baber/WOPTO huggingface dataset:
Patent CA-2046872-A1 (CA)
Title: Lipoxygenase inhibiting compounds
Inventor: BROOKS DEE W
IPC: C07D405/04
Filed: 1990-01-25
Abstract: Certain N-aryl-, N-heteroaryl-, N-arylalkyl-, N-heteroarylalkyl-, N-arylcyclopropyl- and N-heteroaryl-cyclopropyl-N'-hydroxyurea compounds are inhibitors of lipoxygenase enzyme activity and are thus useful agents in treating disease states such as asthma, arthritis, allergy, psoriasis, inflammatory bowel disease, gout, adult respiratory distress syndrome, endotoxin shock, and other inflammatory conditions in which the products of the arachidonic acid cascade are implicated.
Patent CA-2047470-A1 (CA)
Inventor: OWEN FRANK CHARLES GWYN
IPC: H04W24/00
Filed: 1991-07-19
Abstract: A method of operating a communications system, particularly a FDM-TDD cordless telephony system, in which, in order to expedite handover, a portable secondary station builds up a record of the status and quality of the other FDM channels in the system by every l in n (where n is an integer greater than one) TDD frames monitoring another FDM channel. The value of n is adaptive in that, as the quality of its existing channel deteriorates, the value of n decreases, thereby updating its record more rapidly. At handover, the secondary station is able to choose immediately an acceptable alternative channel, thereby avoiding the time overhead of scanning all the other FDM channels.
Patent CA-2050308-A1 (CA)
Title: Backlit digitizer tablet
Inventor: SIEFER DAVID A
IPC: G01B7/00
Filed: 1990-06-22
Abstract: ABSTRACT OF THE DISCLOSURE          A backlit digitizer table (10) providing uniform illumination of the working surface (24), comprising biaxial fluorescent lamps (20) supplying wide-area light emission under a sandwich top construction including an apertured shield electrode (35), a first clear spacer (40), an electrode array (45), a second clear spacer (50), and a translucent top (55), with optically transparent supports (60) for the top.
Patent CA-2053905-A1 (CA)
Title: Electrolytic finishing method
Inventor: KUWABARA YOUHEI
IPC: B23H3/02
Filed: 1991-02-28
Abstract: ABSTRACT     An electrode is moved in a vertical direction and in a horizontal plane based on an input set value to form a predetermined gap between the electrode and a surface of a work, electrolyte is supplied to an electrolyte tank so as to submerge the electrode and the work.  Pulses having a high current density are applied to the electrode for performing the electrolytic machining.  Clean electrolyte is supplied to the gap for discharging the electrolyte including residual products.  The machining cycle is repeated.
Patent CA-2053935-A1 (CA)
Inventor: BENCK JEAN
IPC: C21B7/16
Filed: 1991-10-22
Abstract: The device for injecting preheated air into a shaft furnace consists of a plurality of tubular elements provided with a refractory lining, which are connected to each other by a ball-and-socket articulation (94, 96) and an expansion joint. The ball-and-socket articulations comprise a convex ball-part formed in the refractory material of the adjacent segment. They comprise a protective shell made of refractory steel which extends around the convex part up to the base of the ball-part. The radius of curvature of each ball-and-socket articulation is in the range of magnitude of half the diameter of the tubular elements.
Patent CA-2055274-A1 (CA)
Inventor: HEIDEMANN ROLF
IPC: H04B10/291
Filed: 1991-11-13
Abstract: In an optical communication system with a fiber-optic amplifier (10) which includes a wavelength-selective fiber-optic coupler (12) for coupling pump light into the amplifying length of fiber (11), according to the invention, an additional optical signal, e.g., a service-channel signal, is transmitted from the location of the fiber-optic amplifier (10) in one direction or the other by being used to modulate the pump light. Since the pump light is not completely absorbed in the amplifying length of fiber (11), a sufficient portion is transferred from the length of fiber (11) into the optical waveguide (15) of the optical communication system and passes down the optical waveguide to the end point (A) of the communica-tion system. There,it is coupled out and passed to an optical receiver (17) from whose output the transmitted additional signal is recovered by demodulation. To pre-vent the modulation of the pump light from modulating the amplification brought about by the amplifying length of fiber (11), the additional signal is modulated onto a carrier wave of sufficiently high frequency, and the re-sulting signal is used to modulate the pump light.
