baber/WOPTO huggingface dataset:
Patent CA-2192219-A1 (CA)
Inventor: GLAUDEL STEPHEN P
IPC: G01F15/02
Filed: 1996-12-05
Abstract: A flowmeter (M) measures fluid flow in a system and produces a train (Si) of digital pulses representing the measured flowrate. The frequency of the pulses is intended to be proportional to the flowrate. A preamplifier (10) controls generation of output pulses (Fn, Fq) of an output digital pulse train (So). The preamplifier first decodes the digital pulse train using a phase discriminator (14). Output pulses from the discriminator are counted (at 24 and 46) to count the number of pulses and their frequency of occurrence. A frequency multiplier (40) is responsive to the pulses and their occurrence to generate each pulse of the output pulse train. Generation of these pulses involves use of a scaling factor (Vcf) by which meter performance factors, drift, and the fluid flow environment are taken into account. Use of the scaling factor enables the timing and frequency of the generation of pulses comprising the output pulse train to both be controlled so these pulses are produced at a rate which is linearly proportional to the measured fluid flowrate.
Patent CA-2192268-A1 (CA)
Title: Amino alcohol derivative and method for preparing the same
Inventor: JINBO MASAYUKI
IPC: C07D207/12
Filed: 1996-12-06
Abstract: A process for preparing a 2-acylamino alcohol derivative which comprises (A) reacting an aminopropanol derivative represented by the following formula (1): Y-CH2-C*H(NHP1)-C*H(OH)-R1 (1) with an amine represented by R2H to synthesize an amino alcohol derivative represented by the following formula (2): R2-CH2-C*H(NHP1)-C*H(OH)-R1 (2) (B) leaving P1 from said amino alcohol derivative represented by formula (2) to synthesize an amino alcohol derivative represented by the following formula (3): R2-CH2-C*H(NH2)-C*H(OH)-R1 (3) (C) reacting said amino alcohol derivative represented by formula (3) with a carboxylic acid represented by R11COOH or a reactive derivative thereof to prepare a 2-acylamino alcohol derivative represented by the following formula (4): R2-CH2-C*H(NHCOR11)-C*H(OH)-R1(4) wherein * represents an asymmetric carbon atom, and P1, R1, R 2 and R" are defined in the specification. A process for preparing alcohol derivatives having an acylamino group through several steps from amino group-protected 2-aminopropanol derivatives, and novel amino alcohols useful as intermediates in the process for preparing the alcohol derivative.
Patent CA-2193588-A1 (CA)
Title: Lubricant retaining valve for universal joint
Inventor: SMITH JOHNNY N
IPC: F16N21/02
Filed: 1996-12-20
Abstract: A cross member for a universal joint includes a body portion having at least one trunnion extending radially outwardly from the body portion, the trunnion including an outer bearing surface. A bearing cup having an open end and an inner bearing surface is mounted on the trunnion such that the inner bearing surface of the bearing cup is disposed co-axially about the outer bearing surface of the trunnion. A bearing is disposed between the inner bearing surface of the bearing cup and the outer bearing surface of the trunnion to enable rotation of the trunnion relative to the bearing cup. A trunnion bore is positioned within the trunnion and it communicates with the bearing to enable lubricant within the trunnion bore to reach the bearing. A lubrication conduit communicates with the trunnion bore to supply a lubricant to the trunnion bore.  A retention valve is positioned within the lubrication conduit for preventing drainback of the lubricant within the lubrication conduit. The retention valve includes a valve body extending along a portion of the length of the conduit, with the valve body having an outer surface approximately the same size as the inner surface of the lubrication conduit. The retention valve also includes a plurality of grooves in the surface of the valve body, with the grooves extending generally in the direction of the length of the conduit, and the grooves being large enough to enable the passage of the lubricant under pressure past the retention valve, but small enough to prevent drainback of lubricant within the lubrication conduit.
Patent CA-2193651-A1 (CA)
Title: Improved self-sealing injection sites and plugs, implantable prosthesis and other devices utilizing same and method of manufacture
Inventor: PETRICK TIMOTHY B
IPC: B29C55/00
Filed: 1995-03-03
Abstract: Small compression type injection site in the form of a self-sealing septum-like member that is self-sealing for hypodermic needle punctures and the like and a method of manufacture. Compressive stresses are introduced into a stretched clastomeric rod, whereby the decreased diameter cross section is maintained by placing a wrapping around and about the stretched rod and adhesively sealing it thereto. Sliced cross-sectional pieces of the rod then provide injection sites to be incorporated into the wall of an implantable prosthesis as by bonding or the like.
