baber/WOPTO huggingface dataset:
Patent CA-2011846-A1 (CA)
Inventor: KESPER HEINRICH
IPC: B27B17/02
Filed: 1990-03-09
Abstract: A chain guiding rail for use in power chain saws has a tip part defining an accurate run-in section extending from an end point of a forward-run section to the vertex of the tip part, and a run-out section extending from the vertex point to a start point of a return-run section.  The run-out section has a substantially larger diameter and a tangential line at its center point forms an angle of 40° to 70° with a center axis of the rail.  To eliminate kickbacks during operation of the chain saw the vertex is situated in a sector of the tip part which is delimited by a reference line coinciding with the center axis or extending in parallel thereto, a perpendicular line relative to the forward-run section at the end point and to the parallel reference line or the center axis, and an arc whose center of curvature coincides with the point of intersection of the parallel reference line with the perpendicular line.
Patent CA-2013662-A1 (CA)
Title: Device for tensioning traction wires in orthopedic surgery
Inventor: MINGOZZI FRANCO
IPC: A61B17/84
Filed: 1990-04-02
Abstract: DEVICE FOR TENSIONING TRACTION WIRES IN ORTHOPEDIC SURGERY             ABSTRACT OF THE DISCLOSURE      The device for tensioning traction wires has a hollow body to which a pair of actuation levers is pivoted. A movable head is guided frontally in the hollow body and a slider is slidably mounted inside the hollow body and is adapted to be traversed by a traction wire.  A tension element is supported by the slider and provided with clamps for locking the traction wire. A lever system transmits to the slider the compression force exerted on the actuation levers, while an anchoring element rigidly associated with the hollow body is fitted on the slider, to which the lever system is pivoted. A movable locking element is adapted to keep constant the tension exerted by means of the actuation levers.
Patent CA-2013928-A1 (CA)
Title: Anti-blister circuit
Inventor: SENDELWECK GENE K
IPC: H04N5/59
Filed: 1990-04-05
Abstract: An anti-blister circuit comprises a first detector for detecting amplitude excursions of a signal with luminance information beyond a white level threshold during each horizontal scan. This enables the circuit to be more sensitive by responding to excursions occurring during each horizontal scanning line. A first timer, responsive to the first detector, provides a first control signal related to a minimum duration of each amplitude excursion of the signal beyond the threshold. This enables the circuit to avoid controlling beam current, for example by reducing contrast, responsive to signal peaks which are too short to cause blistering or warping. Finally, a switch and second timer, responsive to the first control signal, provide a second control signal which falls at a first rate to reduce beam current, for example by reducing contrast, during each minimum duration amplitude excursion; and, which rises at a second rate to permit the beam current to increase after termination of the amplitude excursion, until the next minimum duration excursion. The time constant for the second rate is much greater than the time constant of the first rate.
Patent CA-2014313-A1 (CA)
Inventor: SATO NAOKO
IPC: G05F1/45
Filed: 1990-04-10
Abstract: A gate pulse generator for a static var compensator (SVC) constituted by a thyristor switched capacitor (TSC) comprises voltage detectors for respectively detecting forward and reverse voltages applied to antiparallel-connected thyristors in the TSC.  The antiparallel-connected thyristors comprise a plurality of series-connected forward thyristors and a plurality of series-connected reverse thyristors.  The gate pulse generator monitors the forward and reverse voltages and determines whether a period in which both the forward and reverse voltages are zero continues for a pre-determined period while reverse-phase sides of the antiparallel-connected thyristors are held in conduction periods, respectively.  The gate pulse generator pro-longs an active period of a forward conduction period signal by the predetermined period.  Upon switching from in-phase conduction to revese-phase conduction, even if some of the plurality of series-connected thyristors are turned off, these thyristors are turned on again within the predetermined period, and an overvoltage is not applied to these thyristors.
