baber/WOPTO huggingface dataset:
Patent CA-1065615-A (CA)
Inventor: GOENS DUANE N
IPC: C22B15/00
Filed: 1976-02-13
Granted: 1979-11-06
Abstract: HYDROMETALLURGICAL PURIFICATION PROCESS    ABSTRACT        An improved purification process is disclosed for use in conjunction with the hydrometallurgical recovery of copper from copper sulfide ores and concentrates, the improved process comprising removing substantially all of the cuprous chloride and cupric chloride from the solution to be purified by reacting these values with chalcopyrite at a temperature of at least about 110°C. in order to produce solid copper sulfides and a ferrous chloride solution containing various metal impurities.          The process is primarily intended to be employed with copper recovery processes comprising leaching the copper feed material with ferric chloride in order to produce a solution comprising cuprous chloride, cupric chloride and ferrous chloride, as well as the various metal impurities, recovering a portion of the copper values by reducing the cuprous and/or cupric chlorides to elemental copper, and treating the remainder of the solution to remove the residual copper and various impurities and to treat the ferrous chloride.
Patent CA-1040055-A (CA)
Inventor: ROLT ANTHONY P R
IPC: F16H45/00
Filed: 1976-02-24
Granted: 1978-10-10
Abstract: ABSTRACT      A control coupling, particularly for use with a differential gearing, the coupling including an enclosure containing a viscous liquid and first and second mutually inter-leaved sets of annular plates arranged for rotation about a common axis within the enclosure.  The first set of plates are arranged to be connected with a first rotatable member and the second set of plates being arranged to be connected with a second rotatable member, and the plates of at least one set are free to move in directions parallel to the common axis.  The enclosure incorporates an element which is movable independently of the plates in order to vary the volume of the enclosure and spring are provided to urge the element towards a limit position in which the volume of the enclosure is at a minimum.  The element is displaceable against the spring, in response to increases in liquid pressure in the enclosure, to increase the volume of the enclosure.
Patent CA-1037226-A (CA)
Inventor: FISCHER HERBERT
IPC: C01B17/04
Filed: 1976-02-25
Granted: 1978-08-29
Abstract: ABSTRACT OF THE DISCLOSURE     In a Claus process for the production of sulfur from a raw gas which is poor in ammonia and consisting essentially of hydrogen sulfide, such as a gas from refinery plants, by scrub-bing the gas with water to remove NH3 and H2S therefrom, separating the NH3 and H2S and producing a gas stream rich in H2S and another gas stream rich in NH3, subjecting the first and the second gas streams separately to combustion and cooling the combustion gases, the improvement which comprises:  (a) scrubbing the H2S and NH3-containing raw gas which is saturated with water vapor in two stages consisting of a bottom stage and a top stage, recirculating the scrubbing water repeatedly through only said bottom stage to remove most of the NH3 from the raw gas in order to reach a high absorption rate and thereafter finally scrubbing the raw gas with fresh water in an open circuit in the top stage whereby the latter water then passes into the bottom stage without recirculation to remove the remainder of the NH3 therefrom to a residual content of less than 100 ppm NH3 and dissipating the heat of reaction and solution by a heat exchanger supplied with coolant;  (b) deriving a gas rich in H2S and containing less than 100 ppm of NH3 therein;  (c) driving H2S from the scrubbing water of step (a) liberated from H2S and cooling the formed NH3 and forming a second gas rich in NH3;  (d) recircula-ting the scrubbing water which is free of H2S and NH3 to the top of the bottom stage of the scrubbing column; and  (e) feeding the first mainly H2S-containing gas and the second mainly NH3-containing gas streams of steps (b) and (c) respectively into the same Claus plant furnace with temperatures of below 40°C and burning said gases separately with air or oxygen, the second gas being burned with an excess of oxygen to maintain a ratio of H2S/ SO2 at a value of about 2 to 1 to produce elemental sulfur therefrom.
