baber/WOPTO huggingface dataset:
Patent CA-2024914-A1 (CA)
Title: Valve arrangement for liquid dispensing device
Inventor: STAINBROOK MARLAN
IPC: B67C3/28
Filed: 1990-09-07
Abstract: A valve arrangement for a liquid dispensing unit includes a discharge nozzle having a central bore, the bore having a central axis, an inner wall, and an edge forming  a  valve  seat;  a  movable  valve  element cooperating with the bore to control liquid flow out of the nozzle; the valve element including a valve stem extending  along  the  central  axis;  a  device  for reciprocally moving the valve element along the central axis; a valve base mounted at the end of the valve stem for contacting the valve seat to seal closed the nozzle, the valve base  including a shear step at the outer circumferential edge thereof, and a seal area adjacent the  shear  step  for  contacting  the  valve  seat  for shutting off liquid flow when the valve is in a closed position; a plurality of arms projecting from the valve stem for guiding the valve stem with respect to the inner wall of the bore, the arms being spaced from the valve base;  and a single fin extending from an outer periphery of the valve base in a direction perpendicular to the axis of the valve stem for separating the flow of the liquid as the liquid leaves the nozzle.
Patent CA-2025610-A1 (CA)
IPC: B32B17/10
Filed: 1990-09-18
Abstract: A  substantially ghost-free  head-up display  for a vehicle such as an automobile is disclosed.  A head-up display unit projects the image beam toward the vehicle windshield for reflection back toward the viewer's eye. The windshield is slightly tapered so that the reflected images from the outside and inside surfaces of the wind-shield are reflected at slightly different angles, chosen so that the images substantially overlap at the viewer's eye.  Use of a properly selected taper results in substan-tially ghost-free operation.  The taper can be achieved by sandwiching a tapered layer of transparent material such as polyvinylbutyral between two windshield singlets.
Patent CA-2026639-A1 (CA)
Title: Management of infertility
Inventor: LUNENFELD BRUNO
IPC: G01N33/50
Filed: 1990-10-01
Abstract: A method is disclosed detecting whether a female patient is likely to benefit from combined GH/gonadotropin or GHRH/gonadotropin therapy. The method involves administering to the patient a predetermined dose of clonidine or a pharmaceutically acceptable derivative thereof, monitoring the blood level of GH following administration of said clonidine or derivative, and detecting whether the peak blood level of GH is above a predetermined minimum value.
Patent CA-2026967-A1 (CA)
Title: Method of removing cobalt from chloride solution
Inventor: TSUCHIDA NAOYUKI
IPC: C22B3/44
Filed: 1990-10-04
Abstract: A chloride solution containing not more than 130 g/? of nickel ions, 0.05 to 0.2 g/? of divalent iron ions and cobalt ions is prepared.  The solution is brought into reaction with not less than 1 equivalent of chlorine with respect to the total amount of iron ions and cabalt ions contained in the solution, thereby removing cobalt from the chloride solution.
Patent CA-2027381-A1 (CA)
Title: Core-shell polymer, resin composition and molded article thereof
Inventor: OSHIMA JUNJI
IPC: C08L51/04
Filed: 1990-10-11
Abstract: Abstract The invention thus provides a core-shell polymer comprising a core phase which is rubbery polymer and a shell phase which is a glassy polymer with an unsaturated dicarboxylic acid or its mono-alkyl ester as a constituent thereof, wherein the toluene-soluble fraction of the core-shell polymer accounts for not more than 10% by weight.      It also provides polyamide resin compositions comprising said core-shell polymer and molded articles produced by molding said compositions.      The resin compositions and molded articles which comprises the core-shell polymer as an impact modifier have good features, especially a high impact strength at temperature ranging from room temperature to -30°C.
Patent CA-2028488-A1 (CA)
Title: Ergonomic knife
Inventor: TOWNSEND RAY T
IPC: A22B3/10
Filed: 1990-10-24
Abstract: An ergonomic hand tool of this invention comprises an elongated support bar adapted to be positioned adjacent the forearm and wrist of the wearer. The support bar has forward and rearward ends with the forward end being adjacent the wrist of the wearer,  Attachment means are on the support bar for securing it to the forearm and wrist of the wearer.  A hand gripping member is pivotally secured to the forward end of the support bar.  A locking mechanism is operatively connected to the hand gripping member to selectively lock the hand gripping member in a predetermined position with respect to the support bar.  A tool member, such as an elongated knife, is secured to the hand grip-ping member.  The hand gripping member has a plurality of finger gripping portions thereon.  The locking means includes a spring coil operatively connected to a thumb actuated lever on the hand gripping member.