Patent CA-2193890-A1 (CA)
Inventor: KAWANO TETSUO
IPC: B66C13/06
Filed: 1996-04-25
Abstract: On décrit un procédé ainsi qu'un dispositif, lesquels sont destinés à empêcher une déviation par rapport à la verticale, ne nécessitent ni moyens mécaniques ni optiques de détection de l'angle de déviation, permettent l'obtention de performances élevées et sont bon marché. La présente invention concerne un procédé de commande destiné à empêcher la déviation d'un filin de grue pourvue d'un dispositif d'entraînement sous forme d'un chariot servant à transporter une charge suspendue à l'aide dudit filin, ce procédé comprenant les étapes consistant à calculer et à estimer un signal de référence tM* d'un couple de moteur électrique, lequel signal ne contient pas de variation de couple de charge due à la déviation du filin, une constante de gain et une constante de temps équivalente étant appliquées par un système de commande et un système d'entraînement, puis à comparer ce signal tM* estimé avec un couple tM de la charge présente, afin de pouvoir calculer ainsi un signal I¿2W?* de charge de déviation, lequel est proportionnel à l'angle de déviation et à la charge du filin, et à renvoyer négativement à une commande N¿S? de vitesse du chariot d'un dispositif (1) d'entraînement de chariot un signal Nw que l'on obtient en soumettant un écart entre la valeur estimée .theta.¿1? par détection d'un angle de déviation, laquelle valeur est proportionnelle au signal de charge de déviation, et une valeur .theta.¿s? de consigne d'angle de déviation, à une compensation d'avance/de retard de phase. On peut ainsi limiter la déviation par rapport à la perpendiculaire d'une charge suspendue à l'aide d'un filin.
Patent CA-2195477-A1 (CA)
Inventor: LAMM GUNTHER
IPC: C07D271/06
Filed: 1995-07-13
Abstract: L'invention concerne des colorants nitrés de la formule (I) dans laquelle X?1¿ et X?2¿ désignent hydrogène, alkyle C¿1?-C¿6?, alcoxy C¿1?-C¿6? ou pyrrolidin-2-on-1-yle X?3¿ désigne hydrogène ou alkyle C¿1?-C¿6? et X?4¿ désigne un reste de la formule (a), (b) ou (c), où R?1¿ désigne hydrogène, alkyle C¿1?-C¿12? éventuellement substitué, cycloalkyle C¿3?-C¿7? éventuellement substitué ou phényle éventuellement substitué, R?2¿ et R?3¿ désignent hydrogène, alkyle C¿1?-C¿6? ou alcoxy C¿1?-C¿6?, R?4¿ désigne hydrogène, méthyle, éthyle, méthoxy ou éthoxy et R?5¿ désigne hydrogène ou alkyle C¿1?-C¿6?. L'invention concerne des procédés permettant de les préparer et leur utilisation pour teinter ou imprimer des matériaux textiles.
Patent CA-2196017-A1 (CA)
Inventor: KAWAGUCHI TADAHARU
IPC: G06F7/483
Filed: 1997-01-27
Abstract: A floating point addition and subtraction circuit comprises a comparison subtraction circuit receiving two operands to be processed for making a comparison in the size between their exponent parts so to subtract the smaller exponent part from the larger one, said comparison subtraction circuit providing the comparison result and the subtraction result; a mantissa selecting circuit and a shift circuit for aligning the mantissa of the operand; a leading zero counting circuit for counting the number of zeros successively positioned in the high order direction from the least significant bit of the mantissa of the operand having the smaller operand; a comparator circuit for making a comparison between the counting result and the subtraction result by the comparison subtraction circuit, thereby to detect a sticky bit according to the comparison result; and an absolute value addition and subtraction arithmetic circuit, receiving the mantissas of the two operands having been aligned and the detected sticky bit, for performing addition or subtraction operation on operand.
