baber/WOPTO huggingface dataset:
Patent CA-2024382-A1 (CA)
IPC: G06T7/00
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE            A method and apparatus for finding the best or near best binary classification of a set of observed events, according to a predictor feature X so as to minimize the uncertainty in the value of a category feature Y.  Each feature has three or more possible values.  First, the predictor feature value and the category feature value of each event is measured.  From the measured predictor feature values, the joint probabilities of each category feature value and each predictor feature value are estimated.  The events are then split, arbitrarily, into two sets of predictor feature values.  From the estimated joint probabilities, the conditional probability of an event falling into one set of predictor feature values is calculated for each category feature value.  A number of pairs of sets of category feature values are then defined where each set SYj contains only those category feature values having the j lowest values of the conditional probability.  From among these pairs of sets, an optimum pair is found having the lowest uncertainty in the value of the predictor feature.            From the optimum sets of category feature values, the conditional probability that an event falls within one set of category feature values; is calculated for each predictor feature value.  A number of pairs of sets of predictor feature values are defined where each set SXi(t + 1) contains only those predictor feature values having the i lowest values of the conditional probability.  From among the sets SXi a pair of sets is found having the lowest uncertainty in the value of the category feature.  An event is then classified according to whether its predictor feature value is a member of the set of optimal predictor feature values.
Patent CA-2025727-A1 (CA)
Inventor: ANDERSON HARRY S II
IPC: B32B27/32
Filed: 1990-09-19
Abstract: 0992p Anderson Case 4 Multilayer Oriented Film Containing Polypropylene and Co-Polyester Abstract of the Disclosure An oriented film laminate, suitable for use in the food packaging industry, having layers of a homopolymer of propyl-ene or a copolymer of propylene, a co-polyester layer, and an adhesive layer of a polar-modified polyolefin located between and bonded to the polypropylene and co-polyester layers, and a method for making it are disclosed.
Patent CA-2027962-A1 (CA)
Inventor: FERREIRA DO ESPIRITO SANTO ANT
IPC: B60R1/06
Filed: 1990-10-18
Abstract: A B S T R A C T           Patent of utility model "DISPOSITION IN SUPPORT FOR EXTERNAL REARVIEW MIRROR" formed by a rod in "L" (1)-(2), with a support in its extremity (3) that can be assembled in the vehicle's waggon and incorporates  a mechanism (4) of position regulation and stabilization of the rod, includes a pin (7)-(8)-(9), assembled in a part of support (5) of the rod, this pin has an intermediartery bush (8) which is in the interior of the base in form of a glove (6) of the support (3) assembled in the waggon and said pin crosses and gets anchored in a set of pieces inside said -base; to know; second bush (10), spring (11) and the third anchorage bush (12), said first (8) and second (10) bushes have confronting faces provided with grooves (13) and (14) intercompling.
Patent CA-2028161-A1 (CA)
Title: Shearhead reinforcement
Inventor: CHANA PLAVINDER
IPC: E04B5/00
Filed: 1990-10-22
Abstract: ABSTRACT       A shearhead assembly supporting a laterally extending concrete slab on a column, has a shearhead comprising two pairs of beams with juxtaposed vertical surfaces which define therebetween an area substantially corresponding to the cross-section of the column.  The juxtaposed vertical surfaces thus enclose the bulk of the column cross-section.  During installation, the shearhead is located at the top of a partly constructed column, and concrete is cast around the shearhead and between the pairs of beams including the portion between the juxtaposed vertical surfaces thereof, to form the laterally extending slab and simultaneously extend the column therethrough.  There is no need for any element of the shearhead itself to traverse the cross-section of the column between the juxtaposed vertical surfaces.
