baber/WOPTO huggingface dataset:
Patent CA-2002673-A1 (CA)
Title: Glass plate fusion for macro-gradient refractive index materials
Inventor: HAGERTY JAMES J
IPC: G02B6/13
Filed: 1989-11-01
Abstract: A glass block (10) comprises a plurality of intermediate glass plates (12i) stacked between a top plate (12t) and a bottom plate (12b). The top and bottom plate each have a selected composition, with a particular index of refraction and a softening temperature. The intermediate plates have compositions intermediate those of the top and bottom plates and are stacked so as to provide a gradient in composition from top to bottom. Heating the assembly at a fusion temperature fuses the plates together to form the glass block. After cooling down to room temperature, the glass block can be shaped to make lenses and other light directing devices. Such lenses have a gradient in the refractive index of at least about 0.085, and gradients approaching 0.5 are achievable. The thickness of the glass block along the optic axis is fairly unlimited, and thicknesses on the order of 10 mm and more are routinely achievable by the process of the invention.
Patent CA-2004157-A1 (CA)
Title: Degassing apparatus for mold
Inventor: KURIYAMA MINORU
IPC: B22D17/14
Filed: 1989-11-29
Abstract: Abstract of the Disclosure A degassing apparatus for a mold includes a degassing valve, an acoustic wave detecting unit, and a valve closing unit.  The degassing valve is located at an end portion of a degassing passage extending from a mold cavity.  The acoustic wave detecting unit is arranged midway along the degassing passage and detects an acoustic wave generated when a molten metal collides against a wall surface of the passage, and thereby detecting passing of the molten metal.  The valve closing unit closes the valve when a detection signal level is higher than a reference signal level.
Patent CA-2004785-A1 (CA)
Inventor: PIERRAT MICHEL A
IPC: F02B3/06
Filed: 1989-12-06
Abstract: ABSTRACT OF THE DISCLOSURE          Rectangular pistons are driven in a circular orbit by two spaced eccentrics on a common crankshaft.  The displacement chambers reciprocate with a lateral motion parallel with the crankshaft. The radial forces created by the fluid pressure in the displacement chambers are balanced by a connection to the crankshaft through rotatable and slidable antifriction bearings.  During the reciprocating lateral motion of the chambers, port openings located in the outer ends of the chambers are connected alternately to matching intake and exhaust port openings in the adjacent surfaces of the casing to provide a reversible valveless control of the fluid to and from the chambers.  The apparatus can be used either as a pump or motor without internal modifications.  The pistons are secured together as one piece and follow identical orbital paths.  Each pair of opposing displacement chambers are secured as one piece and radially connected to the crankshaft. The displacement of the apparatus is continuously variable from zero to its maximum.  The apparatus is dynamically balanced by two counterweights, with adjustable eccentricities.     v1-902-1
Patent CA-2005080-A1 (CA)
Title: Exhaust muffler for marine engines with two rows of cylinders
Inventor: RODSKIER CHRISTIAN
IPC: F01N13/08
Filed: 1989-12-11
Abstract: Abstract An exhaust muffler for marine engines with two rows of cylinders, especially V-engines. The exhaust muffler comprises a horizontal cylindrical container (20) mounted transverse to the rows of cylinders and having an exhaust inlet (26) and an exhaust outlet (27) for each row of cylinders. The container is mounted between the rear of the engine (1) and the boat transom (3).
Patent CA-2005213-A1 (CA)
IPC: A44B19/12
Filed: 1989-12-12
Abstract: A coupling element for slide fastener is formed from a monofilamentary material such as polyester, nylon and like thermoplastic resins into a continuous meandering or zig-zag structure having a substantially semi-circular transverse cross-section, the coupling element having a coupling head, an upper leg and a lower leg extending oppositely from said head in parallel spaced apart relation and a heel interconnecting each of the upper and lower legs.  The heel is oriented by rotation through 90° or 180° and protrudes at least in part beyond the outer surface of the leg thereby providing increased surface area of the heel for sliding contact with a slider.
Patent CA-2007042-A1 (CA)
Inventor: SHAW KEITH JAMES
IPC: B29C53/82
Filed: 1990-01-03
Abstract: ABSTRACT OF THE DISCLOSURE            The pipe winding apparatus includes a station-ary cage formed by rods between two rings. The speciality is that at least a number of the cage rods is located oblique between the rings by the pitch of the strip to be wound helically and is driven such that the strip to be wound can be fed at a right angle against the driven rods. This allows an optimal utilisation of the friction-al forces between the strip and the rods and to wind the pipe by the drive of the rods and to advance the pipe produced thereby.
