baber/WOPTO huggingface dataset:
Patent CA-2082590-A1 (CA)
Title: Epoxy floor roller tool and method of making same
Inventor: JACOBS WILLIAM A
IPC: A46B13/00
Filed: 1992-11-10
Abstract: An epoxy floor roller tool formed by spirally winding a continuous strip of carding cloth having wires protruding outwardly therefrom around a roller core tube.      The carding cloth wires are made of a cadmium plated steel which allows the wires to remain rigid even though quite thin and densely packed, whereby when the roller tool is rolled against a wet epoxy material spread over a floor surface, the wires will break even very small, closely spaced air bubbles in the epoxy, allowing the air to be released so that the voids caused by the air bubbles will flow closed without cratering before the epoxy hardens.
Patent CA-2082641-A1 (CA)
Inventor: BAKER RICHARD L
IPC: H04N19/94
Filed: 1991-05-10
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for encoding interframe error data in an image transmission system, and in particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, Employ hierarchical entropy coded lattice threshold quantization to increase the data compression of the images being transmitted.  The method and apparatus decimate an interframe predicated image data and an uncoded current image data, and apply hierarchical entropy coded lattice threshold quantization encoding to the resulting pyramid data structures.  Lossy coding is applied on a level-by-level basis for generating the encoded data representation of the image difference between the predicted image data and the uncoded original image.  The method and apparatus are applicable to systems transmitting a sequence of image frames(or other pattern data, such as speech) both with and without motion compensation.
Patent CA-2083053-A1 (CA)
Title: Method and machining apparatus for use especially in the sanding of items of wood in a sanding machine
Inventor: HUNDEB L KELD OTTING
IPC: B24B7/06
Filed: 1991-05-21
Abstract: In order to be able to sand the surface of an item (3) uniformly smooth, a sanding machine is used with sanding tools in the form of sanding rollers (29) which are rotated as well as turned in the same plane, and which at the same time herewith are also moved in a reciprocating manner transversely to and parallel with the direction in which the item is conveyed, whereby during the working stroke the sanding ele-ments on the sanding rollers (29) will sand at all pos-sible contact angles in relation to the item (3). The risk of sanding damage such as marks and grooves as a result of over-sanding, or the possible lack of sand-ing as a result of too sporadic contact, is herewith re-duced, and the best possible result is achieved. Fur-thermore, the wear on the sanding rollers (29) is com-pletely uniform, whereby their endurance is extended.     For the movement of the sanding rollers (29), there is used an apparatus comprising a motor-driven crank arm (7) which, in sliding engagement with a carriage which supports the sanding rollers (29), can drive the carriage forwards and backwards on rails (4) which extend transversely to the machine (1). There is here-by achieved a stable and robust construction which also gives the sanding rollers (29) an expedient move-ment characteristic, which compensates for the pre-dominantly longitudinal sanding movements to which the items are exposed in the outer areas.
Patent CA-2083661-A1 (CA)
Title: Detergent bleach compositions
Inventor: MARTENS RUDOLF J
IPC: C11D3/395
Filed: 1992-11-24
Abstract: C7291 (L) ABSTRACT            Detergent bleach compositions are disclosed comprising a surface active material, a peroxide bleaching agent and a dinuclear manganese complex as the bleach catalyst, characterised in that the composition comprises from 0-25% by weight of anionic surfactant and from 7.5-55% by weight of nonionic surfactant, the weight ratio of nonionic surfactant to anionic surfactant being at least 0.75 if the composition contains not more than 7.5% by weight of a carbonate, expressed as sodium carbonate, and at least 2.2. if the composition contains more than 7.5% by weight of a carbonate.
Patent CA-2084235-A1 (CA)
Title: Magneto-optical disk
Inventor: MURAKAMI YOSHITERU
IPC: G11B11/10
Filed: 1992-12-01
Abstract: A magneto optical disk comprising: a circular substrate; a recording layer, formed on the substrate, for magneto-optical recording of information; a readout layer, formed between the substrate and the recording layer, for the reproduction of information recorded on the recording layer, wherein the readout layer has a Curie temperature which is higher than the Curie temperature of the recording layer, and exhibits in-plane magnetization at room temperature and a change from in-plane magnetization to perpendicular magnetization when its temperature rises over a certain temperature as a result of the application of a light beam, and wherein the magnetic compensation temperature is set such that it increases from the peripheral edge of the magneto-optical disk toward the center thereof. When the magneto-optical disk is used with a magneto-optical recording and reproducing device using a CAV system, it achieves high-density recording and the reproduction of signals with reduced noise, without causing the light beam control system to be complicated.
