baber/WOPTO huggingface dataset:
Patent CA-2039261-A1 (CA)
Title: Telescopic double shield boring machine
Inventor: GRANDORI CARLO
IPC: E21D9/087
Filed: 1991-03-27
Abstract: IMPROVED TELESCOPIC DOUBLE SHIELD BORING MACHINE                    ABSTRACT The invention relates to a boring machine for digging tunnels in a wide variety of qualities of ground , of the type comprising a first front shield, con-twining the boring head, and the members for driving  the same, and a second shield,  fitted with posts or "grippers" for providing the anchorage necessary for the advancement of the boring machine, in which a third shield is provided, arranged between said first and said second shield, such that the  first shield overlaps partly with it and is able to slide axially with respect to the third shield itself and that the assembly first shield/third shield is able to vary its advancing direction with respect to the second shield; guide means being provided between said first and said third shield, which guide means allow these latter to perform a relative movement in the longi-tudinal axial direction only, and means being provided for advancing said first shield with respect to said third sh shield, as well as means for setting at an angle the assembly first shield/third shield with respect to said second shield.
Patent CA-2043933-A1 (CA)
Title: Scroll type fluid machinery
Inventor: HIRANO TAKAHISA
IPC: F04C18/02
Filed: 1991-06-05
Abstract: According to the present invention, there is provided a scroll type fluid machinery in which a pair of stationary scroll and revolving scroll having spiral ele-ments  set up at end plates thereof, respectively, are engaged with each other, and a high pressure fluid chamber is formed on the outside of the end plate of the stationary scroll, characterized in that a low pressure fluid chamber or an intermediate pressure fluid chamber is formed between the end plate of the stationary scroll and the high pressure fluid chamber.  As a result, the pressure of a low pressure fluid or an intermediate pressure fluid acts on the outside of the end plate of the stationary scroll.  Accordingly, there is such an effect that deformation of the end plate is prevented or reduced, and reliability of the fluid machinery may be improved.
Patent CA-2043978-A1 (CA)
Inventor: YOSHIDA YOSHIO
IPC: G11B7/135
Filed: 1991-06-06
Abstract: A polarization diffraction element comprising two diffraction gratings formed on both faces of a substrate respectively. Both the diffraction gratings have grating lines which are arranged at the same grating pitch, and whose directions mutually form a predetermined minute angle. The grating lines may also be arranged parallel to each other. In this case, the relationship between grating pitches D1, D2 of the respective diffraction gratings and the wavelength .lambda. of an incident light is expressed as:   0 < ¦ .lambda.(1/D1 - 1/D2)(1 - (.lambda./2D1)2) - (1/2) ¦ ~ 0.35; or 0 < ¦ .lambda.(1/D1 - 1/D2)(1 - (.lambda./D1 - .lambda./2D2)2) - (1/2) ¦ ~  0.35 In a polarization detector employing this polarization diffraction element, a single converging lens of a small effective diameter separates one polarization from another polarization and converges them separately on different photodetectors. Consequently, a still more compact and lightweight optical pickup can be manufactured.
Patent CA-2047333-A1 (CA)
Title: Catheter with needle guard
Inventor: DUCHARME LEONARD C
IPC: A61M25/06
Filed: 1991-07-18
Abstract: A catheter device is described with a safety needle guard that covers and protects the needle after use of the device. A sheath protects the user prior to introduction by locking against the needle housing. The device includes a semi-tubular needle housing containing a flash chamber with a hollow needle extending from the distal end of the flash chamber. A tubular needle guard concentrically fits and slides within the needle housing.      The needle guard has a longitudinal slot through which the mounting base of the flash chamber passes as the guard slides within the housing, and has an extension which makes its use more facile. The top of the semi-tubular housing is open so that a user may access the top of the tubular needle guard with a finger to urge the needle guard to an extended position from the distal end of the housing and in a surrounding position about the needle.      As the needle guard attains its fully extended position about the needle, it locks in place in the needle housing.
Patent CA-2048183-A1 (CA)
Title: High opacity solid marking composition
Inventor: DASHE STEPHEN P
IPC: C09D13/00
Filed: 1991-07-31
Abstract: ABSTRACT           A solid marking composition having an unexpected metallic sheen, a smooth, lipstick-like rub out, and unexpectedly enhanced opacity includes a metallic pigment and a nonmetallic colored pigment dispersed in a solid matrix.  The solid matrix may be any suitable marking composition matrix, including a conventional wax and fatty acid matrix, a polyethylene resin matrix, or a polyethylene glycol resin matrix.