Patent CA-2028441-A1 (CA)
Title: Apparatus and method for curtaian coating of paint or varnish
Inventor: EDLERT PER
IPC: B05C5/00
Filed: 1990-10-24
Abstract: P21014.41 BR/CB     Abstract An apparatus and a method for curtain coating of paint or varnish on objects having profiled application surfaces, such as profiled door leaves, comprising a curtain head provided with a paint/varnish inlet and return outlet. The curtain head hereby exhibits two curtain lips positioned opposite each other, as well as an upper and a lower flow-equalization rail. The curtain head is further positioned at a predetermined height over a collector channel. A return line connects the return outlet with the collector channel and a conveyor is arranged to feed the profiled object inbetween the curtain head and the collector channel when applying the paint/varnish. The invention relates specifically to that the curtain height between  the  lowermost  edge  of the  curtain  lips  and  the application surface of the profiled object is at least 250 mm, and that the distance between the upper and the lower flow-equalization  rail  decreases  in  a  direction  from the paint/varnish inlet to the return outlet.            (Fig. 1)
Patent CA-2029689-A1 (CA)
Title: Purification of chlor-alkali membrane cell brine
Inventor: RUTHERFORD JOHN
IPC: C01D3/14
Filed: 1990-11-09
Abstract: This  invention  relates  to  methods  and systems for purifying brine for electrolysis in chloralkali  cells,  especially membrane cells by reducing the sulfate ion concentration, while at the same time minimizing the concentration of other undesirable ions such as calcium and chlorate.  The methods and systems employed are unique combinations of refrigeration and crystallization, and brine recirculation techniques in the systems for electrolyzing brine.
Patent CA-2029713-A1 (CA)
Title: Ordered polyether ketone sulfones
Inventor: PFAENDNER RUDOLF
IPC: C08G75/18
Filed: 1990-11-09
Abstract: Ordered polyether ketone sulfones Abstract of the Disclosure Ordered polyether ketone sulfones which contain, based on the total amount of structural units present in the polymer, 40-100 mol% of a recurring structural unit of formula I                                                  (I) and 0-60 mol% of a recurring structural unit of formula II                                                    (II) wherein Ar1 is, for example, a 4,4'-benzophenone radial and Ar2 is, for example, a 1,4-phenylene radical, are suitable for the production of moulded articles having good mechanical and thermal properties.
Patent CA-2030568-A1 (CA)
Title: Method for the regenerative treatment of mainly clay-bound foundry old sand
Inventor: SATMER FRANZ
IPC: B22C5/10
Filed: 1990-11-22
Abstract: A method for regenerating foundry old sand is proposed, by which method combined impact and shearing stress of the sand grains occurs with simultaneous dust removal. The dust removed by suction contains nonburned bentonite and carbon parts which can be re-used in the same way as the regenerated material or core sand. Environmental pollution and quantities for dumping are drastically reduced.
Patent CA-2031867-A1 (CA)
Inventor: INOUE NOBUHIRO
IPC: B41J2/345
Filed: 1990-12-10
Abstract: A substantially rectangular insulating substrate is prepared.  Next, pairs of lead electrodes are formed on the substrate such that they extend in parallel with regular intervals and slantwise with reference to the longitudinal direction of the substrate.  The electrodes are formed by use of a lithography technology, including deposition and etching.  Then, a resistor material is pasted on the substrate and the electrodes by screen printing, to thereby form a strip-shaped resistor extending in the longitudinal direction.  Finally, a protective layer is formed on the resultant structure, so as to prevent the resistor and the electrodes from being oxidized or worn away, thereby completing the fab-rication of a thermal head.  In this thermal head, each of those portions of the strip-shaped resistor which are defined by a pair of adjacent lead electrodes serves as a parallelogrammatic heating resistor used for recording one pixel.
Patent CA-2034832-A1 (CA)
Title: Solid laser device
Inventor: TANIU YOSHITO
IPC: H01S3/04
Filed: 1991-01-23
Abstract: ABSTRACT OF THE DISCLOSURE             A solid laser device comprises a cylindrical beam collector in which a solid laser medium and a beam source for excitation of the laser medium are held.  A wavelength selective reflection film for reflecting beams with wavelengths effective for excitation of the laser medium and transmitting beams with other wavelengths is disposed on at least one of outer and inner surfaces of the beam collector.  A beam shield is disposed outside of the beam collector and reflection film to absorb and cool the beams transmitted outside of the beam collector and reflection film.  A wavelength conversion filter may be disposed outside of the laser medium in the beam collector to convert beams with wavelengths harmful to the excitation into beams with wavelengths effective for the excitation.  Thus, thermal load on the laser medium and the excitation beam source itself can be decreased; as a consequence, high output of the solid laser device can be attained; single transverse mode can be attained; and long life-time of the excitation beam source can be ensured.  Furthermore, when the wavelength conversion filter is disposed outside of the laser medium in the beam collector the beams with wavelengths effective for excitation of the laser medium are reflected by the reflection film for collection and the beams with wavelengths harmful to the excitation are converted into beams with wavelengths effective for the excitation, whereby the excitation efficiency is further enhanced.