Patent CA-2086040-A1 (CA)
Inventor: JAMALUDDIN ABUL K M
IPC: E21B43/24
Filed: 1992-12-22
Abstract: A  method  of  increasing  the  near-wellbore permeability of porous formation comprises exposing the formation to an elevated temperature of 400C or greater to cause dehydration of the clay lattices, vaporization of any blocked water, mud filtrate or other fluids, and/or destruction of the clay structure.
Patent CA-2086671-A1 (CA)
Title: Tooth with hard material applied to selected surfaces
Inventor: LUKAVICH PAUL J
IPC: E02F9/28
Filed: 1992-04-24
Abstract: Teeth are normally mounted to the cutting edge of a bucket to aid in the penetration of the material being worked. Furthermore, hard material has been applied to selective surfaces of the teeth to increse their wear life. It is advantageous to strategically size and position the application of hard material to the tooth in order to increase wear life and to simultaneously enhance the ability of the tooth to remain sharp for better penetration during the useful life of the tooth. In the subject arrangement, a first portion of hard material (32) having a predetermined width and length is applied to a bottom surface (22) of a tooth (10) and a second portion of hard material (34) having a predetermined width less than the width of the first portion of hard material is applied to a top surface (20) of the tooth. The first and second portions of hard material (32, 34) are applied extending from adjacent a transverse forward edge (28) in a longitudinal direction. The width relationship between the first and second portions of hard material (32, 34) and the location of the first and second portions of hard material (32, 34) both increase the wear life of the tooth (10) and maintains the sharpness of the tooth (10) during its useful life for better penetration of the material being worked.
Patent CA-2087735-A1 (CA)
Title: System for high-level virtual computer with heterogeneous operating systems
Inventor: SHI YUAN
IPC: G06F15/16
Filed: 1991-07-19
Abstract: A system facilitates a high level virtual computer (HLVC) in a heterogeneous hardware and software environment. A user specifies the hardware and software configuration of a virtual computer which is routed into a configurator (12), which activates a distributed process controller (14) and supporting components in the desired virtual computer. Each processor in the virtual computer is equipped with a language injection library (24) and runtime servers (daemons (20)). In one embodiment, the language injection library facilitates transference of data among the processors in the system during the execution of an application program, and isolates the details of coordinating the heterogeneous hardware and software in the virtual computer. The disclosed embodiments easily lend themselves to the construction of scalable special purpose processors.
Patent CA-2087803-A1 (CA)
Title: Printer with edge strip trimmer
Inventor: EUDY JAMES R
IPC: B41J11/68
Filed: 1993-01-21
Abstract: Abstract of the Disclosure A printer having first and second opposed sprockets positioned on opposed sides of a printer platen for feeding from an upstream to a downstream direction continuous-feed paper sheets having continuous-feed edge strips formed along the opposing sides of the paper sheets.   A edge strip trimming apparatus is provided in combination with the printer.  The edge strip trimming apparatus includes first and second edge strip trimmers.  Each of the edge strip trimmers have edge strip hold-down devices positioned in closely spaced-apart relation to one of the first and second sprockets for holding the edge strip against the sprocket as the paper is fed through the printer.  An inclined paper support bed extends inwardly from the edge strip hold down device to a point underneath  the  horizontal  plane  of  the  paper sheet  for progressively diverging the plane of the edge strip from the plane of the paper sheet as the paper sheets are successively fed through the printer. The support bed defines an edge surface.  The edge surface has a gradual compound curve which tapers outwardly towards the edge strip hold down device and forwardly in the direction from which the paper sheets are fed through the printer to separate the edge  strip  from the  paper  sheet by moving  the paper  sheet simultaneously away from the edge strip in a vertical and lateral plane thereby causing progressive simultaneous separation in two planes.
