts of the invention offer the advantages of longer cream times and fully cured foams in acceptable times thus finding particular utility in pour-in-place and slab stock foaming applications.
Patent CA-1106926-A (CA)
Inventor: TSUJI TOSHIHIKO
IPC: H01F27/255
Filed: 1978-06-05
Granted: 1981-08-11
Abstract: Abstract of the Disclosure A reactor comprising an annular iron core constituting a closed magnetic path and a conductor wound on the iron core.  The iron core is formed of particles of iron or an iron-based magnetic material.  Each particle is covered with an insulative oxide film which contains 0.3 to 0.8% of oxygen by weight based on the particle.
Patent CA-1100439-A (CA)
Inventor: GRANT PHILIP J
IPC: B01J47/08
Filed: 1978-06-22
Granted: 1981-05-05
Abstract: TITLE OF THE INVENTION                   INDUSTRIAL TECHNIQUE                       ABSTRACT     An illustrative embodiment of the invention converts a feed solution stream into three separate streams of concentrated acid, concentrated alkali and deionized liquid, respectively, through a combination of ion exchange and electrodialysis techniques.  Typically, feed fluid from the primary coolant loop of a nuclear reactor that contains ionized boric acid and lithium -7 hydroxide flows into a bed of mixed anion and cation exchange resins.  Two of the walls of this bed, however, are of anion permeable and cation permeable membranes respectively, to permit the anions to migrate into an anolyte compartment and to permit the cations to migrate into a catholyte compartment.  Within the anolyte compartment there is an anion resin bed which purifies the borate ions from other contaminative anions.  Within the catholyte compartment there is a cation resin bed which purifies the lithium ions from other contaminative cations. Appropriately selected anion permeable and cation permeable membranes for the other sides of the catholyte and anolyte compartments, respectively, allow sufficient ion migration to permit a degree of chemical recombination.  The final-products from these three flow paths are concentrated boric acid, concentrated lithium hydroxide and deionized water from the respective analyte, catholyte and feed fluid compartments.
Patent CA-1101209-A (CA)
Inventor: HUGHAN PETER H
IPC: A01M23/24
Filed: 1978-07-06
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE           An animal trap comprises an enclosure with an open end.  An apertured member is connected to the enclosure for pivoting parallel to the plane defined by the open end.  The member can pivot between a set position where the aperture coincides with the open end of the enclosure and a released position where the member is pivoted away from the enclo-sure.   A spring biases the member to the released posi-tion.  A catch secures the member in the set position.  A release including a portion for securing bait can release the member, allowing it to pivot to the released position.          An animal intruding through the aperture of the pivotable member and the open end of the enclosure and disturbing the bait will be struck and caught in the region of the animal's neck between the pivotable member and the enclosure as the pivotable member pivots to the released position.
Patent CA-1120641-A (CA)
Inventor: MERCURIO ANDREW
IPC: C09D11/02
Filed: 1978-08-28
Granted: 1982-03-23
Abstract: Abstract of the Disclosure A thickened organic solvent based system, particularly an aliphatic hydrocarbon-based liquid composition, such as an ink, the polymeric thickener therefore, a method of making the thickener by emulsion polymerization, and methods of using the thickener are disclosed.  The preferred novel thickener is an addition polymer of hydrophobic monomers and hydrophilic monomers, specific preferred copolymers being of isobutyl methacrylate as the hydrophobic monomer, and one or more acids selected from acrylic acid, methacrylic acid, and itaconic acid as the hydrophilic monomer, in weight ratios of between about 99.920.1 and 90:10.  The preferred acid is methacrylic acid.          Exemplified are ratios of for  instance 99:1 and 98:2.  The novel aliphatic hydrocarbon-based liquid composition contains an organic solvent, in most cases a pigment, a polymeri-resin binder such as limed rosin, and an acrylic thickener, preferably the novel thickener noted above.  The organic solvent is preferably at least predominantly an aliphatic hydrocarbon.  Mixtures thereof with an aromatic hydrocarbon are also useful.  The molecular weight range of the polymer (Mw 100,000 - 2,000,000), the solubility thereof in certain solvents, the T  (? 30°C). and the like are critical for use of the materials in nonpolar or weak solvent-based inks.