Patent CA-2050521-A1 (CA)
Title: Pigments of improved dispersibility in thermoplastic resins
Inventor: STRAMEL RODNEY D
IPC: C09C3/10
Filed: 1991-09-03
Abstract: A pigment composition of improved dispersibility in thermoplastic resins and concentrates of the pigment compo-sition in thermoplastic resin are provided. The pigment composition is comprised of an inorganic pigment such as titanium dioxide having an organophosphate ester treating agent deposited thereon.
Patent CA-2050547-A1 (CA)
Title: Dye and its solution
Inventor: KUSAKA KAZUHITO
IPC: C09B61/00
Filed: 1991-09-03
Abstract: Disclosed are a dye having a structural formula (I):    where n is from 1 to 15, and a solution containing tire dye.      The dye is highly stable and has a characteristic color hue, and it is insoluble in water. The dye is expected to be useful in various fields of coating materials, dyes, cosmetics and food additives.
Patent CA-2052993-A1 (CA)
Title: Air-launched buoys
Inventor: GREEN PATRICK J
IPC: B63B22/00
Filed: 1991-10-08
Abstract: ABSTRACT    An  air  launched buoy 1, eg a bathythermal  buoy,  is described  comprising  a  plurality of hinged  petals  6  of plastics  material disposed around the body 2 of the buoy 1, the petals 6 in the pre-launch condition being retained in a forwards pointing direction and having a cylindrical skirt 9 provided  between the petals and the body 2.  When the  buoy is launched  the petals 6 are released and the petals 6  and skirt 9  assumed  a  rearwards  and  outwards  configuration (Figure  2),  the  skirt 9 being outwards of the  petals  6, retarding  and stabilising the ballistic flight of the  buoy 1.
Patent CA-2055483-A1 (CA)
Title: Polyester chain-extended vinyl ether urethane oligomers
Inventor: LAPIN STEPHEN C
IPC: C08F299/06
Filed: 1990-04-30
Abstract: A vinyl ether oligomer especially useful for coatings is prepared by reacting an hydroxyl-terminated polyester, a diisocya-nate, and a hydroxy monovinyl ether having formulas as defined herein.
Patent CA-2055736-A1 (CA)
Title: Deodorizing apparatus and a toilet provided with the apparatus
Inventor: AIBE TOSHIO
IPC: E03D9/052
Filed: 1991-11-18
Abstract: ABSTRACT    The deodorizing apparatus includes a gas duct having a suction port to be disposed within a toilet bowl and an exhaust port to be disposed outside  the toilet bowl, and an active carbon honeycomb and a chemical-supporting honeycomb as disposed within the gas duct in that order in the direction from the suc-tion port to the exhaust port.  The deodorizing appara-tus further includes a motor operative in response to a sensor detection signal representing the user sitting on the stool seat to drive a fan disposed downstream within the gas duct, and a timer operative in response to a sensor detection signal representing the user leaving the stool seat to control the operation time of the motor.  There may also be provided a damper for opening and closing the gas duct in response to the action of the fan.
Patent CA-2056360-A1 (CA)
Title: Curable blends of hydrolysable polyoxypropylenes and epoxy resins
Inventor: FUJITA MASAYUKI
IPC: C08L63/00
Filed: 1991-04-03
Abstract: This invention provides a curable resin composition which has a low viscosity, hence is easy to handle, before curing and, after curing, gives cured products having good tensile characteristics and, in addition good chemical resistance and water resistance.      This composition comprises (A) an oxypropylene polymer having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group being bound to the silicon atom and having an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, and (B) an epoxy resin.
Patent CA-2056645-A1 (CA)
Title: Battery charging cable system
Inventor: JOANNOU CONSTANTINOS J
IPC: H02J7/00
Filed: 1991-11-29
Abstract: This invention relates to a battery charging system consisting of a pair of cables with clamps at each end, an electronic sensor and monitor and a special polarity reversing relay. In using the system to charge a battery from a charged battery, or another source, the system connects the two batteries together with the correct polarity automatically.
