baber/WOPTO huggingface dataset:
Patent CA-1079424-A (CA)
Title: Procede de traitement d'effluents nitriques
Inventor: CUER JEAN-PIERRE
IPC: C01C1/18
Filed: 1977-11-01
Granted: 1980-06-10
Abstract: Procédé de traitement des effluents nitriques dilués des usines de fabrication d'acide nitrique ou des usines utilisant cet acide en particulier en hydrométallurgie, par exemple les usines où l'on traite les minerais d'uranium ou leur concentrés uranifères. Ce procédé consiste à effectuer une extraction liquide-liquide sur l'effluent à traiter, préalablement acidifié, au moyen d'un agent d'extraction constitué par l'association d'un ester phosphorique neutre et d'au moins une amine à longue chaîne, puis à traiter le solvant chargé de façon à récupérer du nitrate d'ammonium exempt d'ions sulfate.  Ce nitrate d'ammonium peut être utilisé tel quel comme engrais ou traité, de façon connue en soi, pour donner de l'acide nitrique directement utilisable.  Le procédé de l'invention résoud les problèmes de pollution posés par les effluents nitriques dilués tout en conduisant à des produits valorisables.
Patent CA-1061275-A (CA)
Inventor: PODESTA SERGIO
IPC: B66F9/00
Filed: 1978-01-31
Granted: 1979-08-28
Abstract: ABSTRACT OF THE DISCLOSURE           A container cargo handling system for loading and unloading ships includes an improved transport vehicle having cable-operated collecting means for lowering and raising container cargo in the ship's hold from the main deck and a cargo vessel having vertical storage compartments with hatchways on the main deck covered by pontoon covers which form a roadway for the transport vehicle, and a bow entrance for direct passage of the transport vehicle onto the main deck for loading and unloading the vessel.
Patent CA-1107370-A (CA)
Inventor: TAWFIK DAVID A
IPC: G06F11/16
Filed: 1978-02-06
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE      Monitoring apparatus for redundant control systems includes means for preventing the monitoring apparatus from failing to a "good" state.  Each of the channels in the redundant system generates a command signal which is compared to a signal provided by adding the command signal generated by another of the channels to a tracer signal.  The amplitude of the addition signal is such so that the comparator toggles between its "good" and "fail" states to obviate failure of the monitoring apparatus to its "good" state.
Patent CA-1117958-A (CA)
Inventor: VANSTONE ANTHONY E
IPC: C07C65/32
Filed: 1978-03-16
Granted: 1982-02-09
Abstract: ABSTRACT            New chalcone derivatives having the general formulae:                                (Ia) and   (Ib) in which R1 is a hydroxyl, carboxylic acid or sulphonic acid group or a carboxyalkoxy or sulphoalkoxy radical, the alkoxy moieties of which contain up to 3 carbon atoms. R2 and R3, which may be the same or different, are hydrogen or halogen atoms, hydroxyl groups or alkoxy radicals con-taining up to 6 carbon atoms and R4 is an alkyl, hydoxy-alkyl, alkoxy, carboxyalkoxy, sulphoalkoxy or carboxyalkyl-carbonyloxyalkyl radical, the alkyl and alkoxy moieties of which contain up to 6 carbon atoms, or a carboxylic acid or sulphonic acid group, with the proviso that the compounds of the general formula (Ia) always contain at least one carboxylic acid or sulphonic acid group, and the non-toxic inorganic and organic salts of those compounds containing at least one carboxylic acid or sulphonic acid group, are prepared by condensing an acetophenone derivative of the general formula:       in which R1 and R2 have the aforesaid meanings, with an aldehyde of the general formula:                    in which R3 and R4 have the aforesaid meanings, whereafter, when a product is obtained containing a carboxyl group, this product is, if desired. subsequently lactonised and, if desired, the product obtained is reacted with a non-toxic organic or inorganic base to give the corresponding salt.  The new compounds of the invention are particularly suitable for the treatment of inflammatory and allergic conditions, as well as for the treatment of ulcerous con-ditions of the gastro-intestinal tract, and are less toxic and/or more effective than the known compounds for treating these indications.
Patent CA-1117465-A (CA)
Inventor: ARENDT RONALD H
IPC: C25D9/10
Filed: 1978-03-17
Granted: 1982-02-02
Abstract: ABSTRACT OF THE DISCLOSURE    A boron-containing electrical steel sheet is provided with an electrolytically-deposited boron-containing Mg (OH)2 primary coating about 0.05 mil thick and a secondary coating of electrolytically-deposited Mg(OH)2 about 0.15 mil thick.