Patent CA-2036074-A1 (CA)
Inventor: NISHIKAWA NOBUYOSHI
IPC: C09J5/00
Filed: 1991-02-11
Abstract: The adhesive to be used for the proposed method does not include any solvent and is safe for hygiene and effective for fire prevention. The adhesive is of a contact type, which permits adherends to be easily fastened without being temporarily pressed, and is applicable to any type of adherends contrary to aqueous adhesives, and is cured under room temperature in a relatively short period of time even if the adherends are not of a moisture-permeating type.
Patent CA-2037233-A1 (CA)
Inventor: SCHOENBECK MELVIN A
IPC: C08L23/16
Filed: 1991-02-27
Abstract: TITLE Curable Laminated Article of EPDM Elastomer and Ethylene-Containing Polymer ABSTRACT OF THE DISCLOSURE A curable laminated article, useful for roofing application, comprising at least two layers, each layer comprising A blend of (a) 50-80% by weight of an ethylene/propylene/nonconjugated diene elastomer and (b) 20-50% by weight of an ethylene-containing polymer selected from the group consisting of polyethylene, an ethylene alpha-monoolefin copolymer wherein the monoolefin contains from 3-12 carbon atoms and is present in amounts of 2-8% by weight, and as ethylene/vinyl acetate copolymer having a vinyl acetate content up to about 10% by weight, and wherein each alternate layer contains either elemental sulfur as the crosslinking agent for the elastomer or a cure accelerator so that the elastomer in the laminated article subsequently cures when elemental sulfur and the accelerator in each layer migrate to an adjacent layer when the laminate is exposed to elevated temperatures.
Patent CA-2038778-A1 (CA)
Inventor: FERNSLER RONALD E
IPC: H04N3/22
Filed: 1991-03-21
Abstract: A first phase locked loop (12) generates a first timing signal (on 17) at a first horizontal synchronizing frequency (1fH) corresponding to a horizontal synchronizing component (on 13) in a video signal (on 11). A converter circuit (56) derives from the first timing signal (on 17) a second timing signal (on 61), having a second frequency (2fH) at a multiple of the first frequency and subject to a variation in frequency at a rate corresponding to the first frequency. A second phase locked loop (62) receives the second timing signal (on 61), which can be asymmetric within the period of the first timing signal (on 17), and a feedback signal (on 73) in accordance with the second frequency, and includes a controllable oscillator (66) for generating a smooth horizontal synchronizing signal (on 67) at the second frequency. The second phase locked loop has a characteristic loop response, determined by a low pass filter (63), preventing the voltage controlled oscillator (66) from changing frequency as fast as the rate of variation of the second timing signal (on 61). This drives the error signal for the controllable oscillator (66) toward an average value, resulting in a corrected, symmetric synchronizing signal at the second frequency. A horizontal output deflection stage (68) may be coupled to the second phase locked loop (62) for synchronized horizontal scanning in accordance with the second frequency. No additional signal processing circuitry is needed to correct the symmetry of the first timing signal generated by the first phase locked loop or the symmetry of the second timing signal derived by the converter. <IMAGE>
Patent CA-2042969-A1 (CA)
Title: Process for the production of moulded articles
Inventor: VON BONIN WULF
IPC: C04B35/52
Filed: 1991-05-21
Abstract: Process for the production of moulded articles Abstract Moulded  articles  are  produced by  heating  expandable graphite, in which the expandable graphite is first pre-expanded at 140 to 450°C until a bulk density of 30 to 500 g/l has been reached, at least 50 % by volume of a mould is then filled with the graphite thus pre-expanded, and the expansion of the graphite is then completed in the mould by heating to temperatures in the range from 300 to 700°.     Le A 27 742-Foreign countries
Patent CA-2046002-A1 (CA)
Inventor: ZAHLER ROBERT
IPC: C07D473/00
Filed: 1991-06-28
Abstract: Antiviral activity is exhibited by compounds having the formula   and its pharmaceutically acceptable salts.
Patent CA-2046289-A1 (CA)
IPC: G06F7/58
Filed: 1990-12-18
Abstract: In a data processing system using portable objects (1) such as cards incorporating memory chips (11, 12, 13, 14, 15) and a processing circuit (10), where a first memory zone (11) is electrically erasable and writable at the request of the processing circuits in the object, random numbers are generated taking into account a first parameter taken from the first zone (11) and at least one second parameter written in a second, non-volatile zone (12) of the object, the content of this second zone being modified each time the first zone is erased such that the combination of parameters is never identical following the various erase operations on the first zone.
