baber/WOPTO huggingface dataset:
Patent CA-1132750-A (CA)
Title: Epoxy resin composition and method for  making same
Inventor: DIMMICK FLOYD E
IPC: C08L63/00
Filed: 1978-09-27
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE          An epoxy resin composition which is useful for repairing concrete surfaces having an epoxy resin combined with a curing agent comprised of polyamines and phenolic accellerators.  In one embodiment, the epoxy resin is conditioned with a resin modifier comprised of glycidylethers and phenolic and phosphite accellerators prior to being combined with the curing agent.  The method for making the curing agent includes a first stage in which an aliphatic polyamine is combined with Bisphenol A and heated to 125°C for one hour and allowed to cool to room temperature and a second stage in which a second polyamine and an accellerator is added to the product of the first stage.  In one embodi-ment of the method for preparing the curing agent, phenol is added to the mixture of the first stage when the mixture has cooled to 65°C.  In another embodiment, butyl glycidyl-ether is added as the first step in the second stage to the product of the first stage prior to the addition of the second polyamine and the accellerator.
Patent CA-1073408-A (CA)
Inventor: KELLY LEONARD
IPC: B07C5/346
Filed: 1978-10-17
Granted: 1980-03-11
Abstract: METHOD AND APPARATUS FOR             SORTING RADIOACTIVE MATERIAL          Abstract of the Disclosure A method of and apparatus for sorting pieces or particles of radioactive ore where the particles are moved through the apparatus in an asynchronous or non-constant manner.  The particles are moved one at a time to a posi-tion in front of a radiation detector where they are tem-porarily stopped.  The counts from the particle are accum-ulated with respect to time.  In a control unit of the apparatus there is data representing a cut-off grade radiation rate and early upper and lower decision limits are established with regard to the cut-off rate.  As soon as the accumulated count/time ratio from the detector exceeds the upper limit or falls below the lower limit, the control unit is able to provide a decision to accept or reject the particle.  If the particles are not closely sized then the size of each particle is determined before it is positioned in front of the radiation detector and the size determination is used to modify the cut-off grade and upper and lower early decision limits.  Particles which are well above cut-off or well below cut-off (i.e. above the upper early decision limit or below the lower early decision limit) are disposed of very quickly.  Those particles having a value close to cut-off are assessed for a longer time.  A maximum assessment time is determined for the ore and accuracy required.  Because the particles may be assessed for only a short interval, the throughput is increased considerably  over prior art arrangements where the feed rate is synchronous or constant and the rate of feed is set for assessment of the smallest and most difficult particles handled.
Patent CA-1104067-A (CA)
Inventor: NULL HAROLD R
IPC: C01B3/50
Filed: 1978-10-27
Granted: 1981-06-30
Abstract: APPLICATION FOR LETTERS PATENT       FOR     METHOD FOR SEPARATING GASES     ABSTRACT OF THE DISCLOSURE         An improved process for the separation of gases by selective membrane diffusion or permeation by means of plural stages of membrane separation without increasing the work required by directing a permeant mixture from a second or later stage of separation to a recycle stage of membrane separation to  provide a permeate enriched in the desired gas or gases and blending said permeate with the gaseous feed to said second or later stage of separation.
Patent CA-1101857-A (CA)
Inventor: JIRKOVSKY IVO
IPC: C07D513/04
Filed: 1978-12-29
Granted: 1981-05-26
Abstract: Abstract of the Disclosure [1,4]Thiazino[3,4-a]isoquinoline derivatives characterized by having a lower alkyl substituent at the 11b bridgehead position are disclosed. The derivatives are antihypertensive agents. Methods for their preparation and use also are disclosed.
Patent CA-1122635-A (CA)
Inventor: CARTER BRIAN
IPC: F24H3/00
Filed: 1979-01-26
Granted: 1982-04-27
Abstract: Abstract Convector Heater A convector heater is disclosed with a cabinet 1 having a top vent 2 and a bottom vent 3 for allowing a convection flow to flow through the cabinet 1.  A heat exchanger 4 is mounted in the cabinet 1.  At least one supplementary air inlet 6, 7 in a face 8 of the cabinet 1 for allowing supplementary air to enter the cabinet 1 and supplement convection air flow induced in the cabinet 1 by the heat exchanger 4.
