baber/WOPTO huggingface dataset:
Patent CA-2012726-A1 (CA)
Inventor: KOSKI ERKKI
IPC: D21F3/04
Filed: 1990-03-21
Abstract: A method is provided for the removal of water from a web by hot-pressing  while  the web is in  direct contact with a  heated cylinder face.  The web is passed, while being supported by a press fabric, through at least two separate press stages.  The web is first passed into direct contact with the heated cylinder face and into an extended-nip press stage.  At the beginning the extended-nip press stage, a press-glide belt is passed into contact with  the  press fabric, the press-glide belt is pressed by means of a press member in the extended-nip stage against the heated cylinder  face.  This press-glide belt is separated from the fabric and the web is passed to the next stage where the web is pressed against a cylinder face only by means of the tension of the press fabric.  After this latter stage, the web is passed to  an  intensive  roll-nip pressing stage, through a roll-nip which is formed between the hot cylinder and a hollow-faced press roll.  In this stage, water is removed from the web into the press fabric and into the hollow face of the press roll.  The press fabric is separated from  the  web, which is then detached from the face of the hot cylinder.
Patent CA-2014167-A1 (CA)
Title: Recovery and destruction of toxics from contaminated soil
Inventor: ROBERTSON STRUAN
IPC: C09K17/00
Filed: 1990-04-09
Abstract: ABSTRACT A method and apparatus for cleansing contaminated soil (11)  the apparatus includes a stirrer (12) into which contaminated soil (11) is delivered together with a solvent.  A slurry is produced which is delivered to a settler (18) which produces a settler underflow and contaminated solvent.  The settler (18) underflow is delivered to a drier (23).  The contaminated solvent passes through a filter (20) which produces a filter cake also delivered to the drier (23).  The contaminated solvent passes through a distillation column (28) and is subsequently delivered to a plasma gun (35) whereat the contaminants are oxidised.
Patent CA-2016043-A1 (CA)
Title: Bucket wheel assembly
Inventor: PAUL RAJ
IPC: E02F5/28
Filed: 1990-05-03
Abstract: ABSTRACT     A bucket wheel assembly for excavating solid material from the ground which can be slurried with water has a series of buckets mounted on a framework rotatable about a substantially horizontal axis, the buckets, being secured to the framework at spaced positions around the periphery, and each bucket having a leading edge portion engagable with the ground as the framework rotates to cause material to be scooped from the ground into the bucket.  Sets of nozzles are mounted around the framework, each set of nozzles being located between an adjacent pair of buckets and spaced in the direction of movement of the buckets from the leading edge portion of a following bucket,  a rotary valve is connected to the nozzles and to a source of liquid under pressure.  The rotary valve is operated by rotation of the framework to cause liquid under pressure to be selectively supplied from the source of liquid under pressure to each set of nozzles in turn when the set of nozzles and its following bucket are approaching the ground to cause liquid from the set of nozzles to impinge on the ground and form a slurry of the material which is subsequently scooped into a following bucket.
Patent CA-2017016-A1 (CA)
Title: Antifreeze compositions
Inventor: MILES PETER
IPC: C09K5/00
Filed: 1990-05-17
Abstract: A-17588/=/MA 1963 Antifreeze compositions Abstract of the Disclosure The present invention provides a polyhydric alcohol antifreeze composition comprising A) as hard water deposition inhibitor, a hyclrolyzed copolymer of maleic anhydride with a mono-ethylenically unsaturated monomer, or mixture of monomers, the molar ratio of maleic anhydride to other monomers being from 2.5:1 to 100;1, and the molecular weight of the copolymer being below 1000; and optionally B) as corrosion inhibitor, at least one of B-l) a triazine compound having the formula (I):                                          I     wherein Z is a C1-C11 alkylene group, X is hydrogen, an alkali metal or mono-, di- or tri-ethanolamine, R1 and R2, independently, are hydrogen or methyl and R3 is a group -NR4R5 in which R4 is C1-C12 alkyl or -Z-COOX in which Z and X have their previous significance, and R5 is hydrogen or C1-C12 alkyl; B-2) 2-hydroxyphosphonoacetic acid; B-3) (2-Benzo- thiazolylthio)succinic acid and B-4) (2-benzothiazolylthio)-acetic acid.