Patent CA-2030668-A1 (CA)
Title: Polyester bottles
Inventor: TINDALE NEIL
IPC: B29K67/00
Filed: 1990-11-22
Abstract: Bottles can be made, especially by extrusion stretch blow moulding, using a thermoplastic polymer composition comprising a polymer, preferably a polyester, which contains metal particles especially of antimony which intrinsically absorb radiation in the wavelength region 500 nm to 2000 nm, in a quantity such that the reheat time of the polymer is less than the reheat time of the polymer in the absence of that quantity of particles. A method of making such metal containing polymer compositions by reducing a metal compound in situ is also described.
Patent CA-2034393-A1 (CA)
Title: Stabilisation of dyeings on polyamide fibres
Inventor: REINERT GERHARD
IPC: D06M13/256
Filed: 1991-01-17
Abstract: A process for improving the thermal and/or photochemical stability of dyeings on polyamide fibres by applying to said fibres, from an aqueous medium, water-soluble phenolic antioxidants of formula (A-Y-)n Z(-W)m, wherein A, Y, Z, W, m and n are as defined in claim 1.
Patent CA-2034935-A1 (CA)
Title: System for the transmission of data packets
Inventor: INGLIS ANDREW
IPC: H04L12/28
Filed: 1991-01-25
Abstract: A system for the transmission of data packets of mutually equal durations from a plurality of substations to a main station via one or more transmission channels, the main station comprising transmission means for transmitting on each transmission channel a synchronising signal which indicates the beginning of a frame, programmable memory means for storing, in respect of each transmission channel, a maximum link establishment time and a maximum link disestablishment time both of which being a characteristic of the transmission channel from the substations to the main station, the substations each comprising programmable memory means for storing said maximum link establishment times and said maximum link disestablishment times, means which on reception of the synchronising signal on a transmission channel subdivide the frame into a number of consecutive time slots of mutually equal durations at least equal to the sum of the duration of a said data packet, said stored maximum link establishment time and said stored maximum link disestablishment time of that transmission channel, means for transmitting a said data packet, if so desired, by selecting a time slot from the sequence of time slots and transmitting the data packet within a period within the selected time slot, the period beginning at a time equivalent to said stored maximum link establishment time of that transmission channel after the beginning of the selected time slot and ending at a time equivalent to said stored maximum link disestablishment time of that transmission channel before the end of the selected time slot.
Patent CA-2035466-A1 (CA)
Title: Optical card of closed type
Inventor: FUJITA MINORU
IPC: B42D15/10
Filed: 1990-10-19
Abstract: A B S T R A C T         A technique of an optical card having high information recording density.  A specially superior writing characteristic is required for an additional recording optical card among optical cards.  In the case where the optical card of additional recording type is closed, reduction in the writing characteristic is observed.  In this invention, a sensitizing layer (50), which serves as escape for molten recording material at writing, is provided in rear of an optical recording section (30), so that an optical card is produced which is superior in both environmental resistance and writing ability.  The sensitizing layer (50) is made of self-oxidizable or thermoplastic resin and an absorbing agent dispersed in the resin.  The absorbing agent cooperates with the resin not only to improve a writing characteristic, but also'to improve design ability and reading ability of the card.
Patent CA-2038712-A1 (CA)
Title: Ion type non-aqueous type composition and its use as a solvent
Inventor: CHAUVIN YVES
IPC: B01J31/02
Filed: 1991-03-20
Abstract: Nonaqueous liquid composition of ionic nature, resulting from bringing at least one alkylaluminium dihalide into contact with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, the said composition being liquid below 80 DEG C, for example between -70 and +40 DEG C. 
<??>Use as a solvent for catalysts for olefin dimerisation, codimerisation or oligomerisation.
Patent CA-2038749-A1 (CA)
Title: Engine starter gearing
Inventor: GIOMETTI PAUL F
IPC: F02N15/02
Filed: 1991-03-21
Abstract: A centrifugally disengageable engine starter gear of the positive shift type that has a clutch to provide for driving and indexing of the starter gear, an internal mechanism keeps the clutch teeth in engagement during the indexing function, and a centrifugal separator separates the clutch teeth in an overrunning condition.  The separator includes a plurality of flyweight members disposed in a like plurality of flyweight recesses provided in a driven member of the clutch.  Radial displacement of the plurality of flyweights axially displaces a thrust washer to separate the clutch teeth.  A projection extending longitudinally from each web which separates the flyweight recesses prevents the flyweight members from disengaging from the flyweight recesses during an overrunning mode.
