baber/WOPTO huggingface dataset:
Patent CA-2149841-A1 (CA)
Title: Noise Cancellation in Railway Cab Signal
Inventor: CAPAN RONALD R
IPC: B61L3/24
Filed: 1995-05-19
Abstract: A cab signaling apparatus for use on board a railway vehicle which is propelled on rail tracks by an electric drive motor.  The invention utilizes a cab signal transmitted to the vehicle through a track circuit in the rails.  On board receiving of the cab signal is done by a receiving coil, which may be mounted in front of the lead axle, as a current transformer around the lead axle, or at another location where the cab signal current is relatively strong.  The cab signal that is sensed has a cab signal component and an interference component.  On board the vehicle a sampled signal is taken which has the characteristic of the electromagnetic interference subjected to the cab signal receiver coil.          The sampled signal is then subtracted from the sensed cab signal such that the sampled interference signal cancels the interference component of the cab signal.          Embodiments include placing the sampling means as an inductive coil behind the lead axle and in other embodiments in front of the lead axle above the cab signal sensing coil.  In some embodiments the noise sampling coil is at 90 degrees to the cab signal receiving coil.  A series arrangement with selective polarity on the coils permits a vital arrangement.  In some embodiments the sampling to achieve a sampled signal characteristic of electromagnetic interference is done by using a current transformer coil on the electric drive motor cable.
Patent CA-2151120-A1 (CA)
Title: Compliance meter for respiratory therapy
Inventor: DEIGHAN JOSEPH
IPC: A61M39/10
Filed: 1993-12-08
Abstract: A respiratory apparatus (10) operable for delivering a breathable gas to the airway of a patient includes a status monitor (24, 26) for determining the status of usage of the unit by the patient and a timer (32) for determining the accumulated time of usage of the unit by the patient.
Patent CA-2155025-A1 (CA)
Inventor: OLSON PAUL D
IPC: B60B5/02
Filed: 1993-01-29
Abstract: There is disclosed a hollow-form wheel (10) formed entirely by injection molding of plastic. The wheel has an integral, central sleeve (12) to receive a wheel hub assembly, at least three, hollow-form, integral spokes (16) that are symmetrically located at equal angular spacings about the hub, and an integrally formed annular rim (20) having a peripheral channel (22) to receive a tire. The wall thickness of the sidewalls of the rims and spokes and the central hub area of the wheel are of uniform thickness to provide the strength and stiffness properties at least equal to those of a metal spoked wheel.
Patent CA-2155067-A1 (CA)
Title: Antiviral compounds and pharmaceutical compositions
Inventor: DE LA FUENTE JESUS ANGEL
IPC: C07D409/04
Filed: 1995-07-31
Abstract: The present invention provides novel compounds and novel pharmaceutical compositions which possess antiviral activity, particularly against retroviruses. The compositions comprise a pharmaceutically acceptable carrier, diluent or excipient, and an effective antiviral amount, preferably anti-retroviral effective amount of a compound having the following generic formula:       wherein X is selected from the group consisting of O and S; n is an integer of from 1 to 9, each R1 is independently selected from the group consisting of hydrogen, C1 to C4 lower alkyl group (or others); and Ring is a C2 to C6 ring system containing up to three double bonds, and up to three heteroatoms selected from nitrogen, sulfur and/or oxygen.
Patent CA-2156951-A1 (CA)
Title: Golf club with skewed sole
Inventor: HARDMAN THOMAS F
IPC: A63B53/04
Filed: 1995-08-25
Abstract: A golf clubhead includes a projection which extends downwardly from the sole of the clubhead.  The projection extends rearwardly from the face of the clubhead and away from the heel of the clubhead.  The projection extends generally in the direction in which the clubhead is moving when it impacts a golf ball.
Patent CA-2158342-A1 (CA)
Title: Process for the production of styrene
Inventor: HUCUL DENNIS A
IPC: B01J23/84
Filed: 1993-12-08
Abstract: 4-Vinylcyclohexene is converted to styrene in the presence of a catalyst comprising tin, antimony, and oxygen. The feed stream to be contacted with the catalyst comprises water, 4-vinylcyclohexene, and oxygen. A ratio of water to 4-vinylcyclohexene above 12:1, preferably above 14:1, significantly increases the half-life of the catalyst. The catalyst is prepared by coprecipitating a tin chloride and an antimony chloride followed by calcination of the precipitate at a temperature in the range from 850 °C to 1000 °C.