Patent CA-1092775-A (CA)
Inventor: LEECH BRAD G
IPC: F28F9/00
Filed: 1979-02-26
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE          Apparatus for joining a sheet to a structural member ang?ed therefrom which includes forming an indented portion in the sheet as well as a slot such that a clip having a tail section, a body section and a head section may be inserted such that the tail section extends through the slot and the head section extends beyond the end of the sheet such that the head section and the tail section are on one side of the sheet and the body section is on the same side of the sheet as the indented portion.  The clip head has a screw opening such that a screw may be inserted through the member to which the sheet is to be joined into the clip head.  Upon tightening the screw a support surface on the clip tail engages the sheet at the slot and the screw threads engage the interior surface of the indented portion of the sheet thereby securing the sheet to the screw and consequently the member through which the screw extends.  The clip head may also have contact surfaces such that the clip body may be deformed against the indented portion of the sheet and held in a deformed stressed position by the contact surfaces thereby securing the clip to the sheet prior to the insertion of the screw.  This joint has particular application for aluminum tube sheets used with aluminum heat exchangers when the tube sheets are mounted to a bracket perpendicular to the ends thereof.
Patent CA-1114255-A (CA)
Inventor: NISHIMURA HIROYUKI
IPC: F02M25/07
Filed: 1979-03-06
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for controlling introduction of gas into a passage of an internal combustion engine employs a first control valve in a gas intro-duction passageway, a second control valve in an air conduit connecting the intake passage to atmosphere, and a regulating valve responsive to vacuum intensity in the intake passage.  The regulating valve actuates vacuum responsive actuators for the control valves.  This system is used for recir-culating exhaust gases into the intake passage, for introducing supplementary atmospheric air into the intake passage to modify the air-fuel ratio in accordance with atmospheric pressure reduction at high altitudes, and for controlling the introduction of atmospheric air into the exhaust passage upstream from a catalytic converter or reactor.
Patent CA-1119050-A (CA)
Inventor: CIOFFI PAUL L
IPC: F23D1/00
Filed: 1979-03-16
Granted: 1982-03-02
Abstract: WATER COOLED BURNER NOZZLE FOR SOLVENT REFINED COAL             Abstract of the Disclosure A burner nozzle for solvent refined coal (SRC) is disclosed having means for removing heat which is adequate to maintain the exterior temperature of the burner nozzle below the level at which deposition of SRC residue has been observed.  A specific embodiment comprises a water jacket about a tubular nozzle, the fuel outlet end being tapered t an edge at the fuel outlet end.  The water jacket is provided with circumferential channels for circulating cooling fluid in a circuitous path around the nozzle.  The channels are sized so that maximum flow velocity, and therefore maximum convective heat transfer, is maintained a the tapered edge.
Patent CA-1146691-A (CA)
Inventor: GERLACH KLAUS
IPC: C08G18/10
Filed: 1979-03-23
Granted: 1983-05-17
Abstract: Abstract A process for the preparation of a polyurethane which comprises reacting an excess of an aromatic diisocyanate with a mixture of castor oil and trimethylol propane to obtain an NCO group-containing pre-adduct and cross-linking the pre-adduct using a castor oil or a mixture of castor oil and trimethylol propane.        The present invention further relates to a polyurethane obtainable by such a process.        An embedding process which comprises embedding a material to be embedded in such a polyurethane and hardening the polyurethane is also disclosed as is a material when embedded by such a process or an apparatus comprising such a material.
Patent CA-1118039-A (CA)
Title: Generateur au lithium
Inventor: ARMAND MICHEL B
IPC: H01M4/58
Filed: 1979-03-23
Granted: 1982-02-09
Abstract: L'invention concerne un générateur électrochimique comportant une électrode positive, une électrode négative en contact avec une électrode organique liquide imprégnant un séparateur poreux, caractérisé par le fait que ladite électrode positive comporte un composé actif de formule générale Li2Fe2S z, z étant au moins égal à 3.
Patent CA-1099506-A (CA)
Inventor: RUDY MARION F
IPC: A43B13/26
Filed: 1979-03-30
Granted: 1981-04-21
Abstract: ABSTRACT OF THE DISCLOSURE            A shoe embodying a multiple chambered pneumatically inflated insert encapsulated in a wieldable foam which acts as a bridging moderator filling in irregularities of the insert and providing a substantially smooth and contoured surface for supporting the foot in a comfortable manner.  The encap-sulated insert can be used as an inner sole slipped into an existing shoe, or it can be used as an integral, composite midsole or outsole portion of a shoe.
