baber/WOPTO huggingface dataset:
Patent CA-1216594-A (CA)
Inventor: PAGANI GIORGIO
IPC: C07C273/04
Filed: 1983-06-06
Granted: 1987-01-13
Abstract: A B S T R A C T          A process for the displacement, at 80 ? 250 kg/cm2, of the NH3 excess contained in urea solutions having a temperature Or 150 ? 230°C and coming from a former stripping (isoba-ric with the synthesis of urea), performed in the presence of NH3, wherein said solutions contain also CO2, in amounts lower than 25% b.w. with respect to urea, and wherein said displacement is performed in countercurrent with CO2, within  a falling-film heat-exchanger containing a tube bundle (CO2 stripper), isobaric with said synthesis, the amount of ammonium carbamate in the solution leaving the bottom of the CO2 stripper being substantially equal to the amount of ammonium carbamate in the solution entering the same stripper, characterized in that: a) the global NH3 : CO2 ratio, in the solution fed to the CO2 stripper, is from 2 to 8 b.w.; b) heat is substantially supplied only to the uppermost portion of the tubes of the CO2 stripper, wherein the ratio between the surface of the lowermost portion and the surface of the uppermost portion of the tubes is at least 1:1 and wherein the ratio between the residence time of the solution to be stripped in said lowermost portion and the residence time in said uppermost por-tion is at least 1:1, said residence time in the lower-most portion of the tubes being at least 3 s and said residence time in the uppermost portion being at the most 3 s.
Patent CA-1208493-A (CA)
Inventor: WIERNICKI MICHAEL V
IPC: F04B17/04
Filed: 1983-06-22
Granted: 1986-07-29
Abstract: ABSTRACT OF THE DISCLOSURE         A low cost electromagnetic fluid pump having molded structural plastic housing components, a biased reciprocating hollow piston, and a pair of plastic flapper valves providing for a unidirectional fluid flow is disclosed.  An integrated circuit timer periodically energizes a solenoid coil producing an oscil-lating magnetic field reciprocating the piston.
Patent CA-1198277-A (CA)
Inventor: SAKABE YUKIO
IPC: C04B35/47
Filed: 1983-07-08
Granted: 1985-12-24
Abstract: ABSTRACT OF THE DISCLOSURE          Dielectric ceramic composition containing by weight, 33% to 40% of PbTiO3; 6% to 35% of SrTiO3; 3% to 18% of CatiO3; 0.5% to 10% of MgTiO3; 6% to 26% of Bi2O3; 3% to 15% of TiO2; 0.2% to 4% of ZnO; 0.2% to 5% of Nb2O5; 0.1% to 4% of CeO2 and 0.1% to 2% of Al2O3.
Patent CA-1205114-A (CA)
Inventor: HARTNETT MICHAEL J
IPC: F16C33/36
Filed: 1983-07-25
Granted: 1986-05-27
Abstract: ROLLER BEARING WITH SPECIALLY CONSTRUCTED ROLLERS               ABSTRACT OF THE DISCLOSURE along Each roller in a roller bearing has varying diameters ~long its length.  The longitudinal surface is formed along varying radii of curvature.  The diameters are functions of the contact stress along the roller, the length of the roller, any angular misalignment, and the effective diameter of the bearing.  The varying diameters are such that a uniform contact stress is placed on each roller.    If desired instead of the rollers, a race may be shaped to cause the uniform contact stress.
Patent CA-1224221-A (CA)
Inventor: CLAUSING DON P
IPC: B65H7/12
Filed: 1983-08-04
Granted: 1987-07-14
Abstract: ABSTRACT OF THE DISCLOSURE A retard feeder and separator apparatus adapted to sense the threat of a misfeed or multifeed and adjust the stack normal force of a feed belt against a stack of sheets accordingly. The apparatus includes a movable frame on which is mounted a sheet separating feed belt, a retard roll that forms a retard nip with the separating feed belt, and a stack force relief sensor. The sensor detects the lead edge of a sheet fed from a stack as it reaches the retard nip and causes a solenoid connected to the frame to trigger and move the frame slightly. The frame movement relieves the stack normal force of the feed belt against the stack from a high value to a low value while the sheet continues to be fed from the stack by the force in the retard nip and the lessened stack normal force. Alternatively, if the sensor does not sense a sheet within a predetermined period of time, the stack normal force will be increased to the original high value.