Patent CA-2158728-A1 (CA)
Title: Traction-free web transport in a compression section
Inventor: KOTITSCHKE GERHARD
IPC: D21F3/02
Filed: 1995-01-19
Abstract: A compression section of a machine to produce webs of fibrous materials, preferably paper webs, has the following characteristics: (a) a smooth cylinder (4.1) in contact with the web forms a first nip (I) together with a first counter-cylinder (5.1) or with a compression band that runs on a shoe, and forms a second nip (II) with a second counter-cylinder (6.1); (b) an endless, water-absorbing felt (F1) runs together with the web through both consecutive nips; (c) the second counter-cylinder (6.1) is designed as a suction cylinder with an internal stationary seal support that forms a suction zone (7, 8) that lies at least for the most part downstream of the second nip. The compression section is characterized in that a second endless felt (F2) takes over the web from the first felt (F1) in a manner known per se and conveys it through a third nip (III).
Patent CA-2159057-A1 (CA)
Title: Powered conveyor assembly and centering unit
Inventor: GROSS PETER L
IPC: B65G15/12
Filed: 1995-09-25
Abstract: Disclosed is a conveyor comprising two conveyor sections, each conveyor section having a frame extending generally longitudinally of the conveyor, a first splined shaft rotatable in an end of the frame, a second shaft rotatable in the other end of the frame, a first wheel on the first shaft and a mechanism for rotating the first wheel on one of the conveyor sections.  A second wheel is on the second shaft and a belt is trained about the first and second wheels, the belt having a first side for engaging the first and second wheels and a second side for engaging an article conveyed along the conveyor.  A relatively low friction surface exists between the first and second wheels and the first side of the belt lies adjacent the relatively low friction surface to be supported thereby when an article is conveyed along the conveyor.  The two conveyor sections are coupled together, the coupling comprising first and second bearing rollers, the first roller having a splined center opening for engaging the splines on the first shaft for receiving the ends of the first shaft to synchronize the movements of the belts on the two conveyor sections.  The spacing between the conveyor sections may be adjusted.
Patent CA-2160515-A1 (CA)
Inventor: CHIERICI ANTONIO
IPC: A23P1/10
Filed: 1995-10-13
Abstract: Measured quantities of cereal flakes are loaded into suitable forming moulds in which they are subjected to successive pressure pulses spaced by respective periods in which the pressure is released, so as to compact the cereal flakes, producing cereal aggregates in which the tendency to crumble is considerably reduced.
Patent CA-2161891-A1 (CA)
Title: Composition
Inventor: CAMPBELL JAMES STANLEY
IPC: G03G9/09
Filed: 1994-03-29
Abstract: Coloured cyan toner for electroreprography and laser printing based on Solvent Blue 70, and a trichomatic set of coloured toners based on Solvent Blue 70, benzodifuranone red dyes and azo pyridone yellow dyes.
Patent CA-2163114-A1 (CA)
Inventor: AURELL CARL-JOHAN
IPC: A61P13/02
Filed: 1994-07-07
Abstract: L'invention concerne un peptide ayant la formule (I) dans laquelle Mpa représente un reste d'acide 3-mercaptopropionique (-S-CH2-CH2-CO-), X représente D-tryptophan (D-Trp) ou  beta -(2-Naphtyl)-D-alanine (D-Nal), Ile représente isoleucine, Y représente alloisoleucine (alloIle) ou l'acide (S)-2-Amino-3-éthyl-pentanoïque (Ala( beta -Et2)), Asn représente asparagine,  alpha -Abu représente un reste d'acide  alpha -aminobutyrique de la formule (II) et N alpha MeOrn représente N alpha -méthyl-ornithine. Les peptides peuvent être utilisés comme ingrédients actifs dans un médicament, notamment dans une composition pharmaceutique destinée au traitement thérapeutique des contractions musculaires excessives de l'utérus.
