baber/WOPTO huggingface dataset:
Patent CA-2123871-A1 (CA)
Inventor: DADEL MARTIN R
IPC: B60T1/087
Filed: 1994-05-18
Abstract: A retarder control  embodying the concepts of the present invention utilizes a spool valve means having a spool valve member axially translatable between an on- and an off-position. A spring means is employed to bias the spool valve member toward its off-position. A torque converter, a cooler and a retarder each have an input means and a discharge means that are ported through the spool valve means. The retarder is selectively ported to a hydraulic return means through the spool valve means, and a modulating solenoid may be employed to feed pressurized hydraulic fluid against the spool valve member not only to move the spool valve member against the spring means toward its on-position but also to regulate the axial translation of the spool valve member in order to control the pressure at the retarder discharge that is also ported through the spool valve means. A cooler communicates directly with the converter when the spool valve member is in its off-position To the contrary, the cooler communicates directly with the retarder when said spool valve member is in the opposition. First and a second reaction sub-chambers are disposed in opposition against the spool valve member. A spring means is received within the first reaction pressurized. A modulating solenoid effects continuous communication of pressurized hydraulic fluid to the second reaction sub-chamber when the spool valve member in its on-position, and a conduit selectively communicates pressurized hydraulic fluid to the first reaction chamber.
Patent CA-2129499-A1 (CA)
Title: Motor current status sensor
Inventor: JAMIESON J SCOTT
IPC: H02P23/00
Filed: 1994-08-04
Abstract: ABSTRACT   A method and circuit for establishing the operating status of a direct drive, multiple speed motor, the method including providing feedback to an air distribution system for indicating first whether the system motor is operating and secondly which speed winding has been selected, wherein the circuit senses the voltage differences between the speed windings of the motor and also between the first speed motor winding and the power supply, the voltage difference sensed by the circuit determining whether a light emitting diode (LED) illuminates, the illumination of the LED indicating to the system controller whether the motor is operating and the speed winding that has been selected, thus providing the necessary feedback to a controller of the air distribution system.
Patent CA-2131388-A1 (CA)
Title: A lubricant for chain conveyor belts and its use
Inventor: STROTHOFF WERNER
IPC: C10M173/02
Filed: 1993-02-22
Abstract: Chain conveyor lubricants, especially for the food industry, which form clear solutions in water and which contain in combination a) at least one compound corresponding to formula (I):   (see formula I) in which R1 is a saturated or mono- or polyunsaturated, linear or branched alkyl group containing 6 to 22 carbon atoms, which may optionally be sub-stituted by an -OH, -NH2, -NH-, -CO-, halogen or a carboxyl group, R2 is a carboxyl group containing 2 to 7 carbon atoms, M is hydrogen, alkali metal, ammonium, an alkyl group containing 1 to 4 carbon atoms or a benzyl group, and n is an integer of 1 to 6; b) at least one organic carboxylic acid selected from monobasic or polybasic, saturated or mono- or polyunsaturated carboxylic acids containing 2 to 22 carbon atoms; and, optionally, c) at least one of water, additives, and auxiliaries.
Patent CA-2131792-A1 (CA)
Title: Preparation of optically active hydrazines and amines
Inventor: BURK MARK JOSEPH
IPC: C07F9/6568
Filed: 1993-03-17
Abstract: A process for the asymmetric hydrogenation of N-acylhydrazones to optically active N-acylhydrazines in the presence of a chiral phospholane catalyst complex, a process for the reductive N-N bond cleavage of N-acylhydrazine to amines with samarium diiodide, and a multistep process for converting keto group-bearing compounds to the corresponding optically active amino group-bearing compounds are disclosed.
Patent CA-2135903-A1 (CA)
Title: Multifunctional surgical instrument
Inventor: BOUDREAULT YVON
IPC: A61M1/00
Filed: 1993-05-18
Abstract: A multifunctional surgical instrument for use in laparoscopic surgery, including a rigid hollow tube, or trocar (50), mount ed on a pistol-grip shaped holder inside of which a disposable connector assembly, or cartridge (20), consisting of valves (21) and tubes (33, 32) fort connection to a source of vacuum and a source of fluid is removably mounted. The instrument is structurally simple and easy to use, having been designed to allow fast and easy interchange of tubes some of which have built in electrodes or fiber optics. It can be use through a cannula, for irrigation or suction of physiological matter. for, suction, of gas or vapors, and for electrocautery, laparoscopy or laser surgery.