Patent CA-1115750-A (CA)
Title: Braking arrangement with rotational rate of  change sensor
Inventor: BLOMBERG FOLKE I
IPC: B60T8/18
Filed: 1978-10-30
Granted: 1982-01-05
Abstract: Abstract of the Disclosure In the combination of a rotating member such as in automotive vehicle wheel, a brake operative for slowing the rotating member or wheel, and a sensor for signalling any occurrence of an excessive rate of retarda-tion of the rotating member or wheel, an improvement which facilitates optimum response of the sensor by varying the sensitivity or responsiveness of the sensor upon variations in a vehicle operating condition such as the weight imposed on the rotating member or wheel or the brak-ing pressure.  In specific forms disclosed, variation in sensitivity of the sensor is accomplished by a variable ratio transmission means mechanically interposed between the sensor and the rotating member or wheel and which is responsive to vehicle operating conditions
Patent CA-1116664-A (CA)
Inventor: FALK BERTIL A
IPC: B62D55/21
Filed: 1978-12-05
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE           An articulated crawler track comprises track links having forward and rear edges and a width dimension extending transverse to the longitudinal dimension of the track and at least two drag links provided between the forward edge of each track link and the rear edge of the adjacent track link, each drag link being articulated to each of the respective track links for movement about parallel axes which are transverse to the longitudinal dimension of the track, the drag links being spaced apart along the width dimension of the track links and being arranged within the effective width of the track links.
Patent CA-1094887-A (CA)
Inventor: DEBRICK ERIC
IPC: B60G9/02
Filed: 1978-12-06
Granted: 1981-02-03
Abstract: Abstract of the Disclosure Universally mounted wheel set where an axle housing suspension utilizes a rocking hinge principle to absorb shocks with limited up and down movement. A pair of swivel blocks are connected by trunnions to fore and aft ends of the axle assembly enabling rocking movement of the axle assembly about a longitudinal axis extending generally longitudinally of the direction of movement of the vehicle.  One of the swivel blocks is hinged to the vehicle frame.  This enables the axle housing to tilt up and down about the hinged swivel block in addition to rocking about the longitudal axis.          Cushioning springs are provided between the vehcile frame and the opposite, tiltable end of the axle assembly.  The swivel block at the tiltable end has a pair of transverse horizontal rollers at opposite sides engaged within vertical guide slots formed in mounting blocks fixed to the frame; and it is telescopically supported on the axle housing for limited fore and aft movement to compensate for arcuate movement of the axle assembly as the rollers are guided up and down within the guide slots.
Patent CA-1099301-A (CA)
Inventor: COBBS JAMES H
IPC: E21C41/18
Filed: 1979-01-10
Granted: 1981-04-14
Abstract: ABSTRACT OF THE DISCLOSURE           A method of extracting hydrocarbon from an underground strata, wherein the hydrocarbon has high in situ viscosity, by the steps of forming a vertical access hole from the earth's surface to a point below the strata, the diameter of the access hole being sufficient to permit passage of work-men and machinery, mining an elongated horizontal shaft from the vertical access hole under the strata, establishing at least one drilling station in the horizontal shaft, drilling upwardly from the drilling station a plurality of wells into the hydrocarbon strata, the wells being spaced apart and pref-erably drilled so as to be substantially vertical in the hydrocarbon strata, injecting a viscosity reducing agent into one or more of the wells to reduce hydrocarbon in the strata to free flowing liquid, withdrawing the free flow-ing hydrocarbon from the strata through one or more of the wells, and pump-ing the withdrawn hydrocarbon to the earth's surface.
Patent CA-1122410-A (CA)
Inventor: DAVIS NOEL
IPC: A01G7/00
Filed: 1979-04-05
Granted: 1982-04-27
Abstract: Abstract of the Disclosure In an apparatus and method for cultivating plant growth, a plurality of light fixtures are employed, each containing a high intensity discharge lamp.  The bulb of the lamp serves as an inner transparent wall and a globe functions as an outer transparent wall. In the space between the bulb and globe water is caused to flow in order to remove unwanted radiation and heat generated by each lamp before the radiation is transmitted into the growth chamber.
