baber/WOPTO huggingface dataset:
Patent CA-2010213-A1 (CA)
Title: Method and arrangement for bit synchronization in a receiver for digital data transmission
Inventor: GELIN BENOIT
IPC: H04L7/033
Filed: 1990-02-16
Abstract: PHF 89.511                                                 15.01.1990 ABSTRACT   Method and arrangement for bit synchronization in a receiver for digital data transmission.            The received short-length packets of bit pulses are first converted into normalized 1 or 0 samples at the rate nFb, where Fb is the bit rate and n a small even integer. The method further comprises, for each )sub)-packet of M bits, the following steps: a) storing the normalized samples according to a sequence matrix [B]    having (n+1) row-sequences B1, ..., BA+1 and M columns; b) determining and storing a transition column matrix [T] having n rows obtained by adding modulo-2 pairs of adjacent sequences B1, ..., Bn+1; c) calculating two barycentre numbers m1 and m2 for the upper and lower half of the matrix [T]; d) calculating a barycentre number m of matrix [T] derived from numbers m1 and m2 and matrix [T] or matrix [T] robated cyclically by half the number of rows (n/2), depending on whether m2-m1 is smaller than n/2 or not. e, f) calculating an integer j=(m'-n/2) modulo-n, where m' is the nearest integer to number m ; g) choosing the sequence Bj as the optimum sequence representative of the M-bit (sub)-packet in question.
Patent CA-2010708-A1 (CA)
IPC: H01L31/042
Filed: 1990-02-22
Abstract: ABSTRACT        A solar collector constituted by a roof-shaped structure  serving  as  a  support  for  front  and  rear panels.   The panels are elongated rectangular panels having  the  same  dimensions  as  the  faces  of  the structure on which various solar energy collectors are mounted, and whose top longitudinal edges are hinged to a common rotation axis coinciding with the ridge line of the structure.  Combined with a support, this roof-shaped structure forms an assembly which, by means of appropriate  mechanisms,  can  move  about  a  vertical rotation axis.   The solar collector is also provided with two different  orientation  systems.    The  first system operates  in  azimuth,  and enables  the  moving assembly to rotate about its vertical axis with its plane  solar collectors  facing the  sun.   The  second system operates in elevation and enables the front and back panels to rotate about their common horizontal axis and keep the same inclinations normal to the sun's rays.   This second orientation system constitutes the main improvement brought by the present invention to this solar collector device.
Patent CA-2012012-A1 (CA)
Inventor: NIKSA MARILYN J
IPC: H01M10/50
Filed: 1990-03-13
Abstract: PRIMARY ALUMINUM-AIR BATTERY                ABSTRACT OF THE DISCLOSURE   An aqueous electrolyte aluminum-air battery comprises one or more cells, each cell comprising a frame which defines an electrolyte chamber.  The frame is made of a rigid material inactive to the electrolyte.  The cell has a consumable  aluminum anode and an air cathode spaced from the anode by said electrolyte chamber.  Means are provided for admitting electrolyte solution into the electrolyte chamber.  A vent exposes the electrolyte chamber to atmosphere.  A hydrophobic membrane which is impermeable to the passage of electrolyte but permeable to the passage of hydrogen closes the vent.  A surface of each cell anode is exposed to the flow of air.  The amount of surface exposed is effective to dissipate heat generated at the anode.
Patent CA-2013581-A1 (CA)
Title: Dna sequence originated from toxoplasma gondii and protein encoded by said dna sequence
Inventor: MATSUURA TADASHI
IPC: G01N33/569
Filed: 1990-04-02
Abstract: ABSTRACT OF THE DISCLOSURE       A DNA sequence coding for an antigenic protein originated from and specific to Toxoplasma. gondii and an antigenic protein and its amino acid sequence encoded by the DNA sequence.     The antigenic protein is capable of undergoing a specific immune reaction with an anti-Toxoplasma gondii antiserum.      The antigenic protein is produced in a recombinant host cell by means of recombinant DNA technology, and the antigenic protein thus prepared contains substantially no other proteins originated from Toxoplasma gondii.
Patent CA-2014898-A1 (CA)
Inventor: SHENG-JUNG WU
IPC: G07B17/00
Filed: 1990-04-19
Abstract: An improved digital mark-printer operated under control of a microprocessor and control program. A main shaft including a printing head with a plurality of numeral wheels is driven by drive circuits and the position of the shaft and wheels are sensed by sensor circuits, all under control of the microprocessor.