Patent CA-2089257-A1 (CA)
Title: Product containing growth factor and glutamine and use of growth factor for the treatment of intestinal mucosa
Inventor: KIHLBERG REINHOLD
IPC: A61K38/17
Filed: 1991-08-22
Abstract: This invention relates to a product containing a) glutamine or derivative or analogue thereof, b) short- or medium-chain fatty acid and c) a growth factor or analogue thereof for simultaneous, separate or sequential use having anabolic effects and useful for the treatment or prevention of malfunction or disease of the intestinal mucosa. The growth factor is GH, GRF, IGF-1 or IGF-2 and preferably IGF-1. The invention also relates to the use of GH, GRF, IGF-1 or IGF-2 for the manufacture of a medicament for the treatment or prevention of malfunction or disease of the intestinal mucosa.
Patent CA-2090406-A1 (CA)
Inventor: BLOW KEITH JAMES
IPC: H04B10/2507
Filed: 1991-09-03
Abstract: Un système de communication optique comporte un laser (10) commandé de façon à produire une chaîne d'impulsions solitoniques (12) transmise à un groupe diviseur de faisceaux (14, 20, 22) qui convertit cette chaîne d'impulsions (12) en une chaîne d'impulsions (24) ayant une fréquence d'impulsion double.  La chaîne d'impulsions (24) est modulée de façon à former un signal codé binaire par le modulateur (24), lequel produit une suite de chiffres binaires ayant chacun l'une des deux valeurs dans laquelle une suite de n impulsions solitoniques lumineuses, où n est un entier  1, est transmise à une fibre optique (4) et des répéteurs (6) servent de liaison de transmission à un récepteur (8).  La présente invention permet d'accroître la puissance moyenne dans un bit sans avoir à utiliser des impulsions plus brèves, ce qui serait nécessaire avec une densité d'une impulsion solitonique par bit comme dans les systèmes actuels afin d'éviter les limitations inhérentes à ces systèmes.  Le résultat est que la limite du bruit est transposée à des impulsions plus longues ce qui permet d'utiliser des débits binaires plus élevés même s'il y a un plus grand nombre de solitons dans chaque bit d'information qu'avec les méthodes de modulation à un soliton par bit.  La méthode réduit également le sautillement et élargit par conséquent la gamme de fonctionnement en transposant la limite à des impulsions plus longues.
Patent CA-2094420-A1 (CA)
Title: Composition and method for controlling silica and water soluble silicate deposition
Inventor: PEREZ LIBARDO A
IPC: C02F5/14
Filed: 1993-04-20
Abstract: ABSTRACT         A method for the inhibition of silica and silicate deposits on the internal surfaces of a water system consisting of adding to the water system a composition comprised of a blend of-two water soluble copolymers.  The first copolymer contains repeat units of maleic or acrylic acids and a phosphinic acid, or salt forms thereof.  The second copolymer contains repeat units of acrylic acid and allyl hydroxy propyl sulfonate ether, or salt forms thereof.
Patent CA-2094474-A1 (CA)
Inventor: HERRING LLOYD W
IPC: A47H1/02
Filed: 1993-04-20
Abstract: A window covering typically used for irregular shaped windows.  The cover includes a frame having two ends that can be connected together, such that the frame encloses and defines a curtain area that generally approximates the shape of the window.  The frame is typically constructed from a metal tube bent into the desired shape.  The window cover also includes a curtain that has a pocket along one edge.          The pocket is adapted to be pulled over the tubing to attach the curtain to frame.  To assemble the cover, the ends of the frame are disconnected and one end is inserted into the pocket of the curtain.  The curtain is pulled over the tubing until the pocket extends around the entire length of the frame.  The curtain is typically constructed to cover the curtain area within the frame.  The ends of the tube are then connected together and the cover assembly is mounted onto a wall next to the window.
Patent CA-2097547-A1 (CA)
Title: Apparatus and method for forced sharing of parallel mosfet switching losses
Inventor: DONALDSON SCOTT B
IPC: H03K17/08
Filed: 1993-06-02
Abstract: A system for sharing of switching losses of parallel transistors is disclosed. The system includes a plurality of switching transistors connected in parallel for providing a current to a load. A pulse generator provides pulse width modulated pulse cycles in response to the load current each pulse cycle having a pulse signal. An alternate selector is responsive to said pulse cycles, and provides the pulse cycles to the transistors, such that for each pulse cycle a predetermined transistor turns ON substantially prior to the other transistors, dissipating substantially all the turn ON losses, and a predetermined transistor turns OFF substantially later than other transistors, dissipating substantially all the turn OFF losses.