Patent CA-2164070-A1 (CA)
Inventor: LECLERC GERARD
IPC: H04L1/20
Filed: 1995-11-29
Abstract: Dispositif de détection de présence ou d'absence d'une porteuse modulée en numérique, récepteur et procédé correspondants L'invention concerne notamment un dispositif de détection de la présence ou de l'absence d'une onde porteuse d'un signal reçu par un recepteur. L'onde porteuse est modulée par un signal numerique à la fréquence d'une horloge symbole. Selon l'invention, ce dispositif comporte: - un circuit non linéaire (32) recevant le signal reçu ou le signal reçu transposé en fréquence, le circuit non linéaire (32) fournissant notamment un signal dont la fréquence correspond à la fréquence de l'horloge symbole, - un filtre bande étroite (33) centré sur la fréquence de l'horloge symbole et fournissant un signal filtré (SF), - des moyens de détection (34) du signal filtre (SF) fournissant un signal détecté (SD), - des moyens de comparaison (35) du signal détecté (SD) avec une valeur de référence (REF), le signal de sortie des moyens de comparaison constituant un signal (ALARME) indicateur de la présence ou de l'absence de l'onde porteuse. L'invention s'applique notamment aux récepteurs comprenant un dispositif de commande automatique de gain placé en amont et le signal indicateur peut éventuellement être appliqué à un dispositif de commande automatique de fréquence.
Patent CA-2164110-A1 (CA)
Title: Two stage flash analog-to-digital-signal converter
Inventor: MICHEL JEAN YVES
IPC: H03M1/14
Filed: 1994-05-02
Abstract: A two-stage flash analog-to-digital signal con-verter is described.  The first stage has a voltage divider network and a set of amplifiers that perform an initial interpolation. The initial interpolation results are di-rectly coupled. i.e. no resistive or capacitive elements. to a second stage comprising a set of comparators hav-ing multiple inputs. The multiple inputs of the sec-ond stage comparators are weightily coupled to the first stage amplifiers in a manner so as to cause the second stage comparators to generate a digital representation of the analog signal.
Patent CA-2170521-A1 (CA)
Title: Immunoreactive antigens of hepatitis e virus
Inventor: ANDERSON DAVID ANDREW
IPC: C12N15/51
Filed: 1994-09-23
Abstract: The present invention relates generally to molecules such as peptides, polypeptides and proteins which carry epitopes and in particular B cell epitopes from antigenic proteins encoded by Hepatitis E Virus. These molecules are selectively immunoreactive to convalescent and/or acute phase circulating antibodies to the Hepatitis E Virus and are useful in the development of diagnostic therapeutical and prophylactic agents for Hepatitis E Virus.
Patent CA-2171660-A1 (CA)
Inventor: HABBERSETT JOHN I
IPC: E05D15/22
Filed: 1996-03-13
Abstract: A guard guide surface for the lift-off slot of a tilt sash shoe is disposed obliquely above the lift-off slot to engage the head of a sash pin rising directly vertically from the slot. This prevents accidental withdrawal of a sash pin from a shoe when the sash is tilted. When the sash is slanted, however, for intentional withdrawal from a window, the sash pins can be lifted from their slots in off-vertical motions that clear the guide surface.
Patent CA-2175133-A1 (CA)
Inventor: ROKUGO YOSHINORI
IPC: H04J3/06
Filed: 1996-04-26
Abstract: Using positive-phase or negative-phase clocks of phase count clock Pf0, a number M of multilevel quantized phase comparators output as values quantized in multiple levels the phase differences of output signals outputted from first and second N-stage frequency dividers wherein input clocks and output clocks, respectively, of a digital PLL have been N-stage frequency divided and moreover, divided into M groups. An adder adds this phase difference information and outputs advanced pulses or delayed pulses.  An N1 counter counts up in response to advanced pulses and both outputs an increment pulse and undergoes setting to initial value N1 upon counting up to 2N1.  In response to delayed pulses, the N1 counter counts down, and upon counting down to "0" both outputs a decrement pulse and undergoes setting to initial value N1.
Patent CA-2175312-A1 (CA)
Title: On-line steam sanitization system
Inventor: PRICER KENNETH KURT
IPC: G02C13/00
Filed: 1996-04-29
Abstract: An on-line steam sanitization system and method for a deionized water supply system for a plant production line such as a plant for the production and packaging of contact lenses.  The sanitizing operation is performed by directing a clean deionized steam through all of the deionized water supply system while the deionized water supply system is closed, rather than disassembled and open to possible recontamination as in the prior art, which provides a much more effective sanitization operation, and also substantially reduces the down time for the plant production line.  The clean steam is generated by using available house steam to heat deionized water from the deionized water supply to generate a clean steam therefrom which is suitable for the sanitization operation.  The use of steam in an on-line sanitizing operation in the existing deionized water supply system required that the production line equipment be modified to withstand the pressure and heat of the steam sanitizing operation, which entailed the removal of reservoirs and their replacement with pressure regulators, a new manifold design which has a symmetrical design with an equal number of fixtures leading to each of the pumps, and by utilizing Kynar tubes and Kynar fixtures.