Patent CA-2007721-A1 (CA)
Inventor: ROMINE HUGH E
IPC: D01F9/155
Filed: 1990-01-12
Abstract: A clean pitch suitable for the manufacture of carbon artifacts is obtained by distilling from an aromatic feedstock a distillate material free from mesophase and mesophase forming resins.      The distillate is heated to obtain a heat soaked distillate free from mesophase but containing mesophase forming resins. The heat soaked distillate is further heated with inert gas sparging to convert it to mesophase pitch suitable for manufacturing carbon fibers. The heat soaked distillate also finds use as a binder or impregnation pitch.
Patent CA-2009087-A1 (CA)
Inventor: ROSSINI FELICE
IPC: B41C1/18
Filed: 1990-02-01
Abstract: METHOD FOR PRODUCING PLASTICS CYLINDERS FOR PRINTING IN GENERAL, IN PARTICULAR FOR ROTOGRAVURE AND FLEXOGRAPHY, AND THE CYLINDER         OBTAINED.                          ABSTRACT             The method according to the invention consists essentially of (a) preparing an inner cylindrical tube of self-supporting rigid material, advantageously epoxy resin reinforced with glass or carbon filament or fabric, (b) coating said cylindrical tube with an expanded plastics material, advantageously rigid polyurethane, (c) making the outer surface of said coating perfectly smooth, (d) making said outer smooth surface expanded material by applying metallic materials in any manner, and (e) making said electro-conductive surface engravable, advantageously by applying electroplated copper or applying engravable materials of photopolymer type.
Patent CA-2012026-A1 (CA)
Title: Eyewear with rearview mirror
Inventor: ALLEN JAMES H
IPC: G02C7/14
Filed: 1990-03-13
Abstract: EYEWEAR  WITH REARVIEW MIRROR          Abstract of the Disclosure A rearview mirror is connected to a frame for the eyewear,  the rearview mirror being movable between a use position spaced from the frame and a storage position juxtaposed to the frame.  A seat is defined in the frame so that the mirror is receivable in that seat when in the storage position,  thereby tending  to  minimize  breakage  of  the  device  upon inadvertent contact with a user's hand or clothing when the mirror is stored.
Patent CA-2016140-A1 (CA)
Inventor: GUAY DENIS
IPC: G01B5/30
Filed: 1990-05-02
Abstract: 2. Dans le domaine du redressage des voitures accidentées (à chassis standards et caisses monocoques), les systèmes de mesure sont normalement ancrés à la machine à redresser et sont donc à recalibrer au fur et à mesure de la réparation, suite aux tractions. Dans la présente invention, le système de mesure est ancré au véhicule lui-même et reste calibré durant toute la réparation du fait qu'il obéit à la distorsion du véhicule durant la traction. De plus, sa forme en "T" indique très facilement la perpendicularité, la longueur et la ligne centrale du véhicule.
Patent CA-2016907-A1 (CA)
Title: Expanding shaft assembly
Inventor: BORUTA MICHAEL
IPC: B65H75/24
Filed: 1990-05-16
Abstract: Abstract of the Disclosure An expanding shaft assembly includes a one-piece shaft having a channel therein, a single leaf member assembled together with the shaft and received within the channel for radial movement relative to the shaft between retracted and extended positions, and an expandable bladder located in the channel and expandable to move the leaf member to its extended position defining an extended condition for the expanding shaft assembly.
Patent CA-2020495-A1 (CA)
Title: Silicon carbide microcrystalline fibres and production process of same
Inventor: DISSON JEAN-PIERRE
IPC: C30B25/00
Filed: 1990-07-05
Abstract: The fibres consist essentially of  beta  crystalline variety, are essentially rectilinear and have a mean diameter of between approximately 0.5 and approximately 4  mu m, a length of between 20 and 300  mu m and an aspect ratio higher than 20. The process for preparing them comprises the manufacture of granules based on silica, carbon black and catalyst and bringing them into contact with an atmosphere of hydrogen and nitrogen and/or ammonia.
