baber/WOPTO huggingface dataset:
Patent CA-2151812-A1 (CA)
Title: Improved pulp bleaching apparatus and method
Inventor: LUTHI OSCAR
IPC: D21C9/02
Filed: 1993-12-10
Abstract: A bleaching process and apparatus for pro-ducing high consistency pulp mats with relatively uniform chemical and temperature distribution in the pulp mat employs a washing press (100) in which the mat is formed in a first chamber (I) while a chemical solution which may first be heated or cooled is added to a second chamber (II). Liquor extraction begins in the first chamber (I) and continues through the second chamber (II) to the nip of the rolls (62). Displacement wash-ing of liquor from the pulp mat begins at the juncture of the first and second chambers and continues until the pulp mat enters the nip. By this process, the adjustment of temperature  and chemical content is uniformly accomplished with a minimum loss of energy or materials.
Patent CA-2154079-A1 (CA)
Title: Power unit having self-oscillating series resonance converter
Inventor: LINDMARK LILJESTRAALE MAGNUS
IPC: H02M3/28
Filed: 1994-01-21
Abstract: A power unit intended to supply an electric bulb, a battery charger, electronic equipment or the like includes a self-oscillating series-resistance converter. The converter includes two mutually connected transistors (TR1, TR2), each of which is activated by a control transformer (T1), and further includes an inductor (L1) and a capacitor (C4) connected in series. Each transistor (TRI, TR2) and a corresponding series-connected capacitive voltage divider (C6, C7) associated with the transistor and/or a further transistor (TR3, TR4) are connected parallel with the inductor (L1), capacitor (C4) and control transformer (T1). The load is activated or energized across the capacitor (C4). The magnetic flux through the control transformer (T1) is influenced by means of a magnetic flux applied externally through a magnetic or corresponding means, so as to change the oscillation frequency of the transistors (TR1, TR2) and therewith the voltage output of the power unit.
Patent CA-2154527-A1 (CA)
Title: Immersed casting tube
Inventor: HOHENBICHLER GERALD
IPC: B22D11/112
Filed: 1995-07-24
Abstract: An immersed casting tube for introducing a metal melt into a continuous casting mold having broad side walls and narrow side walls includes a tube section provided with lateral opening for the metal melt whose central axes substantially are oriented towards the narrow sides of the strand, and a bottom portion provided with a bottom opening for the metal melt. In order to ensure, at high casting rates, both a slight vertical depth of penetration of the metal melt supplied through the casting tube into the liquid core of the strand and a slight whirl formation on the meniscus, the bottom portion includes at least two bottom opening oriented obliquely towards the narrow sides of the strand so as to form at least two casting jets whose flow directions cross each other in a viewing direction perpendicular to the broad sides of the strand.
Patent CA-2157880-A1 (CA)
Title: Persulfate mixtures for repulping wet strength paper
Inventor: CAROPRESO FRANK EDWARD
IPC: D21C5/02
Filed: 1994-02-24
Abstract: A composition containing a persulfate and a carbonate, a bicarbonate or sesquicarbonate, which composition is suitable for oxidizing wet strength resin based broke used in wet strength paper. The combination decreases the time required for effectively repulping broke from such paper. Additionally, the combination is a single product capable of breaking down the wet strength resin and adjusting or maintaining pH at a predetermined value without additional chemical treatment.
Patent CA-2159267-A1 (CA)
Inventor: TAVARES ANTONIO
IPC: E02D29/12
Filed: 1995-09-27
Abstract: L'invention concerne un massif de canalisation souterraine préfabriqué fait en un matériau rigide tel que du béton et comprenant au moins un conduit interne s'étendant  sur  toute  sa  longueur.   Le  massif préfabriqué   présente  une   surface   périphérique extérieure lisse à une première extrémité. Le conduit à cette même extrémité a une ouverture évasée en forme de cloche. Le massif est pourvu de barres d'armature rigides externes à son autre extrémité. L'invention concerne également une méthode pour raccorder une chambre de raccordement à un massif coulé sur place. La chambre de raccordement est pourvue d'une ouverture de taille donnée ayant une garniture de caoutchouc périphérique encastrée. La méthode comprend: le choix d'un massif préfabriqué de façon à ce que la taille de son extrémité lisse soit légèrement inférieure à celle de l'ouverture de la chambre de raccordement; l'introduction de l'extrémité lisse du massif dans l'ouverture  de  la  chambre,  ce  qui  comprime  la garniture  et  produit  ainsi  un  joint  étanche  et flexible;  le raccord de  façon rigide d'un autre conduit à chaque conduit du massif préfabriqué,  à l'autre extrémité de celui-ci; et l'enfouissement de chaque autre conduit ainsi raccordé dans du béton en réunissant celui-ci aux barres d'armature à l'autre extrémité du massif pour obtenir  le raccordement voulu.  L'usage d'un massif préfabriqué pour raccorder une chambre à un massif coulé sur place procure une certaine mobilité à la composante massif/chambre. Cette mobilité prévient le bris du massif et de la chambre, en plus d'éliminer les nettoyages non voulus mais nécessaires de la chambre de raccordement.