Patent CA-1066190-A (CA)
Inventor: PRINCE ALFRED M
IPC: C07K14/02
Filed: 1976-03-12
Granted: 1979-11-13
Abstract: VACCINE FOR ACTIVE IMMUNIZATION CONTAINING HEPATITIS B SURFACE ANTIGEN AND ASSOCIATED                  ANTIGEN     Abstract of the Disclosure A vaccine against viral hepatitis comprising:         A. Antigenic particles having a particle size in the range of 30 to 50 nanometers, said antigenic particles containing hepatitis B surface antigens;           B. Said antigen having less than 10 units of free antibody to hepatitis B surface antigens per 1,000 units of hepatitis B surface antigens;           C. At least 5% of the particles of said vaccine in the size range of 30 to 50 nanometers containing the hepatitis B surface antigenic specificity(s) which have been termed "e-antigen";           D. Said hepatitis B surface antigens, including e-antigens, being present in said vaccine in an amount sufficient to produce antibodies when introduced into a host animal, the balance being a medium which is physiologically acceptable,  especially to humans and primates.
Patent CA-1062840-A (CA)
Title: Blends of copolyesters and ethylene/carboxylic acid copolymers which are at least ten percent neutralized
Inventor: SHIH CHI-KAI
IPC: C08L67/02
Filed: 1976-05-20
Granted: 1979-09-18
Abstract: Abstract Copolyesters blended with ethylene/carboxylic acid copolymer in which at least 10% of the acid groups are neutralized have increased melt strength, and are more readily processable by blow molding and extrusion film blowing techniques.  The blends contain from 0.2 to 20% by weight of the ethylene/acid copolymer.
Patent CA-1061408-A (CA)
Inventor: TOKUNAGA MICHIO
IPC: H03K17/725
Filed: 1976-05-28
Granted: 1979-08-28
Abstract: SEMICONDUCTOR BIDIRECTIONAL SWITCH CIRCUIT     ABSTRACT OF THE DISCLOSURE         A semiconductor bidirectional switch circuit comprises a bidirectional switch including two thyristors connected in antiparallel relationship.  A bypass circuit is connected to each of the two thyristors for bypassing a part of a main current flowing through the thyristor from the anode to the cathode of the thyristor.          A cathode-gate driver circuit is connected to the cathode-gate of each of the two thyristors for supplying a current thereto and a driver circuit is connected to the base of the transistor constituting each of the two bypass circuits, for extracting a current from the base, whereby the gate current of either of the thyristors is allowed to continue flowing at a low drive voltage irrespective of the amplitude of an AC signal voltage which passes through the bidirectional switch circuit so that even when the AC signal current decreases in absolute value below the self-holding current of the thyristor associated, the AC signal may be passed through the thyristor switch without being subjected to instantaneous interruptions.
Patent CA-1056316-A (CA)
Inventor: AHLSCHWEDE BRIAN A
IPC: B60T7/04
Filed: 1976-05-31
Granted: 1979-06-12
Abstract: SERVICE BRAKE LOCK MECHANISM                Abstract of the Disclosure A lock mechanism includes a locking pawl which is movable to a pedal-lock position for preventing a brake pedal from returning from a brake-engage to a normal brake-release position.  The pawl is biased toward a pedal-lock position but is normally held in a pedal-release position through means of an actuator rod that is biased to a pawl-retain position.  The rod has a foot-engageable portion so located that an operator can use one foot to simulta-neously move the brake pedal to its brake-engage position and move the actuator to a pawl-release position permitting the pawl to move to its pedal-lock position.  The lock mechanism is con-structed such that once the operator removes his foot from the locked brake pedal the actuator rod will move to an intermediate position spaced from the brake pedal and in which it is held by the engaged locking pawl so as to permit the operator to re-engage his foot with the brake pedal to overtravel the latter without again engaging the actuator rod, such overtravelling re-leasing the locking pawl and hence the actuator rod whereby the biasing force acting on the rod returns it and the pawl respec-tively to their pawl-retain and pedal release positions.
Patent CA-1045206-A (CA)
Inventor: WINSLOW JOSEPH D JR
IPC: G01N27/30
Filed: 1976-06-14
Granted: 1978-12-26
Abstract: Abstract of the Disclosure A flush mounted probe for corrosion testing by assembling into a nipple secured to a pipeline.  The nipple is of conventional design such as employed in hot tapping installations.  The probe is arranged upon assembly within the nipple to place a plurality of planar-surfaced metallic electrodes in substantially parallel alignment with the inner surface of the side-wall of the pipeline.  The probe is arranged by its construction for installation and removal in the same manner as blind plugs and other accessories using the hot tapping equipment.  No special tools or parts are required to install and remove the present probe, even under extremely elevated pressure conditions in a pipeline.