Patent CA-2196728-A1 (CA)
Title: Actuator driven slewing mechanism for timber processing workhead
Inventor: WILDEY ALLAN J
IPC: B66C1/68
Filed: 1997-02-04
Abstract: There is provided a slewing assembly for a timber handling apparatus of the type having a workhead connected to a support structure.  The workhead is rotatable about a slew axis with respect to the support structure.  The assembly provides a slewing mechanism for relative rotational movement of the workhead and the support structure about the slew axis. The assembly also provides a drive mechanism for imparting the relative rotational movement of the workhead and the support structure.  The drive mechanism comprises two actuators, each actuator having a fixed end and a moveable end, the moveable ends of the actuators being linearly extendible and retractable with respect to the fixed ends of the actuators along an actuating axis.  One end of each actuator is rotatably attached to the workhead and the other end of each actuator is rotatably attached to the support structure.  Each actuator is positioned to apply a force to the slewing mechanism at a point radially distant from the slew axis upon extension and retraction of the moveable end of the actuator with respect to the fixed end of the actuator.  This causes the relative rotational movement of the workhead and the support structure.  The actuators are each positioned such that the actuating axes associated therewith do not all intersect the slew axis at the same time during the relative rotational movement of the workhead and the support structure.
Patent CA-2197199-A1 (CA)
Inventor: WILBY MARK
IPC: H04Q3/00
Filed: 1995-08-09
Abstract: Data elements stored in a distributed data structure are accessible by means of a hierarchical routing network in which routes through the network to individual data elements are flagged. The network comprises communicating links between nodes (1, 2, 3), extending from a "root node" (2) to a plurality of end nodes (3). The end nodes (3) contain the data elements. To find a data element, a search message entering the network at an end node (3) passes through the network towards the root node (2) until it encounters a flagged route to the relevant data element. Thereafter it passes along the route to the end node (3) containing the relevant data element. The invention is relevant to personal numbering services in a communications network. In this case, the data elements each comprise hardware addresses for users of the network. If a user moves in relation to the network, their hardware address will change and, in many cases, the relevant end node (3) will also change.  However, the flagged route consequently changes and the routing network therefore provides automatic tracking of the user.
Patent CA-2197741-A1 (CA)
Title: Fire Grate, in Particular for Waste Incinerators
Inventor: MARTIN JOHANNES JOSEF EDMUND
IPC: F23H17/00
Filed: 1997-02-17
Abstract: A fire grate has tensioning devices (3) inserted in recesses (2) of an oven wall (1), with each device acting upon one grate side plate. The tensioning device (3) includes a cylinder (4) inserted into the oven wall, a hollow piston (7) guided therein and a spring (26), which can be adjusted in its tension. The grate side plate has a carrying plate (12) directly fastened to the piston bottom (10) with a grate border plate (13) suspended, or hanging, on the carrying plate (12). The piston (7) has diameter and length dimensions such that it can support and guide the grate side plate without further guiding devices. Neighboring pistons (7) are connected flexibly to each other by guiding bars (36), so that the pistons (7) can influence each other reciprocally. An upper edge of the grate side plate, particularly the grate border plate (13), has a flange (17) extending toward the oven wall. The flange (17) sealingly engages an elastical seal (19), fastened onto the oven wall. An additional covering ledge (21) covers the flange (17) and includes a shaped part or angle (22) which bounds a hollow space (23) between these two parts, just like a labyrinth seal.
Patent CA-2198335-A1 (CA)
Title: Treatment of liquors
Inventor: HARRISON STEPHEN B
IPC: B01F5/04
Filed: 1997-02-24
Abstract: A process of removing carbon dioxide from a liquor in a vessel comprises the step of continuously passing a portion of the liquor into a sidestream and introducing discrete bubbles of between 0.005mm and 1.0mm diameter of nitrogen rich gas into the liquor before returning it to the vessel in which the nitrogen acts to adsorb carbon dioxide from the liquor and is then expelled from the liquor as an off-gas. The process also includes introducing a gas to be dissolved in the liquor into the sidestream as discrete bubbles having a diameter of between 0.005mm and 1.0mm.
Patent CA-2200477-A1 (CA)
Title: Teleconferencing method and system
Inventor: WILLIAMS HEROLD
IPC: H04M11/00
Filed: 1995-09-18
Abstract: A method and system (10) provides a face-to-face video conference utilizing a video mirror comprising a first station having a first predetermined sensory setting; a second station having a second predetermined sensory setting; and an imaging system for capturing an image or sub-image at the first station, displaying at least a portion of said image or sub-image at the second station. The imaging system includes a differentiator for generating a differential signal (101) in response to a comparison of a differential reference signal to an input signal generally corresponding to the image captured at the first station. The imaging system also include a compositor for compositing the differential signal with one or more other image signals and/or a predetermined composite signal to provide a composited video image (97) which appears visually contiguous and seamless.