Patent CA-2159381-A1 (CA)
Title: Mechanical measuring instruments with electronic readout
Inventor: ESSIG ROLF MARTIN
IPC: G01B7/12
Filed: 1995-09-28
Abstract: Instruments of the invention are intended primarily for measuring large size mechanical workpieces (30cm to 150 cm and more), such as rolling mill rolls.  Each comprises a thin flat body of C-shape in side elevation with a distance measuring transducer at one end and an anvil member at the other.   The transducer employs a spring-urged plunger and is connected electrically to a read-out instrument package disposed to be viewed conveniently by an operator while manipulating the instrument and providing a visual readout, plus storage if required.   The anvil member operative surface is perpendicular to the measurement axis and provides at least a line of contact with the workpiece surface.  The anvil surface extends along the contact line area sufficiently to provide transverse stability during movement of the instrument in its plane while measuring.   The instrument usually is used with its weight supported by the workpiece, and provides accurate measurements, eliminating errors due to operator "gauge feel" and reducing the requirements for operator skill and training. The instrument body may be made employing a composite material of high modulus fibrous material (e.g. carbon fibre) embedded in a matrix of plastics material (e.g. epoxy resin).
Patent CA-2160458-A1 (CA)
Title: Cho cell sialidase by recombinant dna technology
Inventor: WARNER THOMAS G
IPC: C12N15/56
Filed: 1994-05-17
Abstract: A recombinant cell line has a constitutive sialidase whose functional expression is disrupted, for example by homologous recombinant or using antisense RNA. Sialidase is purified from cell culture fluid of Chinese hamster ovary cells. DNA encoding sialidase is obtained using an oligonucleotide probe designed using amino acid sequence data on the sialidase, and the DNA is expressed in host cells transformed with the DNA.
Patent CA-2161764-A1 (CA)
Inventor: HSU YUNG-HO
IPC: A62B1/20
Filed: 1995-10-30
Abstract: The present invention provides an emergency escape installation, which has a fixed unit preset on the high buildings  wherein it includes a door and a trunk  seat, in  said trunk seat one end of a sliding tube is  fixed, and  a  cap is hinged on the bottom end  of  said  trunk seat, and said sliding tube is a soft long tube in which some hoopings are located in a fixed pitch, and hoppered elastic  hook  sleeving  over   at the  middle  of  tube between two adjacent hoopings,  and several backup belts are arranged surround the sliding tube and fixed on  all hoopings  sequentially along axial of said sliding  tube from the top to the bottom, the another end connect with a soft bottom plate, in the common time the sliding tube is  folded  in  the trunk seat of said  fixed  unit  and closed  in it by said cap as a small box attached on the high buildings, and in the emergency, the cap is opened easily and automatically,  undergoing many elastic hooks of damping tubes alternately,  the escapee can drop down to the ground along the vertical sliding tube.
Patent CA-2162681-A1 (CA)
Inventor: BAMBERGER ROBERT LEE
IPC: B29D7/01
Filed: 1994-05-11
Abstract: This disclosure concerns copolymers of ethylene and at least one C4-C12 monomer, and also concerns the production and application of these copolymers. These copolymers may be produced using supported metallocene catalysts in a gas phase polymerization process. These copolymers can be produced to have composition distributions intermediate dose of polyethylene resins derived from Ziegler-Natta catalysts and those of single site catalysts. The polyethylene resins of the disclosure are particularly useful in producing films and in certain other applications.