Patent CA-2097750-A1 (CA)
Inventor: ALBERT KEVIN F
IPC: B65H31/06
Filed: 1993-06-04
Abstract: A method for the continuous formation of a stack of folded products standing on edge includes feeding folded products to a stack of folded products standing on edge.  The stack is moved forward with a conveyor belt at a speed being matched to the feeding of the folded products to the stack.  An interruption in the continuous feeding of the folded products to the stack is detected.  A separating device is activated.          The conveyor belt is stopped for the duration of the interruption.          A device for the continuous formation of the stack of folded products includes a device for feeding the folded products in a stream to a stack of folded products standing on edge.  The stack is moved forward on a conveyor belt at a speed being synchronized with the feeding of the folded products to the stack.   At least one separating device contacts the folded products.  A sensor monitors the stream of folded products and supplies output signals.  A logic unit is connected to the sensor for recognizing an interruption in the stream of folded products from the output signals of the sensor.  The logic unit is connected to the conveyor belt and to the at least one separating device for activating the at least one separating device upon the occurrence of an interruption in the stream and for stopping the conveyor belt for the duration of the interruption.
Patent CA-2098763-A1 (CA)
Title: Catalysts for the polymerization of olefins
Inventor: RESCONI LUIGI
IPC: C08F210/18
Filed: 1993-06-18
Abstract: ABSTRACT            A catalyst for the polymerization of olefins comprises the product obtained by contacting:          (A)  a titanium,   zirconium  or  hafnium  mono-   or  bis-cyclopentadienyl compound,  this latter optionally con-taining   a  bridging   group   which   links   the   two cyclopentadienyl compounds;          (B)  an alkyl aluminium wherein at least one alkyl is differ-ent from a straight alkyl; and (C)  water.        The molar ratio aluminium/water is higher than 1:1 and lower than 100:1.           (VA-527-01/ZZ5095+ZZ5096+ZZ5106-EP)
Patent CA-2100536-A1 (CA)
Title: Stable extracts from neem seeds
Inventor: LIDERT ZEV
IPC: B01D11/02
Filed: 1993-07-14
Abstract: Abstract of the Disclosure A neem seed extract containing azadirachtin with improved stability has been developed using a process involving dissolution of the crude neem seed extract in a polar solvent and removal of impurities by precipitation and/or treatment of the extract with an oxidizing agent. The resulting extract, optionally formulated as a wettable powder, is a useful insecticide for the control of foliar pests.
Patent CA-2101113-A1 (CA)
Inventor: MICHAELS MARY BETH
IPC: A61F2/958
Filed: 1993-07-22
Abstract: ABSTRACT   Providing fluid to an internal delivery site of a patient includes moving the fluid from a fluid reservoir through & conduit and through a delivery device at the delivery site while maintaining the fluid at a predetermined pressure. The delivery device may comprise an inflatable balloon with apertures formed in its periphery for directing the fluid into the vessel walls. Pressurized fluid is provided through the apertures of the balloon to the vessel wall. The pressure is automatically controlled to avoid both pressure spikes and unacceptable deflation of the balloon during administration of the fluid. A further feature includes comparing the pressure with the volume infused and in the event that pressure decreases while the volume infused increases beyond certain limits, the delivery of the fluid is stopped. Further features include a timer for limiting the inflation time of the delivery device and a volume detector for controlling the amount of fluid delivered. In one described embodiment, a pneumatic driver system is used to pressurize the fluid.
Patent CA-2101342-A1 (CA)
Title: Discharging system
Inventor: LE ROUX GUY
IPC: C02F3/28
Filed: 1993-07-27
Abstract: ABSTRACT           The discharging system discharges periodically and automatically a predetermined amount of an effluent stored in  a  container.  It  allows  a  periodic  accumulation  of effluent in a container and an automatic discharge thereof with only the use of the hydro-mechanical force of the system. It comprises a tube located in the container having a free end and an end pivotally connected to the outlet of the container. A tripping tank is rigidly attached to the free  end of the tube  and has  a buoyancy, when  empty, suitable for lifting the free end of the tube. As the level of effluent rises in the container, the tripping tank lifts the free end of the tube until a maximum level where the effluent flows over the upper edge of the tripping tank and fills a reservoir formed within the tripping tank itself, thereby making the tripping tank sinkable and discharging the effluent when the tube has fallen at the bottom of the container.  The  system  is  then  automatically  ready  for another cycle.