Patent CA-2015336-A1 (CA)
Title: Imidazodiazepines for the treatment of neurological symptoms
Inventor: SCOLLO-LAVIZZARI GIUSEPPE
IPC: A61P25/28
Filed: 1990-04-24
Abstract: Abstract The known compounds of the general formula   I     wherein A together with the two carbon atoms denoted by .alpha. and .beta. signifies the group                              (a)            (b)        or          (c), R1 signifies halogen, cyano, lower alkyl. lower 1-alkenyl, lower alkoxymethyl or the group -COOR6 or -C?C-R7, R2 signifies hydrogen and R3 signifies lower alkyl or R2 and R3 together signify dimethylene or trimethylene, R4 and R5 each signify hydrogen, halogen, trifluoromethyl or lower alkyl, R6 signifies lower alkyl, C3-C7-cyclo-alkyl or C3-7-cycloalkyl-lower alkyl and R7 signifies hydrogen, lower alkyl, lower hydroxyalkyl.     lower alkoxyalkyl, C3-7-cycloalkyl-lower alkyl, C3-7-cycloalkyl-lower hydroxyalkyl, C3-7-cyclo-alkyl-lower alkoxyalkyl, (C3-7-cycloalkyl-lower alkoxy)-lowec alkyl, (aryl-lower alkoxy)-lower alkyl, lower alkanoyloxy-lower alkyl, (C3-7-cycloalkyl--lower alkanoyloxy)-lower alkyl, C3-7-cycloalkyl-carbonyloxy-lower alkyl, (aryl-lower alkanoyloxy)--lower alkyl, arylcarbonyloxy-lower alkyl, lower alkenyl, lower hydroxyalkenyl, lower alkoxy-lower alkenyl, (C3-7-cycloalkyl-lower alkoxy)-lower alkenyl, (aryl-lower alkoxy)-lower alkenyl, lower alkanoyloxy-lower alkenyl, (C3-7-cycloalkyl-lower alkanoyloxy)-lower alkenyl, C3-7-cycloalkylcarbonyl-oxy-lower alkenyl, (aryl-lower alkanoyloxy)-lower alkenyl, arylcarbonyloxy-lower alkenyl, C3-7-cyclo-alkyl, hydroxy-C4-7-cycloalkyl or lower alkoxy--C4-7-cycloalkyl, the compounds of formula I having the (S)- or (R,S)-configuration with respect to the carbon atom denoted by .gamma. when R2 and R3 together signify dimethylene or trimethylene, can be used in the treatment of neurological symptoms which are associated with circulatory disorders of the brain, especially in the treatment of neurological symptoms which are associated with cerebrovascular seizures.
Patent CA-2016639-A1 (CA)
Title: Sonet h4 byte generator
IPC: H04Q11/04
Filed: 1990-05-11
Abstract: An H4 byte generating algorithm is implemented by circuitry which includes counters for generating the H4 byte.  The circuit is provisioned to indicate whether it is operating in a terminal multiplexer mode or an add-drop multiplexer mode.  In the terminal multiplexer mode the counters are allowed to free run and continually produce successive H4 byte outputs.  In the add-drop multiplexer mode selected counter outputs are compared with the received H4 byte and the number of mismatches is accumulated by a mismatch counter.  When the mismatch counter reaches a predetermined number the value of the received H4 byte is loaded into the H4 byte counters and the mismatch counter is reset.  Each time a proper match between H4 counter outputs and the received H4 byte is sensed, the mismatch counter is reset to 0.  The presence of a red alarm will also result in the resetting of the mismatch counter and free running of the H4 byte counters.
Patent CA-2016643-A1 (CA)
Title: Parallel bit detection of frame synchronization information in a serial bit stream
Inventor: STEPHENSON WILLIAM H JR
IPC: H04J3/06
Filed: 1990-05-11
Abstract: A parallel frame synchronization circuit converts an incoming serial bit stream containing frame synchronization information into parallel data words on arbitrary boundaries of fixed bit length.  Detectors forming part of the present invention determine from the parallel converted data the presence of synchronization information so as to align the incoming serial data into parallel data aligned on frame boundaries by manipulating parallel words.  The present invention is particularly suited for fabrication in complimentary metal oxide silicon (CMOS) technology and in a preferred embodiment is used to synchronize incoming data comporting to the synchronous optical network (SONET) telecommunication standard.
Patent CA-2018563-A1 (CA)
Inventor: EFFLAND RICHARD C
IPC: A61K31/7042
Filed: 1990-06-08
Abstract: This invention relates to a N-heteroaryl-purin-6-amine of the formula (see formula I), where R1 is hydrogen, lower alkyl, and arylloweralkyl; R2 and R3 are independently hydrogen, lower alkyl or R2 and R3 taken together are aryl;      R4 and R5 are independently hydrogen, lower alkyl, or R4 and R5 taken together are aryl; R6 is hydrogen, lower alkyl, aryl, arylloweralkyl, (see formula II), and (see formula III), where R2, R3, R4 and R5 are as defined above, and the pharmaceutically acceptable acid addition salts thereof sand where applicable the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as analgesic and anticonvulsant agents.