Patent CA-2163133-A1 (CA)
Title: Divisible Laser Printer Label Sheet
Inventor: POPAT GHANSHYAM H
IPC: G09F3/10
Filed: 1994-05-13
Abstract: A double thickness label assembly (20) has a label layer (46) having a pressure sensitive adhesive (49) mounted on a backing layer (48). The backing layer (48) has a released coating for removal of the labels. The label assembly (20) is divided into two or more sections (22, 24, 26, 28) by perforations (32) that extend through both layers of the assembly.  Each individual section is designed to have increased flexibility at its leading edge (36, 38) by means of die cut and/or perforated lines so that the section can feed through a laser printer (56) without getting jammed.  The user may choose to either print the sheet in its entirety, or may print one or more sections (22, 24, 26, 28) and save the remainder of the sheet for later use. A convenient method of preparing small sets of labels (34) uses a divisible sheet of labels that is divided into sections by perforations A user first divides the sheet into the sections. Each section includes a number of die cut labels. The user then adjusts the feeding mechanism (52) on a laser printer (56) to the width of the section sheets, then prints the labels of the section sheets.
Patent CA-2163878-A1 (CA)
Title: Agents containing a compound with an anti-androgen effect and a compound with a competitive, progesterone-antagonistic effect
Inventor: MICHNA HORST
IPC: A61K31/575
Filed: 1994-05-30
Abstract: Agents contain at least one compound with an anti-androgen effect (AA) as well as at least one compound with a competitive, progesterone-antagonistic effect (PA). These agents are suitable for preparing medicaments for the prophylaxis and therapy of prostate carcinome and benign prostate hyperplasia (BPH). Also disclosed is the use of at least one compound with a PA effect to prepare medicaments for the prophylaxis and therapy of BPH.
Patent CA-2165182-A1 (CA)
Title: Improvements in vitreous silica manufacture
Inventor: SAYCE IAN GEORGE
IPC: C03B37/014
Filed: 1994-06-16
Abstract: A linear burner for the synthesis of silica by vapour-phase reaction of a silicon-containing feedstock in a flame comprises at least five slots opening to an exit face (52a) of the burner and extending side-by-side in the elongate direction of the linear burner, and includes means (P1-P10) to supply a separate gas flow to each of said slots. An assembly of separator plates (52) is disposed between opposed casing parts (50, 51), which assembly defines the slots. At least one of the casing parts (50, 51) defines at least part of a respective plenum chamber (54) for each gas flow, each plenum chamber (54) communicating with a different one of said slots in the separator assembly. The invention also extends to a method of operating such a linear burner.
Patent CA-2166061-A1 (CA)
Inventor: KOLB MICHAEL H
IPC: C07D207/273
Filed: 1994-05-23
Abstract: The present invention relates to novel enantiospecific processes for preparing (S)-4-amino-hepta-5,6-dienoic acid and pharmaceutically acceptable salts thereof, which is useful as an irreversible inhibitor of GABA-T, to novel intermediates thereof, and a process for preparing an intermediate thereof.
Patent CA-2166323-A1 (CA)
Title: Road surface discriminator and apparatus applying same
Inventor: UNO TETSUYA
IPC: G01W1/00
Filed: 1994-06-29
Abstract: Light is projected upon a road surface (LD) from a light source (11) for illuminating the road surface.          Diffuse reflected light from the road surface (LD) is received by light sensors (31A, 31B) through a spatial filter, and the resulting light-reception signals are applied to a differential amplifier circuit (51).  A center-frequency component corresponding to the spatial frequency of the spatial filter is extracted by a tracking band-pass filter (52), and the intensity (Da) thereof is detected by an amplitude detector circuit (54).  Low-frequency component intensity (Db) corresponding to a spatial frequency lower than the spatial frequency of the spatial filter is detected by a tracking low-pass filter (55) and an amplitude detector circuit (56).  The condition of the road surface is judged to be snow, gravel or asphalt in a discriminating circuit (60) based upon the center-frequency component intensity (Da) and the low-frequency component intensity (Db).
Patent CA-2167435-A1 (CA)
Inventor: ITOJIMA MITSUHIKO
IPC: B65H23/185
Filed: 1996-01-17
Abstract: A photographic processing apparatus includes a main drive roller mechanism for transporting a photosensitive material in forward and reverse transport directions along a transport passage.   The apparatus also includes forward and reverse drive roller mechanisms for assisting the main drive roller mechanism.   The forward and reverse drive roller mechanisms are disposed upstream of the main drive roller mechanism relative to the forward transport direction.  At least the forward and reverse drive roller mechanisms are supplied with power by a common drive source.  The forward drive roller mechanism includes a first one-way clutch mechanism for restricting the rotational force supplied from the drive source when the photosensitive material  is transported reversely.   The reverse drive roller mechanism includes a second one-way clutch mechanism for restricting the rotational force supplied from the drive source when the photosensitive material is transported forwardly.
