baber/WOPTO huggingface dataset:
Patent CA-1064708-A (CA)
Title: Process for separation and recovery of metal values from sulfide ore concentrates
Inventor: COLTRINARI ENZO L
IPC: C01G21/16
Filed: 1975-07-04
Granted: 1979-10-23
Abstract: ABSTRACT  OF  THE  DISCLOSURE          An improvement in conventional processes for recovering metal values from sulfide ores containing lead, zinc and silver sulfides in which process the metal sulfides are converted to chlorides by chlorination followed by solubilization of the chlor-ides with a sodium chloride leach and subsequent recovery of the metals from their chlorides in accordance with a conventional flow sheet including crystallization, cementation, precipitation, fused salt electrolysis, etc., with chlorine being recovered for reuse by electrolysis of the sodium chloride leach solution substantially depleted of lead, silver and zinc, the improvement being a pollution-free process which comprises:                (1) recycling the sodium chloride solution depleted of a major percentage of lead and silver to the sodium chloride or brine leaching step; and (2) controlling the concentration of zinc and other impurities in the sodium chloride or brine leaching solution by bleeding a portion from the recycle stream of (1) above, removing lead, zinc and other metal impurities from the bleed stream, electrolyzing the bleed stream to produce chlorine, sodium hydroxide and a weak sodium chloride solution followed by recycle of the chlorine to the dry chlorination step and weak sodium chloride solution, after concentration, to the leach solution to control the concentration of zinc chloride and other impurities in the leach solution.  A further improvement is the use of an alternate dry chlorination procedure for the sulfide ores and, particularly, ores such as the tetrahedrite-tennatite series which are more satisfactorily chloridized by dry chlorination than by wet chlorin-ation.  Another improvement is use of a flow sheet by which no impurities are removed from the process in the form of chlorides so that no chlorine is lost from the system.
Patent CA-1062160-A (CA)
Inventor: WHITE LEE N
IPC: A61K8/49
Filed: 1975-07-17
Granted: 1979-09-11
Abstract: ABSTRACT OF INVENTION            A hair composition including petrolatum, sulphur, quinine powder, egg yolk, essence of spice, and an alcohol.
Patent CA-1059786-A (CA)
Inventor: HAYAKAWA NOBORU
IPC: G01N9/00
Filed: 1975-09-19
Granted: 1979-08-07
Abstract: METHOD AND APPARATUS FOR MEASURING                  DENSITY OF SUSPENSION          ABSTRACT OF THE DISCLOSURE         Disclosed are a method and apparatus for measuring the density of a suspension wherein the suspension to be measured is first subjected to pres-surization or depressurization in a closed container by means of a compressor or a vacuum pump to ex-tinguish air bubbles and gas bubbles which would otherwise cause measurement error, and the measure-ment of the density of the suspension is then achiev-ed with high exactitude in a bubble free state.
Patent CA-1052462-A (CA)
Inventor: BLAIR PETER K
IPC: B61L25/02
Filed: 1975-10-08
Granted: 1979-04-10
Abstract: TRAIN POSITION INDICATION             Abstract of the Disclosure This invention applies to an automatic train control system.  A low power radar mounted beneath a train interrogates simple passive transponders mounted between the rails.  Each transponder includes a reflective delay line.  The radar has a number of range gates.  The transponder delays are arranged in a simple code which provides information as to the location of the train along the track.  The outputs of the range gate can be fed to a simple computer which can also receive wheel revolution pulses from an axle mounted transducer.  The computer can then calculate the distance travelled at any given moment to within one meter from the last transponder over which the train has passed.
Patent CA-1074945-A (CA)
Inventor: SEMANCHIK MICHAEL
IPC: B01J19/20
Filed: 1975-10-09
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE    A process for producing a polyacetal polymer.   The process includes reacting a polyacetal forming polymerization mixture in a polymerization reaction zone, which zone includes an elongated casing substantially following the outer boundaries of at least a pair of shafts, each of the shafts plates having flattened edges at the major axis which mesh, wiping the surface of its mating plate.  The polymerization mixture is polymerized to form a polyacetal product in the form of a finely divided solid.