Patent CA-2201813-A1 (CA)
Title: Flow control in asynchronous networks
Inventor: DAVIS TOM
IPC: H04L12/825
Filed: 1997-04-04
Abstract: In a method of controlling the flow of cells in an asynchronous network, cell flow in upstream and downstream portions of a virtual connection is controlled by respective upstream and downstream control loops employing resource management (RM) cells. The degree of backward coupling between the two control loops is adjusted to optimize network stability and response time by filtering the downstream Backward Explicit Rate or monitoring the degree of congestion at the boundary between the control loops.
Patent CA-2202838-A1 (CA)
Inventor: RATCLIFF KEITH
IPC: A61B17/00
Filed: 1997-04-16
Abstract: Apparatus and method for surgery is disclosed which includes a retractor having a substantially planar base defining an opening for overlying an operative site on a patient, and at least one retractor blade slidably mounted to the base. The base is positioned on the patient such that the opening therein overlies the operative site. The operative site is percutaneously accessed, and obstructing tissue is retracted by engaging the tissue with the retractor blade. A surgical instrument is provided which is engageable with the base and operable at the operative site through the opening in the base. A surgical procedure is carried out through the opening in the base with the surgical instrument.
Patent CA-2203079-A1 (CA)
Title: 2-phenyl-1-[4-(2-aminoethoxy)-benzyl]indoles as estrogenic agents
Inventor: MILLER CHRIS PAUL
IPC: C07D403/12
Filed: 1997-04-18
Abstract: The present invention relates to new 2-Phenyl-1-[4-(2-Aminoethyoxy)-Benzyl]-Indole compounds which are useful as estrogenic agents, as well as pharmaceutical compositions and methods of treatment utilizing these compounds. These compounds have a structure selected from the formulas I or II:    wherein the variables R1, R2, R3, R4, R5, R6, X, n, and Y are defined in the claims.
Patent CA-2203606-A1 (CA)
Inventor: WOOD JAMES A
IPC: B60T8/58
Filed: 1997-04-24
Abstract: A brake assurance module assures braking on at least one truck.          It includes a summer, a level circuit, a delay circuit, an emergency driver, a valve driver and a timer circuit.   The summer sums friction and dynamic braking signals into a total braking signal.  The level circuit generates a threshold signal when the total braking signal exceeds a threshold.  The delay circuit generates a level signal after having received the threshold signal throughout a preset time.  When the emergency driver receives an emergency signal,  it conveys  a detect signal.   The valve driver controls contacts each in series within a control line used to energize a valve whose operation is normally controlled by the brake control system.  The valve driver when activated closes the contacts thereby permitting the system to control the valves.  When deactivated, the valve driver  opens  them  thereby  preventing  the  system  from controlling the valves.  The timer circuit has set, trigger and reset inputs.  When the set input receives the level and zero speed signals simultaneously, the timer circuit activates the valve driver thereby placing the module in a standby mode.  The timer circuit monitors the trigger input for the detect and full service signals in response to which it becomes enabled.          If  the  reset  input  receives  the  level  signal  within  a predetermined time after the timer circuit enables then the timer circuit resets thereby keeping the module in the standby mode.   Otherwise, the timer circuit deactivates the valve driver thereby placing the module in an intervention mode.
Patent CA-2206780-A1 (CA)
Inventor: HASELDEN GEOFFREY GORDON
IPC: F25B9/00
Filed: 1995-12-20
Abstract: L'invention concerne des échangeurs thermiques à plaques (4, 6) permettant de faire varier les proportions relatives de réfrigérant liquide et de vapeur de réfrigérant, pour que le réfrigérant dans les deux phases reste en équilibre durant tout le transit dans l'échangeur thermique (4, 6). Le trajet d'écoulement peut être agencé pour avoir une configuration boustrophédonique, avec un premier jeu et un second jeu de sous-canaux alternés et parallèles (36, 38, 46, 48), où la résistance à l'écoulement du réfrigérant liquide dans chacun des sous-canaux du premier jeu (38, 48) est supérieure à la résistance à l'écoulement dans les sous-canaux respectifs adjacents du second jeu (36, 46). La configuration du canal pour le réfrigérant dans l'échangeur thermique (4, 6) peut être choisie de manière à ce que la résistance à l'écoulement du réfrigérant soit plus élevée à une extrémité qu'à l'autre. On peut obtenir ce résultat en conférant à une ou à plusieurs plaques un profil de surface (14) tel que la résistance à l'écoulement du fluide d'échange thermique dans le canal soit plus élevée dans une région (18, 20) de la longueur du canal que dans une autre région (16, 22).