Patent CA-1203337-A (CA)
Inventor: DUFOUR DANIEL L
IPC: C08L33/00
Filed: 1983-08-08
Granted: 1986-04-15
Abstract: 08-12-1351A POLYBLENDS OF THERMOPLASTIC COPOLYETHERESTERS STYRENE-MALEIC ANHYDRIDE POLYMERS, AND ACRYLONITRILE-BUTADIENE-STYRENE POLYMERS ABSTRACT Molding compositions are prepared from blends of (A) a thermoplastic copolyetherester elastomer; (B) a styrene maleic anhydride polymer; and (C) an ABS or MBS polymer. Component B, the styrene maleic anhydride poly-mer may optionally contain a termonomer such as methyl-methacrylate or acrylonitrile and a rubber component.
Patent CA-1204284-A (CA)
Inventor: MORI KEI
IPC: A01K69/00
Filed: 1983-08-11
Granted: 1986-05-13
Abstract: ABSTRACT           A fishing net includes a photoconductive cable comprising a plurality of optical fibers having light-emitting portions, wherein said light-emitting portions are divided into a first group adapted to emit light having an attracting influence upon fish and a second group adapted to emit light having a repelling influence upon fish.  The direction of light emanating from said first group of light-emitting portions is opposite to that of light emanating from said second group of light-emitting portions.
Patent CA-1205983-A (CA)
Inventor: STONE ALAN M
IPC: E21B/
Filed: 1983-08-22
Granted: 1986-06-17
Abstract: ABSTRACT OF THE DISCLOSURE      An introduction process and apparatus is described concerning the continuous elution of a value, i.e. a metal value such as gold, from a particulate carrier by a counter-flow of stripping liquid through the pressurized vessel in which the loaded particulate carrier is introduced to the vessel as a low velocity plug in a liquid carrier.  The extraction process is also used with the continuous elution process in which the particulate material is extracted from the bottom part of a pressure vessel through a dis-charge pipe extending therefrom and in which a discharge liquid is introduced into the discharge pipe upstream of the discharge end under such pressure as to maintain a head of the discharge liquid upstream of that location and a flow of the liquid downstream from the location to transport the particulate material through the discharge pipe.  The length of the pipe allows a pressure drop in the particulate material whereby it is discharged at ambient pressure without mechanical working of the material and the discharge liquid may also act to cool the material.
Patent CA-1202729-A (CA)
Inventor: WALLACE DAVID A
IPC: G06F13/36
Filed: 1983-09-02
Granted: 1986-04-01
Abstract: ABSTRACT OF THE DISCLOSURE           A multi-processor computer system is dis-closed in which processing elements, memory elements and peripheral units can be physically added and removed from the system without disrupting its operation or necessitating any reprogramming of software running on the system.  The processing units, memory units and peripheral units are all coupled to a common system bus by specialized interface units.  The processing elements are organized into partially independent groups each of which has dedicated interface units, but the processing units share system resources including peripherals and the entire memory space.  Within each processing ele-ment group at any one time, group supervisory tasks are performed by one of the processors, but the supervisor function is passed among the processors in the group in a sequence to prevent a fault in one processor from disabling the entire group.  Communcation between groups is accomplished via the common memory areas.          The transfer of the supervisory function from pro-cessor to processor is performed by registering the supervisor's identity in a common area in one of the dedicated interface units which area is accessable to all processors in the associated group and using pro-gram interrupts generated in the common interface unit to communicate between group processors.  Access to the common system bus by the processing elements is controlled by the associated interface units by means of a combination serial/parallel arbitration scheme which increases arbitration speed without requiring a full complement of request/grant leads.
Patent CA-1201455-A (CA)
Inventor: MALIN JOHN L
IPC: E02F3/92
Filed: 1983-10-31
Granted: 1986-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    An elongated tubular member including inlet and outlet end sections is provided and each section includes inlet and outlet ends.  The inlet end of the outlet section and the outlet end of the inlet section include coacting structure universally coupling those ends together for limited universal rela-tive angular displacement about infinite axes extending substantially normal to the center axes thereof and for rotational angular displacement of the inlet section about its center axis relative to the outlet section while maintaining a good fluid seal between the universally connected ends of the sections.  Hand-grip structure is carried by the inlet section and projects laterally outwardly therefrom.  The universally connected ends of the sections are coupled together through the utilization of a hollow partial spherical bell terminal end on one of the ends and a hollow partial spherical bulbous terminal end on the other end universally received within the bell terminal end.