Patent CA-1131721-A (CA)
Inventor: RAST ROBERT M
IPC: H04N5/50
Filed: 1979-05-10
Granted: 1982-09-14
Abstract: Abstract A phase locked loop tuning system for a television receiver includes a reference oscillator  ,  a reference divider     for dividing the frequency of the output signal of the reference oscillator, a voltage controlled local oscillator   , a prescaler    for dividing the frequency of the output signal of the local oscillator by a predetermined factor, a programmable divider   for dividing the frequency of the output signal of the prescaler by a factor determined by the presently selected channel, a phase comparator   for generating a series of pulses representing the phase and frequency relationships between the output signal of the reference divider and the output signal of the programmable divider and a low pass filter    for deriving a control divider and a low pass oscillator in response to the pulses generated by the phase comparator.  The pulses generated by the phase comparator have polarities and widths dependent on the sense of the phase and/or frequency differences between the output signals of the reference divider and the programmable divider.  A lock detector    determines whether the pulses generated by the phase comparator have widths less than a first predetermined width at the end of a predetermined time.  If the output signal of the prescaler has an incorrect frequency in response to a temporary malfunction of a component within the loop, the pulses generated by the phase comparator will not have widths less than the first predetermined width.  In response to this occurrence, a mode switch   decouples the pulses generated by the phase comparator from the low pass filter and couples pulses having a predetermined duty cycle, a predetermined repetition rate and the opposite polarity to the low pass filter instead.  When the lock detector determines the first time one of its output pulses has a width less than a second predetermined width, narrower than the first, the pulses generated by the phase comparator are again coupled to the low pass filter.
Patent CA-1112228-A (CA)
Inventor: LABEUR LUCAS
IPC: B60R22/40
Filed: 1979-06-21
Granted: 1981-11-10
Abstract: ABSTRACT OF THE DISCLOSURE       ADJUSTABLE SENSOR RESPONSIVE TO VEHICLE ACCELERATION               A vehicle sensitive seat belt retractor including two locking pawls acting on a single ratchet wheel and operable in response to actuation of a vehicle sensitive sensor.  The pawls are positioned relative to the sensor so that the force required to lock the retractor is uni-form regardless of the direction of the acceleration. Preferably, the support for the sensor includes two mutually adjustable parts, one of which carries a ring which supports the sensor, which is preferably a ball, and the other is connected to the retractor housing.
Patent CA-1103848-A (CA)
Inventor: MIANO JEFFREY D
IPC: C08K5/00
Filed: 1979-06-25
Granted: 1981-06-23
Abstract: - ? -ABSTRACT OF THE INVENTION     Flame retarded polyurethane foams are prepared from a reactlon mixture comprising as the flame retardant additive the compound N, N'-bis(l-hydroxy-2, 2, 2-trichloroethyl) melamine or its derivatives,
Patent CA-1145256-A (CA)
Inventor: YOUNG JAMES W
IPC: A01N25/18
Filed: 1979-07-12
Granted: 1983-04-26
Abstract: CONTROLLED RELEASE FORMULATION OF DOUGLAS-FIR BEETLE ANTI AGGREGATIVE PHEROMONE, ABSTRACT OF THE DISCLOSURE    A method is described for significantly reducing Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) attacks on felled trees, through the use of the Douglas-fir beetle antiaggregative pheromone, 3-methyl-2-cyclohexen-1-one (MCH), a highly volatile and water soluble material.  Controlled release formulations of MCH can prevent the buildup of outbreak population of beetles in susceptible trees.  Five controlled-release granular formula-tions were developed that eluted 3-methyl-2-cyclohexen-1-one (MCH) in the laboratory at a rate ? 0.5 µg/hour for 60 days.  The inert components of these fomulations consisted either of a wax-coated molecular sieve, polyethylene emulsion-coated ground corncob or dimer acid polyamide beads.  These formulations and a liquid standard were applied 9 May (1975) just prior to Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) flight to plots containing single, freshly felled Douglas-fir (Pseudotsuga menziesii var. glauca) trees.  Three months later, infestation by Douglas-fir beetle and other insects was evaluated.  All treatments except coated corncobs and certain applications of the molecular sieve significantly reduced Douglas-fir beetle attacks.  Douglas-fir beetle brood in three treatments was significantly less than in controls.  Abundance of entomophagous insects was proportional to density of host beetle attacks.          Douglas-fir beetle attack density was negatively correlated with tegree of infestation by the scolytid Pseudohylesinus nebulosus (Lec.).