Patent CA-2176839-A1 (CA)
Title: Auxiliary water-supply system for an internal combustion engine
Inventor: HSU CHIH-CHENG
IPC: F02M25/07
Filed: 1996-05-16
Abstract: An auxiliary water-supply system for an internal combustion engine, particular a gasoline engine. The engine is connected with an EGR device for reducing NOx exhaust. The auxiliary water-supply system comprises a water-supply device connected with the EGR device for supplying water to the EGR device. Water supply is controlled by a computer control unit. Water and the waste gas of the gasoline engine are fed into the gasoline engine simultaneously so as to increase the combustion efficiency of the engine, to reduce the density of pollution waste exhausted, and to increase the serviceable life of the gasoline engine.
Patent CA-2177835-A1 (CA)
Title: Methods and compositions for the suppression of neu mediated transformation
Inventor: HUNG MIEN-CHIE
IPC: C07K14/71
Filed: 1994-12-02
Abstract: Disclosed are methods and compositions for the suppression of expression of the neu oncogene, as well as suppression of neu oncogene-mediated transformation, tumorigenesis and metastasis. The method disclosed involves introduction of adenovirus early 1A gene (the E1A gene) products, or the large T antigen (the LTgene product), or both into affected cells. These products, which are preferablyintroduced by transfection of the E1A gene into affected cells, serve to suppress neu gene expression as measured by a reduction of p185 expression. Furthermore, the E1A gene products surprisingly serve to suppress the oncogenic phenotype, as indicated by a reduction in cell growth, growth in soft agar, as well as tumorigenic and metastatic potential in vivo. The inventors propose that E1A gene products, LT gene products or derivates therefrom, may ultimately be employed as treatment modalities for neu-mediated cancers, such as cancers of female genital tract andbreast. The inventors also propose methods of transfecting cells with either the E1A or the LT gene products using adenoviral vectors or liposomes.
Patent CA-2178510-A1 (CA)
Title: A writing implement
Inventor: CHU CORNEL
IPC: B43K25/02
Filed: 1995-01-09
Abstract: A writing implement comprises an elongate hollow housing (1) which carries or is associated with a member carrying a clip (8). The clip is movable to a position in which it abuts the elongate body, the combination of the body and the clip having a thickness which does not exceed the thickness of the body alone. The clip (8) is carried on an actuator member (2) which has a resilient arcuate portion (12) received within the housing, the actuator element (2) being movable from a position in which a writing mechanism (3) is extended to a position in which the writing mechanism is retracted.
Patent CA-2178879-A1 (CA)
Title: Process for purifying valine
Inventor: HASEGAWA KAZUHIRO
IPC: C07C229/08
Filed: 1996-06-12
Abstract: An aqueous solution containing valine is reacted with p-isopropylbenzenesulfonic acid or a water-soluble salt thereof to form valine p-isopropylbenzenesulfonate crystals. The valine p-isopropylbenzenesulfonate crystals are separated from the solution and the valine p-isopropylbenzenesulfonate is then dissociated to obtain valine having a high purity. Since the solubility of valine p-isopropylbenzenesulfonate is low, valine can be obtained in high yield. The valine p-isopropylbenzenesulfonate in crystal form obtained in the process of the invention and comprising 1 mole of valine and 1 mole of p-isopropylbenzenesulfonic acid represents a novel product.
Patent CA-2181235-A1 (CA)
Inventor: HAYES RICHAR ALLEN
IPC: D06L1/14
Filed: 1995-02-24
Abstract: L'invention concerne certaines colles spécifiquement utiles constituées de copolymères à l'alcool polyvinylique ainsi que des colles à base de mélanges de ces copolymères avec des polymères de colles connues. Les colles sont utiles dans le procédé de production de matières tissées, du fait qu'elles constituent d'excellentes colles et sont particulièrement adaptables à un traitement de désencollage utilisant des solutions caustiques. Les colles sont facilement désencollables, même lorsque les tissus textiles tissés ont été traités à chaud. Lesdites colles facilement désencollables sont à base de copolymères présentant un niveau élevé de comonomère d'ester acrylique.
Patent CA-2184943-A1 (CA)
Title: Lateral seal and control system
Inventor: FORSYTH DAVID G
IPC: E21B23/00
Filed: 1996-09-06
Abstract: A downhole multilateral completion tool is disclosed which includes a pre-machined window joint and a production tube adapted to be moved downhole through the window joint and kicked off into the pre-drilled lateral.  A flange and seal form a part of the uphole end of the production tube and provide a 3500 psi seal after the production tube is placed in the lateral.  The invention, moreover, includes an energizing sleeve which biases the flange into a sealed position and a packer which by pulling the production tube, enhances the seal of the flange.