Patent CA-1114514-A (CA)
Inventor: HOGAN JAMES A
IPC: G06F11/00
Filed: 1978-05-16
Granted: 1981-12-15
Abstract: ABSTRACT    A process control system having a plurality of process controllers each connected to a data highway to receive and send process control data is controlled by a backup director receiving input signal from each of the plurality of process controllers to sense the operability thereof.  A backup controller is also connected to the data highway and has its highway address controlled by the backup director in response to a failure of one of the regular process con-trollers whereby the backup controller is directed by the backup director to assume the address of the failed con-troller.  The data highway interface circuits of the failed controller are concurrently disabled whereby the backup controller provides a substitute for the full operation of the failed controller.
Patent CA-1090422-A (CA)
Inventor: PODLEWSKI JOHANN
IPC: H02M1/08
Filed: 1978-05-26
Granted: 1980-11-25
Abstract: ABSTRACT OF THE DISCLOSURE       In order to moni.tor the conduction cutoff phase angle.s of a plurality of controllable rectifiers arranged in two groups in a rectifîer bridge, a signal proportional to the angle for each rectifier is stored in a respective sample and hold member after each occurrence of a positive blocklng voltage at that rectifier, and the minimum of the currently stored signals is observed.
Patent CA-1086205-A (CA)
Inventor: GASSER GEORGE E
IPC: A47C7/00
Filed: 1978-06-05
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE     A continuously hollow edge member is applied to the edges of portions of a chair to protect and finish the same and provide visual indication of desirable locations for securing the welt and upholstery thereto; the edge member comprising: a continuous resilient member having an elongate body portion and a pair of spaced flanges extending outwardly from said body member, a hollow chamber in said body member between said flanges.  This invention distinguishes from other inventions by reason of the arrangement of the hollow chamber in said body member providing a continuous cushion.
Patent CA-1109511-A (CA)
Inventor: KII MASAMI
IPC: H01H33/90
Filed: 1978-06-26
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE          A circuit interrupter comprises a pair of interengaged contacts being relatively movable into a spaced apart position in a fluid for arc extinction; an arc space formed by the sep-aration of the contacts; a chamber connected to the arc space to store the fluid for arc extinction pressurized in the arc space; an outlet for discharging the fluid in the chamber through the arc space out of the chamber after separation of the contacts for a specific distance; and means for precompressing the fluid for arc extinction in the chamber dependant upon movement of the contacts in a direction for separation thereof.    .
Patent CA-1045618-A (CA)
Inventor: URWIN DONALD
IPC: B01J21/06
Filed: 1978-06-30
Granted: 1979-01-02
Abstract: Abstract of the Disclosure "IMPROVEMENTS IN AND RELATING TO PRDDUCTS"        A process for manufacturing a carrier for an active entity by neutralising titanium tetrachloride to precipitate TiO2 which is dried and then heated to prcduce a carrier having a hardness of 85 to 100, a bulk density of greater than 1.0 grams per millilitre, a specific surface area of from 0.6 to 2 square metres per gram and at least 90% of its TiO2 in the rutile form.   The carrier is particularly useful for supporting enzymes or vanadium pentoxide.
Patent CA-1101268-A (CA)
Inventor: VOLA MATHIAS J J M
IPC: G03G15/16
Filed: 1978-07-06
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a process for transferring a powder image which has been formed with magnetically attractable developing powder.  The process comprises the steps of magnetically transferring the powder image to an intermediate receiving member comprising zones of a first material, separated from each other by a second material, in which either the first or the second material is magnetizable and the other material is non-magnetizable, and subsequently transferring the powder image from the intermediate receiving member to a final receiving material.  The magnetizable material present on the intermediate receiving member may be a material having no remanent magnetism, but in a preferred embodiment thin material has a remanent magnetism of at least 2 kA/m.  Transfer of the powder image to the intermediate receiving member is effected by magnetizing the powder image or the magnetiz-able zones of the receiving member and contacting the powder image with the receiving member.