Patent CA-1036396-A (CA)
Inventor: GERRETZ JOSEF
IPC: B21B21/04
Filed: 1975-10-16
Granted: 1978-08-15
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a feed apparatus for cold pilger rolling mills, having at least one feed spindle for at least one feed carriage, and having a feed transmission which is connected to a main drive and comprises a first and second line of drive, the first line of drive being connected with a gear wheel secured on the feed spindle to produce a continuous rotation-al movement of the feed spindle, and the second line of drive being connected with the feed spindle by way of an intermittently moved lever to produce an intermittent axial movement of the feed spindle, two feed spindles being provided at opposite sides of the rolling axis, the feed spindles being connected to one another by a longitudinally mobile cross-member, each of the two feed spindles being mounted to be rotatable in an axial bearing and a radial bearing in the cross-member and a lever of the second line of drive acting on the cross-member.
Patent CA-1044913-A (CA)
Inventor: RATTS KENNETH W
IPC: C07F9/38
Filed: 1975-12-18
Granted: 1978-12-26
Abstract: METHOD FOR INCREASING THE SUCROSE        CONTENT OF GROWING PLANTS                  Abstract of Disclosure The sucrose content of sugar cane plants is increased by treating the plants, prior to harvest, with N-acetyl or chloro-acetyl derivatives of aminomethylenephosphonic acid, and certain esters and salts thereof.
Patent CA-1073471-A (CA)
Inventor: KINSON PHILIP L
IPC: C07C37/62
Filed: 1975-12-18
Granted: 1980-03-11
Abstract: AN IMPROVED BROMINATED BIPHENOL PROCESS                    Abstract of the Disclosure Brominated biphenols are produced by a bromination process which comprises reacting bromine with a 3,3',5,5'-tetrasubstituted diphenoquinone at a temperature below about +20° C. in the presence of a diluent wherein the bromine to diphenoquinone mole ratio is greater than about 6.5:1, evolving hydrogen bromide gas at a temperature of at least about +15° C., heating the resulting reaction mixture at elevated temperatures to complete the bromination reaction and recovering the desired 2,2',6,6'-tetrabromo-3,3',5,5'-tetrasubstituted-4,4'-biphenol.  The biphenol products of the process can be used as antioxidants, as monomeric starting materials for polymeric halogenated organic compounds which are fire retardant as well as monomeric flame retardant additives for polymeric compositions useful in molding, coating and insulating various articles of manufacture.
Patent CA-1071699-A (CA)
Inventor: DELPY HENRY
IPC: H05B39/04
Filed: 1976-01-12
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE:           A control circuit for progressively and gradually varying the illumination intensity of incandescent lamps.          The circuit comprises a source of alternating current connected in series with an electric lamp load which is also in series with a silicon controlled rectifier.  This silicon control rectifier is rendered conductive when its gate is actuated by a gate signal generated by a programmable unijunction transistor (PUT).  The conduction of the PUT depends on the voltage applied on its gate by a gate biasing circuit connected thereto and which comprises a charging capacitor.  On the other hand, a charging circuit is connected across the silicon control rec-tifier whereas a second charging circuit is connected between the anode of the PUT and the first-mentioned charging circuit.          Thus, progressive and gradual extinction or quenching as well as progressive and gradual ignition or lightening of the electric lamp are effected by making the charging or discharging time of the first-mentioned circuit higher than the charging or discharging time of the gate biasing circuit, whereby the time intervals between which the PUT is made conductive becomes longer and longer due to the reducing difference between the voltage supplied by the biasing circuit to the gate of the PUT and the voltage on the cathode of the PUT supplied by the second-mentioned char-ging circuit, at each source cycle.
Patent CA-1036995-A (CA)
Inventor: COOPRIDER REX C
IPC: B05B11/00
Filed: 1976-02-05
Granted: 1978-08-22
Abstract: ABSTRACT      A manually operated pump, the housing of which defines relatively spaced underlying pump chambers respectively communic-ating with inlet and outlet passages, includes a hollow piston assembly having interconnected pistons reciprocable in the res-pective pump chambers, the piston assembly providing a connecting passage between the respective chambers.  Check valve means are associated with the piston assembly and the inlet passage res-pectively for preventing backflow of fluid.  One of the pump chambers is adapted for at least partial reception in a container for a flowable product to be dispensed while the other chamber is supported at a location externally of the container.  A return spring normally urges the piston assembly inwardly toward the container, while an operating lever connected to the piston assembly between the respective pump chambers is arranged to urge the piston assembly outwardly from the container.