Patent CA-1177836-A (CA)
Title: 4,5-bisphenyl-2-sulphur containing imidazole  compounds
Inventor: NIEDBALLA ULRICH
IPC: C07D409/04
Filed: 1979-05-23
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE This invention provides a compound of the formula   (I) in which Ar1 and Ar2, which may be the same or different, each represents a phenyl radical, unsubstituted or substituted by one or more of the same or different substituents selected from a halo-gen atoms, alkyl radicals containing 1 to 4 carbon atoms, alkoxy radicals containing 1 to 4 carbon atoms and dialkylamino radicals containing 2 to 6 carbon atoms; provided that both of the sub-stituents represented by Ar1 and Ar2 are not unsubstituted phenyl groups, R1 represents a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms, n represents 0, 1 or 2, and Z represents an alkyl radical having 1 to 6 carbon atoms having additionally one or two of the same or different functional groups selected from hydroxy groups, alkoxy radicals containing 1 to 4 carbon atoms, alkylenedioxy radicals containing 2 to 4 carbon atoms, acyloxy radicals containing 1 to 4 carbon atoms, and alkoxycarbonyl radi-cals containing 2 to 5 carbon atoms, alkenyl containing 2 to 4 carbon atoms which may be substituted with hydroxy; or alkynyl containing 2 to 4 carbon atoms and which may be substituted with hydroxy, there being no more than one alkoxycarbonyl radical pre-sent and the total number of carbon atoms in Z being at least 2, or a pharmaceutically acceptable salt thereof.  These compounds have anti-inflammatory and antiallergic activity.
Patent CA-1113603-A (CA)
Inventor: TABATA HIROMU
IPC: G11B5/027
Filed: 1979-05-29
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE     The invention provides a method of automatically esta-blishing the proper adjustment of biasing current for recording sound with a three-head type tape-recorder which is equipped with a separate recorder head, reproducer head and eraser head, so that sound which is recorded by the recorder head on a running magnetic tape may be immediately reproduced by the reproducer head immediately downstream of the recorder head, the method com-prising the steps of:  generating a composite calibration signal by mixing a lower frequency signal and a higher frequency signal, having sound level identical with each other, recording the com-posite calibration signal while chronologically consecutively altering the intensity of biasing current for the recording, immediately reproducing the recorded composite calibration signal on the running tape, filtering off the reproduced composite cali-bration signal to obtain the component lower and higher frequency signal outputs, comparing output sound levels of the filtered lower and higher frequency signals with each other, and stopping any further altering the recording bias current intensity upon finding, as a result of the comparison, that the output sound levels of the filtered lower and higher frequency signals have become substantially identical with each other or that the output sound level difference has just been substantially reversed, namely that the output sound level of the one component signal, initially having lower output sound level than the other, has just become substantially higher than that of the other.  Thus, optimum adjustment of biasing current for recording is achieved to obtain sound reproduction frequency characteristics with the widest flat range, automatically, accurately and rapidly, after manually only setting the tape-recorder in the recording mode.
Patent CA-1136780-A (CA)
Inventor: DECOURSEY CALVIN H
IPC: H04J3/06
Filed: 1979-06-14
Granted: 1982-11-30
Abstract: A B S T R A C T            Simple and reliable decoding of T-1 type pulse code information is achieved by combining a fast-acting recirculating frame recovery circuit with a simplified signal output register.  The frame recovery circuit uses a recir-culating 386-bit control word in which all positions which cannot be the main-frame bit position are continuously recorded by the continuous comparison of pairs of incoming data bits spaced 386 bits apart.  Following a sufficient number of iterations of the control word to statistically identify all 385 non-main-frame-bit positions with a nigh degree of probability, the remaining unidentified position is read out as the main-frame bit position, and is used to reset the frame clock generator.  The signalling pulses recovered from the correctly framed data train are distributed to the proper channel relays by a simplified output circuit which loads the signalling bits into a buffer register at a slow rate dictated by the data train parameters, then unloads the buffer register into the output latches at a rate suf-ficiently fast to make it impossible for the channel relays to spuriously respond to momentary invalid signals occurring during the unloading process.