Patent CA-1227630-A (CA)
Inventor: GAY RICHARD L
IPC: G21F9/32
Filed: 1984-01-06
Granted: 1987-10-06
Abstract: Abstract The volume of low-level radioactive wastes containing free water is reduced by introducing the waste as a finely atomized spray into a zone heated by means of a hot gas.     Contact of the spray particles with the hot gas results in the production of a dry, flowable radioactive solid product and a gaseous non-radioactive product which contains substantially no NOx or SOx and no volatile radionuclides, which are retained in the solid product.
Patent CA-1208244-A (CA)
Inventor: DESMARAIS ARMAND J
IPC: C04B24/38
Filed: 1984-01-31
Granted: 1986-07-22
Abstract: TILE MORTARS                 Abtract of the Disclosure Improvements in ceramic wall and floor tile mortars are effected by incorporating therein at least one hyroxypropyl-hydroxyethylcellulose having specified substitution levels as a water retention aid or thickener.
Patent CA-1243677-A (CA)
Inventor: SCHICKANEDER HELMUT
IPC: C07C239/00
Filed: 1984-02-23
Granted: 1988-10-25
Abstract: A B S T R A C T The invention relates to a new multistage process for the production of 4-amino-6,7-dimethoxy-2-[4-(furo-2-yl)-piperazin-1-yl]-quinazoline corresponding to the following formula and physiologically compatible salts thereof, which gives better yields and uses less expensive and more reactive materials than known processes. The intermediate product formed in this process, N''-cyano-N'-(3,4-dimethoxyphenyl)-0-phenylisourea, shows antihypertensive activity on its own. 3838
Patent CA-1225595-A (CA)
Inventor: GRAHAM NEIL B
IPC: A61K9/20
Filed: 1984-03-01
Granted: 1987-08-18
Abstract: C A N A D A            S P E C I F I C A T I O N     TO ALL WHOM IT MAY CONCERN:     Be it known that I, NEIL BONNETTE GRAHAM, a dual U.K. and Canadian Citizen of 6, Kilmardinny Grove, Bearsden, Glasgow, Scotland G61 3NY have invented certain new and useful improvement in HYDROGEL-CONTAINING ENVELOPES and the following disclosure contains a full description of the invention and of the best mode known to the inventor for taking advantage of same.             ABSTRACT OF DISCLOSURE    An envelope having flexible water-permeable or porous walls contains a quantity of particulate water-insoluble hydrogel.  The quantity of hydrogel in the envelope is such that, when the hydrogel is fully swollen at 20°C, its volume is at least 66%, preferably at least 100%, of the maximum non-stretched internal volume of the envelope.  Thus, the envelope according to the invention is limp and floppy under dry conditions but in a wet environment the hydrogel absorbs water and sells accordingly causing the envelope to swell and take on a more rigid configuration.  The envelope is particularly useful for the administration of sustained release pharmaceutically or veterinarily  active ingredients. Thus the limp dry envelope may for example be rolled up for introduction through the throat but will swell up and therefore be retained in the stomach for sustained release of the active ingredient therein.
Patent CA-1214059-A (CA)
Title: Automatic focussing camera with automatic aperture  setting
Inventor: WINTER ARTHUR J
IPC: G03B7/16
Filed: 1984-03-21
Granted: 1986-11-18
Abstract: ABSTRACT           An electrically operated flash camera employs an infrared pre-flash reflected light signal stored in a single memory storage to control focus and aperture.  Two comparators serve to govern both operations, sensing potentiometrically derived analog position indicating signals representing lens position and aperture setting as the lens and aperture control elements are scanningly driven through their ranges of settings.  Comparison of these analog signals with the stored signal is used to terminate scanning to set focus and aperture.  A visible light photosensing means controls aperture and inhibits the exposure flash if ambient illumination is adequate.
Patent CA-1243812-A (CA)
Inventor: KASSAI DENES P
IPC: F16H61/46
Filed: 1984-05-14
Granted: 1988-11-01
Abstract: ABSTRACT OF THE DISCLOSURE      A hydrostatically operated vehicle, such as a street sweeper, includes an engine driven reversible hydrostatic pump coupled to a single hydrostatic pump driving wheels of the vehicle. The pump is shiftable from neutral to reverse and forward, low and high speed positions, and the hydrostatic motor is controlled between low and high speed positions with a metering valve automatically adjusting the motor speed in response to variation in reaction torque between the drive wheels and the ground.  The vehicle also includes a reversible hydrostatic component drive system for powering motors which drive an elevator, pick-up broom and two gutter brooms in a forward working direction and which may be reversed for clearing debris jams by reversing the pump.  The component drive system in-cludes valve means for selectively driving the gutter brooms and for holding the gutter brooms inactive when the pump is driven in reverse.