Patent CA-2018018-A1 (CA)
Inventor: REUTER RENE F
IPC: B60C9/00
Filed: 1990-05-31
Abstract: A pneumatic tire (10) comprises a radial ply (13) carcass, a tread portion (27) disposed radially outwardly of the crown region of the carcass and a crown reinforcing structure interposed between the tread portion (27) and the crown region of the carcass.      The crown reinforcing structure includes a belt assembly (21) having at least a first (22), radially innermost and a second (23), radially outermost belt ply as well as a textile overlay structure which is superimposed radially outwardly to said belt assembly (21). The textile overlay structure is reinforced with cords (30, 40) being made of materials showing on a homogeneous specimen a Youngs modulus of at least 15,000 MPa; the cords have a twist multiplier comprised between 6 and 14 and at least one of the yarns (31, 32, 41, 42, 43) included in the cords (30) 40) has a twist of at least 14 turns per inch.
Patent CA-2018876-A1 (CA)
Inventor: NONAKA KEIZO
IPC: G03G9/08
Filed: 1990-06-13
Abstract: Abstract of the Disclosure A method of producing a master batch for the production of toners used in electrophotography is disclosed, which comprises: mixing and kneading a binder resin in an amountof 100 parts by weight, at least one of dyes and pigments in an amount of 1-300 parts by weight and an organic solvent in an amount of 5-500 parts by weight in which the binder resin is soluble, and then, optionally crushing or granulating the mixture.         There is further disclosed a method of producing toners for use in electrophotography which comprises: adding 100 parts by weight of a second binder resin to 2-20 parts by weight of the master batch together with an effective amount of an additive when necessary, to form a second mixture, kneading the second mixture to a composition; and (c) crushing the composition to toner particles.
Patent CA-2019948-A1 (CA)
Title: Rail securement apparatus
Inventor: BUNCHKOWSKI DUANE J
IPC: E01B9/28
Filed: 1990-06-27
Abstract: A rail securement clip is disclosed as having a base having an opening therethrough  for receiving an anchor projecting from a foundation, a nose extending laterally of the base from the upper portion of the base and overlying the foot of the rail, and a pair of spaced apart fingers affixed to the nose and to an upper portion of the base. The through opening in the base has an orifice positioned in the space between the fingers.   The base and fingers form a recess into which the anchor projects.  Securement means may be fastened to the anchor and positioned within the recess to hold the apparatus against the rail and thereby secure the rail to the foundation. The nose may include a rubber pad means engaging the foot of the rail to provide an energy absorbing securement of the rail.  The through opening in the base may have an open side facing in the direction of the lateral extension of the nose from the base so that the anchor projecting through the opening may be positioned adjacent to or in engagement with the foot of the rail.
Patent CA-2021719-A1 (CA)
Inventor: GROLLIER JEAN-FRANCOIS
IPC: A61K8/33
Filed: 1990-07-20
Abstract: L'invention concerne une composition tinctoriale pour fibres kératiniques, en particulier pour fibres kératiniques humaines, contenant dans un milieu aqueux approprié pour la teinture, au moins un colorant indolique en association avec un moins une paraphénylènediamine monosubstituée sur l'un des groupes amino, répondant à la formule: (II) dans laquelle R12 désigne un atome d'hydrogène ou un groupement alkyle inférieur, R13 désigne un atome d'hydrogène, un groupement alkyle inférieur, un groupement alcoxy inférieur ou un atome d'halogène, et R14 désigne un atome d'hydrogène, un groupement alkyle inférieur, un groupement alcoxy inférieur ou un atome d'halogène, R14 occupant l'une quelconque des positions restantes du noyau benzénique, ou l'un de ses sels d'addition d'acide. La composition selon l'invention ne contient pas d'agent oxydant autre que l'air, et permet d'obtenir très rapidement une teinture progressive des cheveux à l'air ambiant, en des nuances naturelles allant du blond au noir.
Patent CA-2022906-A1 (CA)
Title: Shaver having a clipper
Inventor: LEE CHIN-PIAO
IPC: B26B21/40
Filed: 1990-08-08
Abstract: SHAVER HAVING A CLIPPER ABSTRACT     A  shaver  having a clipper  comprises  a  single elongated handle with one end detachably connected with a  shaving  unit  and the other end  connected  with  a clipper  adapted  for  trimming  user's  nose  hair  by inserting  an  indented  end into the user's  nose  and trimming the hair therein through a smooth operation.