Patent CA-2015073-A1 (CA)
IPC: B66F7/08
Filed: 1990-04-20
Abstract: Title:  Plate for adjusting the wheels of a vehicle Inventor:  Robert Curran Abstract for Disclosure A plate, for use in adjusting the rear wheels of a four wheel vehicle incorporating all wheel steering has an elongate sheet-form bearing cage, which includes a plurality of apertures. Ball bearings or other rolling elements are located in the apertures, and a top sheet member is located on top o f the ball bearings.    In use,  the ball  bearings  are  supported on a horizontal planar surface, for example a support platform of a hydraulic  lift  or  a  separate  base  sheet  member.    The configuration of the cage and the bearings is such that the top sheet member is capable of  limited  lateral  and rotational movement in a horizontal plane, to permit full adjustment of rear wheels of a vehicle having a steering capacity.
Patent CA-2017854-A1 (CA)
Title: Automated fault insertion in electronic circuit board
Inventor: GUPTA AMITABHA
IPC: G01R35/00
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE     A fault insertion device is interfaced to an integrated circuit through an interface connector capable of isolating sockets in a circuit board from pins on an integrated circuit.  The respective pins and sockets of the interface connector are connected to a fault insertion device containing switches effective for simulating a plurality of faults at selected ones of the pins and socket.  Following the setup of each simulated fault, self-test software, under development, is run to determine whether the known inserted fault is correctly detected, incorrectly detected, or missed.
Patent CA-2018824-A1 (CA)
Title: Use of kojic acid for treating pigmentation diseases
Inventor: MISHIMA YUTAKA
IPC: A61K8/00
Filed: 1990-06-12
Abstract: There are provided compositions containing kojic acid as an effective ingredient which are extremely effective for the treatment of pigmentation such as endogenous chloasma, senile moles, sunlight-induced moles, pigmented spots after inflammation, etc., which have been heretofore difficult to cure and aggravation of which causes serious conditions. No side effects are observed in administrating and, therefore, the compositions of the present invention are quite safe and effective medicaments.
Patent CA-2022421-A1 (CA)
Title: Accessory device for angle grinder
Inventor: WOLFF ROBERT
IPC: B24B23/03
Filed: 1990-08-01
Abstract: TRANSLATION     New Case 364.28987X00 ACCESSORY DEVICE FOR ANGLE GRINDER     A B S T R A C T     Accessory devices are known for angle grinders (1) exhibiting in each case an eccentric unit (5) and a resilient coupling means (17) for the toolholder (16) whereby an oscillating, elliptical path of movement is imparted to the toolholder in the operating range.         An accessory device has been created according to this invention, in order to lower the manufacturing costs and for more convenient handling, which is sub-divided into a module comprising the eccentric unit (5) and the coupling means (17) and into the toolholder (16) proper, in such a way that the toolholder (16) can be exchanged by itself.
Patent CA-2023554-A1 (CA)
Title: Synthesis of low molecular weight ethylene and propylene glycol ethers via olefin addition to the corresponding glycol
Inventor: KNIFTON JOHN F
IPC: C07C43/13
Filed: 1990-08-17
Abstract: SYNTHESIS OF LOW MOLECULAR WEIGHT ETHYLENE   AND PROPYLENE GLYCOL ETHERS VIA OLEFIN  ADDITION To THE CORRESPONDING GLYCOL             (D#80,865-F) ABSTRACT OF THE DISCLOSURE         Disclosed is a process for preparation of monoalkyl ethers by reacting low molecular weight olefins and the corresponding glycols in the presence of a catalyst comprising an acidic montmorillonite clay, generally represented by the equation:              CLK pg:EX9R/11
Patent CA-2023694-A1 (CA)
Inventor: PORTER BENNY R
IPC: B23P6/00
Filed: 1990-08-21
Abstract: A method and apparatus is disclosed for use in a hydraulic assembly (1) for purposes of repairing and resurfacing of turbine liner walls (8) pitted as a result of cavitation and the like. The method includes rotation of turbine blades (6) and a turbine shaft (2) through a turning mechanism (18) positioned on a blade (6), so the turning forces are exerted directly between the turning mechanism and the surface of the liner wall (8). The method and apparatus further includes the use of a repair assembly (16) mounted to the turbine blades (6) for selectively positioning a grinding mechanism (104) adjacent the liner wall (8) for grinding and sanding the same. The grinder mechanism (104) includes components for selectively adjusting horizontal and vertical positioning of the mechanism (104). The horizontal and vertical positioning components can also be employed with other mechanisms for performing repairing and resurfacing operations.
