baber/WOPTO huggingface dataset:
Patent CA-2023875-C (CA)
Title: Ophthalmic prismatic image relocating eye glasses for persons having retinitis pigmentosa and hemianopia and method for making same
Inventor: ONUFRYK MICHAEL
IPC: G02C7/14
Filed: 1990-08-23
Granted: 1995-11-21
Abstract: A pair of rotatable optical image deflector assemblies is disclosed which are detachably mounted via an adapter bracket to a conventional eye testing apparatus.  Each optical image deflector assembly has a fixed light reflecting optical element, and a pivotal reflecting optical element.  The optical image deflector assembly directs light onto a peripheral area of a visually sensitive or functional area of the retina which is normal to the central field of the retina.  The pivotal optical element scans a pre-set field expanding test chart and projects an image thereof to the visually sensitive or functional area of the retina.  The optical image deflector assembly is usable in making prismatic eye glasses to expand the normal central field of view of a person suffering from retinitis pigmentosa or hemianopia.  The prismatic eye glasses refract images from a field outside the normal central field of view within and along the peripheral edge of the visually sensitive central area of the retina for expanding the normal central field of view.
Patent CA-2026022-C (CA)
Title: Multiple ring guide for payout testing of optical fibers
Inventor: STUBBS SCOTT F
IPC: G01M11/08
Filed: 1990-09-24
Granted: 1994-11-15
Abstract: A  fiber  optic  canister  (14)  is  tested by drawing  an  optical  fiber  (12)  from  a  generally cylindrical  bobbin (16) upon which it is wound, in a direction  parallel  to the longitudinal axis (18) of the  bobbin (16).  The optical fiber (12) is directed toward  the drawing location (30) of the payout drive (20),  and transverse vibrations in the optical fiber (12)  are  damped, by a guide (40) formed as a series of   spaced-apart   guide  rings  (42)  having  their centers  aligned  along  a  common  axis (50) that is preferably  coincident  with  the  axis  (18)  of the bobbin  (16).    The  guide  rings  (42) have central apertures  (44)  that  decrease  in diameter from the guide  rings  (42)  nearest  the canister (14) toward the  payout  drive  (20), defining a converging locus (36)  for  the  optical fiber (12) as it travels from the bobbin (16) to the payout drive (20).
Patent CA-2030501-C (CA)
Title: Form-memory stainless alloy and process for making the same
Inventor: MANTEL MARC
IPC: C22C38/38
Filed: 1990-11-21
Granted: 1999-12-28
Abstract: An iron-based stainless alloy exhibiting a so-called total shape memory effect consisting, after a mechanical deformation determined when cold, in a recovery of the initial shape on heating, characterised in that its weight composition is the following: 9 to 13 % of chromium, 15 to 25 % of manganese, 3 to 6 % of silicon, the remainder being iron and residual impurities resulting from the melting of the substances needed for the production, the proportion of the elements having to satisfy the relationship: 1.43(%Si) + 1(%Cr) </= 17. 
<??>The invention also relates to a process for the production of such an alloy.
Patent CA-2031112-C (CA)
Title: Minimizing hardware pipeline breaks using software scheduling techniques during compilation
Inventor: KING STEPHEN E
IPC: G06F9/45
Filed: 1990-11-29
Granted: 1997-05-06
Abstract: A compiler module is disclosed which minimizes pipeline breaks  by  reordering  object  code  instructions  to  avoid conflicts between closely grouped instructions to the extent possible.  Representation of each object code instruction in a small sequential group is temporarily held in a buffer and is assigned a pair of Attribute Words.  Potential conflicts which  a  newly  called instruction  may  have  with  those instructions  already  in  the  buffer  are  ascertained  by logically AND-ing  its Attribute Words with those of  the other instructions and examining the result.  If a conflict does exist, an attempt is made to resolve it by determining if the conflicting instruction already in the buffer can be moved ahead of one or more other instructions in the buffer such that the conflict is eliminated or minimized.   This procedure involves a comparison of the Attribute Words of the candidate instruction to be moved, Im, with the other instructions in the buffer.  If movement of the conflicting instruction is possible and will resolve or minimize the conflict, the instructions in the buffer are reordered as appropriate.