Patent CA-2021847-A1 (CA)
Inventor: KIKUCHI HAJIME
IPC: H04M1/72505
Filed: 1990-07-24
Abstract: ABSTRACT OF THE DISCLOSURE            A radiotelephone system having a base unit and a plurality of subordinate units for carrying out radiocommunication between them.  The base unit has one or more sending sections and one or more receiving sections, and each of the subordinate units has a sending part and a receiving part.  The system includes a first frequency varying part for shifting periodically sending carrier frequencies of the sending section as well as receiving carrier frequencies of the receiving section to make one sending or receiving carrier frequency at a phase different from that at another preceding phase, a first synchronizing signal part for generating a synchronizing signal in step with a time period determined from said shifting of those carrier frequencies of the base unit due to the first frequency varying part, a second synchronizing signal part for extracting a synchronizing signal from a receiving carrier signal of each receiving part of the subordinate units, and a second frequency varying part for shifting receiving and sending carrier frequencies of each subordinate unit to make one sending or receiving carrier frequency at a phase different from that at another preceding phase in step with a time period determined by the synchronizing signal.
Patent CA-2023032-A1 (CA)
Inventor: BACHOT JEAN
IPC: C25B9/23
Filed: 1990-08-09
Abstract: La présente invention concerne des diaphragmes exempts d'amiante pour des cellules d'électrolyse, l'association de tels diaphragmes à un élément cathodique et un procédé d'obtention de tels diaphragmes et d'association de tels diaphragmes à un élément cathodique, par voie humide. Elle vise plus particulièrement un diaphragme microporeux susceptible d'être formé in-situ par voie humide comprenant une nappe fibreuse, exempte d'amiante, dont les fibres sont microconsolidées par un polymère fluoré, l'ensemble étant fritté, ladite nappe renfermant essentiellement de 3 à 35 % en poids de polymère fluoré, liant des fibres, de 0 à 50 % en poids d'un gel d'oxohydroxyde d'au moins un métal des groupes IVA, IVB, VB et VIB de la classification périodique ou des séries des lanthanides et des actinides, de 20 à 95 % en poids d'un mélange de fibres polytétrafluoroéthylène et de fibres minérales, les fibres minérales représentant de 1 à 80 % en poids dudit mélange et étant choisies parmi les fibres de carbone, de graphite, de titanate et leurs mélanges et son éventuelle association à une nappe précathodique. Ces diaphragmes et associations sont notamment utilisables dans les cellules d'électrolyse chlore-soude.
Patent CA-2028303-A1 (CA)
Title: Pesticidal composition
Inventor: OHTSUBO TOSHIRO
IPC: A01N25/28
Filed: 1990-10-23
Abstract: ABSTRACT OF THE DISCLOSURE         An insecticidal and/or acaricidal and/or nematicidal composition having a rapid efficacy and residual activity which comprises a mixture of a poorly water-soluble organophosphorus insecticide and/or acaricide and/or nematicide and/or a poorly water-soluble carbamate insecticide and/or acaricide which have been microencapsulated in water-insoluble polymer coatings with a dispersing agent used in forming a microcapsule part, with a poorly water-soluble pyrethroid insecticide and/or acaricide emulsified or suspended in water with the above-mentioned dispersing agent used in forming a flowable part.
Patent CA-2028982-A1 (CA)
IPC: F21V21/02
Filed: 1990-10-31
Abstract: ONE PIECE WALL MOUNTING BRACKET                    Abstract of the Disclosure A one piece wall mounting bracket comprising a plastic body including a front wall and an integral peripheral wall extending  from  the  front  wall  and  having  a  free  edge.          Diametrically opposed portions of the free edge of the peripheral wall are formed with notches such that those peripheral portions can engage siding on wall of a building.  The portions with the notches are preferably convex to firmly engage the siding. These wall portions can be readily severed to form a straight edge.  A portion of the free edge of the wall is formed with a groove for receiving caulking.   The groove is defined by a radially peripheral bead on the free edge which includes spaced walls forming the groove for receiving caulking compound.
Patent CA-2032405-A1 (CA)
Title: Organic compounds
Inventor: JELLIS CINDY L
IPC: C12N15/75
Filed: 1990-12-17
Abstract: - 58 -            Case 136-7117 ABSTRACT      Particularly effective B.t. insecticides are obtained by culturing to the sporulation stage novel transformant obtained on transforming B.t. kurstaki H.D. 562 with DNA expressing in the B.t. certain mutant endotoxin genes.  Such transformants and other B.t. transformants generally may be obtained in high transformation frequencies by the electrotransformation of B.t. cells while in a hypertonic state followed by maintaining the cells in a hypertonic medium for a time sufficient to obtain intact cells.  Transformation of B.t. tenebrionis and B.t. aizawai is also described.