Patent CA-2019708-A1 (CA)
Title: Process and apparatus for the removal of undesired components from aqueous feedstocks
Inventor: PERRY MORDECHAI
IPC: B01D61/58
Filed: 1990-06-22
Abstract: ABSTRACT An efficient process and system for the removal of at least one organic acid from aqueous feed streams.
Patent CA-2021712-A1 (CA)
Title: Optical current transformer
Inventor: KAWAGUCHI TOSHIYUKI
IPC: G01R15/24
Filed: 1990-07-20
Abstract: An optical current transformer particularly useful for a fault location system for power supply system and substation including a casing which can be detachably secured to a plurality of wire conductors which conduct currents of the same phase, within the casing a plurality of Rogowsky coils being arranged such that when the casing is secured to the wire conductors, each Rogowsky coils are wound around respective wire conductors.  The Rogowsky coils are connected in series with an air-core coil and an optical current sensor having a Faraday element is arranged within a space of the coil such that the Faraday element is subjected to a magnetic flux generated by the coil.  A magnitude of the magnetic flux is optical detected by the Faraday element to measure a total sum of currents conducting along the wire conductors.
Patent CA-2022194-A1 (CA)
Title: 1,4-dihydropyridine derivative, process for preparing the same and pharmaceutical composition containing the same
Inventor: NAKANISHI MICHIO
IPC: C07D211/90
Filed: 1990-07-27
Abstract: Abstract of the Disclosure A 1,4-dihydropyridine derivative having the formula (I):                             (I) wherein X is oxygen atom or nitrogen atom; when X is oxygen atom, R1 is hydrogen atom, a lower alkyl group, a lower cycloalkyl group, a lower alkenyl group or magnesium atom, when X is nitrogen atom, X-R1 group is NH2, NHR1, NR1'R1'' or   in which R1' is a lower alkyl group or a lower alkoxyalkyl group, R1'' is a lower alkyl group and n is an integer of 2 to 6; R2 is a lower alkyl group, a lower cycloalkyl group or a lower alkoxyalkyl group and R3 is a lower alkyl group, formyl group, dimethoxymethyl group, cyano group or amino group, when X is oxygen atom and R1 is hydrogen atom or magnesium atom, R3 is methyl group, when X is nitrogen atom, R3 is methyl group, or a pharmaceutically acceptable salt thereof, some processes for preparing the same and a pharmaceutical composition containing the same.  According to the present invention, a superior cerebral function improver can be provided.
Patent CA-2023686-A1 (CA)
Inventor: HALE JAMES A
IPC: B65F1/06
Filed: 1990-08-21
Abstract: A drum assembly for the collection and disposal of hazardous waste includes an enclosure with an access hole for collecting the waste.  After the waste has been collected, the drum is opened and an insert is positioned to cover the access hole.  The drum is then closed to form a sealed container.
Patent CA-2023722-A1 (CA)
Title: Copolymers containing secondary amino groups and a process for their production
Inventor: BLUM HARALD
IPC: C08F8/32
Filed: 1990-08-21
Abstract: Mo-3465 LeA 27,142 COPOLYMERS CONTAINING SECONDARY AMINO GROUPS      AND A PROCESS FOR THEIR PRODUCTION                    ABSTRACT OF THE DISCLOSURE The present invention relates to copolymers prepared from olefinically unsaturated compounds, having a molecular weight (Mn) of 600 to 20,000 and containing 0.1 to 6.0% by weight of secondary amino groups, -NH-, in the form of structural units corresponding to formula I                                                         (I)   wherein R1   is a saturated aliphatic hydrocarbon radical containing 2 to 6 carbon atoms, provided that at least two carbon atoms are arranged between the two nitrogen atoms, and R2   is a methyl, ethyl or 2-hydroxyethyl group.     The present invention also relates to a process for the production of these copolymers.
Patent CA-2024447-A1 (CA)
Title: Method and tools for forming sheet metal
Inventor: WARNER RICHARD L
IPC: B25B33/00
Filed: 1990-08-31
Abstract: ABSTRACT            The present invention concerns a method and tools for forming sheet metal, and in particular, a method for making a chase top from a stock rectangular piece of sheet metal. Creasing tools are described that each have a handle member and a creasing wheel suspended therefrom cooperates with a support lip to form first and second crease lines and first and second flange areas along each perimeter edge of the workpiece. A reinforcing ridge tool is shown having a handle member with a wheel rotatively suspended therefrom is used to indent the sheet metal along desired lines inwardly of the crease lines to form reinforcing ridges. A bending tool is described having cooperating bending members for clamping the workpiece along each second crease line for bending the workpiece there along to from vertical wall portions.