Patent CA-2173757-A1 (CA)
Inventor: LISHEJKOVA CVETELINE DIMITROVA
IPC: A63B69/20
Filed: 1993-10-14
Abstract: Ce sac d'entraînement destiné à la boxe et au karaté est conçu pour être utilisé dans le cadre de différents sports de combat. La nouvelle structure de ce sac d'entraînement lui confère une plus grande durabilité ainsi qu'une bonne résistance à des coups durs et rapides et à un pliage répété. Il permet également de s'exercer à appliquer des coups au moyen des membres inférieurs. Il est possible de modifier sa forme et son poids, ainsi que sa rigidité, de façon à les rendre proches de ceux du corps humain, et d'élargir son champ d'application.
Patent CA-2175035-A1 (CA)
Title: Switchmode ac power controller
Inventor: IONESCU ADRIAN F
IPC: H05B39/04
Filed: 1994-10-25
Abstract: A switchmode AC power controller for controlling the current through a load (70) such as a large lamp array connected to an alternating current source. The controller contains an AC solid state switch (20), a synchro-flywheel(30) an output inductor (40) and capacitor (50). The load current is controlled by triggering signals generated by a synchronized modulator (120).
Patent CA-2177677-A1 (CA)
Inventor: BAILLELY GERARD MARCEL
IPC: C11D3/12
Filed: 1994-12-01
Abstract: Granular laundry detergents are formulated with percarbonate bleach and oxidation-sensitive ingredients such as brighteners, enzymes, perfumes and the like. The storage stability of such compositions is improved by the presence of silicate. For example, the tendency of stilbene-type brighteners to form undesirable yellow shades in the presence of percarbonate is diminished by the incorporation of silicate materials into the granules.
Patent CA-2178683-A1 (CA)
Inventor: BOUCHARD REJEAN
IPC: B01D29/35
Filed: 1996-06-10
Abstract: A cylindric screen, particularly for use in pressure screening devices in the pulp and paper industry, is constructed with peripherally elongated and substantially continuous screening slots. The cylindric screen is made from an integral piece of metallic sheet material, such as a stainless steel sheet, by forming spaced apart channels from one end edge to an opposite end edge of the sheet, leaving a rib between each of the channels. On the surface opposite the ribs continuous grooves are formed which are substantially perpendicular to the ribs, and slots are provided in the bottom of each groove. Then the sheet is rolled into a cylindrical shape with the side edges in abutment, and the side edges are secured to each other (e.g. by welding then directly to each other, and/or to an added elongated cover rib).
Patent CA-2179519-A1 (CA)
Title: Integrated laser power monitor
Inventor: HIBBS-BRENNER MARY K
IPC: H01S5/183
Filed: 1994-12-16
Abstract: A vertical cavity surface emitting laser source having an integrated power monitor at the non-emitting end of the source.
Patent CA-2182864-A1 (CA)
Title: Mechanical thrombus maceration device
Inventor: CLAUDE TIMOTHY
IPC: A61B17/00
Filed: 1995-02-08
Abstract: In one embodiment, the present invention provides a mechanical thrombus maceration device which includes a flexible shaft adapted to be guided along a vascular path and rotated within a vascular channel; a rotor affixed to the shaft adjacent the distal end thereof for rotation therewith; drive means for rotating the shaft; and a rotor housing within which the rotor rotates. The rotor housing of this embodiment comprises a generally cylindrical wall substantially surrounding the rotor and having at least one port formed therein, the port or ports being positioned about the housing such that when a fluid (e.g. blood) is ejected through the ports within a vascular channel, the housing will tend to deflect toward one side of the vascular channel to permit the device to be steered during deployment. In another embodiment of the invention, the device includes an elongate, flexible shaft adapted to be guided along a vascular path and which is rotatable within a vascular channel; a plurality of rotors spaced from one another along the shaft and attached to the shaft for rotation therewith; drive means for rotating the shaft; and a rotor housing enclosing at least one of the rotors.