Patent CA-1113678-A (CA)
Inventor: OSTROWSKI RICHARD C
IPC: B28B11/00
Filed: 1979-08-28
Granted: 1981-12-08
Abstract: "MICROWAVE DRYING OF CERAMIC SHELL MOLDS"                 ABSTRACT OF THE DISCLOSURE        A method of drying a refractory slurry layer deposited on a mold pattern formed of a thermally fusible material having low heatability by subjection to microwave energy, to form a shell mold.  The mold pattern is coated with a slurry layer and is subjected to microwave energy sufficient to heat the refractory slurry.  A portion of the liquid phase of the heated slurry is withdrawn while concurrently cooling the slurry and mold pattern to maintain the mold pattern at a temperature subjacent the fusion temperature of the mold pattern material.  The mold pattern may be recoated, resubjected concurrently to microwave energy and withdrawal of the liquid phase of the slurry until the slurry is effectively dried in the mold pattern while effectively preventing undesirable thermal distortion of the mold pattern.
Patent CA-1125799-A (CA)
Inventor: DEYOUNG SIMON A
IPC: F16F9/30
Filed: 1979-09-18
Granted: 1982-06-15
Abstract: OFF-HIGHWAY VEHICLE RIDE STRUT AND METHOD  ABSTRACT         A compressible liquid ride strut includes a ported piston which reciprocates in a cylinder chamber to divide the chamber into two sections.  The piston ports provide controlled flow of liquid from one section to the other.  A valve member engages the piston upon extreme rebound strut extension to greatly diminish flow of liquid through the piston and increase the re-bound dampening rate of the strut.  The valve member is acted on by a pair of springs which hold the valve member away from the piston during normal operation and permit it to move against the piston during rebound.
Patent CA-1125528-A (CA)
Title: Immobilization of radwastes in glass containers and  products formed thereby
Inventor: MACEDO PEDRO B
IPC: G21F9/16
Filed: 1979-10-17
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to the immobilization of toxic materials, e.g., radioactive materials, in glass for extremely long periods of time.  Toxic materials, such as radioactive wastes, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are deposited in a glass container which is heated to evaporate off non-radioactive volatile materials, if present; to decompose salts, such as nitrates, if any, and to drive off volatile non-radioactive decomposition products, and then to collapse the walls of said container on said radwaste and seal the container and immobilize the contained radwaste, and the burying the resulting product underground or at sea.  In another embodiment, the glass container also contains glass particles, e.g., spheres or granules, on which the radwaste solids are deposited.  In other embodiments, the glass container can be made of porous glass or non-porous glass, and/or the contained glass particles can be made of porous or non-porous glass or mixtures of porous or non-porous glass, and/or the glass container can be open at one end and closed at the other or open at both ends, and/or the glass container can be closed at one end with a porous or non-porous closure and open at the other end or closed at the other end with a porous closure.  When a porous glass container and/or porous glass particles are used, the radwaste deposits within the pores of the glass which are closed during the subsequent heating step after non-radioactive volatiles have been driven off and prior to sealing the container.  There results a substantially impervious glass article in which the radwaste is entrapped and which is highly resistant to leaching action.  The products resulting from the use of porous glass, as the container, contents, or both, can be used as sources of radioactivity for a variety of applications in medicine, sterilization, food preservation and any other application where radiation can be beneficially employed.
Patent CA-1120806-A (CA)
Inventor: STEWART JOHN M
IPC: F24S10/70
Filed: 1979-11-14
Granted: 1982-03-30
Abstract: ABSTRACT OF THE DISCLOSURE              An improved method of making a solar energy collector is disclosed.  The method involves fusing a collector panel to headers using a high frequency magnetic field.  End fitments are also fused to the headers.  Other improvements in solar energy collectors per se are also disclosed.