Patent CA-2042076-A1 (CA)
Inventor: KANJO WAJHI
IPC: B61G1/28
Filed: 1991-05-08
Abstract: The present invention provides an apparatus for securing a bearing assembly to an articulated coupling apparatus which connects one end of one railway car to an adjacent end of a second railway car in a semipermanent manner. Such coupling apparatus includes a male connection member, a female connection member, a bearing assembly, and such device for securing such bearing assembly to the coupling apparatus.
Patent CA-2046671-A1 (CA)
Title: Selected hydroxy-oximes as iron deactivators
Inventor: ROLING PAUL V
IPC: C09K8/035
Filed: 1991-07-10
Abstract: Abstract of the Disclosure 2'-hydroxy-4' or 5'-alkylacetophenone oximes and 2-hydroxy-4 or 5-alkylbenzaldehyde oximes are used to deactivate iron species contained in hydrocarbon fluide. Left untreated, iron leads to decomposition of the hydrocarbon, resulting in the formation of gummy, polymer masses in the hydrocarbon liquid.
Patent CA-2048470-A1 (CA)
Title: Plasma processing apparatus having an electrode enclosing the space between cathode and anode
Inventor: YAMAGAMI ATSUSHI
IPC: C23C16/509
Filed: 1991-08-06
Abstract: A plasma processing apparatus comprises: a first electrode connectable with a plasma generating power source; a second electrode capable of supporting a substrate to be subjected to a plasma-involving surface treatment; a third electrode enclosing a space between the first and second electrodes, all the electrodes being positioned in an evacuatable chamber; and potential control means for controlling the potential of the third electrode.
Patent CA-2050862-A1 (CA)
Title: Apparatus for sewing fabric pieces to slide fastener chain
Inventor: HUTCHERSON JAMES
IPC: D05B23/00
Filed: 1991-09-06
Abstract: An apparatus for automatically sewing a succession of fabric pieces to a continuous slide fastener chain comprises a sewing machine for feeding and sewing the fabric pieces and slide fastener chain together; a guiding apparatus disposed upstream of the sewing machine and including a pair of opposed guide rollers urged towards each other with the slide fastener chain interposed therebetween so as to be driven via the slide fastener chain by the sewing machine while guiding the slide fastener chain towards the sewing machine; and a feeding apparatus disposed between the guiding apparatus and the sewing machine and including a pair of opposed feed rollers urged towards each other so as to convergently place therebetween the slide fastener chain into superimposed relation to the fabric pieces and to feed the fabric pieces with the slide fastener chain thus superimposed thereon to the sewing machine.  One feed roller of the two feed rollers of the feeding apparatus which the fabric pieces ride on and one guide roller of the guide rollers of guiding apparatus are so linked as to rotate with each other.
Patent CA-2051099-A1 (CA)
Title: Fault detection in electrochemical gas sensing equipment
Inventor: JONES GARETH JEREMY
IPC: G01N27/26
Filed: 1990-04-04
Abstract: A circuit is described which tests whether an amperometric electrochemical gas sensor (10) monitoring the concentration of toxic gases in an atmosphere is working properly. The sensor (10) has sensing electrode (12), a reference electrode (14) and a counter electrode (16) and in normal operation the potential between the sensing and reference electrodes is fixed by means of an operational amplifier (18): when there is gas in the atmosphere, the gas reacts electrochemically at the sensing electrode (12), thereby altering the potential between the sensing and the reference electrode and this alteration causes amplifier ( l8) to supply electrical current to the counter electrode resulting in an electrical current through the sensor that is proportional to the amount of toxic gas in the atmosphere. The sensor is periodically tested to see whether it is working properly by applying a pulse potential between the sensing and reference electrode; if the sensor is working properly, this results in a flow of current through the sensor (10) and through the circuit which is detected by an alarm device (33) connect:d to potentiometer (30) by a switch (30a) during the test periods. If no current is detected by the alarm device (33), the sensor is not working property and an alarm is given by the device (33).
Patent CA-2052235-A1 (CA)
Inventor: CORMIER FREDERICK P
IPC: A47L13/11
Filed: 1991-09-25
Abstract: Snow rake (10) having a generally rectangular main body (11) formed of a closed-cell, resilient, low-density polyethylene bead. which main body is clamped between two spaced, parallel plates (15, 16) to one of which a handle (14) is attached.
