baber/WOPTO huggingface dataset:
Patent CA-2124271-A1 (CA)
Title: Process for preparing and purifying alpha-interferon
Inventor: HAUPTMANN RUDOLF
IPC: C07K14/555
Filed: 1994-05-25
Abstract: Abstract The invention relates to a new process for preparing recombinant IFN-.alpha..  Expression in E. coli is carried out under the control of a phoA promotor.  By linking the IFN-.alpha. gene with the STII signal sequence, the secretion of the protein into the periplasmic space and a correctly processed N-terminus are obtained. Purification of the protein is carried out by adsorption chromatography on silica gel, hydrophobic interaction chromatography, cation and anion exchange chromatography.
Patent CA-2125154-A1 (CA)
Title: Security system for electrical and electronic equipment
Inventor: GILHOONEY PAUL C
IPC: G08B25/06
Filed: 1992-12-03
Abstract: In a security system for electrical and electronic equipment, each item of equipment has a security unit (10) coupled to its mains power input and storing an identity code unique to that item, and each mains power outlet socket (14) includes a security unit storing an identity code unique to that socket. A central computer (30) is powered from the mains and is arranged to poll the security units (10) of the items of equipment over the mains: the polled security unit (10) signals back an acknowledgement which is detected by the security unit of the associated mains socket (14), causing the latter security unit to signal back its identity code.
Patent CA-2126088-A1 (CA)
Title: Fat depth measuring apparatus
Inventor: LAKE ROYDEN JAMES WILLIAM
IPC: G01B17/02
Filed: 1992-12-21
Abstract: A fat depth measuring apparatus and method for use in measuring in an animal (10) the depth of a fat layer (14) between hide (12) and muscle (16). An ultrasonic generator (25) generates ultrasonic pulses and an ultrasonic echo detector (25) generates echo signals (26) indicative of ultrasonic pulses received by the detector after reflection from boundaries or discontinuities (13, 15) within the tissues of the animal. Variable gain amplifier (35) amplifies the echo signals (26) and produces detector signals (38), Gain control means (40) varies the gain of the amplifier (35) to increase the probability of having exactly two detector signals (38) identifiable as arising from echoes from a hide/fat boundary (13) and a fat/muscle boundary (15). A fat depth determining means (47) receives the detector signals (38) and if they exceed primary threshold levels (39a, 39b) identifies the two required detector signals (38a, 38b) so as to thereby enable determination of the depth of the fat layer (14). If more than three detector signals have levels exceeding 60 % of the threshold level (39), the depth determination is considered invalid.
Patent CA-2127098-A1 (CA)
Title: Polishing Method, Device and Buff Wheel Therefor
Inventor: KAWASAKI SHUJI
IPC: B24B29/00
Filed: 1993-10-29
Abstract: The invention provides a polishing device comprising a work with a surface to be polished, and buff wheels rotated by suitable means, for polishingthe work arranged to be capable of rotating about an axis in the center of the surface to be polished by the buff wheels characterized in that the buff wheels are provided in a pair, one of the buff wheels is rotated in the direction same with the rotating direction of the work and brought into contact with the surface of the work to be polished while the other one of the buff wheels is rotated in the direction opposite the rotating direction of the work and brought into contact with the surface of the work to be polished.
Patent CA-2133215-A1 (CA)
Title: Optical fibre connector latching mechanism
Inventor: HULTERMANS ANTONIUS PETRUS COR
IPC: G02B6/38
Filed: 1994-03-30
Abstract: An optical fibre connector is shown comprising a jack (2) mounted to a mother board (100) and a plug (102) mounted to a daughter board (101). The plug (102) has a slidable insert (106) retained by thrust lances (150) against a shoulder (152) of the plug housing (104) such that the insert (106) can be inserted into a cavity (213) of the jack (2). Latches (291) of the jack (2) serve to latch onto ribs (128) of the plug insert (106) so as to butt a ferrule (116) of the plug against a female (12) of the jack resiliently together. Further insertion of the insert (106) into the jack causes ribs (248) to release the thrust lances (150) of the plug insert (107) such that the insert springs rearwards allowing the plug housing (104) to slide forwards without spring resistance, enabling absorption of a certain tolerance in the spacing between the daughter board (101) and the mother board (100).