Patent CA-1058781-A (CA)
Inventor: BAXTER WILLIAM D
IPC: G09G5/08
Filed: 1976-09-09
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to CRT data terminals, and more particularly to cursor control circuits that control the scanning position of a cursor character on a CRT portion of the terminal.  In the past, when more than one position movement was desired by a cursor, it was necessary for the terminal operator to repeatedly depress a single cursor key until the number of depressions relate to the desired cursor location.  The present invention achieves control of the scanning motion of a cursor on a CRT in a desired direction by providing an apparatus such that the prolonged depression of a cursor scan control key on a CRT terminal keyboard generates a unique coded signal that is fed to a gating circuit.  Prolonged depression is further detected by an astable circuit that generates repeated enabling pulses to the gating circuit so that the coded signal is repeatedly transferred to a separate programmable control unit.  The unit is programmed to translate the repeated signals to a cursor scan command for a CRT which forms a part of the terminal.
Patent CA-1077395-A (CA)
Inventor: POSTHUMA ALBERT E
IPC: A61B17/00
Filed: 1976-11-09
Granted: 1980-05-13
Abstract: SYNTHETIC VAGINAL MUCUS               ABSTRACT OF THE DISCLOSURE         A synthetic physiological mucus having particular usefulness as a vaginal and surgical lubricant, based upon a pituitous aqueous solution of a high molecular weight polyacrylamide.
Patent CA-1050508-A (CA)
Inventor: COMSTOCK EVERAD A
IPC: F04D29/32
Filed: 1977-01-12
Granted: 1979-03-13
Abstract: ABSTRACT OF THE DISCLOSURE            A sheet metal fan exhibiting special utility as a radiator fan for an internal combustion engine.  A spider carries the blades on its arms, the arms each hav-ing a radially extending stiffening rib in opposed rela-tion to a complementary rib in its blade to thereby form a tube where the stiffening ribs are radially coextensive.  The stiffening rib on each blade intersects a continuous, blade stiffening channel.
Patent CA-1090803-A (CA)
Inventor: MATIER WILLIAM L
IPC: C07D/
Filed: 1977-01-20
Granted: 1980-12-02
Abstract: 2-PIPERAZINYL-6,7-DIMETHOXYQUINAZOLINES Abstract of the Disclosure A series of novel 4-amino or 4-hydrazino-2-(substituted piperazinyl)-6,7-dimethoxyquinazolines is disclosed having anti-hypertensive and phosphodiesterase inhibiting properties.  Piperazinyl substituents include cycloalkenylcarbonyl, cycloalkylcarbonyl, and methylcycloalkylcarbonyl.  A representative embodiment of the invention is 4-amino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazoline.
Patent CA-1101863-A (CA)
Inventor: KIEHS KARL
IPC: C07F9/58
Filed: 1977-02-23
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE:           New pyridylphosphoric acid derivatives, a process for the manufacture thereof by reaction of pyridinecarboxylic acid esters with salts of phosphoric acid derivatives, and pesticides containing these new pyridylphosphoric acid derivatives as active ingredients.  The compounds of the invention have the formula   where X denotes hydrogen or halogen, Y denotes oxygen or sulfur, R1 denotes alkyl containing 1 to 6 carbon atoms or benzyl, R2 denotes alkyl containing 1 to 6 carbon atoms, phenyl, alkyloxy or alkylthio containing 1 to 6 carbon atoms, and R3 denotes alkyl containing 1 to 4 carbon atoms.
Patent CA-1076449-A (CA)
Inventor: CAIRNS ROGER J R
IPC: B01D17/04
Filed: 1977-03-08
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE             Anthracite packed oil water coalescers are treated with certain polymers, e.g. polybutene polyamines to improve their performance when dealing with sea water - oil emulsions.
Patent CA-1076149-A (CA)
Inventor: KAMIYAMA SETSUO
IPC: B01J29/00
Filed: 1977-06-03
Granted: 1980-04-22
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-1084821-A (CA)
Inventor: FUJII SUMIHIDE
IPC: C23C24/00
Filed: 1977-06-07
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE          A surface treatment for a metal according to a fluidized bed system, in which a hot rolled metal is continuously subjected to an in-line treatment to suppress the formation of scale on its surface or to remove the same therefrom, and then introduced into a gaseous fluidized bed of a non-oxidizing gas, which con-tains metal or alloy particles having a low melting point, as fluidized particles, so as to bring the hot rolled metal into contact with the fluidized particles.  As a result, the fluidized metal particles or alloy particles may be melted and solidified on the surface of the rolled metal to provide a coating layer of a metal or alloy having a low melting point on the surface thereof.  In addition, during the surface treat-ment according to the fluidized bed system, heat treatment such as patenting or cooling may also be applied in combination therewith at the name time.