Patent CA-2136163-A1 (CA)
Title: Technology incorporated into a pad containing the audible 'back-up' to any instructions, statements, warnings, legends, expressions, advertisements presently provided in the printed form
Inventor: DONOVAN MICHAEL L
IPC: H04R3/00
Filed: 1994-11-18
Abstract: A technology designed  to  incorporate  tiny  'voice  chips' into units  requiring  on-the-spot  emergency  instructions.  The chip will have the means to electronically generate an audible message that  would  announce  the  operating  instructions of said unit, thereby eliminating the need for  the  instructions  to  be read.          This  technology   is  incorporated   into  and  presented  as  a convenient PAD, which is then  attached  to  the  compatible user unit. The  user will  simply press  the pad containing the 'voice chip' and then listen to the  instructions.    This  pad  will be highly reliable and economically  manufacturable.  Any practical instructions,   statements,   warnings,   legends,   expressions, advertisements  presently  provided  in  the  printed form can be recorded and made audibly accesible via the pad.
Patent CA-2137864-A1 (CA)
Title: An installation for the reprofiling of tracks carried out on a railway line
Inventor: JAEGGI JEAN-PIERRE
IPC: E01B31/17
Filed: 1994-12-12
Abstract: The reprofiling installation includes, arranged below a railway carriage, a milling device consisting of two frames linked together. These frames of differing lengths and guided by the track, carry each one a milling unit . The installation further includes track heating means located in front of each milling unit means for cooling the tracks behind each milling unit, as well as units for measuring the deformation of the track.
Patent CA-2138076-A1 (CA)
Title: Monopolar electrosurgical instruments
Inventor: EGGERS PHILIP E
IPC: A61B18/14
Filed: 1994-12-14
Abstract: A monopolar electrosurgical instrument for utilization with endoscopic and laparoscopic surgical procedures. The instrument is structured so as to substantially eliminate the adverse effects occasioned by capacitive coupling between the instrument and tissue adjacent thereto within the body being operated upon. Capacitive coupling is controlled through the implementation of the shaft structure itself with an electrically insulative polymeric material of low dielectric constant which is combined with a current conductor centrally disposed therein which is of minimum diameter effective to carry requisite current to a working tip. A shield arrangement may be provided such as a coextruded electrically conductive wire mesh surmounting the internally disposed electrical conductor. This shield, in one embodiment may be coupled with return ground employing electrical connectors which assure proper coupling with source and ground.
Patent CA-2138994-A1 (CA)
Inventor: RANNESTAD PER-GUNNAR
IPC: D21H23/56
Filed: 1993-07-06
Abstract: The invention relates to a paper colouring apparatus for especially water colours or water-based inks, wherein a driven running paper web (1) is positioned around a turning roller (2) constituting the counter pressure roller for an inker (3) and, together with the latter, are included in a roller train (4) adapted to convey ink (8) from a reservoir (9) to the inker (3). One has aimed at transferring ink to the paper (1) in so small amounts that after-drying of the paper (1) becomes unnecessary. According to the invention, said roller train (4) is adapted to be driven by means of the running paper web (1) and comprises five or more rollers (2, 3, 5, 6, 7).
Patent CA-2139157-A1 (CA)
Title: Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets
Inventor: KISHIMOTO YOSHIHISA
IPC: H01F1/057
Filed: 1994-12-28
Abstract: To a fine R-Fe-B alloy powder comprised predominantly of 10 - 30 atomic % of R (wherein R stands for at least one elements selected from rare earth elements including yttrium), 2 - 28 atomic % of B, and 65 - 82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01% - 2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder.  The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged.  Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.
Patent CA-2139306-A1 (CA)
Inventor: PANNETIER CHRISTOPHE
IPC: C12Q1/68
Filed: 1993-07-02
Abstract: A method for determining the nucleotide size of DNA fragments separated by gel electrophoresis, comprising the steps of (i) measuring the migration time of each detected DNA fragment, and (ii) correlating the size of each detected DNA fragment with its migration time.