Patent CA-1067171-A (CA)
Inventor: KNICKERBOCKER ROBERT H
IPC: H01R9/22
Filed: 1976-03-25
Granted: 1979-11-27
Abstract: MODULAR CONNECTING BLOCK     Abstract of the Disclosure There is disclosed a modular connecting block composed of a dielectric material containing a plurality of flat, elongate, electrically conductive elements.  Each conductive element com-prises a flat base portion and at least one pair of opposing con-tact fingers which project upwardly from the base portion and are integral with the base portion.  The adjacent edge portions of the contact fingers are adapted to receive an electrical conductor therebetween.  The block comprises a parallelepiped having a pro-jecting edge along the bottom of one longitudinal side thereof.          The projecting edge is interrupted at a predetermined distance from one end thereof by a recess therein and at the same distance from the other end by a protruding securing means.  The width of the recess is at least as great as the width of the securing means so that when two such blocks are placed with their projec-ting edges in face-to-face contact, the securing means of one will fit into the recess of the other.
Patent CA-1067172-A (CA)
Inventor: DICKEY LARRY W
IPC: H01R9/24
Filed: 1976-03-29
Granted: 1979-11-27
Abstract: MULTIPLANE TERMINAL BLOCK     Abstract of the Disclosure A multiplane terminal block adapted to provide rearrangeable electrical connections includes a plurality of spaced insulating terminal posts extending outwardly on one side of a rectangular block of insulating material.  A conductive element fixedly inserted into each post protrudes through the block and provides a rearrangeable clamp connection to an electrical conductor at the top of the post and a fixed connection to an electrical conductor on the other side of the block.  Each terminal post is of a different length than the immediately adjacent terminal posts whereby a relatively long path between conductive elements with close spacing between adjacent. posts is provided.
Patent CA-1068534-A (CA)
Inventor: COPPERWHEAT CYRIL
IPC: A01B59/06
Filed: 1976-03-31
Granted: 1979-12-25
Abstract: ABSTRACT            A unit for attachment to a tractor, particularly at the front of a tractor, enables any tractor quickly and easily to be equipped with a three-point linkage for coupling to implements and ancillary equipment, A linkage comprising a top link, two lower links, connecting means and one or more actuators is fitted as a unit to a frame which can be secured to the tractor.   Preferably all three links are moved jointly by the actuator through the connecting means therebetween. The actuators may comprise two hydraulic rams positioned one at each side of the unit leaving the centre of the unit open and free for auxiliary equipment.
Patent CA-1057916-A (CA)
Inventor: DUNHILL GEOFFREY
IPC: B60S1/04
Filed: 1976-05-31
Granted: 1979-07-10
Abstract: WINDOW WIPER ASSEMBLIES FOR VEHICLES     ABSTRACT OF THE DISCLOSURE         A window wiper assembly for a vehicle cab which has a window sash or window surround that opens either by raising and tilting or by removing the window sash.  The wiper assembly includes a cam which guides the wiper arm from an operative position, where the wiper blade contacts the windowpane, to an unoperative position, where the wiper blade is moved away from the surface of the windowpane and is disposed in an out of the way position relative to the window sash to permit the opening of the window sash.  A switch is also provided which senses the open window and prevents actuation of the wiper assembly.
Patent CA-1063330-A (CA)
Inventor: MAYO HOWARD A JR
IPC: B23P15/04
Filed: 1976-06-23
Granted: 1979-10-02
Abstract: METHOD OF FABRICATING HYDRAULIC     TURBINE PROPELLER BLADE                  ABSTRACT OF THE DISCLOSURE         A method of fabricating a hydraulic turbine propeller blade is disclosed which includes welding the blade portion and trunnion together.  During the welding procedure, a flange between the trunnion and blade portion is formed with weld metal to the desired hydraulic contour.  As an additional embodiment, the blade portion may be composed of separate plate steel portions welded together.
Patent CA-1069929-A (CA)
Inventor: LAGOW RICHARD J
IPC: C08G65/323
Filed: 1976-07-20
Granted: 1980-01-15
Abstract: METHOD FOR PRODUCING PERFLUOROETHER OLIGOMERS            HAVING TERMINAL CARBOXYLIC ACID GROUPS                    ABSTRACT OF THE DISCLOSURE          A method is disclosed for producing perfluoroether oligomers having terminal carboxylic acid groups.  In this method, a polyether, such as polyethylene oxide, having a molecular weight higher than the product to be produced is fluorinated in a direct fluorination apparatus.  The polyether is fragmented during fluo-rination and significant yields of the desired oligomer are obtained.