Patent CA-2028119-A1 (CA)
Inventor: YAMAUCHI HIROSHI
IPC: C12P19/38
Filed: 1990-02-27
Abstract: This invention relates to a method of producing a nucleoside by reacting a base donor, a sugar residue donor, and a phosphate donor with one another in the presence of an enzymatic preparation containing a nucleoside phosphorylase to thereby form an N-glycoside linkage between a base portion of the base donor and a sugar residue portion of the sugar residue donor, characterized in that said enzymatic preparation containing a nucleoside phosphorylase is one based on the cells of at least one microorganism selected from among those belonging to thermophilic bacteria of the genus Bacillus and having a high nucleoside phosphorylase activity per unit weight of the cell.
Patent CA-2034056-A1 (CA)
Title: Electrochromic display device and method of producing it
Inventor: KIDAI MASAYUKI
IPC: G02F1/1524
Filed: 1991-01-11
Abstract: ABSTRACT             Disclosed is an all solid type electrochromic display device which comprises first and second conductive layers and sandwiched between them, at least, an electrochromic layer of tungsten oxide and a solid electrolyte layer.  The tungsten oxide of the electrochromic layer has an absorption spectrum, as measured by FT-IR, which meets the following formulae (A) and (B):                                (A)                            (B) wherein A1400, A1800, A2500, A4000 and A3400 respectively represent the absorbance of 1400cm-1, 1800cm-1, 2500cm-1, 4000cm-1 and 3400cm-1 and A* represents the highest absorbance within a range from 1600cm-1 to 1650cm-1.  The electrochromic display device is produced by vacuum depositing the tungsten oxide elec-trochromic layer on another layer, introducing oxygen as a reaction gas at a pressure of from 2 X 10-5 to 1 X 10-3 torr, at a deposition rate of from 0.2 to 0.4 nm/second and at a substrate surface temperature of from 20°C to 180°C.
Patent CA-2034292-A1 (CA)
Title: Condensed heterocyclic compounds, their production and use
Inventor: AKIMOTO HIROSHI
IPC: C07D495/04
Filed: 1991-01-16
Abstract: Abstract of the disclosure:      Novel compounds of the formula:                        wherein the ring A is a 5-membered ring, provided that, in the case where the ring A is a pyrrole or pyrroline ring, (i) the N atom in the ring has no active proton or (ii) the ring bonds to Z at the  -position  of the ring; B is a divalent cyclic or chain group which may be substituted; one of Q1 and Q2 is N, with the other being N or CH; Y is a hydrogen or halogen atom or a group which bonds to the bonding line with a carbon, nitrogen, oxygen or sulfur atom; X is an amino, hydroxyl or mercapto group; Z is a straight-chain divalent group having a number of atoms of 2 to 5 composed of carbon atoms which each may be substituted, or of carbon atoms which each may be substituted and one hetero atom which may be substituted; -COOR1 and -COOR2 each is the same as or different from the other and represents a carboxyl group which may be esterified or its salts are produced by reacting compounds of the formula,   wherein  A, B, Q1, Q2, X, Y, and Z are the same as defined above, with compounds of the formula,   wherein -COOR1 and -COOR2 are the same as defined above.     The compounds are useful as an antitumor agent.
Patent CA-2035642-A1 (CA)
Title: Candle or the like and method for the manufacture thereof
Inventor: SCHIRNEKER HANS-LUDWIG
IPC: F21S13/12
Filed: 1991-02-04
Abstract: ABSTRACT:      A candle is disclosed which comprises at least one body, which is composed of a material which is solid at room temperature such as wax or paraffin, and a wick.  The body which is composed of a combustible material which is solid at room temperature, has, at least at the bottom end, a part which can be plugged together or connected with a mating part of an identical body.  At the top end of the uppermost body, a tubular headpiece which surrounds said body is provided and is guided, at least at its bottom end, and moves downwards with the burning-down candle.
Patent CA-2038642-A1 (CA)
Inventor: SPERANZA GEORGE P
IPC: C08G69/36
Filed: 1991-03-19
Abstract: Novel modified nylon-6 may be produced by using a combination of one or more dicarboxylic acids and triethylene glycol diamine and tetraethylene glycol diamine, but not a diethylene glycol diamine. A dicarboxylic acid/polyethylene glycol diamine salt may be reacted with .epsilon.-caprolactam to provide the modified nylon-6. The diamines have the formula NH2-(CH2CH2O)x-CH2CH2-NH2, where x ranges from 2 to 3.    Surprisingly, the suitable diamines include triethylene glycol diamine (x = 2; JEFFAMINE R EDR-148 Amine) and tetraethylene glycol diamine (x = 3;      JEFFAMINE R EDR-192 Amine), but not closely related bis-aminoethyl ether (x = 1; BAEE). Unexpectedly, BAEE, which only differs from JEFFAMINE EDR-148 Amine by one -(CH2CH2O)- group, did not give satisfactory product ~ the fibers were too weak. The resulting modified nylon-6 polymers of the invention, however, including fibers therefrom, have improved water absorbancy properties and greater flexibility.      Polyamide products with a wide range of water adsorbancies may be obtained by adjusting the amount of amide.