Patent CA-2187606-A1 (CA)
Title: Window lock
Inventor: ELLIS FREDERICK G
IPC: E05F11/12
Filed: 1996-10-10
Abstract: A lock for a window includes a lock body mountable on the window frame having a base plate and a raised portion standing upwardly from the base plate. The raised portion is a hollow interior within which a lock handle projects and on which is mounted the lock handle for pivotal action about a pin transverse to the raised portion. The raised portion defines a substantially rectangular flat upper surface parallel to the base plate. The handle portion includes a flat plate acting as a cover for the rectangular upper surface together with a manually graspable arch shaped element projecting beyond the end of the plate portion. Within a recess underneath the arch shaped portion is provided a trigger latch engageable with a web across the hollow interior of the raised portion for latching the handle in a lowered lock position. The lock cooperates with a keeper on the window and holds the window against being forced open without being overcenter. The lock also co-operates with a bar carrying a plurality of spaced lock elements each cooperating with a respective keeper and connects to the bar either with a pivotal link or connects by a disk and socket connection which allow the bar to move along its length while the lock end moves in an arc.
Patent CA-2188150-A1 (CA)
Title: Improved disk substrate
Inventor: KWON OH-HUN
IPC: C04B41/91
Filed: 1995-04-18
Abstract: This invention relates to a disk substrate for use in a disk drive, the disk substrate consisting essentially of partially stabilized zirconia and having a surface roughness (Ra) of no more than 10 angstroms.
Patent CA-2190875-A1 (CA)
Inventor: STEPAN WALTER
IPC: A61F9/02
Filed: 1996-11-20
Abstract: A protective eyeglass assembly includes a frame having left and right lens frame portions, lens receiving apertures in the frame portions, a central bridge portion connecting the frame portions, and left and right temple bars. The eyeglass assembly further includes an integrally formed lens piece which is adapted to be detachably secured to the frame so that a user can interchange the frame and/or replace the lens piece. The lens piece includes left and right lens panels, a central bridge portion connecting the lens panels, left and right side shields, and left and right upper shields. The lens piece is received in assembled relation with the frame with the left and right lens panels aligned in registry with the left and right lens frame portions. The lens panels and bridge portion of the lens piece have an outer peripheral margin which is substantially similar to the left and right frame portions and bridge portion of the frame such that the lens piece is substantially hidden when viewing the eyeglass assembly from a frontal viewing position. The left and right lens panels further include stepped lens formations which are received in interfitting engagement into the lens receiving apertures of the frame when the lens piece is assembled with the frame. The temple bars are angularly adjustable with respect to the frame portion, and are further telescopically adjustable in length.
Patent CA-2193225-A1 (CA)
Title: Radar apparatus
Inventor: VAN OMMEREN MARINUS JOSEPHUS S
IPC: G01S7/28
Filed: 1995-06-22
Abstract: Radar apparatus provided with a transmitting unit (1), having a transmit phase shifter for providing each transmitted pulse in a burst with a selected phase shift, and a receiving unit (7) having a receive phase shifter (9) for cancelling the selected phase shift upon reception. This enables unimpeded radar transmissions and causes an operational repeater jammer to be misled.
Patent CA-2194845-A1 (CA)
Title: Track tamping machine
Inventor: THEURER JOSEF
IPC: E01B27/16
Filed: 1997-01-10
Abstract: A track tamping machine (1) comprises a machine frame (3), a track lifting and lining unit (7), a reference system (17) for track position correction, and two tamping units (8,9) arranged one immediately following the other in the longitudinal direction of the machine. The tamping units are independently vertically adjustable and have tamping tools (20,21) with tamping tines (22,23), squeezable towards one another by means of squeeze drives (32), for immersion into ballast on both sides of rails (10) of a track (4). The tamping tines (23) of only one of the tamping units (9), for forming a switch tamping unit (29), are respectively mounted for transverse pivoting about an axis (26) extending approximately in the longitudinal direction of the machine and are connected to a pivot drive (27). Two operator's cabs (6) are distanced from one another in the longitudinal direction of the machine, each comprising a control device (31) for controlling one of the tamping units (8 or 9) arranged between the cabs (6).