Patent CA-2133548-A1 (CA)
Title: Snow blower attachment for lawnmower
Inventor: PHILLIPS ALFRED F
IPC: E01H5/04
Filed: 1994-10-03
Abstract: SNOW BLOWER ATTACHMENT FOR LAWNMOWERS          ABSTRACT OF THE DISCLOSURE         An  apparatus  for  clearing  snow  and  other particulate material  comprises one or a pair of  arms mounted for rotation within the housing of a conventional rotary lawnmower or equivalent, as a substitute for the conventional  grass-cutting  blade.    This  enables  the lawnmower to be used for clearing snow during the winter, when it cannot be used for cutting grass.  The rotatable arm comprises an elongated blade member having upper and lower vanes extending upwardly and downwardly respectively from the blade member.  The lower vanes act as knives to cut the snow or material to facilitate removal.  The lower vanes are inclined obliquely to the blade axis so as to direct material that is below the blade member inwardly towards the axis of rotation.  The upper vanes are inclined obliquely to a blade axis extending radially outwardly from the axis of rotation to direct material above the blade outwardly through a discharge opening of the housing. Inclination of the lower vanes with respect to the blade axis is in an opposite direction to the corresponding inclination of the adjacent upper vanes.
Patent CA-2134756-A1 (CA)
Title: Selectin variants
Inventor: ERBE DAVID V
IPC: A61P17/06
Filed: 1993-04-28
Abstract: 2134756 9322436 PCTABS00027 This invention concerns selectin variants having an amino acid alteration at a site or sites of a selectin lectin domain amino acid sequence within a region defined by binding sites recognized by blocking monoclonal antibodies to the corresponding selectin unaltered in the lectin domain. Nucleotide sequences encoding such variants, expression vectors containing such nucleotide sequences, and host cells transformed with such expression vectors are also within the scope of the invention.
Patent CA-2140544-A1 (CA)
Title: Valve seat for high temperature valve
Inventor: CHAMBERS JAMES F
IPC: F16K5/06
Filed: 1993-07-20
Abstract: Valve (10) such as a ball valve with a metal seat ring assembly (25) comprising an outer ring (27) seated in the valve body and an inner ring (28) seated in the outer ring (27). The outer ring (27) is formed with a lip (30) projecting inwardly and presenting a sealing surface for contact with the valve closure member (14).  The inner ring is formed with a lip (40) behind which is an annular groove (14) which permits flexing of such lip. The inner ring is seated within the outer ring. There is a small clearance between the lip and the outer ring which causes sealing between the closure member and the inner ring following by sealing between the closure member and the outer ring. The configuration and clearances of such lips is such that in initial closing the valve closure member contacts the lip of the inner ring causing it to flex and on final closing it contacts the lip of the outer ring causing it to flex.
Patent CA-2142309-A1 (CA)
Title: Method of increasing the spf rating and compounds suitable for increasing the spf rating of fibre or fabric
Inventor: THOMPSON BERNARD L
IPC: C07D303/34
Filed: 1993-08-12
Abstract: A method of increasing the SPF rating of a fibre or fabric, comprising the steps of providing a UVR absorber, applying the UVR absorber to a fabric having a density of less than 200 grams per square metre, whereby the UVR absorber is attached to the fibre and an application of less thant 3 % UVR absorber on weight of fibre produces an SPF rating of greater than 20 for the UVR absorber and fabric combination.
Patent CA-2145132-A1 (CA)
Inventor: DUCHATEAU ERIC
IPC: C03B5/235
Filed: 1995-03-21
Abstract: On utilise, pour la vitrification de produits susceptibles d'être polluants, un four équipé d'un dispositif de chauffage, avantageusement un brûleur, de préférence alimenté avec un combustible gazeux et de l'oxygène. On préchauffe le four avant d'y introduire le produit, et on arrête le dispositif de chauffage, ou on le met en veilleuse, pendant le temps où le produit est dans le four sous une forme où il peut émettre des poussières qui seraient entraînées par les fumées du four. On peut rétablir la pleine puissance du dispositif de chauffage quand le produit est entièrement transformé en une masse vitreuse, non susceptible de produire des poussières polluantes. Ce procédé réduit les émissions de fumées à une valeur telle qu'un traitement très simplifié soit seul nécessaire, ou même qu'on puisse se passer de traitement des fumées, et qui, en même temps, soit d'un prix de revient peu élevé.