Patent CA-2102373-A1 (CA)
Title: Paper machine headbox with adjustable lower lip
Inventor: HEINZMANN HELMUT
IPC: D21F1/02
Filed: 1993-11-03
Abstract: PAPER MACHINE HEADBOX WITH ADJUSTABLE LOWER LIP                 Abstract of the Disclosure A headbox for a machine for the manufacture of paper from a web of paper pulp has an upper lip and a lower lip disposed below the upper lip and operatively associated with the upper lip to form an interior region between the lower lip and the upper lip and a discharge region.  The shape of the lower lip, adjacent the discharge region, over which the web of paper pulp flows is adjustable.  The shape may be adjusted by the rotation of a round, rotatable member disposed flush with the lower lip of the headbox or by the deformation of a deformable member provided at the discharge region.
Patent CA-2103457-A1 (CA)
Title: 1,2-dihydropyrido(3,4-b)pyrazines as fungicides
Inventor: TEMPLE CARROLL G JR
IPC: C07D471/04
Filed: 1992-04-17
Abstract: 1,2-dihydropyrido[3,4-b]pyrazines are provided which possess antimitotic activity. The compounds have structure (I) wherein R is a lower alkyl group and OR1 is a member selected from the group consisting of aryl-alkyl ethers having from seven to about 20 carbon atoms, alkyl carbamates having from one to about 12 carbon atoms, the alkyl portion of which may be substituted with a halogen atom, e.g., chlorine, fluorine, bromine or iodine; aryl-alkyl carbamates having from about seven to about 20 carbon atoms, aryl carbamates having from about six to about 20 carbon atoms, aryl-alkyl esters having from about seven to about 20 carbon atoms, aryl esters having from about six to about 20 carbon atoms, alkylthiocarbamates having from about one to about 12 carbon atoms, aryl-alkylthiocarbamates having from about seven to about 20 carbon atoms, and arylthiocarbamates having from about six to about 20 carbon atoms.
Patent CA-2103843-A1 (CA)
Title: Production of stainless steel
Inventor: NIAYESH MOHAMMAD J
IPC: C21B11/00
Filed: 1993-08-11
Abstract: ABSTRACT OF THE DISCLOSURE     A process for the production of steel includes the addition of at least one of the required chromium, manganese,  vanadium,  nickel,  cobalt or molybdenum alloy metals in the form of a finely divided oxide thereof  intimately  mixed  with  a  finely  divided reductant with the mixture of oxide and reductant being in an agglomerated form.
Patent CA-2105218-A1 (CA)
Title: Wide-angle, high-speed, free-space optical communications system
Inventor: JOHNSON BRUCE E
IPC: H04B10/10
Filed: 1993-08-31
Abstract: WIDE-ANGLE, HIGH-SPEED, FREE-SPACE OPTICAL    COMMUNICATIONS SYSTEM                               Abstract of the Disclosure A free-space optical communications system for transmitting data between an aircraft computer system (14) and a ground-based computer system (12). The system includes a pair of corresponding optical transmitters (36) and optical receivers (38) that transmit and receive optical signals transmitted between the two computer systems. Included within each optical transmitter is one or more light-emitting diodes (42) that produce optical signals corresponding to the data to be transmitted. A beam-forming prism (44) is bonded directly to the light-emitting diodes to direct the optical signal uniformly over a target area. The optical receiver includes one or more infrared windows (50) to reduce the amount of ambient light received by the optical receiver. A compound parabolic concentrator (64) collects light transmitted from the optical transmitter and directs the light onto an avalanche photodiode (66), which includes thermal bias compensation. An AC network couples the output signal of the photodiode to a transimpedance amplifier (70). An optional optical shroud (34) surrounds the optical transmitters and receivers to further reduce the amount of ambient light that is received by the optical receivers.
Patent CA-2106810-A1 (CA)
Title: Coated abrasive article having a tear resistant backing
Inventor: HARMON KIMBERLY K
IPC: B24D11/02
Filed: 1993-09-23
Abstract: ABSTRACT OF THE DISCLOSURE      A tear resistant coated abrasive article comprises a  backing which comprises a film having at least three layers situated one on the other in a parallel array. The layers occur essentially randomly in the array and are individually selected from a stiff polyester or copolyester and a ductile sebacic acid based copolyester.  An abrasive layer is on a surface of the backing.