Patent CA-1127868-A (CA)
Inventor: EHRAT KURT
IPC: G07D7/20
Filed: 1979-12-14
Granted: 1982-07-20
Abstract: Case 7-12153/GTS 439 ABSTRACT   A PROCESS FOR ASSESSING THE QUALITY OF A PRINTED PRODUCT         Specimens, the quality of whose print is to be examined, are scanned photoelectrically point-by-point and compared point-by-point with one or more originals. The resulting reflectance differences are processed in different correction stages and then subjected to a point-by-point threshold decision, an individual thres-hold value being used for each image point.  The thres-hold values are produced by analysis of specimens which have acceptable deviations, the maximum positive and negative reflectance differences due to their deviations being used directly as the threshold values.  The analy-sis is effected by reference to electronically simulated specimens, an original or originals and a specimen being electronically displaced relatively to one another and reflectances being electronically varied in order to simulate resister deviations and shade or tone deviations.
Patent CA-1153888-A (CA)
Inventor: UHLEMAYR REINHOLD
IPC: B41M5/132
Filed: 1980-07-02
Granted: 1983-09-20
Abstract: ABSTRACT OF THE DISCLOSURE        A recording material sheet to be written or printed upon, which is coated with a chromogenous color component which, under pressure, produces a coloring reaction in conjunction with a second reagent which contains a color developer.  The color component is provided in the form of micro-coagulated, flaky particles in a finely distributed manner upon the recording sheet, accompanied by the use of a binder.  Also disclosed is a method of producing a coating mass, containing a chromogenous color component, for application upon a recording material.  The chromogenous color component is converted into a dispersion-like form by dissolving or melting into saponifiable chemicals and subsequently emulsifying in water.  According to another embodiment for producing a coating mass containing a chromogenous color component for application upon recording material, the color component is converted into a water soluble form by chemical reaction, for example by adding organic acids, whereafter the chemically reacted color component is dissolved in water.  By adding alkali, the acid is neutralized again in such a manner that the color component precipitates finely and in a flaky form; thereafter, binders, such as starch or synthetic material dispersion are added.
Patent CA-1159923-A (CA)
Inventor: BAUMERT JEAN
IPC: C21C5/30
Filed: 1980-07-14
Granted: 1984-01-03
Abstract: A method of and an apparatus for determining the level of slag above a metallurgical melt, especially a steel melt, and for determining a physical characteristic or property of the slag, such as its viscosity or consistency, utilizes a plurality of nozzles opening into the bath-containing vessel at different levels above the melt and supplied with inert gas. The difference in hydrostatic pressures at the nozzles can be ascertained by measurement of the pressures upstream thereof and the measured values are converted into indications of slag level and consistency.
Patent CA-1161163-A (CA)
Title: Loading change-over mechanism for a video tape  recorder
Inventor: KAWAI TSUTOMU
IPC: G11B15/66
Filed: 1980-07-15
Granted: 1984-01-24
Abstract: ABSTRACT This invention relates to a loading change-over mechanism for a video tape recorder, which winds a tape onto a rotary head and allows the tape to travel by a capstan or the like to be unloaded in a stationary condition.  The loading change-over mechanism is compact, light-weight and capable of precise operation.  The device employs a loading gear ring, a transmitting gear train to rotate the ring in the direction of loading or unloading, and a group of control buttons for switching the gear train to change the rotating direction of the ring.  The gear train includes a normal rotation gear and a reverse rotation gear which can be changed over to a reference gear.  There is also a large diameter gear having swinging plates pivoted to the normal and reverse rotation gears, and permitting the rotations of these gears to be transmitted to the loading gear ring.
Patent CA-1150796-A (CA)
Inventor: BLACK ROBERT A
IPC: G05B9/02
Filed: 1980-07-29
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE         A condition control system in the form of a fuel burner control means is disclosed.  A group of relays and their associated contacts are used to control the burner means.  The status of the relays and their contacts are continuously checked by a control logic means by having the voltage on key relay out-put contacts fed into the control logic means through isolated signal transmission means.  All of the relays are capable of being deenergized in the event of the need for safety shut down as determined by the control logic means.