Patent CA-1102849-A (CA)
Title: Self-cleaning cooling air inlet for an engine enclosure
Inventor: VOGELAAR BERNARD F
IPC: B01D46/26
Filed: 1979-06-20
Granted: 1981-06-09
Abstract: SELF-CLEANING ROTARY FILTER FOR THE COOLING      AIR INLET OF AN ENGINE ENCLOSURE              Abstract of the Disclosure The engine of a self-propelled combine is mounted in an enclosure having an inlet through which cooling air is drawn by an engine-driven fan.  The air is filtered by a rotating disk-like screen mounted over the air inlet before passing through a radiator adjacent the inlet.  A duct extends across the face of the disk from its center to periphery, changes direction and terminates with an open end adjacent the inlet side of the fan by-passing the radiator.  The duct is also open adjacent the face of the screen so that the fan draws air through the duct, (some of the air being necessarily drawn from inside the screen as it passes the duct opening) so that foreign material filtered from the mass of cooling air being drawn through the unobstructed portion of the screen and held on the screen exterior surface is removed and carried through the duct.  A trash knife rigidly attached to the periphery of the screen extends outwards parallel to the screen's axis of rotation.  The knife is shielded by and travels within an annular channel-like shroud as the disk rotates.          The shroud is connected with and intersects the duct so that as the screen rotates the knife passes through the duct, closely adjacent a shear bar supported there.  The knife cuts or dislodges any foreign material lodged in the duct where it changes direction so that it may continue its passage carried by the air flow through the duct.  A relatively flexible material with a high percentage open area is used for the filter element of the screen and is held taut by a compression spring pressing outwards on a thrust washer at the center of the screen to form it into a shallow cone.
Patent CA-1096638-A (CA)
Inventor: SCHROCK MARTIN O
IPC: A01D34/416
Filed: 1979-07-05
Granted: 1981-03-03
Abstract: 78F-3052 IMPROVED GRASS TRIMMER DEVICE A portable, cordless, electrically energized grass trimming device is disclosed having a rotary cutter blade which is formed of a flexible strip of material and which is mounted for rotation over a predetermined course.  A blade stabilizing means is provided for restraining the blade along a segment of its length for maintaining rotary motion of the blade in the predetermined course upon impact with other objects.  The flexibility of the blade is enhanced by mounting the blade for rotation over a course described by a curved surface of revolution and blade durability is improved by providing a means for absorbing impact shock when the blade strikes an object.  An improved blade is described having integrally formed resilient means for absorbing the shock of impact.
Patent CA-1135903-A (CA)
Inventor: MCCORMACK JOHN F
IPC: C23C18/52
Filed: 1979-07-12
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE There is provided a method for increasing the useful effective plating rate of an electroless copper deposition solution which comprises copper ion, a complexing agent for copper ion, a reducing agent and a pH adjustor and which is characterized by a plating rate which first increases and passes through a peak plating rate and then decreases as a function of a pH above 10.  In accordance with this invention, the plating rate of such a solution may be significantly increased by operation thereof in, the presence of an accelerating or depolar-izing agent at a pH to achieve a plating rate above the plating rate of the solution without such an agent at the same pH.  The accelerating or depolarizing agents for use herein include compounds containing a delocalized pi-bond, such as heterocyclic aromatic nitrogen and sulfur compounds, non-aromatic nitrogen compounds having at least one delocalized pi-bond, and aromatic amines.
Patent CA-1133083-A (CA)
Inventor: FREY SYDNEY W JR
IPC: H01C10/26
Filed: 1979-08-30
Granted: 1982-10-05
Abstract: RHEOSTAT TRIMMER              Abstract of the Disclosure A rheostat (10) has a disk-shaped base (11) that is slidably mounted between a pair of spaced terminal pins (12, 13).  A resistance track (14) is disposed on top of the base (11) and is connected to a collector track (15) that is disposed around the circumference of the base (11).  A collector terminal pin (12) has contacts (12d) in sliding engagement with the collector track (15), and a wiper terminal pin (13) has an oblique contact surface formed by projections (13g) that slidably engage the resistance track (14).  The terminal pins (12, 13) can be mounted on a supporting suface, so that as the base (11) is rotated, the resistance between the terminal pins (12, 13) is varied.  The oblique contact surface on the wiper terminal pin (13) aids in maintaining a balanced current distribution in the resistance track (14).