Patent CA-2059210-A1 (CA)
Title: Geometry enhanced optical output for rf excited fluorescent lights
Inventor: WASHBURN ROBERT D
IPC: H01J65/00
Filed: 1992-01-13
Abstract: GEOMETRY ENHANCED OPTICAL OUTPUT FOR RF EXCITED FLUORESCENT LIGHTS                   ABSTRACT OF THE DISCLOSURE      A fluorescent lighting structure having an inner glass envelope and an outer glass envelope surrounding the inner glass  envelope,  an  ionizable gas contained within the volume between the inner and outer glass envelopes,  an electrode structure disposed on the inside surface of the inner glass envelope, a phosphor coating disposed on the outside surface of the inner glass envelope, and an ultra-violet reflective coating on the inside surface of the outer glass envelope.  Excitation of the electrode struc-ture causes discharge of the ionizable gas that produces ultraviolet radiation, which in turn excites the phosphor coating to emit visible light.
Patent CA-2059533-A1 (CA)
Title: Microwave apparatus and method for measuring fluid mixtures
Inventor: SCOTT BENTLEY
IPC: G01N22/04
Filed: 1990-07-02
Abstract: Apparatus for measuring the concentration of one material such as water in another material such as crude or refined oil including a coaxial microwave transmission line (14) formed by a conduit for receiving the material and a center conductor (22) which is sheathed with a dielectric covering  (27) which is operable to prevent short circuiting of the transmission path.   An oscillator circuit (30) is coupled to the transmission line and is driven by a free-running voltage controlled oscillator and a signal receiver monitors the change in frequency caused by impedance pulling of the oscillator due to the change in the dielectric constant of the mixture. Incident and reflected or transmitted power with respect to the measurement section is measured to determine whether an oil-in-water or water-in-oil emulsion is present to verify the concentration of one fluid in the other for a particular operating frequency.
Patent CA-2059944-A1 (CA)
Inventor: USHER JOHN D
IPC: G01K1/10
Filed: 1992-01-23
Abstract: The specification describes a thermocouple assembly for sensing temperatures of molten metals in a metallurgical vessel,  such as a tundish used in continuous steel casting. The  thermocouple  assembly  includes  a double bore  insulator containing  the  two  noble  metal  alloy  lead  wires  of  the thermocouple.  Platinum-rhodium alloys are preferred.  The weld bead joining the ends of the leads is positioned within one of the bores of the insulator such that a lower purity alloy lead is exposed in the loop.   The loop resides in a blind bore formed in the end of the double bore insulator and is enclosed in a containment zone by a refractory plug or foil disc closing off the end of the blind bore.   The double bore insulator is received in an axial bore of a refractory sheath having a closed end adjacent the loop area of the thermocouple.   The bores  of  the  double  bore  insulator  and  refractory  sheath communicate with the atmosphere to permit oxygen to diffuse therealong to the loop area to protect the platinum alloy from reaction with carbon and silica which may be present in trace amounts.          A sacrificial getter of high platinum content is also preferably positioned between the thermocouple loop and the closed end of the refractory sheath to further protect the lower purity platinum alloy loop  from chemical  attack.   A closed end molybdenum sheath having an axial bore receives the refractory  sheath therein.    High  purity  alumina  powder  is preferably packed around an upper annular space between the bore of the molybdenum sheath and refractory sheath to prevent diffusion of atmospheric oxygen within the molybdenum bore and thereby minimize the formation of gaseous molybdenum oxide at molten steel temperatures.
Patent CA-2060777-A1 (CA)
Title: Mixtures of 1-isopropyl-2-aryl imidazole and 1-isopropyl-2-aryl imidazoline as epoxy resin curatives
Inventor: WADDILL HAROLD G
IPC: C08G59/50
Filed: 1992-02-06
Abstract: AS EPOXY RESIN CURATIVES      (D#80,931-F) ABSTRACT         An epoxy resin curative composition that provides cured epoxy resins exhibiting improved properties is disclosed.  The curative composition comprises a mixture of 1-isopropyl-2-aryl imidazole and 1-isopropyl-2-aryl imidazoline.
Patent CA-2065221-A1 (CA)
Title: Harness assembly
Inventor: LEGGE FERGIE
IPC: H01R33/965
Filed: 1992-04-06
Abstract: ABSTRACT           The present invention provides a harness assembly which includes a plurality of sets of wires, each set of wires terminating at one end thereof in a first connector adapted to be electronically connected to a second connector, each set of wires being formed of an impregnated water block wire, the connector being formed of a composite material, each wire of the set of wires having a loop formed therein prior to termination at the connector.  The harness assembly provides corrosion resistance of properties and repairability.