Patent CA-2034759-A1 (CA)
Title: Novel ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives
Inventor: SONG WON R
IPC: C10L1/14
Filed: 1991-01-22
Abstract: The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.
Patent CA-2035469-A1 (CA)
Title: Device for guiding an osteotome during osteotomy of long bones
Inventor: BAUMGART RAINER
IPC: A61B17/16
Filed: 1990-07-04
Abstract: Abstract The device for guiding an internal saw (43) for the osteo-tomy of long tubular bones (50) has an elongate stem (103, a mandrel (20) which projects centrally from one end of the stem and in its peripheral surface (22), parallel with its axis, there is recessed a longitudinal groove (23) which continues in the stem (10) and through it in a longitudinal recess orientated in alignment with the longitudinal groove and it also has a spacer sleeve (30) adapted to be longitu-dinally displaced and fixed on the mandrel (20).            Fig. 2
Patent CA-2037317-A1 (CA)
Title: Using a solvent for in-situ formation of fibers in an elastomer
Inventor: TUNG WILLIAM C T
IPC: C08L21/00
Filed: 1991-02-28
Abstract: Abstract of the Disclosure USING A SOLVENT FOR IN-SITU FORMATION OF FIBERS IN AN ELASTOMER     A method of preparing a fiber reinforced elastomer by forming fibers therein in-situ and an elastomer made thereby are provided.  In the method, a fiber forming material, preferably a high performance polymer, is dissolved in a compatible solvent to form a solvent/polymer mixture, and the mixture is added to the elastomer during compounding or mixing.  The polymer is quickly dispersed into the elastomer, and the solvent rapidly evaporates.  The shear of the mixer causes elongation of the polymer into fibers.  The fibers may also be oriented by the shear of the mixer.
Patent CA-2038558-A1 (CA)
Title: Adjustable stair rail
Inventor: SAPINSKI THOMAS A
IPC: E04F11/18
Filed: 1991-03-19
Abstract: PATENT     ADJUSTABLE STAIR RAIL            ABSTRACT OF THE DISCLOSURE     An assembly of a hand rail, a shoe rail, a plurality of parallel balusters joined to the hand rail and the shoe rail through a pair of intermediate plastic webs attached both to the baluster and the adjacent rail so that the rails and balusters can be moved to any angular disposition keeping the balusters parallel to each other and the hand rail and shoe rail parallel to each other.  The plastic webs include spaced tabs which are attached to each baluster end and provide total collapsibility to the rail section which is uni-versal in use to any rake of the stair.
Patent CA-2039979-A1 (CA)
Inventor: JACOBSON WILLIAM J
IPC: F41B5/22
Filed: 1991-04-08
Abstract: An apparatus for supporting an arrow on an archery bow. The apparatus having an adjustable resilient finger member which is circumferentially adjustable on an annular frame member. The finger member being tapered so that the resiliency increases in magnitude from the mounting end to the supporting end. The finger compensates for variable degrees of arrow distortion resulting in a maximum transfer of the energy from the blow string to the arrow.
Patent CA-2041070-A1 (CA)
Inventor: CHRISTELL LANCE A
IPC: C08L95/00
Filed: 1991-02-12
Abstract: TITLE                    EXTRUSION ISOLATION OF                   BLENDS OF RUBBER AND ASPHALT                     ABSTRACT OF THE INVENTION         Blends of asphalt emulsions or melts and aqueous elastomeric latices are prepared using a screw type extruder adapted to provide sufficient back pressure within the screw flights of the extruder to express the water from the blend through a vent provided in the extruder.
Patent CA-2042343-A1 (CA)
Title: Termination of mineral insulated electric cable
Inventor: BAKER HARRY
IPC: H02G15/04
Filed: 1991-05-10
Abstract: ABSTRACT      The rubber sealing cap of a mineral insulated cable termination has embedded in the circumferential wall of the cap effecting a circumferentially continuous, fluid-tight fit around the cut-back sheath of the cable, a resilient metal sleeve which protrudes from the end face of the tube and which has at its free end an inwardly extending flange which mechanically engages with the cable sheath and which is so inclined with respect to the cable sheath as to restrain the cap against removal from the cable.  The protruding flange preferably has at its free end a plurality of circumferentially spaced teeth which engage with the cable sheath.