Patent CA-2023072-A1 (CA)
Title: Polyimide waveguides as optical sensors
Inventor: FRANKE HILMAR
IPC: G01N21/55
Filed: 1990-08-10
Abstract: Abstract of the disclosure Polyimide waveguides as optical sensors The invention relates to a polyimide waveguide which is used as an optical sensor for the quantitative determina-tion of liquids in the vapor phase, as well as for the determination of NH3, "NH4OH", NO2 and N2O5.          The polyimide waveguide is composed of a cover layer, one or two layers of a polyamide-imide or a perfluorinated polyimide and a substrate.
Patent CA-2026584-A1 (CA)
Title: Electroplating cell anode
Inventor: NIKSA ANDREW J
IPC: C25D7/06
Filed: 1990-10-01
Abstract: ELECTROPLATING CELL ANODE                  ABSTRACT OF THE INVENTION      The present invention resides in an anode structure as well as in an electrolytic cell utilizing the anode structure.  The anode structure comprises a resilient anode sheet having an active anode surface, and a support substructure for the anode sheet.  The anode substructure has a predetermined configuration.  Means are provided for flexing the anode sheet onto the anode substructure so that the anode sheet conforms to the configuration of the anode substructure and at the same time provides an adequate electrical junction for uniform current distribution.
Patent CA-2031448-A1 (CA)
Inventor: HERDLICKA ALWIN
IPC: E21D20/02
Filed: 1990-12-04
Abstract: For fastening anchoring means, such as anchor rods, in solid accommodating materials without expansion pressure, mortar compositions are used, which consist of a hardener and a resin. To improve the strength properties, vinyl ester urethane resin is employed, which optionally can be accelerated.
Patent CA-2031881-A1 (CA)
Title: Fast response digital interface apparatus and method
Inventor: LANDMANN WOLF S
IPC: G01D5/246
Filed: 1990-12-10
Abstract: FAST RESPONSE DIGITAL INTERFACE APPARATUS AND METHOD              ABSTRACT           The digital interface divides a digital number (No) representing the sensor reading into a most significant part (MSB) and a least significant part (LSB).  The most significant part is used to determine the pulse width of a sequence of pulses and the least significant part is used to selectively modify the pulses by increasing the pulse width of selected ones of the pulses.  A lookup table (54) is  used  to  evenly  distribute  the  lengthened pulses throughout the pulse train.  The resulting waveform has a DC component representative of the original digital number which is extracted by low pass filtering.  The energy in the non-DC spectral components is appreciably attenuated as compared  to  the  spectrum  of  a  standard  pulse  width modulated waveform.  This makes it possible to use a filter (28) with considerably higher cutoff frequency and with considerably improved response time for a given resolution.
Patent CA-2033057-A1 (CA)
Title: Transfer film transfer device
Inventor: MURASAKI TAKUMI
IPC: B65H37/00
Filed: 1990-05-18
Abstract: [ABSTRACT]    This invention has a technical field relating to a transfer film transfer device for transferring a paint film to a receiving surface.    There has been no inexpensive and handy device for efficiently transferring such a paint film to a receiving surface.    A transfer device of this invention comprises a feed reel  (2)  for winding  and storing,  prior to feeding, a tape (1) having a transfer film formed in film form which is transferable to a receiving surface (4) by pressing or heating, and a takeup reel (7) for taking up the tape (1) fed, a head (5) for contacting and pressing or heating, for transfer to the receiving surface (4), the tape (1) fed from said feed reel (2) or the transfer film separated from said tape (1), and a case (6) housing said feed reel (2), takeup reel (7) and head (5).   Although it is inexpensive,  the transfer film can be transferred to the receiving surface efficiently, easily and reliably.    The transfer device of the present invention is suited for erasing or pasting characters and pictures with ease.
Patent CA-2033488-A1 (CA)
Title: Ceiling mount microwave transceiver with 360 degree radiation pattern
Inventor: WALLACE JOHN D
IPC: G01S13/04
Filed: 1991-01-02
Abstract: ABSTRACT    A microwave transceiver comprising a Gunn diode microwave radiation source, a Schottky-barrier diode mixer, a closed rectangular waveguide cavity, a coaxial-waveguide joint, and a monopole antenna providing a microwave radiation dispersion/collection pattern occupying a spatial region elevated from and extending radially outward and 360° in azimuth with respect to said antenna, said spatial region having a substantially spatulate radial cross-section.