Patent CA-2146264-A1 (CA)
Title: Device for carrying containers
Inventor: MIRET EMILI REQUENA
IPC: B65D67/02
Filed: 1993-10-04
Abstract: The bottle carrying device (11) has a base (16) and angled side walls (19, 20) with handle portions (23, 24) secured by panel (26). Cuts are made in the base (16) so as to form flaps (28) which are hingedly connect-ed to the side walls (19, 20). The flaps (28) together with edges (32) of cap holes (31) en-gage below the neck shoulder (15) of a bottle (12) to retain the bottle in the device (11).
Patent CA-2146277-A1 (CA)
Title: Apparatus and method for manufacturing gypsum board
Inventor: PHILLIPS JOHN L
IPC: B28B11/04
Filed: 1995-04-04
Abstract: Apparatus and method for producing gypsum board, com-prising apparatus for coating a cover sheet with a relative-ly high density gypsum slurry, apparatus for forming edge borders on the sheet with relatively high density gypsum slurry, and apparatus for forming a core on the coating and between the edge borders, the core comprising a relatively low density gypsum.  The apparatus for coating the sheet comprises a relatively soft pressure roll and a relatively hard coating roll, the two rolls being normally pressed together to form a nip between them and a sheet to be coated passing through the nip.  The pressure roll is below the sheet and the coating roll, and the axis of the pressure roll is offset from the axis of the coating roll in upstream direction of the movement of the sheet.  The pressure roll has a surface area which contacts and moves in the same direction as the sheet, and the coating roll has a surface area which contacts and moves in the opposite direction of the sheet.  A trough is formed between the upper side of the sheet and the coating roll, and a relatively high density gypsum is poured into the trough.  The rotating coating roll picks up a quantity of the slurry from the trough and wipes it onto the sheet to form a high density gypsum coating.
Patent CA-2146780-A1 (CA)
Title: Enantiomeric resolution
Inventor: MURRAY WILLIAM T
IPC: C07B57/00
Filed: 1993-10-05
Abstract: A process for obtaining a substantially pure enantiomer of an aryl-substituted aliphatic carboxylic acid is described. In this process, the aryl-substituted aliphatic carboxylic acid is reacted with an inorganic base in the presence of an organic base to sub-stantially enrich the precipitate in one of the enantiomers and an improved yield. Substantially pure, enantiomeric salt is separat-ed, leaving a mother liquor comprising the solvent and aryl-substituted aliphatic carboxylic acid enriched in the other enantiomer.
Patent CA-2147249-A1 (CA)
Title: Antimony separation process
Inventor: ANDERSON CORBY G
IPC: C01G30/00
Filed: 1993-10-14
Abstract: An antimony recovery process is disclosed in which antimony-containing material is leached in a solvent including elemental sulfur and a caustic to preferentially leach antimony. The antimony-contain-ing leach liquor from the leaching step is separated from the insoluble residue by filtration, and the antimony compounds in the separated leach liquor are crystallized to separate the antimony compounds from impurities which are left in solution in the leach liquor. The crystals are then redissolved and treated to create marketable anti-mony products of high purity, such as antimony metal, sodium hy-droxy antimonate, sodium antimonate, antimony pentoxide, and anti-mony pentasulfide. Alternatively, the crystallized antimony com-pounds comprising primarily sodium thioantimonate crystals may be recovered and sold without further treatment. Waste products may be treated with soluble iron compounds and lime to render the waste products safe for disposal.  Additionally, feed material having a high weight ratio of soluble arsenic to soluble antimony may be pretreated, if desired, to improve the purity of the recovered antimony products and to remove the arsenic for further treatment or disposal.
Patent CA-2151369-A1 (CA)
Title: Method and apparatus for bus access arbitration of nodes organized into acyclic token passing and alternatively propagating request to root node and grant signal to the child node
Inventor: OPRESCU FLORIN
IPC: G06F13/42
Filed: 1993-12-16
Abstract: A bus arbitration scheme is implemented in a system where an arbitrary assembly of nodes on a system bus have been resolved into an acyclic directed graph. The hierarchical arrangement of nodes has one node designated a root while all other nodes have established parent/child relationships with the nodes to which they are linked. Each node may have a plurality of connected child ports with a predetermined acknowledgment priority scheme established. Fair bus access arbitration provides for bus granting in a sequence corresponding to the predetermined port priorities allowing all nodes a turn on the bus. The root node may always assert its priority access status to gain bus access which is useful for accommodating a root node which requires isochronous data transfer. Alternatively, a token passing arbitration scheme may be implemented where the token for bus access is passed around the nodes according to the above-described predetermined port priority scheme. Preemptive bus initialization may be triggered by any node upon detection of a necessitating error or addition or removal of a connection to an existing node.