Patent CA-2052723-A1 (CA)
Inventor: NORDBERG HENRY T
IPC: B28B23/00
Filed: 1991-10-03
Abstract: A concrete building block encapsulating a compacted bundle of tires is provided as a permanent environmentally safe container for used automobile tires.  The cube of concrete with the tires in it forms an economically attractive light-weight building block that can be used for building fences, walls and other structures and/or disposed of in an efficient environmentally safe fashion to permanently encapsulate the tires and prevent contamination of the environment.  A tapered central hole is provided in the block for material handling purposes and interlocking tapered recesses and pucks are provided for aligning multiple layers of blocks when used as a building material.  Various sizes and shapes of blocks are disclosed.
Patent CA-2062442-A1 (CA)
Title: Chemical process
Inventor: DUKAT WOLFGANG W
IPC: C07C17/10
Filed: 1992-03-06
Abstract: ABSTRACT CHEMICAL PROCESS          A process for the preparation of an alkane containing fluorine by contacting a halogenated alkane containing at least one hydrogen atom and at least one halogen atom selected from chlorine, bromine and iodine with a transition metal fluoride selected from osmium hexafluoride, iridium hexafluoride, rhenium hexafluoride, ruthenium pentafluoride, chromium pentafluoride, vanadium pentafluoride, rhenium heptafluoride and uranium hexafluoride, whereby to replace at least one hydrogen atom or at least one chlorine, bromine or iodine atom in said halogenated alkane starting material by a fluorine atom. Use of certain of the defined transition metal fluorides, e.g. OsF6, IrF6 and ReF6 allows the selective replacement of halogen by fluorine, whilst others, e.g. UF6, VF5 and ReF7 allow selective replacement of hydrogen by fluorine.
Patent CA-2063965-A1 (CA)
Title: 3-d continuous assemblage of composite decorative outfit with facilities for lamp fitting
Inventor: WU JENG-SHYONG
IPC: F21S8/00
Filed: 1992-03-25
Abstract: ABSTRACT:      A three-dimensional assemblage of composite decorative outfit  (DO)  comprises at least two to  infinity number of composing element(s)  or sub-assembly thereof having same or different pattern(s)  connected directly through male/female joint means such as peg/hole, tenon/mortise, flange/groove or indirectly  by  way  of  interconnectors  each  having  said male/female means provided, into a continuity toward 1, 2 or 3 spatial directions to form a 2 or 3 dimensional assemblage. Each element includes optional lamp fitting facility for the attachment of light bulb.  The connecting means could include a universal joint capable of swiveling around.   Further, a sample plate having holes for inserting lamps and various patterns for facilitating a user to complete the assemblage is also provided.
Patent CA-2065031-A1 (CA)
Title: Miniature circuit breakers
Inventor: ANQUETIL WILLIAM H
IPC: H01H71/52
Filed: 1990-07-26
Abstract: 2065031 9102370 PCTABS00003 A miniature circuit breaker for domestic and like electricity supply circuits has a double break design featuring a contact carrier (28) mounted on a plastic sliding carriage (60) directly connected to a coiled tension spring (108) and controlled by a latch mechanism which releases it for completely independent breaking movement on overload. Major parts of the latch mechanism are moulded in a plastics material. An anti-bounce stop (120) is provided for the carriage. Simple adjustement of the trip point is provided by a threaded adjuster which moves a thermal trip lever (88).  Leaf springs(114, 134) position the movable contacts and the plunger (126) of the overload-detecting solenoid (24).
Patent CA-2067040-A1 (CA)
Title: Indoline hydrochloride salts and process for their preparation
Inventor: ACHINI ROLAND
IPC: A61K31/40
Filed: 1992-04-24
Abstract: Abstract The invention relates to 3,3-dimethyl-6-ethoxy-indoline hydrochloride, preferably in the crystalline A modification, and to a process for its production.  3,3-dimethyl 6-ethoxy-indoline hydrochloride possesses analgesic activity.
Patent CA-2070976-A1 (CA)
Inventor: AUMAN BRIAN C
IPC: C08G65/40
Filed: 1992-06-10
Abstract: TITLE POLYETHERS BASED ON 9,9-BIS-PERFLUOROALKYL-3,6-DIHYDROXY-XANTHENE OR 9-ARYL-9-PERFLUOROALKYL-3,6-DIHYDROXY-XANTHENE ABSTRACT OF DISCLOSURE Polyethers based on 9,9-bis-perfluoroalkyl-3,6-dihydroxy-xanthene or 9-aryl-9-perfluoroalkyl-3,6-dihydroxy-xanthene and another constituent selected from aryl sulfone, aryl ketone, benzonitrile, and imide. These polyethers are useful as dielectric films in electronic devices.