Patent CA-1081170-A (CA)
Inventor: GROOSS FRANK A
IPC: E02F9/00
Filed: 1978-08-11
Granted: 1980-07-08
Abstract: LIFT ARM ASSEMBLY     ABSTRACT OF THE DISCLOSURE            A low-profile front end loader vehicle has the bucket located as close to the front wheels as is possible without sacrificing strength and maneuverability.  The lift arms are shortened and reshaped in the midportion to lower the low position of the lift arms.  An irregularly shaped reinforced tubular crossbrace is provided and has end plates which coact not only with external plates on each arm for attachment of the lift cylinders to said arms, but also coact with brackets carried by said cross-brace to support the tilt arms thereon.  The respective plates strengthen the lift arms and the reinforced cross-brace has internal stiffness that resists torsion and bending to provide an improved compact lift structure.
Patent CA-1090313-A (CA)
Inventor: LEEKER JUERGEN
IPC: F42B10/06
Filed: 1978-10-10
Granted: 1980-11-25
Abstract: ABSTRACT A sub-calibre arrow-shaped missile is provided having a drag stabi-lizing rear part of larger diameter than the missile and at least two bores are located in said rear parts the bores being located outwardly of the body of the missile.  Such missiles are particularly useful for penetrating armour-plated targets.
Patent CA-1104312-A (CA)
Inventor: BAILEY ALAN C
IPC: C03B37/027
Filed: 1978-10-31
Granted: 1981-07-07
Abstract: APPARATUS FOR MINIMIZING DRAWN FILAMENT           DIAMETER VARIATION                 Abstract of the Disclosure An apparatus is disclosed for drawing glass optical waveguide filaments having minimal diameter variation. A draw blank is supported within an elongated, heated, tubular muffle which heats the blank to its draw temperature.  Gas is supplied to that end of the muffle opposite that from which the filament is drawn.  A cylindrically shaped member at least 10 cm long is disposed adjacent to the end of the blank opposite the filament to form with the inner wall of the muffle a thin, cylindrically-shaped channel through which the gas must flow.  The gas stream is thus uniformly heated at the time that it reaches the root of the filament so that diameter variations due to gas turbulence are minimized.
Patent CA-1093417-A (CA)
Inventor: LEBET JEAN-PIERRE
IPC: A24D3/02
Filed: 1978-12-06
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE       A continuous strand consisting of loose filamentary and/or fibrous material is brought into engagement with a conveying and forming belt in at least approximately tension-free condition by means of at least one continuously moving conveying element which extends into the strand-gripping zone of the conveying and forming belt and which engages the interior of the strand. Next the strand is enveloped and brought to the desired cross-section by said belt. After achieving the desired cross-sectional form of the strand, the strand material is interfixed. The thus formed form-stable rod is then divided into rod-shaped portions by a cutting-device.
Patent CA-1102345-A (CA)
Inventor: BODOR NICHOLAS S
IPC: C07D283/00
Filed: 1978-12-18
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE:         The invention is concerned with novel pharmaceutically active compounds of the formula:            (I)       or (II)                 wherein:         represents a tertiaxy amine:    represents an unsaturated amine; R2, R3 and R4, which may be the same or different, each represents a hydrogen atom; a C1-C8 open chain alkyl group or cycloalkyl or cycloalkenyl group having up to 8 carbons; an alkoxyalkyl group having up to 8 carbon atoms; an acyloxyalkyl group having up to 8 carbon atoms; a C1-C8 haloalkyl group; a carboxyalkyl group having up to 8 carbon atoms; an alkenyl-phenyl group wherein the alkenyl portion contains up to 8 carbon atoms; an aryl group; a substituted aryl group whose substituent are selected from the group consisting of a halogen atom, an O-lower alkyl (C1-C4) group, an O-acyl group, a nitro group, a carboxyl group, and a carboethoxy group; a -CH2OCOR1 qroup in which R1 is as defuned below; a -OH group; a halogen atom; a -OCOR1 group in which R1 is as defined below; or a -ONO2 group; with the proviso that at least two of the R2, R3 or R4 substitutients must be a substituent other than a hydrogen atom; with the further proviso that at least one of the R2, R3 and R4 substituents which is other than hydrogen must also be other than alkyl, alkoxyalkyl, acyloxyalkyl, haloalkyl, carboxyalkyl or halogen; and with the yet further proviso that R2, R3 and R4 taken together must contain at least 5 carbon atoms; or R2, R3 and R4, together with the .alpha.-carbon atom to which they are attached may form a fused polycarbocyclic ring or a polyheterocyclic ring;          R1 represents any member defined by R2, R3 or R4 above;        X represents -O- or -S-; and Y represents a halogen atom or any other organic or inorganic monovalent equivalent anion.  The compounds of the invention are characterized as having excellent anticholinergic antisecretory activity, while exhibiting low toxicity following therapeutic application.