Patent CA-2140439-A1 (CA)
Title: Trunked communication system with automatic repeater talk-around
Inventor: DIAZ RAFAEL
IPC: H04W64/00
Filed: 1994-06-03
Abstract: A method to implement multiple talk-around communication links using the communication resources of one repeater. A system resource controller (13) determines whether talk-around is possible for any two communication units (11) intending to engage in a point-to-point communication link.      Assignment of a talk-around repeater (15) depends on the geographic locations of the two communication units, and a predetermined range criterion between them. In addition, the talk-around communication must not interfere with any existing talk-around communication already in the system. When talk-around communication is possible, an enabling communication grant is issued to the units, and the talk-around repeater's communication resources  are assigned to support the link. Otherwise, a repeater (16) for normal trunking is assigned.
Patent CA-2140510-A1 (CA)
Inventor: PARKER PAUL D
IPC: A01B15/04
Filed: 1995-01-18
Abstract: A long wearing deep tillage sweep includes a central point member having a leading tip and attached to a shank at an angle to the horizontal of approximately 30 degrees.  A pair of wings having the shape of a parallelogram are fixed to the lower, forward portion of the point with the sides of the wings parallel to the forward direction of travel and with the leading and trailing edges extending outwardly from the member and parallel to the surface of the ground when the shank is in the normal field-working position.  The top surface of the wings has a shallower angle than the point surface, which, together with the horizontal leading and trailing wing edges, reduces soil disturbance.  The wings are closely adjacent the tip of the point member so that the angle of the resultant force on the sweep closely approximates that of a straight point alone and the depth of tillage is more consistent than tools having wings offset a greater distance from the leading tip.  The leading portions of the wings are hardened, and the wings and point include upwardly and rearwardly directed rear walls which provide a self-sharpening effect as the leading edges wear.
Patent CA-2141843-A1 (CA)
Title: Method of preparing optically pure precursors of paroxetine
Inventor: ZEPP CHARLES M
IPC: C07D211/22
Filed: 1993-08-05
Abstract: A biocatalytic method of preparing optically pure precursors of paroxetine and a method of preparing paroxetine therefrom are disclosed. A racemic trans ester precursor compound of paroxetine is first prepared. The racemic trans ester precursor compound comprises a mixture of (3S, 4R) and (3R, 4S) enantiomers. The (3R, 4S) enantiomer is hydrolyzed biocatalytically to the corresponding (3R, 4S)-trans carboxylic acid or alternatively, the (3S, 4R) enantiomer is biocatalytically hydrolyzed to the (3S, 4R)-trans carboxylic acid in a reaction catalyzed by an isolated enzyme or a microorganism. In the first instance, the unhydrolyzed (3S, 4R) enantiomer is separated from the (3R, 4S)-trans carboxylic acid, whereas in the second instance the (3S, 4R)-trans carboxylic acid is separated from the unhydrolyzed (3R, 4S) enantiomer. The (3S, 4R) enantiomer obtained following the selective hydrolysis is reduced to form a (-)-trans-(3S, 4R) primary alcohol precursor of paroxetine. Paroxetine is then formed from the (-)-trans-(3S, 4R) primary alcohol precursor.
Patent CA-2141915-A1 (CA)
Title: Decorating Method and Products
Inventor: KAMEN MELVIN E
IPC: C09D11/10
Filed: 1995-02-06
Abstract: d) Radiation-curable polymer composition, for use in a method for decorating substrates with hot-stamping foil, which composition comprises 10 90% (preferably 35 - 90%) of a radiation-curable cycloaliphatic epoxide, 1 - 20% (preferably 3 - 15%) of an ester-containing polyol, preferably with a molecular weight less than 850 and viscosity less than 60 Pa.s, e.g. a polycaprolactone polyol, and 1 - 20% (preferably 3 - 15%) of a defoaming agent e.g. polyvinylbutylether. The composition preferably contains an adhesion-promoter, e.g. 1 - 10% of a silane; and/or when the composition is to be cured by actinic radiation it also desirably comprises a photoinitiator, e.g. 0.5 - 20% (preferably 3 to 15%) of a carbonyl compound and/or a photosensitive onium salt. It may comprise 1 - 50% of pigment.