Patent CA-2024060-A1 (CA)
Title: Method and apparatus for catheter exchange by guide wire captivation
Inventor: KEITH PETER T
IPC: A61M25/01
Filed: 1990-08-27
Abstract: An apparatus for exchanging over-the-wire balloon catheters engages a guide wire within a guide catheter. In one embodiment the engagement is by an inflatable balloon in the guide catheter.      Alternatively, the engagement is accomplished by. a captivation wire in the guide catheter that has a collapsible loop portion through which the guide wire extends. Inflation of the balloon or closing the loop portion of the captivation wire within the guide catheter traps the guide wire and restricts its movement relative to the guide catheter. Once the guide wire position is fixed, withdrawal of a first balloon catheter and subsequent introduction of a second balloon catheter over the guide wire is possible without moving the guide wire longitudinally.      Thus, the positioning of the guide wire over a stenosis to be dilated is not disturbed.
Patent CA-2025018-A1 (CA)
Title: Compositions containing thymopentin for topical treatment of skin disorders
Inventor: AUDHYA TAPAN
IPC: A61K38/00
Filed: 1990-01-10
Abstract: A composition for use in the topical treatment of skin disorders, such as dermatitis or poison ivy, which comprises an effective amount of thymopentin and a suitable carrier is provided. A method for treating skin disorders and a method for making a topical composition are disclosed.
Patent CA-2028075-A1 (CA)
Title: Toolbox and tray assembly
Inventor: BRIGHTBILL KEITH
IPC: B25H3/06
Filed: 1990-10-19
Abstract: ABSTRACT           The subject invention comprises a tool tray having top and bottom surfaces, with side walls extending upwardly from the bottom surface to the top surface.  An intermediately disposed handle extends upwardly between the side walls of the tray, and has a horizontal gripping portion and supportive end portions.  A profile passageway is also provided to extend through the bottom surface of the tray in commumincation with the hand opening, whereby upon stacking positionment of the bottom surface of one of the trays upon the top surface of a substanially like configured second trays the handle gripping portion of the second tray projects through the profiled passageway of the first tray into close underlying proximity with the handle gripping portion of the first tray.  So positioned, the handle gripping portions nest and can be simultaneously lifted from the confines of a toolbox in single handed fashion.
Patent CA-2029460-A1 (CA)
Title: Viscosity reduction of high viscosity fluid flame retardants for polyurethanes
Inventor: FESMAN GERALD
IPC: C08K5/06
Filed: 1990-11-07
Abstract: Triphenyl phosphate can be used to reduce the viscosity of fluid flame retardants (polybrominated aryl oxides, oligomeric phosphate esters, etc.) which are useful in flame retarding polyurethane compositions.
Patent CA-2029469-A1 (CA)
IPC: A61B5/296
Filed: 1990-11-07
Abstract: An   electrode  endotracheal   tube  for   detecting electromyographic  signals  in  the  laryngeal  muscles  and comprising electrode wires running in a direction parallel to the central axis of the endotracheal tube.   Each wire is insulated from electrical contact along a first portion of its  length  and  is  exposed along  a  second portion.   The exposed portion is at a location on the tube which permits the exposed portion to contact the adjacent laryngeal muscles when the endotracheal tube is inserted into the trachea.
Patent CA-2029553-A1 (CA)
Title: Shrink fit implosion protection band
Inventor: SWANK HARRY R
IPC: H01J29/87
Filed: 1990-11-08
Abstract: Abstract An improved shrink fit implosion protection band for a CRT faceplate panel includes an angle .THETA. extending the full circumference of the band. The angle overlays the panel mold match line and ensures that both edges of the band contact the faceplate after the band has shrunk into position.
Patent CA-2033651-A1 (CA)
Inventor: MUELLNER GRAZYNA E
IPC: H04W88/02
Filed: 1991-01-04
Abstract: A controller (105) for a radiotelephone (100) having the capability of operation in both a secure mode for call authorization and a nonsecure mode for user interface is disclosed. The nonsecure mode and secure mode of operation are both resident in a single microcontroller (201) which runs the nonsecure operations until a requirement for the secure operation is requested during call placement. The nonsecure mode is disabled during the period of time the secure mode is operational and is reenabled upon completion of the secure mode operation. The secure mode cannot be accessed externally to the microcontroller (201). <IMAGE>
Patent CA-2033785-A1 (CA)
Title: Two-stage transfer bar lift arm
Inventor: JONES JOEL W
IPC: B23Q7/00
Filed: 1991-01-08
Abstract: ABSTRACT A two-stage lift arm for raising a transfer bar used in a multi-station machining assembly includes a central pivot at which it is mounted for rotation in a vertical plane about a horizontal axis, a-primary lift roller spaced a first distance from the central pivot location, a secondary lift roller spaced a second distance from the central pivot location, the second distance being greater than the first distance, and means for positively rotating the lift arm between a first position in which only the primary lift roller contacts the transfer bar, a second position in which both rollers contact the transfer bar, and a third position in which only the second lift roller contacts the transfer bar.