Patent CA-2034195-A1 (CA)
Inventor: HAGEMAN MARTIN P
IPC: B66F7/22
Filed: 1991-01-15
Abstract: A hydraulically operated dockboard including a ramp which is hinged at its rear edge to the frame of the dockboard, and a lip is hinged to the forward edge of the ramp and can be pivoted between a downwardly hanging pendant position and an extended position.  A main hydraulic cylinder unit interconnects the frame and the ramp and by operating the cylinder unit the ramp can be pivoted upwardly from a horizontal cross traffic position to an upwardly inclined position.  A lip cylinder unit interconnects the ramp and the lip, and operation of the lip cylinder unit will pivot the lip from the pendant to an extended position.  The hydraulic system is constructed so that fluid is initially supplied to the main cylinder unit by a pump to raise the ramp, and when the main cylinder unit is fully extended, the increased pressure will shift a valve to supply fluid to the lip cylinder unit.  The valve is constructed so that the valve will be maintained in the shifted position by substantially less pressure than that required to initially shift the valve.  When operation of the pump is discontinued, the ramp will descend and the back pressure generated by the weight of the lip acting against the valve will retain the valve in the shifted position to maintain the lip in the extended condition until the lip engages the bed of a truck.                :
Patent CA-2037267-A1 (CA)
Inventor: TADA NAOFUMI
IPC: B60L13/04
Filed: 1991-02-27
Abstract: The present invention relates to a superconducting magnetically levitated train and train system.  The train includes a plurality of cars connected to each other, a group of superconducting magnets attached to the cars and a coil provided on the ground.  The superconducting magnetically levitated train is levitated by the magnetically induced repulsion between the superconducting magnets and the coil on the ground.  The invention is characterized in that the superconducting magnet on a specified car has a predetermined stability margin which is larger than the stability margin of a superconducting magnet on the other cars.  A method of controlling the superconducting magnetically levitated train is disclosed which includes detecting a driven state of a superconducting magnet on a specified car and varying and controlling the travelling conditions of the train so that the stability margin of the superconducting magnet on the specific car is changed in accordance with the command from a train control means.  A superconducting coil for the superconducting magnetically levitated train is also disclosed.  The coil is a coil of a composite superconducting wire composed of multifilamentary NbTi wire having a low copper ratio.  The outer surface thereof is coated with thin high purity aluminum or the wire accommodates high purity aluminum at the central portion of the cross section thereof.
Patent CA-2037662-A1 (CA)
Title: Extruding flat synthetic resin strands
Inventor: PFUELB ROLAND
IPC: B29C69/00
Filed: 1991-03-06
Abstract: Abstract of the Disclosure A plurality of synthetic resin strands are made in a nozzle having a housing forming a passage having an upstream end and a downstream end.  The downstream end is formed as an elon-gated slot having a relatively great length and a relatively short width measured perpendicular to its length.  An extruder connected to the housing at the upstream end of the passage introduces a fluent thermoplastic synthetic resin thereinto under pressure so the resin exits from the slot in a predetermined flow direction.  A plurality of blades are retained in holders on the nozzle immediately downstream of the downstream of the passage at the slot with each blade traversing the slot crosswise of its length.  thus the resin exiting from the slot is cut by the blades into the strands.  The holders are adjustable along the slot for horizontally displacing and fixing the blades so as to vary the dimensions of the strands.
Patent CA-2039703-A1 (CA)
Title: Onium salts and the use thereof as photoinitiators
Inventor: SAEVA FRANKLIN D
IPC: G03C1/675
Filed: 1990-10-01
Abstract: NOVEL ONIUM SALTS AND THE USE   THEREOF AS PHOTOINITIATORS        Abstract Sulfonium, selenonium, arsonium, ammonium and phosphonium salts, useful as photoinitiators, comprise:         a chromophore which absorbs visible radiation, the chromophore (1) having a removable positive hydrogen ion and (Z) exhibiting a higher energy occupied molecular orbital than at least one other substituent attached to the S, Se, As, N or P atom of the salt;         a group which links the chromophore to the S, Se, As, N or P atom of the salt, the group partially preventing a resonance between the chromophore and the other substituents in the salt;         at least one substituent comprising an electron withdrawing group and exhibiting a lower unoccupied molecular orbital than the chromophore; and, an anion; the salts being capable, upon exposure to visible radiation, of forming a Bronsted acid.