Patent CA-2047577-A1 (CA)
IPC: B65F5/00
Filed: 1991-07-23
Abstract: An automatic trash disposal system (20) employing a trash discharge station (56) located internally of a building structure (22) and having a plurality of dedicated trash disposal ports (60P, 60M, 60G, 60NR) for receipt of different categories of recyclable trash items and/or non-recyclable trash items: a remotely located trash housing (21) exterior of the building structure (22) and housing a plurality of dedicated removable trash receptacles (36, 38, 39, 40); conduits (64P, 64M, 64G, 64NR) coupling the trash disposal ports (60P, 60M, 60G, 60NR) with respective different ones of the remotely located dedicated trash receptacles (36, 38, 39, 40); and, a blower/motor combination (68/79) for drawing a vacuum in the enclosed remotely located trash housing (21) and the conduits (64P, 64M, 64G, 64NR) for vacuum transferal of items of trash inserted into a particular one of the interior trash disposal ports (60P, 60M, 60G, 60NR) to a particular one of the remotely located dedicated trash receptacles (36, 38, 39, 40).  The automatic trash disposal system (20) may be incorporated with and as part of a central vacuum system; and/or, it may be used to remove rodents (90) from within the building structure (22).
Patent CA-2050024-A1 (CA)
Title: Improved aqueous emulsion dispersion adhesives based on a polyol and a hindered isocyanate compound
Inventor: RYAN CHRISTOPHER M
IPC: C08L63/00
Filed: 1991-08-27
Abstract: Improved polymeric aqueous adhesive dispersions can be made based on a reaction between a nonionic or anionic functional polyol and an aliphatic hindered isocyanate compound.  The aqueous adhesive dispersion substantially free of reactive NCO functionality can be used in the preparation of laminates formed by adhering one sheet like substrate to another.  The formulations disclosed process easily, have low prepolymer viscosity, bond laminate structures and have a commercially useful pot life.
Patent CA-2050241-A1 (CA)
Title: Heterocyclic-Amine Aldehyde Reaction Products Useful for the Suppression of Hydrogen Sulfide
Inventor: WEERS JERRY J
IPC: C10L1/232
Filed: 1991-08-29
Abstract: The reaction product of a heterocyclic aldehyde (such as furfural) and a specified amine (such as diethylene triamine) is effective as an H2S suppressant for water and hydrocarbons.
Patent CA-2050484-A1 (CA)
Title: Sialic acid-containing glycolipid derivatives
Inventor: NAKABAYASHI SATORU
IPC: C07H15/04
Filed: 1991-02-25
Abstract: ABSTRACT     Sialic acid- containing glycolipid derivatives represented by the following general formula, their production method, and the particulate carriers that contain as a constituent the sialic acid-containing glycolipid derivative(s).       wherein ? represents the .alpha. - or the .beta.- linkage, R1, a hydrogen atom or an acetyl group, R2, a hydrogen atom, a lower alkyl group with 1 - 4 carbon atoms, an alkaline metal ion, or such, X, an oxygen or sulfur atom or a residue represented by the following formula (II) or (III), -O(CH2)mNHCO-                (II) where m represents an integer from 1 to 10.     -O(CH2)mCONH- (III) Y, the formula (IV).     (IV)   wherein A represents a linear or branched chain acylamino group with 10 - 40 carbon atoms, or such B, a hydrogen atom, a carboxyl group or such, or the formula (V), and   (V) n, an integer of 0 to 3.
Patent CA-2053752-A1 (CA)
Inventor: BURDORFF MARK A
IPC: H01H35/18
Filed: 1991-10-18
Abstract: A dishwasher is provided with an improved apparatus for protecting the tub from being overfilled in the form of a float having a float stem that is automatically captured upon insertion through a passage in the tub bottom wall such that the float will be restrained against disengagement from the tub bottom wall.          The float is vertically movable to operate a control switch for regulating the level of water within the tub.  Preferably a retaining ring is carried on a stem of the float which is automatically biased through a varying diameter keyway and is subsequently moved to a captured position below the member having the keyway.