Patent CA-2034596-A1 (CA)
Title: Benzoquinone antiallergy and antiinflammatory agents
Inventor: IKEDA TAKAFUMI
IPC: C07D307/14
Filed: 1991-01-18
Abstract: ABSTRACT OF THE DISCLOSURE          A series of 2-amino-5,6-dimethyl-1,4-benzoquinone derivatives, of the formula:                                  (I) [wherein R1 is H, alkyl, cycloalkyl, phenylalkyl, acyl or CH(OZ)R8 (where R8 is H, alkyl, carboxyalkyl or alkoxycarbonyl-alkyl and Z is H or methoxyethoxymethyl);         R2 is H or phenyl; and R3 is cycloalkyl, cycloalkylalkyl, a group   (where m is 0 to 3 and R5 and R6 are possible substituents) or R7 alkyl (where R7 is hydroxyl, carboxyl, alkoxycarbonyl, hydroxy-alkoxy or furyl) or R2 and R3 together with the adjacent nitrogen atom form             are inhibitors of cyclooxygenase and lipoxy-genase and are useful as antiallergic and antiinflammatory agents.
Patent CA-2036593-A1 (CA)
Title: Detergent composition
Inventor: RABONE KENNETH L
IPC: C11D1/825
Filed: 1991-02-19
Abstract: DETERGENT COMPOSITION     The invention comprises liquid, non-aqueous compositions comprising: liquid nonionic surfactant in an amount of 25 to 75% by weight; having suspended therein 20 to 75% of solid particulate material with a surface weighted mean particle size in the range 1 to 100µ which comprises a combination of i)        from 5 to 72% by weight of one or more salts which form hydrate(s) stable at 20°C but are present in an anhydrous or incompletely hydrated state, together with ii)       from 3 to 70% by weight of one or more salts which has no stable hydrate at 20°C.         The combination of hydratable and non-hydratable salts enhances suspending properties while inhibiting excess gelling.
Patent CA-2036669-A1 (CA)
Title: Staurosporine fermentation process
Inventor: SCHROEDER DANIEL R
IPC: C12R1/465
Filed: 1991-02-19
Abstract: Abstract A fermentation process for preparing staurosporine, a known antibiotic, employing a heretofore unknown microorganism is described, said microorganism being classified as a novel strain of Streptomyces hygroscopicus and being herein designated Streptomyces hygroscopicus strain C39280-450-9 (ATCC 53730).
Patent CA-2039258-A1 (CA)
Title: 4-phenylphthalazine derivatives
Inventor: IWASE NORIMICHI
IPC: C07D237/34
Filed: 1991-03-27
Abstract: Abstract of the Disclosure: 4-Phenylphthalazine derivatives of the formula:            wherein R1 is an alkyl or hydroxyalkyl group of 1-5 carbon atoms; R2 is a hydrogen atom or an alkyl group of 1 5 carbon atoms; or R1 and R2, when taken together, may represent an alkylene group of 2-6 carbon atoms, said group optionally containing one or more oxygen atoms; R3 and R4 are independently a hydrogen or halogen atom, an alkyl or alkoxy group of 1-4 carbon atoms, or when two of R3 are adjacently positioned, (R3)? may represent a -0-(CH2)p-0- group and/or when two of R4 are adjacently positioned, (R4)m may represent a -0-(CH2)p-0- group; R5 is a hydrogen or halogen atom, an alkyl or alkoxy group of 1-4 carbon atoms, a trifluoromethyl group or a hydroxy group, or when two of R5 are adjacently positioned, (R5)n may represent a -0-(CH2)p-0- group; p is an integer of 1-3; ? and m are independently an }nteger of 1-2; and n is an integer of 1-3, and optical isomers and pharmaceutically acceptable acid addition salts thereof.