Patent CA-2039864-A1 (CA)
Title: Search coil assembly with low resistance coils and method for making same
Inventor: MORAN JAMES M
IPC: G01V3/10
Filed: 1991-04-05
Abstract: ABSTRACT OF THE DISCLOSURE    A  metal  detector search coil assembly comprising a frame assembly  having   an   aperture   therethrough,   electrically conductive  strands wound upon the frame assembly,  each of the strands comprising a conductor including a bundle of fine wires being so woven that each wire occupies  all  positions  in  the conductor  to  substantially  the same extent,  each wire being insulated from the remaining wires in the conductor  except  at end  terminals  thereof,  potting  plastic disposed on external surfaces of the frame assembly and embedding the  strands,  the potting  plastic being a selected one of (1) a binary resin and (2) a cast polyurethane,  and a  metal  housing  enclosing  the potting plastic; and a method of making same.
Patent CA-2042233-A1 (CA)
Inventor: JAMES ROBERT B JR
IPC: C10N40/08
Filed: 1991-05-09
Abstract: Hydrogenated distillable hydrocarbonaceous product is produced from a first feed comprising hydrocarbonaceous compounds and having a non-distillable component, and a second feed comprising halogenated organic compounds by contacting the first feed with a hot hydrogen-rich gaseous stream to increase the temperature of this feed stream and to vaporize at least a portion of the distillable hydrocarbonaceous compounds thereby producing a distillable hydrocarbonaceous product which is immediately hydrogenated in an integrated first hydrogenation zone and thereafter contacting the second feed with hydrogen in a second hydrogenation zone at hydrogenation conditions to produce a hydrogenated hydrocarbonaceous product and at least one water-soluble inorganic halide compound.
Patent CA-2043208-A1 (CA)
Title: Dual-stator induction synchronous motor
Inventor: SATAKE TOSHIHIKO
IPC: H02K19/02
Filed: 1991-05-24
Abstract: ABSTRACT OF THE DISCLOSURE          An induction synchronous motor with two rotor cores and two stator cores includes a rotor having two mutually connected first rotor windings of a predetermined number of poles and two mutually connected second rotor windings connected of a different number of poles with respect to the number of poles of the first rotor windings; and two stators having two stator windings of the number of poles identical with the number of poles of the first rotor windings and two excitation windings of the number of poles identical with the number of poles of the second rotor windings.  The motor further includes a rectifier circuit for rectifying outputs from the second rotor windings and supplying the rectified voltages to the first rotor windings at a syn-chronous operation.  A phase shifter associated with the first stator windings produces a phase difference of 180° between a rotating magnetic field around one of the rotor cores and that around the other one of the rotor cores.          The motor starts based on a theory of an ordinary induction motor under a phase difference of 0° and can operate as a synchronous motor after the rotating speed has reached its synchronous speed under the phase difference of 180° produced by the phase shifter.
Patent CA-2043341-A1 (CA)
Title: Pharmaceutical compounds
Inventor: CLARKE TRAFFORD
IPC: C07D333/34
Filed: 1991-05-27
Abstract: PHARMACEUTICAL COMPOUNDS               ABSTRACT OF THE INVENTION     A pharmaceutical compound of the formula   in which R1 is halo-C1 lo allyl, C1 -l0 allylthio, halo C1 lo alkylthio or optionally substituted phenylthio, R2 is hydrogen or C1-4 alkyl, R3 and R4 are each hydrogen or C1-4 alkyl, and X is oxygen or sulphur; and salts thereof.
Patent CA-2044559-A1 (CA)
Title: Method and apparatus for selectively activating well tools from the surface
Inventor: CARISELLA JAMES V
IPC: F42D1/04
Filed: 1991-06-13
Abstract: ABSTRACT OF THE INVENTION             In the representative embodiments of the several methods and apparatus of the invention disclosed herein, a movable detonating member is arranged to be selectively impelled against an impact-responsive detonator on a well tool having one or more explosive devices. The movable detonating member is initially restrained from moving in relation of the tool body by a heat-responsive material which, in one embodiment, is operative to release the detonating member when an electrical heater on the tool is initiated from the surface for melting the bonding material or, in another embodiment, releases the detonating member when the material melted by elevated well bore temperatures. Other safety measures disclosed herein include temperature-sensitive barriers which, in one embodiment, prevents the movement of the detonating member against the explosive detonator until the material in the barrier is changed by elevated well bore temperatures as well as a second embodiment that precludes the transmission of detonating forces from the detonator and other explosives in the train of explosives on the tool.