Patent CA-2068047-A1 (CA)
Title: Medical pumping apparatus
Inventor: TUMEY DAVID M
IPC: A61H7/00
Filed: 1992-05-11
Abstract: ABSTRACT    This invention  relates to a medical  pumping apparatus. The medical pumping apparatus continuously and automatically monitors fill status  of the venous plexus  and flow rate from  the venous plexus and  continuously and automatically  controls the pressure and cycle rate  of a pump capable of cyclically applying pressure to a part  of the human body for the  purpose of maximizing blood transfer therein.
Patent CA-2068426-A1 (CA)
Inventor: SWIST JASON
IPC: F16D43/28
Filed: 1990-11-09
Abstract: 2068426 9107293 PCTABS00005 A control for enabling a clutch to be automatically engaged with a power source. An apparatus for automatically controlling the position of a clutch between a power source and a drive train characterized by a control which regulates pressure to a clutch engaging member according to performance criteria of the power source.
Patent CA-2070175-A1 (CA)
Title: Lubricating arrangement for plastic extruders
Inventor: BOEN PER
IPC: B29C48/09
Filed: 1990-12-17
Abstract: Abstract.            A lubricating arrangement for a plastic extruder (1) for  production  of  cylindrical  plastic  tubes with  a smooth  inner  surface,  said  plastic  extruder  (1) comprising a mandrel which consists of a die core (6) which is a cylindrical coaxial extension of extruder screw (2) and rotates together with said screw, and a stationary external die member (7).   The lubricating arrangement being provided at the external die portion for lubricating its forming surface.  The lubricating arrangement comprises a plurality of radially directed plugs  (11,  11',  17,  17'),  each plug provided   in a bore (10) in the externald die member. The inner plug end lying in the die surface.   Lubricating ducts (13) are provided  to  the bore,  said lubricant ducts are connected  with  a  source  of  a  lubricant,  supplying lubricant under pressure.
Patent CA-2070557-A1 (CA)
Title: Transport cart with coin operated lock
Inventor: SONNENDORFER HORST
IPC: G07F17/10
Filed: 1992-06-05
Abstract: ABSTRACT       The invention concerns a transport cart with coin-operated lock. The connection between the coin-operated lock and the associated carrier arm permits the automatic coin mechanism to be pivoted relative to the plane of insertion of its key about an axis of rotation parallel to the handle of the transport cart and to be secured at various angles of inclination.
Patent CA-2070864-A1 (CA)
Title: Anti-chewing and anti-cribbing compositions
Inventor: DYER JOHN W SR
IPC: A01N25/24
Filed: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE    The  composition  includes  an  aromatic  hydrocarbon solvent  and  crystals  thereof  in  a  carrier  such as  an asphaltic or hydrocarbon resin, or an oil.   A non-volatile element, such as a high boiling point hydrotreated petroleum distillate  and/or  an  aliphatic  middle  distillate  may  be added to enhance residual properties  of the composition.          The composition is painted onto wood, penetrates thereinto, and  creates  an  odor  repellant  to  horses  and  the  like, lasting at least six months.  The composition is non-toxic, non-carcinogenic  and has a lower flammability level than like compositions presently available.
Patent CA-2071173-A1 (CA)
Inventor: WATKINS MICHAEL I
IPC: G01N33/531
Filed: 1992-06-12
Abstract: Denaturing agents used to pretreat test samples for immunoassays are neutralized and deactivated by the addition of a treatment agent which is a combination of a buffering agent in acid form and an agent for converting the sulfhydryl groups of the denaturing agents to a non-active form such as disulfides or alkylthio groups.  The treatment agent serves this function without having sufficient denaturing activity by itself to interfere with subsequent steps of the assay procedure.  Also disclosed is a protocol for a vitamin B12 assay which involves a sequential rather than competitive binding of the B12 with excess intrinsic factor followed by the binding of excess enzyme-labeled B12 to any remaining intrinsic and immobilizing such intrinsic factor on a solid phase.  Various problems associated with B12 assays are avoided by this technique.
Patent CA-2075959-A1 (CA)
Title: Soft milling wheats which produce dough with low elasticity
Inventor: PAYNE MARTIN I
IPC: A21D13/08
Filed: 1991-02-18
Abstract: A soft-milling wheat which produces dough having exceptionally low visco-elasticity is provided by breeding from a variety having Glu-D1 double null trait, such as the landrace "Nap Hal". The wheat can be used in the manufacture of biscuits and wafers without the need to treat the flour with agents such as sodium metabisulphite.