Patent CA-1216475-A (CA)
Inventor: HAMPTON JAMES E
IPC: B63B21/50
Filed: 1984-06-20
Granted: 1987-01-13
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to a seal for a locker receiving anchor or mooring chain on a floating vessel.  The sealing arrangement includes a hawse pipe opening and sliding gate members which can be operated to close the opening. An elastomeric material is disposed on the gate members to fit around and sealingly engage a link of the chain to sealingly enclose the opening.  The device further includes means adapted to ensure that the chain is located with its links in an appropriate position with respect to the opening. The invention thus provides a watertight seal around the anchor chain where it passes through the chained locker hawse pipe.  Thus, the invention prevents progressive down flooding which might lead to instability in an extreme case.
Patent CA-1223680-A (CA)
Inventor: BOETTLE DIETRICH
IPC: H04Q11/04
Filed: 1984-06-26
Granted: 1987-06-30
Abstract: Abstract of the Disclosure Integrated Communication System An integrated communication  system (e.g. , BIGFON) in-cludes the narrow-band telephone network and a super-posed video-telephone network. The path search for setting up calls in the telephone network is carried out with the said of the telephone call numbers. To permit a video-tele-phone network structure independent of the structure of the telephone network, each subscriber of the video-tele-phone network must be assigned a separate video-telephone call number for the path search in the broadband network. In order that a subscriber does not have to dial two different numbers to set up a video-telephone call, each exchange (V1, V2) of the communication system includes a mapping circuit (ZS) which establishes for each video-telephone subscriber (TEA, TEB) a correspondence between his or her telephone call number and a video-telephone call number serving to set up calls in the video-telephone network. This video-telephone call number can be called up from the mapping circuit (ZS) via the telephone net-work (FN).     (Fig.1)
Patent CA-1217862-A (CA)
Inventor: VANDYKE HARRY
IPC: G01R31/28
Filed: 1984-07-04
Granted: 1987-02-10
Abstract: ABSTRACT OF THE DISCLOSURE An off-highway vehicle systems simulator and control panel testing apparatus produces electrical signals that simulate the electrical signals generated by detectors on the vehicle when it is operating. The electrical signals are generated from four direct current power supplies and an AC frequency generator. The signals are directed to specific circuits within the control panels by a plurality of switches that essentially route the signals to specific pin locations on the control panel. The control panel is electrically coupled to the simulator by a harness having multipin plugs and multipin connector elements. Analog and digital monitors measure the output of the so treated panels, which is compared to outputs for correctly operating panels. Indicator lights are used to determine the status of the simulator and various circuits in the control panel.
Patent CA-1230458-A (CA)
Inventor: GELLERT JOBST U
IPC: B29C45/27
Filed: 1984-07-13
Granted: 1987-12-22
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to an improved heated nozzle for injection molding and an improved method of manufacturing it.  The nozzle has an elongated body with a melt bore extending generally centrally through it.  The cylindrical outer surface of the body has a variable pitched spiral channel extending around it along its length.  A helical electric heating element is embedded in the channel to form an integral structure by which the temperature of the hot melt can be maintained within a narrow range as it flows through the bore.  The nozzle is manufactured by forming the body with the channel and bore either by investment casting or machining.  The heating element is wound in the channel and a bead of nickel  brazing paste is run along the top of it.  The nozzle is then heated in a vacuum furnace to braze the heating element in the channel.  The highly conductive nickel completely covers the heating element and is fused to both the heating element and the walls of the channel. Thus, a low cost integral nozzle is provided which during use efficiently dissipates heat from the element to prolong its effective life, and applies the heat uniformly along the melt bore.
Patent CA-1246925-A (CA)
Inventor: GORIN BRIAN A
IPC: G03C5/44
Filed: 1984-07-30
Granted: 1988-12-20
Abstract: PROCESS FOR MAKING HIGH EFFICIENCY PHASE HOLOGRAMS            Abstract of the Disclosure A method for producing a phase hologram having a high diffraction efficiency which includes treating a developed photographic material with a stop bath containing sodium sulfate, bleaching with a tanning bleach having a low pH value and fixing the bleached material in a bath containing sodium thiosulfate.