Patent CA-2151750-A1 (CA)
Title: Hepatic graft preservative composition and a method for viable preservation of the hepatic graft
Inventor: ISHIMURA YUZURU
IPC: A61K31/665
Filed: 1995-06-14
Abstract: This invention provides a hepatic graft preservative composition containing a phosphoric acid diester compound of the formula:       (wherein R1 and R2 are the same or different and each represents a hydrogen atom or a methyl group) or a pharmacologically acceptable salt thereof and a method for viable preservation of the hepatic graft using the above substance.    The hepatic graft preservative composition and hepatic graft preserving method of this invention inhibit hepatic microcirculation disturbance following cold storage-reperfusion of the liver to effectively prevent necrosis of hepatocytes and is, therefore, useful for the preservation of the hepatic graft.
Patent CA-2153769-A1 (CA)
Title: Apparatus and method for transferring and storing data from an arbitrarily large number of networked computer storage devices
Inventor: KULLICK STEVEN E
IPC: G06F11/14
Filed: 1994-01-19
Abstract: This invention provides a method and apparatus for storing on centralized mass storage devices archival data from multiple computers in a networked environment. In a networked computer system having a communication network interconnecting one or more computers and a storage unit, parallel processes are created to perform repeated backup operations for disks on computer devices on the communication network.  A storage unit may be a single storage device capable of executing a plurality of processes or one or more primary storage devices connected to one or more secondary storage devices.  The backup operations for a disk include a backup initialization which occurs when a primary storage device does not have a full index or a backup data file for a disk but a secondary storage device does. During a backup initialization, data from the files and directories on that disk along with an index entry for each file or directory are passed to the primary storage device which directly passes that information directly through to the secondary storage device. The index entries are incorporated into a full index and the data is incorporated into a backup data file. An index entry contains, among other information, the location of a file or directory on the disk, the date the file or directory was last modified and the location of the associated data in the backup data file.     During a backup cycle, the computer device is incrementally backed up to a primary storage device such that the primary storage device contains a full index with an entry for each file and directory on the disk and a backup data file for the disk with data for the files and directories which have been changed or created since the last backup to the secondary storage device occurred. When a specified, predetermined time or event occurs or the transfer is otherwise indicated, the primary storage device transfers the full index and the backup data file to the secondary storage device.
Patent CA-2154141-A1 (CA)
Title: Endothelin-antagonizing peptide
Inventor: YAMASAKI MOTOO
IPC: A61K38/12
Filed: 1995-07-18
Abstract: Disclosed is a peptide compound represented by the following formula (I):                                 (I) wherein X represents          or         (wherein Y represents hydroxy, lower alkoxy, benzyloxy, benzhydryloxy, or amino), and a pharmaceutically acceptable salt thereof.
Patent CA-2155941-A1 (CA)
Title: Preparation of mixtures of (r)- and (s)-2-(4-alkanoylphenoxy)- or (r)- and (s)-2-(4-aroylphenoxy)proprionic esters
Inventor: SIEGEL WOLFGANG
IPC: C07C67/343
Filed: 1994-05-26
Abstract: A mixture of (R) and (S)-2-(4-alkanoylphenoxy)- or (R)- and (S)-2-(4-aroylphenoxy)propionic esters (I), (R1 = aryl, alkyl, aralkyl; R2 = alkyl) with an enamtiometric excess of at least 90 % is prepared by reacting a mixture of (R) and (S) enantiomer of a 2-phenoxypropionic ester (II), in which the appropriate (R) or (S) isomer is present in excess, with a carboxylic acid derivative of the formula (III): R1-CO-X, (X = OH, halogen, R1COO or sulfonyloxy) in the presence of a Friedel-Crafts catalyst. The (R)- or (S)-2-(4-alkanoylphenoxy)propionic esters and (R)- or (S)-2-(4-hydroxyphenoxy)propionic esters are used for preparing crop protection agents and drugs.