Patent CA-1117971-A (CA)
Inventor: REIFENBERG GERALD H
IPC: C07C321/22
Filed: 1979-01-11
Granted: 1982-02-09
Abstract: Abstract of the Disclosure A process for preparing alkaline earth metal mercaptides in a two-step process, useful as synergists for organotin stablizers in halogen containing resins such as polyvinyl chloride, comprising:          (1) reacting a metallic oxide or hydroxide of the metal desired in the final mercaptide; a magnesium aluminum or calcium alkoxide; and an alcohol to provide an alkoxide of the metal of the final mercaptan; and then (2) reacting the final alkoxide of (1) with a mercaptan to provide the desired metal mercaptide.
Patent CA-1109932-A (CA)
Inventor: MESLENER GEORGE J
IPC: H03M5/18
Filed: 1979-02-20
Granted: 1981-09-29
Abstract: UNIPOLAR TO BIPOLAR CONVERTER                     ABSTRACT OF THE DISCLOSURE          A unipolar to bipolar converter includes a source of unipolar data pulses and of noise pulses.  Each data pulse has a pulse width in excess of a time duration t.  Each noise pulse has a pulse width less than the time duration t.  A one-shot multivibrator, with an input coupled to the source, normally provides a first output signal indicative of one binary state. The multivibrator switches to a second binary output state for the time duration t when the multivibrator receives the leading edge of one of the pulses (data or noise).  A flip-flop, coupled to receive the output signals of the one-shot multi-vibrator, and further adapted to receive the source pulses, provide es a first output signal at one fixed binary state upon the simultaneous presence of one of the source pulses and the first output signal from the one-shot multivibrator.  Otherwise, the flip-flop provides a second output signal at the opposite fixed binary state.  A second one-shot multivibrator, coupled to receive the output signals from the first flip-flop, normally provides a first output signal indicative of one binary state. The second one-shot multivibrator switches to a second output signal indicative of the other binary state for a time duration t1 (which is not necessarily the same as the time duration t) when it receives the trailing edge of the first output signal from the first flip-flop.  A second flip-flop coupled to receive the output signals from the second one-shot multivibrator, provides alternate output signals indicative of the two binary states.  The second flip-flop switches state upon receipt of the trailing edge of the second one-shot multivibrator second output signal.  The second flip-flop and the source pulses control means for providing an output signal which corresponds to the alternate switching of the polarity of the source pulses, de-pendent upon the state of the second flip-flop alternate output signals.
Patent CA-1124031-A (CA)
Inventor: WELLS BRUCE D
IPC: C01B25/235
Filed: 1979-02-23
Granted: 1982-05-25
Abstract: Abstract of the Disclosure In a process for regenerating the activated carbon and in the purification of brown phosphoric acid or alkali phosphates obtained via the so-called wet process employing mineral acid digestion of crushed phosphate rock, the activated carbon used to filter brown H3PO4 is removed from service, washed with water, the initial washings being recovered to reclaim phosphoric acid, and then steeped in a basic aqueous solution, e.g., aqueous alkali hydroxide, alkali carbonate, ammonium hydroxide, loweralkyl amines or loweralkanol amines. After again water washing the activated carbon, to remove residual base, the activated carbon is either returned to service or steeped in an aqueous solution of mineral acid, e.g., sulfuric, hydrocloric, or nitric acid, again washed with water to remove residual acid and returned to service. Usually, the acid steep need not be employed with every base cycle to maintain good decolorization, although if desired  the acid steep can be used with each caustic cycle.
Patent CA-1114468-A (CA)
Title: Bloc de jonction a carte de circuit imprime
Inventor: RICHARD ANDRE
IPC: H01R9/26
Filed: 1979-03-16
Granted: 1981-12-15
Abstract: L'invention est relative à un bloc de jonction carte de circuit imprimé comprenant une embase ayant des côtés destinés à être assemblés côte à côte avec les côtés de l'embase d'un bloc de jonction adjacent pour constituer une barrette de raccordement, une face inférieure destinée être fixée sur un support commun, une face avant, une face arrière et une face supérieure destinée à des raccordements de circuits électriques.  Le bloc est caractérisé en ce que la face supérieure de l'embase comporte des supports isolants d'une rangée de barres électriques, disposées parallèlement à l'axe longitudinal de la barrette de raccordement et communes à l'ensemble des blocs de la barrette, et des plots de contact disposés en regard desdites barres et parallèlement à cellesci, lesdits plots étant reliés à des bornes de raccordement extérieur disposées sur les faces avant et arrière de l'embase, et en ce qu'une carte de circuit imprimé est disposée transversalement sur lesdites barres, le bord inférieur de la carte étant muni de bornes embrochées sur les barres électriques et les plots de contact.  L'invention s'applique à la réalisation des installations de commande et de contrôle d'appareils électriques.