Patent CA-1245194-A (CA)
Inventor: PENNOCK THOMAS G
IPC: B65D27/00
Filed: 1984-07-30
Granted: 1988-11-22
Abstract: ABSTRACT OF THE DISCLOSURE           A continuous business form assembly provides  for printing internal and external information on a single web in one, single-sided printing operation.  Label portions cut in the forms are foldable for the printing.  Attachment sheets and  adhesive  return  the  label  portions  to  sealed,  label positions where label information is external to the forms.
Patent CA-1215677-A (CA)
Inventor: MUELLNER PAUL
IPC: C22B34/12
Filed: 1984-08-15
Granted: 1986-12-23
Abstract: ABSTRACT OF THE DISCLOSURE:     In a method of producing metals or metal alloys by reducing their halides in a hydrogen plasma, a plasma jet reaction zone is built up from the vaporized metal halides contained in the plasma gas together with hydrogen, and the molten metal formed gets from the plasma jet reaction zone into a mould arranged therebelow. An arrangement for carrying out this method in-cludes a reaction vessel whose upper part has a reaction space for the metal halide to be reduced and hydrogen-containing plasma gas, and a plasma lance arranged centrally in the reaction vessel, the metal formed getting into the lower part of the reaction vessel forming a metal sump therein.
Patent CA-1264530-A (CA)
Inventor: FREDRIKSSON RUNE
IPC: B21J15/02
Filed: 1984-10-23
Granted: 1990-01-23
Abstract: ABSTRACT      A method for attaching a first plate (2) of a first metal, such as titanium, alloy steel or a similar material, to a second plate (4) of a second metal.  A hole (6) is made in the plates and a pin shaped attaching member (8,10) of the first metal, or a metal weldable thereto, is introduced into the hole so that it cannot move axially outwardly from the first plate.  One end of the attaching member has been provided with a sidewardly bendable edge portion (14) and the attaching member is introduced into the hole (6) so that this end extends above the first plate (2).  This edge portion (14) is then bent over sidewardly in a direction towards the surface of the first plate so that the plates are drawn together around the hole by the reaction force.  The edge portion is finally welded to the first plate.
Patent CA-1221377-A (CA)
Inventor: CROCHEMORE MICHEL
IPC: C07C233/16
Filed: 1984-11-08
Granted: 1987-05-05
Abstract: N,N'-bis(2-hydroxyethyl)oxamide is facilely prepared, e.g., in finely divided crystalline form, by reacting an alkyl oxalate with ethanolamine in an aqueous reaction medium.
Patent CA-1224642-A (CA)
Inventor: NICHOLS ROBERT A
IPC: A61B5/00
Filed: 1984-12-07
Granted: 1987-07-28
Abstract: PROBE MONITORING SYSTEM FOR OXIMETER                  ABSTRACT OF THE DISCLOSURE       A monitor system for an oximeter that sequentially tests the operative conditions of light emitting devices of the oximeter, the light detector of the oximeter, and the reference voltage of the oximeter.  Data processing means is responsive to the determined test values for indicating the occurrence of the test values outside of predetermined ranges corresponding to the respective test value.
Patent CA-1220523-A (CA)
Inventor: FREILICH ARTHUR H
IPC: G01N27/07
Filed: 1984-12-19
Granted: 1987-04-14
Abstract: ABSTRACT A disposable low cost electrode structure for measuring platelet aggregation in whole blood or PRP which utilizes con-ductive ink or foil for the electrodes with the electrode pat-tern printed, heat-stamped or silk-screened onto a suitable plastic non-reactive base. The base material can be any material which does not react with blood and is stiff enough, for ex-ample a polycarbonate, while the conductive element can be made with a silver conductive ink.  The electrodes can be on one or both sides of the base or substrate material. Platelet aggregates start and build up on the leading edge of a narrow body inserted into the flow path of the blood. The conductive pattern must have its active element on or very near the leading edge of the electrode base material, and in contact with the blood, and the non-active areas of the conductive pattern must be insulated electrically from the blood or plasma being tested so as to allow sensing of the change in resistance caused by the platelet build-up on the active area.  Tests of material thicknesses at stir-ring rates and in configurations that are used for aggrega-tion indicate that the platelets will build up on physical thicknesses ranging from less than 0.005 inches up to about 0.025 inches.  Above that, the platelets, which average in diameter about 2 to 3 microns, do not accumulate on the edge.  The electrodes should have a means for making con-nection to the measuring circuit which will sense platelet aggregation by measuring the increase of resistance between the two legs of the electrode assembly.