Patent CA-2039763-A1 (CA)
Title: Combination of pravastatin and a fibric acid derivative, and method for treating dyslipidemia using such combination
Inventor: PAN HENRY Y
IPC: A61K31/365
Filed: 1991-04-04
Abstract: Abstract COMBINATION OF PRAVASTATIN AND A FIBRIC ACID      DERIVATIVE, AND METHOD FOR TREATING DYSLIPIDEMIA USING SUCH COMBINATION        A pharmaceutical combination is provided which includes pravastatin and a fibric acid derivative, such as fenofibrate, gemfibrozil or bezafibrate.  A method for treating dyslipidemia in non-diabetics and diabetics using the above combination is also provided.
Patent CA-2040459-A1 (CA)
Inventor: NAKATSUCHI YOSHIAKI
IPC: B25J9/18
Filed: 1991-04-15
Abstract: A velocity-variation minimization control method for robot  includes  the  steps  of  substituting  a  position vector for a start point, a velocity vector for the start point,  a position vector  for an end point,  a velocity vector for the end point, and a provisional movement time into equations that express the position and velocity of the robot as cubic functions with respect to time,  to obtain solutions for coefficients of the cubic functions; obtaining  a  sum  of  squares  of  differences  between  a velocity obtained  using  the  coefficients  and a  target velocity;  using  convergence  calculations  to  obtain  a value of  the movement  time  that minimizes  the  sum of squares; and controlling-said robot in such a manner that the far end of the robot follows a path based on the converged movement time.
Patent CA-2041768-A1 (CA)
Inventor: BERNER ERLING
IPC: F28D17/02
Filed: 1991-05-03
Abstract: ABSTRACT OF THE DISCLOSURE   An apparatus is provided which combines in a single, relatively compact housing the necessary components to efficiently exchange stale room air with fresh outside air.          The apparatus includes a single, continuous duct having openings at each end.  A heat storing matrix is disposed within the duct.  A fan is also placed within the duct.  The fan is capable of producing a substantially axial air flow through the duct.  The fan is moveable between two positions:  a first position wherein air flow is in a direction from the first end to the second end of the duct and a second position wherein air flow is reversed.  The apparatus includes means for moving the fan from the first position to the second position such as a solenoid.
Patent CA-2046056-A1 (CA)
Title: Easily assembled barbecue grill with pop-in front panel and detachable condiment rack
Inventor: RAYMER DOYLE
IPC: A47J37/07
Filed: 1991-07-02
Abstract: ABSTRACT    A decorative pop-in front panel provides the barbecue grill with a more finished appearance by hiding the fuel tank and its associated fuel lines.  The panel is installed and held in place without the need for tools or separate fasteners.  Pins secure the panel along the bottom edge and n detachable condiment rack holds the upper edge of the panel in place next to the control panel. The condiment rack is similarly installed without requiring tools or other fasteners by a bracket which allows the condiment rack to be hung and locked in place on the grill frame.
Patent CA-2046852-A1 (CA)
Inventor: YAMADA SHINICHI
IPC: A23L3/3436
Filed: 1991-07-11
Abstract: ABSTRACT OF THE DISCLOSURE     An oxygen scavenger comprises an oxygen absorbent composition and an oxygen permeable film covering the oxygen absorbent composition and including an asymmetric porous membrane whose outer surface portion in the thickness direction of the asymmetric porous membrane is formed as a dense skin layer.  Since the dense skin layer is very thin, the oxygen permeability to the oxygen absorbent composition through the oxygen permeable film can be maintained sufficiently high.  At the same time, since the dense skin layer has a sufficiently high barrier property as well as a high oxygen permeability, contact of the substances stored in a container with the oxygen absorbent composition can be surely prevented.  The substances stored in the container attached with the oxygen scavenger can be prevented from deterioration due to the oxygen present in the container by a high oxygen absorption ability of the scavenger, and maintained in a good or fresh condition for a long term.