Patent CA-2036156-C (CA)
Title: Objective lens actuator for optical storage drive
Inventor: YAMAMOTO HIROSHI
IPC: G11B7/12
Filed: 1991-02-12
Granted: 1996-01-16
Abstract: An objective lens actuator for an optical storage drive includes a torsion plate spring (11) which has a substantially L-shaped transverse cross section and is fixed, at its central portion, to an objective lens holder (12) and, at its opposite ends, to free ends of a pair of parallel spaced, cantilevered plate springs (14).  The torsion plate spring (11) is caused to twist to displace the objective lens holder (12) and an objective lens (15) mount-ed thereon in the tracking direction.  The parallel spaced plate springs (14) are caused to bend to displace the objec-tive lens holder (12) and the objective lens (15) in the focusing direction.
Patent CA-2042801-C (CA)
Title: Reactor for processing a catalyst material
Inventor: WILSON MICHAEL F
IPC: B01J37/34
Filed: 1991-05-16
Granted: 1996-12-03
Abstract: A reactor for processing a catalyst material comprises a reaction chamber including a support for the catalyst material. A laser radiation entry means, a gas inlet and an exhaust are provided, each in communication with the reactionchamber. The gas inlet permits entry in the chamber of an oxidizing gas which assists in processing the catalyst material when exposed to laser radiation entering the chamber. Any resulting exhaust gases are then removed from the chamber through the exhaust. A drive means is provided to move the support in a manner such thatthe catalyst is moved through the laser radiation. The apparatus is useful in reactivate deactivated catalysts, such as hydroprocessing catalysts.
Patent CA-2044024-C (CA)
Title: Method and apparatus for preparing relief image printing plates
Inventor: WESSELLS FORREST A
IPC: G03B27/32
Filed: 1991-06-07
Granted: 2001-12-04
Abstract: A method is provided for producing relief images having improved image fidelity and resolution. The method comprises positioning an image bearing negative transparency closely adjacent and substantially parallel to a layer of a photocurable material; positioning on the other side of the negative from the photocurable material and in substantially parallel relationship thereto at least one louver having a plurality of open cells, each cell extending through the louver along an axis perpendicular to the negative and having reflective side surfaces contoured to reflect and redirect rays of radiant energy incident thereon to a direction more normal to the negative surface; and passing radiant energy which is capable of curing the photocurable material through the louver and the negative and onto and through the photocurable material for a time sufficient to form a latent relief image in the photocurable material. The present invention is further directed to an apparatus for producing a latent relief image using the above method. The apparatus comprises, in sequence, a planar support for the photocurable layer, a negative in substantially parallel relation to the support, at least one louver which is positioned parallel in its major plane to the negative, and, immediately adjacent to the louver, a radiation source for irradiating the photocurable layer through the louver and the negative and effecting curing thereof.      The method and apparatus of the invention are especially useful for the production of improved high resolution half-tone and line relief images.
Patent CA-2045500-C (CA)
Title: Method for discriminating recovered containers
Inventor: OSAKADA KUNIO
IPC: B07C5/342
Filed: 1990-01-19
Granted: 1995-01-17
Abstract: A method for discriminating recovered beverage contain-ers (10) is provided. The method comprises the steps of selecting any praticular color according to the color of the beverage con-tained in the container (10), measuring the area of the selected co-lor in the container (10), determining whether the measured area of the color is within the fixed range or not, and discriminating the beverage containers (10) in accordance with the determined result.
Patent CA-2059419-C (CA)
Title: Water softening process and apparatus
Inventor: KEDEM ORA
IPC: C02F5/00
Filed: 1992-01-15
Granted: 1998-09-22
Abstract: Process and apparatus for softening hard water by precipitation of calcium carbonate. The hard water is rendered alkaline, e.g. by the addition of sodium hydroxide, and is then contacted with a large excess of calcium carbonate crystals whose size does not exceed 100 microns, whereby precipitation occurs within a short contact time of the order of 2-60 seconds. Upon separation of soft water from  calcium  carbonate  the  bulk  of  the  latter  is recirculated and excessive amounts are removed.
Patent CA-2059991-C (CA)
Inventor: YAGI TAKAYUKI
IPC: G01P15/18
Filed: 1992-01-24
Granted: 1996-12-03
Abstract: An angular acceleration sensor has a weight member, a resilient member for supporting the weight member from the both sides thereof, the resilient member being disposed on a predetermined rotational axis and supporting the weight member for rotation about the rotational axis, and an opposed member opposed to the weight member, an angular acceleration applied to the weight member being detected from a variation in the spacing between the opposed member and the weight member resulting from the rotation of the weight member.