Patent CA-2071669-A1 (CA)
Inventor: STACK GARY P
IPC: C07D319/20
Filed: 1992-06-19
Abstract: The compounds:   (see formula I) wherein R1 and R2 are, independently, hydrogen, alkyl, alkoxy, aralkoxy, alkanoyloxy, hydroxy, halo, amino, mono- or dialkylamino, alkanamido, or sulfonamide, or R1 and R2 together form methylenedioxy, ethylenedioxy, or propylenedioxy; R3 is hydrogen or alkyl; n is one of the integers 2, 3 or 4;  R4 and R5 are, independently, hydrogen, alkyl, cycloalkyl, alkanoyl, aroyl, alkylsulfonyl or arylsulfonyl, or R4 and R5 together form a 3-7 membered polymethylene ring; or a pharmaceutically acceptable salt thereof, are antipsychotic, antidepressant and anxiolytic agents useful in the treatment of multi-CNS disease states.
Patent CA-2071920-A1 (CA)
Title: Automatic flashover protection for locomotive traction motors
Inventor: BAILEY RONALD B
IPC: B60L50/12
Filed: 1991-08-09
Abstract: Flashover protection is provided for a locomotive propulsion system including a plurality of d-c traction motors (15, 16) each having a commutator (15A) subject to flashovers. A flashover detector (32) is provided for producing a fault signal in case a flashover occurs. In response to the fault signal, a solid-state controllable electric valve (71) connected between the excitation cur-rent source (17) and the alternator field winding (12f) is changed to a non-conducting state, whereupon the magnitude of excit-ation current in the alternator field winding (12f) is rapidly reduced toward zero and the alternator's output current is correspon-dingly decreased whenever a flashover occurs.
Patent CA-2074130-A1 (CA)
Title: Condiment shaker
Inventor: ZIMMERMAN LARRY G
IPC: B65D47/04
Filed: 1992-07-17
Abstract: ABSTRACT OF THE DISCLOSURE A condiment shaker including a hollow body with an enlarged opening therethrough receiving a pivotally mounted lid for rocking between a closed position and a dispensing position.  In the dispensing position, slots through the lid flange are open and provide transverse dispensing passages.          Lugs on the container body align with the slots and move through the length thereof as the lid is closed.  The lid is positively positioned and releasably retained in each of the two positions by cooperating abutment areas and a complementary protuberance and recess respectively on the container body and the lid.
Patent CA-2074415-A1 (CA)
Title: Handling or Laying Pipes
Inventor: MOORE DAVID
IPC: F16L1/10
Filed: 1992-07-22
Abstract: Pipe handling and laying apparatus 1 supports a pipe on holding and support means 2,3 and includes extendible and retractable gripping means 4 having gripping head 4a. The pipe, supported generally within area A, is brought in end-to-end relationship with another pipe to be joined thereto.  Gripper head 4a is introduced into the open end of the second pipe and ram piston P of hydraulic ram H is retracted causing legs L of gripper head 4 to pivot into extended positions to grip the interior wall of the second pipe by means of gripper feet F.   Further retraction of ram piston P pulls the first pipe into close relationship with the second.
Patent CA-2075844-A1 (CA)
Title: Electric stringed instrument having a device for sustaining the vibration of the string
Inventor: TUMURA KENJI
IPC: G10H3/18
Filed: 1992-08-12
Abstract: AN ELECTRIC STRINGED INSTRUMENT HAVING A DEVICE FOR     SUSTAINING THE VIBRATION OF THE STRING                 ABSTRACT OF THE DISCLOSURE      An electric stringed instrument having a device for sustaining the vibration of the string comprises an electromagnetic pickup for converting the vibration of the string to an electric signal, amplifying means for amplifying said electric signal, and an electromagnetic driver for converting said amplified signal to a driving force to thereby drive the string.  The electromagnetic pickup and the electromagnetic driver and placed at a right angle or a predetermined angle of inclination to each other such that induced electromotive forces caused by magnetic flux from said electromagnetic driver negate each other or are not produced at said electromagnetic pickup to thereby reduce the magnetic feedback.