Patent CA-2055438-A1 (CA)
Title: System for discharging bottom ash from steam producing boilers
Inventor: MAGALDI MARIO
IPC: F23J1/02
Filed: 1991-03-04
Abstract: A system for discharging ash comprises a hopper (40) provided with a system of hydraulically activated valves (44) having the function of separating the hopper environment from the extractor environment, thereby creating an accumulation store inside the hopper (40) which allows brief shutdowns for any required maintenance in the downstream extractor (20) and the plant, and which prevents the direct falling of large lumps of agglomerated ash on to the belt (1) and also, in the case of a multifuel boiler, avoids radiation to the extraction belt (1) when gas or oil is used as fuel.      Downstream of the area of ash discharge from the extractor (20) a system of crushing, cooling, transport and storage of the ash is also provided.
Patent CA-2058730-A1 (CA)
Title: Platinum complexes and use thereof
Inventor: BROWN SCOTT S D
IPC: B01J31/22
Filed: 1992-01-03
Abstract: Method for preparing a platinum-organosiloxane complex which comprises reacting a platinous halide with an organo-siloxane having from 2 to 4 silicon-bonded organic groups containing terminal olefinic unsaturation, the reaction being carried out in the presence of a polar organic liquid, for example dimethylformamide or butan-2-one, which is at least a partial solvent for the platinous halide.     The complexes are useful as catalysts for hydrosilylation reactions.
Patent CA-2060889-A1 (CA)
Title: Tungsten carbide-containing hard alloy that may be processed by melting
Inventor: SCRUGGS DAVID M
IPC: C22C32/00
Filed: 1991-04-23
Abstract: A matrix-bonded carbide-containing composition material of high hardness is provided herein. Such composite material comprises a matrix-bonded carbide-containing composite material, It includes a matrix having a composition of from about 15 to about 45 percent by weight chromium, from 0 to about 3 percent by weight silicon, from about 2 to about 6 percent by weight boron, from about 3 to about 11 percent by weight titanium less than about 2 percent by weight of at least one element, namely, manganese, cobalt, nickel, molybdenum, or carbon, and the balance iron. It also includes a dispersion of tungsten carbide in the matrix, the tungsten carbide being present in an amount of from about 15 to about 60 percent by weight of the total material, and the matrix being present in a corresponding amount of from about 85 to about 40 percent by weight of the total material. During melting, the tungsten carbide particle size is reduced by interaction with the liquid phase. The melting can be accomplished by a conventional melt casting procedure, or by welding or by any other technique that produces a liquid matrix phase. The fine tungsten carbide particles which are produced during melting exhibit little if any settling, so that the final solidified product is macroscopically homogeneous.
Patent CA-2062333-A1 (CA)
Title: Method of making siloxane compositions
Inventor: DE LA CROI HABIMANA JEAN
IPC: C08J3/09
Filed: 1992-03-05
Abstract: A method of making a dispersion of a high viscosity siloxane in a volatile, especially cyclic siloxane, comprises first dispersing organopolysiloxanes having at least 2 Si-OR groups, wherein R is H or alkyl in a volatile siloxane and adding a catalyst which is either a phosphonitrile halide having the general formula [X(PX2=N)n PX3]+[MX(v-y+1)R t]-, or a hetero-geneous catalyst selected from Li, Mg, Ca, Sr or Ba hydroxide, Na or K borate or phosphate, Rb or Cs carbonate or carboxylates of Rb or Cs wherein M is an element having an electronegativity of from 1.0 to 2.0, R is alkyl, X is halide, n is 1 to 6, v is the valence of M and t is from 0 to (v-1).
Patent CA-2064437-A1 (CA)
Title: Grain refining alloy and a method for grain refining of aluminium and aluminium alloys
Inventor: ARNBERG LARS
IPC: B22D1/00
Filed: 1992-03-30
Abstract: The present invention relates to a method for grain refining of aluminium and aluminium alloys wherein a siliconboron alloy containing between 0.01 to 4.0 %  by weight of boron is added to molten aluminium or aluminium alloy in such an amount that the resulting melt of aluminium or aluminium alloy contains at least 50 ppm boron. The invention further relates to a grain refining alloy for aluminium and aluminium alloys which grain refining alloy is a siliconboron alloy containing between 0.01 and 4.0 % by weight of boron.