Patent CA-2062108-C (CA)
Title: Unique business form with label
Inventor: ASHBY ROBERT E
IPC: B42D15/00
Filed: 1992-02-28
Granted: 1994-07-26
Abstract: A business form having a removable label associated with it is made from a paper ply and a piece of transfer tape. The adhesive face of the transfer tape is attached to the paper ply rear face with the side edges of the transfer tape between tractor openings in the paper ply. At least one die cut is formed in the paper ply front face to define, with adhesive from the transfer tape, at least one label, and preferably a plurality of labels. A perforation may be provided in the paper ply at the interiormost edge of the transfer tape, and at the tractor openings most remote from the transfer tape. The paper ply may be the top ply of a multi ply form. During manufacture of the form, the die cut area surrounding the labels is removed to expose the release portion of the transfer tape, and that part of the form remote from the transfer tape, as well as the labels, can be simultaneously printed as the form is fed through a printer utilizing the tractor openings.
Patent CA-2063662-C (CA)
Title: Aqueous stable suspension of water-insoluble silicates capable of binding calcium ions and their use for the production of washing and cleaning agents
Inventor: LEONHARDT WOLFGANG
IPC: C09K23/42
Filed: 1992-03-20
Granted: 1996-01-09
Abstract: Aqueous suspension of a silicate capable of binding calcium ions, containing, based on the total weight of the suspension:  A) as silicate, a compound corresponding to Formula I:  (Cat2/nO)x  Me2O3  (SiO2)y  (I); and B) as dispersing component, a mixture of at least two oxoalcohol ethoxylates corresponding to Formula II:  R-(OCH2CH2)n-OH (II), wherein R = C10-Cl5 alkyl having a degree of branching of 0 to 90% linear and 100 to 10% single methyl branches, n = 3 - 5.25 mol EO in Component 1, and n = 5.5 - 7.0 mol in Component 2; and C) a polyethylene glycol having an average molecular weight of from 200 to 2000.
Patent CA-2064391-C (CA)
Title: Wooden structure member for use in a building
Inventor: WIEBE JACOB R
IPC: E04B2/74
Filed: 1992-03-30
Granted: 2001-08-21
Abstract: A wooden structural member for use as a stud in the wall of a building is formed from two strips of wood separated simply by elongate pins at right angles to the length of the strips. Each pin has pointed ends which are punctured into the wood of the strips to provide a frictional engagement therewith. After formation of the structural element, it is formed into the wall of a building and services can be threaded through the space between the strips following which insulation material is applied between each stud and the next and in between the strips thus increasing the insulation value of the wall, reducing the amount of lumber required and simplifying construction.
Patent CA-2070950-C (CA)
Inventor: ASHMORE GREGORY J
IPC: B23K37/04
Filed: 1992-06-10
Granted: 1995-07-04
Abstract: The present invention provides a method and apparatus for making joists.  The chord members of the joists consist of two pairs of spaced apart angle irons, and the web portion of the joists consist of a plurality of linear metal bar lengths.   Under a computerized control, the pairs of angle irons are spaced from one another  by  a  predetermined  distance  depending  on  the  design characteristics of the joist to be made, and the metal bar lengths are individually selected and cut to provide a metal bar having a specified diameter and a specified length, after which each of the metal bars is selectively positioned, in sequence, between the two pairs of angle irons,  and then each end of each metal bar is automatically welded to the angle irons in a predetermined sequence.
Patent CA-2071336-C (CA)
Inventor: BOUYANOV ROMAN A
IPC: B01J21/06
Filed: 1992-06-16
Granted: 1999-06-15
Abstract: L'invention concerne un catalyseur, notamment pour le traitement de gaz industriels contenant des composés soufrés, comprenant un support et une phase supportée formée en particulier d'une solution solide de composition moyenne A4V2O9, dans laquelle A est un élément métallique stabilisant le vanadium dans sa valence 5. L'invention concerne en outre un procédé de préparation dudit catalyseur consistant essentiellement à imprégner le support par une solution d'un sel soluble de l'élément métallique A et d'un sel de vanadyle. L'invention concerne en outre l'utilisation et un procédé pour le traitement de gaz industriels contenant des composés soufrés, notamment de l'hydrogène sulfuré et de l'anhydride sulfureux, en vue d'éliminer lesdits composés soufrés par la réaction de Claus, en particulier en présence d'oxygène, mettant en oeuvre ledit catalyseur.