Patent CA-2144035-A1 (CA)
Title: Removal of organics from aqueous solutions
Inventor: MACDOUGALL BARRY R
IPC: C02F1/461
Filed: 1995-03-03
Abstract: A process is described for electrochemically "collecting" certain organic  compounds  from  aqueous  solutions  in  an immobilized and concentrated manner conducive to subsequent destruction.  The method is applicable for organic compounds amenable to electrochemical coupling, e.g. by condensation. The method  involves the electrochemical reaction of the organic  compounds  to  form  substantially water  insoluble coupling products in the form of deposits or films on the working electrode surface.  This method has the advantage of greatly concentrating and immobilizing the organic compounds on the surface of the working electrode.  The immobilization of the organics allows the material to be transferred to a different environment or allows the environment to be changed to facilitate destruction of the organics.  This advantage, along with the high "local" concentration of the organic material on the electrode's surface, allows various methods of post treatment or destruction to be carried out, which would not be possible or would not be as efficient if carried out directly on the initial dilute waste water.
Patent CA-2145829-A1 (CA)
Title: Method and apparatus for producing a retaining net
Inventor: EICHER BERNHARD
IPC: B21F27/02
Filed: 1995-03-29
Abstract: A retaining net is made of wire rings which are interlooped when producing at least some of the rings while other rings that participate in the interlooping are prefabricated.  Such nets are used for protection against falling rocks, avalanches, and mud slides.  The interlooping rings are formed by feeding a wire (22) through a bending tool (15) to form several turns that interloop with at least two prefabricated rings (20A, 20B) that are held by suspender members (31) so that the rings (20 being formed extend crosswise to the prefabricated rings.  When the formation of a first row of interlooped rings is completed, that row is interlooped with a second row and so forth.  The interlooped ring structure provides a simple, cost effective construction method for strong retaining nets.
Patent CA-2147199-A1 (CA)
Inventor: DE ZEN VITTORIO
IPC: E05F15/665
Filed: 1995-04-18
Abstract: Hinge member extrusions for use in forming a hinge connection, each member having a front wall and a rear wall and presenting at one edge a generally C-shaped socket formation, the socket formation having a first part circular edge wall segment extending arcuately inwardly of the edge of the front wall to adjacent the rear wall and being connected thereto, and a second part circular arm segment connected to an end of the first part circular wall segment by a web extending inwardly of the first part circular wall segment, the first and second part circular segments having a common center with the radius of the inner surface of the first part circular wall segment being slightly greater than the radius of the outer surface of the second part circular arm segment. Two such hinge members are required in forming a hinge formation to receive a pintle, one of the hinge members has its part circular arm segment connected to its part circular wall segment at the end adjacent the rear wall. The other has its part circular arm section connected to its partcircular wall segment at the end at the edge of the front wall. The invention also includes folding doors or the like employing the aforesaid hinge members.
Patent CA-2147244-A1 (CA)
Title: Improved ozone bleaching
Inventor: SOLINAS MARCO
IPC: D21C9/153
Filed: 1993-10-07
Abstract: A bleached pulp having a high viscosity for a given permanganate number is formed by pretreating never dried pulp with an organic solvent medium to produce a treated pulp composed of said never dried pulp in the medium and then bleaching that treated pulp using ozone at a pH of 1.5-5 to provide a bleached pulp while reducing the viscosity loss during the ozone bleaching step significantly compared to that what would occur if the medium used in the ozone bleaching were water.
Patent CA-2149399-A1 (CA)
Title: Self-stable lattices and the molecular weight control thereof
Inventor: HUYBRECHTS JOZEF
IPC: C08F290/04
Filed: 1995-05-15
Abstract: A graft copolymer characterized by carboxylic-acid or amine functional macromonomers attached at a terminal end thereof to a polymeric backbone, wherein the functional groups have been neutralized, which graft copolymer was prepared in the presence of an oligomeric acrylic chain transfer agent to control the molecular weight of the graft copolymer. Such graft copolymers are useful in high performance coatings and paints.