Patent CA-2065280-A1 (CA)
Title: Mechanism for nesting an optical fiber in an optical coupler and providing positive stop opening and closing positions for the coupler
Inventor: SAIIA LOUIS
IPC: G02B6/36
Filed: 1990-08-17
Abstract: An optical coupler for coupling light between an optical fiber core and an electrooptic transducer (62) includes a pin (71) and channel (73) arrangement associated with a mechanism for opening and closing the coupler. At one position (75) the pin engages an end of the channel whereat the coupler is open and safe insertion or removal of the fiber from the coupler is possible. At a second position (77), the pin engages another end of the channel and an optical fiber previously inserted into the coupler when in its open position is securely locked in the optical coupler. The positions (75, 77) are so arranged such that subsequent to loading the fiber in the groove (65) with the coupler open, the rotational member (81) is turned until the pin (71) engages the position (75).  Doing so causes the slideable member (86) to be urged in its closed position by the cam (88) being fully engaged against the spring (74) so as to deflect the spring and resiliently urge the slideable member closed such that the optical fiber is securely held within the groove (65) and accurately positioned such that optimum light coupling between the transducer (62) and a core of the optical fiber results. Furthermore, when the rotational member is rotated 180· from the first position (75), the cam disengages the spring and also urges the slideable member away from the groove (65). When the pin (71) engages the second position (77), the cam (88) is completely disengaged from the spring (74) and the slideable member (86) is in its open position relative to the coupler body (3) so that the fiber can safely be removed from the coupler and holder.
Patent CA-2067093-A1 (CA)
Title: Driver training system
Inventor: MOTT STEPHANIE J
IPC: G09B9/05
Filed: 1991-08-01
Abstract: A driver training system (100) for a user (102) of a simulated vehicle. The system includes input devices (104, 106, 108, 110, 112) for controlling the simulated vehicle, a video display (122) having three-dimensional graphics, modeling software (116) for determining position information based on the input devices, and recursive training software (120) to display a previous route through an environment simultaneously with a present route (134) through the environment. The user then incrementally and rec-ursively maximizes parameters associated with vehicle operation skill. The driver training system (100) may be embodied as an arcade game.
Patent CA-2068603-A1 (CA)
Title: Removal of trace quantities of molybdenum
Inventor: MEYER ROBERT A
IPC: C07D301/32
Filed: 1992-05-13
Abstract: REMOVAL OF TRACE QUANTITIES OF MOLYBDENUM          (Docket No. 81,002-F) ABSTRACT OF THE CLOSURE     An epoxidation reaction product formed by the molyb-denum catalyzed reaction of propylene with tertiary butyl hydroperoxide to provide propylene oxide and tertiary butyl alcohol is separated by distillation into a propylene frac-tion, a propylene oxide fraction, a tertiary butyl alcohol fraction and a heavy liquid distillation fraction composed primarily of tertiary butyl hydroperoxide, tertiary butyl alcohol, dissolved molybdenum catalyst, and impurities including lower aliphatic C1-C4 carboxylic acids, and the dissolved molybdednum content of the heavy distillation fraction is adjusted to about 300 to 500 ppm of dissolved molybdenum, if necessary, by treatment with a precipitating agent and contacted with a solid adsorbent consisting essen-tially of a synthetic, porous, high surface area amorphous magnesium silicate.
Patent CA-2068626-A1 (CA)
Title: Facsimile machine having received-image display function
Inventor: SHIMIZU NOBUKAZU
IPC: H04N1/387
Filed: 1992-05-13
Abstract: A facsimile machine in which all of received image data are once stored in a memory and a necessary part of the stored image data is visually displayed on a display unit to confirm the necessity or non-necessity of its print-out and to selectively print out only the necessary part of the received image data.  In the facsimile machine, in particular, the image to be visually displayed on the display unit can be reversed and rotated so that, even when the image is displayed as upside down, the image can be changed to its right display angle, whereby a user can conveniently confirm the image.
Patent CA-2072628-A1 (CA)
Title: Procede d'analyse spectroscopique ponctuelle de la lumiere diffractee ou absorbee par une substance placee dans un champ proche
Inventor: DE FORNEL FREDERIQUE
IPC: G01N21/55
Filed: 1990-10-31
Abstract: 2072628 9106884 PCTABS00105 La présente invention concerne un procédé d'analyse spectroscopique ponctuelle de la lumière diffractée ou absorbée par une substance transparente et/ou réfléchissante placée dans un champ proche généré en transmission ou en réflexion par un premier rayonnement électromagnétique caractérisé en ce qu'on effectue une analyse spectroscopique ponctuelle dudit champ proche et/ou d'un second rayonnement électromagnétique, orienté simultanément avec ledit premier rayonnement sur ladite substance, ladite analyse concernant la fraction dudit champ proche ou dudit second rayonnement électromagnétique ayant interagi avec ladite substance. La présente invention est plus particulièrement destinée à l'étude spectroscopique à haute résolution de substances transparentes et/ou réfléchissantes dont on relève simultanément le profil optique, ou le profil géométrique, au moyen d'un microscope optique à balayage en champ proche, tel qu'un microscope par transmission en champ évanescent frustré, ou un microscope par réflexion en champ proche guidé.