Patent CA-1116802-A (CA)
Inventor: BOKROS JACK C
IPC: A61F2/24
Filed: 1979-04-05
Granted: 1982-01-26
Abstract: ABSTRACT          A heart valve prosthesis has an annular valve body with a central circular passageway and a pair of valve leaf-lets supported for pivotal movement between closed and open positions.  Guides formed with spheroidal surfaces protect in opposite directions along the pivotal axis of each leaflet and are received in spheroidal depressions in a pair of up-standing, diametrically opposite supports.  The supports are formed with stops outside of the depressions which contact the upstream surface of the leaflets at a region apart from the spheroidal guides and determine the open position.
Patent CA-1100360-A (CA)
Inventor: LECOMTE JEAN-LUC
IPC: B65G47/46
Filed: 1979-07-27
Granted: 1981-05-05
Abstract: IN THE PATENT OFFICE            PATENT APPLICATION     IN THE NAME OF            NODET-GOUGIS        ABSTRACT OF THE DISCLOSURE   Method and apparatus for distributing pulverulent or particulate materials to a plurality of dispensing points, e.g., for sowing seeds of spreading fertilizer. A supply conduit carrying a main stream of material,for example, entrained in air,arrives at the center of a distributor head with a circular periphery.  A deflector or distributor cone or a revolving nozzle distributes the material to a plurality of inlet ends of discharge hoses. Pairs of discharge hoses with their inlet ends located diametrically opposite each other are combined for supplying each dispensing point with a constant uniform flow rate irrespective of the inclination of the distributor head when operating on rough terrain.
Patent CA-1143001-A (CA)
Inventor: ANIZAN PAUL
IPC: G02F1/15
Filed: 1979-08-23
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE           An electrolytic display process applicable in telecopier or display apparatus comprised of locally generating an optical absorption at the surface of an electric conductive layer connected to an anode.  The layer is comprised of an optically diffusing powder and a metal compound.  The optical absorption is produced at the contact point between a cathode and the aforenoted surface.  The powder is not photosensitive for natural or artificial light.  The powder is white, preferably comprised of a mineral oxide such as Ag2O.
Patent CA-1115326-A (CA)
Inventor: BUEHNER WILLIAM L
IPC: B41J2/485
Filed: 1979-09-18
Granted: 1981-12-29
Abstract: MULTIPLE SPEED INK JET PRINTER                      Abstract of the Disclosure Disclosed is a multi speed ink jet printer in which alternate vertical scans of the ink stream may be omitted or alternate dots horizontally may be omitted or a combination of the two.  In the alternate vertical scan omit mode, a factor of two increase in the speed of printing may be obtained, the same being true of a horizontal row dot omission.  Moreover, a combination of the two permits up to a four times speed increase.  In essence, while the rate of the ink stream remains constant, the predetermined maximum number of dots (picture elements) in a character box is decreased (resolution decreased) to permit an increase in the speed of printing.
Patent CA-1105369-A (CA)
Inventor: ISALSKI WIESLAW H
IPC: B01D53/04
Filed: 1979-09-20
Granted: 1981-07-21
Abstract: TITLE:  RECOVERY OF HYDROGEN AND AMMONIA FROM PURGE GAS            ABSTRACT     Ammonia and hydrogen values are recovered from the purge gas from an ammonia synthesis recycle stream by removing the ammonia from the purge gas by adsorption in an ammonia adsorber, thereafter separating the hydrogen by cryogenic partial condensation, the refrigeration for which is provided by expanding and evaporating the condensate, and recovering the ammonia from the adsorber by heating a part of the hydrogen and using it as the regenerating gas for the adsorber, the heat for heating the hydrogen preferably being provided by combusting a part of the evaporated condensate recovered from the cryogenic partial condensation.