Patent CA-1047202-A (CA)
Inventor: LIAUTAUD JOHN R
IPC: A61H35/02
Filed: 1976-08-20
Granted: 1979-01-30
Abstract: ABSTRACT             A portable molded plastic housing contains a reservoir of wash liquid such as water spaced above a basin having two opposed liquid spray nozzles. The nozzles are normally capped by an elastic cap over each, the two caps being joined by a strap by which fast and simultaneous removal of the caps is accomplished upon emergency need. The reservoir feeds solely by gravity to the nozzles upon removal of the caps. Liquid within the reservoir attains room temperature to improve user comfort and is free from contamination by pipe scale, yet is instantly available at a work station to give several minutes of eye-flushing spray.
Patent CA-1089269-A (CA)
Inventor: LINDEMANN HARLEY B
IPC: G02B1/06
Filed: 1976-08-20
Granted: 1980-11-11
Abstract: INVENTORS              Harley Burke LINDEMANN   John Boyden GOODELL                         TITLE               OPTICAL AIR LENS SYSTEM                ABSTRACT OF THE DISCLOSURE     In an optical system the use of one or a plurality of air lenses set in an optical  medium of higher refractive index than air at a predetermined distance from an object such that various optical aberrations are minimized or eliminated by using aplanatic optical surfaces.  Refraction occurs only for a ray going from the higher to the lower refractive index medium.  Rays entering the higher refractive index medium from the lower are never refracted since the optical surface is always chosen to have its center of radius coincident with the  object or image being optically operated on by the lens.  The system can be used to magnify the image of an object, the object being most any two-dimensional representation such as a negative or a positive print.  The object might alternatively be a light source or an external object whose rays are imaged onto an embedded light sensor so that the functions of the source or sensor respectively can be enhanced by the optical system.
Patent CA-1061439-A (CA)
Inventor: LOW ARNOLD E
IPC: H04M3/38
Filed: 1976-09-20
Granted: 1979-08-28
Abstract: CALL DENIAL CIRCUIT            Abstract of the Disclosure A call denial circuit is disclosed for restricting selected calls outgoing from a PBX or key telephone system.  The circuit is arranged to handle both dial pulse signaling and multifrequency tone signaling from the same station while at the same time being arranged to prevent a mixture of the two types of signaling on the same call.  One dial pulse detector is utilized for each line in conjunction with a multifrequency tone detector shared by all of the lines.  A continuously operating scanner sequentially causes the registered digits, both from the individual dial pulse detectors and from the common tone detector, to be supplied to a common check circuit on a time-shared basis.
Patent CA-1052185-A (CA)
Inventor: EDWARDS JOSEPH F
IPC: B65G53/14
Filed: 1976-10-21
Granted: 1979-04-10
Abstract: ABSTRACT OF THE DISCLOSURE           A meterinq and delivery system for feeding finely powdered coal to a combustion chamber includes a hopper contain-ing finely ground coal, a vertical food pipe extends from the hopper and a horizontal metering conduit is connected to the lower end of the feed pipe so that the coal provide a surface of repose in the metering conduit be1ow an air low opening with a bleed opening being downstream of the air flow opening.          A venturi jet housing provides suction on the metering conduit drawing ambient air into the opening to entrain coal for injection by an injector lance into a combustion space. Meterinq of the coal is provided by inversely operated valves through which ambient air flows to the openings in the metering conduit.
Patent CA-1040046-A (CA)
Inventor: CRISTIANI ATHOS
IPC: A24C5/14
Filed: 1976-11-03
Granted: 1978-10-10
Abstract: ABSTRACT         In a cigarette maker, improved means for condensing a shower of cut tobacco and for trans-ferring the condensed cut tobacco on to a moving suction tape to form a tobacco rod or braid without sudden and severe changes in speed and direction when the cut tobacco is being transferred on to the tape.