Patent CA-2073646-A1 (CA)
Title: Cap provided with removable flip up and down glasses
Inventor: SOLO ALAN J
IPC: A42B1/06
Filed: 1992-07-10
Abstract: ABSTRACT OF THE DISCLOSURE            A cap provided with removable flip up and down glasses including a mounting member for positioning the flip up and down glasses on an outwardly extending visor of the cap.  Attach-ment members pivotally secure a pair of lenses of the flip up and down glasses to the mounting member so that the glasses can be flipped up to a first position adjacent to the visor and also flipped down to a second position so that the lenses are disposed at a proper eye level for a person wearing the cap.          Preferably, the lenses are removable from the attachment members.          Separable fasteners are disposed between the visor and the mounting member for removably securing the visor and the mounting member together.  One portion of the fasteners is secured on an underside of the visor and another mating portion of the fasteners is secured to an upper surface of the mounting member.  Preferably, the mounting member is tapered so that the front edge is thicker than a rear edge thereof, where the mounting member can be fabricated from a rigid or flexible plastic material.  In a modified form, a transversely disposed hinge is provided between adjacent parts of the mounting member to permit the parts to pivot relative to each other when opposite sides of the visor are folded towards each other.
Patent CA-2076155-A1 (CA)
Title: Reaction injection molding polyurea resin composition
Inventor: ISHIBASHI HIDEO
IPC: C08L75/00
Filed: 1992-08-14
Abstract: ABSTRACT OF THE DISCLOSURE       A polyurea resin molding composition for RIM use comprises (a) polyoxyalkylenpolyamine, (b) an aromatic polyamine and/or a xylylenediamine and ( c ) a polyisocyanate. The component (a) contains dispersed therein a polymer prepared by the in situ polymerization of at least two olefinically unsaturated monomers in the presence of a radical polymerization initiator.
Patent CA-2076219-A1 (CA)
Title: Discharge electrode stabilizer
Inventor: ROMASZ STANLEY
IPC: B03C3/04
Filed: 1992-08-14
Abstract: An electrostatic precipitator for removing particles from a gas stream includes electrically chargeable electrode elements suspended from the housing of the precipitator and grounded collector plates fixedly supported by the housing in positions between adjacent pairs of electrode elements to leave a clearance therebetween.   An electrode stabilizer extends through an opening in one of the collector plates without touching the collector plates to connect a pair adjacent electrode elements.   The stabilizer and pair of electrode elements are configured to form a rigid structure substantially eliminating sway between the electrodes and collector plates.
Patent CA-2076344-A1 (CA)
Inventor: KOEPPEN DETLEF
IPC: B24D9/00
Filed: 1991-10-19
Abstract: The invention relates to a rotary tool consisting of a drive hub (N) and an interchangeable tool sleeve (H), whereby the tool sleeve (H) can be connected solidly in rotation with the drive hub (N) and has projecting engagement means on its outer circumferential surface for machining equipment. Here, the drive hub (N) consists of a drive flange (1) and a securing flange (2), whereby on the drive flange (1) axially on the outside is coaxially fitted a central motor connection (3) and at least one of the flanges (1, 2) has at least one axial projection (A) axially on the inside.  For each axial projection (A) there is an axially opposite second axial projection (A) or recess or aperture on the other flange (1 or 2) suitably arranged and at least one axial projection (A) can be arranged radially eccentrically. Here, at least one axial projection (A) forms an axial conveyor arm (4, 5). At least one axial projection (A) engages between the two flanges (1, 2) in a part of the opposite flange (1, 2) in such a way that the flange (1, 2) cannot rotate in relation to their shaped spindle. Here it is an essential part of the invention that the securing flange (2) engages closely with the driving flange (1) via at least one snap connector (9, 10) and can be released by release means.