Patent CA-1106753-A (CA)
Inventor: CARRIERI LOUIS F
IPC: B30B15/02
Filed: 1979-09-21
Granted: 1981-08-11
Abstract: GAl-4P-5920-1 SHOCK DAMPENING SYSTEMS       FOR PRESSES                Abstract of the Disclosure A hydraulic fluid shock dampening system is disclosed for a shearing press to minimize shock and vibration imposed on the press following breakthrough of the material being sheared by cutting die components carried by the press bed and slide.  The system includes cylinder and piston units interposed between the press bed and slide each providing a variable volume fluid receiving chamber from which fluid under pressure is expelled during movement of the slide to-ward the bed to achieve a shearing operation.  A flow sensitive shutoff valve is responsive to accelerated movement of the slide upon breakthrough to block fluid flow from the chambers and thus restrain further slide movement toward the press bed. In preferred structural embodiments of the system, the cylinder and piston units, shutoff valve and fluid pressure accumulator components are structurally associated with a bolster plate mountable on a press, or with die components mountable on a bolster plate.
Patent CA-1115795-A (CA)
Inventor: KOTSKI EDWARD J
IPC: H01R13/648
Filed: 1979-12-27
Granted: 1982-01-05
Abstract: FLEXIBLE ELECTRICAL CONNECTOR ASSEMBLY                 ABSTRACT OF THE DISCLOSURE        An electrical connector and cable assembly comprising a predetermined length of cable and a pair of opposed flexible connector sections at each end thereof adapted to be separably engaged respectively with corresponding flexible connector sections on other connector cable assemblies to form an electrical cable of required size.  Each opposed flexible connector section includes electric contact members connected to a live conductor or a plurality of live conductors in its associated cable with the contact members being adapted to engage complementary contact members in a connector section associated with another cable to form a connector assembly therebetween when the sections are matingly engaged thereby joining the live conductors together.  A flexible ground strap is spirally wound or wrapped about the complementary engaged sections after joinder thereof, the strap being disposed within a complementary spiral recess in the encasement formed by the engaged sections, and is then connected at each of its ends to the respective ground conductors in each section through corresponding terminals seated within the spiral recess.
Patent CA-1141654-A (CA)
Inventor: KYDD PAUL H
IPC: E21B43/24
Filed: 1979-12-28
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE         The recovery of heavy crude oils and tars from sub-terranean oil bearing formations is enhanced by the injection of pressurized and heated hydrocarbon vapor into a single well drilled into the formation.  Condensation of the hydro-carbon vapor heats the heavy oil and tars entrapped in the formation and dilutes the oil so as to decrease its viscosity and enhance its flow into a lower portion of the well.  The oil and solvent collected are removed to the surface by pumping.  The preferred  hydrocarbon vapor is a low boiling fraction derived by distillation of the oil recovered from the formation, however, some stable externally-produced aromatic hydrocarbon vapors of high solvent power such as benzene or toluene or mixtures thereof may also be used and reclaimed from the oil by distillation.
Patent CA-1149296-A (CA)
Inventor: DE JONG HENDRIK E
IPC: C11D3/386
Filed: 1980-02-05
Granted: 1983-07-05
Abstract: C 568 (R) Abstract of the Disclosure The invention pertains to the fabric-cleaning art.            Aqueous, liquid laundry pre-spotting compositions are provided comprising a nonionic detergent, an organic solvent, water, enzymes and an alkanolamine.            These compositions are clear, stable and isotropic and are efficaceous against fatty and proteinaceous soils.
Patent CA-1135263-A (CA)
Inventor: GANTE JOACHIM
IPC: C07D417/06
Filed: 1980-04-28
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE        Phenothiazine derivatives of the formula   wherein R is H, F, C1, Br, I, CH3, CF3, CN, CH3O or CH3CO;          Y is S, SO, or SO2; Z is imidazol-1-yl, 2-methyl-imidazol-1-yl, pyrazol-1-yl or benzimidazol-1-yl; and n is 1, 2 or 3; or the physiologically acceptable acid addition salts thereof; are useful as antihypertensive agents, for example.