Patent CA-1047000-A (CA)
Inventor: NANCE FRANK B
IPC: B21J15/30
Filed: 1976-11-09
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE      The method and means for installing blind fasteners involves a pulling head design such that will cause the stem of the rivet pin to be broken at a predetermined location by a trimming or notching action of the head.  This allows a previously unweakened blind fastener pin to be weakened for breaking at a prescribed location after the fastener is in-stalled, thus accomplishing a pin break off substantially flush with the head of the fastener over an extremely wide range of thickness and types of materials being fastened.      The pulling means any include a support housing which slidably receives a chuck assembly for pulling the blind rivet pin.      A collect is also mounted in the support housing.  The collect has suitable cutting edges for weakening the pin stem immediately adjacent the head of the rivet sleeve when appropriate load forces are reached.  Cooperating cam surfaces on the support housing and collect react to the load forces to effect this weakening action.  The means for controlling the load forces to effect such stem weakening may be mechanical, mechanical with spring adjustment, or mechanical/hydraulic with adjustment.
Patent CA-1055089-A (CA)
Inventor: HEINEMANN OTTO
IPC: F16C13/06
Filed: 1976-12-09
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE            A hydrostatic bearing unit for rotating parts and more especially a radial bearing unit for heavy machine parts, such as drums, comprises a fixed base and a shoe which is mounted for limited gyration with respect to the base and for hydraulic adjustment with respect to the rotating machine part.  A bearing surface is fed with hydraulic carrier medium and the bearing shoe is connected to the base of the bearing through a hydraulically operable supporting membrane.
Patent CA-1094405-A (CA)
Inventor: DESILETS KENNETH G
IPC: B60R13/02
Filed: 1976-12-17
Granted: 1981-01-27
Abstract: A B S T R A C T         A metallized flexible plastic automobile trim com-ponent, such as a fender extension, is made by applying a series of four coatings to a polymeric substrate of the desired configuration, preferably of a molded thermoplastic urethane. The coatings comprise: 1) a primer coat of A baked pigmented urethane lacquer or enamel, the urethane being preferably an inherently light stable aliphatic urethane, 2) a leveling base coat of a thermosetting resin, e.g. a baked  melamine-formaldehyde and more preferably a blend of an aliphatic urethane with an anhydride cured epoxy, 3) a vacuum deposited layer of stainless steel or chromium, or of aluminum when the part is to be used in an interior application, and 4) a top coat of a tough abuse-resistant acrylic and/or urethane lacquer and moot preferably one com-prising a blend of an aliphatic urethane, acrylic and melamine resins.
Patent CA-1063253-A (CA)
Inventor: PATEL HARSHAD M
IPC: G01R31/28
Filed: 1977-01-21
Granted: 1979-09-25
Abstract: ABSTRACT OF THE DISCLOSURE     This disclosure pertains to an integrated circuit substitution device comprising a pincer-like contacting assembly which connects to the terminals of an existing integrated circuit connected to external circuitry, to be evaluated utilizing substitutional techniques,  The contact-ing assembly is adapted to connect to an integrated circuit socket with a one to one correspondence with all the ter-minals of the questionable integrated circuit and the sub-stituted integrated circuit with the exception of one or more vital connections, thus permitting the substituted integrated circuit to be passively inserted in the circuit. When the missing connection is completed manually, the substituted integrated circuit becomes active.
Patent CA-1092905-A (CA)
Inventor: GOPPINGER ALOIS
IPC: C30B25/00
Filed: 1977-03-08
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE           A process for deposition of polycrystalline sili-con from the gas phase on heated carrier bodies of carbon, which comprises assembling the carrier bodies from extreme-ly thin flexible graphite foils, heating the bodies to deposition temperature, while contacting them with a gas-eous mixture containing a decomposable silicon compound and, if desired, hydrogen, and separating the deposited silicon from the carrier body, after termination of the deposition process, by mechanical means.  The polycrystal-line silicon can either be deposited in the form of shaped hollow bodies for use as laboratory equipment or in the semiconductor industries, or it may be processed to mono-crystalline materials.
Patent CA-1071500-A (CA)
Inventor: WAGNER WALTER D
IPC: B65D51/16
Filed: 1977-03-21
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE     A pressure stabilizer device designed to be placed on the vent line of underground gasoline storage tanks in a service station.  The pressure stabilizer is designed to allow in-breathing in the even a vacuum develops in the underground storage system or outbreathing in the event the pressure becomes too great.  The stabilizer has an open aperture of a predeter-mined size to allow a given amount of inbreathing or out-breathing.  The stabilizer also includes a gravity operated valve arrangement which opens in response to a given high pressure within the underground storage system to increase the  aperture size of a stabilizer and allow a pressure release.