Patent CA-2077930-A1 (CA)
Title: Installation for carrying out several successive chemical reactions in the same container
Inventor: RINGOT GILBERT
IPC: G21C19/42
Filed: 1992-09-10
Abstract: DESCRIPTIVE ABSTRACT           In order to successively carry out several chemical reactions in the same container (10), e.g. dosing uranium in the presence of plutonium and fission products used in the Davies and Gray method, said container is placed in a working station above which issue tubes (16, 20) for supplying the products necessary for the reactions.  When a product has to be introduced, a computer controls the descent of the corresponding tube.  When the product may react inopportunely if it drops into the container (10) outside the time intended for this purpose, the lower end of the product supply tube (16) is automatically laterally displaced with respect to the container, when said tube is in the top position, e.g. by the cooperation of a pawl (1021 with a slot (100) forming a cam.            (Fig. 3)
Patent CA-2084055-A1 (CA)
Title: Method and apparatus for forming and everting a work product
Inventor: PRICE ELVIN C
IPC: D05B65/00
Filed: 1992-03-13
Abstract: METHOD AND APPARATUS FOR FORMING    AND EVERTING A WORK PRODUCT            ABSTRACT       An overlock stitch is formed by sewing machine (11 Fig. 1) into a work product (34) and the work product is accelerated away from the sewing machine so as to stretch the thread chain (Fig. 5).  The stretched thread chain is cut by cutter (40), and the leading thread chain (43) recoils back toward the hollow chaining tongue (21) and is drawn into the chaining tongue by the stream of air (26) created by vacuum canister (52 Fig. 6).  The next work product draws the leading thread chain out of the hollow chaining tongue and the sewing machine captures the leading thread chain in the stitch. Transfer conveyor (15 Fig. 1) moves the work product (34) into alignment with everter tube assembly (106), grippers (109 and 110) grip and open one end of the work product (Figs. 9-14), and air drawn through the everter tube assembly everts the work product.  The gripper tube assembly opens along its lower portion (Fig. 16) and drops the work product.
Patent CA-2084300-A1 (CA)
Title: Fiber optic power splitter
Inventor: STOWE DAVID W
IPC: G02B6/28
Filed: 1991-06-03
Abstract: Fiber optic splitters having a central fiber (18, 21) and a selectable number of surrounding fibers (10, 20) with mutual con-tact among the surrounding fibers and central fiber, formed preferably of identical diameter starting fibers. According to a for-mula, between three and five surrounding fibers, the central fiber (18, 21) has a reduced diameter, while for seven or more sur-rounding fibers, the diameters of the surrounding fibers are reduced.  Splitters with one input and four, eight, twelve, or sixteen equal outputs, having a flattened wavelength response are provided. Means are provided to reduce detrimental phase mismatch at the desired coupling ratio as by substantially matching the propagation constants of the central and surrounding fibers in the fin-ished coupler. Provisions for sufficiently matching the propagation constants include making the fused splitter region short; start-ing with fibers having differing propagation constants selected so the difference is diminished during fusing; fusing the fibers to-gether to the extent that there are substantially no interstitial voids in the coallesced fiber mass; and surrounding the surrounding fibers (10, 20) with a transparent substance having the effect of cladding.  For the latter purpose, a tube (11) or transparent optical rods assembled about the surrounding optical fibers are fused therewith, or the transparent substance is a moldable substance ap-plied after the fused region of the coupler has been formed.
Patent CA-2084696-A1 (CA)
Inventor: RENAUDIN YVES
IPC: E01H8/00
Filed: 1992-12-07
Abstract: The present invention relates to a vacuum cleaner train which comprises a blowing device mounted trans-versely and two suction devices disposed downstream and upstream of the blowing device, as well as means for transversely adapting the blowing and suction flows, adapted to effect a non-homogeneous distribution of said flows transversely with respect to the direction of the train.     According to one version, the suction and blowing devices comprise pipes partitioned into three compart-ments, three supple conduits for connection to the corresponding fans and means for positioning the con-duits on one or the other compartment.     According to another version, these devices com-prise nozzles equipped with obturation means and means for controlling the obturation means in synchronization. Moreover, the endpiece of the nozzles may be orientable laterally for cleaning overhanging platforms.
Patent CA-2086053-A1 (CA)
Title: Apparatus with inversion linkage mechanism
Inventor: CRUSE DONALD I
IPC: B06B1/10
Filed: 1992-12-22
Abstract: ABSTRACT OF THE DISCLOSURE    The apparatus  for  producing  a  combination  of  rotating, tumbling and shaking movements of material  in a  container has a closed and constrained invertible kinematic  link-work  of  which at least  one link  serves as  receptacle for  the container; and means for  driving the link-work, the driving means being capable of imparting thrusting power, rather than rotating power.