Patent CA-2054623-A1 (CA)
Title: Kneader and it's rotors
Inventor: MORIYAMA MASAO
IPC: B29B7/20
Filed: 1991-10-31
Abstract: Abstract of the Disclosure A biaxial two-rotor type kneader having two parallel rotor shafts, each provided with one large blade and two small blades so that the one large blade and the two small brades on one of the two parallel rotor shafts are opposed respectively to the two small blades and the one large blade on the other one of the two parallel rotor shafts.   Each of the three blades (one large and two small blades) carried by each of the two parallel rotor shafts is provided with in its surface layer with a path for such thermal medium as cooling water, while the pahth has a connection with a path provided withing each of the rotor shafts.
Patent CA-2056083-A1 (CA)
Inventor: PERRON MARC
IPC: B63B7/04
Filed: 1991-11-25
Abstract: PR?CIS DE DIVULGATION         Embarcation facilement et rapidement démontable, dont la coque est divisée sur le sens de la longueur en modules  capable  de     s'empiler  de  façon  à  être transportable dans un sac à dos pour ainsi permettre un transport  facile  de  l'embarcation  dans  des  régions difficiles d'accès. Chaque module est conçu de façon à s'emboîter avec le ou les modulas adjacents,  afin de former  la  coque.  Ces  modules  sont  alors  solidement maintenus  ensemble  grâce  à  un  système  de  serrage. L'étanchéité est assurée par une toile imperméable placée à l'extérieur de la coque.
Patent CA-2056567-A1 (CA)
Title: High energy ignition generator in particular for a gas turbine
Inventor: BALLAND PATRICK
IPC: F02P15/00
Filed: 1991-11-28
Abstract: The generator comprises a source of energy provided with a transformer (104) whose secondary winding is connected  to a first circuit comprising a capacitor  (106),  an  inductor (107) and an ignition spark plug (108) connected in  series, and means (109) for shorting the  first  circuit  so  as to produce sparks between the  electrodes  of  the  spark  plug (108), comprising at least a semi-conductor switching  means controlled by means (110) for comparing the voltage  at  the terminals of the capacitor (106) with  a  reference  voltage and means for  controlling  the  charge  of  the  capacitor, interposed between  the  source  of  energy  and  the  first circuit, is characterized in that the comparing means  (110) are connected to the terminals of a  capacitor  (111)  of  a second  circuit  connected  to  the  terminals  of   another secondary winding  (114)  of  the  transformer  (104),  this second circuit being equivalent to the first circuit so that the voltage at the terminals of the capacitor (111)  of  the second circuit is the image of the voltage at the  terminals of the capacitor (106) of the first circuit.
Patent CA-2058663-A1 (CA)
Inventor: MARSY JEAN-MARIE
IPC: H04L12/423
Filed: 1991-12-31
Abstract: Installation, embarquée sur un satellite, de collectage des données établies et mémorisées par des instruments de prise d'information. Le collectage de ces données s'effectue en série, selon une boucle partant et revenant au multiplexeur, qui comporte en conséquence un générateur de trames aptes à recevoir ces données.
Patent CA-2061481-A1 (CA)
Title: Post-applied zipper base with grip strip
Inventor: WEEKS RONALD J
IPC: B65D65/28
Filed: 1992-02-19
Abstract: A method and apparatus for producing an improved easy-open container wherein a continuous base  layer is  integrally extruded with means for gripping thereon and applied to existing film to seal perforated lines of tearing therein.  Interlocking zipper elements are contemporaneously extruded and fused to the continuous base layer.   Die clutter is reduced and the method produces a flexible container having desirable sealing, opening and gripping features.
Patent CA-2062287-A1 (CA)
Title: Pilot operated electrically actuated valve assembly
Inventor: PICK JAMES
IPC: F16K31/40
Filed: 1992-03-04
Abstract: PILOT OPERATED ELECTRICALLY ACTUATED VALVE ASSEMBLY Pick et al. 90 CON 326 (AP)                        1066K                     ABSTRACT      A pilot operated electromagnetically actuated valve having a flexible diaphragm main valve operator with a rigid insert forming the pilot valve seat and passage. The pilot valving chamber cover serves as an armature pilot valve guide and also has plural spaced ribs engaging and guiding movement of the rigid insert and pilot valve seat.  A separate inlet passage having an annular filter formed by circumferentially spaced grooves and a resilient flange provided on a disc member inserted in the valve inlet flow to a remote pilot bleed hole in the cover for supplying the pilot valving chamber.