Patent CA-2076615-A1 (CA)
Title: Tissue products made from low-coarseness fibers
Inventor: HERMANS MICHAEL A
IPC: A47K10/00
Filed: 1992-08-21
Abstract: ABSTRACT            Tissue products made with fibers having a low Coarseness Index have improved softness relative to tissue products made with conventional papermaking fibers.
Patent CA-2077753-A1 (CA)
Inventor: HAIGWOOD NANCY L
IPC: C07K16/00
Filed: 1991-03-08
Abstract: A method for purifying recombinant HIV gp120 so as to provide a glycopeptide having protein/protein binding properties substantially identical to natural viral HIV gp120, which comprises fractionating a composition containing crude gp120 sequentially using (1) ion exchange chromatography, (2) hydrophobic-interaction chromatography, and (3) size exclusion filtration, collecting at each step a fraction that exhibits specific binding affinity for CD4 peptide. The process is carried out in the absence of any affinity purification steps or any steps (such as reverse-phase HPLC) that use contact protein with organic solvents. The product obtained by this method is a purified, full-length, non-fusion recombinant HIV gp120 glycoprotein having protein/protein-interaction properties substantially identical to gp120 as presented on an HIV virus, including binding affinity for CD4 and binding affinity for at least one antibody capable of neutralizing HIV infectivity.
Patent CA-2078204-A1 (CA)
Title: Luggage
Inventor: WANG KING-SHEN
IPC: A45C13/26
Filed: 1992-09-14
Abstract: A travel bag having a handle assembly consisting of an elongated handle bar movably inserted in a channel plate for carrying, and a U-shaped auxiliary handle pivoted to the channel plate for lifting.  The travel bag also has a fixed castor on a bottom edge thereof in the middle, a first pair of opposite swivel castors on one end of the bottom edge, and a second pair of opposite swivel castors on an opposite end of the bottom edge.  The fixed castor and either pair of opposite swivel castors are in contact with the ground as the travel bag is moved.
Patent CA-2078320-A1 (CA)
Title: Method and coating device for the coating of a size-press roll, paper or board
Inventor: RANTANEN RAUNO
IPC: D21H23/56
Filed: 1992-09-15
Abstract: The invention relates to a coating device for the coating of a size-press roll, paper or board or an equivalent moving base.      The coating device includes a revolving coating bar which rests against a moving base. The coating bar extends across the machine width and is supported on a cradle substantially over its entire length. The coating bar spreads and smoothes a coating agent introduced into the coating device and applied onto the moving base before the moving base contacts the coating bar. The coating bar in accordance with the invention is a smooth bar of large diameter, fitted against the moving base so that the profile of coating quantity of the coating agent can be controlled.
Patent CA-2079753-A1 (CA)
Inventor: SLICKER JAMES M
IPC: F16D43/22
Filed: 1992-10-02
Abstract: An automatic clutch controller 60 for a vehicle that reduces the oscillatory response to clutch engagement.   The automatic clutch controller receives inputs from an engine speed sensor 13 and a transmission input speed sensor 31 and develops a clutch engagement signal controlling a clutch actuator 27 between from disengaged to fully engaged.  The clutch engagement signal at least partially engages the friction clutch in a manner to cause the measured transmission input speed to asymptotically approach a reference speed employing an approximate inverse model of this oscillatory response.  In a launch mode, corresponding to normal start of the vehicle, the reference speed is the measured engine speed.   In a creep mode,  corresponding to slow speed creeping of the vehicle, the reference speed is a creep speed reference based on the throttle setting and the engine speed.          The two modes are selected based upon the throttle setting.  The automatic clutch controller preferably includes an integral error function and a differential engine speed function, which together adaptively adjust clutch engagement corresponding to vehicle loading.
Patent CA-2084042-A1 (CA)
Title: Copolymers and their use as lubricants and release agents for processing thermoplastics
Inventor: HEINRICHS FRANZ-LEO
IPC: C08F210/14
Filed: 1992-11-27
Abstract: Abstract of the disclosure:                HOE 91/F 369 Copolymers and their use as lubricants and release agents for processing thermoplastics Copolymers prepared by free radical polymerization of a C12-C60-.alpha.-olefin with a carboxylic acid of the formula CH2=CR1-COOH,  a carboxylic acid ester of the formula CH2=CRl-COOR2 and,  if appropriate,  a styrene compound prove to be highly active lubricants and release agents in polymers, in particular in polyvinyl chloride, which scarcely influence the transparency of the polymers.