Patent CA-1073140-A (CA)
Inventor: GIBBONS JOHN P
IPC: C08G8/04
Filed: 1977-07-15
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE            Carbohydrate-phenolic resol resins are produced in a process in which a phenolic compound is reacted with a carbo-hydrate in the presence of a basic catalyst to form a resin intermediate in a first stage, and then, in a second stage, the resin intermediate is reacted with a lower aliphatic aldehyde in the presence of a basic catalyst to form the resol resin.  The resins produced in the practice of this invention are particularly well suited for laminating and adhesive applications.
Patent CA-1115586-A (CA)
Title: Photoresist material comprising an o-quinone  diazide photosensitizer, an alkali soluble  polymer and a rosinous material
Inventor: ODDI MICHAEL J
IPC: G03F7/023
Filed: 1977-07-19
Granted: 1982-01-05
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention provides a photoresist compo-sition, comprising a photosensitizer, a polymeric material which is rendered developable by the action of radiation on the photosensitizer, and a rosinous material selected from the group of rosin, hydrogenated rosin, esterified rosin, neutralized rosin, esterified hydrogenated rosin, esterified neutralized rosin, and mixtures thereof.
Patent CA-1058821-A (CA)
Inventor: PRICE RAYMOND R
IPC: A01F25/16
Filed: 1977-07-29
Granted: 1979-07-24
Abstract: AUTOMATIC SILO DOOR CONSTRUCTION  .              ABSTRACT OF THE DISCLOSURE         Automatically actuable silo door apparatus and a silo equipped with same.  The apparatus preferably comprises a door member adapted to selectively block a silage discharge orifice, a hinge assembly for mounting the door, retractable gun means for automatically activating the door apparatus, and trigger apparatus responsive to silage level for selectively activating the gun means to open the door.  In a preferred form of the invention each trigger means comprises a portion received within an upper adjacent silo door orifice whereby an automatic silo unloader will contact and activate it during the unloading oper-ation.  The hinge means preferably comprises first and second spaced apart door hinge bars, each having portions pivotally mounted to the door member and integral offset portions thereof pivotally received by the silo.  The hinge means enables the door member to be moved out of and away from the silo door ori-fice when opened to prevent interference with the unloader.  A silo disclosed herein comprises a plurality of vertically spaced apart silo doors which may be automatically, sequentially opened to facilitate automatic silo unloading.
Patent CA-1117868-A (CA)
Inventor: LEBOST BARRY A
IPC: F03D3/02
Filed: 1977-08-12
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE           A turbine for generating electric power when ex-posed to a fluid source, such as a liquid or gaseous current. The turbine has two substantially annular rotor housings spaced in parallel, horizontal planes.  Each housing is pro-vided with a plurality of radially extending blades which are connected to coaxial shafts.  One of the shafts is con-nected to the field windings of an electric generator while the other shaft is connected to the armature windings.  The radial blades in each rotor housing when exposed to the li-quid or gaseous current rotate in opposite directions caus-ing the field and armature windings of the generator to rotate in opposite directions to increase the power output of the generator.  Fluid scoops are located at the entrance to each housing to accelerate the fluid current and deliver it to curved stator blades which form a series of fluid jets which further accelerate the incoming fluid and bend the fluid so as to direct it to impinge on the radial rotor blades in a direction  providing increased starting torque while also increasing the effective force of the fluid. This increased effective force is added to the internal force of the fluid once operation is commenced so that the scoops and stator blades insure power output in light fluid currents and multiply power output in heavy currents.
Patent CA-1061518-A (CA)
Inventor: KINDBERG BENGT A
IPC: C09J5/00
Filed: 1977-09-23
Granted: 1979-09-04
Abstract: Abstract of the Disclosure A beam having flanges composed of wood pieces and a web consisting of a wire member bent alternately back and forth to extend between and being attached to the flanges at the bends.  Each flange comprises at least two wood pieces which extend longitudinally of the beam and are joined together by gluing, at least one of the wood pieces having recesses in the surface joined with the other wood piece, which recesses are adapted to receive the bands of the wire member.  The beam is manufactured in that recesses are arranged at regular intervals in a long wood piece, whereupon two such wood pieces provided with recesses are placed at a distance from one another corres-ponding to the distance between the flanges of the beam to be made, with the recesses in one wood piece exactly opposite to points situated halfway between the recesses in the other wood piece.  Then the wire member bent alternately back and forth is placed with its bends alternately in the first and the second wood piece, whereupon an additional wood piece is glued on to the recessed ride of each of the wood pieces.