Patent CA-2206887-A1 (CA)
Title: Device for displaying moving images in the background of a stage
Inventor: MAASS UWE
IPC: G03B21/28
Filed: 1996-08-31
Abstract: An article such as for example a motor vehicle at a publicity function is to be represented in front of different viewers (38) in the background of a stage (28) in the form of a virtual image (26). A presenter (40) is to stand in the image and give explanations. Disposed above the stage (28) is an image source (12, 14). It projects an image, a film, on to a reflecting surface (18) on the floor (30) of the stage (28). Behind that reflecting surface (18) a transparent smooth foil (20) extends at 45° from the ceiling (32) to the floor (30). The image produced by the image source (12, 14) appears to the viewers (38) as a virtual image (26) behind the foil (20). The presenter (40) stands behind the foil (20) and in the middle of the image.
Patent CA-2209074-A1 (CA)
Inventor: GELARDI JOHN A
IPC: G02B30/27
Filed: 1995-12-12
Abstract: Des systèmes de présentation (100) d'images ont des caractéristiques mécaniques et optiques qui permettent de les configurer aisément en différents modes de présentation dans toute une palette d'environnements esthétiques ou commerciaux. Ces systèmes conservent dans tous leurs modes leur capacité de présenter des images multiples (118, 120). Les systèmes de présentation (100) représentent une solution alternative et une amélioration d'autres types de présentation tels que les cadres standard d'images (en bois, plastique ou métal), les pin's, les boutons, les insignes ou les cartes (par exemple cartes de base-ball, souvenirs, etc.).
Patent CA-2209926-A1 (CA)
Title: Waterborne (meth)acrylic latex polymers for release
Inventor: URQUIOLA MARIA B
IPC: C08F2/16
Filed: 1995-12-20
Abstract: A waterborne latex polymer composition having latex particles comprising (1) about 25 to about 75 weight percent of a first monomer, wherein the first monomer is at least one free-radically polymerizable long chain alkyl (meth)acrylate monomer; (2) about 75 to about 25 wt.% of a second monomer, wherein the second monomer is a short alkyl chain (meth)acrylate monomer, wherein the alkyl group contains less than about 12 carbon atoms and the second monomer may be a mixture comprising: i) none, one or more (meth)acrylic acid monmers; ii) none, one or more vinyl nitrile monomers; and iii) none, one or more (meth)acrylic ester monomers, with the provisio that the second monomer mixture comprises at least one of (meth)acrylic acid monomer, vinyl nitrile monomer, and (meth)acrylic ester monomer and a method of making the latex particles.
Patent CA-2210205-A1 (CA)
Inventor: AL GHATTA HUSSAIN
IPC: C08G63/80
Filed: 1997-07-11
Abstract: Process for the crystallization of aromatic polyester resins having IV between 0,5  and 0.7 dl/g wherein the resin is extruded in the form of a strand at extruder exit or the chips  obtained  by  cutting  the  strand  are  crystallized maintaining them at temperature between 160~C and 220~C for sufficient time to obtain a crystallized product wherein  the DSC  curves  do  not show  the  presence  of  practically  any premelt peaks.
Patent CA-2210716-A1 (CA)
Inventor: GABA RODOLFO
IPC: A61M5/31
Filed: 1996-01-22
Abstract: Il est question d'un cathéter de sûreté (222) qui comprend une came pivotante (256) et une rondelle de serrement (264) se trouvant dans un boîtier. Lorsque l'aiguille du cathéter est retirée du cathéter, la pointe de l'aiguille (214) est saisie et immobilisée dans le boîtier, ce qui réduit le risque de blessures avec aiguille. Lorsque la came est verrouillée, elle empêche la pointe de l'aiguille de sortir à l'extrémité inférieure du boîtier, et la rondelle de serrement empêche l'aiguille d'être retirée par l'extrémité supérieure du boîtier. La pointe aiguë de l'aiguille est automatiquement recouverte et logée dans le boîtier dès qu'elle est retirée du cathéter, de façon à ne pas présenter un danger. Un mécanisme de retenue (246) fixe le cathéter au boîtier jusqu'à ce que la pointe de l'aiguille soit protégée par le boîtier, de sorte que le cathéter ne peut pas être utilisé avant que la pointe de l'aiguille ne soit isolée.