Patent CA-2078463-C (CA)
Title: Control apparatus for air-conditioners
Inventor: MURATA HIROTAKA
IPC: F25B49/02
Filed: 1992-09-17
Granted: 2003-04-08
Abstract: Disclosed is multi-purpose indoor units and multi-purpose outdoor units are parallel-connected with each other by refrigerant pipes, and an operating capacity is obtained on the basis of the sum of the demanded capacities of the indoor units and on the basis of the compressor type and maximum capacity of the outdoor units using a control apparatus.
Patent CA-2081113-C (CA)
Title: Thiazolidine-2,4-dione derivative, salt thereof, and production of the same
Inventor: OHNOTA MICHIRO
IPC: A61P5/50
Filed: 1992-02-24
Granted: 2001-03-06
Abstract: The present invention provides novel thiazolidine-2,4-dione derivatives possessing blood sugar-lowering action and aldose reductase-inhibitory action, their salts, their preparative processes and drugs containing them, and relates to thiazolidine-2,4-dione derivatives represented by a general formula (1) (see formula I) [wherein R1 and R2 denote identically or differently hydrogen atoms or lower alkyl groups, R3 denotes a phenyl group, naphthyl group, benzoyl group or 5-membered or 6-membered heteroring and its benzene-condensed ring, which may have one or more substituents, A denotes a carbonyl group, sulfonyl group or bonding hand, and B denotes a lower alkylene, lower alkenylene or bonding hand], or their salts, or thiazolidine-2,4-dione derivatives represented by a general formula (2) (see formula II) [wherein R4 denotes a hydrogen atom or lower alkyl group, and R1 and R3 are same as above], or their salts.
Patent CA-2083678-C (CA)
Title: Atrial defibrillator, lead systems, and method
Inventor: ADAMS JOHN M
IPC: A61N1/372
Filed: 1992-04-07
Granted: 2000-05-30
Abstract: An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrillating pulse is provided after a predetermined number of consecutive R waves are non-coincidently sensed to assure reliable synchronization. The atrial defibrillator is also operational in a marker mode wherein a number of synchronization marker pulses are delivered to the heart for detection on an externally generated electrocardiogram. The atrial fibrillation detector of the defibrillator is normally disabled and is activated when the sensed ventricular activity indicates a probability of atrial fibrillation to conserve a depletable power source. A plurality of lead systems are also described for use with the atrial defibrillator which reduce the quantity of electrical energy required to defibrillate the heart and ensure that the delivered atrial defibrillating electrical energy is substantially confined to the atria of the heart.
Patent CA-2093763-C (CA)
Inventor: WAINWRIGHT DAVID
IPC: H01M10/44
Filed: 1993-04-08
Granted: 1999-12-07
Abstract: A novel battery construction which incorporates a disconnect safety device which is hydraulically activated by an increase in solid volume upon abusive overcharge of the battery to disconnect the cathode or anode. A rechargeable battery which comprises: (a) a Li x MO2 cathode wherein x, is equal to or less than 1.1,and M is Ni, Co, Mn or combinations thereof; (b) a carbonaceous anode; (c) an electrolyte of one or more lithium salts dissolved in one or more non-aqueous organic solvents; and (d) an internal disconnect device which activates by hydraulic means on overcharge.
Patent CA-2094751-C (CA)
Title: Resin composition for aqueous paints
Inventor: FUJIBAYASHI TOSHIO
IPC: C09D163/00
Filed: 1993-04-23
Granted: 2004-09-07
Abstract: A resin composition for an aqueous coating composition contains as a main component a cationic resin (U) having a primary hydroxyl group, obtained by reacting (A) a phenol-novolak epoxy resin, (B) a primary or secondary amine compound having a primary hydroxyl group, and (c) a phenol compound having at lest one phenolic hydroxyl group per molecule. The composition has improved water dispersibility, bath stability and pigment dispersibility, and is useful as a cationic electrodeposition coating composition.