Patent CA-2184021-A1 (CA)
Inventor: ELABD HAMMAN
IPC: H04N9/04
Filed: 1996-08-23
Abstract: An  image  sensor  device  capable  of  snap  shot  color applications comprising an array of image registers for converting the light from successive image frame exposures into indicative charge packets, and an array of light-shielded  storage  registers  interspersed  in  regular displacements  among the array  of  image  registers  for receiving the transfer of the charge packets from adjacent image registers over multiple image frame exposures, whereby,  for example, red, green, and blue color image frames can be rapidly acquired upon the opening of a flash exposure shutter, and very rapidly transferred in parallel into the storage registers from which the three frames can be read out as a color image when the shutter is closed.
Patent CA-2191150-A1 (CA)
Title: Trailer hitch
Inventor: VAN VLEET ROBERT D
IPC: B60D1/52
Filed: 1996-11-25
Abstract: A trailer hitch including a base that is adapted for connection to a vehicle. A sleeve having a shaft mounted therein is preferably connected to the base. A mounting shank is preferably connected to the base at a location that is offset from the sleeve. A spool is removably mountable on the mounting shank. The trailer hitch also includes a pivotal locking arm that extends transversely outward from the shaft. A reinforcing member is connected to the pivotal locking arm at a location offset from the sleeve. The reinforcing member extends downward from the pivotal locking arm and is arranged such that the reinforcing member can engage the spool to increase the pull strength of the trailer hitch.
Patent CA-2192221-A1 (CA)
Inventor: KLAUBERT BRIAN DOUGLAS
IPC: B31C1/00
Filed: 1996-12-05
Abstract: Winding of a dried tissue sheet onto a parent roll is improved by the use of a vacuum reel drum which secures the sheet to the surface of the vacuum reel drum, thereby eliminating non-uniform, winding associated with sheet flutter and boundary air. This invention has preferred applications in the manufacture of tissue products, such as facial tissue, bath tissue and paper towels.
Patent CA-2195091-A1 (CA)
Inventor: DE FLORA ANTONIO
IPC: A61K31/70
Filed: 1995-07-10
Abstract: L'invention concerne des 5',5'-pyrophosphates de nucléosides d'origine non naturelle, sélectionnés parmi le thymine-3'-azido-2',3'-didésoxy-D-riboside, le 5-fluorouracil-2'-désoxy-D-riboside, l'uracil-3'-azido-2',3'-didésoxy-D-riboside, le guanine-2',3'-didésoxy-D-riboside, l'hypoxanthine-2',3'-didésoxy-D-riboside, le cytosine-2',3'-didésoxy-D-riboside et l'adénine-2',3'-didésoxy-D-riboside. L'invention concerne également leur procédé de production et leur utilisation en tant qu'agents thérapeutiques contre les tumeurs et les infections rétrovirales y compris les infections au VIH. Ces composés peuvent être administrés en tant que principe actif de compositions pharmaceutiques ou sous forme de promédicaments encapsulés dans des excipients biologiques, par ex. des érythrocytes transformés, afin de lutter contre des populations de cellules cibles responsables du développement de troubles pathologiques.
Patent CA-2195412-A1 (CA)
Title: Water-hammer actuated crusher
Inventor: WALTER BRUNO H
IPC: B02C1/00
Filed: 1995-07-18
Abstract: A crusher for materials such as rock is described. Material is crushed between an inclined anvil (36) and a vibrating impact surface (34). The impact surface (34) is driven by high intensity pressure pulses which are generated by creating repeated water hammers in a low pressure high volume hydraulic circuit (65). The water hammer may act directly to drive a piston (53) bearing the impact surface (34) toward the anvil (36). In another configuration of the invention, the water hammer pulse stores energy by stretching a tension member (292) or by distorting a plate (190). When the water hammer pulse passes the stored energy suddenly drives the impact surface towards the anvil. The crusher of the invention has few moving parts and is energy efficient.
Patent CA-2195524-A1 (CA)
Inventor: BILLINGS DAVID P
IPC: A63B53/02
Filed: 1995-07-20
Abstract: A golf club shaft for use in a golf club such as a putter. The shaft (12) preferably comprises an oversized hollow, circular tube having an outer diameter of at least 0.75 inches along substantially its entire length.
Patent CA-2195885-A1 (CA)
Title: Fashion runway for dolls
Inventor: VIROLAINEN BOBBY AULIS
IPC: A63H33/00
Filed: 1997-01-24
Abstract: The display includes a runway having a slot which extends along the length of the runway. A curtain is mounted above the runway and is made up of two panels separated by an opening which extends vertically upwardly from the slot. A rod slides beneath the runway and has an upturned end which extends through the slot and to which a doll is attached. As the rod is pushed or pulled, the doll moves along the slot.