Patent CA-2159990-A1 (CA)
Title: 2-,3-,4-,5-,6-,7-,8-,9-and/or 10-substituted dibenzoxazepine compounds, pharmaceutical compositions and methods of use
Inventor: CHANDRAKUMAR NIZAL SAMUEL
IPC: A61P29/00
Filed: 1994-04-07
Abstract: The present invention provides substituted dibenzoxazepine compounds of formula (1), which as useful as analgesic agents for the treatment of pain, and as prostaglandin-E2 antagonists for the treatment of prostaglandin-E2 mediated diseases, pharmaceutical compositions comprising a therapeutically-effective amount of a compound of formula (I) in combination with a pharmaceutically-acceptable carrier, a method for eliminating or ameliorating pain in an animal, and a method for treating prostaglandin-E2 mediated diseases in an animal, comprising administering a therapeutically-effective amount of a compound of formula (I) to the animal.
Patent CA-2163400-A1 (CA)
Title: Process for the preparation of organic pigments
Inventor: CAMPOS MARGOT
IPC: C09B48/00
Filed: 1995-11-21
Abstract: This invention relates to a process for the preparation of quinacridone pigments comprising (a) heating, at a temperature of about 80°C to about 145°C, a reaction mixture comprising (i) 2,5-dianilinoterephthalic acid or a 2,5-dianilinoterephthalic acid derivative having one or more substituents in at least one aniline ring, (ii) about 2 to about 10 parts by weight, relative to component (a)(i), of a dehydrating agent, and (iii) about 0.01 to about 10 percent by weight, relative to component (a)(i), of a salt other than an iron salt; (b) drowning the reaction mixture from step (a) by adding said reaction mixture to about 3 to about 15 parts by weight, relative to component (a)(i), of a liquid in which the pigment is substantially insoluble; (c) isolating the quinacridone pigment; and (d) optionally, conditioning the quinacridone pigment.
Patent CA-2164104-A1 (CA)
Inventor: HOOGLAND MARTIN
IPC: C12C1/18
Filed: 1994-06-02
Abstract: Les caractéristiques de céréales maltées peuvent être améliorées par un procédé consistant à ajouter des cultures starter aux céréales avant ou au cours du maltage des céréales. De telles cultures peuvent comprendre des moisissures, des levures et des bactéries. Les céréales auxquelles ces cultures starter peuvent être ajoutées comprennent le blé, l'orge, le seigle, le riz, le maïs et le sorgho. Les céréales maltées selon l'invention peuvent être utilisées dans l'industrie brassicole, la distillerie d'alcool et la fabrication du pain.
Patent CA-2167783-A1 (CA)
Title: Process for synthesizing substituted carbodiimides
Inventor: HUSSENET PATRICIA
IPC: C07C267/00
Filed: 1996-01-22
Abstract: Prepn. of a disubstituted carbodiimide (I) comprises phosgenating an N,N'-disubstituted urea deriv. (II) in an organic solvent and then adding ammonia, without having previously isolated the intermediate. Phosgenation involves treating a soln. or suspension of (II) in an organic solvent (pref. a dialkyl ether) with COCl2 over a period of at least 3 hrs. at 15-25 degrees C, then degassing the reaction mixt. with an inert gas or under reduced pressure, at 3-10 degrees C below the b.pt. of the solvent at atmospheric pressure, but not above 70 degrees C. (II) is pref. N,N'-dicyclohexylurea and the solvent is a dialkyl ether.
Patent CA-2168862-A1 (CA)
Title: Thread removal apparatus and method
Inventor: BAILEY THOMAS WILLIAM
IPC: B65B29/04
Filed: 1994-08-16
Abstract: A web (W) of sheet material intended to form individual tagged packets has surplus portions of a thread (S) extending along its length removed while the web is being advanced. After severing one end of each unwanted thread portion with a rotary cutter (2), the severed end is lifted by a wiper (10), and the lifted end is held away from the web by suction means (20) while it is detached by shearing means (22). The suction means (20) then remove the detached thread portion.
Patent CA-2171522-A1 (CA)
Title: Process for the preparation of a 2-substituted-3, 3-difluorofuran
Inventor: KJELL DOUGLAS PATTON
IPC: C07H19/06
Filed: 1996-03-11
Abstract: A process for the preparation of a 2-substituted-3,3-difluorofuran using diethyl ammonium sulfur trifluoride (DAST) and pyridine hydrogen fluoride. The process is particularly useful for producing a 2',2'-difluoronucleoside, particularly 1-(2',2'-difluoro-.beta.-D-arabinofuranosyl)cytosine (also known as 2'-deoxy-2',2'-difluorocytidine), a known antiviral and antitumor agent.