Patent CA-2095355-C (CA)
Title: Ignition brake for internal combustion engine
Inventor: KANDLER WILLIAM C
IPC: F02B75/02
Filed: 1993-04-30
Granted: 1996-01-30
Abstract: A safety device for a single cylinder internal combustion engine powered implement includes a solid state ignition circuit for producing a spark in a spark plug.  The ignition circuit includes a first coil for generating a normally timed sparking voltage in the circuit for normal engine operation, and a second coil for generating an advanced timed sparking voltage in the circuit for stopping the engine.  The first and second coils are each disposed about the periphery of the flywheel and angularly displaced from each other.  A deadman control having a first and second position, selectively decouples one of the coils from the ignition circuit depending on the state of position of the deadman control.
Patent CA-2096857-C (CA)
Inventor: MCLEOD JOHN A
IPC: A63C3/00
Filed: 1993-05-25
Granted: 1997-12-09
Abstract: A  pair  of  toe  thrusting  blades  for  attachment  to goalkeeper ice skates which are attachable to the underside of the toe of the boot and extend sideways and forwards at the toe of the boot which are normally clear of the ice but which will engage the ice when the goalkeeper rolls his foot at an extreme angle.
Patent CA-2099515-C (CA)
Inventor: DEW ROGER BARLOW
IPC: A23L3/36
Filed: 1993-07-02
Granted: 2003-09-23
Abstract: Method for deep-freezing food products using a freezing tunnel (1) comprising an endless belt (3) having a helicoid structure (31), the products (4) to be frozen being arranged bearing, via their lower face, on the endless belt at the height of an orifice (21) for introduction of the products into the tunnel, which method is characterised in that the products to be frozen are arranged on the endless belt (3) in the cooled state, these products being cooled by a refrigeration assembly (5) arranged in proximity to the introduction orifice of the tunnel and including at least one cooling plate (6) over which, and bearing on which, a flexible, straight sheet material, supporting the product to be cooled, advances. <IMAGE>
Patent CA-2100995-C (CA)
Title: Combinations of polyorganosiloxanes and fluororubbers containing double bonds by si-h addition
Inventor: LANGSTEIN GERHARD
IPC: C08L27/12
Filed: 1993-07-21
Granted: 2004-02-10
Abstract: A chemically linkable mixture comprising (a) about 98 to 80% by weight of a fluoroelastomer bearing lateral olefinic double bonds, (b) about 2 to 20% by weight of at least one of a silicone oligomer, silicone elastomer and a fluorosilicone elastomer containing Si-H groups, and (c) a catalyst containing at least one of a noble metal and an organic peroxide.        Fluororubbers made therefrom are distinguished by excellent physical properties.
Patent CA-2101554-C (CA)
Title: Solubility compound fertilizer compositions
Inventor: VETANOVETZ RICHARD P
IPC: C05B17/00
Filed: 1992-01-31
Granted: 2002-04-16
Abstract: A solid complex fertilizer for dissolving in water to give a water-based precipitate-free phosphorous and calcium containing stock solution, the solid complex fertilizer comprising urea phosphate as the principal phosphorous source and calcium nitrate.
Patent CA-2101724-C (CA)
Inventor: SCHIMWEG JOHN J
IPC: B24B33/08
Filed: 1993-07-30
Granted: 1996-05-14
Abstract: A honing tool or mandrel mountable for rotation on a honing machine comprising a tubular abrasive sleeve member retained coaxially within a modular tubular honing assembly having an opening or passageway extending the entire length therethrough adaptable for insertably receiving an elongated expander member positioned for axial movement therewithin.  The modular tubular honing assembly includes a drive member for attaching to a typical honing machine, a cage member adaptable for slidably receiving the abrasive sleeve member, and a retainer member for holding the abrasive sleeve member in operative position within the cage member.  The abrasive sleeve member has inner and outer surfaces, the inner surface being conically tapered over its entire length while its outer surface includes a plurality of circumferentially spaced longitudinal projections positioned adjacent longitudinal channels, each projection including a honing surface having abrasive particles located thereon.  The abrasive sleeve member also includes an elongated slot extending along its entire length on one side thereof which enables such member to uniformly radially expand and contract when the expander member is axially moved therethrough, the expander member having at least a portion of its outer surface which extends through the abrasive sleeve member likewise tapered at the same conical taper rate as the taper associated with the inner surface of the abrasive sleeve member for making surface-to-surface contact with the tapered inner surface of the abrasive sleeve member.  Axial movement of the expander member within the abrasive sleeve member changes the diameter of the sleeve member uniformly along its entire length during a honing operation.