Patent CA-2043860-A1 (CA)
Inventor: ESANU ANDRE
IPC: A61K31/435
Filed: 1991-06-04
Abstract: The invention relates to pyrrolo-pyridine derivatives of the formula:      (1) wherein R represents a phenyl group, optionally substituted by one or more of various groups and therapeutically acceptable salts of these compounds, to a preparationprocess of the same comprising reacting, in an inert atmosphere and in a protic solvent, the 2-methyl 3-hydroxy 4,5-dibromomethyl pyridine, on a stoichiometric excess of the compound of the formula NH2-R. The invention relates also to therapeutic compositions containing said derivatives as active ingredient. The compounds according to the invention have antiallergic activity.
Patent CA-2049244-A1 (CA)
Title: Process for absorption of sulfur compounds from fluids using heterocyclic compounds having at least one ring nitrogen atom
Inventor: CHRISTIANSEN STEVEN H
IPC: C07D233/72
Filed: 1991-08-15
Abstract: ASSTRACT       Sulfur dioxide is removed from a fluid containing SO2 by employing as an absorbent for the SO2 an aqueous solution of a compound represented by Formula I:                              Formula I wherein X is -O-, -NR1-, or -N=; each Y is independently - , -(C=0)-, -O-, -NR1-, -N=, or -C(R2)=; each R1 or R2 is independently hydrogen; an alkyl group; a hydroxyalkyl group; an aldehyde group; a carboxylic acid or salt group; or an alkyl group containing an aldehyde group, a carboxylic acid or salt group, ketone, carboxylic ester, ether, or sulfoxide group; and m is an integer preferably of from 2 to 4.  The absorbent solution preferably can be thermally regenerated by heating to remove SO2.   38,041-F
Patent CA-2053709-A1 (CA)
Title: Piperazine derivatives
Inventor: CLIFFE IAN A
IPC: A61K31/55
Filed: 1991-10-18
Abstract: 2,3,4,5,6,7-Hexahydro-1-{4-[1-[4-(2-methoxyphenyl)-piperazinyl]]-2-phenylbutyryl}-1H-azepine and the pharmaceutically acceptable acid addition salts thereof are 5-HT1A binding agents useful, for example, as anxiolytics.   (see formula I)
Patent CA-2054953-A1 (CA)
Inventor: KIRSCHENHEUTER GARY P
IPC: A61K31/404
Filed: 1991-11-05
Abstract: ABSTRACT   2-Heteroaromatic alkanoate esters of the formula:                               wherein:    R1 and R2, which may be the same or different, are selected from the group consisting of hydrogen, alkyl of 1 to 4 carbons, cycloalkyl of 3 to 6 carbons or together represent a methylene group -(CH2)n- where n is a whole number of 1 to 6, provided that R1 and R2 are not both hydrogen;    Ar is optionally substituted phenyl; and Het is a heterocyclic ring containing one or more N, S or O atoms in the ring; are useful as inhibitors of human leukocyte or neutrophil elastase and may be used for the treatment of emphysema, inflammatory diseases, dermatitis or ischemia/reperfusion injury.
Patent CA-2058784-A1 (CA)
Title: Earth drilling apparatus
Inventor: LLOYD THOMAS C
IPC: E21B3/00
Filed: 1992-01-06
Abstract: An earth drilling apparatus for use with a vehicle of a type which performs utility pole hole drilling operations is disclosed.      The apparatus attaches to an end of a movable boom mounted on the vehicle. The apparatus includes an elongated guide attachable to the boom and to the ground. A drill head is movably attached along at least a portion of the guide, and a drill bit is rotatably attached to the drill head. A loop of chain advances and retracts the drill means along the guide.
Patent CA-2059269-A1 (CA)
Title: Catalyzed nuclear fusion of heavy isotopes of hydrogen
Inventor: BRUMLIK GEORGE C
IPC: G21B3/00
Filed: 1990-06-14
Abstract: A nuclear fusion device and method for enhancing rates of fusion of nuclei of the isotopes of hydrogen having a solid/liquid phase of noble metals in contact with another phase containing deuterons or tritons wherein the nuclei of heavy hydrogen isotopes are moved into the lattice of the liquid noble metal by means of diffusion, mechanical forces, or by electrical or magnetic means to undergo temperature- and lattice-assisted nuclear fusion.