Patent CA-1079769-A (CA)
Title: Isolation electrique des brides metalliques de tuyaux
Inventor: PUECHAVY DANIEL
IPC: F16L33/28
Filed: 1978-02-20
Granted: 1980-06-17
Abstract: Bride métallique de raccordement destinée à un tuyau souple dont l'armature comporte des éléments métalliques continus allant d'une bride à l'autre et dont la résistance ohmique de bride à bride doit être élevée.  Au moins sur les parties des parois de la bride en regard des éléments métalliques de l'armature, la bride est revêtue d'une couche constituée d'un matériau fibreux ayant une résistance mécanique et une résistivité électrique élevées et d'un liant solide ayant une résistivité électrique élevée.  Ce matériau fibreux est du tissu de verre se présentant sous la forme de plusieurs plis de tissu de verre superposés et croisés de 45.degree. l'un par rapport à l'autre.
Patent CA-1058099-A (CA)
Inventor: STURGES JAMES R
IPC: F16D13/64
Filed: 1978-03-20
Granted: 1979-07-10
Abstract: FRICTION MATERIAL LAND CONFIGURATION                 Abstract of the Disclosure A plate is disclosed for frictional engagement with a generally flat reaction member.  The plate includes a metallic disc with an elastomeric material affixed to the side of the disc, the elastomeric material being formed into a plurality of upraised arcuate lands generally concentric with the disc and a plurality of corresponding arcuate grooves separating adjacent lands.  A ratio, R, of the width of a respective land to the sum of the width of said respective land plus the width of a respective  corresponding groove (a respective lead) is defined by an equation which is a function of the pressure applied to engage the disc with the reaction member, the variation in thickness of the reaction member, the spring rate constant of the elastomer and the fraction of the peak strain which develops in the elastomer during engagement of the disc with the reaction member to the minimum strain at which failure of the elastomeric material initiates.
Patent CA-1133233-A (CA)
Inventor: HOFMANN FRIEDERICH
IPC: B08B17/00
Filed: 1978-03-29
Granted: 1982-10-12
Abstract: Abstract of the Disclosure A process is described for preventing encrustations on surfaces which are in contact with aqueous solutions contain-ing matter which is prone to crystallize, particularly in flue gas desulfurization plants, using solutions containing alkali or earth alkali ions as adsorption agents, or in measuring devices which are immersed into such solutions, characterized in that the aqueous solution is supplemented with a chemical substance forming a thin protective film on the surface being in contact with the solution.
Patent CA-1108538-A (CA)
Title: Organo-soluble ethyl hydroxyethyl cellulose and aromatic hydrocarbon resin in oil-based or water-in- oil emulsion make-up
Inventor: NARA MICHIKO
IPC: A61Q1/02
Filed: 1978-04-12
Granted: 1981-09-08
Abstract: ABSTRACT OF THE DISCLOSURE        A make-up cosmetic composition having good oil resistance, water resistance and adhesion, which contains at least one of (a) an organosoluble or a water- and organo-soluble ethyl hydroxyethyl cellulose and (b) an aromatic hydrocarbon resin having a softening point of at least about120°C.
Patent CA-1091851-A (CA)
Inventor: LATINA ROLAND N
IPC: A63B71/12
Filed: 1978-05-16
Granted: 1980-12-23
Abstract: Abstract of the Disclosure A shoulder pad for football players comprising a chestplate portion, a backplate portion and a pair of arches integrally connecting the plate portions, the arches being laterally spaced to provide an opening for the neck of the wearer with the spacing such that the arches lie adjacent and relatively close to the neck. The arches and padding thereunder are relatively narrow in relation to the width of the shoulders so as to provide freedom for upward movement of the outer part of the shoulders without substantial interference from the arches. pair of caps of relatively rigid material adapted to fit over the outer portion of the shoulders are flexibly connected to respective arches and have shoulder padding on the inside thereof separate front the arch padding for enabling the caps and the shoulder padding to move freely upwardly upon upward movement of the outer part of the shoulders.