Patent CA-2150952-A1 (CA)
Title: A glazing bar
Inventor: SHEATH GARY
IPC: E06B3/99
Filed: 1993-12-06
Abstract: An interlocked grid structure includes one glazing bar (13) extending between and perpendicular to an aligned pair of shorter glazing bars (14A, 14B) which abut it. Each glazing bar (13, 14a, 14b) comprises a T-section which is formed by a hollow metal extrusion (16) and a plastics extrusion (17) which are interlocked, and by a plastics cap which is formed by a double beading (15) and which is snap-fitted onto a head portion (18) of the metal extrusion (16) which forms the stem of the T-section and which is load bearing. The plastics extrusion (17) forms the base of the T and provides a seat for a pane of glazing material on either side of the stem. A locating metal plate (32) is embedded in the adjacent ends of the shorter bars (14A, 14B) to which it is fixed and extends through a lateral aperture in the load bearing stem portion (16) of the glazing bar (13) to locate the shorter bars (14A, 14B) relative to the glazing bar (13).
Patent CA-2152940-A1 (CA)
Title: A Method of Producing 1,1,1,3,3-Pentafluoropropane, a Method of Producing 1,1,1,3,3-Pentafluoro-2-Halogeno-3-Chloropropane, and a Method of Producing 1,1,1,2,3,3-Hexachloropropene
Inventor: TAKUBO SEIJI
IPC: C07C21/04
Filed: 1993-12-24
Abstract: There are provided production methods of 1,1,1,3, 3-pentafluoropropane characterized in that 1,1,1,3, 3-penta-fluoro-2,3-dichloropropane is reacted with hydrogen fluoride in the presence of a noble metal catalyst; of 1,1,1,3, 3-pentafluoro-2-halogeno-3-chloropropane characterized in that the halogenated propene indicated as general formula I is fluorinated in the presence of antimony trihalogenide and / or antimony pentahalogenide by hydrogen fluoride of mole ratio of or over five times the said antimony halogenide in a liquid phase; and of 1,1,1,2,3, 3-hexachloro-propene characterized in that 1,1,1,2,2,3, 3-heptachloro-propane is reacted with an aqueous solution of alkali metal hydroxide in the presence of a phase transfer catalyst.          Therefore, an industrial manufacturing method which is possible to obtain the objective product easily at low cost and high yield can be provided.
Patent CA-2154842-A1 (CA)
Title: Combo Grinder and Brewer
Inventor: FRIEDRICH BRENT R
IPC: A47J31/46
Filed: 1995-07-27
Abstract: A beverage brewing apparatus which includes a substance dispensing device and a brewing device. The brewing apparatus includes a receptacle for receiving a brewing substance from the substance dispensing device, a movable chute positioned between the substance dispensing device and the receptacle, and a water dispensing system operatively associated with the brewing device and selectively communicating with the receptacle for delivering water to a brewing substance retained therein. Additionally, a drive assembly is provided to operatively receptacle the water dispensing device relative to the receptacle. When the water dispensing device is positioned in communication with the receptacle, the chute is moved out of communication with the receptacle. When the water dispensing device is removed from communication with the receptacle, the chute is placed in communication with the receptacle. The present invention also includes a seal attached to the water dispensing device to seal the water dispensing device while dispensing water to prevent the escape of moisture from the water dispensing device. The apparatus includes a sensor for detecting when a funnel is not present for brewing a beverage or when the funnel has not been recharged and replaced after brewing a beverage and upon initiating a subsequent beverage brewing cycle .
Patent CA-2156418-A1 (CA)
Title: Process for isomerizing carboxylic acids
Inventor: DENIS PHILIPPE
IPC: C07C55/02
Filed: 1994-03-07
Abstract: A method for isomerising carboxylic acids and particularly branched acids into the corresponding straight acids. In particular, the method is for isomerising at least one branched saturated carboxylic acid by heating it in the presence of an effective amount of an iridium catalyst and an iodinated or brominated promoter, the promoter:Ir molar ratio being from 0.1:1 to 20:1. The method is particularly suitable for upgrading methyl-glutaric and ethyl-succinic acids into adipic acid.
Patent CA-2158448-A1 (CA)
Title: Print holder
Inventor: KENNEY RICHARD E H
IPC: A47G1/14
Filed: 1994-03-15
Abstract: A plastic print holder formed from molded plastic and preferably from pieces (11, 12) permanently united face to face, and defining a pocket (26) which will snugly receive a usually rectangular print. The pocket (26) has a long upper opening (28) through which a print may be introduced and a narrow lower opening (30) through which a knife blade, a stiff card or the like can be inserted to dislodge the print from the pocket (26). The print holder has considerable advantages of economy of manufacture     and provides improved protection of the card and is resistant to breakage as compared with the conventional print holders.