Patent CA-2039932-A1 (CA)
Title: Flexible energy transport to multiple fans
Inventor: KALETSCH REINHOLD
IPC: F04D17/08
Filed: 1991-04-08
Abstract: ABSTRACT          For applications where an airflow extended over a greater length in a direction more or less vertical to that length is needed, the air is either transported from a central fan in a duct and then directed through outlets located in that duct, or the air movement is created by centrifugal or tangential fans which are mounted and thus driven by rigid axles, which run along or within  a  boom. The first solution wastes a lot of energy, while the second is cumbersome, rigid and vulnerable. In this invention the energy is transported and distributed over the given length by flexible means like belts to a row of individual fans.
Patent CA-2042584-A1 (CA)
Title: .alpha., .beta.-unsaturated nitrile manufacturing apparatus
Inventor: MUROYA HIROAKI
IPC: B01J8/18
Filed: 1990-10-04
Abstract: ABSTRACT           An .alpha.,.beta.-unsaturated nitrile manufacturing apparatus for manufacturing an .alpha.,.beta.-unsaturated nitrile having the same number of carbons as in a starting material which is an olefin or tertiary butyl alcohol by causing propylene, isobutylene or tertiary butyl alcohol, and ammonia and oxygen containing air to be reacted, comprising:           a reactor; a "material gas" feeder horizontally disposed at the lower portion of said reactor and having a plurality of "material gas" blowoff nozzles disposed on the lower surface thereof; and an oxygen containing gas feeder disposed at a lower portion of said "material gas" feeder in parallel therewith, spaced apart therefrom at a predetermined interval and having oxygen containing gas blowoff pipes disposed on the upper surface of said oxygen containing gas feeder in opposing relation with said "material gas" blowoff nozzles, the number of said oxygen containing gas blowoff pipes being the same as that of said "material gas" blowoff nozzles provided on said "material gas" feeder;           wherein said predetermined interval is 25 to 300 mm as measured by the respective intervals between said nozzles and said pipes; and the intervals between said oxygen containing gas blowoff pipes are 90 to 250 mm, and the number of said pipes is 16 to 120 pieces/m2 in the cross sectional area of said reactor.
Patent CA-2045005-A1 (CA)
Title: Atmospheric diffuser improved lower screens backflushing
Inventor: PHILLIPS JOSEPH R
IPC: D21D1/40
Filed: 1991-06-19
Abstract: ABSTRACT       In an atmospheric diffuser for the treatment of paper pulp (thickening, bleaching, and/or washing) the flow of backflushing liquid is controlled 80 as to maximize the effective treatment of the pulp.  The pulp passes upwardly in a vessel.  A number of annular screen assemblies are provided, with at least one screen associated with each screen assembly.  The lower screen includes a barrier wall with a passage in the barrier wall adjacent the bottom end of the screen.  Liquid which flows through the screen must flow to the passage in order to be withdrawn from the vessel, as the screen is slowly moved upwardly.  When the screen is rapidly moved downwardly to cause backflushing, the backflushing liquid at the top end of the screen is liquid that recently passed through the screen at that point, so the pulp at that point -- which is the cleanest along the length of the screen -- has a minimal chance of being contaminated.  The barrier may be provided by a number of tubes separated by webs, or a number of channels separated by webs.  A baffle may be mounted between each passage and screen to redirect the backflushing liquid so that it does not merely backflush the bottom portion of the screen.
Patent CA-2047133-A1 (CA)
Title: Mecanisme de chasse a commande par bouton-poussoir et a flotteur submersible
Inventor: POURCIER MICHEL
IPC: E03D1/14
Filed: 1991-07-16
Abstract: Le mécanisme de chasse à commande par bouton-poussoir et à flotteur submersible pour réservoir de chasse d'eau, est du genre qui comprend notamment un équipage mobile comprenant un clapet d'obturation de l'orifice de vidange, installé à la partie inférieure d'un tube de surverse dont la portion inférieure est agencée pour constituer un flotteur; un dispositif de soulavement du clapet comprenant un bouton-poussoir, une tige de transmission, et un organe de soulevement du clapet, fixé à l'extrémité inférieure de la tige de transmission. Selon l'invention, le flotteur est équipé d'un obturateur mobile axialement et pouvant être plaqué contre son siège constitué par le bord de l'orifice inférieure du tube de surverse, sous la poussée de l'organe de soulèvement du clapet ou sous la pression de l'eau s'évacuant du réservoir, ou éloigné du siège sous l'impulsion d'un organe de poussée solidaire de la tige de transmission, de manière à permettre une entrée d'eau dans le flotteur et la retombée de celui-ci.